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

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• Hash : ff526f14
  Author :
  Date : 2017-06-30T12:26:54
  

  Fix variable vs. function name conflict in HLSL output
  
  GLSL ES spec accepts the case where an initializer of a variable calls
  a function with the same name as the variable. The HLSL compiler
  doesn't accept that. Work around this limitation in the HLSL compiler
  by disambiguating user-defined functions from variables with a
  different prefix.
  
  BUG=angleproject:2095
  TEST=angle_end2end_test, angle_unittests
  
  Change-Id: I41b32a3fcc6fd4c548e8dc3aa680d1b07fcf8719
  Reviewed-on: https://chromium-review.googlesource.com/557872
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  

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• src/compiler/translator/UtilsHLSL.h

• //
  // Copyright (c) 2014 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.
  //
  // UtilsHLSL.h:
  //   Utility methods for GLSL to HLSL translation.
  //
  
  #ifndef COMPILER_TRANSLATOR_UTILSHLSL_H_
  #define COMPILER_TRANSLATOR_UTILSHLSL_H_
  
  #include <vector>
  #include "compiler/translator/IntermNode.h"
  #include "compiler/translator/Types.h"
  
  #include "angle_gl.h"
  
  class TName;
  
  namespace sh
  {
  
  // Unique combinations of HLSL Texture type and HLSL Sampler type.
  enum HLSLTextureSamplerGroup
  {
      // Regular samplers
      HLSL_TEXTURE_2D,
      HLSL_TEXTURE_MIN = HLSL_TEXTURE_2D,
  
      HLSL_TEXTURE_CUBE,
      HLSL_TEXTURE_2D_ARRAY,
      HLSL_TEXTURE_3D,
      HLSL_TEXTURE_2D_MS,
      HLSL_TEXTURE_2D_INT4,
      HLSL_TEXTURE_3D_INT4,
      HLSL_TEXTURE_2D_ARRAY_INT4,
      HLSL_TEXTURE_2D_MS_INT4,
      HLSL_TEXTURE_2D_UINT4,
      HLSL_TEXTURE_3D_UINT4,
      HLSL_TEXTURE_2D_ARRAY_UINT4,
      HLSL_TEXTURE_2D_MS_UINT4,
  
      // Comparison samplers
  
      HLSL_TEXTURE_2D_COMPARISON,
      HLSL_TEXTURE_CUBE_COMPARISON,
      HLSL_TEXTURE_2D_ARRAY_COMPARISON,
  
      HLSL_COMPARISON_SAMPLER_GROUP_BEGIN = HLSL_TEXTURE_2D_COMPARISON,
      HLSL_COMPARISON_SAMPLER_GROUP_END   = HLSL_TEXTURE_2D_ARRAY_COMPARISON,
  
      HLSL_TEXTURE_UNKNOWN,
      HLSL_TEXTURE_MAX = HLSL_TEXTURE_UNKNOWN
  };
  
  HLSLTextureSamplerGroup TextureGroup(const TBasicType type);
  TString TextureString(const HLSLTextureSamplerGroup type);
  TString TextureString(const TBasicType type);
  TString TextureGroupSuffix(const HLSLTextureSamplerGroup type);
  TString TextureGroupSuffix(const TBasicType type);
  TString TextureTypeSuffix(const TBasicType type);
  TString SamplerString(const TBasicType type);
  TString SamplerString(HLSLTextureSamplerGroup type);
  // Adds a prefix to user-defined names to avoid naming clashes.
  TString Decorate(const TString &string);
  TString DecorateVariableIfNeeded(const TName &name);
  TString DecorateFunctionIfNeeded(const TName &name);
  TString DecorateField(const TString &string, const TStructure &structure);
  TString DecoratePrivate(const TString &privateText);
  TString TypeString(const TType &type);
  TString StructNameString(const TStructure &structure);
  TString QualifiedStructNameString(const TStructure &structure,
                                    bool useHLSLRowMajorPacking,
                                    bool useStd140Packing);
  TString InterpolationString(TQualifier qualifier);
  TString QualifierString(TQualifier qualifier);
  // Parameters may need to be included in function names to disambiguate between overloaded
  // functions.
  TString DisambiguateFunctionName(const TIntermSequence *parameters);
  }
  
  #endif  // COMPILER_TRANSLATOR_UTILSHLSL_H_
  

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