| /* |
| * Copyright (c) 2024, Alliance for Open Media. All rights reserved. |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #ifndef AOM_AV1_COMMON_ARM_CONVOLVE_SCALE_NEON_H_ |
| #define AOM_AV1_COMMON_ARM_CONVOLVE_SCALE_NEON_H_ |
| |
| #include <assert.h> |
| #include <arm_neon.h> |
| |
| #include "config/aom_config.h" |
| #include "config/av1_rtcd.h" |
| |
| #include "aom_dsp/arm/mem_neon.h" |
| #include "aom_dsp/arm/transpose_neon.h" |
| |
| static INLINE int16x4_t compound_convolve8_4_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 filter, |
| const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum = offset_const; |
| sum = vmlal_lane_s16(sum, s0, filter_0_3, 0); |
| sum = vmlal_lane_s16(sum, s1, filter_0_3, 1); |
| sum = vmlal_lane_s16(sum, s2, filter_0_3, 2); |
| sum = vmlal_lane_s16(sum, s3, filter_0_3, 3); |
| sum = vmlal_lane_s16(sum, s4, filter_4_7, 0); |
| sum = vmlal_lane_s16(sum, s5, filter_4_7, 1); |
| sum = vmlal_lane_s16(sum, s6, filter_4_7, 2); |
| sum = vmlal_lane_s16(sum, s7, filter_4_7, 3); |
| |
| return vshrn_n_s32(sum, COMPOUND_ROUND1_BITS); |
| } |
| |
| static INLINE int16x8_t compound_convolve8_8_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 filter, |
| const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum0 = offset_const; |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s0), filter_0_3, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), filter_0_3, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), filter_0_3, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), filter_0_3, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), filter_4_7, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), filter_4_7, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), filter_4_7, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), filter_4_7, 3); |
| |
| int32x4_t sum1 = offset_const; |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s0), filter_0_3, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), filter_0_3, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), filter_0_3, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), filter_0_3, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), filter_4_7, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), filter_4_7, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), filter_4_7, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), filter_4_7, 3); |
| |
| int16x4_t res0 = vshrn_n_s32(sum0, COMPOUND_ROUND1_BITS); |
| int16x4_t res1 = vshrn_n_s32(sum1, COMPOUND_ROUND1_BITS); |
| |
| return vcombine_s16(res0, res1); |
| } |
| |
| static INLINE void compound_convolve_vert_scale_8tap_neon( |
| const int16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w, |
| int h, const int16_t *y_filter, int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| // A shim of 1 << (COMPOUND_ROUND1_BITS - 1) enables us to use |
| // non-rounding shifts - which are generally faster than rounding shifts on |
| // modern CPUs. |
| const int32x4_t vert_offset = |
| vdupq_n_s32((1 << offset_bits) + (1 << (COMPOUND_ROUND1_BITS - 1))); |
| |
| int y_qn = subpel_y_qn; |
| |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_4x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| int16x4_t d0 = compound_convolve8_4_v(s0, s1, s2, s3, s4, s5, s6, s7, |
| filter, vert_offset); |
| |
| vst1_u16(dst, vreinterpret_u16_s16(d0)); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int width = w; |
| uint16_t *d = dst; |
| |
| do { |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_8x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| int16x8_t d0 = compound_convolve8_8_v(s0, s1, s2, s3, s4, s5, s6, s7, |
| filter, vert_offset); |
| |
