kc3-lang/angle/src/compiler/translator/hlsl/OutputHLSL.h

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• Hash : 335c6b86
  Author :
  Date : 2023-08-02T00:00:00
  

  D3D11: Do not specialize HLSL for multisampled rendering
  
  Pass the required state as a driver uniform instead of
  triggering fragment shader recompilation at draw calls.
  
  Bug: angleproject:8097
  Bug: angleproject:8131
  Fixed: chromium:1468993
  Change-Id: I15825c0522b29d48eb2c3b341ba96f139ef26460
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4742579
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com>
  

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• src/compiler/translator/hlsl/OutputHLSL.h

• //
  // Copyright 2002 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.
  //
  
  #ifndef COMPILER_TRANSLATOR_HLSL_OUTPUTHLSL_H_
  #define COMPILER_TRANSLATOR_HLSL_OUTPUTHLSL_H_
  
  #include <list>
  #include <map>
  #include <stack>
  
  #include "angle_gl.h"
  #include "compiler/translator/Compiler.h"
  #include "compiler/translator/FlagStd140Structs.h"
  #include "compiler/translator/ImmutableString.h"
  #include "compiler/translator/hlsl/ASTMetadataHLSL.h"
  #include "compiler/translator/hlsl/ShaderStorageBlockOutputHLSL.h"
  #include "compiler/translator/tree_util/IntermTraverse.h"
  
  class BuiltInFunctionEmulator;
  
  namespace sh
  {
  class AtomicCounterFunctionHLSL;
  class ImageFunctionHLSL;
  class ResourcesHLSL;
  class StructureHLSL;
  class TextureFunctionHLSL;
  class TSymbolTable;
  class TVariable;
  class UnfoldShortCircuit;
  
  using ReferencedVariables = std::map<int, const TVariable *>;
  
  class OutputHLSL : public TIntermTraverser
  {
    public:
      OutputHLSL(sh::GLenum shaderType,
                 ShShaderSpec shaderSpec,
                 int shaderVersion,
                 const TExtensionBehavior &extensionBehavior,
                 const char *sourcePath,
                 ShShaderOutput outputType,
                 int numRenderTargets,
                 int maxDualSourceDrawBuffers,
                 const std::vector<ShaderVariable> &uniforms,
                 const ShCompileOptions &compileOptions,
                 sh::WorkGroupSize workGroupSize,
                 TSymbolTable *symbolTable,
                 PerformanceDiagnostics *perfDiagnostics,
                 const std::map<int, const TInterfaceBlock *> &uniformBlockOptimizedMap,
                 const std::vector<InterfaceBlock> &shaderStorageBlocks,
                 uint8_t clipDistanceSize,
                 uint8_t cullDistanceSize,
                 bool isEarlyFragmentTestsSpecified);
  
      ~OutputHLSL() override;
  
      void output(TIntermNode *treeRoot, TInfoSinkBase &objSink);
  
      const std::map<std::string, unsigned int> &getShaderStorageBlockRegisterMap() const;
      const std::map<std::string, unsigned int> &getUniformBlockRegisterMap() const;
      const std::map<std::string, bool> &getUniformBlockUseStructuredBufferMap() const;
      const std::map<std::string, unsigned int> &getUniformRegisterMap() const;
      unsigned int getReadonlyImage2DRegisterIndex() const;
      unsigned int getImage2DRegisterIndex() const;
      const std::set<std::string> &getUsedImage2DFunctionNames() const;
  
      TInfoSinkBase &getInfoSink()
      {
          ASSERT(!mInfoSinkStack.empty());
          return *mInfoSinkStack.top();
      }
  
    protected:
      friend class ShaderStorageBlockOutputHLSL;
  
      TString zeroInitializer(const TType &type) const;
  
      void writeReferencedAttributes(TInfoSinkBase &out) const;
      void writeReferencedVaryings(TInfoSinkBase &out) const;
      void header(TInfoSinkBase &out,
                  const std::vector<MappedStruct> &std140Structs,
                  const BuiltInFunctionEmulator *builtInFunctionEmulator) const;
  
      void writeFloat(TInfoSinkBase &out, float f);
      void writeSingleConstant(TInfoSinkBase &out, const TConstantUnion *const constUnion);
      const TConstantUnion *writeConstantUnionArray(TInfoSinkBase &out,
                                                    const TConstantUnion *const constUnion,
                                                    const size_t size);
  
