534 lines
20 KiB
C++
534 lines
20 KiB
C++
#include "../sampler1d.hpp"
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#include "../sampler1d_array.hpp"
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#include "../sampler2d.hpp"
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#include "../sampler2d_array.hpp"
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#include "../sampler3d.hpp"
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#include "../sampler_cube.hpp"
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#include "../sampler_cube_array.hpp"
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namespace gli
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{
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template <typename val_type>
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struct binary_func
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{
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typedef vec<4, val_type>(*type)(vec<4, val_type> const& A, vec<4, val_type> const& B);
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};
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namespace detail
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{
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inline bool are_compatible(texture const& A, texture const& B)
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{
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return all(equal(A.extent(), B.extent())) && A.levels() == B.levels() && A.faces() == B.faces() && A.layers() == B.layers();
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}
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template <typename val_type>
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struct compute_sampler_reduce_1d
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{
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typedef typename binary_func<val_type>::type func_type;
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typedef texture1d::size_type size_type;
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typedef texture1d::extent_type extent_type;
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static vec<4, val_type> call(texture1d const& A, texture1d const& B, binary_func<val_type> TexelFunc, binary_func<val_type> ReduceFunc)
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{
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GLI_ASSERT(are_compatible(A, B));
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sampler1d<val_type> const SamplerA(A, gli::WRAP_CLAMP_TO_EDGE), SamplerB(B, gli::WRAP_CLAMP_TO_EDGE);
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extent_type TexelIndex(0);
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vec<4, val_type> Result(TexelFunc(SamplerA.template fetch(TexelIndex, 0), SamplerB.template fetch(TexelIndex, 0)));
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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SamplerA.template fetch(TexelIndex, LevelIndex),
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SamplerB.template fetch(TexelIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename val_type>
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struct compute_sampler_reduce_1d_array
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{
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typedef typename binary_func<val_type>::type func_type;
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typedef texture1d_array::size_type size_type;
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typedef texture1d_array::extent_type extent_type;
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static vec<4, val_type> call(texture1d_array const& A, texture1d_array const& B, binary_func<val_type> TexelFunc, binary_func<val_type> ReduceFunc)
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{
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GLI_ASSERT(are_compatible(A, B));
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sampler1d_array<val_type> const SamplerA(A, gli::WRAP_CLAMP_TO_EDGE), SamplerB(B, gli::WRAP_CLAMP_TO_EDGE);
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extent_type TexelIndex(0);
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vec<4, val_type> Result(TexelFunc(SamplerA.template fetch(TexelIndex, 0, 0), SamplerB.template fetch(TexelIndex, 0, 0)));
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for(size_type LayerIndex = 0, LayerCount = A.layers(); LayerIndex < LayerCount; ++LayerIndex)
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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SamplerA.template fetch(TexelIndex, LayerIndex, LevelIndex),
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SamplerB.template fetch(TexelIndex, LayerIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename val_type>
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struct compute_sampler_reduce_2d
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{
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typedef typename binary_func<val_type>::type func_type;
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typedef texture2d::size_type size_type;
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typedef texture2d::extent_type extent_type;
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static vec<4, val_type> call(texture2d const& A, texture2d const& B, binary_func<val_type> TexelFunc, binary_func<val_type> ReduceFunc)
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{
