Make cdef boundary condition check support 128x128 block

This resolves the performance issue in ext-partition. The
compression performance is up from 0.9% loss to 0.4% gains in
midres.

Change-Id: I0dfeee828dbc114842c72361683271487108c593

av1/common/cdef.c

@@ -26,13 +26,9 @@ int sb_all_skip(const AV1_COMMON *const cm, int mi_row, int mi_col) {
   int skip = 1;
   maxc = cm->mi_cols - mi_col;
   maxr = cm->mi_rows - mi_row;
-#if CONFIG_EXT_PARTITION
-  if (maxr > cm->mib_size_log2) maxr = cm->mib_size_log2;
-  if (maxc > cm->mib_size_log2) maxc = cm->mib_size_log2;
-#else
-  if (maxr > MAX_MIB_SIZE) maxr = MAX_MIB_SIZE;
-  if (maxc > MAX_MIB_SIZE) maxc = MAX_MIB_SIZE;
-#endif
+
+  maxr = AOMMIN(maxr, cm->mib_size);
+  maxc = AOMMIN(maxc, cm->mib_size);
 
   for (r = 0; r < maxr; r++) {
     for (c = 0; c < maxc; c++) {
@@ -63,13 +59,9 @@ int sb_compute_dering_list(const AV1_COMMON *const cm, int mi_row, int mi_col,
   grid = cm->mi_grid_visible;
   maxc = cm->mi_cols - mi_col;
   maxr = cm->mi_rows - mi_row;
-#if CONFIG_EXT_PARTITION
-  if (maxr > cm->mib_size_log2) maxr = cm->mib_size_log2;
-  if (maxc > cm->mib_size_log2) maxc = cm->mib_size_log2;
-#else
-  if (maxr > MAX_MIB_SIZE) maxr = MAX_MIB_SIZE;
-  if (maxc > MAX_MIB_SIZE) maxc = MAX_MIB_SIZE;
-#endif
+
+  maxr = AOMMIN(maxr, cm->mib_size);
+  maxc = AOMMIN(maxc, cm->mib_size);
 
   const int r_step = mi_size_high[BLOCK_8X8];
   const int c_step = mi_size_wide[BLOCK_8X8];