      // Visit AST nodes and output their code to the body stream
      void visitSymbol(TIntermSymbol *) override;
      void visitConstantUnion(TIntermConstantUnion *) override;
      bool visitSwizzle(Visit visit, TIntermSwizzle *node) override;
      bool visitBinary(Visit visit, TIntermBinary *) override;
      bool visitUnary(Visit visit, TIntermUnary *) override;
      bool visitTernary(Visit visit, TIntermTernary *) override;
      bool visitIfElse(Visit visit, TIntermIfElse *) override;
      bool visitSwitch(Visit visit, TIntermSwitch *) override;
      bool visitCase(Visit visit, TIntermCase *) override;
      void visitFunctionPrototype(TIntermFunctionPrototype *node) override;
      bool visitFunctionDefinition(Visit visit, TIntermFunctionDefinition *node) override;
      bool visitAggregate(Visit visit, TIntermAggregate *) override;
      bool visitBlock(Visit visit, TIntermBlock *node) override;
      bool visitGlobalQualifierDeclaration(Visit visit,
                                           TIntermGlobalQualifierDeclaration *node) override;
      bool visitDeclaration(Visit visit, TIntermDeclaration *node) override;
      bool visitLoop(Visit visit, TIntermLoop *) override;
      bool visitBranch(Visit visit, TIntermBranch *) override;
  
      bool handleExcessiveLoop(TInfoSinkBase &out, TIntermLoop *node);
  
      // Emit one of three strings depending on traverse phase. Called with literal strings so using
      // const char* instead of TString.
      void outputTriplet(TInfoSinkBase &out,
                         Visit visit,
                         const char *preString,
                         const char *inString,
                         const char *postString);
      void outputLineDirective(TInfoSinkBase &out, int line);
      void writeParameter(const TVariable *param, TInfoSinkBase &out);
  
      void outputConstructor(TInfoSinkBase &out, Visit visit, TIntermAggregate *node);
      const TConstantUnion *writeConstantUnion(TInfoSinkBase &out,
                                               const TType &type,
                                               const TConstantUnion *constUnion);
  
      void outputEqual(Visit visit, const TType &type, TOperator op, TInfoSinkBase &out);
      void outputAssign(Visit visit, const TType &type, TInfoSinkBase &out);
  
      void writeEmulatedFunctionTriplet(TInfoSinkBase &out, Visit visit, const TFunction *function);
  
      // Returns true if it found a 'same symbol' initializer (initializer that references the
      // variable it's initting)
      bool writeSameSymbolInitializer(TInfoSinkBase &out,
                                      TIntermSymbol *symbolNode,
                                      TIntermTyped *expression);
      // Returns true if variable initializer could be written using literal {} notation.
      bool writeConstantInitialization(TInfoSinkBase &out,
                                       TIntermSymbol *symbolNode,
                                       TIntermTyped *expression);
  
      void writeIfElse(TInfoSinkBase &out, TIntermIfElse *node);
  
      // Returns the function name
      TString addStructEqualityFunction(const TStructure &structure);
      TString addArrayEqualityFunction(const TType &type);
      TString addArrayAssignmentFunction(const TType &type);
      TString addArrayConstructIntoFunction(const TType &type);
      TString addFlatEvaluateFunction(const TType &type, const TType &parameterType);
  
      // Ensures if the type is a struct, the struct is defined
      void ensureStructDefined(const TType &type);
  
      bool shaderNeedsGenerateOutput() const;
      const char *generateOutputCall() const;
  
      sh::GLenum mShaderType;
      ShShaderSpec mShaderSpec;
      int mShaderVersion;
      const TExtensionBehavior &mExtensionBehavior;
      const char *mSourcePath;
      const ShShaderOutput mOutputType;
      const ShCompileOptions &mCompileOptions;
  
      bool mInsideFunction;
      bool mInsideMain;
  
      // Output streams
      TInfoSinkBase mHeader;
      TInfoSinkBase mBody;
      TInfoSinkBase mFooter;
  
      // A stack is useful when we want to traverse in the header, or in helper functions, but not
      // always write to the body. Instead use an InfoSink stack to keep our current state intact.
      // TODO (jmadill): Just passing an InfoSink in function parameters would be simpler.
      std::stack<TInfoSinkBase *> mInfoSinkStack;
  
      ReferencedVariables mReferencedUniforms;
  
      // Indexed by block id, not instance id.
      ReferencedInterfaceBlocks mReferencedUniformBlocks;
  
      std::map<int, const TInterfaceBlock *> mUniformBlockOptimizedMap;
  
