Modify is_cur_buf_hbd() and get_buf_by_bd() functions

This CL introduces CONFIG_AV1_HIGHBITDEPTH macro in
is_cur_buf_hbd() and get_buf_by_bd() functions and also
cleans-up the code appropriately.

Change-Id: I7d2403fbd2875064b31e7fe0ac936789b5ce25c4
diff --git a/av1/common/blockd.h b/av1/common/blockd.h
index b90d348..f3f8f08 100644
--- a/av1/common/blockd.h
+++ b/av1/common/blockd.h
@@ -928,13 +928,23 @@
 /*!\cond */
 
 static INLINE int is_cur_buf_hbd(const MACROBLOCKD *xd) {
+#if CONFIG_AV1_HIGHBITDEPTH
   return xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH ? 1 : 0;
+#else
+  (void)xd;
+  return 0;
+#endif
 }
 
 static INLINE uint8_t *get_buf_by_bd(const MACROBLOCKD *xd, uint8_t *buf16) {
+#if CONFIG_AV1_HIGHBITDEPTH
   return (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH)
              ? CONVERT_TO_BYTEPTR(buf16)
              : buf16;
+#else
+  (void)xd;
+  return buf16;
+#endif
 }
 
 typedef struct BitDepthInfo {
diff --git a/av1/common/reconinter.c b/av1/common/reconinter.c
index 66c3e28ae..f4f8e82 100644
--- a/av1/common/reconinter.c
+++ b/av1/common/reconinter.c
@@ -1189,7 +1189,6 @@
 
 void av1_setup_obmc_dst_bufs(MACROBLOCKD *xd, uint8_t **dst_buf1,
                              uint8_t **dst_buf2) {
-#if CONFIG_AV1_HIGHBITDEPTH
   if (is_cur_buf_hbd(xd)) {
     int len = sizeof(uint16_t);
     dst_buf1[0] = CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[0]);
@@ -1203,16 +1202,13 @@
     dst_buf2[2] =
         CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[1] + MAX_SB_SQUARE * 2 * len);
   } else {
-#endif  // CONFIG_AV1_HIGHBITDEPTH
     dst_buf1[0] = xd->tmp_obmc_bufs[0];
     dst_buf1[1] = xd->tmp_obmc_bufs[0] + MAX_SB_SQUARE;
     dst_buf1[2] = xd->tmp_obmc_bufs[0] + MAX_SB_SQUARE * 2;
     dst_buf2[0] = xd->tmp_obmc_bufs[1];
     dst_buf2[1] = xd->tmp_obmc_bufs[1] + MAX_SB_SQUARE;
     dst_buf2[2] = xd->tmp_obmc_bufs[1] + MAX_SB_SQUARE * 2;
-#if CONFIG_AV1_HIGHBITDEPTH
   }
-#endif  // CONFIG_AV1_HIGHBITDEPTH
 }
 
 void av1_setup_build_prediction_by_above_pred(
diff --git a/av1/encoder/tpl_model.c b/av1/encoder/tpl_model.c
index 3658c34..a8e0ec1 100644
--- a/av1/encoder/tpl_model.c
+++ b/av1/encoder/tpl_model.c
@@ -479,7 +479,6 @@
   // Pre-load the bottom left line.
   if (xd->left_available &&
       mi_row + tx_size_high_unit[tx_size] < xd->tile.mi_row_end) {
-#if CONFIG_AV1_HIGHBITDEPTH
     if (is_cur_buf_hbd(xd)) {
       uint16_t *dst = CONVERT_TO_SHORTPTR(dst_buffer);
       for (int i = 0; i < bw; ++i)
@@ -490,11 +489,6 @@
         dst_buffer[(bw + i) * dst_buffer_stride - 1] =
             dst_buffer[(bw - 1) * dst_buffer_stride - 1];
     }
-#else
-    for (int i = 0; i < bw; ++i)
-      dst_buffer[(bw + i) * dst_buffer_stride - 1] =
-          dst_buffer[(bw - 1) * dst_buffer_stride - 1];
-#endif
   }
 
   // if cpi->sf.tpl_sf.prune_intra_modes is on, then search only DC_PRED,