ref: 07c6eb18ade194df97bb7f5ae686dce0574dc27f
parent: 749bc98618c8b75bc44dedecb5f18dd3b6c78bf1
parent: 8a6af9f98fa684e7aca989dadbdc87adfca13707
author: Scott LaVarnway <slavarnway@google.com>
date: Tue Jan 31 05:43:49 EST 2012
Merge "Improved uv mv calculations in build inter predictor"
--- a/vp8/common/reconinter.c
+++ b/vp8/common/reconinter.c
@@ -9,6 +9,7 @@
*/
+#include <limits.h>
#include "vpx_config.h"
#include "vpx_rtcd.h"
#include "vpx/vpx_integer.h"
@@ -223,19 +224,10 @@
int pre_stride = x->pre.uv_stride;
/* calc uv motion vectors */
- if (mv_row < 0)
- mv_row -= 1;
- else
- mv_row += 1;
-
- if (mv_col < 0)
- mv_col -= 1;
- else
- mv_col += 1;
-
+ mv_row += 1 | (mv_row >> (sizeof(int) * CHAR_BIT - 1));
+ mv_col += 1 | (mv_col >> (sizeof(int) * CHAR_BIT - 1));
mv_row /= 2;
mv_col /= 2;
-
mv_row &= x->fullpixel_mask;
mv_col &= x->fullpixel_mask;
@@ -278,8 +270,7 @@
+ x->block[yoffset+4].bmi.mv.as_mv.row
+ x->block[yoffset+5].bmi.mv.as_mv.row;
- if (temp < 0) temp -= 4;
- else temp += 4;
+ temp += 4 + ((temp >> (sizeof(int) * CHAR_BIT - 1)) << 3);
x->block[uoffset].bmi.mv.as_mv.row = (temp / 8) & x->fullpixel_mask;
@@ -288,15 +279,11 @@
+ x->block[yoffset+4].bmi.mv.as_mv.col
+ x->block[yoffset+5].bmi.mv.as_mv.col;
- if (temp < 0) temp -= 4;
- else temp += 4;
+ temp += 4 + ((temp >> (sizeof(int) * CHAR_BIT - 1)) << 3);
x->block[uoffset].bmi.mv.as_mv.col = (temp / 8) & x->fullpixel_mask;
- x->block[voffset].bmi.mv.as_mv.row =
- x->block[uoffset].bmi.mv.as_mv.row ;
- x->block[voffset].bmi.mv.as_mv.col =
- x->block[uoffset].bmi.mv.as_mv.col ;
+ x->block[voffset].bmi.mv.as_int = x->block[uoffset].bmi.mv.as_int;
}
}
@@ -429,19 +416,10 @@
}
/* calc uv motion vectors */
- if ( _16x16mv.as_mv.row < 0)
- _16x16mv.as_mv.row -= 1;
- else
- _16x16mv.as_mv.row += 1;
-
- if (_16x16mv.as_mv.col < 0)
- _16x16mv.as_mv.col -= 1;
- else
- _16x16mv.as_mv.col += 1;
-
+ _16x16mv.as_mv.row += 1 | (_16x16mv.as_mv.row >> (sizeof(int) * CHAR_BIT - 1));
+ _16x16mv.as_mv.col += 1 | (_16x16mv.as_mv.col >> (sizeof(int) * CHAR_BIT - 1));
_16x16mv.as_mv.row /= 2;
_16x16mv.as_mv.col /= 2;
-
_16x16mv.as_mv.row &= x->fullpixel_mask;
_16x16mv.as_mv.col &= x->fullpixel_mask;
@@ -580,8 +558,7 @@
+ x->mode_info_context->bmi[yoffset + 4].mv.as_mv.row
+ x->mode_info_context->bmi[yoffset + 5].mv.as_mv.row;
- if (temp < 0) temp -= 4;
- else temp += 4;
+ temp += 4 + ((temp >> (sizeof(int) * CHAR_BIT - 1)) << 3);
x->block[uoffset].bmi.mv.as_mv.row = (temp / 8) & x->fullpixel_mask;
@@ -590,8 +567,7 @@
+ x->mode_info_context->bmi[yoffset + 4].mv.as_mv.col
+ x->mode_info_context->bmi[yoffset + 5].mv.as_mv.col;
- if (temp < 0) temp -= 4;
- else temp += 4;
+ temp += 4 + ((temp >> (sizeof(int) * CHAR_BIT - 1)) << 3);
x->block[uoffset].bmi.mv.as_mv.col = (temp / 8) & x->fullpixel_mask;
@@ -598,10 +574,7 @@
if (x->mode_info_context->mbmi.need_to_clamp_mvs)
clamp_uvmv_to_umv_border(&x->block[uoffset].bmi.mv.as_mv, x);
- x->block[voffset].bmi.mv.as_mv.row =
- x->block[uoffset].bmi.mv.as_mv.row ;
- x->block[voffset].bmi.mv.as_mv.col =
- x->block[uoffset].bmi.mv.as_mv.col ;
+ x->block[voffset].bmi.mv.as_int = x->block[uoffset].bmi.mv.as_int;
}
}
}