kc3-lang/angle/src/compiler/translator/tree_util/ReplaceClipCullDistanceVariable.h

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• Hash : 9f09435b
  Author :
  Date : 2021-01-14T08:13:47
  

  Vulkan: Rename ReplaceClipDistanceVariable files
  
  With the addition of EXT_clip_cull_distance extension
  the files are renamed like so -
      ReplaceClipDistanceVariable.h   -> ReplaceClipCullDistanceVariable.h
      ReplaceClipDistanceVariable.cpp -> ReplaceClipCullDistanceVariable.cpp
  
  Bug: angleproject:5458
  Change-Id: I277b2d4b6eea6f2014e10acb251284a159292dbc
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2617572
  Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/compiler/translator/tree_util/ReplaceClipCullDistanceVariable.h

• //
  // Copyright 2020 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.
  //
  // ReplaceClipCullDistanceVariable.h: Find any references to gl_ClipDistance or gl_CullDistance and
  // replace it with ANGLEClipDistance or ANGLECullDistance.
  //
  
  #ifndef COMPILER_TRANSLATOR_TREEUTIL_REPLACECLIPCULLDISTANCEVARIABLE_H_
  #define COMPILER_TRANSLATOR_TREEUTIL_REPLACECLIPCULLDISTANCEVARIABLE_H_
  
  #include "GLSLANG/ShaderLang.h"
  #include "common/angleutils.h"
  
  namespace sh
  {
  
  struct InterfaceBlock;
  class TCompiler;
  class TIntermBlock;
  class TSymbolTable;
  class TIntermTyped;
  
  // Replace every gl_ClipDistance assignment with assignment to "ANGLEClipDistance",
  // then at the end of shader re-assign the values of this global variable to gl_ClipDistance.
  // This to solve some complex usages such as user passing gl_ClipDistance as output reference
  // to a function.
  // Furthermore, at the end shader, some disabled gl_ClipDistance[i] can be skipped from the
  // assignment.
  ANGLE_NO_DISCARD bool ReplaceClipDistanceAssignments(TCompiler *compiler,
                                                       TIntermBlock *root,
                                                       TSymbolTable *symbolTable,
                                                       const GLenum shaderType,
                                                       const TIntermTyped *clipDistanceEnableFlags);
  
  ANGLE_NO_DISCARD bool ReplaceCullDistanceAssignments(TCompiler *compiler,
                                                       TIntermBlock *root,
                                                       TSymbolTable *symbolTable,
                                                       const GLenum shaderType);
  }  // namespace sh
  
  #endif
  

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