+ remove unused code
+ add 'add_border' helper method for debugging raster alignment issues
This commit is contained in:
Artem Pavlenko
parent
ede29a1aff
commit
f3eed56396
1 changed files with 210 additions and 301 deletions
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@ -40,293 +40,202 @@
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namespace mapnik {
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class ImageWriterException : public std::exception
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class ImageWriterException : public std::exception
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{
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private:
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std::string message_;
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public:
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ImageWriterException(const std::string& message)
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: message_(message) {}
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~ImageWriterException() throw() {}
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virtual const char* what() const throw()
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{
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private:
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std::string message_;
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public:
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ImageWriterException(const std::string& message)
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: message_(message) {}
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return message_.c_str();
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}
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};
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~ImageWriterException() throw() {}
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MAPNIK_DECL void save_to_cairo_file(mapnik::Map const& map,
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std::string const& filename,
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std::string const& type);
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virtual const char* what() const throw()
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{
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return message_.c_str();
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}
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};
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template <typename T>
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MAPNIK_DECL void save_to_file(T const& image,
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std::string const& filename,
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std::string const& type);
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// guess type from file extension
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template <typename T>
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MAPNIK_DECL void save_to_file(T const& image,
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std::string const& filename);
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MAPNIK_DECL void save_to_cairo_file(mapnik::Map const& map,
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std::string const& filename,
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std::string const& type);
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template <typename T>
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MAPNIK_DECL std::string save_to_string(T const& image,
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std::string const& type);
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template <typename T>
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MAPNIK_DECL void save_to_file(T const& image,
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std::string const& filename,
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std::string const& type);
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// guess type from file extension
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template <typename T>
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MAPNIK_DECL void save_to_file(T const& image,
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std::string const& filename);
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template <typename T>
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void save_as_png(T const& image,
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std::string const& filename);
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template <typename T>
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MAPNIK_DECL std::string save_to_string(T const& image,
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std::string const& type);
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template <typename T>
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void save_as_jpeg(std::string const& filename,
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int quality,
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T const& image);
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template <typename T>
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void save_as_png(T const& image,
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std::string const& filename);
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inline bool is_png (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".png"));
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}
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template <typename T>
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void save_as_jpeg(std::string const& filename,
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int quality,
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T const& image);
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inline bool is_jpeg (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".jpg")) ||
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boost::algorithm::iends_with(filename,std::string(".jpeg"));
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}
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inline bool is_png (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".png"));
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}
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inline bool is_tiff (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".tif")) ||
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boost::algorithm::iends_with(filename,std::string(".tiff"));
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}
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inline bool is_jpeg (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".jpg")) ||
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boost::algorithm::iends_with(filename,std::string(".jpeg"));
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}
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inline bool is_pdf (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".pdf"));
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}
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inline bool is_tiff (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".tif")) ||
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boost::algorithm::iends_with(filename,std::string(".tiff"));
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}
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inline bool is_svg (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".svg"));
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}
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inline bool is_pdf (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".pdf"));
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}
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inline bool is_ps (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".ps"));
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}
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inline bool is_svg (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".svg"));
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}
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inline boost::optional<std::string> type_from_filename(std::string const& filename)
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inline bool is_ps (std::string const& filename)
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{
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return boost::algorithm::iends_with(filename,std::string(".ps"));
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}
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{
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typedef boost::optional<std::string> result_type;
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if (is_png(filename)) return result_type("png");
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if (is_jpeg(filename)) return result_type("jpeg");
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if (is_tiff(filename)) return result_type("tiff");
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if (is_pdf(filename)) return result_type("pdf");
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if (is_svg(filename)) return result_type("svg");
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if (is_ps(filename)) return result_type("ps");
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return result_type();
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}
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inline boost::optional<std::string> type_from_filename(std::string const& filename)
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inline std::string guess_type( const std::string & filename )
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{
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std::string::size_type idx = filename.find_last_of(".");
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if ( idx != std::string::npos ) {
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return filename.substr( idx + 1 );
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}
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return "<unknown>";
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}
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{
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typedef boost::optional<std::string> result_type;
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if (is_png(filename)) return result_type("png");
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if (is_jpeg(filename)) return result_type("jpeg");
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if (is_tiff(filename)) return result_type("tiff");
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if (is_pdf(filename)) return result_type("pdf");
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if (is_svg(filename)) return result_type("svg");
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if (is_ps(filename)) return result_type("ps");
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return result_type();
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}
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template <typename T>
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double distance(T x0,T y0,T x1,T y1)
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{
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double dx = x1-x0;
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double dy = y1-y0;
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return std::sqrt(dx * dx + dy * dy);
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}
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inline std::string guess_type( const std::string & filename )
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{
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std::string::size_type idx = filename.find_last_of(".");
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if ( idx != std::string::npos ) {
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return filename.substr( idx + 1 );
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}
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return "<unknown>";
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}
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template <typename T>
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double distance(T x0,T y0,T x1,T y1)
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{
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double dx = x1-x0;
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double dy = y1-y0;
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return std::sqrt(dx * dx + dy * dy);
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}
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// add 1-px border around image - useful for debugging alignment issues
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template <typename T>
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void add_border(T & image)
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{
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for (unsigned x = 0; x < image.width();++x)
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{
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image(x,0) = 0xff0000ff; // red
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image(x,image.height()-1) = 0xff00ff00; //green
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}
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for (unsigned y = 0; y < image.height();++y)
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{
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image(0,y) = 0xff00ffff; //yellow
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image(image.width()-1,y) = 0xffff0000; // blue
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}
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}
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template <typename Image>
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inline void scale_down2(Image& target,const Image& source)
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{
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int source_width=source.width();
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int source_height=source.height();
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template <typename Image>
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inline void scale_image (Image& target,const Image& source)
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{
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int target_width=target.width();
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int target_height=target.height();
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if (target_width<source_width/2 || target_height<source_height/2)
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return;
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int y1,x1;
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for (int y=0;y<target_height;++y)
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{
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y1=2*y;
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for(int x=0;x<target_width;++x)
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{
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x1=2*x;
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//todo calculate average???
