Continuing along the same lines as the prior commit, the goal
of this commit is to remove the buffer transformation that was
part of uploading the texture to the GPU provided surface.
In order to do so:
* The sense of our local textures needs to change from bgra32 to rgba32.
bgra32 was a hangover from earlier versions of our window crate that
allowed direct-to-fb writes in software mode. We had to pick bgra32
for that for the broadest OS compatibility. I believe that that
constraint has been totally removed, although there is a chance that
this will flip the colors on macos.
* There was an additional linear-to-srgb conversion inlined in that
buffer transformation. I have no idea where that is needed because
the source data is carefully constructed as SRGB. I don't yet know
how to signal that, but for now I've moved that gamma correction
into the shader when we sample the texture.
With this change, timg playback now has vtparse as the hottest
region of code.
refs: #537
Two issues highlighted by profiling:
* Clearing the texture takes a non-trivial percentage of the profile.
The docs suggest that it is better to create a new texture than
to update large portions of a texture, so add some plumbing so
that we can do that in the first texture-full case.
* Next on the list is the code that translates from linear BGRA to
SRGBA. This is present for reasons that I believe are now legacy,
but for the moment: those two primitives now have faster and
easier implementations, so simplify to those.
This improves the timg video playback performance by ~10% for me.
refs: #537
The leftmost pixel was being set to at least 1 by the scale
function.
Fix that up by computing the x coordinate without calling
the scale function.
refs: https://github.com/wez/wezterm/issues/536
The previous behavior was to always treat ctrl-alt as altgr on Windows,
this has been done to better support altgr through a VNC session,
but this is very unintuitive when you don't need this behavior.
ref: #472
This is to support <https://github.com/wez/wezterm/issues/291>.
The window resized event happens asynchronously wrt. processing
a window resize, triggering at the end of the normal window
resize handling.
This commit introduces the notion of whether we are in full screen
mode or not in the underlying event callback, which is useful to
gate the desired feature, which is: when in full screen mode,
increase the padding for the window to center its content.
While poking around at this, I noticed that we weren't passing
the per-window config down to the code that computes the quad
locations for the window.
This commit also changes the font size increase/decrease behavior
so that in full screen mode it doesn't try to resize the window.
```lua
local wezterm = require 'wezterm';
wezterm.on("window-resized", function(window, pane)
local window_dims = window:get_dimensions();
local pane_dims = pane:get_dimensions();
local overrides = window:get_config_overrides() or {}
if not window_dims.is_full_screen then
if not overrides.window_padding then
-- not changing anything
return;
end
overrides.window_padding = nil;
else
-- Use only the middle 33%
local third = math.floor(window_dims.pixel_width / 3)
local new_padding = {
left = third,
right = third,
top = 0,
bottom = 0
};
if overrides.window_padding and new_padding.left == overrides.window_padding.left then
-- padding is same, avoid triggering further changes
return
end
overrides.window_padding = new_padding
end
window:set_config_overrides(overrides)
end);
return {
}
```
I've kept resizing in there because it doesn't appear to render
a border in mutter and seems useful.
I think I'll probably change WindowDecorations to bitflags so
that the user can control this, but first need to verify what
windows supports for this.
Connect the gui to the new shaping logic; this means that we
can now correctly render fg/bg color when the cursor moves
through the cells that comprise a ligature.
refs: https://github.com/wez/wezterm/issues/478
This function is intended to deal with certain kinds of ligatures
and certain combining sequences that don't have corresponding glyphs.
It isn't hooked up to the gui yet, but does have unit tests that
are probably mostly correct.
refs: https://github.com/wez/wezterm/issues/478
https://learnopengl.com/Advanced-Lighting/Gamma-Correction suggests
some good practices:
* Only enable SRGB output on the final draw call, so that all prior
stages can operate on linear values and avoid converting to/from
linear multiple times.
* The SRGBA textures automatically linearize when sampled, but:
* The RGB data must be SRGB (non-linear)
* The A channel is assumed to be linear!
This commit nudges us closer to that by:
* Converting the freetype coverage map from its linear value to
non-linear when rasterizing.
* Splitting the shader files into one per stage (background, lines,
glyphs) and only setting outputs_srgb for the glyph stage
refs: #491
A couple of times today while debugging things on wayland, I lost
keyboard input to wezterm.
