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- //
- // Copyright 2005-2007 Adobe Systems Incorporated
- //
- // 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
- //
- #ifdef WIN32
- #define _CRT_SECURE_NO_DEPRECATE 1
- #pragma warning(disable : 4244) //
- #pragma warning(disable : 4996) // MSFT declared it deprecated
- #endif
- // Example file to demonstrate how to create a model of a pixel iterator
- // FIXME: Review and remove if possible: gcc doesn't compile unless we forward-declare at_c before we include gil...
- namespace boost { namespace gil {
- template <typename ChannelReference, typename Layout> struct interleaved_ref;
- template <typename ColorBase> struct element_reference_type;
- template <int K, typename ChannelReference, typename Layout>
- typename element_reference_type<interleaved_ref<ChannelReference,Layout>>::type
- at_c(const interleaved_ref<ChannelReference,Layout>& p);
- } }
- #include <boost/gil.hpp>
- #include <boost/gil/extension/io/jpeg.hpp>
- #include <iostream>
- #include "interleaved_ptr.hpp"
- int main(int argc, char* argv[])
- {
- using namespace boost::gil;
- using rgb8_interleaved_ptr = interleaved_ptr<unsigned char*, rgb_layout_t>;
- using rgb8c_interleaved_ptr = interleaved_ptr<unsigned char const*, rgb_layout_t>;
- boost::function_requires<MutablePixelIteratorConcept<rgb8_interleaved_ptr>>();
- boost::function_requires<PixelIteratorConcept<rgb8c_interleaved_ptr>>();
- boost::function_requires<MemoryBasedIteratorConcept<memory_based_step_iterator<rgb8_interleaved_ptr>> >();
- boost::function_requires<MutablePixelConcept<rgb8_interleaved_ptr::value_type>>();
- boost::function_requires<PixelConcept<rgb8c_interleaved_ptr::value_type>>();
- using rgb8_interleaved_view_t = type_from_x_iterator<rgb8_interleaved_ptr >::view_t;
- using rgb8c_interleaved_view_t = type_from_x_iterator<rgb8c_interleaved_ptr>::view_t;
- boost::function_requires<MutableImageViewConcept<rgb8_interleaved_view_t>>();
- boost::function_requires<ImageViewConcept<rgb8c_interleaved_view_t>>();
- rgb8_image_t img;
- read_image("test.jpg", img, jpeg_tag{});
- // Get a raw pointer to the RGB buffer
- unsigned char* raw_ptr=&view(img)[0][0];
- // Construct a view from it, without casting it to rgb8_pixel_t*
- rgb8_interleaved_view_t src_view=interleaved_view(img.width(),img.height(),rgb8_interleaved_ptr(raw_ptr),
- view(img).pixels().row_size());
- // Apply view transformations and algorithms on it
- write_view("out-interleaved_ptr.jpg",nth_channel_view(flipped_up_down_view(src_view),1), jpeg_tag{});
- return 0;
- }
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