static WEBP_INLINE uint32_t Select(const uint32_t* const c0,
                                   const uint32_t* const c1,
                                   const uint32_t* const c2) {
  const uint8x8_t p0 = vreinterpret_u8_u64(vcreate_u64(*c0));
  const uint8x8_t p1 = vreinterpret_u8_u64(vcreate_u64(*c1));
  const uint8x8_t p2 = vreinterpret_u8_u64(vcreate_u64(*c2));
  const uint8x8_t bc = vabd_u8(p1, p2);   // |b-c|
  const uint8x8_t ac = vabd_u8(p0, p2);   // |a-c|
  const int16x4_t sum_bc = vreinterpret_s16_u16(vpaddl_u8(bc));
  const int16x4_t sum_ac = vreinterpret_s16_u16(vpaddl_u8(ac));
  const int32x2_t diff = vpaddl_s16(vsub_s16(sum_bc, sum_ac));
  const int32_t pa_minus_pb = vget_lane_s32(diff, 0);
  return (pa_minus_pb <= 0) ? *c0 : *c1;
}
static WEBP_INLINE uint32_t Select(const uint32_t* const c0,
                                   const uint32_t* const c1,
                                   const uint32_t* const c2) {
    const uint64x1_t C0 = { *c0, 0 }, C1 = { *c1, 0 }, C2 = { *c2, 0 };
    const uint8x8_t p0 = vreinterpret_u8_u64(C0);
    const uint8x8_t p1 = vreinterpret_u8_u64(C1);
    const uint8x8_t p2 = vreinterpret_u8_u64(C2);
    const uint8x8_t bc = vabd_u8(p1, p2);   // |b-c|
    const uint8x8_t ac = vabd_u8(p0, p2);   // |a-c|
    const int16x4_t sum_bc = vreinterpret_s16_u16(vpaddl_u8(bc));
    const int16x4_t sum_ac = vreinterpret_s16_u16(vpaddl_u8(ac));
    const int32x2_t diff = vpaddl_s16(vsub_s16(sum_bc, sum_ac));
    int32_t pa_minus_pb;
    vst1_lane_s32(&pa_minus_pb, diff, 0);
    return (pa_minus_pb <= 0) ? *c0 : *c1;
}
Exemple #3
0
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);
}
unsigned int vp8_variance_halfpixvar16x16_hv_neon(
        const unsigned char *src_ptr,
        int  source_stride,
        const unsigned char *ref_ptr,
        int  recon_stride,
        unsigned int *sse) {
    int i;
    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8;
    int16x4_t d0s16, d1s16, d2s16, d3s16, d10s16, d11s16, d12s16, d13s16;
    int16x4_t d18s16, d19s16, d20s16, d21s16, d22s16, d23s16, d24s16, d25s16;
    uint32x2_t d0u32, d10u32;
    int64x1_t d0s64, d1s64, d2s64, d3s64;
    uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8;
    uint16x8_t q0u16, q1u16, q5u16, q6u16, q9u16, q10u16, q11u16, q12u16;
    int32x4_t q13s32, q14s32, q15s32;
    int64x2_t q0s64, q1s64, q5s64;

    q13s32 = vdupq_n_s32(0);
    q14s32 = vdupq_n_s32(0);
    q15s32 = vdupq_n_s32(0);

    q0u8 = vld1q_u8(src_ptr);
    q1u8 = vld1q_u8(src_ptr + 16);
    src_ptr += source_stride;
    q1u8 = vextq_u8(q0u8, q1u8, 1);
    q0u8 = vrhaddq_u8(q0u8, q1u8);
    for (i = 0; i < 4; i++) {  // vp8_filt_fpo16x16s_4_0_loop_neon
        q2u8 = vld1q_u8(src_ptr);
        q3u8 = vld1q_u8(src_ptr + 16);
        src_ptr += source_stride;
        q4u8 = vld1q_u8(src_ptr);
        q5u8 = vld1q_u8(src_ptr + 16);
        src_ptr += source_stride;
        q6u8 = vld1q_u8(src_ptr);
        q7u8 = vld1q_u8(src_ptr + 16);
        src_ptr += source_stride;
        q8u8 = vld1q_u8(src_ptr);
        q9u8 = vld1q_u8(src_ptr + 16);
        src_ptr += source_stride;

        q3u8 = vextq_u8(q2u8, q3u8, 1);
        q5u8 = vextq_u8(q4u8, q5u8, 1);
        q7u8 = vextq_u8(q6u8, q7u8, 1);
        q9u8 = vextq_u8(q8u8, q9u8, 1);

        q1u8 = vrhaddq_u8(q2u8, q3u8);
        q2u8 = vrhaddq_u8(q4u8, q5u8);
        q3u8 = vrhaddq_u8(q6u8, q7u8);
        q4u8 = vrhaddq_u8(q8u8, q9u8);
        q0u8 = vrhaddq_u8(q0u8, q1u8);
        q1u8 = vrhaddq_u8(q1u8, q2u8);
        q2u8 = vrhaddq_u8(q2u8, q3u8);
        q3u8 = vrhaddq_u8(q3u8, q4u8);

        q5u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;
        q6u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;
        q7u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;
        q8u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;

        d0u8 = vget_low_u8(q0u8);
        d1u8 = vget_high_u8(q0u8);
        d2u8 = vget_low_u8(q1u8);
        d3u8 = vget_high_u8(q1u8);
        d4u8 = vget_low_u8(q2u8);
        d5u8 = vget_high_u8(q2u8);
        d6u8 = vget_low_u8(q3u8);
        d7u8 = vget_high_u8(q3u8);

        q9u16  = vsubl_u8(d0u8, vget_low_u8(q5u8));
        q10u16 = vsubl_u8(d1u8, vget_high_u8(q5u8));
        q11u16 = vsubl_u8(d2u8, vget_low_u8(q6u8));
        q12u16 = vsubl_u8(d3u8, vget_high_u8(q6u8));
        q0u16  = vsubl_u8(d4u8, vget_low_u8(q7u8));
        q1u16  = vsubl_u8(d5u8, vget_high_u8(q7u8));
        q5u16  = vsubl_u8(d6u8, vget_low_u8(q8u8));
        q6u16  = vsubl_u8(d7u8, vget_high_u8(q8u8));

        d18s16 = vreinterpret_s16_u16(vget_low_u16(q9u16));
        d19s16 = vreinterpret_s16_u16(vget_high_u16(q9u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q9u16));
        q14s32 = vmlal_s16(q14s32, d18s16, d18s16);
        q15s32 = vmlal_s16(q15s32, d19s16, d19s16);

        d20s16 = vreinterpret_s16_u16(vget_low_u16(q10u16));
        d21s16 = vreinterpret_s16_u16(vget_high_u16(q10u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q10u16));
        q14s32 = vmlal_s16(q14s32, d20s16, d20s16);
        q15s32 = vmlal_s16(q15s32, d21s16, d21s16);

        d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
        d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q11u16));
        q14s32 = vmlal_s16(q14s32, d22s16, d22s16);
        q15s32 = vmlal_s16(q15s32, d23s16, d23s16);

        d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
        d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q12u16));
        q14s32 = vmlal_s16(q14s32, d24s16, d24s16);
        q15s32 = vmlal_s16(q15s32, d25s16, d25s16);

        d0s16 = vreinterpret_s16_u16(vget_low_u16(q0u16));
        d1s16 = vreinterpret_s16_u16(vget_high_u16(q0u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q0u16));
        q14s32 = vmlal_s16(q14s32, d0s16, d0s16);
        q15s32 = vmlal_s16(q15s32, d1s16, d1s16);

