pre-commit run -a

This commit is contained in:
Mathis Logemann 2022-08-16 18:52:30 +02:00
parent df141876d0
commit e3d8e55a79
154 changed files with 44003 additions and 41746 deletions

View file

@ -23,18 +23,23 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_rendering_buffer.h" #include "agg_rendering_buffer.h"
namespace agg { namespace agg
{
//===================================================one_component_mask_u8 //===================================================one_component_mask_u8
struct one_component_mask_u8 struct one_component_mask_u8
{ {
static unsigned calculate(const int8u* p) { return *p; } static unsigned calculate(const int8u* p) { return *p; }
}; };
//=====================================================rgb_to_gray_mask_u8 //=====================================================rgb_to_gray_mask_u8
template<unsigned R, unsigned G, unsigned B> template<unsigned R, unsigned G, unsigned B>
struct rgb_to_gray_mask_u8 struct rgb_to_gray_mask_u8
{ {
static unsigned calculate(const int8u* p) { return (p[R] * 77 + p[G] * 150 + p[B] * 29) >> 8; } static unsigned calculate(const int8u* p)
{
return (p[R]*77 + p[G]*150 + p[B]*29) >> 8;
}
}; };
//==========================================================alpha_mask_u8 //==========================================================alpha_mask_u8
@ -44,26 +49,31 @@ class alpha_mask_u8
public: public:
typedef int8u cover_type; typedef int8u cover_type;
typedef alpha_mask_u8<Step, Offset, MaskF> self_type; typedef alpha_mask_u8<Step, Offset, MaskF> self_type;
enum cover_scale_e { cover_shift = 8, cover_none = 0, cover_full = 255 }; enum cover_scale_e
{
cover_shift = 8,
cover_none = 0,
cover_full = 255
};
alpha_mask_u8() alpha_mask_u8() : m_rbuf(0) {}
: m_rbuf(0) explicit alpha_mask_u8(rendering_buffer& rbuf) : m_rbuf(&rbuf) {}
{}
explicit alpha_mask_u8(rendering_buffer& rbuf)
: m_rbuf(&rbuf)
{}
void attach(rendering_buffer& rbuf) { m_rbuf = &rbuf; } void attach(rendering_buffer& rbuf) { m_rbuf = &rbuf; }
MaskF& mask_function() { return m_mask_function; } MaskF& mask_function() { return m_mask_function; }
const MaskF& mask_function() const { return m_mask_function; } const MaskF& mask_function() const { return m_mask_function; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
cover_type pixel(int x, int y) const cover_type pixel(int x, int y) const
{ {
if (x >= 0 && y >= 0 && x < (int)m_rbuf->width() && y < (int)m_rbuf->height()) if(x >= 0 && y >= 0 &&
x < (int)m_rbuf->width() &&
y < (int)m_rbuf->height())
{ {
return (cover_type)m_mask_function.calculate(m_rbuf->row_ptr(y) + x * Step + Offset); return (cover_type)m_mask_function.calculate(
m_rbuf->row_ptr(y) + x * Step + Offset);
} }
return 0; return 0;
} }
@ -71,15 +81,19 @@ class alpha_mask_u8
//-------------------------------------------------------------------- //--------------------------------------------------------------------
cover_type combine_pixel(int x, int y, cover_type val) const cover_type combine_pixel(int x, int y, cover_type val) const
{ {
if (x >= 0 && y >= 0 && x < (int)m_rbuf->width() && y < (int)m_rbuf->height()) if(x >= 0 && y >= 0 &&
x < (int)m_rbuf->width() &&
y < (int)m_rbuf->height())
{ {
return ( return (cover_type)((cover_full + val *
cover_type)((cover_full + val * m_mask_function.calculate(m_rbuf->row_ptr(y) + x * Step + Offset)) >> m_mask_function.calculate(
m_rbuf->row_ptr(y) + x * Step + Offset)) >>
cover_shift); cover_shift);
} }
return 0; return 0;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void fill_hspan(int x, int y, cover_type* dst, int num_pix) const void fill_hspan(int x, int y, cover_type* dst, int num_pix) const
{ {
@ -125,8 +139,10 @@ class alpha_mask_u8
{ {
*covers++ = (cover_type)m_mask_function.calculate(mask); *covers++ = (cover_type)m_mask_function.calculate(mask);
mask += Step; mask += Step;
} while (--count);
} }
while(--count);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void combine_hspan(int x, int y, cover_type* dst, int num_pix) const void combine_hspan(int x, int y, cover_type* dst, int num_pix) const
@ -171,10 +187,13 @@ class alpha_mask_u8
const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset; const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset;
do do
{ {
*covers = (cover_type)((cover_full + (*covers) * m_mask_function.calculate(mask)) >> cover_shift); *covers = (cover_type)((cover_full + (*covers) *
m_mask_function.calculate(mask)) >>
cover_shift);
++covers; ++covers;
mask += Step; mask += Step;
} while (--count); }
while(--count);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -222,7 +241,8 @@ class alpha_mask_u8
{ {
*covers++ = (cover_type)m_mask_function.calculate(mask); *covers++ = (cover_type)m_mask_function.calculate(mask);
mask += m_rbuf->stride(); mask += m_rbuf->stride();
} while (--count); }
while(--count);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -268,11 +288,15 @@ class alpha_mask_u8
const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset; const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset;
do do
{ {
*covers = (cover_type)((cover_full + (*covers) * m_mask_function.calculate(mask)) >> cover_shift); *covers = (cover_type)((cover_full + (*covers) *
m_mask_function.calculate(mask)) >>
cover_shift);
++covers; ++covers;
mask += m_rbuf->stride(); mask += m_rbuf->stride();
} while (--count);
} }
while(--count);
}
private: private:
alpha_mask_u8(const self_type&); alpha_mask_u8(const self_type&);
@ -282,6 +306,7 @@ class alpha_mask_u8
MaskF m_mask_function; MaskF m_mask_function;
}; };
typedef alpha_mask_u8<1, 0> alpha_mask_gray8; //----alpha_mask_gray8 typedef alpha_mask_u8<1, 0> alpha_mask_gray8; //----alpha_mask_gray8
typedef alpha_mask_u8<3, 0> alpha_mask_rgb24r; //----alpha_mask_rgb24r typedef alpha_mask_u8<3, 0> alpha_mask_rgb24r; //----alpha_mask_rgb24r
@ -319,6 +344,8 @@ typedef alpha_mask_u8<4, 1, rgb_to_gray_mask_u8<0, 1, 2>> alpha_mask_argb32gray;
typedef alpha_mask_u8<4, 0, rgb_to_gray_mask_u8<2, 1, 0> > alpha_mask_bgra32gray; //----alpha_mask_bgra32gray typedef alpha_mask_u8<4, 0, rgb_to_gray_mask_u8<2, 1, 0> > alpha_mask_bgra32gray; //----alpha_mask_bgra32gray
typedef alpha_mask_u8<4, 1, rgb_to_gray_mask_u8<2, 1, 0> > alpha_mask_abgr32gray; //----alpha_mask_abgr32gray typedef alpha_mask_u8<4, 1, rgb_to_gray_mask_u8<2, 1, 0> > alpha_mask_abgr32gray; //----alpha_mask_abgr32gray
//==========================================================amask_no_clip_u8 //==========================================================amask_no_clip_u8
template<unsigned Step=1, unsigned Offset=0, class MaskF=one_component_mask_u8> template<unsigned Step=1, unsigned Offset=0, class MaskF=one_component_mask_u8>
class amask_no_clip_u8 class amask_no_clip_u8
@ -326,33 +353,40 @@ class amask_no_clip_u8
public: public:
typedef int8u cover_type; typedef int8u cover_type;
typedef amask_no_clip_u8<Step, Offset, MaskF> self_type; typedef amask_no_clip_u8<Step, Offset, MaskF> self_type;
enum cover_scale_e { cover_shift = 8, cover_none = 0, cover_full = 255 }; enum cover_scale_e
{
cover_shift = 8,
cover_none = 0,
cover_full = 255
};
amask_no_clip_u8() amask_no_clip_u8() : m_rbuf(0) {}
: m_rbuf(0) explicit amask_no_clip_u8(rendering_buffer& rbuf) : m_rbuf(&rbuf) {}
{}
explicit amask_no_clip_u8(rendering_buffer& rbuf)
: m_rbuf(&rbuf)
{}
void attach(rendering_buffer& rbuf) { m_rbuf = &rbuf; } void attach(rendering_buffer& rbuf) { m_rbuf = &rbuf; }
MaskF& mask_function() { return m_mask_function; } MaskF& mask_function() { return m_mask_function; }
const MaskF& mask_function() const { return m_mask_function; } const MaskF& mask_function() const { return m_mask_function; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
cover_type pixel(int x, int y) const cover_type pixel(int x, int y) const
{ {
return (cover_type)m_mask_function.calculate(m_rbuf->row_ptr(y) + x * Step + Offset); return (cover_type)m_mask_function.calculate(
m_rbuf->row_ptr(y) + x * Step + Offset);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
cover_type combine_pixel(int x, int y, cover_type val) const cover_type combine_pixel(int x, int y, cover_type val) const
{ {
return (cover_type)((cover_full + val * m_mask_function.calculate(m_rbuf->row_ptr(y) + x * Step + Offset)) >> return (cover_type)((cover_full + val *
m_mask_function.calculate(
m_rbuf->row_ptr(y) + x * Step + Offset)) >>
cover_shift); cover_shift);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void fill_hspan(int x, int y, cover_type* dst, int num_pix) const void fill_hspan(int x, int y, cover_type* dst, int num_pix) const
{ {
@ -361,8 +395,11 @@ class amask_no_clip_u8
{ {
*dst++ = (cover_type)m_mask_function.calculate(mask); *dst++ = (cover_type)m_mask_function.calculate(mask);
mask += Step; mask += Step;
} while (--num_pix);
} }
while(--num_pix);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void combine_hspan(int x, int y, cover_type* dst, int num_pix) const void combine_hspan(int x, int y, cover_type* dst, int num_pix) const
@ -370,11 +407,15 @@ class amask_no_clip_u8
const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset; const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset;
do do
{ {
*dst = (cover_type)((cover_full + (*dst) * m_mask_function.calculate(mask)) >> cover_shift); *dst = (cover_type)((cover_full + (*dst) *
m_mask_function.calculate(mask)) >>
cover_shift);
++dst; ++dst;
mask += Step; mask += Step;
} while (--num_pix);
} }
while(--num_pix);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void fill_vspan(int x, int y, cover_type* dst, int num_pix) const void fill_vspan(int x, int y, cover_type* dst, int num_pix) const
@ -384,8 +425,10 @@ class amask_no_clip_u8
{ {
*dst++ = (cover_type)m_mask_function.calculate(mask); *dst++ = (cover_type)m_mask_function.calculate(mask);
mask += m_rbuf->stride(); mask += m_rbuf->stride();
} while (--num_pix);
} }
while(--num_pix);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void combine_vspan(int x, int y, cover_type* dst, int num_pix) const void combine_vspan(int x, int y, cover_type* dst, int num_pix) const
@ -393,10 +436,13 @@ class amask_no_clip_u8
const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset; const int8u* mask = m_rbuf->row_ptr(y) + x * Step + Offset;
do do
{ {
*dst = (cover_type)((cover_full + (*dst) * m_mask_function.calculate(mask)) >> cover_shift); *dst = (cover_type)((cover_full + (*dst) *
m_mask_function.calculate(mask)) >>
cover_shift);
++dst; ++dst;
mask += m_rbuf->stride(); mask += m_rbuf->stride();
} while (--num_pix); }
while(--num_pix);
} }
private: private:
@ -407,6 +453,7 @@ class amask_no_clip_u8
MaskF m_mask_function; MaskF m_mask_function;
}; };
typedef amask_no_clip_u8<1, 0> amask_no_clip_gray8; //----amask_no_clip_gray8 typedef amask_no_clip_u8<1, 0> amask_no_clip_gray8; //----amask_no_clip_gray8
typedef amask_no_clip_u8<3, 0> amask_no_clip_rgb24r; //----amask_no_clip_rgb24r typedef amask_no_clip_u8<3, 0> amask_no_clip_rgb24r; //----amask_no_clip_rgb24r
@ -444,6 +491,9 @@ typedef amask_no_clip_u8<4, 1, rgb_to_gray_mask_u8<0, 1, 2>> amask_no_clip_argb3
typedef amask_no_clip_u8<4, 0, rgb_to_gray_mask_u8<2, 1, 0> > amask_no_clip_bgra32gray; //----amask_no_clip_bgra32gray typedef amask_no_clip_u8<4, 0, rgb_to_gray_mask_u8<2, 1, 0> > amask_no_clip_bgra32gray; //----amask_no_clip_bgra32gray
typedef amask_no_clip_u8<4, 1, rgb_to_gray_mask_u8<2, 1, 0> > amask_no_clip_abgr32gray; //----amask_no_clip_abgr32gray typedef amask_no_clip_u8<4, 1, rgb_to_gray_mask_u8<2, 1, 0> > amask_no_clip_abgr32gray; //----amask_no_clip_abgr32gray
} // namespace agg
}
#endif #endif

View file

@ -23,7 +23,8 @@
#include <cmath> #include <cmath>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//=====================================================================arc //=====================================================================arc
// //
@ -32,13 +33,16 @@ namespace agg {
class arc class arc
{ {
public: public:
arc() arc() : m_scale(1.0), m_initialized(false) {}
: m_scale(1.0) arc(double x, double y,
, m_initialized(false) double rx, double ry,
{} double a1, double a2,
arc(double x, double y, double rx, double ry, double a1, double a2, bool ccw = true); bool ccw=true);
void init(double x, double y, double rx, double ry, double a1, double a2, bool ccw = true); void init(double x, double y,
double rx, double ry,
double a1, double a2,
bool ccw=true);
void approximation_scale(double s); void approximation_scale(double s);
double approximation_scale() const { return m_scale; } double approximation_scale() const { return m_scale; }
@ -63,6 +67,8 @@ class arc
unsigned m_path_cmd; unsigned m_path_cmd;
}; };
} // namespace agg
}
#endif #endif

View file

@ -19,18 +19,16 @@
#include <cstring> #include <cstring>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//-------------------------------------------------------pod_array_adaptor //-------------------------------------------------------pod_array_adaptor
template<class T> template<class T> class pod_array_adaptor
class pod_array_adaptor
{ {
public: public:
typedef T value_type; typedef T value_type;
pod_array_adaptor(T* array, unsigned _size) pod_array_adaptor(T* array, unsigned _size) :
: m_array(array) m_array(array), m_size(_size) {}
, m_size(_size)
{}
unsigned size() const { return m_size; } unsigned size() const { return m_size; }
const T& operator [] (unsigned i) const { return m_array[i]; } const T& operator [] (unsigned i) const { return m_array[i]; }
@ -44,16 +42,19 @@ class pod_array_adaptor
unsigned m_size; unsigned m_size;
}; };
//---------------------------------------------------------pod_auto_array //---------------------------------------------------------pod_auto_array
template<class T, unsigned Size> template<class T, unsigned Size> class pod_auto_array
class pod_auto_array
{ {
public: public:
typedef T value_type; typedef T value_type;
typedef pod_auto_array<T, Size> self_type; typedef pod_auto_array<T, Size> self_type;
pod_auto_array() {} pod_auto_array() {}
explicit pod_auto_array(const T* c) { memcpy(m_array, c, sizeof(T) * Size); } explicit pod_auto_array(const T* c)
{
memcpy(m_array, c, sizeof(T) * Size);
}
const self_type& operator = (const T* c) const self_type& operator = (const T* c)
{ {
@ -72,17 +73,15 @@ class pod_auto_array
T m_array[Size]; T m_array[Size];
}; };
//--------------------------------------------------------pod_auto_vector //--------------------------------------------------------pod_auto_vector
template<class T, unsigned Size> template<class T, unsigned Size> class pod_auto_vector
class pod_auto_vector
{ {
public: public:
typedef T value_type; typedef T value_type;
typedef pod_auto_vector<T, Size> self_type; typedef pod_auto_vector<T, Size> self_type;
pod_auto_vector() pod_auto_vector() : m_size(0) {}
: m_size(0)
{}
void remove_all() { m_size = 0; } void remove_all() { m_size = 0; }
void clear() { m_size = 0; } void clear() { m_size = 0; }
@ -102,35 +101,32 @@ class pod_auto_vector
unsigned m_size; unsigned m_size;
}; };
//---------------------------------------------------------------pod_array //---------------------------------------------------------------pod_array
template<class T> template<class T> class pod_array
class pod_array
{ {
public: public:
typedef T value_type; typedef T value_type;
typedef pod_array<T> self_type; typedef pod_array<T> self_type;
~pod_array() { pod_allocator<T>::deallocate(m_array, m_size); } ~pod_array() { pod_allocator<T>::deallocate(m_array, m_size); }
pod_array() pod_array() : m_array(0), m_size(0) {}
: m_array(0)
, m_size(0) pod_array(unsigned _size) :
m_array(pod_allocator<T>::allocate(_size)),
m_size(_size)
{} {}
pod_array(unsigned _size) pod_array(const self_type& v) :
: m_array(pod_allocator<T>::allocate(_size)) m_array(pod_allocator<T>::allocate(v.m_size)),
, m_size(_size) m_size(v.m_size)
{}
pod_array(const self_type& v)
: m_array(pod_allocator<T>::allocate(v.m_size))
, m_size(v.m_size)
{ {
memcpy(m_array, v.m_array, sizeof(T) * m_size); memcpy(m_array, v.m_array, sizeof(T) * m_size);
} }
pod_array(self_type&& rhs) pod_array(self_type && rhs) :
: m_array(rhs.m_array) m_array(rhs.m_array),
, m_size(rhs.m_size) m_size(rhs.m_size)
{ {
rhs.m_array = nullptr; rhs.m_array = nullptr;
rhs.m_size = 0; rhs.m_size = 0;
@ -160,28 +156,24 @@ class pod_array
const T* data() const { return m_array; } const T* data() const { return m_array; }
T* data() { return m_array; } T* data() { return m_array; }
private: private:
T* m_array; T* m_array;
unsigned m_size; unsigned m_size;
}; };
//--------------------------------------------------------------pod_vector //--------------------------------------------------------------pod_vector
// A simple class template to store Plain Old Data, a vector // A simple class template to store Plain Old Data, a vector
// of a fixed size. The data is continous in memory // of a fixed size. The data is continous in memory
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T> class pod_vector
class pod_vector
{ {
public: public:
typedef T value_type; typedef T value_type;
~pod_vector() { pod_allocator<T>::deallocate(m_array, m_capacity); } ~pod_vector() { pod_allocator<T>::deallocate(m_array, m_capacity); }
pod_vector() pod_vector() : m_size(0), m_capacity(0), m_array(0) {}
: m_size(0)
, m_capacity(0)
, m_array(0)
{}
pod_vector(unsigned cap, unsigned extra_tail=0); pod_vector(unsigned cap, unsigned extra_tail=0);
// Copying // Copying
@ -201,7 +193,10 @@ class pod_vector
// Resize keeping the content. // Resize keeping the content.
void resize(unsigned new_size); void resize(unsigned new_size);
void zero() { memset(m_array, 0, sizeof(T) * m_size); } void zero()
{
memset(m_array, 0, sizeof(T) * m_size);
}
void add(const T& v) { m_array[m_size++] = v; } void add(const T& v) { m_array[m_size++] = v; }
void push_back(const T& v) { m_array[m_size++] = v; } void push_back(const T& v) { m_array[m_size++] = v; }
@ -222,11 +217,7 @@ class pod_vector
void remove_all() { m_size = 0; } void remove_all() { m_size = 0; }
void clear() { m_size = 0; } void clear() { m_size = 0; }
void cut_at(unsigned num) void cut_at(unsigned num) { if(num < m_size) m_size = num; }
{
if (num < m_size)
m_size = num;
}
private: private:
unsigned m_size; unsigned m_size;
@ -255,6 +246,7 @@ void pod_vector<T>::allocate(unsigned _size, unsigned extra_tail)
m_size = _size; m_size = _size;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T>
void pod_vector<T>::resize(unsigned new_size) void pod_vector<T>::resize(unsigned new_size)
@ -276,29 +268,25 @@ void pod_vector<T>::resize(unsigned new_size)
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T> pod_vector<T>::pod_vector(unsigned cap, unsigned extra_tail) :
pod_vector<T>::pod_vector(unsigned cap, unsigned extra_tail) m_size(0),
: m_size(0) m_capacity(cap + extra_tail),
, m_capacity(cap + extra_tail) m_array(pod_allocator<T>::allocate(m_capacity)) {}
, m_array(pod_allocator<T>::allocate(m_capacity))
{}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T> pod_vector<T>::pod_vector(const pod_vector<T>& v) :
pod_vector<T>::pod_vector(const pod_vector<T>& v) m_size(v.m_size),
: m_size(v.m_size) m_capacity(v.m_capacity),
, m_capacity(v.m_capacity) m_array(v.m_capacity ? pod_allocator<T>::allocate(v.m_capacity) : 0)
, m_array(v.m_capacity ? pod_allocator<T>::allocate(v.m_capacity) : 0)
{ {
memcpy(m_array, v.m_array, sizeof(T) * v.m_size); memcpy(m_array, v.m_array, sizeof(T) * v.m_size);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T> pod_vector<T>::pod_vector(pod_vector<T> && rhs) :
pod_vector<T>::pod_vector(pod_vector<T>&& rhs) m_size(rhs.m_size),
: m_size(rhs.m_size) m_capacity(rhs.m_capacity),
, m_capacity(rhs.m_capacity) m_array(rhs.m_array)
, m_array(rhs.m_array)
{ {
rhs.m_size = 0; rhs.m_size = 0;
rhs.m_capacity = 0; rhs.m_capacity = 0;
@ -306,21 +294,18 @@ pod_vector<T>::pod_vector(pod_vector<T>&& rhs)
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T> const pod_vector<T>&
const pod_vector<T>& pod_vector<T>::operator=(const pod_vector<T>& v) pod_vector<T>::operator = (const pod_vector<T>&v)
{ {
allocate(v.m_size); allocate(v.m_size);
if (v.m_size) if(v.m_size) memcpy(m_array, v.m_array, sizeof(T) * v.m_size);
memcpy(m_array, v.m_array, sizeof(T) * v.m_size);
return *this; return *this;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T> void pod_vector<T>::serialize(int8u* ptr) const
void pod_vector<T>::serialize(int8u* ptr) const
{ {
if (m_size) if(m_size) memcpy(ptr, m_array, m_size * sizeof(T));
memcpy(ptr, m_array, m_size * sizeof(T));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -329,8 +314,7 @@ void pod_vector<T>::deserialize(const int8u* _data, unsigned _byte_size)
{ {
_byte_size /= sizeof(T); _byte_size /= sizeof(T);
allocate(_byte_size); allocate(_byte_size);
if (_byte_size) if(_byte_size) memcpy(m_array, _data, _byte_size * sizeof(T));
memcpy(m_array, _data, _byte_size * sizeof(T));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -360,11 +344,15 @@ void pod_vector<T>::insert_at(unsigned pos, const T& val)
// of increment to reallocate the pointer buffer. See the second constructor. // of increment to reallocate the pointer buffer. See the second constructor.
// By default, the incremeent value equals (1 << S), i.e., the block size. // By default, the incremeent value equals (1 << S), i.e., the block size.
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S = 6> template<class T, unsigned S=6> class pod_bvector
class pod_bvector
{ {
public: public:
enum block_scale_e { block_shift = S, block_size = 1 << block_shift, block_mask = block_size - 1 }; enum block_scale_e
{
block_shift = S,
block_size = 1 << block_shift,
block_mask = block_size - 1
};
typedef T value_type; typedef T value_type;
@ -395,8 +383,7 @@ class pod_bvector
} }
} }
template<class DataAccessor> template<class DataAccessor> void add_data(DataAccessor& data)
void add_data(DataAccessor& data)
{ {
while(data.size()) while(data.size())
{ {
@ -407,42 +394,81 @@ class pod_bvector
void cut_at(unsigned _size) void cut_at(unsigned _size)
{ {
if (_size < m_size) if(_size < m_size) m_size = _size;
m_size = _size;
} }
unsigned size() const { return m_size; } unsigned size() const { return m_size; }
const T& operator[](unsigned i) const { return m_blocks[i >> block_shift][i & block_mask]; } const T& operator [] (unsigned i) const
{
return m_blocks[i >> block_shift][i & block_mask];
}
T& operator[](unsigned i) { return m_blocks[i >> block_shift][i & block_mask]; } T& operator [] (unsigned i)
{
return m_blocks[i >> block_shift][i & block_mask];
}
const T& at(unsigned i) const { return m_blocks[i >> block_shift][i & block_mask]; } const T& at(unsigned i) const
{
return m_blocks[i >> block_shift][i & block_mask];
}
T& at(unsigned i) { return m_blocks[i >> block_shift][i & block_mask]; } T& at(unsigned i)
{
return m_blocks[i >> block_shift][i & block_mask];
}
T value_at(unsigned i) const { return m_blocks[i >> block_shift][i & block_mask]; } T value_at(unsigned i) const
{
return m_blocks[i >> block_shift][i & block_mask];
}
const T& curr(unsigned idx) const { return (*this)[idx]; } const T& curr(unsigned idx) const
{
return (*this)[idx];
}
T& curr(unsigned idx) { return (*this)[idx]; } T& curr(unsigned idx)
{
return (*this)[idx];
}
const T& prev(unsigned idx) const { return (*this)[(idx + m_size - 1) % m_size]; } const T& prev(unsigned idx) const
{
return (*this)[(idx + m_size - 1) % m_size];
}
T& prev(unsigned idx) { return (*this)[(idx + m_size - 1) % m_size]; } T& prev(unsigned idx)
{
return (*this)[(idx + m_size - 1) % m_size];
}
const T& next(unsigned idx) const { return (*this)[(idx + 1) % m_size]; } const T& next(unsigned idx) const
{
return (*this)[(idx + 1) % m_size];
}
T& next(unsigned idx) { return (*this)[(idx + 1) % m_size]; } T& next(unsigned idx)
{
return (*this)[(idx + 1) % m_size];
}
const T& last() const { return (*this)[m_size - 1]; } const T& last() const
{
return (*this)[m_size - 1];
}
T& last() { return (*this)[m_size - 1]; } T& last()
{
return (*this)[m_size - 1];
}
unsigned byte_size() const; unsigned byte_size() const;
void serialize(int8u* ptr) const; void serialize(int8u* ptr) const;
void deserialize(const int8u* data, unsigned byte_size); void deserialize(const int8u* data, unsigned byte_size);
void deserialize(unsigned start, const T& empty_val, const int8u* data, unsigned byte_size); void deserialize(unsigned start, const T& empty_val,
const int8u* data, unsigned byte_size);
template<class ByteAccessor> template<class ByteAccessor>
void deserialize(ByteAccessor data) void deserialize(ByteAccessor data)
@ -504,9 +530,9 @@ class pod_bvector
unsigned m_block_ptr_inc; unsigned m_block_ptr_inc;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S> pod_bvector<T, S>::~pod_bvector()
pod_bvector<T, S>::~pod_bvector()
{ {
if(m_num_blocks) if(m_num_blocks)
{ {
@ -521,6 +547,7 @@ pod_bvector<T, S>::~pod_bvector()
pod_allocator<T*>::deallocate(m_blocks, m_max_blocks); pod_allocator<T*>::deallocate(m_blocks, m_max_blocks);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
void pod_bvector<T, S>::free_tail(unsigned _size) void pod_bvector<T, S>::free_tail(unsigned _size)
@ -542,34 +569,40 @@ void pod_bvector<T, S>::free_tail(unsigned _size)
} }
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S> pod_bvector<T, S>::pod_bvector() :
pod_bvector<T, S>::pod_bvector() m_size(0),
: m_size(0) m_num_blocks(0),
, m_num_blocks(0) m_max_blocks(0),
, m_max_blocks(0) m_blocks(0),
, m_blocks(0) m_block_ptr_inc(block_size)
, m_block_ptr_inc(block_size) {
{} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
pod_bvector<T, S>::pod_bvector(unsigned block_ptr_inc) pod_bvector<T, S>::pod_bvector(unsigned block_ptr_inc) :
: m_size(0) m_size(0),
, m_num_blocks(0) m_num_blocks(0),
, m_max_blocks(0) m_max_blocks(0),
, m_blocks(0) m_blocks(0),
, m_block_ptr_inc(block_ptr_inc) m_block_ptr_inc(block_ptr_inc)
{} {
}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
pod_bvector<T, S>::pod_bvector(const pod_bvector<T, S>& v) pod_bvector<T, S>::pod_bvector(const pod_bvector<T, S>& v) :
: m_size(v.m_size) m_size(v.m_size),
, m_num_blocks(v.m_num_blocks) m_num_blocks(v.m_num_blocks),
, m_max_blocks(v.m_max_blocks) m_max_blocks(v.m_max_blocks),
, m_blocks(v.m_max_blocks ? pod_allocator<T*>::allocate(v.m_max_blocks) : 0) m_blocks(v.m_max_blocks ?
, m_block_ptr_inc(v.m_block_ptr_inc) pod_allocator<T*>::allocate(v.m_max_blocks) :
0),
m_block_ptr_inc(v.m_block_ptr_inc)
{ {
unsigned i; unsigned i;
for(i = 0; i < v.m_num_blocks; ++i) for(i = 0; i < v.m_num_blocks; ++i)
@ -579,9 +612,11 @@ pod_bvector<T, S>::pod_bvector(const pod_bvector<T, S>& v)
} }
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
const pod_bvector<T, S>& pod_bvector<T, S>::operator=(const pod_bvector<T, S>& v) const pod_bvector<T, S>&
pod_bvector<T, S>::operator = (const pod_bvector<T, S>& v)
{ {
unsigned i; unsigned i;
for(i = m_num_blocks; i < v.m_num_blocks; ++i) for(i = m_num_blocks; i < v.m_num_blocks; ++i)
@ -596,6 +631,7 @@ const pod_bvector<T, S>& pod_bvector<T, S>::operator=(const pod_bvector<T, S>& v
return *this; return *this;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
void pod_bvector<T, S>::allocate_block(unsigned nb) void pod_bvector<T, S>::allocate_block(unsigned nb)
@ -606,7 +642,9 @@ void pod_bvector<T, S>::allocate_block(unsigned nb)
if(m_blocks) if(m_blocks)
{ {
memcpy(new_blocks, m_blocks, m_num_blocks * sizeof(T*)); memcpy(new_blocks,
m_blocks,
m_num_blocks * sizeof(T*));
pod_allocator<T*>::deallocate(m_blocks, m_max_blocks); pod_allocator<T*>::deallocate(m_blocks, m_max_blocks);
} }
@ -617,6 +655,8 @@ void pod_bvector<T, S>::allocate_block(unsigned nb)
m_num_blocks++; m_num_blocks++;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
inline T* pod_bvector<T, S>::data_ptr() inline T* pod_bvector<T, S>::data_ptr()
@ -629,6 +669,8 @@ inline T* pod_bvector<T, S>::data_ptr()
return m_blocks[nb] + (m_size & block_mask); return m_blocks[nb] + (m_size & block_mask);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
inline void pod_bvector<T, S>::add(const T& val) inline void pod_bvector<T, S>::add(const T& val)
@ -637,14 +679,15 @@ inline void pod_bvector<T, S>::add(const T& val)
++m_size; ++m_size;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
inline void pod_bvector<T, S>::remove_last() inline void pod_bvector<T, S>::remove_last()
{ {
if (m_size) if(m_size) --m_size;
--m_size;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
void pod_bvector<T, S>::modify_last(const T& val) void pod_bvector<T, S>::modify_last(const T& val)
@ -653,6 +696,7 @@ void pod_bvector<T, S>::modify_last(const T& val)
add(val); add(val);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
int pod_bvector<T, S>::allocate_continuous_block(unsigned num_elements) int pod_bvector<T, S>::allocate_continuous_block(unsigned num_elements)
@ -682,6 +726,7 @@ int pod_bvector<T, S>::allocate_continuous_block(unsigned num_elements)
return -1; // Impossible to allocate return -1; // Impossible to allocate
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
unsigned pod_bvector<T, S>::byte_size() const unsigned pod_bvector<T, S>::byte_size() const
@ -689,6 +734,7 @@ unsigned pod_bvector<T, S>::byte_size() const
return m_size * sizeof(T); return m_size * sizeof(T);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
void pod_bvector<T, S>::serialize(int8u* ptr) const void pod_bvector<T, S>::serialize(int8u* ptr) const
@ -716,10 +762,12 @@ void pod_bvector<T, S>::deserialize(const int8u* _data, unsigned _byte_size)
} }
} }
// Replace or add a number of elements starting from "start" position // Replace or add a number of elements starting from "start" position
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
void pod_bvector<T, S>::deserialize(unsigned start, const T& empty_val, const int8u* _data, unsigned _byte_size) void pod_bvector<T, S>::deserialize(unsigned start, const T& empty_val,
const int8u* _data, unsigned _byte_size)
{ {
while(m_size < start) while(m_size < start)
{ {
@ -743,6 +791,7 @@ void pod_bvector<T, S>::deserialize(unsigned start, const T& empty_val, const in
} }
} }
//---------------------------------------------------------block_allocator //---------------------------------------------------------block_allocator
// Allocator for arbitrary POD data. Most usable in different cache // Allocator for arbitrary POD data. Most usable in different cache
// systems for efficient memory allocations. // systems for efficient memory allocations.
@ -779,28 +828,33 @@ class block_allocator
m_rest = 0; m_rest = 0;
} }
~block_allocator() { remove_all(); } ~block_allocator()
{
remove_all();
}
block_allocator(unsigned block_size, unsigned block_ptr_inc=256-8) :
m_block_size(block_size),
m_block_ptr_inc(block_ptr_inc),
m_num_blocks(0),
m_max_blocks(0),
m_blocks(0),
m_buf_ptr(0),
m_rest(0)
{
}
block_allocator(unsigned block_size, unsigned block_ptr_inc = 256 - 8)
: m_block_size(block_size)
, m_block_ptr_inc(block_ptr_inc)
, m_num_blocks(0)
, m_max_blocks(0)
, m_blocks(0)
, m_buf_ptr(0)
, m_rest(0)
{}
int8u* allocate(unsigned size, unsigned alignment=1) int8u* allocate(unsigned size, unsigned alignment=1)
{ {
if (size == 0) if(size == 0) return 0;
return 0;
if(size <= m_rest) if(size <= m_rest)
{ {
int8u* ptr = m_buf_ptr; int8u* ptr = m_buf_ptr;
if(alignment > 1) if(alignment > 1)
{ {
unsigned align = (alignment - unsigned((size_t)ptr) % alignment) % alignment; unsigned align =
(alignment - unsigned((size_t)ptr) % alignment) % alignment;
size += align; size += align;
ptr += align; ptr += align;
@ -821,18 +875,21 @@ class block_allocator
return allocate(size, alignment); return allocate(size, alignment);
} }
private: private:
void allocate_block(unsigned size) void allocate_block(unsigned size)
{ {
if (size < m_block_size) if(size < m_block_size) size = m_block_size;
size = m_block_size;
if(m_num_blocks >= m_max_blocks) if(m_num_blocks >= m_max_blocks)
{ {
block_type* new_blocks = pod_allocator<block_type>::allocate(m_max_blocks + m_block_ptr_inc); block_type* new_blocks =
pod_allocator<block_type>::allocate(m_max_blocks + m_block_ptr_inc);
if(m_blocks) if(m_blocks)
{ {
memcpy(new_blocks, m_blocks, m_num_blocks * sizeof(block_type)); memcpy(new_blocks,
m_blocks,
m_num_blocks * sizeof(block_type));
pod_allocator<block_type>::deallocate(m_blocks, m_max_blocks); pod_allocator<block_type>::deallocate(m_blocks, m_max_blocks);
} }
m_blocks = new_blocks; m_blocks = new_blocks;
@ -840,7 +897,9 @@ class block_allocator
} }
m_blocks[m_num_blocks].size = size; m_blocks[m_num_blocks].size = size;
m_blocks[m_num_blocks].data = m_buf_ptr = pod_allocator<int8u>::allocate(size); m_blocks[m_num_blocks].data =
m_buf_ptr =
pod_allocator<int8u>::allocate(size);
m_num_blocks++; m_num_blocks++;
m_rest = size; m_rest = size;
@ -855,24 +914,34 @@ class block_allocator
unsigned m_rest; unsigned m_rest;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
enum quick_sort_threshold_e { quick_sort_threshold = 9 }; enum quick_sort_threshold_e
{
quick_sort_threshold = 9
};
//-----------------------------------------------------------swap_elements //-----------------------------------------------------------swap_elements
template<class T> template<class T> inline void swap_elements(T& a, T& b)
inline void swap_elements(T& a, T& b)
{ {
T temp = a; T temp = a;
a = b; a = b;
b = temp; b = temp;
} }
//--------------------------------------------------------------quick_sort //--------------------------------------------------------------quick_sort
template<class Array, class Less> template<class Array, class Less>
void quick_sort(Array& arr, Less less) void quick_sort(Array& arr, Less less)
{ {
if (arr.size() < 2) if(arr.size() < 2) return;
return;
typename Array::value_type* e1; typename Array::value_type* e1;
typename Array::value_type* e2; typename Array::value_type* e2;
@ -902,27 +971,20 @@ void quick_sort(Array& arr, Less less)
// now ensure that *i <= *base <= *j // now ensure that *i <= *base <= *j
e1 = &(arr[j]); e1 = &(arr[j]);
e2 = &(arr[i]); e2 = &(arr[i]);
if (less(*e1, *e2)) if(less(*e1, *e2)) swap_elements(*e1, *e2);
swap_elements(*e1, *e2);
e1 = &(arr[base]); e1 = &(arr[base]);
e2 = &(arr[i]); e2 = &(arr[i]);
if (less(*e1, *e2)) if(less(*e1, *e2)) swap_elements(*e1, *e2);
swap_elements(*e1, *e2);
e1 = &(arr[j]); e1 = &(arr[j]);
e2 = &(arr[base]); e2 = &(arr[base]);
if (less(*e1, *e2)) if(less(*e1, *e2)) swap_elements(*e1, *e2);
swap_elements(*e1, *e2);
for(;;) for(;;)
{ {
do do i++; while( less(arr[i], arr[base]) );
i++; do j--; while( less(arr[base], arr[j]) );
while (less(arr[i], arr[base]));
do
j--;
while (less(arr[base], arr[j]));
if( i > j ) if( i > j )
{ {
@ -980,6 +1042,9 @@ void quick_sort(Array& arr, Less less)
} }
} }
//------------------------------------------------------remove_duplicates //------------------------------------------------------remove_duplicates
// Remove duplicates from a sorted array. It doesn't cut the // Remove duplicates from a sorted array. It doesn't cut the
// tail of the array, it just returns the number of remaining elements. // tail of the array, it just returns the number of remaining elements.
@ -987,8 +1052,7 @@ void quick_sort(Array& arr, Less less)
template<class Array, class Equal> template<class Array, class Equal>
unsigned remove_duplicates(Array& arr, Equal equal) unsigned remove_duplicates(Array& arr, Equal equal)
{ {
if (arr.size() < 2) if(arr.size() < 2) return arr.size();
return arr.size();
unsigned i, j; unsigned i, j;
for(i = 1, j = 1; i < arr.size(); i++) for(i = 1, j = 1; i < arr.size(); i++)
@ -1003,8 +1067,7 @@ unsigned remove_duplicates(Array& arr, Equal equal)
} }
//--------------------------------------------------------invert_container //--------------------------------------------------------invert_container
template<class Array> template<class Array> void invert_container(Array& arr)
void invert_container(Array& arr)
{ {
int i = 0; int i = 0;
int j = arr.size() - 1; int j = arr.size() - 1;
@ -1018,24 +1081,19 @@ void invert_container(Array& arr)
template<class Array, class Value, class Less> template<class Array, class Value, class Less>
unsigned binary_search_pos(const Array& arr, const Value& val, Less less) unsigned binary_search_pos(const Array& arr, const Value& val, Less less)
{ {
if (arr.size() == 0) if(arr.size() == 0) return 0;
return 0;
unsigned beg = 0; unsigned beg = 0;
unsigned end = arr.size() - 1; unsigned end = arr.size() - 1;
if (less(val, arr[0])) if(less(val, arr[0])) return 0;
return 0; if(less(arr[end], val)) return end + 1;
if (less(arr[end], val))
return end + 1;
while(end - beg > 1) while(end - beg > 1)
{ {
unsigned mid = (end + beg) >> 1; unsigned mid = (end + beg) >> 1;
if (less(val, arr[mid])) if(less(val, arr[mid])) end = mid;
end = mid; else beg = mid;
else
beg = mid;
} }
//if(beg <= 0 && less(val, arr[0])) return 0; //if(beg <= 0 && less(val, arr[0])) return 0;
@ -1045,16 +1103,13 @@ unsigned binary_search_pos(const Array& arr, const Value& val, Less less)
} }
//----------------------------------------------------------range_adaptor //----------------------------------------------------------range_adaptor
template<class Array> template<class Array> class range_adaptor
class range_adaptor
{ {
public: public:
typedef typename Array::value_type value_type; typedef typename Array::value_type value_type;
range_adaptor(Array& array, unsigned start, unsigned _size) range_adaptor(Array& array, unsigned start, unsigned _size) :
: m_array(array) m_array(array), m_start(start), m_size(_size)
, m_start(start)
, m_size(_size)
{} {}
unsigned size() const { return m_size; } unsigned size() const { return m_size; }
@ -1071,28 +1126,16 @@ class range_adaptor
}; };
//---------------------------------------------------------------int_less //---------------------------------------------------------------int_less
inline bool int_less(int a, int b) inline bool int_less(int a, int b) { return a < b; }
{
return a < b;
}
//------------------------------------------------------------int_greater //------------------------------------------------------------int_greater
inline bool int_greater(int a, int b) inline bool int_greater(int a, int b) { return a > b; }
{
return a > b;
}
//----------------------------------------------------------unsigned_less //----------------------------------------------------------unsigned_less
inline bool unsigned_less(unsigned a, unsigned b) inline bool unsigned_less(unsigned a, unsigned b) { return a < b; }
{
return a < b;
}
//-------------------------------------------------------unsigned_greater //-------------------------------------------------------unsigned_greater
inline bool unsigned_greater(unsigned a, unsigned b) inline bool unsigned_greater(unsigned a, unsigned b) { return a > b; }
{
return a > b;
} }
} // namespace agg
#endif #endif

View file

@ -21,7 +21,8 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//===============================================================arrowhead //===============================================================arrowhead
// //
@ -76,6 +77,6 @@ class arrowhead
unsigned m_curr_coord; unsigned m_curr_coord;
}; };
} // namespace agg }
#endif #endif

View file

@ -23,7 +23,8 @@
#ifdef AGG_CUSTOM_ALLOCATOR #ifdef AGG_CUSTOM_ALLOCATOR
#include "agg_allocator.h" #include "agg_allocator.h"
#else #else
namespace agg { namespace agg
{
// The policy of all AGG containers and memory allocation strategy // The policy of all AGG containers and memory allocation strategy
// in general is that no allocated data requires explicit construction. // in general is that no allocated data requires explicit construction.
// It means that the allocator can be really simple; you can even // It means that the allocator can be really simple; you can even
@ -32,8 +33,7 @@ namespace agg {
// The second argument of deallocate() is the size of the allocated // The second argument of deallocate() is the size of the allocated
// block. You can use this information if you wish. // block. You can use this information if you wish.
//------------------------------------------------------------pod_allocator //------------------------------------------------------------pod_allocator
template<class T> template<class T> struct pod_allocator
struct pod_allocator
{ {
//static T* allocate(unsigned num) { return static_cast<T*>(::operator new(sizeof(T)*num));} //static T* allocate(unsigned num) { return static_cast<T*>(::operator new(sizeof(T)*num));}
//static void deallocate(T* ptr, unsigned) { ::operator delete(ptr) ;} //static void deallocate(T* ptr, unsigned) { ::operator delete(ptr) ;}
@ -49,15 +49,15 @@ struct pod_allocator
// replace these new/delete to malloc/free make sure that the in-place // replace these new/delete to malloc/free make sure that the in-place
// new is called and take care of calling the destructor too. // new is called and take care of calling the destructor too.
//------------------------------------------------------------obj_allocator //------------------------------------------------------------obj_allocator
template<class T> template<class T> struct obj_allocator
struct obj_allocator
{ {
static T* allocate() { return new T; } static T* allocate() { return new T; }
static void deallocate(T* ptr) { delete ptr; } static void deallocate(T* ptr) { delete ptr; }
}; };
} // namespace agg }
#endif #endif
//-------------------------------------------------------- Default basic types //-------------------------------------------------------- Default basic types
// //
// If the compiler has different capacity of the basic types you can redefine // If the compiler has different capacity of the basic types you can redefine
@ -107,7 +107,8 @@ struct obj_allocator
#define AGG_INLINE inline #define AGG_INLINE inline
#endif #endif
namespace agg { namespace agg
{
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
typedef AGG_INT8 int8; //----int8 typedef AGG_INT8 int8; //----int8
typedef AGG_INT8U int8u; //----int8u typedef AGG_INT8U int8u; //----int8u
@ -136,22 +137,18 @@ AGG_INLINE unsigned uceil(double v)
} }
//---------------------------------------------------------------saturation //---------------------------------------------------------------saturation
template<int Limit> template<int Limit> struct saturation
struct saturation
{ {
AGG_INLINE static int iround(double v) AGG_INLINE static int iround(double v)
{ {
if (v < double(-Limit)) if(v < double(-Limit)) return -Limit;
return -Limit; if(v > double( Limit)) return Limit;
if (v > double(Limit))
return Limit;
return agg::iround(v); return agg::iround(v);
} }
}; };
//------------------------------------------------------------------mul_one //------------------------------------------------------------------mul_one
template<unsigned Shift> template<unsigned Shift> struct mul_one
struct mul_one
{ {
AGG_INLINE static unsigned mul(unsigned a, unsigned b) AGG_INLINE static unsigned mul(unsigned a, unsigned b)
{ {
@ -162,7 +159,8 @@ struct mul_one
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
typedef unsigned char cover_type; //----cover_type typedef unsigned char cover_type; //----cover_type
enum cover_scale_e { enum cover_scale_e
{
cover_shift = 8, //----cover_shift cover_shift = 8, //----cover_shift
cover_size = 1 << cover_shift, //----cover_size cover_size = 1 << cover_shift, //----cover_size
cover_mask = cover_size - 1, //----cover_mask cover_mask = cover_size - 1, //----cover_mask
@ -176,14 +174,19 @@ enum cover_scale_e {
// The possible coordinate capacity in bits can be calculated by formula: // The possible coordinate capacity in bits can be calculated by formula:
// sizeof(int) * 8 - poly_subpixel_shift, i.e, for 32-bit integers and // sizeof(int) * 8 - poly_subpixel_shift, i.e, for 32-bit integers and
// 8-bits fractional part the capacity is 24 bits. // 8-bits fractional part the capacity is 24 bits.
enum poly_subpixel_scale_e { enum poly_subpixel_scale_e
{
poly_subpixel_shift = 8, //----poly_subpixel_shift poly_subpixel_shift = 8, //----poly_subpixel_shift
poly_subpixel_scale = 1<<poly_subpixel_shift, //----poly_subpixel_scale poly_subpixel_scale = 1<<poly_subpixel_shift, //----poly_subpixel_scale
poly_subpixel_mask = poly_subpixel_scale-1 //----poly_subpixel_mask poly_subpixel_mask = poly_subpixel_scale-1 //----poly_subpixel_mask
}; };
//----------------------------------------------------------filling_rule_e //----------------------------------------------------------filling_rule_e
enum filling_rule_e { fill_non_zero, fill_even_odd }; enum filling_rule_e
{
fill_non_zero,
fill_even_odd
};
//-----------------------------------------------------------------------pi //-----------------------------------------------------------------------pi
const double pi = 3.14159265358979323846; const double pi = 3.14159265358979323846;
@ -201,63 +204,47 @@ inline double rad2deg(double rad)
} }
//----------------------------------------------------------------rect_base //----------------------------------------------------------------rect_base
template<class T> template<class T> struct rect_base
struct rect_base
{ {
typedef T value_type; typedef T value_type;
typedef rect_base<T> self_type; typedef rect_base<T> self_type;
T x1, y1, x2, y2; T x1, y1, x2, y2;
rect_base() {} rect_base() {}
rect_base(T x1_, T y1_, T x2_, T y2_) rect_base(T x1_, T y1_, T x2_, T y2_) :
: x1(x1_) x1(x1_), y1(y1_), x2(x2_), y2(y2_) {}
, y1(y1_)
, x2(x2_)
, y2(y2_)
{}
void init(T x1_, T y1_, T x2_, T y2_) void init(T x1_, T y1_, T x2_, T y2_)
{ {
x1 = x1_; x1 = x1_; y1 = y1_; x2 = x2_; y2 = y2_;
y1 = y1_;
x2 = x2_;
y2 = y2_;
} }
const self_type& normalize() const self_type& normalize()
{ {
T t; T t;
if (x1 > x2) if(x1 > x2) { t = x1; x1 = x2; x2 = t; }
{ if(y1 > y2) { t = y1; y1 = y2; y2 = t; }
t = x1;
x1 = x2;
x2 = t;
}
if (y1 > y2)
{
t = y1;
y1 = y2;
y2 = t;
}
return *this; return *this;
} }
bool clip(const self_type& r) bool clip(const self_type& r)
{ {
if (x2 > r.x2) if(x2 > r.x2) x2 = r.x2;
x2 = r.x2; if(y2 > r.y2) y2 = r.y2;
if (y2 > r.y2) if(x1 < r.x1) x1 = r.x1;
y2 = r.y2; if(y1 < r.y1) y1 = r.y1;
if (x1 < r.x1)
x1 = r.x1;
if (y1 < r.y1)
y1 = r.y1;
return x1 <= x2 && y1 <= y2; return x1 <= x2 && y1 <= y2;
} }
bool is_valid() const { return x1 <= x2 && y1 <= y2; } bool is_valid() const
{
return x1 <= x2 && y1 <= y2;
}
bool hit_test(T x, T y) const { return (x >= x1 && x <= x2 && y >= y1 && y <= y2); } bool hit_test(T x, T y) const
{
return (x >= x1 && x <= x2 && y >= y1 && y <= y2);
}
}; };
//-----------------------------------------------------intersect_rectangles //-----------------------------------------------------intersect_rectangles
@ -271,30 +258,23 @@ inline Rect intersect_rectangles(const Rect& r1, const Rect& r2)
// Microsoft Visual C++ .NET 2003 69462-335-0000007-18038 in // Microsoft Visual C++ .NET 2003 69462-335-0000007-18038 in
// case of "Maximize Speed" optimization option. // case of "Maximize Speed" optimization option.
//----------------- //-----------------
if (r.x2 > r2.x2) if(r.x2 > r2.x2) r.x2 = r2.x2;
r.x2 = r2.x2; if(r.y2 > r2.y2) r.y2 = r2.y2;
if (r.y2 > r2.y2) if(r.x1 < r2.x1) r.x1 = r2.x1;
r.y2 = r2.y2; if(r.y1 < r2.y1) r.y1 = r2.y1;
if (r.x1 < r2.x1)
r.x1 = r2.x1;
if (r.y1 < r2.y1)
r.y1 = r2.y1;
return r; return r;
} }
//---------------------------------------------------------unite_rectangles //---------------------------------------------------------unite_rectangles
template<class Rect> template<class Rect>
inline Rect unite_rectangles(const Rect& r1, const Rect& r2) inline Rect unite_rectangles(const Rect& r1, const Rect& r2)
{ {
Rect r = r1; Rect r = r1;
if (r.x2 < r2.x2) if(r.x2 < r2.x2) r.x2 = r2.x2;
r.x2 = r2.x2; if(r.y2 < r2.y2) r.y2 = r2.y2;
if (r.y2 < r2.y2) if(r.x1 > r2.x1) r.x1 = r2.x1;
r.y2 = r2.y2; if(r.y1 > r2.y1) r.y1 = r2.y1;
if (r.x1 > r2.x1)
r.x1 = r2.x1;
if (r.y1 > r2.y1)
r.y1 = r2.y1;
return r; return r;
} }
@ -303,7 +283,8 @@ typedef rect_base<float> rect_f; //----rect_f
typedef rect_base<double> rect_d; //----rect_d typedef rect_base<double> rect_d; //----rect_d
//---------------------------------------------------------path_commands_e //---------------------------------------------------------path_commands_e
enum path_commands_e { enum path_commands_e
{
path_cmd_stop = 0, //----path_cmd_stop path_cmd_stop = 0, //----path_cmd_stop
path_cmd_move_to = 1, //----path_cmd_move_to path_cmd_move_to = 1, //----path_cmd_move_to
path_cmd_line_to = 2, //----path_cmd_line_to path_cmd_line_to = 2, //----path_cmd_line_to
@ -317,7 +298,8 @@ enum path_commands_e {
}; };
//------------------------------------------------------------path_flags_e //------------------------------------------------------------path_flags_e
enum path_flags_e { enum path_flags_e
{
path_flags_none = 0, //----path_flags_none path_flags_none = 0, //----path_flags_none
path_flags_ccw = 0x10, //----path_flags_ccw path_flags_ccw = 0x10, //----path_flags_ccw
path_flags_cw = 0x20, //----path_flags_cw path_flags_cw = 0x20, //----path_flags_cw
@ -441,74 +423,56 @@ inline unsigned set_orientation(unsigned c, unsigned o)
} }
//--------------------------------------------------------------point_base //--------------------------------------------------------------point_base
template<class T> template<class T> struct point_base
struct point_base
{ {
typedef T value_type; typedef T value_type;
T x,y; T x,y;
point_base() {} point_base() {}
point_base(T x_, T y_) point_base(T x_, T y_) : x(x_), y(y_) {}
: x(x_)
, y(y_)
{}
}; };
typedef point_base<int> point_i; //-----point_i typedef point_base<int> point_i; //-----point_i
typedef point_base<float> point_f; //-----point_f typedef point_base<float> point_f; //-----point_f
typedef point_base<double> point_d; //-----point_d typedef point_base<double> point_d; //-----point_d
//-------------------------------------------------------------vertex_base //-------------------------------------------------------------vertex_base
template<class T> template<class T> struct vertex_base
struct vertex_base
{ {
typedef T value_type; typedef T value_type;
T x,y; T x,y;
unsigned cmd; unsigned cmd;
vertex_base() {} vertex_base() {}
vertex_base(T x_, T y_, unsigned cmd_) vertex_base(T x_, T y_, unsigned cmd_) : x(x_), y(y_), cmd(cmd_) {}
: x(x_)
, y(y_)
, cmd(cmd_)
{}
}; };
typedef vertex_base<int> vertex_i; //-----vertex_i typedef vertex_base<int> vertex_i; //-----vertex_i
typedef vertex_base<float> vertex_f; //-----vertex_f typedef vertex_base<float> vertex_f; //-----vertex_f
typedef vertex_base<double> vertex_d; //-----vertex_d typedef vertex_base<double> vertex_d; //-----vertex_d
//----------------------------------------------------------------row_info //----------------------------------------------------------------row_info
template<class T> template<class T> struct row_info
struct row_info
{ {
int x1, x2; int x1, x2;
T* ptr; T* ptr;
row_info() {} row_info() {}
row_info(int x1_, int x2_, T* ptr_) row_info(int x1_, int x2_, T* ptr_) : x1(x1_), x2(x2_), ptr(ptr_) {}
: x1(x1_)
, x2(x2_)
, ptr(ptr_)
{}
}; };
//----------------------------------------------------------const_row_info //----------------------------------------------------------const_row_info
template<class T> template<class T> struct const_row_info
struct const_row_info
{ {
int x1, x2; int x1, x2;
const T* ptr; const T* ptr;
const_row_info() {} const_row_info() {}
const_row_info(int x1_, int x2_, const T* ptr_) const_row_info(int x1_, int x2_, const T* ptr_) :
: x1(x1_) x1(x1_), x2(x2_), ptr(ptr_) {}
, x2(x2_)
, ptr(ptr_)
{}
}; };
//------------------------------------------------------------is_equal_eps //------------------------------------------------------------is_equal_eps
template<class T> template<class T> inline bool is_equal_eps(T v1, T v2, T epsilon)
inline bool is_equal_eps(T v1, T v2, T epsilon)
{ {
return std::fabs(v1 - v2) <= double(epsilon); return std::fabs(v1 - v2) <= double(epsilon);
} }
} // namespace agg }
#endif #endif

View file

@ -23,10 +23,14 @@
#include "agg_conv_transform.h" #include "agg_conv_transform.h"
namespace agg { namespace agg
{
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
void arc_to_bezier(double cx, double cy, double rx, double ry, double start_angle, double sweep_angle, double* curve); void arc_to_bezier(double cx, double cy, double rx, double ry,
double start_angle, double sweep_angle,
double* curve);
//==============================================================bezier_arc //==============================================================bezier_arc
// //
@ -36,27 +40,31 @@ class bezier_arc
{ {
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
bezier_arc() bezier_arc() : m_vertex(26), m_num_vertices(0), m_cmd(path_cmd_line_to) {}
: m_vertex(26) bezier_arc(double x, double y,
, m_num_vertices(0) double rx, double ry,
, m_cmd(path_cmd_line_to) double start_angle,
{} double sweep_angle)
bezier_arc(double x, double y, double rx, double ry, double start_angle, double sweep_angle)
{ {
init(x, y, rx, ry, start_angle, sweep_angle); init(x, y, rx, ry, start_angle, sweep_angle);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void init(double x, double y, double rx, double ry, double start_angle, double sweep_angle); void init(double x, double y,
double rx, double ry,
double start_angle,
double sweep_angle);
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void rewind(unsigned) { m_vertex = 0; } void rewind(unsigned)
{
m_vertex = 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
unsigned vertex(double* x, double* y) unsigned vertex(double* x, double* y)
{ {
if (m_vertex >= m_num_vertices) if(m_vertex >= m_num_vertices) return path_cmd_stop;
return path_cmd_stop;
*x = m_vertices[m_vertex]; *x = m_vertices[m_vertex];
*y = m_vertices[m_vertex + 1]; *y = m_vertices[m_vertex + 1];
m_vertex += 2; m_vertex += 2;
@ -77,6 +85,8 @@ class bezier_arc
unsigned m_cmd; unsigned m_cmd;
}; };
//==========================================================bezier_arc_svg //==========================================================bezier_arc_svg
// Compute an SVG-style bezier arc. // Compute an SVG-style bezier arc.
// //
@ -92,45 +102,41 @@ class bezier_arc_svg
{ {
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
bezier_arc_svg() bezier_arc_svg() : m_arc(), m_radii_ok(false) {}
: m_arc()
, m_radii_ok(false)
{}
bezier_arc_svg(double x1, bezier_arc_svg(double x1, double y1,
double y1, double rx, double ry,
double rx,
double ry,
double angle, double angle,
bool large_arc_flag, bool large_arc_flag,
bool sweep_flag, bool sweep_flag,
double x2, double x2, double y2) :
double y2) m_arc(), m_radii_ok(false)
: m_arc()
, m_radii_ok(false)
{ {
init(x1, y1, rx, ry, angle, large_arc_flag, sweep_flag, x2, y2); init(x1, y1, rx, ry, angle, large_arc_flag, sweep_flag, x2, y2);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void init(double x1, void init(double x1, double y1,
double y1, double rx, double ry,
double rx,
double ry,
double angle, double angle,
bool large_arc_flag, bool large_arc_flag,
bool sweep_flag, bool sweep_flag,
double x2, double x2, double y2);
double y2);
//-------------------------------------------------------------------- //--------------------------------------------------------------------
bool radii_ok() const { return m_radii_ok; } bool radii_ok() const { return m_radii_ok; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void rewind(unsigned) { m_arc.rewind(0); } void rewind(unsigned)
{
m_arc.rewind(0);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
unsigned vertex(double* x, double* y) { return m_arc.vertex(x, y); } unsigned vertex(double* x, double* y)
{
return m_arc.vertex(x, y);
}
// Supplemantary functions. num_vertices() actually returns doubled // Supplemantary functions. num_vertices() actually returns doubled
// number of vertices. That is, for 1 vertex it returns 2. // number of vertices. That is, for 1 vertex it returns 2.
@ -144,6 +150,10 @@ class bezier_arc_svg
bool m_radii_ok; bool m_radii_ok;
}; };
} // namespace agg
}
#endif #endif

View file

@ -18,14 +18,15 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
class bitset_iterator class bitset_iterator
{ {
public: public:
bitset_iterator(const int8u* bits, unsigned offset = 0) bitset_iterator(const int8u* bits, unsigned offset = 0) :
: m_bits(bits + (offset >> 3)) m_bits(bits + (offset >> 3)),
, m_mask(0x80 >> (offset & 7)) m_mask(0x80 >> (offset & 7))
{} {}
void operator ++ () void operator ++ ()
@ -38,13 +39,16 @@ class bitset_iterator
} }
} }
unsigned bit() const { return (*m_bits) & m_mask; } unsigned bit() const
{
return (*m_bits) & m_mask;
}
private: private:
const int8u* m_bits; const int8u* m_bits;
int8u m_mask; int8u m_mask;
}; };
} // namespace agg }
#endif #endif

View file

@ -30,10 +30,10 @@
#include "agg_array.h" #include "agg_array.h"
#include "agg_pixfmt_transposer.h" #include "agg_pixfmt_transposer.h"
namespace agg { namespace agg
{
template<class T> template<class T> struct stack_blur_tables
struct stack_blur_tables
{ {
static int16u const g_stack_blur8_mul[255]; static int16u const g_stack_blur8_mul[255];
static int8u const g_stack_blur8_shr[255]; static int8u const g_stack_blur8_shr[255];
@ -41,47 +41,61 @@ struct stack_blur_tables
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T>
int16u const stack_blur_tables<T>::g_stack_blur8_mul[255] = { int16u const stack_blur_tables<T>::g_stack_blur8_mul[255] =
512, 512, 456, 512, 328, 456, 335, 512, 405, 328, 271, 456, 388, 335, 292, 512, 454, 405, 364, 328, 298, 271, {
496, 456, 420, 388, 360, 335, 312, 292, 273, 512, 482, 454, 428, 405, 383, 364, 345, 328, 312, 298, 284, 271, 512,512,456,512,328,456,335,512,405,328,271,456,388,335,292,512,
259, 496, 475, 456, 437, 420, 404, 388, 374, 360, 347, 335, 323, 312, 302, 292, 282, 273, 265, 512, 497, 482, 454,405,364,328,298,271,496,456,420,388,360,335,312,292,273,512,
468, 454, 441, 428, 417, 405, 394, 383, 373, 364, 354, 345, 337, 328, 320, 312, 305, 298, 291, 284, 278, 271, 482,454,428,405,383,364,345,328,312,298,284,271,259,496,475,456,
265, 259, 507, 496, 485, 475, 465, 456, 446, 437, 428, 420, 412, 404, 396, 388, 381, 374, 367, 360, 354, 347, 437,420,404,388,374,360,347,335,323,312,302,292,282,273,265,512,
341, 335, 329, 323, 318, 312, 307, 302, 297, 292, 287, 282, 278, 273, 269, 265, 261, 512, 505, 497, 489, 482, 497,482,468,454,441,428,417,405,394,383,373,364,354,345,337,328,
475, 468, 461, 454, 447, 441, 435, 428, 422, 417, 411, 405, 399, 394, 389, 383, 378, 373, 368, 364, 359, 354, 320,312,305,298,291,284,278,271,265,259,507,496,485,475,465,456,
350, 345, 341, 337, 332, 328, 324, 320, 316, 312, 309, 305, 301, 298, 294, 291, 287, 284, 281, 278, 274, 271, 446,437,428,420,412,404,396,388,381,374,367,360,354,347,341,335,
268, 265, 262, 259, 257, 507, 501, 496, 491, 485, 480, 475, 470, 465, 460, 456, 451, 446, 442, 437, 433, 428, 329,323,318,312,307,302,297,292,287,282,278,273,269,265,261,512,
424, 420, 416, 412, 408, 404, 400, 396, 392, 388, 385, 381, 377, 374, 370, 367, 363, 360, 357, 354, 350, 347, 505,497,489,482,475,468,461,454,447,441,435,428,422,417,411,405,
344, 341, 338, 335, 332, 329, 326, 323, 320, 318, 315, 312, 310, 307, 304, 302, 299, 297, 294, 292, 289, 287, 399,394,389,383,378,373,368,364,359,354,350,345,341,337,332,328,
285, 282, 280, 278, 275, 273, 271, 269, 267, 265, 263, 261, 259}; 324,320,316,312,309,305,301,298,294,291,287,284,281,278,274,271,
268,265,262,259,257,507,501,496,491,485,480,475,470,465,460,456,
451,446,442,437,433,428,424,420,416,412,408,404,400,396,392,388,
385,381,377,374,370,367,363,360,357,354,350,347,344,341,338,335,
332,329,326,323,320,318,315,312,310,307,304,302,299,297,294,292,
289,287,285,282,280,278,275,273,271,269,267,265,263,261,259
};
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template<class T>
int8u const stack_blur_tables<T>::g_stack_blur8_shr[255] = { int8u const stack_blur_tables<T>::g_stack_blur8_shr[255] =
9, 11, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, {
18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 9, 11, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17,
20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 19,
21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20,
22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21,
23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24}; 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23,
23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24
};
//==============================================================stack_blur //==============================================================stack_blur
template<class ColorT, class CalculatorT> template<class ColorT, class CalculatorT> class stack_blur
class stack_blur
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
typedef CalculatorT calculator_type; typedef CalculatorT calculator_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Img> template<class Img> void blur_x(Img& img, unsigned radius)
void blur_x(Img& img, unsigned radius)
{ {
if (radius < 1) if(radius < 1) return;
return;
unsigned x, y, xp, i; unsigned x, y, xp, i;
unsigned stack_ptr; unsigned stack_ptr;
@ -136,23 +150,19 @@ class stack_blur
stack_ptr = radius; stack_ptr = radius;
for(x = 0; x < w; x++) for(x = 0; x < w; x++)
{ {
if (mul_sum) if(mul_sum) sum.calc_pix(m_buf[x], mul_sum, shr_sum);
sum.calc_pix(m_buf[x], mul_sum, shr_sum); else sum.calc_pix(m_buf[x], div_sum);
else
sum.calc_pix(m_buf[x], div_sum);
sum.sub(sum_out); sum.sub(sum_out);
stack_start = stack_ptr + div - radius; stack_start = stack_ptr + div - radius;
if (stack_start >= div) if(stack_start >= div) stack_start -= div;
stack_start -= div;
stack_pix = &m_stack[stack_start]; stack_pix = &m_stack[stack_start];
sum_out.sub(*stack_pix); sum_out.sub(*stack_pix);
xp = x + radius + 1; xp = x + radius + 1;
if (xp > wm) if(xp > wm) xp = wm;
xp = wm;
pix = img.pixel(xp, y); pix = img.pixel(xp, y);
*stack_pix = pix; *stack_pix = pix;
@ -161,8 +171,7 @@ class stack_blur
sum.add(sum_in); sum.add(sum_in);
++stack_ptr; ++stack_ptr;
if (stack_ptr >= div) if(stack_ptr >= div) stack_ptr = 0;
stack_ptr = 0;
stack_pix = &m_stack[stack_ptr]; stack_pix = &m_stack[stack_ptr];
sum_out.add(*stack_pix); sum_out.add(*stack_pix);
@ -173,16 +182,14 @@ class stack_blur
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Img> template<class Img> void blur_y(Img& img, unsigned radius)
void blur_y(Img& img, unsigned radius)
{ {
pixfmt_transposer<Img> img2(img); pixfmt_transposer<Img> img2(img);
blur_x(img2, radius); blur_x(img2, radius);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Img> template<class Img> void blur(Img& img, unsigned radius)
void blur(Img& img, unsigned radius)
{ {
blur_x(img, radius); blur_x(img, radius);
pixfmt_transposer<Img> img2(img); pixfmt_transposer<Img> img2(img);
@ -195,16 +202,17 @@ class stack_blur
}; };
//====================================================stack_blur_calc_rgba //====================================================stack_blur_calc_rgba
template<class T = unsigned> template<class T=unsigned> struct stack_blur_calc_rgba
struct stack_blur_calc_rgba
{ {
typedef T value_type; typedef T value_type;
value_type r,g,b,a; value_type r,g,b,a;
AGG_INLINE void clear() { r = g = b = a = 0; } AGG_INLINE void clear()
{
r = g = b = a = 0;
}
template<class ArgT> template<class ArgT> AGG_INLINE void add(const ArgT& v)
AGG_INLINE void add(const ArgT& v)
{ {
r += v.r; r += v.r;
g += v.g; g += v.g;
@ -212,8 +220,7 @@ struct stack_blur_calc_rgba
a += v.a; a += v.a;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void add(const ArgT& v, unsigned k)
AGG_INLINE void add(const ArgT& v, unsigned k)
{ {
r += v.r * k; r += v.r * k;
g += v.g * k; g += v.g * k;
@ -221,8 +228,7 @@ struct stack_blur_calc_rgba
a += v.a * k; a += v.a * k;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void sub(const ArgT& v)
AGG_INLINE void sub(const ArgT& v)
{ {
r -= v.r; r -= v.r;
g -= v.g; g -= v.g;
@ -230,8 +236,7 @@ struct stack_blur_calc_rgba
a -= v.a; a -= v.a;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void calc_pix(ArgT& v, unsigned div)
AGG_INLINE void calc_pix(ArgT& v, unsigned div)
{ {
typedef typename ArgT::value_type value_type; typedef typename ArgT::value_type value_type;
v.r = value_type(r / div); v.r = value_type(r / div);
@ -251,41 +256,40 @@ struct stack_blur_calc_rgba
} }
}; };
//=====================================================stack_blur_calc_rgb //=====================================================stack_blur_calc_rgb
template<class T = unsigned> template<class T=unsigned> struct stack_blur_calc_rgb
struct stack_blur_calc_rgb
{ {
typedef T value_type; typedef T value_type;
value_type r,g,b; value_type r,g,b;
AGG_INLINE void clear() { r = g = b = 0; } AGG_INLINE void clear()
{
r = g = b = 0;
}
template<class ArgT> template<class ArgT> AGG_INLINE void add(const ArgT& v)
AGG_INLINE void add(const ArgT& v)
{ {
r += v.r; r += v.r;
g += v.g; g += v.g;
b += v.b; b += v.b;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void add(const ArgT& v, unsigned k)
AGG_INLINE void add(const ArgT& v, unsigned k)
{ {
r += v.r * k; r += v.r * k;
g += v.g * k; g += v.g * k;
b += v.b * k; b += v.b * k;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void sub(const ArgT& v)
AGG_INLINE void sub(const ArgT& v)
{ {
r -= v.r; r -= v.r;
g -= v.g; g -= v.g;
b -= v.b; b -= v.b;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void calc_pix(ArgT& v, unsigned div)
AGG_INLINE void calc_pix(ArgT& v, unsigned div)
{ {
typedef typename ArgT::value_type value_type; typedef typename ArgT::value_type value_type;
v.r = value_type(r / div); v.r = value_type(r / div);
@ -303,35 +307,34 @@ struct stack_blur_calc_rgb
} }
}; };
//====================================================stack_blur_calc_gray //====================================================stack_blur_calc_gray
template<class T = unsigned> template<class T=unsigned> struct stack_blur_calc_gray
struct stack_blur_calc_gray
{ {
typedef T value_type; typedef T value_type;
value_type v; value_type v;
AGG_INLINE void clear() { v = 0; } AGG_INLINE void clear()
{
v = 0;
}
template<class ArgT> template<class ArgT> AGG_INLINE void add(const ArgT& a)
AGG_INLINE void add(const ArgT& a)
{ {
v += a.v; v += a.v;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void add(const ArgT& a, unsigned k)
AGG_INLINE void add(const ArgT& a, unsigned k)
{ {
v += a.v * k; v += a.v * k;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void sub(const ArgT& a)
AGG_INLINE void sub(const ArgT& a)
{ {
v -= a.v; v -= a.v;
} }
template<class ArgT> template<class ArgT> AGG_INLINE void calc_pix(ArgT& a, unsigned div)
AGG_INLINE void calc_pix(ArgT& a, unsigned div)
{ {
typedef typename ArgT::value_type value_type; typedef typename ArgT::value_type value_type;
a.v = value_type(v / div); a.v = value_type(v / div);
@ -345,6 +348,8 @@ struct stack_blur_calc_gray
} }
}; };
//========================================================stack_blur_gray8 //========================================================stack_blur_gray8
template<class Img> template<class Img>
void stack_blur_gray8(Img& img, unsigned rx, unsigned ry) void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
@ -374,8 +379,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
if(rx > 0) if(rx > 0)
{ {
if (rx > 254) if(rx > 254) rx = 254;
rx = 254;
div = rx * 2 + 1; div = rx * 2 + 1;
mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[rx]; mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[rx];
shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[rx]; shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[rx];
@ -395,8 +399,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
} }
for(i = 1; i <= rx; i++) for(i = 1; i <= rx; i++)
{ {
if (i <= wm) if(i <= wm) src_pix_ptr += Img::pix_step;
src_pix_ptr += Img::pix_step;
pix = *src_pix_ptr; pix = *src_pix_ptr;
stack[i + rx] = pix; stack[i + rx] = pix;
sum += pix * (rx + 1 - i); sum += pix * (rx + 1 - i);
@ -405,8 +408,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
stack_ptr = rx; stack_ptr = rx;
xp = rx; xp = rx;
if (xp > wm) if(xp > wm) xp = wm;
xp = wm;
src_pix_ptr = img.pix_ptr(xp, y); src_pix_ptr = img.pix_ptr(xp, y);
dst_pix_ptr = img.pix_ptr(0, y); dst_pix_ptr = img.pix_ptr(0, y);
for(x = 0; x < w; x++) for(x = 0; x < w; x++)
@ -417,8 +419,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
sum -= sum_out; sum -= sum_out;
stack_start = stack_ptr + div - rx; stack_start = stack_ptr + div - rx;
if (stack_start >= div) if(stack_start >= div) stack_start -= div;
stack_start -= div;
sum_out -= stack[stack_start]; sum_out -= stack[stack_start];
if(xp < wm) if(xp < wm)
@ -434,8 +435,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
sum += sum_in; sum += sum_in;
++stack_ptr; ++stack_ptr;
if (stack_ptr >= div) if(stack_ptr >= div) stack_ptr = 0;
stack_ptr = 0;
stack_pix = stack[stack_ptr]; stack_pix = stack[stack_ptr];
sum_out += stack_pix; sum_out += stack_pix;
@ -446,8 +446,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
if(ry > 0) if(ry > 0)
{ {
if (ry > 254) if(ry > 254) ry = 254;
ry = 254;
div = ry * 2 + 1; div = ry * 2 + 1;
mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[ry]; mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[ry];
shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[ry]; shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[ry];
@ -468,8 +467,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
} }
for(i = 1; i <= ry; i++) for(i = 1; i <= ry; i++)
{ {
if (i <= hm) if(i <= hm) src_pix_ptr += stride;
src_pix_ptr += stride;
pix = *src_pix_ptr; pix = *src_pix_ptr;
stack[i + ry] = pix; stack[i + ry] = pix;
sum += pix * (ry + 1 - i); sum += pix * (ry + 1 - i);
@ -478,8 +476,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
stack_ptr = ry; stack_ptr = ry;
yp = ry; yp = ry;
if (yp > hm) if(yp > hm) yp = hm;
yp = hm;
src_pix_ptr = img.pix_ptr(x, yp); src_pix_ptr = img.pix_ptr(x, yp);
dst_pix_ptr = img.pix_ptr(x, 0); dst_pix_ptr = img.pix_ptr(x, 0);
for(y = 0; y < h; y++) for(y = 0; y < h; y++)
@ -490,8 +487,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
sum -= sum_out; sum -= sum_out;
stack_start = stack_ptr + div - ry; stack_start = stack_ptr + div - ry;
if (stack_start >= div) if(stack_start >= div) stack_start -= div;
stack_start -= div;
sum_out -= stack[stack_start]; sum_out -= stack[stack_start];
if(yp < hm) if(yp < hm)
@ -507,8 +503,7 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
sum += sum_in; sum += sum_in;
++stack_ptr; ++stack_ptr;
if (stack_ptr >= div) if(stack_ptr >= div) stack_ptr = 0;
stack_ptr = 0;
stack_pix = stack[stack_ptr]; stack_pix = stack[stack_ptr];
sum_out += stack_pix; sum_out += stack_pix;
@ -518,13 +513,20 @@ void stack_blur_gray8(Img& img, unsigned rx, unsigned ry)
} }
} }
//========================================================stack_blur_rgb24 //========================================================stack_blur_rgb24
template<class Img> template<class Img>
void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry) void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
{ {
typedef typename Img::color_type color_type; typedef typename Img::color_type color_type;
typedef typename Img::order_type order_type; typedef typename Img::order_type order_type;
enum order_e { R = order_type::R, G = order_type::G, B = order_type::B }; enum order_e
{
R = order_type::R,
G = order_type::G,
B = order_type::B
};
unsigned x, y, xp, yp, i; unsigned x, y, xp, yp, i;
unsigned stack_ptr; unsigned stack_ptr;
@ -557,8 +559,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
if(rx > 0) if(rx > 0)
{ {
if (rx > 254) if(rx > 254) rx = 254;
rx = 254;
div = rx * 2 + 1; div = rx * 2 + 1;
mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[rx]; mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[rx];
shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[rx]; shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[rx];
@ -566,7 +567,15 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
for(y = 0; y < h; y++) for(y = 0; y < h; y++)
{ {
sum_r = sum_g = sum_b = sum_in_r = sum_in_g = sum_in_b = sum_out_r = sum_out_g = sum_out_b = 0; sum_r =
sum_g =
sum_b =
sum_in_r =
sum_in_g =
sum_in_b =
sum_out_r =
sum_out_g =
sum_out_b = 0;
src_pix_ptr = img.pix_ptr(0, y); src_pix_ptr = img.pix_ptr(0, y);
for(i = 0; i <= rx; i++) for(i = 0; i <= rx; i++)
@ -584,8 +593,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
} }
for(i = 1; i <= rx; i++) for(i = 1; i <= rx; i++)
{ {
if (i <= wm) if(i <= wm) src_pix_ptr += Img::pix_width;
src_pix_ptr += Img::pix_width;
stack_pix_ptr = &stack[i + rx]; stack_pix_ptr = &stack[i + rx];
stack_pix_ptr->r = src_pix_ptr[R]; stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G]; stack_pix_ptr->g = src_pix_ptr[G];
@ -600,8 +608,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
stack_ptr = rx; stack_ptr = rx;
xp = rx; xp = rx;
if (xp > wm) if(xp > wm) xp = wm;
xp = wm;
src_pix_ptr = img.pix_ptr(xp, y); src_pix_ptr = img.pix_ptr(xp, y);
dst_pix_ptr = img.pix_ptr(0, y); dst_pix_ptr = img.pix_ptr(0, y);
for(x = 0; x < w; x++) for(x = 0; x < w; x++)
@ -616,8 +623,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
sum_b -= sum_out_b; sum_b -= sum_out_b;
stack_start = stack_ptr + div - rx; stack_start = stack_ptr + div - rx;
if (stack_start >= div) if(stack_start >= div) stack_start -= div;
stack_start -= div;
stack_pix_ptr = &stack[stack_start]; stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r; sum_out_r -= stack_pix_ptr->r;
@ -642,8 +648,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
sum_b += sum_in_b; sum_b += sum_in_b;
++stack_ptr; ++stack_ptr;
if (stack_ptr >= div) if(stack_ptr >= div) stack_ptr = 0;
stack_ptr = 0;
stack_pix_ptr = &stack[stack_ptr]; stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r; sum_out_r += stack_pix_ptr->r;
@ -658,8 +663,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
if(ry > 0) if(ry > 0)
{ {
if (ry > 254) if(ry > 254) ry = 254;
ry = 254;
div = ry * 2 + 1; div = ry * 2 + 1;
mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[ry]; mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[ry];
shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[ry]; shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[ry];
@ -668,7 +672,15 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
int stride = img.stride(); int stride = img.stride();
for(x = 0; x < w; x++) for(x = 0; x < w; x++)
{ {
sum_r = sum_g = sum_b = sum_in_r = sum_in_g = sum_in_b = sum_out_r = sum_out_g = sum_out_b = 0; sum_r =
sum_g =
sum_b =
sum_in_r =
sum_in_g =
sum_in_b =
sum_out_r =
sum_out_g =
sum_out_b = 0;
src_pix_ptr = img.pix_ptr(x, 0); src_pix_ptr = img.pix_ptr(x, 0);
for(i = 0; i <= ry; i++) for(i = 0; i <= ry; i++)
@ -686,8 +698,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
} }
for(i = 1; i <= ry; i++) for(i = 1; i <= ry; i++)
{ {
if (i <= hm) if(i <= hm) src_pix_ptr += stride;
src_pix_ptr += stride;
stack_pix_ptr = &stack[i + ry]; stack_pix_ptr = &stack[i + ry];
stack_pix_ptr->r = src_pix_ptr[R]; stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G]; stack_pix_ptr->g = src_pix_ptr[G];
@ -702,8 +713,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
stack_ptr = ry; stack_ptr = ry;
yp = ry; yp = ry;
if (yp > hm) if(yp > hm) yp = hm;
yp = hm;
src_pix_ptr = img.pix_ptr(x, yp); src_pix_ptr = img.pix_ptr(x, yp);
dst_pix_ptr = img.pix_ptr(x, 0); dst_pix_ptr = img.pix_ptr(x, 0);
for(y = 0; y < h; y++) for(y = 0; y < h; y++)
@ -718,8 +728,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
sum_b -= sum_out_b; sum_b -= sum_out_b;
stack_start = stack_ptr + div - ry; stack_start = stack_ptr + div - ry;
if (stack_start >= div) if(stack_start >= div) stack_start -= div;
stack_start -= div;
stack_pix_ptr = &stack[stack_start]; stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r; sum_out_r -= stack_pix_ptr->r;
@ -744,8 +753,7 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
sum_b += sum_in_b; sum_b += sum_in_b;
++stack_ptr; ++stack_ptr;
if (stack_ptr >= div) if(stack_ptr >= div) stack_ptr = 0;
stack_ptr = 0;
stack_pix_ptr = &stack[stack_ptr]; stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r; sum_out_r += stack_pix_ptr->r;
@ -759,13 +767,21 @@ void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry)
} }
} }
//=======================================================stack_blur_rgba32 //=======================================================stack_blur_rgba32
template<class Img> template<class Img>
void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry) void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
{ {
typedef typename Img::color_type color_type; typedef typename Img::color_type color_type;
typedef typename Img::order_type order_type; typedef typename Img::order_type order_type;
enum order_e { R = order_type::R, G = order_type::G, B = order_type::B, A = order_type::A }; enum order_e
{
R = order_type::R,
G = order_type::G,
B = order_type::B,
A = order_type::A
};
unsigned x, y, xp, yp, i; unsigned x, y, xp, yp, i;
unsigned stack_ptr; unsigned stack_ptr;
@ -801,8 +817,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
if(rx > 0) if(rx > 0)
{ {
if (rx > 254) if(rx > 254) rx = 254;
rx = 254;
div = rx * 2 + 1; div = rx * 2 + 1;
mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[rx]; mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[rx];
shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[rx]; shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[rx];
@ -810,8 +825,18 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
for(y = 0; y < h; y++) for(y = 0; y < h; y++)
{ {
sum_r = sum_g = sum_b = sum_a = sum_in_r = sum_in_g = sum_in_b = sum_in_a = sum_out_r = sum_out_g = sum_r =
sum_out_b = sum_out_a = 0; sum_g =
sum_b =
sum_a =
sum_in_r =
sum_in_g =
sum_in_b =
sum_in_a =
sum_out_r =
sum_out_g =
sum_out_b =
sum_out_a = 0;
src_pix_ptr = img.pix_ptr(0, y); src_pix_ptr = img.pix_ptr(0, y);
for(i = 0; i <= rx; i++) for(i = 0; i <= rx; i++)
@ -832,8 +857,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
} }
for(i = 1; i <= rx; i++) for(i = 1; i <= rx; i++)
{ {
if (i <= wm) if(i <= wm) src_pix_ptr += Img::pix_width;
src_pix_ptr += Img::pix_width;
stack_pix_ptr = &stack[i + rx]; stack_pix_ptr = &stack[i + rx];
stack_pix_ptr->r = src_pix_ptr[R]; stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G]; stack_pix_ptr->g = src_pix_ptr[G];
@ -851,8 +875,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
stack_ptr = rx; stack_ptr = rx;
xp = rx; xp = rx;
if (xp > wm) if(xp > wm) xp = wm;
xp = wm;
src_pix_ptr = img.pix_ptr(xp, y); src_pix_ptr = img.pix_ptr(xp, y);
dst_pix_ptr = img.pix_ptr(0, y); dst_pix_ptr = img.pix_ptr(0, y);
for(x = 0; x < w; x++) for(x = 0; x < w; x++)
@ -869,8 +892,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
sum_a -= sum_out_a; sum_a -= sum_out_a;
stack_start = stack_ptr + div - rx; stack_start = stack_ptr + div - rx;
if (stack_start >= div) if(stack_start >= div) stack_start -= div;
stack_start -= div;
stack_pix_ptr = &stack[stack_start]; stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r; sum_out_r -= stack_pix_ptr->r;
@ -899,8 +921,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
sum_a += sum_in_a; sum_a += sum_in_a;
++stack_ptr; ++stack_ptr;
if (stack_ptr >= div) if(stack_ptr >= div) stack_ptr = 0;
stack_ptr = 0;
stack_pix_ptr = &stack[stack_ptr]; stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r; sum_out_r += stack_pix_ptr->r;
@ -917,8 +938,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
if(ry > 0) if(ry > 0)
{ {
if (ry > 254) if(ry > 254) ry = 254;
ry = 254;
div = ry * 2 + 1; div = ry * 2 + 1;
mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[ry]; mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[ry];
shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[ry]; shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[ry];
@ -927,8 +947,18 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
int stride = img.stride(); int stride = img.stride();
for(x = 0; x < w; x++) for(x = 0; x < w; x++)
{ {
sum_r = sum_g = sum_b = sum_a = sum_in_r = sum_in_g = sum_in_b = sum_in_a = sum_out_r = sum_out_g = sum_r =
sum_out_b = sum_out_a = 0; sum_g =
sum_b =
sum_a =
sum_in_r =
sum_in_g =
sum_in_b =
sum_in_a =
sum_out_r =
sum_out_g =
sum_out_b =
sum_out_a = 0;
src_pix_ptr = img.pix_ptr(x, 0); src_pix_ptr = img.pix_ptr(x, 0);
for(i = 0; i <= ry; i++) for(i = 0; i <= ry; i++)
@ -949,8 +979,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
} }
for(i = 1; i <= ry; i++) for(i = 1; i <= ry; i++)
{ {
if (i <= hm) if(i <= hm) src_pix_ptr += stride;
src_pix_ptr += stride;
stack_pix_ptr = &stack[i + ry]; stack_pix_ptr = &stack[i + ry];
stack_pix_ptr->r = src_pix_ptr[R]; stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G]; stack_pix_ptr->g = src_pix_ptr[G];
@ -968,8 +997,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
stack_ptr = ry; stack_ptr = ry;
yp = ry; yp = ry;
if (yp > hm) if(yp > hm) yp = hm;
yp = hm;
src_pix_ptr = img.pix_ptr(x, yp); src_pix_ptr = img.pix_ptr(x, yp);
dst_pix_ptr = img.pix_ptr(x, 0); dst_pix_ptr = img.pix_ptr(x, 0);
for(y = 0; y < h; y++) for(y = 0; y < h; y++)
@ -986,8 +1014,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
sum_a -= sum_out_a; sum_a -= sum_out_a;
stack_start = stack_ptr + div - ry; stack_start = stack_ptr + div - ry;
if (stack_start >= div) if(stack_start >= div) stack_start -= div;
stack_start -= div;
stack_pix_ptr = &stack[stack_start]; stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r; sum_out_r -= stack_pix_ptr->r;
@ -1016,8 +1043,7 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
sum_a += sum_in_a; sum_a += sum_in_a;
++stack_ptr; ++stack_ptr;
if (stack_ptr >= div) if(stack_ptr >= div) stack_ptr = 0;
stack_ptr = 0;
stack_pix_ptr = &stack[stack_ptr]; stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r; sum_out_r += stack_pix_ptr->r;
@ -1033,9 +1059,10 @@ void stack_blur_rgba32(Img& img, unsigned rx, unsigned ry)
} }
} }
//===========================================================recursive_blur //===========================================================recursive_blur
template<class ColorT, class CalculatorT> template<class ColorT, class CalculatorT> class recursive_blur
class recursive_blur
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
@ -1044,25 +1071,30 @@ class recursive_blur
typedef typename calculator_type::value_type calc_type; typedef typename calculator_type::value_type calc_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Img> template<class Img> void blur_x(Img& img, double radius)
void blur_x(Img& img, double radius)
{ {
if (radius < 0.62) if(radius < 0.62) return;
return; if(img.width() < 3) return;
if (img.width() < 3)
return;
calc_type s = calc_type(radius * 0.5); calc_type s = calc_type(radius * 0.5);
calc_type q = calc_type((s < 2.5) ? 3.97156 - 4.14554 * sqrt(1 - 0.26891 * s) : 0.98711 * s - 0.96330); calc_type q = calc_type((s < 2.5) ?
3.97156 - 4.14554 * sqrt(1 - 0.26891 * s) :
0.98711 * s - 0.96330);
calc_type q2 = calc_type(q * q); calc_type q2 = calc_type(q * q);
calc_type q3 = calc_type(q2 * q); calc_type q3 = calc_type(q2 * q);
calc_type b0 = calc_type(1.0 / (1.578250 + 2.444130 * q + 1.428100 * q2 + 0.422205 * q3)); calc_type b0 = calc_type(1.0 / (1.578250 +
2.444130 * q +
1.428100 * q2 +
0.422205 * q3));
calc_type b1 = calc_type(2.44413 * q + 2.85619 * q2 + 1.26661 * q3); calc_type b1 = calc_type( 2.44413 * q +
2.85619 * q2 +
1.26661 * q3);
calc_type b2 = calc_type(-1.42810 * q2 + -1.26661 * q3); calc_type b2 = calc_type(-1.42810 * q2 +
-1.26661 * q3);
calc_type b3 = calc_type(0.422205 * q3); calc_type b3 = calc_type(0.422205 * q3);
@ -1114,16 +1146,14 @@ class recursive_blur
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Img> template<class Img> void blur_y(Img& img, double radius)
void blur_y(Img& img, double radius)
{ {
pixfmt_transposer<Img> img2(img); pixfmt_transposer<Img> img2(img);
blur_x(img2, radius); blur_x(img2, radius);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Img> template<class Img> void blur(Img& img, double radius)
void blur(Img& img, double radius)
{ {
blur_x(img, radius); blur_x(img, radius);
pixfmt_transposer<Img> img2(img); pixfmt_transposer<Img> img2(img);
@ -1136,9 +1166,9 @@ class recursive_blur
agg::pod_vector<color_type> m_buf; agg::pod_vector<color_type> m_buf;
}; };
//=================================================recursive_blur_calc_rgba //=================================================recursive_blur_calc_rgba
template<class T = double> template<class T=double> struct recursive_blur_calc_rgba
struct recursive_blur_calc_rgba
{ {
typedef T value_type; typedef T value_type;
typedef recursive_blur_calc_rgba<T> self_type; typedef recursive_blur_calc_rgba<T> self_type;
@ -1180,9 +1210,9 @@ struct recursive_blur_calc_rgba
} }
}; };
//=================================================recursive_blur_calc_rgb //=================================================recursive_blur_calc_rgb
template<class T = double> template<class T=double> struct recursive_blur_calc_rgb
struct recursive_blur_calc_rgb
{ {
typedef T value_type; typedef T value_type;
typedef recursive_blur_calc_rgb<T> self_type; typedef recursive_blur_calc_rgb<T> self_type;
@ -1221,9 +1251,9 @@ struct recursive_blur_calc_rgb
} }
}; };
//================================================recursive_blur_calc_gray //================================================recursive_blur_calc_gray
template<class T = double> template<class T=double> struct recursive_blur_calc_gray
struct recursive_blur_calc_gray
{ {
typedef T value_type; typedef T value_type;
typedef recursive_blur_calc_gray<T> self_type; typedef recursive_blur_calc_gray<T> self_type;
@ -1256,6 +1286,9 @@ struct recursive_blur_calc_gray
} }
}; };
} // namespace agg }
#endif #endif

View file

@ -21,18 +21,14 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//-----------------------------------------------------------bounding_rect //-----------------------------------------------------------bounding_rect
template<class VertexSource, class GetId, class CoordT> template<class VertexSource, class GetId, class CoordT>
bool bounding_rect(VertexSource& vs, bool bounding_rect(VertexSource& vs, GetId& gi,
GetId& gi, unsigned start, unsigned num,
unsigned start, CoordT* x1, CoordT* y1, CoordT* x2, CoordT* y2)
unsigned num,
CoordT* x1,
CoordT* y1,
CoordT* x2,
CoordT* y2)
{ {
unsigned i; unsigned i;
double x; double x;
@ -62,14 +58,10 @@ bool bounding_rect(VertexSource& vs,
} }
else else
{ {
if (CoordT(x) < *x1) if(CoordT(x) < *x1) *x1 = CoordT(x);
*x1 = CoordT(x); if(CoordT(y) < *y1) *y1 = CoordT(y);
if (CoordT(y) < *y1) if(CoordT(x) > *x2) *x2 = CoordT(x);
*y1 = CoordT(y); if(CoordT(y) > *y2) *y2 = CoordT(y);
if (CoordT(x) > *x2)
*x2 = CoordT(x);
if (CoordT(y) > *y2)
*y2 = CoordT(y);
} }
} }
} }
@ -77,9 +69,11 @@ bool bounding_rect(VertexSource& vs,
return *x1 <= *x2 && *y1 <= *y2; return *x1 <= *x2 && *y1 <= *y2;
} }
//-----------------------------------------------------bounding_rect_single //-----------------------------------------------------bounding_rect_single
template<class VertexSource, class CoordT> template<class VertexSource, class CoordT>
bool bounding_rect_single(VertexSource& vs, unsigned path_id, CoordT* x1, CoordT* y1, CoordT* x2, CoordT* y2) bool bounding_rect_single(VertexSource& vs, unsigned path_id,
CoordT* x1, CoordT* y1, CoordT* x2, CoordT* y2)
{ {
double x; double x;
double y; double y;
@ -106,20 +100,17 @@ bool bounding_rect_single(VertexSource& vs, unsigned path_id, CoordT* x1, CoordT
} }
else else
{ {
if (CoordT(x) < *x1) if(CoordT(x) < *x1) *x1 = CoordT(x);
*x1 = CoordT(x); if(CoordT(y) < *y1) *y1 = CoordT(y);
if (CoordT(y) < *y1) if(CoordT(x) > *x2) *x2 = CoordT(x);
*y1 = CoordT(y); if(CoordT(y) > *y2) *y2 = CoordT(y);
if (CoordT(x) > *x2)
*x2 = CoordT(x);
if (CoordT(y) > *y2)
*y2 = CoordT(y);
} }
} }
} }
return *x1 <= *x2 && *y1 <= *y2; return *x1 <= *x2 && *y1 <= *y2;
} }
} // namespace agg
}
#endif #endif

View file

@ -22,7 +22,8 @@
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//----------------------------------------------------------------bspline //----------------------------------------------------------------bspline
// A very simple class of Bi-cubic Spline interpolation. // A very simple class of Bi-cubic Spline interpolation.
// First call init(num, x[], y[]) where num - number of source points, // First call init(num, x[], y[]) where num - number of source points,
@ -69,6 +70,7 @@ class bspline
mutable int m_last_idx; mutable int m_last_idx;
}; };
} // namespace agg
}
#endif #endif

