kc3-lang/angle/src/compiler/translator/wgsl/OutputUniformBlocks.h

• Show log

  Commit

• Hash : a6ee4641
  Author :
  Date : 2024-09-25T11:41:47
  

  WGSL: Output default uniform block and accesses to it
  
  Default uniforms are put into a WGSL struct, and all accesses
  of those uniforms now output struct accesses.
  
  Similarly to I/O vars and builtins, these are outputted in a
  pre-pass, but in the future it might make sense to do what
  Vulkan does and do an AST transformation to put the default
  uniforms into a UBO which should be outputted similarly.
  
  This does not handle bool, matCx2, or array of element size < 16.
  
  Bug: angleproject:42267100
  Change-Id: If29e2895a8aba3212b581813316af87273c1515c
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5878759
  Reviewed-by: Liza Burakova <liza@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Matthew Denton <mpdenton@chromium.org>
  

Download

• src/compiler/translator/wgsl/OutputUniformBlocks.h

• //
  // Copyright 2024 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_WGSL_OUTPUT_UNIFORM_BLOCKS_H_
  #define COMPILER_TRANSLATOR_WGSL_OUTPUT_UNIFORM_BLOCKS_H_
  
  #include <variant>
  
  #include "compiler/translator/Compiler.h"
  #include "compiler/translator/IntermNode.h"
  
  namespace sh
  {
  
  const char kDefaultUniformBlockVarType[]     = "ANGLE_DefaultUniformBlock";
  const char kDefaultUniformBlockVarName[]     = "ANGLE_defaultUniformBlock";
  const uint32_t kDefaultUniformBlockBindGroup = 0;
  const uint32_t kDefaultUniformBlockBinding   = 0;
  
  // TODO(anglebug.com/42267100): for now does not output all uniform blocks,
  // just the default block. (fails for  matCx2, bool, and arrays with stride less than 16.)
  bool OutputUniformBlocks(TCompiler *compiler, TIntermBlock *root);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_WGSL_OUTPUT_UNIFORM_BLOCKS_H_
  

Download