/*
 * 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 "aom_dsp_rtcd.h"
#include <emmintrin.h>
#include <smmintrin.h>
#include <xmmintrin.h>
#include "synonyms.h"

static INLINE void read_coeff(const TranLow *coeff, intptr_t offset, __m128i *c0, __m128i *c1) {
    const TranLow *addr = coeff + offset;
    if (sizeof(TranLow) == 4) {
        const __m128i x0 = _mm_loadu_si128((const __m128i *)addr);
        const __m128i x1 = _mm_loadu_si128((const __m128i *)addr + 1);
        const __m128i x2 = _mm_loadu_si128((const __m128i *)addr + 2);
        const __m128i x3 = _mm_loadu_si128((const __m128i *)addr + 3);
        *c0              = _mm_packs_epi32(x0, x1);
        *c1              = _mm_packs_epi32(x2, x3);
    } else {
        *c0 = _mm_loadu_si128((const __m128i *)addr);
        *c1 = _mm_loadu_si128((const __m128i *)addr + 1);
    }
}

static INLINE void write_qcoeff(const __m128i *qc0, const __m128i *qc1, TranLow *qcoeff, intptr_t offset) {
    TranLow *addr = qcoeff + offset;
    if (sizeof(TranLow) == 4) {
        const __m128i zero      = _mm_setzero_si128();
        __m128i       sign_bits = _mm_cmplt_epi16(*qc0, zero);
        __m128i       y0        = _mm_unpacklo_epi16(*qc0, sign_bits);
        __m128i       y1        = _mm_unpackhi_epi16(*qc0, sign_bits);
        _mm_storeu_si128((__m128i *)addr, y0);
        _mm_storeu_si128((__m128i *)addr + 1, y1);

        sign_bits = _mm_cmplt_epi16(*qc1, zero);
        y0        = _mm_unpacklo_epi16(*qc1, sign_bits);
        y1        = _mm_unpackhi_epi16(*qc1, sign_bits);
        _mm_storeu_si128((__m128i *)addr + 2, y0);
        _mm_storeu_si128((__m128i *)addr + 3, y1);
    } else {
        _mm_storeu_si128((__m128i *)addr, *qc0);
        _mm_storeu_si128((__m128i *)addr + 1, *qc1);
    }
}

static INLINE void write_zero(TranLow *qcoeff, intptr_t offset) {
    const __m128i zero = _mm_setzero_si128();
    TranLow      *addr = qcoeff + offset;
    if (sizeof(TranLow) == 4) {
        _mm_storeu_si128((__m128i *)addr, zero);
        _mm_storeu_si128((__m128i *)addr + 1, zero);
        _mm_storeu_si128((__m128i *)addr + 2, zero);
        _mm_storeu_si128((__m128i *)addr + 3, zero);
    } else {
        _mm_storeu_si128((__m128i *)addr, zero);
        _mm_storeu_si128((__m128i *)addr + 1, zero);
    }
}

static INLINE void quantize(const int16_t *iscan_ptr, const TranLow *coeff_ptr, intptr_t n_coeffs, TranLow *qcoeff_ptr,
                            TranLow *dqcoeff_ptr, const __m128i *round0, const __m128i *round1, const __m128i *quant0,
                            const __m128i *quant1, const __m128i *dequant0, const __m128i *dequant1,
                            const __m128i *thr0, const __m128i *thr1, __m128i *eob) {
    __m128i coeff0, coeff1;
    // Do DC and first 15 AC
    read_coeff(coeff_ptr, n_coeffs, &coeff0, &coeff1);

    // Poor man's sign extract
    const __m128i coeff0_sign = _mm_srai_epi16(coeff0, 15);
    const __m128i coeff1_sign = _mm_srai_epi16(coeff1, 15);
    __m128i       qcoeff0     = _mm_xor_si128(coeff0, coeff0_sign);
    __m128i       qcoeff1     = _mm_xor_si128(coeff1, coeff1_sign);
    qcoeff0                   = _mm_sub_epi16(qcoeff0, coeff0_sign);
    qcoeff1                   = _mm_sub_epi16(qcoeff1, coeff1_sign);
    const __m128i mask0       = _mm_or_si128(_mm_cmpgt_epi16(qcoeff0, *thr0), _mm_cmpeq_epi16(qcoeff0, *thr0));
    const __m128i mask1       = _mm_or_si128(_mm_cmpgt_epi16(qcoeff1, *thr1), _mm_cmpeq_epi16(qcoeff1, *thr1));
    const int     nzflag      = _mm_movemask_epi8(mask0) | _mm_movemask_epi8(mask1);

    if (nzflag) {
        qcoeff0             = _mm_adds_epi16(qcoeff0, *round0);
        qcoeff1             = _mm_adds_epi16(qcoeff1, *round1);
        const __m128i qtmp0 = _mm_mulhi_epi16(qcoeff0, *quant0);
        const __m128i qtmp1 = _mm_mulhi_epi16(qcoeff1, *quant1);

