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further refactoring of marker_helpers to help set up for using from grid renderer

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This commit is contained in:
Dane Springmeyer 2012-08-06 11:39:09 -07:00
parent 53c873ca49
commit cf192ee771
2 changed files with 65 additions and 72 deletions
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121
include/mapnik/marker_helpers.hpp
View file

@ -58,7 +58,7 @@ struct vector_markers_rasterizer_dispatch
typedef typename SvgRenderer::renderer_base renderer_base;
typedef typename renderer_base::pixfmt_type pixfmt_type;
vector_markers_rasterizer_dispatch(BufferType & image_buffer,
vector_markers_rasterizer_dispatch(BufferType & render_buffer,
SvgRenderer & svg_renderer,
Rasterizer & ras,
box2d<double> const& bbox,
@ -66,7 +66,7 @@ struct vector_markers_rasterizer_dispatch
markers_symbolizer const& sym,
Detector & detector,
double scale_factor)
: buf_(image_buffer.raw_data(), image_buffer.width(), image_buffer.height(), image_buffer.width() * 4),
: buf_(render_buffer),
pixf_(buf_),
renb_(pixf_),
svg_renderer_(svg_renderer),
@ -105,9 +105,10 @@ struct vector_markers_rasterizer_dispatch
detector_.has_placement(transformed_bbox))
{
svg_renderer_.render(ras_, sl_, renb_, matrix, sym_.get_opacity(), bbox_);
if (!sym_.get_ignore_placement())
{
detector_.insert(transformed_bbox);
}
}
}
else
@ -128,7 +129,7 @@ struct vector_markers_rasterizer_dispatch
}
private:
agg::scanline_u8 sl_;
agg::rendering_buffer buf_;
BufferType & buf_;
pixfmt_type pixf_;
renderer_base renb_;
SvgRenderer & svg_renderer_;
@ -140,59 +141,6 @@ private:
double scale_factor_;
};
template <typename Rasterizer, typename RendererBuffer>
void render_raster_marker(Rasterizer & ras, RendererBuffer & renb,
agg::scanline_u8 & sl, image_data_32 const& src,
agg::trans_affine const& marker_tr, double opacity)
{
double width = src.width();
double height = src.height();
double p[8];
p[0] = 0; p[1] = 0;
p[2] = width; p[3] = 0;
p[4] = width; p[5] = height;
p[6] = 0; p[7] = height;
marker_tr.transform(&p[0], &p[1]);
marker_tr.transform(&p[2], &p[3]);
marker_tr.transform(&p[4], &p[5]);
marker_tr.transform(&p[6], &p[7]);
ras.move_to_d(p[0],p[1]);
ras.line_to_d(p[2],p[3]);
ras.line_to_d(p[4],p[5]);
ras.line_to_d(p[6],p[7]);
typedef agg::rgba8 color_type;
agg::span_allocator<color_type> sa;
agg::image_filter_bilinear filter_kernel;
agg::image_filter_lut filter(filter_kernel, false);
agg::rendering_buffer marker_buf((unsigned char *)src.getBytes(),
src.width(),
src.height(),
src.width()*4);
agg::pixfmt_rgba32_pre pixf(marker_buf);
typedef agg::image_accessor_clone<agg::pixfmt_rgba32_pre> img_accessor_type;
typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
typedef agg::span_image_filter_rgba_2x2<img_accessor_type,
interpolator_type> span_gen_type;
typedef agg::order_rgba order_type;
typedef agg::pixel32_type pixel_type;
typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
typedef agg::renderer_scanline_aa_alpha<renderer_base,
agg::span_allocator<agg::rgba8>,
span_gen_type> renderer_type;
img_accessor_type ia(pixf);
interpolator_type interpolator(agg::trans_affine(p, 0, 0, width, height) );
span_gen_type sg(ia, interpolator, filter);
renderer_type rp(renb,sa, sg, unsigned(opacity*255));
agg::render_scanlines(ras, sl, rp);
}
template <typename BufferType, typename Rasterizer, typename Detector>
struct raster_markers_rasterizer_dispatch
{
@ -200,17 +148,17 @@ struct raster_markers_rasterizer_dispatch
typedef agg::order_rgba order_type;
typedef agg::pixel32_type pixel_type;
typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
typedef agg::pixfmt_custom_blend_rgba<blender_type, BufferType> pixfmt_comp_type;
typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
raster_markers_rasterizer_dispatch(BufferType & image_buffer,
raster_markers_rasterizer_dispatch(BufferType & render_buffer,
Rasterizer & ras,
image_data_32 const& src,
agg::trans_affine const& marker_trans,
markers_symbolizer const& sym,
Detector & detector,
double scale_factor)
: buf_(image_buffer.raw_data(), image_buffer.width(), image_buffer.height(), image_buffer.width() * 4),
: buf_(render_buffer),
pixf_(buf_),
renb_(pixf_),
ras_(ras),
@ -248,10 +196,11 @@ struct raster_markers_rasterizer_dispatch
if (sym_.get_allow_overlap() ||
detector_.has_placement(transformed_bbox))
{
render_raster_marker(ras_, renb_, sl_, src_,
matrix, sym_.get_opacity());
render_raster_marker(matrix, sym_.get_opacity());
if (!sym_.get_ignore_placement())
{
detector_.insert(transformed_bbox);
}
}
}
else
@ -265,15 +214,55 @@ struct raster_markers_rasterizer_dispatch
{
agg::trans_affine matrix = marker_trans_;
matrix.rotate(angle);
matrix.translate(x,y);
render_raster_marker(ras_, renb_, sl_, src_,
matrix, sym_.get_opacity());
matrix.translate(x, y);
render_raster_marker(matrix, sym_.get_opacity());
}
}
}
void render_raster_marker(agg::trans_affine const& marker_tr,
double opacity)
{
double width = src_.width();
double height = src_.height();
double p[8];
p[0] = 0; p[1] = 0;
p[2] = width; p[3] = 0;
p[4] = width; p[5] = height;
p[6] = 0; p[7] = height;
marker_tr.transform(&p[0], &p[1]);
marker_tr.transform(&p[2], &p[3]);
marker_tr.transform(&p[4], &p[5]);
marker_tr.transform(&p[6], &p[7]);
ras_.move_to_d(p[0],p[1]);
ras_.line_to_d(p[2],p[3]);
ras_.line_to_d(p[4],p[5]);
ras_.line_to_d(p[6],p[7]);
agg::span_allocator<color_type> sa;
agg::image_filter_bilinear filter_kernel;
agg::image_filter_lut filter(filter_kernel, false);
agg::rendering_buffer marker_buf((unsigned char *)src_.getBytes(),
src_.width(),
src_.height(),
src_.width()*4);
agg::pixfmt_rgba32_pre pixf(marker_buf);
typedef agg::image_accessor_clone<agg::pixfmt_rgba32_pre> img_accessor_type;
typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
typedef agg::span_image_filter_rgba_2x2<img_accessor_type,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa_alpha<renderer_base,
agg::span_allocator<agg::rgba8>,
span_gen_type> renderer_type;
img_accessor_type ia(pixf);
interpolator_type interpolator(agg::trans_affine(p, 0, 0, width, height) );
span_gen_type sg(ia, interpolator, filter);
renderer_type rp(renb_,sa, sg, unsigned(opacity*255));
agg::render_scanlines(ras_, sl_, rp);
}
private:
agg::scanline_u8 sl_;
agg::rendering_buffer buf_;
BufferType & buf_;
pixfmt_comp_type pixf_;
renderer_base renb_;
Rasterizer & ras_;