View file

@ -21,10 +21,12 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//------------------------------------------------------------------------ //------------------------------------------------------------------------
enum clipping_flags_e { enum clipping_flags_e
{
clipping_flags_x1_clipped = 4, clipping_flags_x1_clipped = 4,
clipping_flags_x2_clipped = 1, clipping_flags_x2_clipped = 1,
clipping_flags_y1_clipped = 8, clipping_flags_y1_clipped = 8,
@ -54,7 +56,10 @@ enum clipping_flags_e {
template<class T> template<class T>
inline unsigned clipping_flags(T x, T y, const rect_base<T>& clip_box) inline unsigned clipping_flags(T x, T y, const rect_base<T>& clip_box)
{ {
return (x > clip_box.x2) | ((y > clip_box.y2) << 1) | ((x < clip_box.x1) << 2) | ((y < clip_box.y1) << 3); return (x > clip_box.x2) |
((y > clip_box.y2) << 1) |
((x < clip_box.x1) << 2) |
((y < clip_box.y1) << 3);
} }
//--------------------------------------------------------clipping_flags_x //--------------------------------------------------------clipping_flags_x
@ -64,6 +69,7 @@ inline unsigned clipping_flags_x(T x, const rect_base<T>& clip_box)
return (x > clip_box.x2) | ((x < clip_box.x1) << 2); return (x > clip_box.x2) | ((x < clip_box.x1) << 2);
} }
//--------------------------------------------------------clipping_flags_y //--------------------------------------------------------clipping_flags_y
template<class T> template<class T>
inline unsigned clipping_flags_y(T y, const rect_base<T>& clip_box) inline unsigned clipping_flags_y(T y, const rect_base<T>& clip_box)
@ -71,9 +77,12 @@ inline unsigned clipping_flags_y(T y, const rect_base<T>& clip_box)
return ((y > clip_box.y2) << 1) | ((y < clip_box.y1) << 3); return ((y > clip_box.y2) << 1) | ((y < clip_box.y1) << 3);
} }
//-------------------------------------------------------clip_liang_barsky //-------------------------------------------------------clip_liang_barsky
template<class T> template<class T>
inline unsigned clip_liang_barsky(T x1, T y1, T x2, T y2, const rect_base<T>& clip_box, T* x, T* y) inline unsigned clip_liang_barsky(T x1, T y1, T x2, T y2,
const rect_base<T>& clip_box,
T* x, T* y)
{ {
const double nearzero = 1e-30; const double nearzero = 1e-30;
@ -219,9 +228,12 @@ inline unsigned clip_liang_barsky(T x1, T y1, T x2, T y2, const rect_base<T>& cl
return np; return np;
} }
//---------------------------------------------------------------------------- //----------------------------------------------------------------------------
template<class T> template<class T>
bool clip_move_point(T x1, T y1, T x2, T y2, const rect_base<T>& clip_box, T* x, T* y, unsigned flags) bool clip_move_point(T x1, T y1, T x2, T y2,
const rect_base<T>& clip_box,
T* x, T* y, unsigned flags)
{ {
T bound; T bound;
@ -256,7 +268,8 @@ bool clip_move_point(T x1, T y1, T x2, T y2, const rect_base<T>& clip_box, T* x,
// (ret & 2) != 0 - Second point has been moved // (ret & 2) != 0 - Second point has been moved
// //
template<class T> template<class T>
unsigned clip_line_segment(T* x1, T* y1, T* x2, T* y2, const rect_base<T>& clip_box) unsigned clip_line_segment(T* x1, T* y1, T* x2, T* y2,
const rect_base<T>& clip_box)
{ {
unsigned f1 = clipping_flags(*x1, *y1, clip_box); unsigned f1 = clipping_flags(*x1, *y1, clip_box);
unsigned f2 = clipping_flags(*x2, *y2, clip_box); unsigned f2 = clipping_flags(*x2, *y2, clip_box);
@ -268,13 +281,15 @@ unsigned clip_line_segment(T* x1, T* y1, T* x2, T* y2, const rect_base<T>& clip_
return 0; return 0;
} }
if ((f1 & clipping_flags_x_clipped) != 0 && (f1 & clipping_flags_x_clipped) == (f2 & clipping_flags_x_clipped)) if((f1 & clipping_flags_x_clipped) != 0 &&
(f1 & clipping_flags_x_clipped) == (f2 & clipping_flags_x_clipped))
{ {
// Fully clipped // Fully clipped
return 4; return 4;
} }
if ((f1 & clipping_flags_y_clipped) != 0 && (f1 & clipping_flags_y_clipped) == (f2 & clipping_flags_y_clipped)) if((f1 & clipping_flags_y_clipped) != 0 &&
(f1 & clipping_flags_y_clipped) == (f2 & clipping_flags_y_clipped))
{ {
// Fully clipped // Fully clipped
return 4; return 4;
@ -311,6 +326,8 @@ unsigned clip_line_segment(T* x1, T* y1, T* x2, T* y2, const rect_base<T>& clip_
return ret; return ret;
} }
} // namespace agg
}
#endif #endif

View file

@ -31,7 +31,8 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_color_rgba.h" #include "agg_color_rgba.h"
namespace agg { namespace agg
{
//===================================================================gray8 //===================================================================gray8
template<class Colorspace> template<class Colorspace>
@ -40,7 +41,8 @@ struct gray8T
typedef int8u value_type; typedef int8u value_type;
typedef int32u calc_type; typedef int32u calc_type;
typedef int32 long_type; typedef int32 long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = 8, base_shift = 8,
base_scale = 1 << base_shift, base_scale = 1 << base_shift,
base_mask = base_scale - 1, base_mask = base_scale - 1,
@ -103,22 +105,17 @@ struct gray8T
gray8T() {} gray8T() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray8T(unsigned v_, unsigned a_ = base_mask) gray8T(unsigned v_, unsigned a_=base_mask) :
: v(int8u(v_)) v(int8u(v_)), a(int8u(a_)) {}
, a(int8u(a_))
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray8T(const self_type& c, unsigned a_) gray8T(const self_type& c, unsigned a_) :
: v(c.v) v(c.v), a(value_type(a_)) {}
, a(value_type(a_))
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray8T(const rgba& c) gray8T(const rgba& c) :
: v(luminance(c)) v(luminance(c)),
, a(value_type(uround(c.a * base_mask))) a(value_type(uround(c.a * base_mask))) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class T> template<class T>
@ -150,18 +147,36 @@ struct gray8T
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba8 make_rgba8(const linear&) const { return rgba8(v, v, v, a); } rgba8 make_rgba8(const linear&) const
{
return rgba8(v, v, v, a);
}
rgba8 make_rgba8(const sRGB&) const { return convert_from_sRGB<srgba8>(); } rgba8 make_rgba8(const sRGB&) const
{
return convert_from_sRGB<srgba8>();
}
operator rgba8() const { return make_rgba8(Colorspace()); } operator rgba8() const
{
return make_rgba8(Colorspace());
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
srgba8 make_srgba8(const linear&) const { return convert_to_sRGB<rgba8>(); } srgba8 make_srgba8(const linear&) const
{
return convert_to_sRGB<rgba8>();
}
srgba8 make_srgba8(const sRGB&) const { return srgba8(v, v, v, a); } srgba8 make_srgba8(const sRGB&) const
{
return srgba8(v, v, v, a);
}
operator srgba8() const { return make_rgba8(Colorspace()); } operator srgba8() const
{
return make_rgba8(Colorspace());
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba16 make_rgba16(const linear&) const rgba16 make_rgba16(const linear&) const
@ -170,9 +185,15 @@ struct gray8T
return rgba16(rgb, rgb, rgb, (a << 8) | a); return rgba16(rgb, rgb, rgb, (a << 8) | a);
} }
rgba16 make_rgba16(const sRGB&) const { return convert_from_sRGB<rgba16>(); } rgba16 make_rgba16(const sRGB&) const
{
return convert_from_sRGB<rgba16>();
}
operator rgba16() const { return make_rgba16(Colorspace()); } operator rgba16() const
{
return make_rgba16(Colorspace());
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba32 make_rgba32(const linear&) const rgba32 make_rgba32(const linear&) const
@ -181,27 +202,51 @@ struct gray8T
return rgba32(v32, v32, v32, a / 255.0); return rgba32(v32, v32, v32, a / 255.0);
} }
rgba32 make_rgba32(const sRGB&) const { return convert_from_sRGB<rgba32>(); } rgba32 make_rgba32(const sRGB&) const
{
return convert_from_sRGB<rgba32>();
}
operator rgba32() const { return make_rgba32(Colorspace()); } operator rgba32() const
{
return make_rgba32(Colorspace());
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE double to_double(value_type a) { return double(a) / base_mask; } static AGG_INLINE double to_double(value_type a)
{
return double(a) / base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type from_double(double a) { return value_type(uround(a * base_mask)); } static AGG_INLINE value_type from_double(double a)
{
return value_type(uround(a * base_mask));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type empty_value() { return 0; } static AGG_INLINE value_type empty_value()
{
return 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type full_value() { return base_mask; } static AGG_INLINE value_type full_value()
{
return base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_transparent() const { return a == 0; } AGG_INLINE bool is_transparent() const
{
return a == 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_opaque() const { return a == base_mask; } AGG_INLINE bool is_opaque() const
{
return a == base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, exact over int8u. // Fixed-point multiply, exact over int8u.
@ -222,8 +267,7 @@ struct gray8T
{ {
return base_mask; return base_mask;
} }
else else return value_type((a * base_mask + (b >> 1)) / b);
return value_type((a * base_mask + (b >> 1)) / b);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -243,14 +287,23 @@ struct gray8T
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, exact over int8u. // Fixed-point multiply, exact over int8u.
// Specifically for multiplying a color component by a cover. // Specifically for multiplying a color component by a cover.
static AGG_INLINE value_type mult_cover(value_type a, value_type b) { return multiply(a, b); } static AGG_INLINE value_type mult_cover(value_type a, value_type b)
{
return multiply(a, b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE cover_type scale_cover(cover_type a, value_type b) { return multiply(b, a); } static AGG_INLINE cover_type scale_cover(cover_type a, value_type b)
{
return multiply(b, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a, assuming q is premultiplied by a. // Interpolate p to q by a, assuming q is premultiplied by a.
static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a) { return p + q - multiply(p, a); } static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a)
{
return p + q - multiply(p, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a. // Interpolate p to q by a.
@ -277,27 +330,25 @@ struct gray8T
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& opacity(double a_) self_type& opacity(double a_)
{ {
if (a_ < 0) if (a_ < 0) a = 0;
a = 0; else if (a_ > 1) a = 1;
else if (a_ > 1) else a = (value_type)uround(a_ * double(base_mask));
a = 1;
else
a = (value_type)uround(a_ * double(base_mask));
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
double opacity() const { return double(a) / double(base_mask); } double opacity() const
{
return double(a) / double(base_mask);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& premultiply() self_type& premultiply()
{ {
if (a < base_mask) if (a < base_mask)
{ {
if (a == 0) if (a == 0) v = 0;
v = 0; else v = multiply(v, a);
else
v = multiply(v, a);
} }
return *this; return *this;
} }
@ -363,13 +414,15 @@ struct gray8T
typedef gray8T<linear> gray8; typedef gray8T<linear> gray8;
typedef gray8T<sRGB> sgray8; typedef gray8T<sRGB> sgray8;
//==================================================================gray16 //==================================================================gray16
struct gray16 struct gray16
{ {
typedef int16u value_type; typedef int16u value_type;
typedef int32u calc_type; typedef int32u calc_type;
typedef int64 long_type; typedef int64 long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = 16, base_shift = 16,
base_scale = 1 << base_shift, base_scale = 1 << base_shift,
base_mask = base_scale - 1, base_mask = base_scale - 1,
@ -383,7 +436,8 @@ struct gray16
static value_type luminance(const rgba& c) static value_type luminance(const rgba& c)
{ {
// Calculate grayscale value as per ITU-R BT.709. // Calculate grayscale value as per ITU-R BT.709.
return value_type(uround((0.2126 * c.r + 0.7152 * c.g + 0.0722 * c.b) * static_cast<double>(base_mask))); return value_type(uround((0.2126 * c.r + 0.7152 * c.g + 0.0722 * c.b)
* static_cast<double>(base_mask)));
} }
static value_type luminance(const rgba16& c) static value_type luminance(const rgba16& c)
@ -392,65 +446,67 @@ struct gray16
return value_type((13933u * c.r + 46872u * c.g + 4732u * c.b) >> 16); return value_type((13933u * c.r + 46872u * c.g + 4732u * c.b) >> 16);
} }
static value_type luminance(const rgba8& c) { return luminance(rgba16(c)); } static value_type luminance(const rgba8& c)
{
return luminance(rgba16(c));
}
static value_type luminance(const srgba8& c) { return luminance(rgba16(c)); } static value_type luminance(const srgba8& c)
{
return luminance(rgba16(c));
}
static value_type luminance(const rgba32& c) { return luminance(rgba(c)); } static value_type luminance(const rgba32& c)
{
return luminance(rgba(c));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16() {} gray16() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(unsigned v_, unsigned a_ = base_mask) gray16(unsigned v_, unsigned a_ = base_mask) :
: v(int16u(v_)) v(int16u(v_)), a(int16u(a_)) {}
, a(int16u(a_))
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(const self_type& c, unsigned a_) gray16(const self_type& c, unsigned a_) :
: v(c.v) v(c.v), a(value_type(a_)) {}
, a(value_type(a_))
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(const rgba& c) gray16(const rgba& c) :
: v(luminance(c)) v(luminance(c)),
, a((value_type)uround(c.a * double(base_mask))) a((value_type)uround(c.a * double(base_mask))) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(const rgba8& c) gray16(const rgba8& c) :
: v(luminance(c)) v(luminance(c)),
, a((value_type(c.a) << 8) | c.a) a((value_type(c.a) << 8) | c.a) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(const srgba8& c) gray16(const srgba8& c) :
: v(luminance(c)) v(luminance(c)),
, a((value_type(c.a) << 8) | c.a) a((value_type(c.a) << 8) | c.a) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(const rgba16& c) gray16(const rgba16& c) :
: v(luminance(c)) v(luminance(c)),
, a(c.a) a(c.a) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(const gray8& c) gray16(const gray8& c) :
: v((value_type(c.v) << 8) | c.v) v((value_type(c.v) << 8) | c.v),
, a((value_type(c.a) << 8) | c.a) a((value_type(c.a) << 8) | c.a) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray16(const sgray8& c) gray16(const sgray8& c) :
: v(sRGB_conv<value_type>::rgb_from_sRGB(c.v)) v(sRGB_conv<value_type>::rgb_from_sRGB(c.v)),
, a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba8() const { return rgba8(v >> 8, v >> 8, v >> 8, a >> 8); } operator rgba8() const
{
return rgba8(v >> 8, v >> 8, v >> 8, a >> 8);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator srgba8() const operator srgba8() const
@ -460,19 +516,30 @@ struct gray16
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba16() const { return rgba16(v, v, v, a); } operator rgba16() const
{
return rgba16(v, v, v, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator gray8() const { return gray8(v >> 8, a >> 8); } operator gray8() const
{
return gray8(v >> 8, a >> 8);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator sgray8() const operator sgray8() const
{ {
return sgray8(sRGB_conv<value_type>::rgb_to_sRGB(v), sRGB_conv<value_type>::alpha_to_sRGB(a)); return sgray8(
sRGB_conv<value_type>::rgb_to_sRGB(v),
sRGB_conv<value_type>::alpha_to_sRGB(a));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE double to_double(value_type a) { return static_cast<double>(a) / static_cast<double>(base_mask); } static AGG_INLINE double to_double(value_type a)
{
return static_cast<double>(a) / static_cast<double>(base_mask);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type from_double(double a) static AGG_INLINE value_type from_double(double a)
@ -481,16 +548,28 @@ struct gray16
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type empty_value() { return 0; } static AGG_INLINE value_type empty_value()
{
return 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type full_value() { return base_mask; } static AGG_INLINE value_type full_value()
{
return base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_transparent() const { return a == 0; } AGG_INLINE bool is_transparent() const
{
return a == 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_opaque() const { return a == base_mask; } AGG_INLINE bool is_opaque() const
{
return a == base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, exact over int16u. // Fixed-point multiply, exact over int16u.
@ -511,8 +590,7 @@ struct gray16
{ {
return base_mask; return base_mask;
} }
else else return value_type((a * base_mask + (b >> 1)) / b);
return value_type((a * base_mask + (b >> 1)) / b);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -532,14 +610,23 @@ struct gray16
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, almost exact over int16u. // Fixed-point multiply, almost exact over int16u.
// Specifically for multiplying a color component by a cover. // Specifically for multiplying a color component by a cover.
static AGG_INLINE value_type mult_cover(value_type a, cover_type b) { return multiply(a, b << 8 | b); } static AGG_INLINE value_type mult_cover(value_type a, cover_type b)
{
return multiply(a, b << 8 | b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE cover_type scale_cover(cover_type a, value_type b) { return mult_cover(b, a) >> 8; } static AGG_INLINE cover_type scale_cover(cover_type a, value_type b)
{
return mult_cover(b, a) >> 8;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a, assuming q is premultiplied by a. // Interpolate p to q by a, assuming q is premultiplied by a.
static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a) { return p + q - multiply(p, a); } static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a)
{
return p + q - multiply(p, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a. // Interpolate p to q by a.
@ -566,27 +653,26 @@ struct gray16
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& opacity(double a_) self_type& opacity(double a_)
{ {
if (a_ < 0) if (a_ < 0) a = 0;
a = 0; else if(a_ > 1) a = 1;
else if (a_ > 1) else a = (value_type)uround(a_ * double(base_mask));
a = 1;
else
a = (value_type)uround(a_ * double(base_mask));
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
double opacity() const { return double(a) / double(base_mask); } double opacity() const
{
return double(a) / double(base_mask);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& premultiply() self_type& premultiply()
{ {
if (a < base_mask) if (a < base_mask)
{ {
if (a == 0) if(a == 0) v = 0;
v = 0; else v = multiply(v, a);
else
v = multiply(v, a);
} }
return *this; return *this;
} }
@ -649,6 +735,7 @@ struct gray16
static self_type no_color() { return self_type(0,0); } static self_type no_color() { return self_type(0,0); }
}; };
//===================================================================gray32 //===================================================================gray32
struct gray32 struct gray32
{ {
@ -660,7 +747,8 @@ struct gray32
value_type v; value_type v;
value_type a; value_type a;
enum base_scale_e { enum base_scale_e
{
base_shift = 8, base_shift = 8,
base_scale = 1 << base_shift, base_scale = 1 << base_shift,
base_mask = base_scale - 1, base_mask = base_scale - 1,
@ -672,92 +760,103 @@ struct gray32
return value_type(0.2126 * r + 0.7152 * g + 0.0722 * b); return value_type(0.2126 * r + 0.7152 * g + 0.0722 * b);
} }
static value_type luminance(const rgba& c) { return luminance(c.r, c.g, c.b); } static value_type luminance(const rgba& c)
{
return luminance(c.r, c.g, c.b);
}
static value_type luminance(const rgba32& c) { return luminance(c.r, c.g, c.b); } static value_type luminance(const rgba32& c)
{
return luminance(c.r, c.g, c.b);
}
static value_type luminance(const rgba8& c) { return luminance(c.r / 255.0, c.g / 255.0, c.g / 255.0); } static value_type luminance(const rgba8& c)
{
return luminance(c.r / 255.0, c.g / 255.0, c.g / 255.0);
}
static value_type luminance(const rgba16& c) { return luminance(c.r / 65535.0, c.g / 65535.0, c.g / 65535.0); } static value_type luminance(const rgba16& c)
{
return luminance(c.r / 65535.0, c.g / 65535.0, c.g / 65535.0);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32() {} gray32() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(value_type v_, value_type a_ = 1) gray32(value_type v_, value_type a_ = 1) :
: v(v_) v(v_), a(a_) {}
, a(a_)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const self_type& c, value_type a_) gray32(const self_type& c, value_type a_) :
: v(c.v) v(c.v), a(a_) {}
, a(a_)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const rgba& c) gray32(const rgba& c) :
: v(luminance(c)) v(luminance(c)),
, a(value_type(c.a)) a(value_type(c.a)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const rgba8& c) gray32(const rgba8& c) :
: v(luminance(c)) v(luminance(c)),
, a(value_type(c.a / 255.0)) a(value_type(c.a / 255.0)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const srgba8& c) gray32(const srgba8& c) :
: v(luminance(rgba32(c))) v(luminance(rgba32(c))),
, a(value_type(c.a / 255.0)) a(value_type(c.a / 255.0)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const rgba16& c) gray32(const rgba16& c) :
: v(luminance(c)) v(luminance(c)),
, a(value_type(c.a / 65535.0)) a(value_type(c.a / 65535.0)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const rgba32& c) gray32(const rgba32& c) :
: v(luminance(c)) v(luminance(c)),
, a(value_type(c.a)) a(value_type(c.a)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const gray8& c) gray32(const gray8& c) :
: v(value_type(c.v / 255.0)) v(value_type(c.v / 255.0)),
, a(value_type(c.a / 255.0)) a(value_type(c.a / 255.0)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const sgray8& c) gray32(const sgray8& c) :
: v(sRGB_conv<value_type>::rgb_from_sRGB(c.v)) v(sRGB_conv<value_type>::rgb_from_sRGB(c.v)),
, a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gray32(const gray16& c) gray32(const gray16& c) :
: v(value_type(c.v / 65535.0)) v(value_type(c.v / 65535.0)),
, a(value_type(c.a / 65535.0)) a(value_type(c.a / 65535.0)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba() const { return rgba(v, v, v, a); } operator rgba() const
{
return rgba(v, v, v, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator gray8() const { return gray8(uround(v * 255.0), uround(a * 255.0)); } operator gray8() const
{
return gray8(uround(v * 255.0), uround(a * 255.0));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator sgray8() const operator sgray8() const
{ {
// Return (non-premultiplied) sRGB values. // Return (non-premultiplied) sRGB values.
return sgray8(sRGB_conv<value_type>::rgb_to_sRGB(v), sRGB_conv<value_type>::alpha_to_sRGB(a)); return sgray8(
sRGB_conv<value_type>::rgb_to_sRGB(v),
sRGB_conv<value_type>::alpha_to_sRGB(a));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator gray16() const { return gray16(uround(v * 65535.0), uround(a * 65535.0)); } operator gray16() const
{
return gray16(uround(v * 65535.0), uround(a * 65535.0));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba8() const operator rgba8() const
@ -781,31 +880,58 @@ struct gray32
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE double to_double(value_type a) { return a; } static AGG_INLINE double to_double(value_type a)
{
return a;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type from_double(double a) { return value_type(a); } static AGG_INLINE value_type from_double(double a)
{
return value_type(a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type empty_value() { return 0; } static AGG_INLINE value_type empty_value()
{
return 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type full_value() { return 1; } static AGG_INLINE value_type full_value()
{
return 1;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_transparent() const { return a <= 0; } AGG_INLINE bool is_transparent() const
{
return a <= 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_opaque() const { return a >= 1; } AGG_INLINE bool is_opaque() const
{
return a >= 1;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type invert(value_type x) { return 1 - x; } static AGG_INLINE value_type invert(value_type x)
{
return 1 - x;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type multiply(value_type a, value_type b) { return value_type(a * b); } static AGG_INLINE value_type multiply(value_type a, value_type b)
{
return value_type(a * b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type demultiply(value_type a, value_type b) { return (b == 0) ? 0 : value_type(a / b); } static AGG_INLINE value_type demultiply(value_type a, value_type b)
{
return (b == 0) ? 0 : value_type(a / b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<typename T> template<typename T>
@ -828,7 +954,10 @@ struct gray32
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE cover_type scale_cover(cover_type a, value_type b) { return cover_type(uround(a * b)); } static AGG_INLINE cover_type scale_cover(cover_type a, value_type b)
{
return cover_type(uround(a * b));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a, assuming q is premultiplied by a. // Interpolate p to q by a, assuming q is premultiplied by a.
@ -865,47 +994,49 @@ struct gray32
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& opacity(double a_) self_type& opacity(double a_)
{ {
if (a_ < 0) if (a_ < 0) a = 0;
a = 0; else if (a_ > 1) a = 1;
else if (a_ > 1) else a = value_type(a_);
a = 1;
else
a = value_type(a_);
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
double opacity() const { return a; } double opacity() const
{
return a;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& premultiply() self_type& premultiply()
{ {
if (a < 0) if (a < 0) v = 0;
v = 0; else if(a < 1) v *= a;
else if (a < 1)
v *= a;
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& demultiply() self_type& demultiply()
{ {
if (a < 0) if (a < 0) v = 0;
v = 0; else if (a < 1) v /= a;
else if (a < 1)
v /= a;
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type gradient(self_type c, double k) const self_type gradient(self_type c, double k) const
{ {
return self_type(value_type(v + (c.v - v) * k), value_type(a + (c.a - a) * k)); return self_type(
value_type(v + (c.v - v) * k),
value_type(a + (c.a - a) * k));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static self_type no_color() { return self_type(0,0); } static self_type no_color() { return self_type(0,0); }
}; };
} // namespace agg }
#endif #endif

View file

@ -28,39 +28,20 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_gamma_lut.h" #include "agg_gamma_lut.h"
namespace agg { namespace agg
{
// Supported byte orders for RGB and RGBA pixel formats // Supported byte orders for RGB and RGBA pixel formats
//======================================================================= //=======================================================================
struct order_rgb struct order_rgb { enum rgb_e { R=0, G=1, B=2, rgb_tag, hasAlpha=false }; }; //----order_rgb
{ struct order_bgr { enum bgr_e { B=0, G=1, R=2, rgb_tag, hasAlpha=false }; }; //----order_bgr
enum rgb_e { R = 0, G = 1, B = 2, rgb_tag, hasAlpha = false }; struct order_rgba { enum rgba_e { R=0, G=1, B=2, A=3, rgba_tag, hasAlpha=true }; }; //----order_rgba
}; //----order_rgb struct order_argb { enum argb_e { A=0, R=1, G=2, B=3, rgba_tag, hasAlpha=true }; }; //----order_argb
struct order_bgr struct order_abgr { enum abgr_e { A=0, B=1, G=2, R=3, rgba_tag, hasAlpha=true }; }; //----order_abgr
{ struct order_bgra { enum bgra_e { B=0, G=1, R=2, A=3, rgba_tag, hasAlpha=true }; }; //----order_bgra
enum bgr_e { B = 0, G = 1, R = 2, rgb_tag, hasAlpha = false };
}; //----order_bgr
struct order_rgba
{
enum rgba_e { R = 0, G = 1, B = 2, A = 3, rgba_tag, hasAlpha = true };
}; //----order_rgba
struct order_argb
{
enum argb_e { A = 0, R = 1, G = 2, B = 3, rgba_tag, hasAlpha = true };
}; //----order_argb
struct order_abgr
{
enum abgr_e { A = 0, B = 1, G = 2, R = 3, rgba_tag, hasAlpha = true };
}; //----order_abgr
struct order_bgra
{
enum bgra_e { B = 0, G = 1, R = 2, A = 3, rgba_tag, hasAlpha = true };
}; //----order_bgra
// Colorspace tag types. // Colorspace tag types.
struct linear struct linear {};
{}; struct sRGB {};
struct sRGB
{};
//====================================================================rgba //====================================================================rgba
struct rgba struct rgba
@ -76,20 +57,11 @@ struct rgba
rgba() {} rgba() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba(double r_, double g_, double b_, double a_ = 1.0) rgba(double r_, double g_, double b_, double a_=1.0) :
: r(r_) r(r_), g(g_), b(b_), a(a_) {}
, g(g_)
, b(b_)
, a(a_)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba(const rgba& c, double a_) rgba(const rgba& c, double a_) : r(c.r), g(c.g), b(c.b), a(a_) {}
: r(c.r)
, g(c.g)
, b(c.b)
, a(a_)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba& clear() rgba& clear()
@ -108,17 +80,17 @@ struct rgba
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba& opacity(double a_) rgba& opacity(double a_)
{ {
if (a_ < 0) if (a_ < 0) a = 0;
a = 0; else if (a_ > 1) a = 1;
else if (a_ > 1) else a = a_;
a = 1;
else
a = a_;
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
double opacity() const { return a; } double opacity() const
{
return a;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba& premultiply() rgba& premultiply()
@ -164,6 +136,7 @@ struct rgba
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba gradient(rgba c, double k) const rgba gradient(rgba c, double k) const
{ {
@ -200,7 +173,11 @@ struct rgba
static rgba from_wavelength(double wl, double gamma = 1.0); static rgba from_wavelength(double wl, double gamma = 1.0);
//-------------------------------------------------------------------- //--------------------------------------------------------------------
explicit rgba(double wavelen, double gamma = 1.0) { *this = from_wavelength(wavelen, gamma); } explicit rgba(double wavelen, double gamma=1.0)
{
*this = from_wavelength(wavelen, gamma);
}
}; };
inline rgba operator+(const rgba& a, const rgba& b) inline rgba operator+(const rgba& a, const rgba& b)
@ -249,10 +226,8 @@ inline rgba rgba::from_wavelength(double wl, double gamma)
} }
double s = 1.0; double s = 1.0;
if (wl > 700.0) if (wl > 700.0) s = 0.3 + 0.7 * (780.0 - wl) / (780.0 - 700.0);
s = 0.3 + 0.7 * (780.0 - wl) / (780.0 - 700.0); else if (wl < 420.0) s = 0.3 + 0.7 * (wl - 380.0) / (420.0 - 380.0);
else if (wl < 420.0)
s = 0.3 + 0.7 * (wl - 380.0) / (420.0 - 380.0);
t.r = pow(t.r * s, gamma); t.r = pow(t.r * s, gamma);
t.g = pow(t.g * s, gamma); t.g = pow(t.g * s, gamma);
@ -265,6 +240,7 @@ inline rgba rgba_pre(double r, double g, double b, double a)
return rgba(r, g, b, a).premultiply(); return rgba(r, g, b, a).premultiply();
} }
//===================================================================rgba8 //===================================================================rgba8
template<class Colorspace> template<class Colorspace>
struct rgba8T struct rgba8T
@ -272,7 +248,8 @@ struct rgba8T
typedef int8u value_type; typedef int8u value_type;
typedef int32u calc_type; typedef int32u calc_type;
typedef int32 long_type; typedef int32 long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = 8, base_shift = 8,
base_scale = 1 << base_shift, base_scale = 1 << base_shift,
base_mask = base_scale - 1, base_mask = base_scale - 1,
@ -280,6 +257,7 @@ struct rgba8T
}; };
typedef rgba8T self_type; typedef rgba8T self_type;
value_type r; value_type r;
value_type g; value_type g;
value_type b; value_type b;
@ -339,23 +317,21 @@ struct rgba8T
rgba8T() {} rgba8T() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba8T(unsigned r_, unsigned g_, unsigned b_, unsigned a_ = base_mask) rgba8T(unsigned r_, unsigned g_, unsigned b_, unsigned a_ = base_mask) :
: r(value_type(r_)) r(value_type(r_)),
, g(value_type(g_)) g(value_type(g_)),
, b(value_type(b_)) b(value_type(b_)),
, a(value_type(a_)) a(value_type(a_)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba8T(const rgba& c) { convert(*this, c); } rgba8T(const rgba& c)
{
convert(*this, c);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba8T(const self_type& c, unsigned a_) rgba8T(const self_type& c, unsigned a_) :
: r(c.r) r(c.r), g(c.g), b(c.b), a(value_type(a_)) {}
, g(c.g)
, b(c.b)
, a(value_type(a_))
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class T> template<class T>
@ -373,25 +349,46 @@ struct rgba8T
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE double to_double(value_type a) { return double(a) / base_mask; } static AGG_INLINE double to_double(value_type a)
{
return double(a) / base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type from_double(double a) { return value_type(uround(a * base_mask)); } static AGG_INLINE value_type from_double(double a)
{
return value_type(uround(a * base_mask));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type empty_value() { return 0; } static AGG_INLINE value_type empty_value()
{
return 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type full_value() { return base_mask; } static AGG_INLINE value_type full_value()
{
return base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_transparent() const { return a == 0; } AGG_INLINE bool is_transparent() const
{
return a == 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_opaque() const { return a == base_mask; } AGG_INLINE bool is_opaque() const
{
return a == base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type invert(value_type x) { return base_mask - x; } static AGG_INLINE value_type invert(value_type x)
{
return base_mask - x;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, exact over int8u. // Fixed-point multiply, exact over int8u.
@ -412,8 +409,7 @@ struct rgba8T
{ {
return base_mask; return base_mask;
} }
else else return value_type((a * base_mask + (b >> 1)) / b);
return value_type((a * base_mask + (b >> 1)) / b);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -433,14 +429,23 @@ struct rgba8T
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, exact over int8u. // Fixed-point multiply, exact over int8u.
// Specifically for multiplying a color component by a cover. // Specifically for multiplying a color component by a cover.
static AGG_INLINE value_type mult_cover(value_type a, cover_type b) { return multiply(a, b); } static AGG_INLINE value_type mult_cover(value_type a, cover_type b)
{
return multiply(a, b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE cover_type scale_cover(cover_type a, value_type b) { return multiply(b, a); } static AGG_INLINE cover_type scale_cover(cover_type a, value_type b)
{
return multiply(b, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a, assuming q is premultiplied by a. // Interpolate p to q by a, assuming q is premultiplied by a.
static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a) { return p + q - multiply(p, a); } static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a)
{
return p + q - multiply(p, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a. // Interpolate p to q by a.
@ -467,17 +472,17 @@ struct rgba8T
//-------------------------------------------------------------------- //--------------------------------------------------------------------
self_type& opacity(double a_) self_type& opacity(double a_)
{ {
if (a_ < 0) if (a_ < 0) a = 0;
a = 0; else if (a_ > 1) a = 1;
else if (a_ > 1) else a = (value_type)uround(a_ * double(base_mask));
a = 1;
else
a = (value_type)uround(a_ * double(base_mask));
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
double opacity() const { return double(a) / double(base_mask); } double opacity() const
{
return double(a) / double(base_mask);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE self_type& premultiply() AGG_INLINE self_type& premultiply()
@ -612,7 +617,8 @@ typedef rgba8T<linear> rgba8;
typedef rgba8T<sRGB> srgba8; typedef rgba8T<sRGB> srgba8;
//-------------------------------------------------------------rgba8_pre //-------------------------------------------------------------rgba8_pre
inline rgba8 rgba8_pre(unsigned r, unsigned g, unsigned b, unsigned a = rgba8::base_mask) inline rgba8 rgba8_pre(unsigned r, unsigned g, unsigned b,
unsigned a = rgba8::base_mask)
{ {
return rgba8(r,g,b,a).premultiply(); return rgba8(r,g,b,a).premultiply();
} }
@ -633,6 +639,9 @@ inline rgba8 rgba8_pre(const rgba& c, double a)
return rgba8(c,a).premultiply(); return rgba8(c,a).premultiply();
} }
//-------------------------------------------------------------rgb8_packed //-------------------------------------------------------------rgb8_packed
inline rgba8 rgb8_packed(unsigned v) inline rgba8 rgb8_packed(unsigned v)
{ {
@ -665,13 +674,16 @@ rgba8 rgba8_gamma_inv(rgba8 c, const GammaLUT& gamma)
return rgba8(gamma.inv(c.r), gamma.inv(c.g), gamma.inv(c.b), c.a); return rgba8(gamma.inv(c.r), gamma.inv(c.g), gamma.inv(c.b), c.a);
} }
//==================================================================rgba16 //==================================================================rgba16
struct rgba16 struct rgba16
{ {
typedef int16u value_type; typedef int16u value_type;
typedef int32u calc_type; typedef int32u calc_type;
typedef int64 long_type; typedef int64 long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = 16, base_shift = 16,
base_scale = 1 << base_shift, base_scale = 1 << base_shift,
base_mask = base_scale - 1, base_mask = base_scale - 1,
@ -688,63 +700,69 @@ struct rgba16
rgba16() {} rgba16() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba16(unsigned r_, unsigned g_, unsigned b_, unsigned a_ = base_mask) rgba16(unsigned r_, unsigned g_, unsigned b_, unsigned a_=base_mask) :
: r(value_type(r_)) r(value_type(r_)),
, g(value_type(g_)) g(value_type(g_)),
, b(value_type(b_)) b(value_type(b_)),
, a(value_type(a_)) a(value_type(a_)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba16(const self_type& c, unsigned a_) rgba16(const self_type& c, unsigned a_) :
: r(c.r) r(c.r), g(c.g), b(c.b), a(value_type(a_)) {}
, g(c.g)
, b(c.b)
, a(value_type(a_))
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba16(const rgba& c) rgba16(const rgba& c) :
: r((value_type)uround(c.r * double(base_mask))) r((value_type)uround(c.r * double(base_mask))),
, g((value_type)uround(c.g * double(base_mask))) g((value_type)uround(c.g * double(base_mask))),
, b((value_type)uround(c.b * double(base_mask))) b((value_type)uround(c.b * double(base_mask))),
, a((value_type)uround(c.a * double(base_mask))) a((value_type)uround(c.a * double(base_mask))) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba16(const rgba8& c) rgba16(const rgba8& c) :
: r(value_type((value_type(c.r) << 8) | c.r)) r(value_type((value_type(c.r) << 8) | c.r)),
, g(value_type((value_type(c.g) << 8) | c.g)) g(value_type((value_type(c.g) << 8) | c.g)),
, b(value_type((value_type(c.b) << 8) | c.b)) b(value_type((value_type(c.b) << 8) | c.b)),
, a(value_type((value_type(c.a) << 8) | c.a)) a(value_type((value_type(c.a) << 8) | c.a)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba16(const srgba8& c) rgba16(const srgba8& c) :
: r(sRGB_conv<value_type>::rgb_from_sRGB(c.r)) r(sRGB_conv<value_type>::rgb_from_sRGB(c.r)),
, g(sRGB_conv<value_type>::rgb_from_sRGB(c.g)) g(sRGB_conv<value_type>::rgb_from_sRGB(c.g)),
, b(sRGB_conv<value_type>::rgb_from_sRGB(c.b)) b(sRGB_conv<value_type>::rgb_from_sRGB(c.b)),
, a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba() const { return rgba(r / 65535.0, g / 65535.0, b / 65535.0, a / 65535.0); } operator rgba() const
{
return rgba(
r / 65535.0,
g / 65535.0,
b / 65535.0,
a / 65535.0);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba8() const { return rgba8(r >> 8, g >> 8, b >> 8, a >> 8); } operator rgba8() const
{
return rgba8(r >> 8, g >> 8, b >> 8, a >> 8);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator srgba8() const operator srgba8() const
{ {
// Return (non-premultiplied) sRGB values. // Return (non-premultiplied) sRGB values.
return srgba8(sRGB_conv<value_type>::rgb_to_sRGB(r), return srgba8(
sRGB_conv<value_type>::rgb_to_sRGB(r),
sRGB_conv<value_type>::rgb_to_sRGB(g), sRGB_conv<value_type>::rgb_to_sRGB(g),
sRGB_conv<value_type>::rgb_to_sRGB(b), sRGB_conv<value_type>::rgb_to_sRGB(b),
sRGB_conv<value_type>::alpha_to_sRGB(a)); sRGB_conv<value_type>::alpha_to_sRGB(a));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE double to_double(value_type a) { return static_cast<double>(a) / static_cast<double>(base_mask); } static AGG_INLINE double to_double(value_type a)
{
return static_cast<double>(a) / static_cast<double>(base_mask);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type from_double(double a) static AGG_INLINE value_type from_double(double a)
@ -753,19 +771,34 @@ struct rgba16
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type empty_value() { return 0; } static AGG_INLINE value_type empty_value()
{
return 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type full_value() { return base_mask; } static AGG_INLINE value_type full_value()
{
return base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_transparent() const { return a == 0; } AGG_INLINE bool is_transparent() const
{
return a == 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_opaque() const { return a == base_mask; } AGG_INLINE bool is_opaque() const
{
return a == base_mask;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type invert(value_type x) { return base_mask - x; } static AGG_INLINE value_type invert(value_type x)
{
return base_mask - x;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, exact over int16u. // Fixed-point multiply, exact over int16u.
@ -786,8 +819,7 @@ struct rgba16
{ {
return base_mask; return base_mask;
} }
else else return value_type((a * base_mask + (b >> 1)) / b);
return value_type((a * base_mask + (b >> 1)) / b);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -807,14 +839,23 @@ struct rgba16
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Fixed-point multiply, almost exact over int16u. // Fixed-point multiply, almost exact over int16u.
// Specifically for multiplying a color component by a cover. // Specifically for multiplying a color component by a cover.
static AGG_INLINE value_type mult_cover(value_type a, cover_type b) { return multiply(a, (b << 8) | b); } static AGG_INLINE value_type mult_cover(value_type a, cover_type b)
{
return multiply(a, (b << 8) | b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE cover_type scale_cover(cover_type a, value_type b) { return multiply((a << 8) | a, b) >> 8; } static AGG_INLINE cover_type scale_cover(cover_type a, value_type b)
{
return multiply((a << 8) | a, b) >> 8;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a, assuming q is premultiplied by a. // Interpolate p to q by a, assuming q is premultiplied by a.
static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a) { return p + q - multiply(p, a); } static AGG_INLINE value_type prelerp(value_type p, value_type q, value_type a)
{
return p + q - multiply(p, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a. // Interpolate p to q by a.
@ -841,16 +882,17 @@ struct rgba16
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE self_type& opacity(double a_) AGG_INLINE self_type& opacity(double a_)
{ {
if (a_ < 0) if (a_ < 0) a = 0;
a = 0; if (a_ > 1) a = 1;
if (a_ > 1)
a = 1;
a = value_type(uround(a_ * double(base_mask))); a = value_type(uround(a_ * double(base_mask)));
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
double opacity() const { return double(a) / double(base_mask); } double opacity() const
{
return double(a) / double(base_mask);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE self_type& premultiply() AGG_INLINE self_type& premultiply()
@ -981,6 +1023,7 @@ struct rgba16
} }
}; };
//------------------------------------------------------rgba16_gamma_dir //------------------------------------------------------rgba16_gamma_dir
template<class GammaLUT> template<class GammaLUT>
rgba16 rgba16_gamma_dir(rgba16 c, const GammaLUT& gamma) rgba16 rgba16_gamma_dir(rgba16 c, const GammaLUT& gamma)
@ -1012,63 +1055,59 @@ struct rgba32
rgba32() {} rgba32() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba32(value_type r_, value_type g_, value_type b_, value_type a_ = 1) rgba32(value_type r_, value_type g_, value_type b_, value_type a_= 1) :
: r(r_) r(r_), g(g_), b(b_), a(a_) {}
, g(g_)
, b(b_)
, a(a_)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba32(const self_type& c, float a_) rgba32(const self_type& c, float a_) :
: r(c.r) r(c.r), g(c.g), b(c.b), a(a_) {}
, g(c.g)
, b(c.b)
, a(a_)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba32(const rgba& c) rgba32(const rgba& c) :
: r(value_type(c.r)) r(value_type(c.r)), g(value_type(c.g)), b(value_type(c.b)), a(value_type(c.a)) {}
, g(value_type(c.g))
, b(value_type(c.b))
, a(value_type(c.a))
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba32(const rgba8& c) rgba32(const rgba8& c) :
: r(value_type(c.r / 255.0)) r(value_type(c.r / 255.0)),
, g(value_type(c.g / 255.0)) g(value_type(c.g / 255.0)),
, b(value_type(c.b / 255.0)) b(value_type(c.b / 255.0)),
, a(value_type(c.a / 255.0)) a(value_type(c.a / 255.0)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba32(const srgba8& c) rgba32(const srgba8& c) :
: r(sRGB_conv<value_type>::rgb_from_sRGB(c.r)) r(sRGB_conv<value_type>::rgb_from_sRGB(c.r)),
, g(sRGB_conv<value_type>::rgb_from_sRGB(c.g)) g(sRGB_conv<value_type>::rgb_from_sRGB(c.g)),
, b(sRGB_conv<value_type>::rgb_from_sRGB(c.b)) b(sRGB_conv<value_type>::rgb_from_sRGB(c.b)),
, a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) a(sRGB_conv<value_type>::alpha_from_sRGB(c.a)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rgba32(const rgba16& c) rgba32(const rgba16& c) :
: r(value_type(c.r / 65535.0)) r(value_type(c.r / 65535.0)),
, g(value_type(c.g / 65535.0)) g(value_type(c.g / 65535.0)),
, b(value_type(c.b / 65535.0)) b(value_type(c.b / 65535.0)),
, a(value_type(c.a / 65535.0)) a(value_type(c.a / 65535.0)) {}
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba() const { return rgba(r, g, b, a); } operator rgba() const
{
return rgba(r, g, b, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba8() const { return rgba8(uround(r * 255.0), uround(g * 255.0), uround(b * 255.0), uround(a * 255.0)); } operator rgba8() const
{
return rgba8(
uround(r * 255.0),
uround(g * 255.0),
uround(b * 255.0),
uround(a * 255.0));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator srgba8() const operator srgba8() const
{ {
return srgba8(sRGB_conv<value_type>::rgb_to_sRGB(r), return srgba8(
sRGB_conv<value_type>::rgb_to_sRGB(r),
sRGB_conv<value_type>::rgb_to_sRGB(g), sRGB_conv<value_type>::rgb_to_sRGB(g),
sRGB_conv<value_type>::rgb_to_sRGB(b), sRGB_conv<value_type>::rgb_to_sRGB(b),
sRGB_conv<value_type>::alpha_to_sRGB(a)); sRGB_conv<value_type>::alpha_to_sRGB(a));
@ -1077,35 +1116,66 @@ struct rgba32
//-------------------------------------------------------------------- //--------------------------------------------------------------------
operator rgba16() const operator rgba16() const
{ {
return rgba8(uround(r * 65535.0), uround(g * 65535.0), uround(b * 65535.0), uround(a * 65535.0)); return rgba8(
uround(r * 65535.0),
uround(g * 65535.0),
uround(b * 65535.0),
uround(a * 65535.0));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE double to_double(value_type a) { return a; } static AGG_INLINE double to_double(value_type a)
{
return a;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type from_double(double a) { return value_type(a); } static AGG_INLINE value_type from_double(double a)
{
return value_type(a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type empty_value() { return 0; } static AGG_INLINE value_type empty_value()
{
return 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type full_value() { return 1; } static AGG_INLINE value_type full_value()
{
return 1;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_transparent() const { return a <= 0; } AGG_INLINE bool is_transparent() const
{
return a <= 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE bool is_opaque() const { return a >= 1; } AGG_INLINE bool is_opaque() const
{
return a >= 1;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type invert(value_type x) { return 1 - x; } static AGG_INLINE value_type invert(value_type x)
{
return 1 - x;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type multiply(value_type a, value_type b) { return value_type(a * b); } static AGG_INLINE value_type multiply(value_type a, value_type b)
{
return value_type(a * b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE value_type demultiply(value_type a, value_type b) { return (b == 0) ? 0 : value_type(a / b); } static AGG_INLINE value_type demultiply(value_type a, value_type b)
{
return (b == 0) ? 0 : value_type(a / b);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<typename T> template<typename T>
@ -1128,7 +1198,10 @@ struct rgba32
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE cover_type scale_cover(cover_type a, value_type b) { return cover_type(uround(a * b)); } static AGG_INLINE cover_type scale_cover(cover_type a, value_type b)
{
return cover_type(uround(a * b));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Interpolate p to q by a, assuming q is premultiplied by a. // Interpolate p to q by a, assuming q is premultiplied by a.
@ -1165,17 +1238,17 @@ struct rgba32
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE self_type& opacity(double a_) AGG_INLINE self_type& opacity(double a_)
{ {
if (a_ < 0) if (a_ < 0) a = 0;
a = 0; else if (a_ > 1) a = 1;
else if (a_ > 1) else a = value_type(a_);
a = 1;
else
a = value_type(a_);
return *this; return *this;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
double opacity() const { return a; } double opacity() const
{
return a;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE self_type& premultiply() AGG_INLINE self_type& premultiply()
@ -1251,14 +1324,10 @@ struct rgba32
b += mult_cover(c.b, cover); b += mult_cover(c.b, cover);
a += mult_cover(c.a, cover); a += mult_cover(c.a, cover);
} }
if (a > 1) if (a > 1) a = 1;
a = 1; if (r > a) r = a;
if (r > a) if (g > a) g = a;
r = a; if (b > a) b = a;
if (g > a)
g = a;
if (b > a)
b = a;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -1288,6 +1357,8 @@ struct rgba32
return self_type(rgba::from_wavelength(wl, gamma)); return self_type(rgba::from_wavelength(wl, gamma));
} }
}; };
} // namespace agg }
#endif #endif

View file

@ -26,6 +26,7 @@
// but it won't result any crash and the rest of the library will remain // but it won't result any crash and the rest of the library will remain
// fully functional. // fully functional.
//--------------------------------------- //---------------------------------------
// 2. Default rendering_buffer type. Can be: // 2. Default rendering_buffer type. Can be:
// //

View file

@ -18,7 +18,8 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//------------------------------------------------------------null_markers //------------------------------------------------------------null_markers
struct null_markers struct null_markers
{ {
@ -31,16 +32,23 @@ struct null_markers
unsigned type() const { return 0; } unsigned type() const { return 0; }
}; };
//------------------------------------------------------conv_adaptor_vcgen //------------------------------------------------------conv_adaptor_vcgen
template<class VertexSource, class Generator, class Markers = null_markers> template<class VertexSource,
class conv_adaptor_vcgen class Generator,
class Markers=null_markers> class conv_adaptor_vcgen
{ {
enum status { initial, accumulate, generate }; enum status
{
initial,
accumulate,
generate
};
public: public:
explicit conv_adaptor_vcgen(VertexSource& source) explicit conv_adaptor_vcgen(VertexSource& source) :
: m_source(&source) m_source(&source),
, m_status(initial) m_status(initial)
{} {}
conv_adaptor_vcgen(conv_adaptor_vcgen<VertexSource, Generator, Markers> &&) = default; conv_adaptor_vcgen(conv_adaptor_vcgen<VertexSource, Generator, Markers> &&) = default;
@ -77,6 +85,10 @@ class conv_adaptor_vcgen
double m_start_y; double m_start_y;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource, class Generator, class Markers> template<class VertexSource, class Generator, class Markers>
unsigned conv_adaptor_vcgen<VertexSource, Generator, Markers>::vertex(double* x, double* y) unsigned conv_adaptor_vcgen<VertexSource, Generator, Markers>::vertex(double* x, double* y)
@ -93,8 +105,7 @@ unsigned conv_adaptor_vcgen<VertexSource, Generator, Markers>::vertex(double* x,
m_status = accumulate; m_status = accumulate;
case accumulate: case accumulate:
if (is_stop(m_last_cmd)) if(is_stop(m_last_cmd)) return path_cmd_stop;
return path_cmd_stop;
m_generator.remove_all(); m_generator.remove_all();
m_generator.add_vertex(m_start_x, m_start_y, path_cmd_move_to); m_generator.add_vertex(m_start_x, m_start_y, path_cmd_move_to);
@ -146,6 +157,6 @@ unsigned conv_adaptor_vcgen<VertexSource, Generator, Markers>::vertex(double* x,
return cmd; return cmd;
} }
} // namespace agg }
#endif #endif

View file

@ -18,16 +18,14 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//======================================================conv_adaptor_vpgen //======================================================conv_adaptor_vpgen
template<class VertexSource, class VPGen> template<class VertexSource, class VPGen> class conv_adaptor_vpgen
class conv_adaptor_vpgen
{ {
public: public:
explicit conv_adaptor_vpgen(VertexSource& source) explicit conv_adaptor_vpgen(VertexSource& source) : m_source(&source) {}
: m_source(&source)
{}
void attach(VertexSource& source) { m_source = &source; } void attach(VertexSource& source) { m_source = &source; }
VPGen& vpgen() { return m_vpgen; } VPGen& vpgen() { return m_vpgen; }
@ -39,7 +37,8 @@ class conv_adaptor_vpgen
private: private:
conv_adaptor_vpgen(const conv_adaptor_vpgen<VertexSource, VPGen>&); conv_adaptor_vpgen(const conv_adaptor_vpgen<VertexSource, VPGen>&);
const conv_adaptor_vpgen<VertexSource, VPGen>& operator=(const conv_adaptor_vpgen<VertexSource, VPGen>&); const conv_adaptor_vpgen<VertexSource, VPGen>&
operator = (const conv_adaptor_vpgen<VertexSource, VPGen>&);
VertexSource* m_source; VertexSource* m_source;
VPGen m_vpgen; VPGen m_vpgen;
@ -49,6 +48,8 @@ class conv_adaptor_vpgen
int m_vertices; int m_vertices;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource, class VPGen> template<class VertexSource, class VPGen>
void conv_adaptor_vpgen<VertexSource, VPGen>::rewind(unsigned path_id) void conv_adaptor_vpgen<VertexSource, VPGen>::rewind(unsigned path_id)
@ -61,6 +62,7 @@ void conv_adaptor_vpgen<VertexSource, VPGen>::rewind(unsigned path_id)
m_vertices = 0; m_vertices = 0;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource, class VPGen> template<class VertexSource, class VPGen>
unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y) unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y)
@ -69,8 +71,7 @@ unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y)
for(;;) for(;;)
{ {
cmd = m_vpgen.vertex(x, y); cmd = m_vpgen.vertex(x, y);
if (!is_stop(cmd)) if(!is_stop(cmd)) break;
break;
if(m_poly_flags && !m_vpgen.auto_unclose()) if(m_poly_flags && !m_vpgen.auto_unclose())
{ {
@ -102,7 +103,8 @@ unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y)
if(m_vpgen.auto_close() && m_vertices > 2) if(m_vpgen.auto_close() && m_vertices > 2)
{ {
m_vpgen.line_to(m_start_x, m_start_y); m_vpgen.line_to(m_start_x, m_start_y);
m_poly_flags = path_cmd_end_poly | static_cast<path_commands_e>(path_flags_close); m_poly_flags = path_cmd_end_poly
| static_cast<path_commands_e>(path_flags_close);
m_start_x = tx; m_start_x = tx;
m_start_y = ty; m_start_y = ty;
m_vertices = -1; m_vertices = -1;
@ -126,8 +128,7 @@ unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y)
m_poly_flags = cmd; m_poly_flags = cmd;
if(is_closed(cmd) || m_vpgen.auto_close()) if(is_closed(cmd) || m_vpgen.auto_close())
{ {
if (m_vpgen.auto_close()) if(m_vpgen.auto_close()) m_poly_flags |= path_flags_close;
m_poly_flags |= path_flags_close;
if(m_vertices > 2) if(m_vertices > 2)
{ {
m_vpgen.line_to(m_start_x, m_start_y); m_vpgen.line_to(m_start_x, m_start_y);
@ -141,7 +142,8 @@ unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y)
if(m_vpgen.auto_close() && m_vertices > 2) if(m_vpgen.auto_close() && m_vertices > 2)
{ {
m_vpgen.line_to(m_start_x, m_start_y); m_vpgen.line_to(m_start_x, m_start_y);
m_poly_flags = path_cmd_end_poly | static_cast<path_commands_e>(path_flags_close); m_poly_flags = path_cmd_end_poly
| static_cast<path_commands_e>(path_flags_close);
m_vertices = -2; m_vertices = -2;
continue; continue;
} }
@ -152,6 +154,8 @@ unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y)
return cmd; return cmd;
} }
} // namespace agg
}
#endif #endif

View file

@ -19,7 +19,9 @@
#include "agg_vcgen_bspline.h" #include "agg_vcgen_bspline.h"
#include "agg_conv_adaptor_vcgen.h" #include "agg_conv_adaptor_vcgen.h"
namespace agg {
namespace agg
{
//---------------------------------------------------------conv_bspline //---------------------------------------------------------conv_bspline
template<class VertexSource> template<class VertexSource>
@ -27,18 +29,20 @@ struct conv_bspline : public conv_adaptor_vcgen<VertexSource, vcgen_bspline>
{ {
typedef conv_adaptor_vcgen<VertexSource, vcgen_bspline> base_type; typedef conv_adaptor_vcgen<VertexSource, vcgen_bspline> base_type;
conv_bspline(VertexSource& vs) conv_bspline(VertexSource& vs) :
: conv_adaptor_vcgen<VertexSource, vcgen_bspline>(vs) conv_adaptor_vcgen<VertexSource, vcgen_bspline>(vs) {}
{}
void interpolation_step(double v) { base_type::generator().interpolation_step(v); } void interpolation_step(double v) { base_type::generator().interpolation_step(v); }
double interpolation_step() const { return base_type::generator().interpolation_step(); } double interpolation_step() const { return base_type::generator().interpolation_step(); }
private: private:
conv_bspline(const conv_bspline<VertexSource>&); conv_bspline(const conv_bspline<VertexSource>&);
const conv_bspline<VertexSource>& operator=(const conv_bspline<VertexSource>&); const conv_bspline<VertexSource>&
operator = (const conv_bspline<VertexSource>&);
}; };
} // namespace agg }
#endif #endif

View file

@ -30,7 +30,8 @@
#include "agg_conv_adaptor_vpgen.h" #include "agg_conv_adaptor_vpgen.h"
#include "agg_vpgen_clip_polygon.h" #include "agg_vpgen_clip_polygon.h"
namespace agg { namespace agg
{
//=======================================================conv_clip_polygon //=======================================================conv_clip_polygon
template<class VertexSource> template<class VertexSource>
@ -38,11 +39,13 @@ struct conv_clip_polygon : public conv_adaptor_vpgen<VertexSource, vpgen_clip_po
{ {
typedef conv_adaptor_vpgen<VertexSource, vpgen_clip_polygon> base_type; typedef conv_adaptor_vpgen<VertexSource, vpgen_clip_polygon> base_type;
conv_clip_polygon(VertexSource& vs) conv_clip_polygon(VertexSource& vs) :
: conv_adaptor_vpgen<VertexSource, vpgen_clip_polygon>(vs) conv_adaptor_vpgen<VertexSource, vpgen_clip_polygon>(vs) {}
{}
void clip_box(double _x1, double _y1, double _x2, double _y2) { base_type::vpgen().clip_box(_x1, _y1, _x2, _y2); } void clip_box(double _x1, double _y1, double _x2, double _y2)
{
base_type::vpgen().clip_box(_x1, _y1, _x2, _y2);
}
double x1() const { return base_type::vpgen().x1(); } double x1() const { return base_type::vpgen().x1(); }
double y1() const { return base_type::vpgen().y1(); } double y1() const { return base_type::vpgen().y1(); }
@ -52,9 +55,10 @@ struct conv_clip_polygon : public conv_adaptor_vpgen<VertexSource, vpgen_clip_po
private: private:
conv_clip_polygon(const conv_clip_polygon<VertexSource>&); conv_clip_polygon(const conv_clip_polygon<VertexSource>&);
const conv_clip_polygon<VertexSource>& operator=(const conv_clip_polygon<VertexSource>&); const conv_clip_polygon<VertexSource>&
operator = (const conv_clip_polygon<VertexSource>&);
}; };
} // namespace agg }
#endif #endif

View file

@ -30,7 +30,8 @@
#include "agg_conv_adaptor_vpgen.h" #include "agg_conv_adaptor_vpgen.h"
#include "agg_vpgen_clip_polyline.h" #include "agg_vpgen_clip_polyline.h"
namespace agg { namespace agg
{
//=======================================================conv_clip_polyline //=======================================================conv_clip_polyline
template<class VertexSource> template<class VertexSource>
@ -38,11 +39,13 @@ struct conv_clip_polyline : public conv_adaptor_vpgen<VertexSource, vpgen_clip_p
{ {
typedef conv_adaptor_vpgen<VertexSource, vpgen_clip_polyline> base_type; typedef conv_adaptor_vpgen<VertexSource, vpgen_clip_polyline> base_type;
conv_clip_polyline(VertexSource& vs) conv_clip_polyline(VertexSource& vs) :
: conv_adaptor_vpgen<VertexSource, vpgen_clip_polyline>(vs) conv_adaptor_vpgen<VertexSource, vpgen_clip_polyline>(vs) {}
{}
void clip_box(double _x1, double _y1, double _x2, double _y2) { base_type::vpgen().clip_box(_x1, _y1, _x2, _y2); } void clip_box(double _x1, double _y1, double _x2, double _y2)
{
base_type::vpgen().clip_box(_x1, _y1, _x2, _y2);
}
double x1() const { return base_type::vpgen().x1(); } double x1() const { return base_type::vpgen().x1(); }
double y1() const { return base_type::vpgen().y1(); } double y1() const { return base_type::vpgen().y1(); }
@ -52,9 +55,10 @@ struct conv_clip_polyline : public conv_adaptor_vpgen<VertexSource, vpgen_clip_p
private: private:
conv_clip_polyline(const conv_clip_polyline<VertexSource>&); conv_clip_polyline(const conv_clip_polyline<VertexSource>&);
const conv_clip_polyline<VertexSource>& operator=(const conv_clip_polyline<VertexSource>&); const conv_clip_polyline<VertexSource>&
operator = (const conv_clip_polyline<VertexSource>&);
}; };
} // namespace agg }
#endif #endif

View file

@ -18,16 +18,14 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//======================================================conv_close_polygon //======================================================conv_close_polygon
template<class VertexSource> template<class VertexSource> class conv_close_polygon
class conv_close_polygon
{ {
public: public:
explicit conv_close_polygon(VertexSource& vs) explicit conv_close_polygon(VertexSource& vs) : m_source(&vs) {}
: m_source(&vs)
{}
void attach(VertexSource& source) { m_source = &source; } void attach(VertexSource& source) { m_source = &source; }
void rewind(unsigned path_id); void rewind(unsigned path_id);
@ -35,7 +33,8 @@ class conv_close_polygon
private: private:
conv_close_polygon(const conv_close_polygon<VertexSource>&); conv_close_polygon(const conv_close_polygon<VertexSource>&);
const conv_close_polygon<VertexSource>& operator=(const conv_close_polygon<VertexSource>&); const conv_close_polygon<VertexSource>&
operator = (const conv_close_polygon<VertexSource>&);
VertexSource* m_source; VertexSource* m_source;
unsigned m_cmd[2]; unsigned m_cmd[2];
@ -45,6 +44,8 @@ class conv_close_polygon
bool m_line_to; bool m_line_to;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource> template<class VertexSource>
void conv_close_polygon<VertexSource>::rewind(unsigned path_id) void conv_close_polygon<VertexSource>::rewind(unsigned path_id)
@ -54,6 +55,8 @@ void conv_close_polygon<VertexSource>::rewind(unsigned path_id)
m_line_to = false; m_line_to = false;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource> template<class VertexSource>
unsigned conv_close_polygon<VertexSource>::vertex(double* x, double* y) unsigned conv_close_polygon<VertexSource>::vertex(double* x, double* y)
@ -117,6 +120,6 @@ unsigned conv_close_polygon<VertexSource>::vertex(double* x, double* y)
return cmd; return cmd;
} }
} // namespace agg }
#endif #endif

View file

@ -18,22 +18,20 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//=============================================================conv_concat //=============================================================conv_concat
// Concatenation of two paths. Usually used to combine lines or curves // Concatenation of two paths. Usually used to combine lines or curves
// with markers such as arrowheads // with markers such as arrowheads
template<class VS1, class VS2> template<class VS1, class VS2> class conv_concat
class conv_concat
{ {
public: public:
conv_concat(VS1& source1, VS2& source2) conv_concat(VS1& source1, VS2& source2) :
: m_source1(&source1) m_source1(&source1), m_source2(&source2), m_status(2) {}
, m_source2(&source2)
, m_status(2)
{}
void attach1(VS1& source) { m_source1 = &source; } void attach1(VS1& source) { m_source1 = &source; }
void attach2(VS2& source) { m_source2 = &source; } void attach2(VS2& source) { m_source2 = &source; }
void rewind(unsigned path_id) void rewind(unsigned path_id)
{ {
m_source1->rewind(path_id); m_source1->rewind(path_id);
@ -47,15 +45,13 @@ class conv_concat
if(m_status == 0) if(m_status == 0)
{ {
cmd = m_source1->vertex(x, y); cmd = m_source1->vertex(x, y);
if (!is_stop(cmd)) if(!is_stop(cmd)) return cmd;
return cmd;
m_status = 1; m_status = 1;
} }
if(m_status == 1) if(m_status == 1)
{ {
cmd = m_source2->vertex(x, y); cmd = m_source2->vertex(x, y);
if (!is_stop(cmd)) if(!is_stop(cmd)) return cmd;
return cmd;
m_status = 2; m_status = 2;
} }
return path_cmd_stop; return path_cmd_stop;
@ -63,12 +59,15 @@ class conv_concat
private: private:
conv_concat(const conv_concat<VS1, VS2>&); conv_concat(const conv_concat<VS1, VS2>&);
const conv_concat<VS1, VS2>& operator=(const conv_concat<VS1, VS2>&); const conv_concat<VS1, VS2>&
operator = (const conv_concat<VS1, VS2>&);
VS1* m_source1; VS1* m_source1;
VS2* m_source2; VS2* m_source2;
int m_status; int m_status;
}; };
} // namespace agg }
#endif #endif

View file

@ -23,7 +23,8 @@
#include "agg_vcgen_contour.h" #include "agg_vcgen_contour.h"
#include "agg_conv_adaptor_vcgen.h" #include "agg_conv_adaptor_vcgen.h"
namespace agg { namespace agg
{
//-----------------------------------------------------------conv_contour //-----------------------------------------------------------conv_contour
template<class VertexSource> template<class VertexSource>
@ -31,9 +32,10 @@ struct conv_contour : public conv_adaptor_vcgen<VertexSource, vcgen_contour>
{ {
typedef conv_adaptor_vcgen<VertexSource, vcgen_contour> base_type; typedef conv_adaptor_vcgen<VertexSource, vcgen_contour> base_type;
conv_contour(VertexSource& vs) conv_contour(VertexSource& vs) :
: conv_adaptor_vcgen<VertexSource, vcgen_contour>(vs) conv_adaptor_vcgen<VertexSource, vcgen_contour>(vs)
{} {
}
void line_join(line_join_e lj) { base_type::generator().line_join(lj); } void line_join(line_join_e lj) { base_type::generator().line_join(lj); }
void inner_join(inner_join_e ij) { base_type::generator().inner_join(ij); } void inner_join(inner_join_e ij) { base_type::generator().inner_join(ij); }
@ -54,9 +56,10 @@ struct conv_contour : public conv_adaptor_vcgen<VertexSource, vcgen_contour>
private: private:
conv_contour(const conv_contour<VertexSource>&); conv_contour(const conv_contour<VertexSource>&);
const conv_contour<VertexSource>& operator=(const conv_contour<VertexSource>&); const conv_contour<VertexSource>&
operator = (const conv_contour<VertexSource>&);
}; };
} // namespace agg }
#endif #endif

View file

@ -23,7 +23,9 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_curves.h" #include "agg_curves.h"
namespace agg { namespace agg
{
//---------------------------------------------------------------conv_curve //---------------------------------------------------------------conv_curve
// Curve converter class. Any path storage can have Bezier curves defined // Curve converter class. Any path storage can have Bezier curves defined
@ -49,19 +51,17 @@ namespace agg {
// Class conv_curve recognizes commands path_cmd_curve3 and path_cmd_curve4 // Class conv_curve recognizes commands path_cmd_curve3 and path_cmd_curve4
// and converts these vertices into a move_to/line_to sequence. // and converts these vertices into a move_to/line_to sequence.
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
template<class VertexSource, class Curve3 = curve3, class Curve4 = curve4> template<class VertexSource,
class conv_curve class Curve3=curve3,
class Curve4=curve4> class conv_curve
{ {
public: public:
typedef Curve3 curve3_type; typedef Curve3 curve3_type;
typedef Curve4 curve4_type; typedef Curve4 curve4_type;
typedef conv_curve<VertexSource, Curve3, Curve4> self_type; typedef conv_curve<VertexSource, Curve3, Curve4> self_type;
explicit conv_curve(VertexSource& source) explicit conv_curve(VertexSource& source) :
: m_source(&source) m_source(&source), m_last_x(0.0), m_last_y(0.0) {}
, m_last_x(0.0)
, m_last_y(0.0)
{}
conv_curve(self_type &&) = default; conv_curve(self_type &&) = default;
@ -73,7 +73,10 @@ class conv_curve
m_curve4.approximation_method(v); m_curve4.approximation_method(v);
} }
curve_approximation_method_e approximation_method() const { return m_curve4.approximation_method(); } curve_approximation_method_e approximation_method() const
{
return m_curve4.approximation_method();
}
void approximation_scale(double s) void approximation_scale(double s)
{ {
@ -81,7 +84,10 @@ class conv_curve
m_curve4.approximation_scale(s); m_curve4.approximation_scale(s);
} }
double approximation_scale() const { return m_curve4.approximation_scale(); } double approximation_scale() const
{
return m_curve4.approximation_scale();
}
void angle_tolerance(double v) void angle_tolerance(double v)
{ {
@ -89,7 +95,10 @@ class conv_curve
m_curve4.angle_tolerance(v); m_curve4.angle_tolerance(v);
} }
double angle_tolerance() const { return m_curve4.angle_tolerance(); } double angle_tolerance() const
{
return m_curve4.angle_tolerance();
}
void cusp_limit(double v) void cusp_limit(double v)
{ {
@ -97,7 +106,10 @@ class conv_curve
m_curve4.cusp_limit(v); m_curve4.cusp_limit(v);
} }
double cusp_limit() const { return m_curve4.cusp_limit(); } double cusp_limit() const
{
return m_curve4.cusp_limit();
}
void rewind(unsigned path_id); void rewind(unsigned path_id);
unsigned vertex(double* x, double* y); unsigned vertex(double* x, double* y);
@ -113,6 +125,8 @@ class conv_curve
curve4_type m_curve4; curve4_type m_curve4;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource, class Curve3, class Curve4> template<class VertexSource, class Curve3, class Curve4>
void conv_curve<VertexSource, Curve3, Curve4>::rewind(unsigned path_id) void conv_curve<VertexSource, Curve3, Curve4>::rewind(unsigned path_id)
@ -124,6 +138,7 @@ void conv_curve<VertexSource, Curve3, Curve4>::rewind(unsigned path_id)
m_curve4.reset(); m_curve4.reset();
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource, class Curve3, class Curve4> template<class VertexSource, class Curve3, class Curve4>
unsigned conv_curve<VertexSource, Curve3, Curve4>::vertex(double* x, double* y) unsigned conv_curve<VertexSource, Curve3, Curve4>::vertex(double* x, double* y)
@ -153,7 +168,9 @@ unsigned conv_curve<VertexSource, Curve3, Curve4>::vertex(double* x, double* y)
case path_cmd_curve3: case path_cmd_curve3:
m_source->vertex(&end_x, &end_y); m_source->vertex(&end_x, &end_y);
m_curve3.init(m_last_x, m_last_y, *x, *y, end_x, end_y); m_curve3.init(m_last_x, m_last_y,
*x, *y,
end_x, end_y);
m_curve3.vertex(x, y); // First call returns path_cmd_move_to m_curve3.vertex(x, y); // First call returns path_cmd_move_to
m_curve3.vertex(x, y); // This is the first vertex of the curve m_curve3.vertex(x, y); // This is the first vertex of the curve
@ -164,7 +181,10 @@ unsigned conv_curve<VertexSource, Curve3, Curve4>::vertex(double* x, double* y)
m_source->vertex(&ct2_x, &ct2_y); m_source->vertex(&ct2_x, &ct2_y);
m_source->vertex(&end_x, &end_y); m_source->vertex(&end_x, &end_y);
m_curve4.init(m_last_x, m_last_y, *x, *y, ct2_x, ct2_y, end_x, end_y); m_curve4.init(m_last_x, m_last_y,
*x, *y,
ct2_x, ct2_y,
end_x, end_y);
m_curve4.vertex(x, y); // First call returns path_cmd_move_to m_curve4.vertex(x, y); // First call returns path_cmd_move_to
m_curve4.vertex(x, y); // This is the first vertex of the curve m_curve4.vertex(x, y); // This is the first vertex of the curve
@ -176,6 +196,9 @@ unsigned conv_curve<VertexSource, Curve3, Curve4>::vertex(double* x, double* y)
return cmd; return cmd;
} }
} // namespace agg
}
#endif #endif

View file

@ -23,7 +23,8 @@
#include "agg_vcgen_dash.h" #include "agg_vcgen_dash.h"
#include "agg_conv_adaptor_vcgen.h" #include "agg_conv_adaptor_vcgen.h"
namespace agg { namespace agg
{
//---------------------------------------------------------------conv_dash //---------------------------------------------------------------conv_dash
template<class VertexSource, class Markers=null_markers> template<class VertexSource, class Markers=null_markers>
@ -32,24 +33,36 @@ struct conv_dash : public conv_adaptor_vcgen<VertexSource, vcgen_dash, Markers>
typedef Markers marker_type; typedef Markers marker_type;
typedef conv_adaptor_vcgen<VertexSource, vcgen_dash, Markers> base_type; typedef conv_adaptor_vcgen<VertexSource, vcgen_dash, Markers> base_type;
conv_dash(VertexSource& vs) conv_dash(VertexSource& vs) :
: conv_adaptor_vcgen<VertexSource, vcgen_dash, Markers>(vs) conv_adaptor_vcgen<VertexSource, vcgen_dash, Markers>(vs)
{} {
}
void remove_all_dashes() { base_type::generator().remove_all_dashes(); } void remove_all_dashes()
{
base_type::generator().remove_all_dashes();
}
void add_dash(double dash_len, double gap_len) { base_type::generator().add_dash(dash_len, gap_len); } void add_dash(double dash_len, double gap_len)
{
base_type::generator().add_dash(dash_len, gap_len);
}
void dash_start(double ds) { base_type::generator().dash_start(ds); } void dash_start(double ds)
{
base_type::generator().dash_start(ds);
}
void shorten(double s) { base_type::generator().shorten(s); } void shorten(double s) { base_type::generator().shorten(s); }
double shorten() const { return base_type::generator().shorten(); } double shorten() const { return base_type::generator().shorten(); }
private: private:
conv_dash(const conv_dash<VertexSource, Markers>&); conv_dash(const conv_dash<VertexSource, Markers>&);
const conv_dash<VertexSource, Markers>& operator=(const conv_dash<VertexSource, Markers>&); const conv_dash<VertexSource, Markers>&
operator = (const conv_dash<VertexSource, Markers>&);
}; };
} // namespace agg
}
#endif #endif

View file

@ -28,18 +28,32 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_array.h" #include "agg_array.h"
extern "C" { extern "C"
{
#include "gpc.h" #include "gpc.h"
} }
namespace agg { namespace agg
enum gpc_op_e { gpc_or, gpc_and, gpc_xor, gpc_a_minus_b, gpc_b_minus_a }; {
enum gpc_op_e
{
gpc_or,
gpc_and,
gpc_xor,
gpc_a_minus_b,
gpc_b_minus_a
};
//================================================================conv_gpc //================================================================conv_gpc
template<class VSA, class VSB> template<class VSA, class VSB> class conv_gpc
class conv_gpc
{ {
enum status { status_move_to, status_line_to, status_stop }; enum status
{
status_move_to,
status_line_to,
status_stop
};
struct contour_header_type struct contour_header_type
{ {
@ -51,20 +65,24 @@ class conv_gpc
typedef pod_bvector<gpc_vertex, 8> vertex_array_type; typedef pod_bvector<gpc_vertex, 8> vertex_array_type;
typedef pod_bvector<contour_header_type, 6> contour_header_array_type; typedef pod_bvector<contour_header_type, 6> contour_header_array_type;
public: public:
typedef VSA source_a_type; typedef VSA source_a_type;
typedef VSB source_b_type; typedef VSB source_b_type;
typedef conv_gpc<source_a_type, source_b_type> self_type; typedef conv_gpc<source_a_type, source_b_type> self_type;
~conv_gpc() { free_gpc_data(); } ~conv_gpc()
{
free_gpc_data();
}
conv_gpc(source_a_type& a, source_b_type& b, gpc_op_e op = gpc_or) conv_gpc(source_a_type& a, source_b_type& b, gpc_op_e op = gpc_or) :
: m_src_a(&a) m_src_a(&a),
, m_src_b(&b) m_src_b(&b),
, m_status(status_move_to) m_status(status_move_to),
, m_vertex(-1) m_vertex(-1),
, m_contour(-1) m_contour(-1),
, m_operation(op) m_operation(op)
{ {
memset(&m_poly_a, 0, sizeof(m_poly_a)); memset(&m_poly_a, 0, sizeof(m_poly_a));
memset(&m_poly_b, 0, sizeof(m_poly_b)); memset(&m_poly_b, 0, sizeof(m_poly_b));
@ -96,9 +114,9 @@ class conv_gpc
bool next_contour(); bool next_contour();
bool next_vertex(double* x, double* y); bool next_vertex(double* x, double* y);
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class VS> template<class VS> void add(VS& src, gpc_polygon& p)
void add(VS& src, gpc_polygon& p)
{ {
unsigned cmd; unsigned cmd;
double x, y; double x, y;
@ -146,6 +164,7 @@ class conv_gpc
make_polygon(p); make_polygon(p);
} }
private: private:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
source_a_type* m_src_a; source_a_type* m_src_a;
@ -161,6 +180,10 @@ class conv_gpc
gpc_polygon m_result; gpc_polygon m_result;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::free_polygon(gpc_polygon& p) void conv_gpc<VSA, VSB>::free_polygon(gpc_polygon& p)
@ -168,12 +191,14 @@ void conv_gpc<VSA, VSB>::free_polygon(gpc_polygon& p)
int i; int i;
for(i = 0; i < p.num_contours; i++) for(i = 0; i < p.num_contours; i++)
{ {
pod_allocator<gpc_vertex>::deallocate(p.contour[i].vertex, p.contour[i].num_vertices); pod_allocator<gpc_vertex>::deallocate(p.contour[i].vertex,
p.contour[i].num_vertices);
} }
pod_allocator<gpc_vertex_list>::deallocate(p.contour, p.num_contours); pod_allocator<gpc_vertex_list>::deallocate(p.contour, p.num_contours);
memset(&p, 0, sizeof(gpc_polygon)); memset(&p, 0, sizeof(gpc_polygon));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::free_result() void conv_gpc<VSA, VSB>::free_result()
@ -185,6 +210,7 @@ void conv_gpc<VSA, VSB>::free_result()
memset(&m_result, 0, sizeof(m_result)); memset(&m_result, 0, sizeof(m_result));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::free_gpc_data() void conv_gpc<VSA, VSB>::free_gpc_data()
@ -194,6 +220,7 @@ void conv_gpc<VSA, VSB>::free_gpc_data()
free_result(); free_result();
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::start_contour() void conv_gpc<VSA, VSB>::start_contour()
@ -204,6 +231,7 @@ void conv_gpc<VSA, VSB>::start_contour()
m_vertex_accumulator.remove_all(); m_vertex_accumulator.remove_all();
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
inline void conv_gpc<VSA, VSB>::add_vertex(double x, double y) inline void conv_gpc<VSA, VSB>::add_vertex(double x, double y)
@ -214,6 +242,7 @@ inline void conv_gpc<VSA, VSB>::add_vertex(double x, double y)
m_vertex_accumulator.add(v); m_vertex_accumulator.add(v);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::end_contour(unsigned orientation) void conv_gpc<VSA, VSB>::end_contour(unsigned orientation)
@ -222,7 +251,8 @@ void conv_gpc<VSA, VSB>::end_contour(unsigned orientation)
{ {
if(m_vertex_accumulator.size() > 2) if(m_vertex_accumulator.size() > 2)
{ {
contour_header_type& h = m_contour_accumulator[m_contour_accumulator.size() - 1]; contour_header_type& h =
m_contour_accumulator[m_contour_accumulator.size() - 1];
h.num_vertices = m_vertex_accumulator.size(); h.num_vertices = m_vertex_accumulator.size();
h.hole_flag = 0; h.hole_flag = 0;
@ -248,6 +278,7 @@ void conv_gpc<VSA, VSB>::end_contour(unsigned orientation)
} }
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::make_polygon(gpc_polygon& p) void conv_gpc<VSA, VSB>::make_polygon(gpc_polygon& p)
@ -272,6 +303,7 @@ void conv_gpc<VSA, VSB>::make_polygon(gpc_polygon& p)
} }
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::start_extracting() void conv_gpc<VSA, VSB>::start_extracting()
@ -281,6 +313,7 @@ void conv_gpc<VSA, VSB>::start_extracting()
m_vertex = -1; m_vertex = -1;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
bool conv_gpc<VSA, VSB>::next_contour() bool conv_gpc<VSA, VSB>::next_contour()
@ -293,6 +326,7 @@ bool conv_gpc<VSA, VSB>::next_contour()
return false; return false;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
inline bool conv_gpc<VSA, VSB>::next_vertex(double* x, double* y) inline bool conv_gpc<VSA, VSB>::next_vertex(double* x, double* y)
@ -308,6 +342,7 @@ inline bool conv_gpc<VSA, VSB>::next_vertex(double* x, double* y)
return false; return false;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
void conv_gpc<VSA, VSB>::rewind(unsigned path_id) void conv_gpc<VSA, VSB>::rewind(unsigned path_id)
@ -320,28 +355,44 @@ void conv_gpc<VSA, VSB>::rewind(unsigned path_id)
switch(m_operation) switch(m_operation)
{ {
case gpc_or: case gpc_or:
gpc_polygon_clip(GPC_UNION, &m_poly_a, &m_poly_b, &m_result); gpc_polygon_clip(GPC_UNION,
&m_poly_a,
&m_poly_b,
&m_result);
break; break;
case gpc_and: case gpc_and:
gpc_polygon_clip(GPC_INT, &m_poly_a, &m_poly_b, &m_result); gpc_polygon_clip(GPC_INT,
&m_poly_a,
&m_poly_b,
&m_result);
break; break;
case gpc_xor: case gpc_xor:
gpc_polygon_clip(GPC_XOR, &m_poly_a, &m_poly_b, &m_result); gpc_polygon_clip(GPC_XOR,
&m_poly_a,
&m_poly_b,
&m_result);
break; break;
case gpc_a_minus_b: case gpc_a_minus_b:
gpc_polygon_clip(GPC_DIFF, &m_poly_a, &m_poly_b, &m_result); gpc_polygon_clip(GPC_DIFF,
&m_poly_a,
&m_poly_b,
&m_result);
break; break;
case gpc_b_minus_a: case gpc_b_minus_a:
gpc_polygon_clip(GPC_DIFF, &m_poly_b, &m_poly_a, &m_result); gpc_polygon_clip(GPC_DIFF,
&m_poly_b,
&m_poly_a,
&m_result);
break; break;
} }
start_extracting(); start_extracting();
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VSA, class VSB> template<class VSA, class VSB>
unsigned conv_gpc<VSA, VSB>::vertex(double* x, double* y) unsigned conv_gpc<VSA, VSB>::vertex(double* x, double* y)
@ -374,6 +425,8 @@ unsigned conv_gpc<VSA, VSB>::vertex(double* x, double* y)
return path_cmd_stop; return path_cmd_stop;
} }
} // namespace agg
}
#endif #endif

View file

@ -22,7 +22,8 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_trans_affine.h" #include "agg_trans_affine.h"
namespace agg { namespace agg
{
//-------------------------------------------------------------conv_marker //-------------------------------------------------------------conv_marker
template<class MarkerLocator, class MarkerShapes> template<class MarkerLocator, class MarkerShapes>
class conv_marker class conv_marker
@ -38,9 +39,16 @@ class conv_marker
private: private:
conv_marker(const conv_marker<MarkerLocator, MarkerShapes>&); conv_marker(const conv_marker<MarkerLocator, MarkerShapes>&);
const conv_marker<MarkerLocator, MarkerShapes>& operator=(const conv_marker<MarkerLocator, MarkerShapes>&); const conv_marker<MarkerLocator, MarkerShapes>&
operator = (const conv_marker<MarkerLocator, MarkerShapes>&);
enum status_e { initial, markers, polygon, stop }; enum status_e
{
initial,
markers,
polygon,
stop
};
MarkerLocator* m_marker_locator; MarkerLocator* m_marker_locator;
MarkerShapes* m_marker_shapes; MarkerShapes* m_marker_shapes;
@ -51,15 +59,18 @@ class conv_marker
unsigned m_num_markers; unsigned m_num_markers;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class MarkerLocator, class MarkerShapes> template<class MarkerLocator, class MarkerShapes>
conv_marker<MarkerLocator, MarkerShapes>::conv_marker(MarkerLocator& ml, MarkerShapes& ms) conv_marker<MarkerLocator, MarkerShapes>::conv_marker(MarkerLocator& ml, MarkerShapes& ms) :
: m_marker_locator(&ml) m_marker_locator(&ml),
, m_marker_shapes(&ms) m_marker_shapes(&ms),
, m_status(initial) m_status(initial),
, m_marker(0) m_marker(0),
, m_num_markers(1) m_num_markers(1)
{} {
}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class MarkerLocator, class MarkerShapes> template<class MarkerLocator, class MarkerShapes>
@ -70,6 +81,7 @@ void conv_marker<MarkerLocator, MarkerShapes>::rewind(unsigned)
m_num_markers = 1; m_num_markers = 1;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class MarkerLocator, class MarkerShapes> template<class MarkerLocator, class MarkerShapes>
unsigned conv_marker<MarkerLocator, MarkerShapes>::vertex(double* x, double* y) unsigned conv_marker<MarkerLocator, MarkerShapes>::vertex(double* x, double* y)
@ -129,6 +141,8 @@ unsigned conv_marker<MarkerLocator, MarkerShapes>::vertex(double* x, double* y)
return cmd; return cmd;
} }
} // namespace agg }
#endif #endif

View file

@ -20,27 +20,32 @@
#include "agg_conv_adaptor_vcgen.h" #include "agg_conv_adaptor_vcgen.h"
#include "agg_vcgen_vertex_sequence.h" #include "agg_vcgen_vertex_sequence.h"
namespace agg { namespace agg
{
//=====================================================conv_marker_adaptor //=====================================================conv_marker_adaptor
template<class VertexSource, class Markers=null_markers> template<class VertexSource, class Markers=null_markers>
struct conv_marker_adaptor : public conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence, Markers> struct conv_marker_adaptor :
public conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence, Markers>
{ {
typedef Markers marker_type; typedef Markers marker_type;
typedef conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence, Markers> base_type; typedef conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence, Markers> base_type;
conv_marker_adaptor(VertexSource& vs) conv_marker_adaptor(VertexSource& vs) :
: conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence, Markers>(vs) conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence, Markers>(vs)
{} {
}
void shorten(double s) { base_type::generator().shorten(s); } void shorten(double s) { base_type::generator().shorten(s); }
double shorten() const { return base_type::generator().shorten(); } double shorten() const { return base_type::generator().shorten(); }
private: private:
conv_marker_adaptor(const conv_marker_adaptor<VertexSource, Markers>&); conv_marker_adaptor(const conv_marker_adaptor<VertexSource, Markers>&);
const conv_marker_adaptor<VertexSource, Markers>& operator=(const conv_marker_adaptor<VertexSource, Markers>&); const conv_marker_adaptor<VertexSource, Markers>&
operator = (const conv_marker_adaptor<VertexSource, Markers>&);
}; };
} // namespace agg
}
#endif #endif

View file

@ -22,10 +22,10 @@
#include "agg_array.h" #include "agg_array.h"
#include "clipper.hpp" #include "clipper.hpp"
namespace agg { namespace agg
{
template<class VSA> template<class VSA> class conv_offset
class conv_offset
{ {
enum status { status_move_to, status_line_to, status_stop }; enum status { status_move_to, status_line_to, status_stop };
typedef VSA source_a_type; typedef VSA source_a_type;
@ -45,30 +45,36 @@ class conv_offset
int Round(double val) int Round(double val)
{ {
if ((val < 0)) if ((val < 0)) return (int)(val - 0.5); else return (int)(val + 0.5);
return (int)(val - 0.5);
else
return (int)(val + 0.5);
} }
public: public:
conv_offset(source_a_type& a, double offset = 0.0, int scaling_factor = 0) conv_offset(source_a_type &a, double offset = 0.0,
: m_src_a(&a) int scaling_factor = 0)
, m_offset(offset) : m_src_a(&a),
, m_status(status_move_to) m_offset(offset),
, m_vertex(-1) m_status(status_move_to),
, m_contour(-1) m_vertex(-1),
m_contour(-1)
{ {
m_scaling_factor = std::max(std::min(scaling_factor, 6),0); m_scaling_factor = std::max(std::min(scaling_factor, 6),0);
m_scaling_factor = Round(std::pow((double)10, m_scaling_factor)); m_scaling_factor = Round(std::pow((double)10, m_scaling_factor));
} }
~conv_offset() {} ~conv_offset()
{
}
void set_offset(double offset) { m_offset = offset;} void set_offset(double offset) { m_offset = offset;}
unsigned type() const { return static_cast<unsigned>(m_src_a->type()); } unsigned type() const
{
return static_cast<unsigned>(m_src_a->type());
}
double get_offset() const { return m_offset; } double get_offset() const
{
return m_offset;
}
void rewind(unsigned path_id); void rewind(unsigned path_id);
unsigned vertex(double* x, double* y); unsigned vertex(double* x, double* y);
@ -79,14 +85,10 @@ class conv_offset
void add_vertex_(double &x, double &y); void add_vertex_(double &x, double &y);
void end_contour(ClipperLib::Paths &p); void end_contour(ClipperLib::Paths &p);
template<class VS> template<class VS> void add(VS &src, ClipperLib::Paths &p)
void add(VS& src, ClipperLib::Paths& p)
{ {
unsigned cmd; unsigned cmd;
double x; double x; double y; double start_x; double start_y;
double y;
double start_x;
double start_y;
bool starting_first_line; bool starting_first_line;
start_x = 0.0; start_x = 0.0;
@ -101,8 +103,7 @@ class conv_offset
{ {
if(is_move_to(cmd)) if(is_move_to(cmd))
{ {
if (!starting_first_line) if(!starting_first_line ) end_contour(p);
end_contour(p);
start_x = x; start_x = x;
start_y = y; start_y = y;
} }
@ -152,8 +153,7 @@ void conv_offset<VSA>::end_contour(ClipperLib::Paths& p)
{ {
unsigned i, len; unsigned i, len;
if (m_vertex_accumulator.size() < 3) if( m_vertex_accumulator.size() < 3 ) return;
return;
len = p.size(); len = p.size();
p.resize(len+1); p.resize(len+1);
p[len].resize(m_vertex_accumulator.size()); p[len].resize(m_vertex_accumulator.size());
@ -178,8 +178,7 @@ template<class VSA>
bool conv_offset<VSA>::next_contour() bool conv_offset<VSA>::next_contour()
{ {
m_contour++; m_contour++;
if (m_contour >= (int)m_result.size()) if(m_contour >= (int)m_result.size()) return false;
return false;
m_vertex =-1; m_vertex =-1;
return true; return true;
} }
@ -189,8 +188,7 @@ template<class VSA>
bool conv_offset<VSA>::next_vertex(double *x, double *y) bool conv_offset<VSA>::next_vertex(double *x, double *y)
{ {
m_vertex++; m_vertex++;
if (m_vertex >= (int)m_result[m_contour].size()) if(m_vertex >= (int)m_result[m_contour].size()) return false;
return false;
*x = (double)m_result[ m_contour ][ m_vertex ].X / m_scaling_factor; *x = (double)m_result[ m_contour ][ m_vertex ].X / m_scaling_factor;
*y = (double)m_result[ m_contour ][ m_vertex ].Y / m_scaling_factor; *y = (double)m_result[ m_contour ][ m_vertex ].Y / m_scaling_factor;
return true; return true;
@ -233,5 +231,6 @@ unsigned conv_offset<VSA>::vertex(double* x, double* y)
} }
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
} //namespace agg } //namespace agg
#endif //AGG_CONV_OFFSET_INCLUDED #endif //AGG_CONV_OFFSET_INCLUDED

View file

@ -20,7 +20,8 @@
#include "agg_conv_adaptor_vpgen.h" #include "agg_conv_adaptor_vpgen.h"
#include "agg_vpgen_segmentator.h" #include "agg_vpgen_segmentator.h"
namespace agg { namespace agg
{
//========================================================conv_segmentator //========================================================conv_segmentator
template<class VertexSource> template<class VertexSource>
@ -28,18 +29,20 @@ struct conv_segmentator : public conv_adaptor_vpgen<VertexSource, vpgen_segmenta
{ {
typedef conv_adaptor_vpgen<VertexSource, vpgen_segmentator> base_type; typedef conv_adaptor_vpgen<VertexSource, vpgen_segmentator> base_type;
conv_segmentator(VertexSource& vs) conv_segmentator(VertexSource& vs) :
: conv_adaptor_vpgen<VertexSource, vpgen_segmentator>(vs) conv_adaptor_vpgen<VertexSource, vpgen_segmentator>(vs) {}
{}
void approximation_scale(double s) { base_type::vpgen().approximation_scale(s); } void approximation_scale(double s) { base_type::vpgen().approximation_scale(s); }
double approximation_scale() const { return base_type::vpgen().approximation_scale(); } double approximation_scale() const { return base_type::vpgen().approximation_scale(); }
private: private:
conv_segmentator(const conv_segmentator<VertexSource>&); conv_segmentator(const conv_segmentator<VertexSource>&);
const conv_segmentator<VertexSource>& operator=(const conv_segmentator<VertexSource>&); const conv_segmentator<VertexSource>&
operator = (const conv_segmentator<VertexSource>&);
}; };
} // namespace agg
}
#endif #endif

View file

@ -20,27 +20,31 @@
#include "agg_conv_adaptor_vcgen.h" #include "agg_conv_adaptor_vcgen.h"
#include "agg_vcgen_vertex_sequence.h" #include "agg_vcgen_vertex_sequence.h"
namespace agg { namespace agg
{
//=======================================================conv_shorten_path //=======================================================conv_shorten_path
template<class VertexSource> template<class VertexSource> class conv_shorten_path :
class conv_shorten_path : public conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence> public conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence>
{ {
public: public:
typedef conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence> base_type; typedef conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence> base_type;
conv_shorten_path(VertexSource& vs) conv_shorten_path(VertexSource& vs) :
: conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence>(vs) conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence>(vs)
{} {
}
void shorten(double s) { base_type::generator().shorten(s); } void shorten(double s) { base_type::generator().shorten(s); }
double shorten() const { return base_type::generator().shorten(); } double shorten() const { return base_type::generator().shorten(); }
private: private:
conv_shorten_path(const conv_shorten_path<VertexSource>&); conv_shorten_path(const conv_shorten_path<VertexSource>&);
const conv_shorten_path<VertexSource>& operator=(const conv_shorten_path<VertexSource>&); const conv_shorten_path<VertexSource>&
operator = (const conv_shorten_path<VertexSource>&);
}; };
} // namespace agg
}
#endif #endif

View file

@ -24,17 +24,21 @@
#include "agg_conv_adaptor_vcgen.h" #include "agg_conv_adaptor_vcgen.h"
#include "agg_conv_curve.h" #include "agg_conv_curve.h"
namespace agg {
namespace agg
{
//-------------------------------------------------------conv_smooth //-------------------------------------------------------conv_smooth
template<class VertexSource, class VertexGenerator> template<class VertexSource, class VertexGenerator>
struct conv_smooth : public conv_adaptor_vcgen<VertexSource, VertexGenerator> struct conv_smooth :
public conv_adaptor_vcgen<VertexSource, VertexGenerator>
{ {
typedef conv_adaptor_vcgen<VertexSource, VertexGenerator> base_type; typedef conv_adaptor_vcgen<VertexSource, VertexGenerator> base_type;
conv_smooth(VertexSource& vs) conv_smooth(VertexSource& vs) :
: conv_adaptor_vcgen<VertexSource, VertexGenerator>(vs) conv_adaptor_vcgen<VertexSource, VertexGenerator>(vs)
{} {
}
conv_smooth(conv_smooth<VertexSource, VertexGenerator> &&) = default; conv_smooth(conv_smooth<VertexSource, VertexGenerator> &&) = default;
@ -52,16 +56,18 @@ using conv_smooth_poly1 = conv_smooth<VertexSource, vcgen_smooth_poly1>;
//-------------------------------------------------conv_smooth_curve //-------------------------------------------------conv_smooth_curve
template<class VertexSource, class VertexGenerator> template<class VertexSource, class VertexGenerator>
struct conv_smooth_curve : public conv_curve<conv_smooth<VertexSource, VertexGenerator>> struct conv_smooth_curve :
public conv_curve<conv_smooth<VertexSource, VertexGenerator>>
{ {
conv_smooth_curve(VertexSource& vs) conv_smooth_curve(VertexSource& vs) :
: conv_curve<conv_smooth<VertexSource, VertexGenerator>>(m_smooth) conv_curve<conv_smooth<VertexSource, VertexGenerator>>(m_smooth),
, m_smooth(vs) m_smooth(vs)
{} {
}
conv_smooth_curve(conv_smooth_curve<VertexSource, VertexGenerator>&& rhs) conv_smooth_curve(conv_smooth_curve<VertexSource, VertexGenerator> && rhs) :
: conv_curve<conv_smooth<VertexSource, VertexGenerator>>(std::move(rhs)) conv_curve<conv_smooth<VertexSource, VertexGenerator>>(std::move(rhs)),
, m_smooth(std::move(rhs.m_smooth)) m_smooth(std::move(rhs.m_smooth))
{ {
this->attach(m_smooth); this->attach(m_smooth);
} }
@ -80,6 +86,8 @@ struct conv_smooth_curve : public conv_curve<conv_smooth<VertexSource, VertexGen
template<class VertexSource> template<class VertexSource>
using conv_smooth_poly1_curve = conv_smooth_curve<VertexSource, vcgen_smooth_poly1>; using conv_smooth_poly1_curve = conv_smooth_curve<VertexSource, vcgen_smooth_poly1>;
} // namespace agg }
#endif #endif

