This PR addresses #2125 for the Metal renderer. Both options are
available: "Apple-style" blending where colors are blended in a wide
gamut color space, which reduces but does not eliminate artifacts; and
linear blending where colors are blended in linear RGB.
Because this doesn't add support for linear blending on Linux, I don't
know whether the issue should be closed or not.
### List of changes in no particular order
- We now set the layer's color space in the renderer not in the apprt
- We always set the layer to Display P3 color spaces
- If the user hasn't configured their `window-colorspace` to
`display-p3` then terminal colors are automatically converted from sRGB
to the corresponding Display P3 color in the shader
- Background color is not set with the clear color anymore, instead we
explicitly set all bg cell colors since this is needed for minimum
contrast to not break with dark text on the default bg color (try it
out, it forces it fully white right now), and we just draw the
background as a part of the bg cells shader. Note: We may want to move
the main background color to be the `backgroundColor` property on the
`CAMetalLayer`, because this should fix the flash of transparency during
startup (#4516) and the weirdness at the edge of the window when
resizing. I didn't make that a part of this PR because it requires
further changes and my changes are already pretty significant, but I can
make it a follow-up.
- Added a config option for changing alpha blending between "native"
blending, where colors are just blended directly in sRGB (or Display P3)
and linear blending, where colors are blended in linear space.
- Added a config option for an experimental technique that I think works
pretty well which compensates for the perceptual thinning and thickening
of dark and light text respectively when using linear blending.
- Custom shaders can now be hot reloaded with config reloads.
- Fixed a bug that was revealed when I changed how we handle
backgrounds, page widths weren't being set while cloning the screen.
### Main takeaways
Color blending now matches nearly identically to Apple apps like
Terminal.app and TextEdit, not *quite* identical in worst case
scenarios, off by the tiniest bit, because the default color space is
*slightly* different than Display P3.
Linear alpha blending is now available for mac users who prefer more
accurate color reproduction, and personally I think it looks very nice
with the alpha correction turned on, I will be daily driving that
configuration.
### Future work
- Handle primary background color with `CALayer.backgroundColor` instead
of in shader, to avoid issues around edges when resizing.
- Parse color space info directly from ICC profiles and compute the
color conversion matrix dynamically, and pass it as a uniform to the
shaders.
- Port linear blending option to OpenGL.
- Maybe support wide gamut images (right now all images are assumed to
be sRGB).
This commit is quite large because it's fairly interconnected and can't
be split up in a logical way. The main part of this commit is that alpha
blending is now always done in the Display P3 color space, and depending
on the configured `window-colorspace` colors will be converted from sRGB
or assumed to already be Display P3 colors. In addition, a config option
`text-blending` has been added which allows the user to configure linear
blending (AKA "gamma correction"). Linear alpha blending also applies to
images and makes custom shaders receive linear colors rather than sRGB.
In addition, an experimental option has been added which corrects linear
blending's tendency to make dark text look too thin and bright text look
too thick. Essentially it's a correction curve on the alpha channel that
depends on the luminance of the glyph being drawn.
This produces the following keybind, which I believe was intended.
> keybind = cmd+backspace=text:\x15
Matches the cmd+left and cmd+right which are a few lines up.
#3679#3646
closes#2721
This PR resolves the issue where the Quick Terminal was not visible when
pressing the global keybind while a full-screen app was active.
### Changes
- Added new configuration options for `quick-terminal-space-behavior`
- The Quick Terminal will now overlay properly on top of full-screen
applications
#### Behavior
##### `quick-terminal-space-behavior = remain`
- The Quick Terminal will be remain open on the space when switching
spaces.
##### `quick-terminal-space-behavior = move`
- The Quick Terminal will be moved to active space when switching
spaces.
If the title is already the current working directory, hide the
subtitle. Otherwise show the current working directory, like if a
command is running for instance.
This is a re-opening of my original PR because I had to delete my fork
and re-fork it.
Fixes#4703
This changes `unbind` so it always removes all keybinds with the given
trigger pattern regardless of if it is translated or physical.
The previous behavior was technically correct, but this implements the pattern
of least surprise. I can't think of a scenario where you really want to
be exact about what key you're unbinding. And if that scenario does
exist, you can always fix it by rebinding after unbind.
If the title is already the current working directory, hide the
subtitle. Otherwise show the current working directory, like if
a command is running for instance.
Signed-off-by: Tristan Partin <tristan@partin.io>
Fixes#4509
Our config has a replay system so that we can make changes and reproduce
the configuration as if we were reloading all the files. This is useful
because it lets us "reload" the config under various conditions (system
theme change, etc.) without risking failures due to world state changing
(i.e. config files change or disappear).
The replay system assumed that all diagnostics were reproducible, but
this is not the case. For example, we don't reload `config-file` so we
can't reproduce diagnostics that come from it.
This commit adds a new `diagnostic` replay step that can be used to
store non-reproducible diagnostics and `config-file` is updated to use
it.
Also establishes a foundation for Wayland support and fixes a minor bug
(GTK windows remaining opaque when `background-opacity` is set to 1 on
startup and later updated to less than 1 with a config reload)
Can't update the Zig cache hash myself since I'm currently in China and
my proxy's broken for some reason :(
See also #4361, part of #4626
This is achieved by rendering to an alpha-only context rather than a
normal single-channel context, and adjusting the brightness at which
CoreText thinks it's drawing the glyph, which affects how it applies
font smoothing (which is what `font-thicken` enables).
Move the newly added *+insert keybinds to before the ctrl+shift+*
keybinds. This is needed to have the ctrl+shift keybinds be the ones
that show up in the menu.
This is achieved by rendering to an alpha-only context rather than a
normal single-channel context, and adjusting the brightness at which
coretext thinks it's drawing the glyph, which affects how it applies
font smoothing (which is what `font-thicken` enables).
closes#4328closes#3970
makes this possible now
```
keybind = performable:ctrl+c=copy_to_clipboard # copy if theres a selection else send sigint
keybind = ctrl+v=paste_from_clipboard
```
Closes https://github.com/ghostty-org/ghostty/issues/4089
Gave it a shot and implemented the custom css loading.
My general idea is to use a provider for each stylesheet the user wants
to load and then when the config changes unload them and create new
providers.
A separate provider has to be used for each stylesheet the user wants to
load, since when the provider loads the css it clears all the previously
loaded styles, so in effect we cannot use one provider to load multiple
stylesheets, but maybe there is a better way to overcome this limitation
which I'm not seeing.
The documentation used to say e.g. "The format of the color is the same
as the `background` configuration; see that for more information.", yet
`background` left the format actually undocumented.
To avoid people having to jump around the docs to find out the supported
formats, the prose for the formats is repeated for each color.
I dug around a bit to find out that named colors from the default X11
map are also a supported format (`cursor-color = purple` works fine), so
that's now documented too.
