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| 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 #include "cc/surfaces/onscreen_display_client.h" | |
| 6 | |
| 7 #include "base/trace_event/trace_event.h" | |
| 8 #include "cc/output/output_surface.h" | |
| 9 #include "cc/surfaces/surface_display_output_surface.h" | |
| 10 #include "cc/surfaces/surface_factory.h" | |
| 11 #include "cc/surfaces/surface_manager.h" | |
| 12 | |
| 13 namespace cc { | |
| 14 | |
| 15 OnscreenDisplayClient::OnscreenDisplayClient( | |
| 16 scoped_ptr<OutputSurface> output_surface, | |
| 17 SurfaceManager* manager, | |
| 18 SharedBitmapManager* bitmap_manager, | |
| 19 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager, | |
| 20 const RendererSettings& settings, | |
| 21 scoped_refptr<base::SingleThreadTaskRunner> task_runner) | |
| 22 : output_surface_(output_surface.Pass()), | |
| 23 display_(new Display(this, | |
| 24 manager, | |
| 25 bitmap_manager, | |
| 26 gpu_memory_buffer_manager, | |
| 27 settings)), | |
| 28 task_runner_(task_runner), | |
| 29 scheduled_draw_(false), | |
| 30 output_surface_lost_(false), | |
| 31 deferred_draw_(false), | |
| 32 pending_frames_(0), | |
| 33 weak_ptr_factory_(this) { | |
| 34 } | |
| 35 | |
| 36 OnscreenDisplayClient::~OnscreenDisplayClient() { | |
| 37 } | |
| 38 | |
| 39 bool OnscreenDisplayClient::Initialize() { | |
| 40 return display_->Initialize(output_surface_.Pass()); | |
| 41 } | |
| 42 | |
| 43 void OnscreenDisplayClient::CommitVSyncParameters(base::TimeTicks timebase, | |
| 44 base::TimeDelta interval) { | |
| 45 surface_display_output_surface_->ReceivedVSyncParameters(timebase, interval); | |
| 46 } | |
| 47 | |
| 48 void OnscreenDisplayClient::DisplayDamaged() { | |
| 49 if (scheduled_draw_ || deferred_draw_) | |
| 50 return; | |
| 51 TRACE_EVENT0("content", "OnscreenDisplayClient::DisplayDamaged"); | |
| 52 if (pending_frames_ >= display_->GetMaxFramesPending()) { | |
| 53 deferred_draw_ = true; | |
| 54 } else { | |
| 55 ScheduleDraw(); | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 void OnscreenDisplayClient::ScheduleDraw() { | |
| 60 DCHECK(!deferred_draw_); | |
| 61 DCHECK(!scheduled_draw_); | |
| 62 scheduled_draw_ = true; | |
| 63 task_runner_->PostTask(FROM_HERE, base::Bind(&OnscreenDisplayClient::Draw, | |
| 64 weak_ptr_factory_.GetWeakPtr())); | |
| 65 } | |
| 66 | |
| 67 void OnscreenDisplayClient::OutputSurfaceLost() { | |
| 68 output_surface_lost_ = true; | |
| 69 surface_display_output_surface_->DidLoseOutputSurface(); | |
| 70 } | |
| 71 | |
| 72 void OnscreenDisplayClient::Draw() { | |
| 73 TRACE_EVENT0("content", "OnscreenDisplayClient::Draw"); | |
| 74 if (output_surface_lost_) | |
| 75 return; | |
| 76 scheduled_draw_ = false; | |
| 77 display_->Draw(); | |
| 78 } | |
| 79 | |
| 80 void OnscreenDisplayClient::DidSwapBuffers() { | |
| 81 pending_frames_++; | |
| 82 } | |
| 83 | |
| 84 void OnscreenDisplayClient::DidSwapBuffersComplete() { | |
| 85 pending_frames_--; | |
| 86 if ((pending_frames_ < display_->GetMaxFramesPending()) && deferred_draw_) { | |
| 87 deferred_draw_ = false; | |
| 88 ScheduleDraw(); | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 } // namespace cc | |
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