I don't know if that is strictly a wezterm bug, or just a general
wayland bug (not long after, the whole mutter session hung, and
somehow wedged all processes with my uid).
So, this is a quick stab in that direction.
This fixes a longstanding issue under mutter where client side
decorations are in use. The decorations were being drawn too
early in the initialization of the window which could leave them
off-screen and weird. This was masked by a couple of mutter
related bugs with client side decorations.
With these changes I now get sane decorations under mutter,
and the toggle fullscreen action is now enabled as well!
closes: #224
However, I'm not able to create wayland windows any more on my nvidia
system (either with or without this change).
I don't know if this is specific to my nvidia drivers or something else
:-/
refs: https://github.com/wez/wezterm/issues/476
Dead key processing respects the
`send_composed_key_when_left_alt_is_pressed` and
`send_composed_key_when_right_alt_is_pressed` options.
See doc changes included in this commit for more info.
refs: https://github.com/wez/wezterm/issues/410
* Adds `CopyTo` and `PasteFrom` assignments that specify the
destination/source.
* Adds `default_clipboard_copy_destination` and `default_paste_source`
config options that specify the default destination/source for
existing `Copy` and `Paste` operations (for @bew)
* Deprecating `PastePrimarySelection` in favor of `PasteFrom`.
* Added `CTRL-Insert` -> `Copy` (for @Babar)
Aside from the new key assignment, these changes shouldn't change
the default behavior, but do make it easier to consider changing
that in a later commit.
They should allow for example:
* Set `default_clipboard_copy_destination = "PrimarySelection"` to
prevent populating the clipboard by default when using the mouse.
* Overriding the CTRL-Insert, CTRL-SHIFT-C to explicitly populate
the clipboard
* Set `default_paste_source = "PrimarySelection"` for middle click
to paste the selection.
* Overriding SHIFT-Insert, CTRL-SHIFT-V to explicitly paste from
the clipboard.
refs: #417
The heart of this issue was that the resize callbacks have two
layers of state; one in the low level window and one in the application
level window.
On Windows, the system triggers the low level callback prior to
opengl being initialized. Since the application level depends on
the opengl state, there are some code paths where it NOPs and
returns early if opengl isn't yet initialized.
When the system-wide display scaling is set to say 200%, the application
layer can't know the effective DPI of the window it is creating because
it doesn't know which monitor will be used or what its DPI will be.
New windows are created at the default DPI of 96, and we rely on the
resize events to detect the actual DPI and adjust the scaling in
the window.
The early call of the resize callback meant that the low level and
application level size/dpi state was out of sync and the result was
that the window had half as many pixels as it should, but that the
terminal model was still sized as though it had the correct amount
(twice as many as visible). This resulted in the window being too
small for the viewport.
The resolution is simple: we now suppress emitting the resize processing
until opengl has been initialized.
The test scenario for this is:
* Set system scaling to 100%
* Launch wezterm
* Set system scaling to 200%
* Observe that wezterm scales to match
* Press CTRL-SHIFT-N to spawn a new window
* Observe that the new window size matches the other window (previously
this one would be half the size)
While I was looking at this, I noticed that the manifest didn't
match the DPI awareness that we have in the code, so update that.
refs: https://github.com/wez/wezterm/issues/427
This adopts a similar technique to that used to pass the wezterm
config to the term crate, but this time it is for passing it to
the window crate.
The use_ime option has been ported over to this new mechanism.
Hooks up toggling fullscreen mode on macos, with plumbing for
other systems.
I prefer not to use the "modern fullscreen" mode because I find
the transition animations in macOS are horrendously slow.
I'll make an option to allow selecting whether that is used or not
in a follow-on diff.
refs: https://github.com/wez/wezterm/issues/177
When we decode a key event from X11 into a `KeyCode::Char(_)` variant,
that result has already factored in the result of the SHIFT modifier
state.
That makes SHIFT largely useless for unicode keys; we do want to
preserve the SHIFT modifier for keys such as the arrow keys.
