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TextureComponentMapping: added operator* that combines two swizzles i…
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138 changes: 138 additions & 0 deletions
138
Tests/DiligentCoreTest/src/GraphicsEngine/TextureViewBaseTest.cpp
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| /* | ||
| * Copyright 2023 Diligent Graphics LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * In no event and under no legal theory, whether in tort (including negligence), | ||
| * contract, or otherwise, unless required by applicable law (such as deliberate | ||
| * and grossly negligent acts) or agreed to in writing, shall any Contributor be | ||
| * liable for any damages, including any direct, indirect, special, incidental, | ||
| * or consequential damages of any character arising as a result of this License or | ||
| * out of the use or inability to use the software (including but not limited to damages | ||
| * for loss of goodwill, work stoppage, computer failure or malfunction, or any and | ||
| * all other commercial damages or losses), even if such Contributor has been advised | ||
| * of the possibility of such damages. | ||
| */ | ||
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| #include "TextureView.h" | ||
| #include "GraphicsTypesOutputInserters.hpp" | ||
| #include "FastRand.hpp" | ||
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| #include "gtest/gtest.h" | ||
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| using namespace Diligent; | ||
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| namespace | ||
| { | ||
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| TEST(TextureComponentMappingTest, OperatorMultiply) | ||
| { | ||
| auto Test = [](const std::string& lhs, const std::string& rhs, const std::string& res) { | ||
| TextureComponentMapping Mapping1; | ||
| EXPECT_TRUE(TextureComponentMappingFromString(lhs, Mapping1)); | ||
| TextureComponentMapping Mapping2; | ||
| EXPECT_TRUE(TextureComponentMappingFromString(rhs, Mapping2)); | ||
| TextureComponentMapping Res; | ||
| EXPECT_TRUE(TextureComponentMappingFromString(res, Res)); | ||
| EXPECT_EQ(Mapping1 * Mapping2, Res) << Mapping1 << " * " << Mapping2 << " = " << Res; | ||
| }; | ||
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| Test("rgba", "rrrr", "rrrr"); | ||
| Test("rgba", "gggg", "gggg"); | ||
| Test("rgba", "bbbb", "bbbb"); | ||
| Test("rgba", "aaaa", "aaaa"); | ||
| Test("rgba", "0000", "0000"); | ||
| Test("rgba", "1111", "1111"); | ||
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| Test("rrrr", "rgba", "rrrr"); | ||
| Test("gggg", "rgba", "gggg"); | ||
| Test("bbbb", "rgba", "bbbb"); | ||
| Test("aaaa", "rgba", "aaaa"); | ||
| Test("0000", "rgba", "0000"); | ||
| Test("1111", "rgba", "1111"); | ||
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| Test("rgba", "rgba", "rgba"); | ||
| Test("rgba", "abgr", "abgr"); | ||
| Test("rrr1", "bbbb", "rrrr"); | ||
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| for (Uint32 swizzle1 = 1; swizzle1 < TEXTURE_COMPONENT_SWIZZLE_COUNT; ++swizzle1) | ||
| { | ||
| const auto Swizzle1 = static_cast<TEXTURE_COMPONENT_SWIZZLE>(swizzle1); | ||
| for (Uint32 swizzle2 = 1; swizzle2 < TEXTURE_COMPONENT_SWIZZLE_COUNT; ++swizzle2) | ||
| { | ||
| const auto Swizzle2 = static_cast<TEXTURE_COMPONENT_SWIZZLE>(swizzle2); | ||
| TextureComponentMapping Mapping1{Swizzle1, Swizzle1, Swizzle1, Swizzle1}; | ||
| TextureComponentMapping Mapping2{Swizzle2, Swizzle2, Swizzle2, Swizzle2}; | ||
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| const auto RefSwizzle = Swizzle2 == TEXTURE_COMPONENT_SWIZZLE_ONE || Swizzle2 == TEXTURE_COMPONENT_SWIZZLE_ZERO ? | ||
| Swizzle2 : | ||
| Swizzle1; | ||
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| TextureComponentMapping RefMapping{ | ||
| RefSwizzle == TEXTURE_COMPONENT_SWIZZLE_R ? TEXTURE_COMPONENT_SWIZZLE_IDENTITY : RefSwizzle, | ||
| RefSwizzle == TEXTURE_COMPONENT_SWIZZLE_G ? TEXTURE_COMPONENT_SWIZZLE_IDENTITY : RefSwizzle, | ||
| RefSwizzle == TEXTURE_COMPONENT_SWIZZLE_B ? TEXTURE_COMPONENT_SWIZZLE_IDENTITY : RefSwizzle, | ||
| RefSwizzle == TEXTURE_COMPONENT_SWIZZLE_A ? TEXTURE_COMPONENT_SWIZZLE_IDENTITY : RefSwizzle, | ||
| }; | ||
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| EXPECT_EQ(Mapping1 * Mapping2, RefMapping) << Mapping1 << " * " << Mapping2 << " = " << RefMapping; | ||
| } | ||
| } | ||
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| Test("ab01", "barg", "01ab"); | ||
| Test("ab01", "ba1g", "011b"); | ||
| Test("gba1", "barg", "a1gb"); | ||
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| FastRandInt rnd{0, 0, static_cast<int>(TEXTURE_COMPONENT_SWIZZLE_COUNT - 1)}; | ||
| for (size_t i = 0; i < 2048; ++i) | ||
| { | ||
| TextureComponentMapping Mapping1{ | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| }; | ||
| TextureComponentMapping Mapping2{ | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| static_cast<TEXTURE_COMPONENT_SWIZZLE>(rnd()), | ||
| }; | ||
| TextureComponentMapping Res = Mapping1 * Mapping2; | ||
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| for (Uint32 c = 0; c < 4; ++c) | ||
| { | ||
| if (Mapping1[c] == TEXTURE_COMPONENT_SWIZZLE_IDENTITY) | ||
| Mapping1[c] = static_cast<TEXTURE_COMPONENT_SWIZZLE>(c + TEXTURE_COMPONENT_SWIZZLE_R); | ||
| if (Mapping2[c] == TEXTURE_COMPONENT_SWIZZLE_IDENTITY) | ||
| Mapping2[c] = static_cast<TEXTURE_COMPONENT_SWIZZLE>(c + TEXTURE_COMPONENT_SWIZZLE_R); | ||
| } | ||
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| auto CombineSwizzle = [&Mapping1](TEXTURE_COMPONENT_SWIZZLE Swizzle) { | ||
| VERIFY_EXPR(Swizzle != TEXTURE_COMPONENT_SWIZZLE_IDENTITY); | ||
| return (Swizzle == TEXTURE_COMPONENT_SWIZZLE_ONE || Swizzle == TEXTURE_COMPONENT_SWIZZLE_ZERO) ? | ||
| Swizzle : | ||
| Mapping1[Swizzle - TEXTURE_COMPONENT_SWIZZLE_R]; | ||
| }; | ||
| TextureComponentMapping Ref{ | ||
| CombineSwizzle(Mapping2.R), | ||
| CombineSwizzle(Mapping2.G), | ||
| CombineSwizzle(Mapping2.B), | ||
| CombineSwizzle(Mapping2.A), | ||
| }; | ||
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| EXPECT_EQ(Res, Ref) << Mapping1 << " * " << Mapping2; | ||
| } | ||
| } | ||
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| } // namespace |