cc: Renaming Rasterizer and RasterWorkerPool interfaces

cc/resources/one_copy_raster_worker_pool.h

-// 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_ONE_COPY_RASTER_WORKER_POOL_H_
-#define CC_RESOURCES_ONE_COPY_RASTER_WORKER_POOL_H_
-
-#include "base/memory/weak_ptr.h"
-#include "base/synchronization/lock.h"
-#include "base/values.h"
-#include "cc/base/scoped_ptr_deque.h"
-#include "cc/output/context_provider.h"
-#include "cc/resources/raster_worker_pool.h"
-#include "cc/resources/rasterizer.h"
-#include "cc/resources/resource_provider.h"
-
-namespace base {
-namespace debug {
-class ConvertableToTraceFormat;
-class TracedValue;
-}
-}
-
-namespace cc {
-class ResourcePool;
-class ScopedResource;
-
-typedef int64 CopySequenceNumber;
-
-class CC_EXPORT OneCopyRasterWorkerPool : public RasterWorkerPool,
-                                          public Rasterizer,
-                                          public RasterizerTaskClient {
- public:
-  ~OneCopyRasterWorkerPool() override;
-
-  static scoped_ptr<RasterWorkerPool> Create(
-      base::SequencedTaskRunner* task_runner,
-      TaskGraphRunner* task_graph_runner,
-      ContextProvider* context_provider,
-      ResourceProvider* resource_provider,
-      ResourcePool* resource_pool);
-
-  // Overridden from RasterWorkerPool:
-  Rasterizer* AsRasterizer() override;
-
-  // Overridden from Rasterizer:
-  void SetClient(RasterizerClient* client) override;
-  void Shutdown() override;
-  void ScheduleTasks(RasterTaskQueue* queue) override;
-  void CheckForCompletedTasks() override;
-
-  // Overridden from RasterizerTaskClient:
-  scoped_ptr<RasterBuffer> AcquireBufferForRaster(
-      const Resource* resource) override;
-  void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
-
-  // Playback raster source and schedule copy of |src| resource to |dst|
-  // resource. Returns a non-zero sequence number for this copy operation.
-  CopySequenceNumber PlaybackAndScheduleCopyOnWorkerThread(
-      scoped_ptr<ResourceProvider::ScopedWriteLockGpuMemoryBuffer> write_lock,
-      scoped_ptr<ScopedResource> src,
-      const Resource* dst,
-      const RasterSource* raster_source,
-      const gfx::Rect& rect,
-      float scale);
-
-  // Issues copy operations until |sequence| has been processed. This will
-  // return immediately if |sequence| has already been processed.
-  void AdvanceLastIssuedCopyTo(CopySequenceNumber sequence);
-
- protected:
-  OneCopyRasterWorkerPool(base::SequencedTaskRunner* task_runner,
-                          TaskGraphRunner* task_graph_runner,
-                          ContextProvider* context_provider,
-                          ResourceProvider* resource_provider,
-                          ResourcePool* resource_pool);
-
- private:
-  struct CopyOperation {
-    typedef ScopedPtrDeque<CopyOperation> Deque;
-
-    CopyOperation(
-        scoped_ptr<ResourceProvider::ScopedWriteLockGpuMemoryBuffer> write_lock,
-        scoped_ptr<ScopedResource> src,
-        const Resource* dst);
-    ~CopyOperation();
-
-    scoped_ptr<ResourceProvider::ScopedWriteLockGpuMemoryBuffer> write_lock;
-    scoped_ptr<ScopedResource> src;
-    const Resource* dst;
-  };
-
-  void OnRasterFinished(TaskSet task_set);
-  void AdvanceLastFlushedCopyTo(CopySequenceNumber sequence);
-  void IssueCopyOperations(int64 count);
-  void ScheduleCheckForCompletedCopyOperationsWithLockAcquired(
-      bool wait_if_needed);
-  void CheckForCompletedCopyOperations(bool wait_if_needed);
-  scoped_refptr<base::debug::ConvertableToTraceFormat> StateAsValue() const;
-  void StagingStateAsValueInto(base::debug::TracedValue* staging_state) const;
-
-  scoped_refptr<base::SequencedTaskRunner> task_runner_;
-  TaskGraphRunner* task_graph_runner_;
-  const NamespaceToken namespace_token_;
-  RasterizerClient* client_;
-  ContextProvider* context_provider_;
-  ResourceProvider* resource_provider_;
-  ResourcePool* resource_pool_;
-  TaskSetCollection raster_pending_;
-  scoped_refptr<RasterizerTask> raster_finished_tasks_[kNumberOfTaskSets];
-  CopySequenceNumber last_issued_copy_operation_;
-  CopySequenceNumber last_flushed_copy_operation_;
-
-  // Task graph used when scheduling tasks and vector used to gather
-  // completed tasks.
-  TaskGraph graph_;
-  Task::Vector completed_tasks_;
-
-  base::Lock lock_;
-  // |lock_| must be acquired when accessing the following members.
-  base::ConditionVariable copy_operation_count_cv_;
-  size_t scheduled_copy_operation_count_;
-  size_t issued_copy_operation_count_;
-  CopyOperation::Deque pending_copy_operations_;
-  CopySequenceNumber next_copy_operation_sequence_;
-  bool check_for_completed_copy_operations_pending_;
-  base::TimeTicks last_check_for_completed_copy_operations_time_;
-  bool shutdown_;
-
-  base::WeakPtrFactory<OneCopyRasterWorkerPool> weak_ptr_factory_;
-  // "raster finished" tasks need their own factory as they need to be
-  // canceled when ScheduleTasks() is called.
-  base::WeakPtrFactory<OneCopyRasterWorkerPool>
-      raster_finished_weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(OneCopyRasterWorkerPool);
-};
-
-}  // namespace cc
-
-#endif  // CC_RESOURCES_ONE_COPY_RASTER_WORKER_POOL_H_