136 lines
4.8 KiB
C++
136 lines
4.8 KiB
C++
/*
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Copyright 2005-2007 Adobe Systems Incorporated
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Use, modification and distribution are subject to the Boost Software License,
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Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt).
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See http://opensource.adobe.com/gil for most recent version including documentation.
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*/
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/*************************************************************************************************/
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#ifndef GIL_TIFF_DYNAMIC_IO_H
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#define GIL_TIFF_DYNAMIC_IO_H
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/// \file
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/// \brief Support for reading and writing TIFF files
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/// Requires libtiff!
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/// \author Hailin Jin and Lubomir Bourdev \n
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/// Adobe Systems Incorporated
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/// \date 2005-2007 \n Last updated June 10, 2006
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//
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// We are currently providing the following functions:
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// template <typename Images> void tiff_read_image(const char*,any_image<Images>)
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// template <typename Views> void tiff_write_view(const char*,any_image_view<Views>)
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//
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#include <string>
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#include <boost/mpl/bool.hpp>
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#include "../dynamic_image/dynamic_image_all.hpp"
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#include "io_error.hpp"
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#include "tiff_io.hpp"
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#include "dynamic_io.hpp"
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namespace boost { namespace gil {
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namespace detail {
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struct tiff_write_is_supported {
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template<typename View> struct apply
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: public mpl::bool_<tiff_write_support<View>::is_supported> {};
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};
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class tiff_writer_dynamic : public tiff_writer {
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public:
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typedef void result_type;
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tiff_writer_dynamic(const char* filename) : tiff_writer(filename) {}
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template <typename Views>
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void write_view(const any_image_view<Views>& runtime_view) {
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dynamic_io_fnobj<tiff_write_is_supported, tiff_writer> op(this);
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apply_operation(runtime_view,op);
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}
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};
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class tiff_type_format_checker {
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int _bit_depth;
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int _color_type;
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public:
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tiff_type_format_checker(int bit_depth_in,int color_type_in) :
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_bit_depth(bit_depth_in),_color_type(color_type_in) {}
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template <typename Image>
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bool apply() {
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return tiff_read_support<typename Image::view_t>::bit_depth==_bit_depth &&
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tiff_read_support<typename Image::view_t>::color_type==_color_type;
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}
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};
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struct tiff_read_is_supported {
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template<typename View> struct apply
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: public mpl::bool_<tiff_read_support<View>::is_supported> {};
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};
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class tiff_reader_dynamic : public tiff_reader {
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public:
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tiff_reader_dynamic(const char* filename) : tiff_reader(filename) {}
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template <typename Images>
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void read_image(any_image<Images>& im) {
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int width,height;
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unsigned short bps,photometric;
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TIFFGetField(_tp,TIFFTAG_IMAGEWIDTH,&width);
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TIFFGetField(_tp,TIFFTAG_IMAGELENGTH,&height);
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TIFFGetField(_tp,TIFFTAG_BITSPERSAMPLE,&bps);
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TIFFGetField(_tp,TIFFTAG_PHOTOMETRIC,&photometric);
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if (!construct_matched(im,tiff_type_format_checker(bps,photometric))) {
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io_error("tiff_reader_dynamic::read_image(): no matching image type between those of the given any_image and that of the file");
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} else {
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im.recreate(width,height);
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dynamic_io_fnobj<tiff_read_is_supported, tiff_reader> op(this);
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apply_operation(view(im),op);
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}
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}
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};
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} // namespace detail
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/// \ingroup TIFF_IO
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/// \brief reads a TIFF image into a run-time instantiated image
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/// Opens the given tiff file name, selects the first type in Images whose color space and channel are compatible to those of the image file
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/// and creates a new image of that type with the dimensions specified by the image file.
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/// Throws std::ios_base::failure if none of the types in Images are compatible with the type on disk.
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template <typename Images>
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inline void tiff_read_image(const char* filename,any_image<Images>& im) {
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detail::tiff_reader_dynamic m(filename);
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m.read_image(im);
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}
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/// \ingroup TIFF_IO
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/// \brief reads a TIFF image into a run-time instantiated image
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template <typename Images>
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inline void tiff_read_image(const std::string& filename,any_image<Images>& im) {
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tiff_read_image(filename.c_str(),im);
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}
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/// \ingroup TIFF_IO
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/// \brief Saves the currently instantiated view to a tiff file specified by the given tiff image file name.
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/// Throws std::ios_base::failure if the currently instantiated view type is not supported for writing by the I/O extension
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/// or if it fails to create the file.
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template <typename Views>
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inline void tiff_write_view(const char* filename,const any_image_view<Views>& runtime_view) {
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detail::tiff_writer_dynamic m(filename);
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m.write_view(runtime_view);
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}
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/// \ingroup TIFF_IO
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/// \brief Saves the currently instantiated view to a tiff file specified by the given tiff image file name.
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template <typename Views>
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inline void tiff_write_view(const std::string& filename,const any_image_view<Views>& runtime_view) {
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tiff_write_view(filename.c_str(),runtime_view);
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}
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} } // namespace boost::gil
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#endif
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