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| 1 // Copyright 2013 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_RASTER_WORKER_POOL_H_ | |
| 6 #define CC_RESOURCES_RASTER_WORKER_POOL_H_ | |
| 7 | |
| 8 #include "cc/resources/rasterizer.h" | |
| 9 #include "ui/gfx/geometry/rect.h" | |
| 10 #include "ui/gfx/geometry/size.h" | |
| 11 | |
| 12 namespace base { | |
| 13 class SequencedTaskRunner; | |
| 14 } | |
| 15 | |
| 16 namespace cc { | |
| 17 class RasterSource; | |
| 18 class RenderingStatsInstrumentation; | |
| 19 | |
| 20 class CC_EXPORT RasterWorkerPool { | |
| 21 public: | |
| 22 static unsigned kBenchmarkRasterTaskPriority; | |
| 23 static unsigned kRasterFinishedTaskPriority; | |
| 24 static unsigned kRasterTaskPriorityBase; | |
| 25 | |
| 26 RasterWorkerPool(); | |
| 27 virtual ~RasterWorkerPool(); | |
| 28 | |
| 29 // Set the number of threads to use for the global TaskGraphRunner instance. | |
| 30 // This can only be called once and must be called prior to | |
| 31 // GetNumRasterThreads(). | |
| 32 static void SetNumRasterThreads(int num_threads); | |
| 33 | |
| 34 // Returns the number of threads used for the global TaskGraphRunner instance. | |
| 35 static int GetNumRasterThreads(); | |
| 36 | |
| 37 // Returns a pointer to the global TaskGraphRunner instance. | |
| 38 static TaskGraphRunner* GetTaskGraphRunner(); | |
| 39 | |
| 40 // Utility function that can be used to create a "raster finished" task that | |
| 41 // posts |callback| to |task_runner| when run. | |
| 42 static scoped_refptr<RasterizerTask> CreateRasterFinishedTask( | |
| 43 base::SequencedTaskRunner* task_runner, | |
| 44 const base::Closure& callback); | |
| 45 | |
| 46 // Utility function that can be used to call ::ScheduleOnOriginThread() for | |
| 47 // each task in |graph|. | |
| 48 static void ScheduleTasksOnOriginThread(RasterizerTaskClient* client, | |
| 49 TaskGraph* graph); | |
| 50 | |
| 51 // Utility function that can be used to build a task graph. Inserts a node | |
| 52 // that represents |task| in |graph|. See TaskGraph definition for valid | |
| 53 // |priority| values. | |
| 54 static void InsertNodeForTask(TaskGraph* graph, | |
| 55 RasterizerTask* task, | |
| 56 unsigned priority, | |
| 57 size_t dependencies); | |
| 58 | |
| 59 // Utility function that can be used to build a task graph. Inserts nodes that | |
| 60 // represent |task| and all its image decode dependencies in |graph|. | |
| 61 static void InsertNodesForRasterTask( | |
| 62 TaskGraph* graph, | |
| 63 RasterTask* task, | |
| 64 const ImageDecodeTask::Vector& decode_tasks, | |
| 65 unsigned priority); | |
| 66 | |
| 67 // Utility function that will create a temporary bitmap and copy pixels to | |
| 68 // |memory| when necessary. | |
| 69 static void PlaybackToMemory(void* memory, | |
| 70 ResourceFormat format, | |
| 71 const gfx::Size& size, | |
| 72 int stride, | |
| 73 const RasterSource* raster_source, | |
| 74 const gfx::Rect& rect, | |
| 75 float scale); | |
| 76 | |
| 77 // Type-checking downcast routine. | |
| 78 virtual Rasterizer* AsRasterizer() = 0; | |
| 79 }; | |
| 80 | |
| 81 } // namespace cc | |
| 82 | |
| 83 #endif // CC_RESOURCES_RASTER_WORKER_POOL_H_ | |
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Chromium Code Reviews
Issue 786583002:
cc: Renaming Rasterizer and RasterWorkerPool interfaces (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master