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| -rw-r--r-- | third_party/aom/av1/common/arm/convolve_neon.h | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/convolve_neon.h b/third_party/aom/av1/common/arm/convolve_neon.h new file mode 100644 index 0000000000..9fbf8aa12f --- /dev/null +++ b/third_party/aom/av1/common/arm/convolve_neon.h @@ -0,0 +1,538 @@ +/* + * Copyright (c) 2018, Alliance for Open Media. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef AOM_AV1_COMMON_ARM_CONVOLVE_NEON_H_ +#define AOM_AV1_COMMON_ARM_CONVOLVE_NEON_H_ + +#include <arm_neon.h> + +#include "config/aom_config.h" + +#include "aom_dsp/arm/mem_neon.h" +#include "av1/common/convolve.h" +#include "av1/common/filter.h" + +static INLINE int32x4_t +convolve12_4_2d_v(const int16x4_t s0, const int16x4_t s1, const int16x4_t s2, + const int16x4_t s3, const int16x4_t s4, const int16x4_t s5, + const int16x4_t s6, const int16x4_t s7, const int16x4_t s8, + const int16x4_t s9, const int16x4_t s10, const int16x4_t s11, + const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11) { + const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); + const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); + + int32x4_t sum = vmull_lane_s16(s0, y_filter_0_3, 0); + sum = vmlal_lane_s16(sum, s1, y_filter_0_3, 1); + sum = vmlal_lane_s16(sum, s2, y_filter_0_3, 2); + sum = vmlal_lane_s16(sum, s3, y_filter_0_3, 3); + sum = vmlal_lane_s16(sum, s4, y_filter_4_7, 0); + sum = vmlal_lane_s16(sum, s5, y_filter_4_7, 1); + sum = vmlal_lane_s16(sum, s6, y_filter_4_7, 2); + sum = vmlal_lane_s16(sum, s7, y_filter_4_7, 3); + sum = vmlal_lane_s16(sum, s8, y_filter_8_11, 0); + sum = vmlal_lane_s16(sum, s9, y_filter_8_11, 1); + sum = vmlal_lane_s16(sum, s10, y_filter_8_11, 2); + sum = vmlal_lane_s16(sum, s11, y_filter_8_11, 3); + + return sum; +} + +static INLINE uint8x8_t +convolve12_8_2d_v(const int16x8_t s0, const int16x8_t s1, const int16x8_t s2, + const int16x8_t s3, const int16x8_t s4, const int16x8_t s5, + const int16x8_t s6, const int16x8_t s7, const int16x8_t s8, + const int16x8_t s9, const int16x8_t s10, const int16x8_t s11, + const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11, + const int16x8_t sub_const) { + const int16x4_t y_filter_0_3 = vget_low_s16(y_filter_0_7); + const int16x4_t y_filter_4_7 = vget_high_s16(y_filter_0_7); + + int32x4_t sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_0_3, 0); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_0_3, 1); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_0_3, 2); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_0_3, 3); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_4_7, 0); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_4_7, 1); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_4_7, 2); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_4_7, 3); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s8), y_filter_8_11, 0); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s9), y_filter_8_11, 1); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s10), y_filter_8_11, 2); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s11), y_filter_8_11, 3); + + int32x4_t sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_0_3, 0); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_0_3, 1); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_0_3, 2); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_0_3, 3); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_4_7, 0); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_4_7, 1); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_4_7, 2); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_4_7, 3); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s8), y_filter_8_11, 0); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s9), y_filter_8_11, 1); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s10), y_filter_8_11, 2); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s11), y_filter_8_11, 3); + + int16x8_t res = + vcombine_s16(vqrshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS), + vqrshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS)); + res = vsubq_s16(res, sub_const); + + return vqmovun_s16(res); +} + +static INLINE void convolve_2d_sr_vert_12tap_neon( + int16_t *src_ptr, int src_stride, uint8_t *dst_ptr, int dst_stride, int w, + int h, const int16x8_t y_filter_0_7, const int16x4_t y_filter_8_11) { + const int bd = 8; + const int16x8_t sub_const = vdupq_n_s16(1 << (bd - 1)); + + if (w <= 4) { + int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + load_s16_4x11(src_ptr, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, + &s8, &s9, &s10); + src_ptr += 11 * src_stride; + + do { + int16x4_t s11, s12, s13, s14; + load_s16_4x4(src_ptr, src_stride, &s11, &s12, &s13, &s14); + + int32x4_t d0 = convolve12_4_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, + s10, s11, y_filter_0_7, y_filter_8_11); + int32x4_t d1 = convolve12_4_2d_v(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, + s11, s12, y_filter_0_7, y_filter_8_11); + int32x4_t d2 = convolve12_4_2d_v(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, + s12, s13, y_filter_0_7, y_filter_8_11); + int32x4_t d3 = + convolve12_4_2d_v(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, + y_filter_0_7, y_filter_8_11); + + int16x8_t dd01 = + vcombine_s16(vqrshrn_n_s32(d0, 2 * FILTER_BITS - ROUND0_BITS), + vqrshrn_n_s32(d1, 2 * FILTER_BITS - ROUND0_BITS)); + int16x8_t dd23 = + vcombine_s16(vqrshrn_n_s32(d2, 2 * FILTER_BITS - ROUND0_BITS), + vqrshrn_n_s32(d3, 2 * FILTER_BITS - ROUND0_BITS)); + + dd01 = vsubq_s16(dd01, sub_const); + dd23 = vsubq_s16(dd23, sub_const); + + uint8x8_t d01 = vqmovun_s16(dd01); + uint8x8_t d23 = vqmovun_s16(dd23); + + store_u8x4_strided_x2(dst_ptr + 0 * dst_stride, dst_stride, d01); + store_u8x4_strided_x2(dst_ptr + 2 * dst_stride, dst_stride, d23); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + s7 = s11; + s8 = s12; + s9 = s13; + s10 = s14; + src_ptr += 4 * src_stride; + dst_ptr += 4 * dst_stride; + h -= 4; + } while (h != 0); + + } else { + do { + int height = h; + int16_t *s = src_ptr; + uint8_t *d = dst_ptr; + + int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10; + load_s16_8x11(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7, &s8, + &s9, &s10); + s += 11 * src_stride; + + do { + int16x8_t s11, s12, s13, s14; + load_s16_8x4(s, src_stride, &s11, &s12, &s13, &s14); + + uint8x8_t d0 = + convolve12_8_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, + y_filter_0_7, y_filter_8_11, sub_const); + uint8x8_t d1 = + convolve12_8_2d_v(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, + y_filter_0_7, y_filter_8_11, sub_const); + uint8x8_t d2 = + convolve12_8_2d_v(s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, + s13, y_filter_0_7, y_filter_8_11, sub_const); + uint8x8_t d3 = + convolve12_8_2d_v(s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, + s14, y_filter_0_7, y_filter_8_11, sub_const); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + s7 = s11; + s8 = s12; + s9 = s13; + s10 = s14; + s += 4 * src_stride; + d += 4 * dst_stride; + height -= 4; + } while (height != 0); + src_ptr += 8; + dst_ptr += 8; + w -= 8; + } while (w != 0); + } +} + +static INLINE int16x4_t convolve8_4_2d_v(const int16x4_t s0, const int16x4_t s1, + const int16x4_t s2, const int16x4_t s3, + const int16x4_t s4, const int16x4_t s5, + const int16x4_t s6, const int16x4_t s7, + const int16x8_t y_filter) { + const int16x4_t y_filter_lo = vget_low_s16(y_filter); + const int16x4_t y_filter_hi = vget_high_s16(y_filter); + + int32x4_t sum = vmull_lane_s16(s0, y_filter_lo, 0); + sum = vmlal_lane_s16(sum, s1, y_filter_lo, 1); + sum = vmlal_lane_s16(sum, s2, y_filter_lo, 2); + sum = vmlal_lane_s16(sum, s3, y_filter_lo, 3); + sum = vmlal_lane_s16(sum, s4, y_filter_hi, 0); + sum = vmlal_lane_s16(sum, s5, y_filter_hi, 1); + sum = vmlal_lane_s16(sum, s6, y_filter_hi, 2); + sum = vmlal_lane_s16(sum, s7, y_filter_hi, 3); + + return vqrshrn_n_s32(sum, 2 * FILTER_BITS - ROUND0_BITS); +} + +static INLINE uint8x8_t convolve8_8_2d_v(const int16x8_t s0, const int16x8_t s1, + const int16x8_t s2, const int16x8_t s3, + const int16x8_t s4, const int16x8_t s5, + const int16x8_t s6, const int16x8_t s7, + const int16x8_t y_filter, + const int16x8_t sub_const) { + const int16x4_t y_filter_lo = vget_low_s16(y_filter); + const int16x4_t y_filter_hi = vget_high_s16(y_filter); + + int32x4_t sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_lo, 0); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_lo, 1); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_lo, 2); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_lo, 3); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_hi, 0); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_hi, 1); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), y_filter_hi, 2); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), y_filter_hi, 3); + + int32x4_t sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_lo, 0); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_lo, 1); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_lo, 2); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_lo, 3); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_hi, 0); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_hi, 1); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), y_filter_hi, 2); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), y_filter_hi, 3); + + int16x8_t res = + vcombine_s16(vqrshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS), + vqrshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS)); + res = vsubq_s16(res, sub_const); + + return vqmovun_s16(res); +} + +static INLINE void convolve_2d_sr_vert_8tap_neon(int16_t *src_ptr, + int src_stride, + uint8_t *dst_ptr, + int dst_stride, int w, int h, + const int16x8_t y_filter) { + const int bd = 8; + const int16x8_t sub_const = vdupq_n_s16(1 << (bd - 1)); + + if (w <= 4) { + int16x4_t s0, s1, s2, s3, s4, s5, s6; + load_s16_4x7(src_ptr, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); + src_ptr += 7 * src_stride; + + do { +#if AOM_ARCH_AARCH64 + int16x4_t s7, s8, s9, s10; + load_s16_4x4(src_ptr, src_stride, &s7, &s8, &s9, &s10); + + int16x4_t d0 = convolve8_4_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); + int16x4_t d1 = convolve8_4_2d_v(s1, s2, s3, s4, s5, s6, s7, s8, y_filter); + int16x4_t d2 = convolve8_4_2d_v(s2, s3, s4, s5, s6, s7, s8, s9, y_filter); + int16x4_t d3 = + convolve8_4_2d_v(s3, s4, s5, s6, s7, s8, s9, s10, y_filter); + + uint8x8_t d01 = vqmovun_s16(vsubq_s16(vcombine_s16(d0, d1), sub_const)); + uint8x8_t d23 = vqmovun_s16(vsubq_s16(vcombine_s16(d2, d3), sub_const)); + + store_u8x4_strided_x2(dst_ptr + 0 * dst_stride, dst_stride, d01); + store_u8x4_strided_x2(dst_ptr + 2 * dst_stride, dst_stride, d23); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + src_ptr += 4 * src_stride; + dst_ptr += 4 * dst_stride; + h -= 4; +#else // !AOM_ARCH_AARCH64 + int16x4_t s7 = vld1_s16(src_ptr); + int16x4_t d0 = convolve8_4_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, y_filter); + uint8x8_t d01 = + vqmovun_s16(vsubq_s16(vcombine_s16(d0, vdup_n_s16(0)), sub_const)); + + store_u8_4x1(dst_ptr, d01); + + s0 = s1; + s1 = s2; + s2 = s3; + s3 = s4; + s4 = s5; + s5 = s6; + s6 = s7; + src_ptr += src_stride; + dst_ptr += dst_stride; + h--; +#endif // AOM_ARCH_AARCH64 + } while (h != 0); + } else { + // Width is a multiple of 8 and height is a multiple of 4. + do { + int height = h; + int16_t *s = src_ptr; + uint8_t *d = dst_ptr; + + int16x8_t s0, s1, s2, s3, s4, s5, s6; + load_s16_8x7(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6); + s += 7 * src_stride; + + do { +#if AOM_ARCH_AARCH64 + int16x8_t s7, s8, s9, s10; + load_s16_8x4(s, src_stride, &s7, &s8, &s9, &s10); + + uint8x8_t d0 = convolve8_8_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, + y_filter, sub_const); + uint8x8_t d1 = convolve8_8_2d_v(s1, s2, s3, s4, s5, s6, s7, s8, + y_filter, sub_const); + uint8x8_t d2 = convolve8_8_2d_v(s2, s3, s4, s5, s6, s7, s8, s9, + y_filter, sub_const); + uint8x8_t d3 = convolve8_8_2d_v(s3, s4, s5, s6, s7, s8, s9, s10, + y_filter, sub_const); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s5 = s9; + s6 = s10; + s += 4 * src_stride; + d += 4 * dst_stride; + height -= 4; +#else // !AOM_ARCH_AARCH64 + int16x8_t s7 = vld1q_s16(s); + uint8x8_t d0 = convolve8_8_2d_v(s0, s1, s2, s3, s4, s5, s6, s7, + y_filter, sub_const); + vst1_u8(d, d0); + + s0 = s1; + s1 = s2; + s2 = s3; + s3 = s4; + s4 = s5; + s5 = s6; + s6 = s7; + s += src_stride; + d += dst_stride; + height--; +#endif // AOM_ARCH_AARCH64 + } while (height != 0); + src_ptr += 8; + dst_ptr += 8; + w -= 8; + } while (w != 0); + } +} + +static INLINE int16x4_t convolve6_4_2d_v(const int16x4_t s0, const int16x4_t s1, + const int16x4_t s2, const int16x4_t s3, + const int16x4_t s4, const int16x4_t s5, + const int16x8_t y_filter) { + const int16x4_t y_filter_lo = vget_low_s16(y_filter); + const int16x4_t y_filter_hi = vget_high_s16(y_filter); + + int32x4_t sum = vmull_lane_s16(s0, y_filter_lo, 1); + sum = vmlal_lane_s16(sum, s1, y_filter_lo, 2); + sum = vmlal_lane_s16(sum, s2, y_filter_lo, 3); + sum = vmlal_lane_s16(sum, s3, y_filter_hi, 0); + sum = vmlal_lane_s16(sum, s4, y_filter_hi, 1); + sum = vmlal_lane_s16(sum, s5, y_filter_hi, 2); + + return vqrshrn_n_s32(sum, 2 * FILTER_BITS - ROUND0_BITS); +} + +static INLINE uint8x8_t convolve6_8_2d_v(const int16x8_t s0, const int16x8_t s1, + const int16x8_t s2, const int16x8_t s3, + const int16x8_t s4, const int16x8_t s5, + const int16x8_t y_filter, + const int16x8_t sub_const) { + const int16x4_t y_filter_lo = vget_low_s16(y_filter); + const int16x4_t y_filter_hi = vget_high_s16(y_filter); + + int32x4_t sum0 = vmull_lane_s16(vget_low_s16(s0), y_filter_lo, 1); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), y_filter_lo, 2); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), y_filter_lo, 3); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), y_filter_hi, 0); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), y_filter_hi, 1); + sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), y_filter_hi, 2); + + int32x4_t