58927b404c
+ replace BOOST_FOREACH with for( : ) + remove boost/foreach.hpp + fix benchmarks (17,18)
583 lines
20 KiB
C++
583 lines
20 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2011 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
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#if defined(HAVE_PNG)
|
|
extern "C"
|
|
{
|
|
#include <png.h>
|
|
}
|
|
#endif
|
|
|
|
// mapnik
|
|
#if defined(HAVE_PNG)
|
|
#include <mapnik/png_io.hpp>
|
|
#endif
|
|
|
|
#if defined(HAVE_TIFF)
|
|
#include <mapnik/tiff_io.hpp>
|
|
#endif
|
|
|
|
#if defined(HAVE_JPEG)
|
|
#include <mapnik/jpeg_io.hpp>
|
|
#endif
|
|
|
|
#if defined(HAVE_WEBP)
|
|
#include <mapnik/webp_io.hpp>
|
|
#endif
|
|
|
|
#include <mapnik/image_util.hpp>
|
|
#include <mapnik/image_data.hpp>
|
|
#include <mapnik/graphics.hpp>
|
|
#include <mapnik/memory.hpp>
|
|
#include <mapnik/image_view.hpp>
|
|
#include <mapnik/palette.hpp>
|
|
#include <mapnik/map.hpp>
|
|
#include <mapnik/util/conversions.hpp>
|
|
|
|
#ifdef HAVE_CAIRO
|
|
#include <mapnik/cairo_renderer.hpp>
|
|
#include <cairo.h>
|
|
#ifdef CAIRO_HAS_PDF_SURFACE
|
|
#include <cairo-pdf.h>
|
|
#endif // CAIRO_HAS_PDF_SURFACE
|
|
#ifdef CAIRO_HAS_PS_SURFACE
|
|
#include <cairo-ps.h>
|
|
#endif // CAIRO_HAS_PS_SURFACE
|
|
#ifdef CAIRO_HAS_SVG_SURFACE
|
|
#include <cairo-svg.h>
|
|
#endif // CAIRO_HAS_SVG_SURFACE
|
|
#endif
|
|
|
|
// boost
|
|
|
|
#include <boost/tokenizer.hpp>
|
|
|
|
// stl
|
|
#include <string>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
#include <algorithm>
|
|
|
|
namespace mapnik
|
|
{
|
|
|
|
|
|
template <typename T>
|
|
std::string save_to_string(T const& image,
|
|
std::string const& type,
|
|
rgba_palette const& palette)
|
|
{
|
|
std::ostringstream ss(std::ios::out|std::ios::binary);
|
|
save_to_stream(image, ss, type, palette);
|
|
return ss.str();
|
|
}
|
|
|
|
template <typename T>
|
|
std::string save_to_string(T const& image,
|
|
std::string const& type)
|
|
{
|
|
std::ostringstream ss(std::ios::out|std::ios::binary);
|
|
save_to_stream(image, ss, type);
|
|
return ss.str();
|
|
}
|
|
|
|
template <typename T>
|
|
void save_to_file(T const& image,
|
|
std::string const& filename,
|
|
std::string const& type,
|
|
rgba_palette const& palette)
|
|
{
|
|
std::ofstream file (filename.c_str(), std::ios::out| std::ios::trunc|std::ios::binary);
|
|
if (file)
|
|
{
|
|
save_to_stream(image, file, type, palette);
|
|
}
|
|
else throw ImageWriterException("Could not write file to " + filename );
|
|
}
|
|
|
|
template <typename T>
|
|
void save_to_file(T const& image,
|
|
std::string const& filename,
|
|
std::string const& type)
|
|
{
|
|
std::ofstream file (filename.c_str(), std::ios::out| std::ios::trunc|std::ios::binary);
|
|
if (file)
|
|
{
|
|
save_to_stream(image, file, type);
|
|
}
|
|
else throw ImageWriterException("Could not write file to " + filename );
|
|
}
|
|
|
|
#if defined(HAVE_PNG)
|
|
void handle_png_options(std::string const& type,
|
|
int * colors,
|
|
int * compression,
|
|
int * strategy,
|
|
int * trans_mode,
|
|
double * gamma,
|
|
bool * use_octree,
|
|
bool * use_miniz)
|
|
{
|
|
if (type == "png" || type == "png24" || type == "png32")
|
|
{
|
|
// Shortcut when the user didn't specify any flags after the colon.
