Commit graph

28 commits

Author SHA1 Message Date
Damian Hobson-Garcia
e6944da134 waylandsink: use GstMemory instead of GstBuffer for cache lookup
The GstMemory objects contained in a GstBuffer could be replaced
by an upstream element, which would break the association beteen
the GstBuffer and the wayland wl_buffer, make the cache lookup
results incorrect.
This patch changes the cache lookup to use the first GstMemory
in a buffer instead.  For multi-plane buffers, this assumes that
all of the GstMemory(s) will always be moved together as a set,
and that the same (first) GstMemory isn't used with different
combinations of other GstMemory(s).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1401>
2020-07-15 14:35:06 +00:00
Damian Hobson-Garcia
ff5f264045 waylandsink: Keep per display wayland buffer caches
Instead of attaching a single wayland wl_buffer to each GStBuffer as qdata,
keep a separate cache for each display.
A unique wl_buffer and associated metadata is created for each display.
This allows for sharing of GstBuffer objects between multiple
displays, such as when using tee elements.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1401>
2020-07-15 14:35:06 +00:00
Haihua Hu
d77de13ca6 waylandsink: add wl_registry.global_remove listener
when hotplug display, wayland client will call this listener
to notify client do clean up. Temporarily set a dummy function
here to avoid app abort

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1327>
2020-06-09 19:54:24 +00:00
Niels De Graef
67bb17e4fa waylandsink: Implement XDG-shell stable support
[wl_shell] is officially [deprecated], so provide support for the
XDG-shell protocol should be provided by all desktop-like compositors.
(In case they don't, we can of course fall back to wl_shell).

Note that the [XML spec] is provided by the `wayland-protocols`
git repository, which is provided by the Wayland project.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/897

[wl_shell]: https://people.freedesktop.org/~whot/wayland-doxygen/wayland/Client/group__iface__wl__shell.html
[deprecated]: 698dde1958
[XML spec]: https://github.com/wayland-project/wayland-protocols/blob/master/stable/xdg-shell/xdg-shell.xml
2019-03-04 10:58:54 +00:00
Niels De Graef
c461f22bef waylandsink: prefix wl_shell-specific variables with wl_ 2019-03-04 10:58:54 +00:00
Wonchul Lee
2ae381e2a3 waylandsink: Avoid race condition on multi-threaded client
When waylandsink is used on some other thread than the main wayland
client thread, the waylandsink implementation is vulnerable to a

condition related to registry and surface events which handled in
seperated event queue.

The race that may happen is that after a proxy is created, but
before the queue is set, events meant to be emitted via the yet to

set queue may already have been queued on the wrong queue.

Wayland 1.11 introduced new API that allows creating a proxy
wrappper which can help to avoid this race condition.
2018-12-13 17:20:04 +00:00
Matteo Valdina
e0535b44d4 waylandsink: relaxed wl_shell check and added zwp_fullscreen_shell.
Relaxed the wl_shell interface constrains, so application that
pass via GstContext the wl_surface can use waylandsink in a
compositor without wl_surface and zwp_fullscreen_shell.

Added support for zwp_fullscreen_shell.

https://bugzilla.gnome.org/show_bug.cgi?id=796772
2018-07-25 07:53:09 -04:00
Sebastian Dröge
9b89f58cae ext: Fix various compiler warnings with clang
wldisplay.c:179:15: error: comparison of unsigned enum expression < 0 is always false [-Werror,-Wtautological-compare]
  if (shm_fmt < 0)
      ~~~~~~~ ^ ~

gstsegmentation.cpp:419:40: error: implicit conversion from 'int' to 'char' changes value from 255 to -1 [-Werror,-Wconstant-conversion]
          filter->cvFG->imageData[j] = 255;
                                     ~ ^~~

https://bugzilla.gnome.org/show_bug.cgi?id=775112
2016-11-25 23:47:15 +02:00
Sebastian Dröge
95ed2cf687 wldisplay: Don't compare a guint with < 0
-1 is the "invalid" value, compare to it directly.

CID 1394490.
2016-11-23 18:45:42 +02:00
Nicolas Dufresne
5d01d3bbb8 waylandsink: Rework dmabuf support
Simplify and fix some of the show_frame logic.

https://bugzilla.gnome.org/show_bug.cgi?id=711155
2016-11-03 15:37:46 -04:00
Fabien Dessenne
2ad337e440 waylandsink: support linux dmabuf protocol
Support the wayland zwp_linux_dmabuf_unstable_v1 protocol.
SHM formats and DMABuf formats are exposed differently in caps: the
DMABuf formats are flagged with GST_CAPS_FEATURE_MEMORY_DMABUF.
No buffer pool is proposed for DMABuf buffers, it is the upstream
element responsibility to provide with such buffers.

https://bugzilla.gnome.org/show_bug.cgi?id=711155
2016-11-03 15:37:46 -04:00
Nicolas Dufresne
ba71a392a6 waylandsink: Destroy viewporter when done
https://bugzilla.gnome.org/show_bug.cgi?id=738079
2016-09-21 15:08:34 -04:00
Nicolas Dufresne
4bb5823cea waylandsink: Make wl_viewporter optional
This makes the viewporter interface optional. The end result is
obviously far from optimal, though it greatly helps testing on older
compostitors or gnome-wayland. We can make it strictly needed later when
this new interface get widely adopted.
2016-09-15 14:14:10 -04:00
Scott D Phillips
a5ead086f9 wayland: Update from scaler to viewporter protocol
Signed-off-by: Scott D Phillips <scott.d.phillips@intel.com>

https://bugzilla.gnome.org/show_bug.cgi?id=767671
2016-09-15 12:10:59 -04:00
Matthew Waters
16dec9eacc wayland: fix null pointer dereference on error
gnome-shell doesn't the support wl_scaler interface which makes creating a
wayland display fail creation.

