kc3-lang/angle/src/compiler/translator/DeferGlobalInitializers.h

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• Hash : a16a84f3
  Author :
  Date : 2017-09-12T13:49:18
  

  GLSL: Fix initializing globals declared after main()
  
  Initialize globals in a separate function instead of a block in the
  beginning of main(). This way it works also for globals declared after
  main().
  
  BUG=chromium:764036
  TEST=angle_end2end_tests
  
  Change-Id: I2fcbb97d046589301287757dc3dde5471172a3f6
  Reviewed-on: https://chromium-review.googlesource.com/663158
  Commit-Queue: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  

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• src/compiler/translator/DeferGlobalInitializers.h

• //
  // Copyright (c) 2016 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.
  //
  // DeferGlobalInitializers is an AST traverser that moves global initializers into a separate
  // function that is called in the beginning of main(). This enables initialization of globals with
  // uniforms or non-constant globals, as allowed by the WebGL spec. Some initializers referencing
  // non-constants may need to be unfolded into if statements in HLSL - this kind of steps should be
  // done after DeferGlobalInitializers is run. Note that it's important that the function definition
  // is at the end of the shader, as some globals may be declared after main().
  //
  // It can also initialize all uninitialized globals.
  //
  
  #ifndef COMPILER_TRANSLATOR_DEFERGLOBALINITIALIZERS_H_
  #define COMPILER_TRANSLATOR_DEFERGLOBALINITIALIZERS_H_
  
  namespace sh
  {
  
  class TIntermBlock;
  class TSymbolTable;
  
  void DeferGlobalInitializers(TIntermBlock *root,
                               bool initializeUninitializedGlobals,
                               TSymbolTable *symbolTable);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_DEFERGLOBALINITIALIZERS_H_
  

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