You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
2 years ago
|
//
|
||
|
|
// Copyright 2009 Christian Henning
|
||
|
|
//
|
||
|
|
// Distributed under 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_DETAIL_IS_ALLOWED_HPP
|
||
|
|
#define BOOST_GIL_EXTENSION_IO_JPEG_DETAIL_IS_ALLOWED_HPP
|
||
|
|
|
||
|
|
#include <boost/gil/extension/io/jpeg/tags.hpp>
|
||
|
|
|
||
|
|
#include <type_traits>
|
||
|
|
|
||
|
|
namespace boost { namespace gil { namespace detail {
|
||
|
|
|
||
|
|
template< typename View >
|
||
|
|
bool is_allowed( const image_read_info< jpeg_tag >& info
|
||
|
|
, std::true_type // is read_and_no_convert
|
||
|
|
)
|
||
|
|
{
|
||
|
|
if( info._color_space == JCS_YCbCr )
|
||
|
|
{
|
||
|
|
// We read JCS_YCbCr files as rgb.
|
||
|
|
return ( is_read_supported< typename View::value_type
|
||
|
|
, jpeg_tag
|
||
|
|
>::_color_space == JCS_RGB );
|
||
|
|
}
|
||
|
|
|
||
|
|
return ( is_read_supported< typename View::value_type
|
||
|
|
, jpeg_tag
|
||
|
|
>::_color_space == info._color_space );
|
||
|
|
}
|
||
|
|
|
||
|
|
template< typename View >
|
||
|
|
bool is_allowed( const image_read_info< jpeg_tag >& /* info */
|
||
|
|
, std::false_type // is read_and_convert
|
||
|
|
)
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace detail
|
||
|
|
} // namespace gil
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
#endif
|