1 // Copyright 2013 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/base/latency_info_swap_promise_monitor.h" 6 7 #include "base/threading/platform_thread.h" 8 #include "cc/base/latency_info_swap_promise.h" 9 #include "cc/trees/layer_tree_host.h" 10 #include "cc/trees/layer_tree_host_impl.h" 11 #include "cc/trees/layer_tree_impl.h" 12 13 namespace { 14 15 bool AddRenderingScheduledComponent(ui::LatencyInfo* latency_info) { 16 if (latency_info->FindLatency( 17 ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT, 0, NULL)) 18 return false; 19 latency_info->AddLatencyNumber( 20 ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT, 0, 0); 21 return true; 22 } 23 24 bool AddForwardingScrollUpdateToMainComponent(ui::LatencyInfo* latency_info) { 25 if (latency_info->FindLatency( 26 ui::INPUT_EVENT_LATENCY_FORWARD_SCROLL_UPDATE_TO_MAIN_COMPONENT, 27 0, 28 NULL)) 29 return false; 30 latency_info->AddLatencyNumber( 31 ui::INPUT_EVENT_LATENCY_FORWARD_SCROLL_UPDATE_TO_MAIN_COMPONENT, 32 0, 33 latency_info->trace_id); 34 return true; 35 } 36 37 } // namespace 38 39 namespace cc { 40 41 LatencyInfoSwapPromiseMonitor::LatencyInfoSwapPromiseMonitor( 42 ui::LatencyInfo* latency, 43 LayerTreeHost* layer_tree_host, 44 LayerTreeHostImpl* layer_tree_host_impl) 45 : SwapPromiseMonitor(layer_tree_host, layer_tree_host_impl), 46 latency_(latency) {} 47 48 LatencyInfoSwapPromiseMonitor::~LatencyInfoSwapPromiseMonitor() {} 49 50 void LatencyInfoSwapPromiseMonitor::OnSetNeedsCommitOnMain() { 51 if (AddRenderingScheduledComponent(latency_)) { 52 scoped_ptr<SwapPromise> swap_promise(new LatencyInfoSwapPromise(*latency_)); 53 layer_tree_host_->QueueSwapPromise(swap_promise.Pass()); 54 } 55 } 56 57 void LatencyInfoSwapPromiseMonitor::OnSetNeedsRedrawOnImpl() { 58 if (AddRenderingScheduledComponent(latency_)) { 59 scoped_ptr<SwapPromise> swap_promise(new LatencyInfoSwapPromise(*latency_)); 60 layer_tree_host_impl_->active_tree()->QueueSwapPromise(swap_promise.Pass()); 61 } 62 } 63 64 void LatencyInfoSwapPromiseMonitor::OnForwardScrollUpdateToMainThreadOnImpl() { 65 if (AddForwardingScrollUpdateToMainComponent(latency_)) { 66 int64 new_sequence_number = 0; 67 for (ui::LatencyInfo::LatencyMap::const_iterator it = 68 latency_->latency_components.begin(); 69 it != latency_->latency_components.end(); 70 ++it) { 71 if (it->first.first == ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT) { 72 new_sequence_number = 73 (static_cast<int64>(base::PlatformThread::CurrentId()) << 32) | 74 (it->second.sequence_number & 0xffffffff); 75 DCHECK(new_sequence_number != it->second.sequence_number); 76 break; 77 } 78 } 79 if (!new_sequence_number) 80 return; 81 ui::LatencyInfo new_latency; 82 new_latency.AddLatencyNumber( 83 ui::INPUT_EVENT_LATENCY_BEGIN_SCROLL_UPDATE_MAIN_COMPONENT, 84 0, 85 new_sequence_number); 86 new_latency.TraceEventType("ScrollUpdate"); 87 new_latency.CopyLatencyFrom( 88 *latency_, 89 ui::INPUT_EVENT_LATENCY_FORWARD_SCROLL_UPDATE_TO_MAIN_COMPONENT); 90 scoped_ptr<SwapPromise> swap_promise( 91 new LatencyInfoSwapPromise(new_latency)); 92 layer_tree_host_impl_->QueueSwapPromiseForMainThreadScrollUpdate( 93 swap_promise.Pass()); 94 } 95 } 96 97 } // namespace cc 98
