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-rw-r--r--layout/base/nsRefreshDriver.cpp98
-rw-r--r--layout/base/nsRefreshDriver.h5
2 files changed, 0 insertions, 103 deletions
diff --git a/layout/base/nsRefreshDriver.cpp b/layout/base/nsRefreshDriver.cpp
index 5ea7a0188..c0d09d2a0 100644
--- a/layout/base/nsRefreshDriver.cpp
+++ b/layout/base/nsRefreshDriver.cpp
@@ -851,12 +851,6 @@ NS_IMPL_ISUPPORTS(VsyncChildCreateCallback, nsIIPCBackgroundChildCreateCallback)
static StaticRefPtr<RefreshDriverTimer> sRegularRateTimer;
static StaticRefPtr<InactiveRefreshDriverTimer> sThrottledRateTimer;
-#ifdef XP_WIN
-static int32_t sHighPrecisionTimerRequests = 0;
-// a bare pointer to avoid introducing a static constructor
-static nsITimer *sDisableHighPrecisionTimersTimer = nullptr;
-#endif
-
static void
CreateContentVsyncRefreshTimer(void*)
{
@@ -934,16 +928,6 @@ nsRefreshDriver::Shutdown()
sRegularRateTimer = nullptr;
sThrottledRateTimer = nullptr;
-
-#ifdef XP_WIN
- if (sDisableHighPrecisionTimersTimer) {
- sDisableHighPrecisionTimersTimer->Cancel();
- NS_RELEASE(sDisableHighPrecisionTimersTimer);
- timeEndPeriod(1);
- } else if (sHighPrecisionTimerRequests) {
- timeEndPeriod(1);
- }
-#endif
}
/* static */ int32_t
@@ -1062,7 +1046,6 @@ nsRefreshDriver::nsRefreshDriver(nsPresContext* aPresContext)
mNeedToRecomputeVisibility(false),
mTestControllingRefreshes(false),
mViewManagerFlushIsPending(false),
- mRequestedHighPrecision(false),
mInRefresh(false),
mWaitingForTransaction(false),
mSkippedPaints(false),
@@ -1300,83 +1283,6 @@ nsRefreshDriver::StopTimer()
mActiveTimer->RemoveRefreshDriver(this);
mActiveTimer = nullptr;
-
- if (mRequestedHighPrecision) {
- SetHighPrecisionTimersEnabled(false);
- }
-}
-
-#ifdef XP_WIN
-static void
-DisableHighPrecisionTimersCallback(nsITimer *aTimer, void *aClosure)
-{
- timeEndPeriod(1);
- NS_RELEASE(sDisableHighPrecisionTimersTimer);
-}
-#endif
-
-void
-nsRefreshDriver::ConfigureHighPrecision()
-{
- bool haveUnthrottledFrameRequestCallbacks =
- mFrameRequestCallbackDocs.Length() > 0;
-
- // if the only change that's needed is that we need high precision,
- // then just set that
- if (!mThrottled && !mRequestedHighPrecision &&
- haveUnthrottledFrameRequestCallbacks) {
- SetHighPrecisionTimersEnabled(true);
- } else if (mRequestedHighPrecision && !haveUnthrottledFrameRequestCallbacks) {
- SetHighPrecisionTimersEnabled(false);
- }
-}
-
-void
-nsRefreshDriver::SetHighPrecisionTimersEnabled(bool aEnable)
-{
- LOG("[%p] SetHighPrecisionTimersEnabled (%s)", this, aEnable ? "true" : "false");
-
- if (aEnable) {
- NS_ASSERTION(!mRequestedHighPrecision, "SetHighPrecisionTimersEnabled(true) called when already requested!");
-#ifdef XP_WIN
- if (++sHighPrecisionTimerRequests == 1) {
- // If we had a timer scheduled to disable it, that means that it's already
- // enabled; just cancel the timer. Otherwise, really enable it.
- if (sDisableHighPrecisionTimersTimer) {
- sDisableHighPrecisionTimersTimer->Cancel();
- NS_RELEASE(sDisableHighPrecisionTimersTimer);
- } else {
- timeBeginPeriod(1);
- }
- }
-#endif
- mRequestedHighPrecision = true;
- } else {
- NS_ASSERTION(mRequestedHighPrecision, "SetHighPrecisionTimersEnabled(false) called when not requested!");
-#ifdef XP_WIN
- if (--sHighPrecisionTimerRequests == 0) {
- // Don't jerk us around between high precision and low precision
- // timers; instead, only allow leaving high precision timers
- // after 90 seconds. This is arbitrary, but hopefully good
- // enough.
- NS_ASSERTION(!sDisableHighPrecisionTimersTimer, "We shouldn't have an outstanding disable-high-precision timer !");
-
- nsCOMPtr<nsITimer> timer = do_CreateInstance(NS_TIMER_CONTRACTID);
- if (timer) {
- timer.forget(&sDisableHighPrecisionTimersTimer);
- sDisableHighPrecisionTimersTimer->InitWithFuncCallback(DisableHighPrecisionTimersCallback,
- nullptr,
- 90 * 1000,
- nsITimer::TYPE_ONE_SHOT);
- } else {
- // might happen if we're shutting down XPCOM; just drop the time period down
- // immediately
- timeEndPeriod(1);
- }
- }
-#endif
- mRequestedHighPrecision = false;
- }
}
uint32_t
@@ -1993,8 +1899,6 @@ nsRefreshDriver::Tick(int64_t aNowEpoch, TimeStamp aNowTime)
observer->DidRefresh();
}
- ConfigureHighPrecision();
-
NS_ASSERTION(mInRefresh, "Still in refresh");
if (mPresContext->IsRoot() && XRE_IsContentProcess() && gfxPrefs::AlwaysPaint()) {
@@ -2247,7 +2151,6 @@ nsRefreshDriver::ScheduleFrameRequestCallbacks(nsIDocument* aDocument)
}
// make sure that the timer is running
- ConfigureHighPrecision();
EnsureTimerStarted();
}
@@ -2256,7 +2159,6 @@ nsRefreshDriver::RevokeFrameRequestCallbacks(nsIDocument* aDocument)
{
mFrameRequestCallbackDocs.RemoveElement(aDocument);
mThrottledFrameRequestCallbackDocs.RemoveElement(aDocument);
- ConfigureHighPrecision();
// No need to worry about restarting our timer in slack mode if it's already
// running; that will happen automatically when it fires.
}
diff --git a/layout/base/nsRefreshDriver.h b/layout/base/nsRefreshDriver.h
index b2dd9be4b..4e839e764 100644
--- a/layout/base/nsRefreshDriver.h
+++ b/layout/base/nsRefreshDriver.h
@@ -450,7 +450,6 @@ private:
bool mNeedToRecomputeVisibility;
bool mTestControllingRefreshes;
bool mViewManagerFlushIsPending;
- bool mRequestedHighPrecision;
bool mInRefresh;
// True if the refresh driver is suspended waiting for transaction
@@ -502,10 +501,6 @@ private:
friend class mozilla::RefreshDriverTimer;
- // turn on or turn off high precision based on various factors
- void ConfigureHighPrecision();
- void SetHighPrecisionTimersEnabled(bool aEnable);
-
static void Shutdown();
// `true` if we are currently in jank-critical mode.