tor-browser

The Tor Browser
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CompositorWidgetVsyncObserver.cpp (1142B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "CompositorWidgetVsyncObserver.h"
      8 #include "mozilla/gfx/VsyncBridgeChild.h"
      9 
     10 namespace mozilla {
     11 namespace widget {
     12 
     13 CompositorWidgetVsyncObserver::CompositorWidgetVsyncObserver(
     14    RefPtr<VsyncBridgeChild> aVsyncBridge,
     15    const layers::LayersId& aRootLayerTreeId)
     16    : mVsyncBridge(aVsyncBridge), mRootLayerTreeId(aRootLayerTreeId) {
     17  MOZ_ASSERT(XRE_IsParentProcess());
     18  MOZ_ASSERT(NS_IsMainThread());
     19 }
     20 
     21 CompositorWidgetVsyncObserver::~CompositorWidgetVsyncObserver() = default;
     22 
     23 void CompositorWidgetVsyncObserver::NotifyVsync(const VsyncEvent& aVsync) {
     24  // Vsync notifications should only arrive on the vsync thread.
     25  MOZ_ASSERT(XRE_IsParentProcess());
     26  MOZ_ASSERT(!NS_IsMainThread());
     27 
     28  mVsyncBridge->NotifyVsync(aVsync, mRootLayerTreeId);
     29 }
     30 
     31 }  // namespace widget
     32 }  // namespace mozilla