        d2s16 = vreinterpret_s16_u16(vget_low_u16(q1u16));
        d3s16 = vreinterpret_s16_u16(vget_high_u16(q1u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q1u16));
        q14s32 = vmlal_s16(q14s32, d2s16, d2s16);
        q15s32 = vmlal_s16(q15s32, d3s16, d3s16);

        d10s16 = vreinterpret_s16_u16(vget_low_u16(q5u16));
        d11s16 = vreinterpret_s16_u16(vget_high_u16(q5u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q5u16));
        q14s32 = vmlal_s16(q14s32, d10s16, d10s16);
        q15s32 = vmlal_s16(q15s32, d11s16, d11s16);

        d12s16 = vreinterpret_s16_u16(vget_low_u16(q6u16));
        d13s16 = vreinterpret_s16_u16(vget_high_u16(q6u16));
        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q6u16));
        q14s32 = vmlal_s16(q14s32, d12s16, d12s16);
        q15s32 = vmlal_s16(q15s32, d13s16, d13s16);

        q0u8 = q4u8;
    }

    q15s32 = vaddq_s32(q14s32, q15s32);
    q0s64 = vpaddlq_s32(q13s32);
    q1s64 = vpaddlq_s32(q15s32);

    d0s64 = vget_low_s64(q0s64);
    d1s64 = vget_high_s64(q0s64);
    d2s64 = vget_low_s64(q1s64);
    d3s64 = vget_high_s64(q1s64);
    d0s64 = vadd_s64(d0s64, d1s64);
    d1s64 = vadd_s64(d2s64, d3s64);

    q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64),
                      vreinterpret_s32_s64(d0s64));
    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0);

    d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8);
    d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32);

    return vget_lane_u32(d0u32, 0);
}
void vp8_short_fdct4x4_neon(
        int16_t *input,
        int16_t *output,
        int pitch) {
    int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16;
    int16x4_t d16s16, d17s16, d26s16, dEmptys16;
    uint16x4_t d4u16;
    int16x8_t q0s16, q1s16;
    int32x4_t q9s32, q10s32, q11s32, q12s32;
    int16x4x2_t v2tmp0, v2tmp1;
    int32x2x2_t v2tmp2, v2tmp3;

    d16s16 = vdup_n_s16(5352);
    d17s16 = vdup_n_s16(2217);
    q9s32 = vdupq_n_s32(14500);
    q10s32 = vdupq_n_s32(7500);
    q11s32 = vdupq_n_s32(12000);
    q12s32 = vdupq_n_s32(51000);

    // Part one
    pitch >>= 1;
    d0s16 = vld1_s16(input);
    input += pitch;
    d1s16 = vld1_s16(input);
    input += pitch;
    d2s16 = vld1_s16(input);
    input += pitch;
    d3s16 = vld1_s16(input);

    v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16),
                      vreinterpret_s32_s16(d2s16));
    v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16),
                      vreinterpret_s32_s16(d3s16));
    v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]),   // d0
                      vreinterpret_s16_s32(v2tmp3.val[0]));  // d1
    v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]),   // d2
                      vreinterpret_s16_s32(v2tmp3.val[1]));  // d3

    d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]);
    d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]);
    d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]);
    d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]);

    d4s16 = vshl_n_s16(d4s16, 3);
    d5s16 = vshl_n_s16(d5s16, 3);
    d6s16 = vshl_n_s16(d6s16, 3);
    d7s16 = vshl_n_s16(d7s16, 3);

    d0s16 = vadd_s16(d4s16, d5s16);
    d2s16 = vsub_s16(d4s16, d5s16);

    q9s32 = vmlal_s16(q9s32, d7s16, d16s16);
    q10s32 = vmlal_s16(q10s32, d7s16, d17s16);
    q9s32 = vmlal_s16(q9s32, d6s16, d17s16);
    q10s32 = vmlsl_s16(q10s32, d6s16, d16s16);

    d1s16 = vshrn_n_s32(q9s32, 12);
    d3s16 = vshrn_n_s32(q10s32, 12);

    // Part two
    v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16),
                      vreinterpret_s32_s16(d2s16));
    v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16),
                      vreinterpret_s32_s16(d3s16));
    v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]),   // d0
                      vreinterpret_s16_s32(v2tmp3.val[0]));  // d1
    v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]),   // d2
                      vreinterpret_s16_s32(v2tmp3.val[1]));  // d3

    d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]);
    d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]);
    d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]);
    d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]);

    d26s16 = vdup_n_s16(7);
    d4s16 = vadd_s16(d4s16, d26s16);

    d0s16 = vadd_s16(d4s16, d5s16);
    d2s16 = vsub_s16(d4s16, d5s16);

    q11s32 = vmlal_s16(q11s32, d7s16, d16s16);
    q12s32 = vmlal_s16(q12s32, d7s16, d17s16);

    dEmptys16 = vdup_n_s16(0);
    d4u16 = vceq_s16(d7s16, dEmptys16);

    d0s16 = vshr_n_s16(d0s16, 4);
    d2s16 = vshr_n_s16(d2s16, 4);

    q11s32 = vmlal_s16(q11s32, d6s16, d17s16);
    q12s32 = vmlsl_s16(q12s32, d6s16, d16s16);

    d4u16 = vmvn_u16(d4u16);
    d1s16 = vshrn_n_s32(q11s32, 16);
    d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d4u16));
    d3s16 = vshrn_n_s32(q12s32, 16);

    q0s16 = vcombine_s16(d0s16, d1s16);
    q1s16 = vcombine_s16(d2s16, d3s16);

    vst1q_s16(output, q0s16);
    vst1q_s16(output + 8, q1s16);
    return;
}
unsigned int vp8_sub_pixel_variance16x16_neon_func(
        const unsigned char *src_ptr,
        int src_pixels_per_line,
        int xoffset,
        int yoffset,
        const unsigned char *dst_ptr,
        int dst_pixels_per_line,
        unsigned int *sse) {
    int i;
    DECLARE_ALIGNED_ARRAY(16, unsigned char, tmp, 528);
    unsigned char *tmpp;
    unsigned char *tmpp2;
    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
    uint8x8_t d10u8, d11u8, d12u8, d13u8, d14u8, d15u8, d16u8, d17u8, d18u8;
    uint8x8_t d19u8, d20u8, d21u8;
    int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16;
    uint32x2_t d0u32, d10u32;
    int64x1_t d0s64, d1s64, d2s64, d3s64;
    uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8;
    uint8x16_t q10u8, q11u8, q12u8, q13u8, q14u8, q15u8;
    uint16x8_t q1u16, q2u16, q3u16, q4u16, q5u16, q6u16, q7u16, q8u16;
    uint16x8_t q9u16, q10u16, q11u16, q12u16, q13u16, q14u16;
    int32x4_t q8s32, q9s32, q10s32;
    int64x2_t q0s64, q1s64, q5s64;

    tmpp2 = tmp + 272;
    tmpp = tmp;
    if (xoffset == 0) {  // secondpass_bfilter16x16_only
        d0u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][0]);
        d1u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][1]);

        q11u8 = vld1q_u8(src_ptr);
        src_ptr += src_pixels_per_line;
        for (i = 4; i > 0; i--) {
            q12u8 = vld1q_u8(src_ptr);
            src_ptr += src_pixels_per_line;
            q13u8 = vld1q_u8(src_ptr);
            src_ptr += src_pixels_per_line;
            q14u8 = vld1q_u8(src_ptr);
            src_ptr += src_pixels_per_line;
            q15u8 = vld1q_u8(src_ptr);
            src_ptr += src_pixels_per_line;