This commit removes SHIFT from the `KeyEvent::modifiers` for
`KeyCode::Char(_)` variants so that those modifiers don't get
in the way of keymap lookups.
refs: https://github.com/wez/wezterm/issues/394
I didn't recreate precisely the situation in the issue, but I
tried pressing both `AltGr 8` and `CTRL ALT 8` with a DEU
layout active and both now result in `[` being emitted.
refs: #392
Revise logging so that we use info level for things that we want
to always log, and adjust the logger config to always log info
level messages.
That means shifting some warning level logs down lower to debug level so
that they aren't noisy.
closes: https://github.com/wez/wezterm/issues/388
https://wiki.lazarus.freepascal.org/Cocoa_DPI states that the dpi
on macOS is 72. That matches up to the experimental results reported
in #332 (in which 74.0 appears about the right size).
This commit introduces a `DEFAULT_DPI` constant that is set to 72 on
macOS and 96 on other operating systems.
The result of this is that a 10 point Menlo font now appears to be
the same size in Terminal.app and WezTerm.app.
refs: https://github.com/wez/wezterm/issues/332
This commit improves input processing on macOS; passing the keyUp
events to the input context is required for dead keys to correct
process their state transitions.
In addition, we weren't passing key events through if any modifiers
were down; for dead keys we need to allow Option through.
This commit rigs up a little bit of extra state to avoid double-emitting
key outputs from the input context.
Lastly, the virtual key code is passed through to the KeyEvent to
enable binding to raw keys per 61c52af491
refs: #357
This commit is a bit noisy because it also meant flipping the key map
code from using the termwiz input types to the window input types, which
I thought I'd done some time ago, but clearly didn't.
This commit allows defining key assignments in terms of the underlying
operating system raw codes, if provided by the relevant layer in the
window crate (currently, only X11/Wayland).
The raw codes are inherently OS/Machine/Hardware dependent; they are the
rawest value that we have available and there is no meaningful
understanding that we can perform in code to understand what that key
is.
One useful property of the raw code is that, because it hasn't gone
through any OS level keymapping processing, its value reflects its
physical position on the keyboard, allowing you to map keys by position
rather than by value. That's useful if you use software to implement
eg: DVORAK or COLEMAK but want your muscle memory to kick in for some of
your key bindings.
New config option:
`debug_key_events = true` will cause wezterm to log an "error" to stderr
each time you press a key and show the details in the key event:
```
2020-12-06T21:23:10.313Z ERROR wezterm_gui::gui::termwindow > key_event KeyEvent { key: Char('@'), modifiers: SHIFT | CTRL, raw_key: None, raw_modifiers: SHIFT | CTRL, raw_code: Some(11), repeat_count: 1, key_is_down: true }
```
This is useful if you want to figure out the `raw_code` for a key in your
setup.
In your config, you can use this information to setup new key bindings.
The motivating example for me is that because `raw_key` (the unmodified
equivalent of `key`) is `None`, the built-in `CTRL-SHIFT-1` key
assignment doesn't function for me on Linux, but I can now "fix" this in
my local configuration, taking care to make it linux specific:
```lua
local wezterm = require 'wezterm';
local keys = {}
if wezterm.target_triple == "x86_64-unknown-linux-gnu" then
local tab_no = 0
-- raw codes 10 through 19 correspond to the number key 1-9 positions
-- on my keyboard on my linux system. They may be different on
-- your system!
for i = 10, 20 do
table.insert(keys, {
key="raw:"..tostring(i),
mods="CTRL|SHIFT",
action=wezterm.action{ActivateTab=tab_no},
})
tab_no = tab_no + 1
end
end
return {
keys = keys,
}
```
Notice that the key assignment accepts encoding a raw key code using
a value like `key="raw:11"` to indicate that you want a `raw_code` of
`11` to match your key assignment. The `raw_modifiers` portion of
the `KeyEvent` is used together with the `raw_code` when deciding
the key assignment.
cc: @bew
This allows stashing the raw key identifier from the keyboard layer.
Interpreting this value is hardware and OS dependent.
At this time, only X11/Wayland implementations populate this value,
and there is no way to do key assignment based upon it.
This is basically the same issue as
70fc76a040 but on macOS. Now that we're
using EGL in more places, the same sort of check needs to used in more
places!
