| // Copyright 2017 The Dawn 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 DAWNNATIVE_OPENGL_SHADERMODULEGL_H_ |
| #define DAWNNATIVE_OPENGL_SHADERMODULEGL_H_ |
| |
| #include "dawn/native/ShaderModule.h" |
| |
| #include "dawn/native/opengl/opengl_platform.h" |
| |
| namespace dawn::native::opengl { |
| |
| class Device; |
| class PipelineLayout; |
| |
| std::string GetBindingName(BindGroupIndex group, BindingNumber bindingNumber); |
| |
| struct BindingLocation { |
| BindGroupIndex group; |
| BindingNumber binding; |
| }; |
| bool operator<(const BindingLocation& a, const BindingLocation& b); |
| |
| struct CombinedSampler { |
| BindingLocation samplerLocation; |
| BindingLocation textureLocation; |
| // OpenGL requires a sampler with texelFetch. If this is true, the developer did not provide |
| // one and Dawn should bind a dummy non-filtering sampler. |samplerLocation| is unused. |
| bool useDummySampler; |
| std::string GetName() const; |
| }; |
| bool operator<(const CombinedSampler& a, const CombinedSampler& b); |
| |
| using CombinedSamplerInfo = std::vector<CombinedSampler>; |
| |
| using BindingInfoArrayTable = |
| std::unordered_map<std::string, std::unique_ptr<BindingInfoArray>>; |
| |
| class ShaderModule final : public ShaderModuleBase { |
| public: |
| static ResultOrError<Ref<ShaderModule>> Create(Device* device, |
| const ShaderModuleDescriptor* descriptor, |
| ShaderModuleParseResult* parseResult); |
| |
| ResultOrError<std::string> TranslateToGLSL(const char* entryPointName, |
| SingleShaderStage stage, |
| CombinedSamplerInfo* combinedSamplers, |
| const PipelineLayout* layout, |
| bool* needsDummySampler) const; |
| |
| private: |
| ShaderModule(Device* device, const ShaderModuleDescriptor* descriptor); |
| ~ShaderModule() override = default; |
| MaybeError Initialize(ShaderModuleParseResult* parseResult); |
| }; |
| |
| } // namespace dawn::native::opengl |
| |
| #endif // DAWNNATIVE_OPENGL_SHADERMODULEGL_H_ |