cc/resources/zero_copy_tile_task_worker_pool.h

   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_ZERO_COPY_TILE_TASK_WORKER_POOL_H_
   6 #define CC_RESOURCES_ZERO_COPY_TILE_TASK_WORKER_POOL_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "base/values.h"
  10 #include "cc/resources/tile_task_runner.h"
  11 #include "cc/resources/tile_task_worker_pool.h"
  12
  13 namespace base {
  14 namespace debug {
  15 class ConvertableToTraceFormat;
  16 }
  17 }
  18
  19 namespace cc {
  20 class ResourceProvider;
  21
  22 class CC_EXPORT ZeroCopyTileTaskWorkerPool : public TileTaskWorkerPool,
  23                                              public TileTaskRunner,
  24                                              public TileTaskClient {
  25  public:
  26   ~ZeroCopyTileTaskWorkerPool() override;
  27
  28   static scoped_ptr<TileTaskWorkerPool> Create(
  29       base::SequencedTaskRunner* task_runner,
  30       TaskGraphRunner* task_graph_runner,
  31       ResourceProvider* resource_provider);
  32
  33   // Overridden from TileTaskWorkerPool:
  34   TileTaskRunner* AsTileTaskRunner() override;
  35
  36   // Overridden from TileTaskRunner:
  37   void SetClient(TileTaskRunnerClient* client) override;
  38   void Shutdown() override;
  39   void ScheduleTasks(TileTaskQueue* queue) override;
  40   void CheckForCompletedTasks() override;
  41
  42   // Overridden from TileTaskClient:
  43   scoped_ptr<RasterBuffer> AcquireBufferForRaster(
  44       const Resource* resource) override;
  45   void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
  46
  47  protected:
  48   ZeroCopyTileTaskWorkerPool(base::SequencedTaskRunner* task_runner,
  49                              TaskGraphRunner* task_graph_runner,
  50                              ResourceProvider* resource_provider);
  51
  52  private:
  53   void OnTaskSetFinished(TaskSet task_set);
  54   scoped_refptr<base::debug::ConvertableToTraceFormat> StateAsValue() const;
  55
  56   scoped_refptr<base::SequencedTaskRunner> task_runner_;
  57   TaskGraphRunner* task_graph_runner_;
  58   const NamespaceToken namespace_token_;
  59   TileTaskRunnerClient* client_;
  60   ResourceProvider* resource_provider_;
  61
  62   TaskSetCollection tasks_pending_;
  63
  64   scoped_refptr<TileTask> task_set_finished_tasks_[kNumberOfTaskSets];
  65
  66   // Task graph used when scheduling tasks and vector used to gather
  67   // completed tasks.
  68   TaskGraph graph_;
  69   Task::Vector completed_tasks_;
  70
  71   base::WeakPtrFactory<ZeroCopyTileTaskWorkerPool>
  72       task_set_finished_weak_ptr_factory_;
  73
  74   DISALLOW_COPY_AND_ASSIGN(ZeroCopyTileTaskWorkerPool);
  75 };
  76
  77 }  // namespace cc
  78
  79 #endif  // CC_RESOURCES_ZERO_COPY_TILE_TASK_WORKER_POOL_H_