View file

@ -23,18 +23,21 @@
#include "agg_vcgen_stroke.h" #include "agg_vcgen_stroke.h"
#include "agg_conv_adaptor_vcgen.h" #include "agg_conv_adaptor_vcgen.h"
namespace agg { namespace agg
{
//-------------------------------------------------------------conv_stroke //-------------------------------------------------------------conv_stroke
template<class VertexSource, class Markers=null_markers> template<class VertexSource, class Markers=null_markers>
struct conv_stroke : public conv_adaptor_vcgen<VertexSource, vcgen_stroke, Markers> struct conv_stroke :
public conv_adaptor_vcgen<VertexSource, vcgen_stroke, Markers>
{ {
typedef Markers marker_type; typedef Markers marker_type;
typedef conv_adaptor_vcgen<VertexSource, vcgen_stroke, Markers> base_type; typedef conv_adaptor_vcgen<VertexSource, vcgen_stroke, Markers> base_type;
conv_stroke(VertexSource& vs) conv_stroke(VertexSource& vs) :
: conv_adaptor_vcgen<VertexSource, vcgen_stroke, Markers>(vs) conv_adaptor_vcgen<VertexSource, vcgen_stroke, Markers>(vs)
{} {
}
void line_cap(line_cap_e lc) { base_type::generator().line_cap(lc); } void line_cap(line_cap_e lc) { base_type::generator().line_cap(lc); }
void line_join(line_join_e lj) { base_type::generator().line_join(lj); } void line_join(line_join_e lj) { base_type::generator().line_join(lj); }
@ -60,9 +63,11 @@ struct conv_stroke : public conv_adaptor_vcgen<VertexSource, vcgen_stroke, Marke
private: private:
conv_stroke(const conv_stroke<VertexSource, Markers>&); conv_stroke(const conv_stroke<VertexSource, Markers>&);
const conv_stroke<VertexSource, Markers>& operator=(const conv_stroke<VertexSource, Markers>&); const conv_stroke<VertexSource, Markers>&
operator = (const conv_stroke<VertexSource, Markers>&);
}; };
} // namespace agg }
#endif #endif

View file

@ -22,21 +22,22 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_trans_affine.h" #include "agg_trans_affine.h"
namespace agg { namespace agg
{
//----------------------------------------------------------conv_transform //----------------------------------------------------------conv_transform
template<class VertexSource, class Transformer = trans_affine> template<class VertexSource, class Transformer=trans_affine> class conv_transform
class conv_transform
{ {
public: public:
conv_transform(VertexSource& source, Transformer& tr) conv_transform(VertexSource& source, Transformer& tr) :
: m_source(&source) m_source(&source), m_trans(&tr) {}
, m_trans(&tr)
{}
void attach(VertexSource& source) { m_source = &source; } void attach(VertexSource& source) { m_source = &source; }
void rewind(unsigned path_id) { m_source->rewind(path_id); } void rewind(unsigned path_id)
{
m_source->rewind(path_id);
}
unsigned vertex(double* x, double* y) unsigned vertex(double* x, double* y)
{ {
@ -48,18 +49,23 @@ class conv_transform
return cmd; return cmd;
} }
void transformer(Transformer& tr) { m_trans = &tr; } void transformer(Transformer& tr)
{
m_trans = &tr;
}
unsigned type() const { return m_source->type(); } unsigned type() const { return m_source->type(); }
private: private:
conv_transform(const conv_transform<VertexSource>&); conv_transform(const conv_transform<VertexSource>&);
const conv_transform<VertexSource>& operator=(const conv_transform<VertexSource>&); const conv_transform<VertexSource>&
operator = (const conv_transform<VertexSource>&);
VertexSource* m_source; VertexSource* m_source;
const Transformer* m_trans; const Transformer* m_trans;
}; };
} // namespace agg
}
#endif #endif

View file

@ -18,34 +18,35 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//====================================================conv_unclose_polygon //====================================================conv_unclose_polygon
template<class VertexSource> template<class VertexSource> class conv_unclose_polygon
class conv_unclose_polygon
{ {
public: public:
explicit conv_unclose_polygon(VertexSource& vs) explicit conv_unclose_polygon(VertexSource& vs) : m_source(&vs) {}
: m_source(&vs)
{}
void attach(VertexSource& source) { m_source = &source; } void attach(VertexSource& source) { m_source = &source; }
void rewind(unsigned path_id) { m_source->rewind(path_id); } void rewind(unsigned path_id)
{
m_source->rewind(path_id);
}
unsigned vertex(double* x, double* y) unsigned vertex(double* x, double* y)
{ {
unsigned cmd = m_source->vertex(x, y); unsigned cmd = m_source->vertex(x, y);
if (is_end_poly(cmd)) if(is_end_poly(cmd)) cmd &= ~path_flags_close;
cmd &= ~path_flags_close;
return cmd; return cmd;
} }
private: private:
conv_unclose_polygon(const conv_unclose_polygon<VertexSource>&); conv_unclose_polygon(const conv_unclose_polygon<VertexSource>&);
const conv_unclose_polygon<VertexSource>& operator=(const conv_unclose_polygon<VertexSource>&); const conv_unclose_polygon<VertexSource>&
operator = (const conv_unclose_polygon<VertexSource>&);
VertexSource* m_source; VertexSource* m_source;
}; };
} // namespace agg }
#endif #endif

View file

@ -21,37 +21,37 @@
#include <mapnik/config.hpp> #include <mapnik/config.hpp>
namespace agg { namespace agg
{
// See Implementation agg_curves.cpp // See Implementation agg_curves.cpp
//--------------------------------------------curve_approximation_method_e //--------------------------------------------curve_approximation_method_e
enum curve_approximation_method_e { curve_inc, curve_div }; enum curve_approximation_method_e
{
curve_inc,
curve_div
};
//--------------------------------------------------------------curve3_inc //--------------------------------------------------------------curve3_inc
class MAPNIK_DECL curve3_inc class MAPNIK_DECL curve3_inc
{ {
public: public:
curve3_inc() curve3_inc() :
: m_num_steps(0) m_num_steps(0), m_step(0), m_scale(1.0) { }
, m_step(0)
, m_scale(1.0)
{}
curve3_inc(double x1, double y1, double x2, double y2, double x3, double y3) curve3_inc(double x1, double y1,
: m_num_steps(0) double x2, double y2,
, m_step(0) double x3, double y3) :
, m_scale(1.0) m_num_steps(0), m_step(0), m_scale(1.0)
{ {
init(x1, y1, x2, y2, x3, y3); init(x1, y1, x2, y2, x3, y3);
} }
void reset() void reset() { m_num_steps = 0; m_step = -1; }
{ void init(double x1, double y1,
m_num_steps = 0; double x2, double y2,
m_step = -1; double x3, double y3);
}
void init(double x1, double y1, double x2, double y2, double x3, double y3);
void approximation_method(curve_approximation_method_e) {} void approximation_method(curve_approximation_method_e) {}
curve_approximation_method_e approximation_method() const { return curve_inc; } curve_approximation_method_e approximation_method() const { return curve_inc; }
@ -88,30 +88,34 @@ class MAPNIK_DECL curve3_inc
double m_saved_dfy; double m_saved_dfy;
}; };
//-------------------------------------------------------------curve3_div //-------------------------------------------------------------curve3_div
class MAPNIK_DECL curve3_div class MAPNIK_DECL curve3_div
{ {
public: public:
curve3_div() curve3_div() :
: m_approximation_scale(1.0) m_approximation_scale(1.0),
, m_angle_tolerance(0.0) m_angle_tolerance(0.0),
, m_count(0) m_count(0)
{} {}
curve3_div(double x1, double y1, double x2, double y2, double x3, double y3) curve3_div(double x1, double y1,
: m_approximation_scale(1.0) double x2, double y2,
, m_angle_tolerance(0.0) double x3, double y3) :
, m_count(0) m_approximation_scale(1.0),
m_angle_tolerance(0.0),
m_count(0)
{ {
init(x1, y1, x2, y2, x3, y3); init(x1, y1, x2, y2, x3, y3);
} }
void reset() void reset() { m_points.remove_all(); m_count = 0; }
{ void init(double x1, double y1,
m_points.remove_all(); double x2, double y2,
m_count = 0; double x3, double y3);
}
void init(double x1, double y1, double x2, double y2, double x3, double y3);
void approximation_method(curve_approximation_method_e) {} void approximation_method(curve_approximation_method_e) {}
curve_approximation_method_e approximation_method() const { return curve_div; } curve_approximation_method_e approximation_method() const { return curve_div; }
@ -125,12 +129,14 @@ class MAPNIK_DECL curve3_div
void cusp_limit(double) {} void cusp_limit(double) {}
double cusp_limit() const { return 0.0; } double cusp_limit() const { return 0.0; }
void rewind(unsigned) { m_count = 0; } void rewind(unsigned)
{
m_count = 0;
}
unsigned vertex(double* x, double* y) unsigned vertex(double* x, double* y)
{ {
if (m_count >= m_points.size()) if(m_count >= m_points.size()) return path_cmd_stop;
return path_cmd_stop;
const point_d& p = m_points[m_count++]; const point_d& p = m_points[m_count++];
*x = p.x; *x = p.x;
*y = p.y; *y = p.y;
@ -138,8 +144,13 @@ class MAPNIK_DECL curve3_div
} }
private: private:
void bezier(double x1, double y1, double x2, double y2, double x3, double y3); void bezier(double x1, double y1,
void recursive_bezier(double x1, double y1, double x2, double y2, double x3, double y3, unsigned level); double x2, double y2,
double x3, double y3);
void recursive_bezier(double x1, double y1,
double x2, double y2,
double x3, double y3,
unsigned level);
double m_approximation_scale; double m_approximation_scale;
double m_distance_tolerance_square; double m_distance_tolerance_square;
@ -148,71 +159,71 @@ class MAPNIK_DECL curve3_div
pod_bvector<point_d> m_points; pod_bvector<point_d> m_points;
}; };
//-------------------------------------------------------------curve4_points //-------------------------------------------------------------curve4_points
struct MAPNIK_DECL curve4_points struct MAPNIK_DECL curve4_points
{ {
double cp[8]; double cp[8];
curve4_points() {} curve4_points() {}
curve4_points(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) curve4_points(double x1, double y1,
double x2, double y2,
double x3, double y3,
double x4, double y4)
{ {
cp[0] = x1; cp[0] = x1; cp[1] = y1; cp[2] = x2; cp[3] = y2;
cp[1] = y1; cp[4] = x3; cp[5] = y3; cp[6] = x4; cp[7] = y4;
cp[2] = x2;
cp[3] = y2;
cp[4] = x3;
cp[5] = y3;
cp[6] = x4;
cp[7] = y4;
} }
void init(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) void init(double x1, double y1,
double x2, double y2,
double x3, double y3,
double x4, double y4)
{ {
cp[0] = x1; cp[0] = x1; cp[1] = y1; cp[2] = x2; cp[3] = y2;
cp[1] = y1; cp[4] = x3; cp[5] = y3; cp[6] = x4; cp[7] = y4;
cp[2] = x2;
cp[3] = y2;
cp[4] = x3;
cp[5] = y3;
cp[6] = x4;
cp[7] = y4;
} }
double operator [] (unsigned i) const { return cp[i]; } double operator [] (unsigned i) const { return cp[i]; }
double& operator [] (unsigned i) { return cp[i]; } double& operator [] (unsigned i) { return cp[i]; }
}; };
//-------------------------------------------------------------curve4_inc //-------------------------------------------------------------curve4_inc
class MAPNIK_DECL curve4_inc class MAPNIK_DECL curve4_inc
{ {
public: public:
curve4_inc() curve4_inc() :
: m_num_steps(0) m_num_steps(0), m_step(0), m_scale(1.0) { }
, m_step(0)
, m_scale(1.0)
{}
curve4_inc(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) curve4_inc(double x1, double y1,
: m_num_steps(0) double x2, double y2,
, m_step(0) double x3, double y3,
, m_scale(1.0) double x4, double y4) :
m_num_steps(0), m_step(0), m_scale(1.0)
{ {
init(x1, y1, x2, y2, x3, y3, x4, y4); init(x1, y1, x2, y2, x3, y3, x4, y4);
} }
curve4_inc(const curve4_points& cp) curve4_inc(const curve4_points& cp) :
: m_num_steps(0) m_num_steps(0), m_step(0), m_scale(1.0)
, m_step(0)
, m_scale(1.0)
{ {
init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
} }
void reset() void reset() { m_num_steps = 0; m_step = -1; }
{ void init(double x1, double y1,
m_num_steps = 0; double x2, double y2,
m_step = -1; double x3, double y3,
} double x4, double y4);
void init(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4);
void init(const curve4_points& cp) { init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); } void init(const curve4_points& cp)
{
init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
}
void approximation_method(curve_approximation_method_e) {} void approximation_method(curve_approximation_method_e) {}
curve_approximation_method_e approximation_method() const { return curve_inc; } curve_approximation_method_e approximation_method() const { return curve_inc; }
@ -253,9 +264,13 @@ class MAPNIK_DECL curve4_inc
double m_saved_ddfy; double m_saved_ddfy;
}; };
//-------------------------------------------------------catrom_to_bezier //-------------------------------------------------------catrom_to_bezier
inline curve4_points inline curve4_points catrom_to_bezier(double x1, double y1,
catrom_to_bezier(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) double x2, double y2,
double x3, double y3,
double x4, double y4)
{ {
// Trans. matrix Catmull-Rom to Bezier // Trans. matrix Catmull-Rom to Bezier
// //
@ -264,7 +279,8 @@ inline curve4_points
// 0 1/6 1 -1/6 // 0 1/6 1 -1/6
// 0 0 1 0 // 0 0 1 0
// //
return curve4_points(x2, return curve4_points(
x2,
y2, y2,
(-x1 + 6*x2 + x3) / 6, (-x1 + 6*x2 + x3) / 6,
(-y1 + 6*y2 + y3) / 6, (-y1 + 6*y2 + y3) / 6,
@ -274,15 +290,22 @@ inline curve4_points
y3); y3);
} }
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
inline curve4_points catrom_to_bezier(const curve4_points& cp) inline curve4_points
catrom_to_bezier(const curve4_points& cp)
{ {
return catrom_to_bezier(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); return catrom_to_bezier(cp[0], cp[1], cp[2], cp[3],
cp[4], cp[5], cp[6], cp[7]);
} }
//-----------------------------------------------------ubspline_to_bezier //-----------------------------------------------------ubspline_to_bezier
inline curve4_points inline curve4_points ubspline_to_bezier(double x1, double y1,
ubspline_to_bezier(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) double x2, double y2,
double x3, double y3,
double x4, double y4)
{ {
// Trans. matrix Uniform BSpline to Bezier // Trans. matrix Uniform BSpline to Bezier
// //
@ -291,7 +314,8 @@ inline curve4_points
// 0 2/6 4/6 0 // 0 2/6 4/6 0
// 0 1/6 4/6 1/6 // 0 1/6 4/6 1/6
// //
return curve4_points((x1 + 4 * x2 + x3) / 6, return curve4_points(
(x1 + 4*x2 + x3) / 6,
(y1 + 4*y2 + y3) / 6, (y1 + 4*y2 + y3) / 6,
(4*x2 + 2*x3) / 6, (4*x2 + 2*x3) / 6,
(4*y2 + 2*y3) / 6, (4*y2 + 2*y3) / 6,
@ -301,15 +325,23 @@ inline curve4_points
(y2 + 4*y3 + y4) / 6); (y2 + 4*y3 + y4) / 6);
} }
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
inline curve4_points ubspline_to_bezier(const curve4_points& cp) inline curve4_points
ubspline_to_bezier(const curve4_points& cp)
{ {
return ubspline_to_bezier(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); return ubspline_to_bezier(cp[0], cp[1], cp[2], cp[3],
cp[4], cp[5], cp[6], cp[7]);
} }
//------------------------------------------------------hermite_to_bezier //------------------------------------------------------hermite_to_bezier
inline curve4_points inline curve4_points hermite_to_bezier(double x1, double y1,
hermite_to_bezier(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) double x2, double y2,
double x3, double y3,
double x4, double y4)
{ {
// Trans. matrix Hermite to Bezier // Trans. matrix Hermite to Bezier
// //
@ -318,55 +350,76 @@ inline curve4_points
// 0 1 0 -1/3 // 0 1 0 -1/3
// 0 1 0 0 // 0 1 0 0
// //
return curve4_points(x1, y1, (3 * x1 + x3) / 3, (3 * y1 + y3) / 3, (3 * x2 - x4) / 3, (3 * y2 - y4) / 3, x2, y2); return curve4_points(
x1,
y1,
(3*x1 + x3) / 3,
(3*y1 + y3) / 3,
(3*x2 - x4) / 3,
(3*y2 - y4) / 3,
x2,
y2);
} }
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
inline curve4_points hermite_to_bezier(const curve4_points& cp) inline curve4_points
hermite_to_bezier(const curve4_points& cp)
{ {
return hermite_to_bezier(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); return hermite_to_bezier(cp[0], cp[1], cp[2], cp[3],
cp[4], cp[5], cp[6], cp[7]);
} }
//-------------------------------------------------------------curve4_div //-------------------------------------------------------------curve4_div
class MAPNIK_DECL curve4_div class MAPNIK_DECL curve4_div
{ {
public: public:
curve4_div() curve4_div() :
: m_approximation_scale(1.0) m_approximation_scale(1.0),
, m_angle_tolerance(0.0) m_angle_tolerance(0.0),
, m_cusp_limit(0.0) m_cusp_limit(0.0),
, m_count(0) m_count(0)
{} {}
curve4_div(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) curve4_div(double x1, double y1,
: m_approximation_scale(1.0) double x2, double y2,
, m_angle_tolerance(0.0) double x3, double y3,
, m_cusp_limit(0.0) double x4, double y4) :
, m_count(0) m_approximation_scale(1.0),
m_angle_tolerance(0.0),
m_cusp_limit(0.0),
m_count(0)
{ {
init(x1, y1, x2, y2, x3, y3, x4, y4); init(x1, y1, x2, y2, x3, y3, x4, y4);
} }
curve4_div(const curve4_points& cp) curve4_div(const curve4_points& cp) :
: m_approximation_scale(1.0) m_approximation_scale(1.0),
, m_angle_tolerance(0.0) m_angle_tolerance(0.0),
, m_count(0) m_count(0)
{ {
init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
} }
void reset() void reset() { m_points.remove_all(); m_count = 0; }
{ void init(double x1, double y1,
m_points.remove_all(); double x2, double y2,
m_count = 0; double x3, double y3,
} double x4, double y4);
void init(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4);
void init(const curve4_points& cp) { init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); } void init(const curve4_points& cp)
{
init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
}
void approximation_method(curve_approximation_method_e) {} void approximation_method(curve_approximation_method_e) {}
curve_approximation_method_e approximation_method() const { return curve_div; } curve_approximation_method_e approximation_method() const
{
return curve_div;
}
void approximation_scale(double s) { m_approximation_scale = s; } void approximation_scale(double s) { m_approximation_scale = s; }
double approximation_scale() const { return m_approximation_scale; } double approximation_scale() const { return m_approximation_scale; }
@ -374,16 +427,24 @@ class MAPNIK_DECL curve4_div
void angle_tolerance(double a) { m_angle_tolerance = a; } void angle_tolerance(double a) { m_angle_tolerance = a; }
double angle_tolerance() const { return m_angle_tolerance; } double angle_tolerance() const { return m_angle_tolerance; }
void cusp_limit(double v) { m_cusp_limit = (v == 0.0) ? 0.0 : pi - v; } void cusp_limit(double v)
{
m_cusp_limit = (v == 0.0) ? 0.0 : pi - v;
}
double cusp_limit() const { return (m_cusp_limit == 0.0) ? 0.0 : pi - m_cusp_limit; } double cusp_limit() const
{
return (m_cusp_limit == 0.0) ? 0.0 : pi - m_cusp_limit;
}
void rewind(unsigned) { m_count = 0; } void rewind(unsigned)
{
m_count = 0;
}
unsigned vertex(double* x, double* y) unsigned vertex(double* x, double* y)
{ {
if (m_count >= m_points.size()) if(m_count >= m_points.size()) return path_cmd_stop;
return path_cmd_stop;
const point_d& p = m_points[m_count++]; const point_d& p = m_points[m_count++];
*x = p.x; *x = p.x;
*y = p.y; *y = p.y;
@ -391,16 +452,15 @@ class MAPNIK_DECL curve4_div
} }
private: private:
void bezier(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4); void bezier(double x1, double y1,
double x2, double y2,
double x3, double y3,
double x4, double y4);
void recursive_bezier(double x1, void recursive_bezier(double x1, double y1,
double y1, double x2, double y2,
double x2, double x3, double y3,
double y2, double x4, double y4,
double x3,
double y3,
double x4,
double y4,
unsigned level); unsigned level);
double m_approximation_scale; double m_approximation_scale;
@ -411,15 +471,16 @@ class MAPNIK_DECL curve4_div
pod_bvector<point_d> m_points; pod_bvector<point_d> m_points;
}; };
//-----------------------------------------------------------------curve3 //-----------------------------------------------------------------curve3
class MAPNIK_DECL curve3 class MAPNIK_DECL curve3
{ {
public: public:
curve3() curve3() : m_approximation_method(curve_div) {}
: m_approximation_method(curve_div) curve3(double x1, double y1,
{} double x2, double y2,
curve3(double x1, double y1, double x2, double y2, double x3, double y3) double x3, double y3) :
: m_approximation_method(curve_div) m_approximation_method(curve_div)
{ {
init(x1, y1, x2, y2, x3, y3); init(x1, y1, x2, y2, x3, y3);
} }
@ -430,7 +491,9 @@ class MAPNIK_DECL curve3
m_curve_div.reset(); m_curve_div.reset();
} }
void init(double x1, double y1, double x2, double y2, double x3, double y3) void init(double x1, double y1,
double x2, double y2,
double x3, double y3)
{ {
if(m_approximation_method == curve_inc) if(m_approximation_method == curve_inc)
{ {
@ -442,9 +505,15 @@ class MAPNIK_DECL curve3
} }
} }
void approximation_method(curve_approximation_method_e v) { m_approximation_method = v; } void approximation_method(curve_approximation_method_e v)
{
m_approximation_method = v;
}
curve_approximation_method_e approximation_method() const { return m_approximation_method; } curve_approximation_method_e approximation_method() const
{
return m_approximation_method;
}
void approximation_scale(double s) void approximation_scale(double s)
{ {
@ -452,15 +521,30 @@ class MAPNIK_DECL curve3
m_curve_div.approximation_scale(s); m_curve_div.approximation_scale(s);
} }
double approximation_scale() const { return m_curve_inc.approximation_scale(); } double approximation_scale() const
{
return m_curve_inc.approximation_scale();
}
void angle_tolerance(double a) { m_curve_div.angle_tolerance(a); } void angle_tolerance(double a)
{
m_curve_div.angle_tolerance(a);
}
double angle_tolerance() const { return m_curve_div.angle_tolerance(); } double angle_tolerance() const
{
return m_curve_div.angle_tolerance();
}
void cusp_limit(double v) { m_curve_div.cusp_limit(v); } void cusp_limit(double v)
{
m_curve_div.cusp_limit(v);
}
double cusp_limit() const { return m_curve_div.cusp_limit(); } double cusp_limit() const
{
return m_curve_div.cusp_limit();
}
void rewind(unsigned path_id) void rewind(unsigned path_id)
{ {
@ -489,21 +573,26 @@ class MAPNIK_DECL curve3
curve_approximation_method_e m_approximation_method; curve_approximation_method_e m_approximation_method;
}; };
//-----------------------------------------------------------------curve4 //-----------------------------------------------------------------curve4
class MAPNIK_DECL curve4 class MAPNIK_DECL curve4
{ {
public: public:
curve4() curve4() : m_approximation_method(curve_div) {}
: m_approximation_method(curve_div) curve4(double x1, double y1,
{} double x2, double y2,
curve4(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) double x3, double y3,
: m_approximation_method(curve_div) double x4, double y4) :
m_approximation_method(curve_div)
{ {
init(x1, y1, x2, y2, x3, y3, x4, y4); init(x1, y1, x2, y2, x3, y3, x4, y4);
} }
curve4(const curve4_points& cp) curve4(const curve4_points& cp) :
: m_approximation_method(curve_div) m_approximation_method(curve_div)
{ {
init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
} }
@ -514,7 +603,10 @@ class MAPNIK_DECL curve4
m_curve_div.reset(); m_curve_div.reset();
} }
void init(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) void init(double x1, double y1,
double x2, double y2,
double x3, double y3,
double x4, double y4)
{ {
if(m_approximation_method == curve_inc) if(m_approximation_method == curve_inc)
{ {
@ -526,11 +618,20 @@ class MAPNIK_DECL curve4
} }
} }
void init(const curve4_points& cp) { init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]); } void init(const curve4_points& cp)
{
init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
}
void approximation_method(curve_approximation_method_e v) { m_approximation_method = v; } void approximation_method(curve_approximation_method_e v)
{
m_approximation_method = v;
}
curve_approximation_method_e approximation_method() const { return m_approximation_method; } curve_approximation_method_e approximation_method() const
{
return m_approximation_method;
}
void approximation_scale(double s) void approximation_scale(double s)
{ {
@ -539,13 +640,25 @@ class MAPNIK_DECL curve4
} }
double approximation_scale() const { return m_curve_inc.approximation_scale(); } double approximation_scale() const { return m_curve_inc.approximation_scale(); }
void angle_tolerance(double v) { m_curve_div.angle_tolerance(v); } void angle_tolerance(double v)
{
m_curve_div.angle_tolerance(v);
}
double angle_tolerance() const { return m_curve_div.angle_tolerance(); } double angle_tolerance() const
{
return m_curve_div.angle_tolerance();
}
void cusp_limit(double v) { m_curve_div.cusp_limit(v); } void cusp_limit(double v)
{
m_curve_div.cusp_limit(v);
}
double cusp_limit() const { return m_curve_div.cusp_limit(); } double cusp_limit() const
{
return m_curve_div.cusp_limit();
}
void rewind(unsigned path_id) void rewind(unsigned path_id)
{ {
@ -574,6 +687,9 @@ class MAPNIK_DECL curve4
curve_approximation_method_e m_approximation_method; curve_approximation_method_e m_approximation_method;
}; };
} // namespace agg
}
#endif #endif

View file

@ -23,36 +23,49 @@
#include <cstdlib> #include <cstdlib>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//===================================================dda_line_interpolator //===================================================dda_line_interpolator
template<int FractionShift, int YShift = 0> template<int FractionShift, int YShift = 0> class dda_line_interpolator
class dda_line_interpolator
{ {
static constexpr int factor = 2 << (FractionShift - 1); static constexpr int factor = 2 << (FractionShift - 1);
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
dda_line_interpolator() {} dda_line_interpolator() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
dda_line_interpolator(int y1, int y2, unsigned count) dda_line_interpolator(int y1, int y2, unsigned count) :
: m_y(y1) m_y(y1),
, m_inc(((y2 - y1) * factor) / static_cast<int>(count)) m_inc(((y2 - y1) * factor) / static_cast<int>(count)),
, m_dy(0) m_dy(0)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void operator++() { m_dy += m_inc; } void operator ++ ()
{
m_dy += m_inc;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void operator--() { m_dy -= m_inc; } void operator -- ()
{
m_dy -= m_inc;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void operator+=(unsigned n) { m_dy += m_inc * n; } void operator += (unsigned n)
{
m_dy += m_inc * n;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void operator-=(unsigned n) { m_dy -= m_inc * n; } void operator -= (unsigned n)
{
m_dy -= m_inc * n;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
int y() const { return m_y + (m_dy >> (FractionShift - YShift)); } int y() const { return m_y + (m_dy >> (FractionShift - YShift)); }
@ -64,6 +77,10 @@ class dda_line_interpolator
int m_dy; int m_dy;
}; };
//=================================================dda2_line_interpolator //=================================================dda2_line_interpolator
class dda2_line_interpolator class dda2_line_interpolator
{ {
@ -75,12 +92,12 @@ class dda2_line_interpolator
dda2_line_interpolator() {} dda2_line_interpolator() {}
//-------------------------------------------- Forward-adjusted line //-------------------------------------------- Forward-adjusted line
dda2_line_interpolator(int y1, int y2, int count) dda2_line_interpolator(int y1, int y2, int count) :
: m_cnt(count <= 0 ? 1 : count) m_cnt(count <= 0 ? 1 : count),
, m_lft((y2 - y1) / m_cnt) m_lft((y2 - y1) / m_cnt),
, m_rem((y2 - y1) % m_cnt) m_rem((y2 - y1) % m_cnt),
, m_mod(m_rem) m_mod(m_rem),
, m_y(y1) m_y(y1)
{ {
if(m_mod <= 0) if(m_mod <= 0)
{ {
@ -92,12 +109,12 @@ class dda2_line_interpolator
} }
//-------------------------------------------- Backward-adjusted line //-------------------------------------------- Backward-adjusted line
dda2_line_interpolator(int y1, int y2, int count, int) dda2_line_interpolator(int y1, int y2, int count, int) :
: m_cnt(count <= 0 ? 1 : count) m_cnt(count <= 0 ? 1 : count),
, m_lft((y2 - y1) / m_cnt) m_lft((y2 - y1) / m_cnt),
, m_rem((y2 - y1) % m_cnt) m_rem((y2 - y1) % m_cnt),
, m_mod(m_rem) m_mod(m_rem),
, m_y(y1) m_y(y1)
{ {
if(m_mod <= 0) if(m_mod <= 0)
{ {
@ -108,12 +125,12 @@ class dda2_line_interpolator
} }
//-------------------------------------------- Backward-adjusted line //-------------------------------------------- Backward-adjusted line
dda2_line_interpolator(int y, int count) dda2_line_interpolator(int y, int count) :
: m_cnt(count <= 0 ? 1 : count) m_cnt(count <= 0 ? 1 : count),
, m_lft(y / m_cnt) m_lft(y / m_cnt),
, m_rem(y % m_cnt) m_rem(y % m_cnt),
, m_mod(m_rem) m_mod(m_rem),
, m_y(0) m_y(0)
{ {
if(m_mod <= 0) if(m_mod <= 0)
{ {
@ -123,6 +140,7 @@ class dda2_line_interpolator
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void save(save_data_type* data) const void save(save_data_type* data) const
{ {
@ -162,10 +180,16 @@ class dda2_line_interpolator
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void adjust_forward() { m_mod -= m_cnt; } void adjust_forward()
{
m_mod -= m_cnt;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void adjust_backward() { m_mod += m_cnt; } void adjust_backward()
{
m_mod += m_cnt;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
int mod() const { return m_mod; } int mod() const { return m_mod; }
@ -183,11 +207,18 @@ class dda2_line_interpolator
int m_y; int m_y;
}; };
//---------------------------------------------line_bresenham_interpolator //---------------------------------------------line_bresenham_interpolator
class line_bresenham_interpolator class line_bresenham_interpolator
{ {
public: public:
enum subpixel_scale_e { enum subpixel_scale_e
{
subpixel_shift = 8, subpixel_shift = 8,
subpixel_scale = 1 << subpixel_shift, subpixel_scale = 1 << subpixel_shift,
subpixel_mask = subpixel_scale - 1 subpixel_mask = subpixel_scale - 1
@ -197,16 +228,20 @@ class line_bresenham_interpolator
static int line_lr(int v) { return v >> subpixel_shift; } static int line_lr(int v) { return v >> subpixel_shift; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
line_bresenham_interpolator(int x1, int y1, int x2, int y2) line_bresenham_interpolator(int x1, int y1, int x2, int y2) :
: m_x1_lr(line_lr(x1)) m_x1_lr(line_lr(x1)),
, m_y1_lr(line_lr(y1)) m_y1_lr(line_lr(y1)),
, m_x2_lr(line_lr(x2)) m_x2_lr(line_lr(x2)),
, m_y2_lr(line_lr(y2)) m_y2_lr(line_lr(y2)),
, m_ver(std::abs(m_x2_lr - m_x1_lr) < std::abs(m_y2_lr - m_y1_lr)) m_ver(std::abs(m_x2_lr - m_x1_lr) < std::abs(m_y2_lr - m_y1_lr)),
, m_len(m_ver ? std::abs(m_y2_lr - m_y1_lr) : std::abs(m_x2_lr - m_x1_lr)) m_len(m_ver ? std::abs(m_y2_lr - m_y1_lr) :
, m_inc(m_ver ? ((y2 > y1) ? 1 : -1) : ((x2 > x1) ? 1 : -1)) std::abs(m_x2_lr - m_x1_lr)),
, m_interpolator(m_ver ? x1 : y1, m_ver ? x2 : y2, m_len) m_inc(m_ver ? ((y2 > y1) ? 1 : -1) : ((x2 > x1) ? 1 : -1)),
{} m_interpolator(m_ver ? x1 : y1,
m_ver ? x2 : y2,
m_len)
{
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
bool is_ver() const { return m_ver; } bool is_ver() const { return m_ver; }
@ -244,8 +279,12 @@ class line_bresenham_interpolator
unsigned m_len; unsigned m_len;
int m_inc; int m_inc;
dda2_line_interpolator m_interpolator; dda2_line_interpolator m_interpolator;
}; };
} // namespace agg
}
#endif #endif

View file

@ -23,38 +23,27 @@
#include "agg_basics.h" #include "agg_basics.h"
#include <cmath> #include <cmath>
namespace agg { namespace agg
{
//----------------------------------------------------------------ellipse //----------------------------------------------------------------ellipse
class ellipse class ellipse
{ {
public: public:
ellipse() ellipse() :
: m_x(0.0) m_x(0.0), m_y(0.0), m_rx(1.0), m_ry(1.0), m_scale(1.0),
, m_y(0.0) m_num(4), m_step(0), m_cw(false) {}
, m_rx(1.0)
, m_ry(1.0)
, m_scale(1.0)
, m_num(4)
, m_step(0)
, m_cw(false)
{}
ellipse(double x, double y, double rx, double ry, unsigned num_steps = 0, bool cw = false) ellipse(double x, double y, double rx, double ry,
: m_x(x) unsigned num_steps=0, bool cw=false) :
, m_y(y) m_x(x), m_y(y), m_rx(rx), m_ry(ry), m_scale(1.0),
, m_rx(rx) m_num(num_steps), m_step(0), m_cw(cw)
, m_ry(ry)
, m_scale(1.0)
, m_num(num_steps)
, m_step(0)
, m_cw(cw)
{ {
if (m_num == 0) if(m_num == 0) calc_num_steps();
calc_num_steps();
} }
void init(double x, double y, double rx, double ry, unsigned num_steps = 0, bool cw = false); void init(double x, double y, double rx, double ry,
unsigned num_steps=0, bool cw=false);
void approximation_scale(double scale); void approximation_scale(double scale);
void rewind(unsigned path_id); void rewind(unsigned path_id);
@ -75,7 +64,8 @@ class ellipse
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
inline void ellipse::init(double x, double y, double rx, double ry, unsigned num_steps, bool cw) inline void ellipse::init(double x, double y, double rx, double ry,
unsigned num_steps, bool cw)
{ {
m_x = x; m_x = x;
m_y = y; m_y = y;
@ -84,8 +74,7 @@ inline void ellipse::init(double x, double y, double rx, double ry, unsigned num
m_num = num_steps; m_num = num_steps;
m_step = 0; m_step = 0;
m_cw = cw; m_cw = cw;
if (m_num == 0) if(m_num == 0) calc_num_steps();
calc_num_steps();
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -117,17 +106,19 @@ inline unsigned ellipse::vertex(double* x, double* y)
++m_step; ++m_step;
return path_cmd_end_poly | path_flags_close | path_flags_ccw; return path_cmd_end_poly | path_flags_close | path_flags_ccw;
} }
if (m_step > m_num) if(m_step > m_num) return path_cmd_stop;
return path_cmd_stop;
double angle = double(m_step) / double(m_num) * 2.0 * pi; double angle = double(m_step) / double(m_num) * 2.0 * pi;
if (m_cw) if(m_cw) angle = 2.0 * pi - angle;
angle = 2.0 * pi - angle;
*x = m_x + std::cos(angle) * m_rx; *x = m_x + std::cos(angle) * m_rx;
*y = m_y + std::sin(angle) * m_ry; *y = m_y + std::sin(angle) * m_ry;
m_step++; m_step++;
return ((m_step == 1) ? path_cmd_move_to : path_cmd_line_to); return ((m_step == 1) ? path_cmd_move_to : path_cmd_line_to);
} }
} // namespace agg }
#endif #endif

View file

@ -20,24 +20,27 @@
#ifndef AGG_ELLIPSE_BRESENHAM_INCLUDED #ifndef AGG_ELLIPSE_BRESENHAM_INCLUDED
#define AGG_ELLIPSE_BRESENHAM_INCLUDED #define AGG_ELLIPSE_BRESENHAM_INCLUDED
#include "agg_basics.h" #include "agg_basics.h"
namespace agg {
namespace agg
{
//------------------------------------------ellipse_bresenham_interpolator //------------------------------------------ellipse_bresenham_interpolator
class ellipse_bresenham_interpolator class ellipse_bresenham_interpolator
{ {
public: public:
ellipse_bresenham_interpolator(int rx, int ry) ellipse_bresenham_interpolator(int rx, int ry) :
: m_rx2(rx * rx) m_rx2(rx * rx),
, m_ry2(ry * ry) m_ry2(ry * ry),
, m_two_rx2(m_rx2 << 1) m_two_rx2(m_rx2 << 1),
, m_two_ry2(m_ry2 << 1) m_two_ry2(m_ry2 << 1),
, m_dx(0) m_dx(0),
, m_dy(0) m_dy(0),
, m_inc_x(0) m_inc_x(0),
, m_inc_y(-ry * m_two_rx2) m_inc_y(-ry * m_two_rx2),
, m_cur_f(0) m_cur_f(0)
{} {}
int dx() const { return m_dx; } int dx() const { return m_dx; }
@ -49,16 +52,13 @@ class ellipse_bresenham_interpolator
int fx, fy, fxy; int fx, fy, fxy;
mx = fx = m_cur_f + m_inc_x + m_ry2; mx = fx = m_cur_f + m_inc_x + m_ry2;
if (mx < 0) if(mx < 0) mx = -mx;
mx = -mx;
my = fy = m_cur_f + m_inc_y + m_rx2; my = fy = m_cur_f + m_inc_y + m_rx2;
if (my < 0) if(my < 0) my = -my;
my = -my;
mxy = fxy = m_cur_f + m_inc_x + m_ry2 + m_inc_y + m_rx2; mxy = fxy = m_cur_f + m_inc_x + m_ry2 + m_inc_y + m_rx2;
if (mxy < 0) if(mxy < 0) mxy = -mxy;
mxy = -mxy;
min_m = mx; min_m = mx;
bool flag = true; bool flag = true;
@ -104,8 +104,10 @@ class ellipse_bresenham_interpolator
int m_inc_x; int m_inc_x;
int m_inc_y; int m_inc_y;
int m_cur_f; int m_cur_f;
}; };
} // namespace agg }
#endif #endif

View file

@ -18,7 +18,8 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
extern const int8u gse4x6[]; extern const int8u gse4x6[];
extern const int8u gse4x8[]; extern const int8u gse4x8[];
extern const int8u gse5x7[]; extern const int8u gse5x7[];
@ -53,6 +54,6 @@ extern const int8u verdana17[];
extern const int8u verdana17_bold[]; extern const int8u verdana17_bold[];
extern const int8u verdana18[]; extern const int8u verdana18[];
extern const int8u verdana18_bold[]; extern const int8u verdana18_bold[];
} // namespace agg }
#endif #endif

View file

@ -19,10 +19,18 @@
#include <cstring> #include <cstring>
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//---------------------------------------------------------glyph_data_type //---------------------------------------------------------glyph_data_type
enum glyph_data_type { glyph_data_invalid = 0, glyph_data_mono = 1, glyph_data_gray8 = 2, glyph_data_outline = 3 }; enum glyph_data_type
{
glyph_data_invalid = 0,
glyph_data_mono = 1,
glyph_data_gray8 = 2,
glyph_data_outline = 3
};
//-------------------------------------------------------------glyph_cache //-------------------------------------------------------------glyph_cache
struct glyph_cache struct glyph_cache
@ -36,6 +44,7 @@ struct glyph_cache
double advance_y; double advance_y;
}; };
//--------------------------------------------------------------font_cache //--------------------------------------------------------------font_cache
class font_cache class font_cache
{ {
@ -43,9 +52,9 @@ class font_cache
enum block_size_e { block_size = 16384-16 }; enum block_size_e { block_size = 16384-16 };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
font_cache() font_cache() :
: m_allocator(block_size) m_allocator(block_size),
, m_font_signature(0) m_font_signature(0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -57,7 +66,10 @@ class font_cache
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
bool font_is(const char* font_signature) const { return strcmp(font_signature, m_font_signature) == 0; } bool font_is(const char* font_signature) const
{
return strcmp(font_signature, m_font_signature) == 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
const glyph_cache* find_glyph(unsigned glyph_code) const const glyph_cache* find_glyph(unsigned glyph_code) const
@ -82,15 +94,18 @@ class font_cache
unsigned msb = (glyph_code >> 8) & 0xFF; unsigned msb = (glyph_code >> 8) & 0xFF;
if(m_glyphs[msb] == 0) if(m_glyphs[msb] == 0)
{ {
m_glyphs[msb] = (glyph_cache**)m_allocator.allocate(sizeof(glyph_cache*) * 256, sizeof(glyph_cache*)); m_glyphs[msb] =
(glyph_cache**)m_allocator.allocate(sizeof(glyph_cache*) * 256,
sizeof(glyph_cache*));
memset(m_glyphs[msb], 0, sizeof(glyph_cache*) * 256); memset(m_glyphs[msb], 0, sizeof(glyph_cache*) * 256);
} }
unsigned lsb = glyph_code & 0xFF; unsigned lsb = glyph_code & 0xFF;
if (m_glyphs[msb][lsb]) if(m_glyphs[msb][lsb]) return 0; // Already exists, do not overwrite
return 0; // Already exists, do not overwrite
glyph_cache* glyph = (glyph_cache*)m_allocator.allocate(sizeof(glyph_cache), sizeof(double)); glyph_cache* glyph =
(glyph_cache*)m_allocator.allocate(sizeof(glyph_cache),
sizeof(double));
glyph->glyph_index = glyph_index; glyph->glyph_index = glyph_index;
glyph->data = m_allocator.allocate(data_size); glyph->data = m_allocator.allocate(data_size);
@ -108,6 +123,12 @@ class font_cache
char* m_font_signature; char* m_font_signature;
}; };
//---------------------------------------------------------font_cache_pool //---------------------------------------------------------font_cache_pool
class font_cache_pool class font_cache_pool
{ {
@ -124,13 +145,14 @@ class font_cache_pool
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
font_cache_pool(unsigned max_fonts = 32) font_cache_pool(unsigned max_fonts=32) :
: m_fonts(pod_allocator<font_cache*>::allocate(max_fonts)) m_fonts(pod_allocator<font_cache*>::allocate(max_fonts)),
, m_max_fonts(max_fonts) m_max_fonts(max_fonts),
, m_num_fonts(0) m_num_fonts(0),
, m_cur_font(0) m_cur_font(0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void font(const char* font_signature, bool reset_cache = false) void font(const char* font_signature, bool reset_cache = false)
{ {
@ -150,7 +172,9 @@ class font_cache_pool
if(m_num_fonts >= m_max_fonts) if(m_num_fonts >= m_max_fonts)
{ {
obj_allocator<font_cache>::deallocate(m_fonts[0]); obj_allocator<font_cache>::deallocate(m_fonts[0]);
memcpy(m_fonts, m_fonts + 1, (m_max_fonts - 1) * sizeof(font_cache*)); memcpy(m_fonts,
m_fonts + 1,
(m_max_fonts - 1) * sizeof(font_cache*));
m_num_fonts = m_max_fonts - 1; m_num_fonts = m_max_fonts - 1;
} }
m_fonts[m_num_fonts] = obj_allocator<font_cache>::allocate(); m_fonts[m_num_fonts] = obj_allocator<font_cache>::allocate();
@ -161,13 +185,15 @@ class font_cache_pool
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
const font_cache* font() const { return m_cur_font; } const font_cache* font() const
{
return m_cur_font;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
const glyph_cache* find_glyph(unsigned glyph_code) const const glyph_cache* find_glyph(unsigned glyph_code) const
{ {
if (m_cur_font) if(m_cur_font) return m_cur_font->find_glyph(glyph_code);
return m_cur_font->find_glyph(glyph_code);
return 0; return 0;
} }
@ -182,19 +208,25 @@ class font_cache_pool
{ {
if(m_cur_font) if(m_cur_font)
{ {
return m_cur_font->cache_glyph(glyph_code, glyph_index, data_size, data_type, bounds, advance_x, advance_y); return m_cur_font->cache_glyph(glyph_code,
glyph_index,
data_size,
data_type,
bounds,
advance_x,
advance_y);
} }
return 0; return 0;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
int find_font(const char* font_signature) int find_font(const char* font_signature)
{ {
unsigned i; unsigned i;
for(i = 0; i < m_num_fonts; i++) for(i = 0; i < m_num_fonts; i++)
{ {
if (m_fonts[i]->font_is(font_signature)) if(m_fonts[i]->font_is(font_signature)) return int(i);
return int(i);
} }
return -1; return -1;
} }
@ -206,8 +238,12 @@ class font_cache_pool
font_cache* m_cur_font; font_cache* m_cur_font;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
enum glyph_rendering { enum glyph_rendering
{
glyph_ren_native_mono, glyph_ren_native_mono,
glyph_ren_native_gray8, glyph_ren_native_gray8,
glyph_ren_outline, glyph_ren_outline,
@ -215,9 +251,11 @@ enum glyph_rendering {
glyph_ren_agg_gray8 glyph_ren_agg_gray8
}; };
//------------------------------------------------------font_cache_manager //------------------------------------------------------font_cache_manager
template<class FontEngine> template<class FontEngine> class font_cache_manager
class font_cache_manager
{ {
public: public:
typedef FontEngine font_engine_type; typedef FontEngine font_engine_type;
@ -229,16 +267,19 @@ class font_cache_manager
typedef typename mono_adaptor_type::embedded_scanline mono_scanline_type; typedef typename mono_adaptor_type::embedded_scanline mono_scanline_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
font_cache_manager(font_engine_type& engine, unsigned max_fonts = 32) font_cache_manager(font_engine_type& engine, unsigned max_fonts=32) :
: m_fonts(max_fonts) m_fonts(max_fonts),
, m_engine(engine) m_engine(engine),
, m_change_stamp(-1) m_change_stamp(-1),
, m_prev_glyph(0) m_prev_glyph(0),
, m_last_glyph(0) m_last_glyph(0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_last_glyph() { m_prev_glyph = m_last_glyph = 0; } void reset_last_glyph()
{
m_prev_glyph = m_last_glyph = 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
const glyph_cache* glyph(unsigned glyph_code) const glyph_cache* glyph(unsigned glyph_code)
@ -270,14 +311,15 @@ class font_cache_manager
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void init_embedded_adaptors(const glyph_cache* gl, double x, double y, double scale = 1.0) void init_embedded_adaptors(const glyph_cache* gl,
double x, double y,
double scale=1.0)
{ {
if(gl) if(gl)
{ {
switch(gl->data_type) switch(gl->data_type)
{ {
default: default: return;
return;
case glyph_data_mono: case glyph_data_mono:
m_mono_adaptor.init(gl->data, gl->data_size, x, y); m_mono_adaptor.init(gl->data, gl->data_size, x, y);
break; break;
@ -293,6 +335,7 @@ class font_cache_manager
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
path_adaptor_type& path_adaptor() { return m_path_adaptor; } path_adaptor_type& path_adaptor() { return m_path_adaptor; }
gray8_adaptor_type& gray8_adaptor() { return m_gray8_adaptor; } gray8_adaptor_type& gray8_adaptor() { return m_gray8_adaptor; }
@ -309,7 +352,9 @@ class font_cache_manager
{ {
if(m_prev_glyph && m_last_glyph) if(m_prev_glyph && m_last_glyph)
{ {
return m_engine.add_kerning(m_prev_glyph->glyph_index, m_last_glyph->glyph_index, x, y); return m_engine.add_kerning(m_prev_glyph->glyph_index,
m_last_glyph->glyph_index,
x, y);
} }
return false; return false;
} }
@ -317,8 +362,7 @@ class font_cache_manager
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void precache(unsigned from, unsigned to) void precache(unsigned from, unsigned to)
{ {
for (; from <= to; ++from) for(; from <= to; ++from) glyph(from);
glyph(from);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -359,6 +403,7 @@ class font_cache_manager
mono_scanline_type m_mono_scanline; mono_scanline_type m_mono_scanline;
}; };
} // namespace agg }
#endif #endif

View file

@ -19,31 +19,28 @@
#include <cmath> #include <cmath>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//===============================================================gamma_none //===============================================================gamma_none
struct gamma_none struct gamma_none
{ {
double operator()(double x) const { return x; } double operator()(double x) const { return x; }
}; };
//==============================================================gamma_power //==============================================================gamma_power
class gamma_power class gamma_power
{ {
public: public:
gamma_power() gamma_power() : m_gamma(1.0) {}
: m_gamma(1.0) gamma_power(double g) : m_gamma(g) {}
{}
gamma_power(double g)
: m_gamma(g)
{}
void gamma(double g) { m_gamma = g; } void gamma(double g) { m_gamma = g; }
double gamma() const { return m_gamma; } double gamma() const { return m_gamma; }
double operator() (double x) const double operator() (double x) const
{ {
if (x == 0.0) if (x == 0.0) return 0.0;
return 0.0;
return pow(x, m_gamma); return pow(x, m_gamma);
} }
@ -51,44 +48,35 @@ class gamma_power
double m_gamma; double m_gamma;
}; };
//==========================================================gamma_threshold //==========================================================gamma_threshold
class gamma_threshold class gamma_threshold
{ {
public: public:
gamma_threshold() gamma_threshold() : m_threshold(0.5) {}
: m_threshold(0.5) gamma_threshold(double t) : m_threshold(t) {}
{}
gamma_threshold(double t)
: m_threshold(t)
{}
void threshold(double t) { m_threshold = t; } void threshold(double t) { m_threshold = t; }
double threshold() const { return m_threshold; } double threshold() const { return m_threshold; }
double operator()(double x) const { return (x < m_threshold) ? 0.0 : 1.0; } double operator() (double x) const
{
return (x < m_threshold) ? 0.0 : 1.0;
}
private: private:
double m_threshold; double m_threshold;
}; };
//============================================================gamma_linear //============================================================gamma_linear
class gamma_linear class gamma_linear
{ {
public: public:
gamma_linear() gamma_linear() : m_start(0.0), m_end(1.0) {}
: m_start(0.0) gamma_linear(double s, double e) : m_start(s), m_end(e) {}
, m_end(1.0)
{}
gamma_linear(double s, double e)
: m_start(s)
, m_end(e)
{}
void set(double s, double e) void set(double s, double e) { m_start = s; m_end = e; }
{
m_start = s;
m_end = e;
}
void start(double s) { m_start = s; } void start(double s) { m_start = s; }
void end(double e) { m_end = e; } void end(double e) { m_end = e; }
double start() const { return m_start; } double start() const { return m_start; }
@ -96,15 +84,12 @@ class gamma_linear
double operator() (double x) const double operator() (double x) const
{ {
if (x < m_start) if(x < m_start) return 0.0;
return 0.0; if(x > m_end) return 1.0;
if (x > m_end)
return 1.0;
double delta = m_end - m_start; double delta = m_end - m_start;
// avoid nan from potential zero division // avoid nan from potential zero division
// https://github.com/mapnik/mapnik/issues/761 // https://github.com/mapnik/mapnik/issues/761
if (delta <= 0.0) if (delta <= 0.0) return 0.0;
return 0.0;
return (x - m_start) / delta; return (x - m_start) / delta;
} }
@ -113,16 +98,13 @@ class gamma_linear
double m_end; double m_end;
}; };
//==========================================================gamma_multiply //==========================================================gamma_multiply
class gamma_multiply class gamma_multiply
{ {
public: public:
gamma_multiply() gamma_multiply() : m_mul(1.0) {}
: m_mul(1.0) gamma_multiply(double v) : m_mul(v) {}
{}
gamma_multiply(double v)
: m_mul(v)
{}
void value(double v) { m_mul = v; } void value(double v) { m_mul = v; }
double value() const { return m_mul; } double value() const { return m_mul; }
@ -130,8 +112,7 @@ class gamma_multiply
double operator() (double x) const double operator() (double x) const
{ {
double y = x * m_mul; double y = x * m_mul;
if (y > 1.0) if(y > 1.0) y = 1.0;
y = 1.0;
return y; return y;
} }
@ -148,6 +129,6 @@ inline double linear_to_sRGB(double x)
{ {
return (x <= 0.0031308) ? (x * 12.92) : (1.055 * pow(x, 1 / 2.4) - 0.055); return (x <= 0.0031308) ? (x * 12.92) : (1.055 * pow(x, 1 / 2.4) - 0.055);
} }
} // namespace agg }
#endif #endif

View file

@ -20,16 +20,29 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_gamma_functions.h" #include "agg_gamma_functions.h"
namespace agg { namespace agg
template<class LoResT = int8u, class HiResT = int8u, unsigned GammaShift = 8, unsigned HiResShift = 8> {
class gamma_lut template<class LoResT=int8u,
class HiResT=int8u,
unsigned GammaShift=8,
unsigned HiResShift=8> class gamma_lut
{ {
public: public:
typedef gamma_lut<LoResT, HiResT, GammaShift, HiResShift> self_type; typedef gamma_lut<LoResT, HiResT, GammaShift, HiResShift> self_type;
enum gamma_scale_e { gamma_shift = GammaShift, gamma_size = 1 << gamma_shift, gamma_mask = gamma_size - 1 }; enum gamma_scale_e
{
gamma_shift = GammaShift,
gamma_size = 1 << gamma_shift,
gamma_mask = gamma_size - 1
};
enum hi_res_scale_e { hi_res_shift = HiResShift, hi_res_size = 1 << hi_res_shift, hi_res_mask = hi_res_size - 1 }; enum hi_res_scale_e
{
hi_res_shift = HiResShift,
hi_res_size = 1 << hi_res_shift,
hi_res_mask = hi_res_size - 1
};
~gamma_lut() ~gamma_lut()
{ {
@ -37,10 +50,10 @@ class gamma_lut
pod_allocator<HiResT>::deallocate(m_dir_gamma, gamma_size); pod_allocator<HiResT>::deallocate(m_dir_gamma, gamma_size);
} }
gamma_lut() gamma_lut() :
: m_gamma(1.0) m_gamma(1.0),
, m_dir_gamma(pod_allocator<HiResT>::allocate(gamma_size)) m_dir_gamma(pod_allocator<HiResT>::allocate(gamma_size)),
, m_inv_gamma(pod_allocator<LoResT>::allocate(hi_res_size)) m_inv_gamma(pod_allocator<LoResT>::allocate(hi_res_size))
{ {
unsigned i; unsigned i;
for(i = 0; i < gamma_size; i++) for(i = 0; i < gamma_size; i++)
@ -54,10 +67,10 @@ class gamma_lut
} }
} }
gamma_lut(double g) gamma_lut(double g) :
: m_gamma(1.0) m_gamma(1.0),
, m_dir_gamma(pod_allocator<HiResT>::allocate(gamma_size)) m_dir_gamma(pod_allocator<HiResT>::allocate(gamma_size)),
, m_inv_gamma(pod_allocator<LoResT>::allocate(hi_res_size)) m_inv_gamma(pod_allocator<LoResT>::allocate(hi_res_size))
{ {
gamma(g); gamma(g);
} }
@ -69,21 +82,32 @@ class gamma_lut
unsigned i; unsigned i;
for(i = 0; i < gamma_size; i++) for(i = 0; i < gamma_size; i++)
{ {
m_dir_gamma[i] = (HiResT)uround(pow(i / double(gamma_mask), m_gamma) * double(hi_res_mask)); m_dir_gamma[i] = (HiResT)
uround(pow(i / double(gamma_mask), m_gamma) * double(hi_res_mask));
} }
double inv_g = 1.0 / g; double inv_g = 1.0 / g;
for(i = 0; i < hi_res_size; i++) for(i = 0; i < hi_res_size; i++)
{ {
m_inv_gamma[i] = (LoResT)uround(pow(i / double(hi_res_mask), inv_g) * double(gamma_mask)); m_inv_gamma[i] = (LoResT)
uround(pow(i / double(hi_res_mask), inv_g) * double(gamma_mask));
} }
} }
double gamma() const { return m_gamma; } double gamma() const
{
return m_gamma;
}
HiResT dir(LoResT v) const { return m_dir_gamma[unsigned(v)]; } HiResT dir(LoResT v) const
{
return m_dir_gamma[unsigned(v)];
}
LoResT inv(HiResT v) const { return m_inv_gamma[unsigned(v)]; } LoResT inv(HiResT v) const
{
return m_inv_gamma[unsigned(v)];
}
private: private:
gamma_lut(const self_type&); gamma_lut(const self_type&);
@ -105,28 +129,23 @@ template<class LinearType>
class sRGB_lut_base class sRGB_lut_base
{ {
public: public:
LinearType dir(int8u v) const { return m_dir_table[v]; } LinearType dir(int8u v) const
{
return m_dir_table[v];
}
int8u inv(LinearType v) const int8u inv(LinearType v) const
{ {
// Unrolled binary search. // Unrolled binary search.
int8u x = 0; int8u x = 0;
if (v > m_inv_table[128]) if (v > m_inv_table[128]) x = 128;
x = 128; if (v > m_inv_table[x + 64]) x += 64;
if (v > m_inv_table[x + 64]) if (v > m_inv_table[x + 32]) x += 32;
x += 64; if (v > m_inv_table[x + 16]) x += 16;
if (v > m_inv_table[x + 32]) if (v > m_inv_table[x + 8]) x += 8;
x += 32; if (v > m_inv_table[x + 4]) x += 4;
if (v > m_inv_table[x + 16]) if (v > m_inv_table[x + 2]) x += 2;
x += 16; if (v > m_inv_table[x + 1]) x += 1;
if (v > m_inv_table[x + 8])
x += 8;
if (v > m_inv_table[x + 4])
x += 4;
if (v > m_inv_table[x + 2])
x += 2;
if (v > m_inv_table[x + 1])
x += 1;
return x; return x;
} }
@ -135,7 +154,9 @@ class sRGB_lut_base
LinearType m_inv_table[256]; LinearType m_inv_table[256];
// Only derived classes may instantiate. // Only derived classes may instantiate.
sRGB_lut_base() {} sRGB_lut_base()
{
}
}; };
// sRGB_lut - implements sRGB conversion for the various types. // sRGB_lut - implements sRGB conversion for the various types.
@ -209,9 +230,15 @@ template<class T>
class sRGB_conv_base class sRGB_conv_base
{ {
public: public:
static T rgb_from_sRGB(int8u x) { return lut.dir(x); } static T rgb_from_sRGB(int8u x)
{
return lut.dir(x);
}
static int8u rgb_to_sRGB(T x) { return lut.inv(x); } static int8u rgb_to_sRGB(T x)
{
return lut.inv(x);
}
private: private:
static sRGB_lut<T> lut; static sRGB_lut<T> lut;
@ -231,16 +258,16 @@ template<>
class sRGB_conv<float> : public sRGB_conv_base<float> class sRGB_conv<float> : public sRGB_conv_base<float>
{ {
public: public:
static float alpha_from_sRGB(int8u x) { return float(x / 255.0); } static float alpha_from_sRGB(int8u x)
{
return float(x / 255.0);
}
static int8u alpha_to_sRGB(float x) static int8u alpha_to_sRGB(float x)
{ {
if (x <= 0) if (x <= 0) return 0;
return 0; else if (x >= 1) return 255;
else if (x >= 1) else return int8u(0.5 + x * 255);
return 255;
else
return int8u(0.5 + x * 255);
} }
}; };
@ -248,19 +275,31 @@ template<>
class sRGB_conv<int16u> : public sRGB_conv_base<int16u> class sRGB_conv<int16u> : public sRGB_conv_base<int16u>
{ {
public: public:
static int16u alpha_from_sRGB(int8u x) { return (x << 8) | x; } static int16u alpha_from_sRGB(int8u x)
{
return (x << 8) | x;
}
static int8u alpha_to_sRGB(int16u x) { return x >> 8; } static int8u alpha_to_sRGB(int16u x)
{
return x >> 8;
}
}; };
template<> template<>
class sRGB_conv<int8u> : public sRGB_conv_base<int8u> class sRGB_conv<int8u> : public sRGB_conv_base<int8u>
{ {
public: public:
static int8u alpha_from_sRGB(int8u x) { return x; } static int8u alpha_from_sRGB(int8u x)
{
return x;
}
static int8u alpha_to_sRGB(int8u x) { return x; } static int8u alpha_to_sRGB(int8u x)
{
return x;
}
}; };
} // namespace agg }
#endif #endif

View file

@ -19,11 +19,11 @@
#include <cstring> #include <cstring>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//========================================================glyph_raster_bin //========================================================glyph_raster_bin
template<class ColorT> template<class ColorT> class glyph_raster_bin
class glyph_raster_bin
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
@ -36,13 +36,12 @@ class glyph_raster_bin
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
glyph_raster_bin(const int8u* font) glyph_raster_bin(const int8u* font) :
: m_font(font) m_font(font),
, m_big_endian(false) m_big_endian(false)
{ {
int t = 1; int t = 1;
if (*(char*)&t == 0) if(*(char*)&t == 0) m_big_endian = true;
m_big_endian = true;
memset(m_span, 0, sizeof(m_span)); memset(m_span, 0, sizeof(m_span));
} }
@ -65,7 +64,8 @@ class glyph_raster_bin
while(*str) while(*str)
{ {
unsigned glyph = *str; unsigned glyph = *str;
const int8u* bits = m_font + 4 + num_chars * 2 + value(m_font + 4 + (glyph - start_char) * 2); const int8u* bits = m_font + 4 + num_chars * 2 +
value(m_font + 4 + (glyph - start_char) * 2);
w += *bits; w += *bits;
++str; ++str;
} }
@ -78,7 +78,8 @@ class glyph_raster_bin
unsigned start_char = m_font[2]; unsigned start_char = m_font[2];
unsigned num_chars = m_font[3]; unsigned num_chars = m_font[3];
m_bits = m_font + 4 + num_chars * 2 + value(m_font + 4 + (glyph - start_char) * 2); m_bits = m_font + 4 + num_chars * 2 +
value(m_font + 4 + (glyph - start_char) * 2);
m_glyph_width = *m_bits++; m_glyph_width = *m_bits++;
m_glyph_byte_width = (m_glyph_width + 7) >> 3; m_glyph_byte_width = (m_glyph_width + 7) >> 3;
@ -138,6 +139,7 @@ class glyph_raster_bin
return v; return v;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
const int8u* m_font; const int8u* m_font;
bool m_big_endian; bool m_big_endian;
@ -147,6 +149,7 @@ class glyph_raster_bin
unsigned m_glyph_byte_width; unsigned m_glyph_byte_width;
}; };
} // namespace agg
}
#endif #endif

View file

@ -21,25 +21,33 @@
#include "agg_color_rgba.h" #include "agg_color_rgba.h"
#include "agg_color_gray.h" #include "agg_color_gray.h"
namespace agg { namespace agg
{
//======================================================color_interpolator //======================================================color_interpolator
template<class ColorT> template<class ColorT> struct color_interpolator
struct color_interpolator
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
color_interpolator(const color_type& c1, const color_type& c2, unsigned len) color_interpolator(const color_type& c1,
: m_c1(c1) const color_type& c2,
, m_c2(c2) unsigned len) :
, m_len(len) m_c1(c1),
, m_count(0) m_c2(c2),
m_len(len),
m_count(0)
{} {}
void operator++() { ++m_count; } void operator ++ ()
{
++m_count;
}
color_type color() const { return m_c1.gradient(m_c2, double(m_count) / m_len); } color_type color() const
{
return m_c1.gradient(m_c2, double(m_count) / m_len);
}
private: private:
color_type m_c1; color_type m_c1;
@ -50,28 +58,29 @@ struct color_interpolator
//======================================================================== //========================================================================
// Fast specialization for rgba8 // Fast specialization for rgba8
template<> template<> struct color_interpolator<rgba8>
struct color_interpolator<rgba8>
{ {
public: public:
typedef rgba8 color_type; typedef rgba8 color_type;
color_interpolator(const color_type& c1, const color_type& c2, unsigned len) color_interpolator(const color_type& c1,
: r(c1.r, c2.r, len) const color_type& c2,
, g(c1.g, c2.g, len) unsigned len) :
, b(c1.b, c2.b, len) r(c1.r, c2.r, len),
, a(c1.a, c2.a, len) g(c1.g, c2.g, len),
b(c1.b, c2.b, len),
a(c1.a, c2.a, len)
{} {}
void operator ++ () void operator ++ ()
{ {
++r; ++r; ++g; ++b; ++a;
++g;
++b;
++a;
} }
color_type color() const { return color_type(r.y(), g.y(), b.y(), a.y()); } color_type color() const
{
return color_type(r.y(), g.y(), b.y(), a.y());
}
private: private:
agg::dda_line_interpolator<14> r, g, b, a; agg::dda_line_interpolator<14> r, g, b, a;
@ -79,32 +88,35 @@ struct color_interpolator<rgba8>
//======================================================================== //========================================================================
// Fast specialization for gray8 // Fast specialization for gray8
template<> template<> struct color_interpolator<gray8>
struct color_interpolator<gray8>
{ {
public: public:
typedef gray8 color_type; typedef gray8 color_type;
color_interpolator(const color_type& c1, const color_type& c2, unsigned len) color_interpolator(const color_type& c1,
: v(c1.v, c2.v, len) const color_type& c2,
, a(c1.a, c2.a, len) unsigned len) :
v(c1.v, c2.v, len),
a(c1.a, c2.a, len)
{} {}
void operator ++ () void operator ++ ()
{ {
++v; ++v; ++a;
++a;
} }
color_type color() const { return color_type(v.y(), a.y()); } color_type color() const
{
return color_type(v.y(), a.y());
}
private: private:
agg::dda_line_interpolator<14> v,a; agg::dda_line_interpolator<14> v,a;
}; };
//============================================================gradient_lut //============================================================gradient_lut
template<class ColorInterpolator, unsigned ColorLutSize = 256> template<class ColorInterpolator,
class gradient_lut unsigned ColorLutSize=256> class gradient_lut
{ {
public: public:
typedef ColorInterpolator interpolator_type; typedef ColorInterpolator interpolator_type;
@ -112,9 +124,7 @@ class gradient_lut
enum { color_lut_size = ColorLutSize }; enum { color_lut_size = ColorLutSize };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
gradient_lut() gradient_lut() : m_color_lut(color_lut_size) {}
: m_color_lut(color_lut_size)
{}
// Build Gradient Lut // Build Gradient Lut
// First, call remove_all(), then add_color() at least twice, // First, call remove_all(), then add_color() at least twice,
@ -133,8 +143,14 @@ class gradient_lut
// ColorF in span_gradient. All it needs is two access methods // ColorF in span_gradient. All it needs is two access methods
// size() and operator []. // size() and operator [].
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static unsigned size() { return color_lut_size; } static unsigned size()
const color_type& operator[](unsigned i) const { return m_color_lut[i]; } {
return color_lut_size;
}
const color_type& operator [] (unsigned i) const
{
return m_color_lut[i];
}
private: private:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -144,27 +160,32 @@ class gradient_lut
color_type color; color_type color;
color_point() {} color_point() {}
color_point(double off, const color_type& c) color_point(double off, const color_type& c) :
: offset(off) offset(off), color(c)
, color(c)
{ {
if (offset < 0.0) if(offset < 0.0) offset = 0.0;
offset = 0.0; if(offset > 1.0) offset = 1.0;
if (offset > 1.0)
offset = 1.0;
} }
}; };
typedef agg::pod_bvector<color_point, 4> color_profile_type; typedef agg::pod_bvector<color_point, 4> color_profile_type;
typedef agg::pod_array<color_type> color_lut_type; typedef agg::pod_array<color_type> color_lut_type;
static bool offset_less(const color_point& a, const color_point& b) { return a.offset < b.offset; } static bool offset_less(const color_point& a, const color_point& b)
static bool offset_equal(const color_point& a, const color_point& b) { return a.offset == b.offset; } {
return a.offset < b.offset;
}
static bool offset_equal(const color_point& a, const color_point& b)
{
return a.offset == b.offset;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
color_profile_type m_color_profile; color_profile_type m_color_profile;
color_lut_type m_color_lut; color_lut_type m_color_lut;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S> template<class T, unsigned S>
void gradient_lut<T,S>::remove_all() void gradient_lut<T,S>::remove_all()
@ -198,7 +219,9 @@ bool gradient_lut<T, S>::build_lut()
for(i = 1; i < m_color_profile.size(); i++) for(i = 1; i < m_color_profile.size(); i++)
{ {
end = uround(m_color_profile[i].offset * color_lut_size); end = uround(m_color_profile[i].offset * color_lut_size);
interpolator_type ci(m_color_profile[i - 1].color, m_color_profile[i].color, end - start + 1); interpolator_type ci(m_color_profile[i-1].color,
m_color_profile[i ].color,
end - start + 1);
while(start < end) while(start < end)
{ {
m_color_lut[start] = ci.color(); m_color_lut[start] = ci.color();
@ -215,6 +238,9 @@ bool gradient_lut<T, S>::build_lut()
} }
return false; return false;
} }
} // namespace agg }
#endif #endif

View file

@ -24,7 +24,9 @@
#include "agg_conv_stroke.h" #include "agg_conv_stroke.h"
#include "agg_conv_transform.h" #include "agg_conv_transform.h"
namespace agg { namespace agg
{
//---------------------------------------------------------------gsv_text //---------------------------------------------------------------gsv_text
// //
@ -32,7 +34,13 @@ namespace agg {
// //
class gsv_text class gsv_text
{ {
enum status { initial, next_char, start_glyph, glyph }; enum status
{
initial,
next_char,
start_glyph,
glyph
};
public: public:
gsv_text(); gsv_text();
@ -97,19 +105,28 @@ class gsv_text
double m_h; double m_h;
}; };
//--------------------------------------------------------gsv_text_outline //--------------------------------------------------------gsv_text_outline
template<class Transformer = trans_affine> template<class Transformer = trans_affine> class gsv_text_outline
class gsv_text_outline
{ {
public: public:
gsv_text_outline(gsv_text& text, const Transformer& trans) gsv_text_outline(gsv_text& text, const Transformer& trans) :
: m_polyline(text) m_polyline(text),
, m_trans(m_polyline, trans) m_trans(m_polyline, trans)
{} {
}
void width(double w) { m_polyline.width(w); } void width(double w)
{
m_polyline.width(w);
}
void transformer(const Transformer* trans) { m_trans->transformer(trans); } void transformer(const Transformer* trans)
{
m_trans->transformer(trans);
}
void rewind(unsigned path_id) void rewind(unsigned path_id)
{ {
@ -118,13 +135,19 @@ class gsv_text_outline
m_polyline.line_cap(round_cap); m_polyline.line_cap(round_cap);
} }
unsigned vertex(double* x, double* y) { return m_trans.vertex(x, y); } unsigned vertex(double* x, double* y)
{
return m_trans.vertex(x, y);
}
private: private:
conv_stroke<gsv_text> m_polyline; conv_stroke<gsv_text> m_polyline;
conv_transform<conv_stroke<gsv_text>, Transformer> m_trans; conv_transform<conv_stroke<gsv_text>, Transformer> m_trans;
}; };
} // namespace agg
}
#endif #endif

View file

@ -18,11 +18,11 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//-----------------------------------------------------image_accessor_clip //-----------------------------------------------------image_accessor_clip
template<class PixFmt> template<class PixFmt> class image_accessor_clip
class image_accessor_clip
{ {
public: public:
typedef PixFmt pixfmt_type; typedef PixFmt pixfmt_type;
@ -32,20 +32,28 @@ class image_accessor_clip
enum pix_width_e { pix_width = pixfmt_type::pix_width }; enum pix_width_e { pix_width = pixfmt_type::pix_width };
image_accessor_clip() {} image_accessor_clip() {}
explicit image_accessor_clip(const pixfmt_type& pixf, const color_type& bk) explicit image_accessor_clip(const pixfmt_type& pixf,
: m_pixf(&pixf) const color_type& bk) :
m_pixf(&pixf)
{ {
pixfmt_type::make_pix(m_bk_buf, bk); pixfmt_type::make_pix(m_bk_buf, bk);
} }
void attach(const pixfmt_type& pixf) { m_pixf = &pixf; } void attach(const pixfmt_type& pixf)
{
m_pixf = &pixf;
}
void background_color(const color_type& bk) { pixfmt_type::make_pix(m_bk_buf, bk); } void background_color(const color_type& bk)
{
pixfmt_type::make_pix(m_bk_buf, bk);
}
private: private:
AGG_INLINE const int8u* pixel() const AGG_INLINE const int8u* pixel() const
{ {
if (m_y >= 0 && m_y < (int)m_pixf->height() && m_x >= 0 && m_x < (int)m_pixf->width()) if(m_y >= 0 && m_y < (int)m_pixf->height() &&
m_x >= 0 && m_x < (int)m_pixf->width())
{ {
return m_pixf->pix_ptr(m_x, m_y); return m_pixf->pix_ptr(m_x, m_y);
} }
@ -57,7 +65,8 @@ class image_accessor_clip
{ {
m_x = m_x0 = x; m_x = m_x0 = x;
m_y = y; m_y = y;
if (y >= 0 && y < (int)m_pixf->height() && x >= 0 && x + (int)len <= (int)m_pixf->width()) if(y >= 0 && y < (int)m_pixf->height() &&
x >= 0 && x+(int)len <= (int)m_pixf->width())
{ {
return m_pix_ptr = m_pixf->pix_ptr(x, y); return m_pix_ptr = m_pixf->pix_ptr(x, y);
} }
@ -67,8 +76,7 @@ class image_accessor_clip
AGG_INLINE const int8u* next_x() AGG_INLINE const int8u* next_x()
{ {
if (m_pix_ptr) if(m_pix_ptr) return m_pix_ptr += pix_width;
return m_pix_ptr += pix_width;
++m_x; ++m_x;
return pixel(); return pixel();
} }
@ -77,7 +85,8 @@ class image_accessor_clip
{ {
++m_y; ++m_y;
m_x = m_x0; m_x = m_x0;
if (m_pix_ptr && m_y >= 0 && m_y < (int)m_pixf->height()) if(m_pix_ptr &&
m_y >= 0 && m_y < (int)m_pixf->height())
{ {
return m_pix_ptr = m_pixf->pix_ptr(m_x, m_y); return m_pix_ptr = m_pixf->pix_ptr(m_x, m_y);
} }
@ -92,9 +101,11 @@ class image_accessor_clip
const int8u* m_pix_ptr; const int8u* m_pix_ptr;
}; };
//--------------------------------------------------image_accessor_no_clip //--------------------------------------------------image_accessor_no_clip
template<class PixFmt> template<class PixFmt> class image_accessor_no_clip
class image_accessor_no_clip
{ {
public: public:
typedef PixFmt pixfmt_type; typedef PixFmt pixfmt_type;
@ -104,11 +115,14 @@ class image_accessor_no_clip
enum pix_width_e { pix_width = pixfmt_type::pix_width }; enum pix_width_e { pix_width = pixfmt_type::pix_width };
image_accessor_no_clip() {} image_accessor_no_clip() {}
explicit image_accessor_no_clip(const pixfmt_type& pixf) explicit image_accessor_no_clip(const pixfmt_type& pixf) :
: m_pixf(&pixf) m_pixf(&pixf)
{} {}
void attach(const pixfmt_type& pixf) { m_pixf = &pixf; } void attach(const pixfmt_type& pixf)
{
m_pixf = &pixf;
}
AGG_INLINE const int8u* span(int x, int y, unsigned) AGG_INLINE const int8u* span(int x, int y, unsigned)
{ {
@ -117,7 +131,10 @@ class image_accessor_no_clip
return m_pix_ptr = m_pixf->pix_ptr(x, y); return m_pix_ptr = m_pixf->pix_ptr(x, y);
} }
AGG_INLINE const int8u* next_x() { return m_pix_ptr += pix_width; } AGG_INLINE const int8u* next_x()
{
return m_pix_ptr += pix_width;
}
AGG_INLINE const int8u* next_y() AGG_INLINE const int8u* next_y()
{ {
@ -131,9 +148,11 @@ class image_accessor_no_clip
const int8u* m_pix_ptr; const int8u* m_pix_ptr;
}; };
//----------------------------------------------------image_accessor_clone //----------------------------------------------------image_accessor_clone
template<class PixFmt> template<class PixFmt> class image_accessor_clone
class image_accessor_clone
{ {
public: public:
typedef PixFmt pixfmt_type; typedef PixFmt pixfmt_type;
@ -143,25 +162,24 @@ class image_accessor_clone
enum pix_width_e { pix_width = pixfmt_type::pix_width }; enum pix_width_e { pix_width = pixfmt_type::pix_width };
image_accessor_clone() {} image_accessor_clone() {}
explicit image_accessor_clone(const pixfmt_type& pixf) explicit image_accessor_clone(const pixfmt_type& pixf) :
: m_pixf(&pixf) m_pixf(&pixf)
{} {}
void attach(const pixfmt_type& pixf) { m_pixf = &pixf; } void attach(const pixfmt_type& pixf)
{
m_pixf = &pixf;
}
private: private:
AGG_INLINE const int8u* pixel() const AGG_INLINE const int8u* pixel() const
{ {
int x = m_x; int x = m_x;
int y = m_y; int y = m_y;
if (x < 0) if(x < 0) x = 0;
x = 0; if(y < 0) y = 0;
if (y < 0) if(x >= (int)m_pixf->width()) x = m_pixf->width() - 1;
y = 0; if(y >= (int)m_pixf->height()) y = m_pixf->height() - 1;
if (x >= (int)m_pixf->width())
x = m_pixf->width() - 1;
if (y >= (int)m_pixf->height())
y = m_pixf->height() - 1;
return m_pixf->pix_ptr(x, y); return m_pixf->pix_ptr(x, y);
} }
@ -170,7 +188,8 @@ class image_accessor_clone
{ {
m_x = m_x0 = x; m_x = m_x0 = x;
m_y = y; m_y = y;
if (y >= 0 && y < (int)m_pixf->height() && x >= 0 && x + (int)len <= (int)m_pixf->width()) if(y >= 0 && y < (int)m_pixf->height() &&
x >= 0 && x+(int)len <= (int)m_pixf->width())
{ {
return m_pix_ptr = m_pixf->pix_ptr(x, y); return m_pix_ptr = m_pixf->pix_ptr(x, y);
} }
@ -180,8 +199,7 @@ class image_accessor_clone
AGG_INLINE const int8u* next_x() AGG_INLINE const int8u* next_x()
{ {
if (m_pix_ptr) if(m_pix_ptr) return m_pix_ptr += pix_width;
return m_pix_ptr += pix_width;
++m_x; ++m_x;
return pixel(); return pixel();
} }
@ -190,7 +208,8 @@ class image_accessor_clone
{ {
++m_y; ++m_y;
m_x = m_x0; m_x = m_x0;
if (m_pix_ptr && m_y >= 0 && m_y < (int)m_pixf->height()) if(m_pix_ptr &&
m_y >= 0 && m_y < (int)m_pixf->height())
{ {
return m_pix_ptr = m_pixf->pix_ptr(m_x, m_y); return m_pix_ptr = m_pixf->pix_ptr(m_x, m_y);
} }
@ -204,9 +223,12 @@ class image_accessor_clone
const int8u* m_pix_ptr; const int8u* m_pix_ptr;
}; };
//-----------------------------------------------------image_accessor_wrap //-----------------------------------------------------image_accessor_wrap
template<class PixFmt, class WrapX, class WrapY> template<class PixFmt, class WrapX, class WrapY> class image_accessor_wrap
class image_accessor_wrap
{ {
public: public:
typedef PixFmt pixfmt_type; typedef PixFmt pixfmt_type;
@ -216,13 +238,16 @@ class image_accessor_wrap
enum pix_width_e { pix_width = pixfmt_type::pix_width }; enum pix_width_e { pix_width = pixfmt_type::pix_width };
image_accessor_wrap() {} image_accessor_wrap() {}
explicit image_accessor_wrap(const pixfmt_type& pixf) explicit image_accessor_wrap(const pixfmt_type& pixf) :
: m_pixf(&pixf) m_pixf(&pixf),
, m_wrap_x(pixf.width()) m_wrap_x(pixf.width()),
, m_wrap_y(pixf.height()) m_wrap_y(pixf.height())
{} {}
void attach(const pixfmt_type& pixf) { m_pixf = &pixf; } void attach(const pixfmt_type& pixf)
{
m_pixf = &pixf;
}
AGG_INLINE const int8u* span(int x, int y, unsigned) AGG_INLINE const int8u* span(int x, int y, unsigned)
{ {
@ -251,83 +276,86 @@ class image_accessor_wrap
WrapY m_wrap_y; WrapY m_wrap_y;
}; };
//--------------------------------------------------------wrap_mode_repeat //--------------------------------------------------------wrap_mode_repeat
class wrap_mode_repeat class wrap_mode_repeat
{ {
public: public:
wrap_mode_repeat() {} wrap_mode_repeat() {}
wrap_mode_repeat(unsigned size) wrap_mode_repeat(unsigned size) :
: m_size(size) m_size(size),
, m_add(size * (0x3FFFFFFF / size)) m_add(size * (0x3FFFFFFF / size)),
, m_value(0) m_value(0)
{} {}
AGG_INLINE unsigned operator()(int v) { return m_value = (unsigned(v) + m_add) % m_size; } AGG_INLINE unsigned operator() (int v)
{
return m_value = (unsigned(v) + m_add) % m_size;
}
AGG_INLINE unsigned operator++ () AGG_INLINE unsigned operator++ ()
{ {
++m_value; ++m_value;
if (m_value >= m_size) if(m_value >= m_size) m_value = 0;
m_value = 0;
return m_value; return m_value;
} }
private: private:
unsigned m_size; unsigned m_size;
unsigned m_add; unsigned m_add;
unsigned m_value; unsigned m_value;
}; };
//---------------------------------------------------wrap_mode_repeat_pow2 //---------------------------------------------------wrap_mode_repeat_pow2
class wrap_mode_repeat_pow2 class wrap_mode_repeat_pow2
{ {
public: public:
wrap_mode_repeat_pow2() {} wrap_mode_repeat_pow2() {}
wrap_mode_repeat_pow2(unsigned size) wrap_mode_repeat_pow2(unsigned size) : m_value(0)
: m_value(0)
{ {
m_mask = 1; m_mask = 1;
while (m_mask < size) while(m_mask < size) m_mask = (m_mask << 1) | 1;
m_mask = (m_mask << 1) | 1;
m_mask >>= 1; m_mask >>= 1;
} }
AGG_INLINE unsigned operator()(int v) { return m_value = unsigned(v) & m_mask; } AGG_INLINE unsigned operator() (int v)
{
return m_value = unsigned(v) & m_mask;
}
AGG_INLINE unsigned operator++ () AGG_INLINE unsigned operator++ ()
{ {
++m_value; ++m_value;
if (m_value > m_mask) if(m_value > m_mask) m_value = 0;
m_value = 0;
return m_value; return m_value;
} }
private: private:
unsigned m_mask; unsigned m_mask;
unsigned m_value; unsigned m_value;
}; };
//----------------------------------------------wrap_mode_repeat_auto_pow2 //----------------------------------------------wrap_mode_repeat_auto_pow2
class wrap_mode_repeat_auto_pow2 class wrap_mode_repeat_auto_pow2
{ {
public: public:
wrap_mode_repeat_auto_pow2() {} wrap_mode_repeat_auto_pow2() {}
wrap_mode_repeat_auto_pow2(unsigned size) wrap_mode_repeat_auto_pow2(unsigned size) :
: m_size(size) m_size(size),
, m_add(size * (0x3FFFFFFF / size)) m_add(size * (0x3FFFFFFF / size)),
, m_mask((m_size & (m_size - 1)) ? 0 : m_size - 1) m_mask((m_size & (m_size-1)) ? 0 : m_size-1),
, m_value(0) m_value(0)
{} {}
AGG_INLINE unsigned operator() (int v) AGG_INLINE unsigned operator() (int v)
{ {
if (m_mask) if(m_mask) return m_value = unsigned(v) & m_mask;
return m_value = unsigned(v) & m_mask;
return m_value = (unsigned(v) + m_add) % m_size; return m_value = (unsigned(v) + m_add) % m_size;
} }
AGG_INLINE unsigned operator++ () AGG_INLINE unsigned operator++ ()
{ {
++m_value; ++m_value;
if (m_value >= m_size) if(m_value >= m_size) m_value = 0;
m_value = 0;
return m_value; return m_value;
} }
@ -338,36 +366,33 @@ class wrap_mode_repeat_auto_pow2
unsigned m_value; unsigned m_value;
}; };
//-------------------------------------------------------wrap_mode_reflect //-------------------------------------------------------wrap_mode_reflect
class wrap_mode_reflect class wrap_mode_reflect
{ {
public: public:
wrap_mode_reflect() {} wrap_mode_reflect() {}
wrap_mode_reflect(unsigned size) wrap_mode_reflect(unsigned size) :
: m_size(size) m_size(size),
, m_size2(size * 2) m_size2(size * 2),
, m_add(m_size2 * (0x3FFFFFFF / m_size2)) m_add(m_size2 * (0x3FFFFFFF / m_size2)),
, m_value(0) m_value(0)
{} {}
AGG_INLINE unsigned operator() (int v) AGG_INLINE unsigned operator() (int v)
{ {
m_value = (unsigned(v) + m_add) % m_size2; m_value = (unsigned(v) + m_add) % m_size2;
if (m_value >= m_size) if(m_value >= m_size) return m_size2 - m_value - 1;
return m_size2 - m_value - 1;
return m_value; return m_value;
} }
AGG_INLINE unsigned operator++ () AGG_INLINE unsigned operator++ ()
{ {
++m_value; ++m_value;
if (m_value >= m_size2) if(m_value >= m_size2) m_value = 0;
m_value = 0; if(m_value >= m_size) return m_size2 - m_value - 1;
if (m_value >= m_size)
return m_size2 - m_value - 1;
return m_value; return m_value;
} }
private: private:
unsigned m_size; unsigned m_size;
unsigned m_size2; unsigned m_size2;
@ -375,13 +400,14 @@ class wrap_mode_reflect
unsigned m_value; unsigned m_value;
}; };
//--------------------------------------------------wrap_mode_reflect_pow2 //--------------------------------------------------wrap_mode_reflect_pow2
class wrap_mode_reflect_pow2 class wrap_mode_reflect_pow2
{ {
public: public:
wrap_mode_reflect_pow2() {} wrap_mode_reflect_pow2() {}
wrap_mode_reflect_pow2(unsigned size) wrap_mode_reflect_pow2(unsigned size) : m_value(0)
: m_value(0)
{ {
m_mask = 1; m_mask = 1;
m_size = 1; m_size = 1;
@ -394,52 +420,49 @@ class wrap_mode_reflect_pow2
AGG_INLINE unsigned operator() (int v) AGG_INLINE unsigned operator() (int v)
{ {
m_value = unsigned(v) & m_mask; m_value = unsigned(v) & m_mask;
if (m_value >= m_size) if(m_value >= m_size) return m_mask - m_value;
return m_mask - m_value;
return m_value; return m_value;
} }
AGG_INLINE unsigned operator++ () AGG_INLINE unsigned operator++ ()
{ {
++m_value; ++m_value;
m_value &= m_mask; m_value &= m_mask;
if (m_value >= m_size) if(m_value >= m_size) return m_mask - m_value;
return m_mask - m_value;
return m_value; return m_value;
} }
private: private:
unsigned m_size; unsigned m_size;
unsigned m_mask; unsigned m_mask;
unsigned m_value; unsigned m_value;
}; };
//---------------------------------------------wrap_mode_reflect_auto_pow2 //---------------------------------------------wrap_mode_reflect_auto_pow2
class wrap_mode_reflect_auto_pow2 class wrap_mode_reflect_auto_pow2
{ {
public: public:
wrap_mode_reflect_auto_pow2() {} wrap_mode_reflect_auto_pow2() {}
wrap_mode_reflect_auto_pow2(unsigned size) wrap_mode_reflect_auto_pow2(unsigned size) :
: m_size(size) m_size(size),
, m_size2(size * 2) m_size2(size * 2),
, m_add(m_size2 * (0x3FFFFFFF / m_size2)) m_add(m_size2 * (0x3FFFFFFF / m_size2)),
, m_mask((m_size2 & (m_size2 - 1)) ? 0 : m_size2 - 1) m_mask((m_size2 & (m_size2-1)) ? 0 : m_size2-1),
, m_value(0) m_value(0)
{} {}
AGG_INLINE unsigned operator() (int v) AGG_INLINE unsigned operator() (int v)
{ {
m_value = m_mask ? unsigned(v) & m_mask : (unsigned(v) + m_add) % m_size2; m_value = m_mask ? unsigned(v) & m_mask :
if (m_value >= m_size) (unsigned(v) + m_add) % m_size2;
return m_size2 - m_value - 1; if(m_value >= m_size) return m_size2 - m_value - 1;
return m_value; return m_value;
} }
AGG_INLINE unsigned operator++ () AGG_INLINE unsigned operator++ ()
{ {
++m_value; ++m_value;
if (m_value >= m_size2) if(m_value >= m_size2) m_value = 0;
m_value = 0; if(m_value >= m_size) return m_size2 - m_value - 1;
if (m_value >= m_size)
return m_size2 - m_value - 1;
return m_value; return m_value;
} }
@ -451,6 +474,8 @@ class wrap_mode_reflect_auto_pow2
unsigned m_value; unsigned m_value;
}; };
} // namespace agg
}
#endif #endif

