Nigel Tao
bcfeb16b74
Allow multiple kern subtables.
...
We still only use the first subtable, but we no longer fail if there's
more than one subtable.
Updates fogleman/gg#7
2017-04-29 10:42:25 +10:00
Nigel Tao
b12e981082
Support Unicode Full Repertoire cmap tables.
...
For example, "Apple Color Emoji.ttc" has such a cmap. After this commit,
we can render its glyph for "U+0001F1E6 REGIONAL INDICATOR SYMBOL LETTER
A", which is clearly outside the Unicode BMP.
Note that this only lets us render black-and-white glyphs for out-of-BMP
runes. Rendering color glyphs (i.e. emoji) remains TODO.
Updates #45
2017-04-20 11:23:31 +10:00
Nigel Tao
255de57f4e
Merge pull request #47 from mattn/ttc-v2
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Support TTC v2
2017-04-08 18:09:51 +10:00
Yasuhiro Matsumoto
d8e54afd1a
Support TTC v2
...
Close #11
2017-04-07 21:01:03 +09:00
Nigel Tao
d9be45aaf7
Don't crash when a glyph has no contours.
2016-12-08 17:47:10 +11:00
Nigel Tao
38b4c392ad
Add the genbasicfont program.
2016-06-26 16:51:47 +10:00
Nigel Tao
a31d0146da
Loosen the SLOOP (Set LOOP) opcode precondition.
...
This goes against spec, but matches the C Freetype implementation and
works around a bug in DejaVuSansMono.ttf's hinted '2' glyph.
2016-05-19 16:15:10 +10:00
Nigel Tao
c67e4d98d2
Use an "example" build tag instead of "ignore".
...
The golang-dev discussion is at
https://groups.google.com/d/topic/golang-dev/qKpxZiNABcY/discussion
2016-04-10 15:05:36 +10:00
Nigel Tao
f9531a3606
Add a face.Metrics method, and parse hhea ascent and descent.
...
A recent change added a Metrics method to the font.Face interface.
2016-03-24 11:05:48 +11:00
Nigel Tao
9ce4eec92a
Add an example/capjoin program.
2016-02-21 22:25:27 +11:00
Nigel Tao
aeca2bb589
Merge pull request #29 from fogleman/master
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Fix Capper & Joiner bugs introduced by 856a70c
.
2016-02-19 12:40:59 +11:00
Michael Fogleman
94aa75bbd9
A+C: add Michael Fogleman <fogleman@gmail.com>
2016-02-18 18:24:11 -05:00
Michael Fogleman
aed127b02f
Fix Capper & Joiner bugs introduced by 856a70c
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Some constants were not updated properly when switching
from raster.Point to fixed.26_6
2016-02-18 10:39:21 -05:00
Nigel Tao
2b7eb15daa
Merge pull request #22 from ksimka/patch-1
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Fix max alpha value: 1<<32-1, not 1<<16-1.
This was missed in 8a442816
.
2016-01-29 13:25:26 +11:00
Nigel Tao
724061d635
A+C: add Maksim Kochkin <maxxarts@gmail.com>.
2016-01-29 13:20:07 +11:00
Maksim Kochkin
23cf3c9a64
Change alpha max value from 1<<32-1 to 1<<16-1
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Looks like since 8a4428169d
you forget to change this in MonochromePainter
2015-11-29 16:00:23 +03:00
Nigel Tao
f29eb116de
A+C: fix Steven Edwards' name and e-mail address.
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See the discussion on https://github.com/golang/freetype/pull/19
2015-09-24 11:38:38 +10:00
Nigel Tao
640edd0946
Fix some style nits.
2015-09-21 17:13:27 +10:00
Stephen Edwards
995030b974
Add Font.Name method.
2015-09-21 16:46:35 +10:00
Nigel Tao
fb514f71f0
A+C: add Stephen Edwards <cureadvocate@gmail.com>.
2015-09-21 16:40:42 +10:00
Nigel Tao
41fa49aa5b
Update x/exp/shiny/font to x/image/font.
2015-09-01 15:49:46 +10:00
Nigel Tao
494079eb2b
Cache the glyph index lookup.
...
benchmark old ns/op new ns/op delta
BenchmarkDrawString-8 8618239 8149527 -5.44%
2015-08-31 14:14:50 +10:00
Nigel Tao
03bdcc0fe1
Have face.Glyph return an advance width, not the new dot.
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This tracks an upstream change in the x/exp/shiny/font package.
2015-08-31 11:34:42 +10:00
Nigel Tao
8a4428169d
Make raster.Painter's max alpha 1<<16-1, not 1<<32-1.
...
This is more consistent with the standard library's image/color package.
The benchmarks didn't seem to change significantly.
2015-08-30 23:48:43 +10:00
Nigel Tao
3ba1c0f728
Rename Point and End slices to Points and Ends.
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The slice Foos is plural; it refers to multiple elements. The element Foos[i]
is the i'th Foo.
2015-08-30 22:27:18 +10:00
Nigel Tao
3cc748686b
Use fixed.Rectangle26_6 instead of truetype.Bounds.
