This code will eventually be used by RAIL as well, so let's
split it out now.
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
Use the common abnt2 variant, instead of the niche nativo one.
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
Exposay was done as a showcase for what we could do with Weston and an
efficient compositing pipeline. This was mostly with the old
vendor-specific Raspberry Pi backend which could actually process that
many surfaces bypassing the GPU.
Given enough bitrot, Exposay is now pretty exemplary as what _not_ to do
in a Weston shell - particularly the way it manipulates existing
weston_views rather than create its own non-destructive stack.
As it's annoying technical debt, a terrible example to others, and not a
very compelling showcase in 2022, just delete it.
Signed-off-by: Daniel Stone <daniels@collabora.com>
We move this into a function for when we add horizontal wheel support
later.
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
We currently hardcode a 60Hz update rate for the rdp backend.
In some cases it may be useful to override this to increase the rate
for a faster monitor, or to decrease it to reduce network traffic.
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
Instead of hard coding a 16ms refresh interval, use the refresh rate
from the current mode to determine when the next frame should be.
Currently, we still hard code the refresh rate, so this will end up
with roughly the same value we've been using, but in the future
we'll allow setting it via command line.
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
We already have a way for a single RDP client connection to be
passed from a parent process to a child using a combination
of environment variable (RDP_FD) and env var (--env-socket)
This patch allows a bound socket fd (as opposed to a client
connection) to be established in a parent process and provided
to the rdp backend. WSLg uses this to set up an AF_VSOCK
socket for communication between a Windows RDP client and a
weston compositor running under a hypervisor.
Co-authored-by: Hideyuki Nagase <hideyukn@microsoft.com>
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
These events carry the 4th and 5th mouse buttons, so
we should propagate them. We also need to use pointer
frames to ensure the buttons are properly paired with
the pointer co-ordinates.
Unfortunately, there is no way in RDP to determine if
a mouse event and an extended mouse event should be in
the same pointer frame, so this is the best we can do.
We also enable extended mouse events so they'll be used.
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
Print a message when presentation switches to/from zero-copy mode.
This makes it easier to understand whether the compositor DMA-BUF
feedback was effective.
Signed-off-by: Simon Ser <contact@emersion.fr>
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>
This is a minor re-work of how we de-activate and activate the surfaces
in desktop-shell. As activate() is being used for handling keyboard
input events, this basically rectifies that such that activation
happens only if the passed surface is different from the currently
focused surface.
Fixes: #593
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Rather than punching through to set the surface as a solid colour,
attach an actual weston_buffer to it instead.
This becomes the first user of attaching non-client-generated buffers
to a weston_surface. As a result, it is necessary to introduce a
function which will allow compositors and shells to attach a buffer to a
surface. weston_surface_attach_solid() is therefore introduced as a
special-purpose helper which will attach a solid buffer to a
weston_surface.
It is not intended as a general-purpose mechanism to allow compositors
to attach client-generated buffers to surfaces, as doing so would have
unknown effects on this core part of the compositor itself.
Signed-off-by: Daniel Stone <daniels@collabora.com>
When we're checking to see if a view is suitable to go on a plane, check
for (and reject) solid-colour buffers.
Signed-off-by: Daniel Stone <daniels@collabora.com>
The Pixman renderer keeps its own reference to buffers when attached to
surfaces, through its surface state: just use that instead.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Refactor the buffer-type check slightly so we can handle solid-color
buffers, which we do exactly nothing with.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Currently solid-colour displays (e.g. the background for fullscreen
views) is implemented by a special-case weston_surface which has no
buffer attached, with a special punch-through renderer callback to set
the colour.
Replace this with a weston_buffer type explicitly specifying the solid
colour, which helps us eliminate yet more special cases in renderers and
backends.
This is not handled yet in any renderer or backend, however it is also
not used by anything yet. Following commits add support to the renderers
and backends.
Signed-off-by: Daniel Stone <daniels@collabora.com>
When the renderer/backend indicate that they do not need a surface's
buffer content to be preserved, most often because they have copied it,
simply downgrade the buffer reference to 'will not access', rather than
drop the buffer reference altogether.
Signed-off-by: Daniel Stone <daniels@collabora.com>
In the original conception, a weston_buffer_reference indicated that the
underlying contents of the wl_buffer would or could be accessed, so
wl_buffer.release must not be sent until the last reference was
released, as the compositor may still use it.
This meant that renderers or backends which copied the buffer content -
such as the GL renderer with SHM buffers - could only send a buffer
release event to the client by 'losing' the buffer reference altogether.
The main side effect is that `weston-debug scene-graph` could not show
any information at all about SHM buffers when using the GL renderer, but
it also meant that renderers and backends grew increasingly exotic
structures to cache information about the buffer.
Now that we have an additional buffer-reference mode (still referring to
the weston_buffer/wl_buffer, but not going to access its content), we
can allow the weston_buffer_reference and weston_buffer to live as long
as the buffer itself, even if we do send a release event.
This will enable a bunch of backend and renderer deduplication, as well
as finally making scene-graph more useful.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Add a mode argument to weston_buffer_reference which indicates whether a
buffer's storage may/will be accessed, or whether the underlying storage
will no longer be accessed, e.g. because it has been copied. This will
be used to retain a pointer to the weston_buffer whilst being able to
send a release event to the client.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Keep the weston_buffer alive for as long as at least one of the
underlying wl_buffer or a backend usage exists.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Make sure we don't die if we're asked to flush the damage on a SHM
buffer which has subsequently been destroyed.
Signed-off-by: Daniel Stone <daniels@collabora.com>
We currently allow a weston_buffer to outlive the underlying wl_buffer
iff the renderer/backend has cached it. Currently the 'is this buffer
valid?' test relies on looking for the validity of the weston_buffer
itself; shift these tests to looking at the validity of the underlying
resource.
Signed-off-by: Daniel Stone <daniels@collabora.com>
y_inverted meant that the buffer's origin was (0,0), and non-inverted
meant that the buffer's origin was (0,height). In practice, every buffer
was 'inverted' into our natural co-ordinate space that we use
everywhere.
Switch to using an explicit origin enum to make this more clear.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Rather than calling accessors (wl_shm_buffer_get etc) to figure out
which type our buffer is, just look in the structure.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Rather than open-coding various resource -> type accessors, just stick a
type enum in the buffer struct.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Rather than only filling weston_buffer information when we first come to
use it, add an explicit hook so we can fill the dimensions the first
time the buffer's attached.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Make sure we only import dmabufs where the underlying pixel_format is
known: if we can't reason about the buffer content, we're not entirely
likely to be able to display it well.
Signed-off-by: Daniel Stone <daniels@collabora.com>
When we first see a buffer attached, we create a weston_buffer for it.
The weston_buffer doesn't contain any useful information in and of
itself; that's left to renderers to populate later.
Switch this to doing it in the core at the first opportunity, at least
for SHM and dmabuf buffers; EGL buffers will follow in the next commit.
Signed-off-by: Daniel Stone <daniels@collabora.com>
We already have the buffer in the caller, and every no-op implementation
will want to access the buffer. So might as well pass it.
Signed-off-by: Daniel Stone <daniels@collabora.com>
The comment about needing to have destroyed images is somewhat less true
now that we actively avoid doing so.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Fixes: 0b51b02c5e ("gl-renderer: Don't re-import dmabufs")
Hideyuki Nagase
Daniel Stone
Derek Foreman
Brenton DeGeer
Simon Ser
Leandro Ribeiro
Marius Vlad