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// Copyright 2020 The Tint Authors.
//
// 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.
#ifndef SRC_TINT_AST_BUILTIN_TEXTURE_HELPER_TEST_H_
#define SRC_TINT_AST_BUILTIN_TEXTURE_HELPER_TEST_H_
#include <vector>
#include "src/tint/builtin/access.h"
#include "src/tint/builtin/texel_format.h"
#include "src/tint/program_builder.h"
#include "src/tint/type/storage_texture.h"
#include "src/tint/type/texture_dimension.h"
namespace tint::ast::builtin::test {
/// The name of the texture global variable used by the tests.
static constexpr const char* kTextureName = "Texture";
/// The name of the sampler global variable used by the tests.
static constexpr const char* kSamplerName = "Sampler";
enum class TextureKind { kRegular, kDepth, kDepthMultisampled, kMultisampled, kStorage };
enum class TextureDataType { kF32, kU32, kI32 };
std::ostream& operator<<(std::ostream& out, const TextureKind& kind);
std::ostream& operator<<(std::ostream& out, const TextureDataType& ty);
/// Non-exhaustive list of valid texture overloads
enum class ValidTextureOverload {
kDimensions1d,
kDimensions2d,
kDimensions2dLevel,
kDimensions2dArray,
kDimensions2dArrayLevel,
kDimensions3d,
kDimensions3dLevel,
kDimensionsCube,
kDimensionsCubeLevel,
kDimensionsCubeArray,
kDimensionsCubeArrayLevel,
kDimensionsMultisampled2d,
kDimensionsDepth2d,
kDimensionsDepth2dLevel,
kDimensionsDepth2dArray,
kDimensionsDepth2dArrayLevel,
kDimensionsDepthCube,
kDimensionsDepthCubeLevel,
kDimensionsDepthCubeArray,
kDimensionsDepthCubeArrayLevel,
kDimensionsDepthMultisampled2d,
kDimensionsStorageWO1d,
kDimensionsStorageWO2d,
kDimensionsStorageWO2dArray,
kDimensionsStorageWO3d,
kGather2dF32,
kGather2dOffsetF32,
kGather2dArrayF32,
kGather2dArrayOffsetF32,
kGatherCubeF32,
kGatherCubeArrayF32,
kGatherDepth2dF32,
kGatherDepth2dOffsetF32,
kGatherDepth2dArrayF32,
kGatherDepth2dArrayOffsetF32,
kGatherDepthCubeF32,
kGatherDepthCubeArrayF32,
kGatherCompareDepth2dF32,
kGatherCompareDepth2dOffsetF32,
kGatherCompareDepth2dArrayF32,
kGatherCompareDepth2dArrayOffsetF32,
kGatherCompareDepthCubeF32,
kGatherCompareDepthCubeArrayF32,
kNumLayers2dArray,
kNumLayersCubeArray,
kNumLayersDepth2dArray,
kNumLayersDepthCubeArray,
kNumLayersStorageWO2dArray,
kNumLevels2d,
kNumLevels2dArray,
kNumLevels3d,
kNumLevelsCube,
kNumLevelsCubeArray,
kNumLevelsDepth2d,
kNumLevelsDepth2dArray,
kNumLevelsDepthCube,
kNumLevelsDepthCubeArray,
kNumSamplesMultisampled2d,
kNumSamplesDepthMultisampled2d,
kSample1dF32,
kSample2dF32,
kSample2dOffsetF32,
kSample2dArrayF32,
kSample2dArrayOffsetF32,
kSample3dF32,
kSample3dOffsetF32,
kSampleCubeF32,
kSampleCubeArrayF32,
kSampleDepth2dF32,
kSampleDepth2dOffsetF32,
kSampleDepth2dArrayF32,
kSampleDepth2dArrayOffsetF32,
kSampleDepthCubeF32,
kSampleDepthCubeArrayF32,
kSampleBias2dF32,
kSampleBias2dOffsetF32,
kSampleBias2dArrayF32,
kSampleBias2dArrayOffsetF32,
kSampleBias3dF32,
kSampleBias3dOffsetF32,
kSampleBiasCubeF32,
kSampleBiasCubeArrayF32,
kSampleLevel2dF32,
kSampleLevel2dOffsetF32,
kSampleLevel2dArrayF32,
kSampleLevel2dArrayOffsetF32,
kSampleLevel3dF32,
kSampleLevel3dOffsetF32,
kSampleLevelCubeF32,
kSampleLevelCubeArrayF32,
kSampleLevelDepth2dF32,
kSampleLevelDepth2dOffsetF32,
kSampleLevelDepth2dArrayF32,
kSampleLevelDepth2dArrayOffsetF32,
kSampleLevelDepthCubeF32,
kSampleLevelDepthCubeArrayF32,
kSampleGrad2dF32,
kSampleGrad2dOffsetF32,
kSampleGrad2dArrayF32,
kSampleGrad2dArrayOffsetF32,
kSampleGrad3dF32,
kSampleGrad3dOffsetF32,
kSampleGradCubeF32,
kSampleGradCubeArrayF32,
kSampleCompareDepth2dF32,
kSampleCompareDepth2dOffsetF32,
kSampleCompareDepth2dArrayF32,
kSampleCompareDepth2dArrayOffsetF32,
kSampleCompareDepthCubeF32,
kSampleCompareDepthCubeArrayF32,
kSampleCompareLevelDepth2dF32,
kSampleCompareLevelDepth2dOffsetF32,
kSampleCompareLevelDepth2dArrayF32,
kSampleCompareLevelDepth2dArrayOffsetF32,
kSampleCompareLevelDepthCubeF32,
kSampleCompareLevelDepthCubeArrayF32,
kLoad1dLevelF32,
kLoad1dLevelU32,
kLoad1dLevelI32,
kLoad2dLevelF32,