View file

@ -24,28 +24,32 @@
#include "agg_math.h" #include "agg_math.h"
#include <cstdint> #include <cstdint>
namespace agg { namespace agg
{
// See Implementation agg_image_filters.cpp // See Implementation agg_image_filters.cpp
enum image_filter_scale_e { enum image_filter_scale_e
{
image_filter_shift = 14, //----image_filter_shift image_filter_shift = 14, //----image_filter_shift
image_filter_scale = 1 << image_filter_shift, //----image_filter_scale image_filter_scale = 1 << image_filter_shift, //----image_filter_scale
image_filter_mask = image_filter_scale - 1 //----image_filter_mask image_filter_mask = image_filter_scale - 1 //----image_filter_mask
}; };
enum image_subpixel_scale_e { enum image_subpixel_scale_e
{
image_subpixel_shift = 8, //----image_subpixel_shift image_subpixel_shift = 8, //----image_subpixel_shift
image_subpixel_scale = 1 << image_subpixel_shift, //----image_subpixel_scale image_subpixel_scale = 1 << image_subpixel_shift, //----image_subpixel_scale
image_subpixel_mask = image_subpixel_scale - 1 //----image_subpixel_mask image_subpixel_mask = image_subpixel_scale - 1 //----image_subpixel_mask
}; };
//-----------------------------------------------------image_filter_lut //-----------------------------------------------------image_filter_lut
class image_filter_lut class image_filter_lut
{ {
public: public:
template<class FilterF> template<class FilterF> void calculate(const FilterF& filter,
void calculate(const FilterF& filter, bool normalization = true) bool normalization=true)
{ {
double r = filter.radius(); double r = filter.radius();
realloc_lut(r); realloc_lut(r);
@ -55,7 +59,8 @@ class image_filter_lut
{ {
double x = double(i) / double(image_subpixel_scale); double x = double(i) / double(image_subpixel_scale);
double y = filter.calc_weight(x); double y = filter.calc_weight(x);
m_weight_array[pivot + i] = m_weight_array[pivot - i] = m_weight_array[pivot + i] =
m_weight_array[pivot - i] =
static_cast<std::int16_t>(iround(y * static_cast<double>(image_filter_scale))); static_cast<std::int16_t>(iround(y * static_cast<double>(image_filter_scale)));
} }
unsigned end = (diameter() << image_subpixel_shift) - 1; unsigned end = (diameter() << image_subpixel_shift) - 1;
@ -66,14 +71,10 @@ class image_filter_lut
} }
} }
image_filter_lut() image_filter_lut() : m_radius(0), m_diameter(0), m_start(0) {}
: m_radius(0)
, m_diameter(0)
, m_start(0)
{}
template<class FilterF> template<class FilterF> image_filter_lut(const FilterF& filter,
image_filter_lut(const FilterF& filter, bool normalization = true) bool normalization=true)
{ {
calculate(filter, normalization); calculate(filter, normalization);
} }
@ -95,43 +96,61 @@ class image_filter_lut
pod_array<std::int16_t> m_weight_array; pod_array<std::int16_t> m_weight_array;
}; };
//--------------------------------------------------------image_filter //--------------------------------------------------------image_filter
template<class FilterF> template<class FilterF> class image_filter : public image_filter_lut
class image_filter : public image_filter_lut
{ {
public: public:
image_filter() { calculate(m_filter_function); } image_filter()
{
calculate(m_filter_function);
}
private: private:
FilterF m_filter_function; FilterF m_filter_function;
}; };
//-----------------------------------------------image_filter_bilinear //-----------------------------------------------image_filter_bilinear
struct image_filter_bilinear struct image_filter_bilinear
{ {
static double radius() { return 1.0; } static double radius() { return 1.0; }
static double calc_weight(double x) { return 1.0 - x; } static double calc_weight(double x)
{
return 1.0 - x;
}
}; };
//-----------------------------------------------image_filter_hanning //-----------------------------------------------image_filter_hanning
struct image_filter_hanning struct image_filter_hanning
{ {
static double radius() { return 1.0; } static double radius() { return 1.0; }
static double calc_weight(double x) { return 0.5 + 0.5 * std::cos(pi * x); } static double calc_weight(double x)
{
return 0.5 + 0.5 * std::cos(pi * x);
}
}; };
//-----------------------------------------------image_filter_hamming //-----------------------------------------------image_filter_hamming
struct image_filter_hamming struct image_filter_hamming
{ {
static double radius() { return 1.0; } static double radius() { return 1.0; }
static double calc_weight(double x) { return 0.54 + 0.46 * std::cos(pi * x); } static double calc_weight(double x)
{
return 0.54 + 0.46 * std::cos(pi * x);
}
}; };
//-----------------------------------------------image_filter_hermite //-----------------------------------------------image_filter_hermite
struct image_filter_hermite struct image_filter_hermite
{ {
static double radius() { return 1.0; } static double radius() { return 1.0; }
static double calc_weight(double x) { return (2.0 * x - 3.0) * x * x + 1.0; } static double calc_weight(double x)
{
return (2.0 * x - 3.0) * x * x + 1.0;
}
}; };
//------------------------------------------------image_filter_quadric //------------------------------------------------image_filter_quadric
@ -141,13 +160,8 @@ struct image_filter_quadric
static double calc_weight(double x) static double calc_weight(double x)
{ {
double t; double t;
if (x < 0.5) if(x < 0.5) return 0.75 - x * x;
return 0.75 - x * x; if(x < 1.5) {t = x - 1.5; return 0.5 * t * t;}
if (x < 1.5)
{
t = x - 1.5;
return 0.5 * t * t;
}
return 0.0; return 0.0;
} }
}; };
@ -155,13 +169,18 @@ struct image_filter_quadric
//------------------------------------------------image_filter_bicubic //------------------------------------------------image_filter_bicubic
class image_filter_bicubic class image_filter_bicubic
{ {
static double pow3(double x) { return (x <= 0.0) ? 0.0 : x * x * x; } static double pow3(double x)
{
return (x <= 0.0) ? 0.0 : x * x * x;
}
public: public:
static double radius() { return 2.0; } static double radius() { return 2.0; }
static double calc_weight(double x) static double calc_weight(double x)
{ {
return (1.0 / 6.0) * (pow3(x + 2) - 4 * pow3(x + 1) + 6 * pow3(x) - 4 * pow3(x - 1)); return
(1.0/6.0) *
(pow3(x + 2) - 4 * pow3(x + 1) + 6 * pow3(x) - 4 * pow3(x - 1));
} }
}; };
@ -173,15 +192,17 @@ class image_filter_kaiser
double epsilon; double epsilon;
public: public:
image_filter_kaiser(double b = 6.33) image_filter_kaiser(double b = 6.33) :
: a(b) a(b), epsilon(1e-12)
, epsilon(1e-12)
{ {
i0a = 1.0 / bessel_i0(b); i0a = 1.0 / bessel_i0(b);
} }
static double radius() { return 1.0; } static double radius() { return 1.0; }
double calc_weight(double x) const { return bessel_i0(a * sqrt(1. - x * x)) * i0a; } double calc_weight(double x) const
{
return bessel_i0(a * sqrt(1. - x * x)) * i0a;
}
private: private:
double bessel_i0(double x) const double bessel_i0(double x) const
@ -208,10 +229,8 @@ struct image_filter_catrom
static double radius() { return 2.0; } static double radius() { return 2.0; }
static double calc_weight(double x) static double calc_weight(double x)
{ {
if (x < 1.0) if(x < 1.0) return 0.5 * (2.0 + x * x * (-5.0 + x * 3.0));
return 0.5 * (2.0 + x * x * (-5.0 + x * 3.0)); if(x < 2.0) return 0.5 * (4.0 + x * (-8.0 + x * (5.0 - x)));
if (x < 2.0)
return 0.5 * (4.0 + x * (-8.0 + x * (5.0 - x)));
return 0.; return 0.;
} }
}; };
@ -223,27 +242,26 @@ class image_filter_mitchell
double q0, q1, q2, q3; double q0, q1, q2, q3;
public: public:
image_filter_mitchell(double b = 1.0 / 3.0, double c = 1.0 / 3.0) image_filter_mitchell(double b = 1.0/3.0, double c = 1.0/3.0) :
: p0((6.0 - 2.0 * b) / 6.0) p0((6.0 - 2.0 * b) / 6.0),
, p2((-18.0 + 12.0 * b + 6.0 * c) / 6.0) p2((-18.0 + 12.0 * b + 6.0 * c) / 6.0),
, p3((12.0 - 9.0 * b - 6.0 * c) / 6.0) p3((12.0 - 9.0 * b - 6.0 * c) / 6.0),
, q0((8.0 * b + 24.0 * c) / 6.0) q0((8.0 * b + 24.0 * c) / 6.0),
, q1((-12.0 * b - 48.0 * c) / 6.0) q1((-12.0 * b - 48.0 * c) / 6.0),
, q2((6.0 * b + 30.0 * c) / 6.0) q2((6.0 * b + 30.0 * c) / 6.0),
, q3((-b - 6.0 * c) / 6.0) q3((-b - 6.0 * c) / 6.0)
{} {}
static double radius() { return 2.0; } static double radius() { return 2.0; }
double calc_weight(double x) const double calc_weight(double x) const
{ {
if (x < 1.0) if(x < 1.0) return p0 + x * x * (p2 + x * p3);
return p0 + x * x * (p2 + x * p3); if(x < 2.0) return q0 + x * (q1 + x * (q2 + x * q3));
if (x < 2.0)
return q0 + x * (q1 + x * (q2 + x * q3));
return 0.0; return 0.0;
} }
}; };
//----------------------------------------------image_filter_spline16 //----------------------------------------------image_filter_spline16
struct image_filter_spline16 struct image_filter_spline16
{ {
@ -258,6 +276,7 @@ struct image_filter_spline16
} }
}; };
//---------------------------------------------image_filter_spline36 //---------------------------------------------image_filter_spline36
struct image_filter_spline36 struct image_filter_spline36
{ {
@ -276,248 +295,156 @@ struct image_filter_spline36
} }
}; };
//----------------------------------------------image_filter_gaussian //----------------------------------------------image_filter_gaussian
struct image_filter_gaussian struct image_filter_gaussian
{ {
static double radius() { return 2.0; } static double radius() { return 2.0; }
static double calc_weight(double x) { return exp(-2.0 * x * x) * sqrt(2.0 / pi); } static double calc_weight(double x)
{
return exp(-2.0 * x * x) * sqrt(2.0 / pi);
}
}; };
//------------------------------------------------image_filter_bessel //------------------------------------------------image_filter_bessel
struct image_filter_bessel struct image_filter_bessel
{ {
static double radius() { return 3.2383; } static double radius() { return 3.2383; }
static double calc_weight(double x) { return (x == 0.0) ? pi / 4.0 : besj(pi * x, 1) / (2.0 * x); } static double calc_weight(double x)
{
return (x == 0.0) ? pi / 4.0 : besj(pi * x, 1) / (2.0 * x);
}
}; };
//-------------------------------------------------image_filter_sinc //-------------------------------------------------image_filter_sinc
class image_filter_sinc class image_filter_sinc
{ {
public: public:
image_filter_sinc(double r) image_filter_sinc(double r) : m_radius(r < 2.0 ? 2.0 : r) {}
: m_radius(r < 2.0 ? 2.0 : r)
{}
double radius() const { return m_radius; } double radius() const { return m_radius; }
double calc_weight(double x) const double calc_weight(double x) const
{ {
if (x == 0.0) if(x == 0.0) return 1.0;
return 1.0;
x *= pi; x *= pi;
return std::sin(x) / x; return std::sin(x) / x;
} }
private: private:
double m_radius; double m_radius;
}; };
//-----------------------------------------------image_filter_lanczos //-----------------------------------------------image_filter_lanczos
class image_filter_lanczos class image_filter_lanczos
{ {
public: public:
image_filter_lanczos(double r) image_filter_lanczos(double r) : m_radius(r < 2.0 ? 2.0 : r) {}
: m_radius(r < 2.0 ? 2.0 : r)
{}
double radius() const { return m_radius; } double radius() const { return m_radius; }
double calc_weight(double x) const double calc_weight(double x) const
{ {
if (x == 0.0) if(x == 0.0) return 1.0;
return 1.0; if(x > m_radius) return 0.0;
if (x > m_radius)
return 0.0;
x *= pi; x *= pi;
double xr = x / m_radius; double xr = x / m_radius;
return (std::sin(x) / x) * (std::sin(xr) / xr); return (std::sin(x) / x) * (std::sin(xr) / xr);
} }
private: private:
double m_radius; double m_radius;
}; };
//----------------------------------------------image_filter_blackman //----------------------------------------------image_filter_blackman
class image_filter_blackman class image_filter_blackman
{ {
public: public:
image_filter_blackman(double r) image_filter_blackman(double r) : m_radius(r < 2.0 ? 2.0 : r) {}
: m_radius(r < 2.0 ? 2.0 : r)
{}
double radius() const { return m_radius; } double radius() const { return m_radius; }
double calc_weight(double x) const double calc_weight(double x) const
{ {
if (x == 0.0) if(x == 0.0) return 1.0;
return 1.0; if(x > m_radius) return 0.0;
if (x > m_radius)
return 0.0;
x *= pi; x *= pi;
double xr = x / m_radius; double xr = x / m_radius;
return (std::sin(x) / x) * (0.42 + 0.5 * std::cos(xr) + 0.08 * std::cos(2*xr)); return (std::sin(x) / x) * (0.42 + 0.5 * std::cos(xr) + 0.08 * std::cos(2*xr));
} }
private: private:
double m_radius; double m_radius;
}; };
//------------------------------------------------image_filter_sinc36 //------------------------------------------------image_filter_sinc36
class image_filter_sinc36 : public image_filter_sinc class image_filter_sinc36 : public image_filter_sinc
{ { public: image_filter_sinc36() : image_filter_sinc(3.0){} };
public:
image_filter_sinc36()
: image_filter_sinc(3.0)
{}
};
//------------------------------------------------image_filter_sinc64 //------------------------------------------------image_filter_sinc64
class image_filter_sinc64 : public image_filter_sinc class image_filter_sinc64 : public image_filter_sinc
{ { public: image_filter_sinc64() : image_filter_sinc(4.0){} };
public:
image_filter_sinc64()
: image_filter_sinc(4.0)
{}
};
//-----------------------------------------------image_filter_sinc100 //-----------------------------------------------image_filter_sinc100
class image_filter_sinc100 : public image_filter_sinc class image_filter_sinc100 : public image_filter_sinc
{ { public: image_filter_sinc100() : image_filter_sinc(5.0){} };
public:
image_filter_sinc100()
: image_filter_sinc(5.0)
{}
};
//-----------------------------------------------image_filter_sinc144 //-----------------------------------------------image_filter_sinc144
class image_filter_sinc144 : public image_filter_sinc class image_filter_sinc144 : public image_filter_sinc
{ { public: image_filter_sinc144() : image_filter_sinc(6.0){} };
public:
image_filter_sinc144()
: image_filter_sinc(6.0)
{}
};
//-----------------------------------------------image_filter_sinc196 //-----------------------------------------------image_filter_sinc196
class image_filter_sinc196 : public image_filter_sinc class image_filter_sinc196 : public image_filter_sinc
{ { public: image_filter_sinc196() : image_filter_sinc(7.0){} };
public:
image_filter_sinc196()
: image_filter_sinc(7.0)
{}
};
//-----------------------------------------------image_filter_sinc256 //-----------------------------------------------image_filter_sinc256
class image_filter_sinc256 : public image_filter_sinc class image_filter_sinc256 : public image_filter_sinc
{ { public: image_filter_sinc256() : image_filter_sinc(8.0){} };
public:
image_filter_sinc256()
: image_filter_sinc(8.0)
{}
};
//---------------------------------------------image_filter_lanczos36 //---------------------------------------------image_filter_lanczos36
class image_filter_lanczos36 : public image_filter_lanczos class image_filter_lanczos36 : public image_filter_lanczos
{ { public: image_filter_lanczos36() : image_filter_lanczos(3.0){} };
public:
image_filter_lanczos36()
: image_filter_lanczos(3.0)
{}
};
//---------------------------------------------image_filter_lanczos64 //---------------------------------------------image_filter_lanczos64
class image_filter_lanczos64 : public image_filter_lanczos class image_filter_lanczos64 : public image_filter_lanczos
{ { public: image_filter_lanczos64() : image_filter_lanczos(4.0){} };
public:
image_filter_lanczos64()
: image_filter_lanczos(4.0)
{}
};
//--------------------------------------------image_filter_lanczos100 //--------------------------------------------image_filter_lanczos100
class image_filter_lanczos100 : public image_filter_lanczos class image_filter_lanczos100 : public image_filter_lanczos
{ { public: image_filter_lanczos100() : image_filter_lanczos(5.0){} };
public:
image_filter_lanczos100()
: image_filter_lanczos(5.0)
{}
};
//--------------------------------------------image_filter_lanczos144 //--------------------------------------------image_filter_lanczos144
class image_filter_lanczos144 : public image_filter_lanczos class image_filter_lanczos144 : public image_filter_lanczos
{ { public: image_filter_lanczos144() : image_filter_lanczos(6.0){} };
public:
image_filter_lanczos144()
: image_filter_lanczos(6.0)
{}
};
//--------------------------------------------image_filter_lanczos196 //--------------------------------------------image_filter_lanczos196
class image_filter_lanczos196 : public image_filter_lanczos class image_filter_lanczos196 : public image_filter_lanczos
{ { public: image_filter_lanczos196() : image_filter_lanczos(7.0){} };
public:
image_filter_lanczos196()
: image_filter_lanczos(7.0)
{}
};
//--------------------------------------------image_filter_lanczos256 //--------------------------------------------image_filter_lanczos256
class image_filter_lanczos256 : public image_filter_lanczos class image_filter_lanczos256 : public image_filter_lanczos
{ { public: image_filter_lanczos256() : image_filter_lanczos(8.0){} };
public:
image_filter_lanczos256()
: image_filter_lanczos(8.0)
{}
};
//--------------------------------------------image_filter_blackman36 //--------------------------------------------image_filter_blackman36
class image_filter_blackman36 : public image_filter_blackman class image_filter_blackman36 : public image_filter_blackman
{ { public: image_filter_blackman36() : image_filter_blackman(3.0){} };
public:
image_filter_blackman36()
: image_filter_blackman(3.0)
{}
};
//--------------------------------------------image_filter_blackman64 //--------------------------------------------image_filter_blackman64
class image_filter_blackman64 : public image_filter_blackman class image_filter_blackman64 : public image_filter_blackman
{ { public: image_filter_blackman64() : image_filter_blackman(4.0){} };
public:
image_filter_blackman64()
: image_filter_blackman(4.0)
{}
};
//-------------------------------------------image_filter_blackman100 //-------------------------------------------image_filter_blackman100
class image_filter_blackman100 : public image_filter_blackman class image_filter_blackman100 : public image_filter_blackman
{ { public: image_filter_blackman100() : image_filter_blackman(5.0){} };
public:
image_filter_blackman100()
: image_filter_blackman(5.0)
{}
};
//-------------------------------------------image_filter_blackman144 //-------------------------------------------image_filter_blackman144
class image_filter_blackman144 : public image_filter_blackman class image_filter_blackman144 : public image_filter_blackman
{ { public: image_filter_blackman144() : image_filter_blackman(6.0){} };
public:
image_filter_blackman144()
: image_filter_blackman(6.0)
{}
};
//-------------------------------------------image_filter_blackman196 //-------------------------------------------image_filter_blackman196
class image_filter_blackman196 : public image_filter_blackman class image_filter_blackman196 : public image_filter_blackman
{ { public: image_filter_blackman196() : image_filter_blackman(7.0){} };
public:
image_filter_blackman196()
: image_filter_blackman(7.0)
{}
};
//-------------------------------------------image_filter_blackman256 //-------------------------------------------image_filter_blackman256
class image_filter_blackman256 : public image_filter_blackman class image_filter_blackman256 : public image_filter_blackman
{ { public: image_filter_blackman256() : image_filter_blackman(8.0){} };
public:
image_filter_blackman256()
: image_filter_blackman(8.0)
{}
};
} // namespace agg
}
#endif #endif

View file

@ -18,12 +18,14 @@
#include <cstdlib> #include <cstdlib>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
// See Implementation agg_line_aa_basics.cpp // See Implementation agg_line_aa_basics.cpp
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
enum line_subpixel_scale_e { enum line_subpixel_scale_e
{
line_subpixel_shift = 8, //----line_subpixel_shift line_subpixel_shift = 8, //----line_subpixel_shift
line_subpixel_scale = 1 << line_subpixel_shift, //----line_subpixel_scale line_subpixel_scale = 1 << line_subpixel_shift, //----line_subpixel_scale
line_subpixel_mask = line_subpixel_scale - 1, //----line_subpixel_mask line_subpixel_mask = line_subpixel_scale - 1, //----line_subpixel_mask
@ -32,7 +34,8 @@ enum line_subpixel_scale_e {
}; };
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
enum line_mr_subpixel_scale_e { enum line_mr_subpixel_scale_e
{
line_mr_subpixel_shift = 4, //----line_mr_subpixel_shift line_mr_subpixel_shift = 4, //----line_mr_subpixel_shift
line_mr_subpixel_scale = 1 << line_mr_subpixel_shift, //----line_mr_subpixel_scale line_mr_subpixel_scale = 1 << line_mr_subpixel_shift, //----line_mr_subpixel_scale
line_mr_subpixel_mask = line_mr_subpixel_scale - 1 //----line_mr_subpixel_mask line_mr_subpixel_mask = line_mr_subpixel_scale - 1 //----line_mr_subpixel_mask
@ -59,7 +62,10 @@ AGG_INLINE int line_dbl_hr(int x)
//---------------------------------------------------------------line_coord //---------------------------------------------------------------line_coord
struct line_coord struct line_coord
{ {
AGG_INLINE static int conv(double x) { return iround(x * static_cast<double>(line_subpixel_scale)); } AGG_INLINE static int conv(double x)
{
return iround(x * static_cast<double>(line_subpixel_scale));
}
}; };
//-----------------------------------------------------------line_coord_sat //-----------------------------------------------------------line_coord_sat
@ -76,20 +82,18 @@ struct line_parameters
{ {
//--------------------------------------------------------------------- //---------------------------------------------------------------------
line_parameters() {} line_parameters() {}
line_parameters(int x1_, int y1_, int x2_, int y2_, int len_) line_parameters(int x1_, int y1_, int x2_, int y2_, int len_) :
: x1(x1_) x1(x1_), y1(y1_), x2(x2_), y2(y2_),
, y1(y1_) dx(std::abs(x2_ - x1_)),
, x2(x2_) dy(std::abs(y2_ - y1_)),
, y2(y2_) sx((x2_ > x1_) ? 1 : -1),
, dx(std::abs(x2_ - x1_)) sy((y2_ > y1_) ? 1 : -1),
, dy(std::abs(y2_ - y1_)) vertical(dy >= dx),
, sx((x2_ > x1_) ? 1 : -1) inc(vertical ? sy : sx),
, sy((y2_ > y1_) ? 1 : -1) len(len_),
, vertical(dy >= dx) octant((sy & 4) | (sx & 2) | int(vertical))
, inc(vertical ? sy : sx) {
, len(len_) }
, octant((sy & 4) | (sx & 2) | int(vertical))
{}
//--------------------------------------------------------------------- //---------------------------------------------------------------------
unsigned orthogonal_quadrant() const { return s_orthogonal_quadrant[octant]; } unsigned orthogonal_quadrant() const { return s_orthogonal_quadrant[octant]; }
@ -142,15 +146,22 @@ struct line_parameters
static const int8u s_diagonal_quadrant[8]; static const int8u s_diagonal_quadrant[8];
}; };
// See Implementation agg_line_aa_basics.cpp // See Implementation agg_line_aa_basics.cpp
//----------------------------------------------------------------bisectrix //----------------------------------------------------------------bisectrix
void bisectrix(const line_parameters& l1, const line_parameters& l2, int* x, int* y); void bisectrix(const line_parameters& l1,
const line_parameters& l2,
int* x, int* y);
//-------------------------------------------fix_degenerate_bisectrix_start //-------------------------------------------fix_degenerate_bisectrix_start
void inline fix_degenerate_bisectrix_start(const line_parameters& lp, int* x, int* y) void inline fix_degenerate_bisectrix_start(const line_parameters& lp,
int* x, int* y)
{ {
int d = iround((double(*x - lp.x2) * double(lp.y2 - lp.y1) - double(*y - lp.y2) * double(lp.x2 - lp.x1)) / lp.len); int d = iround((double(*x - lp.x2) * double(lp.y2 - lp.y1) -
double(*y - lp.y2) * double(lp.x2 - lp.x1)) / lp.len);
if(d < line_subpixel_scale/2) if(d < line_subpixel_scale/2)
{ {
*x = lp.x1 + (lp.y2 - lp.y1); *x = lp.x1 + (lp.y2 - lp.y1);
@ -158,10 +169,13 @@ void inline fix_degenerate_bisectrix_start(const line_parameters& lp, int* x, in
} }
} }
//---------------------------------------------fix_degenerate_bisectrix_end //---------------------------------------------fix_degenerate_bisectrix_end
void inline fix_degenerate_bisectrix_end(const line_parameters& lp, int* x, int* y) void inline fix_degenerate_bisectrix_end(const line_parameters& lp,
int* x, int* y)
{ {
int d = iround((double(*x - lp.x2) * double(lp.y2 - lp.y1) - double(*y - lp.y2) * double(lp.x2 - lp.x1)) / lp.len); int d = iround((double(*x - lp.x2) * double(lp.y2 - lp.y1) -
double(*y - lp.y2) * double(lp.x2 - lp.x1)) / lp.len);
if(d < line_subpixel_scale/2) if(d < line_subpixel_scale/2)
{ {
*x = lp.x2 + (lp.y2 - lp.y1); *x = lp.x2 + (lp.y2 - lp.y1);
@ -169,6 +183,7 @@ void inline fix_degenerate_bisectrix_end(const line_parameters& lp, int* x, int*
} }
} }
} // namespace agg
}
#endif #endif

View file

@ -22,7 +22,8 @@
#include <cmath> #include <cmath>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//------------------------------------------------------vertex_dist_epsilon //------------------------------------------------------vertex_dist_epsilon
// Coinciding points maximal distance (Epsilon) // Coinciding points maximal distance (Epsilon)
@ -33,13 +34,18 @@ const double vertex_dist_epsilon = 1e-5;
const double intersection_epsilon = 1.0e-30; const double intersection_epsilon = 1.0e-30;
//------------------------------------------------------------cross_product //------------------------------------------------------------cross_product
AGG_INLINE double cross_product(double x1, double y1, double x2, double y2, double x, double y) AGG_INLINE double cross_product(double x1, double y1,
double x2, double y2,
double x, double y)
{ {
return (x - x2) * (y2 - y1) - (y - y2) * (x2 - x1); return (x - x2) * (y2 - y1) - (y - y2) * (x2 - x1);
} }
//--------------------------------------------------------point_in_triangle //--------------------------------------------------------point_in_triangle
AGG_INLINE bool point_in_triangle(double x1, double y1, double x2, double y2, double x3, double y3, double x, double y) AGG_INLINE bool point_in_triangle(double x1, double y1,
double x2, double y2,
double x3, double y3,
double x, double y)
{ {
bool cp1 = cross_product(x1, y1, x2, y2, x, y) < 0.0; bool cp1 = cross_product(x1, y1, x2, y2, x, y) < 0.0;
bool cp2 = cross_product(x2, y2, x3, y3, x, y) < 0.0; bool cp2 = cross_product(x2, y2, x3, y3, x, y) < 0.0;
@ -64,7 +70,9 @@ AGG_INLINE double calc_sq_distance(double x1, double y1, double x2, double y2)
} }
//------------------------------------------------calc_line_point_distance //------------------------------------------------calc_line_point_distance
AGG_INLINE double calc_line_point_distance(double x1, double y1, double x2, double y2, double x, double y) AGG_INLINE double calc_line_point_distance(double x1, double y1,
double x2, double y2,
double x, double y)
{ {
double dx = x2-x1; double dx = x2-x1;
double dy = y2-y1; double dy = y2-y1;
@ -77,7 +85,9 @@ AGG_INLINE double calc_line_point_distance(double x1, double y1, double x2, doub
} }
//-------------------------------------------------------calc_line_point_u //-------------------------------------------------------calc_line_point_u
AGG_INLINE double calc_segment_point_u(double x1, double y1, double x2, double y2, double x, double y) AGG_INLINE double calc_segment_point_u(double x1, double y1,
double x2, double y2,
double x, double y)
{ {
double dx = x2 - x1; double dx = x2 - x1;
double dy = y2 - y1; double dy = y2 - y1;
@ -94,14 +104,17 @@ AGG_INLINE double calc_segment_point_u(double x1, double y1, double x2, double y
} }
//---------------------------------------------calc_line_point_sq_distance //---------------------------------------------calc_line_point_sq_distance
AGG_INLINE double AGG_INLINE double calc_segment_point_sq_distance(double x1, double y1,
calc_segment_point_sq_distance(double x1, double y1, double x2, double y2, double x, double y, double u) double x2, double y2,
double x, double y,
double u)
{ {
if(u <= 0) if(u <= 0)
{ {
return calc_sq_distance(x, y, x1, y1); return calc_sq_distance(x, y, x1, y1);
} }
else if (u >= 1) else
if(u >= 1)
{ {
return calc_sq_distance(x, y, x2, y2); return calc_sq_distance(x, y, x2, y2);
} }
@ -109,27 +122,24 @@ AGG_INLINE double
} }
//---------------------------------------------calc_line_point_sq_distance //---------------------------------------------calc_line_point_sq_distance
AGG_INLINE double calc_segment_point_sq_distance(double x1, double y1, double x2, double y2, double x, double y) AGG_INLINE double calc_segment_point_sq_distance(double x1, double y1,
double x2, double y2,
double x, double y)
{ {
return calc_segment_point_sq_distance(x1, y1, x2, y2, x, y, calc_segment_point_u(x1, y1, x2, y2, x, y)); return
calc_segment_point_sq_distance(
x1, y1, x2, y2, x, y,
calc_segment_point_u(x1, y1, x2, y2, x, y));
} }
//-------------------------------------------------------calc_intersection //-------------------------------------------------------calc_intersection
AGG_INLINE bool calc_intersection(double ax, AGG_INLINE bool calc_intersection(double ax, double ay, double bx, double by,
double ay, double cx, double cy, double dx, double dy,
double bx, double* x, double* y)
double by,
double cx,
double cy,
double dx,
double dy,
double* x,
double* y)
{ {
double num = (ay-cy) * (dx-cx) - (ax-cx) * (dy-cy); double num = (ay-cy) * (dx-cx) - (ax-cx) * (dy-cy);
double den = (bx-ax) * (dy-cy) - (by-ay) * (dx-cx); double den = (bx-ax) * (dy-cy) - (by-ay) * (dx-cx);
if (std::fabs(den) < intersection_epsilon) if(std::fabs(den) < intersection_epsilon) return false;
return false;
double r = num / den; double r = num / den;
*x = ax + r * (bx-ax); *x = ax + r * (bx-ax);
*y = ay + r * (by-ay); *y = ay + r * (by-ay);
@ -137,8 +147,8 @@ AGG_INLINE bool calc_intersection(double ax,
} }
//-----------------------------------------------------intersection_exists //-----------------------------------------------------intersection_exists
AGG_INLINE bool AGG_INLINE bool intersection_exists(double x1, double y1, double x2, double y2,
intersection_exists(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) double x3, double y3, double x4, double y4)
{ {
// It's less expensive but you can't control the // It's less expensive but you can't control the
// boundary conditions: Less or LessEqual // boundary conditions: Less or LessEqual
@ -146,8 +156,10 @@ AGG_INLINE bool
double dy1 = y2 - y1; double dy1 = y2 - y1;
double dx2 = x4 - x3; double dx2 = x4 - x3;
double dy2 = y4 - y3; double dy2 = y4 - y3;
return ((x3 - x2) * dy1 - (y3 - y2) * dx1 < 0.0) != ((x4 - x2) * dy1 - (y4 - y2) * dx1 < 0.0) && return ((x3 - x2) * dy1 - (y3 - y2) * dx1 < 0.0) !=
((x1 - x4) * dy2 - (y1 - y4) * dx2 < 0.0) != ((x2 - x4) * dy2 - (y2 - y4) * dx2 < 0.0); ((x4 - x2) * dy1 - (y4 - y2) * dx1 < 0.0) &&
((x1 - x4) * dy2 - (y1 - y4) * dx2 < 0.0) !=
((x2 - x4) * dy2 - (y2 - y4) * dx2 < 0.0);
// It's is more expensive but more flexible // It's is more expensive but more flexible
// in terms of boundary conditions. // in terms of boundary conditions.
@ -162,7 +174,10 @@ AGG_INLINE bool
} }
//--------------------------------------------------------calc_orthogonal //--------------------------------------------------------calc_orthogonal
AGG_INLINE void calc_orthogonal(double thickness, double x1, double y1, double x2, double y2, double* x, double* y) AGG_INLINE void calc_orthogonal(double thickness,
double x1, double y1,
double x2, double y2,
double* x, double* y)
{ {
double dx = x2 - x1; double dx = x2 - x1;
double dy = y2 - y1; double dy = y2 - y1;
@ -172,8 +187,11 @@ AGG_INLINE void calc_orthogonal(double thickness, double x1, double y1, double x
} }
//--------------------------------------------------------dilate_triangle //--------------------------------------------------------dilate_triangle
AGG_INLINE void AGG_INLINE void dilate_triangle(double x1, double y1,
dilate_triangle(double x1, double y1, double x2, double y2, double x3, double y3, double* x, double* y, double d) double x2, double y2,
double x3, double y3,
double *x, double* y,
double d)
{ {
double dx1=0.0; double dx1=0.0;
double dy1=0.0; double dy1=0.0;
@ -192,29 +210,24 @@ AGG_INLINE void
calc_orthogonal(d, x2, y2, x3, y3, &dx2, &dy2); calc_orthogonal(d, x2, y2, x3, y3, &dx2, &dy2);
calc_orthogonal(d, x3, y3, x1, y1, &dx3, &dy3); calc_orthogonal(d, x3, y3, x1, y1, &dx3, &dy3);
} }
*x++ = x1 + dx1; *x++ = x1 + dx1; *y++ = y1 + dy1;
*y++ = y1 + dy1; *x++ = x2 + dx1; *y++ = y2 + dy1;
*x++ = x2 + dx1; *x++ = x2 + dx2; *y++ = y2 + dy2;
*y++ = y2 + dy1; *x++ = x3 + dx2; *y++ = y3 + dy2;
*x++ = x2 + dx2; *x++ = x3 + dx3; *y++ = y3 + dy3;
*y++ = y2 + dy2; *x++ = x1 + dx3; *y++ = y1 + dy3;
*x++ = x3 + dx2;
*y++ = y3 + dy2;
*x++ = x3 + dx3;
*y++ = y3 + dy3;
*x++ = x1 + dx3;
*y++ = y1 + dy3;
} }
//------------------------------------------------------calc_triangle_area //------------------------------------------------------calc_triangle_area
AGG_INLINE double calc_triangle_area(double x1, double y1, double x2, double y2, double x3, double y3) AGG_INLINE double calc_triangle_area(double x1, double y1,
double x2, double y2,
double x3, double y3)
{ {
return (x1*y2 - x2*y1 + x2*y3 - x3*y2 + x3*y1 - x1*y3) * 0.5; return (x1*y2 - x2*y1 + x2*y3 - x3*y2 + x3*y1 - x1*y3) * 0.5;
} }
//-------------------------------------------------------calc_polygon_area //-------------------------------------------------------calc_polygon_area
template<class Storage> template<class Storage> double calc_polygon_area(const Storage& st)
double calc_polygon_area(const Storage& st)
{ {
unsigned i; unsigned i;
double sum = 0.0; double sum = 0.0;
@ -238,6 +251,7 @@ double calc_polygon_area(const Storage& st)
extern int16u g_sqrt_table[1024]; extern int16u g_sqrt_table[1024];
extern int8 g_elder_bit_table[256]; extern int8 g_elder_bit_table[256];
//---------------------------------------------------------------fast_sqrt //---------------------------------------------------------------fast_sqrt
//Fast integer Sqrt - really fast: no cycles, divisions or multiplications //Fast integer Sqrt - really fast: no cycles, divisions or multiplications
#if defined(_MSC_VER) #if defined(_MSC_VER)
@ -251,7 +265,8 @@ AGG_INLINE unsigned fast_sqrt(unsigned val)
//The key command here is bsr - determination the number of the most //The key command here is bsr - determination the number of the most
//significant bit of the value. For other processors //significant bit of the value. For other processors
//(and maybe compilers) the pure C "#else" section is used. //(and maybe compilers) the pure C "#else" section is used.
__asm { __asm
{
mov ebx, val mov ebx, val
mov edx, 11 mov edx, 11
bsr ecx, ebx bsr ecx, ebx
@ -322,6 +337,9 @@ AGG_INLINE unsigned fast_sqrt(unsigned val)
#pragma warning(pop) #pragma warning(pop)
#endif #endif
//--------------------------------------------------------------------besj //--------------------------------------------------------------------besj
// Function BESJ calculates Bessel function of first kind of order n // Function BESJ calculates Bessel function of first kind of order n
// Arguments: // Arguments:
@ -354,8 +372,7 @@ inline double besj(double x, int n)
double b = 0; double b = 0;
if(std::fabs(x) <= d) if(std::fabs(x) <= d)
{ {
if (n != 0) if(n != 0) return 0;
return 0;
return 1; return 1;
} }
double b1 = 0; // b1 is the value from the previous iteration double b1 = 0; // b1 is the value from the previous iteration
@ -414,6 +431,7 @@ inline double besj(double x, int n)
} }
} }
} // namespace agg }
#endif #endif

View file

@ -23,19 +23,38 @@
#include "agg_math.h" #include "agg_math.h"
#include "agg_vertex_sequence.h" #include "agg_vertex_sequence.h"
namespace agg { namespace agg
{
//-------------------------------------------------------------line_cap_e //-------------------------------------------------------------line_cap_e
enum line_cap_e { butt_cap, square_cap, round_cap }; enum line_cap_e
{
butt_cap,
square_cap,
round_cap
};
//------------------------------------------------------------line_join_e //------------------------------------------------------------line_join_e
enum line_join_e { miter_join = 0, miter_join_revert = 1, round_join = 2, bevel_join = 3, miter_join_round = 4 }; enum line_join_e
{
miter_join = 0,
miter_join_revert = 1,
round_join = 2,
bevel_join = 3,
miter_join_round = 4
};
//-----------------------------------------------------------inner_join_e //-----------------------------------------------------------inner_join_e
enum inner_join_e { inner_bevel, inner_miter, inner_jag, inner_round }; enum inner_join_e
{
inner_bevel,
inner_miter,
inner_jag,
inner_round
};
//------------------------------------------------------------math_stroke //------------------------------------------------------------math_stroke
template<class VertexConsumer> template<class VertexConsumer> class math_stroke
class math_stroke
{ {
public: public:
typedef typename VertexConsumer::value_type coord_type; typedef typename VertexConsumer::value_type coord_type;
@ -61,7 +80,10 @@ class math_stroke
double inner_miter_limit() const { return m_inner_miter_limit; } double inner_miter_limit() const { return m_inner_miter_limit; }
double approximation_scale() const { return m_approx_scale; } double approximation_scale() const { return m_approx_scale; }
void calc_cap(VertexConsumer& vc, const vertex_dist& v0, const vertex_dist& v1, double len); void calc_cap(VertexConsumer& vc,
const vertex_dist& v0,
const vertex_dist& v1,
double len);
void calc_join(VertexConsumer& vc, void calc_join(VertexConsumer& vc,
const vertex_dist& v0, const vertex_dist& v0,
@ -71,18 +93,22 @@ class math_stroke
double len2); double len2);
private: private:
AGG_INLINE void add_vertex(VertexConsumer& vc, double x, double y) { vc.add(coord_type(x, y)); } AGG_INLINE void add_vertex(VertexConsumer& vc, double x, double y)
{
vc.add(coord_type(x, y));
}
void calc_arc(VertexConsumer& vc, double x, double y, double dx1, double dy1, double dx2, double dy2); void calc_arc(VertexConsumer& vc,
double x, double y,
double dx1, double dy1,
double dx2, double dy2);
void calc_miter(VertexConsumer& vc, void calc_miter(VertexConsumer& vc,
const vertex_dist& v0, const vertex_dist& v0,
const vertex_dist& v1, const vertex_dist& v1,
const vertex_dist& v2, const vertex_dist& v2,
double dx1, double dx1, double dy1,
double dy1, double dx2, double dy2,
double dx2,
double dy2,
line_join_e lj, line_join_e lj,
double mlimit, double mlimit,
double dbevel); double dbevel);
@ -100,23 +126,22 @@ class math_stroke
}; };
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
template<class VC> template<class VC> math_stroke<VC>::math_stroke() :
math_stroke<VC>::math_stroke() m_width(0.5),
: m_width(0.5) m_width_abs(0.5),
, m_width_abs(0.5) m_width_eps(0.5/1024.0),
, m_width_eps(0.5 / 1024.0) m_width_sign(1),
, m_width_sign(1) m_miter_limit(4.0),
, m_miter_limit(4.0) m_inner_miter_limit(1.01),
, m_inner_miter_limit(1.01) m_approx_scale(1.0),
, m_approx_scale(1.0) m_line_cap(butt_cap),
, m_line_cap(butt_cap) m_line_join(miter_join),
, m_line_join(miter_join) m_inner_join(inner_miter)
, m_inner_join(inner_miter) {
{} }
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
template<class VC> template<class VC> void math_stroke<VC>::width(double w)
void math_stroke<VC>::width(double w)
{ {
m_width = w * 0.5; m_width = w * 0.5;
if(m_width < 0) if(m_width < 0)
@ -133,15 +158,17 @@ void math_stroke<VC>::width(double w)
} }
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
template<class VC> template<class VC> void math_stroke<VC>::miter_limit_theta(double t)
void math_stroke<VC>::miter_limit_theta(double t)
{ {
m_miter_limit = 1.0 / std::sin(t * 0.5) ; m_miter_limit = 1.0 / std::sin(t * 0.5) ;
} }
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
template<class VC> template<class VC>
void math_stroke<VC>::calc_arc(VC& vc, double x, double y, double dx1, double dy1, double dx2, double dy2) void math_stroke<VC>::calc_arc(VC& vc,
double x, double y,
double dx1, double dy1,
double dx2, double dy2)
{ {
double a1 = std::atan2(dy1 * m_width_sign, dx1 * m_width_sign); double a1 = std::atan2(dy1 * m_width_sign, dx1 * m_width_sign);
double a2 = std::atan2(dy2 * m_width_sign, dx2 * m_width_sign); double a2 = std::atan2(dy2 * m_width_sign, dx2 * m_width_sign);
@ -153,8 +180,7 @@ void math_stroke<VC>::calc_arc(VC& vc, double x, double y, double dx1, double dy
add_vertex(vc, x + dx1, y + dy1); add_vertex(vc, x + dx1, y + dy1);
if(m_width_sign > 0) if(m_width_sign > 0)
{ {
if (a1 > a2) if(a1 > a2) a2 += 2 * pi;
a2 += 2 * pi;
n = int((a2 - a1) / da); n = int((a2 - a1) / da);
da = (a2 - a1) / (n + 1); da = (a2 - a1) / (n + 1);
a1 += da; a1 += da;
@ -166,8 +192,7 @@ void math_stroke<VC>::calc_arc(VC& vc, double x, double y, double dx1, double dy
} }
else else
{ {
if (a1 < a2) if(a1 < a2) a2 -= 2 * pi;
a2 -= 2 * pi;
n = int((a1 - a2) / da); n = int((a1 - a2) / da);
da = (a1 - a2) / (n + 1); da = (a1 - a2) / (n + 1);
a1 -= da; a1 -= da;
@ -186,10 +211,8 @@ void math_stroke<VC>::calc_miter(VC& vc,
const vertex_dist& v0, const vertex_dist& v0,
const vertex_dist& v1, const vertex_dist& v1,
const vertex_dist& v2, const vertex_dist& v2,
double dx1, double dx1, double dy1,
double dy1, double dx2, double dy2,
double dx2,
double dy2,
line_join_e lj, line_join_e lj,
double mlimit, double mlimit,
double dbevel) double dbevel)
@ -201,16 +224,11 @@ void math_stroke<VC>::calc_miter(VC& vc,
bool miter_limit_exceeded = true; // Assume the worst bool miter_limit_exceeded = true; // Assume the worst
bool intersection_failed = true; // Assume the worst bool intersection_failed = true; // Assume the worst
if (calc_intersection(v0.x + dx1, if(calc_intersection(v0.x + dx1, v0.y - dy1,
v0.y - dy1, v1.x + dx1, v1.y - dy1,
v1.x + dx1, v1.x + dx2, v1.y - dy2,
v1.y - dy1, v2.x + dx2, v2.y - dy2,
v1.x + dx2, &xi, &yi))
v1.y - dy2,
v2.x + dx2,
v2.y - dy2,
&xi,
&yi))
{ {
// Calculation of the intersection succeeded // Calculation of the intersection succeeded
//--------------------- //---------------------
@ -272,8 +290,10 @@ void math_stroke<VC>::calc_miter(VC& vc,
if(intersection_failed) if(intersection_failed)
{ {
mlimit *= m_width_sign; mlimit *= m_width_sign;
add_vertex(vc, v1.x + dx1 + dy1 * mlimit, v1.y - dy1 + dx1 * mlimit); add_vertex(vc, v1.x + dx1 + dy1 * mlimit,
add_vertex(vc, v1.x + dx2 - dy2 * mlimit, v1.y - dy2 - dx2 * mlimit); v1.y - dy1 + dx1 * mlimit);
add_vertex(vc, v1.x + dx2 - dy2 * mlimit,
v1.y - dy2 - dx2 * mlimit);
} }
else else
{ {
@ -282,8 +302,10 @@ void math_stroke<VC>::calc_miter(VC& vc,
double x2 = v1.x + dx2; double x2 = v1.x + dx2;
double y2 = v1.y - dy2; double y2 = v1.y - dy2;
di = (lim - dbevel) / (di - dbevel); di = (lim - dbevel) / (di - dbevel);
add_vertex(vc, x1 + (xi - x1) * di, y1 + (yi - y1) * di); add_vertex(vc, x1 + (xi - x1) * di,
add_vertex(vc, x2 + (xi - x2) * di, y2 + (yi - y2) * di); y1 + (yi - y1) * di);
add_vertex(vc, x2 + (xi - x2) * di,
y2 + (yi - y2) * di);
} }
break; break;
} }
@ -292,7 +314,10 @@ void math_stroke<VC>::calc_miter(VC& vc,
//--------------------------------------------------------stroke_calc_cap //--------------------------------------------------------stroke_calc_cap
template<class VC> template<class VC>
void math_stroke<VC>::calc_cap(VC& vc, const vertex_dist& v0, const vertex_dist& v1, double len) void math_stroke<VC>::calc_cap(VC& vc,
const vertex_dist& v0,
const vertex_dist& v1,
double len)
{ {
vc.remove_all(); vc.remove_all();
@ -329,7 +354,8 @@ void math_stroke<VC>::calc_cap(VC& vc, const vertex_dist& v0, const vertex_dist&
a1 += da; a1 += da;
for(i = 0; i < n; i++) for(i = 0; i < n; i++)
{ {
add_vertex(vc, v0.x + std::cos(a1) * m_width, v0.y + std::sin(a1) * m_width); add_vertex(vc, v0.x + std::cos(a1) * m_width,
v0.y + std::sin(a1) * m_width);
a1 += da; a1 += da;
} }
} }
@ -339,7 +365,8 @@ void math_stroke<VC>::calc_cap(VC& vc, const vertex_dist& v0, const vertex_dist&
a1 -= da; a1 -= da;
for(i = 0; i < n; i++) for(i = 0; i < n; i++)
{ {
add_vertex(vc, v0.x + std::cos(a1) * m_width, v0.y + std::sin(a1) * m_width); add_vertex(vc, v0.x + std::cos(a1) * m_width,
v0.y + std::sin(a1) * m_width);
a1 -= da; a1 -= da;
} }
} }
@ -382,7 +409,10 @@ void math_stroke<VC>::calc_join(VC& vc,
break; break;
case inner_miter: case inner_miter:
calc_miter(vc, v0, v1, v2, dx1, dy1, dx2, dy2, miter_join_revert, limit, 0); calc_miter(vc,
v0, v1, v2, dx1, dy1, dx2, dy2,
miter_join_revert,
limit, 0);
break; break;
case inner_jag: case inner_jag:
@ -390,7 +420,10 @@ void math_stroke<VC>::calc_join(VC& vc,
cp = (dx1-dx2) * (dx1-dx2) + (dy1-dy2) * (dy1-dy2); cp = (dx1-dx2) * (dx1-dx2) + (dy1-dy2) * (dy1-dy2);
if(cp < len1 * len1 && cp < len2 * len2) if(cp < len1 * len1 && cp < len2 * len2)
{ {
calc_miter(vc, v0, v1, v2, dx1, dy1, dx2, dy2, miter_join_revert, limit, 0); calc_miter(vc,
v0, v1, v2, dx1, dy1, dx2, dy2,
miter_join_revert,
limit, 0);
} }
else else
{ {
@ -445,16 +478,11 @@ void math_stroke<VC>::calc_join(VC& vc,
//------------------- //-------------------
if(m_approx_scale * (m_width_abs - dbevel) < m_width_eps) if(m_approx_scale * (m_width_abs - dbevel) < m_width_eps)
{ {
if (calc_intersection(v0.x + dx1, if(calc_intersection(v0.x + dx1, v0.y - dy1,
v0.y - dy1, v1.x + dx1, v1.y - dy1,
v1.x + dx1, v1.x + dx2, v1.y - dy2,
v1.y - dy1, v2.x + dx2, v2.y - dy2,
v1.x + dx2, &dx, &dy))
v1.y - dy2,
v2.x + dx2,
v2.y - dy2,
&dx,
&dy))
{ {
add_vertex(vc, dx, dy); add_vertex(vc, dx, dy);
} }
@ -471,7 +499,11 @@ void math_stroke<VC>::calc_join(VC& vc,
case miter_join: case miter_join:
case miter_join_revert: case miter_join_revert:
case miter_join_round: case miter_join_round:
calc_miter(vc, v0, v1, v2, dx1, dy1, dx2, dy2, m_line_join, m_miter_limit, dbevel); calc_miter(vc,
v0, v1, v2, dx1, dy1, dx2, dy2,
m_line_join,
m_miter_limit,
dbevel);
break; break;
case round_join: case round_join:
@ -486,6 +518,9 @@ void math_stroke<VC>::calc_join(VC& vc,
} }
} }
} // namespace agg
}
#endif #endif

View file

@ -17,7 +17,8 @@
#include "agg_math.h" #include "agg_math.h"
namespace agg { namespace agg
{
template<class VertexSource> template<class VertexSource>
double path_length(VertexSource& vs, unsigned path_id = 0) double path_length(VertexSource& vs, unsigned path_id = 0)
{ {
@ -59,6 +60,6 @@ double path_length(VertexSource& vs, unsigned path_id = 0)
} }
return len; return len;
} }
} // namespace agg }
#endif #endif

View file

@ -22,7 +22,9 @@
#include "agg_array.h" #include "agg_array.h"
#include "agg_bezier_arc.h" #include "agg_bezier_arc.h"
namespace agg { namespace agg
{
//----------------------------------------------------vertex_block_storage //----------------------------------------------------vertex_block_storage
template<class T, unsigned BlockShift=8, unsigned BlockPool=256> template<class T, unsigned BlockShift=8, unsigned BlockPool=256>
@ -30,7 +32,8 @@ class vertex_block_storage
{ {
public: public:
// Allocation parameters // Allocation parameters
enum block_scale_e { enum block_scale_e
{
block_shift = BlockShift, block_shift = BlockShift,
block_size = 1 << block_shift, block_size = 1 << block_shift,
block_mask = block_size - 1, block_mask = block_size - 1,
@ -77,6 +80,7 @@ class vertex_block_storage
int8u** m_cmd_blocks; int8u** m_cmd_blocks;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
void vertex_block_storage<T,S,P>::free_all() void vertex_block_storage<T,S,P>::free_all()
@ -86,7 +90,10 @@ void vertex_block_storage<T, S, P>::free_all()
T** coord_blk = m_coord_blocks + m_total_blocks - 1; T** coord_blk = m_coord_blocks + m_total_blocks - 1;
while(m_total_blocks--) while(m_total_blocks--)
{ {
pod_allocator<T>::deallocate(*coord_blk, block_size * 2 + block_size / (sizeof(T) / sizeof(unsigned char))); pod_allocator<T>::deallocate(
*coord_blk,
block_size * 2 +
block_size / (sizeof(T) / sizeof(unsigned char)));
--coord_blk; --coord_blk;
} }
pod_allocator<T*>::deallocate(m_coord_blocks, m_max_blocks * 2); pod_allocator<T*>::deallocate(m_coord_blocks, m_max_blocks * 2);
@ -107,29 +114,31 @@ vertex_block_storage<T, S, P>::~vertex_block_storage()
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
vertex_block_storage<T, S, P>::vertex_block_storage() vertex_block_storage<T,S,P>::vertex_block_storage() :
: m_total_vertices(0) m_total_vertices(0),
, m_total_blocks(0) m_total_blocks(0),
, m_max_blocks(0) m_max_blocks(0),
, m_coord_blocks(0) m_coord_blocks(0),
, m_cmd_blocks(0) m_cmd_blocks(0)
{} {
}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
vertex_block_storage<T, S, P>::vertex_block_storage(const vertex_block_storage<T, S, P>& v) vertex_block_storage<T,S,P>::vertex_block_storage(const vertex_block_storage<T,S,P>& v) :
: m_total_vertices(0) m_total_vertices(0),
, m_total_blocks(0) m_total_blocks(0),
, m_max_blocks(0) m_max_blocks(0),
, m_coord_blocks(0) m_coord_blocks(0),
, m_cmd_blocks(0) m_cmd_blocks(0)
{ {
*this = v; *this = v;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
const vertex_block_storage<T, S, P>& vertex_block_storage<T, S, P>::operator=(const vertex_block_storage<T, S, P>& v) const vertex_block_storage<T,S,P>&
vertex_block_storage<T,S,P>::operator = (const vertex_block_storage<T,S,P>& v)
{ {
remove_all(); remove_all();
unsigned i; unsigned i;
@ -151,7 +160,8 @@ inline void vertex_block_storage<T, S, P>::remove_all()
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline void vertex_block_storage<T, S, P>::add_vertex(double x, double y, unsigned cmd) inline void vertex_block_storage<T,S,P>::add_vertex(double x, double y,
unsigned cmd)
{ {
T* coord_ptr = 0; T* coord_ptr = 0;
*storage_ptrs(&coord_ptr) = (int8u)cmd; *storage_ptrs(&coord_ptr) = (int8u)cmd;
@ -162,7 +172,8 @@ inline void vertex_block_storage<T, S, P>::add_vertex(double x, double y, unsign
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline void vertex_block_storage<T, S, P>::modify_vertex(unsigned idx, double x, double y) inline void vertex_block_storage<T,S,P>::modify_vertex(unsigned idx,
double x, double y)
{ {
T* pv = m_coord_blocks[idx >> block_shift] + ((idx & block_mask) << 1); T* pv = m_coord_blocks[idx >> block_shift] + ((idx & block_mask) << 1);
pv[0] = T(x); pv[0] = T(x);
@ -171,7 +182,9 @@ inline void vertex_block_storage<T, S, P>::modify_vertex(unsigned idx, double x,
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline void vertex_block_storage<T, S, P>::modify_vertex(unsigned idx, double x, double y, unsigned cmd) inline void vertex_block_storage<T,S,P>::modify_vertex(unsigned idx,
double x, double y,
unsigned cmd)
{ {
unsigned block = idx >> block_shift; unsigned block = idx >> block_shift;
unsigned offset = idx & block_mask; unsigned offset = idx & block_mask;
@ -183,7 +196,8 @@ inline void vertex_block_storage<T, S, P>::modify_vertex(unsigned idx, double x,
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline void vertex_block_storage<T, S, P>::modify_command(unsigned idx, unsigned cmd) inline void vertex_block_storage<T,S,P>::modify_command(unsigned idx,
unsigned cmd)
{ {
m_cmd_blocks[idx >> block_shift][idx & block_mask] = (int8u)cmd; m_cmd_blocks[idx >> block_shift][idx & block_mask] = (int8u)cmd;
} }
@ -199,12 +213,8 @@ inline void vertex_block_storage<T, S, P>::swap_vertices(unsigned v1, unsigned v
T* pv1 = m_coord_blocks[b1] + (o1 << 1); T* pv1 = m_coord_blocks[b1] + (o1 << 1);
T* pv2 = m_coord_blocks[b2] + (o2 << 1); T* pv2 = m_coord_blocks[b2] + (o2 << 1);
T val; T val;
val = pv1[0]; val = pv1[0]; pv1[0] = pv2[0]; pv2[0] = val;
pv1[0] = pv2[0]; val = pv1[1]; pv1[1] = pv2[1]; pv2[1] = val;
pv2[0] = val;
val = pv1[1];
pv1[1] = pv2[1];
pv2[1] = val;
int8u cmd = m_cmd_blocks[b1][o1]; int8u cmd = m_cmd_blocks[b1][o1];
m_cmd_blocks[b1][o1] = m_cmd_blocks[b2][o2]; m_cmd_blocks[b1][o1] = m_cmd_blocks[b2][o2];
m_cmd_blocks[b2][o2] = cmd; m_cmd_blocks[b2][o2] = cmd;
@ -214,8 +224,7 @@ inline void vertex_block_storage<T, S, P>::swap_vertices(unsigned v1, unsigned v
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline unsigned vertex_block_storage<T,S,P>::last_command() const inline unsigned vertex_block_storage<T,S,P>::last_command() const
{ {
if (m_total_vertices) if(m_total_vertices) return command(m_total_vertices - 1);
return command(m_total_vertices - 1);
return path_cmd_stop; return path_cmd_stop;
} }
@ -223,8 +232,7 @@ inline unsigned vertex_block_storage<T, S, P>::last_command() const
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline unsigned vertex_block_storage<T,S,P>::last_vertex(double* x, double* y) const inline unsigned vertex_block_storage<T,S,P>::last_vertex(double* x, double* y) const
{ {
if (m_total_vertices) if(m_total_vertices) return vertex(m_total_vertices - 1, x, y);
return vertex(m_total_vertices - 1, x, y);
return path_cmd_stop; return path_cmd_stop;
} }
@ -232,8 +240,7 @@ inline unsigned vertex_block_storage<T, S, P>::last_vertex(double* x, double* y)
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline unsigned vertex_block_storage<T,S,P>::prev_vertex(double* x, double* y) const inline unsigned vertex_block_storage<T,S,P>::prev_vertex(double* x, double* y) const
{ {
if (m_total_vertices > 1) if(m_total_vertices > 1) return vertex(m_total_vertices - 2, x, y);
return vertex(m_total_vertices - 2, x, y);
return path_cmd_stop; return path_cmd_stop;
} }
@ -270,7 +277,8 @@ inline unsigned vertex_block_storage<T, S, P>::total_vertices() const
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T, unsigned S, unsigned P> template<class T, unsigned S, unsigned P>
inline unsigned vertex_block_storage<T, S, P>::vertex(unsigned idx, double* x, double* y) const inline unsigned vertex_block_storage<T,S,P>::vertex(unsigned idx,
double* x, double* y) const
{ {
unsigned nb = idx >> block_shift; unsigned nb = idx >> block_shift;
const T* pv = m_coord_blocks[nb] + ((idx & block_mask) << 1); const T* pv = m_coord_blocks[nb] + ((idx & block_mask) << 1);
@ -292,15 +300,21 @@ void vertex_block_storage<T, S, P>::allocate_block(unsigned nb)
{ {
if(nb >= m_max_blocks) if(nb >= m_max_blocks)
{ {
T** new_coords = pod_allocator<T*>::allocate((m_max_blocks + block_pool) * 2); T** new_coords =
pod_allocator<T*>::allocate((m_max_blocks + block_pool) * 2);
unsigned char** new_cmds = (unsigned char**)(new_coords + m_max_blocks + block_pool); unsigned char** new_cmds =
(unsigned char**)(new_coords + m_max_blocks + block_pool);
if(m_coord_blocks) if(m_coord_blocks)
{ {
memcpy(new_coords, m_coord_blocks, m_max_blocks * sizeof(T*)); memcpy(new_coords,
m_coord_blocks,
m_max_blocks * sizeof(T*));
memcpy(new_cmds, m_cmd_blocks, m_max_blocks * sizeof(unsigned char*)); memcpy(new_cmds,
m_cmd_blocks,
m_max_blocks * sizeof(unsigned char*));
pod_allocator<T*>::deallocate(m_coord_blocks, m_max_blocks * 2); pod_allocator<T*>::deallocate(m_coord_blocks, m_max_blocks * 2);
} }
@ -308,9 +322,12 @@ void vertex_block_storage<T, S, P>::allocate_block(unsigned nb)
m_cmd_blocks = new_cmds; m_cmd_blocks = new_cmds;
m_max_blocks += block_pool; m_max_blocks += block_pool;
} }
m_coord_blocks[nb] = pod_allocator<T>::allocate(block_size * 2 + block_size / (sizeof(T) / sizeof(unsigned char))); m_coord_blocks[nb] =
pod_allocator<T>::allocate(block_size * 2 +
block_size / (sizeof(T) / sizeof(unsigned char)));
m_cmd_blocks[nb] = (unsigned char*)(m_coord_blocks[nb] + block_size * 2); m_cmd_blocks[nb] =
(unsigned char*)(m_coord_blocks[nb] + block_size * 2);
m_total_blocks++; m_total_blocks++;
} }
@ -328,27 +345,29 @@ int8u* vertex_block_storage<T, S, P>::storage_ptrs(T** xy_ptr)
return m_cmd_blocks[nb] + (m_total_vertices & block_mask); return m_cmd_blocks[nb] + (m_total_vertices & block_mask);
} }
//-----------------------------------------------------poly_plain_adaptor //-----------------------------------------------------poly_plain_adaptor
template<class T> template<class T> class poly_plain_adaptor
class poly_plain_adaptor
{ {
public: public:
typedef T value_type; typedef T value_type;
poly_plain_adaptor() poly_plain_adaptor() :
: m_data(0) m_data(0),
, m_ptr(0) m_ptr(0),
, m_end(0) m_end(0),
, m_closed(false) m_closed(false),
, m_stop(false) m_stop(false)
{} {}
poly_plain_adaptor(const T* data, unsigned num_points, bool closed) poly_plain_adaptor(const T* data, unsigned num_points, bool closed) :
: m_data(data) m_data(data),
, m_ptr(data) m_ptr(data),
, m_end(data + num_points * 2) m_end(data + num_points * 2),
, m_closed(closed) m_closed(closed),
, m_stop(false) m_stop(false)
{} {}
void init(const T* data, unsigned num_points, bool closed) void init(const T* data, unsigned num_points, bool closed)
@ -379,7 +398,8 @@ class poly_plain_adaptor
if(m_closed && !m_stop) if(m_closed && !m_stop)
{ {
m_stop = true; m_stop = true;
return path_cmd_end_poly | static_cast<agg::path_commands_e>(path_flags_close); return path_cmd_end_poly
| static_cast<agg::path_commands_e>(path_flags_close);
} }
return path_cmd_stop; return path_cmd_stop;
} }
@ -392,25 +412,28 @@ class poly_plain_adaptor
bool m_stop; bool m_stop;
}; };
//-------------------------------------------------poly_container_adaptor //-------------------------------------------------poly_container_adaptor
template<class Container> template<class Container> class poly_container_adaptor
class poly_container_adaptor
{ {
public: public:
typedef typename Container::value_type vertex_type; typedef typename Container::value_type vertex_type;
poly_container_adaptor() poly_container_adaptor() :
: m_container(0) m_container(0),
, m_index(0) m_index(0),
, m_closed(false) m_closed(false),
, m_stop(false) m_stop(false)
{} {}
poly_container_adaptor(const Container& data, bool closed) poly_container_adaptor(const Container& data, bool closed) :
: m_container(&data) m_container(&data),
, m_index(0) m_index(0),
, m_closed(closed) m_closed(closed),
, m_stop(false) m_stop(false)
{} {}
void init(const Container& data, bool closed) void init(const Container& data, bool closed)
@ -441,7 +464,8 @@ class poly_container_adaptor
if(m_closed && !m_stop) if(m_closed && !m_stop)
{ {
m_stop = true; m_stop = true;
return path_cmd_end_poly | static_cast<agg::path_commands_e>(path_flags_close); return path_cmd_end_poly
| static_cast<agg::path_commands_e>(path_flags_close);
} }
return path_cmd_stop; return path_cmd_stop;
} }
@ -453,25 +477,26 @@ class poly_container_adaptor
bool m_stop; bool m_stop;
}; };
//-----------------------------------------poly_container_reverse_adaptor //-----------------------------------------poly_container_reverse_adaptor
template<class Container> template<class Container> class poly_container_reverse_adaptor
class poly_container_reverse_adaptor
{ {
public: public:
typedef typename Container::value_type vertex_type; typedef typename Container::value_type vertex_type;
poly_container_reverse_adaptor() poly_container_reverse_adaptor() :
: m_container(0) m_container(0),
, m_index(-1) m_index(-1),
, m_closed(false) m_closed(false),
, m_stop(false) m_stop(false)
{} {}
poly_container_reverse_adaptor(const Container& data, bool closed) poly_container_reverse_adaptor(const Container& data, bool closed) :
: m_container(&data) m_container(&data),
, m_index(-1) m_index(-1),
, m_closed(closed) m_closed(closed),
, m_stop(false) m_stop(false)
{} {}
void init(const Container& data, bool closed) void init(const Container& data, bool closed)
@ -502,7 +527,8 @@ class poly_container_reverse_adaptor
if(m_closed && !m_stop) if(m_closed && !m_stop)
{ {
m_stop = true; m_stop = true;
return path_cmd_end_poly | static_cast<agg::path_commands_e>(path_flags_close); return path_cmd_end_poly
| static_cast<agg::path_commands_e>(path_flags_close);
} }
return path_cmd_stop; return path_cmd_stop;
} }
@ -514,17 +540,19 @@ class poly_container_reverse_adaptor
bool m_stop; bool m_stop;
}; };
//--------------------------------------------------------line_adaptor //--------------------------------------------------------line_adaptor
class line_adaptor class line_adaptor
{ {
public: public:
typedef double value_type; typedef double value_type;
line_adaptor() line_adaptor() : m_line(m_coord, 2, false) {}
: m_line(m_coord, 2, false) line_adaptor(double x1, double y1, double x2, double y2) :
{} m_line(m_coord, 2, false)
line_adaptor(double x1, double y1, double x2, double y2)
: m_line(m_coord, 2, false)
{ {
m_coord[0] = x1; m_coord[0] = x1;
m_coord[1] = y1; m_coord[1] = y1;
@ -541,15 +569,33 @@ class line_adaptor
m_line.rewind(0); m_line.rewind(0);
} }
void rewind(unsigned) { m_line.rewind(0); } void rewind(unsigned)
{
m_line.rewind(0);
}
unsigned vertex(double* x, double* y) { return m_line.vertex(x, y); } unsigned vertex(double* x, double* y)
{
return m_line.vertex(x, y);
}
private: private:
double m_coord[4]; double m_coord[4];
poly_plain_adaptor<double> m_line; poly_plain_adaptor<double> m_line;
}; };
//---------------------------------------------------------------path_base //---------------------------------------------------------------path_base
// A container to store vertices with their flags. // A container to store vertices with their flags.
// A path consists of a number of contours separated with "move_to" // A path consists of a number of contours separated with "move_to"
@ -562,28 +608,16 @@ class line_adaptor
// //
// See also: vertex_source concept // See also: vertex_source concept
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexContainer> template<class VertexContainer> class path_base
class path_base
{ {
public: public:
typedef VertexContainer container_type; typedef VertexContainer container_type;
typedef path_base<VertexContainer> self_type; typedef path_base<VertexContainer> self_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
path_base() path_base() : m_vertices(), m_iterator(0) {}
: m_vertices() void remove_all() { m_vertices.remove_all(); m_iterator = 0; }
, m_iterator(0) void free_all() { m_vertices.free_all(); m_iterator = 0; }
{}
void remove_all()
{
m_vertices.remove_all();
m_iterator = 0;
}
void free_all()
{
m_vertices.free_all();
m_iterator = 0;
}
// Make path functions // Make path functions
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -601,25 +635,42 @@ class path_base
void vline_to(double y); void vline_to(double y);
void vline_rel(double dy); void vline_rel(double dy);
void arc_to(double rx, double ry, double angle, bool large_arc_flag, bool sweep_flag, double x, double y); void arc_to(double rx, double ry,
double angle,
bool large_arc_flag,
bool sweep_flag,
double x, double y);
void arc_rel(double rx, double ry, double angle, bool large_arc_flag, bool sweep_flag, double dx, double dy); void arc_rel(double rx, double ry,
double angle,
bool large_arc_flag,
bool sweep_flag,
double dx, double dy);
void curve3(double x_ctrl, double y_ctrl, double x_to, double y_to); void curve3(double x_ctrl, double y_ctrl,
double x_to, double y_to);
void curve3_rel(double dx_ctrl, double dy_ctrl, double dx_to, double dy_to); void curve3_rel(double dx_ctrl, double dy_ctrl,
double dx_to, double dy_to);
void curve3(double x_to, double y_to); void curve3(double x_to, double y_to);
void curve3_rel(double dx_to, double dy_to); void curve3_rel(double dx_to, double dy_to);
void curve4(double x_ctrl1, double y_ctrl1, double x_ctrl2, double y_ctrl2, double x_to, double y_to); void curve4(double x_ctrl1, double y_ctrl1,
double x_ctrl2, double y_ctrl2,
double x_to, double y_to);
void curve4_rel(double dx_ctrl1, double dy_ctrl1, double dx_ctrl2, double dy_ctrl2, double dx_to, double dy_to); void curve4_rel(double dx_ctrl1, double dy_ctrl1,
double dx_ctrl2, double dy_ctrl2,
double dx_to, double dy_to);
void curve4(double x_ctrl2, double y_ctrl2, double x_to, double y_to); void curve4(double x_ctrl2, double y_ctrl2,
double x_to, double y_to);
void curve4_rel(double x_ctrl2, double y_ctrl2,
double x_to, double y_to);
void curve4_rel(double x_ctrl2, double y_ctrl2, double x_to, double y_to);
void end_poly(unsigned flags = path_flags_close); void end_poly(unsigned flags = path_flags_close);
void close_polygon(unsigned flags = path_flags_none); void close_polygon(unsigned flags = path_flags_none);
@ -702,8 +753,7 @@ class path_base
{ {
if(calc_distance(x, y, x0, y0) > vertex_dist_epsilon) if(calc_distance(x, y, x0, y0) > vertex_dist_epsilon)
{ {
if (is_move_to(cmd)) if(is_move_to(cmd)) cmd = path_cmd_line_to;
cmd = path_cmd_line_to;
m_vertices.add_vertex(x, y, cmd); m_vertices.add_vertex(x, y, cmd);
} }
} }
@ -715,23 +765,25 @@ class path_base
} }
else else
{ {
if (is_move_to(cmd)) if(is_move_to(cmd)) cmd = path_cmd_line_to;
cmd = path_cmd_line_to;
} }
m_vertices.add_vertex(x, y, cmd); m_vertices.add_vertex(x, y, cmd);
} }
} }
while(!is_stop(cmd = vs.vertex(&x, &y))) while(!is_stop(cmd = vs.vertex(&x, &y)))
{ {
m_vertices.add_vertex(x, y, is_move_to(cmd) ? unsigned(path_cmd_line_to) : cmd); m_vertices.add_vertex(x, y, is_move_to(cmd) ?
unsigned(path_cmd_line_to) :
cmd);
} }
} }
} }
// Concatenate polygon/polyline. // Concatenate polygon/polyline.
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class T> template<class T> void concat_poly(const T* data,
void concat_poly(const T* data, unsigned num_points, bool closed) unsigned num_points,
bool closed)
{ {
poly_plain_adaptor<T> poly(data, num_points, closed); poly_plain_adaptor<T> poly(data, num_points, closed);
concat_path(poly); concat_path(poly);
@ -739,8 +791,9 @@ class path_base
// Join polygon/polyline continuously. // Join polygon/polyline continuously.
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class T> template<class T> void join_poly(const T* data,
void join_poly(const T* data, unsigned num_points, bool closed) unsigned num_points,
bool closed)
{ {
poly_plain_adaptor<T> poly(data, num_points, closed); poly_plain_adaptor<T> poly(data, num_points, closed);
join_path(poly); join_path(poly);
@ -759,8 +812,7 @@ class path_base
{ {
double x, y; double x, y;
unsigned cmd = m_vertices.vertex(path_id, &x, &y); unsigned cmd = m_vertices.vertex(path_id, &x, &y);
if (is_stop(cmd)) if(is_stop(cmd)) break;
break;
if(is_vertex(cmd)) if(is_vertex(cmd))
{ {
trans.transform(&x, &y); trans.transform(&x, &y);
@ -786,6 +838,8 @@ class path_base
} }
} }
private: private:
unsigned perceive_polygon_orientation(unsigned start, unsigned end); unsigned perceive_polygon_orientation(unsigned start, unsigned end);
void invert_polygon(unsigned start, unsigned end); void invert_polygon(unsigned start, unsigned end);
@ -805,6 +859,7 @@ unsigned path_base<VC>::start_new_path()
return m_vertices.total_vertices(); return m_vertices.total_vertices();
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
inline void path_base<VC>::rel_to_abs(double* x, double* y) const inline void path_base<VC>::rel_to_abs(double* x, double* y) const
@ -818,7 +873,8 @@ inline void path_base<VC>::rel_to_abs(double* x, double* y) const
*x += x2; *x += x2;
*y += y2; *y += y2;
} }
else if (!is_stop(m_vertices.last_command()) && is_vertex(m_vertices.prev_vertex(&x2, &y2))) else if (!is_stop(m_vertices.last_command()) &&
is_vertex(m_vertices.prev_vertex(&x2, &y2)))
{ {
*x += x2; *x += x2;
*y += y2; *y += y2;
@ -890,7 +946,11 @@ inline void path_base<VC>::vline_rel(double dy)
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::arc_to(double rx, double ry, double angle, bool large_arc_flag, bool sweep_flag, double x, double y) void path_base<VC>::arc_to(double rx, double ry,
double angle,
bool large_arc_flag,
bool sweep_flag,
double x, double y)
{ {
if(m_vertices.total_vertices() && is_vertex(m_vertices.last_command())) if(m_vertices.total_vertices() && is_vertex(m_vertices.last_command()))
{ {
@ -934,13 +994,11 @@ void path_base<VC>::arc_to(double rx, double ry, double angle, bool large_arc_fl
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::arc_rel(double rx, void path_base<VC>::arc_rel(double rx, double ry,
double ry,
double angle, double angle,
bool large_arc_flag, bool large_arc_flag,
bool sweep_flag, bool sweep_flag,
double dx, double dx, double dy)
double dy)
{ {
rel_to_abs(&dx, &dy); rel_to_abs(&dx, &dy);
arc_to(rx, ry, angle, large_arc_flag, sweep_flag, dx, dy); arc_to(rx, ry, angle, large_arc_flag, sweep_flag, dx, dy);
@ -948,7 +1006,8 @@ void path_base<VC>::arc_rel(double rx,
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::curve3(double x_ctrl, double y_ctrl, double x_to, double y_to) void path_base<VC>::curve3(double x_ctrl, double y_ctrl,
double x_to, double y_to)
{ {
m_vertices.add_vertex(x_ctrl, y_ctrl, path_cmd_curve3); m_vertices.add_vertex(x_ctrl, y_ctrl, path_cmd_curve3);
m_vertices.add_vertex(x_to, y_to, path_cmd_curve3); m_vertices.add_vertex(x_to, y_to, path_cmd_curve3);
@ -956,7 +1015,8 @@ void path_base<VC>::curve3(double x_ctrl, double y_ctrl, double x_to, double y_t
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::curve3_rel(double dx_ctrl, double dy_ctrl, double dx_to, double dy_to) void path_base<VC>::curve3_rel(double dx_ctrl, double dy_ctrl,
double dx_to, double dy_to)
{ {
rel_to_abs(&dx_ctrl, &dy_ctrl); rel_to_abs(&dx_ctrl, &dy_ctrl);
rel_to_abs(&dx_to, &dy_to); rel_to_abs(&dx_to, &dy_to);
@ -999,7 +1059,9 @@ void path_base<VC>::curve3_rel(double dx_to, double dy_to)
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::curve4(double x_ctrl1, double y_ctrl1, double x_ctrl2, double y_ctrl2, double x_to, double y_to) void path_base<VC>::curve4(double x_ctrl1, double y_ctrl1,
double x_ctrl2, double y_ctrl2,
double x_to, double y_to)
{ {
m_vertices.add_vertex(x_ctrl1, y_ctrl1, path_cmd_curve4); m_vertices.add_vertex(x_ctrl1, y_ctrl1, path_cmd_curve4);
m_vertices.add_vertex(x_ctrl2, y_ctrl2, path_cmd_curve4); m_vertices.add_vertex(x_ctrl2, y_ctrl2, path_cmd_curve4);
@ -1008,12 +1070,9 @@ void path_base<VC>::curve4(double x_ctrl1, double y_ctrl1, double x_ctrl2, doubl
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::curve4_rel(double dx_ctrl1, void path_base<VC>::curve4_rel(double dx_ctrl1, double dy_ctrl1,
double dy_ctrl1, double dx_ctrl2, double dy_ctrl2,
double dx_ctrl2, double dx_to, double dy_to)
double dy_ctrl2,
double dx_to,
double dy_to)
{ {
rel_to_abs(&dx_ctrl1, &dy_ctrl1); rel_to_abs(&dx_ctrl1, &dy_ctrl1);
rel_to_abs(&dx_ctrl2, &dy_ctrl2); rel_to_abs(&dx_ctrl2, &dy_ctrl2);
@ -1025,7 +1084,8 @@ void path_base<VC>::curve4_rel(double dx_ctrl1,
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::curve4(double x_ctrl2, double y_ctrl2, double x_to, double y_to) void path_base<VC>::curve4(double x_ctrl2, double y_ctrl2,
double x_to, double y_to)
{ {
double x0; double x0;
double y0; double y0;
@ -1050,7 +1110,8 @@ void path_base<VC>::curve4(double x_ctrl2, double y_ctrl2, double x_to, double y
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
void path_base<VC>::curve4_rel(double dx_ctrl2, double dy_ctrl2, double dx_to, double dy_to) void path_base<VC>::curve4_rel(double dx_ctrl2, double dy_ctrl2,
double dx_to, double dy_to)
{ {
rel_to_abs(&dx_ctrl2, &dy_ctrl2); rel_to_abs(&dx_ctrl2, &dy_ctrl2);
rel_to_abs(&dx_to, &dy_to); rel_to_abs(&dx_to, &dy_to);
@ -1155,14 +1216,14 @@ inline void path_base<VC>::rewind(unsigned path_id)
template<class VC> template<class VC>
inline unsigned path_base<VC>::vertex(double* x, double* y) inline unsigned path_base<VC>::vertex(double* x, double* y)
{ {
if (m_iterator >= m_vertices.total_vertices()) if(m_iterator >= m_vertices.total_vertices()) return path_cmd_stop;
return path_cmd_stop;
return m_vertices.vertex(m_iterator++, x, y); return m_vertices.vertex(m_iterator++, x, y);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
unsigned path_base<VC>::perceive_polygon_orientation(unsigned start, unsigned end) unsigned path_base<VC>::perceive_polygon_orientation(unsigned start,
unsigned end)
{ {
// Calculate signed area (double area to be exact) // Calculate signed area (double area to be exact)
//--------------------- //---------------------
@ -1209,42 +1270,42 @@ template<class VC>
void path_base<VC>::invert_polygon(unsigned start) void path_base<VC>::invert_polygon(unsigned start)
{ {
// Skip all non-vertices at the beginning // Skip all non-vertices at the beginning
while (start < m_vertices.total_vertices() && !is_vertex(m_vertices.command(start))) while(start < m_vertices.total_vertices() &&
++start; !is_vertex(m_vertices.command(start))) ++start;
// Skip all insignificant move_to // Skip all insignificant move_to
while (start + 1 < m_vertices.total_vertices() && is_move_to(m_vertices.command(start)) && while(start+1 < m_vertices.total_vertices() &&
is_move_to(m_vertices.command(start + 1))) is_move_to(m_vertices.command(start)) &&
++start; is_move_to(m_vertices.command(start+1))) ++start;
// Find the last vertex // Find the last vertex
unsigned end = start + 1; unsigned end = start + 1;
while (end < m_vertices.total_vertices() && !is_next_poly(m_vertices.command(end))) while(end < m_vertices.total_vertices() &&
++end; !is_next_poly(m_vertices.command(end))) ++end;
invert_polygon(start, end); invert_polygon(start, end);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
unsigned path_base<VC>::arrange_polygon_orientation(unsigned start, path_flags_e orientation) unsigned path_base<VC>::arrange_polygon_orientation(unsigned start,
path_flags_e orientation)
{ {
if (orientation == path_flags_none) if(orientation == path_flags_none) return start;
return start;
// Skip all non-vertices at the beginning // Skip all non-vertices at the beginning
while (start < m_vertices.total_vertices() && !is_vertex(m_vertices.command(start))) while(start < m_vertices.total_vertices() &&
++start; !is_vertex(m_vertices.command(start))) ++start;
// Skip all insignificant move_to // Skip all insignificant move_to
while (start + 1 < m_vertices.total_vertices() && is_move_to(m_vertices.command(start)) && while(start+1 < m_vertices.total_vertices() &&
is_move_to(m_vertices.command(start + 1))) is_move_to(m_vertices.command(start)) &&
++start; is_move_to(m_vertices.command(start+1))) ++start;
// Find the last vertex // Find the last vertex
unsigned end = start + 1; unsigned end = start + 1;
while (end < m_vertices.total_vertices() && !is_next_poly(m_vertices.command(end))) while(end < m_vertices.total_vertices() &&
++end; !is_next_poly(m_vertices.command(end))) ++end;
if(end - start > 2) if(end - start > 2)
{ {
@ -1253,7 +1314,8 @@ unsigned path_base<VC>::arrange_polygon_orientation(unsigned start, path_flags_e
// Invert polygon, set orientation flag, and skip all end_poly // Invert polygon, set orientation flag, and skip all end_poly
invert_polygon(start, end); invert_polygon(start, end);
unsigned cmd; unsigned cmd;
while (end < m_vertices.total_vertices() && is_end_poly(cmd = m_vertices.command(end))) while(end < m_vertices.total_vertices() &&
is_end_poly(cmd = m_vertices.command(end)))
{ {
m_vertices.modify_command(end++, set_orientation(cmd, orientation)); m_vertices.modify_command(end++, set_orientation(cmd, orientation));
} }
@ -1264,7 +1326,8 @@ unsigned path_base<VC>::arrange_polygon_orientation(unsigned start, path_flags_e
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VC> template<class VC>
unsigned path_base<VC>::arrange_orientations(unsigned start, path_flags_e orientation) unsigned path_base<VC>::arrange_orientations(unsigned start,
path_flags_e orientation)
{ {
if(orientation != path_flags_none) if(orientation != path_flags_none)
{ {
@ -1336,8 +1399,7 @@ void path_base<VC>::translate(double dx, double dy, unsigned path_id)
{ {
double x, y; double x, y;
unsigned cmd = m_vertices.vertex(path_id, &x, &y); unsigned cmd = m_vertices.vertex(path_id, &x, &y);
if (is_stop(cmd)) if(is_stop(cmd)) break;
break;
if(is_vertex(cmd)) if(is_vertex(cmd))
{ {
x += dx; x += dx;
@ -1367,9 +1429,10 @@ void path_base<VC>::translate_all_paths(double dx, double dy)
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------vertex_stl_storage //-----------------------------------------------------vertex_stl_storage
template<class Container> template<class Container> class vertex_stl_storage
class vertex_stl_storage
{ {
public: public:
typedef typename Container::value_type vertex_type; typedef typename Container::value_type vertex_type;
@ -1380,7 +1443,9 @@ class vertex_stl_storage
void add_vertex(double x, double y, unsigned cmd) void add_vertex(double x, double y, unsigned cmd)
{ {
m_vertices.push_back(vertex_type(value_type(x), value_type(y), int8u(cmd))); m_vertices.push_back(vertex_type(value_type(x),
value_type(y),
int8u(cmd)));
} }
void modify_vertex(unsigned idx, double x, double y) void modify_vertex(unsigned idx, double x, double y)
@ -1398,7 +1463,10 @@ class vertex_stl_storage
v.cmd = int8u(cmd); v.cmd = int8u(cmd);
} }
void modify_command(unsigned idx, unsigned cmd) { m_vertices[idx].cmd = int8u(cmd); } void modify_command(unsigned idx, unsigned cmd)
{
m_vertices[idx].cmd = int8u(cmd);
}
void swap_vertices(unsigned v1, unsigned v2) void swap_vertices(unsigned v1, unsigned v2)
{ {
@ -1407,7 +1475,12 @@ class vertex_stl_storage
m_vertices[v2] = t; m_vertices[v2] = t;
} }
unsigned last_command() const { return m_vertices.size() ? m_vertices[m_vertices.size() - 1].cmd : path_cmd_stop; } unsigned last_command() const
{
return m_vertices.size() ?
m_vertices[m_vertices.size() - 1].cmd :
path_cmd_stop;
}
unsigned last_vertex(double* x, double* y) const unsigned last_vertex(double* x, double* y) const
{ {
@ -1429,11 +1502,20 @@ class vertex_stl_storage
return vertex(m_vertices.size() - 2, x, y); return vertex(m_vertices.size() - 2, x, y);
} }
double last_x() const { return m_vertices.size() ? m_vertices[m_vertices.size() - 1].x : 0.0; } double last_x() const
{
return m_vertices.size() ? m_vertices[m_vertices.size() - 1].x : 0.0;
}
double last_y() const { return m_vertices.size() ? m_vertices[m_vertices.size() - 1].y : 0.0; } double last_y() const
{
return m_vertices.size() ? m_vertices[m_vertices.size() - 1].y : 0.0;
}
unsigned total_vertices() const { return m_vertices.size(); } unsigned total_vertices() const
{
return m_vertices.size();
}
unsigned vertex(unsigned idx, double* x, double* y) const unsigned vertex(unsigned idx, double* x, double* y) const
{ {
@ -1443,7 +1525,10 @@ class vertex_stl_storage
return v.cmd; return v.cmd;
} }
unsigned command(unsigned idx) const { return m_vertices[idx].cmd; } unsigned command(unsigned idx) const
{
return m_vertices[idx].cmd;
}
private: private:
Container m_vertices; Container m_vertices;
@ -1456,7 +1541,9 @@ typedef path_base<vertex_block_storage<double>> path_storage;
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
//typedef path_base<vertex_stl_storage<pod_bvector<vertex_d> > > path_storage; //typedef path_base<vertex_stl_storage<pod_bvector<vertex_d> > > path_storage;
} // namespace agg }
// Example of declarations path_storage with std::vector as a container // Example of declarations path_storage with std::vector as a container
//--------------------------------------------------------------------------- //---------------------------------------------------------------------------
@ -1467,4 +1554,5 @@ typedef path_base<vertex_block_storage<double>> path_storage;
// typedef path_base<vertex_stl_storage<std::vector<vertex_d> > > path_storage; // typedef path_base<vertex_stl_storage<std::vector<vertex_d> > > path_storage;
//} //}
#endif #endif

View file

@ -19,74 +19,86 @@
#include <cstring> #include <cstring>
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
//---------------------------------------------------------vertex_integer
template<class T, unsigned CoordShift = 6>
struct vertex_integer
{ {
enum path_cmd { cmd_move_to = 0, cmd_line_to = 1, cmd_curve3 = 2, cmd_curve4 = 3 }; //---------------------------------------------------------vertex_integer
template<class T, unsigned CoordShift=6> struct vertex_integer
{
enum path_cmd
{
cmd_move_to = 0,
cmd_line_to = 1,
cmd_curve3 = 2,
cmd_curve4 = 3
};
enum coord_scale_e { coord_shift = CoordShift, coord_scale = 1 << coord_shift }; enum coord_scale_e
{
coord_shift = CoordShift,
coord_scale = 1 << coord_shift
};
T x,y; T x,y;
vertex_integer() {} vertex_integer() {}
vertex_integer(T x_, T y_, unsigned flag) vertex_integer(T x_, T y_, unsigned flag) :
: x(((x_ << 1) & ~1) | (flag & 1)) x(((x_ << 1) & ~1) | (flag & 1)),
, y(((y_ << 1) & ~1) | (flag >> 1)) y(((y_ << 1) & ~1) | (flag >> 1)) {}
{}
unsigned vertex(double* x_, double* y_, double dx = 0, double dy = 0, double scale = 1.0) const unsigned vertex(double* x_, double* y_,
double dx=0, double dy=0,
double scale=1.0) const
{ {
*x_ = dx + (double(x >> 1) / coord_scale) * scale; *x_ = dx + (double(x >> 1) / coord_scale) * scale;
*y_ = dy + (double(y >> 1) / coord_scale) * scale; *y_ = dy + (double(y >> 1) / coord_scale) * scale;
switch(((y & 1) << 1) | (x & 1)) switch(((y & 1) << 1) | (x & 1))
{ {
case cmd_move_to: case cmd_move_to: return path_cmd_move_to;
return path_cmd_move_to; case cmd_line_to: return path_cmd_line_to;
case cmd_line_to: case cmd_curve3: return path_cmd_curve3;
return path_cmd_line_to; case cmd_curve4: return path_cmd_curve4;
case cmd_curve3:
return path_cmd_curve3;
case cmd_curve4:
return path_cmd_curve4;
} }
return path_cmd_stop; return path_cmd_stop;
} }
}; };
//---------------------------------------------------path_storage_integer //---------------------------------------------------path_storage_integer
template<class T, unsigned CoordShift = 6> template<class T, unsigned CoordShift=6> class path_storage_integer
class path_storage_integer
{ {
public: public:
typedef T value_type; typedef T value_type;
typedef vertex_integer<T, CoordShift> vertex_integer_type; typedef vertex_integer<T, CoordShift> vertex_integer_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
path_storage_integer() path_storage_integer() : m_storage(), m_vertex_idx(0), m_closed(true) {}
: m_storage()
, m_vertex_idx(0)
, m_closed(true)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void remove_all() { m_storage.remove_all(); } void remove_all() { m_storage.remove_all(); }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void move_to(T x, T y) { m_storage.add(vertex_integer_type(x, y, vertex_integer_type::cmd_move_to)); } void move_to(T x, T y)
{
m_storage.add(vertex_integer_type(x, y, vertex_integer_type::cmd_move_to));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void line_to(T x, T y) { m_storage.add(vertex_integer_type(x, y, vertex_integer_type::cmd_line_to)); } void line_to(T x, T y)
{
m_storage.add(vertex_integer_type(x, y, vertex_integer_type::cmd_line_to));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void curve3(T x_ctrl, T y_ctrl, T x_to, T y_to) void curve3(T x_ctrl, T y_ctrl,
T x_to, T y_to)
{ {
m_storage.add(vertex_integer_type(x_ctrl, y_ctrl, vertex_integer_type::cmd_curve3)); m_storage.add(vertex_integer_type(x_ctrl, y_ctrl, vertex_integer_type::cmd_curve3));
m_storage.add(vertex_integer_type(x_to, y_to, vertex_integer_type::cmd_curve3)); m_storage.add(vertex_integer_type(x_to, y_to, vertex_integer_type::cmd_curve3));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void curve4(T x_ctrl1, T y_ctrl1, T x_ctrl2, T y_ctrl2, T x_to, T y_to) void curve4(T x_ctrl1, T y_ctrl1,
T x_ctrl2, T y_ctrl2,
T x_to, T y_to)
{ {
m_storage.add(vertex_integer_type(x_ctrl1, y_ctrl1, vertex_integer_type::cmd_curve4)); m_storage.add(vertex_integer_type(x_ctrl1, y_ctrl1, vertex_integer_type::cmd_curve4));
m_storage.add(vertex_integer_type(x_ctrl2, y_ctrl2, vertex_integer_type::cmd_curve4)); m_storage.add(vertex_integer_type(x_ctrl2, y_ctrl2, vertex_integer_type::cmd_curve4));
@ -98,7 +110,10 @@ class path_storage_integer
//-------------------------------------------------------------------- //--------------------------------------------------------------------
unsigned size() const { return m_storage.size(); } unsigned size() const { return m_storage.size(); }
unsigned vertex(unsigned idx, double* x, double* y) const { return m_storage[idx].vertex(x, y); } unsigned vertex(unsigned idx, double* x, double* y) const
{
return m_storage[idx].vertex(x, y);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
unsigned byte_size() const { return m_storage.size() * sizeof(vertex_integer_type); } unsigned byte_size() const { return m_storage.size() * sizeof(vertex_integer_type); }
@ -163,14 +178,10 @@ class path_storage_integer
{ {
double x, y; double x, y;
m_storage[i].vertex(&x, &y); m_storage[i].vertex(&x, &y);
if (x < bounds.x1) if(x < bounds.x1) bounds.x1 = x;
bounds.x1 = x; if(y < bounds.y1) bounds.y1 = y;
if (y < bounds.y1) if(x > bounds.x2) bounds.x2 = x;
bounds.y1 = y; if(y > bounds.y2) bounds.y2 = y;
if (x > bounds.x2)
bounds.x2 = x;
if (y > bounds.y2)
bounds.y2 = y;
} }
} }
return bounds; return bounds;
@ -182,36 +193,40 @@ class path_storage_integer
bool m_closed; bool m_closed;
}; };
//-----------------------------------------serialized_integer_path_adaptor //-----------------------------------------serialized_integer_path_adaptor
template<class T, unsigned CoordShift = 6> template<class T, unsigned CoordShift=6> class serialized_integer_path_adaptor
class serialized_integer_path_adaptor
{ {
public: public:
typedef vertex_integer<T, CoordShift> vertex_integer_type; typedef vertex_integer<T, CoordShift> vertex_integer_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
serialized_integer_path_adaptor() serialized_integer_path_adaptor() :
: m_data(0) m_data(0),
, m_end(0) m_end(0),
, m_ptr(0) m_ptr(0),
, m_dx(0.0) m_dx(0.0),
, m_dy(0.0) m_dy(0.0),
, m_scale(1.0) m_scale(1.0),
, m_vertices(0) m_vertices(0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
serialized_integer_path_adaptor(const int8u* data, unsigned size, double dx, double dy) serialized_integer_path_adaptor(const int8u* data, unsigned size,
: m_data(data) double dx, double dy) :
, m_end(data + size) m_data(data),
, m_ptr(data) m_end(data + size),
, m_dx(dx) m_ptr(data),
, m_dy(dy) m_dx(dx),
, m_vertices(0) m_dy(dy),
m_vertices(0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void init(const int8u* data, unsigned size, double dx, double dy, double scale = 1.0) void init(const int8u* data, unsigned size,
double dx, double dy, double scale=1.0)
{ {
m_data = data; m_data = data;
m_end = data + size; m_end = data + size;
@ -222,6 +237,7 @@ class serialized_integer_path_adaptor
m_vertices = 0; m_vertices = 0;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void rewind(unsigned) void rewind(unsigned)
{ {
@ -272,6 +288,8 @@ class serialized_integer_path_adaptor
unsigned m_vertices; unsigned m_vertices;
}; };
} // namespace agg }
#endif #endif

View file

@ -19,39 +19,52 @@
#include "agg_line_aa_basics.h" #include "agg_line_aa_basics.h"
#include "agg_color_rgba.h" #include "agg_color_rgba.h"
namespace agg {
namespace agg
{
//=======================================================pattern_filter_nn //=======================================================pattern_filter_nn
template<class ColorT> template<class ColorT> struct pattern_filter_nn
struct pattern_filter_nn
{ {
typedef ColorT color_type; typedef ColorT color_type;
static unsigned dilation() { return 0; } static unsigned dilation() { return 0; }
static void AGG_INLINE pixel_low_res(color_type const* const* buf, color_type* p, int x, int y) { *p = buf[y][x]; } static void AGG_INLINE pixel_low_res(color_type const* const* buf,
color_type* p, int x, int y)
static void AGG_INLINE pixel_high_res(color_type const* const* buf, color_type* p, int x, int y)
{ {
*p = buf[y >> line_subpixel_shift][x >> line_subpixel_shift]; *p = buf[y][x];
}
static void AGG_INLINE pixel_high_res(color_type const* const* buf,
color_type* p, int x, int y)
{
*p = buf[y >> line_subpixel_shift]
[x >> line_subpixel_shift];
} }
}; };
typedef pattern_filter_nn<rgba8> pattern_filter_nn_rgba8; typedef pattern_filter_nn<rgba8> pattern_filter_nn_rgba8;
typedef pattern_filter_nn<rgba16> pattern_filter_nn_rgba16; typedef pattern_filter_nn<rgba16> pattern_filter_nn_rgba16;
//===========================================pattern_filter_bilinear_rgba //===========================================pattern_filter_bilinear_rgba
template<class ColorT> template<class ColorT> struct pattern_filter_bilinear_rgba
struct pattern_filter_bilinear_rgba
{ {
typedef ColorT color_type; typedef ColorT color_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
static unsigned dilation() { return 1; } static unsigned dilation() { return 1; }
static AGG_INLINE void pixel_low_res(color_type const* const* buf, color_type* p, int x, int y) { *p = buf[y][x]; } static AGG_INLINE void pixel_low_res(color_type const* const* buf,
color_type* p, int x, int y)
{
*p = buf[y][x];
}
static AGG_INLINE void pixel_high_res(color_type const* const* buf, color_type* p, int x, int y) static AGG_INLINE void pixel_high_res(color_type const* const* buf,
color_type* p, int x, int y)
{ {
calc_type r, g, b, a; calc_type r, g, b, a;
r = g = b = a = line_subpixel_scale * line_subpixel_scale / 2; r = g = b = a = line_subpixel_scale * line_subpixel_scale / 2;
@ -64,7 +77,8 @@ struct pattern_filter_bilinear_rgba
y &= line_subpixel_mask; y &= line_subpixel_mask;
const color_type* ptr = buf[y_lr] + x_lr; const color_type* ptr = buf[y_lr] + x_lr;
weight = (line_subpixel_scale - x) * (line_subpixel_scale - y); weight = (line_subpixel_scale - x) *
(line_subpixel_scale - y);
r += weight * ptr->r; r += weight * ptr->r;
g += weight * ptr->g; g += weight * ptr->g;
b += weight * ptr->b; b += weight * ptr->b;
@ -103,6 +117,6 @@ struct pattern_filter_bilinear_rgba
typedef pattern_filter_bilinear_rgba<rgba8> pattern_filter_bilinear_rgba8; typedef pattern_filter_bilinear_rgba<rgba8> pattern_filter_bilinear_rgba8;
typedef pattern_filter_bilinear_rgba<rgba16> pattern_filter_bilinear_rgba16; typedef pattern_filter_bilinear_rgba<rgba16> pattern_filter_bilinear_rgba16;
} // namespace agg }
#endif #endif

View file

@ -16,14 +16,16 @@
#ifndef AGG_PIXFMT_AMASK_ADAPTOR_INCLUDED #ifndef AGG_PIXFMT_AMASK_ADAPTOR_INCLUDED
#define AGG_PIXFMT_AMASK_ADAPTOR_INCLUDED #define AGG_PIXFMT_AMASK_ADAPTOR_INCLUDED
#include <cstring> #include <cstring>
#include "agg_array.h" #include "agg_array.h"
#include "agg_rendering_buffer.h" #include "agg_rendering_buffer.h"
namespace agg {
namespace agg
{
//==================================================pixfmt_amask_adaptor //==================================================pixfmt_amask_adaptor
template<class PixFmt, class AlphaMask> template<class PixFmt, class AlphaMask> class pixfmt_amask_adaptor
class pixfmt_amask_adaptor
{ {
public: public:
typedef PixFmt pixfmt_type; typedef PixFmt pixfmt_type;
@ -55,11 +57,10 @@ class pixfmt_amask_adaptor
memcpy(&m_span[0], covers, len * sizeof(cover_type)); memcpy(&m_span[0], covers, len * sizeof(cover_type));
} }
public: public:
pixfmt_amask_adaptor(pixfmt_type& pixf, const amask_type& mask) pixfmt_amask_adaptor(pixfmt_type& pixf, const amask_type& mask) :
: m_pixf(&pixf) m_pixf(&pixf), m_mask(&mask), m_span()
, m_mask(&mask)
, m_span()
{} {}
void attach_pixfmt(pixfmt_type& pixf) { m_pixf = &pixf; } void attach_pixfmt(pixfmt_type& pixf) { m_pixf = &pixf; }
@ -77,10 +78,16 @@ class pixfmt_amask_adaptor
unsigned height() const { return m_pixf->height(); } unsigned height() const { return m_pixf->height(); }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
color_type pixel(int x, int y) { return m_pixf->pixel(x, y); } color_type pixel(int x, int y)
{
return m_pixf->pixel(x, y);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_pixel(int x, int y, const color_type& c) { m_pixf->blend_pixel(x, y, c, m_mask->pixel(x, y)); } void copy_pixel(int x, int y, const color_type& c)
{
m_pixf->blend_pixel(x, y, c, m_mask->pixel(x, y));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_pixel(int x, int y, const color_type& c, cover_type cover) void blend_pixel(int x, int y, const color_type& c, cover_type cover)
@ -89,7 +96,9 @@ class pixfmt_amask_adaptor
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_hline(int x, int y, unsigned len, const color_type& c) void copy_hline(int x, int y,
unsigned len,
const color_type& c)
{ {
realloc_span(len); realloc_span(len);
m_mask->fill_hspan(x, y, &m_span[0], len); m_mask->fill_hspan(x, y, &m_span[0], len);
@ -97,7 +106,10 @@ class pixfmt_amask_adaptor
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_hline(int x, int y, unsigned len, const color_type& c, cover_type cover) void blend_hline(int x, int y,
unsigned len,
const color_type& c,
cover_type cover)
{ {
init_span(len); init_span(len);
m_mask->combine_hspan(x, y, &m_span[0], len); m_mask->combine_hspan(x, y, &m_span[0], len);
@ -105,7 +117,9 @@ class pixfmt_amask_adaptor
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_vline(int x, int y, unsigned len, const color_type& c) void copy_vline(int x, int y,
unsigned len,
const color_type& c)
{ {
realloc_span(len); realloc_span(len);
m_mask->fill_vspan(x, y, &m_span[0], len); m_mask->fill_vspan(x, y, &m_span[0], len);
@ -113,7 +127,10 @@ class pixfmt_amask_adaptor
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_vline(int x, int y, unsigned len, const color_type& c, cover_type cover) void blend_vline(int x, int y,
unsigned len,
const color_type& c,
cover_type cover)
{ {
init_span(len); init_span(len);
m_mask->combine_vspan(x, y, &m_span[0], len); m_mask->combine_vspan(x, y, &m_span[0], len);
@ -121,27 +138,39 @@ class pixfmt_amask_adaptor
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_from(const rendering_buffer& from, int xdst, int ydst, int xsrc, int ysrc, unsigned len) void copy_from(const rendering_buffer& from,
int xdst, int ydst,
int xsrc, int ysrc,
unsigned len)
{ {
m_pixf->copy_from(from, xdst, ydst, xsrc, ysrc, len); m_pixf->copy_from(from, xdst, ydst, xsrc, ysrc, len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_hspan(int x, int y, unsigned len, const color_type& c, const cover_type* covers) void blend_solid_hspan(int x, int y,
unsigned len,
const color_type& c,
const cover_type* covers)
{ {
init_span(len, covers); init_span(len, covers);
m_mask->combine_hspan(x, y, &m_span[0], len); m_mask->combine_hspan(x, y, &m_span[0], len);
m_pixf->blend_solid_hspan(x, y, len, c, &m_span[0]); m_pixf->blend_solid_hspan(x, y, len, c, &m_span[0]);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_vspan(int x, int y, unsigned len, const color_type& c, const cover_type* covers) void blend_solid_vspan(int x, int y,
unsigned len,
const color_type& c,
const cover_type* covers)
{ {
init_span(len, covers); init_span(len, covers);
m_mask->combine_vspan(x, y, &m_span[0], len); m_mask->combine_vspan(x, y, &m_span[0], len);
m_pixf->blend_solid_vspan(x, y, len, c, &m_span[0]); m_pixf->blend_solid_vspan(x, y, len, c, &m_span[0]);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_hspan(int x, int y, unsigned len, const color_type* colors) void copy_color_hspan(int x, int y, unsigned len, const color_type* colors)
{ {
@ -159,8 +188,7 @@ class pixfmt_amask_adaptor
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_hspan(int x, void blend_color_hspan(int x, int y,
int y,
unsigned len, unsigned len,
const color_type* colors, const color_type* colors,
const cover_type* covers, const cover_type* covers,
@ -179,9 +207,9 @@ class pixfmt_amask_adaptor
m_pixf->blend_color_hspan(x, y, len, colors, &m_span[0], cover); m_pixf->blend_color_hspan(x, y, len, colors, &m_span[0], cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_vspan(int x, void blend_color_vspan(int x, int y,
int y,
unsigned len, unsigned len,
const color_type* colors, const color_type* colors,
const cover_type* covers, const cover_type* covers,
@ -206,6 +234,7 @@ class pixfmt_amask_adaptor
pod_array<cover_type> m_span; pod_array<cover_type> m_span;
}; };
} // namespace agg }
#endif #endif

