|  | /* | 
|  | * Copyright (c) 2021, Alliance for Open Media. All rights reserved | 
|  | * | 
|  | * This source code is subject to the terms of the BSD 3-Clause Clear License | 
|  | * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear | 
|  | * License was not distributed with this source code in the LICENSE file, you | 
|  | * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/.  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 | 
|  | * aomedia.org/license/patent-license/. | 
|  | */ | 
|  |  | 
|  | #include <arm_neon.h> | 
|  | #include <assert.h> | 
|  |  | 
|  | #include "config/aom_config.h" | 
|  | #include "config/av1_rtcd.h" | 
|  |  | 
|  | #include "aom_dsp/txfm_common.h" | 
|  | #include "aom_ports/mem.h" | 
|  | #include "av1/common/common.h" | 
|  | #include "av1/common/arm/convolve_neon.h" | 
|  | #include "av1/common/arm/mem_neon.h" | 
|  | #include "av1/common/arm/transpose_neon.h" | 
|  |  | 
|  | #if !defined(__aarch64__) | 
|  | static INLINE void compute_avg_4x1(uint16x4_t res0, uint16x4_t d0, | 
|  | const uint16_t fwd_offset, | 
|  | const uint16_t bck_offset, | 
|  | const int16x4_t sub_const_vec, | 
|  | const int16_t round_bits, | 
|  | const int use_wtd_comp_avg, uint8x8_t *t0) { | 
|  | int16x4_t tmp0; | 
|  | uint16x4_t tmp_u0; | 
|  | uint32x4_t sum0; | 
|  | int32x4_t dst0; | 
|  | int16x8_t tmp4; | 
|  |  | 
|  | if (use_wtd_comp_avg) { | 
|  | const int32x4_t round_bits_vec = vdupq_n_s32((int32_t)(-round_bits)); | 
|  |  | 
|  | sum0 = vmull_n_u16(res0, fwd_offset); | 
|  | sum0 = vmlal_n_u16(sum0, d0, bck_offset); | 
|  |  | 
|  | sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS); | 
|  |  | 
|  | dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), vmovl_s16(sub_const_vec)); | 
|  |  | 
|  | dst0 = vqrshlq_s32(dst0, round_bits_vec); | 
|  |  | 
|  | tmp0 = vqmovn_s32(dst0); | 
|  | tmp4 = vcombine_s16(tmp0, tmp0); | 
|  |  | 
|  | *t0 = vqmovun_s16(tmp4); | 
|  | } else { | 
|  | const int16x4_t round_bits_vec = vdup_n_s16(-round_bits); | 
|  | tmp_u0 = vhadd_u16(res0, d0); | 
|  |  | 
|  | tmp0 = vsub_s16(vreinterpret_s16_u16(tmp_u0), sub_const_vec); | 
|  |  | 
|  | tmp0 = vqrshl_s16(tmp0, round_bits_vec); | 
|  |  | 
|  | tmp4 = vcombine_s16(tmp0, tmp0); | 
|  |  | 
|  | *t0 = vqmovun_s16(tmp4); | 
|  | } | 
|  | } | 
|  |  | 
|  | static INLINE void compute_avg_8x1(uint16x8_t res0, uint16x8_t d0, | 
|  | const uint16_t fwd_offset, | 
|  | const uint16_t bck_offset, | 
|  | const int16x4_t sub_const, | 
|  | const int16_t round_bits, | 
|  | const int use_wtd_comp_avg, uint8x8_t *t0) { | 
|  | int16x4_t tmp0, tmp2; | 
|  | int16x8_t f0; | 
|  | uint32x4_t sum0, sum2; | 
|  | int32x4_t dst0, dst2; | 
|  |  | 
|  | uint16x8_t tmp_u0; | 
|  |  | 
|  | if (use_wtd_comp_avg) { | 
|  | const int32x4_t sub_const_vec = vmovl_s16(sub_const); | 
|  | const int32x4_t round_bits_vec = vdupq_n_s32(-(int32_t)round_bits); | 
|  |  | 
|  | sum0 = vmull_n_u16(vget_low_u16(res0), fwd_offset); | 
|  | sum0 = vmlal_n_u16(sum0, vget_low_u16(d0), bck_offset); | 
|  | sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS); | 
|  |  | 
|  | sum2 = vmull_n_u16(vget_high_u16(res0), fwd_offset); | 
|  | sum2 = vmlal_n_u16(sum2, vget_high_u16(d0), bck_offset); | 
|  | sum2 = vshrq_n_u32(sum2, DIST_PRECISION_BITS); | 
|  |  | 
|  | dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), sub_const_vec); | 
|  | dst2 = vsubq_s32(vreinterpretq_s32_u32(sum2), sub_const_vec); | 
|  |  | 
|  | dst0 = vqrshlq_s32(dst0, round_bits_vec); | 
|  | dst2 = vqrshlq_s32(dst2, round_bits_vec); | 
|  |  | 
|  | tmp0 = vqmovn_s32(dst0); | 
|  | tmp2 = vqmovn_s32(dst2); | 
|  |  | 
|  | f0 = vcombine_s16(tmp0, tmp2); | 
|  |  | 
|  | *t0 = vqmovun_s16(f0); | 
|  |  | 
|  | } else { | 
|  | const int16x8_t sub_const_vec = vcombine_s16(sub_const, sub_const); | 
|  | const int16x8_t round_bits_vec = vdupq_n_s16(-round_bits); | 
|  |  | 
|  | tmp_u0 = vhaddq_u16(res0, d0); | 
|  |  | 
|  | f0 = vsubq_s16(vreinterpretq_s16_u16(tmp_u0), sub_const_vec); | 
|  |  | 
|  | f0 = vqrshlq_s16(f0, round_bits_vec); | 
|  |  | 
|  | *t0 = vqmovun_s16(f0); | 
|  | } | 
|  | } | 
|  | #endif  // !defined(__arch64__) | 
|  |  | 
|  | static INLINE void compute_avg_4x4( | 
|  | uint16x4_t res0, uint16x4_t res1, uint16x4_t res2, uint16x4_t res3, | 
|  | uint16x4_t d0, uint16x4_t d1, uint16x4_t d2, uint16x4_t d3, | 
|  | const uint16_t fwd_offset, const uint16_t bck_offset, | 
|  | const int16x4_t sub_const_vec, const int16_t round_bits, | 
|  | const int use_wtd_comp_avg, uint8x8_t *t0, uint8x8_t *t1) { | 
|  | int16x4_t tmp0, tmp1, tmp2, tmp3; | 
|  | uint16x4_t tmp_u0, tmp_u1, tmp_u2, tmp_u3; | 
|  | uint32x4_t sum0, sum1, sum2, sum3; | 
|  |  | 
|  | int32x4_t dst0, dst1, dst2, dst3; | 
|  | int16x8_t tmp4, tmp5; | 
|  | const int16x8_t zero = vdupq_n_s16(0); | 
|  |  | 
|  | if (use_wtd_comp_avg) { | 
|  | const int32x4_t round_bits_vec = vdupq_n_s32((int32_t)(-round_bits)); | 
|  | const int32x4_t const_vec = vmovl_s16(sub_const_vec); | 
|  |  | 
|  | sum0 = vmull_n_u16(res0, fwd_offset); | 
|  | sum0 = vmlal_n_u16(sum0, d0, bck_offset); | 
|  | sum1 = vmull_n_u16(res1, fwd_offset); | 
|  | sum1 = vmlal_n_u16(sum1, d1, bck_offset); | 
|  | sum2 = vmull_n_u16(res2, fwd_offset); | 
|  | sum2 = vmlal_n_u16(sum2, d2, bck_offset); | 
|  | sum3 = vmull_n_u16(res3, fwd_offset); | 
|  | sum3 = vmlal_n_u16(sum3, d3, bck_offset); | 
|  |  | 
|  | sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS); | 
|  | sum1 = vshrq_n_u32(sum1, DIST_PRECISION_BITS); | 
|  | sum2 = vshrq_n_u32(sum2, DIST_PRECISION_BITS); | 
|  | sum3 = vshrq_n_u32(sum3, DIST_PRECISION_BITS); | 
|  |  | 
|  | dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), const_vec); | 
|  | dst1 = vsubq_s32(vreinterpretq_s32_u32(sum1), const_vec); | 
|  | dst2 = vsubq_s32(vreinterpretq_s32_u32(sum2), const_vec); | 
|  | dst3 = vsubq_s32(vreinterpretq_s32_u32(sum3), const_vec); | 
|  |  | 
|  | dst0 = vqrshlq_s32(dst0, round_bits_vec); | 
|  | dst1 = vqrshlq_s32(dst1, round_bits_vec); | 
|  | dst2 = vqrshlq_s32(dst2, round_bits_vec); | 
|  | dst3 = vqrshlq_s32(dst3, round_bits_vec); | 
|  |  | 
|  | tmp0 = vqmovn_s32(dst0); | 
|  | tmp1 = vqmovn_s32(dst1); | 
|  | tmp2 = vqmovn_s32(dst2); | 
|  | tmp3 = vqmovn_s32(dst3); | 
|  | tmp4 = vcombine_s16(tmp0, tmp1); | 
|  | tmp5 = vcombine_s16(tmp2, tmp3); | 
|  | tmp4 = vmaxq_s16(tmp4, zero); | 
|  | tmp5 = vmaxq_s16(tmp5, zero); | 
|  |  | 
|  | *t0 = vqmovn_u16(vreinterpretq_u16_s16(tmp4)); | 
|  | *t1 = vqmovn_u16(vreinterpretq_u16_s16(tmp5)); | 
|  | } else { | 
|  | const int16x4_t round_bits_vec = vdup_n_s16(-round_bits); | 
|  | tmp_u0 = vhadd_u16(res0, d0); | 
|  | tmp_u1 = vhadd_u16(res1, d1); | 
|  | tmp_u2 = vhadd_u16(res2, d2); | 
|  | tmp_u3 = vhadd_u16(res3, d3); | 
|  |  | 
|  | tmp0 = vsub_s16(vreinterpret_s16_u16(tmp_u0), sub_const_vec); | 
|  | tmp1 = vsub_s16(vreinterpret_s16_u16(tmp_u1), sub_const_vec); | 
|  | tmp2 = vsub_s16(vreinterpret_s16_u16(tmp_u2), sub_const_vec); | 
|  | tmp3 = vsub_s16(vreinterpret_s16_u16(tmp_u3), sub_const_vec); | 
|  |  | 
|  | tmp0 = vqrshl_s16(tmp0, round_bits_vec); | 
|  | tmp1 = vqrshl_s16(tmp1, round_bits_vec); | 
|  | tmp2 = vqrshl_s16(tmp2, round_bits_vec); | 
|  | tmp3 = vqrshl_s16(tmp3, round_bits_vec); | 
|  |  | 
|  | tmp4 = vcombine_s16(tmp0, tmp1); | 
|  | tmp5 = vcombine_s16(tmp2, tmp3); | 
|  | tmp4 = vmaxq_s16(tmp4, zero); | 
|  | tmp5 = vmaxq_s16(tmp5, zero); | 
|  |  | 
|  | *t0 = vqmovn_u16(vreinterpretq_u16_s16(tmp4)); | 
|  | *t1 = vqmovn_u16(vreinterpretq_u16_s16(tmp5)); | 
|  | } | 
|  | } | 
|  |  | 
|  | static INLINE void compute_avg_8x4( | 
|  | uint16x8_t res0, uint16x8_t res1, uint16x8_t res2, uint16x8_t res3, | 
|  | uint16x8_t d0, uint16x8_t d1, uint16x8_t d2, uint16x8_t d3, | 
|  | const uint16_t fwd_offset, const uint16_t bck_offset, | 
|  | const int16x4_t sub_const, const int16_t round_bits, | 
|  | const int use_wtd_comp_avg, uint8x8_t *t0, uint8x8_t *t1, uint8x8_t *t2, | 
