cc/base/latency_info_swap_promise_monitor.cc

   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 "cc/base/latency_info_swap_promise.h"
   8 #include "cc/trees/layer_tree_host.h"
   9 #include "cc/trees/layer_tree_host_impl.h"
  10 #include "cc/trees/layer_tree_impl.h"
  11
  12 namespace {
  13
  14 bool AddRenderingScheduledComponent(ui::LatencyInfo* latency_info) {
  15   if (latency_info->FindLatency(
  16           ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT, 0, 0))
  17     return false;
  18   latency_info->AddLatencyNumber(
  19       ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT, 0, 0);
  20   return true;
  21 }
  22
  23 }  // namespace
  24
  25 namespace cc {
  26
  27 LatencyInfoSwapPromiseMonitor::LatencyInfoSwapPromiseMonitor(
  28     ui::LatencyInfo* latency,
  29     LayerTreeHost* layer_tree_host,
  30     LayerTreeHostImpl* layer_tree_host_impl)
  31     : SwapPromiseMonitor(layer_tree_host, layer_tree_host_impl),
  32       latency_(latency) {}
  33
  34 LatencyInfoSwapPromiseMonitor::~LatencyInfoSwapPromiseMonitor() {}
  35
  36 void LatencyInfoSwapPromiseMonitor::OnSetNeedsCommitOnMain() {
  37   if (AddRenderingScheduledComponent(latency_)) {
  38     scoped_ptr<SwapPromise> swap_promise(new LatencyInfoSwapPromise(*latency_));
  39     layer_tree_host_->QueueSwapPromise(swap_promise.Pass());
  40   }
  41 }
  42
  43 void LatencyInfoSwapPromiseMonitor::OnSetNeedsRedrawOnImpl() {
  44   if (AddRenderingScheduledComponent(latency_)) {
  45     scoped_ptr<SwapPromise> swap_promise(new LatencyInfoSwapPromise(*latency_));
  46     layer_tree_host_impl_->active_tree()->QueueSwapPromise(swap_promise.Pass());
  47   }
  48 }
  49
  50 void LatencyInfoSwapPromiseMonitor::OnForwardScrollUpdateToMainThreadOnImpl() {
  51   if (AddRenderingScheduledComponent(latency_)) {
  52     scoped_ptr<SwapPromise> swap_promise(new LatencyInfoSwapPromise(*latency_));
  53     layer_tree_host_impl_->QueueSwapPromiseForMainThreadScrollUpdate(
  54         swap_promise.Pass());
  55   }
  56 }
  57
  58 }  // namespace cc