Mitchell Hashimoto
42cc11e32c
coretext: remove the old renderGlyph impl
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
362eeac74b
coretext: do not treat color diffs special for offset
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
d39e3f5428
coretext: improved baseline calculation
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
69396b0853
coretext: layout rect must fit all chars
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
5706770c38
coretext: handle glyph padding in region reservation
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
55254acaad
coretext: fix emoji placement
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
c52dc229f3
coretext: validate atlas depth matches color depth
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
a74e49833b
coretext: colored glyph rendering
2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
286944cd43
cleaning up rasterization, comments
2023-07-01 09:23:39 -07:00
Mitchell Hashimoto
552a1b51d0
coretext: rasterization looking cleaner
2023-07-01 09:23:39 -07:00
Mitchell Hashimoto
079fe7bc94
coretext: the size needs to be in pixels! (see comment)
2023-07-01 09:23:39 -07:00
Mitchell Hashimoto
4d7a2c9f05
font: remove the old comment about not doing the grey stroke
2023-07-01 09:23:39 -07:00
Mitchell Hashimoto
45da58188c
fix up for new zig
2023-07-01 09:23:39 -07:00
Mitchell Hashimoto
ef5d86ffb0
coretext: initially fill grey
2023-07-01 09:23:39 -07:00
Mitchell Hashimoto
2a1cbb4f21
coretext: calculate units per em/point
2023-07-01 09:23:39 -07:00
Mitchell Hashimoto
314f9287b1
Update Zig ( #164 )
...
* update zig
* pkg/fontconfig: clean up @as
* pkg/freetype,harfbuzz: clean up @as
* pkg/imgui: clean up @as
* pkg/macos: clean up @as
* pkg/pixman,utf8proc: clean up @as
* clean up @as
* lots more @as cleanup
* undo flatpak changes
* clean up @as
2023-06-30 12:15:31 -07:00
Mitchell Hashimoto
56f8e39e5b
Update zig, mach, fmt
2023-06-25 11:08:20 -07:00
Mitchell Hashimoto
97d9157d22
update zig version
2023-05-07 20:50:51 -07:00
Mitchell Hashimoto
20f9e98894
font/freetype: add a 1px border to each glyph in the texture atlas
2023-03-16 22:54:21 -07:00
Mitchell Hashimoto
c8252133a3
update zig version
2022-12-12 22:10:52 -08:00
Mitchell Hashimoto
bc74033ad6
face: web canvas can render grapheme clusters
2022-12-12 21:40:54 -08:00
Mitchell Hashimoto
c06ca04a1a
font: web canvas tracks glyph indexes for grapheme clusters
2022-12-12 11:31:30 -08:00
Mitchell Hashimoto
0c9a9b1f91
font: web canvas face has to render to check presentation for cp
...
Since we have no way to detect our presentation (text/emoji), we need to
actually render the glyph that is being requested to double-check that
the glyph matches our supported presentation.
We do this because the browser will render fallback fonts for a glyph if
it can't find one in the named font.
2022-12-07 19:20:04 -08:00
Mitchell Hashimoto
6aa212707e
font: web canvas can render emoji
2022-12-06 10:55:42 -08:00
Mitchell Hashimoto
d2afddb7e2
font: fix some JS memory leaks
2022-12-05 15:45:31 -08:00
Mitchell Hashimoto
ed4e8c36b0
font: add 1 to the canvas glyph to avoid clipping
2022-12-05 15:37:55 -08:00
Mitchell Hashimoto
25f2f1a652
font: fix glyph offset calculations for render
2022-12-05 15:25:09 -08:00
Mitchell Hashimoto
5e9dd02eab
font: add method for drawing atlas to canvas
2022-12-05 15:01:34 -08:00
Mitchell Hashimoto
84f6f37450
face: web canvas glyph rendering appears to work!
2022-12-05 14:28:10 -08:00
Mitchell Hashimoto
19e326dab6
font: working on rendering glyphs in canvas
2022-12-05 10:54:40 -08:00
Mitchell Hashimoto
df302fc2b6
calculate font metrics via canvas
2022-12-04 22:01:58 -08:00
Mitchell Hashimoto
c48d8cd151
hook up logging to wasm, example uses new zig-js package
2022-12-04 13:16:54 -08:00
Mitchell Hashimoto
437f1772f1
logging works for wasm
2022-12-04 12:29:11 -08:00
Mitchell Hashimoto
940828ed97
font: web canvas creates a canvas element
2022-12-03 22:11:01 -08:00
Mitchell Hashimoto
c32219554a
blank out web canvas impl
2022-12-01 13:02:17 -08:00
Mitchell Hashimoto
b858aea124
Start scaffolding web_canvas backend
2022-12-01 13:02:17 -08:00
Mitchell Hashimoto
f871630fa4
move Atlas to font
2022-11-28 10:35:46 -08:00
Mitchell Hashimoto
2796a0b964
font: when resizing a glyph, scale metrics by same ratio
...
We rely on the top/left offset to position the glyph properly. When we
were resizing, we weren't properly recalculating this offset which led
to some glyphs slightly (or majorly) off depending on how much they
resized.
2022-11-27 22:06:25 -08:00
Mitchell Hashimoto
da2942e083
font: specific codepoint lookup in internals
2022-11-17 15:49:14 -08:00
Mitchell Hashimoto
371a7f79cb
coretext: implement resizing
2022-11-15 20:29:58 -08:00
Mitchell Hashimoto
d759c7fb25
font: freetype face supports resize
2022-11-15 15:37:16 -08:00
Mitchell Hashimoto
1c4552de3b
font: freetype eliminate some duplicated work on init
2022-11-15 15:23:28 -08:00
Mitchell Hashimoto
d1718e6cbf
use libc memcpy/memmove instead of std.mem if available
2022-11-08 19:01:45 -08:00
Mitchell Hashimoto
79f69885ca
update to latest zig which renames @min/@max
2022-10-19 10:42:31 -07:00
Mitchell Hashimoto
fa0028f104
coretext: rasterize glyph with a padding to prevent artifacting
2022-10-18 14:57:44 -07:00
Mitchell Hashimoto
c00c8f52b5
coretext: render glyph on its own bounding box, calculate bearings
2022-10-18 14:49:23 -07:00
Mitchell Hashimoto
38e0c258d0
coretext: we do want to smooth and anti-alias glyphs
2022-10-18 12:56:02 -07:00
Mitchell Hashimoto
4669032e56
face: coretext zero the bitmap before render
2022-10-18 12:52:37 -07:00
Mitchell Hashimoto
58c107dceb
freetype: resize glyphs that are too tall prior to storing in texture
...
Most emoji fonts are massive glyphs (128x128, 256x256, etc.). This means
the texture we need to store emoji is also massive. For a 128x128 emoji
font (both Apple and Noto), we can only store 12 emoji before resizing
prior to this commit.
This commit now threads through a max height through to the font face
and resizes the bitmap in memory before putting it in the atlas. This
results in significant savings. The max height is the cell height. We
allow the glyphs to be as wide as necessary due to double (and more)
wide glyphs.
For the unicode emoji test file, the atlas size before and after:
Before: 262 MB
After: 16 MB
2022-10-17 19:14:30 -07:00
Mitchell Hashimoto
a39fe6baed
Use scalable check rather than fixed size check for setting char size
2022-10-16 20:55:06 -07:00
