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Current File : //usr/include/boost/gil/extension/dynamic_image/algorithm.hpp
//
// 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
//
#ifndef BOOST_GIL_EXTENSION_DYNAMIC_IMAGE_ALGORITHM_HPP
#define BOOST_GIL_EXTENSION_DYNAMIC_IMAGE_ALGORITHM_HPP
#include <boost/gil/extension/dynamic_image/any_image.hpp>
#include <boost/gil/algorithm.hpp>
#include <functional>
////////////////////////////////////////////////////////////////////////////////////////
/// \file
/// \brief Some basic STL-style algorithms when applied to runtime type specified image views
/// \author Lubomir Bourdev and Hailin Jin \n
/// Adobe Systems Incorporated
/// \date 2005-2007 \n Last updated on September 24, 2006
///
////////////////////////////////////////////////////////////////////////////////////////
namespace boost { namespace gil {
namespace detail {
struct equal_pixels_fn : binary_operation_obj<equal_pixels_fn, bool>
{
template <typename V1, typename V2>
BOOST_FORCEINLINE
bool apply_compatible(V1 const& v1, V2 const& v2) const
{
return equal_pixels(v1, v2);
}
};
} // namespace detail
/// \ingroup ImageViewSTLAlgorithmsEqualPixels
/// \tparam Types Model MPL Random Access Container of models of ImageViewConcept
/// \tparam View Model MutableImageViewConcept
template <typename Types, typename View>
bool equal_pixels(any_image_view<Types> const& src, View const& dst)
{
return apply_operation(
src,
std::bind(detail::equal_pixels_fn(), std::placeholders::_1, dst));
}
/// \ingroup ImageViewSTLAlgorithmsEqualPixels
/// \tparam View Model ImageViewConcept
/// \tparam Types Model MPL Random Access Container of models of MutableImageViewConcept
template <typename View, typename Types>
bool equal_pixels(View const& src, any_image_view<Types> const& dst)
{
return apply_operation(
dst,
std::bind(detail::equal_pixels_fn(), src, std::placeholders::_1));
}
/// \ingroup ImageViewSTLAlgorithmsEqualPixels
/// \tparam Types1 Model MPL Random Access Container of models of ImageViewConcept
/// \tparam Types2 Model MPL Random Access Container of models of MutableImageViewConcept
template <typename Types1, typename Types2>
bool equal_pixels(any_image_view<Types1> const& src, any_image_view<Types2> const& dst)
{
return apply_operation(src, dst, detail::equal_pixels_fn());
}
namespace detail {
struct copy_pixels_fn : public binary_operation_obj<copy_pixels_fn>
{
template <typename View1, typename View2>
BOOST_FORCEINLINE
void apply_compatible(View1 const& src, View2 const& dst) const
{
copy_pixels(src,dst);
}
};
} // namespace detail
/// \ingroup ImageViewSTLAlgorithmsCopyPixels
/// \tparam Types Model MPL Random Access Container of models of ImageViewConcept
/// \tparam View Model MutableImageViewConcept
template <typename Types, typename View>
void copy_pixels(any_image_view<Types> const& src, View const& dst)
{
apply_operation(src, std::bind(detail::copy_pixels_fn(), std::placeholders::_1, dst));
}
/// \ingroup ImageViewSTLAlgorithmsCopyPixels
/// \tparam Types Model MPL Random Access Container of models of MutableImageViewConcept
/// \tparam View Model ImageViewConcept
template <typename Types, typename View>
void copy_pixels(View const& src, any_image_view<Types> const& dst)
{
apply_operation(dst, std::bind(detail::copy_pixels_fn(), src, std::placeholders::_1));
}
/// \ingroup ImageViewSTLAlgorithmsCopyPixels
/// \tparam Types1 Model MPL Random Access Container of models of ImageViewConcept
/// \tparam Types2 Model MPL Random Access Container of models of MutableImageViewConcept
template <typename Types1, typename Types2>
void copy_pixels(any_image_view<Types1> const& src, any_image_view<Types2> const& dst)
{
apply_operation(src, dst, detail::copy_pixels_fn());
}
//forward declaration for default_color_converter (see full definition in color_convert.hpp)
struct default_color_converter;
/// \ingroup ImageViewSTLAlgorithmsCopyAndConvertPixels
/// \tparam Types Model MPL Random Access Container of models of ImageViewConcept
