kc3-lang/angle/src/compiler/translator/TranslatorHLSL.h

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• Hash : 89a69a03
  Author :
  Date : 2017-10-23T12:20:45
  

  Generate performance warnings in HLSL translation
  
  Generate performance warnings for some code that undergoes heavy
  emulation when translated to HLSL:
  1. Dynamic indexing of vectors and matrices.
  2. Non-empty fall-through cases in switch/case.
  
  The warnings are generated only when code is translated to HLSL.
  Generating them in the parsing stage would add too much maintenance
  burden.
  
  Improves switch statement fall-through handling in cases where an
  empty fall-through case follows a non-empty one so that extra
  performance warnings are not generated.
  
  BUG=angleproject:1116
  
  Change-Id: I7c85d78fe7c4f8e6042bda72ceaaf6e37dadfe6c
  Reviewed-on: https://chromium-review.googlesource.com/732986
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  

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• src/compiler/translator/TranslatorHLSL.h

• //
  // Copyright (c) 2002-2013 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_TRANSLATORHLSL_H_
  #define COMPILER_TRANSLATOR_TRANSLATORHLSL_H_
  
  #include "compiler/translator/Compiler.h"
  
  namespace sh
  {
  
  class TranslatorHLSL : public TCompiler
  {
    public:
      TranslatorHLSL(sh::GLenum type, ShShaderSpec spec, ShShaderOutput output);
      TranslatorHLSL *getAsTranslatorHLSL() override { return this; }
  
      bool hasUniformBlock(const std::string &interfaceBlockName) const;
      unsigned int getUniformBlockRegister(const std::string &interfaceBlockName) const;
  
      const std::map<std::string, unsigned int> *getUniformRegisterMap() const;
  
    protected:
      void translate(TIntermBlock *root,
                     ShCompileOptions compileOptions,
                     PerformanceDiagnostics *perfDiagnostics) override;
      bool shouldFlattenPragmaStdglInvariantAll() override;
  
      // collectVariables needs to be run always so registers can be assigned.
      bool shouldCollectVariables(ShCompileOptions compileOptions) override { return true; }
  
      // Globals are initialized in output so it is redundant to initialize them in the AST.
      bool needToInitializeGlobalsInAST() const override { return false; }
  
      std::map<std::string, unsigned int> mUniformBlockRegisterMap;
      std::map<std::string, unsigned int> mUniformRegisterMap;
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TRANSLATORHLSL_H_
  

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