        // Reinsert signs
        qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign);
        qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign);
        qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
        qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);

        write_qcoeff(&qcoeff0, &qcoeff1, qcoeff_ptr, n_coeffs);

        coeff0 = _mm_mullo_epi16(qcoeff0, *dequant0);
        coeff1 = _mm_mullo_epi16(qcoeff1, *dequant1);

        write_qcoeff(&coeff0, &coeff1, dqcoeff_ptr, n_coeffs);

        const __m128i zero = _mm_setzero_si128();
        // Scan for eob
        const __m128i zero_coeff0  = _mm_cmpeq_epi16(coeff0, zero);
        const __m128i zero_coeff1  = _mm_cmpeq_epi16(coeff1, zero);
        const __m128i nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
        const __m128i nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
        const __m128i iscan0       = _mm_loadu_si128((const __m128i *)(iscan_ptr + n_coeffs));
        const __m128i iscan1       = _mm_loadu_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
        // Add one to convert from indices to counts
        const __m128i iscan0_nz = _mm_sub_epi16(iscan0, nzero_coeff0);
        const __m128i iscan1_nz = _mm_sub_epi16(iscan1, nzero_coeff1);
        const __m128i eob0      = _mm_and_si128(iscan0_nz, nzero_coeff0);
        const __m128i eob1      = _mm_and_si128(iscan1_nz, nzero_coeff1);
        const __m128i eob2      = _mm_max_epi16(eob0, eob1);
        *eob                    = _mm_max_epi16(*eob, eob2);
    } else {
        write_zero(qcoeff_ptr, n_coeffs);
        write_zero(dqcoeff_ptr, n_coeffs);
    }
}

void svt_av1_quantize_fp_sse4_1(const TranLow *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
                                const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr,
                                TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr, const int16_t *dequant_ptr,
                                uint16_t *eob_ptr, const int16_t *scan_ptr, const int16_t *iscan_ptr) {
    (void)scan_ptr;
    (void)zbin_ptr;
    (void)quant_shift_ptr;

    coeff_ptr += n_coeffs;
    iscan_ptr += n_coeffs;
    qcoeff_ptr += n_coeffs;
    dqcoeff_ptr += n_coeffs;
    n_coeffs = -n_coeffs;

    const __m128i round0   = _mm_loadu_si128((const __m128i *)round_ptr);
    const __m128i round1   = _mm_unpackhi_epi64(round0, round0);
    const __m128i quant0   = _mm_loadu_si128((const __m128i *)quant_ptr);
    const __m128i quant1   = _mm_unpackhi_epi64(quant0, quant0);
    const __m128i dequant0 = _mm_loadu_si128((const __m128i *)dequant_ptr);
    const __m128i dequant1 = _mm_unpackhi_epi64(dequant0, dequant0);
    const __m128i thr0     = _mm_srai_epi16(dequant0, 1);
    const __m128i thr1     = _mm_srai_epi16(dequant1, 1);
    __m128i       eob      = _mm_setzero_si128();

    quantize(iscan_ptr,
             coeff_ptr,
             n_coeffs,
             qcoeff_ptr,
             dqcoeff_ptr,
             &round0,
             &round1,
             &quant0,
             &quant1,
             &dequant0,
             &dequant1,
             &thr0,
             &thr1,
             &eob);

    n_coeffs += 8 * 2;

    // AC only loop
    while (n_coeffs < 0) {
        quantize(iscan_ptr,
                 coeff_ptr,
                 n_coeffs,
                 qcoeff_ptr,
                 dqcoeff_ptr,
                 &round1,
                 &round1,
                 &quant1,
                 &quant1,
                 &dequant1,
                 &dequant1,
                 &thr1,
                 &thr1,
                 &eob);
        n_coeffs += 8 * 2;
    }

