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Use the helper instead of hand-rolling the logic.
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We can never hit the case where we try to light up an output without
a buffer. output_ensure_buffer() will catch this for now, and when that's
removed, output_basic_test() will catch this case.
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drm_connect_state_init() will set primary_fd to null if no CRTC is active
for the connector and can crash later if the code expects a CRTC (like
when lighting up an output).
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init_plane tries to free a single plane on error, but this is an element
in a calloc'd array by the caller that we should not touch.
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On startup, we fetch the previous MODE_ID blob ID so that
compositors can keep using the previous mode if they want to.
However, that blob doesn't belong to us, it belongs to the
previous DRM master. As a result, we get an error when trying to
destroy it.
Fix this by tracking whether the blob belongs to us or not.
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3811
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Stop trying to maintain a per-file _POSIX_C_SOURCE. Instead,
require POSIX.1-2008 globally. A lot of core source files depend
on that already.
Some care must be taken on a few select files where we need a bit
more than POSIX. Some files need XSI extensions (_XOPEN_SOURCE) and
some files need BSD extensions (_DEFAULT_SOURCE). In both cases,
these feature test macros imply _POSIX_C_SOURCE. Make sure to not
define both these macros and _POSIX_C_SOURCE explicitly to avoid
POSIX requirement conflicts (e.g. _POSIX_C_SOURCE says POSIX.1-2001
but _XOPEN_SOURCE says POSIX.1-2008).
Additionally, there is one special case in render/vulkan/vulkan.c.
That file needs major()/minor(), and these are system-specific.
On FreeBSD, _POSIX_C_SOURCE hides system-specific symbols so we need
to make sure it's not defined for this file. On Linux, we can
explicitly include <sys/sysmacros.h> and ensure that apart from
symbols defined there the file only uses POSIX toys.
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If all connectors and planes already have the right CRTC set, or
are disabled, we can skip the device-wide reset after a VT switch.
I've contemplated using a more fine-grained logic to only reset
the connectors, CRTCs and planes that need to be migrated. However,
writing a correct algorithm for this would be quite involved, and it
doesn't seem worth the trouble anyways.
Closes: https://github.com/swaywm/sway/issues/7956
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We'll need to use a bunch of internal functions from that file in
the next commits.
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Allows the KMS driver to parallelize the modesets, so should be
faster than going through each CRTC one by one.
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This function fetches property IDs. These don't change for the
lifetime of the connector. Instead of refreshing the property IDs
on hotplug (and leaving property IDs unset for disconnected
connectors), only fetch the property IDs when we create the
connector.
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Centralizes the logic to destroy a DRM blob: check whether it's
zero, and print a nice error message.
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No need for this, the backend can be grabbed from the connector.
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We only need base POSIX here.
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- Add POSIX 1993.09 compliance macro in source files that use
"struct timespec";
- Add POSIX 2001.12 compliance macro in source files that use
"struct sigaction" and the SA_SIGINFO macro, or the fchmod()
function;
- Add POSIX 2008.09 compliance macro in source files that use the
getline() function.
These compliance macros are enough for wlroots to compile with the
git-master version of uClibc-ng.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
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Since we only use the backend capabilities here we can simply pass
them in directly. This allows other locations to create an allocator
even if they don't have a backend. They can simply specify the caps
they want instead.
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The protocol is no longer unstable.
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This also fixes a memleak.
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The kernel patches [1] have been merged.
[1]: https://patchwork.freedesktop.org/series/120103/
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We can grab the event loop from the wlr_session instead.
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We can grab the event loop from the wlr_session instead.
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Leave it up to the compositor to decide what to do when a backend
becomes unavailable.
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This makes it easy for compositors to handle situations where the
DRM or libinput backend becomes unavailable. Compositors can listen
the destroy event of the multi backend returned by
wlr_backend_autocreate() and decide what to do.
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We'll need this in the next commit.
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Some users might want to destroy the multi backend when a child
backend is being destroyed. However, they can't destroy the multi
backend if it's already in the process of being destroyed.
The destroy signal was changed to be emitted after destroying child
backends in babdd6ccf757 ("backend: fix use-after-free when destroying
backends"). However, this was done to accomodate for an old
"output_remove" event on backends, which has long been dropped in
favor of wlr_output.events.destroy.
This patch follows the same principle as 5d639394f3e8
("types/output: emit destroy event before destroying global").
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This makes wlroots build in C23 mode.
C23 is more strict and rejects implicit conversions from bool to a
pointer.
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wlr_output.refresh is populated by core wlr_output, and thus will
be zero for a custom mode with an unset refresh rate.
Save the refresh rate from the drmModeModeInfo in wlr_drm_connector
instead.
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3791
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`gcc-14` added a new `-Wcalloc-transposed-args` warning recently. It
detected minor infelicity in `calloc()` API usage in `wlroots`:
../backend/libinput/tablet_pad.c: In function 'add_pad_group_from_libinput':
../backend/libinput/tablet_pad.c:36:38: error: 'calloc' sizes specified with 'sizeof' in the earlier argument and not in the later argument [-Werror=calloc-transposed-args]
36 | group->rings = calloc(sizeof(unsigned int), group->ring_count);
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../backend/libinput/tablet_pad.c:36:38: note: earlier argument should specify number of elements, later size of each element
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It can be useful for compositors to get the real DRM FD instead of
the one from the parent compositor. For instance, some compositors
might want to perform some DRM IOCTLs there to check the driver
name, fetch some DRM resources, etc. This will also be a requirement
for direct scanout on secondary GPUs.
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Allows compositors to figure out whether a DRM backend is
secondary on a multi-GPU setup.
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This is unused.
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This function touches queued_fb/current_fb, which the renderer has
nothing to do with.
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RMFB implicitly performs a modeset to turn off any CRTC which is
using the FB. This prevents seamless transitions between two DRM
masters from working.
Use the new CLOSEFB IOCTL which doesn't turn off anything and leave
it up to the compositor to turn off outputs on shutdown if it wants
to.
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