16
src/agg/process_markers_symbolizer.cpp
View file

@ -65,7 +65,8 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
typedef agg::order_rgba order_type;
typedef agg::pixel32_type pixel_type;
typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
typedef agg::rendering_buffer buf_type;
typedef agg::pixfmt_custom_blend_rgba<blender_type, buf_type> pixfmt_comp_type;
typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
typedef label_collision_detector4 detector_type;
typedef boost::mpl::vector<clip_line_tag,clip_poly_tag,transform_tag,smooth_tag> conv_types;
@ -93,7 +94,7 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
svg_attribute_type,
renderer_type,
pixfmt_comp_type > svg_renderer_type;
typedef vector_markers_rasterizer_dispatch<buffer_type,
typedef vector_markers_rasterizer_dispatch<buf_type,
svg_renderer_type,
rasterizer,
detector_type > dispatch_type;
@ -118,7 +119,8 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
coord2d center = bbox.center();
agg::trans_affine_translation recenter(-center.x, -center.y);
agg::trans_affine marker_trans = recenter * tr;
dispatch_type rasterizer_dispatch(*current_buffer_,svg_renderer,*ras_ptr,
buf_type render_buffer(current_buffer_->raw_data(), width_, height_, width_ * 4);
dispatch_type rasterizer_dispatch(render_buffer,svg_renderer,*ras_ptr,
bbox, marker_trans, sym, *detector_, scale_factor_);
vertex_converter<box2d<double>, dispatch_type, markers_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types>
@ -151,7 +153,8 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
svg_attribute_type attributes;
bool result = push_explicit_style( (*stock_vector_marker)->attributes(), attributes, sym);
svg_renderer_type svg_renderer(svg_path, result ? attributes : (*stock_vector_marker)->attributes());
dispatch_type rasterizer_dispatch(*current_buffer_,svg_renderer,*ras_ptr,
buf_type render_buffer(current_buffer_->raw_data(), width_, height_, width_ * 4);
dispatch_type rasterizer_dispatch(render_buffer,svg_renderer,*ras_ptr,
bbox, marker_trans, sym, *detector_, scale_factor_);
vertex_converter<box2d<double>, dispatch_type, markers_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types>
@ -181,8 +184,9 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
agg::trans_affine_translation recenter(-center.x, -center.y);
agg::trans_affine marker_trans = recenter * tr;
boost::optional<mapnik::image_ptr> marker = (*mark)->get_bitmap_data();
typedef raster_markers_rasterizer_dispatch<buffer_type,rasterizer, detector_type> dispatch_type;
dispatch_type rasterizer_dispatch(*current_buffer_,*ras_ptr, **marker,
typedef raster_markers_rasterizer_dispatch<buf_type,rasterizer, detector_type> dispatch_type;
buf_type render_buffer(current_buffer_->raw_data(), width_, height_, width_ * 4);
dispatch_type rasterizer_dispatch(render_buffer,*ras_ptr, **marker,
marker_trans, sym, *detector_, scale_factor_);
vertex_converter<box2d<double>, dispatch_type, markers_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types>