    // Accumulate EOB
    {
        __m128i eob_shuffled;
        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);
        *eob_ptr     = _mm_extract_epi16(eob, 1);
    }
}

static INLINE void init_qp_add_shift(const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr,
                                     const int16_t *dequant_ptr, const int16_t *quant_shift_ptr, __m128i *qp,
                                     const int add_shift) {
    __m128i       zbin        = _mm_loadl_epi64((const __m128i *)zbin_ptr);
    __m128i       round       = _mm_loadl_epi64((const __m128i *)round_ptr);
    const __m128i quant       = _mm_loadl_epi64((const __m128i *)quant_ptr);
    const __m128i dequant     = _mm_loadl_epi64((const __m128i *)dequant_ptr);
    const __m128i quant_shift = _mm_loadl_epi64((const __m128i *)quant_shift_ptr);
    if (add_shift) {
        const __m128i add = _mm_set1_epi16((int16_t)add_shift);
        zbin              = _mm_add_epi16(zbin, add);
        round             = _mm_add_epi16(round, add);
        zbin              = _mm_srli_epi16(zbin, add_shift);
        round             = _mm_srli_epi16(round, add_shift);
    }
    qp[0] = _mm_cvtepi16_epi32(zbin);
    qp[1] = _mm_cvtepi16_epi32(round);
    qp[2] = _mm_cvtepi16_epi32(quant);
    qp[3] = _mm_cvtepi16_epi32(dequant);
    qp[4] = _mm_cvtepi16_epi32(quant_shift);
}

static INLINE void mm_mul_shift_epi32(const __m128i *x, const __m128i *y, __m128i *p, int shift) {
    __m128i prod_lo       = _mm_mul_epi32(*x, *y);
    prod_lo               = _mm_srli_epi64(prod_lo, shift);
    __m128i       prod_hi = _mm_srli_epi64(*x, 32);
    const __m128i mult_hi = _mm_srli_epi64(*y, 32);
    prod_hi               = _mm_mul_epi32(prod_hi, mult_hi);

    prod_hi = _mm_srli_epi64(prod_hi, shift);

    prod_hi = _mm_slli_epi64(prod_hi, 32);
    *p      = _mm_blend_epi16(prod_lo, prod_hi, 0xCC); //interleave prod_lo, prod_hi
}

static INLINE void clamp_epi32(__m128i *x, __m128i min, __m128i max) {
    *x = _mm_min_epi32(*x, max);
    *x = _mm_max_epi32(*x, min);
}

static INLINE void quantize_128(const __m128i *qp, __m128i c, const int16_t *iscan_ptr, TranLow *qcoeff,
                                TranLow *dqcoeff, __m128i *eob, __m128i min, __m128i max, int shift_dq) {
    const __m128i zero   = _mm_setzero_si128();
    const __m128i abs    = _mm_abs_epi32(c);
    const __m128i flag1  = _mm_cmpgt_epi32(qp[0], abs);
    const int32_t nzflag = _mm_movemask_epi8(flag1);

    if (EB_LIKELY(~nzflag)) {
        __m128i q = _mm_add_epi32(abs, qp[1]);
        clamp_epi32(&q, min, max);
        __m128i tmp;
        mm_mul_shift_epi32(&q, &qp[2], &tmp, 16);
        q = _mm_add_epi32(tmp, q);

        mm_mul_shift_epi32(&q, &qp[4], &q, 16 - shift_dq);
        __m128i dq = _mm_mullo_epi32(q, qp[3]);
        dq         = _mm_srli_epi32(dq, shift_dq);

        q  = _mm_sign_epi32(q, c);
        dq = _mm_sign_epi32(dq, c);
        q  = _mm_andnot_si128(flag1, q);
        dq = _mm_andnot_si128(flag1, dq);

        _mm_storeu_si128((__m128i *)qcoeff, q);
        _mm_storeu_si128((__m128i *)dqcoeff, dq);

        const __m128i isc   = _mm_loadl_epi64((const __m128i *)iscan_ptr);
        const __m128i iscan = _mm_cvtepi16_epi32(isc);

        const __m128i zc      = _mm_cmpeq_epi32(dq, zero);
        const __m128i nz      = _mm_cmpeq_epi32(zc, zero);
        __m128i       cur_eob = _mm_sub_epi32(iscan, nz);
        cur_eob               = _mm_and_si128(cur_eob, nz);
        *eob                  = _mm_max_epi32(cur_eob, *eob);
    } else {
        _mm_storeu_si128((__m128i *)qcoeff, zero);
        _mm_storeu_si128((__m128i *)dqcoeff, zero);
    }
}

void svt_aom_quantize_b_sse4_1(const TranLow *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
                               const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr,
                               TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
                               const int16_t *scan, const int16_t *iscan, const QmVal *qm_ptr, const QmVal *iqm_ptr,
                               const int32_t log_scale) {
    (void)qm_ptr;
    (void)iqm_ptr;
    (void)scan;
    const uint32_t step = 4;

