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backend/drm: force LINEAR for cursor plane formats 

If the kernel driver doesn't support modifiers, it still expects cursor
FBs to have a LINEAR layout. See [1] for expectations for framebuffers
attached to the cursor plane.

[1]: https://patchwork.freedesktop.org/patch/408512/
This commit is contained in:
Simon Ser 2020-12-04 17:07:56 +01:00 committed by Ilia Bozhinov
parent caeed70f28
commit 7ea0e9f277
1 changed files with 7 additions and 0 deletions
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7
backend/drm/drm.c
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@ -136,6 +136,13 @@ static bool add_plane(struct wlr_drm_backend *drm,
}
drmModeFreePropertyBlob(blob);
} else if (type == DRM_PLANE_TYPE_CURSOR) {
// Force a LINEAR layout for the cursor if the driver doesn't support
// modifiers
for (size_t i = 0; i < p->formats.len; ++i) {
wlr_drm_format_set_add(&p->formats, p->formats.formats[i]->format,
DRM_FORMAT_MOD_LINEAR);
}
}
switch (type) {