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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "VsyncChild.h"
#include "mozilla/VsyncDispatcher.h"
#include "nsThreadUtils.h"
namespace mozilla {
namespace layout {
VsyncChild::VsyncChild()
: mObservingVsync(false)
, mIsShutdown(false)
, mVsyncRate(TimeDuration::Forever())
{
MOZ_ASSERT(NS_IsMainThread());
}
VsyncChild::~VsyncChild()
{
MOZ_ASSERT(NS_IsMainThread());
}
bool
VsyncChild::SendObserve()
{
MOZ_ASSERT(NS_IsMainThread());
if (!mObservingVsync && !mIsShutdown) {
mObservingVsync = true;
PVsyncChild::SendObserve();
}
return true;
}
bool
VsyncChild::SendUnobserve()
{
MOZ_ASSERT(NS_IsMainThread());
if (mObservingVsync && !mIsShutdown) {
mObservingVsync = false;
PVsyncChild::SendUnobserve();
}
return true;
}
void
VsyncChild::ActorDestroy(ActorDestroyReason aActorDestroyReason)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mIsShutdown);
mIsShutdown = true;
mObserver = nullptr;
}
bool
VsyncChild::RecvNotify(const TimeStamp& aVsyncTimestamp)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mIsShutdown);
if (mObservingVsync && mObserver) {
mObserver->NotifyVsync(aVsyncTimestamp);
}
return true;
}
void
VsyncChild::SetVsyncObserver(VsyncObserver* aVsyncObserver)
{
MOZ_ASSERT(NS_IsMainThread());
mObserver = aVsyncObserver;
}
TimeDuration
VsyncChild::GetVsyncRate()
{
if (mVsyncRate == TimeDuration::Forever()) {
PVsyncChild::SendRequestVsyncRate();
}
return mVsyncRate;
}
bool
VsyncChild::RecvVsyncRate(const float& aVsyncRate)
{
mVsyncRate = TimeDuration::FromMilliseconds(aVsyncRate);
return true;
}
} // namespace layout
} // namespace mozilla
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