kc3-lang/angle/src/compiler/translator/TranslatorMetalDirect/GuardFragDepthWrite.h

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• Hash : 45237a04
  Author :
  Date : 2022-01-11T00:14:01
  

  Metal: Fix undefined behavior of depth write
  
  Writing to an unbound depth attachment is undefined behavior in Metal.
  Fix this by emitting a function constant to guard depth buffer use
  in fragment shaders.
  
  Bug: angleproject:6865
  Change-Id: Id7c10d0aeb349aacfe09c397bc292a71199ab50a
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3380304
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Commit-Queue: Kenneth Russell <kbr@chromium.org>
  

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• src/compiler/translator/TranslatorMetalDirect/GuardFragDepthWrite.h

• //
  // Copyright 2022 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_TRANSLATORMETALDIRECT_GUARDFRAGDEPTHWRITE_H_
  #define COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_GUARDFRAGDEPTHWRITE_H_
  
  #include "compiler/translator/Compiler.h"
  #include "compiler/translator/TranslatorMetalDirect/ProgramPrelude.h"
  #include "compiler/translator/TranslatorMetalDirect/SymbolEnv.h"
  
  namespace sh
  {
  
  ANGLE_NO_DISCARD bool GuardFragDepthWrite(TCompiler &compiler, TIntermBlock &root);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_GUARDFRAGDEPTHWRITE_H_
  

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