[Bug 461617] modified Sazanami-Gothic font showing vertical text rendering glitches not seen in the original
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Wed Sep 30 02:23:04 UTC 2009
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https://bugzilla.redhat.com/show_bug.cgi?id=461617
--- Comment #14 from Akira TAGOH <tagoh at redhat.com> 2009-09-29 22:23:02 EDT ---
Thanks for analysing. here is more details in TTF spec:
GDEF Header
0000: 00 01 00 00 : Version of GDEF table
0004: 00 0c : offset to GlyphClassDef table
0006: 00 00 : offset to AttachList table
0008: 00 16 : offset to LigCaretList table
000A: 00 00 : offset to Mark Attachment Class Definition table
GlyphClassDef table
000C: 00 02 : ClassFormat
000E: 00 01 : ClassRangeCount
: ClassRangeRecord[0]
0010: 00 03 : Start
0012: 35 0f : End
0014: 00 01 : Class, 1 = base glyphs
LigCaretList table
0016: 00 04 : offset to Coverage table
0018: 00 00 : LigGlyphCount
Coverage table
001A: 00 02 : CoverageFormat
001C: 00 00 : GlyphCount
In either case, there are actually no glyph definitions in the coverage table.
I'm really wondering why it affects to this.
Is it freetype or HarfBuzz bug?
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