/// \tparam View Model MutableImageViewConcept
/// \tparam CC Model ColorConverterConcept
template <typename Types, typename View, typename CC>
void copy_and_convert_pixels(any_image_view<Types> const& src, View const& dst, CC cc)
{
using cc_fn = detail::copy_and_convert_pixels_fn<CC>;
apply_operation(src, std::bind(cc_fn{cc}, std::placeholders::_1, dst));
}
/// \ingroup ImageViewSTLAlgorithmsCopyAndConvertPixels
/// \tparam Types Model MPL Random Access Container of models of ImageViewConcept
/// \tparam View Model MutableImageViewConcept
template <typename Types, typename View>
void copy_and_convert_pixels(any_image_view<Types> const& src, View const& dst)
{
using cc_fn = detail::copy_and_convert_pixels_fn<default_color_converter>;
apply_operation(src, std::bind(cc_fn{}, std::placeholders::_1, dst));
}
/// \ingroup ImageViewSTLAlgorithmsCopyAndConvertPixels
/// \tparam View Model ImageViewConcept
/// \tparam Types Model MPL Random Access Container of models of MutableImageViewConcept
/// \tparam CC Model ColorConverterConcept
template <typename View, typename Types, typename CC>
void copy_and_convert_pixels(View const& src, any_image_view<Types> const& dst, CC cc)
{
using cc_fn = detail::copy_and_convert_pixels_fn<CC>;
apply_operation(dst, std::bind(cc_fn{cc}, src, std::placeholders::_1));
}
/// \ingroup ImageViewSTLAlgorithmsCopyAndConvertPixels
/// \tparam View Model ImageViewConcept
/// \tparam Type Model MPL Random Access Container of models of MutableImageViewConcept
template <typename View, typename Types>
void copy_and_convert_pixels(View const& src, any_image_view<Types> const& dst)
{
using cc_fn = detail::copy_and_convert_pixels_fn<default_color_converter>;
apply_operation(dst, std::bind(cc_fn{}, src, std::placeholders::_1));
}
/// \ingroup ImageViewSTLAlgorithmsCopyAndConvertPixels
/// \tparam Types1 Model MPL Random Access Container of models of ImageViewConcept
/// \tparam Types2 Model MPL Random Access Container of models of MutableImageViewConcept
/// \tparam CC Model ColorConverterConcept
template <typename Types1, typename Types2, typename CC>
void copy_and_convert_pixels(
any_image_view<Types1> const& src,
any_image_view<Types2> const& dst, CC cc)
{
apply_operation(src, dst, detail::copy_and_convert_pixels_fn<CC>(cc));
}
/// \ingroup ImageViewSTLAlgorithmsCopyAndConvertPixels
/// \tparam Types1 Model MPL Random Access Container of models of ImageViewConcept
/// \tparam Types2 Model MPL Random Access Container of models of MutableImageViewConcept
template <typename Types1, typename Types2>
void copy_and_convert_pixels(
any_image_view<Types1> const& src,
any_image_view<Types2> const& dst)
{
apply_operation(src, dst,
detail::copy_and_convert_pixels_fn<default_color_converter>());
}
namespace detail {
template <bool IsCompatible>
struct fill_pixels_fn1
{
template <typename V, typename Value>
static void apply(V const &src, Value const &val) { fill_pixels(src, val); }
};
// copy_pixels invoked on incompatible images
template <>
struct fill_pixels_fn1<false>
{
template <typename V, typename Value>
static void apply(V const &, Value const &) { throw std::bad_cast();}
};
template <typename Value>
struct fill_pixels_fn
{
fill_pixels_fn(Value const& val) : val_(val) {}
using result_type = void;
template <typename V>
result_type operator()(V const& view) const
{
fill_pixels_fn1
<
pixels_are_compatible
<
typename V::value_type,
Value
>::value
>::apply(view, val_);
}
Value val_;
};
} // namespace detail
/// \ingroup ImageViewSTLAlgorithmsFillPixels
/// \brief fill_pixels for any image view. The pixel to fill with must be compatible with the current view
/// \tparam Types Model MPL Random Access Container of models of MutableImageViewConcept
template <typename Types, typename Value>
void fill_pixels(any_image_view<Types> const& view, Value const& val)
{
apply_operation(view, detail::fill_pixels_fn<Value>(val));
}
}} // namespace boost::gil
#endif
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