|  | uint8x8_t *t3) { | 
|  | int16x4_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; | 
|  | int16x8_t f0, f1, f2, f3; | 
|  | uint32x4_t sum0, sum1, sum2, sum3; | 
|  | uint32x4_t sum4, sum5, sum6, sum7; | 
|  | int32x4_t dst0, dst1, dst2, dst3; | 
|  | int32x4_t dst4, dst5, dst6, dst7; | 
|  | uint16x8_t tmp_u0, tmp_u1, tmp_u2, tmp_u3; | 
|  | const int16x8_t zero = vdupq_n_s16(0); | 
|  |  | 
|  | if (use_wtd_comp_avg) { | 
|  | const int32x4_t sub_const_vec = vmovl_s16(sub_const); | 
|  | const int32x4_t round_bits_vec = vdupq_n_s32(-(int32_t)round_bits); | 
|  |  | 
|  | sum0 = vmull_n_u16(vget_low_u16(res0), fwd_offset); | 
|  | sum0 = vmlal_n_u16(sum0, vget_low_u16(d0), bck_offset); | 
|  | sum1 = vmull_n_u16(vget_low_u16(res1), fwd_offset); | 
|  | sum1 = vmlal_n_u16(sum1, vget_low_u16(d1), bck_offset); | 
|  | sum0 = vshrq_n_u32(sum0, DIST_PRECISION_BITS); | 
|  | sum1 = vshrq_n_u32(sum1, DIST_PRECISION_BITS); | 
|  |  | 
|  | sum2 = vmull_n_u16(vget_high_u16(res0), fwd_offset); | 
|  | sum2 = vmlal_n_u16(sum2, vget_high_u16(d0), bck_offset); | 
|  | sum3 = vmull_n_u16(vget_high_u16(res1), fwd_offset); | 
|  | sum3 = vmlal_n_u16(sum3, vget_high_u16(d1), bck_offset); | 
|  | sum2 = vshrq_n_u32(sum2, DIST_PRECISION_BITS); | 
|  | sum3 = vshrq_n_u32(sum3, DIST_PRECISION_BITS); | 
|  |  | 
|  | sum4 = vmull_n_u16(vget_low_u16(res2), fwd_offset); | 
|  | sum4 = vmlal_n_u16(sum4, vget_low_u16(d2), bck_offset); | 
|  | sum5 = vmull_n_u16(vget_low_u16(res3), fwd_offset); | 
|  | sum5 = vmlal_n_u16(sum5, vget_low_u16(d3), bck_offset); | 
|  | sum4 = vshrq_n_u32(sum4, DIST_PRECISION_BITS); | 
|  | sum5 = vshrq_n_u32(sum5, DIST_PRECISION_BITS); | 
|  |  | 
|  | sum6 = vmull_n_u16(vget_high_u16(res2), fwd_offset); | 
|  | sum6 = vmlal_n_u16(sum6, vget_high_u16(d2), bck_offset); | 
|  | sum7 = vmull_n_u16(vget_high_u16(res3), fwd_offset); | 
|  | sum7 = vmlal_n_u16(sum7, vget_high_u16(d3), bck_offset); | 
|  | sum6 = vshrq_n_u32(sum6, DIST_PRECISION_BITS); | 
|  | sum7 = vshrq_n_u32(sum7, DIST_PRECISION_BITS); | 
|  |  | 
|  | dst0 = vsubq_s32(vreinterpretq_s32_u32(sum0), sub_const_vec); | 
|  | dst1 = vsubq_s32(vreinterpretq_s32_u32(sum1), sub_const_vec); | 
|  | dst2 = vsubq_s32(vreinterpretq_s32_u32(sum2), sub_const_vec); | 
|  | dst3 = vsubq_s32(vreinterpretq_s32_u32(sum3), sub_const_vec); | 
|  | dst4 = vsubq_s32(vreinterpretq_s32_u32(sum4), sub_const_vec); | 
|  | dst5 = vsubq_s32(vreinterpretq_s32_u32(sum5), sub_const_vec); | 
|  | dst6 = vsubq_s32(vreinterpretq_s32_u32(sum6), sub_const_vec); | 
|  | dst7 = vsubq_s32(vreinterpretq_s32_u32(sum7), sub_const_vec); | 
|  |  | 
|  | dst0 = vqrshlq_s32(dst0, round_bits_vec); | 
|  | dst1 = vqrshlq_s32(dst1, round_bits_vec); | 
|  | dst2 = vqrshlq_s32(dst2, round_bits_vec); | 
|  | dst3 = vqrshlq_s32(dst3, round_bits_vec); | 
|  | dst4 = vqrshlq_s32(dst4, round_bits_vec); | 
|  | dst5 = vqrshlq_s32(dst5, round_bits_vec); | 
|  | dst6 = vqrshlq_s32(dst6, round_bits_vec); | 
|  | dst7 = vqrshlq_s32(dst7, round_bits_vec); | 
|  |  | 
|  | tmp0 = vqmovn_s32(dst0); | 
|  | tmp1 = vqmovn_s32(dst1); | 
|  | tmp2 = vqmovn_s32(dst2); | 
|  | tmp3 = vqmovn_s32(dst3); | 
|  | tmp4 = vqmovn_s32(dst4); | 
|  | tmp5 = vqmovn_s32(dst5); | 
|  | tmp6 = vqmovn_s32(dst6); | 
|  | tmp7 = vqmovn_s32(dst7); | 
|  |  | 
|  | f0 = vcombine_s16(tmp0, tmp2); | 
|  | f1 = vcombine_s16(tmp1, tmp3); | 
|  | f2 = vcombine_s16(tmp4, tmp6); | 
|  | f3 = vcombine_s16(tmp5, tmp7); | 
|  |  | 
|  | f0 = vmaxq_s16(f0, zero); | 
|  | f1 = vmaxq_s16(f1, zero); | 
|  | f2 = vmaxq_s16(f2, zero); | 
|  | f3 = vmaxq_s16(f3, zero); | 
|  |  | 
|  | *t0 = vqmovn_u16(vreinterpretq_u16_s16(f0)); | 
|  | *t1 = vqmovn_u16(vreinterpretq_u16_s16(f1)); | 
|  | *t2 = vqmovn_u16(vreinterpretq_u16_s16(f2)); | 
|  | *t3 = vqmovn_u16(vreinterpretq_u16_s16(f3)); | 
|  |  | 
|  | } else { | 
|  | const int16x8_t sub_const_vec = vcombine_s16(sub_const, sub_const); | 
|  | const int16x8_t round_bits_vec = vdupq_n_s16(-round_bits); | 
|  |  | 
|  | tmp_u0 = vhaddq_u16(res0, d0); | 
|  | tmp_u1 = vhaddq_u16(res1, d1); | 
|  | tmp_u2 = vhaddq_u16(res2, d2); | 
|  | tmp_u3 = vhaddq_u16(res3, d3); | 
|  |  | 
|  | f0 = vsubq_s16(vreinterpretq_s16_u16(tmp_u0), sub_const_vec); | 
|  | f1 = vsubq_s16(vreinterpretq_s16_u16(tmp_u1), sub_const_vec); | 
|  | f2 = vsubq_s16(vreinterpretq_s16_u16(tmp_u2), sub_const_vec); | 
|  | f3 = vsubq_s16(vreinterpretq_s16_u16(tmp_u3), sub_const_vec); | 
|  |  | 
|  | f0 = vqrshlq_s16(f0, round_bits_vec); | 
|  | f1 = vqrshlq_s16(f1, round_bits_vec); | 
|  | f2 = vqrshlq_s16(f2, round_bits_vec); | 
|  | f3 = vqrshlq_s16(f3, round_bits_vec); | 
|  |  | 
|  | f0 = vmaxq_s16(f0, zero); | 
|  | f1 = vmaxq_s16(f1, zero); | 
|  | f2 = vmaxq_s16(f2, zero); | 
|  | f3 = vmaxq_s16(f3, zero); | 
|  |  | 
|  | *t0 = vqmovn_u16(vreinterpretq_u16_s16(f0)); | 
|  | *t1 = vqmovn_u16(vreinterpretq_u16_s16(f1)); | 
|  | *t2 = vqmovn_u16(vreinterpretq_u16_s16(f2)); | 
|  | *t3 = vqmovn_u16(vreinterpretq_u16_s16(f3)); | 
|  | } | 
|  | } | 
|  |  | 
|  | static INLINE void dist_wtd_convolve_2d_horiz_neon( | 
|  | const uint8_t *src, int src_stride, int16_t *im_block, const int im_stride, | 
|  | int16_t *x_filter_tmp, const int im_h, int w, const int round_0) { | 
|  | const int bd = 8; | 
|  | const uint8_t *s; | 
|  | int16_t *dst_ptr; | 
|  | int dst_stride; | 
|  | int width, height; | 
|  |  | 
|  | dst_ptr = im_block; | 
|  | dst_stride = im_stride; | 
|  | height = im_h; | 
|  | width = w; | 
|  |  | 
|  | if (w == 4) { | 
|  | int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0; | 
|  | int16x8_t tt0; | 
|  | uint8x8_t t0; | 
|  |  | 
|  | const int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2))); | 
|  | const int16x4_t shift_round_0 = vdup_n_s16(-(round_0)); | 
|  |  | 
|  | #if defined(__aarch64__) | 
|  | int16x4_t s8, s9, s10, d1, d2, d3; | 
|  | int16x8_t tt1, tt2, tt3; | 
|  | uint8x8_t t1, t2, t3; | 
|  | #endif | 
|  | do { | 
|  | s = src; | 
|  | __builtin_prefetch(s + 0 * src_stride); | 
|  | #if defined(__aarch64__) | 
|  | __builtin_prefetch(s + 1 * src_stride); | 
|  | __builtin_prefetch(s + 2 * src_stride); | 
|  | __builtin_prefetch(s + 3 * src_stride); | 
|  |  | 
|  | load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); | 
|  | transpose_u8_8x4(&t0, &t1, &t2, &t3); | 
|  | tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | tt1 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | tt2 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | tt3 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s0 = vget_low_s16(tt0); | 
|  | s1 = vget_low_s16(tt1); | 
|  | s2 = vget_low_s16(tt2); | 
|  | s3 = vget_low_s16(tt3); | 
|  | s4 = vget_high_s16(tt0); | 
|  | s5 = vget_high_s16(tt1); | 
|  | s6 = vget_high_s16(tt2); | 
|  | __builtin_prefetch(dst_ptr + 0 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 1 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 2 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 3 * dst_stride); | 
|  | s += 7; | 
|  |  | 
|  | load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); | 
|  | transpose_u8_8x4(&t0, &t1, &t2, &t3); | 
|  | tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | tt1 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | tt2 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | tt3 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s7 = vget_low_s16(tt0); | 
|  | s8 = vget_low_s16(tt1); | 
|  | s9 = vget_low_s16(tt2); | 
|  | s10 = vget_low_s16(tt3); | 
|  |  | 
|  | d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  |  | 
|  | transpose_s16_4x4d(&d0, &d1, &d2, &d3); | 
|  |  | 
|  | vst1_s16((dst_ptr + 0 * dst_stride), d0); | 
|  | vst1_s16((dst_ptr + 1 * dst_stride), d1); | 
|  | vst1_s16((dst_ptr + 2 * dst_stride), d2); | 
|  | vst1_s16((dst_ptr + 3 * dst_stride), d3); | 
|  |  | 
|  | src += 4 * src_stride; | 
|  | dst_ptr += 4 * dst_stride; | 
|  | height -= 4; | 
