17 Commits

Author SHA1 Message Date
Qwerasd
4ca6413ec9 renderer: do not constrain color glyphs
There is no reason to and I do not know where this assumption came from.
It's very possible for a colored glyph to (intentionally!) exceed the
cell bounds, and we shouldn't be stopping this...
2024-12-19 11:21:57 -05:00
Leah Amelia Chen
503dfae6ff renderer: exempt Powerline cells from minimum contrast requirements
With a minimum contrast set, the colored glyphs that Powerline uses
would sometimes be set to white or black while the surrounding background
colors remain unchanged, breaking up contiguous colors on segments of
the Powerline.

This no longer happens with this patch as Powerline glyphs are now
special-cased and exempt from the minimum contrast adjustment.
2024-08-06 15:28:50 +08:00
Mitchell Hashimoto
ea551990eb renderer: disable window-padding-color=extend in certain scenarios
There are scenarios where this configuration looks bad. This commit
introduces some heuristics to prevent it. Here are the heuristics:

  * Extension is always enabled on alt screen.
  * Extension is disabled if a row contains any default bg color. The
    thinking is that in this scenario, using the default bg color looks
    just fine.
  * Extension is disabled if a row is marked as a prompt (using semantic
    prompt sequences). The thinking here is that prompts often contain
    perfect fit glyphs such as Powerline glyphs and those look bad when
    extended.

This introduces some CPU cost to the extension feature but it should be
minimal and respects dirty tracking. This is unfortunate but the feature
makes many terminal scenarios look much better and the performance cost
is minimal so I believe it is worth it.

Further heuristics are likely warranted but this should be a good
starting set.
2024-08-03 21:56:19 -07:00
Mitchell Hashimoto
ed1c163c7b renderer/opengl: support window-padding-color=extend 2024-08-03 16:29:17 -07:00
Mitchell Hashimoto
4398896905 renderer/opengl: strikethrough as sprite 2024-04-22 10:30:27 -07:00
Mitchell Hashimoto
43c105c363 renderer: constrain emoji to cell width
Fixes #1402
2024-01-28 09:07:49 -08:00
Mitchell Hashimoto
62a2fdcf88 renderer/opengl: set texture size for constrained glyphs
This wasn't setting the texture size so the glyphs would show up blank
(zero texture size).
2024-01-15 15:04:05 -08:00
Mitchell Hashimoto
62e5234da4 renderer: for constrained cells, offset was being doubled
This helps better preserve the centerline for constrained glyphs
2024-01-07 15:02:56 -08:00
Mitchell Hashimoto
231a2b6369 renderer/opengl: implement fg_constrained 2023-12-16 20:11:37 -08:00
Mitchell Hashimoto
ec8f3d036e renderer/opengl: implement min contrast 2023-12-01 21:55:51 -08:00
Mitchell Hashimoto
8253fc1f31 renderer/opengl: shaders only need one color input 2023-11-17 21:51:07 -08:00
Mitchell Hashimoto
a5066635f0 renderer: do not downsample oversized glyphs
Fixes #696

We should rely on the rasterizer to create glyphs of the proper size,
including doing CPU resizing if necessary.
2023-10-17 10:55:04 -07:00
Mitchell Hashimoto
e0ee5d1763 Revert "Merge pull request #322 from mitchellh/big-glyphs"
This reverts commit 0ffbab00a42ba0fb9a3f2aa02428760df61d03d3, reversing
changes made to 6751087bead34efe1684997503c3764a63607397.
2023-08-24 21:05:33 -07:00
Mitchell Hashimoto
aad4bdb32a renderer/opengl: glyphs that are too wide should be scaled down
U+226A is 1-char wide according to the Unicode database but renders very
wide in many fonts. This causes it to leak outside of its grid cell. We
should scale down by x the same way we scale down by y.
2023-08-24 14:19:38 -07:00
Mitchell Hashimoto
cf519bcd75 Use procedurally generated sprites for cursors rather than shaders 2023-03-04 15:14:10 -08:00
Mitchell Hashimoto
379072566f remove underline support from shaders since we now use sprites 2022-11-27 16:18:00 -08:00
Mitchell Hashimoto
18de7cd2ef Move shaders into the renderer dir 2022-11-15 13:10:43 -08:00