kc3-lang/angle/src/libANGLE/renderer/vulkan/ShaderInterfaceVariableInfoMap.h

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• Hash : 40c17b58
  Author :
  Date : 2022-12-13T15:35:23
  

  Vulkan: Move SPIR-V transform to vulkan/
  
  No longer used by metal/.
  
  Bug: angleproject:7220
  Change-Id: Idb3a6369fefbcf87e7993daa652c8702ec53c20f
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4104002
  Reviewed-by: Yuxin Hu <yuxinhu@google.com>
  Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Yuxin Hu <yuxinhu@google.com>
  

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• src/libANGLE/renderer/vulkan/ShaderInterfaceVariableInfoMap.h

• //
  // Copyright 2021 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // ShaderInterfaceVariableInfoMap: Maps shader interface variable names to their Vulkan mapping.
  
  #ifndef LIBANGLE_RENDERER_VULKAN_SHADERINTERFACEVARIABLEINFOMAP_H_
  #define LIBANGLE_RENDERER_VULKAN_SHADERINTERFACEVARIABLEINFOMAP_H_
  
  #include "common/FastVector.h"
  #include "libANGLE/renderer/ProgramImpl.h"
  #include "libANGLE/renderer/renderer_utils.h"
  #include "libANGLE/renderer/vulkan/spv_utils.h"
  
  #include <functional>
  
  #include <stdio.h>
  
  namespace rx
  {
  
  enum class ShaderVariableType
  {
      AtomicCounter,
      Attribute,
      DefaultUniform,
      DriverUniform,
      FramebufferFetch,
      Image,
      Output,
      SecondaryOutput,
      ShaderStorageBuffer,
      Texture,
      TransformFeedback,
      UniformBuffer,
      Varying,
      EnumCount,
  };
  
  struct TypeAndIndex
  {
      ShaderVariableType variableType;
      uint32_t index;
  };
  
  class ShaderInterfaceVariableInfoMap final : angle::NonCopyable
  {
    public:
      using VariableInfoArray     = std::vector<ShaderInterfaceVariableInfo>;
      using VariableTypeToInfoMap = angle::PackedEnumMap<ShaderVariableType, VariableInfoArray>;
      using NameToTypeAndIndexMap = angle::HashMap<std::string, TypeAndIndex>;
  
      static constexpr size_t kResourceFastMapMax = 32;
      using ResourceIndexMap                      = angle::FastMap<uint32_t, kResourceFastMapMax>;
      using VariableTypeToIndexMap = angle::PackedEnumMap<ShaderVariableType, ResourceIndexMap>;
  
      ShaderInterfaceVariableInfoMap();
      ~ShaderInterfaceVariableInfoMap();
  
      void clear();
      void load(const gl::ShaderMap<VariableTypeToInfoMap> &data,
                const gl::ShaderMap<NameToTypeAndIndexMap> &nameToTypeAndIndexMap,
                const gl::ShaderMap<VariableTypeToIndexMap> &indexedResourceIndexMap);
  
      ShaderInterfaceVariableInfo &add(gl::ShaderType shaderType,
                                       ShaderVariableType variableType,
                                       const std::string &variableName);
      void markAsDuplicate(gl::ShaderType shaderType,
                           ShaderVariableType variableType,
                           const std::string &variableName);
      ShaderInterfaceVariableInfo &addOrGet(gl::ShaderType shaderType,
                                            ShaderVariableType variableType,
                                            const std::string &variableName);
  
      void setActiveStages(gl::ShaderType shaderType,
                           ShaderVariableType variableType,
                           const std::string &variableName,
                           gl::ShaderBitSet activeStages);
      ShaderInterfaceVariableInfo &getMutable(gl::ShaderType shaderType,
                                              ShaderVariableType variableType,
                                              const std::string &variableName);
  
      const ShaderInterfaceVariableInfo &getDefaultUniformInfo(gl::ShaderType shaderType) const;
      const ShaderInterfaceVariableInfo &getIndexedVariableInfo(gl::ShaderType shaderType,
                                                                ShaderVariableType variableType,
                                                                uint32_t variableIndex) const;
      bool hasAtomicCounterInfo(gl::ShaderType shaderType) const;
      const ShaderInterfaceVariableInfo &getAtomicCounterInfo(gl::ShaderType shaderType) const;
      const ShaderInterfaceVariableInfo &getFramebufferFetchInfo(gl::ShaderType shaderType) const;
      bool hasTransformFeedbackInfo(gl::ShaderType shaderType, uint32_t bufferIndex) const;
      const ShaderInterfaceVariableInfo &getTransformFeedbackInfo(gl::ShaderType shaderType,
                                                                  uint32_t bufferIndex) const;
  
      uint32_t getDefaultUniformBinding(gl::ShaderType shaderType) const;
      uint32_t getXfbBufferBinding(uint32_t xfbBufferIndex) const;
      uint32_t getAtomicCounterBufferBinding(gl::ShaderType shaderType,
                                             uint32_t atomicCounterBufferIndex) const;
  
