static void inline ff_dct_unquantize_h263_neon(int qscale, int qadd, int nCoeffs,
int16_t *block)
{
int16x8_t q0s16, q2s16, q3s16, q8s16, q10s16, q11s16, q13s16;
int16x8_t q14s16, q15s16, qzs16;
int16x4_t d0s16, d2s16, d3s16, dzs16;
uint16x8_t q1u16, q9u16;
uint16x4_t d1u16;
dzs16 = vdup_n_s16(0);
qzs16 = vdupq_n_s16(0);
q15s16 = vdupq_n_s16(qscale << 1);
q14s16 = vdupq_n_s16(qadd);
q13s16 = vnegq_s16(q14s16);
if (nCoeffs > 4) {
for (; nCoeffs > 8; nCoeffs -= 16, block += 16) {
q0s16 = vld1q_s16(block);
q3s16 = vreinterpretq_s16_u16(vcltq_s16(q0s16, qzs16));
q8s16 = vld1q_s16(block + 8);
q1u16 = vceqq_s16(q0s16, qzs16);
q2s16 = vmulq_s16(q0s16, q15s16);
q11s16 = vreinterpretq_s16_u16(vcltq_s16(q8s16, qzs16));
q10s16 = vmulq_s16(q8s16, q15s16);
q3s16 = vbslq_s16(vreinterpretq_u16_s16(q3s16), q13s16, q14s16);
q11s16 = vbslq_s16(vreinterpretq_u16_s16(q11s16), q13s16, q14s16);
q2s16 = vaddq_s16(q2s16, q3s16);
q9u16 = vceqq_s16(q8s16, qzs16);
q10s16 = vaddq_s16(q10s16, q11s16);
q0s16 = vbslq_s16(q1u16, q0s16, q2s16);
q8s16 = vbslq_s16(q9u16, q8s16, q10s16);
vst1q_s16(block, q0s16);
vst1q_s16(block + 8, q8s16);
}
}
if (nCoeffs <= 0)
return;
d0s16 = vld1_s16(block);
d3s16 = vreinterpret_s16_u16(vclt_s16(d0s16, dzs16));
d1u16 = vceq_s16(d0s16, dzs16);
d2s16 = vmul_s16(d0s16, vget_high_s16(q15s16));
d3s16 = vbsl_s16(vreinterpret_u16_s16(d3s16),
vget_high_s16(q13s16), vget_high_s16(q14s16));
d2s16 = vadd_s16(d2s16, d3s16);
d0s16 = vbsl_s16(d1u16, d0s16, d2s16);
vst1_s16(block, d0s16);
}
void test_vcltQs16 (void)
{
uint16x8_t out_uint16x8_t;
int16x8_t arg0_int16x8_t;
int16x8_t arg1_int16x8_t;
out_uint16x8_t = vcltq_s16 (arg0_int16x8_t, arg1_int16x8_t);
}