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2,302 Commits 6 Branches 7 Tags 103 MiB
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235 Commits

Author SHA1 Message Date
Mitchell Hashimoto
ec69644de6 move stb to src/stb, add stb_image for png decoding 2023-08-20 22:03:20 -07:00
Mitchell Hashimoto
9e27dcdec9 font: shaper doesn't split run on selection if selection splits grapheme 2023-08-15 15:32:10 -07:00
Mitchell Hashimoto
0af6edc25b only the app should own the font discovery instance 2023-08-13 11:51:24 -07:00
Mitchell Hashimoto
619d2ade3e only initialize font discovery mechanism once, cache on App 
Fontconfig in particular appears unsafe to initialize multiple times.

Font discovery is a singleton object in an application and only ever
accessed from the main thread so we can work around this by only
initializing and caching the font discovery mechanism exactly once on
the app singleton.
 2023-08-13 08:01:33 -07:00
Kevin Hovsäter
22b8173164 Fix typos 2023-08-08 14:27:34 +02:00
Mitchell Hashimoto
4137c6cf69 font/shaper: do not break on merged emoji if cursor is directly on it 2023-07-18 16:38:02 -07:00
Mitchell Hashimoto
4b062dc45c font/shaper: text runs should split around block cursors 
Fixes #206
 2023-07-18 16:20:30 -07:00
Mitchell Hashimoto
9300404603 font: block cursor was not taking full cell width 2023-07-10 11:45:35 -07:00
Mitchell Hashimoto
45ac9b5d4c font-feature config to enable/disable OpenType Font Features 2023-07-05 13:12:30 -07:00
Mitchell Hashimoto
853f15ef19 bar cursor was short by a couple pixels 2023-07-04 13:12:21 -07:00
Mitchell Hashimoto
8113ad1393 font: share skew matrix for core text 2023-07-03 15:58:52 -07:00
Mitchell Hashimoto
c90a52ee50 font: don't fallback styles when searching for a codepoint 
see comment
 2023-07-03 15:55:01 -07:00
Mitchell Hashimoto
4bf8a0d149 font: support skew transform for auto-italics 2023-07-03 15:54:50 -07:00
Mitchell Hashimoto
369a7dda4c coretext: use alternate approach to calcaulate cell height and ascent 
Fixes #174
 2023-07-03 14:26:06 -07:00
Mitchell Hashimoto
0e802b6118 coretext: switch up positive/negative y axis values 
No functional change, just swapping the math around to match freetype.
 2023-07-03 14:04:35 -07:00
Mitchell Hashimoto
0faf6097d0 Change font metrics to all be integers, not floats. 
Font metrics realistically should be integral. Cell widths, cell
heights, etc. do not make sense to be floats, since our grid is
integral. There is no such thing as a "half cell" (or any point).

The reason we historically had these all as f32 is simplicity mixed
with history. OpenGL APIs and shaders all use f32 for their values, we
originally only supported OpenGL, and all the font rendering used to be
directly in the renderer code (like... a year+ ago).

When we refactored the font metrics calculation to its own system and
also added additional renderers like Metal (which use f64, not f32), we
never updated anything. We just kept metrics as f32 and casted
everywhere.

With CoreText and #177 this finally reared its ugly head. By forgetting
a simple rounding on cell metric calculation, our integral renderers
(sprite fonts) were off by 1 pixel compared to the GPU renderers.
Insidious.

Let's represent font metrics with the types that actually make sense: a
cell width/height, etc. is _integral_. When we get to the GPU, we now
cast to floats. We also cast to floats whenever we're doing more precise
math (i.e. mouse offset calculation). In this case, we're only
converting to floats from a integral type which is going to be much
safer and less prone to uncertain rounding than converting to an int
from a float type.

Fixes #177
 2023-07-03 11:23:20 -07:00
Mitchell Hashimoto
9968128da9 fix failing test on non-Mac 2023-07-01 15:17:50 -07:00
Mitchell Hashimoto
1d1b868958 font: do not use Noto on macOS for tests, it doesn't work 2023-07-01 13:51:31 -07:00
Mitchell Hashimoto
0a718ec3eb pkg/macos: do not use bitCast through a function 
workaround Zig issue: https://github.com/ziglang/zig/issues/16290
 2023-07-01 13:38:10 -07:00
Mitchell Hashimoto
06f63288c8 coretext: address TODO 2023-07-01 10:15:50 -07:00
Mitchell Hashimoto
126817cac2 coretext: tweak underline position 2023-07-01 10:12:29 -07:00
Mitchell Hashimoto
51e42a62ed font: default rasterizer on macOS is now coretext 2023-07-01 10:04:49 -07:00
Mitchell Hashimoto
3795cd6c2d font: turn rasterization options into a struct, add thicken 2023-07-01 09:55:19 -07:00
Mitchell Hashimoto
e99376cac1 font: update comment 2023-07-01 09:23:41 -07:00
Mitchell Hashimoto
b5cc37e20c font: comment out debug logs 2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
42cc11e32c coretext: remove the old renderGlyph impl 2023-07-01 09:23:40 -07:00
Mitchell Hashimoto
3c5be0726f sprite: all rasterized sprites should have a 1px padding 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
30fdbaebf4 font: run splitting needs to detect italics 2023-06-23 13:56:07 -07:00
Mitchell Hashimoto
6e79e84acf config file quoted strings are accepted now 2023-06-23 13:45:48 -07:00
Mitchell Hashimoto
1d45df17e4 font: underline sprites should never go out of bounds for canvas 2023-06-22 20:11:57 -07:00
Mitchell Hashimoto
43554c1b64 font: remove old logging 2023-06-22 16:07:43 -07:00
Mitchell Hashimoto
e810a7bf91 font: fix double underline drawing with very low underline positions 2023-06-22 16:07:10 -07:00
Mitchell Hashimoto
cfb8108279 font: curly underline has a minimum wave height 
This fixes rendering issues with some fonts where the underline position
is too close to the bottom of the cell causing a very shallow curl.
 2023-06-22 16:01:00 -07:00
Mitchell Hashimoto
01de38b20d font: if CoreText needs to allocate, stack allocate and log 2023-05-31 22:03:27 -07:00