Mitchell Hashimoto
c68c487e14
Make selection part of the cache key for GPU cells
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If the selection state changes for a given row, the row must be
invalidated.
2022-09-14 19:58:36 -07:00
Mitchell Hashimoto
77851b30a2
Revert "update to latest Zig nightly"
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This reverts commit f3f2c3df268db905b6af6588e5e5008da0f48b60.
2022-09-14 19:39:10 -07:00
Mitchell Hashimoto
f3f2c3df26
update to latest Zig nightly
2022-09-14 19:34:19 -07:00
Mitchell Hashimoto
f5319f1ca6
Merge pull request #14 from mitchellh/fontconfig
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Fontconfig (bindings only)
2022-09-14 14:33:00 -07:00
Mitchell Hashimoto
e4ea27ec37
fontconfig: more APIs
2022-09-14 14:30:18 -07:00
Mitchell Hashimoto
aca36ba79b
fontconfig: fc-match
2022-09-14 14:26:42 -07:00
Mitchell Hashimoto
03ab1bedd4
fontconfig: fc-match
2022-09-14 12:49:43 -07:00
Mitchell Hashimoto
eb2ce495b3
fontconfig: font list
2022-09-14 10:14:09 -07:00
Mitchell Hashimoto
ce899dca11
fontconfig: font sets
2022-09-14 10:05:09 -07:00
Mitchell Hashimoto
382f569d65
fontconfig: object sets and patterns
2022-09-14 09:54:48 -07:00
Mitchell Hashimoto
b4d571e018
pkg/fontconfig: disable ubsan (reported upstream)
2022-09-14 09:23:02 -07:00
Mitchell Hashimoto
4ca71eef7c
don't build fontconfig on mac
2022-09-13 14:46:33 -07:00
Mitchell Hashimoto
59191b05cd
build fontconfig
2022-09-13 14:34:40 -07:00
Mitchell Hashimoto
d422d1ee78
pkg/fontconfig: starting, not working
2022-09-13 13:53:20 -07:00
Mitchell Hashimoto
d5ee4f8b21
Cell GPU cache must also key by screen type (primary/alternate)
2022-09-13 10:43:03 -07:00
Mitchell Hashimoto
7bde20a43d
a cell is empty only if it also has no styling
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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
b5f9e8abf0
fix potential crash
2022-09-13 10:12:29 -07:00
Mitchell Hashimoto
0801786d51
Cache text shaping results per row
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This uses an LRU to cache text shaping results per row. Rows are marked "dirty" and the cache invalidated whenever any cell on a row changes. Rows are identified by an ID in the screen circular buffer and not by y-value so even as the screen scrolls, the row cache remains valid. Benchmarks via tracing:
* Heavy output (`cat <big>.txt`) - ~2% slower due to overhead of low hit rate on cache
* Mostly static screen with only text - ~10% faster, high cache hit rate
* Mostly static screen with a mix of ligatures, emoji, text - ~40% faster, high cache hit rate
Terminals are "mostly static". Usually we sit with our prompt sitting there flashing, just re-rendering the history that already exists. We might scroll back a bit to see some recent results. Ultimately, `cat <big>.txt` is not that common so I think trading 2% slowdown on that for 10-40% speedup on the common case is worth it.
These percentages can eventually be thought of as direct FPS improvements (40% more FPS) once I split tty stream processing and rendering into separate threads and remove the FPS limiter that exists today.
2022-09-12 12:01:26 -07:00
Mitchell Hashimoto
b694afa425
update TODO
2022-09-12 11:39:20 -07:00
Mitchell Hashimoto
662b656218
implement LRU row GPU cell caching
2022-09-12 11:28:47 -07:00
Mitchell Hashimoto
3e27120e8c
lru resize
2022-09-12 11:01:22 -07:00
Mitchell Hashimoto
4f6c67fe9d
add LRU
2022-09-12 10:21:18 -07:00
Mitchell Hashimoto
8995e74e23
rows are dirty when initialized
2022-09-10 11:01:40 -07:00
Mitchell Hashimoto
08b7a866b6
Screen dirty tracking
2022-09-10 10:59:57 -07:00
Mitchell Hashimoto
d7d372124b
update to stage3 zig with -fstage1
2022-09-08 13:46:05 -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
d42c99b6be
Merge pull request #12 from mitchellh/ligs
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Ligatures v1 and VS15/VS16 Emoji Support
2022-09-07 16:18:58 -07:00
Mitchell Hashimoto
8d90292cb2
remove font conversion stuff
2022-09-07 16:17:41 -07:00
Mitchell Hashimoto
d951e40553
update TODO
2022-09-07 16:15:38 -07:00
Mitchell Hashimoto
54d47e8390
update TODO
2022-09-07 16:10:27 -07:00
Mitchell Hashimoto
278d9ad9d6
add tracing
2022-09-07 16:10:16 -07:00
Mitchell Hashimoto
90e4d12f79
only scale fonts to height
2022-09-07 15:59:23 -07:00
Mitchell Hashimoto
c1bb6450b0
fix some emoji sizing
2022-09-07 14:41:37 -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
3754de3b95
test very long emoji
2022-09-06 14:21:07 -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
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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
d839257c04
Merge pull request #11 from mitchellh/graphemes
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Graphemes and ZWJs
2022-09-05 11:36:38 -07:00
Mitchell Hashimoto
9e8d00f140
attach zero-width joiners to cells
2022-09-05 11:32:14 -07:00
Mitchell Hashimoto
8ef31aaaf9
Disable
2022-09-05 11:22:29 -07:00
Mitchell Hashimoto
802f230fa2
handle graphemes with more than 1 joiner
2022-09-05 10:35:22 -07:00
Mitchell Hashimoto
47242ad12a
test writing graphemes
2022-09-05 10:29:52 -07:00
