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/*
Copyright 2009 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_RAW_DETAIL_IS_ALLOWED_HPP
#define BOOST_GIL_EXTENSION_IO_RAW_DETAIL_IS_ALLOWED_HPP
////////////////////////////////////////////////////////////////////////////////////////
/// \file
/// \brief
/// \author Olivier Tournaire \n
///
/// \date 2011 \n
///
////////////////////////////////////////////////////////////////////////////////////////
#include <boost/gil/io/base.hpp>
#include <iostream>
namespace boost { namespace gil { namespace detail {
template< typename View >
bool is_allowed( const image_read_info< raw_tag >& info
, mpl::true_ // is read_and_no_convert
)
{
typedef typename get_pixel_type< View >::type pixel_t;
typedef typename num_channels< pixel_t >::value_type num_channel_t;
typedef typename channel_traits< typename element_type< typename View::value_type >::type >::value_type channel_t;
const num_channel_t dst_samples_per_pixel = num_channels< pixel_t >::value;
const unsigned int dst_bits_per_pixel = detail::unsigned_integral_num_bits< channel_t >::value;
const bool is_type_signed = boost::is_signed< channel_t >::value;
return( dst_samples_per_pixel == info._samples_per_pixel &&
dst_bits_per_pixel == static_cast<unsigned int>(info._bits_per_pixel) &&
!is_type_signed );
}
template< typename View >
bool is_allowed( const image_read_info< raw_tag >& /* info */
, mpl::false_ // is read_and_convert
)
{
return true;
}
} // namespace detail
} // namespace gil
} // namespace boost
#endif
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