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move ff_init_scantable() into dsputil

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Originally committed as revision 12311 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2008-03-04 10:26:56 +00:00
parent 675b8390f6
commit 4c79b95c32
4 changed files with 39 additions and 37 deletions
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24
libavcodec/dsputil.c
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@ -152,6 +152,30 @@ static const uint8_t simple_mmx_permutation[64]={
0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
};
void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable){
int i;
int end;
st->scantable= src_scantable;
for(i=0; i<64; i++){
int j;
j = src_scantable[i];
st->permutated[i] = permutation[j];
#ifdef ARCH_POWERPC
st->inverse[j] = i;
#endif
}
end=-1;
for(i=0; i<64; i++){
int j;
j = st->permutated[i];
if(j>end) end=j;
st->raster_end[i]= end;
}
}
static int pix_sum_c(uint8_t * pix, int line_size)
{
int s, i, j;