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

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• Hash : 60015ff6
  Author :
  Date : 2021-01-14T02:03:07
  

  Vulkan: Redo RewriteStructSamplers
  
  This transformation is split into two.  The first transformation solely
  takes out the samplers out of structs, and potentially generates array
  of array of samplers.  A second transformation is added that takes any
  array of array of opaque uniforms and flattens it.
  
  A follow up change will simplify RewriteAtomicCounters which also
  handles array of arrays (which is no longer possible), and removes
  dependency on shaderStorageBufferArrayDynamicIndexing.
  
  Bug: angleproject:2703
  Bug: angleproject:3881
  Bug: angleproject:4071
  Bug: angleproject:4211
  Change-Id: I352bb2bbe65ac49f4d7d753c0ba3160fa3cc925a
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2628138
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/compiler/translator/tree_ops/vulkan/RewriteStructSamplers.h

• //
  // Copyright 2018 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.
  //
  // RewriteStructSamplers: Extract structs from samplers.
  //
  // This traverser is designed to strip out samplers from structs. It moves them into separate
  // uniform sampler declarations. This allows the struct to be stored in the default uniform block.
  // This transformation requires MonomorphizeUnsupportedFunctionsInVulkanGLSL to have been run so it
  // wouldn't need to deal with functions that are passed such structs.
  //
  // For example:
  //   struct S { sampler2D samp; int i; };
  //   uniform S uni;
  // Is rewritten as:
  //   struct S { int i; };
  //   uniform S uni;
  //   uniform sampler2D uni_i;
  
  #ifndef COMPILER_TRANSLATOR_TREEOPS_VULKAN_REWRITESTRUCTSAMPLERS_H_
  #define COMPILER_TRANSLATOR_TREEOPS_VULKAN_REWRITESTRUCTSAMPLERS_H_
  
  #include "common/angleutils.h"
  
  namespace sh
  {
  class TCompiler;
  class TIntermBlock;
  class TSymbolTable;
  
  ANGLE_NO_DISCARD bool RewriteStructSamplers(TCompiler *compiler,
                                              TIntermBlock *root,
                                              TSymbolTable *symbolTable,
                                              int *removedUniformsCountOut);
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_VULKAN_REWRITESTRUCTSAMPLERS_H_
  

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