    __m128i qp[5], coeff;
    init_qp_add_shift(zbin_ptr, round_ptr, quant_ptr, dequant_ptr, quant_shift_ptr, qp, log_scale);
    coeff = _mm_loadu_si128((const __m128i *)coeff_ptr);

    __m128i eob = _mm_setzero_si128();
    __m128i min = _mm_set1_epi32(INT16_MIN);
    __m128i max = _mm_set1_epi32(INT16_MAX);
    quantize_128(qp, coeff, iscan, qcoeff_ptr, dqcoeff_ptr, &eob, min, max, log_scale);
    //Equivalent to update_qp(qp) from svt_aom_quantize_b_avx2 is calling init_qp_add_shift() with pointers + 4
    init_qp_add_shift(zbin_ptr + 4, round_ptr + 4, quant_ptr + 4, dequant_ptr + 4, quant_shift_ptr + 4, qp, log_scale);

    while (n_coeffs > step) {
        coeff_ptr += step;
        qcoeff_ptr += step;
        dqcoeff_ptr += step;
        iscan += step;
        n_coeffs -= step;

        coeff = _mm_loadu_si128((const __m128i *)coeff_ptr);
        quantize_128(qp, coeff, iscan, qcoeff_ptr, dqcoeff_ptr, &eob, min, max, log_scale);
    }
    {
        __m128i eob_s;
        eob_s                   = _mm_shuffle_epi32(eob, 0xe);
        eob                     = _mm_max_epi16(eob, eob_s);
        eob_s                   = _mm_shufflelo_epi16(eob, 0xe);
        eob                     = _mm_max_epi16(eob, eob_s);
        eob_s                   = _mm_shufflelo_epi16(eob, 1);
        const __m128i final_eob = _mm_max_epi16(eob, eob_s);
        *eob_ptr                = _mm_extract_epi16(final_eob, 0);
    }
}

// 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);
    const __m128i abs_s = _mm_slli_epi32(*coeff, 1 + scale);
    qcoeff[2]           = _mm_cmplt_epi32(abs_s, param[3]);
}

// 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, TranLow *qAddr, TranLow *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);
    qcoeff[0] = _mm_andnot_si128(qcoeff[2], qcoeff[0]);
    dquan[0]  = _mm_andnot_si128(qcoeff[2], dquan[0]);
    _mm_storeu_si128((__m128i *)qAddr, qcoeff[0]);
    _mm_storeu_si128((__m128i *)dqAddr, dquan[0]);
}

static INLINE void find_eob(TranLow *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 svt_av1_highbd_quantize_fp_sse4_1(const TranLow *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
                                       const int16_t *round_ptr, const int16_t *quant_ptr,
                                       const int16_t *quant_shift_ptr, TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr,
                                       const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan,
                                       const int16_t *iscan, int16_t log_scale) {
    __m128i        coeff[2], qcoeff[3], dequant[2], qparam[4], coeff_sign;
    __m128i        eob          = _mm_setzero_si128();
    const TranLow *src          = coeff_ptr;
    TranLow       *quanAddr     = qcoeff_ptr;
    TranLow       *dquanAddr    = dqcoeff_ptr;
    const int      shift        = 16 - log_scale;
    const int      coeff_stride = 4;
    const int      quan_stride  = coeff_stride;
    (void)zbin_ptr;
    (void)quant_shift_ptr;
    (void)scan;

    memset(quanAddr, 0, n_coeffs * sizeof(quanAddr[0]));
    memset(dquanAddr, 0, n_coeffs * sizeof(dquanAddr[0]));

    coeff[0]         = _mm_loadu_si128((__m128i const *)src);
    const int round1 = ROUND_POWER_OF_TWO(round_ptr[1], log_scale);
    const int round0 = ROUND_POWER_OF_TWO(round_ptr[0], log_scale);

    qparam[0] = _mm_set_epi32(round1, round1, round1, round0);
    qparam[1] = xx_set_64_from_32i(quant_ptr[1], quant_ptr[0]);
    qparam[2] = xx_set_64_from_32i(dequant_ptr[1], dequant_ptr[0]);
    qparam[3] = _mm_set_epi32(dequant_ptr[1], dequant_ptr[1], dequant_ptr[1], 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] = xx_set1_64_from_32i(quant_ptr[1]);
    qparam[2] = xx_set1_64_from_32i(dequant_ptr[1]);
    qparam[3] = _mm_set1_epi32(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);

    n_coeffs -= 8;