            __builtin_prefetch(src_ptr);
            __builtin_prefetch(src_ptr + src_pixels_per_line);
            __builtin_prefetch(src_ptr + src_pixels_per_line * 2);

            q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8);
            q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8);
            q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8);
            q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8);
            q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8);
            q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8);
            q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8);
            q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8);

            q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8);
            q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8);
            q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8);
            q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8);
            q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8);
            q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8);
            q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8);
            q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8);

            d2u8 = vqrshrn_n_u16(q1u16, 7);
            d3u8 = vqrshrn_n_u16(q2u16, 7);
            d4u8 = vqrshrn_n_u16(q3u16, 7);
            d5u8 = vqrshrn_n_u16(q4u16, 7);
            d6u8 = vqrshrn_n_u16(q5u16, 7);
            d7u8 = vqrshrn_n_u16(q6u16, 7);
            d8u8 = vqrshrn_n_u16(q7u16, 7);
            d9u8 = vqrshrn_n_u16(q8u16, 7);

            q1u8 = vcombine_u8(d2u8, d3u8);
            q2u8 = vcombine_u8(d4u8, d5u8);
            q3u8 = vcombine_u8(d6u8, d7u8);
            q4u8 = vcombine_u8(d8u8, d9u8);

            q11u8 = q15u8;

            vst1q_u8((uint8_t *)tmpp2, q1u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q2u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q3u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q4u8);
            tmpp2 += 16;
        }
    } else if (yoffset == 0) {  // firstpass_bfilter16x16_only
        d0u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][0]);
        d1u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][1]);

        for (i = 4; i > 0 ; i--) {
            d2u8 = vld1_u8(src_ptr);
            d3u8 = vld1_u8(src_ptr + 8);
            d4u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;
            d5u8 = vld1_u8(src_ptr);
            d6u8 = vld1_u8(src_ptr + 8);
            d7u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;
            d8u8 = vld1_u8(src_ptr);
            d9u8 = vld1_u8(src_ptr + 8);
            d10u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;
            d11u8 = vld1_u8(src_ptr);
            d12u8 = vld1_u8(src_ptr + 8);
            d13u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;

            __builtin_prefetch(src_ptr);
            __builtin_prefetch(src_ptr + src_pixels_per_line);
            __builtin_prefetch(src_ptr + src_pixels_per_line * 2);

            q7u16  = vmull_u8(d2u8, d0u8);
            q8u16  = vmull_u8(d3u8, d0u8);
            q9u16  = vmull_u8(d5u8, d0u8);
            q10u16 = vmull_u8(d6u8, d0u8);
            q11u16 = vmull_u8(d8u8, d0u8);
            q12u16 = vmull_u8(d9u8, d0u8);
            q13u16 = vmull_u8(d11u8, d0u8);
            q14u16 = vmull_u8(d12u8, d0u8);

            d2u8  = vext_u8(d2u8, d3u8, 1);
            d5u8  = vext_u8(d5u8, d6u8, 1);
            d8u8  = vext_u8(d8u8, d9u8, 1);
            d11u8 = vext_u8(d11u8, d12u8, 1);

            q7u16  = vmlal_u8(q7u16, d2u8, d1u8);
            q9u16  = vmlal_u8(q9u16, d5u8, d1u8);
            q11u16 = vmlal_u8(q11u16, d8u8, d1u8);
            q13u16 = vmlal_u8(q13u16, d11u8, d1u8);

            d3u8  = vext_u8(d3u8, d4u8, 1);
            d6u8  = vext_u8(d6u8, d7u8, 1);
            d9u8  = vext_u8(d9u8, d10u8, 1);
            d12u8 = vext_u8(d12u8, d13u8, 1);

            q8u16  = vmlal_u8(q8u16,  d3u8, d1u8);
            q10u16 = vmlal_u8(q10u16, d6u8, d1u8);
            q12u16 = vmlal_u8(q12u16, d9u8, d1u8);
            q14u16 = vmlal_u8(q14u16, d12u8, d1u8);

            d14u8 = vqrshrn_n_u16(q7u16, 7);
            d15u8 = vqrshrn_n_u16(q8u16, 7);
            d16u8 = vqrshrn_n_u16(q9u16, 7);
            d17u8 = vqrshrn_n_u16(q10u16, 7);
            d18u8 = vqrshrn_n_u16(q11u16, 7);
            d19u8 = vqrshrn_n_u16(q12u16, 7);
            d20u8 = vqrshrn_n_u16(q13u16, 7);
            d21u8 = vqrshrn_n_u16(q14u16, 7);

            q7u8  = vcombine_u8(d14u8, d15u8);
            q8u8  = vcombine_u8(d16u8, d17u8);
            q9u8  = vcombine_u8(d18u8, d19u8);
            q10u8 = vcombine_u8(d20u8, d21u8);

            vst1q_u8((uint8_t *)tmpp2, q7u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q8u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q9u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q10u8);
            tmpp2 += 16;
        }
    } else {
        d0u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][0]);
        d1u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][1]);

        d2u8 = vld1_u8(src_ptr);
        d3u8 = vld1_u8(src_ptr + 8);
        d4u8 = vld1_u8(src_ptr + 16);
        src_ptr += src_pixels_per_line;
        d5u8 = vld1_u8(src_ptr);
        d6u8 = vld1_u8(src_ptr + 8);
        d7u8 = vld1_u8(src_ptr + 16);
        src_ptr += src_pixels_per_line;
        d8u8 = vld1_u8(src_ptr);
        d9u8 = vld1_u8(src_ptr + 8);
        d10u8 = vld1_u8(src_ptr + 16);
        src_ptr += src_pixels_per_line;
        d11u8 = vld1_u8(src_ptr);
        d12u8 = vld1_u8(src_ptr + 8);
        d13u8 = vld1_u8(src_ptr + 16);
        src_ptr += src_pixels_per_line;

        // First Pass: output_height lines x output_width columns (17x16)
        for (i = 3; i > 0; i--) {
            q7u16  = vmull_u8(d2u8, d0u8);
            q8u16  = vmull_u8(d3u8, d0u8);
            q9u16  = vmull_u8(d5u8, d0u8);
            q10u16 = vmull_u8(d6u8, d0u8);
            q11u16 = vmull_u8(d8u8, d0u8);
            q12u16 = vmull_u8(d9u8, d0u8);
            q13u16 = vmull_u8(d11u8, d0u8);
            q14u16 = vmull_u8(d12u8, d0u8);

            d2u8  = vext_u8(d2u8, d3u8, 1);
            d5u8  = vext_u8(d5u8, d6u8, 1);
            d8u8  = vext_u8(d8u8, d9u8, 1);
            d11u8 = vext_u8(d11u8, d12u8, 1);

            q7u16  = vmlal_u8(q7u16, d2u8, d1u8);
            q9u16  = vmlal_u8(q9u16, d5u8, d1u8);
            q11u16 = vmlal_u8(q11u16, d8u8, d1u8);
            q13u16 = vmlal_u8(q13u16, d11u8, d1u8);

            d3u8  = vext_u8(d3u8, d4u8, 1);
            d6u8  = vext_u8(d6u8, d7u8, 1);
            d9u8  = vext_u8(d9u8, d10u8, 1);
            d12u8 = vext_u8(d12u8, d13u8, 1);

