/* | |
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. | |
*/ | |
/*************************************************************************************************/ | |
#ifndef GIL_DYNAMICIMAGE_IMAGE_VIEWS_HPP | |
#define GIL_DYNAMICIMAGE_IMAGE_VIEWS_HPP | |
/*! | |
/// \file | |
/// \brief Methods for constructing any image views from other any image views | |
/// \author Lubomir Bourdev and Hailin Jin \n | |
/// Adobe Systems Incorporated | |
/// \date 2005-2007 \n Last updated on January 31, 2007 | |
/// Extends image view factory to runtime type-specified views (any_image_view) | |
*/ | |
#include "any_image_view.hpp" | |
#include "../../image_view_factory.hpp" | |
namespace boost { namespace gil { | |
namespace detail { | |
template <typename Result> struct flipped_up_down_view_fn { | |
typedef Result result_type; | |
template <typename View> result_type operator()(const View& src) const { return result_type(flipped_up_down_view(src)); } | |
}; | |
template <typename Result> struct flipped_left_right_view_fn { | |
typedef Result result_type; | |
template <typename View> result_type operator()(const View& src) const { return result_type(flipped_left_right_view(src)); } | |
}; | |
template <typename Result> struct rotated90cw_view_fn { | |
typedef Result result_type; | |
template <typename View> result_type operator()(const View& src) const { return result_type(rotated90cw_view(src)); } | |
}; | |
template <typename Result> struct rotated90ccw_view_fn { | |
typedef Result result_type; | |
template <typename View> result_type operator()(const View& src) const { return result_type(rotated90ccw_view(src)); } | |
}; | |
template <typename Result> struct tranposed_view_fn { | |
typedef Result result_type; | |
template <typename View> result_type operator()(const View& src) const { return result_type(tranposed_view(src)); } | |
}; | |
template <typename Result> struct rotated180_view_fn { | |
typedef Result result_type; | |
template <typename View> result_type operator()(const View& src) const { return result_type(rotated180_view(src)); } | |
}; | |
template <typename Result> struct subimage_view_fn { | |
typedef Result result_type; | |
subimage_view_fn(const point2<std::ptrdiff_t>& topleft, const point2<std::ptrdiff_t>& dimensions) : _topleft(topleft), _size2(dimensions) {} | |
point2<std::ptrdiff_t> _topleft,_size2; | |
template <typename View> result_type operator()(const View& src) const { return result_type(subimage_view(src,_topleft,_size2)); } | |
}; | |
template <typename Result> struct subsampled_view_fn { | |
typedef Result result_type; | |
subsampled_view_fn(const point2<std::ptrdiff_t>& step) : _step(step) {} | |
point2<std::ptrdiff_t> _step; | |
template <typename View> result_type operator()(const View& src) const { return result_type(subsampled_view(src,_step)); } | |
}; | |
template <typename Result> struct nth_channel_view_fn { | |
typedef Result result_type; | |
nth_channel_view_fn(int n) : _n(n) {} | |
int _n; | |
template <typename View> result_type operator()(const View& src) const { return result_type(nth_channel_view(src,_n)); } | |
}; | |
template <typename DstP, typename Result, typename CC = default_color_converter> struct color_converted_view_fn { | |
typedef Result result_type; | |
color_converted_view_fn(CC cc = CC()): _cc(cc) {} | |
template <typename View> result_type operator()(const View& src) const { return result_type(color_converted_view<DstP>(src, _cc)); } | |
private: | |
CC _cc; | |
}; | |
} // namespace detail | |
/// \ingroup ImageViewTransformationsFlipUD | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_y_step_type<any_image_view<ViewTypes> >::type flipped_up_down_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::flipped_up_down_view_fn<typename dynamic_y_step_type<any_image_view<ViewTypes> >::type>()); | |
} | |
/// \ingroup ImageViewTransformationsFlipLR | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_x_step_type<any_image_view<ViewTypes> >::type flipped_left_right_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::flipped_left_right_view_fn<typename dynamic_x_step_type<any_image_view<ViewTypes> >::type>()); | |
} | |
/// \ingroup ImageViewTransformationsTransposed | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type transposed_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::tranposed_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>()); | |
} | |
/// \ingroup ImageViewTransformations90CW | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type rotated90cw_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::rotated90cw_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>()); | |
} | |
/// \ingroup ImageViewTransformations90CCW | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type rotated90ccw_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::rotated90ccw_view_fn<typename dynamic_xy_step_transposed_type<any_image_view<ViewTypes> >::type>()); | |
} | |
/// \ingroup ImageViewTransformations180 | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type rotated180_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::rotated180_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>()); | |
} | |
/// \ingroup ImageViewTransformationsSubimage | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
any_image_view<ViewTypes> subimage_view(const any_image_view<ViewTypes>& src, const point2<std::ptrdiff_t>& topleft, const point2<std::ptrdiff_t>& dimensions) { | |