|
|
// Paletted images specify "png8 or png256".
|
|
*colors = -1;
|
|
return;
|
|
}
|
|
// TODO - convert to spirit parser
|
|
if (type.length() > 6){
|
|
boost::char_separator<char> sep(":");
|
|
boost::tokenizer< boost::char_separator<char> > tokens(type, sep);
|
|
for (std::string const& t : tokens)
|
|
{
|
|
if (t == "png" || t == "png24" || t == "png32")
|
|
{
|
|
*colors = -1;
|
|
}
|
|
else if (t == "m=h")
|
|
{
|
|
*use_octree = false;
|
|
}
|
|
else if (t == "m=o")
|
|
{
|
|
*use_octree = true;
|
|
}
|
|
else if (t == "e=miniz")
|
|
{
|
|
*use_miniz = true;
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "c="))
|
|
{
|
|
if (*colors < 0)
|
|
throw ImageWriterException("invalid color parameter: unavailable for true color images");
|
|
|
|
if (!mapnik::util::string2int(t.substr(2),*colors) || *colors < 1 || *colors > 256)
|
|
throw ImageWriterException("invalid color parameter: " + t.substr(2));
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "t="))
|
|
{
|
|
if (!mapnik::util::string2int(t.substr(2),*trans_mode) || *trans_mode < 0 || *trans_mode > 2)
|
|
throw ImageWriterException("invalid trans_mode parameter: " + t.substr(2));
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "g="))
|
|
{
|
|
if (*colors < 0)
|
|
throw ImageWriterException("invalid gamma parameter: unavailable for true color images");
|
|
if (!mapnik::util::string2double(t.substr(2),*gamma) || *gamma < 0)
|
|
{
|
|
throw ImageWriterException("invalid gamma parameter: " + t.substr(2));
|
|
}
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "z="))
|
|
{
|
|
/*
|
|
#define Z_NO_COMPRESSION 0
|
|
#define Z_BEST_SPEED 1
|
|
#define Z_BEST_COMPRESSION 9
|
|
#define Z_DEFAULT_COMPRESSION (-1)
|
|
*/
|
|
if (!mapnik::util::string2int(t.substr(2),*compression)
|
|
|| *compression < Z_DEFAULT_COMPRESSION
|
|
|| *compression > 10) // use 10 here rather than Z_BEST_COMPRESSION (9) to allow for MZ_UBER_COMPRESSION
|
|
{
|
|
throw ImageWriterException("invalid compression parameter: " + t.substr(2) + " (only -1 through 10 are valid)");
|
|
}
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "s="))
|
|
{
|
|
std::string const& s = t.substr(2);
|
|
if (s == "default")
|
|
{
|
|
*strategy = Z_DEFAULT_STRATEGY;
|
|
}
|
|
else if (s == "filtered")
|
|
{
|
|
*strategy = Z_FILTERED;
|
|
}
|
|
else if (s == "huff")
|
|
{
|
|
*strategy = Z_HUFFMAN_ONLY;
|
|
}
|
|
else if (s == "rle")
|
|
{
|
|
*strategy = Z_RLE;
|
|
}
|
|
else if (s == "fixed")
|
|
{
|
|
*strategy = Z_FIXED;
|
|
}
|
|
else
|
|
{
|
|
throw ImageWriterException("invalid compression strategy parameter: " + s);
|
|
}
|
|
}
|
|
}
|
|
if ((*use_miniz == false) && *compression > Z_BEST_COMPRESSION)
|
|
{
|
|
throw ImageWriterException("invalid compression value: (only -1 through 9 are valid)");
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
template <typename T>
|
|
void save_to_stream(T const& image,
|
|
std::ostream & stream,
|
|
std::string const& type,
|
|
rgba_palette const& palette)
|
|
{
|
|
if (stream && image.width() > 0 && image.height() > 0)
|
|
{
|
|
std::string t = type;
|
|
std::transform(t.begin(), t.end(), t.begin(), ::tolower);
|
|
if (t == "png" || boost::algorithm::starts_with(t, "png"))
|
|
{
|
|
#if defined(HAVE_PNG)