...
The previous "the endpoints are inclusive" comment seems confusing. It's true
that the bounding box's max X equals the right-most coordinate, which suggests
<= instead of <, but that node's coordinate is itself exclusive. Consider the
solid 1-pixel square: (0, 0), (64, 0), (64, 64), (0, 64) in fixed.Point26_6
coordinates. The right-most coordinate is 64, and the bounding box's max X
equals 64, but rasterizing that square only affects sub-pixels up to but not
including 64.
Instead, it seems accurate to follow the fixed.Rectangle26_6 description, in
that the max values are exclusive.
2015-08-30 22:06:37 +10:00
Nigel Tao
7a598da6de
Delete the truetype.NewGlyphBuf function.
...
The zero value of a GlyphBuf is already perfectly usable.
2015-08-30 21:35:58 +10:00
Nigel Tao
fe26067669
Cache glyph mask images.
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benchmark old ns/op new ns/op delta
BenchmarkDrawString-4 88103151 14188817 -83.90%
2015-08-27 22:16:16 +10:00
Nigel Tao
62e59645ee
Quantize sub-pixel glyph rendering.
...
This is in anticipation of caching glyph images. Quantization means that cache
hits are more likely.
Also make NewFace take an *Options instead of an Options.
2015-08-25 22:34:31 +10:00
Nigel Tao
a021a5f23e
Rename Kerning to Kern.
2015-08-24 16:17:16 +10:00
Nigel Tao
db77c6a161
Delete some unnecessary fixed.Int26_6 conversions.
2015-08-24 15:57:20 +10:00
Nigel Tao
24265d1c91
Implement GlyphBounds and GlyphAdvance.
2015-08-24 15:51:50 +10:00
Nigel Tao
9c46b87503
Make face.Glyph not allocate a new mask each time.
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benchmark old ns/op new ns/op delta
BenchmarkDrawString-4 96914389 88683659 -8.49%
benchmark old allocs new allocs delta
BenchmarkDrawString-4 32287 0 -100.00%
benchmark old bytes new bytes delta
BenchmarkDrawString-4 1929619 156 -99.99%
2015-08-23 21:11:02 +10:00
Nigel Tao
2d84b72ff6
Add a DrawString benchmark.
2015-08-23 20:45:19 +10:00
Nigel Tao
d8618774be
Fix some comment typos.
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These comments weren't updated when we went from 24.8 to 26.6.
2015-08-22 14:48:07 +10:00
Nigel Tao
6deea24143
Add a truetype.Face type.
...
Its implementation is mostly a copy/paste of the freetype.Context type.
Follow-up commits will make it more efficient.
Also add an example that uses a truetype.Face and the
golang.org/x/exp/shiny/font package to draw text.
2015-08-22 14:46:12 +10:00
Nigel Tao
7166253831
Fix rounding up for 26.6 fixed point, not 24.8.
2015-08-21 14:00:51 +10:00
Nigel Tao
071d96ed47
Update BenchmarkDrawString testdata dir.
2015-08-20 16:09:11 +10:00
Nigel Tao
f42630ca7a
Use the common golang.org/x/exp/shiny/font.Hinting type.
2015-08-20 16:07:51 +10:00
Nigel Tao
7e2154db58
Delete the f26dot6 type in favor of fixed.Int26_6.
2015-08-18 16:47:46 +10:00
Nigel Tao
43fc220ebd
Make f26dot6 methods prefix, not infix.
...
This is in anticipation of removing the f26dot6 type entirely. Instead,
we will use the fixed.Int26_6 type from golang.org/x/image/math/fixed.
2015-08-18 16:36:59 +10:00
Nigel Tao
e8121e3c7d
Don't use backtick quotes in the comments.
2015-08-18 16:33:14 +10:00
Nigel Tao
2a5cbfd47e
Use the fixed.Int26_6 type in package truetype.
2015-08-18 16:30:37 +10:00
Nigel Tao
a9554eda48
Fix example/freetype for the s/Fix32/fixed.Int26_6/ change.
2015-08-18 16:08:44 +10:00
Nigel Tao
856a70c395
Use the fixed.Int26_6 and fixed.Point26_6 types.
2015-08-17 10:26:09 +10:00
Nigel Tao
d91c1d6844
Remove Point methods other than Add, Sub, Mul.
...
This is in anticipation of removing the Point type entirely. Instead, we will
use the fixed.Point26_6 type from golang.org/x/image/math/fixed.
2015-08-13 21:17:25 +10:00
Nigel Tao
84ba7fbd7a
Add "+build ignore" tags to the examples.
2015-08-12 14:41:46 +10:00
Nigel Tao
5193f9f147
Add canonical import paths.
2015-08-12 14:34:19 +10:00
Nigel Tao
d1c460896e
Fix testdata paths after moving files up one level.
2015-08-12 14:32:40 +10:00
Nigel Tao
bf25f8ce0e
Move files up one level.
2015-08-12 14:30:01 +10:00