105 lines
2.7 KiB
C++
105 lines
2.7 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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#ifndef MAPNIK_IMAGE_COMPOSITING_HPP
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#define MAPNIK_IMAGE_COMPOSITING_HPP
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// stl
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#include <string>
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#include <boost/optional.hpp>
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#include <mapnik/config.hpp>
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#ifdef _MSC_VER
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#include <mapnik/image_data.hpp>
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#endif
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namespace mapnik
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{
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// Compositing modes
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// http://www.w3.org/TR/2009/WD-SVGCompositing-20090430/
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enum composite_mode_e
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{
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clear = 0,
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src,
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dst,
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src_over,
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dst_over,
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src_in,
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dst_in,
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src_out,
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dst_out,
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src_atop,
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dst_atop,
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_xor,
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plus,
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minus,
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multiply,
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screen,
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overlay,
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darken,
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lighten,
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color_dodge,
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color_burn,
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hard_light,
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soft_light,
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difference,
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exclusion,
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contrast,
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invert,
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invert_rgb,
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grain_merge,
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grain_extract,
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hue,
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saturation,
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_color,
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_value,
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linear_dodge,
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linear_burn,
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divide
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};
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MAPNIK_DECL boost::optional<composite_mode_e> comp_op_from_string(std::string const& name);
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MAPNIK_DECL boost::optional<std::string> comp_op_to_string(composite_mode_e comp_op);
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template <typename T1, typename T2>
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MAPNIK_DECL void composite(T1 & dst, T2 & src,
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composite_mode_e mode,
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float opacity=1,
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int dx=0,
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int dy=0,
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bool premultiply_src=false);
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#ifdef _MSC_VER
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template MAPNIK_DECL void composite<mapnik::image_data_32,mapnik::image_data_32>(mapnik::image_data_32 & dst,
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mapnik::image_data_32 & src,
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composite_mode_e mode,
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float opacity,
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int dx,
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int dy,
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bool premultiply_src);
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#endif
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}
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#endif // MAPNIK_IMAGE_COMPOSITING_HPP
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