    // loop for the rest of AC
    while (n_coeffs > 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);

        n_coeffs -= 8;
    }
    *eob_ptr = get_accumulated_eob(&eob);
}

static INLINE void quantize_hbd_128(const __m128i *qp, __m128i c, const int16_t *iscan_ptr, TranLow *qcoeff,
                                    TranLow *dqcoeff, __m128i *eob, int shift_dq) {
    const __m128i zero   = _mm_setzero_si128();
    const __m128i abs    = _mm_abs_epi32(c);
    const __m128i flag1  = _mm_cmpgt_epi32(qp[0], abs);
    const int32_t nzflag = _mm_movemask_epi8(flag1);

    if (EB_LIKELY(~nzflag)) {
        __m128i q = _mm_add_epi32(abs, qp[1]);
        __m128i tmp;
        mm_mul_shift_epi32(&q, &qp[2], &tmp, 16);
        q = _mm_add_epi32(tmp, q);

        mm_mul_shift_epi32(&q, &qp[4], &q, 16 - shift_dq);
        __m128i dq = _mm_mullo_epi32(q, qp[3]);
        dq         = _mm_srli_epi32(dq, shift_dq);

        q  = _mm_sign_epi32(q, c);
        dq = _mm_sign_epi32(dq, c);
        q  = _mm_andnot_si128(flag1, q);
        dq = _mm_andnot_si128(flag1, dq);

        _mm_storeu_si128((__m128i *)qcoeff, q);
        _mm_storeu_si128((__m128i *)dqcoeff, dq);

        const __m128i isc   = _mm_loadl_epi64((const __m128i *)iscan_ptr);
        const __m128i iscan = _mm_cvtepi16_epi32(isc);

        const __m128i zc      = _mm_cmpeq_epi32(dq, zero);
        const __m128i nz      = _mm_cmpeq_epi32(zc, zero);
        __m128i       cur_eob = _mm_sub_epi32(iscan, nz);
        cur_eob               = _mm_and_si128(cur_eob, nz);
        *eob                  = _mm_max_epi32(cur_eob, *eob);
    } else {
        _mm_storeu_si128((__m128i *)qcoeff, zero);
        _mm_storeu_si128((__m128i *)dqcoeff, zero);
    }
}

void svt_aom_highbd_quantize_b_sse4_1(const TranLow *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
                                      const int16_t *round_ptr, const int16_t *quant_ptr,
                                      const int16_t *quant_shift_ptr, TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr,
                                      const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan,
                                      const int16_t *iscan, const QmVal *qm_ptr, const QmVal *iqm_ptr,
                                      const int32_t log_scale) {
    (void)qm_ptr;
    (void)iqm_ptr;
    (void)scan;
    const uint32_t step = 4;

    __m128i qp[5], coeff;
    init_qp_add_shift(zbin_ptr, round_ptr, quant_ptr, dequant_ptr, quant_shift_ptr, qp, log_scale);
    coeff = _mm_loadu_si128((const __m128i *)coeff_ptr);

    __m128i eob = _mm_setzero_si128();
    quantize_hbd_128(qp, coeff, iscan, qcoeff_ptr, dqcoeff_ptr, &eob, log_scale);
    init_qp_add_shift(zbin_ptr + 4, round_ptr + 4, quant_ptr + 4, dequant_ptr + 4, quant_shift_ptr + 4, qp, log_scale);

    while (n_coeffs > step) {
        coeff_ptr += step;
        qcoeff_ptr += step;
        dqcoeff_ptr += step;
        iscan += step;
        n_coeffs -= step;
        coeff = _mm_loadu_si128((const __m128i *)coeff_ptr);
        quantize_hbd_128(qp, coeff, iscan, qcoeff_ptr, dqcoeff_ptr, &eob, log_scale);
    }
    {
        __m128i eob_s;
        eob_s                   = _mm_shuffle_epi32(eob, 0xe);
        eob                     = _mm_max_epi16(eob, eob_s);
        eob_s                   = _mm_shufflelo_epi16(eob, 0xe);
        eob                     = _mm_max_epi16(eob, eob_s);
        eob_s                   = _mm_shufflelo_epi16(eob, 1);
        const __m128i final_eob = _mm_max_epi16(eob, eob_s);
        *eob_ptr                = _mm_extract_epi16(final_eob, 0);
    }
}

static INLINE void quantize_32x32(const int16_t *iscan_ptr, const TranLow *coeff_ptr, intptr_t n_coeffs,
                                  TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr, const __m128i *round0,
                                  const __m128i *round1, const __m128i *quant0, const __m128i *quant1,
                                  const __m128i *dequant0, const __m128i *dequant1, const __m128i *thr0,
                                  const __m128i *thr1, __m128i *eob) {
    __m128i coeff0, coeff1;
    // Do DC and first 15 AC
    read_coeff(coeff_ptr, n_coeffs, &coeff0, &coeff1);

