1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_GL_GL_STATE_RESTORER_H_ 6 #define UI_GL_GL_STATE_RESTORER_H_ 7 8 #include "base/basictypes.h" 9 #include "ui/gl/gl_export.h" 10 11 namespace gfx { 12 13 // An interface for Restoring GL State. 14 // This will expand over time to provide an more optimizable implementation. 15 class GL_EXPORT GLStateRestorer { 16 public: 17 GLStateRestorer(); 18 virtual ~GLStateRestorer(); 19 20 virtual bool IsInitialized() = 0; 21 virtual void RestoreState(const GLStateRestorer* prev_state) = 0; 22 virtual void RestoreAllTextureUnitBindings() = 0; 23 virtual void RestoreActiveTextureUnitBinding(unsigned int target) = 0; 24 virtual void RestoreFramebufferBindings() = 0; 25 26 DISALLOW_COPY_AND_ASSIGN(GLStateRestorer); 27 }; 28 29 } // namespace gfx 30 31 #endif // UI_GL_GL_STATE_RESTORER_H_ 32
