204 lines
7.7 KiB
C++
204 lines
7.7 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) 2015 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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// mapnik
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#if defined(HAVE_TIFF)
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#include <mapnik/tiff_io.hpp>
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#endif
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#include <mapnik/image_util.hpp>
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#include <mapnik/image_util_tiff.hpp>
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#include <mapnik/image.hpp>
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#include <mapnik/image_view.hpp>
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#include <mapnik/image_options.hpp>
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#include <mapnik/util/conversions.hpp>
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// stl
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#include <string>
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namespace mapnik
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{
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#if defined(HAVE_TIFF)
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void handle_tiff_options(std::string const& type,
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tiff_config & config)
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{
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if (type == "tiff")
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{
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return;
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}
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if (type.length() > 4)
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{
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for (auto const& kv : parse_image_options(type))
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{
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auto const& key = kv.first;
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auto const& val = kv.second;
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if (key == "tiff") continue;
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else if (key == "compression")
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{
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if (val && !(*val).empty())
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{
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if (*val == "deflate")
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{
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config.compression = COMPRESSION_DEFLATE;
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}
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else if (*val == "adobedeflate")
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{
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config.compression = COMPRESSION_ADOBE_DEFLATE;
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}
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else if (*val == "lzw")
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{
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config.compression = COMPRESSION_LZW;
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}
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else if (*val == "none")
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{
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config.compression = COMPRESSION_NONE;
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}
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else
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{
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throw image_writer_exception("invalid tiff compression: '" + *val + "'");
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}
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}
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}
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else if (key == "method")
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{
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if (val && !(*val).empty())
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{
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if (*val == "scanline")
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{
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config.method = TIFF_WRITE_SCANLINE;
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}
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else if (*val == "strip" || *val == "stripped")
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{
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config.method = TIFF_WRITE_STRIPPED;
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}
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else if (*val == "tiled")
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{
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config.method = TIFF_WRITE_TILED;
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}
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else
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{
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throw image_writer_exception("invalid tiff method: '" + *val + "'");
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}
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}
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}
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else if (key == "zlevel")
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{
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if (val && !(*val).empty())
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{
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if (!mapnik::util::string2int(*val,config.zlevel) || config.zlevel < 0 || config.zlevel > 9)
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{
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throw image_writer_exception("invalid tiff zlevel: '" + *val + "'");
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}
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}
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}
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else if (key == "tile_height")
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{
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if (val && !(*val).empty())
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{
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if (!mapnik::util::string2int(*val,config.tile_height) || config.tile_height < 0 )
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{
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throw image_writer_exception("invalid tiff tile_height: '" + *val + "'");
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}
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}
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}
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else if (key == "tile_width")
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{
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if (val && !(*val).empty())
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{
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if (!mapnik::util::string2int(*val,config.tile_width) || config.tile_width < 0 )
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{
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throw image_writer_exception("invalid tiff tile_width: '" + *val + "'");
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}
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}
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}
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else if (key == "rows_per_strip")
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{
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if (val && !(*val).empty())
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{
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if (!mapnik::util::string2int(*val,config.rows_per_strip) || config.rows_per_strip < 0 )
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{
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throw image_writer_exception("invalid tiff rows_per_strip: '" + *val + "'");
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}
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}
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}
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else
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{
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throw image_writer_exception("unhandled tiff option: " + key);
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}
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}
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}
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}
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#endif
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tiff_saver::tiff_saver(std::ostream & stream, std::string const& t):
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stream_(stream), t_(t) {}
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template<>
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void tiff_saver::operator()<image_null> (image_null const& image) const
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{
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throw image_writer_exception("null images not supported");
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}
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template<>
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void tiff_saver::operator()<image_view_null> (image_view_null const& image) const
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{
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throw image_writer_exception("null image views not supported");
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}
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template <typename T>
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void tiff_saver::operator() (T const& image) const
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{
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#if defined(HAVE_TIFF)
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tiff_config opts;
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handle_tiff_options(t_, opts);
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save_as_tiff(stream_, image, opts);
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#else
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throw image_writer_exception("tiff output is not enabled in your build of Mapnik");
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#endif
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}
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template void tiff_saver::operator()<image_rgba8> (image_rgba8 const& image) const;
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template void tiff_saver::operator()<image_gray8> (image_gray8 const& image) const;
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template void tiff_saver::operator()<image_gray8s> (image_gray8s const& image) const;
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template void tiff_saver::operator()<image_gray16> (image_gray16 const& image) const;
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template void tiff_saver::operator()<image_gray16s> (image_gray16s const& image) const;
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template void tiff_saver::operator()<image_gray32> (image_gray32 const& image) const;
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template void tiff_saver::operator()<image_gray32s> (image_gray32s const& image) const;
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template void tiff_saver::operator()<image_gray32f> (image_gray32f const& image) const;
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template void tiff_saver::operator()<image_gray64> (image_gray64 const& image) const;
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template void tiff_saver::operator()<image_gray64s> (image_gray64s const& image) const;
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template void tiff_saver::operator()<image_gray64f> (image_gray64f const& image) const;
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template void tiff_saver::operator()<image_view_rgba8> (image_view_rgba8 const& image) const;
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template void tiff_saver::operator()<image_view_gray8> (image_view_gray8 const& image) const;
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template void tiff_saver::operator()<image_view_gray8s> (image_view_gray8s const& image) const;
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template void tiff_saver::operator()<image_view_gray16> (image_view_gray16 const& image) const;
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template void tiff_saver::operator()<image_view_gray16s> (image_view_gray16s const& image) const;
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template void tiff_saver::operator()<image_view_gray32> (image_view_gray32 const& image) const;
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template void tiff_saver::operator()<image_view_gray32s> (image_view_gray32s const& image) const;
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template void tiff_saver::operator()<image_view_gray32f> (image_view_gray32f const& image) const;
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template void tiff_saver::operator()<image_view_gray64> (image_view_gray64 const& image) const;
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template void tiff_saver::operator()<image_view_gray64s> (image_view_gray64s const& image) const;
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template void tiff_saver::operator()<image_view_gray64f> (image_view_gray64f const& image) const;
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} // end ns
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