libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_alloccommon.c

Index: source/libvpx/vp9/common/vp9_alloccommon.c
===================================================================
--- source/libvpx/vp9/common/vp9_alloccommon.c	(revision 284462)
+++ source/libvpx/vp9/common/vp9_alloccommon.c	(working copy)
@@ -28,7 +28,10 @@
     vpx_memset(&mi[i * cm->mi_stride], 0, sizeof(*mi));
 }
 
-static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) {
+void vp9_set_mb_mi(VP9_COMMON *cm, int width, int height) {
+  const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
+  const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
+
   cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
   cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
   cm->mi_stride = cm->mi_cols + MI_BLOCK_SIZE;
@@ -95,7 +98,7 @@
   cm->prev_mi_grid_base = NULL;
 }
 
-void vp9_free_frame_buffers(VP9_COMMON *cm) {
+void vp9_free_ref_frame_buffers(VP9_COMMON *cm) {
   int i;
 
   for (i = 0; i < FRAME_BUFFERS; ++i) {
@@ -124,52 +127,27 @@
   cm->above_seg_context = NULL;
 }
 
-int vp9_resize_frame_buffers(VP9_COMMON *cm, int width, int height) {
-  const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
-  const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
-#if CONFIG_INTERNAL_STATS || CONFIG_VP9_POSTPROC
-  const int ss_x = cm->subsampling_x;
-  const int ss_y = cm->subsampling_y;
+int vp9_alloc_context_buffers(VP9_COMMON *cm, int width, int height) {
+  vp9_free_context_buffers(cm);
 
-  // TODO(agrange): this should be conditionally allocated.
-  if (vp9_realloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
-                               VP9_DEC_BORDER_IN_PIXELS, NULL, NULL, NULL) < 0)
-    goto fail;
-#endif
+  vp9_set_mb_mi(cm, width, height);
+  if (alloc_mi(cm, cm->mi_stride * (cm->mi_rows + MI_BLOCK_SIZE))) goto fail;
 
-  set_mb_mi(cm, aligned_width, aligned_height);
-
-  free_mi(cm);
-  if (alloc_mi(cm, cm->mi_stride * (cm->mi_rows + MI_BLOCK_SIZE)))
-    goto fail;
-
-  setup_mi(cm);
-
-  // Create the segmentation map structure and set to 0.
-  vpx_free(cm->last_frame_seg_map);
   cm->last_frame_seg_map = (uint8_t *)vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
-  if (!cm->last_frame_seg_map)
-    goto fail;
+  if (!cm->last_frame_seg_map) goto fail;
 
-  vpx_free(cm->above_context);
-  cm->above_context =
-      (ENTROPY_CONTEXT *)vpx_calloc(2 * mi_cols_aligned_to_sb(cm->mi_cols) *
-                                        MAX_MB_PLANE,
-                                    sizeof(*cm->above_context));
-  if (!cm->above_context)
-    goto fail;
+  cm->above_context = (ENTROPY_CONTEXT *)vpx_calloc(
+      2 * mi_cols_aligned_to_sb(cm->mi_cols) * MAX_MB_PLANE,
+      sizeof(*cm->above_context));
+  if (!cm->above_context) goto fail;
 
-  vpx_free(cm->above_seg_context);
-  cm->above_seg_context =
-     (PARTITION_CONTEXT *)vpx_calloc(mi_cols_aligned_to_sb(cm->mi_cols),
-                                     sizeof(*cm->above_seg_context));
-  if (!cm->above_seg_context)
-    goto fail;
+  cm->above_seg_context = (PARTITION_CONTEXT *)vpx_calloc(
+      mi_cols_aligned_to_sb(cm->mi_cols), sizeof(*cm->above_seg_context));
+  if (!cm->above_seg_context) goto fail;
 
   return 0;
 
  fail:
-  vp9_free_frame_buffers(cm);
   vp9_free_context_buffers(cm);
   return 1;
 }
@@ -186,12 +164,12 @@
   }
 }
 
-int vp9_alloc_frame_buffers(VP9_COMMON *cm, int width, int height) {
+int vp9_alloc_ref_frame_buffers(VP9_COMMON *cm, int width, int height) {
   int i;
   const int ss_x = cm->subsampling_x;
   const int ss_y = cm->subsampling_y;
 
-  vp9_free_frame_buffers(cm);
+  vp9_free_ref_frame_buffers(cm);
 
   for (i = 0; i < FRAME_BUFFERS; ++i) {
     cm->frame_bufs[i].ref_count = 0;
@@ -211,62 +189,18 @@
   return 0;
 
  fail:
-  vp9_free_frame_buffers(cm);
+  vp9_free_ref_frame_buffers(cm);
   return 1;
 }
 
-int vp9_alloc_context_buffers(VP9_COMMON *cm, int width, int height) {
-  const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
-  const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
-
-  vp9_free_context_buffers(cm);
-
-  set_mb_mi(cm, aligned_width, aligned_height);
-
-  if (alloc_mi(cm, cm->mi_stride * (cm->mi_rows + MI_BLOCK_SIZE)))
-    goto fail;
-
-  setup_mi(cm);
-
-  // Create the segmentation map structure and set to 0.
-  cm->last_frame_seg_map = (uint8_t *)vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
-  if (!cm->last_frame_seg_map)
-    goto fail;
-
-  cm->above_context =
-      (ENTROPY_CONTEXT *)vpx_calloc(2 * mi_cols_aligned_to_sb(cm->mi_cols) *
-                                        MAX_MB_PLANE,
-                                    sizeof(*cm->above_context));
-  if (!cm->above_context)
-    goto fail;
-
-  cm->above_seg_context =
-      (PARTITION_CONTEXT *)vpx_calloc(mi_cols_aligned_to_sb(cm->mi_cols),
-                                      sizeof(*cm->above_seg_context));
-  if (!cm->above_seg_context)
-    goto fail;
-
-  return 0;
-
- fail:
-  vp9_free_context_buffers(cm);
-  return 1;
-}
-
 void vp9_remove_common(VP9_COMMON *cm) {
-  vp9_free_frame_buffers(cm);
+  vp9_free_ref_frame_buffers(cm);
   vp9_free_context_buffers(cm);
   vp9_free_internal_frame_buffers(&cm->int_frame_buffers);
 }
 
-void vp9_update_frame_size(VP9_COMMON *cm) {
-  const int aligned_width = ALIGN_POWER_OF_TWO(cm->width, MI_SIZE_LOG2);
-  const int aligned_height = ALIGN_POWER_OF_TWO(cm->height, MI_SIZE_LOG2);
-
-  set_mb_mi(cm, aligned_width, aligned_height);
+void vp9_init_context_buffers(VP9_COMMON *cm) {
   setup_mi(cm);
-
-  // Initialize the previous frame segment map to 0.
   if (cm->last_frame_seg_map)
     vpx_memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
 }