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GLI_ASSERT(are_compatible(A, B));
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sampler2d<val_type> const SamplerA(A, gli::WRAP_CLAMP_TO_EDGE), SamplerB(B, gli::WRAP_CLAMP_TO_EDGE);
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extent_type TexelIndex(0);
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vec<4, val_type> Result(TexelFunc(SamplerA.template fetch(TexelIndex, 0), SamplerB.template fetch(TexelIndex, 0)));
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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SamplerA.template fetch(TexelIndex, LevelIndex),
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SamplerB.template fetch(TexelIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename val_type>
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struct compute_sampler_reduce_2d_array
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{
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typedef typename binary_func<val_type>::type func_type;
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typedef texture2d_array::size_type size_type;
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typedef texture2d_array::extent_type extent_type;
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static vec<4, val_type> call(texture2d_array const& A, texture2d_array const& B, binary_func<val_type> TexelFunc, binary_func<val_type> ReduceFunc)
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{
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GLI_ASSERT(are_compatible(A, B));
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sampler2d_array<val_type> const SamplerA(A, gli::WRAP_CLAMP_TO_EDGE), SamplerB(B, gli::WRAP_CLAMP_TO_EDGE);
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extent_type TexelIndex(0);
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vec<4, val_type> Result(TexelFunc(SamplerA.template fetch(TexelIndex, 0, 0), SamplerB.template fetch(TexelIndex, 0, 0)));
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for(size_type LayerIndex = 0, LayerCount = A.layers(); LayerIndex < LayerCount; ++LayerIndex)
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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SamplerA.template fetch(TexelIndex, LayerIndex, LevelIndex),
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SamplerB.template fetch(TexelIndex, LayerIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename val_type>
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struct compute_sampler_reduce_3d
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{
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typedef typename binary_func<val_type>::type func_type;
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typedef texture3d::size_type size_type;
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typedef texture3d::extent_type extent_type;
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static vec<4, val_type> call(texture3d const& A, texture3d const& B, binary_func<val_type> TexelFunc, binary_func<val_type> ReduceFunc)
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{
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GLI_ASSERT(are_compatible(A, B));
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sampler3d<val_type> const SamplerA(A, gli::WRAP_CLAMP_TO_EDGE), SamplerB(B, gli::WRAP_CLAMP_TO_EDGE);
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extent_type TexelIndex(0);
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vec<4, val_type> Result(TexelFunc(SamplerA.template fetch(TexelIndex, 0), SamplerB.template fetch(TexelIndex, 0)));
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.z = 0; TexelIndex.z < TexelCount.z; ++TexelIndex.z)
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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SamplerA.template fetch(TexelIndex, LevelIndex),
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SamplerB.template fetch(TexelIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename val_type>
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struct compute_sampler_reduce_cube
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{
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typedef typename binary_func<val_type>::type func_type;
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typedef texture_cube::size_type size_type;
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typedef texture_cube::extent_type extent_type;
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static vec<4, val_type> call(texture_cube const& A, texture_cube const& B, binary_func<val_type> TexelFunc, binary_func<val_type> ReduceFunc)
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{
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GLI_ASSERT(are_compatible(A, B));
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sampler_cube<val_type> const SamplerA(A, gli::WRAP_CLAMP_TO_EDGE), SamplerB(B, gli::WRAP_CLAMP_TO_EDGE);
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extent_type TexelIndex(0);
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vec<4, val_type> Result(TexelFunc(SamplerA.template fetch(TexelIndex, 0, 0), SamplerB.template fetch(TexelIndex, 0, 0)));
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for(size_type FaceIndex = 0, FaceCount = A.faces(); FaceIndex < FaceCount; ++FaceIndex)
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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SamplerA.template fetch(TexelIndex, FaceIndex, LevelIndex),