    __m128i       qcoeff0 = _mm_abs_epi16(coeff0);
    __m128i       qcoeff1 = _mm_abs_epi16(coeff1);
    const __m128i mask0   = _mm_or_si128(_mm_cmpgt_epi16(qcoeff0, *thr0), _mm_cmpeq_epi16(qcoeff0, *thr0));
    const __m128i mask1   = _mm_or_si128(_mm_cmpgt_epi16(qcoeff1, *thr1), _mm_cmpeq_epi16(qcoeff1, *thr1));
    const int     nzflag  = _mm_movemask_epi8(mask0) | _mm_movemask_epi8(mask1);

    if (nzflag) {
        qcoeff0             = _mm_adds_epi16(qcoeff0, *round0);
        qcoeff1             = _mm_adds_epi16(qcoeff1, *round1);
        const __m128i qtmp0 = _mm_mulhi_epu16(qcoeff0, *quant0);
        const __m128i qtmp1 = _mm_mulhi_epu16(qcoeff1, *quant1);

        qcoeff0 = _mm_sign_epi16(qtmp0, coeff0);
        qcoeff1 = _mm_sign_epi16(qtmp1, coeff1);

        write_qcoeff(&qcoeff0, &qcoeff1, qcoeff_ptr, n_coeffs);

        qcoeff0 = _mm_srli_epi16(_mm_mullo_epi16(qtmp0, *dequant0), 1);
        qcoeff1 = _mm_srli_epi16(_mm_mullo_epi16(qtmp1, *dequant1), 1);
        coeff0  = _mm_sign_epi16(qcoeff0, coeff0);
        coeff1  = _mm_sign_epi16(qcoeff1, coeff1);

        write_qcoeff(&coeff0, &coeff1, dqcoeff_ptr, n_coeffs);

        const __m128i zero = _mm_setzero_si128();
        // Scan for eob
        const __m128i zero_coeff0  = _mm_cmpeq_epi16(coeff0, zero);
        const __m128i zero_coeff1  = _mm_cmpeq_epi16(coeff1, zero);
        const __m128i nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
        const __m128i nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
        const __m128i iscan0       = _mm_loadu_si128((const __m128i *)(iscan_ptr + n_coeffs));
        const __m128i iscan1       = _mm_loadu_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
        // Add one to convert from indices to counts
        const __m128i iscan0_nz = _mm_sub_epi16(iscan0, nzero_coeff0);
        const __m128i iscan1_nz = _mm_sub_epi16(iscan1, nzero_coeff1);
        const __m128i eob0      = _mm_and_si128(iscan0_nz, nzero_coeff0);
        const __m128i eob1      = _mm_and_si128(iscan1_nz, nzero_coeff1);
        const __m128i eob2      = _mm_max_epi16(eob0, eob1);
        *eob                    = _mm_max_epi16(*eob, eob2);
    } else {
        write_zero(qcoeff_ptr, n_coeffs);
        write_zero(dqcoeff_ptr, n_coeffs);
    }
}

void svt_av1_quantize_fp_32x32_sse4_1(const TranLow *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
                                      const int16_t *round_ptr, const int16_t *quant_ptr,
                                      const int16_t *quant_shift_ptr, TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr,
                                      const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan_ptr,
                                      const int16_t *iscan_ptr) {
    (void)scan_ptr;
    (void)zbin_ptr;
    (void)quant_shift_ptr;
    const int log_scale = 1;

    coeff_ptr += n_coeffs;
    iscan_ptr += n_coeffs;
    qcoeff_ptr += n_coeffs;
    dqcoeff_ptr += n_coeffs;
    n_coeffs = -n_coeffs;

