1 files changed, 151 insertions, 0 deletions

diff --git a/media/libvpx/libvpx/vp8/common/findnearmv.h b/media/libvpx/libvpx/vp8/common/findnearmv.h
new file mode 100644
index 0000000000..d7db9544aa
--- /dev/null
+++ b/media/libvpx/libvpx/vp8/common/findnearmv.h
@@ -0,0 +1,151 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VPX_VP8_COMMON_FINDNEARMV_H_
+#define VPX_VP8_COMMON_FINDNEARMV_H_
+
+#include "./vpx_config.h"
+#include "mv.h"
+#include "blockd.h"
+#include "modecont.h"
+#include "treecoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static INLINE void mv_bias(int refmb_ref_frame_sign_bias, int refframe,
+                           int_mv *mvp, const int *ref_frame_sign_bias) {
+  if (refmb_ref_frame_sign_bias != ref_frame_sign_bias[refframe]) {
+    mvp->as_mv.row *= -1;
+    mvp->as_mv.col *= -1;
+  }
+}
+
+#define LEFT_TOP_MARGIN (16 << 3)
+#define RIGHT_BOTTOM_MARGIN (16 << 3)
+static INLINE void vp8_clamp_mv2(int_mv *mv, const MACROBLOCKD *xd) {
+  if (mv->as_mv.col < (xd->mb_to_left_edge - LEFT_TOP_MARGIN)) {
+    mv->as_mv.col = xd->mb_to_left_edge - LEFT_TOP_MARGIN;
+  } else if (mv->as_mv.col > xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN) {
+    mv->as_mv.col = xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN;
+  }
+
+  if (mv->as_mv.row < (xd->mb_to_top_edge - LEFT_TOP_MARGIN)) {
+    mv->as_mv.row = xd->mb_to_top_edge - LEFT_TOP_MARGIN;
+  } else if (mv->as_mv.row > xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN) {
+    mv->as_mv.row = xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN;
+  }
+}
+
+static INLINE void vp8_clamp_mv(int_mv *mv, int mb_to_left_edge,
+                                int mb_to_right_edge, int mb_to_top_edge,
+                                int mb_to_bottom_edge) {
+  mv->as_mv.col =
+      (mv->as_mv.col < mb_to_left_edge) ? mb_to_left_edge : mv->as_mv.col;
+  mv->as_mv.col =
+      (mv->as_mv.col > mb_to_right_edge) ? mb_to_right_edge : mv->as_mv.col;
+  mv->as_mv.row =
+      (mv->as_mv.row < mb_to_top_edge) ? mb_to_top_edge : mv->as_mv.row;
+  mv->as_mv.row =
+      (mv->as_mv.row > mb_to_bottom_edge) ? mb_to_bottom_edge : mv->as_mv.row;
+}
+static INLINE unsigned int vp8_check_mv_bounds(int_mv *mv, int mb_to_left_edge,
+                                               int mb_to_right_edge,
+                                               int mb_to_top_edge,
+                                               int mb_to_bottom_edge) {
+  unsigned int need_to_clamp;
+  need_to_clamp = (mv->as_mv.col < mb_to_left_edge);
+  need_to_clamp |= (mv->as_mv.col > mb_to_right_edge);
+  need_to_clamp |= (mv->as_mv.row < mb_to_top_edge);
+  need_to_clamp |= (mv->as_mv.row > mb_to_bottom_edge);
+  return need_to_clamp;
+}
+
+void vp8_find_near_mvs(MACROBLOCKD *xd, const MODE_INFO *here, int_mv *nearest,
+                       int_mv *nearby, int_mv *best_mv, int near_mv_ref_cnts[4],
+                       int refframe, int *ref_frame_sign_bias);
+
+int vp8_find_near_mvs_bias(MACROBLOCKD *xd, const MODE_INFO *here,
+                           int_mv mode_mv_sb[2][MB_MODE_COUNT],
+                           int_mv best_mv_sb[2], int cnt[4], int refframe,
+                           int *ref_frame_sign_bias);
+
+vp8_prob *vp8_mv_ref_probs(vp8_prob p[VP8_MVREFS - 1],
+                           const int near_mv_ref_ct[4]);
+
+extern const unsigned char vp8_mbsplit_offset[4][16];
+
+static INLINE uint32_t left_block_mv(const MODE_INFO *cur_mb, int b) {
+  if (!(b & 3)) {
+    /* On L edge, get from MB to left of us */
+    --cur_mb;
+
+    if (cur_mb->mbmi.mode != SPLITMV) return cur_mb->mbmi.mv.as_int;
+    b += 4;
+  }
+
+  return (cur_mb->bmi + b - 1)->mv.as_int;
+}
+
+static INLINE uint32_t above_block_mv(const MODE_INFO *cur_mb, int b,
+                                      int mi_stride) {
+  if (!(b >> 2)) {
+    /* On top edge, get from MB above us */
+    cur_mb -= mi_stride;
+
+    if (cur_mb->mbmi.mode != SPLITMV) return cur_mb->mbmi.mv.as_int;
+    b += 16;
+  }
+
+  return (cur_mb->bmi + (b - 4))->mv.as_int;
+}
+static INLINE B_PREDICTION_MODE left_block_mode(const MODE_INFO *cur_mb,
+                                                int b) {
+  if (!(b & 3)) {
+    /* On L edge, get from MB to left of us */
+    --cur_mb;
+    switch (cur_mb->mbmi.mode) {
+      case B_PRED: return (cur_mb->bmi + b + 3)->as_mode;
+      case DC_PRED: return B_DC_PRED;
+      case V_PRED: return B_VE_PRED;
+      case H_PRED: return B_HE_PRED;
+      case TM_PRED: return B_TM_PRED;
+      default: return B_DC_PRED;
+    }
+  }
+
+  return (cur_mb->bmi + b - 1)->as_mode;
+}
+
+static INLINE B_PREDICTION_MODE above_block_mode(const MODE_INFO *cur_mb, int b,
+                                                 int mi_stride) {
+  if (!(b >> 2)) {
+    /* On top edge, get from MB above us */
+    cur_mb -= mi_stride;
+
+    switch (cur_mb->mbmi.mode) {
+      case B_PRED: return (cur_mb->bmi + b + 12)->as_mode;
+      case DC_PRED: return B_DC_PRED;
+      case V_PRED: return B_VE_PRED;
+      case H_PRED: return B_HE_PRED;
+      case TM_PRED: return B_TM_PRED;
+      default: return B_DC_PRED;
+    }
+  }
+
+  return (cur_mb->bmi + b - 4)->as_mode;
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VP8_COMMON_FINDNEARMV_H_