To Wayland clients, it doesn't matter how we configure our onscreen
buffers, since they don't necessarily have the same bandwidth issues
related to mode setting, whichis the primary reason why we disable
modifiers using the udev rule, so simply check whether importing with
modifiers will work at all and advertise modifiers if so is the case.
This might help avoid issues using legacy non-modifiers path in drivers.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2546>
When building the list of formats to be sent as part of the scanout
tranche, avoid requiring modifier support by the DRM driver for
formats relying on implicit modifiers (DRM_FORMAT_MOD_INVALID).
Specifically, the previous check required the DRM driver to have
advertised some modifier support for the given format in its
IN_FORMATS KMS plane property, regardless of modifier it was. If it
hadn't, the format was left out of the list of formats to be sent
in the scanout tranche.
When no formats remained to be sent in the scanout tranche, the
tranche simply wasn't sent.
This resulted in the scanout tranche never being sent for GPUs where
modifiers aren't supported. In those cases, no formats are advertised
using the IN_FORMATS property, and thus the list of formats to be sent
in the scanout tranche remained empty.
Since Mesa doesn't use scanout-compatible buffers for native Wayland
clients unless specifically requested to do so using the "scanout"
tranche flag, it effectively means that direct scanout of native
Wayland clients wasn't supported for GPUs without modifiers support.
Sending a tranche with formats paired with the implicit modifier
(DRM_FORMAT_MOD_INVALID) is both allowed by the protocol and is
already done by default for GPUs with modifiers support, unless the
experimental support for explicit modifiers is enabled in Mutter.
So instead of requiring modifiers to be supported for each format
being evaluated for the scanout tranche, when processing formats
which rely on implicit modifiers, only check if the format in
question is supported by the DRM driver for scanout on the primary
plane.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2510>
Fixes leak:
==14889== 2,168 (16 direct, 2,152 indirect) bytes in 1 blocks are definitely lost in loss record 15,308 of 15,584
==14889== at 0x48445EF: calloc (vg_replace_malloc.c:1328)
==14889== by 0x4BAC1D0: g_malloc0 (gmem.c:155)
==14889== by 0x4AAFF60: meta_wayland_dma_buf_feedback_new (meta-wayland-dma-buf.c:298)
==14889== by 0x4AAFFE0: meta_wayland_dma_buf_feedback_copy (meta-wayland-dma-buf.c:317)
==14889== by 0x4AB16B6: ensure_surface_feedback (meta-wayland-dma-buf.c:1121)
==14889== by 0x4AB1848: dma_buf_handle_get_surface_feedback (meta-wayland-dma-buf.c:1169)
==14889== by 0x66F77E9: ??? (in /usr/lib/x86_64-linux-gnu/libffi.so.8.1.0)
==14889== by 0x66F6922: ??? (in /usr/lib/x86_64-linux-gnu/libffi.so.8.1.0)
==14889== by 0x5318750: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-server.so.0.20.0)
==14889== by 0x5313B99: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-server.so.0.20.0)
==14889== by 0x5316649: wl_event_loop_dispatch (in /usr/lib/x86_64-linux-gnu/libwayland-server.so.0.20.0)
==14889== by 0x4AA7C19: wayland_event_source_dispatch (meta-wayland.c:110)
Fixes: 64e6bedb6b ("wayland/dma-buf: Add support for scanout surface feedback")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2469>
It's not allowed to call eglQueryWaylandBuffer() if the call to
eglBindWaylandDisplay() failed, and will result in an assert being hit
in mesa if called.
Avoid that by keeping track whether we succeeded to bind, and only
attempt to realize a legacy EGL wl_buffer if binding succeeded.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2415>
In some configurations (e.g. NVIDIA driver 470) Xwayland may use DMA
buffer for passing buffers around. When this is done, we might attempt
to scanout these buffers when they are fullscreen, and to do so we
import them using gbm.
