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Bug 436663 - workaround crash caused by long sequence of Hebrew words. r=roc, sr=vlad, a=dveditz

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git-svn-id: svn://10.0.0.236/trunk@254986 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
jdaggett%mozilla.com 2008-11-11 10:05:39 +00:00
parent b5a81b9856
commit d57fb0d2d0
1 changed files with 10 additions and 1 deletions
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11
mozilla/gfx/thebes/src/gfxAtsuiFonts.cpp
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@ -654,7 +654,16 @@ gfxAtsuiFontGroup::GuessMaximumStringLength()
// but we need to be a bit careful to avoid math errors.
PRUint32 maxAdvance = PRUint32(GetFontAt(0)->GetMetrics().maxAdvance);
PRUint32 chars = 0x7FFF/PR_MAX(1, maxAdvance);
return PR_MAX(1, chars);
PRUint32 realGuessMax = PR_MAX(1, chars);
// bug 436663 - ATSUI crashes on 10.5.3 with certain character sequences
// at around 512 characters, so for safety sake max out at 500 characters
if (gfxPlatformMac::GetPlatform()->OSXVersion() >= MAC_OS_X_VERSION_10_5_HEX) {
realGuessMax = PR_MIN(500, realGuessMax);
}
return realGuessMax;
}
/*