CoreGraphics does not provide a means to get the original font data for a
CGFont, only the tables. As a result, Skia pieces the font data back
together when requested. The most awkward part of this is choosing the
first four bytes, and the CTFont suggestion seems to often be wrong.
This change doublechecks the selection of 'typ1', prefering to use 'OTTO'
if there are no 'TYP1' or 'CID ' tables. These sorts of fonts are
extremely old and unlikely to be in current use. It appears that CTFont
may report that it has this format if it is an 'OTTO' font with very few
glyphs. If Skia serializes such a font with 'typ1' as the first four
bytes, CoreGraphics will not create a CGFont from the resulting font data.
BUG=chromium:809763,skia:7630
Change-Id: I9979b9f0ebdd27c4ad0903e8ee6237241e755541
Reviewed-on: https://skia-review.googlesource.com/113306
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Part of the Typeface test is Android specific and tests that the Android
legacyMakeTypeface returns nullptr when called with a non-null family
name and there is no match. A new FontMgrAndroidLegacyMakeTypeface test
is introduced to test this and also properly test creating one with
SkFontMgr_Android_CustomFonts.
Change-Id: Iceb8b9b5490f5eeeaeac30a68daf2c4daac53c86
Reviewed-on: https://skia-review.googlesource.com/70660
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>
The hintgasp font was added specifically for the typefacerendering gm.
However, this gm didn't actually use the font, so now use it. In
addition this adds embedded bitmap strikes to the hintgasp font and the
gm is updated to test these as well.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2140863002
NOTREECHECKS=true
Test only change, does not affect users.
Review-Url: https://codereview.chromium.org/2140863002
FreeType automatically selects the 'most Unicode' cmap available,
otherwise the default cmap is NULL. When this happens the fallback
should include the 3,0 symbol cmap, as is outlined in the Apple
TrueType documentation. This cmap should effectively be a Unicode
mapping, but exclusively in the private use area.
BUG=skia:1873,chromium:489452
Review URL: https://codereview.chromium.org/1163833003
This test font contains
☓ U+2613 SALTIRE
⬛ U+2B1B BLACK LARGE SQUARE
⬜ U+2B1C WHITE LARGE SQUARE
All at full EM size (with standard amount above and below the
baseline).
Review URL: https://codereview.chromium.org/1134153002