| vst1q_u16(d, vreinterpretq_u16_s16(d0)); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width != 0); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE void compound_avg_convolve_vert_scale_8tap_neon( |
| const int16_t *src, int src_stride, uint8_t *dst8, int dst8_stride, |
| uint16_t *dst16, int dst16_stride, int w, int h, const int16_t *y_filter, |
| int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| // A shim of 1 << (COMPOUND_ROUND1_BITS - 1) enables us to use |
| // non-rounding shifts - which are generally faster than rounding shifts |
| // on modern CPUs. |
| const int32_t vert_offset_bits = |
| (1 << offset_bits) + (1 << (COMPOUND_ROUND1_BITS - 1)); |
| // For the averaging code path substract round offset and convolve round. |
| const int32_t avg_offset_bits = (1 << (offset_bits + 1)) + (1 << offset_bits); |
| const int32x4_t vert_offset = vdupq_n_s32(vert_offset_bits - avg_offset_bits); |
| |
| int y_qn = subpel_y_qn; |
| |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_4x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| int16x4_t d0 = compound_convolve8_4_v(s0, s1, s2, s3, s4, s5, s6, s7, |
| filter, vert_offset); |
| |
| int16x4_t dd0 = vreinterpret_s16_u16(vld1_u16(dst16)); |
| |
| int16x4_t avg = vhadd_s16(dd0, d0); |
| int16x8_t d0_s16 = vcombine_s16(avg, vdup_n_s16(0)); |
| |
| uint8x8_t d0_u8 = vqrshrun_n_s16( |
| d0_s16, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS); |
| |
| store_u8_4x1(dst8, d0_u8); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int width = w; |
| uint8_t *dst8_ptr = dst8; |
| uint16_t *dst16_ptr = dst16; |
| |
| do { |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_8x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| int16x8_t d0 = compound_convolve8_8_v(s0, s1, s2, s3, s4, s5, s6, s7, |
| filter, vert_offset); |
| |
| int16x8_t dd0 = vreinterpretq_s16_u16(vld1q_u16(dst16_ptr)); |
| |
| int16x8_t avg = vhaddq_s16(dd0, d0); |
| |
| uint8x8_t d0_u8 = vqrshrun_n_s16( |
| avg, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS); |
| |
| vst1_u8(dst8_ptr, d0_u8); |
| |
| s += 8; |
| dst8_ptr += 8; |
| dst16_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE void compound_dist_wtd_convolve_vert_scale_8tap_neon( |
| const int16_t *src, int src_stride, uint8_t *dst8, int dst8_stride, |
| uint16_t *dst16, int dst16_stride, int w, int h, const int16_t *y_filter, |
| ConvolveParams *conv_params, int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| int y_qn = subpel_y_qn; |
| // A shim of 1 << (COMPOUND_ROUND1_BITS - 1) enables us to use |
| // non-rounding shifts - which are generally faster than rounding shifts on |
| // modern CPUs. |
| const int32x4_t vert_offset = |
| vdupq_n_s32((1 << offset_bits) + (1 << (COMPOUND_ROUND1_BITS - 1))); |
| // For the weighted averaging code path we have to substract round offset and |
| // convolve round. The shim of 1 << (2 * FILTER_BITS - ROUND0_BITS - |
| // COMPOUND_ROUND1_BITS - 1) enables us to use non-rounding shifts. The |
| // additional shift by DIST_PRECISION_BITS is needed in order to merge two |
| // shift calculations into one. |
| const int32x4_t dist_wtd_offset = vdupq_n_s32( |
| (1 << (2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS - 1 + |
| DIST_PRECISION_BITS)) - |
| (1 << (offset_bits - COMPOUND_ROUND1_BITS + DIST_PRECISION_BITS)) - |
| (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1 + DIST_PRECISION_BITS))); |
| const int16x4_t bck_offset = vdup_n_s16(conv_params->bck_offset); |
| const int16x4_t fwd_offset = vdup_n_s16(conv_params->fwd_offset); |
| |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_4x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| int16x4_t d0 = compound_convolve8_4_v(s0, s1, s2, s3, s4, s5, s6, s7, |
