To preface, I tested the impact of these changes by running
DOOM-fire-zig in a 120x30 window on a ReleaseFast build. I feel that
DOOM-fire-zig is a fairly realistic target when it comes to "high style
use" terminal applications.
1. By adjusting the conditions under which we swap items while inserting
in to our hash table in `RefCountedSet` we can prioritize styles with
many refs, so they're more likely to stay near their target bucket. This
change brought DFZ FPS from ~700 to ~840, or a roughly 20% improvement.
2. By changing how we hash `Style` structs, we can avoid a lot of
unnecessary overhead and benefit from smaller i-cache size as well as
xxHash's better statistical qualities when compared to Wyhash. This
change brought DFZ FPS from ~840 to ~1020, or another roughly 20%
improvement.
These two changes combined represent as roughly 45% improvement over
`main`, which is... pretty good I'd say.
In addition, I've run `vtebench` and there is no significant difference
in the results between this PR and main.
By switching to one-shot hashing of the raw bytes of the struct with
XxHash3 instead of using `autoHash` with Wyhash, a performance gain of
around 20% can be observed in DOOM-fire-zig.
Fixes#2841
We were incorrectly applying the start/end x offset for the first/last
row of every single page. If a selection spanned multiple pages this
would trim data incorrectly.
Unit test updated to cover this case.
Fixes#2332
Two bugs fixed to fix this behavior:
1. Our destination height didn't account for the top-left being
offscreen.
2. We were using the wrong height for the source rectangle. When a rows
param (r=) is specified, the image height and destination height are at
different scales. We were using the viewport scale for the offset but it
should be the image scale.
Fixes#2332
Two bugs fixed to fix this behavior:
1. Our destination height didn't account for the top-left being
offscreen.
2. We were using the wrong height for the source rectangle. When a rows
param (r=) is specified, the image height and destination height are
at different scales. We were using the viewport scale for the offset
but it should be the image scale.
Fixes#2497
While investigating the issue I added an integrity check that found a
problem hiding in the insert logic that was unrelated- in fixing that I
greatly simplified the insert logic.
It turns out that #2497 is ultimately just a case of bad luck,
pathological inputs that result in very non-uniform hashes so the
clustering overwhelms things. The solution was just to add a check and
claim we're out of memory.
I tried adding an entropy folding function to fix the hash a little but
it had a measurable negative impact on performance and isn't necessary
so I've not included it here. Currently there's an open PR to Zig to
[add RapidHash](https://github.com/ziglang/zig/pull/22085), which is the
successor to Wyhash and apparently has much better statistical
characteristics on top of being faster. I imagine it will land in time
for 0.14 so whenever we update to 0.14 we should probably switch our
standard hash function to RapidHash, which I imagine should yield
improvements across the board.
Using the AutoHasher may also be not the best idea, I may explore ways
to improve how we generate our style hashes in the future.
According to the GNOME human interface guidelines, buttons for the main
user actions, such as new, add, open, and back should be placed at the
start of the header bar.
(https://developer.gnome.org/hig/patterns/containers/header-bars.html#header-bar-buttons)
Moving the new tab button to the start of the header bar brings Ghostty
in line with other GNOME applications such as gedit and gnome-terminal.
Fixes#2958
The y was alround bounded but we allowed any x value and assumed the
caller would handle it. This is not the case so we now check the x and
return null if it's out of bounds (same as y, which was already doing
this).
Poor hash uniformity and/or a crafted or unlucky input could cause the
bounds of the PSL stats array to be exceeded, which caused memory
corruption (not good!) -- we avoid such cases now by returning an
OutOfMemory error if we're about to insert and there's an item with a
PSL in the last slot.
Fixes#2921
Our z-index handling was pretty much completely broken, hence I can't
think of a better initial commit message. We were splitting the
placements at the wrong points and just generally putting images in the
wrong z-index. I'm shocked this didn't come up earlier.
Previous logic had multiple issues that were hiding in edge cases of
edge cases with the ressurected item handling among other things; the
added assertIntegrity method finds these issues, the primary one being
an edge case where an ID is present in two different buckets.
Added more comments to explain logic in more detail and fixed a couple
little things like always using `+%` when incrementing the probe pos,
and replacing a silent return on an integrity issue that should be
impossible (`table[item.meta.bucket] != id`) with an assert.
According to the GNOME human interface guidelines, buttons for the main
user actions, such as new, add, open, and back should be placed at the
start of the header bar. (https://developer.gnome.org/hig/patterns/containers/header-bars.html#header-bar-buttons)
Moving the new tab button to the start of the header bar brings Ghostty
in line with other GNOME applications such as gedit and gnome-terminal.
Annotate the node count of all uses of z2d `StaticPath` to verify
correctness, adjusted the size of a couple which were oversized, and
changed all painter calls that take node slices from `StaticPath`s to
use the slice from the wrapped `ArrayList` so that we don't include any
potentially `undefined` nodes at the end of the list, which I think was
causing a crash before.
Fixes#2092
This isn't perfect because it only prevents _new_ splits from being
too small. You can still resize the window to make them smaller. This
just helps prevent the very-easy-to-trigger crash of #2092.
We don't need to do this to macOS because it doesn't crash in the same
way with zero-sized splits.
