While working on this PR, I introduced a bug where shadow images for
unmapped windows aren't properly recreated after unredirect/redirect.
The shadow image is freed during unredirect, OTOH redirect only set
IMAGE_STALE flags for mapped window, thus the shadow images for unmapped
windows will be missing.
This bug is already fixed in the previous commit. But the testcase is
good to keep nonetheless.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Make unmapped window events work mostly like a mapped window, except
flags set on unmapped windows aren't processed until the window is
mapped.
Hopefully this unifies some of the code paths and reduce corner cases.
Should fix#525
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
So we can bundle this request together with other requests, making
reproducing time critical bugs easier.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This is to allow us sending the root configure request together with
other requests. Making it easier to reproduce timing critical bugs.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Per POSIX, "The c argument is an int, the value of which the application
shall ensure is a character representable as an unsigned char or equal
to the value of the macro EOF. If the argument has any other value, the
behavior is undefined."
https://pubs.opengroup.org/onlinepubs/009604499/functions/isspace.html
Signed-off-by: Nia Alarie <nia@NetBSD.org>
When the screen is unredirected, no window have a shadow image. So the
assertions in win_set_shadow don't hold. But in that case, we don't want
to add damages anyway. So we put them behind a check of whether the screen
is redirected.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
- Fix non-critical memory-leak in `picom.c` and `options.c` where we
don't free all allocated memory before dieing.
- Explicitly allocate new branch in `c2.c` to silence false-positive
memory-leak.
Downstream code expect wid_get_text_prop to return at least 1 string.
However wid_get_text_prop would return 0 strings when the property is
set to an empty string.
Fixes: dc37370a66
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Clear both STALE flags (`IMAGES_STALE = PIXMAP_STALE | SHADOW_STALE`)
when destroying windows (see f493447b33).
Clearing `SHADOW_STALE` as well should eliminate the recreation of a shadow
image for a window currently being destroyed which will cause the
rendering to fail because we can't properly update the flags anymore.
Should fix: #394
Of course, we still use GLX, so we can't completely remove Xlib yet. But
this removes all Xlib uses outside of the backends.
This drops support for COMPOUND_TEXT Xorg strings, so people how wants
multilingual support has to use UTF8, which should be fine since most of
the applications support that.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
If a window receives multiple configure notifies in between 2 frames, we
add all the in between positions into damage, when we really just need
the starting and the end position.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
So we don't need to call c2_match every frame something is fading. Also
saves us from some out-of-critical-section X server queries.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Previously, when some explicitly checked property (e.g.
_NET_WM_WINDOW_OPACITY) changed, it won't trigger a
win_on_factor_change, and the rules will not be re-evaluated. Because
that property stale flag will be cleared after we explicitly check the
property, so it won't be detected as a tracked property change.
Here, we instead set WIN_FLAGS_FACTOR_CHANGED directly when a tracked
property changed.
Fixes: f3ff7eff8c
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Part of the configure notify handling which requires querying the X
server, has been moved into the X critical section.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Rename `popcountl` to `popcntul` to avoid name conflicts with NetBSD
system headers.
Remove the unused `popcount` function.
Closes#502
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
