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// Copyright 2013 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_PIXEL_BUFFER_RASTER_WORKER_POOL_H_
#define CC_RESOURCES_PIXEL_BUFFER_RASTER_WORKER_POOL_H_
#include <deque>
#include <set>
#include <vector>
#include "base/containers/hash_tables.h"
#include "cc/resources/raster_worker_pool.h"
namespace cc {
class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
public:
virtual ~PixelBufferRasterWorkerPool();
static scoped_ptr<RasterWorkerPool> Create(
ResourceProvider* resource_provider,
size_t num_threads,
size_t max_transfer_buffer_usage_bytes) {
return make_scoped_ptr<RasterWorkerPool>(
new PixelBufferRasterWorkerPool(resource_provider,
num_threads,
max_transfer_buffer_usage_bytes));
}
// Overridden from WorkerPool:
virtual void Shutdown() OVERRIDE;
virtual void CheckForCompletedTasks() OVERRIDE;
// Overridden from RasterWorkerPool:
virtual void ScheduleTasks(RasterTask::Queue* queue) OVERRIDE;
virtual ResourceFormat GetResourceFormat() const OVERRIDE;
virtual void OnRasterTasksFinished() OVERRIDE;
virtual void OnRasterTasksRequiredForActivationFinished() OVERRIDE;
private:
PixelBufferRasterWorkerPool(ResourceProvider* resource_provider,
size_t num_threads,
size_t max_transfer_buffer_usage_bytes);
void FlushUploads();
void CheckForCompletedUploads();
void ScheduleCheckForCompletedRasterTasks();
void CheckForCompletedRasterTasks();
void ScheduleMoreTasks();
void OnRasterTaskCompleted(
scoped_refptr<internal::RasterWorkerPoolTask> task,
bool was_canceled,
bool needs_upload);
void DidCompleteRasterTask(internal::RasterWorkerPoolTask* task);
unsigned PendingRasterTaskCount() const;
bool HasPendingTasks() const;
bool HasPendingTasksRequiredForActivation() const;
const char* StateName() const;
scoped_ptr<base::Value> StateAsValue() const;
scoped_ptr<base::Value> ThrottleStateAsValue() const;
bool shutdown_;
TaskMap pixel_buffer_tasks_;
typedef std::deque<scoped_refptr<internal::RasterWorkerPoolTask> > TaskDeque;
TaskDeque tasks_with_pending_upload_;
TaskDeque completed_tasks_;
typedef base::hash_set<internal::RasterWorkerPoolTask*> TaskSet;
TaskSet tasks_required_for_activation_;
size_t scheduled_raster_task_count_;
size_t bytes_pending_upload_;
size_t max_bytes_pending_upload_;
bool has_performed_uploads_since_last_flush_;
base::CancelableClosure check_for_completed_raster_tasks_callback_;
bool check_for_completed_raster_tasks_pending_;
bool should_notify_client_if_no_tasks_are_pending_;
bool should_notify_client_if_no_tasks_required_for_activation_are_pending_;
ResourceFormat format_;
DISALLOW_COPY_AND_ASSIGN(PixelBufferRasterWorkerPool);
};
} // namespace cc
#endif // CC_RESOURCES_PIXEL_BUFFER_RASTER_WORKER_POOL_H_
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