|  | #else | 
|  | t0 = vld1_u8(s);                            // a0 a1 a2 a3 a4 a5 a6 a7 | 
|  | tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7 | 
|  | s0 = vget_low_s16(tt0);                     // a0 a1 a2 a3 | 
|  | s4 = vget_high_s16(tt0);                    // a4 a5 a6 a7 | 
|  | __builtin_prefetch(dst_ptr); | 
|  | s += 8; | 
|  | t0 = vld1_u8(s);  // a8 a9 a10 a11 | 
|  |  | 
|  | // a8 a9 a10 a11 | 
|  | s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); | 
|  |  | 
|  | s1 = vext_s16(s0, s4, 1);  // a1 a2 a3 a4 | 
|  | s2 = vext_s16(s0, s4, 2);  // a2 a3 a4 a5 | 
|  | s3 = vext_s16(s0, s4, 3);  // a3 a4 a5 a6 | 
|  | s5 = vext_s16(s4, s7, 1);  // a5 a6 a7 a8 | 
|  | s6 = vext_s16(s4, s7, 2);  // a6 a7 a8 a9 | 
|  | s7 = vext_s16(s4, s7, 3);  // a7 a8 a9 a10 | 
|  |  | 
|  | d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  |  | 
|  | vst1_s16(dst_ptr, d0); | 
|  |  | 
|  | src += src_stride; | 
|  | dst_ptr += dst_stride; | 
|  | height -= 1; | 
|  | #endif | 
|  | } while (height > 0); | 
|  | } else { | 
|  | int16_t *d_tmp; | 
|  | int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; | 
|  | int16x8_t res0; | 
|  | uint8x8_t t0; | 
|  |  | 
|  | const int16x8_t horiz_const = vdupq_n_s16((1 << (bd + FILTER_BITS - 2))); | 
|  | const int16x8_t shift_round_0 = vdupq_n_s16(-(round_0)); | 
|  | do { | 
|  | #if defined(__aarch64__) | 
|  | uint8x8_t t1, t2, t3, t4, t5, t6, t7; | 
|  | int16x8_t s8, s9, s10, s11, s12, s13, s14; | 
|  | int16x8_t res1, res2, res3, res4, res5, res6, res7; | 
|  | __builtin_prefetch(src + 0 * src_stride); | 
|  | __builtin_prefetch(src + 1 * src_stride); | 
|  | __builtin_prefetch(src + 2 * src_stride); | 
|  | __builtin_prefetch(src + 3 * src_stride); | 
|  | __builtin_prefetch(src + 4 * src_stride); | 
|  | __builtin_prefetch(src + 5 * src_stride); | 
|  | __builtin_prefetch(src + 6 * src_stride); | 
|  | __builtin_prefetch(src + 7 * src_stride); | 
|  | load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); | 
|  | s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); | 
|  | s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); | 
|  |  | 
|  | width = w; | 
|  | s = src + 7; | 
|  | d_tmp = dst_ptr; | 
|  | __builtin_prefetch(dst_ptr + 0 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 1 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 2 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 3 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 4 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 5 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 6 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 7 * dst_stride); | 
|  |  | 
|  | do { | 
|  | load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s11 = vreinterpretq_s16_u16(vmovl_u8(t4)); | 
|  | s12 = vreinterpretq_s16_u16(vmovl_u8(t5)); | 
|  | s13 = vreinterpretq_s16_u16(vmovl_u8(t6)); | 
|  | s14 = vreinterpretq_s16_u16(vmovl_u8(t7)); | 
|  |  | 
|  | res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, x_filter_tmp, | 
|  | horiz_const, shift_round_0); | 
|  | res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12, | 
|  | x_filter_tmp, horiz_const, shift_round_0); | 
|  | res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13, | 
|  | x_filter_tmp, horiz_const, shift_round_0); | 
|  | res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14, | 
|  | x_filter_tmp, horiz_const, shift_round_0); | 
|  |  | 
|  | transpose_s16_8x8(&res0, &res1, &res2, &res3, &res4, &res5, &res6, | 
|  | &res7); | 
|  |  | 
|  | store_s16_8x8(d_tmp, dst_stride, res0, res1, res2, res3, res4, res5, | 
|  | res6, res7); | 
|  | s0 = s8; | 
|  | s1 = s9; | 
|  | s2 = s10; | 
|  | s3 = s11; | 
|  | s4 = s12; | 
|  | s5 = s13; | 
|  | s6 = s14; | 
|  | s += 8; | 
|  | d_tmp += 8; | 
|  | width -= 8; | 
|  | } while (width > 0); | 
|  | src += 8 * src_stride; | 
|  | dst_ptr += 8 * dst_stride; | 
|  | height -= 8; | 
|  | #else | 
|  | int16x8_t temp_0; | 
|  | t0 = vld1_u8(src); | 
|  | s0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7 | 
|  |  | 
|  | width = w; | 
|  | s = src + 8; | 
|  | d_tmp = dst_ptr; | 
|  | __builtin_prefetch(dst_ptr); | 
|  |  | 
|  | do { | 
|  | t0 = vld1_u8(s);  // a8 a9 a10 a11 a12 a13 a14 a15 | 
|  | s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | temp_0 = s0; | 
|  | s0 = s7; | 
|  |  | 
|  | s1 = vextq_s16(temp_0, s7, 1);  // a1 a2 a3 a4 a5 a6 a7 a8 | 
|  | s2 = vextq_s16(temp_0, s7, 2);  // a2 a3 a4 a5 a6 a7 a8 a9 | 
|  | s3 = vextq_s16(temp_0, s7, 3);  // a3 a4 a5 a6 a7 a8 a9 a10 | 
|  | s4 = vextq_s16(temp_0, s7, 4);  // a4 a5 a6 a7 a8 a9 a10 a11 | 
|  | s5 = vextq_s16(temp_0, s7, 5);  // a5 a6 a7 a8 a9 a10 a11 a12 | 
|  | s6 = vextq_s16(temp_0, s7, 6);  // a6 a7 a8 a9 a10 a11 a12 a13 | 
|  | s7 = vextq_s16(temp_0, s7, 7);  // a7 a8 a9 a10 a11 a12 a13 a14 | 
|  |  | 
|  | res0 = convolve8_8x8_s16(temp_0, s1, s2, s3, s4, s5, s6, s7, | 
|  | x_filter_tmp, horiz_const, shift_round_0); | 
|  | vst1q_s16(d_tmp, res0); | 
|  |  | 
|  | s += 8; | 
|  | d_tmp += 8; | 
|  | width -= 8; | 
|  | } while (width > 0); | 
|  | src += src_stride; | 
|  | dst_ptr += dst_stride; | 
|  | height -= 1; | 
|  | #endif | 
|  | } while (height > 0); | 
|  | } | 
|  | } | 
|  |  | 
|  | static INLINE void dist_wtd_convolve_2d_vert_neon( | 
|  | int16_t *im_block, const int im_stride, uint8_t *dst8, int dst8_stride, | 
|  | ConvolveParams *conv_params, const int16_t *y_filter, int h, int w) { | 
|  | uint8_t *dst_u8_ptr, *d_u8; | 
|  | CONV_BUF_TYPE *dst_ptr, *dst; | 
|  | int16_t *src_ptr, *s; | 
|  | uint16_t *d; | 
|  |  | 
|  | const int bd = 8; | 
|  | int height; | 
|  | int dst_stride = conv_params->dst_stride; | 
|  | const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; | 
|  | const int16_t sub_const = (1 << (offset_bits - conv_params->round_1)) + | 
|  | (1 << (offset_bits - conv_params->round_1 - 1)); | 
|  |  | 
|  | const int16_t round_bits = | 
|  | 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; | 
|  | const int offset = bd + 2 * FILTER_BITS - conv_params->round_0; | 
|  | const int32x4_t round_shift_vec = vdupq_n_s32(-(conv_params->round_1)); | 
|  | const int32x4_t offset_const = vdupq_n_s32(1 << offset); | 
|  | const int16x4_t sub_const_vec = vdup_n_s16(sub_const); | 
|  | const uint16_t fwd_offset = conv_params->fwd_offset; | 
|  | const uint16_t bck_offset = conv_params->bck_offset; | 
|  | const int use_wtd_comp_avg = is_uneven_wtd_comp_avg(conv_params); | 
|  | const int do_average = conv_params->do_average; | 
|  |  | 
|  | int16x4_t s0, s1, s2, s3, s4, s5, s6, s7; | 
|  | uint16x4_t res4, d0; | 
|  | uint8x8_t t0; | 
|  |  | 
|  | #if defined(__aarch64__) | 
|  | int16x4_t s8, s9, s10; | 
|  | uint16x4_t res5, res6, res7, d1, d2, d3; | 
|  | uint8x8_t t1; | 
|  | #endif | 
|  |  | 
|  | dst = conv_params->dst; | 
|  | src_ptr = im_block; | 
|  | dst_u8_ptr = dst8; | 
|  | dst_ptr = dst; | 
|  | height = h; | 
|  |  | 
|  | do { | 
|  | d = dst_ptr; | 
|  | d_u8 = dst_u8_ptr; | 
|  | s = src_ptr; | 
|  | height = h; | 
|  |  | 
|  | __builtin_prefetch(s + 0 * im_stride); | 
|  | __builtin_prefetch(s + 1 * im_stride); | 
|  | __builtin_prefetch(s + 2 * im_stride); | 
|  | __builtin_prefetch(s + 3 * im_stride); | 
|  | __builtin_prefetch(s + 4 * im_stride); | 
|  | __builtin_prefetch(s + 5 * im_stride); | 
|  | __builtin_prefetch(s + 6 * im_stride); | 
|  | __builtin_prefetch(s + 7 * im_stride); | 
|  |  | 
|  | load_s16_4x8(s, im_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); | 
|  | s += (7 * im_stride); | 
|  |  | 
|  | do { | 
|  | #if defined(__aarch64__) | 
|  | load_s16_4x4(s, im_stride, &s7, &s8, &s9, &s10); | 
|  | s += (im_stride << 2); | 
|  |  | 
|  | __builtin_prefetch(d + 0 * dst_stride); | 
|  | __builtin_prefetch(d + 1 * dst_stride); | 
|  | __builtin_prefetch(d + 2 * dst_stride); | 
|  | __builtin_prefetch(d + 3 * dst_stride); | 
|  |  | 
