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

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• Hash : 550c600b
  Author :
  Date : 2014-02-26T15:40:48
  

  Improvement on loop unrolling with loops indexing sampler arrays
  
      1) Before this workaround is hardwired on mac, now we move it behind a compil
      2) Fix the issue where "break" inside the loop isn't handled while unrolled.
  
      BUG=338474
      TEST=webgl conformance test sampler-array-using-loop-index.html
  
  Change-Id: I4996a42c2dea39a8a5af772c256f8e3cb383f59a
  Reviewed-on: https://chromium-review.googlesource.com/188079
  Reviewed-by: Zhenyao Mo <zmo@chromium.org>
  Tested-by: Zhenyao Mo <zmo@chromium.org>
  
  Conflicts:
  	include/GLSLANG/ShaderLang.h
  	src/compiler/translator/ValidateLimitations.cpp
  Change-Id: I546197bd7df1634ebccdd380be14c3250cd56151
  Reviewed-on: https://chromium-review.googlesource.com/189061
  Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
  Tested-by: Zhenyao Mo <zmo@chromium.org>
  

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• src/compiler/translator/OutputGLSLBase.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 CROSSCOMPILERGLSL_OUTPUTGLSLBASE_H_
  #define CROSSCOMPILERGLSL_OUTPUTGLSLBASE_H_
  
  #include <set>
  
  #include "compiler/translator/intermediate.h"
  #include "compiler/translator/LoopInfo.h"
  #include "compiler/translator/ParseContext.h"
  
  class TOutputGLSLBase : public TIntermTraverser
  {
  public:
      TOutputGLSLBase(TInfoSinkBase& objSink,
                      ShArrayIndexClampingStrategy clampingStrategy,
                      ShHashFunction64 hashFunction,
                      NameMap& nameMap,
                      TSymbolTable& symbolTable,
                      int shaderVersion);
  
  protected:
      TInfoSinkBase& objSink() { return mObjSink; }
      void writeTriplet(Visit visit, const char* preStr, const char* inStr, const char* postStr);
      void writeVariableType(const TType& type);
      virtual bool writeVariablePrecision(TPrecision precision) = 0;
      void writeFunctionParameters(const TIntermSequence& args);
      const ConstantUnion* writeConstantUnion(const TType& type, const ConstantUnion* pConstUnion);
      TString getTypeName(const TType& type);
  
      virtual void visitSymbol(TIntermSymbol* node);
      virtual void visitConstantUnion(TIntermConstantUnion* node);
      virtual bool visitBinary(Visit visit, TIntermBinary* node);
      virtual bool visitUnary(Visit visit, TIntermUnary* node);
      virtual bool visitSelection(Visit visit, TIntermSelection* node);
      virtual bool visitAggregate(Visit visit, TIntermAggregate* node);
      virtual bool visitLoop(Visit visit, TIntermLoop* node);
      virtual bool visitBranch(Visit visit, TIntermBranch* node);
  
      void visitCodeBlock(TIntermNode* node);
  
  
      // Return the original name if hash function pointer is NULL;
      // otherwise return the hashed name.
      TString hashName(const TString& name);
      // Same as hashName(), but without hashing built-in variables.
      TString hashVariableName(const TString& name);
      // Same as hashName(), but without hashing built-in functions.
      TString hashFunctionName(const TString& mangled_name);
  
  private:
      bool structDeclared(const TStructure* structure) const;
      void declareStruct(const TStructure* structure);
  
      TInfoSinkBase& mObjSink;
      bool mDeclaringVariables;
  
      // Structs are declared as the tree is traversed. This set contains all
      // the structs already declared. It is maintained so that a struct is
      // declared only once.
      typedef std::set<TString> DeclaredStructs;
      DeclaredStructs mDeclaredStructs;
  
      // Stack of loops that need to be unrolled.
      TLoopStack mLoopUnrollStack;
  
      ShArrayIndexClampingStrategy mClampingStrategy;
  
      // name hashing.
      ShHashFunction64 mHashFunction;
  
      NameMap& mNameMap;
  
      TSymbolTable& mSymbolTable;
  
      const int mShaderVersion;
  };
  
  #endif  // CROSSCOMPILERGLSL_OUTPUTGLSLBASE_H_
  

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