Line data    Source code

       1             : //
       2             : // Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
       3             : // Use of this source code is governed by a BSD-style license that can be
       4             : // found in the LICENSE file.
       5             : //
       6             : // ExtensionGLSL.h: Defines the TExtensionGLSL class that tracks GLSL extension requirements of
       7             : // shaders.
       8             : 
       9             : #ifndef COMPILER_TRANSLATOR_EXTENSIONGLSL_H_
      10             : #define COMPILER_TRANSLATOR_EXTENSIONGLSL_H_
      11             : 
      12             : #include <set>
      13             : #include <string>
      14             : 
      15             : #include "compiler/translator/IntermNode.h"
      16             : 
      17             : namespace sh
      18             : {
      19             : 
      20             : // Traverses the intermediate tree to determine which GLSL extensions are required
      21             : // to support the shader.
      22           0 : class TExtensionGLSL : public TIntermTraverser
      23             : {
      24             :   public:
      25             :     TExtensionGLSL(ShShaderOutput output);
      26             : 
      27             :     const std::set<std::string> &getEnabledExtensions() const;
      28             :     const std::set<std::string> &getRequiredExtensions() const;
      29             : 
      30             :     bool visitUnary(Visit visit, TIntermUnary *node) override;
      31             :     bool visitAggregate(Visit visit, TIntermAggregate *node) override;
      32             : 
      33             :   private:
      34             :     void checkOperator(TIntermOperator *node);
      35             : 
      36             :     int mTargetVersion;
      37             : 
      38             :     std::set<std::string> mEnabledExtensions;
      39             :     std::set<std::string> mRequiredExtensions;
      40             : };
      41             : 
      42             : }  // namespace sh
      43             : 
      44             : #endif  // COMPILER_TRANSLATOR_EXTENSIONGLSL_H_