|  | __builtin_prefetch(d_u8 + 4 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 5 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 6 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 7 * dst8_stride); | 
|  |  | 
|  | d0 = convolve8_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, | 
|  | round_shift_vec, offset_const); | 
|  | d1 = convolve8_4x4_s32(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, | 
|  | round_shift_vec, offset_const); | 
|  | d2 = convolve8_4x4_s32(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, | 
|  | round_shift_vec, offset_const); | 
|  | d3 = convolve8_4x4_s32(s3, s4, s5, s6, s7, s8, s9, s10, y_filter, | 
|  | round_shift_vec, offset_const); | 
|  |  | 
|  | if (do_average) { | 
|  | load_u16_4x4(d, dst_stride, &res4, &res5, &res6, &res7); | 
|  | d += (dst_stride << 2); | 
|  |  | 
|  | compute_avg_4x4(res4, res5, res6, res7, d0, d1, d2, d3, fwd_offset, | 
|  | bck_offset, sub_const_vec, round_bits, use_wtd_comp_avg, | 
|  | &t0, &t1); | 
|  |  | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0); | 
|  | d_u8 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 1); | 
|  | d_u8 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 0); | 
|  | d_u8 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 1); | 
|  | d_u8 += dst8_stride; | 
|  |  | 
|  | } else { | 
|  | store_u16_4x4(d, dst_stride, d0, d1, d2, d3); | 
|  | d += (dst_stride << 2); | 
|  | } | 
|  | s0 = s4; | 
|  | s1 = s5; | 
|  | s2 = s6; | 
|  | s3 = s7; | 
|  | s4 = s8; | 
|  | s5 = s9; | 
|  | s6 = s10; | 
|  | height -= 4; | 
|  | #else | 
|  | s7 = vld1_s16(s); | 
|  | s += (im_stride); | 
|  |  | 
|  | __builtin_prefetch(d + 0 * dst_stride); | 
|  | __builtin_prefetch(d_u8 + 0 * dst8_stride); | 
|  |  | 
|  | d0 = convolve8_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, | 
|  | round_shift_vec, offset_const); | 
|  |  | 
|  | if (do_average) { | 
|  | res4 = vld1_u16(d); | 
|  | d += (dst_stride); | 
|  |  | 
|  | compute_avg_4x1(res4, d0, fwd_offset, bck_offset, sub_const_vec, | 
|  | round_bits, use_wtd_comp_avg, &t0); | 
|  |  | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0); | 
|  | d_u8 += dst8_stride; | 
|  |  | 
|  | } else { | 
|  | vst1_u16(d, d0); | 
|  | d += (dst_stride); | 
|  | } | 
|  | s0 = s1; | 
|  | s1 = s2; | 
|  | s2 = s3; | 
|  | s3 = s4; | 
|  | s4 = s5; | 
|  | s5 = s6; | 
|  | s6 = s7; | 
|  | height--; | 
|  | #endif | 
|  | } while (height > 0); | 
|  | src_ptr += 4; | 
|  | dst_ptr += 4; | 
|  | dst_u8_ptr += 4; | 
|  | w -= 4; | 
|  | } while (w > 0); | 
|  | } | 
|  |  | 
|  | void av1_dist_wtd_convolve_2d_neon(const uint8_t *src, int src_stride, | 
|  | uint8_t *dst8, int dst8_stride, int w, int h, | 
|  | const InterpFilterParams *filter_params_x, | 
|  | const InterpFilterParams *filter_params_y, | 
|  | const int subpel_x_qn, const int subpel_y_qn, | 
|  | ConvolveParams *conv_params) { | 
|  | assert(!(w % 4)); | 
|  | assert(!(h % 4)); | 
|  |  | 
|  | DECLARE_ALIGNED(16, int16_t, | 
|  | im_block[(MAX_SB_SIZE + HORIZ_EXTRA_ROWS) * MAX_SB_SIZE]); | 
|  |  | 
|  | const int im_h = h + filter_params_y->taps - 1; | 
|  | const int im_stride = MAX_SB_SIZE; | 
|  | const int vert_offset = filter_params_y->taps / 2 - 1; | 
|  | const int horiz_offset = filter_params_x->taps / 2 - 1; | 
|  | const int round_0 = conv_params->round_0 - 1; | 
|  | const uint8_t *src_ptr = src - vert_offset * src_stride - horiz_offset; | 
|  | const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( | 
|  | filter_params_x, subpel_x_qn & SUBPEL_MASK); | 
|  | const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( | 
|  | filter_params_y, subpel_y_qn & SUBPEL_MASK); | 
|  |  | 
|  | int16_t x_filter_tmp[8]; | 
|  | int16x8_t filter_x_coef = vld1q_s16(x_filter); | 
|  |  | 
|  | // filter coeffs are even, so downshifting by 1 to reduce intermediate | 
|  | // precision requirements. | 
|  | filter_x_coef = vshrq_n_s16(filter_x_coef, 1); | 
|  | vst1q_s16(&x_filter_tmp[0], filter_x_coef); | 
|  |  | 
|  | dist_wtd_convolve_2d_horiz_neon(src_ptr, src_stride, im_block, im_stride, | 
|  | x_filter_tmp, im_h, w, round_0); | 
|  |  | 
|  | dist_wtd_convolve_2d_vert_neon(im_block, im_stride, dst8, dst8_stride, | 
|  | conv_params, y_filter, h, w); | 
|  | } | 
|  |  | 
|  | void av1_dist_wtd_convolve_2d_copy_neon(const uint8_t *src, int src_stride, | 
|  | uint8_t *dst8, int dst8_stride, int w, | 
|  | int h, ConvolveParams *conv_params) { | 
|  | uint8x8_t res0_8, res1_8, res2_8, res3_8, tmp_shift0, tmp_shift1, tmp_shift2, | 
|  | tmp_shift3; | 
|  | uint16x8_t res_q0, res_q1, res_q2, res_q3, tmp_q0, tmp_q1, tmp_q2, tmp_q3; | 
|  | uint16x4_t tmp4, tmp5, tmp6, tmp7, res4, res5, res6, res7; | 
|  | const uint8_t *src1, *src2; | 
|  | uint8_t *dst8_1; | 
|  | CONV_BUF_TYPE *dst = conv_params->dst, *dst_1, *dst_2; | 
|  | const int dst_stride = conv_params->dst_stride; | 
|  | int x, y; | 
|  | const int16_t bits = | 
|  | FILTER_BITS * 2 - conv_params->round_1 - conv_params->round_0; | 
|  | const int bd = 8; | 
|  | const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; | 
|  | const int round_offset = (1 << (offset_bits - conv_params->round_1)) + | 
|  | (1 << (offset_bits - conv_params->round_1 - 1)); | 
|  | const int16x4_t sub_const_vec = vdup_n_s16((int16_t)round_offset); | 
|  | const uint16x8_t dup_round_offset16x8 = vdupq_n_u16((uint16_t)round_offset); | 
|  | const int16x4_t dup_bits16x4 = vdup_n_s16(bits); | 
|  | const int16x8_t dup_bits16x8 = vdupq_n_s16(bits); | 
|  | const uint16_t fwd_offset = conv_params->fwd_offset; | 
|  | const uint16_t bck_offset = conv_params->bck_offset; | 
|  | const int use_wtd_comp_avg = is_uneven_wtd_comp_avg(conv_params); | 
|  |  | 
|  | if (!(w & 0x07)) { | 
|  | for (y = 0; y < (h >> 2); ++y) { | 
|  | src1 = src; | 
|  | dst8_1 = dst8; | 
|  | dst_1 = dst; | 
|  | for (x = 0; x < (w >> 3); ++x) { | 
|  | src2 = src1; | 
|  | load_u8_8x4(src2, src_stride, &res0_8, &res1_8, &res2_8, &res3_8); | 
|  |  | 
|  | res_q0 = vaddq_u16(vshlq_u16(vmovl_u8(res0_8), dup_bits16x8), | 
|  | dup_round_offset16x8); | 
|  | res_q1 = vaddq_u16(vshlq_u16(vmovl_u8(res1_8), dup_bits16x8), | 
|  | dup_round_offset16x8); | 
|  | res_q2 = vaddq_u16(vshlq_u16(vmovl_u8(res2_8), dup_bits16x8), | 
|  | dup_round_offset16x8); | 
|  | res_q3 = vaddq_u16(vshlq_u16(vmovl_u8(res3_8), dup_bits16x8), | 
|  | dup_round_offset16x8); | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | dst_2 = dst_1; | 
|  | load_u16_8x4(dst_2, dst_stride, &tmp_q0, &tmp_q1, &tmp_q2, &tmp_q3); | 
|  |  | 
|  | compute_avg_8x4(tmp_q0, tmp_q1, tmp_q2, tmp_q3, res_q0, res_q1, | 
|  | res_q2, res_q3, fwd_offset, bck_offset, sub_const_vec, | 
|  | bits, use_wtd_comp_avg, &tmp_shift0, &tmp_shift1, | 
|  | &tmp_shift2, &tmp_shift3); | 
|  |  | 
|  | vst1_u8(dst8_1 + (0 * dst8_stride), tmp_shift0); | 
|  | vst1_u8(dst8_1 + (1 * dst8_stride), tmp_shift1); | 
|  | vst1_u8(dst8_1 + (2 * dst8_stride), tmp_shift2); | 
|  | vst1_u8(dst8_1 + (3 * dst8_stride), tmp_shift3); | 
|  |  | 
|  | } else { | 
|  | vst1q_u16(dst_1 + (0 * dst_stride), res_q0); | 
|  | vst1q_u16(dst_1 + (1 * dst_stride), res_q1); | 
|  | vst1q_u16(dst_1 + (2 * dst_stride), res_q2); | 
|  | vst1q_u16(dst_1 + (3 * dst_stride), res_q3); | 
|  | } | 
|  | src1 = src1 + 8; | 
|  | dst_1 = dst_1 + 8; | 
|  | dst8_1 = dst8_1 + 8; | 
|  | } | 
|  | src += src_stride * 4; | 
|  | dst8 += dst8_stride * 4; | 
|  | dst += dst_stride * 4; | 
|  | } | 
|  | } else if (!(w & 0x03)) { | 
|  | for (y = 0; y < (h >> 2); ++y) { | 
|  | src1 = src; | 
|  | dst8_1 = dst8; | 
|  | dst_1 = dst; | 
|  |  | 
|  | load_u8_8x4(src1, src_stride, &res0_8, &res1_8, &res2_8, &res3_8); | 
|  |  | 
|  | res4 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res0_8)), dup_bits16x4), | 
|  | vreinterpret_u16_s16(sub_const_vec)); | 
|  | res5 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res1_8)), dup_bits16x4), | 
|  | vreinterpret_u16_s16(sub_const_vec)); | 
