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

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• Hash : 0ffc441e
  Author :
  Date : 2017-05-19T14:18:55
  

  Initialize uninitialized globals in GLSL output
  
  Initializing globals is done by the DeferGlobalInitializers AST
  transformation, which makes sure that the global variable init
  proceeds in the correct order. This is important since some global
  variables may use other uninitialized globals in their initializers.
  
  The global variable init is only done in case the WebGL shader spec is
  being followed. This avoids adding global initializers twice in case
  the same shader goes through multiple translations, assuming only one
  of them is a WebGL shader translation.
  
  BUG=angleproject:1966
  TEST=angle_end2end_tests, WebGL conformance tests
  
  Change-Id: Iea701d3ae40edc906abd87303f2aa27fd23bf55a
  Reviewed-on: https://chromium-review.googlesource.com/509689
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  Reviewed-by: Jamie Madill <jmadill@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 hasInterfaceBlock(const std::string &interfaceBlockName) const;
      unsigned int getInterfaceBlockRegister(const std::string &interfaceBlockName) const;
  
      const std::map<std::string, unsigned int> *getUniformRegisterMap() const;
  
    protected:
      void translate(TIntermBlock *root, ShCompileOptions compileOptions) 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> mInterfaceBlockRegisterMap;
      std::map<std::string, unsigned int> mUniformRegisterMap;
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TRANSLATORHLSL_H_
  

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