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Bug 1251405. Part 2. Use 64 bit ints to hold the delay between the current time and the last animation time. r=edwin

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When storing ms, 32 bit ints can hold 2^32/1000/60/60/24 ~= 49 days. It's quite conceivable that someone would leave a tab in the background for 50 days.
This commit is contained in:
Timothy Nikkel 2016-03-04 21:54:03 -06:00
parent f0724d93e6
commit fde95fcc03
1 changed files with 1 additions and 1 deletions
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2
image/FrameAnimator.cpp
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@ -192,7 +192,7 @@ FrameAnimator::AdvanceFrame(TimeStamp aTime)
if (delay.ToMilliseconds() > loopTime) { if (delay.ToMilliseconds() > loopTime) {
// Explicitly use integer division to get the floor of the number of // Explicitly use integer division to get the floor of the number of
// loops. // loops.
uint32_t loops = static_cast<uint32_t>(delay.ToMilliseconds()) / loopTime; uint64_t loops = static_cast<uint64_t>(delay.ToMilliseconds()) / loopTime;
mCurrentAnimationFrameTime += mCurrentAnimationFrameTime +=
TimeDuration::FromMilliseconds(loops * loopTime); TimeDuration::FromMilliseconds(loops * loopTime);
} }