            q8u16  = vmlal_u8(q8u16,  d3u8, d1u8);
            q10u16 = vmlal_u8(q10u16, d6u8, d1u8);
            q12u16 = vmlal_u8(q12u16, d9u8, d1u8);
            q14u16 = vmlal_u8(q14u16, d12u8, d1u8);

            d14u8 = vqrshrn_n_u16(q7u16, 7);
            d15u8 = vqrshrn_n_u16(q8u16, 7);
            d16u8 = vqrshrn_n_u16(q9u16, 7);
            d17u8 = vqrshrn_n_u16(q10u16, 7);
            d18u8 = vqrshrn_n_u16(q11u16, 7);
            d19u8 = vqrshrn_n_u16(q12u16, 7);
            d20u8 = vqrshrn_n_u16(q13u16, 7);
            d21u8 = vqrshrn_n_u16(q14u16, 7);

            d2u8 = vld1_u8(src_ptr);
            d3u8 = vld1_u8(src_ptr + 8);
            d4u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;
            d5u8 = vld1_u8(src_ptr);
            d6u8 = vld1_u8(src_ptr + 8);
            d7u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;
            d8u8 = vld1_u8(src_ptr);
            d9u8 = vld1_u8(src_ptr + 8);
            d10u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;
            d11u8 = vld1_u8(src_ptr);
            d12u8 = vld1_u8(src_ptr + 8);
            d13u8 = vld1_u8(src_ptr + 16);
            src_ptr += src_pixels_per_line;

            q7u8 = vcombine_u8(d14u8, d15u8);
            q8u8 = vcombine_u8(d16u8, d17u8);
            q9u8 = vcombine_u8(d18u8, d19u8);
            q10u8 = vcombine_u8(d20u8, d21u8);

            vst1q_u8((uint8_t *)tmpp, q7u8);
            tmpp += 16;
            vst1q_u8((uint8_t *)tmpp, q8u8);
            tmpp += 16;
            vst1q_u8((uint8_t *)tmpp, q9u8);
            tmpp += 16;
            vst1q_u8((uint8_t *)tmpp, q10u8);
            tmpp += 16;
        }

        // First-pass filtering for rest 5 lines
        d14u8 = vld1_u8(src_ptr);
        d15u8 = vld1_u8(src_ptr + 8);
        d16u8 = vld1_u8(src_ptr + 16);
        src_ptr += src_pixels_per_line;

        q9u16  = vmull_u8(d2u8, d0u8);
        q10u16 = vmull_u8(d3u8, d0u8);
        q11u16 = vmull_u8(d5u8, d0u8);
        q12u16 = vmull_u8(d6u8, d0u8);
        q13u16 = vmull_u8(d8u8, d0u8);
        q14u16 = vmull_u8(d9u8, d0u8);

        d2u8  = vext_u8(d2u8, d3u8, 1);
        d5u8  = vext_u8(d5u8, d6u8, 1);
        d8u8  = vext_u8(d8u8, d9u8, 1);

        q9u16  = vmlal_u8(q9u16, d2u8, d1u8);
        q11u16 = vmlal_u8(q11u16, d5u8, d1u8);
        q13u16 = vmlal_u8(q13u16, d8u8, d1u8);

        d3u8  = vext_u8(d3u8, d4u8, 1);
        d6u8  = vext_u8(d6u8, d7u8, 1);
        d9u8  = vext_u8(d9u8, d10u8, 1);

        q10u16 = vmlal_u8(q10u16, d3u8, d1u8);
        q12u16 = vmlal_u8(q12u16, d6u8, d1u8);
        q14u16 = vmlal_u8(q14u16, d9u8, d1u8);

        q1u16 = vmull_u8(d11u8, d0u8);
        q2u16 = vmull_u8(d12u8, d0u8);
        q3u16 = vmull_u8(d14u8, d0u8);
        q4u16 = vmull_u8(d15u8, d0u8);

        d11u8 = vext_u8(d11u8, d12u8, 1);
        d14u8 = vext_u8(d14u8, d15u8, 1);

        q1u16 = vmlal_u8(q1u16, d11u8, d1u8);
        q3u16 = vmlal_u8(q3u16, d14u8, d1u8);

        d12u8 = vext_u8(d12u8, d13u8, 1);
        d15u8 = vext_u8(d15u8, d16u8, 1);

        q2u16 = vmlal_u8(q2u16, d12u8, d1u8);
        q4u16 = vmlal_u8(q4u16, d15u8, d1u8);

        d10u8 = vqrshrn_n_u16(q9u16, 7);
        d11u8 = vqrshrn_n_u16(q10u16, 7);
        d12u8 = vqrshrn_n_u16(q11u16, 7);
        d13u8 = vqrshrn_n_u16(q12u16, 7);
        d14u8 = vqrshrn_n_u16(q13u16, 7);
        d15u8 = vqrshrn_n_u16(q14u16, 7);
        d16u8 = vqrshrn_n_u16(q1u16, 7);
        d17u8 = vqrshrn_n_u16(q2u16, 7);
        d18u8 = vqrshrn_n_u16(q3u16, 7);
        d19u8 = vqrshrn_n_u16(q4u16, 7);

        q5u8 = vcombine_u8(d10u8, d11u8);
        q6u8 = vcombine_u8(d12u8, d13u8);
        q7u8 = vcombine_u8(d14u8, d15u8);
        q8u8 = vcombine_u8(d16u8, d17u8);
        q9u8 = vcombine_u8(d18u8, d19u8);

        vst1q_u8((uint8_t *)tmpp, q5u8);
        tmpp += 16;
        vst1q_u8((uint8_t *)tmpp, q6u8);
        tmpp += 16;
        vst1q_u8((uint8_t *)tmpp, q7u8);
        tmpp += 16;
        vst1q_u8((uint8_t *)tmpp, q8u8);
        tmpp += 16;
        vst1q_u8((uint8_t *)tmpp, q9u8);

        // secondpass_filter
        d0u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][0]);
        d1u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][1]);

        tmpp = tmp;
        tmpp2 = tmpp + 272;
        q11u8 = vld1q_u8(tmpp);
        tmpp += 16;
        for (i = 4; i > 0; i--) {
            q12u8 = vld1q_u8(tmpp);
            tmpp += 16;
            q13u8 = vld1q_u8(tmpp);
            tmpp += 16;
            q14u8 = vld1q_u8(tmpp);
            tmpp += 16;
            q15u8 = vld1q_u8(tmpp);
            tmpp += 16;

            q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8);
            q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8);
            q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8);
            q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8);
            q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8);
            q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8);
            q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8);
            q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8);

            q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8);
            q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8);
            q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8);
            q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8);
            q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8);
            q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8);
            q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8);
            q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8);

            d2u8 = vqrshrn_n_u16(q1u16, 7);
            d3u8 = vqrshrn_n_u16(q2u16, 7);
            d4u8 = vqrshrn_n_u16(q3u16, 7);
            d5u8 = vqrshrn_n_u16(q4u16, 7);
            d6u8 = vqrshrn_n_u16(q5u16, 7);
            d7u8 = vqrshrn_n_u16(q6u16, 7);
            d8u8 = vqrshrn_n_u16(q7u16, 7);
            d9u8 = vqrshrn_n_u16(q8u16, 7);

            q1u8 = vcombine_u8(d2u8, d3u8);
            q2u8 = vcombine_u8(d4u8, d5u8);
            q3u8 = vcombine_u8(d6u8, d7u8);
            q4u8 = vcombine_u8(d8u8, d9u8);

            q11u8 = q15u8;

            vst1q_u8((uint8_t *)tmpp2, q1u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q2u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q3u8);
            tmpp2 += 16;
            vst1q_u8((uint8_t *)tmpp2, q4u8);
            tmpp2 += 16;
        }
    }

