cc/raster/gpu_tile_task_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_RASTER_GPU_TILE_TASK_WORKER_POOL_H_
   6 #define CC_RASTER_GPU_TILE_TASK_WORKER_POOL_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "cc/raster/tile_task_runner.h"
  10 #include "cc/raster/tile_task_worker_pool.h"
  11
  12 namespace cc {
  13 class ContextProvider;
  14 class GpuRasterizer;
  15 class ResourceProvider;
  16
  17 class CC_EXPORT GpuTileTaskWorkerPool : public TileTaskWorkerPool,
  18                                         public TileTaskRunner,
  19                                         public TileTaskClient {
  20  public:
  21   ~GpuTileTaskWorkerPool() override;
  22
  23   static scoped_ptr<TileTaskWorkerPool> Create(
  24       base::SequencedTaskRunner* task_runner,
  25       TaskGraphRunner* task_graph_runner,
  26       ContextProvider* context_provider,
  27       ResourceProvider* resource_provider,
  28       bool use_distance_field_text,
  29       int gpu_rasterization_msaa_sample_count);
  30
  31   // Overridden from TileTaskWorkerPool:
  32   TileTaskRunner* AsTileTaskRunner() override;
  33
  34   // Overridden from TileTaskRunner:
  35   void SetClient(TileTaskRunnerClient* client) override;
  36   void Shutdown() override;
  37   void ScheduleTasks(TileTaskQueue* queue) override;
  38   void CheckForCompletedTasks() override;
  39   ResourceFormat GetResourceFormat() override;
  40
  41   // Overridden from TileTaskClient:
  42   scoped_ptr<RasterBuffer> AcquireBufferForRaster(
  43       const Resource* resource,
  44       uint64_t resource_content_id,
  45       uint64_t previous_content_id) override;
  46   void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
  47
  48  private:
  49   GpuTileTaskWorkerPool(base::SequencedTaskRunner* task_runner,
  50                         TaskGraphRunner* task_graph_runner,
  51                         ContextProvider* context_provider,
  52                         ResourceProvider* resource_provider,
  53                         bool use_distance_field_text,
  54                         int gpu_rasterization_msaa_sample_count);
  55
  56   void OnTaskSetFinished(TaskSet task_set);
  57   void CompleteTasks(const Task::Vector& tasks);
  58
  59   scoped_refptr<base::SequencedTaskRunner> task_runner_;
  60   TaskGraphRunner* task_graph_runner_;
  61   const NamespaceToken namespace_token_;
  62   TileTaskRunnerClient* client_;
  63   scoped_ptr<GpuRasterizer> rasterizer_;
  64
  65   TaskSetCollection tasks_pending_;
  66
  67   scoped_refptr<TileTask> task_set_finished_tasks_[kNumberOfTaskSets];
  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<GpuTileTaskWorkerPool>
  75       task_set_finished_weak_ptr_factory_;
  76
  77   base::WeakPtrFactory<GpuTileTaskWorkerPool> weak_ptr_factory_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(GpuTileTaskWorkerPool);
  80 };
  81
  82 }  // namespace cc
  83
  84 #endif  // CC_RASTER_GPU_TILE_TASK_WORKER_POOL_H_