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kms/update: If reassigning a plane handle the fb changed flag

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If we reassign e.g. a cursor plane twice before it's updated, we need to
make sure the 'fb-unchanged' flag is correctly handled, so that if we
changed the fb first, then updated the assignment again only changing
the position, the new assignment should not be flagged with
fb-unchanged.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>
This commit is contained in:
Jonas Ådahl 2020-10-02 16:53:16 +02:00 committed by Marge Bot
parent 3bad37482d
commit b693e58c53
1 changed files with 23 additions and 4 deletions
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27
src/backends/native/meta-kms-update.c
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@ -141,9 +141,10 @@ meta_kms_mode_set_free (MetaKmsModeSet *mode_set)
g_free (mode_set);
}
void
meta_kms_update_drop_plane_assignment (MetaKmsUpdate *update,
MetaKmsPlane *plane)
static gboolean
drop_plane_assignment (MetaKmsUpdate *update,
MetaKmsPlane *plane,
MetaKmsAssignPlaneFlag *out_flags)
{
GList *l;
@ -155,10 +156,21 @@ meta_kms_update_drop_plane_assignment (MetaKmsUpdate *update,
{
update->plane_assignments =
g_list_delete_link (update->plane_assignments, l);
if (out_flags)
*out_flags = plane_assignment->flags;
meta_kms_plane_assignment_free (plane_assignment);
return;
return TRUE;
}
}
return FALSE;
}
void
meta_kms_update_drop_plane_assignment (MetaKmsUpdate *update,
MetaKmsPlane *plane)
{
drop_plane_assignment (update, plane, NULL);
}
MetaKmsPlaneAssignment *
@ -171,6 +183,7 @@ meta_kms_update_assign_plane (MetaKmsUpdate *update,
MetaKmsAssignPlaneFlag flags)
{
MetaKmsPlaneAssignment *plane_assignment;
MetaKmsAssignPlaneFlag old_flags;
g_assert (!meta_kms_update_is_locked (update));
g_assert (meta_kms_crtc_get_device (crtc) == update->device);
@ -179,6 +192,12 @@ meta_kms_update_assign_plane (MetaKmsUpdate *update,
META_KMS_PLANE_TYPE_PRIMARY ||
!(flags & META_KMS_ASSIGN_PLANE_FLAG_ALLOW_FAIL));
if (drop_plane_assignment (update, plane, &old_flags))
{
if (!(old_flags & META_KMS_ASSIGN_PLANE_FLAG_FB_UNCHANGED))
flags &= ~META_KMS_ASSIGN_PLANE_FLAG_FB_UNCHANGED;
}
plane_assignment = g_new0 (MetaKmsPlaneAssignment, 1);
*plane_assignment = (MetaKmsPlaneAssignment) {
.update = update,