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/*
Copyright 2007-2008 Christian Henning
Use, modification and distribution are subject to the Boost Software License,
Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt).
*/
/*************************************************************************************************/
#ifndef BOOST_GIL_EXTENSION_IO_JPEG_OLD_HPP
#define BOOST_GIL_EXTENSION_IO_JPEG_OLD_HPP
////////////////////////////////////////////////////////////////////////////////////////
/// \file
/// \brief
/// \author Christian Henning \n
///
/// \date 2007-2008 \n
///
////////////////////////////////////////////////////////////////////////////////////////
#include <boost/gil/extension/io/jpeg.hpp>
namespace boost { namespace gil {
/// \ingroup JPEG_IO
/// \brief Returns the width and height of the JPEG file at the specified location.
/// Throws std::ios_base::failure if the location does not correspond to a valid JPEG file
template< typename String >
inline
point2< std::ptrdiff_t > jpeg_read_dimensions( const String& filename )
{
typedef typename get_reader_backend< String
, jpeg_tag
>::type backend_t;
backend_t backend = read_image_info( filename
, jpeg_tag()
);
return point2< std::ptrdiff_t >( backend._info._width
, backend._info._height
);
}
/// \ingroup JPEG_IO
/// \brief Loads the image specified by the given jpeg image file name into the given view.
/// Triggers a compile assert if the view color space and channel depth are not supported by the JPEG library or by the I/O extension.
/// Throws std::ios_base::failure if the file is not a valid JPEG file, or if its color space or channel depth are not
/// compatible with the ones specified by View, or if its dimensions don't match the ones of the view.
template< typename String
, typename View
>
inline
void jpeg_read_view( const String& filename
, const View& view
)
{
read_view( filename
, view
, jpeg_tag()
);
}
/// \ingroup JPEG_IO
/// \brief Allocates a new image whose dimensions are determined by the given jpeg image file, and loads the pixels into it.
/// Triggers a compile assert if the image color space or channel depth are not supported by the JPEG library or by the I/O extension.
/// Throws std::ios_base::failure if the file is not a valid JPEG file, or if its color space or channel depth are not
/// compatible with the ones specified by Image
template< typename String
, typename Image
>
inline
void jpeg_read_image( const String& filename
, Image& img
)
{
read_image( filename
, img
, jpeg_tag()
);
}
/// \ingroup JPEG_IO
/// \brief Loads and color-converts the image specified by the given jpeg image file name into the given view.
/// Throws std::ios_base::failure if the file is not a valid JPEG file, or if its dimensions don't match the ones of the view.
template< typename String
, typename View
, typename CC
>
inline
void jpeg_read_and_convert_view( const String& filename
, const View& view
, CC cc
)
{
read_and_convert_view( filename
, view
, cc
, jpeg_tag()
);
}
/// \ingroup JPEG_IO
/// \brief Loads and color-converts the image specified by the given jpeg image file name into the given view.
/// Throws std::ios_base::failure if the file is not a valid JPEG file, or if its dimensions don't match the ones of the view.
template< typename String
, typename View
>
inline
void jpeg_read_and_convert_view( const String& filename
, const View& view
)
{
read_and_convert_view( filename
, view
, jpeg_tag()
);
}
/// \ingroup JPEG_IO
/// \brief Allocates a new image whose dimensions are determined by the given jpeg image file, loads and color-converts the pixels into it.
/// Throws std::ios_base::failure if the file is not a valid JPEG file
template< typename String
, typename Image
, typename CC
>
inline
void jpeg_read_and_convert_image( const String& filename
, Image& img
, CC cc
)
{
read_and_convert_image( filename
, img
, cc
, jpeg_tag()
);
}
/// \ingroup JPEG_IO
/// \brief Allocates a new image whose dimensions are determined by the given jpeg image file, loads and color-converts the pixels into it.
/// Throws std::ios_base::failure if the file is not a valid JPEG file
template< typename String
, typename Image
>
inline
void jpeg_read_and_convert_image( const String filename
, Image& img
)
{
read_and_convert_image( filename
, img
, jpeg_tag()
);
}
/// \ingroup JPEG_IO
/// \brief Saves the view to a jpeg file specified by the given jpeg image file name.
/// Triggers a compile assert if the view color space and channel depth are not supported by the JPEG library or by the I/O extension.
/// Throws std::ios_base::failure if it fails to create the file.
template< typename String
, typename View
>
inline
void jpeg_write_view( const String& filename
, const View& view
, int quality = jpeg_quality::default_value
)
{
write_view( filename
, view
, image_write_info< jpeg_tag >( quality )
);
}
} // namespace gil
} // namespace boost
#endif
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