89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
/// OpenGL Image (gli.g-truc.net)
|
|
///
|
|
/// Copyright (c) 2008 - 2015 G-Truc Creation (www.g-truc.net)
|
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
/// of this software and associated documentation files (the "Software"), to deal
|
|
/// in the Software without restriction, including without limitation the rights
|
|
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
/// copies of the Software, and to permit persons to whom the Software is
|
|
/// furnished to do so, subject to the following conditions:
|
|
///
|
|
/// The above copyright notice and this permission notice shall be included in
|
|
/// all copies or substantial portions of the Software.
|
|
///
|
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
/// THE SOFTWARE.
|
|
///
|
|
/// @ref core
|
|
/// @file gli/core/flip.inl
|
|
/// @date 2014-01-17 / 2014-01-17
|
|
/// @author Christophe Riccio
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
namespace gli{
|
|
namespace detail
|
|
{
|
|
inline void flip(image ImageDst, image ImageSrc, std::size_t BlockSize)
|
|
{
|
|
std::size_t const LineSize = BlockSize * ImageDst.dimensions().x;
|
|
|
|
for(std::size_t y = 0; y < ImageDst.dimensions().y; ++y)
|
|
{
|
|
std::size_t OffsetDst = LineSize * y;
|
|
std::size_t OffsetSrc = ImageSrc.size() - (LineSize * (y + 1));
|
|
|
|
memcpy(
|
|
ImageDst.data<glm::byte>() + OffsetDst,
|
|
ImageSrc.data<glm::byte>() + OffsetSrc,
|
|
LineSize);
|
|
}
|
|
}
|
|
|
|
}//namespace detail
|
|
|
|
/*
|
|
template <>
|
|
inline image flip(image const & Image)
|
|
{
|
|
|
|
}
|
|
*/
|
|
|
|
template <>
|
|
inline texture2D flip(texture2D const & Texture)
|
|
{
|
|
assert(!gli::is_compressed(Texture.format()));
|
|
|
|
texture2D Flip(Texture.format(), Texture.dimensions(), Texture.levels());
|
|
|
|
gli::size_t const BlockSize = block_size(Texture.format());
|
|
|
|
for(std::size_t Level = 0; Level < Flip.levels(); ++Level)
|
|
detail::flip(Flip[Level], Texture[Level], BlockSize);
|
|
|
|
return Flip;
|
|
}
|
|
|
|
template <>
|
|
inline texture2DArray flip(texture2DArray const & Texture)
|
|
{
|
|
assert(!gli::is_compressed(Texture.format()));
|
|
|
|
texture2DArray Flip(Texture.format(), Texture.dimensions(), Texture.layers(), Texture.levels());
|
|
|
|
gli::size_t const BlockSize = block_size(Texture.format());
|
|
|
|
for(std::size_t Layer = 0; Layer < Flip.layers(); ++Layer)
|
|
for(std::size_t Level = 0; Level < Flip.levels(); ++Level)
|
|
detail::flip(Flip[Layer][Level], Texture[Layer][Level], BlockSize);
|
|
|
|
return Flip;
|
|
}
|
|
|
|
}//namespace gli
|