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| 1 // Copyright 2016 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_STAGING_BUFFER_POOL_H_ |
| 6 #define CC_RASTER_STAGING_BUFFER_POOL_H_ |
| 7 |
| 8 #include <stdint.h> |
| 9 |
| 10 #include <deque> |
| 11 #include <set> |
| 12 |
| 13 #include "base/macros.h" |
| 14 #include "base/memory/weak_ptr.h" |
| 15 #include "base/synchronization/lock.h" |
| 16 #include "base/time/time.h" |
| 17 #include "base/trace_event/memory_dump_provider.h" |
| 18 #include "cc/output/context_provider.h" |
| 19 #include "cc/resources/resource_provider.h" |
| 20 |
| 21 namespace gpu { |
| 22 namespace gles2 { |
| 23 class GLES2Interface; |
| 24 } |
| 25 } |
| 26 |
| 27 namespace cc { |
| 28 class Resource; |
| 29 class RasterSource; |
| 30 class ResourcePool; |
| 31 |
| 32 struct StagingBuffer { |
| 33 StagingBuffer(const gfx::Size& size, ResourceFormat format); |
| 34 ~StagingBuffer(); |
| 35 |
| 36 void DestroyGLResources(gpu::gles2::GLES2Interface* gl); |
| 37 void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd, |
| 38 ResourceFormat format, |
| 39 bool is_free) const; |
| 40 |
| 41 const gfx::Size size; |
| 42 const ResourceFormat format; |
| 43 scoped_ptr<gfx::GpuMemoryBuffer> gpu_memory_buffer; |
| 44 base::TimeTicks last_usage; |
| 45 unsigned texture_id; |
| 46 unsigned image_id; |
| 47 unsigned query_id; |
| 48 uint64_t content_id; |
| 49 }; |
| 50 |
| 51 class CC_EXPORT StagingBufferPool |
| 52 : public base::trace_event::MemoryDumpProvider { |
| 53 public: |
| 54 ~StagingBufferPool() final; |
| 55 |
| 56 static scoped_ptr<StagingBufferPool> Create( |
| 57 base::SequencedTaskRunner* task_runner, |
| 58 ResourceProvider* resource_provider, |
| 59 bool use_partial_raster, |
| 60 int max_staging_buffer_usage_in_bytes); |
| 61 void Shutdown(); |
| 62 |
| 63 // Overridden from base::trace_event::MemoryDumpProvider: |
| 64 bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args, |
| 65 base::trace_event::ProcessMemoryDump* pmd) override; |
| 66 |
| 67 scoped_ptr<StagingBuffer> AcquireStagingBuffer(const Resource* resource, |
| 68 uint64_t previous_content_id); |
| 69 void ReleaseStagingBuffer(scoped_ptr<StagingBuffer> staging_buffer); |
| 70 |
| 71 private: |
| 72 StagingBufferPool(base::SequencedTaskRunner* task_runner, |
| 73 ResourceProvider* resource_provider, |
| 74 bool use_partial_raster, |
| 75 int max_staging_buffer_usage_in_bytes); |
| 76 |
| 77 void AddStagingBuffer(const StagingBuffer* staging_buffer, |
| 78 ResourceFormat format); |
| 79 void RemoveStagingBuffer(const StagingBuffer* staging_buffer); |
| 80 void MarkStagingBufferAsFree(const StagingBuffer* staging_buffer); |
| 81 void MarkStagingBufferAsBusy(const StagingBuffer* staging_buffer); |
| 82 |
| 83 base::TimeTicks GetUsageTimeForLRUBuffer(); |
| 84 void ScheduleReduceMemoryUsage(); |
| 85 void ReduceMemoryUsage(); |
| 86 void ReleaseBuffersNotUsedSince(base::TimeTicks time); |
| 87 |
| 88 scoped_ptr<base::trace_event::ConvertableToTraceFormat> StateAsValue() const; |
| 89 void StagingStateAsValueInto( |
| 90 base::trace_event::TracedValue* staging_state) const; |
| 91 |
| 92 scoped_refptr<base::SequencedTaskRunner> task_runner_; |
| 93 ResourceProvider* const resource_provider_; |
| 94 const bool use_partial_raster_; |
| 95 |
| 96 mutable base::Lock lock_; |
| 97 // |lock_| must be acquired when accessing the following members. |
| 98 using StagingBufferSet = std::set<const StagingBuffer*>; |
| 99 StagingBufferSet buffers_; |
| 100 using StagingBufferDeque = std::deque<scoped_ptr<StagingBuffer>>; |
| 101 StagingBufferDeque free_buffers_; |
| 102 StagingBufferDeque busy_buffers_; |
| 103 const int max_staging_buffer_usage_in_bytes_; |
| 104 int staging_buffer_usage_in_bytes_; |
| 105 int free_staging_buffer_usage_in_bytes_; |
| 106 const base::TimeDelta staging_buffer_expiration_delay_; |
| 107 bool reduce_memory_usage_pending_; |
| 108 base::Closure reduce_memory_usage_callback_; |
| 109 |
| 110 base::WeakPtrFactory<StagingBufferPool> weak_ptr_factory_; |
| 111 |
| 112 DISALLOW_COPY_AND_ASSIGN(StagingBufferPool); |
| 113 }; |
| 114 |
| 115 } // namespace cc |
| 116 |
| 117 #endif // CC_RASTER_STAGING_BUFFER_POOL_H_ |
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