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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 #include "components/exo/compositor_frame_sink_holder.h" |
| 6 |
| 7 #include "cc/resources/returned_resource.h" |
| 8 #include "components/exo/surface.h" |
| 9 |
| 10 namespace exo { |
| 11 |
| 12 //////////////////////////////////////////////////////////////////////////////// |
| 13 // CompositorFrameSinkHolder, public: |
| 14 |
| 15 CompositorFrameSinkHolder::CompositorFrameSinkHolder( |
| 16 cc::mojom::MojoCompositorFrameSinkPtr compositor_frame_sink, |
| 17 Surface* surface, |
| 18 cc::mojom::MojoCompositorFrameSinkClientRequest request) |
| 19 : compositor_frame_sink_(std::move(compositor_frame_sink)), |
| 20 surface_(surface), |
| 21 begin_frame_source_(base::MakeUnique<cc::ExternalBeginFrameSource>(this)), |
| 22 binding_(this, std::move(request)), |
| 23 weak_factory_(this) { |
| 24 surface_->AddSurfaceObserver(this); |
| 25 } |
| 26 |
| 27 bool CompositorFrameSinkHolder::HasReleaseCallbacksForResource( |
| 28 cc::ResourceId id) { |
| 29 return release_callbacks_.find(id) != release_callbacks_.end(); |
| 30 } |
| 31 |
| 32 void CompositorFrameSinkHolder::AddResourceReleaseCallback( |
| 33 cc::ResourceId id, |
| 34 std::unique_ptr<cc::SingleReleaseCallback> callback) { |
| 35 release_callbacks_[id] = std::make_pair(this, std::move(callback)); |
| 36 } |
| 37 |
| 38 void CompositorFrameSinkHolder::ActivateFrameCallbacks( |
| 39 std::list<FrameCallback>* frame_callbacks) { |
| 40 active_frame_callbacks_.splice(active_frame_callbacks_.end(), |
| 41 *frame_callbacks); |
| 42 } |
| 43 |
| 44 void CompositorFrameSinkHolder::CancelFrameCallbacks() { |
| 45 // Call pending frame callbacks with a null frame time to indicate that they |
| 46 // have been cancelled. |
| 47 for (const auto& frame_callback : active_frame_callbacks_) |
| 48 frame_callback.Run(base::TimeTicks()); |
| 49 } |
| 50 |
| 51 void CompositorFrameSinkHolder::SetNeedsBeginFrame(bool needs_begin_frame) { |
| 52 needs_begin_frame_ = needs_begin_frame; |
| 53 OnNeedsBeginFrames(needs_begin_frame); |
| 54 } |
| 55 |
| 56 //////////////////////////////////////////////////////////////////////////////// |
| 57 // cc::mojom::MojoCompositorFrameSinkClient overrides: |
| 58 |
| 59 void CompositorFrameSinkHolder::DidReceiveCompositorFrameAck() { |
| 60 // TODO(staraz): Implement this |
| 61 } |
| 62 |
| 63 void CompositorFrameSinkHolder::OnBeginFrame(const cc::BeginFrameArgs& args) { |
| 64 while (!active_frame_callbacks_.empty()) { |
| 65 active_frame_callbacks_.front().Run(args.frame_time); |
| 66 active_frame_callbacks_.pop_front(); |
| 67 } |
| 68 begin_frame_source_->OnBeginFrame(args); |
| 69 } |
| 70 |
| 71 void CompositorFrameSinkHolder::ReclaimResources( |
| 72 const cc::ReturnedResourceArray& resources) { |
| 73 scoped_refptr<CompositorFrameSinkHolder> holder(this); |
| 74 for (auto& resource : resources) { |
| 75 auto it = release_callbacks_.find(resource.id); |
| 76 DCHECK(it != release_callbacks_.end()); |
| 77 it->second.second->Run(resource.sync_token, resource.lost); |
| 78 release_callbacks_.erase(it); |
| 79 } |
| 80 } |
| 81 |
| 82 void CompositorFrameSinkHolder::WillDrawSurface() { |
| 83 if (surface_) |
| 84 surface_->WillDraw(); |
| 85 |
| 86 UpdateNeedsBeginFrame(); |
| 87 } |
| 88 |
| 89 //////////////////////////////////////////////////////////////////////////////// |
| 90 // cc::BeginFrameObserver overrides: |
| 91 |
| 92 const cc::BeginFrameArgs& CompositorFrameSinkHolder::LastUsedBeginFrameArgs() |
| 93 const { |
| 94 return last_begin_frame_args_; |
| 95 } |
| 96 |
| 97 void CompositorFrameSinkHolder::OnBeginFrameSourcePausedChanged(bool paused) {} |
| 98 |
| 99 //////////////////////////////////////////////////////////////////////////////// |
| 100 // cc::ExternalBeginFrameSouceClient overrides: |
| 101 |
| 102 void CompositorFrameSinkHolder::OnNeedsBeginFrames(bool needs_begin_frames) { |
| 103 compositor_frame_sink_->SetNeedsBeginFrame(needs_begin_frames); |
| 104 } |
| 105 |
| 106 //////////////////////////////////////////////////////////////////////////////// |
| 107 // SurfaceObserver overrides: |
| 108 |
| 109 void CompositorFrameSinkHolder::OnSurfaceDestroying(Surface* surface) { |
| 110 surface_->RemoveSurfaceObserver(this); |
| 111 surface_ = nullptr; |
| 112 } |
| 113 |
| 114 //////////////////////////////////////////////////////////////////////////////// |
| 115 // ExoComopositorFrameSink, private: |
| 116 |
| 117 CompositorFrameSinkHolder::~CompositorFrameSinkHolder() {} |
| 118 |
| 119 void CompositorFrameSinkHolder::UpdateNeedsBeginFrame() { |
| 120 if (!begin_frame_source_) |
| 121 return; |
| 122 |
| 123 bool needs_begin_frame = !active_frame_callbacks_.empty(); |
| 124 if (needs_begin_frame == needs_begin_frame_) |
| 125 return; |
| 126 |
| 127 needs_begin_frame_ = needs_begin_frame; |
| 128 OnNeedsBeginFrames(needs_begin_frame_); |
| 129 } |
| 130 |
| 131 } // namespace exo |
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