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SamplerB.template fetch(TexelIndex, FaceIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename val_type>
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struct compute_sampler_reduce_cube_array
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{
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typedef typename binary_func<val_type>::type func_type;
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typedef texture_cube_array::size_type size_type;
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typedef texture_cube_array::extent_type extent_type;
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static vec<4, val_type> call(texture_cube_array const& A, texture_cube_array const& B, binary_func<val_type> TexelFunc, binary_func<val_type> ReduceFunc)
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{
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GLI_ASSERT(are_compatible(A, B));
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sampler_cube_array<val_type> const SamplerA(A, gli::WRAP_CLAMP_TO_EDGE), SamplerB(B, gli::WRAP_CLAMP_TO_EDGE);
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extent_type TexelIndex(0);
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vec<4, val_type> Result(TexelFunc(SamplerA.template fetch(TexelIndex, 0, 0, 0), SamplerB.template fetch(TexelIndex, 0, 0, 0)));
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for(size_type LayerIndex = 0, LayerCount = A.layers(); LayerIndex < LayerCount; ++LayerIndex)
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for(size_type FaceIndex = 0, FaceCount = A.faces(); FaceIndex < FaceCount; ++FaceIndex)
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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SamplerA.template fetch(TexelIndex, LayerIndex, FaceIndex, LevelIndex),
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SamplerB.template fetch(TexelIndex, LayerIndex, FaceIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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}//namespace detail
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namespace detail
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{
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template <typename vec_type>
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struct compute_reduce_1d
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{
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typedef typename reduce_func<vec_type>::type func_type;
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typedef texture1d::size_type size_type;
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typedef texture1d::extent_type extent_type;
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static vec_type call(texture1d const& A, texture1d const& B, func_type TexelFunc, func_type ReduceFunc)
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{
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GLI_ASSERT(all(equal(A.extent(), B.extent())));
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GLI_ASSERT(A.levels() == B.levels());
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GLI_ASSERT(A.size() == B.size());
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extent_type TexelIndex(0);
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vec_type Result(TexelFunc(
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A.template load<vec_type>(TexelIndex, 0),
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B.template load<vec_type>(TexelIndex, 0)));
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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A.template load<vec_type>(TexelIndex, LevelIndex),
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B.template load<vec_type>(TexelIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename vec_type>
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struct compute_reduce_1d_array
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{
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typedef typename reduce_func<vec_type>::type func_type;
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typedef texture1d_array::size_type size_type;
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typedef texture1d_array::extent_type extent_type;
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static vec_type call(texture1d_array const& A, texture1d_array const& B, func_type TexelFunc, func_type ReduceFunc)
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{
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GLI_ASSERT(all(equal(A.extent(), B.extent())));
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GLI_ASSERT(A.levels() == B.levels());
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GLI_ASSERT(A.size() == B.size());
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extent_type TexelIndex(0);
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vec_type Result(TexelFunc(
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A.template load<vec_type>(TexelIndex, 0),
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B.template load<vec_type>(TexelIndex, 0)));
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for(size_type LayerIndex = 0, LayerCount = A.layers(); LayerIndex < LayerCount; ++LayerIndex)
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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A.template load<vec_type>(TexelIndex, LayerIndex, LevelIndex),
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B.template load<vec_type>(TexelIndex, LayerIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename vec_type>
