src/cc/resources/direct_raster_worker_pool.h

   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_DIRECT_RASTER_WORKER_POOL_H_
   6 #define CC_RESOURCES_DIRECT_RASTER_WORKER_POOL_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "cc/resources/raster_worker_pool.h"
  10 #include "cc/resources/rasterizer.h"
  11
  12 namespace cc {
  13 class ContextProvider;
  14 class ResourceProvider;
  15
  16 class CC_EXPORT DirectRasterWorkerPool : public RasterWorkerPool,
  17                                          public Rasterizer,
  18                                          public RasterizerTaskClient {
  19  public:
  20   virtual ~DirectRasterWorkerPool();
  21
  22   static scoped_ptr<RasterWorkerPool> Create(
  23       base::SequencedTaskRunner* task_runner,
  24       ResourceProvider* resource_provider,
  25       ContextProvider* context_provider);
  26
  27   // Overridden from RasterWorkerPool:
  28   virtual Rasterizer* AsRasterizer() OVERRIDE;
  29
  30   // Overridden from Rasterizer:
  31   virtual void SetClient(RasterizerClient* client) OVERRIDE;
  32   virtual void Shutdown() OVERRIDE;
  33   virtual void ScheduleTasks(RasterTaskQueue* queue) OVERRIDE;
  34   virtual void CheckForCompletedTasks() OVERRIDE;
  35
  36   // Overridden from RasterizerTaskClient:
  37   virtual SkCanvas* AcquireCanvasForRaster(RasterTask* task) OVERRIDE;
  38   virtual void ReleaseCanvasForRaster(RasterTask* task) OVERRIDE;
  39
  40  private:
  41   DirectRasterWorkerPool(base::SequencedTaskRunner* task_runner,
  42                          ResourceProvider* resource_provider,
  43                          ContextProvider* context_provider);
  44
  45   void OnRasterFinished();
  46   void OnRasterRequiredForActivationFinished();
  47   void ScheduleRunTasksOnOriginThread();
  48   void RunTasksOnOriginThread();
  49   void RunTaskOnOriginThread(RasterizerTask* task);
  50
  51   scoped_refptr<base::SequencedTaskRunner> task_runner_;
  52   scoped_ptr<TaskGraphRunner> task_graph_runner_;
  53   const NamespaceToken namespace_token_;
  54   RasterizerClient* client_;
  55   ResourceProvider* resource_provider_;
  56   ContextProvider* context_provider_;
  57
  58   bool run_tasks_on_origin_thread_pending_;
  59
  60   bool raster_tasks_pending_;
  61   bool raster_tasks_required_for_activation_pending_;
  62
  63   base::WeakPtrFactory<DirectRasterWorkerPool>
  64       raster_finished_weak_ptr_factory_;
  65
  66   scoped_refptr<RasterizerTask> raster_finished_task_;
  67   scoped_refptr<RasterizerTask> raster_required_for_activation_finished_task_;
  68
  69   // Task graph used when scheduling tasks and vector used to gather
  70   // completed tasks.
  71   TaskGraph graph_;
  72   Task::Vector completed_tasks_;
  73
  74   base::WeakPtrFactory<DirectRasterWorkerPool> weak_ptr_factory_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(DirectRasterWorkerPool);
  77 };
  78
  79 }  // namespace cc
  80
  81 #endif  // CC_RESOURCES_DIRECT_RASTER_WORKER_POOL_H_