libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_segmentation.c

Index: source/libvpx/vp9/encoder/vp9_segmentation.c
===================================================================
--- source/libvpx/vp9/encoder/vp9_segmentation.c	(revision 223100)
+++ source/libvpx/vp9/encoder/vp9_segmentation.c	(working copy)
@@ -117,7 +117,7 @@
   return cost;
 }
 
-static void count_segs(VP9_COMP *cpi, MODE_INFO *mi,
+static void count_segs(VP9_COMP *cpi, MODE_INFO **mi_8x8,
                        int *no_pred_segcounts,
                        int (*temporal_predictor_count)[2],
                        int *t_unpred_seg_counts,
@@ -129,8 +129,8 @@
   if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
     return;
 
-  segment_id = mi->mbmi.segment_id;
-  xd->mode_info_context = mi;
+  segment_id = mi_8x8[0]->mbmi.segment_id;
+
   set_mi_row_col(cm, xd, mi_row, bh, mi_col, bw);
 
   // Count the number of hits on each segment with no prediction
@@ -138,7 +138,7 @@
 
   // Temporal prediction not allowed on key frames
   if (cm->frame_type != KEY_FRAME) {
-    const BLOCK_SIZE bsize = mi->mbmi.sb_type;
+    const BLOCK_SIZE bsize = mi_8x8[0]->mbmi.sb_type;
     // Test to see if the segment id matches the predicted value.
     const int pred_segment_id = vp9_get_segment_id(cm, cm->last_frame_seg_map,
                                                    bsize, mi_row, mi_col);
@@ -147,7 +147,7 @@
 
     // Store the prediction status for this mb and update counts
     // as appropriate
-    vp9_set_pred_flag_seg_id(cm, bsize, mi_row, mi_col, pred_flag);
+    vp9_set_pred_flag_seg_id(xd, pred_flag);
     temporal_predictor_count[pred_context][pred_flag]++;
 
     if (!pred_flag)
@@ -156,7 +156,7 @@
   }
 }
 
-static void count_segs_sb(VP9_COMP *cpi, MODE_INFO *mi,
+static void count_segs_sb(VP9_COMP *cpi, MODE_INFO **mi_8x8,
                           int *no_pred_segcounts,
                           int (*temporal_predictor_count)[2],
                           int *t_unpred_seg_counts,
@@ -170,21 +170,22 @@
   if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
     return;
 
-  bw = num_8x8_blocks_wide_lookup[mi->mbmi.sb_type];
-  bh = num_8x8_blocks_high_lookup[mi->mbmi.sb_type];
+  bw = num_8x8_blocks_wide_lookup[mi_8x8[0]->mbmi.sb_type];
+  bh = num_8x8_blocks_high_lookup[mi_8x8[0]->mbmi.sb_type];
 
   if (bw == bs && bh == bs) {
-    count_segs(cpi, mi, no_pred_segcounts, temporal_predictor_count,
+    count_segs(cpi, mi_8x8, no_pred_segcounts, temporal_predictor_count,
                t_unpred_seg_counts, bs, bs, mi_row, mi_col);
   } else if (bw == bs && bh < bs) {
-    count_segs(cpi, mi, no_pred_segcounts, temporal_predictor_count,
+    count_segs(cpi, mi_8x8, no_pred_segcounts, temporal_predictor_count,
                t_unpred_seg_counts, bs, hbs, mi_row, mi_col);
-    count_segs(cpi, mi + hbs * mis, no_pred_segcounts, temporal_predictor_count,
-               t_unpred_seg_counts, bs, hbs, mi_row + hbs, mi_col);
+    count_segs(cpi, mi_8x8 + hbs * mis, no_pred_segcounts,
+               temporal_predictor_count, t_unpred_seg_counts, bs, hbs,
+               mi_row + hbs, mi_col);
   } else if (bw < bs && bh == bs) {
-    count_segs(cpi, mi, no_pred_segcounts, temporal_predictor_count,
+    count_segs(cpi, mi_8x8, no_pred_segcounts, temporal_predictor_count,
                t_unpred_seg_counts, hbs, bs, mi_row, mi_col);
-    count_segs(cpi, mi + hbs, no_pred_segcounts, temporal_predictor_count,
+    count_segs(cpi, mi_8x8 + hbs, no_pred_segcounts, temporal_predictor_count,
                t_unpred_seg_counts, hbs, bs, mi_row, mi_col + hbs);
   } else {
     const BLOCK_SIZE subsize = subsize_lookup[PARTITION_SPLIT][bsize];
@@ -196,7 +197,7 @@
       const int mi_dc = hbs * (n & 1);
       const int mi_dr = hbs * (n >> 1);
 
-      count_segs_sb(cpi, &mi[mi_dr * mis + mi_dc],
+      count_segs_sb(cpi, &mi_8x8[mi_dr * mis + mi_dc],
                     no_pred_segcounts, temporal_predictor_count,
                     t_unpred_seg_counts,
                     mi_row + mi_dr, mi_col + mi_dc, subsize);
@@ -222,7 +223,7 @@
   vp9_prob t_nopred_prob[PREDICTION_PROBS];
 
   const int mis = cm->mode_info_stride;
-  MODE_INFO *mi_ptr, *mi;
+  MODE_INFO **mi_ptr, **mi;
 
   // Set default state for the segment tree probabilities and the
   // temporal coding probabilities
@@ -233,7 +234,7 @@
   // predicts this one
   for (tile_col = 0; tile_col < 1 << cm->log2_tile_cols; tile_col++) {
     vp9_get_tile_col_offsets(cm, tile_col);
-    mi_ptr = cm->mi + cm->cur_tile_mi_col_start;
+    mi_ptr = cm->mi_grid_visible + cm->cur_tile_mi_col_start;
     for (mi_row = 0; mi_row < cm->mi_rows;
          mi_row += 8, mi_ptr += 8 * mis) {
       mi = mi_ptr;