| filter, vert_offset); |
| |
| int16x4_t dd0 = vreinterpret_s16_u16(vld1_u16(dst16)); |
| |
| int32x4_t dst_wtd_avg = vmlal_s16(dist_wtd_offset, bck_offset, d0); |
| dst_wtd_avg = vmlal_s16(dst_wtd_avg, fwd_offset, dd0); |
| |
| int16x4_t d0_s16 = vshrn_n_s32( |
| dst_wtd_avg, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS + |
| DIST_PRECISION_BITS); |
| |
| uint8x8_t d0_u8 = vqmovun_s16(vcombine_s16(d0_s16, vdup_n_s16(0))); |
| |
| store_u8_4x1(dst8, d0_u8); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int width = w; |
| uint8_t *dst8_ptr = dst8; |
| uint16_t *dst16_ptr = dst16; |
| |
| do { |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_8x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| int16x8_t d0 = compound_convolve8_8_v(s0, s1, s2, s3, s4, s5, s6, s7, |
| filter, vert_offset); |
| |
| int16x8_t dd0 = vreinterpretq_s16_u16(vld1q_u16(dst16_ptr)); |
| |
| int32x4_t dst_wtd_avg0 = |
| vmlal_s16(dist_wtd_offset, bck_offset, vget_low_s16(d0)); |
| int32x4_t dst_wtd_avg1 = |
| vmlal_s16(dist_wtd_offset, bck_offset, vget_high_s16(d0)); |
| |
| dst_wtd_avg0 = vmlal_s16(dst_wtd_avg0, fwd_offset, vget_low_s16(dd0)); |
| dst_wtd_avg1 = vmlal_s16(dst_wtd_avg1, fwd_offset, vget_high_s16(dd0)); |
| |
| int16x4_t d0_s16_0 = vshrn_n_s32( |
| dst_wtd_avg0, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS + |
| DIST_PRECISION_BITS); |
| int16x4_t d0_s16_1 = vshrn_n_s32( |
| dst_wtd_avg1, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS + |
| DIST_PRECISION_BITS); |
| |
| uint8x8_t d0_u8 = vqmovun_s16(vcombine_s16(d0_s16_0, d0_s16_1)); |
| |
| vst1_u8(dst8_ptr, d0_u8); |
| |
| s += 8; |
| dst8_ptr += 8; |
| dst16_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE uint8x8_t convolve8_4_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 filter, |
| const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum = offset_const; |
| sum = vmlal_lane_s16(sum, s0, filter_0_3, 0); |
| sum = vmlal_lane_s16(sum, s1, filter_0_3, 1); |
| sum = vmlal_lane_s16(sum, s2, filter_0_3, 2); |
| sum = vmlal_lane_s16(sum, s3, filter_0_3, 3); |
| sum = vmlal_lane_s16(sum, s4, filter_4_7, 0); |
| sum = vmlal_lane_s16(sum, s5, filter_4_7, 1); |
| sum = vmlal_lane_s16(sum, s6, filter_4_7, 2); |
| sum = vmlal_lane_s16(sum, s7, filter_4_7, 3); |
| |
| int16x4_t res = vshrn_n_s32(sum, 2 * FILTER_BITS - ROUND0_BITS); |
| |
| return vqmovun_s16(vcombine_s16(res, vdup_n_s16(0))); |
| } |
| |
| static INLINE uint8x8_t convolve8_8_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 filter, |
| const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum0 = offset_const; |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s0), filter_0_3, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), filter_0_3, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), filter_0_3, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), filter_0_3, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), filter_4_7, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), filter_4_7, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s6), filter_4_7, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s7), filter_4_7, 3); |
| |
| int32x4_t sum1 = offset_const; |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s0), filter_0_3, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), filter_0_3, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), filter_0_3, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), filter_0_3, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), filter_4_7, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), filter_4_7, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s6), filter_4_7, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s7), filter_4_7, 3); |
