64930 2011-07-21 03:21:56 -0700 [Chromium] Port harfbuzz code to new harfbuzz-ng API 2012-01-27 01:21:52 -0800 1 1 1 Unclassified WebKit Platform 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 69826 http://crbug.com/68551 P2 Normal --- 1 bashi bashi efidler evan jshin tony oldest_to_newest 440333 0 bashi 2011-07-21 03:21:56 -0700 This is the WebKit bug entry for http://crbug.com/68551. 440341 1 101571 bashi 2011-07-21 04:10:10 -0700 Created attachment 101571 WIP Patch V0 440343 2 bashi 2011-07-21 04:11:41 -0700 (In reply to comment #1) > Created an attachment (id=101571) [details] > WIP Patch V0 Not intended for review, but comments and suggestions are highly appreciated. Some notes for the WIP patch: - Using harfbuzz-ng revision: f6fd3780e12b23ff7ed3743497c8996e71dcb064 - Need to update src/third_party/harfbuzz-ng to the above revision in chromium working copy to compile this patch. - Indic/South East Asian(SEA) scripts are not rendered correctly because harfbuzz-ng doesn't support these script yet. - I don't see performance regression on page cycler test intl1, but selectionRect() remarkably slow than the old harfbuzz. I took a profile and found BEInt::operator<Type>() in hb-open-type-private.hh takes a lot of time. I'd like to ask some advices: - Would it be worth maintain both harfbuzz and harfbuzz-ng for a while, at least harfbuzz-ng can render Indic/SEA script correctly? - If it's worth doing, how should we maintain them? Adding a compile flag, or adding switching mechanism them depends on scripts to be shaped? 440502 3 jshin 2011-07-21 11:18:56 -0700 I'm not sure how to proceed, but what's certain is that we can't switch to hb-ng until Indic and SE Asian scripts are supported by hb-ng. 440884 4 101707 bashi 2011-07-22 02:14:44 -0700 Created attachment 101707 WIP Patch V1 440885 5 bashi 2011-07-22 02:16:43 -0700 (In reply to comment #4) > Created an attachment (id=101707) [details] > WIP Patch V1 Add USE(HARFBUZZ_NG) macro to maintain both old harfbuzz and harfbuzz-ng. Still work in progress. 543887 6 bashi 2012-01-27 01:21:52 -0800 *** This bug has been marked as a duplicate of bug 69826 *** 101571 2011-07-21 04:10:10 -0700 2011-07-22 02:14:38 -0700 WIP Patch V0 bug-64930-20110721201008.patch text/plain 54673 bashi U3VidmVyc2lvbiBSZXZpc2lvbjogOTE0MTMKZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL3Bs YXRmb3JtL2dyYXBoaWNzL2Nocm9taXVtL0NvbXBsZXhUZXh0Q29udHJvbGxlckxpbnV4LmNwcCBi L1NvdXJjZS9XZWJDb3JlL3BsYXRmb3JtL2dyYXBoaWNzL2Nocm9taXVtL0NvbXBsZXhUZXh0Q29u dHJvbGxlckxpbnV4LmNwcAppbmRleCBkZDBiMWFjODgxYWZjYjRmNDA1YjlmOTQ0MDdlNGVjNTVm NTJjNjkwLi5jMzliMjViOTQ2ODNjNjljMGJlMTlkMGUxMDAzNmMzM2E3ODVhMGQ1IDEwMDY0NAot LS0gYS9Tb3VyY2UvV2ViQ29yZS9wbGF0Zm9ybS9ncmFwaGljcy9jaHJvbWl1bS9Db21wbGV4VGV4 dENvbnRyb2xsZXJMaW51eC5jcHAKKysrIGIvU291cmNlL1dlYkNvcmUvcGxhdGZvcm0vZ3JhcGhp Y3MvY2hyb21pdW0vQ29tcGxleFRleHRDb250cm9sbGVyTGludXguY3BwCkBAIC0xLDUgKzEsNSBA QAogLyoKLSAqIENvcHlyaWdodCAoYykgMjAxMCBHb29nbGUgSW5jLiBBbGwgcmlnaHRzIHJlc2Vy 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