View file

@ -20,15 +20,19 @@
#include "agg_color_gray.h" #include "agg_color_gray.h"
#include "agg_color_rgba.h" #include "agg_color_rgba.h"
namespace agg { namespace agg
{
struct pixfmt_gray_tag struct pixfmt_gray_tag
{}; {
};
struct pixfmt_rgb_tag struct pixfmt_rgb_tag
{}; {
};
struct pixfmt_rgba_tag struct pixfmt_rgba_tag
{}; {
};
//--------------------------------------------------------------blender_base //--------------------------------------------------------------blender_base
template<class ColorT, class Order = void> template<class ColorT, class Order = void>
@ -42,7 +46,8 @@ struct blender_base
{ {
if (cover > cover_none) if (cover > cover_none)
{ {
rgba c(color_type::to_double(r), rgba c(
color_type::to_double(r),
color_type::to_double(g), color_type::to_double(g),
color_type::to_double(b), color_type::to_double(b),
color_type::to_double(a)); color_type::to_double(a));
@ -58,13 +63,17 @@ struct blender_base
return c; return c;
} }
else else return rgba::no_color();
return rgba::no_color();
} }
static rgba get(const value_type* p, cover_type cover = cover_full) static rgba get(const value_type* p, cover_type cover = cover_full)
{ {
return get(p[order_type::R], p[order_type::G], p[order_type::B], p[order_type::A], cover); return get(
p[order_type::R],
p[order_type::G],
p[order_type::B],
p[order_type::A],
cover);
} }
static void set(value_type* p, value_type r, value_type g, value_type b, value_type a) static void set(value_type* p, value_type r, value_type g, value_type b, value_type a)
@ -83,6 +92,6 @@ struct blender_base
p[order_type::A] = color_type::from_double(c.a); p[order_type::A] = color_type::from_double(c.a);
} }
}; };
} // namespace agg }
#endif #endif

View file

@ -28,11 +28,11 @@
#include "agg_pixfmt_base.h" #include "agg_pixfmt_base.h"
#include "agg_rendering_buffer.h" #include "agg_rendering_buffer.h"
namespace agg { namespace agg
{
//============================================================blender_gray //============================================================blender_gray
template<class ColorT> template<class ColorT> struct blender_gray
struct blender_gray
{ {
typedef ColorT color_type; typedef ColorT color_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
@ -43,20 +43,22 @@ struct blender_gray
// compositing function. Since the render buffer is opaque we skip the // compositing function. Since the render buffer is opaque we skip the
// initial premultiply and final demultiply. // initial premultiply and final demultiply.
static AGG_INLINE void blend_pix(value_type* p, value_type cv, value_type alpha, cover_type cover) static AGG_INLINE void blend_pix(value_type* p,
value_type cv, value_type alpha, cover_type cover)
{ {
blend_pix(p, cv, color_type::mult_cover(alpha, cover)); blend_pix(p, cv, color_type::mult_cover(alpha, cover));
} }
static AGG_INLINE void blend_pix(value_type* p, value_type cv, value_type alpha) static AGG_INLINE void blend_pix(value_type* p,
value_type cv, value_type alpha)
{ {
*p = color_type::lerp(*p, cv, alpha); *p = color_type::lerp(*p, cv, alpha);
} }
}; };
//======================================================blender_gray_pre //======================================================blender_gray_pre
template<class ColorT> template<class ColorT> struct blender_gray_pre
struct blender_gray_pre
{ {
typedef ColorT color_type; typedef ColorT color_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
@ -66,51 +68,59 @@ struct blender_gray_pre
// Blend pixels using the premultiplied form of Alvy-Ray Smith's // Blend pixels using the premultiplied form of Alvy-Ray Smith's
// compositing function. // compositing function.
static AGG_INLINE void blend_pix(value_type* p, value_type cv, value_type alpha, cover_type cover) static AGG_INLINE void blend_pix(value_type* p,
value_type cv, value_type alpha, cover_type cover)
{ {
blend_pix(p, color_type::mult_cover(cv, cover), color_type::mult_cover(alpha, cover)); blend_pix(p, color_type::mult_cover(cv, cover), color_type::mult_cover(alpha, cover));
} }
static AGG_INLINE void blend_pix(value_type* p, value_type cv, value_type alpha) static AGG_INLINE void blend_pix(value_type* p,
value_type cv, value_type alpha)
{ {
*p = color_type::prelerp(*p, cv, alpha); *p = color_type::prelerp(*p, cv, alpha);
} }
}; };
//=====================================================apply_gamma_dir_gray //=====================================================apply_gamma_dir_gray
template<class ColorT, class GammaLut> template<class ColorT, class GammaLut> class apply_gamma_dir_gray
class apply_gamma_dir_gray
{ {
public: public:
typedef typename ColorT::value_type value_type; typedef typename ColorT::value_type value_type;
apply_gamma_dir_gray(const GammaLut& gamma) apply_gamma_dir_gray(const GammaLut& gamma) : m_gamma(gamma) {}
: m_gamma(gamma)
{}
AGG_INLINE void operator()(value_type* p) { *p = m_gamma.dir(*p); } AGG_INLINE void operator () (value_type* p)
{
*p = m_gamma.dir(*p);
}
private: private:
const GammaLut& m_gamma; const GammaLut& m_gamma;
}; };
//=====================================================apply_gamma_inv_gray //=====================================================apply_gamma_inv_gray
template<class ColorT, class GammaLut> template<class ColorT, class GammaLut> class apply_gamma_inv_gray
class apply_gamma_inv_gray
{ {
public: public:
typedef typename ColorT::value_type value_type; typedef typename ColorT::value_type value_type;
apply_gamma_inv_gray(const GammaLut& gamma) apply_gamma_inv_gray(const GammaLut& gamma) : m_gamma(gamma) {}
: m_gamma(gamma)
{}
AGG_INLINE void operator()(value_type* p) { *p = m_gamma.inv(*p); } AGG_INLINE void operator () (value_type* p)
{
*p = m_gamma.inv(*p);
}
private: private:
const GammaLut& m_gamma; const GammaLut& m_gamma;
}; };
//=================================================pixfmt_alpha_blend_gray //=================================================pixfmt_alpha_blend_gray
template<class Blender, class RenBuf, unsigned Step = 1, unsigned Offset = 0> template<class Blender, class RenBuf, unsigned Step = 1, unsigned Offset = 0>
class pixfmt_alpha_blend_gray class pixfmt_alpha_blend_gray
@ -124,7 +134,8 @@ class pixfmt_alpha_blend_gray
typedef int order_type; // A fake one typedef int order_type; // A fake one
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum { enum
{
num_components = 1, num_components = 1,
pix_width = sizeof(value_type) * Step, pix_width = sizeof(value_type) * Step,
pix_step = Step, pix_step = Step,
@ -134,32 +145,61 @@ class pixfmt_alpha_blend_gray
{ {
value_type c[num_components]; value_type c[num_components];
void set(value_type v) { c[0] = v; } void set(value_type v)
{
c[0] = v;
}
void set(const color_type& color) { set(color.v); } void set(const color_type& color)
{
set(color.v);
}
void get(value_type& v) const { v = c[0]; } void get(value_type& v) const
{
v = c[0];
}
color_type get() const { return color_type(c[0]); } color_type get() const
{
return color_type(c[0]);
}
pixel_type* next() { return (pixel_type*)(c + pix_step); } pixel_type* next()
{
return (pixel_type*)(c + pix_step);
}
const pixel_type* next() const { return (const pixel_type*)(c + pix_step); } const pixel_type* next() const
{
return (const pixel_type*)(c + pix_step);
}
pixel_type* advance(int n) { return (pixel_type*)(c + n * pix_step); } pixel_type* advance(int n)
{
return (pixel_type*)(c + n * pix_step);
}
const pixel_type* advance(int n) const { return (const pixel_type*)(c + n * pix_step); } const pixel_type* advance(int n) const
{
return (const pixel_type*)(c + n * pix_step);
}
}; };
private: private:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_pix(pixel_type* p, value_type v, value_type a, unsigned cover) AGG_INLINE void blend_pix(pixel_type* p,
value_type v, value_type a,
unsigned cover)
{ {
blender_type::blend_pix(p->c, v, a, cover); blender_type::blend_pix(p->c, v, a, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_pix(pixel_type* p, value_type v, value_type a) { blender_type::blend_pix(p->c, v, a); } AGG_INLINE void blend_pix(pixel_type* p, value_type v, value_type a)
{
blender_type::blend_pix(p->c, v, a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_pix(pixel_type* p, const color_type& c, unsigned cover) AGG_INLINE void blend_pix(pixel_type* p, const color_type& c, unsigned cover)
@ -168,7 +208,10 @@ class pixfmt_alpha_blend_gray
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_pix(pixel_type* p, const color_type& c) { blender_type::blend_pix(p->c, c.v, c.a); } AGG_INLINE void blend_pix(pixel_type* p, const color_type& c)
{
blender_type::blend_pix(p->c, c.v, c.a);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_or_blend_pix(pixel_type* p, const color_type& c, unsigned cover) AGG_INLINE void copy_or_blend_pix(pixel_type* p, const color_type& c, unsigned cover)
@ -204,8 +247,8 @@ class pixfmt_alpha_blend_gray
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
explicit pixfmt_alpha_blend_gray(rbuf_type& rb) explicit pixfmt_alpha_blend_gray(rbuf_type& rb) :
: m_rbuf(&rb) m_rbuf(&rb)
{} {}
void attach(rbuf_type& rb) { m_rbuf = &rb; } void attach(rbuf_type& rb) { m_rbuf = &rb; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -217,7 +260,10 @@ class pixfmt_alpha_blend_gray
if (r.clip(rect_i(0, 0, pixf.width()-1, pixf.height()-1))) if (r.clip(rect_i(0, 0, pixf.width()-1, pixf.height()-1)))
{ {
int stride = pixf.stride(); int stride = pixf.stride();
m_rbuf->attach(pixf.pix_ptr(r.x1, stride < 0 ? r.y2 : r.y1), (r.x2 - r.x1) + 1, (r.y2 - r.y1) + 1, stride); m_rbuf->attach(pixf.pix_ptr(r.x1, stride < 0 ? r.y2 : r.y1),
(r.x2 - r.x1) + 1,
(r.y2 - r.y1) + 1,
stride);
return true; return true;
} }
return false; return false;
@ -258,7 +304,10 @@ class pixfmt_alpha_blend_gray
} }
// Get pixel pointer from raw buffer pointer. // Get pixel pointer from raw buffer pointer.
AGG_INLINE static pixel_type* pix_value_ptr(void* p) { return (pixel_type*)((value_type*)p + pix_offset); } AGG_INLINE static pixel_type* pix_value_ptr(void* p)
{
return (pixel_type*)((value_type*)p + pix_offset);
}
// Get pixel pointer from raw buffer pointer. // Get pixel pointer from raw buffer pointer.
AGG_INLINE static const pixel_type* pix_value_ptr(const void* p) AGG_INLINE static const pixel_type* pix_value_ptr(const void* p)
@ -275,10 +324,16 @@ class pixfmt_alpha_blend_gray
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE static color_type read_plain_color(const void* p) { return pix_value_ptr(p)->get(); } AGG_INLINE static color_type read_plain_color(const void* p)
{
return pix_value_ptr(p)->get();
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE static void make_pix(int8u* p, const color_type& c) { ((pixel_type*)p)->set(c); } AGG_INLINE static void make_pix(int8u* p, const color_type& c)
{
((pixel_type*)p)->set(c);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE color_type pixel(int x, int y) const AGG_INLINE color_type pixel(int x, int y) const
@ -291,7 +346,10 @@ class pixfmt_alpha_blend_gray
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_pixel(int x, int y, const color_type& c) { pix_value_ptr(x, y, 1)->set(c); } AGG_INLINE void copy_pixel(int x, int y, const color_type& c)
{
pix_value_ptr(x, y, 1)->set(c);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_pixel(int x, int y, const color_type& c, int8u cover) AGG_INLINE void blend_pixel(int x, int y, const color_type& c, int8u cover)
@ -300,27 +358,38 @@ class pixfmt_alpha_blend_gray
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_hline(int x, int y, unsigned len, const color_type& c) AGG_INLINE void copy_hline(int x, int y,
unsigned len,
const color_type& c)
{ {
pixel_type* p = pix_value_ptr(x, y, len); pixel_type* p = pix_value_ptr(x, y, len);
do do
{ {
p->set(c); p->set(c);
p = p->next(); p = p->next();
} while (--len); }
while(--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_vline(int x, int y, unsigned len, const color_type& c) AGG_INLINE void copy_vline(int x, int y,
unsigned len,
const color_type& c)
{ {
do do
{ {
pix_value_ptr(x, y++, 1)->set(c); pix_value_ptr(x, y++, 1)->set(c);
} while (--len); }
while (--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_hline(int x, int y, unsigned len, const color_type& c, int8u cover) void blend_hline(int x, int y,
unsigned len,
const color_type& c,
int8u cover)
{ {
if (!c.is_transparent()) if (!c.is_transparent())
{ {
@ -332,7 +401,8 @@ class pixfmt_alpha_blend_gray
{ {
p->set(c); p->set(c);
p = p->next(); p = p->next();
} while (--len); }
while (--len);
} }
else else
{ {
@ -340,13 +410,18 @@ class pixfmt_alpha_blend_gray
{ {
blend_pix(p, c, cover); blend_pix(p, c, cover);
p = p->next(); p = p->next();
} while (--len); }
while (--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_vline(int x, int y, unsigned len, const color_type& c, int8u cover) void blend_vline(int x, int y,
unsigned len,
const color_type& c,
int8u cover)
{ {
if (!c.is_transparent()) if (!c.is_transparent())
{ {
@ -355,20 +430,26 @@ class pixfmt_alpha_blend_gray
do do
{ {
pix_value_ptr(x, y++, 1)->set(c); pix_value_ptr(x, y++, 1)->set(c);
} while (--len); }
while (--len);
} }
else else
{ {
do do
{ {
blend_pix(pix_value_ptr(x, y++, 1), c, cover); blend_pix(pix_value_ptr(x, y++, 1), c, cover);
} while (--len); }
while (--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_hspan(int x, int y, unsigned len, const color_type& c, const int8u* covers) void blend_solid_hspan(int x, int y,
unsigned len,
const color_type& c,
const int8u* covers)
{ {
if (!c.is_transparent()) if (!c.is_transparent())
{ {
@ -386,12 +467,17 @@ class pixfmt_alpha_blend_gray
} }
p = p->next(); p = p->next();
++covers; ++covers;
} while (--len); }
while (--len);
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_vspan(int x, int y, unsigned len, const color_type& c, const int8u* covers) void blend_solid_vspan(int x, int y,
unsigned len,
const color_type& c,
const int8u* covers)
{ {
if (!c.is_transparent()) if (!c.is_transparent())
{ {
@ -408,12 +494,16 @@ class pixfmt_alpha_blend_gray
blend_pix(p, c, *covers); blend_pix(p, c, *covers);
} }
++covers; ++covers;
} while (--len); }
while (--len);
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_hspan(int x, int y, unsigned len, const color_type* colors) void copy_color_hspan(int x, int y,
unsigned len,
const color_type* colors)
{ {
pixel_type* p = pix_value_ptr(x, y, len); pixel_type* p = pix_value_ptr(x, y, len);
@ -421,20 +511,30 @@ class pixfmt_alpha_blend_gray
{ {
p->set(*colors++); p->set(*colors++);
p = p->next(); p = p->next();
} while (--len); }
while (--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_vspan(int x, int y, unsigned len, const color_type* colors) void copy_color_vspan(int x, int y,
unsigned len,
const color_type* colors)
{ {
do do
{ {
pix_value_ptr(x, y++, 1)->set(*colors++); pix_value_ptr(x, y++, 1)->set(*colors++);
} while (--len); }
while (--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_hspan(int x, int y, unsigned len, const color_type* colors, const int8u* covers, int8u cover) void blend_color_hspan(int x, int y,
unsigned len,
const color_type* colors,
const int8u* covers,
int8u cover)
{ {
pixel_type* p = pix_value_ptr(x, y, len); pixel_type* p = pix_value_ptr(x, y, len);
@ -444,7 +544,8 @@ class pixfmt_alpha_blend_gray
{ {
copy_or_blend_pix(p, *colors++, *covers++); copy_or_blend_pix(p, *colors++, *covers++);
p = p->next(); p = p->next();
} while (--len); }
while (--len);
} }
else else
{ {
@ -454,7 +555,8 @@ class pixfmt_alpha_blend_gray
{ {
copy_or_blend_pix(p, *colors++); copy_or_blend_pix(p, *colors++);
p = p->next(); p = p->next();
} while (--len); }
while (--len);
} }
else else
{ {
@ -462,20 +564,27 @@ class pixfmt_alpha_blend_gray
{ {
copy_or_blend_pix(p, *colors++, cover); copy_or_blend_pix(p, *colors++, cover);
p = p->next(); p = p->next();
} while (--len); }
while (--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_vspan(int x, int y, unsigned len, const color_type* colors, const int8u* covers, int8u cover) void blend_color_vspan(int x, int y,
unsigned len,
const color_type* colors,
const int8u* covers,
int8u cover)
{ {
if (covers) if (covers)
{ {
do do
{ {
copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++, *covers++); copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++, *covers++);
} while (--len); }
while (--len);
} }
else else
{ {
@ -484,21 +593,22 @@ class pixfmt_alpha_blend_gray
do do
{ {
copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++); copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++);
} while (--len); }
while (--len);
} }
else else
{ {
do do
{ {
copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++, cover); copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++, cover);
} while (--len); }
while (--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Function> template<class Function> void for_each_pixel(Function f)
void for_each_pixel(Function f)
{ {
unsigned y; unsigned y;
for (y = 0; y < height(); ++y) for (y = 0; y < height(); ++y)
@ -512,32 +622,36 @@ class pixfmt_alpha_blend_gray
{ {
f(p->c); f(p->c);
p = p->next(); p = p->next();
} while (--len); }
while (--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class GammaLut> template<class GammaLut> void apply_gamma_dir(const GammaLut& g)
void apply_gamma_dir(const GammaLut& g)
{ {
for_each_pixel(apply_gamma_dir_gray<color_type, GammaLut>(g)); for_each_pixel(apply_gamma_dir_gray<color_type, GammaLut>(g));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class GammaLut> template<class GammaLut> void apply_gamma_inv(const GammaLut& g)
void apply_gamma_inv(const GammaLut& g)
{ {
for_each_pixel(apply_gamma_inv_gray<color_type, GammaLut>(g)); for_each_pixel(apply_gamma_inv_gray<color_type, GammaLut>(g));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class RenBuf2> template<class RenBuf2>
void copy_from(const RenBuf2& from, int xdst, int ydst, int xsrc, int ysrc, unsigned len) void copy_from(const RenBuf2& from,
int xdst, int ydst,
int xsrc, int ysrc,
unsigned len)
{ {
if (const int8u* p = from.row_ptr(ysrc)) if (const int8u* p = from.row_ptr(ysrc))
{ {
memmove(m_rbuf->row_ptr(xdst, ydst, len) + xdst * pix_width, p + xsrc * pix_width, len * pix_width); memmove(m_rbuf->row_ptr(xdst, ydst, len) + xdst * pix_width,
p + xsrc * pix_width,
len * pix_width);
} }
} }
@ -546,10 +660,8 @@ class pixfmt_alpha_blend_gray
template<class SrcPixelFormatRenderer> template<class SrcPixelFormatRenderer>
void blend_from_color(const SrcPixelFormatRenderer& from, void blend_from_color(const SrcPixelFormatRenderer& from,
const color_type& color, const color_type& color,
int xdst, int xdst, int ydst,
int ydst, int xsrc, int ysrc,
int xsrc,
int ysrc,
unsigned len, unsigned len,
int8u cover) int8u cover)
{ {
@ -565,7 +677,8 @@ class pixfmt_alpha_blend_gray
copy_or_blend_pix(pdst, color, src_color_type::scale_cover(cover, psrc->c[0])); copy_or_blend_pix(pdst, color, src_color_type::scale_cover(cover, psrc->c[0]));
psrc = psrc->next(); psrc = psrc->next();
pdst = pdst->next(); pdst = pdst->next();
} while (--len); }
while (--len);
} }
} }
@ -575,10 +688,8 @@ class pixfmt_alpha_blend_gray
template<class SrcPixelFormatRenderer> template<class SrcPixelFormatRenderer>
void blend_from_lut(const SrcPixelFormatRenderer& from, void blend_from_lut(const SrcPixelFormatRenderer& from,
const color_type* color_lut, const color_type* color_lut,
int xdst, int xdst, int ydst,
int ydst, int xsrc, int ysrc,
int xsrc,
int ysrc,
unsigned len, unsigned len,
int8u cover) int8u cover)
{ {
@ -593,7 +704,8 @@ class pixfmt_alpha_blend_gray
copy_or_blend_pix(pdst, color_lut[psrc->c[0]], cover); copy_or_blend_pix(pdst, color_lut[psrc->c[0]], cover);
psrc = psrc->next(); psrc = psrc->next();
pdst = pdst->next(); pdst = pdst->next();
} while (--len); }
while (--len);
} }
} }
@ -620,6 +732,6 @@ typedef pixfmt_alpha_blend_gray<blender_gray8_pre, rendering_buffer> pixfmt_gray
typedef pixfmt_alpha_blend_gray<blender_sgray8_pre, rendering_buffer> pixfmt_sgray8_pre; typedef pixfmt_alpha_blend_gray<blender_sgray8_pre, rendering_buffer> pixfmt_sgray8_pre;
typedef pixfmt_alpha_blend_gray<blender_gray16_pre, rendering_buffer> pixfmt_gray16_pre; typedef pixfmt_alpha_blend_gray<blender_gray16_pre, rendering_buffer> pixfmt_gray16_pre;
typedef pixfmt_alpha_blend_gray<blender_gray32_pre, rendering_buffer> pixfmt_gray32_pre; typedef pixfmt_alpha_blend_gray<blender_gray32_pre, rendering_buffer> pixfmt_gray32_pre;
} // namespace agg }
#endif #endif

View file

@ -29,18 +29,16 @@
#include "agg_color_rgba.h" #include "agg_color_rgba.h"
#include "agg_rendering_buffer.h" #include "agg_rendering_buffer.h"
namespace agg { namespace agg
{
//=====================================================apply_gamma_dir_rgb //=====================================================apply_gamma_dir_rgb
template<class ColorT, class Order, class GammaLut> template<class ColorT, class Order, class GammaLut> class apply_gamma_dir_rgb
class apply_gamma_dir_rgb
{ {
public: public:
typedef typename ColorT::value_type value_type; typedef typename ColorT::value_type value_type;
apply_gamma_dir_rgb(const GammaLut& gamma) apply_gamma_dir_rgb(const GammaLut& gamma) : m_gamma(gamma) {}
: m_gamma(gamma)
{}
AGG_INLINE void operator () (value_type* p) AGG_INLINE void operator () (value_type* p)
{ {
@ -53,16 +51,15 @@ class apply_gamma_dir_rgb
const GammaLut& m_gamma; const GammaLut& m_gamma;
}; };
//=====================================================apply_gamma_inv_rgb //=====================================================apply_gamma_inv_rgb
template<class ColorT, class Order, class GammaLut> template<class ColorT, class Order, class GammaLut> class apply_gamma_inv_rgb
class apply_gamma_inv_rgb
{ {
public: public:
typedef typename ColorT::value_type value_type; typedef typename ColorT::value_type value_type;
apply_gamma_inv_rgb(const GammaLut& gamma) apply_gamma_inv_rgb(const GammaLut& gamma) : m_gamma(gamma) {}
: m_gamma(gamma)
{}
AGG_INLINE void operator () (value_type* p) AGG_INLINE void operator () (value_type* p)
{ {
@ -75,9 +72,9 @@ class apply_gamma_inv_rgb
const GammaLut& m_gamma; const GammaLut& m_gamma;
}; };
//=========================================================blender_rgb //=========================================================blender_rgb
template<class ColorT, class Order> template<class ColorT, class Order> struct blender_rgb
struct blender_rgb
{ {
typedef ColorT color_type; typedef ColorT color_type;
typedef Order order_type; typedef Order order_type;
@ -86,8 +83,10 @@ struct blender_rgb
enum base_scale_e { base_shift = color_type::base_shift }; enum base_scale_e { base_shift = color_type::base_shift };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE void static AGG_INLINE void blend_pix(value_type* p,
blend_pix(value_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover = 0) unsigned cr, unsigned cg, unsigned cb,
unsigned alpha,
unsigned cover=0)
{ {
p[Order::R] += (value_type)(((cr - p[Order::R]) * alpha) >> base_shift); p[Order::R] += (value_type)(((cr - p[Order::R]) * alpha) >> base_shift);
p[Order::G] += (value_type)(((cg - p[Order::G]) * alpha) >> base_shift); p[Order::G] += (value_type)(((cg - p[Order::G]) * alpha) >> base_shift);
@ -95,9 +94,9 @@ struct blender_rgb
} }
}; };
//======================================================blender_rgb_pre //======================================================blender_rgb_pre
template<class ColorT, class Order> template<class ColorT, class Order> struct blender_rgb_pre
struct blender_rgb_pre
{ {
typedef ColorT color_type; typedef ColorT color_type;
typedef Order order_type; typedef Order order_type;
@ -106,8 +105,10 @@ struct blender_rgb_pre
enum base_scale_e { base_shift = color_type::base_shift }; enum base_scale_e { base_shift = color_type::base_shift };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE void static AGG_INLINE void blend_pix(value_type* p,
blend_pix(value_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover) unsigned cr, unsigned cg, unsigned cb,
unsigned alpha,
unsigned cover)
{ {
alpha = color_type::base_mask - alpha; alpha = color_type::base_mask - alpha;
cover = (cover + 1) << (base_shift - 8); cover = (cover + 1) << (base_shift - 8);
@ -117,18 +118,22 @@ struct blender_rgb_pre
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static AGG_INLINE void blend_pix(value_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha) static AGG_INLINE void blend_pix(value_type* p,
unsigned cr, unsigned cg, unsigned cb,
unsigned alpha)
{ {
alpha = color_type::base_mask - alpha; alpha = color_type::base_mask - alpha;
p[Order::R] = (value_type)(((p[Order::R] * alpha) >> base_shift) + cr); p[Order::R] = (value_type)(((p[Order::R] * alpha) >> base_shift) + cr);
p[Order::G] = (value_type)(((p[Order::G] * alpha) >> base_shift) + cg); p[Order::G] = (value_type)(((p[Order::G] * alpha) >> base_shift) + cg);
p[Order::B] = (value_type)(((p[Order::B] * alpha) >> base_shift) + cb); p[Order::B] = (value_type)(((p[Order::B] * alpha) >> base_shift) + cb);
} }
}; };
//===================================================blender_rgb_gamma //===================================================blender_rgb_gamma
template<class ColorT, class Order, class Gamma> template<class ColorT, class Order, class Gamma> class blender_rgb_gamma
class blender_rgb_gamma
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
@ -139,13 +144,14 @@ class blender_rgb_gamma
enum base_scale_e { base_shift = color_type::base_shift }; enum base_scale_e { base_shift = color_type::base_shift };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
blender_rgb_gamma() blender_rgb_gamma() : m_gamma(0) {}
: m_gamma(0)
{}
void gamma(const gamma_type& g) { m_gamma = &g; } void gamma(const gamma_type& g) { m_gamma = &g; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_pix(value_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover = 0) AGG_INLINE void blend_pix(value_type* p,
unsigned cr, unsigned cg, unsigned cb,
unsigned alpha,
unsigned cover=0)
{ {
calc_type r = m_gamma->dir(p[Order::R]); calc_type r = m_gamma->dir(p[Order::R]);
calc_type g = m_gamma->dir(p[Order::G]); calc_type g = m_gamma->dir(p[Order::G]);
@ -159,9 +165,11 @@ class blender_rgb_gamma
const gamma_type* m_gamma; const gamma_type* m_gamma;
}; };
//==================================================pixfmt_alpha_blend_rgb //==================================================pixfmt_alpha_blend_rgb
template<class Blender, class RenBuf> template<class Blender, class RenBuf> class pixfmt_alpha_blend_rgb
class pixfmt_alpha_blend_rgb
{ {
public: public:
typedef RenBuf rbuf_type; typedef RenBuf rbuf_type;
@ -171,7 +179,8 @@ class pixfmt_alpha_blend_rgb
typedef typename blender_type::order_type order_type; typedef typename blender_type::order_type order_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { enum base_scale_e
{
base_shift = color_type::base_shift, base_shift = color_type::base_shift,
base_scale = color_type::base_scale, base_scale = color_type::base_scale,
base_mask = color_type::base_mask, base_mask = color_type::base_mask,
@ -180,7 +189,9 @@ class pixfmt_alpha_blend_rgb
private: private:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_or_blend_pix(value_type* p, const color_type& c, unsigned cover) AGG_INLINE void copy_or_blend_pix(value_type* p,
const color_type& c,
unsigned cover)
{ {
if (c.a) if (c.a)
{ {
@ -199,7 +210,8 @@ class pixfmt_alpha_blend_rgb
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_or_blend_pix(value_type* p, const color_type& c) AGG_INLINE void copy_or_blend_pix(value_type* p,
const color_type& c)
{ {
if (c.a) if (c.a)
{ {
@ -216,10 +228,11 @@ class pixfmt_alpha_blend_rgb
} }
} }
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
explicit pixfmt_alpha_blend_rgb(rbuf_type& rb) explicit pixfmt_alpha_blend_rgb(rbuf_type& rb) :
: m_rbuf(&rb) m_rbuf(&rb)
{} {}
void attach(rbuf_type& rb) { m_rbuf = &rb; } void attach(rbuf_type& rb) { m_rbuf = &rb; }
@ -231,7 +244,10 @@ class pixfmt_alpha_blend_rgb
if(r.clip(rect_i(0, 0, pixf.width()-1, pixf.height()-1))) if(r.clip(rect_i(0, 0, pixf.width()-1, pixf.height()-1)))
{ {
int stride = pixf.stride(); int stride = pixf.stride();
m_rbuf->attach(pixf.pix_ptr(r.x1, stride < 0 ? r.y2 : r.y1), (r.x2 - r.x1) + 1, (r.y2 - r.y1) + 1, stride); m_rbuf->attach(pixf.pix_ptr(r.x1, stride < 0 ? r.y2 : r.y1),
(r.x2 - r.x1) + 1,
(r.y2 - r.y1) + 1,
stride);
return true; return true;
} }
return false; return false;
@ -251,9 +267,15 @@ class pixfmt_alpha_blend_rgb
AGG_INLINE row_data row(int y) const { return m_rbuf->row(y); } AGG_INLINE row_data row(int y) const { return m_rbuf->row(y); }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE int8u* pix_ptr(int x, int y) { return m_rbuf->row_ptr(y) + x * pix_width; } AGG_INLINE int8u* pix_ptr(int x, int y)
{
return m_rbuf->row_ptr(y) + x * pix_width;
}
AGG_INLINE const int8u* pix_ptr(int x, int y) const { return m_rbuf->row_ptr(y) + x * pix_width; } AGG_INLINE const int8u* pix_ptr(int x, int y) const
{
return m_rbuf->row_ptr(y) + x * pix_width;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE static void make_pix(int8u* p, const color_type& c) AGG_INLINE static void make_pix(int8u* p, const color_type& c)
@ -267,7 +289,9 @@ class pixfmt_alpha_blend_rgb
AGG_INLINE color_type pixel(int x, int y) const AGG_INLINE color_type pixel(int x, int y) const
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(y) + x + x + x; value_type* p = (value_type*)m_rbuf->row_ptr(y) + x + x + x;
return color_type(p[order_type::R], p[order_type::G], p[order_type::B]); return color_type(p[order_type::R],
p[order_type::G],
p[order_type::B]);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -285,8 +309,11 @@ class pixfmt_alpha_blend_rgb
copy_or_blend_pix((value_type*)m_rbuf->row_ptr(x, y, 1) + x + x + x, c, cover); copy_or_blend_pix((value_type*)m_rbuf->row_ptr(x, y, 1) + x + x + x, c, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_hline(int x, int y, unsigned len, const color_type& c) AGG_INLINE void copy_hline(int x, int y,
unsigned len,
const color_type& c)
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + x + x + x; value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + x + x + x;
do do
@ -295,27 +322,38 @@ class pixfmt_alpha_blend_rgb
p[order_type::G] = c.g; p[order_type::G] = c.g;
p[order_type::B] = c.b; p[order_type::B] = c.b;
p += 3; p += 3;
} while (--len); }
while(--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_vline(int x, int y, unsigned len, const color_type& c) AGG_INLINE void copy_vline(int x, int y,
unsigned len,
const color_type& c)
{ {
do do
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; value_type* p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
p[order_type::R] = c.r; p[order_type::R] = c.r;
p[order_type::G] = c.g; p[order_type::G] = c.g;
p[order_type::B] = c.b; p[order_type::B] = c.b;
} while (--len); }
while(--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_hline(int x, int y, unsigned len, const color_type& c, int8u cover) void blend_hline(int x, int y,
unsigned len,
const color_type& c,
int8u cover)
{ {
if (c.a) if (c.a)
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + x + x + x; value_type* p = (value_type*)
m_rbuf->row_ptr(x, y, len) + x + x + x;
calc_type alpha = (calc_type(c.a) * (calc_type(cover) + 1)) >> 8; calc_type alpha = (calc_type(c.a) * (calc_type(cover) + 1)) >> 8;
if(alpha == base_mask) if(alpha == base_mask)
@ -326,7 +364,8 @@ class pixfmt_alpha_blend_rgb
p[order_type::G] = c.g; p[order_type::G] = c.g;
p[order_type::B] = c.b; p[order_type::B] = c.b;
p += 3; p += 3;
} while (--len); }
while(--len);
} }
else else
{ {
@ -334,13 +373,18 @@ class pixfmt_alpha_blend_rgb
{ {
m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover); m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
p += 3; p += 3;
} while (--len); }
while(--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_vline(int x, int y, unsigned len, const color_type& c, int8u cover) void blend_vline(int x, int y,
unsigned len,
const color_type& c,
int8u cover)
{ {
if (c.a) if (c.a)
{ {
@ -350,31 +394,40 @@ class pixfmt_alpha_blend_rgb
{ {
do do
{ {
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
p[order_type::R] = c.r; p[order_type::R] = c.r;
p[order_type::G] = c.g; p[order_type::G] = c.g;
p[order_type::B] = c.b; p[order_type::B] = c.b;
} while (--len); }
while(--len);
} }
else else
{ {
do do
{ {
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover); m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
} while (--len); }
while(--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_hspan(int x, int y, unsigned len, const color_type& c, const int8u* covers) void blend_solid_hspan(int x, int y,
unsigned len,
const color_type& c,
const int8u* covers)
{ {
if (c.a) if (c.a)
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + x + x + x; value_type* p = (value_type*)
m_rbuf->row_ptr(x, y, len) + x + x + x;
do do
{ {
@ -391,18 +444,24 @@ class pixfmt_alpha_blend_rgb
} }
p += 3; p += 3;
++covers; ++covers;
} while (--len); }
while(--len);
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_vspan(int x, int y, unsigned len, const color_type& c, const int8u* covers) void blend_solid_vspan(int x, int y,
unsigned len,
const color_type& c,
const int8u* covers)
{ {
if (c.a) if (c.a)
{ {
do do
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; value_type* p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
calc_type alpha = (calc_type(c.a) * (calc_type(*covers) + 1)) >> 8; calc_type alpha = (calc_type(c.a) * (calc_type(*covers) + 1)) >> 8;
if(alpha == base_mask) if(alpha == base_mask)
@ -416,14 +475,19 @@ class pixfmt_alpha_blend_rgb
m_blender.blend_pix(p, c.r, c.g, c.b, alpha, *covers); m_blender.blend_pix(p, c.r, c.g, c.b, alpha, *covers);
} }
++covers; ++covers;
} while (--len); }
while(--len);
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_hspan(int x, int y, unsigned len, const color_type* colors) void copy_color_hspan(int x, int y,
unsigned len,
const color_type* colors)
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + x + x + x; value_type* p = (value_type*)
m_rbuf->row_ptr(x, y, len) + x + x + x;
do do
{ {
@ -432,26 +496,38 @@ class pixfmt_alpha_blend_rgb
p[order_type::B] = colors->b; p[order_type::B] = colors->b;
++colors; ++colors;
p += 3; p += 3;
} while (--len); }
while(--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_vspan(int x, int y, unsigned len, const color_type* colors) void copy_color_vspan(int x, int y,
unsigned len,
const color_type* colors)
{ {
do do
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; value_type* p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
p[order_type::R] = colors->r; p[order_type::R] = colors->r;
p[order_type::G] = colors->g; p[order_type::G] = colors->g;
p[order_type::B] = colors->b; p[order_type::B] = colors->b;
++colors; ++colors;
} while (--len); }
while(--len);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_hspan(int x, int y, unsigned len, const color_type* colors, const int8u* covers, int8u cover) void blend_color_hspan(int x, int y,
unsigned len,
const color_type* colors,
const int8u* covers,
int8u cover)
{ {
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + x + x + x; value_type* p = (value_type*)
m_rbuf->row_ptr(x, y, len) + x + x + x;
if(covers) if(covers)
{ {
@ -459,7 +535,8 @@ class pixfmt_alpha_blend_rgb
{ {
copy_or_blend_pix(p, *colors++, *covers++); copy_or_blend_pix(p, *colors++, *covers++);
p += 3; p += 3;
} while (--len); }
while(--len);
} }
else else
{ {
@ -469,7 +546,8 @@ class pixfmt_alpha_blend_rgb
{ {
copy_or_blend_pix(p, *colors++); copy_or_blend_pix(p, *colors++);
p += 3; p += 3;
} while (--len); }
while(--len);
} }
else else
{ {
@ -477,23 +555,32 @@ class pixfmt_alpha_blend_rgb
{ {
copy_or_blend_pix(p, *colors++, cover); copy_or_blend_pix(p, *colors++, cover);
p += 3; p += 3;
} while (--len); }
while(--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_vspan(int x, int y, unsigned len, const color_type* colors, const int8u* covers, int8u cover) void blend_color_vspan(int x, int y,
unsigned len,
const color_type* colors,
const int8u* covers,
int8u cover)
{ {
value_type* p; value_type* p;
if(covers) if(covers)
{ {
do do
{ {
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
copy_or_blend_pix(p, *colors++, *covers++); copy_or_blend_pix(p, *colors++, *covers++);
} while (--len); }
while(--len);
} }
else else
{ {
@ -501,26 +588,29 @@ class pixfmt_alpha_blend_rgb
{ {
do do
{ {
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
copy_or_blend_pix(p, *colors++); copy_or_blend_pix(p, *colors++);
} while (--len); }
while(--len);
} }
else else
{ {
do do
{ {
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + x + x + x; p = (value_type*)
m_rbuf->row_ptr(x, y++, 1) + x + x + x;
copy_or_blend_pix(p, *colors++, cover); copy_or_blend_pix(p, *colors++, cover);
} while (--len); }
while(--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Function> template<class Function> void for_each_pixel(Function f)
void for_each_pixel(Function f)
{ {
unsigned y; unsigned y;
for(y = 0; y < height(); ++y) for(y = 0; y < height(); ++y)
@ -529,45 +619,54 @@ class pixfmt_alpha_blend_rgb
if(r.ptr) if(r.ptr)
{ {
unsigned len = r.x2 - r.x1 + 1; unsigned len = r.x2 - r.x1 + 1;
value_type* p = (value_type*)m_rbuf->row_ptr(r.x1, y, len) + r.x1 * 3; value_type* p = (value_type*)
m_rbuf->row_ptr(r.x1, y, len) + r.x1 * 3;
do do
{ {
f(p); f(p);
p += 3; p += 3;
} while (--len); }
while(--len);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class GammaLut> template<class GammaLut> void apply_gamma_dir(const GammaLut& g)
void apply_gamma_dir(const GammaLut& g)
{ {
for_each_pixel(apply_gamma_dir_rgb<color_type, order_type, GammaLut>(g)); for_each_pixel(apply_gamma_dir_rgb<color_type, order_type, GammaLut>(g));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class GammaLut> template<class GammaLut> void apply_gamma_inv(const GammaLut& g)
void apply_gamma_inv(const GammaLut& g)
{ {
for_each_pixel(apply_gamma_inv_rgb<color_type, order_type, GammaLut>(g)); for_each_pixel(apply_gamma_inv_rgb<color_type, order_type, GammaLut>(g));
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class RenBuf2> template<class RenBuf2>
void copy_from(const RenBuf2& from, int xdst, int ydst, int xsrc, int ysrc, unsigned len) void copy_from(const RenBuf2& from,
int xdst, int ydst,
int xsrc, int ysrc,
unsigned len)
{ {
const int8u* p = from.row_ptr(ysrc); const int8u* p = from.row_ptr(ysrc);
if(p) if(p)
{ {
memmove(m_rbuf->row_ptr(xdst, ydst, len) + xdst * pix_width, p + xsrc * pix_width, len * pix_width); memmove(m_rbuf->row_ptr(xdst, ydst, len) + xdst * pix_width,
p + xsrc * pix_width,
len * pix_width);
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class SrcPixelFormatRenderer> template<class SrcPixelFormatRenderer>
void void blend_from(const SrcPixelFormatRenderer& from,
blend_from(const SrcPixelFormatRenderer& from, int xdst, int ydst, int xsrc, int ysrc, unsigned len, int8u cover) int xdst, int ydst,
int xsrc, int ysrc,
unsigned len,
int8u cover)
{ {
typedef typename SrcPixelFormatRenderer::order_type src_order; typedef typename SrcPixelFormatRenderer::order_type src_order;
@ -575,7 +674,8 @@ class pixfmt_alpha_blend_rgb
if(psrc) if(psrc)
{ {
psrc += xsrc * 4; psrc += xsrc * 4;
value_type* pdst = (value_type*)m_rbuf->row_ptr(xdst, ydst, len) + xdst * 3; value_type* pdst =
(value_type*)m_rbuf->row_ptr(xdst, ydst, len) + xdst * 3;
if(cover == 255) if(cover == 255)
{ {
@ -601,7 +701,8 @@ class pixfmt_alpha_blend_rgb
} }
psrc += 4; psrc += 4;
pdst += 3; pdst += 3;
} while (--len); }
while(--len);
} }
else else
{ {
@ -615,7 +716,8 @@ class pixfmt_alpha_blend_rgb
copy_or_blend_pix(pdst, color, cover); copy_or_blend_pix(pdst, color, cover);
psrc += 4; psrc += 4;
pdst += 3; pdst += 3;
} while (--len); }
while(--len);
} }
} }
} }
@ -624,10 +726,8 @@ class pixfmt_alpha_blend_rgb
template<class SrcPixelFormatRenderer> template<class SrcPixelFormatRenderer>
void blend_from_color(const SrcPixelFormatRenderer& from, void blend_from_color(const SrcPixelFormatRenderer& from,
const color_type& color, const color_type& color,
int xdst, int xdst, int ydst,
int ydst, int xsrc, int ysrc,
int xsrc,
int ysrc,
unsigned len, unsigned len,
int8u cover) int8u cover)
{ {
@ -635,13 +735,17 @@ class pixfmt_alpha_blend_rgb
const src_value_type* psrc = (src_value_type*)from.row_ptr(ysrc); const src_value_type* psrc = (src_value_type*)from.row_ptr(ysrc);
if(psrc) if(psrc)
{ {
value_type* pdst = (value_type*)m_rbuf->row_ptr(xdst, ydst, len) + xdst * 3; value_type* pdst =
(value_type*)m_rbuf->row_ptr(xdst, ydst, len) + xdst * 3;
do do
{ {
copy_or_blend_pix(pdst, color, (*psrc * cover + base_mask) >> base_shift); copy_or_blend_pix(pdst,
color,
(*psrc * cover + base_mask) >> base_shift);
++psrc; ++psrc;
pdst += 3; pdst += 3;
} while (--len); }
while(--len);
} }
} }
@ -649,10 +753,8 @@ class pixfmt_alpha_blend_rgb
template<class SrcPixelFormatRenderer> template<class SrcPixelFormatRenderer>
void blend_from_lut(const SrcPixelFormatRenderer& from, void blend_from_lut(const SrcPixelFormatRenderer& from,
const color_type* color_lut, const color_type* color_lut,
int xdst, int xdst, int ydst,
int ydst, int xsrc, int ysrc,
int xsrc,
int ysrc,
unsigned len, unsigned len,
int8u cover) int8u cover)
{ {
@ -660,17 +762,20 @@ class pixfmt_alpha_blend_rgb
const src_value_type* psrc = (src_value_type*)from.row_ptr(ysrc); const src_value_type* psrc = (src_value_type*)from.row_ptr(ysrc);
if(psrc) if(psrc)
{ {
value_type* pdst = (value_type*)m_rbuf->row_ptr(xdst, ydst, len) + xdst * 3; value_type* pdst =
(value_type*)m_rbuf->row_ptr(xdst, ydst, len) + xdst * 3;
if(cover == 255) if(cover == 255)
{ {
do do
{ {
const color_type& color = color_lut[*psrc]; const color_type& color = color_lut[*psrc];
m_blender.blend_pix(pdst, color.r, color.g, color.b, color.a); m_blender.blend_pix(pdst,
color.r, color.g, color.b, color.a);
++psrc; ++psrc;
pdst += 3; pdst += 3;
} while (--len); }
while(--len);
} }
else else
{ {
@ -679,7 +784,8 @@ class pixfmt_alpha_blend_rgb
copy_or_blend_pix(pdst, color_lut[*psrc], cover); copy_or_blend_pix(pdst, color_lut[*psrc], cover);
++psrc; ++psrc;
pdst += 3; pdst += 3;
} while (--len); }
while(--len);
} }
} }
} }
@ -694,63 +800,61 @@ typedef pixfmt_alpha_blend_rgb<blender_rgb<rgba8, order_bgr>, rendering_buffer>
typedef pixfmt_alpha_blend_rgb<blender_rgb<rgba16, order_rgb>, rendering_buffer> pixfmt_rgb48; //----pixfmt_rgb48 typedef pixfmt_alpha_blend_rgb<blender_rgb<rgba16, order_rgb>, rendering_buffer> pixfmt_rgb48; //----pixfmt_rgb48
typedef pixfmt_alpha_blend_rgb<blender_rgb<rgba16, order_bgr>, rendering_buffer> pixfmt_bgr48; //----pixfmt_bgr48 typedef pixfmt_alpha_blend_rgb<blender_rgb<rgba16, order_bgr>, rendering_buffer> pixfmt_bgr48; //----pixfmt_bgr48
typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba8, order_rgb>, rendering_buffer> typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba8, order_rgb>, rendering_buffer> pixfmt_rgb24_pre; //----pixfmt_rgb24_pre
pixfmt_rgb24_pre; //----pixfmt_rgb24_pre typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba8, order_bgr>, rendering_buffer> pixfmt_bgr24_pre; //----pixfmt_bgr24_pre
typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba8, order_bgr>, rendering_buffer> typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba16, order_rgb>, rendering_buffer> pixfmt_rgb48_pre; //----pixfmt_rgb48_pre
pixfmt_bgr24_pre; //----pixfmt_bgr24_pre typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba16, order_bgr>, rendering_buffer> pixfmt_bgr48_pre; //----pixfmt_bgr48_pre
typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba16, order_rgb>, rendering_buffer>
pixfmt_rgb48_pre; //----pixfmt_rgb48_pre
typedef pixfmt_alpha_blend_rgb<blender_rgb_pre<rgba16, order_bgr>, rendering_buffer>
pixfmt_bgr48_pre; //----pixfmt_bgr48_pre
//-----------------------------------------------------pixfmt_rgb24_gamma //-----------------------------------------------------pixfmt_rgb24_gamma
template<class Gamma> template<class Gamma> class pixfmt_rgb24_gamma :
class pixfmt_rgb24_gamma : public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_rgb, Gamma>, rendering_buffer> public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_rgb, Gamma>, rendering_buffer>
{ {
public: public:
pixfmt_rgb24_gamma(rendering_buffer& rb, const Gamma& g) pixfmt_rgb24_gamma(rendering_buffer& rb, const Gamma& g) :
: pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_rgb, Gamma>, rendering_buffer>(rb) pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_rgb, Gamma>, rendering_buffer>(rb)
{ {
this->blender().gamma(g); this->blender().gamma(g);
} }
}; };
//-----------------------------------------------------pixfmt_bgr24_gamma //-----------------------------------------------------pixfmt_bgr24_gamma
template<class Gamma> template<class Gamma> class pixfmt_bgr24_gamma :
class pixfmt_bgr24_gamma : public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_bgr, Gamma>, rendering_buffer> public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_bgr, Gamma>, rendering_buffer>
{ {
public: public:
pixfmt_bgr24_gamma(rendering_buffer& rb, const Gamma& g) pixfmt_bgr24_gamma(rendering_buffer& rb, const Gamma& g) :
: pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_bgr, Gamma>, rendering_buffer>(rb) pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba8, order_bgr, Gamma>, rendering_buffer>(rb)
{ {
this->blender().gamma(g); this->blender().gamma(g);
} }
}; };
//-----------------------------------------------------pixfmt_rgb48_gamma //-----------------------------------------------------pixfmt_rgb48_gamma
template<class Gamma> template<class Gamma> class pixfmt_rgb48_gamma :
class pixfmt_rgb48_gamma : public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_rgb, Gamma>, rendering_buffer> public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_rgb, Gamma>, rendering_buffer>
{ {
public: public:
pixfmt_rgb48_gamma(rendering_buffer& rb, const Gamma& g) pixfmt_rgb48_gamma(rendering_buffer& rb, const Gamma& g) :
: pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_rgb, Gamma>, rendering_buffer>(rb) pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_rgb, Gamma>, rendering_buffer>(rb)
{ {
this->blender().gamma(g); this->blender().gamma(g);
} }
}; };
//-----------------------------------------------------pixfmt_bgr48_gamma //-----------------------------------------------------pixfmt_bgr48_gamma
template<class Gamma> template<class Gamma> class pixfmt_bgr48_gamma :
class pixfmt_bgr48_gamma : public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_bgr, Gamma>, rendering_buffer> public pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_bgr, Gamma>, rendering_buffer>
{ {
public: public:
pixfmt_bgr48_gamma(rendering_buffer& rb, const Gamma& g) pixfmt_bgr48_gamma(rendering_buffer& rb, const Gamma& g) :
: pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_bgr, Gamma>, rendering_buffer>(rb) pixfmt_alpha_blend_rgb<blender_rgb_gamma<rgba16, order_bgr, Gamma>, rendering_buffer>(rb)
{ {
this->blender().gamma(g); this->blender().gamma(g);
} }
}; };
} // namespace agg
}
#endif #endif

File diff suppressed because it is too large Load diff

File diff suppressed because it is too large Load diff

View file

@ -18,10 +18,10 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//=======================================================pixfmt_transposer //=======================================================pixfmt_transposer
template<class PixFmt> template<class PixFmt> class pixfmt_transposer
class pixfmt_transposer
{ {
public: public:
typedef PixFmt pixfmt_type; typedef PixFmt pixfmt_type;
@ -31,12 +31,8 @@ class pixfmt_transposer
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
pixfmt_transposer() pixfmt_transposer() : m_pixf(0) {}
: m_pixf(0) explicit pixfmt_transposer(pixfmt_type& pixf) : m_pixf(&pixf) {}
{}
explicit pixfmt_transposer(pixfmt_type& pixf)
: m_pixf(&pixf)
{}
void attach(pixfmt_type& pixf) { m_pixf = &pixf; } void attach(pixfmt_type& pixf) { m_pixf = &pixf; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -44,66 +40,109 @@ class pixfmt_transposer
AGG_INLINE unsigned height() const { return m_pixf->width(); } AGG_INLINE unsigned height() const { return m_pixf->width(); }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE color_type pixel(int x, int y) const { return m_pixf->pixel(y, x); } AGG_INLINE color_type pixel(int x, int y) const
{
return m_pixf->pixel(y, x);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_pixel(int x, int y, const color_type& c) { m_pixf->copy_pixel(y, x, c); } AGG_INLINE void copy_pixel(int x, int y, const color_type& c)
{
m_pixf->copy_pixel(y, x, c);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_pixel(int x, int y, const color_type& c, int8u cover) { m_pixf->blend_pixel(y, x, c, cover); } AGG_INLINE void blend_pixel(int x, int y,
const color_type& c,
int8u cover)
{
m_pixf->blend_pixel(y, x, c, cover);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_hline(int x, int y, unsigned len, const color_type& c) { m_pixf->copy_vline(y, x, len, c); } AGG_INLINE void copy_hline(int x, int y,
unsigned len,
const color_type& c)
{
m_pixf->copy_vline(y, x, len, c);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_vline(int x, int y, unsigned len, const color_type& c) { m_pixf->copy_hline(y, x, len, c); } AGG_INLINE void copy_vline(int x, int y,
unsigned len,
const color_type& c)
{
m_pixf->copy_hline(y, x, len, c);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_hline(int x, int y, unsigned len, const color_type& c, int8u cover) AGG_INLINE void blend_hline(int x, int y,
unsigned len,
const color_type& c,
int8u cover)
{ {
m_pixf->blend_vline(y, x, len, c, cover); m_pixf->blend_vline(y, x, len, c, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_vline(int x, int y, unsigned len, const color_type& c, int8u cover) AGG_INLINE void blend_vline(int x, int y,
unsigned len,
const color_type& c,
int8u cover)
{ {
m_pixf->blend_hline(y, x, len, c, cover); m_pixf->blend_hline(y, x, len, c, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_solid_hspan(int x, int y, unsigned len, const color_type& c, const int8u* covers) AGG_INLINE void blend_solid_hspan(int x, int y,
unsigned len,
const color_type& c,
const int8u* covers)
{ {
m_pixf->blend_solid_vspan(y, x, len, c, covers); m_pixf->blend_solid_vspan(y, x, len, c, covers);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void blend_solid_vspan(int x, int y, unsigned len, const color_type& c, const int8u* covers) AGG_INLINE void blend_solid_vspan(int x, int y,
unsigned len,
const color_type& c,
const int8u* covers)
{ {
m_pixf->blend_solid_hspan(y, x, len, c, covers); m_pixf->blend_solid_hspan(y, x, len, c, covers);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_color_hspan(int x, int y, unsigned len, const color_type* colors) AGG_INLINE void copy_color_hspan(int x, int y,
unsigned len,
const color_type* colors)
{ {
m_pixf->copy_color_vspan(y, x, len, colors); m_pixf->copy_color_vspan(y, x, len, colors);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void copy_color_vspan(int x, int y, unsigned len, const color_type* colors) AGG_INLINE void copy_color_vspan(int x, int y,
unsigned len,
const color_type* colors)
{ {
m_pixf->copy_color_hspan(y, x, len, colors); m_pixf->copy_color_hspan(y, x, len, colors);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void AGG_INLINE void blend_color_hspan(int x, int y,
blend_color_hspan(int x, int y, unsigned len, const color_type* colors, const int8u* covers, int8u cover) unsigned len,
const color_type* colors,
const int8u* covers,
int8u cover)
{ {
m_pixf->blend_color_vspan(y, x, len, colors, covers, cover); m_pixf->blend_color_vspan(y, x, len, colors, covers, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE void AGG_INLINE void blend_color_vspan(int x, int y,
blend_color_vspan(int x, int y, unsigned len, const color_type* colors, const int8u* covers, int8u cover) unsigned len,
const color_type* colors,
const int8u* covers,
int8u cover)
{ {
m_pixf->blend_color_hspan(y, x, len, colors, covers, cover); m_pixf->blend_color_hspan(y, x, len, colors, covers, cover);
} }
@ -111,6 +150,8 @@ class pixfmt_transposer
private: private:
pixfmt_type* m_pixf; pixfmt_type* m_pixf;
}; };
} // namespace agg }
#endif #endif

View file

@ -35,15 +35,17 @@
#include "agg_math.h" #include "agg_math.h"
#include "agg_array.h" #include "agg_array.h"
namespace agg {
namespace agg
{
//-----------------------------------------------------rasterizer_cells_aa //-----------------------------------------------------rasterizer_cells_aa
// An internal class that implements the main rasterization algorithm. // An internal class that implements the main rasterization algorithm.
// Used in the rasterizer. Should not be used direcly. // Used in the rasterizer. Should not be used direcly.
template<class Cell> template<class Cell> class rasterizer_cells_aa
class rasterizer_cells_aa {
enum cell_block_scale_e
{ {
enum cell_block_scale_e {
cell_block_shift = 12, cell_block_shift = 12,
cell_block_size = 1 << cell_block_shift, cell_block_size = 1 << cell_block_shift,
cell_block_mask = cell_block_size - 1, cell_block_mask = cell_block_size - 1,
@ -75,9 +77,15 @@ class rasterizer_cells_aa
void sort_cells(); void sort_cells();
unsigned total_cells() const { return m_num_cells; } unsigned total_cells() const
{
return m_num_cells;
}
unsigned scanline_num_cells(unsigned y) const { return m_sorted_y[y - m_min_y].num; } unsigned scanline_num_cells(unsigned y) const
{
return m_sorted_y[y - m_min_y].num;
}
const cell_type* const* scanline_cells(unsigned y) const const cell_type* const* scanline_cells(unsigned y) const
{ {
@ -113,6 +121,9 @@ class rasterizer_cells_aa
bool m_sorted; bool m_sorted;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Cell> template<class Cell>
rasterizer_cells_aa<Cell>::~rasterizer_cells_aa() rasterizer_cells_aa<Cell>::~rasterizer_cells_aa()
@ -132,20 +143,20 @@ rasterizer_cells_aa<Cell>::~rasterizer_cells_aa()
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Cell> template<class Cell>
rasterizer_cells_aa<Cell>::rasterizer_cells_aa() rasterizer_cells_aa<Cell>::rasterizer_cells_aa() :
: m_num_blocks(0) m_num_blocks(0),
, m_max_blocks(0) m_max_blocks(0),
, m_curr_block(0) m_curr_block(0),
, m_num_cells(0) m_num_cells(0),
, m_cells(0) m_cells(0),
, m_curr_cell_ptr(0) m_curr_cell_ptr(0),
, m_sorted_cells() m_sorted_cells(),
, m_sorted_y() m_sorted_y(),
, m_min_x(0x7FFFFFFF) m_min_x(0x7FFFFFFF),
, m_min_y(0x7FFFFFFF) m_min_y(0x7FFFFFFF),
, m_max_x(-0x7FFFFFFF) m_max_x(-0x7FFFFFFF),
, m_max_y(-0x7FFFFFFF) m_max_y(-0x7FFFFFFF),
, m_sorted(false) m_sorted(false)
{ {
m_style_cell.initial(); m_style_cell.initial();
m_curr_cell.initial(); m_curr_cell.initial();
@ -174,8 +185,7 @@ AGG_INLINE void rasterizer_cells_aa<Cell>::add_curr_cell()
{ {
if((m_num_cells & cell_block_mask) == 0) if((m_num_cells & cell_block_mask) == 0)
{ {
if (m_num_blocks >= cell_block_limit) if(m_num_blocks >= cell_block_limit) return;
return;
allocate_block(); allocate_block();
} }
*m_curr_cell_ptr++ = m_curr_cell; *m_curr_cell_ptr++ = m_curr_cell;
@ -200,7 +210,9 @@ AGG_INLINE void rasterizer_cells_aa<Cell>::set_curr_cell(int x, int y)
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Cell> template<class Cell>
AGG_INLINE void rasterizer_cells_aa<Cell>::render_hline(int ey, int x1, int y1, int x2, int y2) AGG_INLINE void rasterizer_cells_aa<Cell>::render_hline(int ey,
int x1, int y1,
int x2, int y2)
{ {
int ex1 = x1 >> poly_subpixel_shift; int ex1 = x1 >> poly_subpixel_shift;
int ex2 = x2 >> poly_subpixel_shift; int ex2 = x2 >> poly_subpixel_shift;
@ -315,10 +327,8 @@ void rasterizer_cells_aa<Cell>::line(int x1, int y1, int x2, int y2)
int cy = (y1 + y2) >> 1; int cy = (y1 + y2) >> 1;
// Bail if values are so large they are likely to wrap // Bail if values are so large they are likely to wrap
if ((std::abs(x1) >= std::numeric_limits<int>::max() / 2) || if ((std::abs(x1) >= std::numeric_limits<int>::max()/2) || (std::abs(y1) >= std::numeric_limits<int>::max()/2) ||
(std::abs(y1) >= std::numeric_limits<int>::max() / 2) || (std::abs(x2) >= std::numeric_limits<int>::max()/2) || (std::abs(y2) >= std::numeric_limits<int>::max()/2))
(std::abs(x2) >= std::numeric_limits<int>::max() / 2) ||
(std::abs(y2) >= std::numeric_limits<int>::max() / 2))
return; return;
line(x1, y1, cx, cy); line(x1, y1, cx, cy);
@ -336,22 +346,14 @@ void rasterizer_cells_aa<Cell>::line(int x1, int y1, int x2, int y2)
int x_from, x_to; int x_from, x_to;
int p, rem, mod, lift, delta, first, incr; int p, rem, mod, lift, delta, first, incr;
if (ex1 < m_min_x) if(ex1 < m_min_x) m_min_x = ex1;
m_min_x = ex1; if(ex1 > m_max_x) m_max_x = ex1;
if (ex1 > m_max_x) if(ey1 < m_min_y) m_min_y = ey1;
m_max_x = ex1; if(ey1 > m_max_y) m_max_y = ey1;
if (ey1 < m_min_y) if(ex2 < m_min_x) m_min_x = ex2;
m_min_y = ey1; if(ex2 > m_max_x) m_max_x = ex2;
if (ey1 > m_max_y) if(ey2 < m_min_y) m_min_y = ey2;
m_max_y = ey1; if(ey2 > m_max_y) m_max_y = ey2;
if (ex2 < m_min_x)
m_min_x = ex2;
if (ex2 > m_max_x)
m_max_x = ex2;
if (ey2 < m_min_y)
m_min_y = ey2;
if (ey2 > m_max_y)
m_max_y = ey2;
set_curr_cell(ex1, ey1); set_curr_cell(ex1, ey1);
@ -476,7 +478,9 @@ void rasterizer_cells_aa<Cell>::allocate_block()
{ {
if(m_num_blocks >= m_max_blocks) if(m_num_blocks >= m_max_blocks)
{ {
cell_type** new_cells = pod_allocator<cell_type*>::allocate(m_max_blocks + cell_block_pool); cell_type** new_cells =
pod_allocator<cell_type*>::allocate(m_max_blocks +
cell_block_pool);
if(m_cells) if(m_cells)
{ {
@ -487,22 +491,30 @@ void rasterizer_cells_aa<Cell>::allocate_block()
m_max_blocks += cell_block_pool; m_max_blocks += cell_block_pool;
} }
m_cells[m_num_blocks++] = pod_allocator<cell_type>::allocate(cell_block_size); m_cells[m_num_blocks++] =
pod_allocator<cell_type>::allocate(cell_block_size);
} }
m_curr_cell_ptr = m_cells[m_curr_block++]; m_curr_cell_ptr = m_cells[m_curr_block++];
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class T> template <class T> static AGG_INLINE void swap_cells(T* a, T* b)
static AGG_INLINE void swap_cells(T* a, T* b)
{ {
T temp = *a; T temp = *a;
*a = *b; *a = *b;
*b = temp; *b = temp;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
enum { qsort_threshold = 9 }; enum
{
qsort_threshold = 9
};
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Cell> template<class Cell>
@ -553,12 +565,8 @@ void qsort_cells(Cell** start, unsigned num)
for(;;) for(;;)
{ {
int x = (*base)->x; int x = (*base)->x;
do do i++; while( (*i)->x < x );
i++; do j--; while( x < (*j)->x );
while ((*i)->x < x);
do
j--;
while (x < (*j)->x);
if(i > j) if(i > j)
{ {
@ -617,12 +625,12 @@ void qsort_cells(Cell** start, unsigned num)
} }
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Cell> template<class Cell>
void rasterizer_cells_aa<Cell>::sort_cells() void rasterizer_cells_aa<Cell>::sort_cells()
{ {
if (m_sorted) if(m_sorted) return; //Perform sort only the first time.
return; // Perform sort only the first time.
add_curr_cell(); add_curr_cell();
m_curr_cell.x = 0x7FFFFFFF; m_curr_cell.x = 0x7FFFFFFF;
@ -630,8 +638,7 @@ void rasterizer_cells_aa<Cell>::sort_cells()
m_curr_cell.cover = 0; m_curr_cell.cover = 0;
m_curr_cell.area = 0; m_curr_cell.area = 0;
if (m_num_cells == 0) if(m_num_cells == 0) return;
return;
// DBG: Check to see if min/max works well. // DBG: Check to see if min/max works well.
//for(unsigned nc = 0; nc < m_num_cells; nc++) //for(unsigned nc = 0; nc < m_num_cells; nc++)
@ -729,26 +736,23 @@ void rasterizer_cells_aa<Cell>::sort_cells()
m_sorted = true; m_sorted = true;
} }
//------------------------------------------------------scanline_hit_test //------------------------------------------------------scanline_hit_test
class scanline_hit_test class scanline_hit_test
{ {
public: public:
scanline_hit_test(int x) scanline_hit_test(int x) : m_x(x), m_hit(false) {}
: m_x(x)
, m_hit(false)
{}
void reset_spans() {} void reset_spans() {}
void finalize(int) {} void finalize(int) {}
void add_cell(int x, int) void add_cell(int x, int)
{ {
if (m_x == x) if(m_x == x) m_hit = true;
m_hit = true;
} }
void add_span(int x, int len, int) void add_span(int x, int len, int)
{ {
if (m_x >= x && m_x < x + len) if(m_x >= x && m_x < x+len) m_hit = true;
m_hit = true;
} }
unsigned num_spans() const { return 1; } unsigned num_spans() const { return 1; }
bool hit() const { return m_hit; } bool hit() const { return m_hit; }
@ -758,6 +762,7 @@ class scanline_hit_test
bool m_hit; bool m_hit;
}; };
} // namespace agg
}
#endif #endif

View file

@ -32,7 +32,8 @@
#include "agg_rasterizer_cells_aa.h" #include "agg_rasterizer_cells_aa.h"
#include "agg_rasterizer_sl_clip.h" #include "agg_rasterizer_sl_clip.h"
namespace agg { namespace agg
{
//-----------------------------------------------------------cell_style_aa //-----------------------------------------------------------cell_style_aa
// A pixel cell. There're no constructors defined and it was done // A pixel cell. There're no constructors defined and it was done
@ -68,16 +69,18 @@ struct cell_style_aa
} }
}; };
//===========================================================layer_order_e //===========================================================layer_order_e
enum layer_order_e { enum layer_order_e
{
layer_unsorted, //------layer_unsorted layer_unsorted, //------layer_unsorted
layer_direct, //------layer_direct layer_direct, //------layer_direct
layer_inverse //------layer_inverse layer_inverse //------layer_inverse
}; };
//==================================================rasterizer_compound_aa //==================================================rasterizer_compound_aa
template<class Clip = rasterizer_sl_clip_int> template<class Clip=rasterizer_sl_clip_int> class rasterizer_compound_aa
class rasterizer_compound_aa
{ {
struct style_info struct style_info
{ {
@ -96,7 +99,8 @@ class rasterizer_compound_aa
typedef typename Clip::conv_type conv_type; typedef typename Clip::conv_type conv_type;
typedef typename Clip::coord_type coord_type; typedef typename Clip::coord_type coord_type;
enum aa_scale_e { enum aa_scale_e
{
aa_shift = 8, aa_shift = 8,
aa_scale = 1 << aa_shift, aa_scale = 1 << aa_shift,
aa_mask = aa_scale - 1, aa_mask = aa_scale - 1,
@ -105,27 +109,24 @@ class rasterizer_compound_aa
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rasterizer_compound_aa() rasterizer_compound_aa() :
: m_outline() m_outline(),
, m_clipper() m_clipper(),
, m_filling_rule(fill_non_zero) m_filling_rule(fill_non_zero),
, m_layer_order(layer_direct) m_layer_order(layer_direct),
, m_styles() m_styles(), // Active Styles
, // Active Styles m_ast(), // Active Style Table (unique values)
m_ast() m_asm(), // Active Style Mask
, // Active Style Table (unique values) m_cells(),
m_asm() m_cover_buf(),
, // Active Style Mask m_master_alpha(),
m_cells() m_min_style(0x7FFFFFFF),
, m_cover_buf() m_max_style(-0x7FFFFFFF),
, m_master_alpha() m_start_x(0),
, m_min_style(0x7FFFFFFF) m_start_y(0),
, m_max_style(-0x7FFFFFFF) m_scan_y(0x7FFFFFFF),
, m_start_x(0) m_sl_start(0),
, m_start_y(0) m_sl_len(0)
, m_scan_y(0x7FFFFFFF)
, m_sl_start(0)
, m_sl_len(0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -156,14 +157,14 @@ class rasterizer_compound_aa
unsigned cmd; unsigned cmd;
vs.rewind(path_id); vs.rewind(path_id);
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset();
while(!is_stop(cmd = vs.vertex(&x, &y))) while(!is_stop(cmd = vs.vertex(&x, &y)))
{ {
add_vertex(x, y, cmd); add_vertex(x, y, cmd);
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
int min_x() const { return m_outline.min_x(); } int min_x() const { return m_outline.min_x(); }
int min_y() const { return m_outline.min_y(); } int min_y() const { return m_outline.min_y(); }
@ -190,8 +191,7 @@ class rasterizer_compound_aa
AGG_INLINE unsigned calculate_alpha(int area, unsigned master_alpha) const AGG_INLINE unsigned calculate_alpha(int area, unsigned master_alpha) const
{ {
int cover = area >> (poly_subpixel_shift*2 + 1 - aa_shift); int cover = area >> (poly_subpixel_shift*2 + 1 - aa_shift);
if (cover < 0) if(cover < 0) cover = -cover;
cover = -cover;
if(m_filling_rule == fill_even_odd) if(m_filling_rule == fill_even_odd)
{ {
cover &= aa_mask2; cover &= aa_mask2;
@ -200,20 +200,17 @@ class rasterizer_compound_aa
cover = aa_scale2 - cover; cover = aa_scale2 - cover;
} }
} }
if (cover > aa_mask) if(cover > aa_mask) cover = aa_mask;
cover = aa_mask;
return (cover * master_alpha + aa_mask) >> aa_shift; return (cover * master_alpha + aa_mask) >> aa_shift;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Sweeps one scanline with one style index. The style ID can be // Sweeps one scanline with one style index. The style ID can be
// determined by calling style(). // determined by calling style().
template<class Scanline> template<class Scanline> bool sweep_scanline(Scanline& sl, int style_idx)
bool sweep_scanline(Scanline& sl, int style_idx)
{ {
int scan_y = m_scan_y - 1; int scan_y = m_scan_y - 1;
if (scan_y > m_outline.max_y()) if(scan_y > m_outline.max_y()) return false;
return false;
sl.reset_spans(); sl.reset_spans();
@ -247,14 +244,16 @@ class rasterizer_compound_aa
if(area) if(area)
{ {
alpha = calculate_alpha((cover << (poly_subpixel_shift + 1)) - area, master_alpha); alpha = calculate_alpha((cover << (poly_subpixel_shift + 1)) - area,
master_alpha);
sl.add_cell(x, alpha); sl.add_cell(x, alpha);
x++; x++;
} }
if(num_cells && cell->x > x) if(num_cells && cell->x > x)
{ {
alpha = calculate_alpha(cover << (poly_subpixel_shift + 1), master_alpha); alpha = calculate_alpha(cover << (poly_subpixel_shift + 1),
master_alpha);
if(alpha) if(alpha)
{ {
sl.add_span(x, cell->x - x, alpha); sl.add_span(x, cell->x - x, alpha);
@ -262,8 +261,7 @@ class rasterizer_compound_aa
} }
} }
if (sl.num_spans() == 0) if(sl.num_spans() == 0) return false;
return false;
sl.finalize(scan_y); sl.finalize(scan_y);
return true; return true;
} }
@ -275,7 +273,8 @@ class rasterizer_compound_aa
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Disable copying // Disable copying
rasterizer_compound_aa(const rasterizer_compound_aa<Clip>&); rasterizer_compound_aa(const rasterizer_compound_aa<Clip>&);
const rasterizer_compound_aa<Clip>& operator=(const rasterizer_compound_aa<Clip>&); const rasterizer_compound_aa<Clip>&
operator = (const rasterizer_compound_aa<Clip>&);
private: private:
rasterizer_cells_aa<cell_style_aa> m_outline; rasterizer_cells_aa<cell_style_aa> m_outline;
@ -298,6 +297,15 @@ class rasterizer_compound_aa
unsigned m_sl_len; unsigned m_sl_len;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::reset() void rasterizer_compound_aa<Clip>::reset()
@ -326,10 +334,12 @@ void rasterizer_compound_aa<Clip>::layer_order(layer_order_e order)
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::clip_box(double x1, double y1, double x2, double y2) void rasterizer_compound_aa<Clip>::clip_box(double x1, double y1,
double x2, double y2)
{ {
reset(); reset();
m_clipper.clip_box(conv_type::upscale(x1), conv_type::upscale(y1), conv_type::upscale(x2), conv_type::upscale(y2)); m_clipper.clip_box(conv_type::upscale(x1), conv_type::upscale(y1),
conv_type::upscale(x2), conv_type::upscale(y2));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -349,46 +359,46 @@ void rasterizer_compound_aa<Clip>::styles(int left, int right)
cell.left = (int16)left; cell.left = (int16)left;
cell.right = (int16)right; cell.right = (int16)right;
m_outline.style(cell); m_outline.style(cell);
if (left >= 0 && left < m_min_style) if(left >= 0 && left < m_min_style) m_min_style = left;
m_min_style = left; if(left >= 0 && left > m_max_style) m_max_style = left;
if (left >= 0 && left > m_max_style) if(right >= 0 && right < m_min_style) m_min_style = right;
m_max_style = left; if(right >= 0 && right > m_max_style) m_max_style = right;
if (right >= 0 && right < m_min_style)
m_min_style = right;
if (right >= 0 && right > m_max_style)
m_max_style = right;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::move_to(int x, int y) void rasterizer_compound_aa<Clip>::move_to(int x, int y)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset(); m_clipper.move_to(m_start_x = conv_type::downscale(x),
m_clipper.move_to(m_start_x = conv_type::downscale(x), m_start_y = conv_type::downscale(y)); m_start_y = conv_type::downscale(y));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::line_to(int x, int y) void rasterizer_compound_aa<Clip>::line_to(int x, int y)
{ {
m_clipper.line_to(m_outline, conv_type::downscale(x), conv_type::downscale(y)); m_clipper.line_to(m_outline,
conv_type::downscale(x),
conv_type::downscale(y));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::move_to_d(double x, double y) void rasterizer_compound_aa<Clip>::move_to_d(double x, double y)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset(); m_clipper.move_to(m_start_x = conv_type::upscale(x),
m_clipper.move_to(m_start_x = conv_type::upscale(x), m_start_y = conv_type::upscale(y)); m_start_y = conv_type::upscale(y));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::line_to_d(double x, double y) void rasterizer_compound_aa<Clip>::line_to_d(double x, double y)
{ {
m_clipper.line_to(m_outline, conv_type::upscale(x), conv_type::upscale(y)); m_clipper.line_to(m_outline,
conv_type::upscale(x),
conv_type::upscale(y));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -399,11 +409,13 @@ void rasterizer_compound_aa<Clip>::add_vertex(double x, double y, unsigned cmd)
{ {
move_to_d(x, y); move_to_d(x, y);
} }
else if (is_vertex(cmd)) else
if(is_vertex(cmd))
{ {
line_to_d(x, y); line_to_d(x, y);
} }
else if (is_close(cmd)) else
if(is_close(cmd))
{ {
m_clipper.line_to(m_outline, m_start_x, m_start_y); m_clipper.line_to(m_outline, m_start_x, m_start_y);
} }
@ -413,20 +425,23 @@ void rasterizer_compound_aa<Clip>::add_vertex(double x, double y, unsigned cmd)
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::edge(int x1, int y1, int x2, int y2) void rasterizer_compound_aa<Clip>::edge(int x1, int y1, int x2, int y2)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset();
m_clipper.move_to(conv_type::downscale(x1), conv_type::downscale(y1)); m_clipper.move_to(conv_type::downscale(x1), conv_type::downscale(y1));
m_clipper.line_to(m_outline, conv_type::downscale(x2), conv_type::downscale(y2)); m_clipper.line_to(m_outline,
conv_type::downscale(x2),
conv_type::downscale(y2));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_compound_aa<Clip>::edge_d(double x1, double y1, double x2, double y2) void rasterizer_compound_aa<Clip>::edge_d(double x1, double y1,
double x2, double y2)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset();
m_clipper.move_to(conv_type::upscale(x1), conv_type::upscale(y1)); m_clipper.move_to(conv_type::upscale(x1), conv_type::upscale(y1));
m_clipper.line_to(m_outline, conv_type::upscale(x2), conv_type::upscale(y2)); m_clipper.line_to(m_outline,
conv_type::upscale(x2),
conv_type::upscale(y2));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -459,10 +474,8 @@ AGG_INLINE bool rasterizer_compound_aa<Clip>::rewind_scanlines()
template<class Clip> template<class Clip>
AGG_INLINE void rasterizer_compound_aa<Clip>::add_style(int style_id) AGG_INLINE void rasterizer_compound_aa<Clip>::add_style(int style_id)
{ {
if (style_id < 0) if(style_id < 0) style_id = 0;
style_id = 0; else style_id -= m_min_style - 1;
else
style_id -= m_min_style - 1;
unsigned nbyte = style_id >> 3; unsigned nbyte = style_id >> 3;
unsigned mask = 1 << (style_id & 7); unsigned mask = 1 << (style_id & 7);
@ -486,8 +499,7 @@ unsigned rasterizer_compound_aa<Clip>::sweep_styles()
{ {
for(;;) for(;;)
{ {
if (m_scan_y > m_outline.max_y()) if(m_scan_y > m_outline.max_y()) return 0;
return 0;
unsigned num_cells = m_outline.scanline_num_cells(m_scan_y); unsigned num_cells = m_outline.scanline_num_cells(m_scan_y);
const cell_style_aa* const* cells = m_outline.scanline_cells(m_scan_y); const cell_style_aa* const* cells = m_outline.scanline_cells(m_scan_y);
unsigned num_styles = m_max_style - m_min_style + 2; unsigned num_styles = m_max_style - m_min_style + 2;
@ -538,7 +550,8 @@ unsigned rasterizer_compound_aa<Clip>::sweep_styles()
while(num_cells--) while(num_cells--)
{ {
curr_cell = *cells++; curr_cell = *cells++;
style_id = (curr_cell->left < 0) ? 0 : curr_cell->left - m_min_style + 1; style_id = (curr_cell->left < 0) ? 0 :
curr_cell->left - m_min_style + 1;
style = &m_styles[style_id]; style = &m_styles[style_id];
if(curr_cell->x == style->last_x) if(curr_cell->x == style->last_x)
@ -557,7 +570,8 @@ unsigned rasterizer_compound_aa<Clip>::sweep_styles()
style->num_cells++; style->num_cells++;
} }
style_id = (curr_cell->right < 0) ? 0 : curr_cell->right - m_min_style + 1; style_id = (curr_cell->right < 0) ? 0 :
curr_cell->right - m_min_style + 1;
style = &m_styles[style_id]; style = &m_styles[style_id];
if(curr_cell->x == style->last_x) if(curr_cell->x == style->last_x)
@ -577,8 +591,7 @@ unsigned rasterizer_compound_aa<Clip>::sweep_styles()
} }
} }
} }
if (m_ast.size() > 1) if(m_ast.size() > 1) break;
break;
++m_scan_y; ++m_scan_y;
} }
++m_scan_y; ++m_scan_y;
@ -586,10 +599,8 @@ unsigned rasterizer_compound_aa<Clip>::sweep_styles()
if(m_layer_order != layer_unsorted) if(m_layer_order != layer_unsorted)
{ {
range_adaptor<pod_vector<unsigned> > ra(m_ast, 1, m_ast.size() - 1); range_adaptor<pod_vector<unsigned> > ra(m_ast, 1, m_ast.size() - 1);
if (m_layer_order == layer_direct) if(m_layer_order == layer_direct) quick_sort(ra, unsigned_greater);
quick_sort(ra, unsigned_greater); else quick_sort(ra, unsigned_less);
else
quick_sort(ra, unsigned_less);
} }
return m_ast.size() - 1; return m_ast.size() - 1;
@ -598,7 +609,8 @@ unsigned rasterizer_compound_aa<Clip>::sweep_styles()
//------------------------------------------------------------------------ //------------------------------------------------------------------------
// Returns style ID depending of the existing style index // Returns style ID depending of the existing style index
template<class Clip> template<class Clip>
AGG_INLINE unsigned rasterizer_compound_aa<Clip>::style(unsigned style_idx) const AGG_INLINE
unsigned rasterizer_compound_aa<Clip>::style(unsigned style_idx) const
{ {
return m_ast[style_idx + 1] + m_min_style - 1; return m_ast[style_idx + 1] + m_min_style - 1;
} }
@ -678,6 +690,9 @@ void rasterizer_compound_aa<Clip>::master_alpha(int style, double alpha)
} }
} }
} // namespace agg }
#endif #endif

View file

@ -17,20 +17,21 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//======================================================rasterizer_outline //======================================================rasterizer_outline
template<class Renderer> template<class Renderer> class rasterizer_outline
class rasterizer_outline
{ {
public: public:
explicit rasterizer_outline(Renderer& ren) explicit rasterizer_outline(Renderer& ren) :
: m_ren(&ren) m_ren(&ren),
, m_start_x(0) m_start_x(0),
, m_start_y(0) m_start_y(0),
, m_vertices(0) m_vertices(0)
{} {}
void attach(Renderer& ren) { m_ren = &ren; } void attach(Renderer& ren) { m_ren = &ren; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void move_to(int x, int y) void move_to(int x, int y)
{ {
@ -46,10 +47,16 @@ class rasterizer_outline
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void move_to_d(double x, double y) { move_to(m_ren->coord(x), m_ren->coord(y)); } void move_to_d(double x, double y)
{
move_to(m_ren->coord(x), m_ren->coord(y));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void line_to_d(double x, double y) { line_to(m_ren->coord(x), m_ren->coord(y)); } void line_to_d(double x, double y)
{
line_to(m_ren->coord(x), m_ren->coord(y));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void close() void close()
@ -72,8 +79,7 @@ class rasterizer_outline
{ {
if(is_end_poly(cmd)) if(is_end_poly(cmd))
{ {
if (is_closed(cmd)) if(is_closed(cmd)) close();
close();
} }
else else
{ {
@ -82,6 +88,7 @@ class rasterizer_outline
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class VertexSource> template<class VertexSource>
void add_path(VertexSource& vs, unsigned path_id=0) void add_path(VertexSource& vs, unsigned path_id=0)
@ -97,9 +104,13 @@ class rasterizer_outline
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class VertexSource, class ColorStorage, class PathId> template<class VertexSource, class ColorStorage, class PathId>
void render_all_paths(VertexSource& vs, const ColorStorage& colors, const PathId& path_id, unsigned num_paths) void render_all_paths(VertexSource& vs,
const ColorStorage& colors,
const PathId& path_id,
unsigned num_paths)
{ {
for(unsigned i = 0; i < num_paths; i++) for(unsigned i = 0; i < num_paths; i++)
{ {
@ -108,9 +119,9 @@ class rasterizer_outline
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Ctrl> template<class Ctrl> void render_ctrl(Ctrl& c)
void render_ctrl(Ctrl& c)
{ {
unsigned i; unsigned i;
for(i = 0; i < c.num_paths(); i++) for(i = 0; i < c.num_paths(); i++)
@ -120,6 +131,7 @@ class rasterizer_outline
} }
} }
private: private:
Renderer* m_ren; Renderer* m_ren;
int m_start_x; int m_start_x;
@ -127,6 +139,9 @@ class rasterizer_outline
unsigned m_vertices; unsigned m_vertices;
}; };
} // namespace agg
}
#endif #endif

View file

@ -19,17 +19,14 @@
#include "agg_line_aa_basics.h" #include "agg_line_aa_basics.h"
#include "agg_vertex_sequence.h" #include "agg_vertex_sequence.h"
namespace agg { namespace agg
{
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
inline bool cmp_dist_start(int d) inline bool cmp_dist_start(int d) { return d > 0; }
{ inline bool cmp_dist_end(int d) { return d <= 0; }
return d > 0;
}
inline bool cmp_dist_end(int d)
{
return d <= 0;
}
//-----------------------------------------------------------line_aa_vertex //-----------------------------------------------------------line_aa_vertex
// Vertex (x, y) with the distance to the next one. The last vertex has // Vertex (x, y) with the distance to the next one. The last vertex has
@ -41,22 +38,26 @@ struct line_aa_vertex
int len; int len;
line_aa_vertex() {} line_aa_vertex() {}
line_aa_vertex(int x_, int y_) line_aa_vertex(int x_, int y_) :
: x(x_) x(x_),
, y(y_) y(y_),
, len(0) len(0)
{} {
}
bool operator () (const line_aa_vertex& val) bool operator () (const line_aa_vertex& val)
{ {
double dx = val.x - x; double dx = val.x - x;
double dy = val.y - y; double dy = val.y - y;
return (len = uround(sqrt(dx * dx + dy * dy))) > (line_subpixel_scale + line_subpixel_scale / 2); return (len = uround(sqrt(dx * dx + dy * dy))) >
(line_subpixel_scale + line_subpixel_scale / 2);
} }
}; };
//----------------------------------------------------------outline_aa_join_e //----------------------------------------------------------outline_aa_join_e
enum outline_aa_join_e { enum outline_aa_join_e
{
outline_no_join, //-----outline_no_join outline_no_join, //-----outline_no_join
outline_miter_join, //-----outline_miter_join outline_miter_join, //-----outline_miter_join
outline_round_join, //-----outline_round_join outline_round_join, //-----outline_round_join
@ -64,8 +65,7 @@ enum outline_aa_join_e {
}; };
//=======================================================rasterizer_outline_aa //=======================================================rasterizer_outline_aa
template<class Renderer, class Coord = line_coord> template<class Renderer, class Coord=line_coord> class rasterizer_outline_aa
class rasterizer_outline_aa
{ {
private: private:
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -85,19 +85,23 @@ class rasterizer_outline_aa
typedef line_aa_vertex vertex_type; typedef line_aa_vertex vertex_type;
typedef vertex_sequence<vertex_type, 6> vertex_storage_type; typedef vertex_sequence<vertex_type, 6> vertex_storage_type;
explicit rasterizer_outline_aa(Renderer& ren) explicit rasterizer_outline_aa(Renderer& ren) :
: m_ren(&ren) m_ren(&ren),
, m_line_join(ren.accurate_join_only() ? outline_miter_accurate_join : outline_round_join) m_line_join(ren.accurate_join_only() ?
, m_round_cap(false) outline_miter_accurate_join :
, m_start_x(0) outline_round_join),
, m_start_y(0) m_round_cap(false),
m_start_x(0),
m_start_y(0)
{} {}
void attach(Renderer& ren) { m_ren = &ren; } void attach(Renderer& ren) { m_ren = &ren; }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
void line_join(outline_aa_join_e join) void line_join(outline_aa_join_e join)
{ {
m_line_join = m_ren->accurate_join_only() ? outline_miter_accurate_join : join; m_line_join = m_ren->accurate_join_only() ?
outline_miter_accurate_join :
join;
} }
bool line_join() const { return m_line_join; } bool line_join() const { return m_line_join; }
@ -106,16 +110,28 @@ class rasterizer_outline_aa
bool round_cap() const { return m_round_cap; } bool round_cap() const { return m_round_cap; }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
void move_to(int x, int y) { m_src_vertices.modify_last(vertex_type(m_start_x = x, m_start_y = y)); } void move_to(int x, int y)
{
m_src_vertices.modify_last(vertex_type(m_start_x = x, m_start_y = y));
}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
void line_to(int x, int y) { m_src_vertices.add(vertex_type(x, y)); } void line_to(int x, int y)
{
m_src_vertices.add(vertex_type(x, y));
}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
void move_to_d(double x, double y) { move_to(Coord::conv(x), Coord::conv(y)); } void move_to_d(double x, double y)
{
move_to(Coord::conv(x), Coord::conv(y));
}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
void line_to_d(double x, double y) { line_to(Coord::conv(x), Coord::conv(y)); } void line_to_d(double x, double y)
{
line_to(Coord::conv(x), Coord::conv(y));
}
//------------------------------------------------------------------------ //------------------------------------------------------------------------
void render(bool close_polygon); void render(bool close_polygon);
@ -161,9 +177,13 @@ class rasterizer_outline_aa
render(false); render(false);
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class VertexSource, class ColorStorage, class PathId> template<class VertexSource, class ColorStorage, class PathId>
void render_all_paths(VertexSource& vs, const ColorStorage& colors, const PathId& path_id, unsigned num_paths) void render_all_paths(VertexSource& vs,
const ColorStorage& colors,
const PathId& path_id,
unsigned num_paths)
{ {
for(unsigned i = 0; i < num_paths; i++) for(unsigned i = 0; i < num_paths; i++)
{ {
@ -172,9 +192,9 @@ class rasterizer_outline_aa
} }
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Ctrl> template<class Ctrl> void render_ctrl(Ctrl& c)
void render_ctrl(Ctrl& c)
{ {
unsigned i; unsigned i;
for(i = 0; i < c.num_paths(); i++) for(i = 0; i < c.num_paths(); i++)
@ -186,7 +206,8 @@ class rasterizer_outline_aa
private: private:
rasterizer_outline_aa(const rasterizer_outline_aa<Renderer, Coord>&); rasterizer_outline_aa(const rasterizer_outline_aa<Renderer, Coord>&);
const rasterizer_outline_aa<Renderer, Coord>& operator=(const rasterizer_outline_aa<Renderer, Coord>&); const rasterizer_outline_aa<Renderer, Coord>& operator =
(const rasterizer_outline_aa<Renderer, Coord>&);
Renderer* m_ren; Renderer* m_ren;
vertex_storage_type m_src_vertices; vertex_storage_type m_src_vertices;
@ -196,9 +217,18 @@ class rasterizer_outline_aa
int m_start_y; int m_start_y;
}; };
//---------------------------------------------------------------------------- //----------------------------------------------------------------------------
template<class Renderer, class Coord> template<class Renderer, class Coord>
void rasterizer_outline_aa<Renderer, Coord>::draw(draw_vars& dv, unsigned start, unsigned end) void rasterizer_outline_aa<Renderer, Coord>::draw(draw_vars& dv,
unsigned start,
unsigned end)
{ {
unsigned i; unsigned i;
const vertex_storage_type::value_type* v; const vertex_storage_type::value_type* v;
@ -215,24 +245,15 @@ void rasterizer_outline_aa<Renderer, Coord>::draw(draw_vars& dv, unsigned start,
switch(dv.flags) switch(dv.flags)
{ {
case 0: case 0: m_ren->line3(dv.curr, dv.xb1, dv.yb1, dv.xb2, dv.yb2); break;
m_ren->line3(dv.curr, dv.xb1, dv.yb1, dv.xb2, dv.yb2); case 1: m_ren->line2(dv.curr, dv.xb2, dv.yb2); break;
break; case 2: m_ren->line1(dv.curr, dv.xb1, dv.yb1); break;
case 1: case 3: m_ren->line0(dv.curr); break;
m_ren->line2(dv.curr, dv.xb2, dv.yb2);
break;
case 2:
m_ren->line1(dv.curr, dv.xb1, dv.yb1);
break;
case 3:
m_ren->line0(dv.curr);
break;
} }
if(m_line_join == outline_round_join && (dv.flags & 2) == 0) if(m_line_join == outline_round_join && (dv.flags & 2) == 0)
{ {
m_ren->pie(dv.curr.x2, m_ren->pie(dv.curr.x2, dv.curr.y2,
dv.curr.y2,
dv.curr.x2 + (dv.curr.y2 - dv.curr.y1), dv.curr.x2 + (dv.curr.y2 - dv.curr.y1),
dv.curr.y2 - (dv.curr.x2 - dv.curr.x1), dv.curr.y2 - (dv.curr.x2 - dv.curr.x1),
dv.curr.x2 + (dv.next.y2 - dv.next.y1), dv.curr.x2 + (dv.next.y2 - dv.next.y1),
@ -245,8 +266,7 @@ void rasterizer_outline_aa<Renderer, Coord>::draw(draw_vars& dv, unsigned start,
dv.lnext = m_src_vertices[dv.idx].len; dv.lnext = m_src_vertices[dv.idx].len;
++dv.idx; ++dv.idx;
if (dv.idx >= m_src_vertices.size()) if(dv.idx >= m_src_vertices.size()) dv.idx = 0;
dv.idx = 0;
v = &m_src_vertices[dv.idx]; v = &m_src_vertices[dv.idx];
dv.x2 = v->x; dv.x2 = v->x;
@ -265,7 +285,8 @@ void rasterizer_outline_aa<Renderer, Coord>::draw(draw_vars& dv, unsigned start,
case outline_miter_join: case outline_miter_join:
dv.flags >>= 1; dv.flags >>= 1;
dv.flags |= ((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1); dv.flags |= ((dv.curr.diagonal_quadrant() ==
dv.next.diagonal_quadrant()) << 1);
if((dv.flags & 2) == 0) if((dv.flags & 2) == 0)
{ {
bisectrix(dv.curr, dv.next, &dv.xb2, &dv.yb2); bisectrix(dv.curr, dv.next, &dv.xb2, &dv.yb2);
@ -274,7 +295,8 @@ void rasterizer_outline_aa<Renderer, Coord>::draw(draw_vars& dv, unsigned start,
case outline_round_join: case outline_round_join:
dv.flags >>= 1; dv.flags >>= 1;
dv.flags |= ((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1); dv.flags |= ((dv.curr.diagonal_quadrant() ==
dv.next.diagonal_quadrant()) << 1);
break; break;
case outline_miter_accurate_join: case outline_miter_accurate_join:
@ -285,6 +307,9 @@ void rasterizer_outline_aa<Renderer, Coord>::draw(draw_vars& dv, unsigned start,
} }
} }
//---------------------------------------------------------------------------- //----------------------------------------------------------------------------
template<class Renderer, class Coord> template<class Renderer, class Coord>
void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon) void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
@ -337,7 +362,8 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
case outline_miter_join: case outline_miter_join:
case outline_round_join: case outline_round_join:
dv.flags = (prev.diagonal_quadrant() == dv.curr.diagonal_quadrant()) | dv.flags =
(prev.diagonal_quadrant() == dv.curr.diagonal_quadrant()) |
((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1); ((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1);
break; break;
@ -365,7 +391,8 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
case 1: case 1:
break; break;
case 2: { case 2:
{
v = &m_src_vertices[0]; v = &m_src_vertices[0];
x1 = v->x; x1 = v->x;
y1 = v->y; y1 = v->y;
@ -378,7 +405,11 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
{ {
m_ren->semidot(cmp_dist_start, x1, y1, x1 + (y2 - y1), y1 - (x2 - x1)); m_ren->semidot(cmp_dist_start, x1, y1, x1 + (y2 - y1), y1 - (x2 - x1));
} }
m_ren->line3(lp, x1 + (y2 - y1), y1 - (x2 - x1), x2 + (y2 - y1), y2 - (x2 - x1)); m_ren->line3(lp,
x1 + (y2 - y1),
y1 - (x2 - x1),
x2 + (y2 - y1),
y2 - (x2 - x1));
if(m_round_cap) if(m_round_cap)
{ {
m_ren->semidot(cmp_dist_end, x2, y2, x2 + (y2 - y1), y2 - (x2 - x1)); m_ren->semidot(cmp_dist_end, x2, y2, x2 + (y2 - y1), y2 - (x2 - x1));
@ -386,7 +417,8 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
} }
break; break;
case 3: { case 3:
{
int x3, y3; int x3, y3;
int lnext; int lnext;
v = &m_src_vertices[0]; v = &m_src_vertices[0];
@ -410,18 +442,23 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
if(m_line_join == outline_round_join) if(m_line_join == outline_round_join)
{ {
m_ren->line3(lp1, x1 + (y2 - y1), y1 - (x2 - x1), x2 + (y2 - y1), y2 - (x2 - x1)); m_ren->line3(lp1, x1 + (y2 - y1), y1 - (x2 - x1),
x2 + (y2 - y1), y2 - (x2 - x1));
m_ren->pie(x2, y2, x2 + (y2 - y1), y2 - (x2 - x1), x2 + (y3 - y2), y2 - (x3 - x2)); m_ren->pie(x2, y2, x2 + (y2 - y1), y2 - (x2 - x1),
x2 + (y3 - y2), y2 - (x3 - x2));
m_ren->line3(lp2, x2 + (y3 - y2), y2 - (x3 - x2), x3 + (y3 - y2), y3 - (x3 - x2)); m_ren->line3(lp2, x2 + (y3 - y2), y2 - (x3 - x2),
x3 + (y3 - y2), y3 - (x3 - x2));
} }
else else
{ {
bisectrix(lp1, lp2, &dv.xb1, &dv.yb1); bisectrix(lp1, lp2, &dv.xb1, &dv.yb1);
m_ren->line3(lp1, x1 + (y2 - y1), y1 - (x2 - x1), dv.xb1, dv.yb1); m_ren->line3(lp1, x1 + (y2 - y1), y1 - (x2 - x1),
dv.xb1, dv.yb1);
m_ren->line3(lp2, dv.xb1, dv.yb1, x3 + (y3 - y2), y3 - (x3 - x2)); m_ren->line3(lp2, dv.xb1, dv.yb1,
x3 + (y3 - y2), y3 - (x3 - x2));
} }
if(m_round_cap) if(m_round_cap)
{ {
@ -430,7 +467,8 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
} }
break; break;
default: { default:
{
dv.idx = 3; dv.idx = 3;
v = &m_src_vertices[0]; v = &m_src_vertices[0];
@ -468,7 +506,8 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
case outline_miter_join: case outline_miter_join:
case outline_round_join: case outline_round_join:
dv.flags = (prev.diagonal_quadrant() == dv.curr.diagonal_quadrant()) | dv.flags =
(prev.diagonal_quadrant() == dv.curr.diagonal_quadrant()) |
((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1); ((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1);
break; break;
@ -485,23 +524,25 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
{ {
if(m_line_join == outline_round_join) if(m_line_join == outline_round_join)
{ {
m_ren->line3(prev, x1 + (y2 - y1), y1 - (x2 - x1), x2 + (y2 - y1), y2 - (x2 - x1)); m_ren->line3(prev, x1 + (y2 - y1), y1 - (x2 - x1),
m_ren->pie(prev.x2, x2 + (y2 - y1), y2 - (x2 - x1));
prev.y2, m_ren->pie(prev.x2, prev.y2,
x2 + (y2 - y1), x2 + (y2 - y1), y2 - (x2 - x1),
y2 - (x2 - x1),
dv.curr.x1 + (dv.curr.y2 - dv.curr.y1), dv.curr.x1 + (dv.curr.y2 - dv.curr.y1),
dv.curr.y1 - (dv.curr.x2 - dv.curr.x1)); dv.curr.y1 - (dv.curr.x2 - dv.curr.x1));
} }
else else
{ {
bisectrix(prev, dv.curr, &dv.xb1, &dv.yb1); bisectrix(prev, dv.curr, &dv.xb1, &dv.yb1);
m_ren->line3(prev, x1 + (y2 - y1), y1 - (x2 - x1), dv.xb1, dv.yb1); m_ren->line3(prev, x1 + (y2 - y1), y1 - (x2 - x1),
dv.xb1, dv.yb1);
} }
} }
else else
{ {
m_ren->line1(prev, x1 + (y2 - y1), y1 - (x2 - x1)); m_ren->line1(prev,
x1 + (y2 - y1),
y1 - (x2 - x1));
} }
if((dv.flags & 2) == 0 && m_line_join != outline_round_join) if((dv.flags & 2) == 0 && m_line_join != outline_round_join)
{ {
@ -522,9 +563,7 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
} }
else else
{ {
m_ren->line3(dv.curr, m_ren->line3(dv.curr, dv.xb1, dv.yb1,
dv.xb1,
dv.yb1,
dv.curr.x2 + (dv.curr.y2 - dv.curr.y1), dv.curr.x2 + (dv.curr.y2 - dv.curr.y1),
dv.curr.y2 - (dv.curr.x2 - dv.curr.x1)); dv.curr.y2 - (dv.curr.x2 - dv.curr.x1));
} }
@ -537,12 +576,11 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
} }
if(m_round_cap) if(m_round_cap)
{ {
m_ren->semidot(cmp_dist_end, m_ren->semidot(cmp_dist_end, dv.curr.x2, dv.curr.y2,
dv.curr.x2,
dv.curr.y2,
dv.curr.x2 + (dv.curr.y2 - dv.curr.y1), dv.curr.x2 + (dv.curr.y2 - dv.curr.y1),
dv.curr.y2 - (dv.curr.x2 - dv.curr.x1)); dv.curr.y2 - (dv.curr.x2 - dv.curr.x1));
} }
} }
break; break;
} }
@ -550,6 +588,9 @@ void rasterizer_outline_aa<Renderer, Coord>::render(bool close_polygon)
m_src_vertices.remove_all(); m_src_vertices.remove_all();
} }
} // namespace agg
}
#endif #endif

