Generic Image Library : tiff_dynamic

00001 /*
00002     Copyright 2005-2007 Adobe Systems Incorporated
00003    
00004     Use, modification and distribution are subject to the Boost Software License,
00005     Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
00006     http://www.boost.org/LICENSE_1_0.txt).
00007 
00008     See http://opensource.adobe.com/gil for most recent version including documentation.
00009 */
00010 
00011 /*************************************************************************************************/
00012 
00013 #ifndef GIL_TIFF_DYNAMIC_IO_H
00014 #define GIL_TIFF_DYNAMIC_IO_H
00015 
00022 //
00023 // We are currently providing the following functions:
00024 // template <typename Images> void tiff_read_image(const char*,any_image<Images>)
00025 // template <typename Views> void tiff_write_view(const char*,any_image_view<Views>)
00026 //
00027 
00028 #include <string>
00029 #include <boost/mpl/bool.hpp>
00030 #include "../dynamic_image/dynamic_image_all.hpp"
00031 #include "io_error.hpp"
00032 #include "tiff_io.hpp"
00033 #include "dynamic_io.hpp"
00034 
00035 namespace boost { namespace gil {
00036 
00037 namespace detail {
00038 
00039 struct tiff_write_is_supported {
00040     template<typename View> struct apply
00041         : public mpl::bool_<tiff_write_support<View>::is_supported> {};
00042 };
00043 
00044 class tiff_writer_dynamic : public tiff_writer {
00045 public:
00046     typedef void result_type;
00047     tiff_writer_dynamic(const char* filename) : tiff_writer(filename) {}
00048 
00049     template <typename Views>
00050     void write_view(const any_image_view<Views>& runtime_view) {
00051         dynamic_io_fnobj<tiff_write_is_supported, tiff_writer> op(this);
00052         apply_operation(runtime_view,op);
00053     }
00054 };
00055 
00056 class tiff_type_format_checker {
00057     int _bit_depth;
00058     int _color_type;
00059 public:
00060     tiff_type_format_checker(int bit_depth_in,int color_type_in) :
00061         _bit_depth(bit_depth_in),_color_type(color_type_in) {}
00062     template <typename Image>
00063     bool apply() {
00064         return tiff_read_support<typename Image::view_t>::bit_depth==_bit_depth &&
00065                tiff_read_support<typename Image::view_t>::color_type==_color_type;
00066     }
00067 };
00068 
00069 struct tiff_read_is_supported {
00070     template<typename View> struct apply
00071         : public mpl::bool_<tiff_read_support<View>::is_supported> {};
00072 };
00073 
00074 class tiff_reader_dynamic : public tiff_reader {
00075 public:
00076     tiff_reader_dynamic(const char* filename) : tiff_reader(filename) {}
00077 
00078     template <typename Images>
00079     void read_image(any_image<Images>& im) {
00080         int width,height;
00081         unsigned short bps,photometric;
00082         TIFFGetField(_tp,TIFFTAG_IMAGEWIDTH,&width);
00083         TIFFGetField(_tp,TIFFTAG_IMAGELENGTH,&height);
00084         TIFFGetField(_tp,TIFFTAG_BITSPERSAMPLE,&bps);
00085         TIFFGetField(_tp,TIFFTAG_PHOTOMETRIC,&photometric);
00086         if (!construct_matched(im,tiff_type_format_checker(bps,photometric))) {
00087             io_error("tiff_reader_dynamic::read_image(): no matching image type between those of the given any_image and that of the file");
00088         } else {
00089             im.recreate(width,height);
00090             dynamic_io_fnobj<tiff_read_is_supported, tiff_reader> op(this);
00091             apply_operation(view(im),op);
00092         }
00093     }
00094 };
00095 
00096 } // namespace detail
00097 
00103 template <typename Images>
00104 inline void tiff_read_image(const char* filename,any_image<Images>& im) {
00105     detail::tiff_reader_dynamic m(filename);
00106     m.read_image(im);
00107 }
00108 
00111 template <typename Images>
00112 inline void tiff_read_image(const std::string& filename,any_image<Images>& im) {
00113     tiff_read_image(filename.c_str(),im);
00114 }
00115 
00120 template <typename Views>
00121 inline void tiff_write_view(const char* filename,const any_image_view<Views>& runtime_view) {
00122     detail::tiff_writer_dynamic m(filename);
00123     m.write_view(runtime_view);
00124 }
00125 
00128 template <typename Views>
00129 inline void tiff_write_view(const std::string& filename,const any_image_view<Views>& runtime_view) {
00130     tiff_write_view(filename.c_str(),runtime_view);
00131 }
00132 
00133 } }  // namespace boost::gil
00134 
00135 #endif
tiff_dynamic_io.hpp
