kc3-lang/angle/src/compiler/translator/tree_ops/vulkan/EmulateAdvancedBlendEquations.h

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• Hash : c26011b8
  Author :
  Date : 2023-04-11T15:16:29
  

  Vulkan: Make advanced blend alpha div workaround permanent
  
  This workaround turned out to affect pretty much every driver, and
  numerous GL implementations were found to work around it similarly to
  ANGLE.  It seems like this workaround may only be necessary for
  colorburn and colordodge, but for now ANGLE applies it to all modes.
  
  Bug: b/274528004
  Bug: b/277777623
  Change-Id: Id555c981a9775f949a3022b7e92c755accea7cea
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4416158
  Reviewed-by: Yuxin Hu <yuxinhu@google.com>
  Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/compiler/translator/tree_ops/vulkan/EmulateAdvancedBlendEquations.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.
  //
  // EmulateAdvancedBlendEquations.h: Emulate advanced blend equations by implicitly reading back from
  // the color attachment (as an input attachment) and apply the equation function based on a uniform.
  //
  
  #ifndef COMPILER_TRANSLATOR_TREEOPS_VULKAN_EMULATEADVANCEDBLENDEQUATIONS_H_
  #define COMPILER_TRANSLATOR_TREEOPS_VULKAN_EMULATEADVANCEDBLENDEQUATIONS_H_
  
  #include "common/angleutils.h"
  #include "compiler/translator/Compiler.h"
  
  namespace sh
  {
  
  class TCompiler;
  class TIntermBlock;
  class TSymbolTable;
  class DriverUniform;
  struct ShaderVariable;
  class AdvancedBlendEquations;
  
  // Declares the necessary input attachment (if not already for framebuffer fetch), loads from it and
  // implements the specified advanced blend equation functions.  A driver uniform is used to select
  // which function to use at runtime.
  [[nodiscard]] bool EmulateAdvancedBlendEquations(
      TCompiler *compiler,
      TIntermBlock *root,
      TSymbolTable *symbolTable,
      const DriverUniform *driverUniforms,
      std::vector<ShaderVariable> *uniforms,
      const AdvancedBlendEquations &advancedBlendEquations);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_VULKAN_EMULATEADVANCEDBLENDEQUATIONS_H_
  

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