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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_SHARE_GROUP_H_ | 5 #ifndef UI_GL_GL_SHARE_GROUP_H_ |
6 #define UI_GL_GL_SHARE_GROUP_H_ | 6 #define UI_GL_GL_SHARE_GROUP_H_ |
7 | 7 |
8 #include <set> | 8 #include <set> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "ui/gl/gl_export.h" | 12 #include "ui/gl/gl_export.h" |
13 | 13 |
14 namespace gfx { | 14 namespace gfx { |
15 | 15 |
16 class GLContext; | 16 class GLContext; |
17 | 17 |
18 // A group of GL contexts that share an ID namespace. | 18 // A group of GL contexts that share an ID namespace. |
19 class GL_EXPORT GLShareGroup : public base::RefCounted<GLShareGroup> { | 19 // TODO(mgiuca): Avoid using UnsafeRefCounted. http://crbug.com/469952. |
| 20 class GL_EXPORT GLShareGroup : public base::UnsafeRefCounted<GLShareGroup> { |
20 public: | 21 public: |
21 GLShareGroup(); | 22 GLShareGroup(); |
22 | 23 |
23 // These two should only be called from the constructor and destructor of | 24 // These two should only be called from the constructor and destructor of |
24 // GLContext. | 25 // GLContext. |
25 void AddContext(GLContext* context); | 26 void AddContext(GLContext* context); |
26 void RemoveContext(GLContext* context); | 27 void RemoveContext(GLContext* context); |
27 | 28 |
28 // Returns a handle to any initialized context in the share group or NULL if | 29 // Returns a handle to any initialized context in the share group or NULL if |
29 // there are no initialized contexts in the share group. | 30 // there are no initialized contexts in the share group. |
30 void* GetHandle(); | 31 void* GetHandle(); |
31 | 32 |
32 // Returns a pointer to any initialized context in the share group | 33 // Returns a pointer to any initialized context in the share group |
33 // or NULL if there are no initialized contexts in the share group. | 34 // or NULL if there are no initialized contexts in the share group. |
34 GLContext* GetContext(); | 35 GLContext* GetContext(); |
35 | 36 |
36 // Sets and returns the unique shared GL context. Used for context | 37 // Sets and returns the unique shared GL context. Used for context |
37 // virtualization. | 38 // virtualization. |
38 void SetSharedContext(GLContext* context); | 39 void SetSharedContext(GLContext* context); |
39 GLContext* GetSharedContext(); | 40 GLContext* GetSharedContext(); |
40 | 41 |
41 #if defined(OS_MACOSX) | 42 #if defined(OS_MACOSX) |
42 // Sets and returns the ID of the renderer that all contexts in this share | 43 // Sets and returns the ID of the renderer that all contexts in this share |
43 // group should be on. | 44 // group should be on. |
44 void SetRendererID(int renderer_id); | 45 void SetRendererID(int renderer_id); |
45 int GetRendererID(); | 46 int GetRendererID(); |
46 #endif | 47 #endif |
47 | 48 |
48 private: | 49 private: |
49 friend class base::RefCounted<GLShareGroup>; | 50 friend class base::UnsafeRefCounted<GLShareGroup>; |
50 | 51 |
51 ~GLShareGroup(); | 52 ~GLShareGroup(); |
52 | 53 |
53 // References to GLContext are by raw pointer to avoid a reference count | 54 // References to GLContext are by raw pointer to avoid a reference count |
54 // cycle. | 55 // cycle. |
55 typedef std::set<GLContext*> ContextSet; | 56 typedef std::set<GLContext*> ContextSet; |
56 ContextSet contexts_; | 57 ContextSet contexts_; |
57 | 58 |
58 GLContext* shared_context_; | 59 GLContext* shared_context_; |
59 | 60 |
60 #if defined(OS_MACOSX) | 61 #if defined(OS_MACOSX) |
61 int renderer_id_; | 62 int renderer_id_; |
62 #endif | 63 #endif |
63 | 64 |
64 DISALLOW_COPY_AND_ASSIGN(GLShareGroup); | 65 DISALLOW_COPY_AND_ASSIGN(GLShareGroup); |
65 }; | 66 }; |
66 | 67 |
67 } // namespace gfx | 68 } // namespace gfx |
68 | 69 |
69 #endif // UI_GL_GL_SHARE_GROUP_H_ | 70 #endif // UI_GL_GL_SHARE_GROUP_H_ |
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