Found in the generic state changes test
2016-03-17 02:28:32 +11:00
George Kiagiadakis
abcc8eafed waylandsink: rename GstWlDisplay::formats array to shm_formats
These formats are specific to the wl_shm interface. We are going
to add dmabuf formats later as well.
2015-10-14 22:05:52 +02:00
George Kiagiadakis
3058fe8d98 waylandsink: take into account the case where a pool may be destroyed together with GstWlDisplay
There are two cases covered here:
1) The GstWlDisplay forces the release of the last buffer and the pool
   gets destroyed in this context, which means it unregisters all the
   other buffers from the GstWlDisplay as well and the display->buffers
   hash table gets corrupted because it is iterating.
2) The pool and its buffers get destroyed concurrently from another
   thread while GstWlDisplay is finalizing and many things get corrupted.
2014-10-11 14:57:14 +02:00
George Kiagiadakis
4377a5d71c waylandsink: remove the ugly gst_wl_display_stop() now that this mechanism is not needed anymore
Because we no longer have a custom buffer pool that holds a reference
to the display, there is no way for a cyclic reference to happen like
before, so we no longer need to explicitly call a function from the
display to release the wl_buffers.

However, the general mechanism of registering buffers to the display
and forcibly releasing them when the display is destroyed is still
needed to avoid potential memory leaks. The comment in wlbuffer.c
is updated to reflect the current situation.
2014-10-11 14:57:13 +02:00
George Kiagiadakis
9807d58b01 waylandsink: rework the mechanism for keeping buffers out of the pool until wl_buffer::release
This also removes the GstWlMeta and adds a wrapper class for wl_buffer
which is saved in the GstBuffer qdata instead of being a GstMeta.

The motivation behind this is mainly to allow attaching wl_buffers on
GstBuffers that have not been allocated inside the GstWaylandBufferPool,
so that if for example an upstream element is sending us a buffer
from a different pool, which however does not need to be copied
to a buffer from our pool because it may be a hardware buffer
(hello dmabuf!), we can create a wl_buffer directly from it and first,
attach it on it so that we don't have to re-create a wl_buffer every
time the same GstBuffer arrives and second, force the whole mechanism
for keeping the buffer out of the pool until there is a wl_buffer::release
on that foreign GstBuffer.
2014-10-11 14:57:13 +02:00
George Kiagiadakis
0badc1f5fb waylandsink/wldisplay: verify that all the required interfaces have been found on the compositor
This allows waylandsink to fail gracefully before going to READY
in case one of the required interfaces does not exist. Not all
interfaces are necessary for all modes of operation, but it is
better imho to fail before going to READY if at least one feature
is not supported, than to fail and/or crash at some later point.

In the future we may want to relax this restriction and allow certain
interfaces not to be present under certain circumstances, for example
if there is an alternative similar interface available (for instance,
xdg_shell instead of wl_shell), but for now let's require them all.
Weston supports them all, which is enough for us now. Other compositors
should really implement them if they don't already. I don't like the
idea of supporting many different compositors with different sets of
interfaces implemented. wl_subcompositor, wl_shm and wl_scaler are
really essential for having a nice video sink. Enough said.
2014-06-17 13:51:30 +02:00
George Kiagiadakis
07f671fcaf waylandsink: create and maintain the subsurface inside the sink
This means that the given surface in set_window_handle can now be
the window's top-level surface on top of which waylandsink creates
its own subsurface for rendering the video.

This has many advantages:
* We can maintain aspect ratio by overlaying the subsurface in
  the center of the given area and fill the parent surface's area
  black in case we need to draw borders (instead of adding another
  subsurface inside the subsurface given from the application,
  so, less subsurfaces)
* We can more easily support toolkits without subsurfaces (see gtk)
* We can get properly use gst_video_overlay_set_render_rectangle
  as our api to set the video area size from the application and
  therefore remove gst_wayland_video_set_surface_size.
2014-06-17 13:51:27 +02:00
George Kiagiadakis
a543aef5ee waylandsink: Update wl_scaler to version 2 2014-06-17 13:51:26 +02:00
George Kiagiadakis
ec18fe8965 waylandsink/wldisplay: bind to the latest available wl_compositor version 2014-06-17 13:51:26 +02:00
George Kiagiadakis
086ac4ee81 waylandsink: Use wl_scaler/wl_viewport to scale the surface in the compositor/hardware 2014-06-17 13:51:25 +02:00
George Kiagiadakis
26ce7f2344 waylandsink: handle the list of supported formats properly
enum wl_shm_format is not a flags enum, as it may have been in the past,
so multiple formats cannot be stored in a bitfield. Use an array instead.
2014-06-17 13:51:23 +02:00
George Kiagiadakis
350d919719 waylandsink: apply the same debug category to all the subobjects 2014-06-17 13:51:22 +02:00
George Kiagiadakis
ac9503ed65 waylandsink: cleanup header includes 2014-06-17 13:51:22 +02:00
George Kiagiadakis
e600a323b7 waylandsink: process display events in a separate thread
This also moves the display-related code into a new GstWlDisplay class,
which takes care of the new thread
2014-06-17 13:51:20 +02:00