128 Commits

Author SHA1 Message Date
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
Mitchell Hashimoto
2e1bc7bb01 Bring back freetype font bitmap conversion
Monaco on Mac is mono
2022-10-16 20:47:21 -07:00
Mitchell Hashimoto
1e23779337 pkg/macos: more stuff 2022-10-10 09:03:03 -07:00
Mitchell Hashimoto
c75e54fca0 update to API 2022-10-09 16:30:26 -07:00
Mitchell Hashimoto
276ae4f788 font: fix some coretext rendering issues 2022-10-09 11:45:02 -07:00
Mitchell Hashimoto
97e989daa8 font: coretext initial render glyph 2022-10-09 11:23:57 -07:00
Mitchell Hashimoto
1b7bc052d4 font: coretext calculate cell metrics 2022-10-09 10:57:19 -07:00
Mitchell Hashimoto
150b0a4d51 font: calculate cell height 2022-10-09 08:51:30 -07:00
Mitchell Hashimoto
a97f997f9a font: start working on core text cell height calcs 2022-10-08 17:03:09 -07:00
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
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