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

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• Hash : e469de8a
  Author :
  Date : 2017-07-04T11:58:35
  

  Refactor translator construction
  
  The patch adds functionality to determine whether compiler output belongs
  to the ESSL, GLSL, HLSL or Vulkan output family. The new functions can
  be now used in other parts of the compiler in which code paths are
  selected based on the compiler output.
  
  BUG=angleproject:2062
  TEST=angle_unittests
  
  Change-Id: I45ccf63f0a756c60df47a679c2da9f60856d5918
  Reviewed-on: https://chromium-review.googlesource.com/558990
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  

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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"
  
  // 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);
  
  namespace sh
  {
  class TSymbolTable;
  
  float NumericLexFloat32OutOfRangeToInfinity(const std::string &str);
  
  // strtof_clamp is like strtof but
  //   1. it forces C locale, i.e. forcing '.' as decimal point.
  //   2. it sets the value to infinity if overflow happens.
  //   3. str should be guaranteed to be in the valid format for a floating point number as defined
  //      by the grammar in the ESSL 3.00.6 spec section 4.1.4.
  // Return false if overflow happens.
  bool strtof_clamp(const std::string &str, float *value);
  
  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);
  
  TType GetShaderVariableBasicType(const sh::ShaderVariable &var);
  
  bool IsBuiltinOutputVariable(TQualifier qualifier);
  bool IsBuiltinFragmentInputVariable(TQualifier qualifier);
  bool CanBeInvariantESSL1(TQualifier qualifier);
  bool CanBeInvariantESSL3OrGreater(TQualifier qualifier);
  bool IsOutputESSL(ShShaderOutput output);
  bool IsOutputGLSL(ShShaderOutput output);
  bool IsOutputHLSL(ShShaderOutput output);
  bool IsOutputVulkan(ShShaderOutput output);
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_UTIL_H_
  

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