|
|
int colors = 256;
|
|
int compression = Z_DEFAULT_COMPRESSION;
|
|
int strategy = Z_DEFAULT_STRATEGY;
|
|
int trans_mode = -1;
|
|
double gamma = -1;
|
|
bool use_octree = true;
|
|
bool use_miniz = false;
|
|
|
|
handle_png_options(t,
|
|
&colors,
|
|
&compression,
|
|
&strategy,
|
|
&trans_mode,
|
|
&gamma,
|
|
&use_octree,
|
|
&use_miniz);
|
|
|
|
if (palette.valid())
|
|
{
|
|
save_as_png8_pal(stream, image, palette, compression, strategy, use_miniz);
|
|
}
|
|
else if (colors < 0)
|
|
{
|
|
save_as_png(stream, image, compression, strategy, trans_mode, use_miniz);
|
|
}
|
|
else if (use_octree)
|
|
{
|
|
save_as_png8_oct(stream, image, colors, compression, strategy, trans_mode, use_miniz);
|
|
}
|
|
else
|
|
{
|
|
save_as_png8_hex(stream, image, colors, compression, strategy, trans_mode, gamma, use_miniz);
|
|
}
|
|
#else
|
|
throw ImageWriterException("png output is not enabled in your build of Mapnik");
|
|
#endif
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "tif"))
|
|
{
|
|
throw ImageWriterException("palettes are not currently supported when writing to tiff format (yet)");
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "jpeg"))
|
|
{
|
|
throw ImageWriterException("palettes are not currently supported when writing to jpeg format");
|
|
}
|
|
else throw ImageWriterException("unknown file type: " + type);
|
|
}
|
|
else throw ImageWriterException("Could not write to empty stream" );
|
|
}
|
|
|
|
|
|
template <typename T>
|
|
void save_to_stream(T const& image,
|
|
std::ostream & stream,
|
|
std::string const& type)
|
|
{
|
|
if (stream && image.width() > 0 && image.height() > 0)
|
|
{
|
|
std::string t = type;
|
|
std::transform(t.begin(), t.end(), t.begin(), ::tolower);
|
|
if (t == "png" || boost::algorithm::starts_with(t, "png"))
|
|
{
|
|
#if defined(HAVE_PNG)
|
|
int colors = 256;
|
|
int compression = Z_DEFAULT_COMPRESSION; // usually mapped to z=6 in zlib
|
|
int strategy = Z_DEFAULT_STRATEGY;
|
|
int trans_mode = -1;
|
|
double gamma = -1;
|
|
bool use_octree = true;
|
|
bool use_miniz = false;
|
|
|
|
handle_png_options(t,
|
|
&colors,
|
|
&compression,
|
|
&strategy,
|
|
&trans_mode,
|
|
&gamma,
|
|
&use_octree,
|
|
&use_miniz);
|
|
|
|
if (colors < 0)
|
|
{
|
|
save_as_png(stream, image, compression, strategy, trans_mode, use_miniz);
|
|
}
|
|
else if (use_octree)
|
|
{
|
|
save_as_png8_oct(stream, image, colors, compression, strategy, trans_mode, use_miniz);
|
|
}
|
|
else
|
|
{
|
|
save_as_png8_hex(stream, image, colors, compression, strategy, trans_mode, gamma, use_miniz);
|
|
}
|
|
#else
|
|
throw ImageWriterException("png output is not enabled in your build of Mapnik");
|
|
#endif
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "tif"))
|
|
{
|
|
#if defined(HAVE_TIFF)
|
|
save_as_tiff(stream, image);
|
|
#else
|
|
throw ImageWriterException("tiff output is not enabled in your build of Mapnik");
|
|
#endif
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "jpeg"))
|
|
{
|
|
#if defined(HAVE_JPEG)
|
|
int quality = 85;
|
|
std::string val = t.substr(4);
|
|
if (!val.empty())
|
|
{
|
|
if (!mapnik::util::string2int(val,quality) || quality < 0 || quality > 100)
|
|
{
|
|
throw ImageWriterException("invalid jpeg quality: '" + val + "'");
