RESOLVED FIXED 9808
REGRESSION: Incorrect layout (and ERROR) when forcing ATSU For All Text
https://bugs.webkit.org/show_bug.cgi?id=9808
Summary REGRESSION: Incorrect layout (and ERROR) when forcing ATSU For All Text
mitz
Reported 2006-07-09 11:02:11 PDT
To reproduce this bug, open the attached test case, choose Use ATSU For All Text from Safari's Debug menu and reload the page. Notice that the layout changes (the line breaks after Lorem) and if you are using a debug build, an error will be printed: ERROR: unexpected result from ATSUGetGlyphBounds(): actualNumBounds(389998136) != 1
Attachments
Test case (126 bytes, text/html)
2006-07-09 11:02 PDT, mitz
no flags
Patch with manual test and changelog (2.36 KB, patch)
2006-07-09 11:18 PDT, mitz
no flags
Patch (2.30 KB, patch)
2006-07-10 07:46 PDT, mitz
darin: review+
mitz
Comment 1 2006-07-09 11:02:47 PDT
Created attachment 9299 [details] Test case
mitz
Comment 2 2006-07-09 11:18:33 PDT
Created attachment 9300 [details] Patch with manual test and changelog
Darin Adler
Comment 3 2006-07-09 17:37:24 PDT
Comment on attachment 9300 [details] Patch with manual test and changelog Will this extra check have a measurable performance impact? If not, then r=me, but how can we be sure?
mitz
Comment 4 2006-07-09 23:26:58 PDT
Comment on attachment 9300 [details] Patch with manual test and changelog Going to play it safe performance-wise and move the check into the complex path where it matters.
mitz
Comment 5 2006-07-10 07:46:26 PDT
Created attachment 9341 [details] Patch Move the empty run check down into floatWidthForComplexText()
Darin Adler
Comment 6 2006-07-10 08:29:23 PDT
Comment on attachment 9341 [details] Patch r=me Even better if there was a comment explaining that this is not just an optimization, but required for correct results, but the layout test should suffice.
Darin Adler
Comment 7 2006-07-10 09:13:38 PDT
Committed revision 15305.
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