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, size_t num_threads) {
  18     return make_scoped_ptr<RasterWorkerPool>(
  19         new ImageRasterWorkerPool(resource_provider, num_threads));
  20   }
  21
  22   // Overridden from RasterWorkerPool:
  23   virtual void ScheduleTasks(RasterTask::Queue* queue) OVERRIDE;
  24   virtual ResourceFormat GetResourceFormat() const OVERRIDE;
  25   virtual void OnRasterTasksFinished() OVERRIDE;
  26   virtual void OnRasterTasksRequiredForActivationFinished() OVERRIDE;
  27
  28  private:
  29   ImageRasterWorkerPool(ResourceProvider* resource_provider,
  30                         size_t num_threads);
  31
  32   void OnRasterTaskCompleted(
  33       scoped_refptr<internal::RasterWorkerPoolTask> task, bool was_canceled);
  34
  35   scoped_ptr<base::Value> StateAsValue() const;
  36
  37   static void CreateGraphNodeForImageTask(
  38       internal::WorkerPoolTask* image_task,
  39       const TaskVector& decode_tasks,
  40       unsigned priority,
  41       bool is_required_for_activation,
  42       internal::GraphNode* raster_required_for_activation_finished_node,
  43       internal::GraphNode* raster_finished_node,
  44       TaskGraph* graph);
  45
  46   TaskMap image_tasks_;
  47
  48   bool raster_tasks_pending_;
  49   bool raster_tasks_required_for_activation_pending_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(ImageRasterWorkerPool);
  52 };
  53
  54 }  // namespace cc
  55
  56 #endif  // CC_RESOURCES_IMAGE_RASTER_WORKER_POOL_H_