|
|
}
|
|
}
|
|
save_as_jpeg(stream, quality, image);
|
|
#else
|
|
throw ImageWriterException("jpeg output is not enabled in your build of Mapnik");
|
|
#endif
|
|
}
|
|
else if (boost::algorithm::starts_with(t, "webp"))
|
|
{
|
|
#if defined(HAVE_WEBP)
|
|
int quality = 100;
|
|
std::string val = t.substr(4);
|
|
if (!val.empty())
|
|
{
|
|
if (!mapnik::util::string2int(val,quality) || quality < 0 || quality > 100)
|
|
{
|
|
throw ImageWriterException("invalid webp quality: '" + val + "'");
|
|
}
|
|
}
|
|
int compression = 0;
|
|
save_as_webp(stream, quality, compression, image);
|
|
#else
|
|
throw ImageWriterException("webp output is not enabled in your build of Mapnik");
|
|
#endif
|
|
}
|
|
else throw ImageWriterException("unknown file type: " + type);
|
|
}
|
|
else throw ImageWriterException("Could not write to empty stream" );
|
|
}
|
|
|
|
template <typename T>
|
|
void save_to_file(T const& image, std::string const& filename)
|
|
{
|
|
boost::optional<std::string> type = type_from_filename(filename);
|
|
if (type)
|
|
{
|
|
save_to_file<T>(image, filename, *type);
|
|
}
|
|
else throw ImageWriterException("Could not write file to " + filename );
|
|
}
|
|
|
|
template <typename T>
|
|
void save_to_file(T const& image, std::string const& filename, rgba_palette const& palette)
|
|
{
|
|
boost::optional<std::string> type = type_from_filename(filename);
|
|
if (type)
|
|
{
|
|
save_to_file<T>(image, filename, *type, palette);
|
|
}
|
|
else throw ImageWriterException("Could not write file to " + filename );
|
|
}
|
|
|
|
#if defined(HAVE_CAIRO)
|
|
// TODO - move to separate cairo_io.hpp
|
|
void save_to_cairo_file(mapnik::Map const& map, std::string const& filename, double scale_factor)
|
|
{
|
|
boost::optional<std::string> type = type_from_filename(filename);
|
|
if (type)
|
|
{
|
|
save_to_cairo_file(map,filename,*type,scale_factor);
|
|
}
|
|
else throw ImageWriterException("Could not write file to " + filename );
|
|
}
|
|
|
|
void save_to_cairo_file(mapnik::Map const& map,
|
|
std::string const& filename,
|
|
std::string const& type,
|
|
double scale_factor)
|
|
{
|
|
std::ofstream file (filename.c_str(), std::ios::out|std::ios::trunc|std::ios::binary);
|
|
if (file)
|
|
{
|
|
cairo_surface_ptr surface;
|
|
unsigned width = map.width();
|
|
unsigned height = map.height();
|
|
if (type == "pdf")
|
|
{
|
|
#ifdef CAIRO_HAS_PDF_SURFACE
|
|
surface = cairo_surface_ptr(cairo_pdf_surface_create(filename.c_str(),width,height),cairo_surface_closer());
|
|
#else
|
|
throw ImageWriterException("PDFSurface not supported in the cairo backend");
|
|
#endif
|
|
}
|
|
#ifdef CAIRO_HAS_SVG_SURFACE
|
|
else if (type == "svg")
|
|
{
|
|
surface = cairo_surface_ptr(cairo_svg_surface_create(filename.c_str(),width,height),cairo_surface_closer());
|
|
}
|
|
#endif
|
|
#ifdef CAIRO_HAS_PS_SURFACE
|
|
else if (type == "ps")
|
|
{
|
|
surface = cairo_surface_ptr(cairo_ps_surface_create(filename.c_str(),width,height),cairo_surface_closer());
|
|
}
|
|
#endif
|
|
#ifdef CAIRO_HAS_IMAGE_SURFACE
|
|
else if (type == "ARGB32")
|
|
{
|
|
surface = cairo_surface_ptr(cairo_image_surface_create(CAIRO_FORMAT_ARGB32,width,height),cairo_surface_closer());
|
|
}
|
|