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target(x,y)=source(x1,y1);
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}
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}
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}
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int source_width=source.width();
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int source_height=source.height();
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template <typename Image,int scale>
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struct image_op
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{
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static void scale_up(Image& target,const Image& source)
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{
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if (scale<3) return;
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int source_width=source.width();
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int source_height=source.height();
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int target_width=target.width();
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int target_height=target.height();
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int target_width=target.width();
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int target_height=target.height();
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if (target_width<scale*source_width || target_height<scale*source_height)
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return;
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for (int y=0;y<source_height;++y)
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{
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for(int x=0;x<source_width;++x)
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{
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unsigned p=source(x,y);
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for (int i=0;i<scale;++i)
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for (int j=0;j<scale;++j)
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target(scale*x+i,scale*y+j)=p;
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}
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}
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}
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};
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template <typename Image>
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struct image_op<Image,2>
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{
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static void scale_up(Image& target,const Image& source)
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{
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int source_width=source.width();
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int source_height=source.height();
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int target_width=target.width();
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int target_height=target.height();
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if (target_width<2*source_width || target_height<2*source_height)
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return;
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for (int y=0;y<source_height;++y)
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{
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for(int x=0;x<source_width;++x)
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{
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target(2*x,2*y)=source(x,y);
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target(2*x+1,2*y)=source(x,y);
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target(2*x+1,2*y+1)=source(x,y);
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target(2*x,2*y+1)=source(x,y);
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}
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}
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}
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};
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namespace
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{
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template <typename Image>
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inline void scale_up(Image& target,const Image& source,unsigned scale)
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{
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int source_width=source.width();
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int source_height=source.height();
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int target_width=target.width();
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int target_height=target.height();
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if (target_width<scale*source_width || target_height<scale*source_height)
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return;
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for (int y=0;y<source_height;++y)
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{
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for(int x=0;x<source_width;++x)
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{
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unsigned p=source(x,y);
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for (int i=0;i<scale;++i)
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for (int j=0;j<scale;++j)
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target(scale*x+i,scale*y+j)=p;
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}
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}
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}
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}
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template <typename Image>
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void scale_image(Image& target,const Image& source,unsigned scale)
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{
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if (scale==2)
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{
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image_op<Image,2>::scale_up(target,source);
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}
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else
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{
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scale_up<Image>(target,source,scale);
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}
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}
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template <typename Image>
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inline void scale_image (Image& target,const Image& source)
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{
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int source_width=source.width();
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int source_height=source.height();
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int target_width=target.width();
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int target_height=target.height();
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if (source_width<1 || source_height<1 ||
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target_width<1 || target_height<1) return;
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int int_part_y=source_height/target_height;
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int fract_part_y=source_height%target_height;
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int err_y=0;
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int int_part_x=source_width/target_width;
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int fract_part_x=source_width%target_width;
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int err_x=0;
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int x=0,y=0,xs=0,ys=0;
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int prev_y=-1;
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for (y=0;y<target_height;++y)
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{
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if (ys==prev_y)
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{
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if (source_width<1 || source_height<1 ||
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target_width<1 || target_height<1) return;
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int int_part_y=source_height/target_height;
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int fract_part_y=source_height%target_height;
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int err_y=0;
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int int_part_x=source_width/target_width;
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int fract_part_x=source_width%target_width;
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int err_x=0;
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int x=0,y=0,xs=0,ys=0;
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int prev_y=-1;
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for (y=0;y<target_height;++y)
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{
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if (ys==prev_y)
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{
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target.setRow(y,target.getRow(y-1),target_width);
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}
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else
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{
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}
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else
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{
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xs=0;
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for (x=0;x<target_width;++x)
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{
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target(x,y)=source(xs,ys);
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xs+=int_part_x;
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err_x+=fract_part_x;
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if (err_x>=target_width)
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{
