Mitchell Hashimoto
22f437aac6
font: coretext cell width calculation
2022-10-08 11:49:23 -07:00
Mitchell Hashimoto
f393049988
fix compilation
2022-10-08 11:25:54 -07:00
Mitchell Hashimoto
0e167ae24c
font: coretext initialize face from memory
2022-10-08 11:21:24 -07:00
Mitchell Hashimoto
a21dda2b08
font: lower interface requirement for face
2022-10-08 10:07:35 -07:00
Mitchell Hashimoto
0ff79a0623
font: coretext glyphIndex
2022-10-08 10:04:17 -07:00
Mitchell Hashimoto
723db8be2f
font: coretext face presentation
2022-10-08 09:55:22 -07:00
Mitchell Hashimoto
90f3b9391c
font: begin coretext Face
2022-10-08 09:43:54 -07:00
Mitchell Hashimoto
71ec509930
Make font face a compile time interface, stub for coretext
2022-10-08 09:19:21 -07:00
Mitchell Hashimoto
a44d4ea33b
Fix underline/strikeout position with larger fonts
2022-10-06 15:40:43 -07:00
Mitchell Hashimoto
b18309187e
Strikethrough ( #19 )
...
Not as straightforward as it sounds, but not hard either:
* Read OS/2 sfnt tables from TrueType fonts
* Calculate strikethrough position/thickness (prefer font-advertised if possible, calculate if not)
* Plumb the SGR code through the terminal state -- does not increase cell memory size
* Modify the shader to support it
The shaders are getting pretty nasty after this... there's tons of room for improvement. I chose to follow the existing shader style for this to keep it straightforward but will likely soon refactor the shaders.
2022-10-06 15:03:19 -07:00
Mitchell Hashimoto
3a7e53e2e4
font: calculate correct offset for non-scalable emoji fonts
2022-10-06 14:12:03 -07:00
Mitchell Hashimoto
3b549e0709
more accurately compute font metrics
2022-10-06 11:07:49 -07:00
Mitchell Hashimoto
3d4aacd51d
underline is derived from the primary font
2022-10-04 11:08:07 -07:00
Mitchell Hashimoto
c149696f61
redoing some of the baseline calcs, remove from shader
2022-10-04 10:00:32 -07:00
Mitchell Hashimoto
a4e8b5ae8c
calculate font metrics per face
2022-10-03 12:31:07 -07:00
Mitchell Hashimoto
f41cbf228b
font: set "backend" enum vs booleans
2022-10-02 09:41:37 -07:00
Mitchell Hashimoto
12c9482d48
Mac Font Discovery with CoreText ( #17 )
...
This implements font discovery so the `--font-family` flag works for macOS. Fonts are looked up using the Core Text API so any installed font on the Mac system can be used.
We still use FreeType for rendering, and CoreText doesn't _quite_ give us all the information we need to build the exact face in FreeType. So a TODO after this is to now implement glyph _rendering_ using Core Text and Core Graphics. Until then, a couple fonts don't quite work (i.e. Monaco, a big one!) but many do!
2022-10-01 22:21:30 -07:00
Mitchell Hashimoto
b6a4fff6d8
search for fonts on startup
2022-09-29 11:57:29 -07:00
Mitchell Hashimoto
30a5041a38
font Group has Lib, loads deferred faces when needed
2022-09-29 10:30:45 -07:00
Mitchell Hashimoto
b11ed06fc2
font: test loading deferred face for fontconfig
2022-09-24 13:34:56 -07:00
Mitchell Hashimoto
88a4cb65f3
src/font: working on initiaizing deferred fonts from fc
2022-09-23 14:12:38 -07:00
Mitchell Hashimoto
bc9a0a36a8
store requested size alongside deferred font for loading
2022-09-23 14:12:38 -07:00
Mitchell Hashimoto
92251ed913
font group works with deferred faces exclusively
2022-09-23 14:12:38 -07:00
Mitchell Hashimoto
ac26c20e94
font discovery builds up a set of deferred faces
2022-09-23 14:12:38 -07:00
Mitchell Hashimoto
1c1da63c7e
deferred face hasCodepoint
2022-09-23 14:12:38 -07:00
Mitchell Hashimoto
141182aa13
start adding fontconfig conditional compilation
2022-09-23 14:12:38 -07:00
Mitchell Hashimoto
7bde20a43d
a cell is empty only if it also has no styling
...
