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1 // Copyright 2010 The Chromium Authors. All rights reserved. | 1 // Copyright 2010 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 CC_LAYERS_TEXTURE_LAYER_H_ | 5 #ifndef CC_LAYERS_TEXTURE_LAYER_H_ |
6 #define CC_LAYERS_TEXTURE_LAYER_H_ | 6 #define CC_LAYERS_TEXTURE_LAYER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
11 #include "base/synchronization/lock.h" | 11 #include "base/synchronization/lock.h" |
12 #include "base/threading/thread_checker.h" | 12 #include "base/threading/thread_checker.h" |
13 #include "cc/base/cc_export.h" | 13 #include "cc/base/cc_export.h" |
14 #include "cc/layers/layer.h" | 14 #include "cc/layers/layer.h" |
15 #include "cc/resources/texture_mailbox.h" | 15 #include "cc/resources/texture_mailbox.h" |
16 | 16 |
| 17 namespace gpu { |
| 18 struct SyncToken; |
| 19 } |
| 20 |
17 namespace cc { | 21 namespace cc { |
18 class BlockingTaskRunner; | 22 class BlockingTaskRunner; |
19 class SingleReleaseCallback; | 23 class SingleReleaseCallback; |
20 class SingleReleaseCallbackImpl; | 24 class SingleReleaseCallbackImpl; |
21 class TextureLayerClient; | 25 class TextureLayerClient; |
22 | 26 |
23 // A Layer containing a the rendered output of a plugin instance. | 27 // A Layer containing a the rendered output of a plugin instance. |
24 class CC_EXPORT TextureLayer : public Layer { | 28 class CC_EXPORT TextureLayer : public Layer { |
25 public: | 29 public: |
26 class CC_EXPORT TextureMailboxHolder | 30 class CC_EXPORT TextureMailboxHolder |
27 : public base::RefCountedThreadSafe<TextureMailboxHolder> { | 31 : public base::RefCountedThreadSafe<TextureMailboxHolder> { |
28 public: | 32 public: |
29 class CC_EXPORT MainThreadReference { | 33 class CC_EXPORT MainThreadReference { |
30 public: | 34 public: |
31 explicit MainThreadReference(TextureMailboxHolder* holder); | 35 explicit MainThreadReference(TextureMailboxHolder* holder); |
32 ~MainThreadReference(); | 36 ~MainThreadReference(); |
33 TextureMailboxHolder* holder() { return holder_.get(); } | 37 TextureMailboxHolder* holder() { return holder_.get(); } |
34 | 38 |
35 private: | 39 private: |
36 scoped_refptr<TextureMailboxHolder> holder_; | 40 scoped_refptr<TextureMailboxHolder> holder_; |
37 DISALLOW_COPY_AND_ASSIGN(MainThreadReference); | 41 DISALLOW_COPY_AND_ASSIGN(MainThreadReference); |
38 }; | 42 }; |
39 | 43 |
40 const TextureMailbox& mailbox() const { return mailbox_; } | 44 const TextureMailbox& mailbox() const { return mailbox_; } |
41 void Return(uint32 sync_point, bool is_lost); | 45 void Return(const gpu::SyncToken& sync_token, bool is_lost); |
42 | 46 |
43 // Gets a ReleaseCallback that can be called from another thread. Note: the | 47 // Gets a ReleaseCallback that can be called from another thread. Note: the |
44 // caller must ensure the callback is called. | 48 // caller must ensure the callback is called. |
45 scoped_ptr<SingleReleaseCallbackImpl> GetCallbackForImplThread(); | 49 scoped_ptr<SingleReleaseCallbackImpl> GetCallbackForImplThread(); |
46 | 50 |
47 protected: | 51 protected: |
48 friend class TextureLayer; | 52 friend class TextureLayer; |
49 | 53 |
50 // Protected visiblity so only TextureLayer and unit tests can create these. | 54 // Protected visiblity so only TextureLayer and unit tests can create these. |
51 static scoped_ptr<MainThreadReference> Create( | 55 static scoped_ptr<MainThreadReference> Create( |
52 const TextureMailbox& mailbox, | 56 const TextureMailbox& mailbox, |
53 scoped_ptr<SingleReleaseCallback> release_callback); | 57 scoped_ptr<SingleReleaseCallback> release_callback); |