View file

@ -33,7 +33,10 @@
#include "agg_rasterizer_sl_clip.h" #include "agg_rasterizer_sl_clip.h"
#include "agg_gamma_functions.h" #include "agg_gamma_functions.h"
namespace agg {
namespace agg
{
//-----------------------------------------------------------------cell_aa //-----------------------------------------------------------------cell_aa
// A pixel cell. There're no constructors defined and it was done // A pixel cell. There're no constructors defined and it was done
@ -56,9 +59,13 @@ struct cell_aa
void style(const cell_aa&) {} void style(const cell_aa&) {}
int not_equal(int ex, int ey, const cell_aa&) const { return (ex - x) | (ey - y); } int not_equal(int ex, int ey, const cell_aa&) const
{
return (ex - x) | (ey - y);
}
}; };
//==================================================rasterizer_scanline_aa //==================================================rasterizer_scanline_aa
// Polygon rasterizer that is used to render filled polygons with // Polygon rasterizer that is used to render filled polygons with
// high-quality Anti-Aliasing. Internally, by default, the class uses // high-quality Anti-Aliasing. Internally, by default, the class uses
@ -90,17 +97,23 @@ struct cell_aa
// //
// filling_rule() and gamma() can be called anytime before "sweeping". // filling_rule() and gamma() can be called anytime before "sweeping".
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip = rasterizer_sl_clip_int> template<class Clip=rasterizer_sl_clip_int> class rasterizer_scanline_aa
class rasterizer_scanline_aa
{ {
enum status { status_initial, status_move_to, status_line_to, status_closed }; enum status
{
status_initial,
status_move_to,
status_line_to,
status_closed
};
public: public:
typedef Clip clip_type; typedef Clip clip_type;
typedef typename Clip::conv_type conv_type; typedef typename Clip::conv_type conv_type;
typedef typename Clip::coord_type coord_type; typedef typename Clip::coord_type coord_type;
enum aa_scale_e { enum aa_scale_e
{
aa_shift = 8, aa_shift = 8,
aa_scale = 1 << aa_shift, aa_scale = 1 << aa_shift,
aa_mask = aa_scale - 1, aa_mask = aa_scale - 1,
@ -109,30 +122,29 @@ class rasterizer_scanline_aa
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rasterizer_scanline_aa() rasterizer_scanline_aa() :
: m_outline() m_outline(),
, m_clipper() m_clipper(),
, m_filling_rule(fill_non_zero) m_filling_rule(fill_non_zero),
, m_auto_close(true) m_auto_close(true),
, m_start_x(0) m_start_x(0),
, m_start_y(0) m_start_y(0),
, m_status(status_initial) m_status(status_initial)
{ {
int i; int i;
for (i = 0; i < aa_scale; i++) for(i = 0; i < aa_scale; i++) m_gamma[i] = i;
m_gamma[i] = i;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class GammaF> template<class GammaF>
rasterizer_scanline_aa(const GammaF& gamma_function) rasterizer_scanline_aa(const GammaF& gamma_function) :
: m_outline() m_outline(),
, m_clipper(m_outline) m_clipper(m_outline),
, m_filling_rule(fill_non_zero) m_filling_rule(fill_non_zero),
, m_auto_close(true) m_auto_close(true),
, m_start_x(0) m_start_x(0),
, m_start_y(0) m_start_y(0),
, m_status(status_initial) m_status(status_initial)
{ {
gamma(gamma_function); gamma(gamma_function);
} }
@ -145,8 +157,7 @@ class rasterizer_scanline_aa
void auto_close(bool flag) { m_auto_close = flag; } void auto_close(bool flag) { m_auto_close = flag; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class GammaF> template<class GammaF> void gamma(const GammaF& gamma_function)
void gamma(const GammaF& gamma_function)
{ {
int i; int i;
for(i = 0; i < aa_scale; i++) for(i = 0; i < aa_scale; i++)
@ -156,7 +167,10 @@ class rasterizer_scanline_aa
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
unsigned apply_gamma(unsigned cover) const { return m_gamma[cover]; } unsigned apply_gamma(unsigned cover) const
{
return m_gamma[cover];
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void move_to(int x, int y); void move_to(int x, int y);
@ -178,8 +192,7 @@ class rasterizer_scanline_aa
unsigned cmd; unsigned cmd;
vs.rewind(path_id); vs.rewind(path_id);
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset();
while(!is_stop(cmd = vs.vertex(&x, &y))) while(!is_stop(cmd = vs.vertex(&x, &y)))
{ {
add_vertex(x, y, cmd); add_vertex(x, y, cmd);
@ -202,8 +215,7 @@ class rasterizer_scanline_aa
{ {
int cover = area >> (poly_subpixel_shift*2 + 1 - aa_shift); int cover = area >> (poly_subpixel_shift*2 + 1 - aa_shift);
if (cover < 0) if(cover < 0) cover = -cover;
cover = -cover;
if(m_filling_rule == fill_even_odd) if(m_filling_rule == fill_even_odd)
{ {
cover &= aa_mask2; cover &= aa_mask2;
@ -212,19 +224,16 @@ class rasterizer_scanline_aa
cover = aa_scale2 - cover; cover = aa_scale2 - cover;
} }
} }
if (cover > aa_mask) if(cover > aa_mask) cover = aa_mask;
cover = aa_mask;
return m_gamma[cover]; return m_gamma[cover];
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> bool sweep_scanline(Scanline& sl)
bool sweep_scanline(Scanline& sl)
{ {
for(;;) for(;;)
{ {
if (m_scan_y > m_outline.max_y()) if(m_scan_y > m_outline.max_y()) return false;
return false;
sl.reset_spans(); sl.reset_spans();
unsigned num_cells = m_outline.scanline_num_cells(m_scan_y); unsigned num_cells = m_outline.scanline_num_cells(m_scan_y);
const cell_aa* const* cells = m_outline.scanline_cells(m_scan_y); const cell_aa* const* cells = m_outline.scanline_cells(m_scan_y);
@ -243,8 +252,7 @@ class rasterizer_scanline_aa
while(--num_cells) while(--num_cells)
{ {
cur_cell = *++cells; cur_cell = *++cells;
if (cur_cell->x != x) if(cur_cell->x != x) break;
break;
area += cur_cell->area; area += cur_cell->area;
cover += cur_cell->cover; cover += cur_cell->cover;
} }
@ -269,8 +277,7 @@ class rasterizer_scanline_aa
} }
} }
if (sl.num_spans()) if(sl.num_spans()) break;
break;
++m_scan_y; ++m_scan_y;
} }
@ -282,11 +289,13 @@ class rasterizer_scanline_aa
//-------------------------------------------------------------------- //--------------------------------------------------------------------
bool hit_test(int tx, int ty); bool hit_test(int tx, int ty);
private: private:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Disable copying // Disable copying
rasterizer_scanline_aa(const rasterizer_scanline_aa<Clip>&); rasterizer_scanline_aa(const rasterizer_scanline_aa<Clip>&);
const rasterizer_scanline_aa<Clip>& operator=(const rasterizer_scanline_aa<Clip>&); const rasterizer_scanline_aa<Clip>&
operator = (const rasterizer_scanline_aa<Clip>&);
private: private:
rasterizer_cells_aa<cell_aa> m_outline; rasterizer_cells_aa<cell_aa> m_outline;
@ -300,6 +309,17 @@ class rasterizer_scanline_aa
int m_scan_y; int m_scan_y;
}; };
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::reset() void rasterizer_scanline_aa<Clip>::reset()
@ -317,10 +337,12 @@ void rasterizer_scanline_aa<Clip>::filling_rule(filling_rule_e filling_rule)
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::clip_box(double x1, double y1, double x2, double y2) void rasterizer_scanline_aa<Clip>::clip_box(double x1, double y1,
double x2, double y2)
{ {
reset(); reset();
m_clipper.clip_box(conv_type::upscale(x1), conv_type::upscale(y1), conv_type::upscale(x2), conv_type::upscale(y2)); m_clipper.clip_box(conv_type::upscale(x1), conv_type::upscale(y1),
conv_type::upscale(x2), conv_type::upscale(y2));
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
@ -346,11 +368,10 @@ void rasterizer_scanline_aa<Clip>::close_polygon()
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::move_to(int x, int y) void rasterizer_scanline_aa<Clip>::move_to(int x, int y)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset(); if(m_auto_close) close_polygon();
if (m_auto_close) m_clipper.move_to(m_start_x = conv_type::downscale(x),
close_polygon(); m_start_y = conv_type::downscale(y));
m_clipper.move_to(m_start_x = conv_type::downscale(x), m_start_y = conv_type::downscale(y));
m_status = status_move_to; m_status = status_move_to;
} }
@ -358,7 +379,9 @@ void rasterizer_scanline_aa<Clip>::move_to(int x, int y)
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::line_to(int x, int y) void rasterizer_scanline_aa<Clip>::line_to(int x, int y)
{ {
m_clipper.line_to(m_outline, conv_type::downscale(x), conv_type::downscale(y)); m_clipper.line_to(m_outline,
conv_type::downscale(x),
conv_type::downscale(y));
m_status = status_line_to; m_status = status_line_to;
} }
@ -366,11 +389,10 @@ void rasterizer_scanline_aa<Clip>::line_to(int x, int y)
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::move_to_d(double x, double y) void rasterizer_scanline_aa<Clip>::move_to_d(double x, double y)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset(); if(m_auto_close) close_polygon();
if (m_auto_close) m_clipper.move_to(m_start_x = conv_type::upscale(x),
close_polygon(); m_start_y = conv_type::upscale(y));
m_clipper.move_to(m_start_x = conv_type::upscale(x), m_start_y = conv_type::upscale(y));
m_status = status_move_to; m_status = status_move_to;
} }
@ -378,7 +400,9 @@ void rasterizer_scanline_aa<Clip>::move_to_d(double x, double y)
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::line_to_d(double x, double y) void rasterizer_scanline_aa<Clip>::line_to_d(double x, double y)
{ {
m_clipper.line_to(m_outline, conv_type::upscale(x), conv_type::upscale(y)); m_clipper.line_to(m_outline,
conv_type::upscale(x),
conv_type::upscale(y));
m_status = status_line_to; m_status = status_line_to;
} }
@ -390,11 +414,13 @@ void rasterizer_scanline_aa<Clip>::add_vertex(double x, double y, unsigned cmd)
{ {
move_to_d(x, y); move_to_d(x, y);
} }
else if (is_vertex(cmd)) else
if(is_vertex(cmd))
{ {
line_to_d(x, y); line_to_d(x, y);
} }
else if (is_close(cmd)) else
if(is_close(cmd))
{ {
close_polygon(); close_polygon();
} }
@ -404,21 +430,24 @@ void rasterizer_scanline_aa<Clip>::add_vertex(double x, double y, unsigned cmd)
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::edge(int x1, int y1, int x2, int y2) void rasterizer_scanline_aa<Clip>::edge(int x1, int y1, int x2, int y2)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset();
m_clipper.move_to(conv_type::downscale(x1), conv_type::downscale(y1)); m_clipper.move_to(conv_type::downscale(x1), conv_type::downscale(y1));
m_clipper.line_to(m_outline, conv_type::downscale(x2), conv_type::downscale(y2)); m_clipper.line_to(m_outline,
conv_type::downscale(x2),
conv_type::downscale(y2));
m_status = status_move_to; m_status = status_move_to;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::edge_d(double x1, double y1, double x2, double y2) void rasterizer_scanline_aa<Clip>::edge_d(double x1, double y1,
double x2, double y2)
{ {
if (m_outline.sorted()) if(m_outline.sorted()) reset();
reset();
m_clipper.move_to(conv_type::upscale(x1), conv_type::upscale(y1)); m_clipper.move_to(conv_type::upscale(x1), conv_type::upscale(y1));
m_clipper.line_to(m_outline, conv_type::upscale(x2), conv_type::upscale(y2)); m_clipper.line_to(m_outline,
conv_type::upscale(x2),
conv_type::upscale(y2));
m_status = status_move_to; m_status = status_move_to;
} }
@ -426,8 +455,7 @@ void rasterizer_scanline_aa<Clip>::edge_d(double x1, double y1, double x2, doubl
template<class Clip> template<class Clip>
void rasterizer_scanline_aa<Clip>::sort() void rasterizer_scanline_aa<Clip>::sort()
{ {
if (m_auto_close) if(m_auto_close) close_polygon();
close_polygon();
m_outline.sort_cells(); m_outline.sort_cells();
} }
@ -435,8 +463,7 @@ void rasterizer_scanline_aa<Clip>::sort()
template<class Clip> template<class Clip>
AGG_INLINE bool rasterizer_scanline_aa<Clip>::rewind_scanlines() AGG_INLINE bool rasterizer_scanline_aa<Clip>::rewind_scanlines()
{ {
if (m_auto_close) if(m_auto_close) close_polygon();
close_polygon();
m_outline.sort_cells(); m_outline.sort_cells();
if(m_outline.total_cells() == 0) if(m_outline.total_cells() == 0)
{ {
@ -446,14 +473,16 @@ AGG_INLINE bool rasterizer_scanline_aa<Clip>::rewind_scanlines()
return true; return true;
} }
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Clip> template<class Clip>
AGG_INLINE bool rasterizer_scanline_aa<Clip>::navigate_scanline(int y) AGG_INLINE bool rasterizer_scanline_aa<Clip>::navigate_scanline(int y)
{ {
if (m_auto_close) if(m_auto_close) close_polygon();
close_polygon();
m_outline.sort_cells(); m_outline.sort_cells();
if (m_outline.total_cells() == 0 || y < m_outline.min_y() || y > m_outline.max_y()) if(m_outline.total_cells() == 0 ||
y < m_outline.min_y() ||
y > m_outline.max_y())
{ {
return false; return false;
} }
@ -465,13 +494,16 @@ AGG_INLINE bool rasterizer_scanline_aa<Clip>::navigate_scanline(int y)
template<class Clip> template<class Clip>
bool rasterizer_scanline_aa<Clip>::hit_test(int tx, int ty) bool rasterizer_scanline_aa<Clip>::hit_test(int tx, int ty)
{ {
if (!navigate_scanline(ty)) if(!navigate_scanline(ty)) return false;
return false;
scanline_hit_test sl(tx); scanline_hit_test sl(tx);
sweep_scanline(sl); sweep_scanline(sl);
return sl.hit(); return sl.hit();
} }
} // namespace agg
}
#endif #endif

View file

@ -17,9 +17,11 @@
#include "agg_clip_liang_barsky.h" #include "agg_clip_liang_barsky.h"
namespace agg { namespace agg
{
//--------------------------------------------------------poly_max_coord_e //--------------------------------------------------------poly_max_coord_e
enum poly_max_coord_e { enum poly_max_coord_e
{
poly_max_coord = (1 << 30) - 1 //----poly_max_coord poly_max_coord = (1 << 30) - 1 //----poly_max_coord
}; };
@ -27,7 +29,10 @@ enum poly_max_coord_e {
struct ras_conv_int struct ras_conv_int
{ {
typedef int coord_type; typedef int coord_type;
static AGG_INLINE int mul_div(double a, double b, double c) { return iround(a * b / c); } static AGG_INLINE int mul_div(double a, double b, double c)
{
return iround(a * b / c);
}
static int xi(int v) { return v; } static int xi(int v) { return v; }
static int yi(int v) { return v; } static int yi(int v) { return v; }
static int upscale(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); } static int upscale(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); }
@ -55,7 +60,10 @@ struct ras_conv_int_sat
struct ras_conv_int_3x struct ras_conv_int_3x
{ {
typedef int coord_type; typedef int coord_type;
static AGG_INLINE int mul_div(double a, double b, double c) { return iround(a * b / c); } static AGG_INLINE int mul_div(double a, double b, double c)
{
return iround(a * b / c);
}
static int xi(int v) { return v * 3; } static int xi(int v) { return v * 3; }
static int yi(int v) { return v; } static int yi(int v) { return v; }
static int upscale(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); } static int upscale(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); }
@ -66,7 +74,10 @@ struct ras_conv_int_3x
struct ras_conv_dbl struct ras_conv_dbl
{ {
typedef double coord_type; typedef double coord_type;
static AGG_INLINE double mul_div(double a, double b, double c) { return a * b / c; } static AGG_INLINE double mul_div(double a, double b, double c)
{
return a * b / c;
}
static int xi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); } static int xi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); }
static int yi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); } static int yi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); }
static double upscale(double v) { return v; } static double upscale(double v) { return v; }
@ -77,16 +88,22 @@ struct ras_conv_dbl
struct ras_conv_dbl_3x struct ras_conv_dbl_3x
{ {
typedef double coord_type; typedef double coord_type;
static AGG_INLINE double mul_div(double a, double b, double c) { return a * b / c; } static AGG_INLINE double mul_div(double a, double b, double c)
{
return a * b / c;
}
static int xi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale) * 3); } static int xi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale) * 3); }
static int yi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); } static int yi(double v) { return iround(v * static_cast<double>(poly_subpixel_scale)); }
static double upscale(double v) { return v; } static double upscale(double v) { return v; }
static double downscale(int v) { return v / static_cast<double>(poly_subpixel_scale); } static double downscale(int v) { return v / static_cast<double>(poly_subpixel_scale); }
}; };
//------------------------------------------------------rasterizer_sl_clip //------------------------------------------------------rasterizer_sl_clip
template<class Conv> template<class Conv> class rasterizer_sl_clip
class rasterizer_sl_clip
{ {
public: public:
typedef Conv conv_type; typedef Conv conv_type;
@ -94,16 +111,19 @@ class rasterizer_sl_clip
typedef rect_base<coord_type> rect_type; typedef rect_base<coord_type> rect_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rasterizer_sl_clip() rasterizer_sl_clip() :
: m_clip_box(0, 0, 0, 0) m_clip_box(0,0,0,0),
, m_x1(0) m_x1(0),
, m_y1(0) m_y1(0),
, m_f1(0) m_f1(0),
, m_clipping(false) m_clipping(false)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_clipping() { m_clipping = false; } void reset_clipping()
{
m_clipping = false;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void clip_box(coord_type x1, coord_type y1, coord_type x2, coord_type y2) void clip_box(coord_type x1, coord_type y1, coord_type x2, coord_type y2)
@ -118,16 +138,16 @@ class rasterizer_sl_clip
{ {
m_x1 = x1; m_x1 = x1;
m_y1 = y1; m_y1 = y1;
if (m_clipping) if(m_clipping) m_f1 = clipping_flags(x1, y1, m_clip_box);
m_f1 = clipping_flags(x1, y1, m_clip_box);
} }
private: private:
//------------------------------------------------------------------------ //------------------------------------------------------------------------
template<class Rasterizer> template<class Rasterizer>
AGG_INLINE void AGG_INLINE void line_clip_y(Rasterizer& ras,
line_clip_y(Rasterizer& ras, coord_type x1, coord_type y1, coord_type x2, coord_type y2, unsigned f1, unsigned f2) coord_type x1, coord_type y1,
const coord_type x2, coord_type y2,
unsigned f1, unsigned f2) const
{ {
f1 &= 10; f1 &= 10;
f2 &= 10; f2 &= 10;
@ -172,10 +192,12 @@ class rasterizer_sl_clip
tx2 = x1 + Conv::mul_div(m_clip_box.y2-y1, x2-x1, y2-y1); tx2 = x1 + Conv::mul_div(m_clip_box.y2-y1, x2-x1, y2-y1);
ty2 = m_clip_box.y2; ty2 = m_clip_box.y2;
} }
ras.line(Conv::xi(tx1), Conv::yi(ty1), Conv::xi(tx2), Conv::yi(ty2)); ras.line(Conv::xi(tx1), Conv::yi(ty1),
Conv::xi(tx2), Conv::yi(ty2));
} }
} }
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Rasterizer> template<class Rasterizer>
@ -266,12 +288,14 @@ class rasterizer_sl_clip
} }
else else
{ {
ras.line(Conv::xi(m_x1), Conv::yi(m_y1), Conv::xi(x2), Conv::yi(y2)); ras.line(Conv::xi(m_x1), Conv::yi(m_y1),
Conv::xi(x2), Conv::yi(y2));
} }
m_x1 = x2; m_x1 = x2;
m_y1 = y2; m_y1 = y2;
} }
private: private:
rect_type m_clip_box; rect_type m_clip_box;
coord_type m_x1; coord_type m_x1;
@ -280,6 +304,9 @@ class rasterizer_sl_clip
bool m_clipping; bool m_clipping;
}; };
//---------------------------------------------------rasterizer_sl_no_clip //---------------------------------------------------rasterizer_sl_no_clip
class rasterizer_sl_no_clip class rasterizer_sl_no_clip
{ {
@ -287,18 +314,11 @@ class rasterizer_sl_no_clip
typedef ras_conv_int conv_type; typedef ras_conv_int conv_type;
typedef int coord_type; typedef int coord_type;
rasterizer_sl_no_clip() rasterizer_sl_no_clip() : m_x1(0), m_y1(0) {}
: m_x1(0)
, m_y1(0)
{}
void reset_clipping() {} void reset_clipping() {}
void clip_box(coord_type /*x1*/, coord_type /*y1*/, coord_type /*x2*/, coord_type /*y2*/) {} void clip_box(coord_type /*x1*/, coord_type /*y1*/, coord_type /*x2*/, coord_type /*y2*/) {}
void move_to(coord_type x1, coord_type y1) void move_to(coord_type x1, coord_type y1) { m_x1 = x1; m_y1 = y1; }
{
m_x1 = x1;
m_y1 = y1;
}
template<class Rasterizer> template<class Rasterizer>
void line_to(Rasterizer& ras, coord_type x2, coord_type y2) void line_to(Rasterizer& ras, coord_type x2, coord_type y2)
@ -312,6 +332,7 @@ class rasterizer_sl_no_clip
int m_x1, m_y1; int m_x1, m_y1;
}; };
// -----rasterizer_sl_clip_int // -----rasterizer_sl_clip_int
// -----rasterizer_sl_clip_int_sat // -----rasterizer_sl_clip_int_sat
// -----rasterizer_sl_clip_int_3x // -----rasterizer_sl_clip_int_3x
@ -324,6 +345,7 @@ typedef rasterizer_sl_clip<ras_conv_int_3x> rasterizer_sl_clip_int_3x;
typedef rasterizer_sl_clip<ras_conv_dbl> rasterizer_sl_clip_dbl; typedef rasterizer_sl_clip<ras_conv_dbl> rasterizer_sl_clip_dbl;
typedef rasterizer_sl_clip<ras_conv_dbl_3x> rasterizer_sl_clip_dbl_3x; typedef rasterizer_sl_clip<ras_conv_dbl_3x> rasterizer_sl_clip_dbl_3x;
} // namespace agg
}
#endif #endif

View file

@ -23,11 +23,11 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_rendering_buffer.h" #include "agg_rendering_buffer.h"
namespace agg { namespace agg
{
//-----------------------------------------------------------renderer_base //-----------------------------------------------------------renderer_base
template<class PixelFormat> template<class PixelFormat> class renderer_base
class renderer_base
{ {
public: public:
typedef PixelFormat pixfmt_type; typedef PixelFormat pixfmt_type;
@ -36,13 +36,10 @@ class renderer_base
typedef typename pixfmt_type::row_data row_data; typedef typename pixfmt_type::row_data row_data;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
renderer_base() renderer_base() : m_ren(0), m_clip_box(1, 1, 0, 0) {}
: m_ren(0) explicit renderer_base(pixfmt_type& ren) :
, m_clip_box(1, 1, 0, 0) m_ren(&ren),
{} m_clip_box(0, 0, ren.width() - 1, ren.height() - 1)
explicit renderer_base(pixfmt_type& ren)
: m_ren(&ren)
, m_clip_box(0, 0, ren.width() - 1, ren.height() - 1)
{} {}
void attach(pixfmt_type& ren) void attach(pixfmt_type& ren)
{ {
@ -106,7 +103,8 @@ class renderer_base
//-------------------------------------------------------------------- //--------------------------------------------------------------------
bool inbox(int x, int y) const bool inbox(int x, int y) const
{ {
return x >= m_clip_box.x1 && y >= m_clip_box.y1 && x <= m_clip_box.x2 && y <= m_clip_box.y2; return x >= m_clip_box.x1 && y >= m_clip_box.y1 &&
x <= m_clip_box.x2 && y <= m_clip_box.y2;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -136,6 +134,7 @@ class renderer_base
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_pixel(int x, int y, const color_type& c) void copy_pixel(int x, int y, const color_type& c)
{ {
@ -155,30 +154,24 @@ class renderer_base
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
color_type pixel(int x, int y) const { return inbox(x, y) ? m_ren->pixel(x, y) : color_type::no_color(); } color_type pixel(int x, int y) const
{
return inbox(x, y) ?
m_ren->pixel(x, y) :
color_type::no_color();
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_hline(int x1, int y, int x2, const color_type& c) void copy_hline(int x1, int y, int x2, const color_type& c)
{ {
if (x1 > x2) if(x1 > x2) { int t = x2; x2 = x1; x1 = t; }
{ if(y > ymax()) return;
int t = x2; if(y < ymin()) return;
x2 = x1; if(x1 > xmax()) return;
x1 = t; if(x2 < xmin()) return;
}
if (y > ymax())
return;
if (y < ymin())
return;
if (x1 > xmax())
return;
if (x2 < xmin())
return;
if (x1 < xmin()) if(x1 < xmin()) x1 = xmin();
x1 = xmin(); if(x2 > xmax()) x2 = xmax();
if (x2 > xmax())
x2 = xmax();
m_ren->copy_hline(x1, y, x2 - x1 + 1, c); m_ren->copy_hline(x1, y, x2 - x1 + 1, c);
} }
@ -186,81 +179,51 @@ class renderer_base
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_vline(int x, int y1, int y2, const color_type& c) void copy_vline(int x, int y1, int y2, const color_type& c)
{ {
if (y1 > y2) if(y1 > y2) { int t = y2; y2 = y1; y1 = t; }
{ if(x > xmax()) return;
int t = y2; if(x < xmin()) return;
y2 = y1; if(y1 > ymax()) return;
y1 = t; if(y2 < ymin()) return;
}
if (x > xmax())
return;
if (x < xmin())
return;
if (y1 > ymax())
return;
if (y2 < ymin())
return;
if (y1 < ymin()) if(y1 < ymin()) y1 = ymin();
y1 = ymin(); if(y2 > ymax()) y2 = ymax();
if (y2 > ymax())
y2 = ymax();
m_ren->copy_vline(x, y1, y2 - y1 + 1, c); m_ren->copy_vline(x, y1, y2 - y1 + 1, c);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_hline(int x1, int y, int x2, const color_type& c, cover_type cover) void blend_hline(int x1, int y, int x2,
const color_type& c, cover_type cover)
{ {
if (x1 > x2) if(x1 > x2) { int t = x2; x2 = x1; x1 = t; }
{ if(y > ymax()) return;
int t = x2; if(y < ymin()) return;
x2 = x1; if(x1 > xmax()) return;
x1 = t; if(x2 < xmin()) return;
}
if (y > ymax())
return;
if (y < ymin())
return;
if (x1 > xmax())
return;
if (x2 < xmin())
return;
if (x1 < xmin()) if(x1 < xmin()) x1 = xmin();
x1 = xmin(); if(x2 > xmax()) x2 = xmax();
if (x2 > xmax())
x2 = xmax();
m_ren->blend_hline(x1, y, x2 - x1 + 1, c, cover); m_ren->blend_hline(x1, y, x2 - x1 + 1, c, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_vline(int x, int y1, int y2, const color_type& c, cover_type cover) void blend_vline(int x, int y1, int y2,
const color_type& c, cover_type cover)
{ {
if (y1 > y2) if(y1 > y2) { int t = y2; y2 = y1; y1 = t; }
{ if(x > xmax()) return;
int t = y2; if(x < xmin()) return;
y2 = y1; if(y1 > ymax()) return;
y1 = t; if(y2 < ymin()) return;
}
if (x > xmax())
return;
if (x < xmin())
return;
if (y1 > ymax())
return;
if (y2 < ymin())
return;
if (y1 < ymin()) if(y1 < ymin()) y1 = ymin();
y1 = ymin(); if(y2 > ymax()) y2 = ymax();
if (y2 > ymax())
y2 = ymax();
m_ren->blend_vline(x, y1, y2 - y1 + 1, c, cover); m_ren->blend_vline(x, y1, y2 - y1 + 1, c, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_bar(int x1, int y1, int x2, int y2, const color_type& c) void copy_bar(int x1, int y1, int x2, int y2, const color_type& c)
{ {
@ -277,7 +240,8 @@ class renderer_base
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_bar(int x1, int y1, int x2, int y2, const color_type& c, cover_type cover) void blend_bar(int x1, int y1, int x2, int y2,
const color_type& c, cover_type cover)
{ {
rect_i rc(x1, y1, x2, y2); rect_i rc(x1, y1, x2, y2);
rc.normalize(); rc.normalize();
@ -286,209 +250,183 @@ class renderer_base
int y; int y;
for(y = rc.y1; y <= rc.y2; y++) for(y = rc.y1; y <= rc.y2; y++)
{ {
m_ren->blend_hline(rc.x1, y, unsigned(rc.x2 - rc.x1 + 1), c, cover); m_ren->blend_hline(rc.x1,
y,
unsigned(rc.x2 - rc.x1 + 1),
c,
cover);
} }
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_hspan(int x, int y, int len, const color_type& c, const cover_type* covers) void blend_solid_hspan(int x, int y, int len,
const color_type& c,
const cover_type* covers)
{ {
if (y > ymax()) if(y > ymax()) return;
return; if(y < ymin()) return;
if (y < ymin())
return;
if(x < xmin()) if(x < xmin())
{ {
len -= xmin() - x; len -= xmin() - x;
if (len <= 0) if(len <= 0) return;
return;
covers += xmin() - x; covers += xmin() - x;
x = xmin(); x = xmin();
} }
if(x + len > xmax()) if(x + len > xmax())
{ {
len = xmax() - x + 1; len = xmax() - x + 1;
if (len <= 0) if(len <= 0) return;
return;
} }
m_ren->blend_solid_hspan(x, y, len, c, covers); m_ren->blend_solid_hspan(x, y, len, c, covers);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_vspan(int x, int y, int len, const color_type& c, const cover_type* covers) void blend_solid_vspan(int x, int y, int len,
const color_type& c,
const cover_type* covers)
{ {
if (x > xmax()) if(x > xmax()) return;
return; if(x < xmin()) return;
if (x < xmin())
return;
if(y < ymin()) if(y < ymin())
{ {
len -= ymin() - y; len -= ymin() - y;
if (len <= 0) if(len <= 0) return;
return;
covers += ymin() - y; covers += ymin() - y;
y = ymin(); y = ymin();
} }
if(y + len > ymax()) if(y + len > ymax())
{ {
len = ymax() - y + 1; len = ymax() - y + 1;
if (len <= 0) if(len <= 0) return;
return;
} }
m_ren->blend_solid_vspan(x, y, len, c, covers); m_ren->blend_solid_vspan(x, y, len, c, covers);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_hspan(int x, int y, int len, const color_type* colors) void copy_color_hspan(int x, int y, int len, const color_type* colors)
{ {
if (y > ymax()) if(y > ymax()) return;
return; if(y < ymin()) return;
if (y < ymin())
return;
if(x < xmin()) if(x < xmin())
{ {
int d = xmin() - x; int d = xmin() - x;
len -= d; len -= d;
if (len <= 0) if(len <= 0) return;
return;
colors += d; colors += d;
x = xmin(); x = xmin();
} }
if(x + len > xmax()) if(x + len > xmax())
{ {
len = xmax() - x + 1; len = xmax() - x + 1;
if (len <= 0) if(len <= 0) return;
return;
} }
m_ren->copy_color_hspan(x, y, len, colors); m_ren->copy_color_hspan(x, y, len, colors);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_vspan(int x, int y, int len, const color_type* colors) void copy_color_vspan(int x, int y, int len, const color_type* colors)
{ {
if (x > xmax()) if(x > xmax()) return;
return; if(x < xmin()) return;
if (x < xmin())
return;
if(y < ymin()) if(y < ymin())
{ {
int d = ymin() - y; int d = ymin() - y;
len -= d; len -= d;
if (len <= 0) if(len <= 0) return;
return;
colors += d; colors += d;
y = ymin(); y = ymin();
} }
if(y + len > ymax()) if(y + len > ymax())
{ {
len = ymax() - y + 1; len = ymax() - y + 1;
if (len <= 0) if(len <= 0) return;
return;
} }
m_ren->copy_color_vspan(x, y, len, colors); m_ren->copy_color_vspan(x, y, len, colors);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_hspan(int x, void blend_color_hspan(int x, int y, int len,
int y,
int len,
const color_type* colors, const color_type* colors,
const cover_type* covers, const cover_type* covers,
cover_type cover = agg::cover_full) cover_type cover = agg::cover_full)
{ {
if (y > ymax()) if(y > ymax()) return;
return; if(y < ymin()) return;
if (y < ymin())
return;
if(x < xmin()) if(x < xmin())
{ {
int d = xmin() - x; int d = xmin() - x;
len -= d; len -= d;
if (len <= 0) if(len <= 0) return;
return; if(covers) covers += d;
if (covers)
covers += d;
colors += d; colors += d;
x = xmin(); x = xmin();
} }
if(x + len > xmax()) if(x + len > xmax())
{ {
len = xmax() - x + 1; len = xmax() - x + 1;
if (len <= 0) if(len <= 0) return;
return;
} }
m_ren->blend_color_hspan(x, y, len, colors, covers, cover); m_ren->blend_color_hspan(x, y, len, colors, covers, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_hspan_alpha(int x, void blend_color_hspan_alpha(int x, int y, int len,
int y,
int len,
const color_type* colors, const color_type* colors,
value_type alpha, value_type alpha,
const cover_type* covers, const cover_type* covers,
cover_type cover = agg::cover_full) cover_type cover = agg::cover_full)
{ {
if (y > ymax()) if(y > ymax()) return;
return; if(y < ymin()) return;
if (y < ymin())
return;
if(x < xmin()) if(x < xmin())
{ {
int d = xmin() - x; int d = xmin() - x;
len -= d; len -= d;
if (len <= 0) if(len <= 0) return;
return; if(covers) covers += d;
if (covers)
covers += d;
colors += d; colors += d;
x = xmin(); x = xmin();
} }
if(x + len > xmax()) if(x + len > xmax())
{ {
len = xmax() - x + 1; len = xmax() - x + 1;
if (len <= 0) if(len <= 0) return;
return;
} }
m_ren->blend_color_hspan_alpha(x, y, len, colors, alpha, covers, cover); m_ren->blend_color_hspan_alpha(x, y, len, colors, alpha, covers, cover);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_vspan(int x, void blend_color_vspan(int x, int y, int len,
int y,
int len,
const color_type* colors, const color_type* colors,
const cover_type* covers, const cover_type* covers,
cover_type cover = agg::cover_full) cover_type cover = agg::cover_full)
{ {
if (x > xmax()) if(x > xmax()) return;
return; if(x < xmin()) return;
if (x < xmin())
return;
if(y < ymin()) if(y < ymin())
{ {
int d = ymin() - y; int d = ymin() - y;
len -= d; len -= d;
if (len <= 0) if(len <= 0) return;
return; if(covers) covers += d;
if (covers)
covers += d;
colors += d; colors += d;
y = ymin(); y = ymin();
} }
if(y + len > ymax()) if(y + len > ymax())
{ {
len = ymax() - y + 1; len = ymax() - y + 1;
if (len <= 0) if(len <= 0) return;
return;
} }
m_ren->blend_color_vspan(x, y, len, colors, covers, cover); m_ren->blend_color_vspan(x, y, len, colors, covers, cover);
} }
@ -512,10 +450,8 @@ class renderer_base
src.y1 = 0; src.y1 = 0;
} }
if (src.x2 > wsrc) if(src.x2 > wsrc) src.x2 = wsrc;
src.x2 = wsrc; if(src.y2 > hsrc) src.y2 = hsrc;
if (src.y2 > hsrc)
src.y2 = hsrc;
if(dst.x1 < cb.x1) if(dst.x1 < cb.x1)
{ {
@ -528,24 +464,23 @@ class renderer_base
dst.y1 = cb.y1; dst.y1 = cb.y1;
} }
if (dst.x2 > cb.x2) if(dst.x2 > cb.x2) dst.x2 = cb.x2;
dst.x2 = cb.x2; if(dst.y2 > cb.y2) dst.y2 = cb.y2;
if (dst.y2 > cb.y2)
dst.y2 = cb.y2;
rc.x2 = dst.x2 - dst.x1; rc.x2 = dst.x2 - dst.x1;
rc.y2 = dst.y2 - dst.y1; rc.y2 = dst.y2 - dst.y1;
if (rc.x2 > src.x2 - src.x1) if(rc.x2 > src.x2 - src.x1) rc.x2 = src.x2 - src.x1;
rc.x2 = src.x2 - src.x1; if(rc.y2 > src.y2 - src.y1) rc.y2 = src.y2 - src.y1;
if (rc.y2 > src.y2 - src.y1)
rc.y2 = src.y2 - src.y1;
return rc; return rc;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class RenBuf> template<class RenBuf>
void copy_from(const RenBuf& src, const rect_i* rect_src_ptr = 0, int dx = 0, int dy = 0) void copy_from(const RenBuf& src,
const rect_i* rect_src_ptr = 0,
int dx = 0,
int dy = 0)
{ {
rect_i rsrc(0, 0, src.width(), src.height()); rect_i rsrc(0, 0, src.width(), src.height());
if(rect_src_ptr) if(rect_src_ptr)
@ -575,7 +510,10 @@ class renderer_base
} }
while(rc.y2 > 0) while(rc.y2 > 0)
{ {
m_ren->copy_from(src, rdst.x1, rdst.y1, rsrc.x1, rsrc.y1, rc.x2); m_ren->copy_from(src,
rdst.x1, rdst.y1,
rsrc.x1, rsrc.y1,
rc.x2);
rdst.y1 += incy; rdst.y1 += incy;
rsrc.y1 += incy; rsrc.y1 += incy;
--rc.y2; --rc.y2;
@ -638,7 +576,11 @@ class renderer_base
} }
if(len > 0) if(len > 0)
{ {
m_ren->blend_from(src, x1dst, rdst.y1, x1src, rsrc.y1, len, cover); m_ren->blend_from(src,
x1dst, rdst.y1,
x1src, rsrc.y1,
len,
cover);
} }
} }
} }
@ -705,7 +647,12 @@ class renderer_base
} }
if(len > 0) if(len > 0)
{ {
m_ren->blend_from_color(src, color, x1dst, rdst.y1, x1src, rsrc.y1, len, cover); m_ren->blend_from_color(src,
color,
x1dst, rdst.y1,
x1src, rsrc.y1,
len,
cover);
} }
} }
} }
@ -772,7 +719,12 @@ class renderer_base
} }
if(len > 0) if(len > 0)
{ {
m_ren->blend_from_lut(src, color_lut, x1dst, rdst.y1, x1src, rsrc.y1, len, cover); m_ren->blend_from_lut(src,
color_lut,
x1dst, rdst.y1,
x1src, rsrc.y1,
len,
cover);
} }
} }
} }
@ -788,6 +740,7 @@ class renderer_base
rect_i m_clip_box; rect_i m_clip_box;
}; };
} // namespace agg
}
#endif #endif

File diff suppressed because it is too large Load diff

View file

@ -24,11 +24,11 @@
#include "agg_array.h" #include "agg_array.h"
#include "agg_renderer_base.h" #include "agg_renderer_base.h"
namespace agg { namespace agg
{
//----------------------------------------------------------renderer_mclip //----------------------------------------------------------renderer_mclip
template<class PixelFormat> template<class PixelFormat> class renderer_mclip
class renderer_mclip
{ {
public: public:
typedef PixelFormat pixfmt_type; typedef PixelFormat pixfmt_type;
@ -37,10 +37,10 @@ class renderer_mclip
typedef renderer_base<pixfmt_type> base_ren_type; typedef renderer_base<pixfmt_type> base_ren_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
explicit renderer_mclip(pixfmt_type& pixf) explicit renderer_mclip(pixfmt_type& pixf) :
: m_ren(pixf) m_ren(pixf),
, m_curr_cb(0) m_curr_cb(0),
, m_bounds(m_ren.xmin(), m_ren.ymin(), m_ren.xmax(), m_ren.ymax()) m_bounds(m_ren.xmin(), m_ren.ymin(), m_ren.xmax(), m_ren.ymax())
{} {}
void attach(pixfmt_type& pixf) void attach(pixfmt_type& pixf)
{ {
@ -110,19 +110,18 @@ class renderer_mclip
if(cb.clip(rect_i(0, 0, width() - 1, height() - 1))) if(cb.clip(rect_i(0, 0, width() - 1, height() - 1)))
{ {
m_clip.add(cb); m_clip.add(cb);
if (cb.x1 < m_bounds.x1) if(cb.x1 < m_bounds.x1) m_bounds.x1 = cb.x1;
m_bounds.x1 = cb.x1; if(cb.y1 < m_bounds.y1) m_bounds.y1 = cb.y1;
if (cb.y1 < m_bounds.y1) if(cb.x2 > m_bounds.x2) m_bounds.x2 = cb.x2;
m_bounds.y1 = cb.y1; if(cb.y2 > m_bounds.y2) m_bounds.y2 = cb.y2;
if (cb.x2 > m_bounds.x2)
m_bounds.x2 = cb.x2;
if (cb.y2 > m_bounds.y2)
m_bounds.y2 = cb.y2;
} }
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void clear(const color_type& c) { m_ren.clear(c); } void clear(const color_type& c)
{
m_ren.clear(c);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_pixel(int x, int y, const color_type& c) void copy_pixel(int x, int y, const color_type& c)
@ -135,7 +134,8 @@ class renderer_mclip
m_ren.ren().copy_pixel(x, y, c); m_ren.ren().copy_pixel(x, y, c);
break; break;
} }
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -149,7 +149,8 @@ class renderer_mclip
m_ren.ren().blend_pixel(x, y, c, cover); m_ren.ren().blend_pixel(x, y, c, cover);
break; break;
} }
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -162,7 +163,8 @@ class renderer_mclip
{ {
return m_ren.ren().pixel(x, y); return m_ren.ren().pixel(x, y);
} }
} while (next_clip_box()); }
while(next_clip_box());
return color_type::no_color(); return color_type::no_color();
} }
@ -173,7 +175,8 @@ class renderer_mclip
do do
{ {
m_ren.copy_hline(x1, y, x2, c); m_ren.copy_hline(x1, y, x2, c);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -183,27 +186,32 @@ class renderer_mclip
do do
{ {
m_ren.copy_vline(x, y1, y2, c); m_ren.copy_vline(x, y1, y2, c);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_hline(int x1, int y, int x2, const color_type& c, cover_type cover) void blend_hline(int x1, int y, int x2,
const color_type& c, cover_type cover)
{ {
first_clip_box(); first_clip_box();
do do
{ {
m_ren.blend_hline(x1, y, x2, c, cover); m_ren.blend_hline(x1, y, x2, c, cover);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_vline(int x, int y1, int y2, const color_type& c, cover_type cover) void blend_vline(int x, int y1, int y2,
const color_type& c, cover_type cover)
{ {
first_clip_box(); first_clip_box();
do do
{ {
m_ren.blend_vline(x, y1, y2, c, cover); m_ren.blend_vline(x, y1, y2, c, cover);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -213,38 +221,46 @@ class renderer_mclip
do do
{ {
m_ren.copy_bar(x1, y1, x2, y2, c); m_ren.copy_bar(x1, y1, x2, y2, c);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_bar(int x1, int y1, int x2, int y2, const color_type& c, cover_type cover) void blend_bar(int x1, int y1, int x2, int y2,
const color_type& c, cover_type cover)
{ {
first_clip_box(); first_clip_box();
do do
{ {
m_ren.blend_bar(x1, y1, x2, y2, c, cover); m_ren.blend_bar(x1, y1, x2, y2, c, cover);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_hspan(int x, int y, int len, const color_type& c, const cover_type* covers) void blend_solid_hspan(int x, int y, int len,
const color_type& c, const cover_type* covers)
{ {
first_clip_box(); first_clip_box();
do do
{ {
m_ren.blend_solid_hspan(x, y, len, c, covers); m_ren.blend_solid_hspan(x, y, len, c, covers);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_solid_vspan(int x, int y, int len, const color_type& c, const cover_type* covers) void blend_solid_vspan(int x, int y, int len,
const color_type& c, const cover_type* covers)
{ {
first_clip_box(); first_clip_box();
do do
{ {
m_ren.blend_solid_vspan(x, y, len, c, covers); m_ren.blend_solid_vspan(x, y, len, c, covers);
} while (next_clip_box());
} }
while(next_clip_box());
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_color_hspan(int x, int y, int len, const color_type* colors) void copy_color_hspan(int x, int y, int len, const color_type* colors)
@ -253,13 +269,12 @@ class renderer_mclip
do do
{ {
m_ren.copy_color_hspan(x, y, len, colors); m_ren.copy_color_hspan(x, y, len, colors);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_hspan(int x, void blend_color_hspan(int x, int y, int len,
int y,
int len,
const color_type* colors, const color_type* colors,
const cover_type* covers, const cover_type* covers,
cover_type cover = cover_full) cover_type cover = cover_full)
@ -268,13 +283,12 @@ class renderer_mclip
do do
{ {
m_ren.blend_color_hspan(x, y, len, colors, covers, cover); m_ren.blend_color_hspan(x, y, len, colors, covers, cover);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void blend_color_vspan(int x, void blend_color_vspan(int x, int y, int len,
int y,
int len,
const color_type* colors, const color_type* colors,
const cover_type* covers, const cover_type* covers,
cover_type cover = cover_full) cover_type cover = cover_full)
@ -283,17 +297,22 @@ class renderer_mclip
do do
{ {
m_ren.blend_color_vspan(x, y, len, colors, covers, cover); m_ren.blend_color_vspan(x, y, len, colors, covers, cover);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void copy_from(const rendering_buffer& from, const rect_i* rc = 0, int x_to = 0, int y_to = 0) void copy_from(const rendering_buffer& from,
const rect_i* rc=0,
int x_to=0,
int y_to=0)
{ {
first_clip_box(); first_clip_box();
do do
{ {
m_ren.copy_from(from, rc, x_to, y_to); m_ren.copy_from(from, rc, x_to, y_to);
} while (next_clip_box()); }
while(next_clip_box());
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -308,12 +327,15 @@ class renderer_mclip
do do
{ {
m_ren.blend_from(src, rect_src_ptr, dx, dy, cover); m_ren.blend_from(src, rect_src_ptr, dx, dy, cover);
} while (next_clip_box());
} }
while(next_clip_box());
}
private: private:
renderer_mclip(const renderer_mclip<PixelFormat>&); renderer_mclip(const renderer_mclip<PixelFormat>&);
const renderer_mclip<PixelFormat>& operator=(const renderer_mclip<PixelFormat>&); const renderer_mclip<PixelFormat>&
operator = (const renderer_mclip<PixelFormat>&);
base_ren_type m_ren; base_ren_type m_ren;
pod_bvector<rect_i, 4> m_clip; pod_bvector<rect_i, 4> m_clip;
@ -321,6 +343,7 @@ class renderer_mclip
rect_i m_bounds; rect_i m_bounds;
}; };
} // namespace agg
}
#endif #endif

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@ -22,19 +22,21 @@
#include "agg_rendering_buffer.h" #include "agg_rendering_buffer.h"
#include "agg_clip_liang_barsky.h" #include "agg_clip_liang_barsky.h"
namespace agg {
namespace agg
{
//========================================================line_image_scale //========================================================line_image_scale
template<class Source> template<class Source> class line_image_scale
class line_image_scale
{ {
public: public:
typedef typename Source::color_type color_type; typedef typename Source::color_type color_type;
line_image_scale(const Source& src, double height) line_image_scale(const Source& src, double height) :
: m_source(src) m_source(src),
, m_height(height) m_height(height),
, m_scale(src.height() / height) m_scale(src.height() / height)
{} {
}
double width() const { return m_source.width(); } double width() const { return m_source.width(); }
double height() const { return m_height; } double height() const { return m_height; }
@ -59,48 +61,49 @@ class line_image_scale
double m_scale; double m_scale;
}; };
//======================================================line_image_pattern //======================================================line_image_pattern
template<class Filter> template<class Filter> class line_image_pattern
class line_image_pattern
{ {
public: public:
typedef Filter filter_type; typedef Filter filter_type;
typedef typename filter_type::color_type color_type; typedef typename filter_type::color_type color_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
line_image_pattern(const Filter& filter) line_image_pattern(const Filter& filter) :
: m_filter(&filter) m_filter(&filter),
, m_dilation(filter.dilation() + 1) m_dilation(filter.dilation() + 1),
, m_dilation_hr(m_dilation * line_subpixel_scale) m_dilation_hr(m_dilation * line_subpixel_scale),
, m_data() m_data(),
, m_width(0) m_width(0),
, m_height(0) m_height(0),
, m_width_hr(0) m_width_hr(0),
, m_half_height_hr(0) m_half_height_hr(0),
, m_offset_y_hr(0) m_offset_y_hr(0)
{} {
}
// Create // Create
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Source> template<class Source>
line_image_pattern(const Filter& filter, const Source& src) line_image_pattern(const Filter& filter, const Source& src) :
: m_filter(&filter) m_filter(&filter),
, m_dilation(filter.dilation() + 1) m_dilation(filter.dilation() + 1),
, m_dilation_hr(m_dilation * line_subpixel_scale) m_dilation_hr(m_dilation * line_subpixel_scale),
, m_data() m_data(),
, m_width(0) m_width(0),
, m_height(0) m_height(0),
, m_width_hr(0) m_width_hr(0),
, m_half_height_hr(0) m_half_height_hr(0),
, m_offset_y_hr(0) m_offset_y_hr(0)
{ {
create(src); create(src);
} }
// Create // Create
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Source> template<class Source> void create(const Source& src)
void create(const Source& src)
{ {
m_height = uceil(src.height()); m_height = uceil(src.height());
m_width = uceil(src.width()); m_width = uceil(src.width());
@ -111,7 +114,9 @@ class line_image_pattern
m_data.resize((m_width + m_dilation * 2) * (m_height + m_dilation * 2)); m_data.resize((m_width + m_dilation * 2) * (m_height + m_dilation * 2));
m_buf.attach(&m_data[0], m_width + m_dilation * 2, m_height + m_dilation * 2, m_width + m_dilation * 2); m_buf.attach(&m_data[0], m_width + m_dilation * 2,
m_height + m_dilation * 2,
m_width + m_dilation * 2);
unsigned x, y; unsigned x, y;
color_type* d1; color_type* d1;
color_type* d2; color_type* d2;
@ -165,7 +170,10 @@ class line_image_pattern
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void pixel(color_type* p, int x, int y) const void pixel(color_type* p, int x, int y) const
{ {
m_filter->pixel_high_res(m_buf.rows(), p, x % m_width_hr + m_dilation_hr, y + m_offset_y_hr); m_filter->pixel_high_res(m_buf.rows(),
p,
x % m_width_hr + m_dilation_hr,
y + m_offset_y_hr);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -173,7 +181,8 @@ class line_image_pattern
private: private:
line_image_pattern(const line_image_pattern<filter_type>&); line_image_pattern(const line_image_pattern<filter_type>&);
const line_image_pattern<filter_type>& operator=(const line_image_pattern<filter_type>&); const line_image_pattern<filter_type>&
operator = (const line_image_pattern<filter_type>&);
protected: protected:
row_ptr_cache<color_type> m_buf; row_ptr_cache<color_type> m_buf;
@ -188,9 +197,14 @@ class line_image_pattern
int m_offset_y_hr; int m_offset_y_hr;
}; };
//=================================================line_image_pattern_pow2 //=================================================line_image_pattern_pow2
template<class Filter> template<class Filter> class line_image_pattern_pow2 :
class line_image_pattern_pow2 : public line_image_pattern<Filter> public line_image_pattern<Filter>
{ {
public: public:
typedef Filter filter_type; typedef Filter filter_type;
@ -198,23 +212,19 @@ class line_image_pattern_pow2 : public line_image_pattern<Filter>
typedef line_image_pattern<Filter> base_type; typedef line_image_pattern<Filter> base_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
line_image_pattern_pow2(const Filter& filter) line_image_pattern_pow2(const Filter& filter) :
: line_image_pattern<Filter>(filter) line_image_pattern<Filter>(filter), m_mask(line_subpixel_mask) {}
, m_mask(line_subpixel_mask)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Source> template<class Source>
line_image_pattern_pow2(const Filter& filter, const Source& src) line_image_pattern_pow2(const Filter& filter, const Source& src) :
: line_image_pattern<Filter>(filter) line_image_pattern<Filter>(filter), m_mask(line_subpixel_mask)
, m_mask(line_subpixel_mask)
{ {
create(src); create(src);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Source> template<class Source> void create(const Source& src)
void create(const Source& src)
{ {
line_image_pattern<Filter>::create(src); line_image_pattern<Filter>::create(src);
m_mask = 1; m_mask = 1;
@ -231,53 +241,47 @@ class line_image_pattern_pow2 : public line_image_pattern<Filter>
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void pixel(color_type* p, int x, int y) const void pixel(color_type* p, int x, int y) const
{ {
base_type::m_filter->pixel_high_res(base_type::m_buf.rows(), base_type::m_filter->pixel_high_res(
base_type::m_buf.rows(),
p, p,
(x & m_mask) + base_type::m_dilation_hr, (x & m_mask) + base_type::m_dilation_hr,
y + base_type::m_offset_y_hr); y + base_type::m_offset_y_hr);
} }
private: private:
unsigned m_mask; unsigned m_mask;
}; };
//===================================================distance_interpolator4 //===================================================distance_interpolator4
class distance_interpolator4 class distance_interpolator4
{ {
public: public:
//--------------------------------------------------------------------- //---------------------------------------------------------------------
distance_interpolator4() {} distance_interpolator4() {}
distance_interpolator4(int x1, distance_interpolator4(int x1, int y1, int x2, int y2,
int y1, int sx, int sy, int ex, int ey,
int x2, int len, double scale, int x, int y) :
int y2, m_dx(x2 - x1),
int sx, m_dy(y2 - y1),
int sy, m_dx_start(line_mr(sx) - line_mr(x1)),
int ex, m_dy_start(line_mr(sy) - line_mr(y1)),
int ey, m_dx_end(line_mr(ex) - line_mr(x2)),
int len, m_dy_end(line_mr(ey) - line_mr(y2)),
double scale,
int x,
int y)
: m_dx(x2 - x1)
, m_dy(y2 - y1)
, m_dx_start(line_mr(sx) - line_mr(x1))
, m_dy_start(line_mr(sy) - line_mr(y1))
, m_dx_end(line_mr(ex) - line_mr(x2))
, m_dy_end(line_mr(ey) - line_mr(y2))
,
m_dist(iround(double(x + line_subpixel_scale/2 - x2) * double(m_dy) - m_dist(iround(double(x + line_subpixel_scale/2 - x2) * double(m_dy) -
double(y + line_subpixel_scale / 2 - y2) * double(m_dx))) double(y + line_subpixel_scale/2 - y2) * double(m_dx))),
,
m_dist_start((line_mr(x + line_subpixel_scale/2) - line_mr(sx)) * m_dy_start - m_dist_start((line_mr(x + line_subpixel_scale/2) - line_mr(sx)) * m_dy_start -
(line_mr(y + line_subpixel_scale / 2) - line_mr(sy)) * m_dx_start) (line_mr(y + line_subpixel_scale/2) - line_mr(sy)) * m_dx_start),
,
m_dist_end((line_mr(x + line_subpixel_scale/2) - line_mr(ex)) * m_dy_end - m_dist_end((line_mr(x + line_subpixel_scale/2) - line_mr(ex)) * m_dy_end -
(line_mr(y + line_subpixel_scale / 2) - line_mr(ey)) * m_dx_end) (line_mr(y + line_subpixel_scale/2) - line_mr(ey)) * m_dx_end),
, m_len(uround(len / scale)) m_len(uround(len / scale))
{ {
double d = len * scale; double d = len * scale;
int dx = iround(((x2 - x1) * line_subpixel_scale) / d); int dx = iround(((x2 - x1) * line_subpixel_scale) / d);
@ -459,57 +463,50 @@ class distance_interpolator4
int m_len; int m_len;
}; };
//==================================================line_interpolator_image //==================================================line_interpolator_image
template<class Renderer> template<class Renderer> class line_interpolator_image
class line_interpolator_image
{ {
public: public:
typedef Renderer renderer_type; typedef Renderer renderer_type;
typedef typename Renderer::color_type color_type; typedef typename Renderer::color_type color_type;
//--------------------------------------------------------------------- //---------------------------------------------------------------------
enum max_half_width_e { max_half_width = 64 }; enum max_half_width_e
{
max_half_width = 64
};
//--------------------------------------------------------------------- //---------------------------------------------------------------------
line_interpolator_image(renderer_type& ren, line_interpolator_image(renderer_type& ren, const line_parameters& lp,
const line_parameters& lp, int sx, int sy, int ex, int ey,
int sx,
int sy,
int ex,
int ey,
int pattern_start, int pattern_start,
double scale_x) double scale_x) :
: m_lp(lp) m_lp(lp),
, m_li(lp.vertical ? line_dbl_hr(lp.x2 - lp.x1) : line_dbl_hr(lp.y2 - lp.y1), lp.vertical ? lp.dy : lp.dx + 1) m_li(lp.vertical ? line_dbl_hr(lp.x2 - lp.x1) :
, m_di(lp.x1, line_dbl_hr(lp.y2 - lp.y1),
lp.y1, lp.vertical ? lp.dy : lp.dx + 1),
lp.x2, m_di(lp.x1, lp.y1, lp.x2, lp.y2, sx, sy, ex, ey, lp.len, scale_x,
lp.y2, lp.x1 & ~line_subpixel_mask, lp.y1 & ~line_subpixel_mask),
sx, m_ren(ren),
sy, m_x(lp.x1 >> line_subpixel_shift),
ex, m_y(lp.y1 >> line_subpixel_shift),
ey, m_old_x(m_x),
lp.len, m_old_y(m_y),
scale_x, m_count((lp.vertical ? std::abs((lp.y2 >> line_subpixel_shift) - m_y) :
lp.x1 & ~line_subpixel_mask, std::abs((lp.x2 >> line_subpixel_shift) - m_x))),
lp.y1 & ~line_subpixel_mask) m_width(ren.subpixel_width()),
, m_ren(ren)
, m_x(lp.x1 >> line_subpixel_shift)
, m_y(lp.y1 >> line_subpixel_shift)
, m_old_x(m_x)
, m_old_y(m_y)
, m_count((lp.vertical ? std::abs((lp.y2 >> line_subpixel_shift) - m_y)
: std::abs((lp.x2 >> line_subpixel_shift) - m_x)))
, m_width(ren.subpixel_width())
,
//m_max_extent(m_width >> (line_subpixel_shift - 2)), //m_max_extent(m_width >> (line_subpixel_shift - 2)),
m_max_extent((m_width + line_subpixel_scale) >> line_subpixel_shift) m_max_extent((m_width + line_subpixel_scale) >> line_subpixel_shift),
, m_start(pattern_start + (m_max_extent + 2) * ren.pattern_width()) m_start(pattern_start + (m_max_extent + 2) * ren.pattern_width()),
, m_step(0) m_step(0)
{ {
agg::dda2_line_interpolator li(0, agg::dda2_line_interpolator li(0, lp.vertical ?
lp.vertical ? (lp.dy * agg::line_subpixel_scale) (lp.dy * agg::line_subpixel_scale) :
: (lp.dx * agg::line_subpixel_scale), (lp.dx * agg::line_subpixel_scale),
lp.len); lp.len);
unsigned i; unsigned i;
@ -517,8 +514,7 @@ class line_interpolator_image
for(i = 0; i < max_half_width; ++i) for(i = 0; i < max_half_width; ++i)
{ {
m_dist_pos[i] = li.y(); m_dist_pos[i] = li.y();
if (m_dist_pos[i] >= stop) if(m_dist_pos[i] >= stop) break;
break;
++li; ++li;
} }
m_dist_pos[i] = 0x7FFF0000; m_dist_pos[i] = 0x7FFF0000;
@ -535,33 +531,29 @@ class line_interpolator_image
m_y -= lp.inc; m_y -= lp.inc;
m_x = (m_lp.x1 + m_li.y()) >> line_subpixel_shift; m_x = (m_lp.x1 + m_li.y()) >> line_subpixel_shift;
if (lp.inc > 0) if(lp.inc > 0) m_di.dec_y(m_x - m_old_x);
m_di.dec_y(m_x - m_old_x); else m_di.inc_y(m_x - m_old_x);
else
m_di.inc_y(m_x - m_old_x);
m_old_x = m_x; m_old_x = m_x;
dist1_start = dist2_start = m_di.dist_start(); dist1_start = dist2_start = m_di.dist_start();
int dx = 0; int dx = 0;
if (dist1_start < 0) if(dist1_start < 0) ++npix;
++npix;
do do
{ {
dist1_start += m_di.dy_start(); dist1_start += m_di.dy_start();
dist2_start -= m_di.dy_start(); dist2_start -= m_di.dy_start();
if (dist1_start < 0) if(dist1_start < 0) ++npix;
++npix; if(dist2_start < 0) ++npix;
if (dist2_start < 0)
++npix;
++dx; ++dx;
} while (m_dist_pos[dx] <= m_width); }
if (npix == 0) while(m_dist_pos[dx] <= m_width);
break; if(npix == 0) break;
npix = 0; npix = 0;
} while (--m_step >= -m_max_extent); }
while(--m_step >= -m_max_extent);
} }
else else
{ {
@ -572,33 +564,29 @@ class line_interpolator_image
m_x -= lp.inc; m_x -= lp.inc;
m_y = (m_lp.y1 + m_li.y()) >> line_subpixel_shift; m_y = (m_lp.y1 + m_li.y()) >> line_subpixel_shift;
if (lp.inc > 0) if(lp.inc > 0) m_di.dec_x(m_y - m_old_y);
m_di.dec_x(m_y - m_old_y); else m_di.inc_x(m_y - m_old_y);
else
m_di.inc_x(m_y - m_old_y);
m_old_y = m_y; m_old_y = m_y;
dist1_start = dist2_start = m_di.dist_start(); dist1_start = dist2_start = m_di.dist_start();
int dy = 0; int dy = 0;
if (dist1_start < 0) if(dist1_start < 0) ++npix;
++npix;
do do
{ {
dist1_start -= m_di.dx_start(); dist1_start -= m_di.dx_start();
dist2_start += m_di.dx_start(); dist2_start += m_di.dx_start();
if (dist1_start < 0) if(dist1_start < 0) ++npix;
++npix; if(dist2_start < 0) ++npix;
if (dist2_start < 0)
++npix;
++dy; ++dy;
} while (m_dist_pos[dy] <= m_width); }
if (npix == 0) while(m_dist_pos[dy] <= m_width);
break; if(npix == 0) break;
npix = 0; npix = 0;
} while (--m_step >= -m_max_extent); }
while(--m_step >= -m_max_extent);
} }
m_li.adjust_forward(); m_li.adjust_forward();
m_step -= m_max_extent; m_step -= m_max_extent;
@ -611,18 +599,15 @@ class line_interpolator_image
m_x += m_lp.inc; m_x += m_lp.inc;
m_y = (m_lp.y1 + m_li.y()) >> line_subpixel_shift; m_y = (m_lp.y1 + m_li.y()) >> line_subpixel_shift;
if (m_lp.inc > 0) if(m_lp.inc > 0) m_di.inc_x(m_y - m_old_y);
m_di.inc_x(m_y - m_old_y); else m_di.dec_x(m_y - m_old_y);
else
m_di.dec_x(m_y - m_old_y);
m_old_y = m_y; m_old_y = m_y;
int s1 = m_di.dist() / m_lp.len; int s1 = m_di.dist() / m_lp.len;
int s2 = -s1; int s2 = -s1;
if (m_lp.inc < 0) if(m_lp.inc < 0) s1 = -s1;
s1 = -s1;
int dist_start; int dist_start;
int dist_pict; int dist_pict;
@ -657,8 +642,7 @@ class line_interpolator_image
p1->clear(); p1->clear();
if(dist_end > 0 && dist_start <= 0) if(dist_end > 0 && dist_start <= 0)
{ {
if (m_lp.inc > 0) if(m_lp.inc > 0) dist = -dist;
dist = -dist;
m_ren.pixel(p1, dist_pict, s2 - dist); m_ren.pixel(p1, dist_pict, s2 - dist);
++npix; ++npix;
} }
@ -679,17 +663,21 @@ class line_interpolator_image
p0->clear(); p0->clear();
if(dist_end > 0 && dist_start <= 0) if(dist_end > 0 && dist_start <= 0)
{ {
if (m_lp.inc > 0) if(m_lp.inc > 0) dist = -dist;
dist = -dist;
m_ren.pixel(p0, dist_pict, s2 + dist); m_ren.pixel(p0, dist_pict, s2 + dist);
++npix; ++npix;
} }
++dy; ++dy;
} }
m_ren.blend_color_vspan(m_x, m_y - dy + 1, unsigned(p1 - p0), p0); m_ren.blend_color_vspan(m_x,
m_y - dy + 1,
unsigned(p1 - p0),
p0);
return npix && ++m_step < m_count; return npix && ++m_step < m_count;
} }
//--------------------------------------------------------------------- //---------------------------------------------------------------------
bool step_ver() bool step_ver()
{ {
@ -697,18 +685,15 @@ class line_interpolator_image
m_y += m_lp.inc; m_y += m_lp.inc;
m_x = (m_lp.x1 + m_li.y()) >> line_subpixel_shift; m_x = (m_lp.x1 + m_li.y()) >> line_subpixel_shift;
if (m_lp.inc > 0) if(m_lp.inc > 0) m_di.inc_y(m_x - m_old_x);
m_di.inc_y(m_x - m_old_x); else m_di.dec_y(m_x - m_old_x);
else
m_di.dec_y(m_x - m_old_x);
m_old_x = m_x; m_old_x = m_x;
int s1 = m_di.dist() / m_lp.len; int s1 = m_di.dist() / m_lp.len;
int s2 = -s1; int s2 = -s1;
if (m_lp.inc > 0) if(m_lp.inc > 0) s1 = -s1;
s1 = -s1;
int dist_start; int dist_start;
int dist_pict; int dist_pict;
@ -743,8 +728,7 @@ class line_interpolator_image
p1->clear(); p1->clear();
if(dist_end > 0 && dist_start <= 0) if(dist_end > 0 && dist_start <= 0)
{ {
if (m_lp.inc > 0) if(m_lp.inc > 0) dist = -dist;
dist = -dist;
m_ren.pixel(p1, dist_pict, s2 + dist); m_ren.pixel(p1, dist_pict, s2 + dist);
++npix; ++npix;
} }
@ -765,17 +749,20 @@ class line_interpolator_image
p0->clear(); p0->clear();
if(dist_end > 0 && dist_start <= 0) if(dist_end > 0 && dist_start <= 0)
{ {
if (m_lp.inc > 0) if(m_lp.inc > 0) dist = -dist;
dist = -dist;
m_ren.pixel(p0, dist_pict, s2 - dist); m_ren.pixel(p0, dist_pict, s2 - dist);
++npix; ++npix;
} }
++dx; ++dx;
} }
m_ren.blend_color_hspan(m_x - dx + 1, m_y, unsigned(p1 - p0), p0); m_ren.blend_color_hspan(m_x - dx + 1,
m_y,
unsigned(p1 - p0),
p0);
return npix && ++m_step < m_count; return npix && ++m_step < m_count;
} }
//--------------------------------------------------------------------- //---------------------------------------------------------------------
int pattern_end() const { return m_start + m_di.len(); } int pattern_end() const { return m_start + m_di.len(); }
@ -786,7 +773,8 @@ class line_interpolator_image
private: private:
line_interpolator_image(const line_interpolator_image<Renderer>&); line_interpolator_image(const line_interpolator_image<Renderer>&);
const line_interpolator_image<Renderer>& operator=(const line_interpolator_image<Renderer>&); const line_interpolator_image<Renderer>&
operator = (const line_interpolator_image<Renderer>&);
protected: protected:
const line_parameters& m_lp; const line_parameters& m_lp;
@ -807,6 +795,13 @@ class line_interpolator_image
color_type m_colors[max_half_width * 2 + 4]; color_type m_colors[max_half_width * 2 + 4];
}; };
//===================================================renderer_outline_image //===================================================renderer_outline_image
template<class BaseRenderer, class ImagePattern> template<class BaseRenderer, class ImagePattern>
class renderer_outline_image class renderer_outline_image
@ -818,14 +813,15 @@ class renderer_outline_image
typedef typename base_ren_type::color_type color_type; typedef typename base_ren_type::color_type color_type;
typedef ImagePattern pattern_type; typedef ImagePattern pattern_type;
//--------------------------------------------------------------------- //---------------------------------------------------------------------
renderer_outline_image(base_ren_type& ren, const pattern_type& patt) renderer_outline_image(base_ren_type& ren, const pattern_type& patt) :
: m_ren(&ren) m_ren(&ren),
, m_pattern(&patt) m_pattern(&patt),
, m_start(0) m_start(0),
, m_scale_x(1.0) m_scale_x(1.0),
, m_clip_box(0, 0, 0, 0) m_clip_box(0,0,0,0),
, m_clipping(false) m_clipping(false)
{} {}
void attach(base_ren_type& ren) { m_ren = &ren; } void attach(base_ren_type& ren) { m_ren = &ren; }
@ -858,7 +854,10 @@ class renderer_outline_image
double width() const { return double(subpixel_width()) / line_subpixel_scale; } double width() const { return double(subpixel_width()) / line_subpixel_scale; }
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void pixel(color_type* p, int x, int y) const { m_pattern->pixel(p, x, y); } void pixel(color_type* p, int x, int y) const
{
m_pattern->pixel(p, x, y);
}
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void blend_color_hspan(int x, int y, unsigned len, const color_type* colors) void blend_color_hspan(int x, int y, unsigned len, const color_type* colors)
@ -878,22 +877,32 @@ class renderer_outline_image
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
template<class Cmp> template<class Cmp>
void semidot(Cmp, int, int, int, int) void semidot(Cmp, int, int, int, int)
{} {
}
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void pie(int, int, int, int, int, int) {} void pie(int, int, int, int, int, int)
{
}
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void line0(const line_parameters&) {} void line0(const line_parameters&)
{
}
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void line1(const line_parameters&, int, int) {} void line1(const line_parameters&, int, int)
{
}
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void line2(const line_parameters&, int, int) {} void line2(const line_parameters&, int, int)
{
}
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void line3_no_clip(const line_parameters& lp, int sx, int sy, int ex, int ey) void line3_no_clip(const line_parameters& lp,
int sx, int sy, int ex, int ey)
{ {
if(lp.len > line_max_length) if(lp.len > line_max_length)
{ {
@ -908,22 +917,24 @@ class renderer_outline_image
fix_degenerate_bisectrix_start(lp, &sx, &sy); fix_degenerate_bisectrix_start(lp, &sx, &sy);
fix_degenerate_bisectrix_end(lp, &ex, &ey); fix_degenerate_bisectrix_end(lp, &ex, &ey);
line_interpolator_image<self_type> li(*this, lp, sx, sy, ex, ey, m_start, m_scale_x); line_interpolator_image<self_type> li(*this, lp,
sx, sy,
ex, ey,
m_start, m_scale_x);
if(li.vertical()) if(li.vertical())
{ {
while (li.step_ver()) while(li.step_ver()) ;
;
} }
else else
{ {
while (li.step_hor()) while(li.step_hor()) ;
;
} }
m_start += uround(lp.len / m_scale_x); m_start += uround(lp.len / m_scale_x);
} }
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
void line3(const line_parameters& lp, int sx, int sy, int ex, int ey) void line3(const line_parameters& lp,
int sx, int sy, int ex, int ey)
{ {
if(m_clipping) if(m_clipping)
{ {
@ -937,7 +948,8 @@ class renderer_outline_image
{ {
if(flags) if(flags)
{ {
line_parameters lp2(x1, y1, x2, y2, uround(calc_distance(x1, y1, x2, y2))); line_parameters lp2(x1, y1, x2, y2,
uround(calc_distance(x1, y1, x2, y2)));
if(flags & 1) if(flags & 1)
{ {
m_start += uround(calc_distance(lp.x1, lp.y1, x1, y1) / m_scale_x); m_start += uround(calc_distance(lp.x1, lp.y1, x1, y1) / m_scale_x);
@ -989,6 +1001,12 @@ class renderer_outline_image
bool m_clipping; bool m_clipping;
}; };
} // namespace agg
}
#endif #endif

View file

@ -25,27 +25,30 @@
#include "agg_dda_line.h" #include "agg_dda_line.h"
#include "agg_ellipse_bresenham.h" #include "agg_ellipse_bresenham.h"
namespace agg { namespace agg
{
//-----------------------------------------------------renderer_primitives //-----------------------------------------------------renderer_primitives
template<class BaseRenderer> template<class BaseRenderer> class renderer_primitives
class renderer_primitives
{ {
public: public:
typedef BaseRenderer base_ren_type; typedef BaseRenderer base_ren_type;
typedef typename base_ren_type::color_type color_type; typedef typename base_ren_type::color_type color_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
explicit renderer_primitives(base_ren_type& ren) explicit renderer_primitives(base_ren_type& ren) :
: m_ren(&ren) m_ren(&ren),
, m_fill_color() m_fill_color(),
, m_line_color() m_line_color(),
, m_curr_x(0) m_curr_x(0),
, m_curr_y(0) m_curr_y(0)
{} {}
void attach(base_ren_type& ren) { m_ren = &ren; } void attach(base_ren_type& ren) { m_ren = &ren; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
static int coord(double c) { return iround(c * line_bresenham_interpolator::subpixel_scale); } static int coord(double c)
{
return iround(c * line_bresenham_interpolator::subpixel_scale);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void fill_color(const color_type& c) { m_fill_color = c; } void fill_color(const color_type& c) { m_fill_color = c; }
@ -63,7 +66,10 @@ class renderer_primitives
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void solid_rectangle(int x1, int y1, int x2, int y2) { m_ren->blend_bar(x1, y1, x2, y2, m_fill_color, cover_full); } void solid_rectangle(int x1, int y1, int x2, int y2)
{
m_ren->blend_bar(x1, y1, x2, y2, m_fill_color, cover_full);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void outlined_rectangle(int x1, int y1, int x2, int y2) void outlined_rectangle(int x1, int y1, int x2, int y2)
@ -87,7 +93,8 @@ class renderer_primitives
m_ren->blend_pixel(x - dx, y - dy, m_line_color, cover_full); m_ren->blend_pixel(x - dx, y - dy, m_line_color, cover_full);
m_ren->blend_pixel(x - dx, y + dy, m_line_color, cover_full); m_ren->blend_pixel(x - dx, y + dy, m_line_color, cover_full);
++ei; ++ei;
} while (dy < 0); }
while(dy < 0);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -112,7 +119,8 @@ class renderer_primitives
dx0 = dx; dx0 = dx;
dy0 = dy; dy0 = dy;
++ei; ++ei;
} while (dy < 0); }
while(dy < 0);
m_ren->blend_hline(x-dx0, y+dy0, x+dx0, m_fill_color, cover_full); m_ren->blend_hline(x-dx0, y+dy0, x+dx0, m_fill_color, cover_full);
} }
@ -139,7 +147,8 @@ class renderer_primitives
m_ren->blend_hline(x-dx+1, y-dy, x+dx-1, m_fill_color, cover_full); m_ren->blend_hline(x-dx+1, y-dy, x+dx-1, m_fill_color, cover_full);
} }
++ei; ++ei;
} while (dy < 0); }
while(dy < 0);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -157,8 +166,7 @@ class renderer_primitives
return; return;
} }
if (last) if(last) ++len;
++len;
if(li.is_ver()) if(li.is_ver())
{ {
@ -166,7 +174,8 @@ class renderer_primitives
{ {
m_ren->blend_pixel(li.x2(), li.y1(), m_line_color, cover_full); m_ren->blend_pixel(li.x2(), li.y1(), m_line_color, cover_full);
li.vstep(); li.vstep();
} while (--len); }
while(--len);
} }
else else
{ {
@ -174,7 +183,8 @@ class renderer_primitives
{ {
m_ren->blend_pixel(li.x1(), li.y2(), m_line_color, cover_full); m_ren->blend_pixel(li.x1(), li.y2(), m_line_color, cover_full);
li.hstep(); li.hstep();
} while (--len); }
while(--len);
} }
} }
@ -209,6 +219,6 @@ class renderer_primitives
int m_curr_y; int m_curr_y;
}; };
} // namespace agg }
#endif #endif

View file

@ -18,7 +18,8 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//==============================================renderer_raster_htext_solid //==============================================renderer_raster_htext_solid
template<class BaseRenderer, class GlyphGenerator> template<class BaseRenderer, class GlyphGenerator>
@ -30,9 +31,9 @@ class renderer_raster_htext_solid
typedef typename glyph_gen_type::glyph_rect glyph_rect; typedef typename glyph_gen_type::glyph_rect glyph_rect;
typedef typename ren_type::color_type color_type; typedef typename ren_type::color_type color_type;
renderer_raster_htext_solid(ren_type& ren, glyph_gen_type& glyph) renderer_raster_htext_solid(ren_type& ren, glyph_gen_type& glyph) :
: m_ren(&ren) m_ren(&ren),
, m_glyph(&glyph) m_glyph(&glyph)
{} {}
void attach(ren_type& ren) { m_ren = &ren; } void attach(ren_type& ren) { m_ren = &ren; }
@ -55,14 +56,18 @@ class renderer_raster_htext_solid
{ {
for(i = r.y1; i <= r.y2; i++) for(i = r.y1; i <= r.y2; i++)
{ {
m_ren->blend_solid_hspan(r.x1, i, (r.x2 - r.x1 + 1), m_color, m_glyph->span(r.y2 - i)); m_ren->blend_solid_hspan(r.x1, i, (r.x2 - r.x1 + 1),
m_color,
m_glyph->span(r.y2 - i));
} }
} }
else else
{ {
for(i = r.y1; i <= r.y2; i++) for(i = r.y1; i <= r.y2; i++)
{ {
m_ren->blend_solid_hspan(r.x1, i, (r.x2 - r.x1 + 1), m_color, m_glyph->span(i - r.y1)); m_ren->blend_solid_hspan(r.x1, i, (r.x2 - r.x1 + 1),
m_color,
m_glyph->span(i - r.y1));
} }
} }
} }
@ -78,6 +83,8 @@ class renderer_raster_htext_solid
color_type m_color; color_type m_color;
}; };
//=============================================renderer_raster_vtext_solid //=============================================renderer_raster_vtext_solid
template<class BaseRenderer, class GlyphGenerator> template<class BaseRenderer, class GlyphGenerator>
class renderer_raster_vtext_solid class renderer_raster_vtext_solid
@ -88,10 +95,11 @@ class renderer_raster_vtext_solid
typedef typename glyph_gen_type::glyph_rect glyph_rect; typedef typename glyph_gen_type::glyph_rect glyph_rect;
typedef typename ren_type::color_type color_type; typedef typename ren_type::color_type color_type;
renderer_raster_vtext_solid(ren_type& ren, glyph_gen_type& glyph) renderer_raster_vtext_solid(ren_type& ren, glyph_gen_type& glyph) :
: m_ren(&ren) m_ren(&ren),
, m_glyph(&glyph) m_glyph(&glyph)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void color(const color_type& c) { m_color = c; } void color(const color_type& c) { m_color = c; }
@ -112,14 +120,18 @@ class renderer_raster_vtext_solid
{ {
for(i = r.y1; i <= r.y2; i++) for(i = r.y1; i <= r.y2; i++)
{ {
m_ren->blend_solid_vspan(i, r.x1, (r.x2 - r.x1 + 1), m_color, m_glyph->span(i - r.y1)); m_ren->blend_solid_vspan(i, r.x1, (r.x2 - r.x1 + 1),
m_color,
m_glyph->span(i - r.y1));
} }
} }
else else
{ {
for(i = r.y1; i <= r.y2; i++) for(i = r.y1; i <= r.y2; i++)
{ {
m_ren->blend_solid_vspan(i, r.x1, (r.x2 - r.x1 + 1), m_color, m_glyph->span(r.y2 - i)); m_ren->blend_solid_vspan(i, r.x1, (r.x2 - r.x1 + 1),
m_color,
m_glyph->span(r.y2 - i));
} }
} }
} }
@ -135,6 +147,11 @@ class renderer_raster_vtext_solid
color_type m_color; color_type m_color;
}; };
//===================================================renderer_raster_htext //===================================================renderer_raster_htext
template<class ScanlineRenderer, class GlyphGenerator> template<class ScanlineRenderer, class GlyphGenerator>
class renderer_raster_htext class renderer_raster_htext
@ -157,19 +174,18 @@ class renderer_raster_htext
const cover_type* covers; const cover_type* covers;
const_span() {} const_span() {}
const_span(int x_, unsigned len_, const cover_type* covers_) const_span(int x_, unsigned len_, const cover_type* covers_) :
: x(x_) x(x_), len(len_), covers(covers_)
, len(len_)
, covers(covers_)
{} {}
}; };
typedef const const_span* const_iterator; typedef const const_span* const_iterator;
//---------------------------------------------------------------- //----------------------------------------------------------------
scanline_single_span(int x, int y, unsigned len, const cover_type* covers) scanline_single_span(int x, int y, unsigned len,
: m_y(y) const cover_type* covers) :
, m_span(x, len, covers) m_y(y),
m_span(x, len, covers)
{} {}
//---------------------------------------------------------------- //----------------------------------------------------------------
@ -183,11 +199,15 @@ class renderer_raster_htext
const_span m_span; const_span m_span;
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
renderer_raster_htext(ren_type& ren, glyph_gen_type& glyph) renderer_raster_htext(ren_type& ren, glyph_gen_type& glyph) :
: m_ren(&ren) m_ren(&ren),
, m_glyph(&glyph) m_glyph(&glyph)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class CharT> template<class CharT>
@ -205,14 +225,22 @@ class renderer_raster_htext
{ {
for(i = r.y1; i <= r.y2; i++) for(i = r.y1; i <= r.y2; i++)
{ {
m_ren->render(scanline_single_span(r.x1, i, (r.x2 - r.x1 + 1), m_glyph->span(r.y2 - i))); m_ren->render(
scanline_single_span(r.x1,
i,
(r.x2 - r.x1 + 1),
m_glyph->span(r.y2 - i)));
} }
} }
else else
{ {
for(i = r.y1; i <= r.y2; i++) for(i = r.y1; i <= r.y2; i++)
{ {
m_ren->render(scanline_single_span(r.x1, i, (r.x2 - r.x1 + 1), m_glyph->span(i - r.y1))); m_ren->render(
scanline_single_span(r.x1,
i,
(r.x2 - r.x1 + 1),
m_glyph->span(i - r.y1)));
} }
} }
} }
@ -227,6 +255,10 @@ class renderer_raster_htext
glyph_gen_type* m_glyph; glyph_gen_type* m_glyph;
}; };
} // namespace agg
}
#endif #endif