|  | res6 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res2_8)), dup_bits16x4), | 
|  | vreinterpret_u16_s16(sub_const_vec)); | 
|  | res7 = vadd_u16(vshl_u16(vget_low_u16(vmovl_u8(res3_8)), dup_bits16x4), | 
|  | vreinterpret_u16_s16(sub_const_vec)); | 
|  | if (conv_params->do_average) { | 
|  | load_u16_4x4(dst_1, dst_stride, &tmp4, &tmp5, &tmp6, &tmp7); | 
|  |  | 
|  | compute_avg_4x4(tmp4, tmp5, tmp6, tmp7, res4, res5, res6, res7, | 
|  | fwd_offset, bck_offset, sub_const_vec, bits, | 
|  | use_wtd_comp_avg, &tmp_shift0, &tmp_shift1); | 
|  |  | 
|  | vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift0), 0); | 
|  | dst8_1 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift0), 1); | 
|  | dst8_1 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift1), 0); | 
|  | dst8_1 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)(dst8_1), vreinterpret_u32_u8(tmp_shift1), 1); | 
|  |  | 
|  | } else { | 
|  | vst1_u16(dst_1, res4); | 
|  | dst_1 += dst_stride; | 
|  | vst1_u16(dst_1, res5); | 
|  | dst_1 += dst_stride; | 
|  | vst1_u16(dst_1, res6); | 
|  | dst_1 += dst_stride; | 
|  | vst1_u16(dst_1, res7); | 
|  | } | 
|  | src += src_stride * 4; | 
|  | dst += dst_stride * 4; | 
|  | dst8 += dst8_stride * 4; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | void av1_dist_wtd_convolve_x_neon(const uint8_t *src, int src_stride, | 
|  | uint8_t *dst8, int dst8_stride, int w, int h, | 
|  | const InterpFilterParams *filter_params_x, | 
|  | const int subpel_x_qn, | 
|  | ConvolveParams *conv_params) { | 
|  | assert(!(w % 4)); | 
|  | assert(!(h % 4)); | 
|  |  | 
|  | CONV_BUF_TYPE *dst = conv_params->dst; | 
|  | int dst_stride = conv_params->dst_stride; | 
|  | const int horiz_offset = filter_params_x->taps / 2 - 1; | 
|  | const int bits = FILTER_BITS - conv_params->round_1; | 
|  | const int bd = 8; | 
|  | const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; | 
|  | const int round_offset = (1 << (offset_bits - conv_params->round_1)) + | 
|  | (1 << (offset_bits - conv_params->round_1 - 1)); | 
|  | const int round_bits = | 
|  | 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; | 
|  | const uint16_t fwd_offset = conv_params->fwd_offset; | 
|  | const uint16_t bck_offset = conv_params->bck_offset; | 
|  | const int use_wtd_comp_avg = is_uneven_wtd_comp_avg(conv_params); | 
|  |  | 
|  | // horizontal filter | 
|  | const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( | 
|  | filter_params_x, subpel_x_qn & SUBPEL_MASK); | 
|  |  | 
|  | const uint8_t *src_ptr = src - horiz_offset; | 
|  |  | 
|  | int16_t x_filter_tmp[8]; | 
|  | int16x8_t filter_x_coef = vld1q_s16(x_filter); | 
|  |  | 
|  | // filter coeffs are even, so downshifting by 1 to reduce intermediate | 
|  | // precision requirements. | 
|  | filter_x_coef = vshrq_n_s16(filter_x_coef, 1); | 
|  | vst1q_s16(&x_filter_tmp[0], filter_x_coef); | 
|  |  | 
|  | const uint8_t *s; | 
|  | uint8_t *d_u8; | 
|  | uint8_t *dst_u8_ptr; | 
|  | CONV_BUF_TYPE *d, *dst_ptr; | 
|  | int width, height; | 
|  | uint8x8_t t0; | 
|  | #if defined(__aarch64__) | 
|  | uint8x8_t t1, t2, t3, t4, t5, t6, t7; | 
|  | #endif | 
|  | s = src_ptr; | 
|  | dst_ptr = dst; | 
|  | dst_u8_ptr = dst8; | 
|  | width = w; | 
|  | height = h; | 
|  |  | 
|  | if ((w == 4) || (h == 4)) { | 
|  | int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0; | 
|  | int16x8_t tt0; | 
|  | uint16x4_t res4; | 
|  | #if defined(__aarch64__) | 
|  | int16x4_t s8, s9, s10, d1, d2, d3; | 
|  | int16x8_t tt1, tt2, tt3; | 
|  | uint16x4_t res5, res6, res7; | 
|  | uint32x2_t tu0 = vdup_n_u32(0), tu1 = vdup_n_u32(0); | 
|  | int16x8_t u0, u1; | 
|  | #else | 
|  | int16x4_t temp_0; | 
|  | #endif | 
|  | const int16x4_t zero = vdup_n_s16(0); | 
|  | const int16x4_t round_offset_vec = vdup_n_s16(round_offset); | 
|  | const int16x4_t shift_round_0 = vdup_n_s16(-conv_params->round_0 + 1); | 
|  | const int16x4_t horiz_const = vdup_n_s16(bits); | 
|  | do { | 
|  | s = src_ptr; | 
|  | d = dst_ptr; | 
|  | d_u8 = dst_u8_ptr; | 
|  | width = w; | 
|  | __builtin_prefetch(s + 0 * src_stride); | 
|  | #if defined(__aarch64__) | 
|  | __builtin_prefetch(s + 1 * src_stride); | 
|  | __builtin_prefetch(s + 2 * src_stride); | 
|  | __builtin_prefetch(s + 3 * src_stride); | 
|  |  | 
|  | load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3); | 
|  | transpose_u8_8x4(&t0, &t1, &t2, &t3); | 
|  | tt0 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | tt1 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | tt2 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | tt3 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s0 = vget_low_s16(tt0); | 
|  | s1 = vget_low_s16(tt1); | 
|  | s2 = vget_low_s16(tt2); | 
|  | s3 = vget_low_s16(tt3); | 
|  | s4 = vget_high_s16(tt0); | 
|  | s5 = vget_high_s16(tt1); | 
|  | s6 = vget_high_s16(tt2); | 
|  | __builtin_prefetch(d + 0 * dst_stride); | 
|  | __builtin_prefetch(d + 1 * dst_stride); | 
|  | __builtin_prefetch(d + 2 * dst_stride); | 
|  | __builtin_prefetch(d + 3 * dst_stride); | 
|  | s += 7; | 
|  | do { | 
|  | load_unaligned_u8_4x4(s, src_stride, &tu0, &tu1); | 
|  | t0 = vreinterpret_u8_u32(tu0); | 
|  | t1 = vreinterpret_u8_u32(tu1); | 
|  |  | 
|  | transpose_u8_4x4(&t0, &t1); | 
|  | u0 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | u1 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  |  | 
|  | s7 = vget_low_s16(u0); | 
|  | s8 = vget_low_s16(u1); | 
|  | s9 = vget_high_s16(u0); | 
|  | s10 = vget_high_s16(u1); | 
|  |  | 
|  | d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | d0 = vrshl_s16(d0, horiz_const); | 
|  | d0 = vadd_s16(d0, round_offset_vec); | 
|  | d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | d1 = vrshl_s16(d1, horiz_const); | 
|  | d1 = vadd_s16(d1, round_offset_vec); | 
|  | d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | d2 = vrshl_s16(d2, horiz_const); | 
|  | d2 = vadd_s16(d2, round_offset_vec); | 
|  | d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | d3 = vrshl_s16(d3, horiz_const); | 
|  | d3 = vadd_s16(d3, round_offset_vec); | 
|  |  | 
|  | transpose_s16_4x4d(&d0, &d1, &d2, &d3); | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | __builtin_prefetch(d + 0 * dst_stride); | 
|  | __builtin_prefetch(d + 1 * dst_stride); | 
|  | __builtin_prefetch(d + 2 * dst_stride); | 
|  | __builtin_prefetch(d + 3 * dst_stride); | 
|  |  | 
|  | __builtin_prefetch(d_u8 + 0 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 1 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 2 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 3 * dst8_stride); | 
|  |  | 
|  | load_u16_4x4(d, dst_stride, &res4, &res5, &res6, &res7); | 
|  |  | 
|  | compute_avg_4x4(res4, res5, res6, res7, vreinterpret_u16_s16(d0), | 
|  | vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2), | 
|  | vreinterpret_u16_s16(d3), fwd_offset, bck_offset, | 
|  | round_offset_vec, round_bits, use_wtd_comp_avg, &t0, | 
|  | &t1); | 
|  |  | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), | 
|  | 0);  // 00 01 02 03 | 
|  | vst1_lane_u32((uint32_t *)(d_u8 + dst8_stride), | 
|  | vreinterpret_u32_u8(t0), | 
|  | 1);  // 10 11 12 13 | 
|  | vst1_lane_u32((uint32_t *)(d_u8 + 2 * dst8_stride), | 
|  | vreinterpret_u32_u8(t1), | 
|  | 0);  // 20 21 22 23 | 
|  | vst1_lane_u32((uint32_t *)(d_u8 + 3 * dst8_stride), | 
|  | vreinterpret_u32_u8(t1), | 
|  | 1);  // 30 31 32 33 | 
|  | } else { | 
|  | store_u16_4x4(d, dst_stride, vreinterpret_u16_s16(d0), | 
|  | vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2), | 
|  | vreinterpret_u16_s16(d3)); | 
|  | } | 
|  |  | 
|  | s0 = s4; | 
|  | s1 = s5; | 
|  | s2 = s6; | 
|  | s3 = s7; | 
|  | s4 = s8; | 
|  | s5 = s9; | 
|  | s6 = s10; | 
|  |  | 
|  | s += 4; | 
|  | width -= 4; | 
|  | d += 4; | 
|  | d_u8 += 4; | 
|  | } while (width > 0); | 
|  | src_ptr += (src_stride << 2); | 
|  | dst_ptr += (dst_stride << 2); | 
|  | dst_u8_ptr += (dst8_stride << 2); | 