54 virtual ~TextureMailboxHolder(); | 58 virtual ~TextureMailboxHolder(); |
55 | 59 |
56 private: | 60 private: |
57 friend class base::RefCountedThreadSafe<TextureMailboxHolder>; | 61 friend class base::RefCountedThreadSafe<TextureMailboxHolder>; |
58 friend class MainThreadReference; | 62 friend class MainThreadReference; |
59 explicit TextureMailboxHolder( | 63 explicit TextureMailboxHolder( |
60 const TextureMailbox& mailbox, | 64 const TextureMailbox& mailbox, |
61 scoped_ptr<SingleReleaseCallback> release_callback); | 65 scoped_ptr<SingleReleaseCallback> release_callback); |
62 | 66 |
63 void InternalAddRef(); | 67 void InternalAddRef(); |
64 void InternalRelease(); | 68 void InternalRelease(); |
65 void ReturnAndReleaseOnImplThread( | 69 void ReturnAndReleaseOnImplThread( |
66 uint32 sync_point, | 70 const gpu::SyncToken& sync_token, |
67 bool is_lost, | 71 bool is_lost, |
68 BlockingTaskRunner* main_thread_task_runner); | 72 BlockingTaskRunner* main_thread_task_runner); |
69 | 73 |
70 // These members are only accessed on the main thread, or on the impl thread | 74 // These members are only accessed on the main thread, or on the impl thread |
71 // during commit where the main thread is blocked. | 75 // during commit where the main thread is blocked. |
72 unsigned internal_references_; | 76 unsigned internal_references_; |
73 TextureMailbox mailbox_; | 77 TextureMailbox mailbox_; |
74 scoped_ptr<SingleReleaseCallback> release_callback_; | 78 scoped_ptr<SingleReleaseCallback> release_callback_; |
75 | 79 |
76 // This lock guards the sync_point_ and is_lost_ fields because they can be | 80 // This lock guards the sync_token_ and is_lost_ fields because they can be |
77 // accessed on both the impl and main thread. We do this to ensure that the | 81 // accessed on both the impl and main thread. We do this to ensure that the |
78 // values of these fields are well-ordered such that the last call to | 82 // values of these fields are well-ordered such that the last call to |
79 // ReturnAndReleaseOnImplThread() defines their values. | 83 // ReturnAndReleaseOnImplThread() defines their values. |
80 base::Lock arguments_lock_; | 84 base::Lock arguments_lock_; |
81 uint32 sync_point_; | 85 gpu::SyncToken sync_token_; |
82 bool is_lost_; | 86 bool is_lost_; |
83 base::ThreadChecker main_thread_checker_; | 87 base::ThreadChecker main_thread_checker_; |
84 DISALLOW_COPY_AND_ASSIGN(TextureMailboxHolder); | 88 DISALLOW_COPY_AND_ASSIGN(TextureMailboxHolder); |
85 }; | 89 }; |
86 | 90 |
87 // Used when mailbox names are specified instead of texture IDs. | 91 // Used when mailbox names are specified instead of texture IDs. |
88 static scoped_refptr<TextureLayer> CreateForMailbox( | 92 static scoped_refptr<TextureLayer> CreateForMailbox( |
89 const LayerSettings& settings, | 93 const LayerSettings& settings, |
90 TextureLayerClient* client); | 94 TextureLayerClient* client); |
91 | 95 |
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164 bool blend_background_color_; | 168 bool blend_background_color_; |
165 | 169 |
166 scoped_ptr<TextureMailboxHolder::MainThreadReference> holder_ref_; | 170 scoped_ptr<TextureMailboxHolder::MainThreadReference> holder_ref_; |
167 bool needs_set_mailbox_; | 171 bool needs_set_mailbox_; |
168 | 172 |
169 DISALLOW_COPY_AND_ASSIGN(TextureLayer); | 173 DISALLOW_COPY_AND_ASSIGN(TextureLayer); |
170 }; | 174 }; |
171 | 175 |
172 } // namespace cc | 176 } // namespace cc |
173 #endif // CC_LAYERS_TEXTURE_LAYER_H_ | 177 #endif // CC_LAYERS_TEXTURE_LAYER_H_ |
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