a72ee4ba66
Conflicts: include/mapnik/image_compositing.hpp include/mapnik/util/conversions.hpp include/mapnik/value.hpp src/agg/agg_renderer.cpp src/agg/process_line_symbolizer.cpp src/agg/process_polygon_symbolizer.cpp src/png_reader.cpp src/svg_parser.cpp utils/svg2png/svg2png.cpp
118 lines
4.3 KiB
C++
118 lines
4.3 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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// boost
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#include <boost/foreach.hpp>
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// mapnik
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#include <mapnik/agg_renderer.hpp>
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#include <mapnik/agg_helpers.hpp>
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#include <mapnik/agg_rasterizer.hpp>
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#include <mapnik/polygon_symbolizer.hpp>
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#include <mapnik/vertex_converters.hpp>
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// agg
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#include "agg_basics.h"
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#include "agg_rendering_buffer.h"
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#include "agg_pixfmt_rgba.h"
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#include "agg_rasterizer_scanline_aa.h"
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#include "agg_scanline_u.h"
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namespace mapnik {
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template <typename T>
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void agg_renderer<T>::process(polygon_symbolizer const& sym,
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mapnik::feature_ptr const& feature,
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proj_transform const& prj_trans)
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{
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ras_ptr->reset();
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set_gamma_method(sym,ras_ptr);
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box2d<double> inflated_extent = query_extent_ * 1.1;
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typedef boost::mpl::vector<clip_poly_tag,transform_tag,affine_transform_tag,smooth_tag> conv_types;
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vertex_converter<box2d<double>,rasterizer,polygon_symbolizer, proj_transform, CoordTransform,conv_types>
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converter(inflated_extent,*ras_ptr,sym,t_,prj_trans);
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if (sym.clip()) converter.set<clip_poly_tag>(); //optional clip (default: true)
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converter.set<transform_tag>(); //always transform
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converter.set<affine_transform_tag>();
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if (sym.smooth() > 0.0) converter.set<smooth_tag>(); // optional smooth converter
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BOOST_FOREACH( geometry_type & geom, feature->paths())
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{
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if (geom.num_points() > 2)
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{
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converter.apply(geom);
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}
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}
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agg::rendering_buffer buf(current_buffer_->raw_data(),width_,height_, width_ * 4);
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color const& fill = sym.get_fill();
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unsigned r=fill.red();
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unsigned g=fill.green();
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unsigned b=fill.blue();
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unsigned a=fill.alpha();
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if (sym.comp_op())
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{
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typedef agg::rgba8 color_type;
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typedef agg::order_rgba order_type;
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typedef agg::pixel32_type pixel_type;
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typedef agg::comp_op_adaptor_rgba<color_type, order_type> blender_type; // comp blender
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typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
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typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
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typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_type;
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pixfmt_comp_type pixf(buf);
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pixf.comp_op(static_cast<agg::comp_op_e>(*sym.comp_op()));
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renderer_base renb(pixf);
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renderer_type ren(renb);
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ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
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agg::scanline_u8 sl;
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agg::render_scanlines(*ras_ptr, sl, ren);
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}
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else if (style_level_compositing_)
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{
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// use plain pixel format
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agg::pixfmt_rgba32_plain pixf(buf);
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renderer_scanline_solid<agg::pixfmt_rgba32_plain> ren;
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ren.attach(pixf);
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ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
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ren.render(*ras_ptr);
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}
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else
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{
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agg::pixfmt_rgba32 pixf(buf);
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renderer_scanline_solid<agg::pixfmt_rgba32> ren;
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ren.attach(pixf);
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ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
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ren.render(*ras_ptr);
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}
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}
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template void agg_renderer<image_32>::process(polygon_symbolizer const&,
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mapnik::feature_ptr const&,
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proj_transform const&);
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}
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