|  | height -= 4; | 
|  | #else | 
|  | t0 = vld1_u8(s);                            // a0 a1 a2 a3 a4 a5 a6 a7 | 
|  | tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7 | 
|  | s0 = vget_low_s16(tt0);                     // a0 a1 a2 a3 | 
|  | s4 = vget_high_s16(tt0);                    // a4 a5 a6 a7 | 
|  | __builtin_prefetch(d); | 
|  |  | 
|  | s += 8; | 
|  | do { | 
|  | t0 = vld1_u8(s);  // a8 a9 a10 a11 | 
|  |  | 
|  | // a8 a9 a10 a11 | 
|  | s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0))); | 
|  | temp_0 = s7; | 
|  | s1 = vext_s16(s0, s4, 1);  // a1 a2 a3 a4 | 
|  | s2 = vext_s16(s0, s4, 2);  // a2 a3 a4 a5 | 
|  | s3 = vext_s16(s0, s4, 3);  // a3 a4 a5 a6 | 
|  | s5 = vext_s16(s4, s7, 1);  // a5 a6 a7 a8 | 
|  | s6 = vext_s16(s4, s7, 2);  // a6 a7 a8 a9 | 
|  | s7 = vext_s16(s4, s7, 3);  // a7 a8 a9 a10 | 
|  |  | 
|  | d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | d0 = vrshl_s16(d0, horiz_const); | 
|  | d0 = vadd_s16(d0, round_offset_vec); | 
|  | s0 = s4; | 
|  | s4 = temp_0; | 
|  | if (conv_params->do_average) { | 
|  | __builtin_prefetch(d); | 
|  | __builtin_prefetch(d_u8); | 
|  |  | 
|  | res4 = vld1_u16(d); | 
|  |  | 
|  | compute_avg_4x1(res4, vreinterpret_u16_s16(d0), fwd_offset, | 
|  | bck_offset, round_offset_vec, round_bits, | 
|  | use_wtd_comp_avg, &t0); | 
|  |  | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), | 
|  | 0);  // 00 01 02 03 | 
|  | } else { | 
|  | vst1_u16(d, vreinterpret_u16_s16(d0)); | 
|  | } | 
|  |  | 
|  | s += 4; | 
|  | width -= 4; | 
|  | d += 4; | 
|  | d_u8 += 4; | 
|  | } while (width > 0); | 
|  | src_ptr += (src_stride); | 
|  | dst_ptr += (dst_stride); | 
|  | dst_u8_ptr += (dst8_stride); | 
|  | height--; | 
|  | #endif | 
|  | } while (height > 0); | 
|  | } else { | 
|  | CONV_BUF_TYPE *d_tmp; | 
|  | uint8_t *d_u8_tmp; | 
|  | int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; | 
|  | int16x8_t res0; | 
|  | uint16x8_t res8; | 
|  | const int16x8_t round_offset128 = vdupq_n_s16(round_offset); | 
|  | const int16x4_t round_offset64 = vdup_n_s16(round_offset); | 
|  | const int16x8_t shift_round_0 = vdupq_n_s16(-conv_params->round_0 + 1); | 
|  | const int16x8_t horiz_const = vdupq_n_s16(bits); | 
|  | const int16x8_t zero = vdupq_n_s16(0); | 
|  |  | 
|  | d = dst_ptr = dst; | 
|  | d_u8 = dst_u8_ptr = dst8; | 
|  | do { | 
|  | #if defined(__aarch64__) | 
|  | int16x8_t s11, s12, s13, s14; | 
|  | int16x8_t s8, s9, s10; | 
|  | int16x8_t res1, res2, res3, res4, res5, res6, res7; | 
|  | uint16x8_t res9, res10, res11; | 
|  | __builtin_prefetch(src_ptr + 0 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 1 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 2 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 3 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 4 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 5 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 6 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 7 * src_stride); | 
|  | load_u8_8x8(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); | 
|  | s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); | 
|  | s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); | 
|  |  | 
|  | width = w; | 
|  | s = src_ptr + 7; | 
|  | d = dst_ptr; | 
|  | d_u8_tmp = dst_u8_ptr; | 
|  |  | 
|  | __builtin_prefetch(dst_ptr + 0 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 1 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 2 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 3 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 4 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 5 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 6 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 7 * dst_stride); | 
|  |  | 
|  | do { | 
|  | d_u8 = d_u8_tmp; | 
|  | d_tmp = d; | 
|  |  | 
|  | load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  | s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s11 = vreinterpretq_s16_u16(vmovl_u8(t4)); | 
|  | s12 = vreinterpretq_s16_u16(vmovl_u8(t5)); | 
|  | s13 = vreinterpretq_s16_u16(vmovl_u8(t6)); | 
|  | s14 = vreinterpretq_s16_u16(vmovl_u8(t7)); | 
|  |  | 
|  | res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  |  | 
|  | res0 = vrshlq_s16(res0, horiz_const); | 
|  | res0 = vaddq_s16(res0, round_offset128); | 
|  |  | 
|  | res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | res1 = vrshlq_s16(res1, horiz_const); | 
|  | res1 = vaddq_s16(res1, round_offset128); | 
|  | res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | res2 = vrshlq_s16(res2, horiz_const); | 
|  | res2 = vaddq_s16(res2, round_offset128); | 
|  | res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | res3 = vrshlq_s16(res3, horiz_const); | 
|  | res3 = vaddq_s16(res3, round_offset128); | 
|  | res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, x_filter_tmp, | 
|  | zero, shift_round_0); | 
|  | res4 = vrshlq_s16(res4, horiz_const); | 
|  | res4 = vaddq_s16(res4, round_offset128); | 
|  | res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12, | 
|  | x_filter_tmp, zero, shift_round_0); | 
|  | res5 = vrshlq_s16(res5, horiz_const); | 
|  | res5 = vaddq_s16(res5, round_offset128); | 
|  | res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13, | 
|  | x_filter_tmp, zero, shift_round_0); | 
|  | res6 = vrshlq_s16(res6, horiz_const); | 
|  | res6 = vaddq_s16(res6, round_offset128); | 
|  | res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14, | 
|  | x_filter_tmp, zero, shift_round_0); | 
|  | res7 = vrshlq_s16(res7, horiz_const); | 
|  | res7 = vaddq_s16(res7, round_offset128); | 
|  |  | 
|  | transpose_s16_8x8(&res0, &res1, &res2, &res3, &res4, &res5, &res6, | 
|  | &res7); | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11); | 
|  | d_tmp += (dst_stride << 2); | 
|  |  | 
|  | compute_avg_8x4( | 
|  | res8, res9, res10, res11, vreinterpretq_u16_s16(res0), | 
|  | vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2), | 
|  | vreinterpretq_u16_s16(res3), fwd_offset, bck_offset, | 
|  | round_offset64, round_bits, use_wtd_comp_avg, &t0, &t1, &t2, &t3); | 
|  |  | 
|  | store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3); | 
|  | d_u8 += (dst8_stride << 2); | 
|  |  | 
|  | load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11); | 
|  | d_tmp += (dst_stride << 2); | 
|  |  | 
|  | compute_avg_8x4( | 
|  | res8, res9, res10, res11, vreinterpretq_u16_s16(res4), | 
|  | vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6), | 
|  | vreinterpretq_u16_s16(res7), fwd_offset, bck_offset, | 
|  | round_offset64, round_bits, use_wtd_comp_avg, &t0, &t1, &t2, &t3); | 
|  |  | 
|  | store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3); | 
|  | d_u8 += (dst8_stride << 2); | 
|  | } else { | 
|  | store_u16_8x8( | 
|  | d_tmp, dst_stride, vreinterpretq_u16_s16(res0), | 
|  | vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2), | 
|  | vreinterpretq_u16_s16(res3), vreinterpretq_u16_s16(res4), | 
|  | vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6), | 
|  | vreinterpretq_u16_s16(res7)); | 
|  | d_tmp += (dst_stride << 3); | 
|  | } | 
|  |  | 
|  | s0 = s8; | 
|  | s1 = s9; | 
|  | s2 = s10; | 
|  | s3 = s11; | 
|  | s4 = s12; | 
|  | s5 = s13; | 
|  | s6 = s14; | 
|  | s += 8; | 
|  | d += 8; | 
|  | width -= 8; | 
|  | d_u8_tmp += 8; | 
|  | } while (width > 0); | 
|  | src_ptr += 8 * src_stride; | 
|  | dst_ptr += 8 * dst_stride; | 
|  | dst_u8_ptr += 8 * dst8_stride; | 
|  | height -= 8; | 
|  | #else | 
|  | int16x8_t temp_0; | 
|  | __builtin_prefetch(src_ptr); | 
|  | t0 = vld1_u8(src_ptr); | 
|  | s0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7 | 
|  |  | 
|  | width = w; | 
|  | s = src_ptr + 8; | 
|  | d = dst_ptr; | 
|  | d_u8_tmp = dst_u8_ptr; | 
|  |  | 
|  | __builtin_prefetch(dst_ptr); | 
|  |  | 
|  | do { | 
|  | d_u8 = d_u8_tmp; | 
|  | d_tmp = d; | 
|  |  | 
|  | t0 = vld1_u8(s);  // a8 a9 a10 a11 a12 a13 a14 a15 | 