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struct compute_reduce_2d
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{
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typedef typename reduce_func<vec_type>::type func_type;
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typedef texture2d::size_type size_type;
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typedef texture2d::extent_type extent_type;
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static vec_type call(texture2d const& A, texture2d const& B, func_type TexelFunc, func_type ReduceFunc)
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{
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GLI_ASSERT(all(equal(A.extent(), B.extent())));
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GLI_ASSERT(A.levels() == B.levels());
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GLI_ASSERT(A.size() == B.size());
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extent_type TexelIndex(0);
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vec_type Result(TexelFunc(
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A.template load<vec_type>(TexelIndex, 0),
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B.template load<vec_type>(TexelIndex, 0)));
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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A.template load<vec_type>(TexelIndex, LevelIndex),
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B.template load<vec_type>(TexelIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename vec_type>
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struct compute_reduce_2d_array
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{
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typedef typename reduce_func<vec_type>::type func_type;
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typedef texture2d_array::size_type size_type;
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typedef texture2d_array::extent_type extent_type;
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static vec_type call(texture2d_array const& A, texture2d_array const& B, func_type TexelFunc, func_type ReduceFunc)
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{
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GLI_ASSERT(all(equal(A.extent(), B.extent())));
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GLI_ASSERT(A.levels() == B.levels());
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GLI_ASSERT(A.size() == B.size());
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extent_type TexelIndex(0);
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vec_type Result(TexelFunc(
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A.template load<vec_type>(TexelIndex, 0, 0),
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B.template load<vec_type>(TexelIndex, 0, 0)));
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for(size_type LayerIndex = 0, LayerCount = A.layers(); LayerIndex < LayerCount; ++LayerIndex)
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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A.template load<vec_type>(TexelIndex, LayerIndex, LevelIndex),
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B.template load<vec_type>(TexelIndex, LayerIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename vec_type>
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struct compute_reduce_3d
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{
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typedef typename reduce_func<vec_type>::type func_type;
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typedef texture3d::size_type size_type;
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typedef texture3d::extent_type extent_type;
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static vec_type call(texture3d const& A, texture3d const& B, func_type TexelFunc, func_type ReduceFunc)
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{
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GLI_ASSERT(all(equal(A.extent(), B.extent())));
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GLI_ASSERT(A.levels() == B.levels());
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GLI_ASSERT(A.size() == B.size());
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extent_type TexelIndex(0);
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vec_type Result(TexelFunc(
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A.template load<vec_type>(TexelIndex, 0),
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B.template load<vec_type>(TexelIndex, 0)));
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for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
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{
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extent_type const TexelCount(A.extent(LevelIndex));
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for(TexelIndex.z = 0; TexelIndex.z < TexelCount.z; ++TexelIndex.z)
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for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
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for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
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{
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Result = ReduceFunc(Result, TexelFunc(
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A.template load<vec_type>(TexelIndex, LevelIndex),
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B.template load<vec_type>(TexelIndex, LevelIndex)));
