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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <smmintrin.h>
#include <stdint.h>
#include "./av1_rtcd.h"
#include "aom_dsp/aom_dsp_common.h"
// Coefficient quantization phase 1
// param[0-2] : rounding/quan/dequan constants
static INLINE void quantize_coeff_phase1(__m128i *coeff, const __m128i *param,
const int shift, const int scale,
__m128i *qcoeff, __m128i *dquan,
__m128i *sign) {
const __m128i zero = _mm_setzero_si128();
const __m128i one = _mm_set1_epi32(1);
*sign = _mm_cmplt_epi32(*coeff, zero);
*sign = _mm_or_si128(*sign, one);
*coeff = _mm_abs_epi32(*coeff);
qcoeff[0] = _mm_add_epi32(*coeff, param[0]);
qcoeff[1] = _mm_unpackhi_epi32(qcoeff[0], zero);
qcoeff[0] = _mm_unpacklo_epi32(qcoeff[0], zero);
qcoeff[0] = _mm_mul_epi32(qcoeff[0], param[1]);
qcoeff[0] = _mm_srli_epi64(qcoeff[0], shift);
dquan[0] = _mm_mul_epi32(qcoeff[0], param[2]);
dquan[0] = _mm_srli_epi64(dquan[0], scale);
}
// Coefficient quantization phase 2
static INLINE void quantize_coeff_phase2(__m128i *qcoeff, __m128i *dquan,
const __m128i *sign,
const __m128i *param, const int shift,
const int scale, tran_low_t *qAddr,
tran_low_t *dqAddr) {
__m128i mask0L = _mm_set_epi32(-1, -1, 0, 0);
__m128i mask0H = _mm_set_epi32(0, 0, -1, -1);
qcoeff[1] = _mm_mul_epi32(qcoeff[1], param[1]);
qcoeff[1] = _mm_srli_epi64(qcoeff[1], shift);
dquan[1] = _mm_mul_epi32(qcoeff[1], param[2]);
dquan[1] = _mm_srli_epi64(dquan[1], scale);
// combine L&H
qcoeff[0] = _mm_shuffle_epi32(qcoeff[0], 0xd8);
qcoeff[1] = _mm_shuffle_epi32(qcoeff[1], 0x8d);
qcoeff[0] = _mm_and_si128(qcoeff[0], mask0H);
qcoeff[1] = _mm_and_si128(qcoeff[1], mask0L);
dquan[0] = _mm_shuffle_epi32(dquan[0], 0xd8);
dquan[1] = _mm_shuffle_epi32(dquan[1], 0x8d);
dquan[0] = _mm_and_si128(dquan[0], mask0H);
dquan[1] = _mm_and_si128(dquan[1], mask0L);
qcoeff[0] = _mm_or_si128(qcoeff[0], qcoeff[1]);
dquan[0] = _mm_or_si128(dquan[0], dquan[1]);
qcoeff[0] = _mm_sign_epi32(qcoeff[0], *sign);
dquan[0] = _mm_sign_epi32(dquan[0], *sign);
_mm_storeu_si128((__m128i *)qAddr, qcoeff[0]);
_mm_storeu_si128((__m128i *)dqAddr, dquan[0]);
}
static INLINE void find_eob(tran_low_t *qcoeff_ptr, const int16_t *iscan,
__m128i *eob) {
const __m128i zero = _mm_setzero_si128();
__m128i mask, iscanIdx;
const __m128i q0 = _mm_loadu_si128((__m128i const *)qcoeff_ptr);
const __m128i q1 = _mm_loadu_si128((__m128i const *)(qcoeff_ptr + 4));
__m128i nz_flag0 = _mm_cmpeq_epi32(q0, zero);
__m128i nz_flag1 = _mm_cmpeq_epi32(q1, zero);
nz_flag0 = _mm_cmpeq_epi32(nz_flag0, zero);
nz_flag1 = _mm_cmpeq_epi32(nz_flag1, zero);
mask = _mm_packs_epi32(nz_flag0, nz_flag1);
iscanIdx = _mm_loadu_si128((__m128i const *)iscan);
iscanIdx = _mm_sub_epi16(iscanIdx, mask);
iscanIdx = _mm_and_si128(iscanIdx, mask);
*eob = _mm_max_epi16(*eob, iscanIdx);
}
static INLINE uint16_t get_accumulated_eob(__m128i *eob) {
__m128i eob_shuffled;
uint16_t eobValue;
eob_shuffled = _mm_shuffle_epi32(*eob, 0xe);
