kc3-lang/angle/src/compiler/translator/tree_ops/spirv/RewriteSamplerExternalTexelFetch.h

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• Hash : 671f55d8
  Author :
  Date : 2025-04-03T22:54:44
  

  Vulkan: Fix texelFetch(externalSampler) behavior
  
  GLES expects YUV decoding to happen with texelFetch when an external
  sampler is used, but texelFetch's translation (OpImageFetch) does not do
  such a thing.  A transformation is added to replace that with a texture
  call at the right coordinate.
  
  Bug: angleproject:405149439
  Change-Id: I3a8d07a6399705ec07718b38085ee4bc1ad2af6c
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6431570
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  

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• src/compiler/translator/tree_ops/spirv/RewriteSamplerExternalTexelFetch.h

• //
  // Copyright 2025 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.
  //
  // RewriteSamplerExternalTexelFetch: Rewrite texelFetch() for external samplers to texture() so that
  // yuv decoding happens according to the sampler.
  //
  
  #ifndef COMPILER_TRANSLATOR_TREEOPS_SPIRV_REWRITESAMPLEREXTERNALTEXELFETCH_H_
  #define COMPILER_TRANSLATOR_TREEOPS_SPIRV_REWRITESAMPLEREXTERNALTEXELFETCH_H_
  
  #include "common/angleutils.h"
  #include "compiler/translator/Compiler.h"
  
  namespace sh
  {
  class TCompiler;
  class TIntermBlock;
  class TSymbolTable;
  
  [[nodiscard]] bool RewriteSamplerExternalTexelFetch(TCompiler *compiler,
                                                      TIntermBlock *root,
                                                      TSymbolTable *symbolTable);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_SPIRV_REWRITESAMPLEREXTERNALTEXELFETCH_H_
  

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