| // |
| // 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" |
| |
| namespace sh |
| { |
| |
| // 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; |
| }; |
| |
| } // namespace sh |
| |
| #endif // COMPILER_TRANSLATOR_EXTENSIONGLSL_H_ |