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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_RESOURCES_GPU_RASTER_WORKER_POOL_H_
#define CC_RESOURCES_GPU_RASTER_WORKER_POOL_H_
#include "base/memory/weak_ptr.h"
#include "cc/resources/raster_worker_pool.h"
#include "cc/resources/rasterizer.h"
namespace cc {
class ContextProvider;
class ResourceProvider;
class CC_EXPORT GpuRasterWorkerPool : public RasterWorkerPool,
public Rasterizer,
public RasterizerTaskClient {
public:
virtual ~GpuRasterWorkerPool();
static scoped_ptr<RasterWorkerPool> Create(
base::SequencedTaskRunner* task_runner,
ContextProvider* context_provider,
ResourceProvider* resource_provider);
// Overridden from RasterWorkerPool:
virtual Rasterizer* AsRasterizer() OVERRIDE;
// Overridden from Rasterizer:
virtual void SetClient(RasterizerClient* client) OVERRIDE;
virtual void Shutdown() OVERRIDE;
virtual void ScheduleTasks(RasterTaskQueue* queue) OVERRIDE;
virtual void CheckForCompletedTasks() OVERRIDE;
// Overridden from RasterizerTaskClient:
virtual SkCanvas* AcquireCanvasForRaster(RasterTask* task) OVERRIDE;
virtual void ReleaseCanvasForRaster(RasterTask* task) OVERRIDE;
private:
GpuRasterWorkerPool(base::SequencedTaskRunner* task_runner,
ContextProvider* context_provider,
ResourceProvider* resource_provider);
void OnRasterFinished();
void OnRasterRequiredForActivationFinished();
void ScheduleRunTasksOnOriginThread();
void RunTasksOnOriginThread();
void RunTaskOnOriginThread(RasterizerTask* task);
scoped_refptr<base::SequencedTaskRunner> task_runner_;
scoped_ptr<TaskGraphRunner> task_graph_runner_;
const NamespaceToken namespace_token_;
RasterizerClient* client_;
ContextProvider* context_provider_;
ResourceProvider* resource_provider_;
bool run_tasks_on_origin_thread_pending_;
bool raster_tasks_pending_;
bool raster_tasks_required_for_activation_pending_;
base::WeakPtrFactory<GpuRasterWorkerPool> raster_finished_weak_ptr_factory_;
scoped_refptr<RasterizerTask> raster_finished_task_;
scoped_refptr<RasterizerTask> raster_required_for_activation_finished_task_;
// Task graph used when scheduling tasks and vector used to gather
// completed tasks.
TaskGraph graph_;
Task::Vector completed_tasks_;
base::WeakPtrFactory<GpuRasterWorkerPool> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(GpuRasterWorkerPool);
};
} // namespace cc
#endif // CC_RESOURCES_GPU_RASTER_WORKER_POOL_H_
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