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