| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_GL_GL_FENCE_H_ |
| #define UI_GL_GL_FENCE_H_ |
| |
| #include "base/macros.h" |
| #include "ui/gl/gl_export.h" |
| |
| namespace gl { |
| |
| class GL_EXPORT GLFence { |
| public: |
| GLFence(); |
| virtual ~GLFence(); |
| |
| static bool IsSupported(); |
| static GLFence* Create(); |
| |
| virtual bool HasCompleted() = 0; |
| virtual void ClientWait() = 0; |
| |
| // Will block the server if supported, but might fall back to blocking the |
| // client. |
| virtual void ServerWait() = 0; |
| |
| // Returns true if re-setting state is supported. |
| virtual bool ResetSupported(); |
| |
| // Resets the fence to the original state. |
| virtual void ResetState(); |
| |
| // Loses the reference to the fence. Useful if the context is lost. |
| virtual void Invalidate(); |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(GLFence); |
| }; |
| |
| } // namespace gl |
| |
| #endif // UI_GL_GL_FENCE_H_ |