View file

@ -19,11 +19,14 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_renderer_base.h" #include "agg_renderer_base.h"
namespace agg { namespace agg
{
//================================================render_scanline_aa_solid //================================================render_scanline_aa_solid
template<class Scanline, class BaseRenderer, class ColorT> template<class Scanline, class BaseRenderer, class ColorT>
void render_scanline_aa_solid(const Scanline& sl, BaseRenderer& ren, const ColorT& color) void render_scanline_aa_solid(const Scanline& sl,
BaseRenderer& ren,
const ColorT& color)
{ {
int y = sl.y(); int y = sl.y();
unsigned num_spans = sl.num_spans(); unsigned num_spans = sl.num_spans();
@ -34,21 +37,26 @@ void render_scanline_aa_solid(const Scanline& sl, BaseRenderer& ren, const Color
int x = span->x; int x = span->x;
if(span->len > 0) if(span->len > 0)
{ {
ren.blend_solid_hspan(x, y, (unsigned)span->len, color, span->covers); ren.blend_solid_hspan(x, y, (unsigned)span->len,
color,
span->covers);
} }
else else
{ {
ren.blend_hline(x, y, (unsigned)(x - span->len - 1), color, *(span->covers)); ren.blend_hline(x, y, (unsigned)(x - span->len - 1),
color,
*(span->covers));
} }
if (--num_spans == 0) if(--num_spans == 0) break;
break;
++span; ++span;
} }
} }
//===============================================render_scanlines_aa_solid //===============================================render_scanlines_aa_solid
template<class Rasterizer, class Scanline, class BaseRenderer, class ColorT> template<class Rasterizer, class Scanline,
void render_scanlines_aa_solid(Rasterizer& ras, Scanline& sl, BaseRenderer& ren, const ColorT& color) class BaseRenderer, class ColorT>
void render_scanlines_aa_solid(Rasterizer& ras, Scanline& sl,
BaseRenderer& ren, const ColorT& color)
{ {
if(ras.rewind_scanlines()) if(ras.rewind_scanlines())
{ {
@ -68,21 +76,19 @@ void render_scanlines_aa_solid(Rasterizer& ras, Scanline& sl, BaseRenderer& ren,
} }
//==============================================renderer_scanline_aa_solid //==============================================renderer_scanline_aa_solid
template<class BaseRenderer> template<class BaseRenderer> class renderer_scanline_aa_solid
class renderer_scanline_aa_solid
{ {
public: public:
typedef BaseRenderer base_ren_type; typedef BaseRenderer base_ren_type;
typedef typename base_ren_type::color_type color_type; typedef typename base_ren_type::color_type color_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
renderer_scanline_aa_solid() renderer_scanline_aa_solid() : m_ren(0) {}
: m_ren(0) explicit renderer_scanline_aa_solid(base_ren_type& ren) : m_ren(&ren) {}
{} void attach(base_ren_type& ren)
explicit renderer_scanline_aa_solid(base_ren_type& ren) {
: m_ren(&ren) m_ren = &ren;
{} }
void attach(base_ren_type& ren) { m_ren = &ren; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void color(const color_type& c) { m_color = c; } void color(const color_type& c) { m_color = c; }
@ -92,8 +98,7 @@ class renderer_scanline_aa_solid
void prepare() {} void prepare() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> void render(const Scanline& sl)
void render(const Scanline& sl)
{ {
render_scanline_aa_solid(sl, *m_ren, m_color); render_scanline_aa_solid(sl, *m_ren, m_color);
} }
@ -103,9 +108,12 @@ class renderer_scanline_aa_solid
color_type m_color; color_type m_color;
}; };
//======================================================render_scanline_aa //======================================================render_scanline_aa
template<class Scanline, class BaseRenderer, class SpanAllocator, class SpanGenerator> template<class Scanline, class BaseRenderer,
void render_scanline_aa(const Scanline& sl, BaseRenderer& ren, SpanAllocator& alloc, SpanGenerator& span_gen) class SpanAllocator, class SpanGenerator>
void render_scanline_aa(const Scanline& sl, BaseRenderer& ren,
SpanAllocator& alloc, SpanGenerator& span_gen)
{ {
int y = sl.y(); int y = sl.y();
@ -117,25 +125,22 @@ void render_scanline_aa(const Scanline& sl, BaseRenderer& ren, SpanAllocator& al
int len = span->len; int len = span->len;
const typename Scanline::cover_type* covers = span->covers; const typename Scanline::cover_type* covers = span->covers;
if (len < 0) if(len < 0) len = -len;
len = -len;
typename BaseRenderer::color_type* colors = alloc.allocate(len); typename BaseRenderer::color_type* colors = alloc.allocate(len);
span_gen.generate(colors, x, y, len); span_gen.generate(colors, x, y, len);
ren.blend_color_hspan(x, y, len, colors, (span->len < 0) ? 0 : covers, *covers); ren.blend_color_hspan(x, y, len, colors,
(span->len < 0) ? 0 : covers, *covers);
if (--num_spans == 0) if(--num_spans == 0) break;
break;
++span; ++span;
} }
} }
//======================================================render_scanline_aa_alpha //======================================================render_scanline_aa_alpha
template<class Scanline, class BaseRenderer, class SpanAllocator, class SpanGenerator> template<class Scanline, class BaseRenderer,
void render_scanline_aa_alpha(const Scanline& sl, class SpanAllocator, class SpanGenerator>
BaseRenderer& ren, void render_scanline_aa_alpha(const Scanline& sl, BaseRenderer& ren,
SpanAllocator& alloc, SpanAllocator& alloc, SpanGenerator& span_gen, unsigned alpha)
SpanGenerator& span_gen,
unsigned alpha)
{ {
int y = sl.y(); int y = sl.y();
@ -147,25 +152,23 @@ void render_scanline_aa_alpha(const Scanline& sl,
int len = span->len; int len = span->len;
const typename Scanline::cover_type* covers = span->covers; const typename Scanline::cover_type* covers = span->covers;
if (len < 0) if(len < 0) len = -len;
len = -len;
typename BaseRenderer::color_type* colors = alloc.allocate(len); typename BaseRenderer::color_type* colors = alloc.allocate(len);
span_gen.generate(colors, x, y, len); span_gen.generate(colors, x, y, len);
ren.blend_color_hspan_alpha(x, y, len, colors, alpha, (span->len < 0) ? 0 : covers, *covers); ren.blend_color_hspan_alpha(x, y, len, colors, alpha,
(span->len < 0) ? 0 : covers, *covers);
if (--num_spans == 0) if(--num_spans == 0) break;
break;
++span; ++span;
} }
} }
//=====================================================render_scanlines_aa //=====================================================render_scanlines_aa
template<class Rasterizer, class Scanline, class BaseRenderer, class SpanAllocator, class SpanGenerator> template<class Rasterizer, class Scanline, class BaseRenderer,
void render_scanlines_aa(Rasterizer& ras, class SpanAllocator, class SpanGenerator>
Scanline& sl, void render_scanlines_aa(Rasterizer& ras, Scanline& sl, BaseRenderer& ren,
BaseRenderer& ren, SpanAllocator& alloc, SpanGenerator& span_gen)
SpanAllocator& alloc,
SpanGenerator& span_gen)
{ {
if(ras.rewind_scanlines()) if(ras.rewind_scanlines())
{ {
@ -188,17 +191,17 @@ class renderer_scanline_aa
typedef SpanGenerator span_gen_type; typedef SpanGenerator span_gen_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
renderer_scanline_aa() renderer_scanline_aa() : m_ren(0), m_alloc(0), m_span_gen(0) {}
: m_ren(0) renderer_scanline_aa(base_ren_type& ren,
, m_alloc(0) alloc_type& alloc,
, m_span_gen(0) span_gen_type& span_gen) :
m_ren(&ren),
m_alloc(&alloc),
m_span_gen(&span_gen)
{} {}
renderer_scanline_aa(base_ren_type& ren, alloc_type& alloc, span_gen_type& span_gen) void attach(base_ren_type& ren,
: m_ren(&ren) alloc_type& alloc,
, m_alloc(&alloc) span_gen_type& span_gen)
, m_span_gen(&span_gen)
{}
void attach(base_ren_type& ren, alloc_type& alloc, span_gen_type& span_gen)
{ {
m_ren = &ren; m_ren = &ren;
m_alloc = &alloc; m_alloc = &alloc;
@ -209,8 +212,7 @@ class renderer_scanline_aa
void prepare() { m_span_gen->prepare(); } void prepare() { m_span_gen->prepare(); }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> void render(const Scanline& sl)
void render(const Scanline& sl)
{ {
render_scanline_aa(sl, *m_ren, *m_alloc, *m_span_gen); render_scanline_aa(sl, *m_ren, *m_alloc, *m_span_gen);
} }
@ -221,6 +223,7 @@ class renderer_scanline_aa
span_gen_type* m_span_gen; span_gen_type* m_span_gen;
}; };
//====================================================renderer_scanline_aa //====================================================renderer_scanline_aa
template<class BaseRenderer, class SpanAllocator, class SpanGenerator> template<class BaseRenderer, class SpanAllocator, class SpanGenerator>
class renderer_scanline_aa_alpha class renderer_scanline_aa_alpha
@ -231,19 +234,19 @@ class renderer_scanline_aa_alpha
typedef SpanGenerator span_gen_type; typedef SpanGenerator span_gen_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
renderer_scanline_aa_alpha() renderer_scanline_aa_alpha() : m_ren(0), m_alloc(0), m_span_gen(0), m_alpha(1.0) {}
: m_ren(0) renderer_scanline_aa_alpha(base_ren_type& ren,
, m_alloc(0) alloc_type& alloc,
, m_span_gen(0) span_gen_type& span_gen,
, m_alpha(1.0) unsigned alpha) :
m_ren(&ren),
m_alloc(&alloc),
m_span_gen(&span_gen),
m_alpha(alpha)
{} {}
renderer_scanline_aa_alpha(base_ren_type& ren, alloc_type& alloc, span_gen_type& span_gen, unsigned alpha) void attach(base_ren_type& ren,
: m_ren(&ren) alloc_type& alloc,
, m_alloc(&alloc) span_gen_type& span_gen)
, m_span_gen(&span_gen)
, m_alpha(alpha)
{}
void attach(base_ren_type& ren, alloc_type& alloc, span_gen_type& span_gen)
{ {
m_ren = &ren; m_ren = &ren;
m_alloc = &alloc; m_alloc = &alloc;
@ -254,8 +257,7 @@ class renderer_scanline_aa_alpha
void prepare() { m_span_gen->prepare(); } void prepare() { m_span_gen->prepare(); }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> void render(const Scanline& sl)
void render(const Scanline& sl)
{ {
render_scanline_aa_alpha(sl, *m_ren, *m_alloc, *m_span_gen, m_alpha); render_scanline_aa_alpha(sl, *m_ren, *m_alloc, *m_span_gen, m_alpha);
} }
@ -267,24 +269,34 @@ class renderer_scanline_aa_alpha
unsigned m_alpha; unsigned m_alpha;
}; };
//===============================================render_scanline_bin_solid //===============================================render_scanline_bin_solid
template<class Scanline, class BaseRenderer, class ColorT> template<class Scanline, class BaseRenderer, class ColorT>
void render_scanline_bin_solid(const Scanline& sl, BaseRenderer& ren, const ColorT& color) void render_scanline_bin_solid(const Scanline& sl,
BaseRenderer& ren,
const ColorT& color)
{ {
unsigned num_spans = sl.num_spans(); unsigned num_spans = sl.num_spans();
typename Scanline::const_iterator span = sl.begin(); typename Scanline::const_iterator span = sl.begin();
for(;;) for(;;)
{ {
ren.blend_hline(span->x, sl.y(), span->x - 1 + ((span->len < 0) ? -span->len : span->len), color, cover_full); ren.blend_hline(span->x,
if (--num_spans == 0) sl.y(),
break; span->x - 1 + ((span->len < 0) ?
-span->len :
span->len),
color,
cover_full);
if(--num_spans == 0) break;
++span; ++span;
} }
} }
//==============================================render_scanlines_bin_solid //==============================================render_scanlines_bin_solid
template<class Rasterizer, class Scanline, class BaseRenderer, class ColorT> template<class Rasterizer, class Scanline,
void render_scanlines_bin_solid(Rasterizer& ras, Scanline& sl, BaseRenderer& ren, const ColorT& color) class BaseRenderer, class ColorT>
void render_scanlines_bin_solid(Rasterizer& ras, Scanline& sl,
BaseRenderer& ren, const ColorT& color)
{ {
if(ras.rewind_scanlines()) if(ras.rewind_scanlines())
{ {
@ -310,11 +322,12 @@ void render_scanlines_bin_solid(Rasterizer& ras, Scanline& sl, BaseRenderer& ren
{ {
ren.blend_hline(span->x, ren.blend_hline(span->x,
sl.y(), sl.y(),
span->x - 1 + ((span->len < 0) ? -span->len : span->len), span->x - 1 + ((span->len < 0) ?
-span->len :
span->len),
ren_color, ren_color,
cover_full); cover_full);
if (--num_spans == 0) if(--num_spans == 0) break;
break;
++span; ++span;
} }
} }
@ -322,21 +335,19 @@ void render_scanlines_bin_solid(Rasterizer& ras, Scanline& sl, BaseRenderer& ren
} }
//=============================================renderer_scanline_bin_solid //=============================================renderer_scanline_bin_solid
template<class BaseRenderer> template<class BaseRenderer> class renderer_scanline_bin_solid
class renderer_scanline_bin_solid
{ {
public: public:
typedef BaseRenderer base_ren_type; typedef BaseRenderer base_ren_type;
typedef typename base_ren_type::color_type color_type; typedef typename base_ren_type::color_type color_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
renderer_scanline_bin_solid() renderer_scanline_bin_solid() : m_ren(0) {}
: m_ren(0) explicit renderer_scanline_bin_solid(base_ren_type& ren) : m_ren(&ren) {}
{} void attach(base_ren_type& ren)
explicit renderer_scanline_bin_solid(base_ren_type& ren) {
: m_ren(&ren) m_ren = &ren;
{} }
void attach(base_ren_type& ren) { m_ren = &ren; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void color(const color_type& c) { m_color = c; } void color(const color_type& c) { m_color = c; }
@ -346,8 +357,7 @@ class renderer_scanline_bin_solid
void prepare() {} void prepare() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> void render(const Scanline& sl)
void render(const Scanline& sl)
{ {
render_scanline_bin_solid(sl, *m_ren, m_color); render_scanline_bin_solid(sl, *m_ren, m_color);
} }
@ -357,9 +367,18 @@ class renderer_scanline_bin_solid
color_type m_color; color_type m_color;
}; };
//======================================================render_scanline_bin //======================================================render_scanline_bin
template<class Scanline, class BaseRenderer, class SpanAllocator, class SpanGenerator> template<class Scanline, class BaseRenderer,
void render_scanline_bin(const Scanline& sl, BaseRenderer& ren, SpanAllocator& alloc, SpanGenerator& span_gen) class SpanAllocator, class SpanGenerator>
void render_scanline_bin(const Scanline& sl, BaseRenderer& ren,
SpanAllocator& alloc, SpanGenerator& span_gen)
{ {
int y = sl.y(); int y = sl.y();
@ -369,24 +388,20 @@ void render_scanline_bin(const Scanline& sl, BaseRenderer& ren, SpanAllocator& a
{ {
int x = span->x; int x = span->x;
int len = span->len; int len = span->len;
if (len < 0) if(len < 0) len = -len;
len = -len;
typename BaseRenderer::color_type* colors = alloc.allocate(len); typename BaseRenderer::color_type* colors = alloc.allocate(len);
span_gen.generate(colors, x, y, len); span_gen.generate(colors, x, y, len);
ren.blend_color_hspan(x, y, len, colors, 0, cover_full); ren.blend_color_hspan(x, y, len, colors, 0, cover_full);
if (--num_spans == 0) if(--num_spans == 0) break;
break;
++span; ++span;
} }
} }
//=====================================================render_scanlines_bin //=====================================================render_scanlines_bin
template<class Rasterizer, class Scanline, class BaseRenderer, class SpanAllocator, class SpanGenerator> template<class Rasterizer, class Scanline, class BaseRenderer,
void render_scanlines_bin(Rasterizer& ras, class SpanAllocator, class SpanGenerator>
Scanline& sl, void render_scanlines_bin(Rasterizer& ras, Scanline& sl, BaseRenderer& ren,
BaseRenderer& ren, SpanAllocator& alloc, SpanGenerator& span_gen)
SpanAllocator& alloc,
SpanGenerator& span_gen)
{ {
if(ras.rewind_scanlines()) if(ras.rewind_scanlines())
{ {
@ -409,17 +424,17 @@ class renderer_scanline_bin
typedef SpanGenerator span_gen_type; typedef SpanGenerator span_gen_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
renderer_scanline_bin() renderer_scanline_bin() : m_ren(0), m_alloc(0), m_span_gen(0) {}
: m_ren(0) renderer_scanline_bin(base_ren_type& ren,
, m_alloc(0) alloc_type& alloc,
, m_span_gen(0) span_gen_type& span_gen) :
m_ren(&ren),
m_alloc(&alloc),
m_span_gen(&span_gen)
{} {}
renderer_scanline_bin(base_ren_type& ren, alloc_type& alloc, span_gen_type& span_gen) void attach(base_ren_type& ren,
: m_ren(&ren) alloc_type& alloc,
, m_alloc(&alloc) span_gen_type& span_gen)
, m_span_gen(&span_gen)
{}
void attach(base_ren_type& ren, alloc_type& alloc, span_gen_type& span_gen)
{ {
m_ren = &ren; m_ren = &ren;
m_alloc = &alloc; m_alloc = &alloc;
@ -430,8 +445,7 @@ class renderer_scanline_bin
void prepare() { m_span_gen->prepare(); } void prepare() { m_span_gen->prepare(); }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> void render(const Scanline& sl)
void render(const Scanline& sl)
{ {
render_scanline_bin(sl, *m_ren, *m_alloc, *m_span_gen); render_scanline_bin(sl, *m_ren, *m_alloc, *m_span_gen);
} }
@ -442,6 +456,7 @@ class renderer_scanline_bin
span_gen_type* m_span_gen; span_gen_type* m_span_gen;
}; };
//========================================================render_scanlines //========================================================render_scanlines
template<class Rasterizer, class Scanline, class Renderer> template<class Rasterizer, class Scanline, class Renderer>
void render_scanlines(Rasterizer& ras, Scanline& sl, Renderer& ren) void render_scanlines(Rasterizer& ras, Scanline& sl, Renderer& ren)
@ -457,8 +472,10 @@ void render_scanlines(Rasterizer& ras, Scanline& sl, Renderer& ren)
} }
} }
//========================================================render_all_paths //========================================================render_all_paths
template<class Rasterizer, class Scanline, class Renderer, class VertexSource, class ColorStorage, class PathId> template<class Rasterizer, class Scanline, class Renderer,
class VertexSource, class ColorStorage, class PathId>
void render_all_paths(Rasterizer& ras, void render_all_paths(Rasterizer& ras,
Scanline& sl, Scanline& sl,
Renderer& r, Renderer& r,
@ -476,6 +493,11 @@ void render_all_paths(Rasterizer& ras,
} }
} }
//=============================================render_scanlines_compound //=============================================render_scanlines_compound
template<class Rasterizer, template<class Rasterizer,
class ScanlineAA, class ScanlineAA,
@ -530,11 +552,18 @@ void render_scanlines_compound(Rasterizer& ras,
for(;;) for(;;)
{ {
len = span_aa->len; len = span_aa->len;
sh.generate_span(color_span, span_aa->x, sl_aa.y(), len, style); sh.generate_span(color_span,
span_aa->x,
sl_aa.y(),
len,
style);
ren.blend_color_hspan(span_aa->x, sl_aa.y(), span_aa->len, color_span, span_aa->covers); ren.blend_color_hspan(span_aa->x,
if (--num_spans == 0) sl_aa.y(),
break; span_aa->len,
color_span,
span_aa->covers);
if(--num_spans == 0) break;
++span_aa; ++span_aa;
} }
} }
@ -550,10 +579,11 @@ void render_scanlines_compound(Rasterizer& ras,
num_spans = sl_bin.num_spans(); num_spans = sl_bin.num_spans();
for(;;) for(;;)
{ {
memset(mix_buffer + span_bin->x - min_x, 0, span_bin->len * sizeof(color_type)); memset(mix_buffer + span_bin->x - min_x,
0,
span_bin->len * sizeof(color_type));
if (--num_spans == 0) if(--num_spans == 0) break;
break;
++span_bin; ++span_bin;
} }
@ -592,9 +622,9 @@ void render_scanlines_compound(Rasterizer& ras,
} }
++colors; ++colors;
++covers; ++covers;
} while (--len); }
if (--num_spans == 0) while(--len);
break; if(--num_spans == 0) break;
++span_aa; ++span_aa;
} }
} }
@ -607,7 +637,11 @@ void render_scanlines_compound(Rasterizer& ras,
len = span_aa->len; len = span_aa->len;
colors = mix_buffer + span_aa->x - min_x; colors = mix_buffer + span_aa->x - min_x;
cspan = color_span; cspan = color_span;
sh.generate_span(cspan, span_aa->x, sl_aa.y(), len, style); sh.generate_span(cspan,
span_aa->x,
sl_aa.y(),
len,
style);
covers = span_aa->covers; covers = span_aa->covers;
do do
{ {
@ -622,9 +656,9 @@ void render_scanlines_compound(Rasterizer& ras,
++cspan; ++cspan;
++colors; ++colors;
++covers; ++covers;
} while (--len); }
if (--num_spans == 0) while(--len);
break; if(--num_spans == 0) break;
++span_aa; ++span_aa;
} }
} }
@ -643,8 +677,7 @@ void render_scanlines_compound(Rasterizer& ras,
mix_buffer + span_bin->x - min_x, mix_buffer + span_bin->x - min_x,
0, 0,
cover_full); cover_full);
if (--num_spans == 0) if(--num_spans == 0) break;
break;
++span_bin; ++span_bin;
} }
} // if(ras.sweep_scanline(sl_bin, -1)) } // if(ras.sweep_scanline(sl_bin, -1))
@ -654,7 +687,11 @@ void render_scanlines_compound(Rasterizer& ras,
} }
//=======================================render_scanlines_compound_layered //=======================================render_scanlines_compound_layered
template<class Rasterizer, class ScanlineAA, class BaseRenderer, class SpanAllocator, class StyleHandler> template<class Rasterizer,
class ScanlineAA,
class BaseRenderer,
class SpanAllocator,
class StyleHandler>
void render_scanlines_compound_layered(Rasterizer& ras, void render_scanlines_compound_layered(Rasterizer& ras,
ScanlineAA& sl_aa, ScanlineAA& sl_aa,
BaseRenderer& ren, BaseRenderer& ren,
@ -701,11 +738,18 @@ void render_scanlines_compound_layered(Rasterizer& ras,
for(;;) for(;;)
{ {
len = span_aa->len; len = span_aa->len;
sh.generate_span(color_span, span_aa->x, sl_aa.y(), len, style); sh.generate_span(color_span,
span_aa->x,
sl_aa.y(),
len,
style);
ren.blend_color_hspan(span_aa->x, sl_aa.y(), span_aa->len, color_span, span_aa->covers); ren.blend_color_hspan(span_aa->x,
if (--num_spans == 0) sl_aa.y(),
break; span_aa->len,
color_span,
span_aa->covers);
if(--num_spans == 0) break;
++span_aa; ++span_aa;
} }
} }
@ -718,9 +762,13 @@ void render_scanlines_compound_layered(Rasterizer& ras,
if(sl_len) if(sl_len)
{ {
memset(mix_buffer + sl_start - min_x, 0, sl_len * sizeof(color_type)); memset(mix_buffer + sl_start - min_x,
0,
sl_len * sizeof(color_type));
memset(cover_buffer + sl_start - min_x, 0, sl_len * sizeof(cover_type)); memset(cover_buffer + sl_start - min_x,
0,
sl_len * sizeof(cover_type));
int sl_y = 0x7FFFFFFF; int sl_y = 0x7FFFFFFF;
unsigned i; unsigned i;
@ -765,9 +813,9 @@ void render_scanlines_compound_layered(Rasterizer& ras,
++colors; ++colors;
++src_covers; ++src_covers;
++dst_covers; ++dst_covers;
} while (--len); }
if (--num_spans == 0) while(--len);
break; if(--num_spans == 0) break;
++span_aa; ++span_aa;
} }
} }
@ -780,7 +828,11 @@ void render_scanlines_compound_layered(Rasterizer& ras,
len = span_aa->len; len = span_aa->len;
colors = mix_buffer + span_aa->x - min_x; colors = mix_buffer + span_aa->x - min_x;
cspan = color_span; cspan = color_span;
sh.generate_span(cspan, span_aa->x, sl_aa.y(), len, style); sh.generate_span(cspan,
span_aa->x,
sl_aa.y(),
len,
style);
src_covers = span_aa->covers; src_covers = span_aa->covers;
dst_covers = cover_buffer + span_aa->x - min_x; dst_covers = cover_buffer + span_aa->x - min_x;
do do
@ -799,21 +851,27 @@ void render_scanlines_compound_layered(Rasterizer& ras,
++colors; ++colors;
++src_covers; ++src_covers;
++dst_covers; ++dst_covers;
} while (--len); }
if (--num_spans == 0) while(--len);
break; if(--num_spans == 0) break;
++span_aa; ++span_aa;
} }
} }
} }
} }
ren.blend_color_hspan(sl_start, sl_y, sl_len, mix_buffer + sl_start - min_x, 0, cover_full); ren.blend_color_hspan(sl_start,
sl_y,
sl_len,
mix_buffer + sl_start - min_x,
0,
cover_full);
} //if(sl_len) } //if(sl_len)
} //if(num_styles == 1) ... else } //if(num_styles == 1) ... else
} //while((num_styles = ras.sweep_styles()) > 0) } //while((num_styles = ras.sweep_styles()) > 0)
} //if(ras.rewind_scanlines()) } //if(ras.rewind_scanlines())
} }
} // namespace agg
}
#endif #endif

View file

@ -22,35 +22,37 @@
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//===========================================================row_accessor //===========================================================row_accessor
template<class T> template<class T> class row_accessor
class row_accessor
{ {
public: public:
typedef const_row_info<T> row_data; typedef const_row_info<T> row_data;
//------------------------------------------------------------------- //-------------------------------------------------------------------
row_accessor() row_accessor() :
: m_buf(0) m_buf(0),
, m_start(0) m_start(0),
, m_width(0) m_width(0),
, m_height(0) m_height(0),
, m_stride(0) m_stride(0)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
row_accessor(T* buf, unsigned width, unsigned height, int stride) row_accessor(T* buf, unsigned width, unsigned height, int stride) :
: m_buf(0) m_buf(0),
, m_start(0) m_start(0),
, m_width(0) m_width(0),
, m_height(0) m_height(0),
, m_stride(0) m_stride(0)
{ {
attach(buf, width, height, stride); attach(buf, width, height, stride);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void attach(T* buf, unsigned width, unsigned height, int stride) void attach(T* buf, unsigned width, unsigned height, int stride)
{ {
@ -70,25 +72,32 @@ class row_accessor
AGG_INLINE unsigned width() const { return m_width; } AGG_INLINE unsigned width() const { return m_width; }
AGG_INLINE unsigned height() const { return m_height; } AGG_INLINE unsigned height() const { return m_height; }
AGG_INLINE int stride() const { return m_stride; } AGG_INLINE int stride() const { return m_stride; }
AGG_INLINE unsigned stride_abs() const { return (m_stride < 0) ? unsigned(-m_stride) : unsigned(m_stride); } AGG_INLINE unsigned stride_abs() const
{
return (m_stride < 0) ? unsigned(-m_stride) : unsigned(m_stride);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE T* row_ptr(int, int y, unsigned) { return m_start + y * m_stride; } AGG_INLINE T* row_ptr(int, int y, unsigned)
{
return m_start + y * m_stride;
}
AGG_INLINE T* row_ptr(int y) { return m_start + y * m_stride; } AGG_INLINE T* row_ptr(int y) { return m_start + y * m_stride; }
AGG_INLINE const T* row_ptr(int y) const { return m_start + y * m_stride; } AGG_INLINE const T* row_ptr(int y) const { return m_start + y * m_stride; }
AGG_INLINE row_data row(int y) const { return row_data(0, m_width - 1, row_ptr(y)); } AGG_INLINE row_data row (int y) const
{
return row_data(0, m_width-1, row_ptr(y));
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class RenBuf> template<class RenBuf>
void copy_from(const RenBuf& src) void copy_from(const RenBuf& src)
{ {
unsigned h = height(); unsigned h = height();
if (src.height() < h) if(src.height() < h) h = src.height();
h = src.height();
unsigned l = stride_abs(); unsigned l = stride_abs();
if (src.stride_abs() < l) if(src.stride_abs() < l) l = src.stride_abs();
l = src.stride_abs();
l *= sizeof(T); l *= sizeof(T);
@ -126,29 +135,32 @@ class row_accessor
int m_stride; // Number of bytes per row. Can be < 0 int m_stride; // Number of bytes per row. Can be < 0
}; };
//==========================================================row_ptr_cache //==========================================================row_ptr_cache
template<class T> template<class T> class row_ptr_cache
class row_ptr_cache
{ {
public: public:
typedef const_row_info<T> row_data; typedef const_row_info<T> row_data;
//------------------------------------------------------------------- //-------------------------------------------------------------------
row_ptr_cache() row_ptr_cache() :
: m_buf(0) m_buf(0),
, m_rows() m_rows(),
, m_width(0) m_width(0),
, m_height(0) m_height(0),
, m_stride(0) m_stride(0)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
row_ptr_cache(T* buf, unsigned width, unsigned height, int stride) row_ptr_cache(T* buf, unsigned width, unsigned height, int stride) :
: m_buf(0) m_buf(0),
, m_rows() m_rows(),
, m_width(0) m_width(0),
, m_height(0) m_height(0),
, m_stride(0) m_stride(0)
{ {
attach(buf, width, height, stride); attach(buf, width, height, stride);
} }
@ -192,13 +204,22 @@ class row_ptr_cache
AGG_INLINE unsigned width() const { return m_width; } AGG_INLINE unsigned width() const { return m_width; }
AGG_INLINE unsigned height() const { return m_height; } AGG_INLINE unsigned height() const { return m_height; }
AGG_INLINE int stride() const { return m_stride; } AGG_INLINE int stride() const { return m_stride; }
AGG_INLINE unsigned stride_abs() const { return (m_stride < 0) ? unsigned(-m_stride) : unsigned(m_stride); } AGG_INLINE unsigned stride_abs() const
{
return (m_stride < 0) ? unsigned(-m_stride) : unsigned(m_stride);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
AGG_INLINE T* row_ptr(int, int y, unsigned) { return m_rows[y]; } AGG_INLINE T* row_ptr(int, int y, unsigned)
{
return m_rows[y];
}
AGG_INLINE T* row_ptr(int y) { return m_rows[y]; } AGG_INLINE T* row_ptr(int y) { return m_rows[y]; }
AGG_INLINE const T* row_ptr(int y) const { return m_rows[y]; } AGG_INLINE const T* row_ptr(int y) const { return m_rows[y]; }
AGG_INLINE row_data row(int y) const { return row_data(0, m_width - 1, m_rows[y]); } AGG_INLINE row_data row (int y) const
{
return row_data(0, m_width-1, m_rows[y]);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
T const* const* rows() const { return &m_rows[0]; } T const* const* rows() const { return &m_rows[0]; }
@ -208,12 +229,10 @@ class row_ptr_cache
void copy_from(const RenBuf& src) void copy_from(const RenBuf& src)
{ {
unsigned h = height(); unsigned h = height();
if (src.height() < h) if(src.height() < h) h = src.height();
h = src.height();
unsigned l = stride_abs(); unsigned l = stride_abs();
if (src.stride_abs() < l) if(src.stride_abs() < l) l = src.stride_abs();
l = src.stride_abs();
l *= sizeof(T); l *= sizeof(T);
@ -251,6 +270,9 @@ class row_ptr_cache
int m_stride; // Number of bytes per row. Can be < 0 int m_stride; // Number of bytes per row. Can be < 0
}; };
//========================================================rendering_buffer //========================================================rendering_buffer
// //
// The definition of the main type for accessing the rows in the frame // The definition of the main type for accessing the rows in the frame
@ -277,6 +299,7 @@ typedef row_ptr_cache<int8u> rendering_buffer;
//typedef row_accessor<int8u> rendering_buffer; //typedef row_accessor<int8u> rendering_buffer;
#endif #endif
} // namespace agg }
#endif #endif

View file

@ -22,7 +22,8 @@
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//===============================================rendering_buffer_dynarow //===============================================rendering_buffer_dynarow
// Rendering buffer class with dynamic allocation of the rows. // Rendering buffer class with dynamic allocation of the rows.
@ -37,23 +38,28 @@ class rendering_buffer_dynarow
typedef row_info<int8u> row_data; typedef row_info<int8u> row_data;
//------------------------------------------------------------------- //-------------------------------------------------------------------
~rendering_buffer_dynarow() { init(0, 0, 0); } ~rendering_buffer_dynarow()
{
init(0,0,0);
}
//------------------------------------------------------------------- //-------------------------------------------------------------------
rendering_buffer_dynarow() rendering_buffer_dynarow() :
: m_rows() m_rows(),
, m_width(0) m_width(0),
, m_height(0) m_height(0),
, m_byte_width(0) m_byte_width(0)
{} {
}
// Allocate and clear the buffer // Allocate and clear the buffer
//-------------------------------------------------------------------- //--------------------------------------------------------------------
rendering_buffer_dynarow(unsigned width, unsigned height, unsigned byte_width) rendering_buffer_dynarow(unsigned width, unsigned height,
: m_rows(height) unsigned byte_width) :
, m_width(width) m_rows(height),
, m_height(height) m_width(width),
, m_byte_width(byte_width) m_height(height),
m_byte_width(byte_width)
{ {
memset(&m_rows[0], 0, sizeof(row_data) * height); memset(&m_rows[0], 0, sizeof(row_data) * height);
} }
@ -91,14 +97,8 @@ class rendering_buffer_dynarow
int x2 = x + len - 1; int x2 = x + len - 1;
if(r->ptr) if(r->ptr)
{ {
if (x < r->x1) if(x < r->x1) { r->x1 = x; }
{ if(x2 > r->x2) { r->x2 = x2; }
r->x1 = x;
}
if (x2 > r->x2)
{
r->x2 = x2;
}
} }
else else
{ {
@ -130,6 +130,8 @@ class rendering_buffer_dynarow
unsigned m_byte_width; // Width in bytes unsigned m_byte_width; // Width in bytes
}; };
} // namespace agg
}
#endif #endif

View file

@ -23,7 +23,8 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_arc.h" #include "agg_arc.h"
namespace agg { namespace agg
{
//------------------------------------------------------------rounded_rect //------------------------------------------------------------rounded_rect
// //
// See Implemantation agg_rounded_rect.cpp // See Implemantation agg_rounded_rect.cpp
@ -38,7 +39,8 @@ class rounded_rect
void radius(double r); void radius(double r);
void radius(double rx, double ry); void radius(double rx, double ry);
void radius(double rx_bottom, double ry_bottom, double rx_top, double ry_top); void radius(double rx_bottom, double ry_bottom, double rx_top, double ry_top);
void radius(double rx1, double ry1, double rx2, double ry2, double rx3, double ry3, double rx4, double ry4); void radius(double rx1, double ry1, double rx2, double ry2,
double rx3, double ry3, double rx4, double ry4);
void normalize_radius(); void normalize_radius();
void approximation_scale(double s) { m_arc.approximation_scale(s); } void approximation_scale(double s) { m_arc.approximation_scale(s); }
@ -64,6 +66,7 @@ class rounded_rect
arc m_arc; arc m_arc;
}; };
} // namespace agg }
#endif #endif

View file

@ -30,7 +30,8 @@
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//=============================================================scanline_bin //=============================================================scanline_bin
// //
@ -53,11 +54,12 @@ class scanline_bin
typedef const span* const_iterator; typedef const span* const_iterator;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
scanline_bin() scanline_bin() :
: m_last_x(0x7FFFFFF0) m_last_x(0x7FFFFFF0),
, m_spans() m_spans(),
, m_cur_span(0) m_cur_span(0)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset(int min_x, int max_x) void reset(int min_x, int max_x)
@ -104,10 +106,16 @@ class scanline_bin
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void add_cells(int x, unsigned len, const void*) { add_span(x, len, 0); } void add_cells(int x, unsigned len, const void*)
{
add_span(x, len, 0);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int y) { m_y = y; } void finalize(int y)
{
m_y = y;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_spans() void reset_spans()
@ -131,6 +139,11 @@ class scanline_bin
span* m_cur_span; span* m_cur_span;
}; };
//===========================================================scanline32_bin //===========================================================scanline32_bin
class scanline32_bin class scanline32_bin
{ {
@ -141,23 +154,21 @@ class scanline32_bin
struct span struct span
{ {
span() {} span() {}
span(coord_type x_, coord_type len_) span(coord_type x_, coord_type len_) : x(x_), len(len_) {}
: x(x_)
, len(len_)
{}
coord_type x; coord_type x;
coord_type len; coord_type len;
}; };
typedef pod_bvector<span, 4> span_array_type; typedef pod_bvector<span, 4> span_array_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
class const_iterator class const_iterator
{ {
public: public:
const_iterator(const span_array_type& spans) const_iterator(const span_array_type& spans) :
: m_spans(spans) m_spans(spans),
, m_span_idx(0) m_span_idx(0)
{} {}
const span& operator*() const { return m_spans[m_span_idx]; } const span& operator*() const { return m_spans[m_span_idx]; }
@ -170,11 +181,9 @@ class scanline32_bin
unsigned m_span_idx; unsigned m_span_idx;
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
scanline32_bin() scanline32_bin() : m_max_len(0), m_last_x(0x7FFFFFF0) {}
: m_max_len(0)
, m_last_x(0x7FFFFFF0)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset(int, int) void reset(int, int)
@ -212,10 +221,16 @@ class scanline32_bin
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void add_cells(int x, unsigned len, const void*) { add_span(x, len, 0); } void add_cells(int x, unsigned len, const void*)
{
add_span(x, len, 0);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int y) { m_y = y; } void finalize(int y)
{
m_y = y;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_spans() void reset_spans()
@ -239,6 +254,11 @@ class scanline32_bin
span_array_type m_spans; span_array_type m_spans;
}; };
} // namespace agg
}
#endif #endif

File diff suppressed because it is too large Load diff

View file

@ -29,7 +29,8 @@
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//=============================================================scanline_p8 //=============================================================scanline_p8
// //
@ -56,13 +57,14 @@ class scanline_p8
typedef span* iterator; typedef span* iterator;
typedef const span* const_iterator; typedef const span* const_iterator;
scanline_p8() scanline_p8() :
: m_last_x(0x7FFFFFF0) m_last_x(0x7FFFFFF0),
, m_covers() m_covers(),
, m_cover_ptr(0) m_cover_ptr(0),
, m_spans() m_spans(),
, m_cur_span(0) m_cur_span(0)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset(int min_x, int max_x) void reset(int min_x, int max_x)
@ -120,7 +122,9 @@ class scanline_p8
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void add_span(int x, unsigned len, unsigned cover) void add_span(int x, unsigned len, unsigned cover)
{ {
if (x == m_last_x + 1 && m_cur_span->len < 0 && cover == *m_cur_span->covers) if(x == m_last_x+1 &&
m_cur_span->len < 0 &&
cover == *m_cur_span->covers)
{ {
m_cur_span->len -= (int16)len; m_cur_span->len -= (int16)len;
} }
@ -136,7 +140,10 @@ class scanline_p8
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int y) { m_y = y; } void finalize(int y)
{
m_y = y;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_spans() void reset_spans()
@ -164,6 +171,13 @@ class scanline_p8
span* m_cur_span; span* m_cur_span;
}; };
//==========================================================scanline32_p8 //==========================================================scanline32_p8
class scanline32_p8 class scanline32_p8
{ {
@ -175,11 +189,8 @@ class scanline32_p8
struct span struct span
{ {
span() {} span() {}
span(coord_type x_, coord_type len_, const cover_type* covers_) span(coord_type x_, coord_type len_, const cover_type* covers_) :
: x(x_) x(x_), len(len_), covers(covers_) {}
, len(len_)
, covers(covers_)
{}
coord_type x; coord_type x;
coord_type len; // If negative, it's a solid span, covers is valid coord_type len; // If negative, it's a solid span, covers is valid
@ -187,13 +198,14 @@ class scanline32_p8
}; };
typedef pod_bvector<span, 4> span_array_type; typedef pod_bvector<span, 4> span_array_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
class const_iterator class const_iterator
{ {
public: public:
const_iterator(const span_array_type& spans) const_iterator(const span_array_type& spans) :
: m_spans(spans) m_spans(spans),
, m_span_idx(0) m_span_idx(0)
{} {}
const span& operator*() const { return m_spans[m_span_idx]; } const span& operator*() const { return m_spans[m_span_idx]; }
@ -207,12 +219,13 @@ class scanline32_p8
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
scanline32_p8() scanline32_p8() :
: m_max_len(0) m_max_len(0),
, m_last_x(0x7FFFFFF0) m_last_x(0x7FFFFFF0),
, m_covers() m_covers(),
, m_cover_ptr(0) m_cover_ptr(0)
{} {
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset(int min_x, int max_x) void reset(int min_x, int max_x)
@ -262,7 +275,10 @@ class scanline32_p8
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void add_span(int x, unsigned len, unsigned cover) void add_span(int x, unsigned len, unsigned cover)
{ {
if (x == m_last_x + 1 && m_spans.size() && m_spans.last().len < 0 && cover == *m_spans.last().covers) if(x == m_last_x+1 &&
m_spans.size() &&
m_spans.last().len < 0 &&
cover == *m_spans.last().covers)
{ {
m_spans.last().len -= coord_type(len); m_spans.last().len -= coord_type(len);
} }
@ -275,7 +291,10 @@ class scanline32_p8
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int y) { m_y = y; } void finalize(int y)
{
m_y = y;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_spans() void reset_spans()
@ -302,6 +321,9 @@ class scanline32_p8
span_array_type m_spans; span_array_type m_spans;
}; };
} // namespace agg
}
#endif #endif

View file

@ -29,11 +29,12 @@
#include <cmath> #include <cmath>
#include "agg_array.h" #include "agg_array.h"
namespace agg {
namespace agg
{
//----------------------------------------------scanline_cell_storage //----------------------------------------------scanline_cell_storage
template<class T> template<class T> class scanline_cell_storage
class scanline_cell_storage
{ {
struct extra_span struct extra_span
{ {
@ -45,25 +46,30 @@ class scanline_cell_storage
typedef T value_type; typedef T value_type;
//--------------------------------------------------------------- //---------------------------------------------------------------
~scanline_cell_storage() { remove_all(); } ~scanline_cell_storage()
{
remove_all();
}
//--------------------------------------------------------------- //---------------------------------------------------------------
scanline_cell_storage() scanline_cell_storage() :
: m_cells(128 - 2) m_cells(128-2),
, m_extra_storage() m_extra_storage()
{} {}
// Copying // Copying
//--------------------------------------------------------------- //---------------------------------------------------------------
scanline_cell_storage(const scanline_cell_storage<T>& v) scanline_cell_storage(const scanline_cell_storage<T>& v) :
: m_cells(v.m_cells) m_cells(v.m_cells),
, m_extra_storage() m_extra_storage()
{ {
copy_extra_storage(v); copy_extra_storage(v);
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
const scanline_cell_storage<T>& operator=(const scanline_cell_storage<T>& v) const scanline_cell_storage<T>&
operator = (const scanline_cell_storage<T>& v)
{ {
remove_all(); remove_all();
m_cells = v.m_cells; m_cells = v.m_cells;
@ -77,7 +83,8 @@ class scanline_cell_storage
int i; int i;
for(i = m_extra_storage.size()-1; i >= 0; --i) for(i = m_extra_storage.size()-1; i >= 0; --i)
{ {
pod_allocator<T>::deallocate(m_extra_storage[i].ptr, m_extra_storage[i].len); pod_allocator<T>::deallocate(m_extra_storage[i].ptr,
m_extra_storage[i].len);
} }
m_extra_storage.remove_all(); m_extra_storage.remove_all();
m_cells.remove_all(); m_cells.remove_all();
@ -106,13 +113,11 @@ class scanline_cell_storage
{ {
if(idx >= 0) if(idx >= 0)
{ {
if ((unsigned)idx >= m_cells.size()) if((unsigned)idx >= m_cells.size()) return 0;
return 0;
return &m_cells[(unsigned)idx]; return &m_cells[(unsigned)idx];
} }
unsigned i = unsigned(-idx - 1); unsigned i = unsigned(-idx - 1);
if (i >= m_extra_storage.size()) if(i >= m_extra_storage.size()) return 0;
return 0;
return m_extra_storage[i].ptr; return m_extra_storage[i].ptr;
} }
@ -121,13 +126,11 @@ class scanline_cell_storage
{ {
if(idx >= 0) if(idx >= 0)
{ {
if ((unsigned)idx >= m_cells.size()) if((unsigned)idx >= m_cells.size()) return 0;
return 0;
return &m_cells[(unsigned)idx]; return &m_cells[(unsigned)idx];
} }
unsigned i = unsigned(-idx - 1); unsigned i = unsigned(-idx - 1);
if (i >= m_extra_storage.size()) if(i >= m_extra_storage.size()) return 0;
return 0;
return m_extra_storage[i].ptr; return m_extra_storage[i].ptr;
} }
@ -150,9 +153,13 @@ class scanline_cell_storage
pod_bvector<extra_span, 6> m_extra_storage; pod_bvector<extra_span, 6> m_extra_storage;
}; };
//-----------------------------------------------scanline_storage_aa //-----------------------------------------------scanline_storage_aa
template<class T> template<class T> class scanline_storage_aa
class scanline_storage_aa
{ {
public: public:
typedef T cover_type; typedef T cover_type;
@ -173,6 +180,7 @@ class scanline_storage_aa
unsigned start_span; unsigned start_span;
}; };
//--------------------------------------------------------------- //---------------------------------------------------------------
class embedded_scanline class embedded_scanline
{ {
@ -189,12 +197,10 @@ class scanline_storage_aa
const T* covers; const T* covers;
}; };
const_iterator() const_iterator() : m_storage(0) {}
: m_storage(0) const_iterator(const embedded_scanline& sl) :
{} m_storage(sl.m_storage),
const_iterator(const embedded_scanline& sl) m_span_idx(sl.m_scanline.start_span)
: m_storage(sl.m_storage)
, m_span_idx(sl.m_scanline.start_span)
{ {
init_span(); init_span();
} }
@ -224,9 +230,10 @@ class scanline_storage_aa
friend class const_iterator; friend class const_iterator;
//----------------------------------------------------------- //-----------------------------------------------------------
embedded_scanline(const scanline_storage_aa& storage) embedded_scanline(const scanline_storage_aa& storage) :
: m_storage(&storage) m_storage(&storage)
{ {
init(0); init(0);
} }
@ -250,17 +257,17 @@ class scanline_storage_aa
unsigned m_scanline_idx; unsigned m_scanline_idx;
}; };
//--------------------------------------------------------------- //---------------------------------------------------------------
scanline_storage_aa() scanline_storage_aa() :
: m_covers() m_covers(),
, m_spans(256 - 2) m_spans(256-2), // Block increment size
, // Block increment size m_scanlines(),
m_scanlines() m_min_x( 0x7FFFFFFF),
, m_min_x(0x7FFFFFFF) m_min_y( 0x7FFFFFFF),
, m_min_y(0x7FFFFFFF) m_max_x(-0x7FFFFFFF),
, m_max_x(-0x7FFFFFFF) m_max_y(-0x7FFFFFFF),
, m_max_y(-0x7FFFFFFF) m_cur_scanline(0)
, m_cur_scanline(0)
{ {
m_fake_scanline.y = 0; m_fake_scanline.y = 0;
m_fake_scanline.num_spans = 0; m_fake_scanline.num_spans = 0;
@ -285,16 +292,13 @@ class scanline_storage_aa
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
template<class Scanline> template<class Scanline> void render(const Scanline& sl)
void render(const Scanline& sl)
{ {
scanline_data sl_this; scanline_data sl_this;
int y = sl.y(); int y = sl.y();
if (y < m_min_y) if(y < m_min_y) m_min_y = y;
m_min_y = y; if(y > m_max_y) m_max_y = y;
if (y > m_max_y)
m_max_y = y;
sl_this.y = y; sl_this.y = y;
sl_this.num_spans = sl.num_spans(); sl_this.num_spans = sl.num_spans();
@ -309,21 +313,21 @@ class scanline_storage_aa
sp.x = span_iterator->x; sp.x = span_iterator->x;
sp.len = span_iterator->len; sp.len = span_iterator->len;
int len = std::abs(int(sp.len)); int len = std::abs(int(sp.len));
sp.covers_id = m_covers.add_cells(span_iterator->covers, unsigned(len)); sp.covers_id =
m_covers.add_cells(span_iterator->covers,
unsigned(len));
m_spans.add(sp); m_spans.add(sp);
int x1 = sp.x; int x1 = sp.x;
int x2 = sp.x + len - 1; int x2 = sp.x + len - 1;
if (x1 < m_min_x) if(x1 < m_min_x) m_min_x = x1;
m_min_x = x1; if(x2 > m_max_x) m_max_x = x2;
if (x2 > m_max_x) if(--num_spans == 0) break;
m_max_x = x2;
if (--num_spans == 0)
break;
++span_iterator; ++span_iterator;
} }
m_scanlines.add(sl_this); m_scanlines.add(sl_this);
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
// Iterate scanlines interface // Iterate scanlines interface
int min_x() const { return m_min_x; } int min_x() const { return m_min_x; }
@ -338,15 +342,14 @@ class scanline_storage_aa
return m_scanlines.size() > 0; return m_scanlines.size() > 0;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
template<class Scanline> template<class Scanline> bool sweep_scanline(Scanline& sl)
bool sweep_scanline(Scanline& sl)
{ {
sl.reset_spans(); sl.reset_spans();
for(;;) for(;;)
{ {
if (m_cur_scanline >= m_scanlines.size()) if(m_cur_scanline >= m_scanlines.size()) return false;
return false;
const scanline_data& sl_this = m_scanlines[m_cur_scanline]; const scanline_data& sl_this = m_scanlines[m_cur_scanline];
unsigned num_spans = sl_this.num_spans; unsigned num_spans = sl_this.num_spans;
@ -363,7 +366,8 @@ class scanline_storage_aa
{ {
sl.add_cells(sp.x, sp.len, covers); sl.add_cells(sp.x, sp.len, covers);
} }
} while (--num_spans); }
while(--num_spans);
++m_cur_scanline; ++m_cur_scanline;
if(sl.num_spans()) if(sl.num_spans())
{ {
@ -374,17 +378,18 @@ class scanline_storage_aa
return true; return true;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
// Specialization for embedded_scanline // Specialization for embedded_scanline
bool sweep_scanline(embedded_scanline& sl) bool sweep_scanline(embedded_scanline& sl)
{ {
do do
{ {
if (m_cur_scanline >= m_scanlines.size()) if(m_cur_scanline >= m_scanlines.size()) return false;
return false;
sl.init(m_cur_scanline); sl.init(m_cur_scanline);
++m_cur_scanline; ++m_cur_scanline;
} while (sl.num_spans() == 0); }
while(sl.num_spans() == 0);
return true; return true;
} }
@ -415,11 +420,13 @@ class scanline_storage_aa
{ {
size += sizeof(T) * unsigned(sp.len); // covers size += sizeof(T) * unsigned(sp.len); // covers
} }
} while (--num_spans); }
while(--num_spans);
} }
return size; return size;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
static void write_int32(int8u* dst, int32 val) static void write_int32(int8u* dst, int32 val)
{ {
@ -429,6 +436,7 @@ class scanline_storage_aa
dst[3] = ((const int8u*)&val)[3]; dst[3] = ((const int8u*)&val)[3];
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
void serialize(int8u* data) const void serialize(int8u* data) const
{ {
@ -479,11 +487,13 @@ class scanline_storage_aa
memcpy(data, covers, unsigned(sp.len) * sizeof(T)); memcpy(data, covers, unsigned(sp.len) * sizeof(T));
data += sizeof(T) * unsigned(sp.len); data += sizeof(T) * unsigned(sp.len);
} }
} while (--num_spans); }
while(--num_spans);
write_int32(size_ptr, int32(unsigned(data - size_ptr))); write_int32(size_ptr, int32(unsigned(data - size_ptr)));
} }
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
const scanline_data& scanline_by_index(unsigned i) const const scanline_data& scanline_by_index(unsigned i) const
{ {
@ -491,10 +501,16 @@ class scanline_storage_aa
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
const span_data& span_by_index(unsigned i) const { return (i < m_spans.size()) ? m_spans[i] : m_fake_span; } const span_data& span_by_index(unsigned i) const
{
return (i < m_spans.size()) ? m_spans[i] : m_fake_span;
}
//--------------------------------------------------------------- //---------------------------------------------------------------
const T* covers_by_index(int i) const { return m_covers[i]; } const T* covers_by_index(int i) const
{
return m_covers[i];
}
private: private:
scanline_cell_storage<T> m_covers; scanline_cell_storage<T> m_covers;
@ -509,13 +525,16 @@ class scanline_storage_aa
unsigned m_cur_scanline; unsigned m_cur_scanline;
}; };
typedef scanline_storage_aa<int8u> scanline_storage_aa8; //--------scanline_storage_aa8 typedef scanline_storage_aa<int8u> scanline_storage_aa8; //--------scanline_storage_aa8
typedef scanline_storage_aa<int16u> scanline_storage_aa16; //--------scanline_storage_aa16 typedef scanline_storage_aa<int16u> scanline_storage_aa16; //--------scanline_storage_aa16
typedef scanline_storage_aa<int32u> scanline_storage_aa32; //--------scanline_storage_aa32 typedef scanline_storage_aa<int32u> scanline_storage_aa32; //--------scanline_storage_aa32
//------------------------------------------serialized_scanlines_adaptor_aa //------------------------------------------serialized_scanlines_adaptor_aa
template<class T> template<class T> class serialized_scanlines_adaptor_aa
class serialized_scanlines_adaptor_aa
{ {
public: public:
typedef T cover_type; typedef T cover_type;
@ -537,12 +556,10 @@ class serialized_scanlines_adaptor_aa
const T* covers; const T* covers;
}; };
const_iterator() const_iterator() : m_ptr(0) {}
: m_ptr(0) const_iterator(const embedded_scanline& sl) :
{} m_ptr(sl.m_ptr),
const_iterator(const embedded_scanline& sl) m_dx(sl.m_dx)
: m_ptr(sl.m_ptr)
, m_dx(sl.m_dx)
{ {
init_span(); init_span();
} }
@ -588,12 +605,9 @@ class serialized_scanlines_adaptor_aa
friend class const_iterator; friend class const_iterator;
//----------------------------------------------------------------- //-----------------------------------------------------------------
embedded_scanline() embedded_scanline() : m_ptr(0), m_y(0), m_num_spans(0) {}
: m_ptr(0)
, m_y(0)
, m_num_spans(0)
{}
//----------------------------------------------------------------- //-----------------------------------------------------------------
void reset(int, int) {} void reset(int, int) {}
@ -601,6 +615,7 @@ class serialized_scanlines_adaptor_aa
int y() const { return m_y; } int y() const { return m_y; }
const_iterator begin() const { return const_iterator(*this); } const_iterator begin() const { return const_iterator(*this); }
private: private:
//----------------------------------------------------------------- //-----------------------------------------------------------------
int read_int32() int read_int32()
@ -630,31 +645,34 @@ class serialized_scanlines_adaptor_aa
int m_dx; int m_dx;
}; };
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
serialized_scanlines_adaptor_aa() serialized_scanlines_adaptor_aa() :
: m_data(0) m_data(0),
, m_end(0) m_end(0),
, m_ptr(0) m_ptr(0),
, m_dx(0) m_dx(0),
, m_dy(0) m_dy(0),
, m_min_x(0x7FFFFFFF) m_min_x(0x7FFFFFFF),
, m_min_y(0x7FFFFFFF) m_min_y(0x7FFFFFFF),
, m_max_x(-0x7FFFFFFF) m_max_x(-0x7FFFFFFF),
, m_max_y(-0x7FFFFFFF) m_max_y(-0x7FFFFFFF)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
serialized_scanlines_adaptor_aa(const int8u* data, unsigned size, double dx, double dy) serialized_scanlines_adaptor_aa(const int8u* data, unsigned size,
: m_data(data) double dx, double dy) :
, m_end(data + size) m_data(data),
, m_ptr(data) m_end(data + size),
, m_dx(iround(dx)) m_ptr(data),
, m_dy(iround(dy)) m_dx(iround(dx)),
, m_min_x(0x7FFFFFFF) m_dy(iround(dy)),
, m_min_y(0x7FFFFFFF) m_min_x(0x7FFFFFFF),
, m_max_x(-0x7FFFFFFF) m_min_y(0x7FFFFFFF),
, m_max_y(-0x7FFFFFFF) m_max_x(-0x7FFFFFFF),
m_max_y(-0x7FFFFFFF)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -717,14 +735,12 @@ class serialized_scanlines_adaptor_aa
int max_y() const { return m_max_y; } int max_y() const { return m_max_y; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> bool sweep_scanline(Scanline& sl)
bool sweep_scanline(Scanline& sl)
{ {
sl.reset_spans(); sl.reset_spans();
for(;;) for(;;)
{ {
if (m_ptr >= m_end) if(m_ptr >= m_end) return false;
return false;
read_int32(); // Skip scanline size in bytes read_int32(); // Skip scanline size in bytes
int y = read_int32() + m_dy; int y = read_int32() + m_dy;
@ -745,7 +761,8 @@ class serialized_scanlines_adaptor_aa
sl.add_cells(x, len, m_ptr); sl.add_cells(x, len, m_ptr);
m_ptr += len * sizeof(T); m_ptr += len * sizeof(T);
} }
} while (--num_spans); }
while(--num_spans);
if(sl.num_spans()) if(sl.num_spans())
{ {
@ -756,19 +773,20 @@ class serialized_scanlines_adaptor_aa
return true; return true;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Specialization for embedded_scanline // Specialization for embedded_scanline
bool sweep_scanline(embedded_scanline& sl) bool sweep_scanline(embedded_scanline& sl)
{ {
do do
{ {
if (m_ptr >= m_end) if(m_ptr >= m_end) return false;
return false;
unsigned byte_size = read_int32u(); unsigned byte_size = read_int32u();
sl.init(m_ptr, m_dx, m_dy); sl.init(m_ptr, m_dx, m_dy);
m_ptr += byte_size - sizeof(int32); m_ptr += byte_size - sizeof(int32);
} while (sl.num_spans() == 0); }
while(sl.num_spans() == 0);
return true; return true;
} }
@ -784,12 +802,14 @@ class serialized_scanlines_adaptor_aa
int m_max_y; int m_max_y;
}; };
typedef serialized_scanlines_adaptor_aa<int8u> serialized_scanlines_adaptor_aa8; //----serialized_scanlines_adaptor_aa8
typedef serialized_scanlines_adaptor_aa<int16u>
serialized_scanlines_adaptor_aa16; //----serialized_scanlines_adaptor_aa16
typedef serialized_scanlines_adaptor_aa<int32u>
serialized_scanlines_adaptor_aa32; //----serialized_scanlines_adaptor_aa32
} // namespace agg
typedef serialized_scanlines_adaptor_aa<int8u> serialized_scanlines_adaptor_aa8; //----serialized_scanlines_adaptor_aa8
typedef serialized_scanlines_adaptor_aa<int16u> serialized_scanlines_adaptor_aa16; //----serialized_scanlines_adaptor_aa16
typedef serialized_scanlines_adaptor_aa<int32u> serialized_scanlines_adaptor_aa32; //----serialized_scanlines_adaptor_aa32
}
#endif #endif

View file

@ -21,6 +21,7 @@
// //
//---------------------------------------------------------------------------- //----------------------------------------------------------------------------
#ifndef AGG_SCANLINE_STORAGE_BIN_INCLUDED #ifndef AGG_SCANLINE_STORAGE_BIN_INCLUDED
#define AGG_SCANLINE_STORAGE_BIN_INCLUDED #define AGG_SCANLINE_STORAGE_BIN_INCLUDED
@ -29,7 +30,9 @@
#include <cmath> #include <cmath>
#include "agg_array.h" #include "agg_array.h"
namespace agg {
namespace agg
{
//-----------------------------------------------scanline_storage_bin //-----------------------------------------------scanline_storage_bin
class scanline_storage_bin class scanline_storage_bin
@ -50,6 +53,7 @@ class scanline_storage_bin
unsigned start_span; unsigned start_span;
}; };
//--------------------------------------------------------------- //---------------------------------------------------------------
class embedded_scanline class embedded_scanline
{ {
@ -59,12 +63,10 @@ class scanline_storage_bin
class const_iterator class const_iterator
{ {
public: public:
const_iterator() const_iterator() : m_storage(0) {}
: m_storage(0) const_iterator(const embedded_scanline& sl) :
{} m_storage(sl.m_storage),
const_iterator(const embedded_scanline& sl) m_span_idx(sl.m_scanline.start_span)
: m_storage(sl.m_storage)
, m_span_idx(sl.m_scanline.start_span)
{ {
m_span = m_storage->span_by_index(m_span_idx); m_span = m_storage->span_by_index(m_span_idx);
} }
@ -86,9 +88,10 @@ class scanline_storage_bin
friend class const_iterator; friend class const_iterator;
//----------------------------------------------------------- //-----------------------------------------------------------
embedded_scanline(const scanline_storage_bin& storage) embedded_scanline(const scanline_storage_bin& storage) :
: m_storage(&storage) m_storage(&storage)
{ {
setup(0); setup(0);
} }
@ -112,16 +115,16 @@ class scanline_storage_bin
unsigned m_scanline_idx; unsigned m_scanline_idx;
}; };
//--------------------------------------------------------------- //---------------------------------------------------------------
scanline_storage_bin() scanline_storage_bin() :
: m_spans(256 - 2) m_spans(256-2), // Block increment size
, // Block increment size m_scanlines(),
m_scanlines() m_min_x( 0x7FFFFFFF),
, m_min_x(0x7FFFFFFF) m_min_y( 0x7FFFFFFF),
, m_min_y(0x7FFFFFFF) m_max_x(-0x7FFFFFFF),
, m_max_x(-0x7FFFFFFF) m_max_y(-0x7FFFFFFF),
, m_max_y(-0x7FFFFFFF) m_cur_scanline(0)
, m_cur_scanline(0)
{ {
m_fake_scanline.y = 0; m_fake_scanline.y = 0;
m_fake_scanline.num_spans = 0; m_fake_scanline.num_spans = 0;
@ -144,16 +147,13 @@ class scanline_storage_bin
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
template<class Scanline> template<class Scanline> void render(const Scanline& sl)
void render(const Scanline& sl)
{ {
scanline_data sl_this; scanline_data sl_this;
int y = sl.y(); int y = sl.y();
if (y < m_min_y) if(y < m_min_y) m_min_y = y;
m_min_y = y; if(y > m_max_y) m_max_y = y;
if (y > m_max_y)
m_max_y = y;
sl_this.y = y; sl_this.y = y;
sl_this.num_spans = sl.num_spans(); sl_this.num_spans = sl.num_spans();
@ -169,17 +169,15 @@ class scanline_storage_bin
m_spans.add(sp); m_spans.add(sp);
int x1 = sp.x; int x1 = sp.x;
int x2 = sp.x + sp.len - 1; int x2 = sp.x + sp.len - 1;
if (x1 < m_min_x) if(x1 < m_min_x) m_min_x = x1;
m_min_x = x1; if(x2 > m_max_x) m_max_x = x2;
if (x2 > m_max_x) if(--num_spans == 0) break;
m_max_x = x2;
if (--num_spans == 0)
break;
++span_iterator; ++span_iterator;
} }
m_scanlines.add(sl_this); m_scanlines.add(sl_this);
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
// Iterate scanlines interface // Iterate scanlines interface
int min_x() const { return m_min_x; } int min_x() const { return m_min_x; }
@ -194,15 +192,14 @@ class scanline_storage_bin
return m_scanlines.size() > 0; return m_scanlines.size() > 0;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
template<class Scanline> template<class Scanline> bool sweep_scanline(Scanline& sl)
bool sweep_scanline(Scanline& sl)
{ {
sl.reset_spans(); sl.reset_spans();
for(;;) for(;;)
{ {
if (m_cur_scanline >= m_scanlines.size()) if(m_cur_scanline >= m_scanlines.size()) return false;
return false;
const scanline_data& sl_this = m_scanlines[m_cur_scanline]; const scanline_data& sl_this = m_scanlines[m_cur_scanline];
unsigned num_spans = sl_this.num_spans; unsigned num_spans = sl_this.num_spans;
@ -211,7 +208,8 @@ class scanline_storage_bin
{ {
const span_data& sp = m_spans[span_idx++]; const span_data& sp = m_spans[span_idx++];
sl.add_span(sp.x, sp.len, cover_full); sl.add_span(sp.x, sp.len, cover_full);
} while (--num_spans); }
while(--num_spans);
++m_cur_scanline; ++m_cur_scanline;
if(sl.num_spans()) if(sl.num_spans())
@ -223,20 +221,22 @@ class scanline_storage_bin
return true; return true;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
// Specialization for embedded_scanline // Specialization for embedded_scanline
bool sweep_scanline(embedded_scanline& sl) bool sweep_scanline(embedded_scanline& sl)
{ {
do do
{ {
if (m_cur_scanline >= m_scanlines.size()) if(m_cur_scanline >= m_scanlines.size()) return false;
return false;
sl.setup(m_cur_scanline); sl.setup(m_cur_scanline);
++m_cur_scanline; ++m_cur_scanline;
} while (sl.num_spans() == 0); }
while(sl.num_spans() == 0);
return true; return true;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
unsigned byte_size() const unsigned byte_size() const
{ {
@ -251,6 +251,7 @@ class scanline_storage_bin
return size; return size;
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
static void write_int32(int8u* dst, int32 val) static void write_int32(int8u* dst, int32 val)
{ {
@ -260,6 +261,7 @@ class scanline_storage_bin
dst[3] = ((const int8u*)&val)[3]; dst[3] = ((const int8u*)&val)[3];
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
void serialize(int8u* data) const void serialize(int8u* data) const
{ {
@ -295,10 +297,12 @@ class scanline_storage_bin
write_int32(data, sp.len); // len write_int32(data, sp.len); // len
data += sizeof(int32); data += sizeof(int32);
} while (--num_spans); }
while(--num_spans);
} }
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
const scanline_data& scanline_by_index(unsigned i) const const scanline_data& scanline_by_index(unsigned i) const
{ {
@ -306,7 +310,11 @@ class scanline_storage_bin
} }
//--------------------------------------------------------------- //---------------------------------------------------------------
const span_data& span_by_index(unsigned i) const { return (i < m_spans.size()) ? m_spans[i] : m_fake_span; } const span_data& span_by_index(unsigned i) const
{
return (i < m_spans.size()) ? m_spans[i] : m_fake_span;
}
private: private:
pod_bvector<span_data, 10> m_spans; pod_bvector<span_data, 10> m_spans;
@ -320,6 +328,18 @@ class scanline_storage_bin
unsigned m_cur_scanline; unsigned m_cur_scanline;
}; };
//---------------------------------------serialized_scanlines_adaptor_bin //---------------------------------------serialized_scanlines_adaptor_bin
class serialized_scanlines_adaptor_bin class serialized_scanlines_adaptor_bin
{ {
@ -341,12 +361,10 @@ class serialized_scanlines_adaptor_bin
int32 len; int32 len;
}; };
const_iterator() const_iterator() : m_ptr(0) {}
: m_ptr(0) const_iterator(const embedded_scanline& sl) :
{} m_ptr(sl.m_ptr),
const_iterator(const embedded_scanline& sl) m_dx(sl.m_dx)
: m_ptr(sl.m_ptr)
, m_dx(sl.m_dx)
{ {
m_span.x = read_int32() + m_dx; m_span.x = read_int32() + m_dx;
m_span.len = read_int32(); m_span.len = read_int32();
@ -379,12 +397,9 @@ class serialized_scanlines_adaptor_bin
friend class const_iterator; friend class const_iterator;
//---------------------------------------------------------------- //----------------------------------------------------------------
embedded_scanline() embedded_scanline() : m_ptr(0), m_y(0), m_num_spans(0) {}
: m_ptr(0)
, m_y(0)
, m_num_spans(0)
{}
//---------------------------------------------------------------- //----------------------------------------------------------------
void reset(int, int) {} void reset(int, int) {}
@ -392,6 +407,7 @@ class serialized_scanlines_adaptor_bin
int y() const { return m_y; } int y() const { return m_y; }
const_iterator begin() const { return const_iterator(*this); } const_iterator begin() const { return const_iterator(*this); }
private: private:
//---------------------------------------------------------------- //----------------------------------------------------------------
int read_int32() int read_int32()
@ -421,31 +437,34 @@ class serialized_scanlines_adaptor_bin
int m_dx; int m_dx;
}; };
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
serialized_scanlines_adaptor_bin() serialized_scanlines_adaptor_bin() :
: m_data(0) m_data(0),
, m_end(0) m_end(0),
, m_ptr(0) m_ptr(0),
, m_dx(0) m_dx(0),
, m_dy(0) m_dy(0),
, m_min_x(0x7FFFFFFF) m_min_x(0x7FFFFFFF),
, m_min_y(0x7FFFFFFF) m_min_y(0x7FFFFFFF),
, m_max_x(-0x7FFFFFFF) m_max_x(-0x7FFFFFFF),
, m_max_y(-0x7FFFFFFF) m_max_y(-0x7FFFFFFF)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
serialized_scanlines_adaptor_bin(const int8u* data, unsigned size, double dx, double dy) serialized_scanlines_adaptor_bin(const int8u* data, unsigned size,
: m_data(data) double dx, double dy) :
, m_end(data + size) m_data(data),
, m_ptr(data) m_end(data + size),
, m_dx(iround(dx)) m_ptr(data),
, m_dy(iround(dy)) m_dx(iround(dx)),
, m_min_x(0x7FFFFFFF) m_dy(iround(dy)),
, m_min_y(0x7FFFFFFF) m_min_x(0x7FFFFFFF),
, m_max_x(-0x7FFFFFFF) m_min_y(0x7FFFFFFF),
, m_max_y(-0x7FFFFFFF) m_max_x(-0x7FFFFFFF),
m_max_y(-0x7FFFFFFF)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -497,14 +516,12 @@ class serialized_scanlines_adaptor_bin
int max_y() const { return m_max_y; } int max_y() const { return m_max_y; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
template<class Scanline> template<class Scanline> bool sweep_scanline(Scanline& sl)
bool sweep_scanline(Scanline& sl)
{ {
sl.reset_spans(); sl.reset_spans();
for(;;) for(;;)
{ {
if (m_ptr >= m_end) if(m_ptr >= m_end) return false;
return false;
int y = read_int32() + m_dy; int y = read_int32() + m_dy;
unsigned num_spans = read_int32(); unsigned num_spans = read_int32();
@ -514,10 +531,10 @@ class serialized_scanlines_adaptor_bin
int x = read_int32() + m_dx; int x = read_int32() + m_dx;
int len = read_int32(); int len = read_int32();
if (len < 0) if(len < 0) len = -len;
len = -len;
sl.add_span(x, unsigned(len), cover_full); sl.add_span(x, unsigned(len), cover_full);
} while (--num_spans); }
while(--num_spans);
if(sl.num_spans()) if(sl.num_spans())
{ {
@ -528,14 +545,14 @@ class serialized_scanlines_adaptor_bin
return true; return true;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Specialization for embedded_scanline // Specialization for embedded_scanline
bool sweep_scanline(embedded_scanline& sl) bool sweep_scanline(embedded_scanline& sl)
{ {
do do
{ {
if (m_ptr >= m_end) if(m_ptr >= m_end) return false;
return false;
sl.init(m_ptr, m_dx, m_dy); sl.init(m_ptr, m_dx, m_dy);
@ -544,7 +561,8 @@ class serialized_scanlines_adaptor_bin
read_int32(); // Y read_int32(); // Y
int num_spans = read_int32(); // num_spans int num_spans = read_int32(); // num_spans
m_ptr += num_spans * sizeof(int32) * 2; m_ptr += num_spans * sizeof(int32) * 2;
} while (sl.num_spans() == 0); }
while(sl.num_spans() == 0);
return true; return true;
} }
@ -560,6 +578,9 @@ class serialized_scanlines_adaptor_bin
int m_max_y; int m_max_y;
}; };
} // namespace agg
}
#endif #endif

View file

@ -26,7 +26,8 @@
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//=============================================================scanline_u8 //=============================================================scanline_u8
// //
// Unpacked scanline container class // Unpacked scanline container class
@ -124,10 +125,10 @@ class scanline_u8
typedef const span* const_iterator; typedef const span* const_iterator;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
scanline_u8() scanline_u8() :
: m_min_x(0) m_min_x(0),
, m_last_x(0x7FFFFFF0) m_last_x(0x7FFFFFF0),
, m_cur_span(0) m_cur_span(0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -202,7 +203,10 @@ class scanline_u8
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int y) { m_y = y; } void finalize(int y)
{
m_y = y;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_spans() void reset_spans()
@ -230,6 +234,9 @@ class scanline_u8
span* m_cur_span; span* m_cur_span;
}; };
//==========================================================scanline_u8_am //==========================================================scanline_u8_am
// //
// The scanline container with alpha-masking // The scanline container with alpha-masking
@ -244,14 +251,8 @@ class scanline_u8_am : public scanline_u8
typedef base_type::cover_type cover_type; typedef base_type::cover_type cover_type;
typedef base_type::coord_type coord_type; typedef base_type::coord_type coord_type;
scanline_u8_am() scanline_u8_am() : base_type(), m_alpha_mask(0) {}
: base_type() scanline_u8_am(const AlphaMask& am) : base_type(), m_alpha_mask(&am) {}
, m_alpha_mask(0)
{}
scanline_u8_am(const AlphaMask& am)
: base_type()
, m_alpha_mask(&am)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int span_y) void finalize(int span_y)
@ -263,9 +264,13 @@ class scanline_u8_am : public scanline_u8
unsigned count = base_type::num_spans(); unsigned count = base_type::num_spans();
do do
{ {
m_alpha_mask->combine_hspan(span->x, base_type::y(), span->covers, span->len); m_alpha_mask->combine_hspan(span->x,
base_type::y(),
span->covers,
span->len);
++span; ++span;
} while (--count); }
while(--count);
} }
} }
@ -273,6 +278,9 @@ class scanline_u8_am : public scanline_u8
const AlphaMask* m_alpha_mask; const AlphaMask* m_alpha_mask;
}; };
//===========================================================scanline32_u8 //===========================================================scanline32_u8
class scanline32_u8 class scanline32_u8
{ {
@ -285,11 +293,8 @@ class scanline32_u8
struct span struct span
{ {
span() {} span() {}
span(coord_type x_, coord_type len_, cover_type* covers_) span(coord_type x_, coord_type len_, cover_type* covers_) :
: x(x_) x(x_), len(len_), covers(covers_) {}
, len(len_)
, covers(covers_)
{}
coord_type x; coord_type x;
coord_type len; coord_type len;
@ -302,9 +307,9 @@ class scanline32_u8
class const_iterator class const_iterator
{ {
public: public:
const_iterator(const span_array_type& spans) const_iterator(const span_array_type& spans) :
: m_spans(spans) m_spans(spans),
, m_span_idx(0) m_span_idx(0)
{} {}
const span& operator*() const { return m_spans[m_span_idx]; } const span& operator*() const { return m_spans[m_span_idx]; }
@ -321,9 +326,9 @@ class scanline32_u8
class iterator class iterator
{ {
public: public:
iterator(span_array_type& spans) iterator(span_array_type& spans) :
: m_spans(spans) m_spans(spans),
, m_span_idx(0) m_span_idx(0)
{} {}
span& operator*() { return m_spans[m_span_idx]; } span& operator*() { return m_spans[m_span_idx]; }
@ -336,11 +341,13 @@ class scanline32_u8
unsigned m_span_idx; unsigned m_span_idx;
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
scanline32_u8() scanline32_u8() :
: m_min_x(0) m_min_x(0),
, m_last_x(0x7FFFFFF0) m_last_x(0x7FFFFFF0),
, m_covers() m_covers()
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -383,7 +390,9 @@ class scanline32_u8
} }
else else
{ {
m_spans.add(span(coord_type(x + m_min_x), coord_type(len), &m_covers[x])); m_spans.add(span(coord_type(x + m_min_x),
coord_type(len),
&m_covers[x]));
} }
m_last_x = x + len - 1; m_last_x = x + len - 1;
} }
@ -399,13 +408,18 @@ class scanline32_u8
} }
else else
{ {
m_spans.add(span(coord_type(x + m_min_x), coord_type(len), &m_covers[x])); m_spans.add(span(coord_type(x + m_min_x),
coord_type(len),
&m_covers[x]));
} }
m_last_x = x + len - 1; m_last_x = x + len - 1;
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int y) { m_y = y; } void finalize(int y)
{
m_y = y;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void reset_spans() void reset_spans()
@ -432,6 +446,9 @@ class scanline32_u8
span_array_type m_spans; span_array_type m_spans;
}; };
//========================================================scanline32_u8_am //========================================================scanline32_u8_am
// //
// The scanline container with alpha-masking // The scanline container with alpha-masking
@ -447,14 +464,9 @@ class scanline32_u8_am : public scanline32_u8
typedef base_type::cover_type cover_type; typedef base_type::cover_type cover_type;
typedef base_type::coord_type coord_type; typedef base_type::coord_type coord_type;
scanline32_u8_am()
: base_type() scanline32_u8_am() : base_type(), m_alpha_mask(0) {}
, m_alpha_mask(0) scanline32_u8_am(const AlphaMask& am) : base_type(), m_alpha_mask(&am) {}
{}
scanline32_u8_am(const AlphaMask& am)
: base_type()
, m_alpha_mask(&am)
{}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void finalize(int span_y) void finalize(int span_y)
@ -466,9 +478,13 @@ class scanline32_u8_am : public scanline32_u8
unsigned count = base_type::num_spans(); unsigned count = base_type::num_spans();
do do
{ {
m_alpha_mask->combine_hspan(span->x, base_type::y(), span->covers, span->len); m_alpha_mask->combine_hspan(span->x,
base_type::y(),
span->covers,
span->len);
++span; ++span;
} while (--count); }
while(--count);
} }
} }
@ -476,6 +492,9 @@ class scanline32_u8_am : public scanline32_u8
const AlphaMask* m_alpha_mask; const AlphaMask* m_alpha_mask;
}; };
} // namespace agg
}
#endif #endif

View file

@ -19,7 +19,8 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_vertex_sequence.h" #include "agg_vertex_sequence.h"
namespace agg { namespace agg
{
//===========================================================shorten_path //===========================================================shorten_path
template<class VertexSequence> template<class VertexSequence>
@ -34,8 +35,7 @@ void shorten_path(VertexSequence& vs, double s, unsigned closed = 0)
while(n) while(n)
{ {
d = vs[n].dist; d = vs[n].dist;
if (d > s) if(d > s) break;
break;
vs.remove_last(); vs.remove_last();
s -= d; s -= d;
--n; --n;
@ -54,13 +54,13 @@ void shorten_path(VertexSequence& vs, double s, unsigned closed = 0)
double y = prev.y + (last.y - prev.y) * d; double y = prev.y + (last.y - prev.y) * d;
last.x = x; last.x = x;
last.y = y; last.y = y;
if (!prev(last)) if(!prev(last)) vs.remove_last();
vs.remove_last();
vs.close(closed != 0); vs.close(closed != 0);
} }
} }
} }
} // namespace agg
}
#endif #endif

View file

@ -22,11 +22,11 @@
#include <cmath> #include <cmath>
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//=============================================================swap_arrays //=============================================================swap_arrays
template<class T> template<class T> void swap_arrays(T* a1, T* a2, unsigned n)
void swap_arrays(T* a1, T* a2, unsigned n)
{ {
unsigned i; unsigned i;
for(i = 0; i < n; i++) for(i = 0; i < n; i++)
@ -37,6 +37,7 @@ void swap_arrays(T* a1, T* a2, unsigned n)
} }
} }
//============================================================matrix_pivot //============================================================matrix_pivot
template<unsigned Rows, unsigned Cols> template<unsigned Rows, unsigned Cols>
struct matrix_pivot struct matrix_pivot
@ -71,12 +72,15 @@ struct matrix_pivot
} }
}; };
//===============================================================simul_eq //===============================================================simul_eq
template<unsigned Size, unsigned RightCols> template<unsigned Size, unsigned RightCols>
struct simul_eq struct simul_eq
{ {
static bool static bool solve(const double left[Size][Size],
solve(const double left[Size][Size], const double right[Size][RightCols], double result[Size][RightCols]) const double right[Size][RightCols],
double result[Size][RightCols])
{ {
unsigned i, j, k; unsigned i, j, k;
double a1; double a1;
@ -119,6 +123,7 @@ struct simul_eq
} }
} }
for(k = 0; k < RightCols; k++) for(k = 0; k < RightCols; k++)
{ {
int m; int m;
@ -133,8 +138,10 @@ struct simul_eq
} }
return true; return true;
} }
}; };
} // namespace agg
}
#endif #endif

View file

@ -18,10 +18,10 @@
#include "agg_array.h" #include "agg_array.h"
namespace agg { namespace agg
{
//----------------------------------------------------------span_allocator //----------------------------------------------------------span_allocator
template<class ColorT> template<class ColorT> class span_allocator
class span_allocator
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
@ -46,6 +46,9 @@ class span_allocator
private: private:
pod_array<color_type> m_span; pod_array<color_type> m_span;
}; };
} // namespace agg }
#endif #endif

View file

@ -18,18 +18,16 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//----------------------------------------------------------span_converter //----------------------------------------------------------span_converter
template<class SpanGenerator, class SpanConverter> template<class SpanGenerator, class SpanConverter> class span_converter
class span_converter
{ {
public: public:
typedef typename SpanGenerator::color_type color_type; typedef typename SpanGenerator::color_type color_type;
span_converter(SpanGenerator& span_gen, SpanConverter& span_cnv) span_converter(SpanGenerator& span_gen, SpanConverter& span_cnv) :
: m_span_gen(&span_gen) m_span_gen(&span_gen), m_span_cnv(&span_cnv) {}
, m_span_cnv(&span_cnv)
{}
void attach_generator(SpanGenerator& span_gen) { m_span_gen = &span_gen; } void attach_generator(SpanGenerator& span_gen) { m_span_gen = &span_gen; }
void attach_converter(SpanConverter& span_cnv) { m_span_cnv = &span_cnv; } void attach_converter(SpanConverter& span_cnv) { m_span_cnv = &span_cnv; }
@ -53,6 +51,6 @@ class span_converter
SpanConverter* m_span_cnv; SpanConverter* m_span_cnv;
}; };
} // namespace agg }
#endif #endif

View file

@ -19,11 +19,11 @@
#include "agg_basics.h" #include "agg_basics.h"
#include "agg_math.h" #include "agg_math.h"
namespace agg { namespace agg
{
//============================================================span_gouraud //============================================================span_gouraud
template<class ColorT> template<class ColorT> class span_gouraud
class span_gouraud
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
@ -36,8 +36,8 @@ class span_gouraud
}; };
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_gouraud() span_gouraud() :
: m_vertex(0) m_vertex(0)
{ {
m_cmd[0] = path_cmd_stop; m_cmd[0] = path_cmd_stop;
} }
@ -46,14 +46,11 @@ class span_gouraud
span_gouraud(const color_type& c1, span_gouraud(const color_type& c1,
const color_type& c2, const color_type& c2,
const color_type& c3, const color_type& c3,
double x1, double x1, double y1,
double y1, double x2, double y2,
double x2, double x3, double y3,
double y2, double d) :
double x3, m_vertex(0)
double y3,
double d)
: m_vertex(0)
{ {
colors(c1, c2, c3); colors(c1, c2, c3);
triangle(x1, y1, x2, y2, x3, y3, d); triangle(x1, y1, x2, y2, x3, y3, d);
@ -74,7 +71,10 @@ class span_gouraud
// It's necessary to achieve numerical stability. // It's necessary to achieve numerical stability.
// However, the coordinates to interpolate colors are calculated // However, the coordinates to interpolate colors are calculated
// as miter joins (calc_intersection). // as miter joins (calc_intersection).
void triangle(double x1, double y1, double x2, double y2, double x3, double y3, double d) void triangle(double x1, double y1,
double x2, double y2,
double x3, double y3,
double d)
{ {
m_coord[0].x = m_x[0] = x1; m_coord[0].x = m_x[0] = x1;
m_coord[0].y = m_y[0] = y1; m_coord[0].y = m_y[0] = y1;
@ -89,48 +89,22 @@ class span_gouraud
if(d != 0.0) if(d != 0.0)
{ {
dilate_triangle(m_coord[0].x, dilate_triangle(m_coord[0].x, m_coord[0].y,
m_coord[0].y, m_coord[1].x, m_coord[1].y,
m_coord[1].x, m_coord[2].x, m_coord[2].y,
m_coord[1].y, m_x, m_y, d);
m_coord[2].x,
m_coord[2].y,
m_x,
m_y,
d);
calc_intersection(m_x[4], calc_intersection(m_x[4], m_y[4], m_x[5], m_y[5],
m_y[4], m_x[0], m_y[0], m_x[1], m_y[1],
m_x[5], &m_coord[0].x, &m_coord[0].y);
m_y[5],
m_x[0],
m_y[0],
m_x[1],
m_y[1],
&m_coord[0].x,
&m_coord[0].y);
calc_intersection(m_x[0], calc_intersection(m_x[0], m_y[0], m_x[1], m_y[1],
m_y[0], m_x[2], m_y[2], m_x[3], m_y[3],
m_x[1], &m_coord[1].x, &m_coord[1].y);
m_y[1],
m_x[2],
m_y[2],
m_x[3],
m_y[3],
&m_coord[1].x,
&m_coord[1].y);
calc_intersection(m_x[2], calc_intersection(m_x[2], m_y[2], m_x[3], m_y[3],
m_y[2], m_x[4], m_y[4], m_x[5], m_y[5],
m_x[3], &m_coord[2].x, &m_coord[2].y);
m_y[3],
m_x[4],
m_y[4],
m_x[5],
m_y[5],
&m_coord[2].x,
&m_coord[2].y);
m_cmd[3] = path_cmd_line_to; m_cmd[3] = path_cmd_line_to;
m_cmd[4] = path_cmd_line_to; m_cmd[4] = path_cmd_line_to;
m_cmd[5] = path_cmd_line_to; m_cmd[5] = path_cmd_line_to;
@ -140,7 +114,10 @@ class span_gouraud
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Vertex Source Interface to feed the coordinates to the rasterizer // Vertex Source Interface to feed the coordinates to the rasterizer
void rewind(unsigned) { m_vertex = 0; } void rewind(unsigned)
{
m_vertex = 0;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
unsigned vertex(double* x, double* y) unsigned vertex(double* x, double* y)
@ -189,6 +166,7 @@ class span_gouraud
unsigned m_vertex; unsigned m_vertex;
}; };
} // namespace agg }
#endif #endif

View file

@ -29,18 +29,22 @@
#include "agg_dda_line.h" #include "agg_dda_line.h"
#include "agg_span_gouraud.h" #include "agg_span_gouraud.h"
namespace agg { namespace agg
{
//=======================================================span_gouraud_gray //=======================================================span_gouraud_gray
template<class ColorT> template<class ColorT> class span_gouraud_gray : public span_gouraud<ColorT>
class span_gouraud_gray : public span_gouraud<ColorT>
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef span_gouraud<color_type> base_type; typedef span_gouraud<color_type> base_type;
typedef typename base_type::coord_type coord_type; typedef typename base_type::coord_type coord_type;
enum subpixel_scale_e { subpixel_shift = 4, subpixel_scale = 1 << subpixel_shift }; enum subpixel_scale_e
{
subpixel_shift = 4,
subpixel_scale = 1 << subpixel_shift
};
private: private:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -62,10 +66,8 @@ class span_gouraud_gray : public span_gouraud<ColorT>
void calc(double y) void calc(double y)
{ {
double k = (y - m_y1) * m_1dy; double k = (y - m_y1) * m_1dy;
if (k < 0.0) if(k < 0.0) k = 0.0;
k = 0.0; if(k > 1.0) k = 1.0;
if (k > 1.0)
k = 1.0;
m_v = m_v1 + iround(m_dv * k); m_v = m_v1 + iround(m_dv * k);
m_a = m_a1 + iround(m_da * k); m_a = m_a1 + iround(m_da * k);
m_x = iround((m_x1 + m_dx * k) * subpixel_scale); m_x = iround((m_x1 + m_dx * k) * subpixel_scale);
@ -84,20 +86,18 @@ class span_gouraud_gray : public span_gouraud<ColorT>
int m_x; int m_x;
}; };
public: public:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_gouraud_gray() {} span_gouraud_gray() {}
span_gouraud_gray(const color_type& c1, span_gouraud_gray(const color_type& c1,
const color_type& c2, const color_type& c2,
const color_type& c3, const color_type& c3,
double x1, double x1, double y1,
double y1, double x2, double y2,
double x2, double x3, double y3,
double y2, double d = 0) :
double x3, base_type(c1, c2, c3, x1, y1, x2, y2, x3, y3, d)
double y3,
double d = 0)
: base_type(c1, c2, c3, x1, y1, x2, y2, x3, y3, d)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -108,7 +108,9 @@ class span_gouraud_gray : public span_gouraud<ColorT>
m_y2 = int(coord[1].y); m_y2 = int(coord[1].y);
m_swap = cross_product(coord[0].x, coord[0].y, coord[2].x, coord[2].y, coord[1].x, coord[1].y) < 0.0; m_swap = cross_product(coord[0].x, coord[0].y,
coord[2].x, coord[2].y,
coord[1].x, coord[1].y) < 0.0;
m_c1.init(coord[0], coord[2]); m_c1.init(coord[0], coord[2]);
m_c2.init(coord[0], coord[1]); m_c2.init(coord[0], coord[1]);
@ -150,8 +152,7 @@ class span_gouraud_gray : public span_gouraud<ColorT>
// and protect it from division by zero // and protect it from division by zero
//------------------------- //-------------------------
int nlen = std::abs(pc2->m_x - pc1->m_x); int nlen = std::abs(pc2->m_x - pc1->m_x);
if (nlen <= 0) if(nlen <= 0) nlen = 1;
nlen = 1;
dda_line_interpolator<14> v(pc1->m_v, pc2->m_v, nlen); dda_line_interpolator<14> v(pc1->m_v, pc2->m_v, nlen);
dda_line_interpolator<14> a(pc1->m_a, pc2->m_a, nlen); dda_line_interpolator<14> a(pc1->m_a, pc2->m_a, nlen);
@ -179,14 +180,8 @@ class span_gouraud_gray : public span_gouraud<ColorT>
{ {
vv = v.y(); vv = v.y();
va = a.y(); va = a.y();
if (vv < 0) if(vv < 0) vv = 0; if(vv > lim) vv = lim;
vv = 0; if(va < 0) va = 0; if(va > lim) va = lim;
if (vv > lim)
vv = lim;
if (va < 0)
va = 0;
if (va > lim)
va = lim;
span->v = (value_type)vv; span->v = (value_type)vv;
span->a = (value_type)va; span->a = (value_type)va;
v += subpixel_scale; v += subpixel_scale;
@ -220,14 +215,8 @@ class span_gouraud_gray : public span_gouraud<ColorT>
{ {
vv = v.y(); vv = v.y();
va = a.y(); va = a.y();
if (vv < 0) if(vv < 0) vv = 0; if(vv > lim) vv = lim;
vv = 0; if(va < 0) va = 0; if(va > lim) va = lim;
if (vv > lim)
vv = lim;
if (va < 0)
va = 0;
if (va > lim)
va = lim;
span->v = (value_type)vv; span->v = (value_type)vv;
span->a = (value_type)va; span->a = (value_type)va;
v += subpixel_scale; v += subpixel_scale;
@ -237,6 +226,7 @@ class span_gouraud_gray : public span_gouraud<ColorT>
} }
} }
private: private:
bool m_swap; bool m_swap;
int m_y2; int m_y2;
@ -245,6 +235,7 @@ class span_gouraud_gray : public span_gouraud<ColorT>
gray_calc m_c3; gray_calc m_c3;
}; };
} // namespace agg
}
#endif #endif

View file

@ -29,18 +29,22 @@
#include "agg_dda_line.h" #include "agg_dda_line.h"
#include "agg_span_gouraud.h" #include "agg_span_gouraud.h"
namespace agg { namespace agg
{
//=======================================================span_gouraud_rgba //=======================================================span_gouraud_rgba
template<class ColorT> template<class ColorT> class span_gouraud_rgba : public span_gouraud<ColorT>
class span_gouraud_rgba : public span_gouraud<ColorT>
{ {
public: public:
typedef ColorT color_type; typedef ColorT color_type;
typedef typename ColorT::value_type value_type; typedef typename ColorT::value_type value_type;
typedef span_gouraud<color_type> base_type; typedef span_gouraud<color_type> base_type;
typedef typename base_type::coord_type coord_type; typedef typename base_type::coord_type coord_type;
enum subpixel_scale_e { subpixel_shift = 4, subpixel_scale = 1 << subpixel_shift }; enum subpixel_scale_e
{
subpixel_shift = 4,
subpixel_scale = 1 << subpixel_shift
};
private: private:
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -66,10 +70,8 @@ class span_gouraud_rgba : public span_gouraud<ColorT>
void calc(double y) void calc(double y)
{ {
double k = (y - m_y1) * m_1dy; double k = (y - m_y1) * m_1dy;
if (k < 0.0) if(k < 0.0) k = 0.0;
k = 0.0; if(k > 1.0) k = 1.0;
if (k > 1.0)
k = 1.0;
m_r = m_r1 + iround(m_dr * k); m_r = m_r1 + iround(m_dr * k);
m_g = m_g1 + iround(m_dg * k); m_g = m_g1 + iround(m_dg * k);
m_b = m_b1 + iround(m_db * k); m_b = m_b1 + iround(m_db * k);
@ -103,14 +105,11 @@ class span_gouraud_rgba : public span_gouraud<ColorT>
span_gouraud_rgba(const color_type& c1, span_gouraud_rgba(const color_type& c1,
const color_type& c2, const color_type& c2,
const color_type& c3, const color_type& c3,
double x1, double x1, double y1,
double y1, double x2, double y2,
double x2, double x3, double y3,
double y2, double d = 0) :
double x3, base_type(c1, c2, c3, x1, y1, x2, y2, x3, y3, d)
double y3,
double d = 0)
: base_type(c1, c2, c3, x1, y1, x2, y2, x3, y3, d)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -121,7 +120,9 @@ class span_gouraud_rgba : public span_gouraud<ColorT>
m_y2 = int(coord[1].y); m_y2 = int(coord[1].y);
m_swap = cross_product(coord[0].x, coord[0].y, coord[2].x, coord[2].y, coord[1].x, coord[1].y) < 0.0; m_swap = cross_product(coord[0].x, coord[0].y,
coord[2].x, coord[2].y,
coord[1].x, coord[1].y) < 0.0;
m_rgba1.init(coord[0], coord[2]); m_rgba1.init(coord[0], coord[2]);
m_rgba2.init(coord[0], coord[1]); m_rgba2.init(coord[0], coord[1]);
@ -163,8 +164,7 @@ class span_gouraud_rgba : public span_gouraud<ColorT>
// and protect it from division by zero // and protect it from division by zero
//------------------------- //-------------------------
int nlen = std::abs(pc2->m_x - pc1->m_x); int nlen = std::abs(pc2->m_x - pc1->m_x);
if (nlen <= 0) if(nlen <= 0) nlen = 1;
nlen = 1;
dda_line_interpolator<14> r(pc1->m_r, pc2->m_r, nlen); dda_line_interpolator<14> r(pc1->m_r, pc2->m_r, nlen);
dda_line_interpolator<14> g(pc1->m_g, pc2->m_g, nlen); dda_line_interpolator<14> g(pc1->m_g, pc2->m_g, nlen);
@ -198,22 +198,10 @@ class span_gouraud_rgba : public span_gouraud<ColorT>
vg = g.y(); vg = g.y();
vb = b.y(); vb = b.y();
va = a.y(); va = a.y();
if (vr < 0) if(vr < 0) vr = 0; if(vr > lim) vr = lim;
vr = 0; if(vg < 0) vg = 0; if(vg > lim) vg = lim;
if (vr > lim) if(vb < 0) vb = 0; if(vb > lim) vb = lim;
vr = lim; if(va < 0) va = 0; if(va > lim) va = lim;
if (vg < 0)
vg = 0;
if (vg > lim)
vg = lim;
if (vb < 0)
vb = 0;
if (vb > lim)
vb = lim;
if (va < 0)
va = 0;
if (va > lim)
va = lim;
span->r = (value_type)vr; span->r = (value_type)vr;
span->g = (value_type)vg; span->g = (value_type)vg;
span->b = (value_type)vb; span->b = (value_type)vb;
@ -257,22 +245,10 @@ class span_gouraud_rgba : public span_gouraud<ColorT>
vg = g.y(); vg = g.y();
vb = b.y(); vb = b.y();
va = a.y(); va = a.y();
if (vr < 0) if(vr < 0) vr = 0; if(vr > lim) vr = lim;
vr = 0; if(vg < 0) vg = 0; if(vg > lim) vg = lim;
if (vr > lim) if(vb < 0) vb = 0; if(vb > lim) vb = lim;
vr = lim; if(va < 0) va = 0; if(va > lim) va = lim;
if (vg < 0)
vg = 0;
if (vg > lim)
vg = lim;
if (vb < 0)
vb = 0;
if (vb > lim)
vb = lim;
if (va < 0)
va = 0;
if (va > lim)
va = lim;
span->r = (value_type)vr; span->r = (value_type)vr;
span->g = (value_type)vg; span->g = (value_type)vg;
span->b = (value_type)vb; span->b = (value_type)vb;
@ -294,6 +270,8 @@ class span_gouraud_rgba : public span_gouraud<ColorT>
rgba_calc m_rgba3; rgba_calc m_rgba3;
}; };
} // namespace agg
}
#endif #endif

View file

@ -23,23 +23,35 @@
#include "agg_math.h" #include "agg_math.h"
#include "agg_array.h" #include "agg_array.h"
namespace agg {
enum gradient_subpixel_scale_e { namespace agg
{
enum gradient_subpixel_scale_e
{
gradient_subpixel_shift = 4, //-----gradient_subpixel_shift gradient_subpixel_shift = 4, //-----gradient_subpixel_shift
gradient_subpixel_scale = 1 << gradient_subpixel_shift, //-----gradient_subpixel_scale gradient_subpixel_scale = 1 << gradient_subpixel_shift, //-----gradient_subpixel_scale
gradient_subpixel_mask = gradient_subpixel_scale - 1 //-----gradient_subpixel_mask gradient_subpixel_mask = gradient_subpixel_scale - 1 //-----gradient_subpixel_mask
}; };
//==========================================================span_gradient //==========================================================span_gradient
template<class ColorT, class Interpolator, class GradientF, class ColorF> template<class ColorT,
class Interpolator,
class GradientF,
class ColorF>
class span_gradient class span_gradient
{ {
public: public:
typedef Interpolator interpolator_type; typedef Interpolator interpolator_type;
typedef ColorT color_type; typedef ColorT color_type;
enum downscale_shift_e { downscale_shift = interpolator_type::subpixel_shift - gradient_subpixel_shift }; enum downscale_shift_e
{
downscale_shift = interpolator_type::subpixel_shift -
gradient_subpixel_shift
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_gradient() {} span_gradient() {}
@ -48,13 +60,12 @@ class span_gradient
span_gradient(interpolator_type& inter, span_gradient(interpolator_type& inter,
const GradientF& gradient_function, const GradientF& gradient_function,
const ColorF& color_function, const ColorF& color_function,
double d1, double d1, double d2) :
double d2) m_interpolator(&inter),
: m_interpolator(&inter) m_gradient_function(&gradient_function),
, m_gradient_function(&gradient_function) m_color_function(&color_function),
, m_color_function(&color_function) m_d1(iround(d1 * gradient_subpixel_scale)),
, m_d1(iround(d1 * gradient_subpixel_scale)) m_d2(iround(d2 * gradient_subpixel_scale))
, m_d2(iround(d2 * gradient_subpixel_scale))
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -78,21 +89,20 @@ class span_gradient
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
int dd = m_d2 - m_d1; int dd = m_d2 - m_d1;
if (dd < 1) if(dd < 1) dd = 1;
dd = 1;
m_interpolator->begin(x+0.5, y+0.5, len); m_interpolator->begin(x+0.5, y+0.5, len);
do do
{ {
m_interpolator->coordinates(&x, &y); m_interpolator->coordinates(&x, &y);
int d = m_gradient_function->calculate(x >> downscale_shift, y >> downscale_shift, m_d2); int d = m_gradient_function->calculate(x >> downscale_shift,
y >> downscale_shift, m_d2);
d = ((d - m_d1) * (int)m_color_function->size()) / dd; d = ((d - m_d1) * (int)m_color_function->size()) / dd;
if (d < 0) if(d < 0) d = 0;
d = 0; if(d >= (int)m_color_function->size()) d = m_color_function->size() - 1;
if (d >= (int)m_color_function->size())
d = m_color_function->size() - 1;
*span++ = (*m_color_function)[d]; *span++ = (*m_color_function)[d];
++(*m_interpolator); ++(*m_interpolator);
} while (--len); }
while(--len);
} }
private: private:
@ -103,6 +113,9 @@ class span_gradient
int m_d2; int m_d2;
}; };
//=====================================================gradient_linear_color //=====================================================gradient_linear_color
template<class ColorT> template<class ColorT>
struct gradient_linear_color struct gradient_linear_color
@ -110,14 +123,15 @@ struct gradient_linear_color
typedef ColorT color_type; typedef ColorT color_type;
gradient_linear_color() {} gradient_linear_color() {}
gradient_linear_color(const color_type& c1, const color_type& c2, unsigned size = 256) gradient_linear_color(const color_type& c1, const color_type& c2,
: m_c1(c1) unsigned size = 256) :
, m_c2(c2) m_c1(c1), m_c2(c2), m_size(size) {}
, m_size(size)
{}
unsigned size() const { return m_size; } unsigned size() const { return m_size; }
color_type operator[](unsigned v) const { return m_c1.gradient(m_c2, double(v) / double(m_size - 1)); } color_type operator [] (unsigned v) const
{
return m_c1.gradient(m_c2, double(v) / double(m_size - 1));
}
void colors(const color_type& c1, const color_type& c2, unsigned size = 256) void colors(const color_type& c1, const color_type& c2, unsigned size = 256)
{ {
@ -131,19 +145,31 @@ struct gradient_linear_color
unsigned m_size; unsigned m_size;
}; };
//==========================================================gradient_circle //==========================================================gradient_circle
class gradient_circle class gradient_circle
{ {
// Actually the same as radial. Just for compatibility // Actually the same as radial. Just for compatibility
public: public:
static AGG_INLINE int calculate(int x, int y, int) { return int(fast_sqrt(x * x + y * y)); } static AGG_INLINE int calculate(int x, int y, int)
{
return int(fast_sqrt(x*x + y*y));
}
}; };
//==========================================================gradient_radial //==========================================================gradient_radial
class gradient_radial class gradient_radial
{ {
public: public:
static AGG_INLINE int calculate(int x, int y, int) { return int(fast_sqrt(x * x + y * y)); } static AGG_INLINE int calculate(int x, int y, int)
{
return int(fast_sqrt(x*x + y*y));
}
}; };
//========================================================gradient_radial_d //========================================================gradient_radial_d
@ -161,19 +187,19 @@ class gradient_radial_focus
{ {
public: public:
//--------------------------------------------------------------------- //---------------------------------------------------------------------
gradient_radial_focus() gradient_radial_focus() :
: m_r(100 * gradient_subpixel_scale) m_r(100 * gradient_subpixel_scale),
, m_fx(0) m_fx(0),
, m_fy(0) m_fy(0)
{ {
update_values(); update_values();
} }
//--------------------------------------------------------------------- //---------------------------------------------------------------------
gradient_radial_focus(double r, double fx, double fy) gradient_radial_focus(double r, double fx, double fy) :
: m_r(iround(r * gradient_subpixel_scale)) m_r (iround(r * gradient_subpixel_scale)),
, m_fx(iround(fx * gradient_subpixel_scale)) m_fx(iround(fx * gradient_subpixel_scale)),
, m_fy(iround(fy * gradient_subpixel_scale)) m_fy(iround(fy * gradient_subpixel_scale))
{ {
update_values(); update_values();
} }
@ -218,20 +244,8 @@ class gradient_radial_focus
double d = (m_r2 - (m_fx2 + m_fy2)); double d = (m_r2 - (m_fx2 + m_fy2));
if(d == 0) if(d == 0)
{ {
if (m_fx) if(m_fx) { if(m_fx < 0) ++m_fx; else --m_fx; }
{ if(m_fy) { if(m_fy < 0) ++m_fy; else --m_fy; }
if (m_fx < 0)
++m_fx;
else
--m_fx;
}
if (m_fy)
{
if (m_fy < 0)
++m_fy;
else
--m_fy;
}
m_fx2 = double(m_fx) * double(m_fx); m_fx2 = double(m_fx) * double(m_fx);
m_fy2 = double(m_fy) * double(m_fy); m_fy2 = double(m_fy) * double(m_fy);
d = (m_r2 - (m_fx2 + m_fy2)); d = (m_r2 - (m_fx2 + m_fy2));
@ -248,6 +262,7 @@ class gradient_radial_focus
double m_mul; double m_mul;
}; };
//==============================================================gradient_x //==============================================================gradient_x
class gradient_x class gradient_x
{ {
@ -255,6 +270,7 @@ class gradient_x
static int calculate(int x, int, int) { return x; } static int calculate(int x, int, int) { return x; }
}; };
//==============================================================gradient_y //==============================================================gradient_y
class gradient_y class gradient_y
{ {
@ -278,14 +294,20 @@ class gradient_diamond
class gradient_xy class gradient_xy
{ {
public: public:
static AGG_INLINE int calculate(int x, int y, int d) { return std::abs(x) * std::abs(y) / d; } static AGG_INLINE int calculate(int x, int y, int d)
{
return std::abs(x) * std::abs(y) / d;
}
}; };
//========================================================gradient_sqrt_xy //========================================================gradient_sqrt_xy
class gradient_sqrt_xy class gradient_sqrt_xy
{ {
public: public:
static AGG_INLINE int calculate(int x, int y, int) { return fast_sqrt(std::abs(x) * std::abs(y)); } static AGG_INLINE int calculate(int x, int y, int)
{
return fast_sqrt(std::abs(x) * std::abs(y));
}
}; };
//==========================================================gradient_conic //==========================================================gradient_conic
@ -299,19 +321,16 @@ class gradient_conic
}; };
//=================================================gradient_repeat_adaptor //=================================================gradient_repeat_adaptor
template<class GradientF> template<class GradientF> class gradient_repeat_adaptor
class gradient_repeat_adaptor
{ {
public: public:
gradient_repeat_adaptor(const GradientF& gradient) gradient_repeat_adaptor(const GradientF& gradient) :
: m_gradient(&gradient) m_gradient(&gradient) {}
{}
AGG_INLINE int calculate(int x, int y, int d) const AGG_INLINE int calculate(int x, int y, int d) const
{ {
int ret = m_gradient->calculate(x, y, d) % d; int ret = m_gradient->calculate(x, y, d) % d;
if (ret < 0) if(ret < 0) ret += d;
ret += d;
return ret; return ret;
} }
@ -320,22 +339,18 @@ class gradient_repeat_adaptor
}; };
//================================================gradient_reflect_adaptor //================================================gradient_reflect_adaptor
template<class GradientF> template<class GradientF> class gradient_reflect_adaptor
class gradient_reflect_adaptor
{ {
public: public:
gradient_reflect_adaptor(const GradientF& gradient) gradient_reflect_adaptor(const GradientF& gradient) :
: m_gradient(&gradient) m_gradient(&gradient) {}
{}
AGG_INLINE int calculate(int x, int y, int d) const AGG_INLINE int calculate(int x, int y, int d) const
{ {
int d2 = d << 1; int d2 = d << 1;
int ret = m_gradient->calculate(x, y, d) % d2; int ret = m_gradient->calculate(x, y, d) % d2;
if (ret < 0) if(ret < 0) ret += d2;
ret += d2; if(ret >= d) ret = d2 - ret;
if (ret >= d)
ret = d2 - ret;
return ret; return ret;
} }
@ -343,6 +358,7 @@ class gradient_reflect_adaptor
const GradientF* m_gradient; const GradientF* m_gradient;
}; };
} // namespace agg
}
#endif #endif