Previously we only checked if it had no character. With text shaping,
this was causing runs of only empty backgrounds to not render.
2022-09-13 10:12:44 -07:00
Mitchell Hashimoto
97aef76501
avoid large shaper buffer allocation on every frame
2022-09-07 20:27:36 -07:00
Mitchell Hashimoto
98dff5a163
better handling of combination characters
2022-09-07 20:10:06 -07:00
Mitchell Hashimoto
8d90292cb2
remove font conversion stuff
2022-09-07 16:17:41 -07:00
Mitchell Hashimoto
278d9ad9d6
add tracing
2022-09-07 16:10:16 -07:00
Mitchell Hashimoto
85dff335f1
much more accurate run splits and cell widths in runs
2022-09-07 10:30:40 -07:00
Mitchell Hashimoto
3f1942223b
only test presentation VS15/16 if directly adjacent to codepoint
2022-09-06 14:26:43 -07:00
Mitchell Hashimoto
da7843e8b4
test shaping a long emoji
2022-09-06 14:25:29 -07:00
Mitchell Hashimoto
f40eb3663a
kind of handle VS15/16 better, its not blank anymore, but its wrong
2022-09-06 13:56:20 -07:00
Mitchell Hashimoto
e326bc4921
fonts are presentation format aware (text vs emoji)
2022-09-06 13:30:29 -07:00
Mitchell Hashimoto
302889bfb3
font don't include convert
2022-09-05 22:53:29 -07:00
Mitchell Hashimoto
0d2c03c21c
Font face handles zero-width glyphs (weird but happens)
2022-09-05 22:53:00 -07:00
Mitchell Hashimoto
90d250a3ba
Rebase
2022-09-05 11:41:40 -07:00
Mitchell Hashimoto
480d262bc1
Calculate grid_width properly, use that instead of wide mask in shader
2022-09-05 11:38:53 -07:00
Mitchell Hashimoto
3231b84927
Ligatures
...
This introduces a naive first pass at integrating ligatures. The basic
ligatures (such as "==" in some fonts) work great. Skin-toned emoji are
struggling a bit.
This isn't the most performant way to do this, either, and I plan on
improving that.
2022-09-05 11:38:52 -07:00
Mitchell Hashimoto
47242ad12a
test writing graphemes
2022-09-05 10:29:52 -07:00
Mitchell Hashimoto
77c8ec0a20
the big screen switchover
2022-09-01 00:58:47 -07:00
Mitchell Hashimoto
39376feae0
font: shape API, calls shape and outputs some debug
2022-08-29 20:15:29 -07:00
Mitchell Hashimoto
dafc99746d
font: Face initializes a hb_font alongside every face
2022-08-29 16:46:53 -07:00
Mitchell Hashimoto
0505018186
Line segmentation into text runs
2022-08-29 16:39:48 -07:00
Mitchell Hashimoto
2cab94e64d
move cell metrics calculation out into src/font
2022-08-29 11:44:05 -07:00
Mitchell Hashimoto
bd9c048c02
use new font.GroupCache, remove unused font structs
2022-08-29 11:34:21 -07:00
Mitchell Hashimoto
a0aa100815
font: GroupCache is like Group, but with caching...
2022-08-29 11:10:50 -07:00
Mitchell Hashimoto
a75035c042
font: introduce Group which will eventually replace FallbackSet
...
This is more oriented around glyph indexes and also introduces an
important concept in the FontIndex which can be cached ahead of time so
that we can eventually break down text into runs for text shaping.
2022-08-29 10:16:53 -07:00
