backend/drm: add special case for cursor in add_plane
The code calling add_plane now makes sure not to add a cursor plane to a CRTC which already has one.
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@ -92,10 +92,7 @@ static bool add_plane(struct wlr_drm_backend *drm,
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struct wlr_drm_crtc *crtc, drmModePlane *drm_plane,
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uint32_t type, union wlr_drm_plane_props *props) {
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assert(!(type == DRM_PLANE_TYPE_PRIMARY && crtc->primary));
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if (type == DRM_PLANE_TYPE_CURSOR && crtc->cursor) {
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return true;
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}
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assert(!(type == DRM_PLANE_TYPE_CURSOR && crtc->cursor));
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struct wlr_drm_plane *p = calloc(1, sizeof(*p));
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if (!p) {
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