The proprietary nvidia driver garbles GPU memory on suspend.
In order to workaround that limitation, this commit copies all
textures to host memory on suspend and restores them on resume.
One complication comes from external textures (such as those
given to us by Xwayland for X clients). We can't just restore
those textures, since they aren't writable.
This commit addresses that complication by keeping a local texture
around for those external textures, and using it instead for parts
of the window that haven't been redrawn since resume.
As mentioned in a previous commit, the proprietary NVIDIA
driver garbles memory on suspend. That behavior, means that
the cursor gets corrupted on suspend.
This commit forces the cursor to redraw itself when the
logind session becomes active (on VT switch and resume).
As mentioned in a previous commit, the proprietary NVIDIA
driver garbles memory on suspend. That behavior, means that
clutter's glyph cache (which is stored in GPU memory) gets
corrupted on suspend.
This commit ensures the glyph cache is blown away when
the logind session becomes active (on VT switch and resume).
The proprietary NVIDIA driver garbles memory on suspend. In order
to work around that limitation, mutter needs to refresh all its
textures on resuem.
This commit lays the way toward doing that by emitting the
"gl-video-memory-purged" signal when the compositor becomes active
by logind (which happens on VT switch and on resume).
On nvidia, the textures backing Xwayland client window contents get
corrupted on suspend. Xwayland currently doesn't handle this situation
itself.
For now, in order to work around this issue, send an empty output
change event to Xwayland. This will cause it to force Expose events
to get sent to all clients and get them to redraw.
This commit adds "suspending" and "resuming" signals
to MetaBackend.
It's preliminary work needed for tracking when to purge
and recreate all textures (needed by nvidia).
Right now we listen to prepare-for-sleep using
raw gdbus calls.
This commit switches it over to use a generated
proxy, which will become useful in a future commit,
for adding suspending inhibitors.
The proprietary nvidia driver garbles texture memory on suspend.
Before we can address that, we need to be able to detect it.
This commit adds a new UNSTABLE_TEXTURES feature that gets set if
the proprietary nvidia driver is in use.
It scaled the logical monitor rect with scale to get the stream
dimensions, but that is only valid when having
'scale-monitor-framebuffers' enabled. Even when it was, it didn't work
properly, as clutter_stage_capture_into() doesn't work properly with
scaled monitor framebuffers yet.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/415
Previously, the clipping rectangle passed to
`meta_surface_actor_get_image()` was updated with the actual texture
size, but recent changes in `meta_shaped_texture_get_image()` now keep
the caller's clipping rectangle unchanged.
The implementation of `meta_window_actor_capture_into()` was relying on
the old behavior of updating the passed clipping rectangle, but now that
it's kept unchanged, the actual clipping rectangle used to copy the data
is wrong, which causes either a distorded image or worse, a crash of
mutter.
Use the resulting cairo image size to copy the data instead of the
clipping rectangle to avoid the issue and get the expected size.
Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/442
The 'cursor-mode', which currently is limited to RecordMonitor(), allows
the user to either do screen casts where the cursor is hidden, embedded
in the framebuffer, or sent as PipeWire stream metadata.
The latter allows the user to get cursor updates sent, including the
cursor sprite, without requiring a stage paint each frame. Currently
this is done by using the cursor sprite texture, and either reading
directly from, or drawing to an offscreen framebuffer which is read from
instead, in case the texture is scaled.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/357
There may be reasons to temporarly inhibit the HW cursor under certain
circumstances. Allow adding such inhibitations by adding API to the
cursor renderer to allow API users to add generic inhibitors with
whatever logic is deemed necessary.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/357
To get a consistent behaviour no matter whether HW cursors are in use or
not, make sure to copy the framebuffer content before the stage overlays
(cursor sprite textures) are painted.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/357
This will be used by the screen casting code to check whether it should
wait for a frame before reading cursor state, or send only the cursor
update, if no redraw is queued.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/357
This means eglSwapBuffers() wont dead lock if there is an old buffer pending
page flip. This could happen after e.g. mode changes or for other reasons.