Long term we should really chase down what breaks in GTK at a root level
when we have zero-sized splits. But this is a quick fix for now to
prevent the easy crash I feel like people might stress test and run into
with the 1.0 release.
From: https://github.com/ghostty-org/ghostty/discussions/2363#discussioncomment-11645228
The justification there makes sense to me and I think it would be a good
change to make. Copied here:
> There are a few bindings that feel a little weird on macOS. My suggestions:
>
> (1) Equalize Splits
> ```
> keybind = shift+opt+equal=unbind
> keybind = ctrl+cmd+equal=equalize_splits
> ```
> The default hijacks the `±` character on US keyboards. Believe it or not, I do use ± in the terminal. Ctrl+cmd+equal matches the arrow key bindings in the Window > Resize Split menu and thus looks more elegant and is easier to memorize.
>
> (2) Jump to Prompt
> ```
> keybind = cmd+up=jump_to_prompt:-1
> keybind = cmd+down=jump_to_prompt:1
> ```
> These are the bindings in Terminal.app. The default shift-cmd-up/down is usually associated with extending a selection. Cmd-up/down are available (they currently act as simple up/down). I bind them additionally to the defaults.
In a [Discord
thread](https://discord.com/channels/1005603569187160125/1319727495473397791)
someone was having problems running Ghostty because they had
accidentally created a directory called `~/.config/ghostty/config`.
Instead of erroring out Ghostty would hang trying to "read" the
directory. Crashes can also happen if the argument to `--config-file` on
the CLI or a recursively loaded config file.
This patch prevents those hangs or crashes by refusing to read anything
but a plain file (symbolic links to plain files continue to work as
well).
Introduces static path methods and a reworked context API that makes
things generally cleaner.
This update incidentally fixed a bug we had before where the corner
triangle shade characters were drawn solid rather than medium shade.
Subsumes #2580 (which has multiple conflicts with main due to recent
changes to metrics); I figured it'd be easier to just implement it this
way.
#2580 claimed to solve #2487 but I don't think it really does- ideally
we can think of a good way to configure each individual cursor type, but
I don't wanna just do something ad hoc and add a bunch of config keys
blindly so I limited the scope of this.
Unicode 16 added "Separated Block Quadrants" from CP 0x0x1CC21 through
0x1CC2F:
To test, use the following command:
```
printf "\U0001CC21\U0001CC22\U0001CC23\U0001CC24\U0001CC25\U0001CC26\U0001CC27\U0001CC28\U0001CC29\U0001CC2A\U0001CC2B\U0001CC2C\U0001CC2D\U0001CC2E\U0001CC2F\n"
```
Which should look like this:
cc @qwerasd205 @rockorager
This adds a `+show-face` CLI action to show what font face Ghostty will
use to display a particular codepoint. The codepoint can either be
specified via a single integer or via UTF-8 encoded string.
## Description
Introduce a setting allowing to customize the behavior of the quick
terminal when it loses focus. By default, the quick terminal will
automatically hide. However, you can now configure it to remain open by
setting `quick-terminal-autohide: false`.
Resolves#2558
...unless ~/.config/ghostty/config already exists, then that is opened.
(Or whatever $XDG_CONFIG_HOME points to.)
If both files exists, ghostty reads first the one in ~/.config/ghostty/config
and then the one in Application Support, and merges the settings. In that case,
the menu item opens the file at ~/.config.
Fixes#2890.
Introduce a setting allowing to customize the behavior of the quick terminal
when it loses focus. By default, the quick terminal will automatically hide.
However, you can now configure it to remain open by setting
`quick-terminal-autohide: false`.
Resolves#2558
We used a mix of shorthand and octal representations when printing these
control characters. Standardize on the shorter, more readable shorthand
notation because that's what we use in the other shell integration
scripts.
We used a mix of shorthand and octal representations when printing these
control characters. Standardize on the shorter, more readable shorthand
notation because that's what we use in the other shell integration
scripts.
When outside the viewport, other actions such as scrolling might be
happening, and doing an early return when clearing hyperlinks prevents
scrolling upwards.
We reposition the check, and do not early return so we can process
scrolling when it happens.
This fixes#2645, restoring the ability to scroll upwards while
retaining the behavior of hyperlinks when outside the viewport.
(and, yes I still permit my commits to be relicensed to MIT)
## Before
[Screen Recording 2024-12-21 at
01.36.02.webm](https://github.com/user-attachments/assets/bf144455-ff26-4d4e-9eff-c3d632c02c17)
## After
[Screen Recording 2024-12-21 at
01.36.44.webm](https://github.com/user-attachments/assets/308a795f-971d-4807-b4ba-91bd3685c185)
Given https://github.com/ghostty-org/ghostty/discussions/2994 revert
f1728f594a.
Add documentation to help point people towards the discussion and needed
changes to handle `COMP_WORDBREAKS` not including expected characters.
We know macOS and nixos defaults to including `=` so explicit handling
to change behaviour should only be required if it turns out some
systematically used tool brings in a completion function that changes
`COMP_WORDBREAKS` away from the default. (something they should not be
doing)
If necessary I can create a issue to track handling unexpected word
breaks usage. This change improves the current completions.
I agree to re-license my commits to MIT