|  | s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | temp_0 = s0; | 
|  | s0 = s7; | 
|  |  | 
|  | s1 = vextq_s16(temp_0, s7, 1);  // a1 a2 a3 a4 a5 a6 a7 a8 | 
|  | s2 = vextq_s16(temp_0, s7, 2);  // a2 a3 a4 a5 a6 a7 a8 a9 | 
|  | s3 = vextq_s16(temp_0, s7, 3);  // a3 a4 a5 a6 a7 a8 a9 a10 | 
|  | s4 = vextq_s16(temp_0, s7, 4);  // a4 a5 a6 a7 a8 a9 a10 a11 | 
|  | s5 = vextq_s16(temp_0, s7, 5);  // a5 a6 a7 a8 a9 a10 a11 a12 | 
|  | s6 = vextq_s16(temp_0, s7, 6);  // a6 a7 a8 a9 a10 a11 a12 a13 | 
|  | s7 = vextq_s16(temp_0, s7, 7);  // a7 a8 a9 a10 a11 a12 a13 a14 | 
|  |  | 
|  | res0 = convolve8_8x8_s16(temp_0, s1, s2, s3, s4, s5, s6, s7, | 
|  | x_filter_tmp, zero, shift_round_0); | 
|  |  | 
|  | res0 = vrshlq_s16(res0, horiz_const); | 
|  | res0 = vaddq_s16(res0, round_offset128); | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | res8 = vld1q_u16(d_tmp); | 
|  | d_tmp += (dst_stride); | 
|  |  | 
|  | compute_avg_8x1(res8, vreinterpretq_u16_s16(res0), fwd_offset, | 
|  | bck_offset, round_offset64, round_bits, | 
|  | use_wtd_comp_avg, &t0); | 
|  |  | 
|  | vst1_u8(d_u8, t0); | 
|  | d_u8 += (dst8_stride); | 
|  | } else { | 
|  | vst1q_u16(d_tmp, vreinterpretq_u16_s16(res0)); | 
|  | d_tmp += (dst_stride); | 
|  | } | 
|  |  | 
|  | s += 8; | 
|  | d += 8; | 
|  | width -= 8; | 
|  | d_u8_tmp += 8; | 
|  | } while (width > 0); | 
|  | src_ptr += src_stride; | 
|  | dst_ptr += dst_stride; | 
|  | dst_u8_ptr += dst8_stride; | 
|  | height--; | 
|  | #endif | 
|  | } while (height > 0); | 
|  | } | 
|  | } | 
|  |  | 
|  | void av1_dist_wtd_convolve_y_neon(const uint8_t *src, int src_stride, | 
|  | uint8_t *dst8, int dst8_stride, int w, int h, | 
|  | const InterpFilterParams *filter_params_y, | 
|  | const int subpel_y_qn, | 
|  | ConvolveParams *conv_params) { | 
|  | assert(!(w % 4)); | 
|  | assert(!(h % 4)); | 
|  |  | 
|  | CONV_BUF_TYPE *dst = conv_params->dst; | 
|  | const int dst_stride = conv_params->dst_stride; | 
|  | const int vert_offset = filter_params_y->taps / 2 - 1; | 
|  | const int bits = FILTER_BITS - conv_params->round_0; | 
|  | const int bd = 8; | 
|  | const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; | 
|  | const int round_offset = (1 << (offset_bits - conv_params->round_1)) + | 
|  | (1 << (offset_bits - conv_params->round_1 - 1)); | 
|  | const int round_bits = | 
|  | 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; | 
|  | const uint16_t fwd_offset = conv_params->fwd_offset; | 
|  | const uint16_t bck_offset = conv_params->bck_offset; | 
|  | const int use_wtd_comp_avg = is_uneven_wtd_comp_avg(conv_params); | 
|  | const int shift_value = (conv_params->round_1 - 1 - bits); | 
|  |  | 
|  | // vertical filter | 
|  | const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( | 
|  | filter_params_y, subpel_y_qn & SUBPEL_MASK); | 
|  |  | 
|  | const uint8_t *src_ptr = src - (vert_offset * src_stride); | 
|  |  | 
|  | int16_t y_filter_tmp[8]; | 
|  | int16x8_t filter_y_coef = vld1q_s16(y_filter); | 
|  |  | 
|  | // filter coeffs are even, so downshifting by 1 to reduce intermediate | 
|  | // precision requirements. | 
|  | filter_y_coef = vshrq_n_s16(filter_y_coef, 1); | 
|  | vst1q_s16(&y_filter_tmp[0], filter_y_coef); | 
|  |  | 
|  | const uint8_t *s; | 
|  | uint8_t *d_u8; | 
|  | uint8_t *dst_u8_ptr; | 
|  | CONV_BUF_TYPE *d, *dst_ptr; | 
|  | int width, height; | 
|  |  | 
|  | s = src_ptr; | 
|  | dst_ptr = dst; | 
|  | dst_u8_ptr = dst8; | 
|  | width = w; | 
|  | height = h; | 
|  |  | 
|  | // used to get rid of multiplication = (vertical filter output sum) * | 
|  | // (1<<bits). | 
|  | assert((conv_params->round_1 - 2) >= bits); | 
|  |  | 
|  | if ((w == 4) || (h == 4)) { | 
|  | int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0; | 
|  | uint16x4_t res4; | 
|  | uint32x2_t tu0 = vdup_n_u32(0), tu1 = vdup_n_u32(0), tu2 = vdup_n_u32(0), | 
|  | tu3 = vdup_n_u32(0); | 
|  | int16x8_t u0, u1, u2, u3; | 
|  | uint8x8_t t0; | 
|  |  | 
|  | #if defined(__aarch64__) | 
|  | int16x4_t s8, s9, s10, d1, d2, d3; | 
|  | uint16x4_t res5, res6, res7; | 
|  | uint8x8_t t1; | 
|  | #endif | 
|  | const int16x4_t round_offset64 = vdup_n_s16(round_offset); | 
|  | const int16x4_t shift_vec = vdup_n_s16(-shift_value); | 
|  | const int16x4_t zero = vdup_n_s16(0); | 
|  |  | 
|  | do { | 
|  | s = src_ptr; | 
|  | d = dst_ptr; | 
|  | d_u8 = dst_u8_ptr; | 
|  | height = h; | 
|  | __builtin_prefetch(s + 0 * src_stride); | 
|  | __builtin_prefetch(s + 1 * src_stride); | 
|  | __builtin_prefetch(s + 2 * src_stride); | 
|  | __builtin_prefetch(s + 3 * src_stride); | 
|  |  | 
|  | load_unaligned_u8_4x8(s, src_stride, &tu0, &tu1, &tu2, &tu3); | 
|  |  | 
|  | u0 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu0))); | 
|  | u1 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu1))); | 
|  | u2 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu2))); | 
|  | u3 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu3))); | 
|  |  | 
|  | s0 = vget_low_s16(u0); | 
|  | s1 = vget_high_s16(u0); | 
|  | s2 = vget_low_s16(u1); | 
|  | s3 = vget_high_s16(u1); | 
|  | s4 = vget_low_s16(u2); | 
|  | s5 = vget_high_s16(u2); | 
|  | s6 = vget_low_s16(u3); | 
|  |  | 
|  | __builtin_prefetch(d + 0 * dst_stride); | 
|  | __builtin_prefetch(d + 1 * dst_stride); | 
|  | __builtin_prefetch(d + 2 * dst_stride); | 
|  | __builtin_prefetch(d + 3 * dst_stride); | 
|  |  | 
|  | s += (7 * src_stride); | 
|  | do { | 
|  | #if defined(__aarch64__) | 
|  | load_unaligned_u8_4x4(s, src_stride, &tu0, &tu1); | 
|  |  | 
|  | u0 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu0))); | 
|  | u1 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu1))); | 
|  |  | 
|  | s7 = vget_low_s16(u0); | 
|  | s8 = vget_high_s16(u0); | 
|  | s9 = vget_low_s16(u1); | 
|  | s10 = vget_high_s16(u1); | 
|  |  | 
|  | d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | d0 = vadd_s16(d0, round_offset64); | 
|  | d1 = convolve8_4x4_s16(s1, s2, s3, s4, s5, s6, s7, s8, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | d1 = vadd_s16(d1, round_offset64); | 
|  | d2 = convolve8_4x4_s16(s2, s3, s4, s5, s6, s7, s8, s9, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | d2 = vadd_s16(d2, round_offset64); | 
|  | d3 = convolve8_4x4_s16(s3, s4, s5, s6, s7, s8, s9, s10, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | d3 = vadd_s16(d3, round_offset64); | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | __builtin_prefetch(d + 0 * dst_stride); | 
|  | __builtin_prefetch(d + 1 * dst_stride); | 
|  | __builtin_prefetch(d + 2 * dst_stride); | 
|  | __builtin_prefetch(d + 3 * dst_stride); | 
|  |  | 
|  | __builtin_prefetch(d_u8 + 0 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 1 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 2 * dst8_stride); | 
|  | __builtin_prefetch(d_u8 + 3 * dst8_stride); | 
|  |  | 
|  | load_u16_4x4(d, dst_stride, &res4, &res5, &res6, &res7); | 
|  | d += (dst_stride << 2); | 
|  |  | 
|  | compute_avg_4x4(res4, res5, res6, res7, vreinterpret_u16_s16(d0), | 
|  | vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2), | 
|  | vreinterpret_u16_s16(d3), fwd_offset, bck_offset, | 
|  | round_offset64, round_bits, use_wtd_comp_avg, &t0, | 
|  | &t1); | 
|  |  | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0); | 
|  | d_u8 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 1); | 
|  | d_u8 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 0); | 
|  | d_u8 += dst8_stride; | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t1), 1); | 
|  | d_u8 += dst8_stride; | 
|  | } else { | 
|  | store_u16_4x4(d, dst_stride, vreinterpret_u16_s16(d0), | 
|  | vreinterpret_u16_s16(d1), vreinterpret_u16_s16(d2), | 
|  | vreinterpret_u16_s16(d3)); | 
|  | d += (dst_stride << 2); | 
|  | } | 
|  |  | 
|  | s0 = s4; | 
|  | s1 = s5; | 
|  | s2 = s6; | 
|  | s3 = s7; | 
|  | s4 = s8; | 
|  | s5 = s9; | 
|  | s6 = s10; | 
|  |  | 
