mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 14:45:29 +00:00
b6d880aca1
The patch is generated from following command: rgrep -l unused.h|xargs sed -i -e s,mozilla/unused.h,mozilla/Unused.h, MozReview-Commit-ID: AtLcWApZfES --HG-- rename : mfbt/unused.h => mfbt/Unused.h
122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
/* -*- 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 "VsyncParent.h"
|
|
|
|
#include "BackgroundParent.h"
|
|
#include "BackgroundParentImpl.h"
|
|
#include "gfxPlatform.h"
|
|
#include "mozilla/Unused.h"
|
|
#include "nsIThread.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "VsyncSource.h"
|
|
|
|
namespace mozilla {
|
|
|
|
using namespace ipc;
|
|
|
|
namespace layout {
|
|
|
|
/*static*/ already_AddRefed<VsyncParent>
|
|
VsyncParent::Create()
|
|
{
|
|
AssertIsOnBackgroundThread();
|
|
RefPtr<gfx::VsyncSource> vsyncSource = gfxPlatform::GetPlatform()->GetHardwareVsync();
|
|
RefPtr<VsyncParent> vsyncParent = new VsyncParent();
|
|
vsyncParent->mVsyncDispatcher = vsyncSource->GetRefreshTimerVsyncDispatcher();
|
|
return vsyncParent.forget();
|
|
}
|
|
|
|
VsyncParent::VsyncParent()
|
|
: mObservingVsync(false)
|
|
, mDestroyed(false)
|
|
, mBackgroundThread(NS_GetCurrentThread())
|
|
{
|
|
MOZ_ASSERT(mBackgroundThread);
|
|
AssertIsOnBackgroundThread();
|
|
}
|
|
|
|
VsyncParent::~VsyncParent()
|
|
{
|
|
// Since we use NS_INLINE_DECL_THREADSAFE_REFCOUNTING, we can't make sure
|
|
// VsyncParent is always released on the background thread.
|
|
}
|
|
|
|
bool
|
|
VsyncParent::NotifyVsync(TimeStamp aTimeStamp)
|
|
{
|
|
// Called on hardware vsync thread. We should post to current ipc thread.
|
|
MOZ_ASSERT(!IsOnBackgroundThread());
|
|
nsCOMPtr<nsIRunnable> vsyncEvent =
|
|
NewRunnableMethod<TimeStamp>(this,
|
|
&VsyncParent::DispatchVsyncEvent,
|
|
aTimeStamp);
|
|
MOZ_ALWAYS_SUCCEEDS(mBackgroundThread->Dispatch(vsyncEvent, NS_DISPATCH_NORMAL));
|
|
return true;
|
|
}
|
|
|
|
void
|
|
VsyncParent::DispatchVsyncEvent(TimeStamp aTimeStamp)
|
|
{
|
|
AssertIsOnBackgroundThread();
|
|
|
|
// If we call NotifyVsync() when we handle ActorDestroy() message, we might
|
|
// still call DispatchVsyncEvent().
|
|
// Similarly, we might also receive RecvUnobserveVsync() when call
|
|
// NotifyVsync(). We use mObservingVsync and mDestroyed flags to skip this
|
|
// notification.
|
|
if (mObservingVsync && !mDestroyed) {
|
|
Unused << SendNotify(aTimeStamp);
|
|
}
|
|
}
|
|
|
|
bool
|
|
VsyncParent::RecvRequestVsyncRate()
|
|
{
|
|
AssertIsOnBackgroundThread();
|
|
TimeDuration vsyncRate = gfxPlatform::GetPlatform()->GetHardwareVsync()->GetGlobalDisplay().GetVsyncRate();
|
|
Unused << SendVsyncRate(vsyncRate.ToMilliseconds());
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
VsyncParent::RecvObserve()
|
|
{
|
|
AssertIsOnBackgroundThread();
|
|
if (!mObservingVsync) {
|
|
mVsyncDispatcher->AddChildRefreshTimer(this);
|
|
mObservingVsync = true;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
VsyncParent::RecvUnobserve()
|
|
{
|
|
AssertIsOnBackgroundThread();
|
|
if (mObservingVsync) {
|
|
mVsyncDispatcher->RemoveChildRefreshTimer(this);
|
|
mObservingVsync = false;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
VsyncParent::ActorDestroy(ActorDestroyReason aReason)
|
|
{
|
|
MOZ_ASSERT(!mDestroyed);
|
|
AssertIsOnBackgroundThread();
|
|
if (mObservingVsync) {
|
|
mVsyncDispatcher->RemoveChildRefreshTimer(this);
|
|
}
|
|
mVsyncDispatcher = nullptr;
|
|
mDestroyed = true;
|
|
}
|
|
|
|
} // namespace layout
|
|
} // namespace mozilla
|