//
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// Copyright 2007-2012 Christian Henning, Lubomir Bourdev
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//
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// Distributed under the Boost Software License, Version 1.0
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// 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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//
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#ifndef BOOST_GIL_EXTENSION_IO_TIFF_DETAIL_WRITE_HPP
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#define BOOST_GIL_EXTENSION_IO_TIFF_DETAIL_WRITE_HPP
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#include <boost/gil/extension/io/tiff/tags.hpp>
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#include <boost/gil/extension/io/tiff/detail/writer_backend.hpp>
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#include <boost/gil/extension/io/tiff/detail/device.hpp>
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#include <boost/gil/premultiply.hpp>
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#include <boost/gil/io/base.hpp>
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#include <boost/gil/io/device.hpp>
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#include <boost/gil/io/dynamic_io_new.hpp>
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#include <algorithm>
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#include <string>
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#include <type_traits>
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#include <vector>
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extern "C" {
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#include "tiff.h"
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#include "tiffio.h"
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}
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namespace boost { namespace gil {
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#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
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#pragma warning(push)
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#pragma warning(disable:4512) //assignment operator could not be generated
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#endif
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namespace detail {
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template <typename PixelReference>
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struct my_interleaved_pixel_iterator_type_from_pixel_reference
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{
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private:
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using pixel_t = typename std::remove_reference<PixelReference>::type::value_type;
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public:
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using type = typename iterator_type_from_pixel
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<
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pixel_t,
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false,
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false,
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true
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>::type;
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};
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template< typename Channel
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, typename Layout
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, bool Mutable
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>
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struct my_interleaved_pixel_iterator_type_from_pixel_reference< const bit_aligned_pixel_reference< byte_t
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, Channel
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, Layout
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, Mutable
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>
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>
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: public iterator_type_from_pixel< const bit_aligned_pixel_reference< uint8_t
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, Channel
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, Layout
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, Mutable
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>
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,false
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,false
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,true
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> {};
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struct tiff_write_is_supported
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{
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template< typename View >
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struct apply
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: public is_write_supported< typename get_pixel_type< View >::type
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, tiff_tag
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>
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{};
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};
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} // namespace detail
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///
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/// TIFF Writer
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///
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template < typename Device, typename Log >
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class writer< Device
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, tiff_tag
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, Log
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>
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: public writer_backend< Device
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, tiff_tag
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>
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{
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private:
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using backend_t = writer_backend<Device, tiff_tag>;
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public:
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writer( const Device& io_dev
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, const image_write_info< tiff_tag >& info
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)
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: backend_t( io_dev
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, info
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)
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{}
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template<typename View>
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void apply( const View& view )
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{
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write_view( view );
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}
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private:
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template< typename View >
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void write_view( const View& view )
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{
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using pixel_t = typename View::value_type;
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// get the type of the first channel (heterogeneous pixels might be broken for now!)
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using channel_t = typename channel_traits<typename element_type<pixel_t>::type>::value_type;
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tiff_bits_per_sample::type bits_per_sample = detail::unsigned_integral_num_bits< channel_t >::value;
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tiff_samples_per_pixel::type samples_per_pixel = num_channels< pixel_t >::value;
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this->write_header( view );
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if( this->_info._is_tiled == false )
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{
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write_data( view
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, (view.width() * samples_per_pixel * bits_per_sample + 7) / 8
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, typename is_bit_aligned< pixel_t >::type()
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);
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}
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else
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{
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tiff_tile_width::type tw = this->_info._tile_width;
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tiff_tile_length::type th = this->_info._tile_length;
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if(!this->_io_dev.check_tile_size( tw, th ))
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{
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io_error( "Tile sizes need to be multiples of 16." );
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}
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// tile related tags
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this->_io_dev.template set_property<tiff_tile_width> ( tw );
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this->_io_dev.template set_property<tiff_tile_length>( th );
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write_tiled_data( view
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, tw
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, th
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, typename is_bit_aligned< pixel_t >::type()
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);
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}
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}
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//////////////////////////////
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template<typename View>
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void write_bit_aligned_view_to_dev( const View& view
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, const std::size_t row_size_in_bytes
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, const std::true_type& // has_alpha
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)
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{
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byte_vector_t row( row_size_in_bytes );
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using x_it_t = typename View::x_iterator;
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x_it_t row_it = x_it_t( &(*row.begin()));
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auto pm_view = premultiply_view <typename View:: value_type> (view);
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for( typename View::y_coord_t y = 0; y < pm_view.height(); ++y )
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{
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std::copy( pm_view.row_begin( y )
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, pm_view.row_end( y )
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, row_it
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);
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this->_io_dev.write_scaline( row
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, (uint32) y
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, 0
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);
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// @todo: do optional bit swapping here if you need to...
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}
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}
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template<typename View>
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void write_bit_aligned_view_to_dev( const View& view
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, const std::size_t row_size_in_bytes
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, const std::false_type& // has_alpha
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)
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{
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byte_vector_t row( row_size_in_bytes );
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using x_it_t = typename View::x_iterator;
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x_it_t row_it = x_it_t( &(*row.begin()));
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for( typename View::y_coord_t y = 0; y < view.height(); ++y )
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{
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std::copy( view.row_begin( y )
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, view.row_end( y )
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, row_it
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);
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this->_io_dev.write_scaline( row
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, (uint32) y
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, 0
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);
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// @todo: do optional bit swapping here if you need to...