kLoad2dLevelU32,
kLoad2dLevelI32,
kLoad2dArrayLevelF32,
kLoad2dArrayLevelU32,
kLoad2dArrayLevelI32,
kLoad3dLevelF32,
kLoad3dLevelU32,
kLoad3dLevelI32,
kLoadMultisampled2dF32,
kLoadMultisampled2dU32,
kLoadMultisampled2dI32,
kLoadDepth2dLevelF32,
kLoadDepth2dArrayLevelF32,
kLoadDepthMultisampled2dF32,
kStoreWO1dRgba32float, // Not permutated for all texel formats
kStoreWO2dRgba32float, // Not permutated for all texel formats
kStoreWO2dArrayRgba32float, // Not permutated for all texel formats
kStoreWO3dRgba32float, // Not permutated for all texel formats
};
/// @param texture_overload the ValidTextureOverload
/// @returns true if the ValidTextureOverload builtin returns no value.
bool ReturnsVoid(ValidTextureOverload texture_overload);
/// Describes a texture builtin overload
struct TextureOverloadCase {
/// Args is a list of Expression used as arguments to the texture overload case.
using Args = utils::Vector<const Expression*, 8>;
/// Constructor for textureSample...() functions
TextureOverloadCase(ValidTextureOverload,
const char*,
TextureKind,
type::SamplerKind,
type::TextureDimension,
TextureDataType,
const char*,
std::function<Args(ProgramBuilder*)>,
bool /* returns_value */);
/// Constructor for textureLoad() functions with non-storage textures
TextureOverloadCase(ValidTextureOverload,
const char*,
TextureKind,
type::TextureDimension,
TextureDataType,
const char*,
std::function<Args(ProgramBuilder*)>,
bool /* returns_value */);
/// Constructor for textureLoad() with storage textures
TextureOverloadCase(ValidTextureOverload,
const char*,
tint::builtin::Access,
tint::builtin::TexelFormat,
type::TextureDimension,
TextureDataType,
const char*,
std::function<Args(ProgramBuilder*)>,
bool /* returns_value */);
/// Copy constructor
TextureOverloadCase(const TextureOverloadCase&);
/// Destructor
~TextureOverloadCase();
/// @return a vector containing a large number (non-exhaustive) of valid
/// texture overloads.
static std::vector<TextureOverloadCase> ValidCases();
/// @param builder the AST builder used for the test
/// @returns the vector component type of the texture function return value
Type BuildResultVectorComponentType(ProgramBuilder* builder) const;
/// @param builder the AST builder used for the test
/// @returns a variable holding the test texture, automatically registered as
/// a global variable.
const Variable* BuildTextureVariable(ProgramBuilder* builder) const;
/// @param builder the AST builder used for the test
/// @returns a Variable holding the test sampler, automatically registered as
/// a global variable.
const Variable* BuildSamplerVariable(ProgramBuilder* builder) const;
/// The enumerator for this overload
const ValidTextureOverload overload;
/// A human readable description of the overload
const char* const description;
/// The texture kind for the texture parameter
const TextureKind texture_kind;
/// The sampler kind for the sampler parameter
/// Used only when texture_kind is not kStorage
type::SamplerKind const sampler_kind = type::SamplerKind::kSampler;
/// The access control for the storage texture
/// Used only when texture_kind is kStorage
tint::builtin::Access const access = tint::builtin::Access::kReadWrite;
/// The image format for the storage texture
/// Used only when texture_kind is kStorage
tint::builtin::TexelFormat const texel_format = tint::builtin::TexelFormat::kUndefined;
/// The dimensions of the texture parameter
type::TextureDimension const texture_dimension;
/// The data type of the texture parameter
const TextureDataType texture_data_type;
/// Name of the function. e.g. `textureSample`, `textureSampleGrad`, etc
const char* const function;
/// A function that builds the AST arguments for the overload
std::function<Args(ProgramBuilder*)> const args;
/// True if the function returns a value
const bool returns_value;
};
std::ostream& operator<<(std::ostream& out, const TextureOverloadCase& data);
} // namespace tint::ast::builtin::test
#endif // SRC_TINT_AST_BUILTIN_TEXTURE_HELPER_TEST_H_