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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_GFX_GL_GL_SHARE_GROUP_H_ | 5 #ifndef UI_GFX_GL_GL_SHARE_GROUP_H_ |
| 6 #define UI_GFX_GL_GL_SHARE_GROUP_H_ | 6 #define UI_GFX_GL_GL_SHARE_GROUP_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include <set> | 9 #include <set> |
| 10 | 10 |
| 11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
| 12 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" |
| 13 #include "ui/gfx/gl/gl_export.h" | |
| 14 | 13 |
| 15 namespace gfx { | 14 namespace gfx { |
| 16 | 15 |
| 17 class GLContext; | 16 class GLContext; |
| 18 | 17 |
| 19 // A group of GL contexts that share an ID namespace. | 18 // A group of GL contexts that share an ID namespace. |
| 20 class GL_EXPORT GLShareGroup : public base::RefCounted<GLShareGroup> { | 19 class GLShareGroup : public base::RefCounted<GLShareGroup> { |
| 21 public: | 20 public: |
| 22 GLShareGroup(); | 21 GLShareGroup(); |
| 23 | 22 |
| 24 // These two should only be called from the constructor and destructor of | 23 // These two should only be called from the constructor and destructor of |
| 25 // GLContext. | 24 // GLContext. |
| 26 void AddContext(GLContext* context); | 25 void AddContext(GLContext* context); |
| 27 void RemoveContext(GLContext* context); | 26 void RemoveContext(GLContext* context); |
| 28 | 27 |
| 29 // Returns a handle to any initialized context in the share group or NULL if | 28 // Returns a handle to any initialized context in the share group or NULL if |
| 30 // there are no initialized contexts in the share group. | 29 // there are no initialized contexts in the share group. |
| 31 void* GetHandle(); | 30 void* GetHandle(); |
| 32 | 31 |
| 33 private: | 32 private: |
| 34 friend class base::RefCounted<GLShareGroup>; | 33 friend class base::RefCounted<GLShareGroup>; |
| 35 ~GLShareGroup(); | 34 ~GLShareGroup(); |
| 36 | 35 |
| 37 // References to GLContext are by raw pointer to avoid a reference count | 36 // References to GLContext are by raw pointer to avoid a reference count |
| 38 // cycle. | 37 // cycle. |
| 39 typedef std::set<GLContext*> ContextSet; | 38 typedef std::set<GLContext*> ContextSet; |
| 40 ContextSet contexts_; | 39 ContextSet contexts_; |
| 41 DISALLOW_COPY_AND_ASSIGN(GLShareGroup); | 40 DISALLOW_COPY_AND_ASSIGN(GLShareGroup); |
| 42 }; | 41 }; |
| 43 | 42 |
| 44 } // namespace gfx | 43 } // namespace gfx |
| 45 | 44 |
| 46 #endif // UI_GFX_GL_GL_SHARE_GROUP_H_ | 45 #endif // UI_GFX_GL_GL_SHARE_GROUP_H_ |
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