View file

@ -18,9 +18,13 @@
#include "agg_span_gradient.h" #include "agg_span_gradient.h"
namespace agg { namespace agg
{
//======================================================span_gradient_alpha //======================================================span_gradient_alpha
template<class ColorT, class Interpolator, class GradientF, class AlphaF> template<class ColorT,
class Interpolator,
class GradientF,
class AlphaF>
class span_gradient_alpha class span_gradient_alpha
{ {
public: public:
@ -28,7 +32,11 @@ class span_gradient_alpha
typedef ColorT color_type; typedef ColorT color_type;
typedef typename color_type::value_type alpha_type; typedef typename color_type::value_type alpha_type;
enum downscale_shift_e { downscale_shift = interpolator_type::subpixel_shift - gradient_subpixel_shift }; enum downscale_shift_e
{
downscale_shift = interpolator_type::subpixel_shift - gradient_subpixel_shift
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_gradient_alpha() {} span_gradient_alpha() {}
@ -37,13 +45,12 @@ class span_gradient_alpha
span_gradient_alpha(interpolator_type& inter, span_gradient_alpha(interpolator_type& inter,
const GradientF& gradient_function, const GradientF& gradient_function,
const AlphaF& alpha_function, const AlphaF& alpha_function,
double d1, double d1, double d2) :
double d2) m_interpolator(&inter),
: m_interpolator(&inter) m_gradient_function(&gradient_function),
, m_gradient_function(&gradient_function) m_alpha_function(&alpha_function),
, m_alpha_function(&alpha_function) m_d1(iround(d1 * gradient_subpixel_scale)),
, m_d1(iround(d1 * gradient_subpixel_scale)) m_d2(iround(d2 * gradient_subpixel_scale))
, m_d2(iround(d2 * gradient_subpixel_scale))
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -67,22 +74,21 @@ class span_gradient_alpha
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
int dd = m_d2 - m_d1; int dd = m_d2 - m_d1;
if (dd < 1) if(dd < 1) dd = 1;
dd = 1;
m_interpolator->begin(x+0.5, y+0.5, len); m_interpolator->begin(x+0.5, y+0.5, len);
do do
{ {
m_interpolator->coordinates(&x, &y); m_interpolator->coordinates(&x, &y);
int d = m_gradient_function->calculate(x >> downscale_shift, y >> downscale_shift, m_d2); int d = m_gradient_function->calculate(x >> downscale_shift,
y >> downscale_shift, m_d2);
d = ((d - m_d1) * (int)m_alpha_function->size()) / dd; d = ((d - m_d1) * (int)m_alpha_function->size()) / dd;
if (d < 0) if(d < 0) d = 0;
d = 0; if(d >= (int)m_alpha_function->size()) d = m_alpha_function->size() - 1;
if (d >= (int)m_alpha_function->size())
d = m_alpha_function->size() - 1;
span->a = (*m_alpha_function)[d]; span->a = (*m_alpha_function)[d];
++span; ++span;
++(*m_interpolator); ++(*m_interpolator);
} while (--len); }
while(--len);
} }
private: private:
@ -93,9 +99,9 @@ class span_gradient_alpha
int m_d2; int m_d2;
}; };
//=======================================================gradient_alpha_x //=======================================================gradient_alpha_x
template<class ColorT> template<class ColorT> struct gradient_alpha_x
struct gradient_alpha_x
{ {
typedef typename ColorT::value_type alpha_type; typedef typename ColorT::value_type alpha_type;
alpha_type operator [] (alpha_type x) const { return x; } alpha_type operator [] (alpha_type x) const { return x; }
@ -115,6 +121,6 @@ struct gradient_alpha_one_munus_x_u8
alpha_type operator [] (alpha_type x) const { return 255-x; } alpha_type operator [] (alpha_type x) const { return 255-x; }
}; };
} // namespace agg }
#endif #endif

View file

@ -23,11 +23,11 @@
#include "agg_image_filters.h" #include "agg_image_filters.h"
#include "agg_span_interpolator_linear.h" #include "agg_span_interpolator_linear.h"
namespace agg { namespace agg
{
//-------------------------------------------------------span_image_filter //-------------------------------------------------------span_image_filter
template<class Source, class Interpolator> template<class Source, class Interpolator> class span_image_filter
class span_image_filter
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -35,14 +35,16 @@ class span_image_filter
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter() {} span_image_filter() {}
span_image_filter(source_type& src, interpolator_type& interpolator, const image_filter_lut* filter) span_image_filter(source_type& src,
: m_src(&src) interpolator_type& interpolator,
, m_interpolator(&interpolator) const image_filter_lut* filter) :
, m_filter(filter) m_src(&src),
, m_dx_dbl(0.5) m_interpolator(&interpolator),
, m_dy_dbl(0.5) m_filter(filter),
, m_dx_int(image_subpixel_scale / 2) m_dx_dbl(0.5),
, m_dy_int(image_subpixel_scale / 2) m_dy_dbl(0.5),
m_dx_int(image_subpixel_scale / 2),
m_dy_int(image_subpixel_scale / 2)
{} {}
void attach(source_type& v) { m_src = &v; } void attach(source_type& v) { m_src = &v; }
@ -84,9 +86,13 @@ class span_image_filter
unsigned m_dy_int; unsigned m_dy_int;
}; };
//==============================================span_image_resample_affine //==============================================span_image_resample_affine
template<class Source> template<class Source>
class span_image_resample_affine : public span_image_filter<Source, span_interpolator_linear<trans_affine>> class span_image_resample_affine :
public span_image_filter<Source, span_interpolator_linear<trans_affine> >
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -94,20 +100,23 @@ class span_image_resample_affine : public span_image_filter<Source, span_interpo
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_affine() span_image_resample_affine() :
: m_scale_limit(200.0) m_scale_limit(200.0),
, m_blur_x(1.0) m_blur_x(1.0),
, m_blur_y(1.0) m_blur_y(1.0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_affine(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample_affine(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
, m_scale_limit(200.0) const image_filter_lut& filter) :
, m_blur_x(1.0) base_type(src, inter, &filter),
, m_blur_y(1.0) m_scale_limit(200.0),
m_blur_x(1.0),
m_blur_y(1.0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
int scale_limit() const { return uround(m_scale_limit); } int scale_limit() const { return uround(m_scale_limit); }
void scale_limit(int v) { m_scale_limit = v; } void scale_limit(int v) { m_scale_limit = v; }
@ -133,23 +142,17 @@ class span_image_resample_affine : public span_image_filter<Source, span_interpo
scale_y = scale_y * m_scale_limit / (scale_x * scale_y); scale_y = scale_y * m_scale_limit / (scale_x * scale_y);
} }
if (scale_x < 1) if(scale_x < 1) scale_x = 1;
scale_x = 1; if(scale_y < 1) scale_y = 1;
if (scale_y < 1)
scale_y = 1;
if (scale_x > m_scale_limit) if(scale_x > m_scale_limit) scale_x = m_scale_limit;
scale_x = m_scale_limit; if(scale_y > m_scale_limit) scale_y = m_scale_limit;
if (scale_y > m_scale_limit)
scale_y = m_scale_limit;
scale_x *= m_blur_x; scale_x *= m_blur_x;
scale_y *= m_blur_y; scale_y *= m_blur_y;
if (scale_x < 1) if(scale_x < 1) scale_x = 1;
scale_x = 1; if(scale_y < 1) scale_y = 1;
if (scale_y < 1)
scale_y = 1;
m_rx = uround( scale_x * double(image_subpixel_scale)); m_rx = uround( scale_x * double(image_subpixel_scale));
m_rx_inv = uround(1.0/scale_x * double(image_subpixel_scale)); m_rx_inv = uround(1.0/scale_x * double(image_subpixel_scale));
@ -170,9 +173,12 @@ class span_image_resample_affine : public span_image_filter<Source, span_interpo
double m_blur_y; double m_blur_y;
}; };
//=====================================================span_image_resample //=====================================================span_image_resample
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_resample : public span_image_filter<Source, Interpolator> class span_image_resample :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -180,18 +186,20 @@ class span_image_resample : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample() span_image_resample() :
: m_scale_limit(20) m_scale_limit(20),
, m_blur_x(image_subpixel_scale) m_blur_x(image_subpixel_scale),
, m_blur_y(image_subpixel_scale) m_blur_y(image_subpixel_scale)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
, m_scale_limit(20) const image_filter_lut& filter) :
, m_blur_x(image_subpixel_scale) base_type(src, inter, &filter),
, m_blur_y(image_subpixel_scale) m_scale_limit(20),
m_blur_x(image_subpixel_scale),
m_blur_y(image_subpixel_scale)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
@ -203,15 +211,14 @@ class span_image_resample : public span_image_filter<Source, Interpolator>
double blur_y() const { return double(m_blur_y) / double(image_subpixel_scale); } double blur_y() const { return double(m_blur_y) / double(image_subpixel_scale); }
void blur_x(double v) { m_blur_x = uround(v * double(image_subpixel_scale)); } void blur_x(double v) { m_blur_x = uround(v * double(image_subpixel_scale)); }
void blur_y(double v) { m_blur_y = uround(v * double(image_subpixel_scale)); } void blur_y(double v) { m_blur_y = uround(v * double(image_subpixel_scale)); }
void blur(double v) { m_blur_x = m_blur_y = uround(v * double(image_subpixel_scale)); } void blur(double v) { m_blur_x =
m_blur_y = uround(v * double(image_subpixel_scale)); }
protected: protected:
AGG_INLINE void adjust_scale(int* rx, int* ry) AGG_INLINE void adjust_scale(int* rx, int* ry)
{ {
if (*rx < image_subpixel_scale) if(*rx < image_subpixel_scale) *rx = image_subpixel_scale;
*rx = image_subpixel_scale; if(*ry < image_subpixel_scale) *ry = image_subpixel_scale;
if (*ry < image_subpixel_scale)
*ry = image_subpixel_scale;
if(*rx > image_subpixel_scale * m_scale_limit) if(*rx > image_subpixel_scale * m_scale_limit)
{ {
*rx = image_subpixel_scale * m_scale_limit; *rx = image_subpixel_scale * m_scale_limit;
@ -222,10 +229,8 @@ class span_image_resample : public span_image_filter<Source, Interpolator>
} }
*rx = (*rx * m_blur_x) >> image_subpixel_shift; *rx = (*rx * m_blur_x) >> image_subpixel_shift;
*ry = (*ry * m_blur_y) >> image_subpixel_shift; *ry = (*ry * m_blur_y) >> image_subpixel_shift;
if (*rx < image_subpixel_scale) if(*rx < image_subpixel_scale) *rx = image_subpixel_scale;
*rx = image_subpixel_scale; if(*ry < image_subpixel_scale) *ry = image_subpixel_scale;
if (*ry < image_subpixel_scale)
*ry = image_subpixel_scale;
} }
int m_scale_limit; int m_scale_limit;
@ -233,6 +238,9 @@ class span_image_resample : public span_image_filter<Source, Interpolator>
int m_blur_y; int m_blur_y;
}; };
} // namespace agg
}
#endif #endif

View file

@ -27,11 +27,14 @@
#include "agg_color_gray.h" #include "agg_color_gray.h"
#include "agg_span_image_filter.h" #include "agg_span_image_filter.h"
namespace agg {
namespace agg
{
//==============================================span_image_filter_gray_nn //==============================================span_image_filter_gray_nn
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_gray_nn : public span_image_filter<Source, Interpolator> class span_image_filter_gray_nn :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -40,23 +43,31 @@ class span_image_filter_gray_nn : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_gray_nn() {} span_image_filter_gray_nn() {}
span_image_filter_gray_nn(source_type& src, interpolator_type& inter) span_image_filter_gray_nn(source_type& src,
: base_type(src, inter, 0) interpolator_type& inter) :
base_type(src, inter, 0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
do do
{ {
base_type::interpolator().coordinates(&x, &y); base_type::interpolator().coordinates(&x, &y);
span->v = span->v = *(const value_type*)
*(const value_type*)base_type::source().span(x >> image_subpixel_shift, y >> image_subpixel_shift, 1); base_type::source().span(x >> image_subpixel_shift,
y >> image_subpixel_shift,
1);
span->a = base_mask; span->a = base_mask;
++span; ++span;
++base_type::interpolator(); ++base_type::interpolator();
@ -64,9 +75,12 @@ class span_image_filter_gray_nn : public span_image_filter<Source, Interpolator>
} }
}; };
//=========================================span_image_filter_gray_bilinear //=========================================span_image_filter_gray_bilinear
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_gray_bilinear : public span_image_filter<Source, Interpolator> class span_image_filter_gray_bilinear :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -75,18 +89,25 @@ class span_image_filter_gray_bilinear : public span_image_filter<Source, Interpo
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_gray_bilinear() {} span_image_filter_gray_bilinear() {}
span_image_filter_gray_bilinear(source_type& src, interpolator_type& inter) span_image_filter_gray_bilinear(source_type& src,
: base_type(src, inter, 0) interpolator_type& inter) :
base_type(src, inter, 0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg; calc_type fg;
const value_type *fg_ptr; const value_type *fg_ptr;
do do
@ -128,9 +149,11 @@ class span_image_filter_gray_bilinear : public span_image_filter<Source, Interpo
} }
}; };
//====================================span_image_filter_gray_bilinear_clip //====================================span_image_filter_gray_bilinear_clip
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, Interpolator> class span_image_filter_gray_bilinear_clip :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -139,13 +162,19 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_gray_bilinear_clip() {} span_image_filter_gray_bilinear_clip() {}
span_image_filter_gray_bilinear_clip(source_type& src, const color_type& back_color, interpolator_type& inter) span_image_filter_gray_bilinear_clip(source_type& src,
: base_type(src, inter, 0) const color_type& back_color,
, m_back_color(back_color) interpolator_type& inter) :
base_type(src, inter, 0),
m_back_color(back_color)
{} {}
const color_type& background_color() const { return m_back_color; } const color_type& background_color() const { return m_back_color; }
void background_color(const color_type& v) { m_back_color = v; } void background_color(const color_type& v) { m_back_color = v; }
@ -153,7 +182,8 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg; calc_type fg;
calc_type src_alpha; calc_type src_alpha;
value_type back_v = m_back_color.v; value_type back_v = m_back_color.v;
@ -177,7 +207,8 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
int x_lr = x_hr >> image_subpixel_shift; int x_lr = x_hr >> image_subpixel_shift;
int y_lr = y_hr >> image_subpixel_shift; int y_lr = y_hr >> image_subpixel_shift;
if (x_lr >= 0 && y_lr >= 0 && x_lr < maxx && y_lr < maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr < maxx && y_lr < maxy)
{ {
fg = image_subpixel_scale * image_subpixel_scale / 2; fg = image_subpixel_scale * image_subpixel_scale / 2;
@ -200,22 +231,27 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
else else
{ {
unsigned weight; unsigned weight;
if (x_lr < -1 || y_lr < -1 || x_lr > maxx || y_lr > maxy) if(x_lr < -1 || y_lr < -1 ||
x_lr > maxx || y_lr > maxy)
{ {
fg = back_v; fg = back_v;
src_alpha = back_a; src_alpha = back_a;
} }
else else
{ {
fg = src_alpha = image_subpixel_scale * image_subpixel_scale / 2; fg =
src_alpha = image_subpixel_scale * image_subpixel_scale / 2;
x_hr &= image_subpixel_mask; x_hr &= image_subpixel_mask;
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
weight = (image_subpixel_scale - x_hr) * (image_subpixel_scale - y_hr); weight = (image_subpixel_scale - x_hr) *
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) (image_subpixel_scale - y_hr);
if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg += weight * *((const value_type*)base_type::source().row_ptr(y_lr) + x_lr); fg += weight *
*((const value_type*)base_type::source().row_ptr(y_lr) + x_lr);
src_alpha += weight * base_mask; src_alpha += weight * base_mask;
} }
else else
@ -227,9 +263,11 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
x_lr++; x_lr++;
weight = x_hr * (image_subpixel_scale - y_hr); weight = x_hr * (image_subpixel_scale - y_hr);
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg += weight * *((const value_type*)base_type::source().row_ptr(y_lr) + x_lr); fg += weight *
*((const value_type*)base_type::source().row_ptr(y_lr) + x_lr);
src_alpha += weight * base_mask; src_alpha += weight * base_mask;
} }
else else
@ -242,9 +280,11 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
y_lr++; y_lr++;
weight = (image_subpixel_scale - x_hr) * y_hr; weight = (image_subpixel_scale - x_hr) * y_hr;
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg += weight * *((const value_type*)base_type::source().row_ptr(y_lr) + x_lr); fg += weight *
*((const value_type*)base_type::source().row_ptr(y_lr) + x_lr);
src_alpha += weight * base_mask; src_alpha += weight * base_mask;
} }
else else
@ -256,9 +296,11 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
x_lr++; x_lr++;
weight = x_hr * y_hr; weight = x_hr * y_hr;
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg += weight * *((const value_type*)base_type::source().row_ptr(y_lr) + x_lr); fg += weight *
*((const value_type*)base_type::source().row_ptr(y_lr) + x_lr);
src_alpha += weight * base_mask; src_alpha += weight * base_mask;
} }
else else
@ -279,14 +321,16 @@ class span_image_filter_gray_bilinear_clip : public span_image_filter<Source, In
} while(--len); } while(--len);
} }
private: private:
color_type m_back_color; color_type m_back_color;
}; };
//==============================================span_image_filter_gray_2x2 //==============================================span_image_filter_gray_2x2
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_gray_2x2 : public span_image_filter<Source, Interpolator> class span_image_filter_gray_2x2 :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -295,24 +339,33 @@ class span_image_filter_gray_2x2 : public span_image_filter<Source, Interpolator
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_gray_2x2() {} span_image_filter_gray_2x2() {}
span_image_filter_gray_2x2(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_filter_gray_2x2(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, &filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg; calc_type fg;
const value_type *fg_ptr; const value_type *fg_ptr;
const int16* weight_array = const int16* weight_array = base_type::filter().weight_array() +
base_type::filter().weight_array() + ((base_type::filter().diameter() / 2 - 1) << image_subpixel_shift); ((base_type::filter().diameter()/2 - 1) <<
image_subpixel_shift);
do do
{ {
int x_hr; int x_hr;
@ -333,28 +386,35 @@ class span_image_filter_gray_2x2 : public span_image_filter<Source, Interpolator
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2); fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2);
weight = (weight_array[x_hr + image_subpixel_scale] * weight_array[y_hr + image_subpixel_scale] + weight = (weight_array[x_hr + image_subpixel_scale] *
weight_array[y_hr + image_subpixel_scale] +
image_filter_scale / 2) >> image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg += weight * *fg_ptr; fg += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
weight = (weight_array[x_hr] * weight_array[y_hr + image_subpixel_scale] + image_filter_scale / 2) >> weight = (weight_array[x_hr] *
weight_array[y_hr + image_subpixel_scale] +
image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg += weight * *fg_ptr; fg += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
weight = (weight_array[x_hr + image_subpixel_scale] * weight_array[y_hr] + image_filter_scale / 2) >> weight = (weight_array[x_hr + image_subpixel_scale] *
weight_array[y_hr] +
image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg += weight * *fg_ptr; fg += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
weight = (weight_array[x_hr] * weight_array[y_hr] + image_filter_scale / 2) >> image_filter_shift; weight = (weight_array[x_hr] *
weight_array[y_hr] +
image_filter_scale / 2) >>
image_filter_shift;
fg += weight * *fg_ptr; fg += weight * *fg_ptr;
fg >>= image_filter_shift; fg >>= image_filter_shift;
if (fg > base_mask) if(fg > base_mask) fg = base_mask;
fg = base_mask;
span->v = (value_type)fg; span->v = (value_type)fg;
span->a = base_mask; span->a = base_mask;
@ -364,9 +424,12 @@ class span_image_filter_gray_2x2 : public span_image_filter<Source, Interpolator
} }
}; };
//==================================================span_image_filter_gray //==================================================span_image_filter_gray
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_gray : public span_image_filter<Source, Interpolator> class span_image_filter_gray :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -375,18 +438,25 @@ class span_image_filter_gray : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_gray() {} span_image_filter_gray() {}
span_image_filter_gray(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_filter_gray(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, &filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
int fg; int fg;
const value_type *fg_ptr; const value_type *fg_ptr;
@ -417,7 +487,9 @@ class span_image_filter_gray : public span_image_filter<Source, Interpolator>
unsigned y_count = diameter; unsigned y_count = diameter;
y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask); y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask);
fg_ptr = (const value_type*)base_type::source().span(x_lr + start, y_lr + start, diameter); fg_ptr = (const value_type*)base_type::source().span(x_lr + start,
y_lr + start,
diameter);
for(;;) for(;;)
{ {
x_count = diameter; x_count = diameter;
@ -425,24 +497,23 @@ class span_image_filter_gray : public span_image_filter<Source, Interpolator>
x_hr = image_subpixel_mask - x_fract; x_hr = image_subpixel_mask - x_fract;
for(;;) for(;;)
{ {
fg += *fg_ptr * ((weight_y * weight_array[x_hr] + image_filter_scale / 2) >> image_filter_shift); fg += *fg_ptr *
if (--x_count == 0) ((weight_y * weight_array[x_hr] +
break; image_filter_scale / 2) >>
image_filter_shift);
if(--x_count == 0) break;
x_hr += image_subpixel_scale; x_hr += image_subpixel_scale;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
if (--y_count == 0) if(--y_count == 0) break;
break;
y_hr += image_subpixel_scale; y_hr += image_subpixel_scale;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
fg >>= image_filter_shift; fg >>= image_filter_shift;
if (fg < 0) if(fg < 0) fg = 0;
fg = 0; if(fg > base_mask) fg = base_mask;
if (fg > base_mask)
fg = base_mask;
span->v = (value_type)fg; span->v = (value_type)fg;
span->a = base_mask; span->a = base_mask;
@ -453,9 +524,12 @@ class span_image_filter_gray : public span_image_filter<Source, Interpolator>
} }
}; };
//=========================================span_image_resample_gray_affine //=========================================span_image_resample_gray_affine
template<class Source> template<class Source>
class span_image_resample_gray_affine : public span_image_resample_affine<Source> class span_image_resample_gray_affine :
public span_image_resample_affine<Source>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -464,7 +538,8 @@ class span_image_resample_gray_affine : public span_image_resample_affine<Source
typedef typename base_type::interpolator_type interpolator_type; typedef typename base_type::interpolator_type interpolator_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::long_type long_type; typedef typename color_type::long_type long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = color_type::base_shift, base_shift = color_type::base_shift,
base_mask = color_type::base_mask, base_mask = color_type::base_mask,
downscale_shift = image_filter_shift downscale_shift = image_filter_shift
@ -472,14 +547,18 @@ class span_image_resample_gray_affine : public span_image_resample_affine<Source
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_gray_affine() {} span_image_resample_gray_affine() {}
span_image_resample_gray_affine(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample_gray_affine(source_type& src,
: base_type(src, inter, filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
long_type fg; long_type fg;
@ -487,7 +566,9 @@ class span_image_resample_gray_affine : public span_image_resample_affine<Source
int filter_scale = diameter << image_subpixel_shift; int filter_scale = diameter << image_subpixel_shift;
int radius_x = (diameter * base_type::m_rx) >> 1; int radius_x = (diameter * base_type::m_rx) >> 1;
int radius_y = (diameter * base_type::m_ry) >> 1; int radius_y = (diameter * base_type::m_ry) >> 1;
int len_x_lr = (diameter * base_type::m_rx + image_subpixel_mask) >> image_subpixel_shift; int len_x_lr =
(diameter * base_type::m_rx + image_subpixel_mask) >>
image_subpixel_shift;
const int16* weight_array = base_type::filter().weight_array(); const int16* weight_array = base_type::filter().weight_array();
@ -501,41 +582,42 @@ class span_image_resample_gray_affine : public span_image_resample_affine<Source
fg = image_filter_scale / 2; fg = image_filter_scale / 2;
int y_lr = y >> image_subpixel_shift; int y_lr = y >> image_subpixel_shift;
int y_hr = int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) *
((image_subpixel_mask - (y & image_subpixel_mask)) * base_type::m_ry_inv) >> image_subpixel_shift; base_type::m_ry_inv) >>
image_subpixel_shift;
int total_weight = 0; int total_weight = 0;
int x_lr = x >> image_subpixel_shift; int x_lr = x >> image_subpixel_shift;
int x_hr = int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) *
((image_subpixel_mask - (x & image_subpixel_mask)) * base_type::m_rx_inv) >> image_subpixel_shift; base_type::m_rx_inv) >>
image_subpixel_shift;
int x_hr2 = x_hr; int x_hr2 = x_hr;
const value_type* fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr); const value_type* fg_ptr =
(const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr);
for(;;) for(;;)
{ {
int weight_y = weight_array[y_hr]; int weight_y = weight_array[y_hr];
x_hr = x_hr2; x_hr = x_hr2;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> downscale_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
downscale_shift;
fg += *fg_ptr * weight; fg += *fg_ptr * weight;
total_weight += weight; total_weight += weight;
x_hr += base_type::m_rx_inv; x_hr += base_type::m_rx_inv;
if (x_hr >= filter_scale) if(x_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
y_hr += base_type::m_ry_inv; y_hr += base_type::m_ry_inv;
if (y_hr >= filter_scale) if(y_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
fg /= total_weight; fg /= total_weight;
if (fg < 0) if(fg < 0) fg = 0;
fg = 0; if(fg > base_mask) fg = base_mask;
if (fg > base_mask)
fg = base_mask;
span->v = (value_type)fg; span->v = (value_type)fg;
span->a = base_mask; span->a = base_mask;
@ -546,9 +628,12 @@ class span_image_resample_gray_affine : public span_image_resample_affine<Source
} }
}; };
//================================================span_image_resample_gray //================================================span_image_resample_gray
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_resample_gray : public span_image_resample<Source, Interpolator> class span_image_resample_gray :
public span_image_resample<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -557,7 +642,8 @@ class span_image_resample_gray : public span_image_resample<Source, Interpolator
typedef span_image_resample<source_type, interpolator_type> base_type; typedef span_image_resample<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::long_type long_type; typedef typename color_type::long_type long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = color_type::base_shift, base_shift = color_type::base_shift,
base_mask = color_type::base_mask, base_mask = color_type::base_mask,
downscale_shift = image_filter_shift downscale_shift = image_filter_shift
@ -565,14 +651,17 @@ class span_image_resample_gray : public span_image_resample<Source, Interpolator
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_gray() {} span_image_resample_gray() {}
span_image_resample_gray(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample_gray(source_type& src,
: base_type(src, inter, filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
long_type fg; long_type fg;
int diameter = base_type::filter().diameter(); int diameter = base_type::filter().diameter();
@ -594,7 +683,9 @@ class span_image_resample_gray : public span_image_resample<Source, Interpolator
int radius_x = (diameter * rx) >> 1; int radius_x = (diameter * rx) >> 1;
int radius_y = (diameter * ry) >> 1; int radius_y = (diameter * ry) >> 1;
int len_x_lr = (diameter * rx + image_subpixel_mask) >> image_subpixel_shift; int len_x_lr =
(diameter * rx + image_subpixel_mask) >>
image_subpixel_shift;
x += base_type::filter_dx_int() - radius_x; x += base_type::filter_dx_int() - radius_x;
y += base_type::filter_dy_int() - radius_y; y += base_type::filter_dy_int() - radius_y;
@ -602,12 +693,17 @@ class span_image_resample_gray : public span_image_resample<Source, Interpolator
fg = image_filter_scale / 2; fg = image_filter_scale / 2;
int y_lr = y >> image_subpixel_shift; int y_lr = y >> image_subpixel_shift;
int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) * ry_inv) >> image_subpixel_shift; int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) *
ry_inv) >>
image_subpixel_shift;
int total_weight = 0; int total_weight = 0;
int x_lr = x >> image_subpixel_shift; int x_lr = x >> image_subpixel_shift;
int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) * rx_inv) >> image_subpixel_shift; int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) *
rx_inv) >>
image_subpixel_shift;
int x_hr2 = x_hr; int x_hr2 = x_hr;
const value_type* fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr); const value_type* fg_ptr =
(const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr);
for(;;) for(;;)
{ {
@ -615,25 +711,23 @@ class span_image_resample_gray : public span_image_resample<Source, Interpolator
x_hr = x_hr2; x_hr = x_hr2;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> downscale_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
downscale_shift;
fg += *fg_ptr * weight; fg += *fg_ptr * weight;
total_weight += weight; total_weight += weight;
x_hr += rx_inv; x_hr += rx_inv;
if (x_hr >= filter_scale) if(x_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
y_hr += ry_inv; y_hr += ry_inv;
if (y_hr >= filter_scale) if(y_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
fg /= total_weight; fg /= total_weight;
if (fg < 0) if(fg < 0) fg = 0;
fg = 0; if(fg > base_mask) fg = base_mask;
if (fg > base_mask)
fg = base_mask;
span->v = (value_type)fg; span->v = (value_type)fg;
span->a = base_mask; span->a = base_mask;
@ -644,6 +738,11 @@ class span_image_resample_gray : public span_image_resample<Source, Interpolator
} }
}; };
} // namespace agg
}
#endif #endif

View file

@ -27,11 +27,14 @@
#include "agg_color_rgba.h" #include "agg_color_rgba.h"
#include "agg_span_image_filter.h" #include "agg_span_image_filter.h"
namespace agg {
namespace agg
{
//===============================================span_image_filter_rgb_nn //===============================================span_image_filter_rgb_nn
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgb_nn : public span_image_filter<Source, Interpolator> class span_image_filter_rgb_nn :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -41,23 +44,31 @@ class span_image_filter_rgb_nn : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgb_nn() {} span_image_filter_rgb_nn() {}
span_image_filter_rgb_nn(source_type& src, interpolator_type& inter) span_image_filter_rgb_nn(source_type& src,
: base_type(src, inter, 0) interpolator_type& inter) :
base_type(src, inter, 0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
do do
{ {
base_type::interpolator().coordinates(&x, &y); base_type::interpolator().coordinates(&x, &y);
const value_type* fg_ptr = const value_type* fg_ptr = (const value_type*)
(const value_type*)base_type::source().span(x >> image_subpixel_shift, y >> image_subpixel_shift, 1); base_type::source().span(x >> image_subpixel_shift,
y >> image_subpixel_shift,
1);
span->r = fg_ptr[order_type::R]; span->r = fg_ptr[order_type::R];
span->g = fg_ptr[order_type::G]; span->g = fg_ptr[order_type::G];
span->b = fg_ptr[order_type::B]; span->b = fg_ptr[order_type::B];
@ -69,9 +80,12 @@ class span_image_filter_rgb_nn : public span_image_filter<Source, Interpolator>
} }
}; };
//==========================================span_image_filter_rgb_bilinear //==========================================span_image_filter_rgb_bilinear
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgb_bilinear : public span_image_filter<Source, Interpolator> class span_image_filter_rgb_bilinear :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -81,18 +95,25 @@ class span_image_filter_rgb_bilinear : public span_image_filter<Source, Interpol
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgb_bilinear() {} span_image_filter_rgb_bilinear() {}
span_image_filter_rgb_bilinear(source_type& src, interpolator_type& inter) span_image_filter_rgb_bilinear(source_type& src,
: base_type(src, inter, 0) interpolator_type& inter) :
base_type(src, inter, 0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg[3]; calc_type fg[3];
const value_type *fg_ptr; const value_type *fg_ptr;
do do
@ -110,13 +131,16 @@ class span_image_filter_rgb_bilinear : public span_image_filter<Source, Interpol
unsigned weight; unsigned weight;
fg[0] = fg[1] = fg[2] = image_subpixel_scale * image_subpixel_scale / 2; fg[0] =
fg[1] =
fg[2] = image_subpixel_scale * image_subpixel_scale / 2;
x_hr &= image_subpixel_mask; x_hr &= image_subpixel_mask;
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2); fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2);
weight = (image_subpixel_scale - x_hr) * (image_subpixel_scale - y_hr); weight = (image_subpixel_scale - x_hr) *
(image_subpixel_scale - y_hr);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr; fg[2] += weight * *fg_ptr;
@ -151,9 +175,12 @@ class span_image_filter_rgb_bilinear : public span_image_filter<Source, Interpol
} }
}; };
//=====================================span_image_filter_rgb_bilinear_clip //=====================================span_image_filter_rgb_bilinear_clip
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Interpolator> class span_image_filter_rgb_bilinear_clip :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -163,13 +190,19 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgb_bilinear_clip() {} span_image_filter_rgb_bilinear_clip() {}
span_image_filter_rgb_bilinear_clip(source_type& src, const color_type& back_color, interpolator_type& inter) span_image_filter_rgb_bilinear_clip(source_type& src,
: base_type(src, inter, 0) const color_type& back_color,
, m_back_color(back_color) interpolator_type& inter) :
base_type(src, inter, 0),
m_back_color(back_color)
{} {}
const color_type& background_color() const { return m_back_color; } const color_type& background_color() const { return m_back_color; }
void background_color(const color_type& v) { m_back_color = v; } void background_color(const color_type& v) { m_back_color = v; }
@ -177,7 +210,8 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg[3]; calc_type fg[3];
calc_type src_alpha; calc_type src_alpha;
value_type back_r = m_back_color.r; value_type back_r = m_back_color.r;
@ -204,16 +238,21 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
int y_lr = y_hr >> image_subpixel_shift; int y_lr = y_hr >> image_subpixel_shift;
unsigned weight; unsigned weight;
if (x_lr >= 0 && y_lr >= 0 && x_lr < maxx && y_lr < maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr < maxx && y_lr < maxy)
{ {
fg[0] = fg[1] = fg[2] = image_subpixel_scale * image_subpixel_scale / 2; fg[0] =
fg[1] =
fg[2] = image_subpixel_scale * image_subpixel_scale / 2;
x_hr &= image_subpixel_mask; x_hr &= image_subpixel_mask;
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr; fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr;
weight = (image_subpixel_scale - x_hr) * (image_subpixel_scale - y_hr); weight = (image_subpixel_scale - x_hr) *
(image_subpixel_scale - y_hr);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr++; fg[2] += weight * *fg_ptr++;
@ -224,7 +263,8 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
fg[2] += weight * *fg_ptr++; fg[2] += weight * *fg_ptr++;
++y_lr; ++y_lr;
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr; fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr;
weight = (image_subpixel_scale - x_hr) * y_hr; weight = (image_subpixel_scale - x_hr) * y_hr;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
@ -243,7 +283,8 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
} }
else else
{ {
if (x_lr < -1 || y_lr < -1 || x_lr > maxx || y_lr > maxy) if(x_lr < -1 || y_lr < -1 ||
x_lr > maxx || y_lr > maxy)
{ {
fg[order_type::R] = back_r; fg[order_type::R] = back_r;
fg[order_type::G] = back_g; fg[order_type::G] = back_g;
@ -252,15 +293,21 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
} }
else else
{ {
fg[0] = fg[1] = fg[2] = src_alpha = image_subpixel_scale * image_subpixel_scale / 2; fg[0] =
fg[1] =
fg[2] =
src_alpha = image_subpixel_scale * image_subpixel_scale / 2;
x_hr &= image_subpixel_mask; x_hr &= image_subpixel_mask;
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
weight = (image_subpixel_scale - x_hr) * (image_subpixel_scale - y_hr); weight = (image_subpixel_scale - x_hr) *
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) (image_subpixel_scale - y_hr);
if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr; fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -278,9 +325,11 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
x_lr++; x_lr++;
weight = x_hr * (image_subpixel_scale - y_hr); weight = x_hr * (image_subpixel_scale - y_hr);
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr; fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -299,9 +348,11 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
y_lr++; y_lr++;
weight = (image_subpixel_scale - x_hr) * y_hr; weight = (image_subpixel_scale - x_hr) * y_hr;
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr; fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -319,9 +370,11 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
x_lr++; x_lr++;
weight = x_hr * y_hr; weight = x_hr * y_hr;
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr; fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + x_lr + x_lr + x_lr;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -352,14 +405,16 @@ class span_image_filter_rgb_bilinear_clip : public span_image_filter<Source, Int
} while(--len); } while(--len);
} }
private: private:
color_type m_back_color; color_type m_back_color;
}; };
//===============================================span_image_filter_rgb_2x2 //===============================================span_image_filter_rgb_2x2
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgb_2x2 : public span_image_filter<Source, Interpolator> class span_image_filter_rgb_2x2 :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -369,24 +424,33 @@ class span_image_filter_rgb_2x2 : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgb_2x2() {} span_image_filter_rgb_2x2() {}
span_image_filter_rgb_2x2(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_filter_rgb_2x2(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, &filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg[3]; calc_type fg[3];
const value_type *fg_ptr; const value_type *fg_ptr;
const int16* weight_array = const int16* weight_array = base_type::filter().weight_array() +
base_type::filter().weight_array() + ((base_type::filter().diameter() / 2 - 1) << image_subpixel_shift); ((base_type::filter().diameter()/2 - 1) <<
image_subpixel_shift);
do do
{ {
int x_hr; int x_hr;
@ -407,7 +471,8 @@ class span_image_filter_rgb_2x2 : public span_image_filter<Source, Interpolator>
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2); fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2);
weight = (weight_array[x_hr + image_subpixel_scale] * weight_array[y_hr + image_subpixel_scale] + weight = (weight_array[x_hr + image_subpixel_scale] *
weight_array[y_hr + image_subpixel_scale] +
image_filter_scale / 2) >> image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
@ -415,21 +480,28 @@ class span_image_filter_rgb_2x2 : public span_image_filter<Source, Interpolator>
fg[2] += weight * *fg_ptr; fg[2] += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
weight = (weight_array[x_hr] * weight_array[y_hr + image_subpixel_scale] + image_filter_scale / 2) >> weight = (weight_array[x_hr] *
weight_array[y_hr + image_subpixel_scale] +
image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr; fg[2] += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
weight = (weight_array[x_hr + image_subpixel_scale] * weight_array[y_hr] + image_filter_scale / 2) >> weight = (weight_array[x_hr + image_subpixel_scale] *
weight_array[y_hr] +
image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr; fg[2] += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
weight = (weight_array[x_hr] * weight_array[y_hr] + image_filter_scale / 2) >> image_filter_shift; weight = (weight_array[x_hr] *
weight_array[y_hr] +
image_filter_scale / 2) >>
image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr; fg[2] += weight * *fg_ptr;
@ -438,12 +510,9 @@ class span_image_filter_rgb_2x2 : public span_image_filter<Source, Interpolator>
fg[1] >>= image_filter_shift; fg[1] >>= image_filter_shift;
fg[2] >>= image_filter_shift; fg[2] >>= image_filter_shift;
if (fg[order_type::R] > base_mask) if(fg[order_type::R] > base_mask) fg[order_type::R] = base_mask;
fg[order_type::R] = base_mask; if(fg[order_type::G] > base_mask) fg[order_type::G] = base_mask;
if (fg[order_type::G] > base_mask) if(fg[order_type::B] > base_mask) fg[order_type::B] = base_mask;
fg[order_type::G] = base_mask;
if (fg[order_type::B] > base_mask)
fg[order_type::B] = base_mask;
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -457,9 +526,12 @@ class span_image_filter_rgb_2x2 : public span_image_filter<Source, Interpolator>
} }
}; };
//===================================================span_image_filter_rgb //===================================================span_image_filter_rgb
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgb : public span_image_filter<Source, Interpolator> class span_image_filter_rgb :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -469,18 +541,25 @@ class span_image_filter_rgb : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgb() {} span_image_filter_rgb() {}
span_image_filter_rgb(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_filter_rgb(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, &filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
int fg[3]; int fg[3];
const value_type *fg_ptr; const value_type *fg_ptr;
@ -511,7 +590,9 @@ class span_image_filter_rgb : public span_image_filter<Source, Interpolator>
unsigned y_count = diameter; unsigned y_count = diameter;
y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask); y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask);
fg_ptr = (const value_type*)base_type::source().span(x_lr + start, y_lr + start, diameter); fg_ptr = (const value_type*)base_type::source().span(x_lr + start,
y_lr + start,
diameter);
for(;;) for(;;)
{ {
x_count = diameter; x_count = diameter;
@ -519,20 +600,20 @@ class span_image_filter_rgb : public span_image_filter<Source, Interpolator>
x_hr = image_subpixel_mask - x_fract; x_hr = image_subpixel_mask - x_fract;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> image_filter_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr; fg[2] += weight * *fg_ptr;
if (--x_count == 0) if(--x_count == 0) break;
break;
x_hr += image_subpixel_scale; x_hr += image_subpixel_scale;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
if (--y_count == 0) if(--y_count == 0) break;
break;
y_hr += image_subpixel_scale; y_hr += image_subpixel_scale;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
@ -541,19 +622,13 @@ class span_image_filter_rgb : public span_image_filter<Source, Interpolator>
fg[1] >>= image_filter_shift; fg[1] >>= image_filter_shift;
fg[2] >>= image_filter_shift; fg[2] >>= image_filter_shift;
if (fg[0] < 0) if(fg[0] < 0) fg[0] = 0;
fg[0] = 0; if(fg[1] < 0) fg[1] = 0;
if (fg[1] < 0) if(fg[2] < 0) fg[2] = 0;
fg[1] = 0;
if (fg[2] < 0)
fg[2] = 0;
if (fg[order_type::R] > base_mask) if(fg[order_type::R] > base_mask) fg[order_type::R] = base_mask;
fg[order_type::R] = base_mask; if(fg[order_type::G] > base_mask) fg[order_type::G] = base_mask;
if (fg[order_type::G] > base_mask) if(fg[order_type::B] > base_mask) fg[order_type::B] = base_mask;
fg[order_type::G] = base_mask;
if (fg[order_type::B] > base_mask)
fg[order_type::B] = base_mask;
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -567,9 +642,12 @@ class span_image_filter_rgb : public span_image_filter<Source, Interpolator>
} }
}; };
//==========================================span_image_resample_rgb_affine //==========================================span_image_resample_rgb_affine
template<class Source> template<class Source>
class span_image_resample_rgb_affine : public span_image_resample_affine<Source> class span_image_resample_rgb_affine :
public span_image_resample_affine<Source>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -579,7 +657,8 @@ class span_image_resample_rgb_affine : public span_image_resample_affine<Source>
typedef typename base_type::interpolator_type interpolator_type; typedef typename base_type::interpolator_type interpolator_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::long_type long_type; typedef typename color_type::long_type long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = color_type::base_shift, base_shift = color_type::base_shift,
base_mask = color_type::base_mask, base_mask = color_type::base_mask,
downscale_shift = image_filter_shift downscale_shift = image_filter_shift
@ -587,14 +666,18 @@ class span_image_resample_rgb_affine : public span_image_resample_affine<Source>
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_rgb_affine() {} span_image_resample_rgb_affine() {}
span_image_resample_rgb_affine(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample_rgb_affine(source_type& src,
: base_type(src, inter, filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
long_type fg[3]; long_type fg[3];
@ -602,7 +685,9 @@ class span_image_resample_rgb_affine : public span_image_resample_affine<Source>
int filter_scale = diameter << image_subpixel_shift; int filter_scale = diameter << image_subpixel_shift;
int radius_x = (diameter * base_type::m_rx) >> 1; int radius_x = (diameter * base_type::m_rx) >> 1;
int radius_y = (diameter * base_type::m_ry) >> 1; int radius_y = (diameter * base_type::m_ry) >> 1;
int len_x_lr = (diameter * base_type::m_rx + image_subpixel_mask) >> image_subpixel_shift; int len_x_lr =
(diameter * base_type::m_rx + image_subpixel_mask) >>
image_subpixel_shift;
const int16* weight_array = base_type::filter().weight_array(); const int16* weight_array = base_type::filter().weight_array();
@ -616,35 +701,38 @@ class span_image_resample_rgb_affine : public span_image_resample_affine<Source>
fg[0] = fg[1] = fg[2] = image_filter_scale / 2; fg[0] = fg[1] = fg[2] = image_filter_scale / 2;
int y_lr = y >> image_subpixel_shift; int y_lr = y >> image_subpixel_shift;
int y_hr = int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) *
((image_subpixel_mask - (y & image_subpixel_mask)) * base_type::m_ry_inv) >> image_subpixel_shift; base_type::m_ry_inv) >>
image_subpixel_shift;
int total_weight = 0; int total_weight = 0;
int x_lr = x >> image_subpixel_shift; int x_lr = x >> image_subpixel_shift;
int x_hr = int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) *
((image_subpixel_mask - (x & image_subpixel_mask)) * base_type::m_rx_inv) >> image_subpixel_shift; base_type::m_rx_inv) >>
image_subpixel_shift;
int x_hr2 = x_hr; int x_hr2 = x_hr;
const value_type* fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr); const value_type* fg_ptr =
(const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr);
for(;;) for(;;)
{ {
int weight_y = weight_array[y_hr]; int weight_y = weight_array[y_hr];
x_hr = x_hr2; x_hr = x_hr2;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> downscale_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
downscale_shift;
fg[0] += *fg_ptr++ * weight; fg[0] += *fg_ptr++ * weight;
fg[1] += *fg_ptr++ * weight; fg[1] += *fg_ptr++ * weight;
fg[2] += *fg_ptr * weight; fg[2] += *fg_ptr * weight;
total_weight += weight; total_weight += weight;
x_hr += base_type::m_rx_inv; x_hr += base_type::m_rx_inv;
if (x_hr >= filter_scale) if(x_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
y_hr += base_type::m_ry_inv; y_hr += base_type::m_ry_inv;
if (y_hr >= filter_scale) if(y_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
@ -652,19 +740,13 @@ class span_image_resample_rgb_affine : public span_image_resample_affine<Source>
fg[1] /= total_weight; fg[1] /= total_weight;
fg[2] /= total_weight; fg[2] /= total_weight;
if (fg[0] < 0) if(fg[0] < 0) fg[0] = 0;
fg[0] = 0; if(fg[1] < 0) fg[1] = 0;
if (fg[1] < 0) if(fg[2] < 0) fg[2] = 0;
fg[1] = 0;
if (fg[2] < 0)
fg[2] = 0;
if (fg[order_type::R] > base_mask) if(fg[order_type::R] > base_mask) fg[order_type::R] = base_mask;
fg[order_type::R] = base_mask; if(fg[order_type::G] > base_mask) fg[order_type::G] = base_mask;
if (fg[order_type::G] > base_mask) if(fg[order_type::B] > base_mask) fg[order_type::B] = base_mask;
fg[order_type::G] = base_mask;
if (fg[order_type::B] > base_mask)
fg[order_type::B] = base_mask;
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -677,9 +759,12 @@ class span_image_resample_rgb_affine : public span_image_resample_affine<Source>
} }
}; };
//=================================================span_image_resample_rgb //=================================================span_image_resample_rgb
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_resample_rgb : public span_image_resample<Source, Interpolator> class span_image_resample_rgb :
public span_image_resample<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -689,7 +774,8 @@ class span_image_resample_rgb : public span_image_resample<Source, Interpolator>
typedef span_image_resample<source_type, interpolator_type> base_type; typedef span_image_resample<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::long_type long_type; typedef typename color_type::long_type long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = color_type::base_shift, base_shift = color_type::base_shift,
base_mask = color_type::base_mask, base_mask = color_type::base_mask,
downscale_shift = image_filter_shift downscale_shift = image_filter_shift
@ -697,14 +783,17 @@ class span_image_resample_rgb : public span_image_resample<Source, Interpolator>
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_rgb() {} span_image_resample_rgb() {}
span_image_resample_rgb(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample_rgb(source_type& src,
: base_type(src, inter, filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
long_type fg[3]; long_type fg[3];
int diameter = base_type::filter().diameter(); int diameter = base_type::filter().diameter();
@ -726,7 +815,9 @@ class span_image_resample_rgb : public span_image_resample<Source, Interpolator>
int radius_x = (diameter * rx) >> 1; int radius_x = (diameter * rx) >> 1;
int radius_y = (diameter * ry) >> 1; int radius_y = (diameter * ry) >> 1;
int len_x_lr = (diameter * rx + image_subpixel_mask) >> image_subpixel_shift; int len_x_lr =
(diameter * rx + image_subpixel_mask) >>
image_subpixel_shift;
x += base_type::filter_dx_int() - radius_x; x += base_type::filter_dx_int() - radius_x;
y += base_type::filter_dy_int() - radius_y; y += base_type::filter_dy_int() - radius_y;
@ -734,12 +825,17 @@ class span_image_resample_rgb : public span_image_resample<Source, Interpolator>
fg[0] = fg[1] = fg[2] = image_filter_scale / 2; fg[0] = fg[1] = fg[2] = image_filter_scale / 2;
int y_lr = y >> image_subpixel_shift; int y_lr = y >> image_subpixel_shift;
int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) * ry_inv) >> image_subpixel_shift; int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) *
ry_inv) >>
image_subpixel_shift;
int total_weight = 0; int total_weight = 0;
int x_lr = x >> image_subpixel_shift; int x_lr = x >> image_subpixel_shift;
int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) * rx_inv) >> image_subpixel_shift; int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) *
rx_inv) >>
image_subpixel_shift;
int x_hr2 = x_hr; int x_hr2 = x_hr;
const value_type* fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr); const value_type* fg_ptr =
(const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr);
for(;;) for(;;)
{ {
@ -747,19 +843,19 @@ class span_image_resample_rgb : public span_image_resample<Source, Interpolator>
x_hr = x_hr2; x_hr = x_hr2;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> downscale_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
downscale_shift;
fg[0] += *fg_ptr++ * weight; fg[0] += *fg_ptr++ * weight;
fg[1] += *fg_ptr++ * weight; fg[1] += *fg_ptr++ * weight;
fg[2] += *fg_ptr * weight; fg[2] += *fg_ptr * weight;
total_weight += weight; total_weight += weight;
x_hr += rx_inv; x_hr += rx_inv;
if (x_hr >= filter_scale) if(x_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
y_hr += ry_inv; y_hr += ry_inv;
if (y_hr >= filter_scale) if(y_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
@ -767,19 +863,13 @@ class span_image_resample_rgb : public span_image_resample<Source, Interpolator>
fg[1] /= total_weight; fg[1] /= total_weight;
fg[2] /= total_weight; fg[2] /= total_weight;
if (fg[0] < 0) if(fg[0] < 0) fg[0] = 0;
fg[0] = 0; if(fg[1] < 0) fg[1] = 0;
if (fg[1] < 0) if(fg[2] < 0) fg[2] = 0;
fg[1] = 0;
if (fg[2] < 0)
fg[2] = 0;
if (fg[order_type::R] > base_mask) if(fg[order_type::R] > base_mask) fg[order_type::R] = base_mask;
fg[order_type::R] = base_mask; if(fg[order_type::G] > base_mask) fg[order_type::G] = base_mask;
if (fg[order_type::G] > base_mask) if(fg[order_type::B] > base_mask) fg[order_type::B] = base_mask;
fg[order_type::G] = base_mask;
if (fg[order_type::B] > base_mask)
fg[order_type::B] = base_mask;
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -792,6 +882,11 @@ class span_image_resample_rgb : public span_image_resample<Source, Interpolator>
} }
}; };
} // namespace agg
}
#endif #endif

View file

@ -27,11 +27,14 @@
#include "agg_color_rgba.h" #include "agg_color_rgba.h"
#include "agg_span_image_filter.h" #include "agg_span_image_filter.h"
namespace agg {
namespace agg
{
//==============================================span_image_filter_rgba_nn //==============================================span_image_filter_rgba_nn
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgba_nn : public span_image_filter<Source, Interpolator> class span_image_filter_rgba_nn :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -41,23 +44,31 @@ class span_image_filter_rgba_nn : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgba_nn() {} span_image_filter_rgba_nn() {}
span_image_filter_rgba_nn(source_type& src, interpolator_type& inter) span_image_filter_rgba_nn(source_type& src,
: base_type(src, inter, 0) interpolator_type& inter) :
base_type(src, inter, 0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
do do
{ {
base_type::interpolator().coordinates(&x, &y); base_type::interpolator().coordinates(&x, &y);
const value_type* fg_ptr = const value_type* fg_ptr = (const value_type*)
(const value_type*)base_type::source().span(x >> image_subpixel_shift, y >> image_subpixel_shift, 1); base_type::source().span(x >> image_subpixel_shift,
y >> image_subpixel_shift,
1);
span->r = fg_ptr[order_type::R]; span->r = fg_ptr[order_type::R];
span->g = fg_ptr[order_type::G]; span->g = fg_ptr[order_type::G];
span->b = fg_ptr[order_type::B]; span->b = fg_ptr[order_type::B];
@ -69,9 +80,12 @@ class span_image_filter_rgba_nn : public span_image_filter<Source, Interpolator>
} }
}; };
//=========================================span_image_filter_rgba_bilinear //=========================================span_image_filter_rgba_bilinear
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgba_bilinear : public span_image_filter<Source, Interpolator> class span_image_filter_rgba_bilinear :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -81,18 +95,25 @@ class span_image_filter_rgba_bilinear : public span_image_filter<Source, Interpo
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgba_bilinear() {} span_image_filter_rgba_bilinear() {}
span_image_filter_rgba_bilinear(source_type& src, interpolator_type& inter) span_image_filter_rgba_bilinear(source_type& src,
: base_type(src, inter, 0) interpolator_type& inter) :
base_type(src, inter, 0)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg[4]; calc_type fg[4];
const value_type *fg_ptr; const value_type *fg_ptr;
@ -112,13 +133,17 @@ class span_image_filter_rgba_bilinear : public span_image_filter<Source, Interpo
unsigned weight; unsigned weight;
fg[0] = fg[1] = fg[2] = fg[3] = image_subpixel_scale * image_subpixel_scale / 2; fg[0] =
fg[1] =
fg[2] =
fg[3] = image_subpixel_scale * image_subpixel_scale / 2;
x_hr &= image_subpixel_mask; x_hr &= image_subpixel_mask;
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2); fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2);
weight = (image_subpixel_scale - x_hr) * (image_subpixel_scale - y_hr); weight = (image_subpixel_scale - x_hr) *
(image_subpixel_scale - y_hr);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr++; fg[2] += weight * *fg_ptr++;
@ -157,9 +182,11 @@ class span_image_filter_rgba_bilinear : public span_image_filter<Source, Interpo
} }
}; };
//====================================span_image_filter_rgba_bilinear_clip //====================================span_image_filter_rgba_bilinear_clip
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, Interpolator> class span_image_filter_rgba_bilinear_clip :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -169,21 +196,29 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgba_bilinear_clip() {} span_image_filter_rgba_bilinear_clip() {}
span_image_filter_rgba_bilinear_clip(source_type& src, const color_type& back_color, interpolator_type& inter) span_image_filter_rgba_bilinear_clip(source_type& src,
: base_type(src, inter, 0) const color_type& back_color,
, m_back_color(back_color) interpolator_type& inter) :
base_type(src, inter, 0),
m_back_color(back_color)
{} {}
const color_type& background_color() const { return m_back_color; } const color_type& background_color() const { return m_back_color; }
void background_color(const color_type& v) { m_back_color = v; } void background_color(const color_type& v) { m_back_color = v; }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg[4]; calc_type fg[4];
value_type back_r = m_back_color.r; value_type back_r = m_back_color.r;
@ -210,16 +245,22 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
unsigned weight; unsigned weight;
if (x_lr >= 0 && y_lr >= 0 && x_lr < maxx && y_lr < maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr < maxx && y_lr < maxy)
{ {
fg[0] = fg[1] = fg[2] = fg[3] = image_subpixel_scale * image_subpixel_scale / 2; fg[0] =
fg[1] =
fg[2] =
fg[3] = image_subpixel_scale * image_subpixel_scale / 2;
x_hr &= image_subpixel_mask; x_hr &= image_subpixel_mask;
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + (x_lr << 2); fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + (x_lr << 2);
weight = (image_subpixel_scale - x_hr) * (image_subpixel_scale - y_hr); weight = (image_subpixel_scale - x_hr) *
(image_subpixel_scale - y_hr);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr++; fg[2] += weight * *fg_ptr++;
@ -232,7 +273,8 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
fg[3] += weight * *fg_ptr++; fg[3] += weight * *fg_ptr++;
++y_lr; ++y_lr;
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + (x_lr << 2); fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + (x_lr << 2);
weight = (image_subpixel_scale - x_hr) * y_hr; weight = (image_subpixel_scale - x_hr) * y_hr;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
@ -253,7 +295,8 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
} }
else else
{ {
if (x_lr < -1 || y_lr < -1 || x_lr > maxx || y_lr > maxy) if(x_lr < -1 || y_lr < -1 ||
x_lr > maxx || y_lr > maxy)
{ {
fg[order_type::R] = back_r; fg[order_type::R] = back_r;
fg[order_type::G] = back_g; fg[order_type::G] = back_g;
@ -262,15 +305,21 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
} }
else else
{ {
fg[0] = fg[1] = fg[2] = fg[3] = image_subpixel_scale * image_subpixel_scale / 2; fg[0] =
fg[1] =
fg[2] =
fg[3] = image_subpixel_scale * image_subpixel_scale / 2;
x_hr &= image_subpixel_mask; x_hr &= image_subpixel_mask;
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
weight = (image_subpixel_scale - x_hr) * (image_subpixel_scale - y_hr); weight = (image_subpixel_scale - x_hr) *
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) (image_subpixel_scale - y_hr);
if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + (x_lr << 2); fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + (x_lr << 2);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -288,9 +337,11 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
x_lr++; x_lr++;
weight = x_hr * (image_subpixel_scale - y_hr); weight = x_hr * (image_subpixel_scale - y_hr);
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + (x_lr << 2); fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + (x_lr << 2);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -309,9 +360,11 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
y_lr++; y_lr++;
weight = (image_subpixel_scale - x_hr) * y_hr; weight = (image_subpixel_scale - x_hr) * y_hr;
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + (x_lr << 2); fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + (x_lr << 2);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -329,9 +382,11 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
x_lr++; x_lr++;
weight = x_hr * y_hr; weight = x_hr * y_hr;
if (x_lr >= 0 && y_lr >= 0 && x_lr <= maxx && y_lr <= maxy) if(x_lr >= 0 && y_lr >= 0 &&
x_lr <= maxx && y_lr <= maxy)
{ {
fg_ptr = (const value_type*)base_type::source().row_ptr(y_lr) + (x_lr << 2); fg_ptr = (const value_type*)
base_type::source().row_ptr(y_lr) + (x_lr << 2);
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -362,14 +417,15 @@ class span_image_filter_rgba_bilinear_clip : public span_image_filter<Source, In
} while(--len); } while(--len);
} }
private: private:
color_type m_back_color; color_type m_back_color;
}; };
//==============================================span_image_filter_rgba_2x2 //==============================================span_image_filter_rgba_2x2
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator> class span_image_filter_rgba_2x2 :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -379,24 +435,33 @@ class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgba_2x2() {} span_image_filter_rgba_2x2() {}
span_image_filter_rgba_2x2(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_filter_rgba_2x2(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, &filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
calc_type fg[4]; calc_type fg[4];
const value_type *fg_ptr; const value_type *fg_ptr;
const int16* weight_array = const int16* weight_array = base_type::filter().weight_array() +
base_type::filter().weight_array() + ((base_type::filter().diameter() / 2 - 1) << image_subpixel_shift); ((base_type::filter().diameter()/2 - 1) <<
image_subpixel_shift);
do do
{ {
@ -418,7 +483,8 @@ class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator
y_hr &= image_subpixel_mask; y_hr &= image_subpixel_mask;
fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2); fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, 2);
weight = (weight_array[x_hr + image_subpixel_scale] * weight_array[y_hr + image_subpixel_scale] + weight = (weight_array[x_hr + image_subpixel_scale] *
weight_array[y_hr + image_subpixel_scale] +
image_filter_scale / 2) >> image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
@ -427,7 +493,9 @@ class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator
fg[3] += weight * *fg_ptr; fg[3] += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
weight = (weight_array[x_hr] * weight_array[y_hr + image_subpixel_scale] + image_filter_scale / 2) >> weight = (weight_array[x_hr] *
weight_array[y_hr + image_subpixel_scale] +
image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -435,7 +503,9 @@ class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator
fg[3] += weight * *fg_ptr; fg[3] += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
weight = (weight_array[x_hr + image_subpixel_scale] * weight_array[y_hr] + image_filter_scale / 2) >> weight = (weight_array[x_hr + image_subpixel_scale] *
weight_array[y_hr] +
image_filter_scale / 2) >>
image_filter_shift; image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
@ -443,7 +513,10 @@ class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator
fg[3] += weight * *fg_ptr; fg[3] += weight * *fg_ptr;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
weight = (weight_array[x_hr] * weight_array[y_hr] + image_filter_scale / 2) >> image_filter_shift; weight = (weight_array[x_hr] *
weight_array[y_hr] +
image_filter_scale / 2) >>
image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr++; fg[2] += weight * *fg_ptr++;
@ -454,14 +527,10 @@ class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator
fg[2] >>= image_filter_shift; fg[2] >>= image_filter_shift;
fg[3] >>= image_filter_shift; fg[3] >>= image_filter_shift;
if (fg[order_type::A] > base_mask) if(fg[order_type::A] > base_mask) fg[order_type::A] = base_mask;
fg[order_type::A] = base_mask; if(fg[order_type::R] > fg[order_type::A]) fg[order_type::R] = fg[order_type::A];
if (fg[order_type::R] > fg[order_type::A]) if(fg[order_type::G] > fg[order_type::A]) fg[order_type::G] = fg[order_type::A];
fg[order_type::R] = fg[order_type::A]; if(fg[order_type::B] > fg[order_type::A]) fg[order_type::B] = fg[order_type::A];
if (fg[order_type::G] > fg[order_type::A])
fg[order_type::G] = fg[order_type::A];
if (fg[order_type::B] > fg[order_type::A])
fg[order_type::B] = fg[order_type::A];
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -474,9 +543,12 @@ class span_image_filter_rgba_2x2 : public span_image_filter<Source, Interpolator
} }
}; };
//==================================================span_image_filter_rgba //==================================================span_image_filter_rgba
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_filter_rgba : public span_image_filter<Source, Interpolator> class span_image_filter_rgba :
public span_image_filter<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -486,18 +558,25 @@ class span_image_filter_rgba : public span_image_filter<Source, Interpolator>
typedef span_image_filter<source_type, interpolator_type> base_type; typedef span_image_filter<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::calc_type calc_type; typedef typename color_type::calc_type calc_type;
enum base_scale_e { base_shift = color_type::base_shift, base_mask = color_type::base_mask }; enum base_scale_e
{
base_shift = color_type::base_shift,
base_mask = color_type::base_mask
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_filter_rgba() {} span_image_filter_rgba() {}
span_image_filter_rgba(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_filter_rgba(source_type& src,
: base_type(src, inter, &filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, &filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
int fg[4]; int fg[4];
const value_type *fg_ptr; const value_type *fg_ptr;
@ -528,7 +607,9 @@ class span_image_filter_rgba : public span_image_filter<Source, Interpolator>
unsigned y_count = diameter; unsigned y_count = diameter;
y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask); y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask);
fg_ptr = (const value_type*)base_type::source().span(x_lr + start, y_lr + start, diameter); fg_ptr = (const value_type*)base_type::source().span(x_lr + start,
y_lr + start,
diameter);
for(;;) for(;;)
{ {
x_count = diameter; x_count = diameter;
@ -536,21 +617,21 @@ class span_image_filter_rgba : public span_image_filter<Source, Interpolator>
x_hr = image_subpixel_mask - x_fract; x_hr = image_subpixel_mask - x_fract;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> image_filter_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
image_filter_shift;
fg[0] += weight * *fg_ptr++; fg[0] += weight * *fg_ptr++;
fg[1] += weight * *fg_ptr++; fg[1] += weight * *fg_ptr++;
fg[2] += weight * *fg_ptr++; fg[2] += weight * *fg_ptr++;
fg[3] += weight * *fg_ptr; fg[3] += weight * *fg_ptr;
if (--x_count == 0) if(--x_count == 0) break;
break;
x_hr += image_subpixel_scale; x_hr += image_subpixel_scale;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
if (--y_count == 0) if(--y_count == 0) break;
break;
y_hr += image_subpixel_scale; y_hr += image_subpixel_scale;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
@ -560,23 +641,15 @@ class span_image_filter_rgba : public span_image_filter<Source, Interpolator>
fg[2] >>= image_filter_shift; fg[2] >>= image_filter_shift;
fg[3] >>= image_filter_shift; fg[3] >>= image_filter_shift;
if (fg[0] < 0) if(fg[0] < 0) fg[0] = 0;
fg[0] = 0; if(fg[1] < 0) fg[1] = 0;
if (fg[1] < 0) if(fg[2] < 0) fg[2] = 0;
fg[1] = 0; if(fg[3] < 0) fg[3] = 0;
if (fg[2] < 0)
fg[2] = 0;
if (fg[3] < 0)
fg[3] = 0;
if (fg[order_type::A] > base_mask) if(fg[order_type::A] > base_mask) fg[order_type::A] = base_mask;
fg[order_type::A] = base_mask; if(fg[order_type::R] > fg[order_type::A]) fg[order_type::R] = fg[order_type::A];
if (fg[order_type::R] > fg[order_type::A]) if(fg[order_type::G] > fg[order_type::A]) fg[order_type::G] = fg[order_type::A];
fg[order_type::R] = fg[order_type::A]; if(fg[order_type::B] > fg[order_type::A]) fg[order_type::B] = fg[order_type::A];
if (fg[order_type::G] > fg[order_type::A])
fg[order_type::G] = fg[order_type::A];
if (fg[order_type::B] > fg[order_type::A])
fg[order_type::B] = fg[order_type::A];
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -589,9 +662,12 @@ class span_image_filter_rgba : public span_image_filter<Source, Interpolator>
} }
}; };
//========================================span_image_resample_rgba_affine //========================================span_image_resample_rgba_affine
template<class Source> template<class Source>
class span_image_resample_rgba_affine : public span_image_resample_affine<Source> class span_image_resample_rgba_affine :
public span_image_resample_affine<Source>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -601,7 +677,8 @@ class span_image_resample_rgba_affine : public span_image_resample_affine<Source
typedef typename base_type::interpolator_type interpolator_type; typedef typename base_type::interpolator_type interpolator_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::long_type long_type; typedef typename color_type::long_type long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = color_type::base_shift, base_shift = color_type::base_shift,
base_mask = color_type::base_mask, base_mask = color_type::base_mask,
downscale_shift = image_filter_shift downscale_shift = image_filter_shift
@ -609,14 +686,18 @@ class span_image_resample_rgba_affine : public span_image_resample_affine<Source
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_rgba_affine() {} span_image_resample_rgba_affine() {}
span_image_resample_rgba_affine(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample_rgba_affine(source_type& src,
: base_type(src, inter, filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
long_type fg[4]; long_type fg[4];
@ -624,7 +705,9 @@ class span_image_resample_rgba_affine : public span_image_resample_affine<Source
int filter_scale = diameter << image_subpixel_shift; int filter_scale = diameter << image_subpixel_shift;
int radius_x = (diameter * base_type::m_rx) >> 1; int radius_x = (diameter * base_type::m_rx) >> 1;
int radius_y = (diameter * base_type::m_ry) >> 1; int radius_y = (diameter * base_type::m_ry) >> 1;
int len_x_lr = (diameter * base_type::m_rx + image_subpixel_mask) >> image_subpixel_shift; int len_x_lr =
(diameter * base_type::m_rx + image_subpixel_mask) >>
image_subpixel_shift;
const int16* weight_array = base_type::filter().weight_array(); const int16* weight_array = base_type::filter().weight_array();
@ -638,22 +721,27 @@ class span_image_resample_rgba_affine : public span_image_resample_affine<Source
fg[0] = fg[1] = fg[2] = fg[3] = image_filter_scale / 2; fg[0] = fg[1] = fg[2] = fg[3] = image_filter_scale / 2;
int y_lr = y >> image_subpixel_shift; int y_lr = y >> image_subpixel_shift;
int y_hr = int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) *
((image_subpixel_mask - (y & image_subpixel_mask)) * base_type::m_ry_inv) >> image_subpixel_shift; base_type::m_ry_inv) >>
image_subpixel_shift;
int total_weight = 0; int total_weight = 0;
int x_lr = x >> image_subpixel_shift; int x_lr = x >> image_subpixel_shift;
int x_hr = int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) *
((image_subpixel_mask - (x & image_subpixel_mask)) * base_type::m_rx_inv) >> image_subpixel_shift; base_type::m_rx_inv) >>
image_subpixel_shift;
int x_hr2 = x_hr; int x_hr2 = x_hr;
const value_type* fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr); const value_type* fg_ptr =
(const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr);
for(;;) for(;;)
{ {
int weight_y = weight_array[y_hr]; int weight_y = weight_array[y_hr];
x_hr = x_hr2; x_hr = x_hr2;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> downscale_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
downscale_shift;
fg[0] += *fg_ptr++ * weight; fg[0] += *fg_ptr++ * weight;
fg[1] += *fg_ptr++ * weight; fg[1] += *fg_ptr++ * weight;
@ -661,13 +749,11 @@ class span_image_resample_rgba_affine : public span_image_resample_affine<Source
fg[3] += *fg_ptr++ * weight; fg[3] += *fg_ptr++ * weight;
total_weight += weight; total_weight += weight;
x_hr += base_type::m_rx_inv; x_hr += base_type::m_rx_inv;
if (x_hr >= filter_scale) if(x_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
y_hr += base_type::m_ry_inv; y_hr += base_type::m_ry_inv;
if (y_hr >= filter_scale) if(y_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
@ -676,23 +762,15 @@ class span_image_resample_rgba_affine : public span_image_resample_affine<Source
fg[2] /= total_weight; fg[2] /= total_weight;
fg[3] /= total_weight; fg[3] /= total_weight;
if (fg[0] < 0) if(fg[0] < 0) fg[0] = 0;
fg[0] = 0; if(fg[1] < 0) fg[1] = 0;
if (fg[1] < 0) if(fg[2] < 0) fg[2] = 0;
fg[1] = 0; if(fg[3] < 0) fg[3] = 0;
if (fg[2] < 0)
fg[2] = 0;
if (fg[3] < 0)
fg[3] = 0;
if (fg[order_type::A] > base_mask) if(fg[order_type::A] > base_mask) fg[order_type::A] = base_mask;
fg[order_type::A] = base_mask; if(fg[order_type::R] > fg[order_type::A]) fg[order_type::R] = fg[order_type::A];
if (fg[order_type::R] > fg[order_type::A]) if(fg[order_type::G] > fg[order_type::A]) fg[order_type::G] = fg[order_type::A];
fg[order_type::R] = fg[order_type::A]; if(fg[order_type::B] > fg[order_type::A]) fg[order_type::B] = fg[order_type::A];
if (fg[order_type::G] > fg[order_type::A])
fg[order_type::G] = fg[order_type::A];
if (fg[order_type::B] > fg[order_type::A])
fg[order_type::B] = fg[order_type::A];
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -705,9 +783,12 @@ class span_image_resample_rgba_affine : public span_image_resample_affine<Source
} }
}; };
//==============================================span_image_resample_rgba //==============================================span_image_resample_rgba
template<class Source, class Interpolator> template<class Source, class Interpolator>
class span_image_resample_rgba : public span_image_resample<Source, Interpolator> class span_image_resample_rgba :
public span_image_resample<Source, Interpolator>
{ {
public: public:
typedef Source source_type; typedef Source source_type;
@ -717,7 +798,8 @@ class span_image_resample_rgba : public span_image_resample<Source, Interpolator
typedef span_image_resample<source_type, interpolator_type> base_type; typedef span_image_resample<source_type, interpolator_type> base_type;
typedef typename color_type::value_type value_type; typedef typename color_type::value_type value_type;
typedef typename color_type::long_type long_type; typedef typename color_type::long_type long_type;
enum base_scale_e { enum base_scale_e
{
base_shift = color_type::base_shift, base_shift = color_type::base_shift,
base_mask = color_type::base_mask, base_mask = color_type::base_mask,
downscale_shift = image_filter_shift downscale_shift = image_filter_shift
@ -725,14 +807,17 @@ class span_image_resample_rgba : public span_image_resample<Source, Interpolator
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_image_resample_rgba() {} span_image_resample_rgba() {}
span_image_resample_rgba(source_type& src, interpolator_type& inter, const image_filter_lut& filter) span_image_resample_rgba(source_type& src,
: base_type(src, inter, filter) interpolator_type& inter,
const image_filter_lut& filter) :
base_type(src, inter, filter)
{} {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void generate(color_type* span, int x, int y, unsigned len) void generate(color_type* span, int x, int y, unsigned len)
{ {
base_type::interpolator().begin(x + base_type::filter_dx_dbl(), y + base_type::filter_dy_dbl(), len); base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
y + base_type::filter_dy_dbl(), len);
long_type fg[4]; long_type fg[4];
int diameter = base_type::filter().diameter(); int diameter = base_type::filter().diameter();
@ -754,7 +839,9 @@ class span_image_resample_rgba : public span_image_resample<Source, Interpolator
int radius_x = (diameter * rx) >> 1; int radius_x = (diameter * rx) >> 1;
int radius_y = (diameter * ry) >> 1; int radius_y = (diameter * ry) >> 1;
int len_x_lr = (diameter * rx + image_subpixel_mask) >> image_subpixel_shift; int len_x_lr =
(diameter * rx + image_subpixel_mask) >>
image_subpixel_shift;
x += base_type::filter_dx_int() - radius_x; x += base_type::filter_dx_int() - radius_x;
y += base_type::filter_dy_int() - radius_y; y += base_type::filter_dy_int() - radius_y;
@ -762,12 +849,17 @@ class span_image_resample_rgba : public span_image_resample<Source, Interpolator
fg[0] = fg[1] = fg[2] = fg[3] = image_filter_scale / 2; fg[0] = fg[1] = fg[2] = fg[3] = image_filter_scale / 2;
int y_lr = y >> image_subpixel_shift; int y_lr = y >> image_subpixel_shift;
int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) * ry_inv) >> image_subpixel_shift; int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) *
ry_inv) >>
image_subpixel_shift;
int total_weight = 0; int total_weight = 0;
int x_lr = x >> image_subpixel_shift; int x_lr = x >> image_subpixel_shift;
int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) * rx_inv) >> image_subpixel_shift; int x_hr = ((image_subpixel_mask - (x & image_subpixel_mask)) *
rx_inv) >>
image_subpixel_shift;
int x_hr2 = x_hr; int x_hr2 = x_hr;
const value_type* fg_ptr = (const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr); const value_type* fg_ptr =
(const value_type*)base_type::source().span(x_lr, y_lr, len_x_lr);
for(;;) for(;;)
{ {
@ -775,20 +867,20 @@ class span_image_resample_rgba : public span_image_resample<Source, Interpolator
x_hr = x_hr2; x_hr = x_hr2;
for(;;) for(;;)
{ {
int weight = (weight_y * weight_array[x_hr] + image_filter_scale / 2) >> downscale_shift; int weight = (weight_y * weight_array[x_hr] +
image_filter_scale / 2) >>
downscale_shift;
fg[0] += *fg_ptr++ * weight; fg[0] += *fg_ptr++ * weight;
fg[1] += *fg_ptr++ * weight; fg[1] += *fg_ptr++ * weight;
fg[2] += *fg_ptr++ * weight; fg[2] += *fg_ptr++ * weight;
fg[3] += *fg_ptr++ * weight; fg[3] += *fg_ptr++ * weight;
total_weight += weight; total_weight += weight;
x_hr += rx_inv; x_hr += rx_inv;
if (x_hr >= filter_scale) if(x_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_x(); fg_ptr = (const value_type*)base_type::source().next_x();
} }
y_hr += ry_inv; y_hr += ry_inv;
if (y_hr >= filter_scale) if(y_hr >= filter_scale) break;
break;
fg_ptr = (const value_type*)base_type::source().next_y(); fg_ptr = (const value_type*)base_type::source().next_y();
} }
@ -797,23 +889,15 @@ class span_image_resample_rgba : public span_image_resample<Source, Interpolator
fg[2] /= total_weight; fg[2] /= total_weight;
fg[3] /= total_weight; fg[3] /= total_weight;
if (fg[0] < 0) if(fg[0] < 0) fg[0] = 0;
fg[0] = 0; if(fg[1] < 0) fg[1] = 0;
if (fg[1] < 0) if(fg[2] < 0) fg[2] = 0;
fg[1] = 0; if(fg[3] < 0) fg[3] = 0;
if (fg[2] < 0)
fg[2] = 0;
if (fg[3] < 0)
fg[3] = 0;
if (fg[order_type::A] > base_mask) if(fg[order_type::A] > base_mask) fg[order_type::A] = base_mask;
fg[order_type::A] = base_mask; if(fg[order_type::R] > fg[order_type::A]) fg[order_type::R] = fg[order_type::A];
if (fg[order_type::R] > fg[order_type::A]) if(fg[order_type::G] > fg[order_type::A]) fg[order_type::G] = fg[order_type::A];
fg[order_type::R] = fg[order_type::A]; if(fg[order_type::B] > fg[order_type::A]) fg[order_type::B] = fg[order_type::A];
if (fg[order_type::G] > fg[order_type::A])
fg[order_type::G] = fg[order_type::A];
if (fg[order_type::B] > fg[order_type::A])
fg[order_type::B] = fg[order_type::A];
span->r = (value_type)fg[order_type::R]; span->r = (value_type)fg[order_type::R];
span->g = (value_type)fg[order_type::G]; span->g = (value_type)fg[order_type::G];
@ -826,6 +910,11 @@ class span_image_resample_rgba : public span_image_resample<Source, Interpolator
} }
}; };
} // namespace agg
}
#endif #endif

View file

@ -18,7 +18,8 @@
#include "agg_basics.h" #include "agg_basics.h"
namespace agg { namespace agg
{
//===============================================span_interpolator_adaptor //===============================================span_interpolator_adaptor
template<class Interpolator, class Distortion> template<class Interpolator, class Distortion>
@ -31,22 +32,33 @@ class span_interpolator_adaptor : public Interpolator
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_interpolator_adaptor() {} span_interpolator_adaptor() {}
span_interpolator_adaptor(const trans_type& trans, const distortion_type& dist) span_interpolator_adaptor(const trans_type& trans,
: base_type(trans) const distortion_type& dist) :
, m_distortion(&dist) base_type(trans),
{} m_distortion(&dist)
{
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_interpolator_adaptor(const trans_type& trans, const distortion_type& dist, double x, double y, unsigned len) span_interpolator_adaptor(const trans_type& trans,
: base_type(trans, x, y, len) const distortion_type& dist,
, m_distortion(&dist) double x, double y, unsigned len) :
{} base_type(trans, x, y, len),
m_distortion(&dist)
{
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
const distortion_type& distortion() const { return *m_distortion; } const distortion_type& distortion() const
{
return *m_distortion;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void distortion(const distortion_type& dist) { m_distortion = dist; } void distortion(const distortion_type& dist)
{
m_distortion = dist;
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
void coordinates(int* x, int* y) const void coordinates(int* x, int* y) const
@ -59,6 +71,7 @@ class span_interpolator_adaptor : public Interpolator
//-------------------------------------------------------------------- //--------------------------------------------------------------------
const distortion_type* m_distortion; const distortion_type* m_distortion;
}; };
} // namespace agg }
#endif #endif

View file

@ -20,7 +20,8 @@
#include "agg_dda_line.h" #include "agg_dda_line.h"
#include "agg_trans_affine.h" #include "agg_trans_affine.h"
namespace agg { namespace agg
{
//================================================span_interpolator_linear //================================================span_interpolator_linear
template<class Transformer = trans_affine, unsigned SubpixelShift = 8> template<class Transformer = trans_affine, unsigned SubpixelShift = 8>
@ -29,15 +30,18 @@ class span_interpolator_linear
public: public:
typedef Transformer trans_type; typedef Transformer trans_type;
enum subpixel_scale_e { subpixel_shift = SubpixelShift, subpixel_scale = 1 << subpixel_shift }; enum subpixel_scale_e
{
subpixel_shift = SubpixelShift,
subpixel_scale = 1 << subpixel_shift
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_interpolator_linear() {} span_interpolator_linear() {}
span_interpolator_linear(const trans_type& trans) span_interpolator_linear(const trans_type& trans) : m_trans(&trans) {}
: m_trans(&trans) span_interpolator_linear(const trans_type& trans,
{} double x, double y, unsigned len) :
span_interpolator_linear(const trans_type& trans, double x, double y, unsigned len) m_trans(&trans)
: m_trans(&trans)
{ {
begin(x, y, len); begin(x, y, len);
} }
@ -96,6 +100,11 @@ class span_interpolator_linear
dda2_line_interpolator m_li_y; dda2_line_interpolator m_li_y;
}; };
//=====================================span_interpolator_linear_subdiv //=====================================span_interpolator_linear_subdiv
template<class Transformer = trans_affine, unsigned SubpixelShift = 8> template<class Transformer = trans_affine, unsigned SubpixelShift = 8>
class span_interpolator_linear_subdiv class span_interpolator_linear_subdiv
@ -103,31 +112,33 @@ class span_interpolator_linear_subdiv
public: public:
typedef Transformer trans_type; typedef Transformer trans_type;
enum subpixel_scale_e { subpixel_shift = SubpixelShift, subpixel_scale = 1 << subpixel_shift }; enum subpixel_scale_e
{
subpixel_shift = SubpixelShift,
subpixel_scale = 1 << subpixel_shift
};
//---------------------------------------------------------------- //----------------------------------------------------------------
span_interpolator_linear_subdiv() span_interpolator_linear_subdiv() :
: m_subdiv_shift(4) m_subdiv_shift(4),
, m_subdiv_size(1 << m_subdiv_shift) m_subdiv_size(1 << m_subdiv_shift),
, m_subdiv_mask(m_subdiv_size - 1) m_subdiv_mask(m_subdiv_size - 1) {}
{}
span_interpolator_linear_subdiv(const trans_type& trans, unsigned subdiv_shift = 4)
: m_subdiv_shift(subdiv_shift)
, m_subdiv_size(1 << m_subdiv_shift)
, m_subdiv_mask(m_subdiv_size - 1)
, m_trans(&trans)
{}
span_interpolator_linear_subdiv(const trans_type& trans, span_interpolator_linear_subdiv(const trans_type& trans,
double x, unsigned subdiv_shift = 4) :
double y, m_subdiv_shift(subdiv_shift),
unsigned len, m_subdiv_size(1 << m_subdiv_shift),
unsigned subdiv_shift = 4) m_subdiv_mask(m_subdiv_size - 1),
: m_subdiv_shift(subdiv_shift) m_trans(&trans) {}
, m_subdiv_size(1 << m_subdiv_shift)
, m_subdiv_mask(m_subdiv_size - 1) span_interpolator_linear_subdiv(const trans_type& trans,
, m_trans(&trans) double x, double y, unsigned len,
unsigned subdiv_shift = 4) :
m_subdiv_shift(subdiv_shift),
m_subdiv_size(1 << m_subdiv_shift),
m_subdiv_mask(m_subdiv_size - 1),
m_trans(&trans)
{ {
begin(x, y, len); begin(x, y, len);
} }
@ -155,8 +166,7 @@ class span_interpolator_linear_subdiv
m_src_y = y; m_src_y = y;
m_len = len; m_len = len;
if (len > m_subdiv_size) if(len > m_subdiv_size) len = m_subdiv_size;
len = m_subdiv_size;
tx = x; tx = x;
ty = y; ty = y;
m_trans->transform(&tx, &ty); m_trans->transform(&tx, &ty);
@ -179,8 +189,7 @@ class span_interpolator_linear_subdiv
if(m_pos >= m_subdiv_size) if(m_pos >= m_subdiv_size)
{ {
unsigned len = m_len; unsigned len = m_len;
if (len > m_subdiv_size) if(len > m_subdiv_size) len = m_subdiv_size;
len = m_subdiv_size;
double tx = double(m_src_x) / double(subpixel_scale) + len; double tx = double(m_src_x) / double(subpixel_scale) + len;
double ty = m_src_y; double ty = m_src_y;
m_trans->transform(&tx, &ty); m_trans->transform(&tx, &ty);
@ -213,6 +222,11 @@ class span_interpolator_linear_subdiv
unsigned m_len; unsigned m_len;
}; };
} // namespace agg
}
#endif #endif

View file

@ -18,7 +18,10 @@
#include "agg_trans_perspective.h" #include "agg_trans_perspective.h"
#include "agg_dda_line.h" #include "agg_dda_line.h"
namespace agg { namespace agg
{
//===========================================span_interpolator_persp_exact //===========================================span_interpolator_persp_exact
template<unsigned SubpixelShift = 8> template<unsigned SubpixelShift = 8>
@ -27,25 +30,36 @@ class span_interpolator_persp_exact
public: public:
typedef trans_perspective trans_type; typedef trans_perspective trans_type;
typedef trans_perspective::iterator_x iterator_type; typedef trans_perspective::iterator_x iterator_type;
enum subpixel_scale_e { subpixel_shift = SubpixelShift, subpixel_scale = 1 << subpixel_shift }; enum subpixel_scale_e
{
subpixel_shift = SubpixelShift,
subpixel_scale = 1 << subpixel_shift
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_interpolator_persp_exact() {} span_interpolator_persp_exact() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Arbitrary quadrangle transformations // Arbitrary quadrangle transformations
span_interpolator_persp_exact(const double* src, const double* dst) { quad_to_quad(src, dst); } span_interpolator_persp_exact(const double* src, const double* dst)
{
quad_to_quad(src, dst);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Direct transformations // Direct transformations
span_interpolator_persp_exact(double x1, double y1, double x2, double y2, const double* quad) span_interpolator_persp_exact(double x1, double y1,
double x2, double y2,
const double* quad)
{ {
rect_to_quad(x1, y1, x2, y2, quad); rect_to_quad(x1, y1, x2, y2, quad);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Reverse transformations // Reverse transformations
span_interpolator_persp_exact(const double* quad, double x1, double y1, double x2, double y2) span_interpolator_persp_exact(const double* quad,
double x1, double y1,
double x2, double y2)
{ {
quad_to_rect(quad, x1, y1, x2, y2); quad_to_rect(quad, x1, y1, x2, y2);
} }
@ -60,7 +74,8 @@ class span_interpolator_persp_exact
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Set the direct transformations, i.e., rectangle -> quadrangle // Set the direct transformations, i.e., rectangle -> quadrangle
void rect_to_quad(double x1, double y1, double x2, double y2, const double* quad) void rect_to_quad(double x1, double y1, double x2, double y2,
const double* quad)
{ {
double src[8]; double src[8];
src[0] = src[6] = x1; src[0] = src[6] = x1;
@ -70,9 +85,11 @@ class span_interpolator_persp_exact
quad_to_quad(src, quad); quad_to_quad(src, quad);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Set the reverse transformations, i.e., quadrangle -> rectangle // Set the reverse transformations, i.e., quadrangle -> rectangle
void quad_to_rect(const double* quad, double x1, double y1, double x2, double y2) void quad_to_rect(const double* quad,
double x1, double y1, double x2, double y2)
{ {
double dst[8]; double dst[8];
dst[0] = dst[6] = x1; dst[0] = dst[6] = x1;
@ -131,6 +148,7 @@ class span_interpolator_persp_exact
m_scale_y = dda2_line_interpolator(sy1, sy2, len); m_scale_y = dda2_line_interpolator(sy1, sy2, len);
} }
//---------------------------------------------------------------- //----------------------------------------------------------------
void resynchronize(double xe, double ye, unsigned len) void resynchronize(double xe, double ye, unsigned len)
{ {
@ -168,6 +186,8 @@ class span_interpolator_persp_exact
m_scale_y = dda2_line_interpolator(sy1, sy2, len); m_scale_y = dda2_line_interpolator(sy1, sy2, len);
} }
//---------------------------------------------------------------- //----------------------------------------------------------------
void operator++() void operator++()
{ {
@ -191,7 +211,10 @@ class span_interpolator_persp_exact
} }
//---------------------------------------------------------------- //----------------------------------------------------------------
void transform(double* x, double* y) const { m_trans_dir.transform(x, y); } void transform(double* x, double* y) const
{
m_trans_dir.transform(x, y);
}
private: private:
trans_type m_trans_dir; trans_type m_trans_dir;
@ -201,31 +224,52 @@ class span_interpolator_persp_exact
dda2_line_interpolator m_scale_y; dda2_line_interpolator m_scale_y;
}; };
//============================================span_interpolator_persp_lerp //============================================span_interpolator_persp_lerp
template<unsigned SubpixelShift = 8> template<unsigned SubpixelShift = 8>
class span_interpolator_persp_lerp class span_interpolator_persp_lerp
{ {
public: public:
typedef trans_perspective trans_type; typedef trans_perspective trans_type;
enum subpixel_scale_e { subpixel_shift = SubpixelShift, subpixel_scale = 1 << subpixel_shift }; enum subpixel_scale_e
{
subpixel_shift = SubpixelShift,
subpixel_scale = 1 << subpixel_shift
};
//-------------------------------------------------------------------- //--------------------------------------------------------------------
span_interpolator_persp_lerp() {} span_interpolator_persp_lerp() {}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Arbitrary quadrangle transformations // Arbitrary quadrangle transformations
span_interpolator_persp_lerp(const double* src, const double* dst) { quad_to_quad(src, dst); } span_interpolator_persp_lerp(const double* src, const double* dst)
{
quad_to_quad(src, dst);
}
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Direct transformations // Direct transformations
span_interpolator_persp_lerp(double x1, double y1, double x2, double y2, const double* quad) span_interpolator_persp_lerp(double x1, double y1,
double x2, double y2,
const double* quad)
{ {
rect_to_quad(x1, y1, x2, y2, quad); rect_to_quad(x1, y1, x2, y2, quad);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Reverse transformations // Reverse transformations
span_interpolator_persp_lerp(const double* quad, double x1, double y1, double x2, double y2) span_interpolator_persp_lerp(const double* quad,
double x1, double y1,
double x2, double y2)
{ {
quad_to_rect(quad, x1, y1, x2, y2); quad_to_rect(quad, x1, y1, x2, y2);
} }
@ -240,7 +284,8 @@ class span_interpolator_persp_lerp
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Set the direct transformations, i.e., rectangle -> quadrangle // Set the direct transformations, i.e., rectangle -> quadrangle
void rect_to_quad(double x1, double y1, double x2, double y2, const double* quad) void rect_to_quad(double x1, double y1, double x2, double y2,
const double* quad)
{ {
double src[8]; double src[8];
src[0] = src[6] = x1; src[0] = src[6] = x1;
@ -250,9 +295,11 @@ class span_interpolator_persp_lerp
quad_to_quad(src, quad); quad_to_quad(src, quad);
} }
//-------------------------------------------------------------------- //--------------------------------------------------------------------
// Set the reverse transformations, i.e., quadrangle -> rectangle // Set the reverse transformations, i.e., quadrangle -> rectangle
void quad_to_rect(const double* quad, double x1, double y1, double x2, double y2) void quad_to_rect(const double* quad,
double x1, double y1, double x2, double y2)
{ {
double dst[8]; double dst[8];
dst[0] = dst[6] = x1; dst[0] = dst[6] = x1;
@ -327,6 +374,7 @@ class span_interpolator_persp_lerp
m_scale_y = dda2_line_interpolator(sy1, sy2, len); m_scale_y = dda2_line_interpolator(sy1, sy2, len);
} }
//---------------------------------------------------------------- //----------------------------------------------------------------
void resynchronize(double xe, double ye, unsigned len) void resynchronize(double xe, double ye, unsigned len)
{ {
@ -370,6 +418,7 @@ class span_interpolator_persp_lerp
m_scale_y = dda2_line_interpolator(sy1, sy2, len); m_scale_y = dda2_line_interpolator(sy1, sy2, len);
} }
//---------------------------------------------------------------- //----------------------------------------------------------------
void operator++() void operator++()
{ {
@ -394,7 +443,10 @@ class span_interpolator_persp_lerp
} }
//---------------------------------------------------------------- //----------------------------------------------------------------
void transform(double* x, double* y) const { m_trans_dir.transform(x, y); } void transform(double* x, double* y) const
{
m_trans_dir.transform(x, y);
}
private: private:
trans_type m_trans_dir; trans_type m_trans_dir;
@ -405,6 +457,6 @@ class span_interpolator_persp_lerp
dda2_line_interpolator m_scale_y; dda2_line_interpolator m_scale_y;
}; };
} // namespace agg }
#endif #endif

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