    // sub_pixel_variance16x16_neon
    q8s32 = vdupq_n_s32(0);
    q9s32 = vdupq_n_s32(0);
    q10s32 = vdupq_n_s32(0);

    tmpp = tmp + 272;
    for (i = 0; i < 8; i++) {  // sub_pixel_variance16x16_neon_loop
        q0u8 = vld1q_u8(tmpp);
        tmpp += 16;
        q1u8 = vld1q_u8(tmpp);
        tmpp += 16;
        q2u8 = vld1q_u8(dst_ptr);
        dst_ptr += dst_pixels_per_line;
        q3u8 = vld1q_u8(dst_ptr);
        dst_ptr += dst_pixels_per_line;

        d0u8 = vget_low_u8(q0u8);
        d1u8 = vget_high_u8(q0u8);
        d2u8 = vget_low_u8(q1u8);
        d3u8 = vget_high_u8(q1u8);

        q11u16 = vsubl_u8(d0u8, vget_low_u8(q2u8));
        q12u16 = vsubl_u8(d1u8, vget_high_u8(q2u8));
        q13u16 = vsubl_u8(d2u8, vget_low_u8(q3u8));
        q14u16 = vsubl_u8(d3u8, vget_high_u8(q3u8));

        d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
        d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16));
        q9s32 = vmlal_s16(q9s32, d22s16, d22s16);
        q10s32 = vmlal_s16(q10s32, d23s16, d23s16);

        d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
        d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16));
        q9s32 = vmlal_s16(q9s32, d24s16, d24s16);
        q10s32 = vmlal_s16(q10s32, d25s16, d25s16);

        d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16));
        d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16));
        q9s32 = vmlal_s16(q9s32, d26s16, d26s16);
        q10s32 = vmlal_s16(q10s32, d27s16, d27s16);

        d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16));
        d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16));
        q9s32 = vmlal_s16(q9s32, d28s16, d28s16);
        q10s32 = vmlal_s16(q10s32, d29s16, d29s16);
    }

    q10s32 = vaddq_s32(q10s32, q9s32);
    q0s64 = vpaddlq_s32(q8s32);
    q1s64 = vpaddlq_s32(q10s32);

    d0s64 = vget_low_s64(q0s64);
    d1s64 = vget_high_s64(q0s64);
    d2s64 = vget_low_s64(q1s64);
    d3s64 = vget_high_s64(q1s64);
    d0s64 = vadd_s64(d0s64, d1s64);
    d1s64 = vadd_s64(d2s64, d3s64);

    q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64),
                      vreinterpret_s32_s64(d0s64));
    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0);

    d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8);
    d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32);

    return vget_lane_u32(d0u32, 0);
}
void vp8_short_fdct8x4_neon(
        int16_t *input,
        int16_t *output,
        int pitch) {
    int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16;
    int16x4_t d16s16, d17s16, d26s16, d27s16, d28s16, d29s16;
    uint16x4_t d28u16, d29u16;
    uint16x8_t q14u16;
    int16x8_t q0s16, q1s16, q2s16, q3s16;
    int16x8_t q11s16, q12s16, q13s16, q14s16, q15s16, qEmptys16;
    int32x4_t q9s32, q10s32, q11s32, q12s32;
    int16x8x2_t v2tmp0, v2tmp1;
    int32x4x2_t v2tmp2, v2tmp3;

    d16s16 = vdup_n_s16(5352);
    d17s16 = vdup_n_s16(2217);
    q9s32 = vdupq_n_s32(14500);
    q10s32 = vdupq_n_s32(7500);

    // Part one
    pitch >>= 1;
    q0s16 = vld1q_s16(input);
    input += pitch;
    q1s16 = vld1q_s16(input);
    input += pitch;
    q2s16 = vld1q_s16(input);
    input += pitch;
    q3s16 = vld1q_s16(input);

    v2tmp2 = vtrnq_s32(vreinterpretq_s32_s16(q0s16),
                       vreinterpretq_s32_s16(q2s16));
    v2tmp3 = vtrnq_s32(vreinterpretq_s32_s16(q1s16),
                       vreinterpretq_s32_s16(q3s16));
    v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]),   // q0
                       vreinterpretq_s16_s32(v2tmp3.val[0]));  // q1
    v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]),   // q2
                       vreinterpretq_s16_s32(v2tmp3.val[1]));  // q3

    q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]);
    q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]);
    q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]);
    q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]);

    q11s16 = vshlq_n_s16(q11s16, 3);
    q12s16 = vshlq_n_s16(q12s16, 3);
    q13s16 = vshlq_n_s16(q13s16, 3);
    q14s16 = vshlq_n_s16(q14s16, 3);

    q0s16 = vaddq_s16(q11s16, q12s16);
    q2s16 = vsubq_s16(q11s16, q12s16);

    q11s32 = q9s32;
    q12s32 = q10s32;

    d26s16 = vget_low_s16(q13s16);
    d27s16 = vget_high_s16(q13s16);
    d28s16 = vget_low_s16(q14s16);
    d29s16 = vget_high_s16(q14s16);

    q9s32 = vmlal_s16(q9s32, d28s16, d16s16);
    q10s32 = vmlal_s16(q10s32, d28s16, d17s16);
    q11s32 = vmlal_s16(q11s32, d29s16, d16s16);
    q12s32 = vmlal_s16(q12s32, d29s16, d17s16);

    q9s32 = vmlal_s16(q9s32, d26s16, d17s16);
    q10s32 = vmlsl_s16(q10s32, d26s16, d16s16);
    q11s32 = vmlal_s16(q11s32, d27s16, d17s16);
    q12s32 = vmlsl_s16(q12s32, d27s16, d16s16);

    d2s16 = vshrn_n_s32(q9s32, 12);
    d6s16 = vshrn_n_s32(q10s32, 12);
    d3s16 = vshrn_n_s32(q11s32, 12);
    d7s16 = vshrn_n_s32(q12s32, 12);
    q1s16 = vcombine_s16(d2s16, d3s16);
    q3s16 = vcombine_s16(d6s16, d7s16);

    // Part two
    q9s32 = vdupq_n_s32(12000);
    q10s32 = vdupq_n_s32(51000);

    v2tmp2 = vtrnq_s32(vreinterpretq_s32_s16(q0s16),
                       vreinterpretq_s32_s16(q2s16));
    v2tmp3 = vtrnq_s32(vreinterpretq_s32_s16(q1s16),
                       vreinterpretq_s32_s16(q3s16));
    v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]),   // q0
                       vreinterpretq_s16_s32(v2tmp3.val[0]));  // q1
    v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]),   // q2
                       vreinterpretq_s16_s32(v2tmp3.val[1]));  // q3

    q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]);
    q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]);
    q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]);
    q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]);

    q15s16 = vdupq_n_s16(7);
    q11s16 = vaddq_s16(q11s16, q15s16);
    q0s16 = vaddq_s16(q11s16, q12s16);
    q1s16 = vsubq_s16(q11s16, q12s16);

    q11s32 = q9s32;
    q12s32 = q10s32;

    d0s16 = vget_low_s16(q0s16);
    d1s16 = vget_high_s16(q0s16);
    d2s16 = vget_low_s16(q1s16);
    d3s16 = vget_high_s16(q1s16);

