vpx/vp8/common/findnearmv.h
John Koleszar 429dc676b1 Increase static linkage, remove unused functions
A large number of functions were defined with external linkage, even
though they were only used from within one file. This patch changes
their linkage to static and removes the vp8_ prefix from their names,
which should make it more obvious to the reader that the function is
contained within the current translation unit. Functions that were
not referenced were removed.

These symbols were identified by:

  $ nm -A libvpx.a | sort -k3 | uniq -c -f2 | grep ' [A-Z] ' \
    | sort | grep '^ *1 '

Change-Id: I59609f58ab65312012c047036ae1e0634f795779
2011-03-17 20:53:47 -04:00

76 lines
2.0 KiB
C

/*
* 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 __INC_FINDNEARMV_H
#define __INC_FINDNEARMV_H
#include "mv.h"
#include "blockd.h"
#include "modecont.h"
#include "treecoder.h"
typedef union
{
unsigned int as_int;
MV as_mv;
} int_mv; /* facilitates rapid equality tests */
static void mv_bias(int refmb_ref_frame_sign_bias, int refframe, int_mv *mvp, const int *ref_frame_sign_bias)
{
MV xmv;
xmv = mvp->as_mv;
if (refmb_ref_frame_sign_bias != ref_frame_sign_bias[refframe])
{
xmv.row *= -1;
xmv.col *= -1;
}
mvp->as_mv = xmv;
}
#define LEFT_TOP_MARGIN (16 << 3)
#define RIGHT_BOTTOM_MARGIN (16 << 3)
static void vp8_clamp_mv(MV *mv, const MACROBLOCKD *xd)
{
if (mv->col < (xd->mb_to_left_edge - LEFT_TOP_MARGIN))
mv->col = xd->mb_to_left_edge - LEFT_TOP_MARGIN;
else if (mv->col > xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN)
mv->col = xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN;
if (mv->row < (xd->mb_to_top_edge - LEFT_TOP_MARGIN))
mv->row = xd->mb_to_top_edge - LEFT_TOP_MARGIN;
else if (mv->row > xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN)
mv->row = xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN;
}
void vp8_find_near_mvs
(
MACROBLOCKD *xd,
const MODE_INFO *here,
MV *nearest, MV *nearby, MV *best,
int near_mv_ref_cts[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]
);
const B_MODE_INFO *vp8_left_bmi(const MODE_INFO *cur_mb, int b);
const B_MODE_INFO *vp8_above_bmi(const MODE_INFO *cur_mb, int b, int mi_stride);
extern const unsigned char vp8_mbsplit_offset[4][16];
#endif