mirror of https://gitee.com/bigwinds/arangodb
75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
/*
|
|
Copyright 2005-2007 Adobe Systems Incorporated
|
|
|
|
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).
|
|
|
|
See http://opensource.adobe.com/gil for most recent version including documentation.
|
|
*/
|
|
|
|
/*************************************************************************************************/
|
|
|
|
/// \file
|
|
/// \brief Example file to demonstrate how to create a model of a pixel iterator
|
|
/// \author Lubomir Bourdev and Hailin Jin
|
|
/// \date February 27, 2007
|
|
|
|
#ifdef WIN32
|
|
#define _CRT_SECURE_NO_DEPRECATE 1
|
|
#pragma warning(disable : 4244) //
|
|
#pragma warning(disable : 4996) // MSFT declared it deprecated
|
|
#endif
|
|
|
|
// 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 <iostream>
|
|
#include <boost/gil/extension/io/jpeg_dynamic_io.hpp>
|
|
#include "interleaved_ptr.hpp"
|
|
|
|
int main(int argc, unsigned char* argv[])
|
|
{
|
|
using namespace boost::gil;
|
|
|
|
typedef interleaved_ptr<unsigned char*, rgb_layout_t> rgb8_interleaved_ptr;
|
|
typedef interleaved_ptr<const unsigned char*, rgb_layout_t> rgb8c_interleaved_ptr;
|
|
|
|
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> >();
|
|
|
|
typedef type_from_x_iterator<rgb8_interleaved_ptr >::view_t rgb8_interleaved_view_t;
|
|
typedef type_from_x_iterator<rgb8c_interleaved_ptr>::view_t rgb8c_interleaved_view_t;
|
|
|
|
boost::function_requires<MutableImageViewConcept<rgb8_interleaved_view_t> >();
|
|
boost::function_requires<ImageViewConcept<rgb8c_interleaved_view_t> >();
|
|
|
|
rgb8_image_t img;
|
|
jpeg_read_image("test.jpg", img);
|
|
|
|
// 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
|
|
jpeg_write_view("out-interleaved_ptr.jpg",nth_channel_view(flipped_up_down_view(src_view),1));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|