      bool hasVariable(gl::ShaderType shaderType, const std::string &variableName) const;
      const ShaderInterfaceVariableInfo &getVariableByName(gl::ShaderType shaderType,
                                                           const std::string &variableName) const;
      void mapIndexedResourceByName(gl::ShaderType shaderType,
                                    ShaderVariableType variableType,
                                    uint32_t resourceIndex,
                                    const std::string &variableName);
      void mapIndexedResource(gl::ShaderType shaderType,
                              ShaderVariableType variableType,
                              uint32_t resourceIndex,
                              uint32_t variableIndex);
  
      const VariableInfoArray &getAttributes() const;
      const gl::ShaderMap<VariableTypeToInfoMap> &getData() const;
      const gl::ShaderMap<NameToTypeAndIndexMap> &getNameToTypeAndIndexMap() const;
      const gl::ShaderMap<VariableTypeToIndexMap> &getIndexedResourceMap() const;
  
    private:
      gl::ShaderMap<VariableTypeToInfoMap> mData;
      gl::ShaderMap<NameToTypeAndIndexMap> mNameToTypeAndIndexMap;
      gl::ShaderMap<VariableTypeToIndexMap> mIndexedResourceIndexMap;
  };
  
  ANGLE_INLINE const ShaderInterfaceVariableInfo &
  ShaderInterfaceVariableInfoMap::getDefaultUniformInfo(gl::ShaderType shaderType) const
  {
      ASSERT(mData[shaderType][ShaderVariableType::DefaultUniform].size() == 1);
      return mData[shaderType][ShaderVariableType::DefaultUniform][0];
  }
  
  ANGLE_INLINE const ShaderInterfaceVariableInfo &
  ShaderInterfaceVariableInfoMap::getIndexedVariableInfo(gl::ShaderType shaderType,
                                                         ShaderVariableType variableType,
                                                         uint32_t resourceIndex) const
  {
      ASSERT(resourceIndex < mIndexedResourceIndexMap[shaderType][variableType].size());
      uint32_t variableIndex = mIndexedResourceIndexMap[shaderType][variableType][resourceIndex];
      ASSERT(variableIndex < mData[shaderType][variableType].size());
      return mData[shaderType][variableType][variableIndex];
  }
  
  ANGLE_INLINE bool ShaderInterfaceVariableInfoMap::hasAtomicCounterInfo(
      gl::ShaderType shaderType) const
  {
      return !mData[shaderType][ShaderVariableType::AtomicCounter].empty();
  }
  
  ANGLE_INLINE const ShaderInterfaceVariableInfo &
  ShaderInterfaceVariableInfoMap::getAtomicCounterInfo(gl::ShaderType shaderType) const
  {
      ASSERT(mData[shaderType][ShaderVariableType::AtomicCounter].size() == 1);
      return mData[shaderType][ShaderVariableType::AtomicCounter][0];
  }
  
  ANGLE_INLINE const ShaderInterfaceVariableInfo &
  ShaderInterfaceVariableInfoMap::getFramebufferFetchInfo(gl::ShaderType shaderType) const
  {
      ASSERT(!mData[shaderType][ShaderVariableType::FramebufferFetch].empty());
      return mData[shaderType][ShaderVariableType::FramebufferFetch][0];
  }
  
  ANGLE_INLINE const ShaderInterfaceVariableInfo &
  ShaderInterfaceVariableInfoMap::getTransformFeedbackInfo(gl::ShaderType shaderType,
                                                           uint32_t bufferIndex) const
  {
      ASSERT(bufferIndex < mData[shaderType][ShaderVariableType::TransformFeedback].size());
      return mData[shaderType][ShaderVariableType::TransformFeedback][bufferIndex];
  }
  
  ANGLE_INLINE uint32_t
  ShaderInterfaceVariableInfoMap::getDefaultUniformBinding(gl::ShaderType shaderType) const
  {
      return getDefaultUniformInfo(shaderType).binding;
  }
  
  ANGLE_INLINE uint32_t
  ShaderInterfaceVariableInfoMap::getXfbBufferBinding(uint32_t xfbBufferIndex) const
  {
      // Note: we only use this method for transform feedback emulation. And emulation only supports
      // XFB in the vertex shader.
      return getTransformFeedbackInfo(gl::ShaderType::Vertex, xfbBufferIndex).binding;
  }
  
  ANGLE_INLINE uint32_t ShaderInterfaceVariableInfoMap::getAtomicCounterBufferBinding(
      gl::ShaderType shaderType,
      uint32_t atomicCounterBufferIndex) const
  {
      ASSERT(hasAtomicCounterInfo(shaderType));
      return getAtomicCounterInfo(shaderType).binding + atomicCounterBufferIndex;
  }
  }  // namespace rx
  #endif  // LIBANGLE_RENDERER_VULKAN_SHADERINTERFACEVARIABLEINFOMAP_H_
  

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