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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CC_RESOURCES_ONE_COPY_TILE_TASK_WORKER_POOL_H_ | |
6 #define CC_RESOURCES_ONE_COPY_TILE_TASK_WORKER_POOL_H_ | |
7 | |
8 #include "base/memory/weak_ptr.h" | |
9 #include "base/synchronization/lock.h" | |
10 #include "base/values.h" | |
11 #include "cc/base/scoped_ptr_deque.h" | |
12 #include "cc/output/context_provider.h" | |
13 #include "cc/resources/resource_provider.h" | |
14 #include "cc/resources/tile_task_runner.h" | |
15 #include "cc/resources/tile_task_worker_pool.h" | |
16 | |
17 namespace base { | |
18 namespace trace_event { | |
19 class ConvertableToTraceFormat; | |
20 class TracedValue; | |
21 } | |
22 } | |
23 | |
24 namespace cc { | |
25 class ResourcePool; | |
26 class ScopedResource; | |
27 | |
28 typedef int64 CopySequenceNumber; | |
29 | |
30 class CC_EXPORT OneCopyTileTaskWorkerPool : public TileTaskWorkerPool, | |
31 public TileTaskRunner, | |
32 public TileTaskClient { | |
33 public: | |
34 ~OneCopyTileTaskWorkerPool() override; | |
35 | |
36 static scoped_ptr<TileTaskWorkerPool> Create( | |
37 base::SequencedTaskRunner* task_runner, | |
38 TaskGraphRunner* task_graph_runner, | |
39 ContextProvider* context_provider, | |
40 ResourceProvider* resource_provider, | |
41 ResourcePool* resource_pool); | |
42 | |
43 // Overridden from TileTaskWorkerPool: | |
44 TileTaskRunner* AsTileTaskRunner() override; | |
45 | |
46 // Overridden from TileTaskRunner: | |
47 void SetClient(TileTaskRunnerClient* client) override; | |
48 void Shutdown() override; | |
49 void ScheduleTasks(TileTaskQueue* queue) override; | |
50 void CheckForCompletedTasks() override; | |
51 ResourceFormat GetResourceFormat() override; | |
52 | |
53 // Overridden from TileTaskClient: | |
54 scoped_ptr<RasterBuffer> AcquireBufferForRaster( | |
55 const Resource* resource) override; | |
56 void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override; | |
57 | |
58 // Playback raster source and schedule copy of |src| resource to |dst| | |
59 // resource. Returns a non-zero sequence number for this copy operation. | |
60 CopySequenceNumber PlaybackAndScheduleCopyOnWorkerThread( | |
61 scoped_ptr<ResourceProvider::ScopedWriteLockGpuMemoryBuffer> write_lock, | |
62 scoped_ptr<ScopedResource> src, | |
63 const Resource* dst, | |
64 const RasterSource* raster_source, | |
65 const gfx::Rect& rect, | |
66 float scale); | |
67 | |
68 // Issues copy operations until |sequence| has been processed. This will | |
69 // return immediately if |sequence| has already been processed. | |
70 void AdvanceLastIssuedCopyTo(CopySequenceNumber sequence); | |
71 | |
72 protected: | |
73 OneCopyTileTaskWorkerPool(base::SequencedTaskRunner* task_runner, | |
74 TaskGraphRunner* task_graph_runner, | |
75 ContextProvider* context_provider, | |
76 ResourceProvider* resource_provider, | |
77 ResourcePool* resource_pool); | |
78 | |
79 private: | |
80 struct CopyOperation { | |
81 typedef ScopedPtrDeque<CopyOperation> Deque; | |
82 | |
83 CopyOperation( | |
84 scoped_ptr<ResourceProvider::ScopedWriteLockGpuMemoryBuffer> write_lock, | |
85 scoped_ptr<ScopedResource> src, | |
86 const Resource* dst); | |
87 ~CopyOperation(); | |
88 | |
89 scoped_ptr<ResourceProvider::ScopedWriteLockGpuMemoryBuffer> write_lock; | |
90 scoped_ptr<ScopedResource> src; | |
91 const Resource* dst; | |
92 }; | |
93 | |
94 void OnTaskSetFinished(TaskSet task_set); | |
95 void AdvanceLastFlushedCopyTo(CopySequenceNumber sequence); | |
96 void IssueCopyOperations(int64 count); | |
97 void ScheduleCheckForCompletedCopyOperationsWithLockAcquired( | |
98 bool wait_if_needed); | |
99 void CheckForCompletedCopyOperations(bool wait_if_needed); | |
100 scoped_refptr<base::trace_event::ConvertableToTraceFormat> StateAsValue() | |
101 const; | |
102 void StagingStateAsValueInto( | |
103 base::trace_event::TracedValue* staging_state) const; | |
104 | |
105 scoped_refptr<base::SequencedTaskRunner> task_runner_; | |
106 TaskGraphRunner* task_graph_runner_; | |
107 const NamespaceToken namespace_token_; | |
108 TileTaskRunnerClient* client_; | |
109 ContextProvider* context_provider_; | |
110 ResourceProvider* resource_provider_; | |
111 ResourcePool* resource_pool_; | |
112 TaskSetCollection tasks_pending_; | |
113 scoped_refptr<TileTask> task_set_finished_tasks_[kNumberOfTaskSets]; | |
114 CopySequenceNumber last_issued_copy_operation_; | |
115 CopySequenceNumber last_flushed_copy_operation_; | |
116 | |
117 // Task graph used when scheduling tasks and vector used to gather | |
118 // completed tasks. | |
119 TaskGraph graph_; | |
120 Task::Vector completed_tasks_; | |
121 | |
122 base::Lock lock_; | |
123 // |lock_| must be acquired when accessing the following members. | |
124 base::ConditionVariable copy_operation_count_cv_; | |
125 size_t scheduled_copy_operation_count_; | |
126 size_t issued_copy_operation_count_; | |
127 CopyOperation::Deque pending_copy_operations_; | |
128 CopySequenceNumber next_copy_operation_sequence_; | |
129 bool check_for_completed_copy_operations_pending_; | |
130 base::TimeTicks last_check_for_completed_copy_operations_time_; | |
131 bool shutdown_; | |
132 | |
133 base::WeakPtrFactory<OneCopyTileTaskWorkerPool> weak_ptr_factory_; | |
134 // "raster finished" tasks need their own factory as they need to be | |
135 // canceled when ScheduleTasks() is called. | |
136 base::WeakPtrFactory<OneCopyTileTaskWorkerPool> | |
137 task_set_finished_weak_ptr_factory_; | |
138 | |
139 DISALLOW_COPY_AND_ASSIGN(OneCopyTileTaskWorkerPool); | |
140 }; | |
141 | |
142 } // namespace cc | |
143 | |
144 #endif // CC_RESOURCES_ONE_COPY_TILE_TASK_WORKER_POOL_H_ | |
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