warped_motion: disable warped_motion mode if ref frame is scaled

To make it compatible with frame_superres

Change-Id: Id1560e1477a09cfd27a4b4f17468be9c76d09013
diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index fa4b970..002be73 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -7890,6 +7890,9 @@
 #if CONFIG_GLOBAL_MOTION
       0, xd->global_motion,
 #endif  // CONFIG_GLOBAL_MOTION
+#if CONFIG_WARPED_MOTION
+      xd,
+#endif
       mi);
 #endif  // CONFIG_NCOBMC_ADAPT_WEIGHT
   base_mbmi = *mbmi;
@@ -10908,12 +10911,18 @@
         *returnrate_nocoef -= av1_cost_bit(av1_get_intra_inter_prob(cm, xd),
                                            mbmi->ref_frame[0] != INTRA_FRAME);
 #if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+#if CONFIG_WARPED_MOTION
+        set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
+#endif
 #if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
         MODE_INFO *const mi = xd->mi[0];
         const MOTION_MODE motion_allowed = motion_mode_allowed(
 #if CONFIG_GLOBAL_MOTION
             0, xd->global_motion,
 #endif  // CONFIG_GLOBAL_MOTION
+#if CONFIG_WARPED_MOTION
+            xd,
+#endif
             mi);
         if (motion_allowed == WARPED_CAUSAL)
           *returnrate_nocoef -= cpi->motion_mode_cost[bsize][mbmi->motion_mode];
@@ -11446,7 +11455,11 @@
 #if CONFIG_WARPED_MOTION || CONFIG_MOTION_VAR
     // Correct the motion mode for ZEROMV
     const MOTION_MODE last_motion_mode_allowed =
-        motion_mode_allowed(0, xd->global_motion, xd->mi[0]);
+        motion_mode_allowed(0, xd->global_motion,
+#if CONFIG_WARPED_MOTION
+                            xd,
+#endif
+                            xd->mi[0]);
     if (mbmi->motion_mode > last_motion_mode_allowed)
       mbmi->motion_mode = last_motion_mode_allowed;
 #endif  // CONFIG_WARPED_MOTION || CONFIG_MOTION_VAR