src/cc/resources/image_raster_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_IMAGE_RASTER_WORKER_POOL_H_
   6 #define CC_RESOURCES_IMAGE_RASTER_WORKER_POOL_H_
   7
   8 #include "cc/resources/raster_worker_pool.h"
   9
  10 namespace cc {
  11
  12 class CC_EXPORT ImageRasterWorkerPool : public RasterWorkerPool {
  13  public:
  14   virtual ~ImageRasterWorkerPool();
  15
  16   static scoped_ptr<RasterWorkerPool> Create(
  17       ResourceProvider* resource_provider,
  18       unsigned texture_target);
  19
  20   // Overridden from RasterWorkerPool:
  21   virtual void ScheduleTasks(RasterTask::Queue* queue) OVERRIDE;
  22   virtual unsigned GetResourceTarget() const OVERRIDE;
  23   virtual ResourceFormat GetResourceFormat() const OVERRIDE;
  24   virtual void CheckForCompletedTasks() OVERRIDE;
  25
  26   // Overridden from internal::WorkerPoolTaskClient:
  27   virtual SkCanvas* AcquireCanvasForRaster(internal::RasterWorkerPoolTask* task)
  28       OVERRIDE;
  29   virtual void OnRasterCompleted(internal::RasterWorkerPoolTask* task,
  30                                  const PicturePileImpl::Analysis& analysis)
  31       OVERRIDE;
  32   virtual void OnImageDecodeCompleted(internal::WorkerPoolTask* task) OVERRIDE {
  33   }
  34
  35  protected:
  36   ImageRasterWorkerPool(internal::TaskGraphRunner* task_graph_runner,
  37                         ResourceProvider* resource_provider,
  38                         unsigned texture_target);
  39
  40  private:
  41   // Overridden from RasterWorkerPool:
  42   virtual void OnRasterTasksFinished() OVERRIDE;
  43   virtual void OnRasterTasksRequiredForActivationFinished() OVERRIDE;
  44
  45   scoped_ptr<base::Value> StateAsValue() const;
  46
  47   const unsigned texture_target_;
  48
  49   RasterTask::Queue raster_tasks_;
  50
  51   bool raster_tasks_pending_;
  52   bool raster_tasks_required_for_activation_pending_;
  53
  54   // Task graph used when scheduling tasks and vector used to gather
  55   // completed tasks.
  56   internal::TaskGraph graph_;
  57   internal::Task::Vector completed_tasks_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(ImageRasterWorkerPool);
  60 };
  61
  62 }  // namespace cc
  63
  64 #endif  // CC_RESOURCES_IMAGE_RASTER_WORKER_POOL_H_