    d0s16 = vshr_n_s16(d0s16, 4);
    d4s16 = vshr_n_s16(d1s16, 4);
    d2s16 = vshr_n_s16(d2s16, 4);
    d6s16 = vshr_n_s16(d3s16, 4);

    d26s16 = vget_low_s16(q13s16);
    d27s16 = vget_high_s16(q13s16);
    d28s16 = vget_low_s16(q14s16);
    d29s16 = vget_high_s16(q14s16);

    q9s32 = vmlal_s16(q9s32, d28s16, d16s16);
    q10s32 = vmlal_s16(q10s32, d28s16, d17s16);
    q11s32 = vmlal_s16(q11s32, d29s16, d16s16);
    q12s32 = vmlal_s16(q12s32, d29s16, d17s16);

    q9s32 = vmlal_s16(q9s32, d26s16, d17s16);
    q10s32 = vmlsl_s16(q10s32, d26s16, d16s16);
    q11s32 = vmlal_s16(q11s32, d27s16, d17s16);
    q12s32 = vmlsl_s16(q12s32, d27s16, d16s16);

    d1s16 = vshrn_n_s32(q9s32, 16);
    d3s16 = vshrn_n_s32(q10s32, 16);
    d5s16 = vshrn_n_s32(q11s32, 16);
    d7s16 = vshrn_n_s32(q12s32, 16);

    qEmptys16 = vdupq_n_s16(0);
    q14u16 = vceqq_s16(q14s16, qEmptys16);
    q14u16 = vmvnq_u16(q14u16);

    d28u16 = vget_low_u16(q14u16);
    d29u16 = vget_high_u16(q14u16);
    d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d28u16));
    d5s16 = vsub_s16(d5s16, vreinterpret_s16_u16(d29u16));

    q0s16 = vcombine_s16(d0s16, d1s16);
    q1s16 = vcombine_s16(d2s16, d3s16);
    q2s16 = vcombine_s16(d4s16, d5s16);
    q3s16 = vcombine_s16(d6s16, d7s16);

    vst1q_s16(output, q0s16);
    vst1q_s16(output + 8, q1s16);
    vst1q_s16(output + 16, q2s16);
    vst1q_s16(output + 24, q3s16);
    return;
}
Exemple #8
0
unsigned int vp8_variance16x8_neon(
        const unsigned char *src_ptr,
        int source_stride,
        const unsigned char *ref_ptr,
        int recon_stride,
        unsigned int *sse) {
    int i;
    int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16;
    uint32x2_t d0u32, d10u32;
    int64x1_t d0s64, d1s64;
    uint8x16_t q0u8, q1u8, q2u8, q3u8;
    uint16x8_t q11u16, q12u16, q13u16, q14u16;
    int32x4_t q8s32, q9s32, q10s32;
    int64x2_t q0s64, q1s64, q5s64;

    q8s32 = vdupq_n_s32(0);
    q9s32 = vdupq_n_s32(0);
    q10s32 = vdupq_n_s32(0);

    for (i = 0; i < 4; i++) {  // variance16x8_neon_loop
        q0u8 = vld1q_u8(src_ptr);
        src_ptr += source_stride;
        q1u8 = vld1q_u8(src_ptr);
        src_ptr += source_stride;
        __builtin_prefetch(src_ptr);

        q2u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;
        q3u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;
        __builtin_prefetch(ref_ptr);

        q11u16 = vsubl_u8(vget_low_u8(q0u8), vget_low_u8(q2u8));
        q12u16 = vsubl_u8(vget_high_u8(q0u8), vget_high_u8(q2u8));
        q13u16 = vsubl_u8(vget_low_u8(q1u8), vget_low_u8(q3u8));
        q14u16 = vsubl_u8(vget_high_u8(q1u8), vget_high_u8(q3u8));

        d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
        d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16));
        q9s32 = vmlal_s16(q9s32, d22s16, d22s16);
        q10s32 = vmlal_s16(q10s32, d23s16, d23s16);

        d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
        d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16));
        q9s32 = vmlal_s16(q9s32, d24s16, d24s16);
        q10s32 = vmlal_s16(q10s32, d25s16, d25s16);

        d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16));
        d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16));
        q9s32 = vmlal_s16(q9s32, d26s16, d26s16);
        q10s32 = vmlal_s16(q10s32, d27s16, d27s16);

        d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16));
        d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16));
        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16));
        q9s32 = vmlal_s16(q9s32, d28s16, d28s16);
        q10s32 = vmlal_s16(q10s32, d29s16, d29s16);
    }

    q10s32 = vaddq_s32(q10s32, q9s32);
    q0s64 = vpaddlq_s32(q8s32);
    q1s64 = vpaddlq_s32(q10s32);

    d0s64 = vadd_s64(vget_low_s64(q0s64), vget_high_s64(q0s64));
    d1s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64));

    q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64),
                      vreinterpret_s32_s64(d0s64));
    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0);

    d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 7);
    d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32);

    return vget_lane_u32(d0u32, 0);
}
Exemple #9
0
unsigned int vpx_mse16x16_neon(
        const unsigned char *src_ptr,
        int source_stride,
        const unsigned char *ref_ptr,
        int recon_stride,
        unsigned int *sse) {
    int i;
    int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16;
    int64x1_t d0s64;
    uint8x16_t q0u8, q1u8, q2u8, q3u8;
    int32x4_t q7s32, q8s32, q9s32, q10s32;
    uint16x8_t q11u16, q12u16, q13u16, q14u16;
    int64x2_t q1s64;

    q7s32 = vdupq_n_s32(0);
    q8s32 = vdupq_n_s32(0);
    q9s32 = vdupq_n_s32(0);
    q10s32 = vdupq_n_s32(0);

    for (i = 0; i < 8; i++) {  // mse16x16_neon_loop
        q0u8 = vld1q_u8(src_ptr);
        src_ptr += source_stride;
        q1u8 = vld1q_u8(src_ptr);
        src_ptr += source_stride;
        q2u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;
        q3u8 = vld1q_u8(ref_ptr);
        ref_ptr += recon_stride;

        q11u16 = vsubl_u8(vget_low_u8(q0u8), vget_low_u8(q2u8));
        q12u16 = vsubl_u8(vget_high_u8(q0u8), vget_high_u8(q2u8));
        q13u16 = vsubl_u8(vget_low_u8(q1u8), vget_low_u8(q3u8));
        q14u16 = vsubl_u8(vget_high_u8(q1u8), vget_high_u8(q3u8));

        d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
        d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
        q7s32 = vmlal_s16(q7s32, d22s16, d22s16);
        q8s32 = vmlal_s16(q8s32, d23s16, d23s16);

        d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
        d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
        q9s32 = vmlal_s16(q9s32, d24s16, d24s16);
        q10s32 = vmlal_s16(q10s32, d25s16, d25s16);

        d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16));
        d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16));
        q7s32 = vmlal_s16(q7s32, d26s16, d26s16);
        q8s32 = vmlal_s16(q8s32, d27s16, d27s16);

        d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16));
        d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16));
        q9s32 = vmlal_s16(q9s32, d28s16, d28s16);
        q10s32 = vmlal_s16(q10s32, d29s16, d29s16);
    }

    q7s32 = vaddq_s32(q7s32, q8s32);
    q9s32 = vaddq_s32(q9s32, q10s32);
    q10s32 = vaddq_s32(q7s32, q9s32);

    q1s64 = vpaddlq_s32(q10s32);
    d0s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64));

