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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_GL_GL_FENCE_H_ | 5 #ifndef UI_GL_GL_FENCE_H_ |
6 #define UI_GL_GL_FENCE_H_ | 6 #define UI_GL_GL_FENCE_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "ui/gl/gl_export.h" | 9 #include "ui/gl/gl_export.h" |
10 | 10 |
11 namespace gfx { | 11 namespace gfx { |
12 | 12 |
13 class GL_EXPORT GLFence { | 13 class GL_EXPORT GLFence { |
14 public: | 14 public: |
15 GLFence(); | 15 GLFence(); |
16 virtual ~GLFence(); | 16 virtual ~GLFence(); |
17 | 17 |
18 static GLFence* Create(); | 18 static GLFence* Create(); |
| 19 // Creates a fence that is not guaranteed to signal until the current context |
| 20 // is flushed. Use with caution. |
| 21 static GLFence* CreateWithoutFlush(); |
19 virtual bool HasCompleted() = 0; | 22 virtual bool HasCompleted() = 0; |
20 virtual void ClientWait() = 0; | 23 virtual void ClientWait() = 0; |
| 24 // Will block the server if supported, but might fall back to blocking the |
| 25 // client. |
| 26 virtual void ServerWait() = 0; |
21 | 27 |
22 protected: | 28 protected: |
23 static bool IsContextLost(); | 29 static bool IsContextLost(); |
24 | 30 |
25 private: | 31 private: |
26 DISALLOW_COPY_AND_ASSIGN(GLFence); | 32 DISALLOW_COPY_AND_ASSIGN(GLFence); |
27 }; | 33 }; |
28 | 34 |
29 } // namespace gfx | 35 } // namespace gfx |
30 | 36 |
31 #endif // UI_GL_GL_FENCE_H_ | 37 #endif // UI_GL_GL_FENCE_H_ |
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