27 uint64_t qscale, uint64_t qadd)
29 uint64_t qmul = qscale << 1;
30 uint64_t correction =
WORD_VEC(qmul * 255 >> 8);
35 for(
i = 0;
i <= n_coeffs;
block += 4,
i += 4) {
36 uint64_t levels, negmask, zeros, add, sub;
45 negmask =
maxsw4(levels, -1);
46 negmask =
minsw4(negmask, 0);
49 negmask &= (negmask >> 1) | (1 << 7);
50 negmask =
zap(-1, negmask);
59 levels -= correction & (negmask << 16);
61 add = qadd & ~negmask;
64 add =
zap(add, zeros);
77 int16_t block0 =
block[0];
81 block0 *=
s->y_dc_scale;
83 block0 *=
s->c_dc_scale;
84 qadd = (qscale - 1) | 1;
92 n_coeffs =
s->inter_scantable.raster_end[
s->block_last_index[n]];
102 int n_coeffs =
s->inter_scantable.raster_end[
s->block_last_index[n]];