    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d0s64), 0);
    return vget_lane_u32(vreinterpret_u32_s64(d0s64), 0);
}
Exemple #10
0
void aom_convolve8_horiz_neon(const uint8_t *src, ptrdiff_t src_stride,
                              uint8_t *dst, ptrdiff_t dst_stride,
                              const int16_t *filter_x, int x_step_q4,
                              const int16_t *filter_y,  // unused
                              int y_step_q4,            // unused
                              int w, int h) {
  int width;
  const uint8_t *s, *psrc;
  uint8_t *d, *pdst;
  uint8x8_t d2u8, d3u8, d24u8, d25u8, d26u8, d27u8, d28u8, d29u8;
  uint32x2_t d2u32, d3u32, d28u32, d29u32, d30u32, d31u32;
  uint8x16_t q12u8, q13u8, q14u8, q15u8;
  int16x4_t d16s16, d17s16, d18s16, d19s16, d20s16, d22s16, d23s16;
  int16x4_t d24s16, d25s16, d26s16, d27s16;
  uint16x4_t d2u16, d3u16, d4u16, d5u16, d16u16, d17u16, d18u16, d19u16;
  int16x8_t q0s16;
  uint16x8_t q1u16, q2u16, q8u16, q9u16, q10u16, q11u16, q12u16, q13u16;
  int32x4_t q1s32, q2s32, q14s32, q15s32;
  uint16x8x2_t q0x2u16;
  uint8x8x2_t d0x2u8, d1x2u8;
  uint32x2x2_t d0x2u32;
  uint16x4x2_t d0x2u16, d1x2u16;
  uint32x4x2_t q0x2u32;

  assert(x_step_q4 == 16);

  (void)x_step_q4;
  (void)y_step_q4;
  (void)filter_y;

  q0s16 = vld1q_s16(filter_x);

  src -= 3;  // adjust for taps
  for (; h > 0; h -= 4, src += src_stride * 4,
                dst += dst_stride * 4) {  // loop_horiz_v
    s = src;
    d24u8 = vld1_u8(s);
    s += src_stride;
    d25u8 = vld1_u8(s);
    s += src_stride;
    d26u8 = vld1_u8(s);
    s += src_stride;
    d27u8 = vld1_u8(s);

    q12u8 = vcombine_u8(d24u8, d25u8);
    q13u8 = vcombine_u8(d26u8, d27u8);

    q0x2u16 =
        vtrnq_u16(vreinterpretq_u16_u8(q12u8), vreinterpretq_u16_u8(q13u8));
    d24u8 = vreinterpret_u8_u16(vget_low_u16(q0x2u16.val[0]));
    d25u8 = vreinterpret_u8_u16(vget_high_u16(q0x2u16.val[0]));
    d26u8 = vreinterpret_u8_u16(vget_low_u16(q0x2u16.val[1]));
    d27u8 = vreinterpret_u8_u16(vget_high_u16(q0x2u16.val[1]));
    d0x2u8 = vtrn_u8(d24u8, d25u8);
    d1x2u8 = vtrn_u8(d26u8, d27u8);

    __builtin_prefetch(src + src_stride * 4);
    __builtin_prefetch(src + src_stride * 5);
    __builtin_prefetch(src + src_stride * 6);

    q8u16 = vmovl_u8(d0x2u8.val[0]);
    q9u16 = vmovl_u8(d0x2u8.val[1]);
    q10u16 = vmovl_u8(d1x2u8.val[0]);
    q11u16 = vmovl_u8(d1x2u8.val[1]);

    d16u16 = vget_low_u16(q8u16);
    d17u16 = vget_high_u16(q8u16);
    d18u16 = vget_low_u16(q9u16);
    d19u16 = vget_high_u16(q9u16);
    q8u16 = vcombine_u16(d16u16, d18u16);  // vswp 17 18
    q9u16 = vcombine_u16(d17u16, d19u16);

    d20s16 = vreinterpret_s16_u16(vget_low_u16(q10u16));
    d23s16 = vreinterpret_s16_u16(vget_high_u16(q10u16));  // vmov 23 21
    for (width = w, psrc = src + 7, pdst = dst; width > 0;
         width -= 4, psrc += 4, pdst += 4) {  // loop_horiz
      s = psrc;
      d28u32 = vld1_dup_u32((const uint32_t *)s);
      s += src_stride;
      d29u32 = vld1_dup_u32((const uint32_t *)s);
      s += src_stride;
      d31u32 = vld1_dup_u32((const uint32_t *)s);
      s += src_stride;
      d30u32 = vld1_dup_u32((const uint32_t *)s);

      __builtin_prefetch(psrc + 64);

      d0x2u16 =
          vtrn_u16(vreinterpret_u16_u32(d28u32), vreinterpret_u16_u32(d31u32));
      d1x2u16 =
          vtrn_u16(vreinterpret_u16_u32(d29u32), vreinterpret_u16_u32(d30u32));
      d0x2u8 = vtrn_u8(vreinterpret_u8_u16(d0x2u16.val[0]),   // d28
                       vreinterpret_u8_u16(d1x2u16.val[0]));  // d29
      d1x2u8 = vtrn_u8(vreinterpret_u8_u16(d0x2u16.val[1]),   // d31
                       vreinterpret_u8_u16(d1x2u16.val[1]));  // d30

      __builtin_prefetch(psrc + 64 + src_stride);

      q14u8 = vcombine_u8(d0x2u8.val[0], d0x2u8.val[1]);
      q15u8 = vcombine_u8(d1x2u8.val[1], d1x2u8.val[0]);
      q0x2u32 =
          vtrnq_u32(vreinterpretq_u32_u8(q14u8), vreinterpretq_u32_u8(q15u8));

      d28u8 = vreinterpret_u8_u32(vget_low_u32(q0x2u32.val[0]));
      d29u8 = vreinterpret_u8_u32(vget_high_u32(q0x2u32.val[0]));
      q12u16 = vmovl_u8(d28u8);
      q13u16 = vmovl_u8(d29u8);

      __builtin_prefetch(psrc + 64 + src_stride * 2);

      d16s16 = vreinterpret_s16_u16(vget_low_u16(q8u16));
      d17s16 = vreinterpret_s16_u16(vget_high_u16(q8u16));
      d18s16 = vreinterpret_s16_u16(vget_low_u16(q9u16));
      d19s16 = vreinterpret_s16_u16(vget_high_u16(q9u16));
      d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
      d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
      d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
      d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16));
      d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16));

      q1s32 = MULTIPLY_BY_Q0(d16s16, d17s16, d20s16, d22s16, d18s16, d19s16,
                             d23s16, d24s16, q0s16);
      q2s32 = MULTIPLY_BY_Q0(d17s16, d20s16, d22s16, d18s16, d19s16, d23s16,
                             d24s16, d26s16, q0s16);
      q14s32 = MULTIPLY_BY_Q0(d20s16, d22s16, d18s16, d19s16, d23s16, d24s16,
                              d26s16, d27s16, q0s16);
      q15s32 = MULTIPLY_BY_Q0(d22s16, d18s16, d19s16, d23s16, d24s16, d26s16,
                              d27s16, d25s16, q0s16);