    const __m128i rnd      = _mm_set1_epi16((int16_t)1 << (log_scale - 1));
    const __m128i round0   = _mm_srai_epi16(_mm_add_epi16(_mm_loadu_si128((const __m128i *)round_ptr), rnd), log_scale);
    const __m128i round1   = _mm_unpackhi_epi64(round0, round0);
    const __m128i quant0   = _mm_slli_epi16(_mm_loadu_si128((const __m128i *)quant_ptr), log_scale);
    const __m128i quant1   = _mm_unpackhi_epi64(quant0, quant0);
    const __m128i dequant0 = _mm_loadu_si128((const __m128i *)dequant_ptr);
    const __m128i dequant1 = _mm_unpackhi_epi64(dequant0, dequant0);
    __m128i       thr0     = _mm_srai_epi16(dequant0, 1 + log_scale);
    __m128i       thr1     = _mm_srai_epi16(dequant1, 1 + log_scale);
    __m128i       eob      = _mm_setzero_si128();

    quantize_32x32(iscan_ptr,
                   coeff_ptr,
                   n_coeffs,
                   qcoeff_ptr,
                   dqcoeff_ptr,
                   &round0,
                   &round1,
                   &quant0,
                   &quant1,
                   &dequant0,
                   &dequant1,
                   &thr0,
                   &thr1,
                   &eob);

    n_coeffs += 8 * 2;

    // AC only loop
    while (n_coeffs < 0) {
        quantize_32x32(iscan_ptr,
                       coeff_ptr,
                       n_coeffs,
                       qcoeff_ptr,
                       dqcoeff_ptr,
                       &round1,
                       &round1,
                       &quant1,
                       &quant1,
                       &dequant1,
                       &dequant1,
                       &thr1,
                       &thr1,
                       &eob);
        n_coeffs += 8 * 2;
    }

    // Accumulate EOB
    {
        __m128i eob_shuffled;
        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);
        *eob_ptr     = _mm_extract_epi16(eob, 1);
    }
}

static INLINE void quantize_64x64(const int16_t *iscan_ptr, const TranLow *coeff_ptr, intptr_t n_coeffs,
                                  TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr, const __m128i *round0,
                                  const __m128i *round1, const __m128i *quant0, const __m128i *quant1,
                                  const __m128i *dequant0, const __m128i *dequant1, const __m128i *thr0,
                                  const __m128i *thr1, __m128i *eob) {
    __m128i coeff0, coeff1;
    // Do DC and first 15 AC
    read_coeff(coeff_ptr, n_coeffs, &coeff0, &coeff1);

    __m128i       qcoeff0 = _mm_abs_epi16(coeff0);
    __m128i       qcoeff1 = _mm_abs_epi16(coeff1);
    const __m128i mask0   = _mm_or_si128(_mm_cmpgt_epi16(qcoeff0, *thr0), _mm_cmpeq_epi16(qcoeff0, *thr0));
    const __m128i mask1   = _mm_or_si128(_mm_cmpgt_epi16(qcoeff1, *thr1), _mm_cmpeq_epi16(qcoeff1, *thr1));
    const int     nzflag  = _mm_movemask_epi8(mask0) | _mm_movemask_epi8(mask1);

    if (nzflag) {
        qcoeff0              = _mm_adds_epi16(qcoeff0, *round0);
        qcoeff1              = _mm_adds_epi16(qcoeff1, *round1);
        __m128i       qtmp0h = _mm_slli_epi16(_mm_mulhi_epi16(qcoeff0, *quant0), 2);
        __m128i       qtmp1h = _mm_slli_epi16(_mm_mulhi_epi16(qcoeff1, *quant1), 2);
        const __m128i qtmp0l = _mm_srli_epi16(_mm_mullo_epi16(qcoeff0, *quant0), 14);
        const __m128i qtmp1l = _mm_srli_epi16(_mm_mullo_epi16(qcoeff1, *quant1), 14);

        qtmp0h  = _mm_or_si128(qtmp0h, qtmp0l);
        qtmp1h  = _mm_or_si128(qtmp1h, qtmp1l);
        qcoeff0 = _mm_sign_epi16(qtmp0h, coeff0);
        qcoeff1 = _mm_sign_epi16(qtmp1h, coeff1);

        write_qcoeff(&qcoeff0, &qcoeff1, qcoeff_ptr, n_coeffs);

        const __m128i dqtmp0h = _mm_slli_epi16(_mm_mulhi_epi16(qtmp0h, *dequant0), 14);
        const __m128i dqtmp1h = _mm_slli_epi16(_mm_mulhi_epi16(qtmp1h, *dequant1), 14);
        __m128i       dqtmp0l = _mm_srli_epi16(_mm_mullo_epi16(qtmp0h, *dequant0), 2);
        __m128i       dqtmp1l = _mm_srli_epi16(_mm_mullo_epi16(qtmp1h, *dequant1), 2);

