demotool/glm/test/external/gli/core/comparison.inl
2017-09-30 10:26:30 +02:00

100 lines
2.8 KiB
C++

#include <cstring>
namespace gli{
namespace detail
{
inline bool equalData(texture const & TextureA, texture const & TextureB)
{
GLI_ASSERT(TextureA.size() == TextureB.size());
if(TextureA.data() == TextureB.data())
return true;
for(texture::size_type LayerIndex = 0, LayerCount = TextureA.layers(); LayerIndex < LayerCount; ++LayerIndex)
for(texture::size_type FaceIndex = 0, FaceCount = TextureA.faces(); FaceIndex < FaceCount; ++FaceIndex)
for(texture::size_type LevelIndex = 0, LevelCount = TextureA.levels(); LevelIndex < LevelCount; ++LevelIndex)
{
void const* PointerA = TextureA.data(LayerIndex, FaceIndex, LevelIndex);
void const* PointerB = TextureB.data(LayerIndex, FaceIndex, LevelIndex);
if(std::memcmp(PointerA, PointerB, TextureA.size(LevelIndex)) != 0)
return false;
}
return true;
}
}//namespace detail
inline bool operator==(image const & ImageA, image const & ImageB)
{
if(!glm::all(glm::equal(ImageA.extent(), ImageB.extent())))
return false;
if(ImageA.size() != ImageB.size())
return false;
return std::memcmp(ImageA.data(), ImageB.data(), ImageA.size()) == 0;
}
inline bool operator!=(image const & ImageA, image const & ImageB)
{
if(!glm::all(glm::equal(ImageA.extent(), ImageB.extent())))
return true;
if(ImageA.size() != ImageB.size())
return true;
return std::memcmp(ImageA.data(), ImageB.data(), ImageA.size()) != 0;
}
inline bool equal(texture const & TextureA, texture const & TextureB)
{
if(TextureA.empty() && TextureB.empty())
return true;
if(TextureA.empty() != TextureB.empty())
return false;
if(TextureA.target() != TextureB.target())
return false;
if(TextureA.layers() != TextureB.layers())
return false;
if(TextureA.faces() != TextureB.faces())
return false;
if(TextureA.levels() != TextureB.levels())
return false;
if(TextureA.format() != TextureB.format())
return false;
if(TextureA.size() != TextureB.size())
return false;
return detail::equalData(TextureA, TextureB);
}
inline bool notEqual(texture const & TextureA, texture const & TextureB)
{
if(TextureA.empty() && TextureB.empty())
return false;
if(TextureA.empty() != TextureB.empty())
return true;
if(TextureA.target() != TextureB.target())
return true;
if(TextureA.layers() != TextureB.layers())
return true;
if(TextureA.faces() != TextureB.faces())
return true;
if(TextureA.levels() != TextureB.levels())
return true;
if(TextureA.format() != TextureB.format())
return true;
if(TextureA.size() != TextureB.size())
return true;
return !detail::equalData(TextureA, TextureB);
}
inline bool operator==(texture const & A, texture const & B)
{
return gli::equal(A, B);
}
inline bool operator!=(texture const & A, texture const & B)
{
return gli::notEqual(A, B);
}
}//namespace gli