|  | s += (src_stride << 2); | 
|  | height -= 4; | 
|  | #else | 
|  | load_unaligned_u8_4x1(s, src_stride, &tu0); | 
|  | u0 = vreinterpretq_s16_u16(vmovl_u8(vreinterpret_u8_u32(tu0))); | 
|  | s7 = vget_low_s16(u0); | 
|  |  | 
|  | d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  |  | 
|  | d0 = vadd_s16(d0, round_offset64); | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | __builtin_prefetch(d); | 
|  |  | 
|  | res4 = vld1_u16(d); | 
|  | d += (dst_stride); | 
|  |  | 
|  | compute_avg_4x1(res4, vreinterpret_u16_s16(d0), fwd_offset, | 
|  | bck_offset, round_offset64, round_bits, | 
|  | use_wtd_comp_avg, &t0); | 
|  |  | 
|  | vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(t0), 0); | 
|  | d_u8 += dst8_stride; | 
|  | } else { | 
|  | vst1_u16(d, vreinterpret_u16_s16(d0)); | 
|  | d += (dst_stride); | 
|  | } | 
|  |  | 
|  | s0 = s1; | 
|  | s1 = s2; | 
|  | s2 = s3; | 
|  | s3 = s4; | 
|  | s4 = s5; | 
|  | s5 = s6; | 
|  | s6 = s7; | 
|  |  | 
|  | s += (src_stride); | 
|  | height--; | 
|  | #endif | 
|  | } while (height > 0); | 
|  | src_ptr += 4; | 
|  | dst_ptr += 4; | 
|  | dst_u8_ptr += 4; | 
|  | width -= 4; | 
|  | } while (width > 0); | 
|  | } else { | 
|  | CONV_BUF_TYPE *d_tmp; | 
|  | int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; | 
|  | int16x8_t res0; | 
|  | uint16x8_t res8; | 
|  | uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7; | 
|  | const int16x8_t round_offset128 = vdupq_n_s16(round_offset); | 
|  | const int16x8_t shift_vec = vdupq_n_s16(-shift_value); | 
|  | const int16x4_t round_offset64 = vdup_n_s16(round_offset); | 
|  | const int16x8_t zero = vdupq_n_s16(0); | 
|  | #if defined(__aarch64__) | 
|  | int16x8_t s8, s9, s10, s11, s12, s13, s14; | 
|  | int16x8_t res1, res2, res3, res4, res5, res6, res7; | 
|  | uint16x8_t res10, res11, res9; | 
|  | #endif | 
|  | dst_ptr = dst; | 
|  | dst_u8_ptr = dst8; | 
|  | do { | 
|  | __builtin_prefetch(src_ptr + 0 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 1 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 2 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 3 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 4 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 5 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 6 * src_stride); | 
|  | __builtin_prefetch(src_ptr + 7 * src_stride); | 
|  | load_u8_8x8(src_ptr, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  |  | 
|  | s0 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | s1 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | s2 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | s3 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s4 = vreinterpretq_s16_u16(vmovl_u8(t4)); | 
|  | s5 = vreinterpretq_s16_u16(vmovl_u8(t5)); | 
|  | s6 = vreinterpretq_s16_u16(vmovl_u8(t6)); | 
|  |  | 
|  | height = h; | 
|  | s = src_ptr + (7 * src_stride); | 
|  | d_tmp = dst_ptr; | 
|  | d_u8 = dst_u8_ptr; | 
|  |  | 
|  | do { | 
|  | #if defined(__aarch64__) | 
|  | load_u8_8x8(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7); | 
|  |  | 
|  | s7 = vreinterpretq_s16_u16(vmovl_u8(t0)); | 
|  | s8 = vreinterpretq_s16_u16(vmovl_u8(t1)); | 
|  | s9 = vreinterpretq_s16_u16(vmovl_u8(t2)); | 
|  | s10 = vreinterpretq_s16_u16(vmovl_u8(t3)); | 
|  | s11 = vreinterpretq_s16_u16(vmovl_u8(t4)); | 
|  | s12 = vreinterpretq_s16_u16(vmovl_u8(t5)); | 
|  | s13 = vreinterpretq_s16_u16(vmovl_u8(t6)); | 
|  | s14 = vreinterpretq_s16_u16(vmovl_u8(t7)); | 
|  |  | 
|  | __builtin_prefetch(dst_ptr + 0 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 1 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 2 * dst_stride); | 
|  | __builtin_prefetch(dst_ptr + 3 * dst_stride); | 
|  |  | 
|  | res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | res0 = vaddq_s16(res0, round_offset128); | 
|  | res1 = convolve8_8x8_s16(s1, s2, s3, s4, s5, s6, s7, s8, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | res1 = vaddq_s16(res1, round_offset128); | 
|  | res2 = convolve8_8x8_s16(s2, s3, s4, s5, s6, s7, s8, s9, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | res2 = vaddq_s16(res2, round_offset128); | 
|  | res3 = convolve8_8x8_s16(s3, s4, s5, s6, s7, s8, s9, s10, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | res3 = vaddq_s16(res3, round_offset128); | 
|  | res4 = convolve8_8x8_s16(s4, s5, s6, s7, s8, s9, s10, s11, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | res4 = vaddq_s16(res4, round_offset128); | 
|  | res5 = convolve8_8x8_s16(s5, s6, s7, s8, s9, s10, s11, s12, | 
|  | y_filter_tmp, zero, shift_vec); | 
|  | res5 = vaddq_s16(res5, round_offset128); | 
|  | res6 = convolve8_8x8_s16(s6, s7, s8, s9, s10, s11, s12, s13, | 
|  | y_filter_tmp, zero, shift_vec); | 
|  | res6 = vaddq_s16(res6, round_offset128); | 
|  | res7 = convolve8_8x8_s16(s7, s8, s9, s10, s11, s12, s13, s14, | 
|  | y_filter_tmp, zero, shift_vec); | 
|  | res7 = vaddq_s16(res7, round_offset128); | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | __builtin_prefetch(d_tmp + 0 * dst8_stride); | 
|  | __builtin_prefetch(d_tmp + 1 * dst8_stride); | 
|  | __builtin_prefetch(d_tmp + 2 * dst8_stride); | 
|  | __builtin_prefetch(d_tmp + 3 * dst8_stride); | 
|  |  | 
|  | load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11); | 
|  | d_tmp += (dst_stride << 2); | 
|  |  | 
|  | compute_avg_8x4( | 
|  | res8, res9, res10, res11, vreinterpretq_u16_s16(res0), | 
|  | vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2), | 
|  | vreinterpretq_u16_s16(res3), fwd_offset, bck_offset, | 
|  | round_offset64, round_bits, use_wtd_comp_avg, &t0, &t1, &t2, &t3); | 
|  |  | 
|  | store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3); | 
|  | d_u8 += (dst8_stride << 2); | 
|  |  | 
|  | load_u16_8x4(d_tmp, dst_stride, &res8, &res9, &res10, &res11); | 
|  | d_tmp += (dst_stride << 2); | 
|  |  | 
|  | compute_avg_8x4( | 
|  | res8, res9, res10, res11, vreinterpretq_u16_s16(res4), | 
|  | vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6), | 
|  | vreinterpretq_u16_s16(res7), fwd_offset, bck_offset, | 
|  | round_offset64, round_bits, use_wtd_comp_avg, &t0, &t1, &t2, &t3); | 
|  |  | 
|  | store_u8_8x4(d_u8, dst8_stride, t0, t1, t2, t3); | 
|  | d_u8 += (dst8_stride << 2); | 
|  | } else { | 
|  | store_u16_8x8( | 
|  | d_tmp, dst_stride, vreinterpretq_u16_s16(res0), | 
|  | vreinterpretq_u16_s16(res1), vreinterpretq_u16_s16(res2), | 
|  | vreinterpretq_u16_s16(res3), vreinterpretq_u16_s16(res4), | 
|  | vreinterpretq_u16_s16(res5), vreinterpretq_u16_s16(res6), | 
|  | vreinterpretq_u16_s16(res7)); | 
|  | d_tmp += (dst_stride << 3); | 
|  | } | 
|  |  | 
|  | s0 = s8; | 
|  | s1 = s9; | 
|  | s2 = s10; | 
|  | s3 = s11; | 
|  | s4 = s12; | 
|  | s5 = s13; | 
|  | s6 = s14; | 
|  | s += (8 * src_stride); | 
|  | height -= 8; | 
|  | #else | 
|  | s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s))); | 
|  |  | 
|  | __builtin_prefetch(dst_ptr); | 
|  |  | 
|  | res0 = convolve8_8x8_s16(s0, s1, s2, s3, s4, s5, s6, s7, y_filter_tmp, | 
|  | zero, shift_vec); | 
|  | res0 = vaddq_s16(res0, round_offset128); | 
|  |  | 
|  | s0 = s1; | 
|  | s1 = s2; | 
|  | s2 = s3; | 
|  | s3 = s4; | 
|  | s4 = s5; | 
|  | s5 = s6; | 
|  | s6 = s7; | 
|  |  | 
|  | if (conv_params->do_average) { | 
|  | __builtin_prefetch(d_tmp); | 
|  |  | 
|  | res8 = vld1q_u16(d_tmp); | 
|  | d_tmp += (dst_stride); | 
|  |  | 
|  | compute_avg_8x1(res8, vreinterpretq_u16_s16(res0), fwd_offset, | 
|  | bck_offset, round_offset64, round_bits, | 
|  | use_wtd_comp_avg, &t0); | 
|  |  | 
|  | vst1_u8(d_u8, t0); | 
|  | d_u8 += (dst8_stride); | 
|  | } else { | 
|  | vst1q_u16(d_tmp, vreinterpretq_u16_s16(res0)); | 
|  | d_tmp += dst_stride; | 
|  | } | 
|  |  | 
|  | s += (src_stride); | 
|  | height--; | 
|  | #endif | 
|  | } while (height > 0); | 
|  | src_ptr += 8; | 
|  | dst_ptr += 8; | 
|  | dst_u8_ptr += 8; | 
|  | width -= 8; | 
|  | } while (width > 0); | 
|  | } | 
|  | } |