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err_x-=target_width;
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++xs;
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}
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target(x,y)=source(xs,ys);
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xs+=int_part_x;
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err_x+=fract_part_x;
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if (err_x>=target_width)
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{
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err_x-=target_width;
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++xs;
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}
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}
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prev_y=ys;
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}
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ys+=int_part_y;
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err_y+=fract_part_y;
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if (err_y>=target_height)
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{
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}
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ys+=int_part_y;
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err_y+=fract_part_y;
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if (err_y>=target_height)
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{
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err_y-=target_height;
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++ys;
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}
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}
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}
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}
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}
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template <typename Image>
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inline void scale_image_bilinear (Image& target,const Image& source)
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{
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#ifdef MAPNIK_DEBUG
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add_border(target);
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#endif
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}
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int source_width=source.width();
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int source_height=source.height();
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template <typename Image>
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inline void scale_image_bilinear (Image& target,const Image& source)
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{
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int target_width=target.width();
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int target_height=target.height();
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int source_width=source.width();
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int source_height=source.height();
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if (source_width<1 || source_height<1 ||
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target_width<1 || target_height<1) return;
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int x=0,y=0,xs=0,ys=0;
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int tw2 = target_width/2;
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int th2 = target_height/2;
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int target_width=target.width();
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int target_height=target.height();
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if (source_width<1 || source_height<1 ||
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target_width<1 || target_height<1) return;
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int x=0,y=0,xs=0,ys=0;
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int tw2 = target_width/2;
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int th2 = target_height/2;
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for (y=0;y<target_height;++y)
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{
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for (y=0;y<target_height;++y)
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{
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ys = y*source_height/target_height;
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int ys1 = ys+1;
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if (ys1>=source_height)
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@ -377,28 +286,28 @@ namespace mapnik {
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}
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target(x,y)=out;
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}
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}
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}
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}
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}
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template <typename Image>
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inline void scale_image_bilinear8 (Image& target,const Image& source)
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{
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template <typename Image>
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inline void scale_image_bilinear8 (Image& target,const Image& source)
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{
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int source_width=source.width();
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int source_height=source.height();
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int source_width=source.width();
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int source_height=source.height();
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int target_width=target.width();
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int target_height=target.height();
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||||
int target_width=target.width();
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int target_height=target.height();
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if (source_width<1 || source_height<1 ||
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target_width<1 || target_height<1) return;
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int x=0,y=0,xs=0,ys=0;
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int tw2 = target_width/2;
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int th2 = target_height/2;
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if (source_width<1 || source_height<1 ||
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target_width<1 || target_height<1) return;
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int x=0,y=0,xs=0,ys=0;
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int tw2 = target_width/2;
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int th2 = target_height/2;
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||||
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||||
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for (y=0;y<target_height;++y)
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||||
{
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||||
for (y=0;y<target_height;++y)
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||||
{
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ys = y*source_height/target_height;
|
||||
int ys1 = ys+1;
|
||||
if (ys1>=source_height)
|
||||
|
|
@ -437,46 +346,46 @@ namespace mapnik {
|
|||
r = (s*yprt+r*yprt1+th2)/target_height;
|
||||
target(x,y)=(0xff<<24) | (r<<16) | (r<<8) | r;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline MAPNIK_DECL 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);
|
||||
}
|
||||
inline MAPNIK_DECL 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);
|
||||
}
|
||||
|
||||
inline MAPNIK_DECL void save_to_file(image_32 const& image,
|
||||
std::string const& file)
|
||||
{
|
||||
save_to_file<image_data_32>(image.data(),file);
|
||||
}
|
||||
inline MAPNIK_DECL void save_to_file(image_32 const& image,
|
||||
std::string const& file)
|
||||
{
|
||||
save_to_file<image_data_32>(image.data(),file);
|
||||
}
|
||||
|
||||
inline MAPNIK_DECL std::string save_to_string(image_32 const& image,
|
||||
std::string const& type)
|
||||
{
|
||||
return save_to_string<image_data_32>(image.data(),type);
|
||||
}
|
||||
inline MAPNIK_DECL std::string save_to_string(image_32 const& image,
|
||||
std::string const& type)
|
||||
{
|
||||
return save_to_string<image_data_32>(image.data(),type);
|
||||
}
|
||||
|
||||
#ifdef _MSC_VER
|
||||
template MAPNIK_DECL void save_to_file<image_data_32>(image_data_32 const&,
|
||||
std::string const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL void save_to_file<image_data_32>(image_data_32 const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL std::string save_to_string<image_data_32>(image_data_32 const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL void save_to_file<image_data_32>(image_data_32 const&,
|
||||
std::string const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL void save_to_file<image_data_32>(image_data_32 const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL std::string save_to_string<image_data_32>(image_data_32 const&,
|
||||
std::string const&);
|
||||
|
||||
template MAPNIK_DECL void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
||||
std::string const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
||||
std::string const&,
|
||||
std::string const&);
|
||||
|
||||
template MAPNIK_DECL void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL void save_to_file<image_view<image_data_32> > (image_view<image_data_32> const&,
|
||||
std::string const&);
|
||||
|
||||
template MAPNIK_DECL std::string save_to_string<image_view<image_data_32> > (image_view<image_data_32> const&,
|
||||
std::string const&);
|
||||
template MAPNIK_DECL std::string save_to_string<image_view<image_data_32> > (image_view<image_data_32> const&,
|
||||
std::string const&);
|
||||
#endif
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue