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

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• Hash : e294bb87
  Author :
  Date : 2014-07-17T14:16:26
  

  Add new shader inspection APIs.
  
  Each new entry point corresponds to one of the variable types:
  varyings, attributes, uniforms, output variables, and interface
  blocks. They return a pointer to the vector with all of the
  parsed variables, which then the app can copy to its own memory.
  
  Currently we do not support the staticUse field in the HLSL
  translator.
  
  BUG=angle:466
  
  Change-Id: I7dc09e761ab070feef5360ad27740110c44853b3
  Reviewed-on: https://chromium-review.googlesource.com/208750
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Zhenyao Mo <zmo@chromium.org>
  Reviewed-by: Nicolas Capens <capn@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_UTIL_H
  #define COMPILER_UTIL_H
  
  #include <stack>
  
  #include "angle_gl.h"
  #include <GLSLANG/ShaderLang.h>
  
  #include "compiler/translator/Types.h"
  
  // atof_clamp is like atof 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.
  extern bool atof_clamp(const char *str, float *value);
  
  // If overflow happens, clamp the value to INT_MIN or INT_MAX.
  // Return false if overflow happens.
  extern bool atoi_clamp(const char *str, int *value);
  
  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);
  BlockLayoutType GetBlockLayoutType(TLayoutBlockStorage blockStorage);
  TString ArrayString(const TType &type);
  
  template <typename VarT>
  class GetVariableTraverser
  {
    public:
      GetVariableTraverser(std::vector<VarT> *output);
      void traverse(const TType &type, const TString &name);
  
    protected:
      // May be overloaded
      virtual void visitVariable(VarT *newVar) {}
  
    private:
      std::stack<std::vector<VarT> *> mOutputStack;
  };
  
  struct GetInterfaceBlockFieldTraverser : public GetVariableTraverser<InterfaceBlockField>
  {
    public:
      GetInterfaceBlockFieldTraverser(std::vector<InterfaceBlockField> *output, bool isRowMajorMatrix);
  
    private:
      virtual void visitVariable(InterfaceBlockField *newField);
  
      bool mIsRowMajorMatrix;
  };
  
  }
  
  #endif // COMPILER_UTIL_H
  

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