sum1 = vmull_lane_s16(vget_high_s16(s0), y_filter_lo, 1); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), y_filter_lo, 2); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), y_filter_lo, 3); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), y_filter_hi, 0); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), y_filter_hi, 1); + sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), y_filter_hi, 2); + + int16x8_t res = + vcombine_s16(vqrshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS), + vqrshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS)); + res = vsubq_s16(res, sub_const); + + return vqmovun_s16(res); +} + +static INLINE void convolve_2d_sr_vert_6tap_neon(int16_t *src_ptr, + int src_stride, + uint8_t *dst_ptr, + int dst_stride, int w, int h, + const int16x8_t y_filter) { + const int bd = 8; + const int16x8_t sub_const = vdupq_n_s16(1 << (bd - 1)); + + if (w <= 4) { + int16x4_t s0, s1, s2, s3, s4; + load_s16_4x5(src_ptr, src_stride, &s0, &s1, &s2, &s3, &s4); + src_ptr += 5 * src_stride; + + do { +#if AOM_ARCH_AARCH64 + int16x4_t s5, s6, s7, s8; + load_s16_4x4(src_ptr, src_stride, &s5, &s6, &s7, &s8); + + int16x4_t d0 = convolve6_4_2d_v(s0, s1, s2, s3, s4, s5, y_filter); + int16x4_t d1 = convolve6_4_2d_v(s1, s2, s3, s4, s5, s6, y_filter); + int16x4_t d2 = convolve6_4_2d_v(s2, s3, s4, s5, s6, s7, y_filter); + int16x4_t d3 = convolve6_4_2d_v(s3, s4, s5, s6, s7, s8, y_filter); + + uint8x8_t d01 = vqmovun_s16(vsubq_s16(vcombine_s16(d0, d1), sub_const)); + uint8x8_t d23 = vqmovun_s16(vsubq_s16(vcombine_s16(d2, d3), sub_const)); + + store_u8x4_strided_x2(dst_ptr + 0 * dst_stride, dst_stride, d01); + store_u8x4_strided_x2(dst_ptr + 2 * dst_stride, dst_stride, d23); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + src_ptr += 4 * src_stride; + dst_ptr += 4 * dst_stride; + h -= 4; +#else // !AOM_ARCH_AARCH64 + int16x4_t s5 = vld1_s16(src_ptr); + int16x4_t d0 = convolve6_4_2d_v(s0, s1, s2, s3, s4, s5, y_filter); + uint8x8_t d01 = + vqmovun_s16(vsubq_s16(vcombine_s16(d0, vdup_n_s16(0)), sub_const)); + + store_u8_4x1(dst_ptr, d01); + + s0 = s1; + s1 = s2; + s2 = s3; + s3 = s4; + s4 = s5; + src_ptr += src_stride; + dst_ptr += dst_stride; + h--; +#endif // AOM_ARCH_AARCH64 + } while (h != 0); + } else { + // Width is a multiple of 8 and height is a multiple of 4. + do { + int height = h; + int16_t *s = src_ptr; + uint8_t *d = dst_ptr; + + int16x8_t s0, s1, s2, s3, s4; + load_s16_8x5(s, src_stride, &s0, &s1, &s2, &s3, &s4); + s += 5 * src_stride; + + do { +#if AOM_ARCH_AARCH64 + int16x8_t s5, s6, s7, s8; + load_s16_8x4(s, src_stride, &s5, &s6, &s7, &s8); + + uint8x8_t d0 = + convolve6_8_2d_v(s0, s1, s2, s3, s4, s5, y_filter, sub_const); + uint8x8_t d1 = + convolve6_8_2d_v(s1, s2, s3, s4, s5, s6, y_filter, sub_const); + uint8x8_t d2 = + convolve6_8_2d_v(s2, s3, s4, s5, s6, s7, y_filter, sub_const); + uint8x8_t d3 = + convolve6_8_2d_v(s3, s4, s5, s6, s7, s8, y_filter, sub_const); + + store_u8_8x4(d, dst_stride, d0, d1, d2, d3); + + s0 = s4; + s1 = s5; + s2 = s6; + s3 = s7; + s4 = s8; + s += 4 * src_stride; + d += 4 * dst_stride; + height -= 4; +#else // !AOM_ARCH_AARCH64 + int16x8_t s5 = vld1q_s16(s); + uint8x8_t d0 = + convolve6_8_2d_v(s0, s1, s2, s3, s4, s5, y_filter, sub_const); + vst1_u8(d, d0); + + s0 = s1; + s1 = s2; + s2 = s3; + s3 = s4; + s4 = s5; + s += src_stride; + d += dst_stride; + height--; +#endif // AOM_ARCH_AARCH64 + } while (height != 0); + src_ptr += 8; + dst_ptr += 8; + w -= 8; + } while (w != 0); + } +} + +#endif // AOM_AV1_COMMON_ARM_CONVOLVE_NEON_H_ |