      ReferencedVariables mReferencedAttributes;
      ReferencedVariables mReferencedVaryings;
      ReferencedVariables mReferencedOutputVariables;
  
      StructureHLSL *mStructureHLSL;
      ResourcesHLSL *mResourcesHLSL;
      TextureFunctionHLSL *mTextureFunctionHLSL;
      ImageFunctionHLSL *mImageFunctionHLSL;
      AtomicCounterFunctionHLSL *mAtomicCounterFunctionHLSL;
  
      // Parameters determining what goes in the header output
      bool mUsesFragColor;
      bool mUsesFragData;
      bool mUsesDepthRange;
      bool mUsesFragCoord;
      bool mUsesPointCoord;
      bool mUsesFrontFacing;
      bool mUsesHelperInvocation;
      bool mUsesPointSize;
      bool mUsesInstanceID;
      bool mHasMultiviewExtensionEnabled;
      bool mUsesViewID;
      bool mUsesVertexID;
      bool mUsesFragDepth;
      bool mUsesSampleID;
      bool mUsesSamplePosition;
      bool mUsesSampleMaskIn;
      bool mUsesSampleMask;
      bool mUsesNumSamples;
      bool mUsesNumWorkGroups;
      bool mUsesWorkGroupID;
      bool mUsesLocalInvocationID;
      bool mUsesGlobalInvocationID;
      bool mUsesLocalInvocationIndex;
      bool mUsesXor;
      bool mUsesDiscardRewriting;
      bool mUsesNestedBreak;
      bool mRequiresIEEEStrictCompiling;
      mutable bool mUseZeroArray;
      bool mUsesSecondaryColor;
  
      int mNumRenderTargets;
      int mMaxDualSourceDrawBuffers;
  
      TLayoutDepth mDepthLayout;
  
      int mUniqueIndex;  // For creating unique names
  
      CallDAG mCallDag;
      MetadataList mASTMetadataList;
      ASTMetadataHLSL *mCurrentFunctionMetadata;
      bool mOutputLod0Function;
      bool mInsideDiscontinuousLoop;
      int mNestedLoopDepth;
  
      TIntermSymbol *mExcessiveLoopIndex;
  
      TString structInitializerString(int indent, const TType &type, const TString &name) const;
  
      struct HelperFunction
      {
          TString functionName;
          TString functionDefinition;
  
          virtual ~HelperFunction() {}
      };
  
      // A list of all equality comparison functions. It's important to preserve the order at
      // which we add the functions, since nested structures call each other recursively, and
      // structure equality functions may need to call array equality functions and vice versa.
      // The ownership of the pointers is maintained by the type-specific arrays.
      std::vector<HelperFunction *> mEqualityFunctions;
  
      struct StructEqualityFunction : public HelperFunction
      {
          const TStructure *structure;
      };
      std::vector<StructEqualityFunction *> mStructEqualityFunctions;
  
      struct ArrayHelperFunction : public HelperFunction
      {
          TType type;
      };
      std::vector<ArrayHelperFunction *> mArrayEqualityFunctions;
  
      std::vector<ArrayHelperFunction> mArrayAssignmentFunctions;
  
      // The construct-into functions are functions that fill an N-element array passed as an out
      // parameter with the other N parameters of the function. This is used to work around that
      // arrays can't be return values in HLSL.
      std::vector<ArrayHelperFunction> mArrayConstructIntoFunctions;
  
      struct FlatEvaluateFunction : public HelperFunction
      {
          TType type;
          TType parameterType;
      };
      std::vector<FlatEvaluateFunction> mFlatEvaluateFunctions;
  
      sh::WorkGroupSize mWorkGroupSize;
  
      PerformanceDiagnostics *mPerfDiagnostics;
  
    private:
      TString generateStructMapping(const std::vector<MappedStruct> &std140Structs) const;
      ImmutableString samplerNamePrefixFromStruct(TIntermTyped *node);
      bool ancestorEvaluatesToSamplerInStruct();
      // We need to do struct mapping when pass the struct to a function or copy the struct via
      // assignment.
      bool needStructMapping(TIntermTyped *node);
  
      ShaderStorageBlockOutputHLSL *mSSBOOutputHLSL;
      uint8_t mClipDistanceSize;
      uint8_t mCullDistanceSize;
      bool mIsEarlyFragmentTestsSpecified;
      bool mNeedStructMapping;
  };
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_HLSL_OUTPUTHLSL_H_
  

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