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WIP. Scale cover art option. Seems to work

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emeric
2014-06-14 20:44:03 +02:00
parent 1d67a548c9
commit 9bada5ee2a
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boost/gil/extension/io_new/formats/tiff/device.hpp
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/*
Copyright 2007-2008 Andreas Pokorny, 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_DETAIL_TIFF_IO_DEVICE_HPP
#define BOOST_GIL_EXTENSION_IO_DETAIL_TIFF_IO_DEVICE_HPP
////////////////////////////////////////////////////////////////////////////////////////
/// \file
/// \brief
/// \author Andreas Pokorny, Christian Henning \n
///
/// \date 2007-2008 \n
///
////////////////////////////////////////////////////////////////////////////////////////
extern "C" {
#include "tiff.h"
#include "tiffio.h"
}
#include "tiffio.hxx"
#include <boost/shared_ptr.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/gil/extension/io_new/detail/base.hpp>
#include <boost/gil/extension/io_new/detail/io_device.hpp>
namespace boost { namespace gil { namespace detail {
class tiff_device_base
{
public:
tiff_device_base()
{}
tiff_device_base( TIFF* tiff_file )
: _tiff_file( tiff_file
, TIFFClose )
{}
template <typename Property>
bool get_property( typename Property::type& value )
{
if( TIFFGetFieldDefaulted( _tiff_file.get()
, Property::tag
, &value ) == 1 )
{
return true;
}
return false;
}
template <typename Property>
inline
bool set_property( const typename Property::type& value )
{
if( TIFFSetField( _tiff_file.get()
, Property::tag
, value ) == 1 )
{
return true;
}
return false;
}
// TIFFIsByteSwapped returns a non-zero value if the image data was in a different
// byte-order than the host machine. Zero is returned if the TIFF file and local
// host byte-orders are the same.
bool are_bytes_swapped()
{
return ( TIFFIsByteSwapped( _tiff_file.get() )) ? true : false;
}
bool is_tiled() const
{
return ( TIFFIsTiled( _tiff_file.get() )) ? true : false;
}
unsigned int get_default_strip_size()
{
return TIFFDefaultStripSize( _tiff_file.get()
, 0 );
}
std::size_t get_scanline_size()
{
return TIFFScanlineSize( _tiff_file.get() );
}
std::size_t get_tile_size()
{
return TIFFTileSize( _tiff_file.get() );
}
int get_field_defaulted( uint16_t*& red
, uint16_t*& green
, uint16_t*& blue
)
{
return TIFFGetFieldDefaulted( _tiff_file.get()
, TIFFTAG_COLORMAP
, &red
, &green
, &blue
);
}
template< typename Buffer >
void read_scanline( Buffer& buffer
, std::ptrdiff_t row
, tsample_t plane
)
{
io_error_if( TIFFReadScanline( _tiff_file.get()
, reinterpret_cast< tdata_t >( &buffer.front() )
, (uint32) row
, plane ) == -1
, "Read error."
);
}
template< typename Buffer >
void read_tile( Buffer& buffer
, std::ptrdiff_t x
, std::ptrdiff_t y
, std::ptrdiff_t z
, tsample_t plane
)
{
if( TIFFReadTile( _tiff_file.get()
, reinterpret_cast< tdata_t >( &buffer.front() )
, (uint32) x
, (uint32) y
, (uint32) z
, plane
) == -1 )
{
std::ostringstream oss;
oss << "Read tile error (" << x << "," << y << "," << z << "," << plane << ").";
io_error(oss.str());
}
}
template< typename Buffer >
void write_scaline( Buffer& buffer
, uint32 row
, tsample_t plane
)
{
io_error_if( TIFFWriteScanline( _tiff_file.get()
, &buffer.front()
, row
, plane
) == -1
, "Write error"
);
}
template< typename Buffer >
void write_tile( Buffer& buffer
, uint32 x
, uint32 y
, uint32 z
, tsample_t plane
)
{
if( TIFFWriteTile( _tiff_file.get()
, &buffer.front()
, x
, y
, z
, plane
) == -1 )
{
std::ostringstream oss;
oss << "Write tile error (" << x << "," << y << "," << z << "," << plane << ").";
io_error(oss.str());
}
}
void set_directory( tdir_t directory )
{
io_error_if( TIFFSetDirectory( _tiff_file.get()
, directory
) != 1
, "Failing to set directory"
);
}
// return false if the given tile width or height is not TIFF compliant (multiple of 16) or larger than image size, true otherwise
bool check_tile_size( tiff_tile_width::type& width
, tiff_tile_length::type& height
)
{
bool result = true;
uint32 tw = static_cast< uint32 >( width );
uint32 th = static_cast< uint32 >( height );
TIFFDefaultTileSize( _tiff_file.get()
, &tw
, &th
);
if(width==0 || width%16!=0)
{
width = tw;
result = false;
}
if(height==0 || height%16!=0)
{
height = th;
result = false;
}
return result;
}
protected:
typedef shared_ptr<TIFF> tiff_file_t;
tiff_file_t _tiff_file;
};
/*!
*
* file_stream_device specialization for tiff images, which are based on TIFF*.
*/
template<>
class file_stream_device< tiff_tag > : public tiff_device_base
{
public:
struct read_tag {};
struct write_tag {};
file_stream_device( std::string const& file_name, read_tag )
{
TIFF* tiff;
io_error_if( ( tiff = TIFFOpen( file_name.c_str(), "r" )) == NULL
, "file_stream_device: failed to open file" );
_tiff_file = tiff_file_t( tiff, TIFFClose );
}
file_stream_device( std::string const& file_name, write_tag )
{
TIFF* tiff;
io_error_if( ( tiff = TIFFOpen( file_name.c_str(), "w" )) == NULL
, "file_stream_device: failed to open file" );
_tiff_file = tiff_file_t( tiff, TIFFClose );
}
file_stream_device( TIFF* tiff_file )
: tiff_device_base( tiff_file )
{}
};
/*!
*
* ostream_device specialization for tiff images.
*/
template<>
class ostream_device< tiff_tag > : public tiff_device_base
{
public:
ostream_device( std::ostream & out )
: _out( out )
{
TIFF* tiff;
io_error_if( ( tiff = TIFFStreamOpen( ""
, &_out
)
) == NULL
, "ostream_device: failed to stream"
);
_tiff_file = tiff_file_t( tiff, TIFFClose );
}
private:
std::ostream& _out;
};
/*!
*
* ostream_device specialization for tiff images.
*/
template<>
class istream_device< tiff_tag > : public tiff_device_base
{
public:
istream_device( std::istream & in )
: _in( in )
{
TIFF* tiff;
io_error_if( ( tiff = TIFFStreamOpen( ""
, &_in
)
) == NULL
, "istream_device: failed to stream"
);
_tiff_file = tiff_file_t( tiff, TIFFClose );
}
private:
std::istream& _in;
};
/*
template< typename T, typename D >
struct is_adaptable_input_device< tiff_tag, T, D > : mpl::false_{};
*/
template< typename FormatTag >
struct is_adaptable_input_device< FormatTag
, TIFF*
, void
>
: mpl::true_
{
typedef file_stream_device< FormatTag > device_type;
};
template< typename FormatTag >
struct is_adaptable_output_device< FormatTag
, TIFF*
, void
>
: mpl::true_
{
typedef file_stream_device< FormatTag > device_type;
};
} // namespace detail
} // namespace gil
} // namespace boost
#endif // BOOST_GIL_EXTENSION_IO_DETAIL_TIFF_IO_DEVICE_HPP