Will need to do the same on Windows in a follow-up commit.
refs: #316
Not 100% sure that this is it, but it seems much less likely that
artifacts will appear in conjunction with transparency when the window
shadow effect is disabled; I didn't see the ghosting with this disabled,
but I sometimes dididn't see it with it enabled, so I'm not sure that we
have a 100% reliable reproduction, and thus am not sure that this is a
fix.
I found mention of disabling the shadow in some example code on
stackoverflow when I was first researching this, but it wasn't supplied
with an explanation. Perhaps this is why?
Longer term we might want to be smarter about turning off the shadow
only when the opacity is != 1.0, but at the moment the window layer
can't see the config, so let's just default it off for the moment
until we see if it does the trick.
refs: #310
Wheel events wouldn't get reported to eg: vim in wsl if the
window's X position was larger than the window width due to
mouse wheel messages being reported with screen coordinates
rather than client coordinates.
This commit addresses that.
When allocating space in the texture atlas, we typically use
a small padding to avoid accidentally interpolating textures
into glyphs.
When it comes to rendering images via iterm2 or sixel image
protocols, the image emitted by the user may not exactly fill
the cell dimensions, and due to the how the shader works to
apply those textures we could end up revealing nearby images
in the texture when displaying an unrelated image.
This commit adjusts the texture atlas allocation when making
space for image protocol textures; excess padding based on
an overestimate of the cell dimensions is added to the right
and bottom of the image, guaranteeing that that border will
be filled with transparent pixels.
This is a bit wasteful of texture space, but isn't egregiously
bad and is easy to reason about and makes things look less
janky.
refs: #292
This commit uses the guillotine algorithm to assign rectangles,
which is superior to the dumb algorithm previously in use.
In addition, in the first pass of painting, if we get a texture
space error, we clear the atlas and try again without increasing
it size, which should serve as the ultimate defrag.
Subsequent passes will cause the texture to grow if needed.
refs: #306
This is a bit more involved than I'd like, but it seems more
deterministic than using `TranslateMessage` or `ToUnicode` in all cases.
This commit expands the depth of the keyboard layout probing that
is performed when we detect a changed keyboard layout.
We know detect starting `(Modifier, VK) -> char` for a dead key press,
as well as the map of terminating `(Modifier, VK) -> char` for valid
dead key presses.
This information allows us to simply lookup the mapping without
calling `ToUnicode`. Avoiding `ToUnicode` is desirable because it
maintains a global state and it is unpredictable what else is
manipulating that same state. In particular, for the ESP keyboard
layout where `~` is a dead key that is reached via `AltGr 4`, there
doesn't appear to be a reliable way to extract the correct mapping
from it when calling `ToUnicode` in response to the various KEYUP,
KEYDOWN messages. We could get it if we always called
`TranslateMessage` and only looked at `WM_CHAR`, but that means that
we cannot decompose `WM_CHAR` back to the raw key events when we
need to. Bleh!
Test Plan for this commit:
* With ENG layout active, check that CTRL, ALT and so on have the
intended effect in the terminal; eg: CTRL-C, CTRL-W (in vim).
* Switch to pinyin layout, check that typing still invokes the
IME and that it can insert text
* Switch to DEU. Check that `AltGr m` produces a `mu` symbol.
Check that grave (`\``) (a dead key) doesn't immediately output
anything, then press `e`; that produces an `e` with a grave
diacritic. Grave followed by space emits grave. Grave
followed by grave emits a grave and holds the second grave; pressing
`e` at this point now emits `e` with a grave diacritic.
(This is a difference from the "normal" system behavior, which
would just emit two graves in a row, then a regular `e`).
* Switch to ESP. Check that `AltGr 4` (tilde) doesn't immediately
output anything, then press `n`; that produces an `n` with the
tilde diacritic.
* Change `use_dead_keys = false`. Now verify in DEU that `grave`
just emits grave. In ESP, verify that `AltGr 4` just emits
a tilde.
* Switch back to ENG. Verify that `ALT-space` pops up the system
menu.
refs: #275
refs: #305
Change the cursor to an appropriate one of these when hoving
over and dragging a split.
Fix an issue where we wouldn't always change the cursor when
hovering over a split when multiple splits are present.
There's a few different knobs to turn, but this
commit turns them and we're now able to respect
opacity settings for both OpenGL/CGL and Metal
renderers.
closes: #141