      __builtin_prefetch(psrc + 60 + src_stride * 3);

      d2u16 = vqrshrun_n_s32(q1s32, 7);
      d3u16 = vqrshrun_n_s32(q2s32, 7);
      d4u16 = vqrshrun_n_s32(q14s32, 7);
      d5u16 = vqrshrun_n_s32(q15s32, 7);

      q1u16 = vcombine_u16(d2u16, d3u16);
      q2u16 = vcombine_u16(d4u16, d5u16);

      d2u8 = vqmovn_u16(q1u16);
      d3u8 = vqmovn_u16(q2u16);

      d0x2u16 = vtrn_u16(vreinterpret_u16_u8(d2u8), vreinterpret_u16_u8(d3u8));
      d0x2u32 = vtrn_u32(vreinterpret_u32_u16(d0x2u16.val[0]),
                         vreinterpret_u32_u16(d0x2u16.val[1]));
      d0x2u8 = vtrn_u8(vreinterpret_u8_u32(d0x2u32.val[0]),
                       vreinterpret_u8_u32(d0x2u32.val[1]));

      d2u32 = vreinterpret_u32_u8(d0x2u8.val[0]);
      d3u32 = vreinterpret_u32_u8(d0x2u8.val[1]);

      d = pdst;
      vst1_lane_u32((uint32_t *)d, d2u32, 0);
      d += dst_stride;
      vst1_lane_u32((uint32_t *)d, d3u32, 0);
      d += dst_stride;
      vst1_lane_u32((uint32_t *)d, d2u32, 1);
      d += dst_stride;
      vst1_lane_u32((uint32_t *)d, d3u32, 1);

      q8u16 = q9u16;
      d20s16 = d23s16;
      q11u16 = q12u16;
      q9u16 = q13u16;
      d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
    }
  }
  return;
}
Exemple #11
0
void aom_convolve8_vert_neon(const uint8_t *src, ptrdiff_t src_stride,
                             uint8_t *dst, ptrdiff_t dst_stride,
                             const int16_t *filter_x,  // unused
                             int x_step_q4,            // unused
                             const int16_t *filter_y, int y_step_q4, int w,
                             int h) {
  int height;
  const uint8_t *s;
  uint8_t *d;
  uint32x2_t d2u32, d3u32;
  uint32x2_t d16u32, d18u32, d20u32, d22u32, d24u32, d26u32;
  int16x4_t d16s16, d17s16, d18s16, d19s16, d20s16, d21s16, d22s16;
  int16x4_t d24s16, d25s16, d26s16, d27s16;
  uint16x4_t d2u16, d3u16, d4u16, d5u16;
  int16x8_t q0s16;
  uint16x8_t q1u16, q2u16, q8u16, q9u16, q10u16, q11u16, q12u16, q13u16;
  int32x4_t q1s32, q2s32, q14s32, q15s32;

  assert(y_step_q4 == 16);

  (void)x_step_q4;
  (void)y_step_q4;
  (void)filter_x;

  src -= src_stride * 3;
  q0s16 = vld1q_s16(filter_y);
  for (; w > 0; w -= 4, src += 4, dst += 4) {  // loop_vert_h
    s = src;
    d16u32 = vld1_lane_u32((const uint32_t *)s, d16u32, 0);
    s += src_stride;
    d16u32 = vld1_lane_u32((const uint32_t *)s, d16u32, 1);
    s += src_stride;
    d18u32 = vld1_lane_u32((const uint32_t *)s, d18u32, 0);
    s += src_stride;
    d18u32 = vld1_lane_u32((const uint32_t *)s, d18u32, 1);
    s += src_stride;
    d20u32 = vld1_lane_u32((const uint32_t *)s, d20u32, 0);
    s += src_stride;
    d20u32 = vld1_lane_u32((const uint32_t *)s, d20u32, 1);
    s += src_stride;
    d22u32 = vld1_lane_u32((const uint32_t *)s, d22u32, 0);
    s += src_stride;

    q8u16 = vmovl_u8(vreinterpret_u8_u32(d16u32));
    q9u16 = vmovl_u8(vreinterpret_u8_u32(d18u32));
    q10u16 = vmovl_u8(vreinterpret_u8_u32(d20u32));
    q11u16 = vmovl_u8(vreinterpret_u8_u32(d22u32));

    d18s16 = vreinterpret_s16_u16(vget_low_u16(q9u16));
    d19s16 = vreinterpret_s16_u16(vget_high_u16(q9u16));
    d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
    d = dst;
    for (height = h; height > 0; height -= 4) {  // loop_vert
      d24u32 = vld1_lane_u32((const uint32_t *)s, d24u32, 0);
      s += src_stride;
      d26u32 = vld1_lane_u32((const uint32_t *)s, d26u32, 0);
      s += src_stride;
      d26u32 = vld1_lane_u32((const uint32_t *)s, d26u32, 1);
      s += src_stride;
      d24u32 = vld1_lane_u32((const uint32_t *)s, d24u32, 1);
      s += src_stride;

      q12u16 = vmovl_u8(vreinterpret_u8_u32(d24u32));
      q13u16 = vmovl_u8(vreinterpret_u8_u32(d26u32));

      d16s16 = vreinterpret_s16_u16(vget_low_u16(q8u16));
      d17s16 = vreinterpret_s16_u16(vget_high_u16(q8u16));
      d20s16 = vreinterpret_s16_u16(vget_low_u16(q10u16));
      d21s16 = vreinterpret_s16_u16(vget_high_u16(q10u16));
      d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
      d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
      d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16));
      d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16));

      __builtin_prefetch(d);
      __builtin_prefetch(d + dst_stride);
      q1s32 = MULTIPLY_BY_Q0(d16s16, d17s16, d18s16, d19s16, d20s16, d21s16,
                             d22s16, d24s16, q0s16);
      __builtin_prefetch(d + dst_stride * 2);
      __builtin_prefetch(d + dst_stride * 3);
      q2s32 = MULTIPLY_BY_Q0(d17s16, d18s16, d19s16, d20s16, d21s16, d22s16,
                             d24s16, d26s16, q0s16);
      __builtin_prefetch(s);
      __builtin_prefetch(s + src_stride);
      q14s32 = MULTIPLY_BY_Q0(d18s16, d19s16, d20s16, d21s16, d22s16, d24s16,
                              d26s16, d27s16, q0s16);
      __builtin_prefetch(s + src_stride * 2);
      __builtin_prefetch(s + src_stride * 3);
      q15s32 = MULTIPLY_BY_Q0(d19s16, d20s16, d21s16, d22s16, d24s16, d26s16,
                              d27s16, d25s16, q0s16);

      d2u16 = vqrshrun_n_s32(q1s32, 7);
      d3u16 = vqrshrun_n_s32(q2s32, 7);
      d4u16 = vqrshrun_n_s32(q14s32, 7);
      d5u16 = vqrshrun_n_s32(q15s32, 7);

      q1u16 = vcombine_u16(d2u16, d3u16);
      q2u16 = vcombine_u16(d4u16, d5u16);

      d2u32 = vreinterpret_u32_u8(vqmovn_u16(q1u16));
      d3u32 = vreinterpret_u32_u8(vqmovn_u16(q2u16));

      vst1_lane_u32((uint32_t *)d, d2u32, 0);
      d += dst_stride;
      vst1_lane_u32((uint32_t *)d, d2u32, 1);
      d += dst_stride;
      vst1_lane_u32((uint32_t *)d, d3u32, 0);
      d += dst_stride;
      vst1_lane_u32((uint32_t *)d, d3u32, 1);
      d += dst_stride;

      q8u16 = q10u16;
      d18s16 = d22s16;
      d19s16 = d24s16;
      q10u16 = q13u16;
      d22s16 = d25s16;
    }
  }
  return;
}