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reduce overhead of flexible agg gamma setting per symbolizer - closes #1174

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This commit is contained in:
Dane Springmeyer 2013-03-14 17:05:06 -07:00
parent 2b3170322d
commit 44c02a10c5
6 changed files with 48 additions and 11 deletions
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20
src/agg/agg_renderer.cpp
View file

@ -79,7 +79,10 @@ agg_renderer<T>::agg_renderer(Map const& m, T & pixmap, double scale_factor, uns
font_engine_(),
font_manager_(font_engine_),
detector_(boost::make_shared<label_collision_detector4>(box2d<double>(-m.buffer_size(), -m.buffer_size(), m.width() + m.buffer_size() ,m.height() + m.buffer_size()))),
ras_ptr(new rasterizer)
ras_ptr(new rasterizer),
query_extent_(),
gamma_method_(GAMMA_POWER),
gamma_(1.0)
{
setup(m);
}
@ -98,7 +101,10 @@ agg_renderer<T>::agg_renderer(Map const& m, request const& req, T & pixmap, doub
font_engine_(),
font_manager_(font_engine_),
detector_(boost::make_shared<label_collision_detector4>(box2d<double>(-req.buffer_size(), -req.buffer_size(), req.width() + req.buffer_size() ,req.height() + req.buffer_size()))),
ras_ptr(new rasterizer)
ras_ptr(new rasterizer),
query_extent_(),
gamma_method_(GAMMA_POWER),
gamma_(1.0)
{
setup(m);
}
@ -118,7 +124,10 @@ agg_renderer<T>::agg_renderer(Map const& m, T & pixmap, boost::shared_ptr<label_
font_engine_(),
font_manager_(font_engine_),
detector_(detector),
ras_ptr(new rasterizer)
ras_ptr(new rasterizer),
query_extent_(),
gamma_method_(GAMMA_POWER),
gamma_(1.0)
{
setup(m);
}
@ -297,7 +306,12 @@ void agg_renderer<T>::render_marker(pixel_position const& pos,
typedef agg::pod_bvector<mapnik::svg::path_attributes> svg_attribute_type;
ras_ptr->reset();
if (gamma_method_ != GAMMA_POWER || gamma_ != 1.0)
{
ras_ptr->gamma(agg::gamma_power());
gamma_method_ = GAMMA_POWER;
gamma_ = 1.0;
}
agg::scanline_u8 sl;
agg::rendering_buffer buf(current_buffer_->raw_data(), width_, height_, width_ * 4);
pixfmt_comp_type pixf(buf);

5
src/agg/process_building_symbolizer.cpp
View file

@ -70,7 +70,12 @@ void agg_renderer<T>::process(building_symbolizer const& sym,
agg::scanline_u8 sl;
ras_ptr->reset();
if (gamma_method_ != GAMMA_POWER || gamma_ != 1.0)
{
ras_ptr->gamma(agg::gamma_power());
gamma_method_ = GAMMA_POWER;
gamma_ = 1.0;
}
double height = 0.0;
expression_ptr height_expr = sym.height();

5
src/agg/process_line_symbolizer.cpp
View file

@ -66,7 +66,12 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
unsigned a=col.alpha();
ras_ptr->reset();
if (stroke_.get_gamma() != gamma_ || stroke_.get_gamma_method() != gamma_method_)
{
set_gamma_method(stroke_, ras_ptr);
gamma_method_ = stroke_.get_gamma_method();
gamma_ = stroke_.get_gamma();
}
agg::rendering_buffer buf(current_buffer_->raw_data(),width_,height_, width_ * 4);

5
src/agg/process_markers_symbolizer.cpp
View file

@ -83,7 +83,12 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
if (mark && *mark)
{
ras_ptr->reset();
if (gamma_method_ != GAMMA_POWER || gamma_ != 1.0)
{
ras_ptr->gamma(agg::gamma_power());
gamma_method_ = GAMMA_POWER;
gamma_ = 1.0;
}
agg::trans_affine geom_tr;
evaluate_transform(geom_tr, feature, sym.get_transform());
agg::trans_affine tr = agg::trans_affine_scaling(scale_factor_);

6
src/agg/process_polygon_pattern_symbolizer.cpp
View file

@ -61,8 +61,12 @@ void agg_renderer<T>::process(polygon_pattern_symbolizer const& sym,
agg::rendering_buffer buf(current_buffer_->raw_data(), width_, height_, width_ * 4);
ras_ptr->reset();
if (sym.get_gamma() != gamma_ || sym.get_gamma_method() != gamma_method_)
{
set_gamma_method(sym, ras_ptr);
gamma_method_ = sym.get_gamma_method();
gamma_ = sym.get_gamma();
}
std::string filename = path_processor_type::evaluate( *sym.get_filename(), feature);
boost::optional<mapnik::marker_ptr> marker;
if ( !filename.empty() )

6
src/agg/process_polygon_symbolizer.cpp
View file

@ -48,8 +48,12 @@ void agg_renderer<T>::process(polygon_symbolizer const& sym,
{
ras_ptr->reset();
if (sym.get_gamma() != gamma_ || sym.get_gamma_method() != gamma_method_)
{
set_gamma_method(sym, ras_ptr);
gamma_method_ = sym.get_gamma_method();
gamma_ = sym.get_gamma();
}
agg::trans_affine tr;
evaluate_transform(tr, feature, sym.get_transform());