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}
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}
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/////////////////////////////
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template< typename View >
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void write_data( const View& view
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, std::size_t row_size_in_bytes
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, const std::true_type& // bit_aligned
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)
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{
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using colour_space_t = typename color_space_type<typename View::value_type>::type;
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using has_alpha_t = mp11::mp_contains<colour_space_t, alpha_t>;
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write_bit_aligned_view_to_dev(view, row_size_in_bytes, has_alpha_t());
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}
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template< typename View>
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void write_tiled_data( const View& view
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, tiff_tile_width::type tw
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, tiff_tile_length::type th
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, const std::true_type& // bit_aligned
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)
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{
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byte_vector_t row( this->_io_dev.get_tile_size() );
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using x_it_t = typename View::x_iterator;
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x_it_t row_it = x_it_t( &(*row.begin()));
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internal_write_tiled_data(view, tw, th, row, row_it);
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}
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template< typename View >
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void write_data( const View& view
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, std::size_t
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, const std::false_type& // bit_aligned
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)
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{
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std::vector< pixel< typename channel_type< View >::type
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, layout<typename color_space_type< View >::type >
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>
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> row( view.size() );
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byte_t* row_addr = reinterpret_cast< byte_t* >( &row.front() );
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// @todo: is there an overhead to doing this when there's no
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// alpha to premultiply by? I'd hope it's optimised out.
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auto pm_view = premultiply_view <typename View:: value_type> (view);
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for( typename View::y_coord_t y = 0; y < pm_view.height(); ++y )
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{
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std::copy( pm_view.row_begin( y )
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, pm_view.row_end( y )
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, row.begin()
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);
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this->_io_dev.write_scaline( row_addr
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, (uint32) y
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, 0
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);
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// @todo: do optional bit swapping here if you need to...
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}
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}
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template< typename View >
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void write_tiled_data( const View& view
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, tiff_tile_width::type tw
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, tiff_tile_length::type th
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, const std::false_type& // bit_aligned
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)
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{
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byte_vector_t row( this->_io_dev.get_tile_size() );
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using x_iterator = typename detail::my_interleaved_pixel_iterator_type_from_pixel_reference<typename View::reference>::type;
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x_iterator row_it = x_iterator( &(*row.begin()));
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internal_write_tiled_data(view, tw, th, row, row_it);
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}
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//////////////////////////////
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template< typename View
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, typename IteratorType
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>
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void write_tiled_view_to_dev( const View& view
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, IteratorType it
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, const std::true_type& // has_alpha
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)
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{
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auto pm_view = premultiply_view <typename View:: value_type>( view );
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std::copy( pm_view.begin()
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, pm_view.end()
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, it
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);
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}
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template< typename View
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, typename IteratorType
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>
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void write_tiled_view_to_dev( const View& view
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, IteratorType it
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, const std::false_type& // has_alpha
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)
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{
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std::copy( view.begin()
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, view.end()
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, it
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);
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}
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/////////////////////////////
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template< typename View,
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typename IteratorType
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>
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void internal_write_tiled_data( const View& view
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, tiff_tile_width::type tw
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, tiff_tile_length::type th
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, byte_vector_t& row
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, IteratorType it
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)
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{
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std::ptrdiff_t i = 0, j = 0;
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View tile_subimage_view;
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while( i < view.height() )
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{
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while( j < view.width() )
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{
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if( j + tw < view.width() && i + th < view.height() )
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{
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// a tile is fully included in the image: just copy values
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tile_subimage_view = subimage_view( view
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, static_cast< int >( j )
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, static_cast< int >( i )
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, static_cast< int >( tw )
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, static_cast< int >( th )
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);
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using colour_space_t = typename color_space_type<typename View::value_type>::type;
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using has_alpha_t = mp11::mp_contains<colour_space_t, alpha_t>;
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write_tiled_view_to_dev(tile_subimage_view, it, has_alpha_t());
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}
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else
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{
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std::ptrdiff_t width = view.width();
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std::ptrdiff_t height = view.height();
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std::ptrdiff_t current_tile_width = ( j + tw < width ) ? tw : width - j;
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std::ptrdiff_t current_tile_length = ( i + th < height) ? th : height - i;
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tile_subimage_view = subimage_view( view
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, static_cast< int >( j )
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, static_cast< int >( i )
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, static_cast< int >( current_tile_width )
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, static_cast< int >( current_tile_length )
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);
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for( typename View::y_coord_t y = 0; y < tile_subimage_view.height(); ++y )
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{
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std::copy( tile_subimage_view.row_begin( y )
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, tile_subimage_view.row_end( y )
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, it
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);
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std::advance(it, tw);
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}
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it = IteratorType( &(*row.begin()));
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}
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this->_io_dev.write_tile( row
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, static_cast< uint32 >( j )
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, static_cast< uint32 >( i )
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, 0
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, 0
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);
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j += tw;
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}
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j = 0;
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i += th;
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}
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// @todo: do optional bit swapping here if you need to...
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}
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};
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///
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/// TIFF Dynamic Image Writer
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///
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template< typename Device >
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class dynamic_image_writer< Device
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, tiff_tag
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>
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: public writer< Device
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, tiff_tag
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>
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{
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using parent_t = writer<Device, tiff_tag>;
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public:
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dynamic_image_writer( const Device& io_dev
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, const image_write_info< tiff_tag >& info
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)
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: parent_t( io_dev
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, info
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)
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{}
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template< typename ...Views >
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void apply( const any_image_view< Views... >& views )
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{
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detail::dynamic_io_fnobj< detail::tiff_write_is_supported
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, parent_t
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> op( this );
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apply_operation( views, op );
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}
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};
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#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
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#pragma warning(pop)
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#endif
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} // namespace gil
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} // namespace boost
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#endif
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