/usr/include/mapnik/agg_helpers.hpp is in libmapnik-dev 2.2.0+ds1-6build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2012 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_AGG_HELPERS_HPP
#define MAPNIK_AGG_HELPERS_HPP
// mapnik
#include <mapnik/gamma_method.hpp>
#include <mapnik/stroke.hpp>
// agg
#include "agg_basics.h"
#include "agg_gamma_functions.h"
#include "agg_math_stroke.h"
#include "agg_pixfmt_rgba.h"
#include "agg_scanline_u.h"
#include "agg_scanline_p.h"
#include "agg_renderer_outline_aa.h"
#include "agg_renderer_scanline.h"
#include "agg_rasterizer_outline_aa.h"
namespace mapnik {
template <typename T0, typename T1>
void set_gamma_method(T0 const& obj, T1 & ras_ptr)
{
switch (obj.get_gamma_method())
{
case GAMMA_POWER:
ras_ptr->gamma(agg::gamma_power(obj.get_gamma()));
break;
case GAMMA_LINEAR:
ras_ptr->gamma(agg::gamma_linear(0.0, obj.get_gamma()));
break;
case GAMMA_NONE:
ras_ptr->gamma(agg::gamma_none());
break;
case GAMMA_THRESHOLD:
ras_ptr->gamma(agg::gamma_threshold(obj.get_gamma()));
break;
case GAMMA_MULTIPLY:
ras_ptr->gamma(agg::gamma_multiply(obj.get_gamma()));
break;
default:
ras_ptr->gamma(agg::gamma_power(obj.get_gamma()));
}
}
template <typename Stroke,typename PathType>
void set_join_caps(Stroke const& stroke_, PathType & stroke)
{
line_join_e join=stroke_.get_line_join();
switch (join)
{
case MITER_JOIN:
stroke.generator().line_join(agg::miter_join);
break;
case MITER_REVERT_JOIN:
stroke.generator().line_join(agg::miter_join);
break;
case ROUND_JOIN:
stroke.generator().line_join(agg::round_join);
break;
default:
stroke.generator().line_join(agg::bevel_join);
}
line_cap_e cap=stroke_.get_line_cap();
switch (cap)
{
case BUTT_CAP:
stroke.generator().line_cap(agg::butt_cap);
break;
case SQUARE_CAP:
stroke.generator().line_cap(agg::square_cap);
break;
default:
stroke.generator().line_cap(agg::round_cap);
}
}
template <typename Stroke,typename Rasterizer>
void set_join_caps_aa(Stroke const& stroke_, Rasterizer & ras)
{
line_join_e join=stroke_.get_line_join();
switch (join)
{
case MITER_JOIN:
ras.line_join(agg::outline_miter_accurate_join);
break;
case MITER_REVERT_JOIN:
ras.line_join(agg::outline_no_join);
break;
case ROUND_JOIN:
ras.line_join(agg::outline_round_join);
break;
default:
ras.line_join(agg::outline_no_join);
}
line_cap_e cap=stroke_.get_line_cap();
switch (cap)
{
case BUTT_CAP:
ras.round_cap(false);
break;
case SQUARE_CAP:
ras.round_cap(false);
break;
default:
ras.round_cap(true);
}
}
}
#endif //MAPNIK_AGG_HELPERS_HPP
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