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

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• Hash : 156d7197
  Author :
  Date : 2016-07-21T16:11:00
  

  HLSL: Insert return statements into functions that are missing them.
  
  It's allowed to not have all code paths return a value in ESSL but the HLSL
  compiler detects this and generates an error.  Work around this by adding
  dummy return statements at the end of each function that doesn't have one.
  
  TEST=deqp/data/gles2/shaders/functions.html
  
  BUG=angleproject:1015
  BUG=478572
  
  Change-Id: I2913f90f0994d4caf25cc43b16b9fc4e9efb19a5
  Reviewed-on: https://chromium-review.googlesource.com/362085
  Reviewed-by: Zhenyao Mo <zmo@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/compiler/translator/util.h

• //
  // Copyright (c) 2002-2010 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_UTIL_H_
  #define COMPILER_TRANSLATOR_UTIL_H_
  
  #include <stack>
  
  #include "angle_gl.h"
  #include <GLSLANG/ShaderLang.h>
  
  #include "compiler/translator/Operator.h"
  #include "compiler/translator/Types.h"
  
  // strtof_clamp is like strtof but
  //   1. it forces C locale, i.e. forcing '.' as decimal point.
  //   2. it clamps the value to -FLT_MAX or FLT_MAX if overflow happens.
  // Return false if overflow happens.
  bool strtof_clamp(const std::string &str, float *value);
  
  // If overflow happens, clamp the value to UINT_MIN or UINT_MAX.
  // Return false if overflow happens.
  bool atoi_clamp(const char *str, unsigned int *value);
  
  class TSymbolTable;
  
  namespace sh
  {
  
  GLenum GLVariableType(const TType &type);
  GLenum GLVariablePrecision(const TType &type);
  bool IsVaryingIn(TQualifier qualifier);
  bool IsVaryingOut(TQualifier qualifier);
  bool IsVarying(TQualifier qualifier);
  InterpolationType GetInterpolationType(TQualifier qualifier);
  TString ArrayString(const TType &type);
  // Handles only basic output variable types.
  TType ConvertShaderVariableTypeToTType(sh::GLenum type);
  
  TOperator TypeToConstructorOperator(const TType &type);
  
  class GetVariableTraverser : angle::NonCopyable
  {
    public:
      GetVariableTraverser(const TSymbolTable &symbolTable);
      virtual ~GetVariableTraverser() {}
  
      template <typename VarT>
      void traverse(const TType &type, const TString &name, std::vector<VarT> *output);
  
    protected:
      // May be overloaded
      virtual void visitVariable(ShaderVariable *newVar) {}
  
    private:
      // Helper function called by traverse() to fill specific fields
      // for attributes/varyings/uniforms.
      template <typename VarT>
      void setTypeSpecificInfo(
          const TType &type, const TString &name, VarT *variable) {}
  
      const TSymbolTable &mSymbolTable;
  };
  
  }
  
  #endif // COMPILER_TRANSLATOR_UTIL_H_
  

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