| |
| int16x4_t res0 = vshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS); |
| int16x4_t res1 = vshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS); |
| |
| return vqmovun_s16(vcombine_s16(res0, res1)); |
| } |
| |
| static INLINE void convolve_vert_scale_8tap_neon( |
| const int16_t *src, int src_stride, uint8_t *dst, int dst_stride, int w, |
| int h, const int16_t *y_filter, int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| const int round_1 = 2 * FILTER_BITS - ROUND0_BITS; |
| // The shim of 1 << (round_1 - 1) enables us to use non-rounding shifts. |
| int32x4_t vert_offset = |
| vdupq_n_s32((1 << (round_1 - 1)) - (1 << (offset_bits - 1))); |
| |
| int y_qn = subpel_y_qn; |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_4x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| uint8x8_t d = |
| convolve8_4_v(s0, s1, s2, s3, s4, s5, s6, s7, filter, vert_offset); |
| |
| store_u8_4x1(dst, d); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else if (w == 8) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x8_t s0, s1, s2, s3, s4, s5, s6, s7; |
| load_s16_8x8(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| uint8x8_t d = |
| convolve8_8_v(s0, s1, s2, s3, s4, s5, s6, s7, filter, vert_offset); |
| |
| vst1_u8(dst, d); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| uint8_t *d = dst; |
| int width = w; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| do { |
| int16x8_t s0[2], s1[2], s2[2], s3[2], s4[2], s5[2], s6[2], s7[2]; |
| load_s16_8x8(s, src_stride, &s0[0], &s1[0], &s2[0], &s3[0], &s4[0], |
| &s5[0], &s6[0], &s7[0]); |
| load_s16_8x8(s + 8, src_stride, &s0[1], &s1[1], &s2[1], &s3[1], &s4[1], |
| &s5[1], &s6[1], &s7[1]); |
| |
| uint8x8_t d0 = convolve8_8_v(s0[0], s1[0], s2[0], s3[0], s4[0], s5[0], |
| s6[0], s7[0], filter, vert_offset); |
| uint8x8_t d1 = convolve8_8_v(s0[1], s1[1], s2[1], s3[1], s4[1], s5[1], |
| s6[1], s7[1], filter, vert_offset); |
| |
| vst1q_u8(d, vcombine_u8(d0, d1)); |
| |
| s += 16; |
| d += 16; |
| width -= 16; |
| } while (width != 0); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE int16x4_t compound_convolve6_4_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 filter, const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum = offset_const; |
| // Filter values at indices 0 and 7 are 0. |
| sum = vmlal_lane_s16(sum, s0, filter_0_3, 1); |
| sum = vmlal_lane_s16(sum, s1, filter_0_3, 2); |
| sum = vmlal_lane_s16(sum, s2, filter_0_3, 3); |
| sum = vmlal_lane_s16(sum, s3, filter_4_7, 0); |
| sum = vmlal_lane_s16(sum, s4, filter_4_7, 1); |
| sum = vmlal_lane_s16(sum, s5, filter_4_7, 2); |
| |
| return vshrn_n_s32(sum, COMPOUND_ROUND1_BITS); |
| } |
| |
| static INLINE int16x8_t compound_convolve6_8_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 filter, const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum0 = offset_const; |
| // Filter values at indices 0 and 7 are 0. |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s0), filter_0_3, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), filter_0_3, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), filter_0_3, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), filter_4_7, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), filter_4_7, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), filter_4_7, 2); |
| |
| int32x4_t sum1 = offset_const; |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s0), filter_0_3, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), filter_0_3, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), filter_0_3, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), filter_4_7, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), filter_4_7, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), filter_4_7, 2); |
