mirror of
https://github.com/mapnik/mapnik.git
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ab101401cd
+ removed multiple geometry typedefs + use geometry_type + revert to storing vertices in vector_vertex (previous implementation using std::vector was fragmenting heap causing performance issues with large geometries) + FIXME: hit_test is broken!
90 lines
3.3 KiB
C++
90 lines
3.3 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) 2010 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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//$Id$
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// mapnik
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#include <mapnik/agg_renderer.hpp>
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#include <mapnik/agg_rasterizer.hpp>
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#include <mapnik/agg_pattern_source.hpp>
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#include <mapnik/image_cache.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_outline.h"
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#include "agg_rasterizer_outline_aa.h"
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#include "agg_scanline_u.h"
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//
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#include "agg_renderer_scanline.h"
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#include "agg_pattern_filters_rgba.h"
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#include "agg_span_allocator.h"
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#include "agg_span_pattern_rgba.h"
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#include "agg_renderer_outline_image.h"
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namespace mapnik {
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template <typename T>
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void agg_renderer<T>::process(line_pattern_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans)
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{
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typedef coord_transform2<CoordTransform,geometry_type> path_type;
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typedef agg::line_image_pattern<agg::pattern_filter_bilinear_rgba8> pattern_type;
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typedef agg::renderer_base<agg::pixfmt_rgba32_plain> renderer_base;
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typedef agg::renderer_outline_image<renderer_base, pattern_type> renderer_type;
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typedef agg::rasterizer_outline_aa<renderer_type> rasterizer_type;
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agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4);
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agg::pixfmt_rgba32_plain pixf(buf);
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std::string filename = path_processor_type::evaluate( *sym.get_filename(), feature);
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boost::optional<image_ptr> pat = image_cache::instance()->find(filename,true);
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if (!pat) return;
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renderer_base ren_base(pixf);
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agg::pattern_filter_bilinear_rgba8 filter;
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pattern_source source(*(*pat));
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pattern_type pattern (filter,source);
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renderer_type ren(ren_base, pattern);
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ren.clip_box(0,0,width_,height_);
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rasterizer_type ras(ren);
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metawriter_with_properties writer = sym.get_metawriter();
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for (unsigned i=0;i<feature.num_geometries();++i)
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{
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geometry_type const& geom = feature.get_geometry(i);
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if (geom.num_points() > 1)
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{
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path_type path(t_,geom,prj_trans);
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ras.add_path(path);
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if (writer.first) writer.first->add_line(path, feature, t_, writer.second);
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}
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}
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}
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template void agg_renderer<image_32>::process(line_pattern_symbolizer const&,
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Feature const&,
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proj_transform const&);
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}
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