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}
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}
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return Result;
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}
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};
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template <typename vec_type>
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struct compute_reduce_cube
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{
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typedef typename reduce_func<vec_type>::type func_type;
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typedef texture_cube::size_type size_type;
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typedef texture_cube::extent_type extent_type;
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static vec_type call(texture_cube const& A, texture_cube const& B, func_type TexelFunc, func_type ReduceFunc)
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{
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GLI_ASSERT(all(equal(A.extent(), B.extent())));
|
|
GLI_ASSERT(A.levels() == B.levels());
|
|
GLI_ASSERT(A.size() == B.size());
|
|
|
|
extent_type TexelIndex(0);
|
|
vec_type Result(TexelFunc(
|
|
A.load<vec_type>(TexelIndex, 0, 0),
|
|
B.load<vec_type>(TexelIndex, 0, 0)));
|
|
|
|
for(size_type FaceIndex = 0, FaceCount = A.faces(); FaceIndex < FaceCount; ++FaceIndex)
|
|
for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
|
|
{
|
|
extent_type const TexelCount(A.extent(LevelIndex));
|
|
for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
|
|
for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
|
|
{
|
|
Result = ReduceFunc(Result, TexelFunc(
|
|
A.template load<vec_type>(TexelIndex, FaceIndex, LevelIndex),
|
|
B.template load<vec_type>(TexelIndex, FaceIndex, LevelIndex)));
|
|
}
|
|
}
|
|
|
|
return Result;
|
|
}
|
|
};
|
|
|
|
template <typename vec_type>
|
|
struct compute_reduce_cube_array
|
|
{
|
|
typedef typename reduce_func<vec_type>::type func_type;
|
|
typedef texture_cube_array::size_type size_type;
|
|
typedef texture_cube_array::extent_type extent_type;
|
|
|
|
static vec_type call(texture_cube_array const& A, texture_cube_array const& B, func_type TexelFunc, func_type ReduceFunc)
|
|
{
|
|
GLI_ASSERT(all(equal(A.extent(), B.extent())));
|
|
GLI_ASSERT(A.levels() == B.levels());
|
|
GLI_ASSERT(A.size() == B.size());
|
|
|
|
extent_type TexelIndex(0);
|
|
vec_type Result(TexelFunc(
|
|
A.load<vec_type>(TexelIndex, 0, 0, 0),
|
|
B.load<vec_type>(TexelIndex, 0, 0 ,0)));
|
|
|
|
for(size_type LayerIndex = 0, LayerCount = A.layers(); LayerIndex < LayerCount; ++LayerIndex)
|
|
for(size_type FaceIndex = 0, FaceCount = A.faces(); FaceIndex < FaceCount; ++FaceIndex)
|
|
for(size_type LevelIndex = 0, LevelCount = A.levels(); LevelIndex < LevelCount; ++LevelIndex)
|
|
{
|
|
extent_type const TexelCount(A.extent(LevelIndex));
|
|
for(TexelIndex.y = 0; TexelIndex.y < TexelCount.y; ++TexelIndex.y)
|
|
for(TexelIndex.x = 0; TexelIndex.x < TexelCount.x; ++TexelIndex.x)
|
|
{
|
|
Result = ReduceFunc(Result, TexelFunc(
|
|
A.template load<vec_type>(TexelIndex, LayerIndex, FaceIndex, LevelIndex),
|
|
B.template load<vec_type>(TexelIndex, LayerIndex, FaceIndex, LevelIndex)));
|
|
}
|
|
}
|
|
|
|
return Result;
|
|
}
|
|
};
|
|
}//namepsace detail
|
|
|
|
template <typename vec_type>
|
|
inline vec_type reduce(texture1d const& In0, texture1d const& In1, typename reduce_func<vec_type>::type TexelFunc, typename reduce_func<vec_type>::type ReduceFunc)
|
|
{
|
|
return detail::compute_reduce_1d<vec_type>::call(In0, In1, TexelFunc, ReduceFunc);
|
|
}
|
|
|
|
template <typename vec_type>
|
|
inline vec_type reduce(texture1d_array const& In0, texture1d_array const& In1, typename reduce_func<vec_type>::type TexelFunc, typename reduce_func<vec_type>::type ReduceFunc)
|
|
{
|
|
return detail::compute_reduce_1d_array<vec_type>::call(In0, In1, TexelFunc, ReduceFunc);
|
|
}
|
|
|
|
template <typename vec_type>
|
|
inline vec_type reduce(texture2d const& In0, texture2d const& In1, typename reduce_func<vec_type>::type TexelFunc, typename reduce_func<vec_type>::type ReduceFunc)
|
|
{
|
|
return detail::compute_reduce_2d<vec_type>::call(In0, In1, TexelFunc, ReduceFunc);
|
|
}
|
|
|
|
template <typename vec_type>
|
|
inline vec_type reduce(texture2d_array const& In0, texture2d_array const& In1, typename reduce_func<vec_type>::type TexelFunc, typename reduce_func<vec_type>::type ReduceFunc)
|
|
{
|
|
return detail::compute_reduce_2d_array<vec_type>::call(In0, In1, TexelFunc, ReduceFunc);
|
|
}
|
|
|
|
template <typename vec_type>
|
|
inline vec_type reduce(texture3d const& In0, texture3d const& In1, typename reduce_func<vec_type>::type TexelFunc, typename reduce_func<vec_type>::type ReduceFunc)
|
|
{
|
|
return detail::compute_reduce_3d<vec_type>::call(In0, In1, TexelFunc, ReduceFunc);
|
|
}
|
|
|
|
template <typename vec_type>
|
|
inline vec_type reduce(texture_cube const& In0, texture_cube const& In1, typename reduce_func<vec_type>::type TexelFunc, typename reduce_func<vec_type>::type ReduceFunc)
|
|
{
|
|
return detail::compute_reduce_cube<vec_type>::call(In0, In1, TexelFunc, ReduceFunc);
|
|
}
|
|
|
|
template <typename vec_type>
|
|
inline vec_type reduce(texture_cube_array const& In0, texture_cube_array const& In1, typename reduce_func<vec_type>::type TexelFunc, typename reduce_func<vec_type>::type ReduceFunc)
|
|
{
|
|
return detail::compute_reduce_cube_array<vec_type>::call(In0, In1, TexelFunc, ReduceFunc);
|
|
}
|
|
}//namespace gli
|
|
|