+ bool supported_modifier = false;
+ if (modifier != DRM_FORMAT_MOD_INVALID) {
+ supported_modifier = true;
+ } else {
+ int visual_idx = dri2_wl_visual_idx_from_fourcc(fourcc);
+ assert(visual_idx != -1);
+
+ uint64_t *mod;
+ u_vector_foreach(mod, &dri2_dpy->wl_modifiers[visual_idx]) {
+ if (*mod == DRM_FORMAT_MOD_INVALID) {
+ supported_modifier = true;
+ break;
+ }
+ }
+ }
+
+ if (dri2_dpy->wl_dmabuf && supported_modifier) {