| |
| int16x4_t res0 = vshrn_n_s32(sum0, COMPOUND_ROUND1_BITS); |
| int16x4_t res1 = vshrn_n_s32(sum1, COMPOUND_ROUND1_BITS); |
| |
| return vcombine_s16(res0, res1); |
| } |
| |
| static INLINE void compound_convolve_vert_scale_6tap_neon( |
| const int16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w, |
| int h, const int16_t *y_filter, int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| // A shim of 1 << (COMPOUND_ROUND1_BITS - 1) enables us to use |
| // non-rounding shifts - which are generally faster than rounding shifts on |
| // modern CPUs. |
| const int32x4_t vert_offset = |
| vdupq_n_s32((1 << offset_bits) + (1 << (COMPOUND_ROUND1_BITS - 1))); |
| |
| int y_qn = subpel_y_qn; |
| |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5; |
| load_s16_4x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| int16x4_t d0 = |
| compound_convolve6_4_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| vst1_u16(dst, vreinterpret_u16_s16(d0)); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int width = w; |
| uint16_t *d = dst; |
| |
| do { |
| int16x8_t s0, s1, s2, s3, s4, s5; |
| load_s16_8x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| int16x8_t d0 = |
| compound_convolve6_8_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| vst1q_u16(d, vreinterpretq_u16_s16(d0)); |
| |
| s += 8; |
| d += 8; |
| width -= 8; |
| } while (width != 0); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE void compound_avg_convolve_vert_scale_6tap_neon( |
| const int16_t *src, int src_stride, uint8_t *dst8, int dst8_stride, |
| uint16_t *dst16, int dst16_stride, int w, int h, const int16_t *y_filter, |
| int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| // A shim of 1 << (COMPOUND_ROUND1_BITS - 1) enables us to use |
| // non-rounding shifts - which are generally faster than rounding shifts |
| // on modern CPUs. |
| const int32_t vert_offset_bits = |
| (1 << offset_bits) + (1 << (COMPOUND_ROUND1_BITS - 1)); |
| // For the averaging code path substract round offset and convolve round. |
| const int32_t avg_offset_bits = (1 << (offset_bits + 1)) + (1 << offset_bits); |
| const int32x4_t vert_offset = vdupq_n_s32(vert_offset_bits - avg_offset_bits); |
| |
| int y_qn = subpel_y_qn; |
| |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5; |
| load_s16_4x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| int16x4_t d0 = |
| compound_convolve6_4_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| int16x4_t dd0 = vreinterpret_s16_u16(vld1_u16(dst16)); |
| |
| int16x4_t avg = vhadd_s16(dd0, d0); |
| int16x8_t d0_s16 = vcombine_s16(avg, vdup_n_s16(0)); |
| |
| uint8x8_t d0_u8 = vqrshrun_n_s16( |
| d0_s16, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS); |
| |
| store_u8_4x1(dst8, d0_u8); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int width = w; |
| uint8_t *dst8_ptr = dst8; |
| uint16_t *dst16_ptr = dst16; |
| |
| do { |
| int16x8_t s0, s1, s2, s3, s4, s5; |
| load_s16_8x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| int16x8_t d0 = |
| compound_convolve6_8_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| int16x8_t dd0 = vreinterpretq_s16_u16(vld1q_u16(dst16_ptr)); |
| |
| int16x8_t avg = vhaddq_s16(dd0, d0); |
| |
| uint8x8_t d0_u8 = vqrshrun_n_s16( |
| avg, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS); |
| |
| vst1_u8(dst8_ptr, d0_u8); |
| |
| s += 8; |
| dst8_ptr += 8; |
| dst16_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE void compound_dist_wtd_convolve_vert_scale_6tap_neon( |
| const int16_t *src, int src_stride, uint8_t *dst8, int dst8_stride, |
| uint16_t *dst16, int dst16_stride, int w, int h, const int16_t *y_filter, |