else if (type == "RGB24")
|
|
{
|
|
surface = cairo_surface_ptr(cairo_image_surface_create(CAIRO_FORMAT_RGB24,width,height),cairo_surface_closer());
|
|
}
|
|
#endif
|
|
else
|
|
{
|
|
throw ImageWriterException("unknown file type: " + type);
|
|
}
|
|
|
|
//cairo_t * ctx = cairo_create(surface);
|
|
|
|
// TODO - expose as user option
|
|
/*
|
|
if (type == "ARGB32" || type == "RGB24")
|
|
{
|
|
context->set_antialias(Cairo::ANTIALIAS_NONE);
|
|
}
|
|
*/
|
|
|
|
mapnik::cairo_renderer<cairo_ptr> ren(map, create_context(surface), scale_factor);
|
|
ren.apply();
|
|
|
|
if (type == "ARGB32" || type == "RGB24")
|
|
{
|
|
cairo_surface_write_to_png(&*surface, filename.c_str());
|
|
}
|
|
cairo_surface_finish(&*surface);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
template void save_to_file<image_data_32>(image_data_32 const&,
|
|
std::string const&,
|
|
std::string const&);
|
|
|
|
template void save_to_file<image_data_32>(image_data_32 const&,
|
|
std::string const&,
|
|
std::string const&,
|
|
rgba_palette const& palette);
|
|
|
|
template void save_to_file<image_data_32>(image_data_32 const&,
|
|
std::string const&);
|
|
|
|
template void save_to_file<image_data_32>(image_data_32 const&,
|
|
std::string const&,
|
|
rgba_palette const& palette);
|
|
|
|
template std::string save_to_string<image_data_32>(image_data_32 const&,
|
|
std::string const&);
|
|
|
|
template std::string save_to_string<image_data_32>(image_data_32 const&,
|
|
std::string const&,
|
|
rgba_palette const& palette);
|
|
|
|
template void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
|
std::string const&,
|
|
std::string const&);
|
|
|
|
template void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
|
std::string const&,
|
|
std::string const&,
|
|
rgba_palette const& palette);
|
|
|
|
template void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
|
std::string const&);
|
|
|
|
template void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
|
std::string const&,
|
|
rgba_palette const& palette);
|
|
|
|
template std::string save_to_string<image_view<image_data_32> > (image_view<image_data_32> const&,
|
|
std::string const&);
|
|
|
|
template std::string save_to_string<image_view<image_data_32> > (image_view<image_data_32> const&,
|
|
std::string const&,
|
|
rgba_palette const& palette);
|
|
|
|
void save_to_file(image_32 const& image,std::string const& file)
|
|
{
|
|
save_to_file<image_data_32>(image.data(), file);
|
|
}
|
|
|
|
void save_to_file (image_32 const& image,
|
|
std::string const& file,
|
|
std::string const& type)
|
|
{
|
|
save_to_file<image_data_32>(image.data(), file, type);
|
|
}
|
|
|
|
void save_to_file (image_32 const& image,
|
|
std::string const& file,
|
|
std::string const& type,
|
|
rgba_palette const& palette)
|
|
{
|
|
save_to_file<image_data_32>(image.data(), file, type, palette);
|
|
}
|
|
|
|
std::string save_to_string(image_32 const& image,
|
|
std::string const& type)
|
|
{
|
|
return save_to_string<image_data_32>(image.data(), type);
|
|
}
|
|
|
|
std::string save_to_string(image_32 const& image,
|
|
std::string const& type,
|
|
rgba_palette const& palette)
|
|
{
|
|
return save_to_string<image_data_32>(image.data(), type, palette);
|
|
}
|
|
|
|
}
|