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

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• Hash : 91dbc188
  Author :
  Date : 2015-06-17T16:19:29
  

  Enable needed extensions in generated GLSL shaders and call them when possible.
  
  reland: use the defined preprocessor function.
  
  BUG=angleproject:1044
  
  Change-Id: I6171708a2d55ec085ba2c598a1a863779842da6c
  Reviewed-on: https://chromium-review.googlesource.com/311270
  Tryjob-Request: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/compiler/translator/ExtensionGLSL.h

• //
  // Copyright (c) 2015 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.
  //
  // ExtensionGLSL.h: Defines the TExtensionGLSL class that tracks GLSL extension requirements of
  // shaders.
  
  #ifndef COMPILER_TRANSLATOR_EXTENSIONGLSL_H_
  #define COMPILER_TRANSLATOR_EXTENSIONGLSL_H_
  
  #include <set>
  #include <string>
  
  #include "compiler/translator/IntermNode.h"
  
  // Traverses the intermediate tree to determine which GLSL extensions are required
  // to support the shader.
  class TExtensionGLSL : public TIntermTraverser
  {
    public:
      TExtensionGLSL(ShShaderOutput output);
  
      const std::set<std::string> &getEnabledExtensions() const;
      const std::set<std::string> &getRequiredExtensions() const;
  
      bool visitUnary(Visit visit, TIntermUnary *node) override;
      bool visitAggregate(Visit visit, TIntermAggregate *node) override;
  
    private:
      void checkOperator(TIntermOperator *node);
  
      int mTargetVersion;
  
      std::set<std::string> mEnabledExtensions;
      std::set<std::string> mRequiredExtensions;
  };
  
  #endif  // COMPILER_TRANSLATOR_EXTENSIONGLSL_H_
  

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