| ConvolveParams *conv_params, int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| int y_qn = subpel_y_qn; |
| // A shim of 1 << (COMPOUND_ROUND1_BITS - 1) enables us to use |
| // non-rounding shifts - which are generally faster than rounding shifts on |
| // modern CPUs. |
| const int32x4_t vert_offset = |
| vdupq_n_s32((1 << offset_bits) + (1 << (COMPOUND_ROUND1_BITS - 1))); |
| // For the weighted averaging code path we have to substract round offset and |
| // convolve round. The shim of 1 << (2 * FILTER_BITS - ROUND0_BITS - |
| // COMPOUND_ROUND1_BITS - 1) enables us to use non-rounding shifts. The |
| // additional shift by DIST_PRECISION_BITS is needed in order to merge two |
| // shift calculations into one. |
| const int32x4_t dist_wtd_offset = vdupq_n_s32( |
| (1 << (2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS - 1 + |
| DIST_PRECISION_BITS)) - |
| (1 << (offset_bits - COMPOUND_ROUND1_BITS + DIST_PRECISION_BITS)) - |
| (1 << (offset_bits - COMPOUND_ROUND1_BITS - 1 + DIST_PRECISION_BITS))); |
| const int16x4_t bck_offset = vdup_n_s16(conv_params->bck_offset); |
| const int16x4_t fwd_offset = vdup_n_s16(conv_params->fwd_offset); |
| |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5; |
| load_s16_4x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| int16x4_t d0 = |
| compound_convolve6_4_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| int16x4_t dd0 = vreinterpret_s16_u16(vld1_u16(dst16)); |
| |
| int32x4_t dst_wtd_avg = vmlal_s16(dist_wtd_offset, bck_offset, d0); |
| dst_wtd_avg = vmlal_s16(dst_wtd_avg, fwd_offset, dd0); |
| |
| int16x4_t d0_s16 = vshrn_n_s32( |
| dst_wtd_avg, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS + |
| DIST_PRECISION_BITS); |
| |
| uint8x8_t d0_u8 = vqmovun_s16(vcombine_s16(d0_s16, vdup_n_s16(0))); |
| |
| store_u8_4x1(dst8, d0_u8); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int width = w; |
| uint8_t *dst8_ptr = dst8; |
| uint16_t *dst16_ptr = dst16; |
| |
| do { |
| int16x8_t s0, s1, s2, s3, s4, s5; |
| load_s16_8x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| int16x8_t d0 = |
| compound_convolve6_8_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| int16x8_t dd0 = vreinterpretq_s16_u16(vld1q_u16(dst16_ptr)); |
| |
| int32x4_t dst_wtd_avg0 = |
| vmlal_s16(dist_wtd_offset, bck_offset, vget_low_s16(d0)); |
| int32x4_t dst_wtd_avg1 = |
| vmlal_s16(dist_wtd_offset, bck_offset, vget_high_s16(d0)); |
| |
| dst_wtd_avg0 = vmlal_s16(dst_wtd_avg0, fwd_offset, vget_low_s16(dd0)); |
| dst_wtd_avg1 = vmlal_s16(dst_wtd_avg1, fwd_offset, vget_high_s16(dd0)); |
| |
| int16x4_t d0_s16_0 = vshrn_n_s32( |
| dst_wtd_avg0, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS + |
| DIST_PRECISION_BITS); |
| int16x4_t d0_s16_1 = vshrn_n_s32( |
| dst_wtd_avg1, 2 * FILTER_BITS - ROUND0_BITS - COMPOUND_ROUND1_BITS + |
| DIST_PRECISION_BITS); |
| |
| uint8x8_t d0_u8 = vqmovun_s16(vcombine_s16(d0_s16_0, d0_s16_1)); |
| |
| vst1_u8(dst8_ptr, d0_u8); |
| |
| s += 8; |
| dst8_ptr += 8; |
| dst16_ptr += 8; |
| width -= 8; |
| } while (width != 0); |
| |
| dst16 += dst16_stride; |
| dst8 += dst8_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| static INLINE uint8x8_t convolve6_4_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 filter, |
| const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum = offset_const; |
| // Filter values at indices 0 and 7 are 0. |
| sum = vmlal_lane_s16(sum, s0, filter_0_3, 1); |
| sum = vmlal_lane_s16(sum, s1, filter_0_3, 2); |
| sum = vmlal_lane_s16(sum, s2, filter_0_3, 3); |
| sum = vmlal_lane_s16(sum, s3, filter_4_7, 0); |
| sum = vmlal_lane_s16(sum, s4, filter_4_7, 1); |
| sum = vmlal_lane_s16(sum, s5, filter_4_7, 2); |
| |
| int16x4_t res = vshrn_n_s32(sum, 2 * FILTER_BITS - ROUND0_BITS); |
