Weston uses a timeout of 2 seconds before it sends scanout
tranches to clients in order to not trigger excessive buffer
reallocations in clients.
`simple-dmabuf-feedback` in turn counts redraws (200) before
exiting. That doesn't work on e.g. 144Hz screens, thus use a
timer here as well.
Signed-off-by: Robert Mader <robert.mader@collabora.com>
(cherry picked from commit 34f7e01c2b)
Using `pixel_format_get_info()` can result in formats being
reported as `UNKNOWN` when used on compositors other than Weston.
As `weston-simple-dmabuf-feedback` somewhat succeeds `wayland-info`
as tool for `zwp_linux_dmabuf_v1` debugging from version 4 on, copy
the approach from the later for these cases.
Signed-off-by: Robert Mader <robert.mader@collabora.com>
(cherry picked from commit 2669853562)
In certain situations these clients crash a lot due to the low
buffer limit. Four buffers is also what EGL allows without blocking
and what is arguably the upper limit of what a compositor should
demand.
Signed-off-by: Robert Mader <robert.mader@collabora.com>
(cherry picked from commit 3e6ef529f8)
Compositors may choose to send multiple scanout or non-scanout
tranches. So instead of assuming that the first respective tranche
contains the format/modifier we're looking for, check all tranches.
While on it, make sure that in case a compositor sends scanout
tranches on the initial feedback, `pick_format_from_scanout_tranche()`
does not unintentionally pick `INITIAL_BUFFER_FORMAT`.
Signed-off-by: Robert Mader <robert.mader@collabora.com>
(cherry picked from commit 46a6b5b448)
This fixes an issue when running simple-dmabuf-feedback:
"wl_display@1: error 1: invalid arguments for wl_surface@3.attach".
As we are not using create_immed request from zwp_linux_dmabuf_v1, we
can't start to use a dma-buf buffer before we process compositor's event
telling us that the creation succeeded.
This was causing problems in the following scenario:
1. buffer is marked to be recreated (because of dma-buf feedback);
2. in buffer_release() event, we destroy the buffer and recreate it;
3. after we recreate it, roundtrip is not called, as we don't want to
block during the drawing loop;
4. buffer status is not being properly tracked, so we are trying to
use a buffer before receiving the event from the compositor telling
us that the creation succeeded.
To fix this, this patch improves buffer status tracking. Now we only
pick a buffer in the drawing loop when it is available. Also, if we have
no buffers available we perform a roundtrip and try again, as we may
have recreated all of them but still didn't have the chance to process
compositor's events telling us that creation succeeded.
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
(cherry picked from commit 7724c5ea38)
It's invalid for a client to pass the compositor's supported version
directly to wl_registry_bind. For instance, under wlroots the client
will bind to wl_output version 4 and crash because it doesn't handle
the new "name" event.
Signed-off-by: Simon Ser <contact@emersion.fr>
Simple client to test the dma-buf feedback implementation. This does not
replace the need to implement a dma-buf feedback test that can be run in
the CI. But as we still don't know exactly how to do this, this client
can be helpful to run tests manually.
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Nikita Tokarchuk
Robert Mader
Leandro Ribeiro
Simon Ser
Marius Vlad