return apply_operation(src,detail::subimage_view_fn<any_image_view<ViewTypes> >(topleft,dimensions)); | |
} | |
/// \ingroup ImageViewTransformationsSubimage | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
any_image_view<ViewTypes> subimage_view(const any_image_view<ViewTypes>& src, int xMin, int yMin, int width, int height) { | |
return apply_operation(src,detail::subimage_view_fn<any_image_view<ViewTypes> >(point2<std::ptrdiff_t>(xMin,yMin),point2<std::ptrdiff_t>(width,height))); | |
} | |
/// \ingroup ImageViewTransformationsSubsampled | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type subsampled_view(const any_image_view<ViewTypes>& src, const point2<std::ptrdiff_t>& step) { | |
return apply_operation(src,detail::subsampled_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>(step)); | |
} | |
/// \ingroup ImageViewTransformationsSubsampled | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type subsampled_view(const any_image_view<ViewTypes>& src, int xStep, int yStep) { | |
return apply_operation(src,detail::subsampled_view_fn<typename dynamic_xy_step_type<any_image_view<ViewTypes> >::type>(point2<std::ptrdiff_t>(xStep,yStep))); | |
} | |
namespace detail { | |
template <typename View> struct get_nthchannel_type { typedef typename nth_channel_view_type<View>::type type; }; | |
template <typename Views> struct views_get_nthchannel_type : public mpl::transform<Views, get_nthchannel_type<mpl::_1> > {}; | |
} | |
/// \ingroup ImageViewTransformationsNthChannel | |
/// \brief Given a runtime source image view, returns the type of a runtime image view over a single channel of the source view | |
template <typename ViewTypes> | |
struct nth_channel_view_type<any_image_view<ViewTypes> > { | |
typedef any_image_view<typename detail::views_get_nthchannel_type<ViewTypes>::type> type; | |
}; | |
/// \ingroup ImageViewTransformationsNthChannel | |
template <typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename nth_channel_view_type<any_image_view<ViewTypes> >::type nth_channel_view(const any_image_view<ViewTypes>& src, int n) { | |
return apply_operation(src,detail::nth_channel_view_fn<typename nth_channel_view_type<any_image_view<ViewTypes> >::type>(n)); | |
} | |
namespace detail { | |
template <typename View, typename DstP, typename CC> struct get_ccv_type : public color_converted_view_type<View, DstP, CC> {}; | |
template <typename Views, typename DstP, typename CC> struct views_get_ccv_type : public mpl::transform<Views, get_ccv_type<mpl::_1,DstP,CC> > {}; | |
} | |
/// \ingroup ImageViewTransformationsColorConvert | |
/// \brief Returns the type of a runtime-specified view, color-converted to a given pixel type with user specified color converter | |
template <typename ViewTypes, typename DstP, typename CC> | |
struct color_converted_view_type<any_image_view<ViewTypes>,DstP,CC> { | |
typedef any_image_view<typename detail::views_get_ccv_type<ViewTypes, DstP, CC>::type> type; | |
}; | |
/// \ingroup ImageViewTransformationsColorConvert | |
/// \brief overload of generic color_converted_view with user defined color-converter | |
template <typename DstP, typename ViewTypes, typename CC> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type color_converted_view(const any_image_view<ViewTypes>& src,CC cc) { | |
return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type >()); | |
} | |
/// \ingroup ImageViewTransformationsColorConvert | |
/// \brief Returns the type of a runtime-specified view, color-converted to a given pixel type with the default coor converter | |
template <typename ViewTypes, typename DstP> | |
struct color_converted_view_type<any_image_view<ViewTypes>,DstP> { | |
typedef any_image_view<typename detail::views_get_ccv_type<ViewTypes, DstP, default_color_converter>::type> type; | |
}; | |
/// \ingroup ImageViewTransformationsColorConvert | |
/// \brief overload of generic color_converted_view with the default color-converter | |
template <typename DstP, typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type color_converted_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type >()); | |
} | |
/// \ingroup ImageViewTransformationsColorConvert | |
/// \brief overload of generic color_converted_view with user defined color-converter | |
/// These are workarounds for GCC 3.4, which thinks color_converted_view is ambiguous with the same method for templated views (in gil/image_view_factory.hpp) | |
template <typename DstP, typename ViewTypes, typename CC> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type any_color_converted_view(const any_image_view<ViewTypes>& src,CC cc) { | |
return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP, CC>::type >()); | |
} | |
/// \ingroup ImageViewTransformationsColorConvert | |
/// \brief overload of generic color_converted_view with the default color-converter | |
/// These are workarounds for GCC 3.4, which thinks color_converted_view is ambiguous with the same method for templated views (in gil/image_view_factory.hpp) | |
template <typename DstP, typename ViewTypes> inline // Models MPL Random Access Container of models of ImageViewConcept | |
typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type any_color_converted_view(const any_image_view<ViewTypes>& src) { | |
return apply_operation(src,detail::color_converted_view_fn<DstP,typename color_converted_view_type<any_image_view<ViewTypes>, DstP>::type >()); | |
} | |
/// \} | |
} } // namespace boost::gil | |
#endif |