| |
| return vqmovun_s16(vcombine_s16(res, vdup_n_s16(0))); |
| } |
| |
| static INLINE uint8x8_t convolve6_8_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 filter, |
| const int32x4_t offset_const) { |
| const int16x4_t filter_0_3 = vget_low_s16(filter); |
| const int16x4_t filter_4_7 = vget_high_s16(filter); |
| |
| int32x4_t sum0 = offset_const; |
| // Filter values at indices 0 and 7 are 0. |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s0), filter_0_3, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s1), filter_0_3, 2); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s2), filter_0_3, 3); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s3), filter_4_7, 0); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s4), filter_4_7, 1); |
| sum0 = vmlal_lane_s16(sum0, vget_low_s16(s5), filter_4_7, 2); |
| |
| int32x4_t sum1 = offset_const; |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s0), filter_0_3, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s1), filter_0_3, 2); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s2), filter_0_3, 3); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s3), filter_4_7, 0); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s4), filter_4_7, 1); |
| sum1 = vmlal_lane_s16(sum1, vget_high_s16(s5), filter_4_7, 2); |
| |
| int16x4_t res0 = vshrn_n_s32(sum0, 2 * FILTER_BITS - ROUND0_BITS); |
| int16x4_t res1 = vshrn_n_s32(sum1, 2 * FILTER_BITS - ROUND0_BITS); |
| |
| return vqmovun_s16(vcombine_s16(res0, res1)); |
| } |
| |
| static INLINE void convolve_vert_scale_6tap_neon( |
| const int16_t *src, int src_stride, uint8_t *dst, int dst_stride, int w, |
| int h, const int16_t *y_filter, int subpel_y_qn, int y_step_qn) { |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - ROUND0_BITS; |
| const int round_1 = 2 * FILTER_BITS - ROUND0_BITS; |
| // The shim of 1 << (round_1 - 1) enables us to use non-rounding shifts. |
| int32x4_t vert_offset = |
| vdupq_n_s32((1 << (round_1 - 1)) - (1 << (offset_bits - 1))); |
| |
| int y_qn = subpel_y_qn; |
| if (w == 4) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x4_t s0, s1, s2, s3, s4, s5; |
| load_s16_4x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| uint8x8_t d = convolve6_4_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| store_u8_4x1(dst, d); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else if (w == 8) { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| int16x8_t s0, s1, s2, s3, s4, s5; |
| load_s16_8x6(s, src_stride, &s0, &s1, &s2, &s3, &s4, &s5); |
| |
| uint8x8_t d = convolve6_8_v(s0, s1, s2, s3, s4, s5, filter, vert_offset); |
| |
| vst1_u8(dst, d); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } else { |
| do { |
| const int16_t *s = &src[(y_qn >> SCALE_SUBPEL_BITS) * src_stride]; |
| uint8_t *d = dst; |
| int width = w; |
| |
| const ptrdiff_t filter_offset = |
| SUBPEL_TAPS * ((y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS); |
| const int16x8_t filter = vld1q_s16(y_filter + filter_offset); |
| |
| do { |
| int16x8_t s0[2], s1[2], s2[2], s3[2], s4[2], s5[2]; |
| load_s16_8x6(s, src_stride, &s0[0], &s1[0], &s2[0], &s3[0], &s4[0], |
| &s5[0]); |
| load_s16_8x6(s + 8, src_stride, &s0[1], &s1[1], &s2[1], &s3[1], &s4[1], |
| &s5[1]); |
| |
| uint8x8_t d0 = convolve6_8_v(s0[0], s1[0], s2[0], s3[0], s4[0], s5[0], |
| filter, vert_offset); |
| uint8x8_t d1 = convolve6_8_v(s0[1], s1[1], s2[1], s3[1], s4[1], s5[1], |
| filter, vert_offset); |
| |
| vst1q_u8(d, vcombine_u8(d0, d1)); |
| |
| s += 16; |
| d += 16; |
| width -= 16; |
| } while (width != 0); |
| |
| dst += dst_stride; |
| y_qn += y_step_qn; |
| } while (--h != 0); |
| } |
| } |
| |
| #endif // AOM_AV1_COMMON_ARM_CONVOLVE_SCALE_NEON_H_ |
