cc/raster/one_copy_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_ONE_COPY_TILE_TASK_WORKER_POOL_H_
   6 #define CC_RASTER_ONE_COPY_TILE_TASK_WORKER_POOL_H_
   7
   8 #include <set>
   9
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/synchronization/lock.h"
  12 #include "base/time/time.h"
  13 #include "base/trace_event/memory_dump_provider.h"
  14 #include "base/values.h"
  15 #include "cc/base/scoped_ptr_deque.h"
  16 #include "cc/output/context_provider.h"
  17 #include "cc/raster/tile_task_runner.h"
  18 #include "cc/raster/tile_task_worker_pool.h"
  19 #include "cc/resources/resource_provider.h"
  20
  21 namespace base {
  22 namespace trace_event {
  23 class ConvertableToTraceFormat;
  24 class TracedValue;
  25 }
  26 }
  27
  28 namespace gpu {
  29 namespace gles2 {
  30 class GLES2Interface;
  31 }
  32 }
  33
  34 namespace cc {
  35 class ResourcePool;
  36
  37 class CC_EXPORT OneCopyTileTaskWorkerPool
  38     : public TileTaskWorkerPool,
  39       public TileTaskRunner,
  40       public TileTaskClient,
  41       public base::trace_event::MemoryDumpProvider {
  42  public:
  43   ~OneCopyTileTaskWorkerPool() override;
  44
  45   static scoped_ptr<TileTaskWorkerPool> Create(
  46       base::SequencedTaskRunner* task_runner,
  47       TaskGraphRunner* task_graph_runner,
  48       ContextProvider* context_provider,
  49       ResourceProvider* resource_provider,
  50       int max_copy_texture_chromium_size,
  51       bool use_persistent_gpu_memory_buffers,
  52       int max_staging_buffers);
  53
  54   // Overridden from TileTaskWorkerPool:
  55   TileTaskRunner* AsTileTaskRunner() override;
  56
  57   // Overridden from TileTaskRunner:
  58   void SetClient(TileTaskRunnerClient* client) override;
  59   void Shutdown() override;
  60   void ScheduleTasks(TileTaskQueue* queue) override;
  61   void CheckForCompletedTasks() override;
  62   ResourceFormat GetResourceFormat() const override;
  63   bool GetResourceRequiresSwizzle() const override;
  64
  65   // Overridden from TileTaskClient:
  66   scoped_ptr<RasterBuffer> AcquireBufferForRaster(
  67       const Resource* resource,
  68       uint64_t resource_content_id,
  69       uint64_t previous_content_id) override;
  70   void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override;
  71
  72   // Overridden from base::trace_event::MemoryDumpProvider:
  73   bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
  74                     base::trace_event::ProcessMemoryDump* pmd) override;
  75
  76   // Playback raster source and copy result into |resource|.
  77   void PlaybackAndCopyOnWorkerThread(
  78       const Resource* resource,
  79       const ResourceProvider::ScopedWriteLockGL* resource_lock,
  80       const RasterSource* raster_source,
  81       const gfx::Rect& raster_full_rect,
  82       const gfx::Rect& raster_dirty_rect,
  83       float scale,
  84       bool include_images,
  85       uint64_t resource_content_id,
  86       uint64_t previous_content_id);
  87
  88  protected:
  89   OneCopyTileTaskWorkerPool(base::SequencedTaskRunner* task_runner,
  90                             TaskGraphRunner* task_graph_runner,
  91                             ResourceProvider* resource_provider,
  92                             int max_copy_texture_chromium_size,
  93                             bool use_persistent_gpu_memory_buffers,
  94                             int max_staging_buffers);
  95
  96  private:
  97   struct StagingBuffer {
  98     explicit StagingBuffer(const gfx::Size& size);
  99     ~StagingBuffer();
 100
 101     void DestroyGLResources(gpu::gles2::GLES2Interface* gl);
 102     void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
 103                       ResourceFormat format,
 104                       bool is_free) const;
 105
 106     const gfx::Size size;
 107     scoped_ptr<gfx::GpuMemoryBuffer> gpu_memory_buffer;
 108     base::TimeTicks last_usage;
 109     unsigned texture_id;
 110     unsigned image_id;
 111     unsigned query_id;
 112     uint64_t content_id;
 113   };
 114
 115   scoped_ptr<StagingBuffer> AcquireStagingBuffer(const Resource* resource,
 116                                                  uint64_t previous_content_id);
 117   base::TimeTicks GetUsageTimeForLRUBuffer();
 118   void ScheduleReduceMemoryUsage();
 119   void ReduceMemoryUsage();
 120   void ReleaseBuffersNotUsedSince(base::TimeTicks time);
 121
 122   void OnTaskSetFinished(TaskSet task_set);
 123   scoped_refptr<base::trace_event::ConvertableToTraceFormat> StateAsValue()
 124       const;
 125   void StagingStateAsValueInto(
 126       base::trace_event::TracedValue* staging_state) const;
 127
 128   scoped_refptr<base::SequencedTaskRunner> task_runner_;
 129   TaskGraphRunner* task_graph_runner_;
 130   const NamespaceToken namespace_token_;
 131   TileTaskRunnerClient* client_;
 132   ResourceProvider* const resource_provider_;
 133   const int max_bytes_per_copy_operation_;
 134   const bool use_persistent_gpu_memory_buffers_;
 135   TaskSetCollection tasks_pending_;
 136   scoped_refptr<TileTask> task_set_finished_tasks_[kNumberOfTaskSets];
 137
 138   // Task graph used when scheduling tasks and vector used to gather
 139   // completed tasks.
 140   TaskGraph graph_;
 141   Task::Vector completed_tasks_;
 142
 143   mutable base::Lock lock_;
 144   // |lock_| must be acquired when accessing the following members.
 145   using StagingBufferSet = std::set<StagingBuffer*>;
 146   StagingBufferSet buffers_;
 147   using StagingBufferDeque = ScopedPtrDeque<StagingBuffer>;
 148   StagingBufferDeque free_buffers_;
 149   StagingBufferDeque busy_buffers_;
 150   int bytes_scheduled_since_last_flush_;
 151   size_t max_staging_buffers_;
 152   const base::TimeDelta staging_buffer_expiration_delay_;
 153   bool reduce_memory_usage_pending_;
 154   base::Closure reduce_memory_usage_callback_;
 155
 156   base::WeakPtrFactory<OneCopyTileTaskWorkerPool> weak_ptr_factory_;
 157   // "raster finished" tasks need their own factory as they need to be
 158   // canceled when ScheduleTasks() is called.
 159   base::WeakPtrFactory<OneCopyTileTaskWorkerPool>
 160       task_set_finished_weak_ptr_factory_;
 161
 162   DISALLOW_COPY_AND_ASSIGN(OneCopyTileTaskWorkerPool);
 163 };
 164
 165 }  // namespace cc
 166
 167 #endif  // CC_RASTER_ONE_COPY_TILE_TASK_WORKER_POOL_H_