EGLStream textures are imported as GL_TEXTURE_EXTERNAL_OES and reading
pixels directly from them is not supported. To make it possible to get
pixels, create an offscreen framebuffer and paint the actor to it, then
read pixels from the framebuffer instead of the texture directly.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/362
While for normal textures, GL_TEXTURE_2D should be used, when it's an external
texture, binding it using GL_TEXTURE_2D results in an error.
Reading the specification for GL_TEXTURE_EXTERNAL_OES it is unclear whether
getting pixel data from a texture is possible, and tests show it doesn't result
in any data, but in case it would eventually start working, at least bind the
correct target for now.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/362
Don't just set the internal format to the dummy format "any", as that causes
code intended to be unreachable code to be reached. It's not possible to
actually know the internal format of an external texture, however, so it might
not actually correspond to the real format.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/362
Implements the `MetaScreenCastWindow` interface for screen-cast
`RecordWindow` mode.
`meta_window_actor_capture_into()` implementation is still pretty crude
and doesn't take into account subsurfaces and O-R windows so menus,
popups and other tooltips won't show in the capture.
This is left as a future improvement for now.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/306
(cherry picked from commit 931934511c)
Typically, to stream the content of a window, we need a way to copy the
content of its window-actor into a buffer, transform relative input
coordinates to relative position within the window-actor and a mean to
get the window bounds within the buffer.
For this purpose, add a new GType interface `MetaScreenCastWindow` with
the methods needed for screen-cast window mode:
* meta_screen_cast_window_get_buffer_bounds()
* meta_screen_cast_window_get_frame_bounds()
* meta_screen_cast_window_transform_relative_position()
* meta_screen_cast_window_capture_into()
This interface is meant to be implemented by `MetaWindowActor` which has
access to all the necessary bits to implement them.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/306
(cherry picked from commit 20c9ca25c0)
To be able to cast windows, which by definition can change in size
dynamically, we need a way to specify the video crop meta to adjust to
the window size whenever it changes.
Add VideoCrop support with a new optional hook `get_videocrop()` in the
`ScreenCastStreamSrcClass` which, if defined, can let the child specify
a rectangle for the video cropping area.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/306
(cherry picked from commit f64eba57ce)
Virtual keyboard and pointer are freed on session close, but the
virtual touchscreen isn't.
Avoid a leak by freeing the virtual touchscreen along with the rest of
virtual devices.
If a device (virtual or real) is removed while there are remaining
events queued for that device, the event loop may try to access the
event freed memory.
To avoid the issue, add a reference to the device when the event is
created or copied, and remove the reference once the device is freed.
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/393
If a KMS device has the DRM_CAP_DUMB_PREFER_SHADOW and a software based
GL driver is used, always use a shadow fb. This will speed up read backs
in the llvmpipe OpenGL implementation, making blend operations faster.
Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/106
When using the EGLStream backend, the MetaRendererNative passed a
GClosure to KMS when using EGLStreams, but KMS flip callback event
handler in meta-gpu-kms.c expected a closure wrapped in a closure
container, meaning it'd instead crash when using EGLStreams. Make the
flip handler get what it expects also when using EGLStreams by wrapping
the flip closure in the container before handing it over to EGL.
https://bugzilla.gnome.org/show_bug.cgi?id=790316
(cherry picked from commit 8ee14a7cb7)
One of the current limitations of EGLStreams is that there's no way to
resize a surface consumer without re-creating the entire stream.
Therefore, while resizing, clients will send wl_surface::attach requests
so the compositor can re-create its endpoint of the stream, but no
buffer will be available actually. If we proceed with the rest of the
attach operation we'll be presenting an empty buffer.
In order to fix this, a separate wl_eglstream_controller protocol has
been introduced that clients can use to request a stream re-creation
without overloading wl_surface::attach for that purpose.
This change adds the required logic to create the corresponding
wl_eglstream_controller global interface that clients can bind to.
Whenever a client requests a stream to be created, we just need to
create and realize the new EGLStream buffer. The same buffer resource
will be given at a later time to wl_surface::attach, whenever new
content is made available by the application, so we can proceed to
acquire the stream buffer and update the surface state.
https://bugzilla.gnome.org/show_bug.cgi?id=782575
(cherry picked from commit 435b3c4bdb)
