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metal: handle cursor plane allocation failures gracefully

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This commit is contained in:
Julian Orth 2025-09-13 12:49:34 +02:00
parent c691a7b429
commit e5de85299b
1 changed files with 21 additions and 7 deletions
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28
src/backends/metal/transaction.rs
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@ -418,11 +418,11 @@ impl MetalDeviceTransaction {
crtc.new.mode_blob = Some(Rc::new(blob));
mode.clone()
};
for plane in [crtc_planes.primary, crtc_planes.cursor] {
if plane.is_none() {
for plane_id in [&mut crtc_planes.primary, &mut crtc_planes.cursor] {
if plane_id.is_none() {
continue;
}
let plane = slf.planes.get_mut(&plane).unwrap();
let plane = slf.planes.get_mut(plane_id).unwrap();
plane.new.assigned_crtc = crtc.obj.id;
plane.changed.extend(crtc.changed.iter().cloned());
let (x, y, width, height, format, old_buffers);
@ -484,7 +484,8 @@ impl MetalDeviceTransaction {
None => {
let modifiers = &plane.obj.formats.get(&format.drm).unwrap().modifiers;
connector.changed.set(true);
let buffers = slf
let is_cursor = plane.obj.ty == PlaneType::Cursor;
let res = slf
.dev
.dev
.backend
@ -495,15 +496,28 @@ impl MetalDeviceTransaction {
width,
height,
render_ctx,
plane.obj.ty == PlaneType::Cursor,
is_cursor,
)
.map_err(|e| {
BackendConnectorTransactionError::AllocateScanoutBuffers(
connector.obj.kernel_id(),
Box::new(e),
)
})?;
let buffers = Rc::new(buffers);
});
if let Err(e) = &res
&& is_cursor
{
log::error!(
"Could not allocate buffers for cursor plane of {}: {}",
connector.obj.kernel_id(),
ErrorFmt(e),
);
plane.new = DrmPlaneState::default();
unused_planes.insert(*plane_id, ());
*plane_id = DrmPlane::NONE;
continue;
}
let buffers = Rc::new(res?);
plane.new.buffers = Some(buffers.clone());
new_buffers = Some(buffers.clone());
buffers