| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/base/latency_info_swap_promise_monitor.h" |
| |
| #include "base/threading/platform_thread.h" |
| #include "cc/base/latency_info_swap_promise.h" |
| #include "cc/trees/layer_tree_host.h" |
| #include "cc/trees/layer_tree_host_impl.h" |
| #include "cc/trees/layer_tree_impl.h" |
| |
| namespace { |
| |
| bool AddRenderingScheduledComponent(ui::LatencyInfo* latency_info, |
| bool on_main) { |
| ui::LatencyComponentType type = on_main ? |
| ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN_COMPONENT : |
| ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL_COMPONENT; |
| if (latency_info->FindLatency(type, 0, nullptr)) |
| return false; |
| latency_info->AddLatencyNumber(type, 0, 0); |
| return true; |
| } |
| |
| bool AddForwardingScrollUpdateToMainComponent(ui::LatencyInfo* latency_info) { |
| if (latency_info->FindLatency( |
| ui::INPUT_EVENT_LATENCY_FORWARD_SCROLL_UPDATE_TO_MAIN_COMPONENT, |
| 0, |
| nullptr)) |
| return false; |
| latency_info->AddLatencyNumber( |
| ui::INPUT_EVENT_LATENCY_FORWARD_SCROLL_UPDATE_TO_MAIN_COMPONENT, |
| 0, |
| latency_info->trace_id); |
| return true; |
| } |
| |
| } // namespace |
| |
| namespace cc { |
| |
| LatencyInfoSwapPromiseMonitor::LatencyInfoSwapPromiseMonitor( |
| ui::LatencyInfo* latency, |
| LayerTreeHost* layer_tree_host, |
| LayerTreeHostImpl* layer_tree_host_impl) |
| : SwapPromiseMonitor(layer_tree_host, layer_tree_host_impl), |
| latency_(latency) {} |
| |
| LatencyInfoSwapPromiseMonitor::~LatencyInfoSwapPromiseMonitor() {} |
| |
| void LatencyInfoSwapPromiseMonitor::OnSetNeedsCommitOnMain() { |
| if (AddRenderingScheduledComponent(latency_, true /* on_main */)) { |
| scoped_ptr<SwapPromise> swap_promise(new LatencyInfoSwapPromise(*latency_)); |
| layer_tree_host_->QueueSwapPromise(swap_promise.Pass()); |
| } |
| } |
| |
| void LatencyInfoSwapPromiseMonitor::OnSetNeedsRedrawOnImpl() { |
| if (AddRenderingScheduledComponent(latency_, false /* on_main */)) { |
| scoped_ptr<SwapPromise> swap_promise(new LatencyInfoSwapPromise(*latency_)); |
| layer_tree_host_impl_->active_tree()->QueueSwapPromise(swap_promise.Pass()); |
| } |
| } |
| |
| void LatencyInfoSwapPromiseMonitor::OnForwardScrollUpdateToMainThreadOnImpl() { |
| if (AddForwardingScrollUpdateToMainComponent(latency_)) { |
| int64 new_sequence_number = 0; |
| for (ui::LatencyInfo::LatencyMap::const_iterator it = |
| latency_->latency_components.begin(); |
| it != latency_->latency_components.end(); |
| ++it) { |
| if (it->first.first == ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT) { |
| new_sequence_number = |
| (static_cast<int64>(base::PlatformThread::CurrentId()) << 32) | |
| (it->second.sequence_number & 0xffffffff); |
| DCHECK(new_sequence_number != it->second.sequence_number); |
| break; |
| } |
| } |
| if (!new_sequence_number) |
| return; |
| ui::LatencyInfo new_latency; |
| new_latency.AddLatencyNumber( |
| ui::INPUT_EVENT_LATENCY_BEGIN_SCROLL_UPDATE_MAIN_COMPONENT, |
| 0, |
| new_sequence_number); |
| new_latency.TraceEventType("ScrollUpdate"); |
| new_latency.CopyLatencyFrom( |
| *latency_, |
| ui::INPUT_EVENT_LATENCY_FORWARD_SCROLL_UPDATE_TO_MAIN_COMPONENT); |
| scoped_ptr<SwapPromise> swap_promise( |
| new LatencyInfoSwapPromise(new_latency)); |
| layer_tree_host_impl_->QueueSwapPromiseForMainThreadScrollUpdate( |
| swap_promise.Pass()); |
| } |
| } |
| |
| } // namespace cc |