commit 97d1f1aaaeead02e59b4124b29de65fb49cf05a7
author Jingning Han <jingning@google.com> Tue Jul 07 13:52:56 2015 -0700
committer Jingning Han <jingning@google.com> Tue Jul 07 15:03:21 2015 -0700
tree c6cccbe386a76b6e9ffbae2fcfab506422bf9a5e
parent a652048efd22c8fff6ffd659ca7cd48004b8a18c

Rework scan order fetch logic for decoder

Save redundant call for getting prediction mode to obtain scan
order for detokenization.

Change-Id: I0683ef119f1579d1261ed5d59052a1745b68ef6f

vp9/decoder/vp9_decodeframe.c

diff --git a/vp9/decoder/vp9_decodeframe.c b/vp9/decoder/vp9_decodeframe.c
index 7631e4d..6c64540 100644
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -315,7 +315,10 @@
                           x, y, plane);
 
   if (!mi->mbmi.skip) {
-    const int eob = vp9_decode_block_tokens(xd, plane, block,
+    const scan_order *sc = (plane || xd->lossless) ?
+        &vp9_default_scan_orders[tx_size] :
+        &vp9_scan_orders[tx_size][intra_mode_to_tx_type_lookup[mode]];
+    const int eob = vp9_decode_block_tokens(xd, plane, sc,
                                             plane_bsize, x, y, tx_size,
                                             args->r, args->seg_id);
     inverse_transform_block(xd, plane, block, tx_size, dst, pd->dst.stride,
@@ -337,8 +340,9 @@
   MACROBLOCKD *const xd = args->xd;
   struct macroblockd_plane *const pd = &xd->plane[plane];
   int x, y, eob;
+  const scan_order *sc = &vp9_default_scan_orders[tx_size];
   txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &x, &y);
-  eob = vp9_decode_block_tokens(xd, plane, block, plane_bsize,
+  eob = vp9_decode_block_tokens(xd, plane, sc, plane_bsize,
                                 x, y, tx_size, args->r, args->seg_id);
   inverse_transform_block(xd, plane, block, tx_size,
                           &pd->dst.buf[4 * y * pd->dst.stride + 4 * x],