However, for the mentioned configuration, there is no gbm device
available for importing. This was not handled, and resulted in a crash;
avoid this crash by checking whether we have a gbm device and fail
gracefully if we don't.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2098
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2318>
When running in KVM, the EGL driver supports querying the render node
path, but it returns NULL. Handle that better by falling back to
querying the device main device file, instead of falling back on v3 of
the protocol and logging a warning.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2151>
If the EGL header is not new enough, it will not contain that relatively
new macro definition, so to avoid breaking compilation, define it
ourselves for now. Should be possible to remove after some time.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2214>
This significantly increases the chance of a fullscreen surface buffer
being scanned out instead of being painted via composition. This is
assuming the client supports the DMA buffer feedback Wayland protocol.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2146>
Whenever a surface is promoted as a scanout candidate by
MetaCompositorNative, it'll get a CRTC set as the candidate CRTC.
When a client asks for DMA buffer surface feedback, use this property to
determine whether we should send a scanout feedback tranche.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1959>
The DRM buffers aren't really tied to mode setting, so they shouldn't
need to have an associated mode setting device. Now that we have a
device file level object that can fill this role, port over
MetaDrmBuffer and friends away from MetaKmsDevice to MetaDeviceFile.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1828>
It seems to be the preferred format of the Mesa V3D driver on
Raspberry Pi 4. If the compositor doesn't advertise it then Mesa will
fallback from `zwp_linux_dmabuf_v1` to `wl_drm`, incorrectly. Meaning
it will keep using a buffer with modifiers on an interface that does
not have modifiers.
Add support for `DRM_FORMAT_ABGR2101010`. It works, and prevents Mesa
from taking its broken fallback path.
Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1520
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1798>
This commit consolidates DRM buffer management to the MetaDrmBuffer
types, where the base type handles the common functionality (such as
managing the framebuffer id using drmModeAdd*/RMFb()), and the sub types
their corresponding type specific behavior.
This means that drmModeAdd*/RmFB() handling is moved from meta-gpu-kms.c
to meta-drm-buffer.c; dumb buffer allocation/management from
meta-renderer-native.c.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>
Just as wl_shm, hook up the Wayland DMA-BUF protocol to the 64 bit half
point pixel formats too. This makes it possible for Wayland EGL clients
to use 64 bit pixel EGL configurations.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/804
A DMA buffer might not be able to scanout, and in that case the import
with GBM_BO_USE_SCANOUT will fail. Handle that by failing to scanout,
effectively falling back to compositing.
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1261
This will check whether the current backing buffer is compatible with
the primary plane of the passed CoglOnscreen. Since this will extend the
time before a buffer is released, the MetaWaylandBufferRef is swapped
and orphaned if a new buffer is committed before the previous one was
released. It'll eventually be released, usually by the next page flip
callback.
Currently implemented for EGLImage and DMA-BUF buffer types.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/798
Advertising support for modifiers means we will most likely not not be
able to scan out client buffers directly, meaning it just as likely that
we won't be able to scan out even fullscreen windows without atomic KMS.
When we have atomic support, we should advertise support for modifiers
if atomic is used to drive the CRTCs, as we by then can check whether we
can scan out directly, place in an overlay plane, etc.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/798
As with most other state that ends up being pushed to the actor and the
associated shaped texture, also push the texture and the corresponding
metadata from the actor surface. This fixes an issue when a toplevel
surface was reset, where before the subsurface content was not properly
re-initialized, as content state synchronization only happened on
commit, not when asked to synchronize.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/961
It's not always clear how the dma-buf functions work (e.g. where memory
is allocated) without actually going in-depth in the code. This just
adds a few commments to more quickly gain understanding.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/871
Some drivers expose EGL_EXT_image_dma_buf_import_modifiers so you can
query supported formats, but don't support any modifiers. Handle this by
treating it like DRM_FORMAT_MOD_INVALID.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/782
