Simon Ser
6e8998c8a8
Add API to query candidate planes
...
This can be used to implement Wayland's linux-dmabuf-unstable-v1's
feedback mechanism.
Closes: https://gitlab.freedesktop.org/emersion/libliftoff/-/issues/70
2023-02-15 18:20:22 +01:00
Simon Ser
b7a6958bca
ENOSPC is not fatal for test-only commits
...
drm_atomic_plane_check may return it for an invalid SRC coord.
2021-10-08 13:00:40 +02:00
Simon Ser
aa30b8fb97
Log number of atomic test-only commits
2021-09-30 09:41:39 +02:00
Simon Ser
32683879e7
Add newline after function return type
...
Aligns our style with Linux' and Weston's.
2021-08-13 22:02:33 +02:00
Simon Ser
f5a2b541ce
Make liftoff_device_register_all_planes return an int
...
For consistency with liftoff_output_apply.
2021-07-30 16:19:29 +02:00
Simon Ser
61fd4c099a
Make liftoff_output_apply return an int
...
Callers may want to get more details about the failure, in
particular EPERM indicates that the user isn't DRM master (can
happen on VT switch).
2021-07-27 12:28:00 +02:00
Simon Ser
562f8b0af6
Allow to choose which planes are managed by libliftoff
...
Closes: https://github.com/emersion/libliftoff/issues/10
2021-07-01 11:37:10 +02:00
Simon Ser
24abeb923f
Remove DRM_MODE_PAGE_FLIP_EVENT from commit flags
...
It's illegal to request a page-flip event when performing a test-only commit.
The kernel returns EINVAL in this case [1].
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/drm_atomic_uapi.c?id=407ab579637ced6dc32cfb2295afb7259cca4b22#n1318
2020-11-10 16:42:06 +01:00
Simon Ser
679e2bb0cd
Allow caller to pass commit flags
...
When the caller wants to perform a modeset, they will need to pass
DRM_MODE_ATOMIC_ALLOW_MODESET in the atomic commit flags, otherwise the driver
will fail the commit. libliftoff also needs to provide these flags in its
test-only commits.
2020-11-10 16:27:55 +01:00
Simon Ser
f6b4cd6197
Retry atomic commit on EINTR and EAGAIN
...
From the kernel docs:
> -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted. This can
> either be due to a pending signal, or because the driver needs to completely
> bail out to recover from an exceptional situation like a GPU hang. From a
> userspace point of view all errors are treated equally.
We're not handling ERESTARTSYS because it's non-POSIX.
2020-01-13 12:28:39 +01:00
Simon Ser
95d16704b9
Move device_test_commit to device.c
2020-01-13 12:22:47 +01:00
Simon Ser
cfeee41ec1
Allow NULL to be passed to destructors
...
In this case, the destructor will be a no-op. This is similar to free(3)'s
behavior and allows to omit a NULL check for callers.
2019-12-31 20:46:08 +01:00
Simon Ser
49b4f46762
Rename display.c to device.c
...
Forgot to do that when renaming the struct.
2019-11-29 01:51:22 +01:00
