зеркало из https://github.com/mozilla/gecko-dev.git
81 строка
2.0 KiB
C++
81 строка
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "VsyncChild.h"
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#include "mozilla/SchedulerGroup.h"
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#include "mozilla/VsyncDispatcher.h"
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#include "nsThreadUtils.h"
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namespace mozilla::layout {
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VsyncChild::VsyncChild()
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: mObservingVsync(false),
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mIsShutdown(false),
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mVsyncRate(TimeDuration::Forever()) {
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MOZ_ASSERT(NS_IsMainThread());
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}
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VsyncChild::~VsyncChild() { MOZ_ASSERT(NS_IsMainThread()); }
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bool VsyncChild::SendObserve() {
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MOZ_ASSERT(NS_IsMainThread());
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if (!mObservingVsync && !mIsShutdown) {
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mObservingVsync = true;
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PVsyncChild::SendObserve();
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}
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return true;
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}
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bool VsyncChild::SendUnobserve() {
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MOZ_ASSERT(NS_IsMainThread());
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if (mObservingVsync && !mIsShutdown) {
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mObservingVsync = false;
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PVsyncChild::SendUnobserve();
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}
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return true;
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}
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void VsyncChild::ActorDestroy(ActorDestroyReason aActorDestroyReason) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(!mIsShutdown);
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mIsShutdown = true;
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mObserver = nullptr;
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}
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mozilla::ipc::IPCResult VsyncChild::RecvNotify(const VsyncEvent& aVsync) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(!mIsShutdown);
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SchedulerGroup::MarkVsyncRan();
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if (mObservingVsync && mObserver) {
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mObserver->NotifyVsync(aVsync);
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}
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return IPC_OK();
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}
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void VsyncChild::SetVsyncObserver(VsyncObserver* aVsyncObserver) {
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MOZ_ASSERT(NS_IsMainThread());
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mObserver = aVsyncObserver;
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}
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TimeDuration VsyncChild::GetVsyncRate() {
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if (mVsyncRate == TimeDuration::Forever()) {
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PVsyncChild::SendRequestVsyncRate();
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}
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return mVsyncRate;
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}
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TimeDuration VsyncChild::VsyncRate() { return mVsyncRate; }
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mozilla::ipc::IPCResult VsyncChild::RecvVsyncRate(const float& aVsyncRate) {
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mVsyncRate = TimeDuration::FromMilliseconds(aVsyncRate);
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return IPC_OK();
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}
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} // namespace mozilla::layout
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