modesetting: Omit DRM_FORMAT_MOD_INVALID.

Previously it was possible for the invalid modifier to be placed in the IN_FORMATS or IN_FORMATS_ASYNC arrays, this is of course not wanted as this can cause problems with devices that lack support for explicit modifiers.

Author: notbabaisyou

hw/xfree86/drivers/video/modesetting/drmmode_display.c

@@ -2452,9 +2452,13 @@ populate_format_modifiers(xf86CrtcPtr crtc, const drmModePlane *kplane,
 
             if ((i < mod->offset) || (i > mod->offset + 63))
                 continue;
+
             if (!(mod->formats & (1 << (i - mod->offset))))
                 continue;
 
+            if (mod->modifier == DRM_FORMAT_MOD_INVALID)
+                continue;
+
             num_modifiers++;
             tmp = realloc(modifiers, num_modifiers * sizeof(modifiers[0]));
             if (!tmp) {