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 254565)
+++ source/libvpx/vp9/encoder/vp9_segmentation.c	(working copy)
@@ -10,29 +10,25 @@
 
 
 #include <limits.h>
+
 #include "vpx_mem/vpx_mem.h"
-#include "vp9/encoder/vp9_segmentation.h"
+
 #include "vp9/common/vp9_pred_common.h"
 #include "vp9/common/vp9_tile_common.h"
 
-void vp9_enable_segmentation(VP9_PTR ptr) {
-  VP9_COMP *cpi = (VP9_COMP *)ptr;
-  struct segmentation *const seg =  &cpi->common.seg;
+#include "vp9/encoder/vp9_segmentation.h"
 
+void vp9_enable_segmentation(struct segmentation *seg) {
   seg->enabled = 1;
   seg->update_map = 1;
   seg->update_data = 1;
 }
 
-void vp9_disable_segmentation(VP9_PTR ptr) {
-  VP9_COMP *cpi = (VP9_COMP *)ptr;
-  struct segmentation *const seg =  &cpi->common.seg;
+void vp9_disable_segmentation(struct segmentation *seg) {
   seg->enabled = 0;
 }
 
-void vp9_set_segmentation_map(VP9_PTR ptr,
-                              unsigned char *segmentation_map) {
-  VP9_COMP *cpi = (VP9_COMP *)ptr;
+void vp9_set_segmentation_map(VP9_COMP *cpi, unsigned char *segmentation_map) {
   struct segmentation *const seg = &cpi->common.seg;
 
   // Copy in the new segmentation map
@@ -44,12 +40,9 @@
   seg->update_data = 1;
 }
 
-void vp9_set_segment_data(VP9_PTR ptr,
+void vp9_set_segment_data(struct segmentation *seg,
                           signed char *feature_data,
                           unsigned char abs_delta) {
-  VP9_COMP *cpi = (VP9_COMP *)ptr;
-  struct segmentation *const seg = &cpi->common.seg;
-
   seg->abs_delta = abs_delta;
 
   vpx_memcpy(seg->feature_data, feature_data, sizeof(seg->feature_data));