        dqtmp0l = _mm_or_si128(dqtmp0h, dqtmp0l);
        dqtmp1l = _mm_or_si128(dqtmp1h, dqtmp1l);
        coeff0  = _mm_sign_epi16(dqtmp0l, coeff0);
        coeff1  = _mm_sign_epi16(dqtmp1l, coeff1);

        write_qcoeff(&coeff0, &coeff1, dqcoeff_ptr, n_coeffs);

        const __m128i zero = _mm_setzero_si128();
        // Scan for eob
        const __m128i zero_coeff0  = _mm_cmpeq_epi16(coeff0, zero);
        const __m128i zero_coeff1  = _mm_cmpeq_epi16(coeff1, zero);
        const __m128i nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
        const __m128i nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
        const __m128i iscan0       = _mm_loadu_si128((const __m128i *)(iscan_ptr + n_coeffs));
        const __m128i iscan1       = _mm_loadu_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
        // Add one to convert from indices to counts
        const __m128i iscan0_nz = _mm_sub_epi16(iscan0, nzero_coeff0);
        const __m128i iscan1_nz = _mm_sub_epi16(iscan1, nzero_coeff1);
        const __m128i eob0      = _mm_and_si128(iscan0_nz, nzero_coeff0);
        const __m128i eob1      = _mm_and_si128(iscan1_nz, nzero_coeff1);
        const __m128i eob2      = _mm_max_epi16(eob0, eob1);
        *eob                    = _mm_max_epi16(*eob, eob2);
    } else {
        write_zero(qcoeff_ptr, n_coeffs);
        write_zero(dqcoeff_ptr, n_coeffs);
    }
}

void svt_av1_quantize_fp_64x64_sse4_1(const TranLow *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
                                      const int16_t *round_ptr, const int16_t *quant_ptr,
                                      const int16_t *quant_shift_ptr, TranLow *qcoeff_ptr, TranLow *dqcoeff_ptr,
                                      const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan_ptr,
                                      const int16_t *iscan_ptr) {
    (void)scan_ptr;
    (void)zbin_ptr;
    (void)quant_shift_ptr;
    const int log_scale = 2;

    coeff_ptr += n_coeffs;
    iscan_ptr += n_coeffs;
    qcoeff_ptr += n_coeffs;
    dqcoeff_ptr += n_coeffs;
    n_coeffs = -n_coeffs;

    const __m128i rnd      = _mm_set1_epi16((int16_t)1 << (log_scale - 1));
    const __m128i round0   = _mm_srai_epi16(_mm_add_epi16(_mm_loadu_si128((const __m128i *)round_ptr), rnd), log_scale);
    const __m128i round1   = _mm_unpackhi_epi64(round0, round0);
    const __m128i quant0   = _mm_loadu_si128((const __m128i *)quant_ptr);
    const __m128i quant1   = _mm_unpackhi_epi64(quant0, quant0);
    const __m128i dequant0 = _mm_loadu_si128((const __m128i *)dequant_ptr);
    const __m128i dequant1 = _mm_unpackhi_epi64(dequant0, dequant0);
    __m128i       thr0     = _mm_srai_epi16(dequant0, 1 + log_scale);
    __m128i       thr1     = _mm_srai_epi16(dequant1, 1 + log_scale);
    __m128i       eob      = _mm_setzero_si128();

    quantize_64x64(iscan_ptr,
                   coeff_ptr,
                   n_coeffs,
                   qcoeff_ptr,
                   dqcoeff_ptr,
                   &round0,
                   &round1,
                   &quant0,
                   &quant1,
                   &dequant0,
                   &dequant1,
                   &thr0,
                   &thr1,
                   &eob);

    n_coeffs += 8 * 2;

    // AC only loop
    while (n_coeffs < 0) {
        quantize_64x64(iscan_ptr,
                       coeff_ptr,
                       n_coeffs,
                       qcoeff_ptr,
                       dqcoeff_ptr,
                       &round1,
                       &round1,
                       &quant1,
                       &quant1,
                       &dequant1,
                       &dequant1,
                       &thr1,
                       &thr1,
                       &eob);
        n_coeffs += 8 * 2;
    }

    // Accumulate EOB
    {
        __m128i eob_shuffled;
        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);
        *eob_ptr     = _mm_extract_epi16(eob, 1);
    }
}
