fix the same issue in the legacy backends, see the previous commit for
details. this commit also removes the x_validate_pixmap function because
it was used only in the get_root_tile function and the fix pretty much
implies and embeds it.
One annoying thing is C23 still defines auto as a storage class despite
it now being used for type inference. As a consequence we must write
"auto const" instead of the more natural "const auto".
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Part of the long running effort to reduce the prevalence of `session_t`.
After this, functions that communicate with X can make use of the error
handling machinary (set_ignore_cookie, set_cant_fail_cookie) without
needing to take a `session_t` parameter.
This commit converts everything to use the new struct `x_connection`,
most of the conversions are mechanical.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
there are two x extensions for working with monitors (especially
multiple): xinerama and randr. xinerama is old, feature-poor and in
general isn't used anymore compared to the randr: new, feature-rich and
widely-used. for some reason we were using both of them, so let's drop
xinerama to keep things simple, clean and small. and to be modern.
the drop was done in three steps:
* first step was to replace all the xinerama-based code with the
randr-based one and to replace or remove all the xinerama mentions;
* second step was to replace the xinerama's terminology with the
randr's one. xinerama was referring only to the word "screen", while
randr refers to multiple words and i think the word "monitor" is the
most suitable for us and, hopefully, clear both to a contributor and
to an end user;
* third step was to refactor the new randr-based code if needed and to
address related todo's (mostly about moving related functions
elsewhere).
all the steps were done well except addressing a leftover todo about
moving the win_update_monitor function to the x.c which wasn't done.
the xinerama-shadow-crop option was renamed to crop-shadow-to-monitor,
but it's previous name is still accepted, has effect and the
deprecation message is printed to preserve backwards-compatibility.
Added the new `clip-shadow-above` configuration and wintype option.
These allow the user to select windows to clip from the shadow region of
other windows, i.e. don't paint shadows on top of them.
This should provide a more useful and userfriendly alternative to the
deprecated `shadow-exclude-reg` option — especially for docks and bars.
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>
Because it needs to be cleared when we reset, so we don't use a freed
fbconfig across reset.
Related: #381
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
blur_kernel_count could be none zero when user set a blur kernel but
didn't enable blur. In that case deinit_render will try to free
elements of blur_kerns_cache, causing a segfault because
blur_kerns_cache is never allocated.
Fixes#209
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Previously, only the WM windows (window manager usually reparents the
application windows under its own window so it can manage them) are
checked for alpha channels. Some of the window managers (e.g. awesome)
acquire alpha channels for all of the WM windows, whether the underlying
application windows have alpha channel or not.
With this change, the application windows are also checked for alpha
channels. If a WM window has alpha but its child doesn't, only the WM
frame will be considered to be semi-transparent. Thus preventing some
unnecessary blurring.
Closes#191
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Currently compton handles window creation event by immediately query all
the information it needs and create a window struct with that
information. However, this is prone to race conditions.
In the future, we want to react to window creation event by creating a
placeholder in the window stack, and only query window information in a
critical section where the X server is grabbed by us.
This commit split struct win into two struct, one as placeholder, the
other for holding actual window information.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Setting glx-swap-method to value other than "undefined" and "buffer-age"
could potentially cause rendering problems. So remove them, the meaning
of the remaining options can be more precisely captured by "use-damage",
so create a new option under that name.
--glx-swap-method is deprecated in favor of the new option --use-damage.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Choose the best vsync method for the user, instead of asking them to
frustratingly try every one of the options to see what works.
With this commit, the `vsync` option will take only a boolean value.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Rational: current workaround for Composite < 0.2 doesn't work with the
GLX backend, it also doesn't handle window border properly. Plus,
Composite 0.2 came out more than a decade ago, it's safe to assume
everyone has it.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