*eob = _mm_max_epi16(*eob, eob_shuffled);
eob_shuffled = _mm_shufflelo_epi16(*eob, 0xe);
*eob = _mm_max_epi16(*eob, eob_shuffled);
eob_shuffled = _mm_shufflelo_epi16(*eob, 0x1);
*eob = _mm_max_epi16(*eob, eob_shuffled);
eobValue = _mm_extract_epi16(*eob, 0);
return eobValue;
}
void av1_highbd_quantize_fp_sse4_1(
const tran_low_t *coeff_ptr, intptr_t count, int skip_block,
const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr,
const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
const int16_t *scan, const int16_t *iscan, int log_scale) {
__m128i coeff[2], qcoeff[2], dequant[2], qparam[3], coeff_sign;
__m128i eob = _mm_setzero_si128();
const tran_low_t *src = coeff_ptr;
tran_low_t *quanAddr = qcoeff_ptr;
tran_low_t *dquanAddr = dqcoeff_ptr;
const int shift = 16 - log_scale;
const int coeff_stride = 4;
const int quan_stride = coeff_stride;
(void)skip_block;
(void)zbin_ptr;
(void)quant_shift_ptr;
(void)scan;
memset(quanAddr, 0, count * sizeof(quanAddr[0]));
memset(dquanAddr, 0, count * sizeof(dquanAddr[0]));
if (!skip_block) {
coeff[0] = _mm_loadu_si128((__m128i const *)src);
qparam[0] =
_mm_set_epi32(round_ptr[1] >> log_scale, round_ptr[1] >> log_scale,
round_ptr[1] >> log_scale, round_ptr[0] >> log_scale);
qparam[1] = _mm_set_epi32(0, quant_ptr[1], 0, quant_ptr[0]);
qparam[2] = _mm_set_epi32(0, dequant_ptr[1], 0, dequant_ptr[0]);
// DC and first 3 AC
quantize_coeff_phase1(&coeff[0], qparam, shift, log_scale, qcoeff, dequant,
&coeff_sign);
// update round/quan/dquan for AC
qparam[0] = _mm_unpackhi_epi64(qparam[0], qparam[0]);
qparam[1] = _mm_set_epi32(0, quant_ptr[1], 0, quant_ptr[1]);
qparam[2] = _mm_set_epi32(0, dequant_ptr[1], 0, dequant_ptr[1]);
quantize_coeff_phase2(qcoeff, dequant, &coeff_sign, qparam, shift,
log_scale, quanAddr, dquanAddr);
// next 4 AC
coeff[1] = _mm_loadu_si128((__m128i const *)(src + coeff_stride));
quantize_coeff_phase1(&coeff[1], qparam, shift, log_scale, qcoeff, dequant,
&coeff_sign);
quantize_coeff_phase2(qcoeff, dequant, &coeff_sign, qparam, shift,
log_scale, quanAddr + quan_stride,
dquanAddr + quan_stride);
find_eob(quanAddr, iscan, &eob);
count -= 8;
// loop for the rest of AC
while (count > 0) {
src += coeff_stride << 1;
quanAddr += quan_stride << 1;
dquanAddr += quan_stride << 1;
iscan += quan_stride << 1;
coeff[0] = _mm_loadu_si128((__m128i const *)src);
coeff[1] = _mm_loadu_si128((__m128i const *)(src + coeff_stride));
quantize_coeff_phase1(&coeff[0], qparam, shift, log_scale, qcoeff,
dequant, &coeff_sign);
quantize_coeff_phase2(qcoeff, dequant, &coeff_sign, qparam, shift,
log_scale, quanAddr, dquanAddr);
quantize_coeff_phase1(&coeff[1], qparam, shift, log_scale, qcoeff,
dequant, &coeff_sign);
quantize_coeff_phase2(qcoeff, dequant, &coeff_sign, qparam, shift,
log_scale, quanAddr + quan_stride,
dquanAddr + quan_stride);
find_eob(quanAddr, iscan, &eob);
count -= 8;
}
*eob_ptr = get_accumulated_eob(&eob);
} else {
*eob_ptr = 0;
}
}
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