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

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/compiler/translator/util.h

• //
  // Copyright 2002 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 <GLSLANG/ShaderLang.h>
  #include "angle_gl.h"
  
  #include "compiler/translator/HashNames.h"
  #include "compiler/translator/ImmutableString.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
  {
  
  // Keeps track of whether an implicit conversion from int/uint to float is possible.
  // These conversions are supported in desktop GLSL shaders only.
  // Also keeps track of which side of operation should be converted.
  enum class ImplicitTypeConversion
  {
      Same,
      Left,
      Right,
      Invalid,
  };
  
  class TIntermBlock;
  class TSymbolTable;
  class TIntermTyped;
  
  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);
  bool IsGeometryShaderInput(GLenum shaderType, TQualifier qualifier);
  InterpolationType GetInterpolationType(TQualifier qualifier);
  
  // Returns array brackets including size with outermost array size first, as specified in GLSL ES
  // 3.10 section 4.1.9.
  ImmutableString ArrayString(const TType &type);
  
  ImmutableString GetTypeName(const TType &type, ShHashFunction64 hashFunction, NameMap *nameMap);
  
  TType GetShaderVariableBasicType(const sh::ShaderVariable &var);
  
  void DeclareGlobalVariable(TIntermBlock *root, const TVariable *variable);
  
  bool IsBuiltinOutputVariable(TQualifier qualifier);
  bool IsBuiltinFragmentInputVariable(TQualifier qualifier);
  bool CanBeInvariantESSL1(TQualifier qualifier);
  bool CanBeInvariantESSL3OrGreater(TQualifier qualifier);
  bool IsShaderOutput(TQualifier qualifier);
  bool IsOutputESSL(ShShaderOutput output);
  bool IsOutputGLSL(ShShaderOutput output);
  bool IsOutputHLSL(ShShaderOutput output);
  bool IsOutputVulkan(ShShaderOutput output);
  
  bool IsInShaderStorageBlock(TIntermTyped *node);
  
  GLenum GetImageInternalFormatType(TLayoutImageInternalFormat iifq);
  // ESSL 1.00 shaders nest function body scope within function parameter scope
  bool IsSpecWithFunctionBodyNewScope(ShShaderSpec shaderSpec, int shaderVersion);
  
  // Helper functions for implicit conversions
  ImplicitTypeConversion GetConversion(TBasicType t1, TBasicType t2);
  
  bool IsValidImplicitConversion(ImplicitTypeConversion conversion, TOperator op);
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_UTIL_H_
  

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