| /* |
| * Copyright (c) 2023, Alliance for Open Media. All rights reserved. |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include "warp_plane_neon.h" |
| |
| DECLARE_ALIGNED(16, static const uint8_t, usdot_permute_idx[48]) = { |
| 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6, |
| 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10, |
| 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 |
| }; |
| |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_4x1_f4(const uint8x16_t in, |
| int sx, int alpha) { |
| // Only put the constant in every other lane to avoid double-counting when |
| // performing the pairwise add later. |
| const int32x4_t add_const = |
| vreinterpretq_s32_u64(vdupq_n_u64(1 << (8 + FILTER_BITS - 1))); |
| |
| // Loading the 8 filter taps |
| int16x8_t f[4]; |
| load_filters_4(f, sx, alpha); |
| |
| int8x16_t f01_u8 = vcombine_s8(vmovn_s16(f[0]), vmovn_s16(f[1])); |
| int8x16_t f23_u8 = vcombine_s8(vmovn_s16(f[2]), vmovn_s16(f[3])); |
| |
| uint8x8_t in0 = vget_low_u8(in); |
| uint8x8_t in1 = vget_low_u8(vextq_u8(in, in, 1)); |
| uint8x8_t in2 = vget_low_u8(vextq_u8(in, in, 2)); |
| uint8x8_t in3 = vget_low_u8(vextq_u8(in, in, 3)); |
| |
| int32x4_t m01 = vusdotq_s32(add_const, vcombine_u8(in0, in1), f01_u8); |
| int32x4_t m23 = vusdotq_s32(add_const, vcombine_u8(in2, in3), f23_u8); |
| |
| int32x4_t m0123 = vpaddq_s32(m01, m23); |
| |
| uint16x8_t res = |
| vcombine_u16(vqrshrun_n_s32(m0123, ROUND0_BITS), vdup_n_u16(0)); |
| return vreinterpretq_s16_u16(res); |
| } |
| |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_8x1_f8(const uint8x16_t in, |
| int sx, int alpha) { |
| // Only put the constant in every other lane to avoid double-counting when |
| // performing the pairwise add later. |
| const int32x4_t add_const = |
| vreinterpretq_s32_u64(vdupq_n_u64(1 << (8 + FILTER_BITS - 1))); |
| |
| // Loading the 8 filter taps |
| int16x8_t f[8]; |
| load_filters_8(f, sx, alpha); |
| |
| int8x16_t f01_u8 = vcombine_s8(vmovn_s16(f[0]), vmovn_s16(f[1])); |
| int8x16_t f23_u8 = vcombine_s8(vmovn_s16(f[2]), vmovn_s16(f[3])); |
| int8x16_t f45_u8 = vcombine_s8(vmovn_s16(f[4]), vmovn_s16(f[5])); |
| int8x16_t f67_u8 = vcombine_s8(vmovn_s16(f[6]), vmovn_s16(f[7])); |
| |
| uint8x8_t in0 = vget_low_u8(in); |
| uint8x8_t in1 = vget_low_u8(vextq_u8(in, in, 1)); |
| uint8x8_t in2 = vget_low_u8(vextq_u8(in, in, 2)); |
| uint8x8_t in3 = vget_low_u8(vextq_u8(in, in, 3)); |
| uint8x8_t in4 = vget_low_u8(vextq_u8(in, in, 4)); |
| uint8x8_t in5 = vget_low_u8(vextq_u8(in, in, 5)); |
| uint8x8_t in6 = vget_low_u8(vextq_u8(in, in, 6)); |
| uint8x8_t in7 = vget_low_u8(vextq_u8(in, in, 7)); |
| |
| int32x4_t m01 = vusdotq_s32(add_const, vcombine_u8(in0, in1), f01_u8); |
| int32x4_t m23 = vusdotq_s32(add_const, vcombine_u8(in2, in3), f23_u8); |
| int32x4_t m45 = vusdotq_s32(add_const, vcombine_u8(in4, in5), f45_u8); |
| int32x4_t m67 = vusdotq_s32(add_const, vcombine_u8(in6, in7), f67_u8); |
| |
| int32x4_t m0123 = vpaddq_s32(m01, m23); |
| int32x4_t m4567 = vpaddq_s32(m45, m67); |
| |
| uint16x8_t res = vcombine_u16(vqrshrun_n_s32(m0123, ROUND0_BITS), |
| vqrshrun_n_s32(m4567, ROUND0_BITS)); |
| return vreinterpretq_s16_u16(res); |
| } |
| |
| static AOM_FORCE_INLINE int16x8_t |
| horizontal_filter_4x1_f1_beta0(const uint8x16_t in, int16x8_t f_s16) { |
| const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); |
| |
| int8x16_t f_s8 = vcombine_s8(vmovn_s16(f_s16), vmovn_s16(f_s16)); |
| |
| uint8x16_t perm0 = vld1q_u8(&usdot_permute_idx[0]); |
| uint8x16_t perm1 = vld1q_u8(&usdot_permute_idx[16]); |
| |
| // Permute samples ready for dot product. |
| // { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } |
| // { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } |
| uint8x16_t in_0123 = vqtbl1q_u8(in, perm0); |
| uint8x16_t in_4567 = vqtbl1q_u8(in, perm1); |
| |
| int32x4_t m0123 = vusdotq_laneq_s32(add_const, in_0123, f_s8, 0); |
| m0123 = vusdotq_laneq_s32(m0123, in_4567, f_s8, 1); |
| |
| uint16x8_t res = |
| vcombine_u16(vqrshrun_n_s32(m0123, ROUND0_BITS), vdup_n_u16(0)); |
| return vreinterpretq_s16_u16(res); |
| } |
| |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_4x1_f1(const uint8x16_t in, |
| int sx) { |
| int16x8_t f_s16 = vld1q_s16(av1_warped_filter[sx >> WARPEDDIFF_PREC_BITS]); |
| return horizontal_filter_4x1_f1_beta0(in, f_s16); |
| } |
| |
| static AOM_FORCE_INLINE int16x8_t |
| horizontal_filter_8x1_f1_beta0(const uint8x16_t in, int16x8_t f_s16) { |
| const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); |
| |
| int8x16_t f_s8 = vcombine_s8(vmovn_s16(f_s16), vmovn_s16(f_s16)); |
| |
| uint8x16_t perm0 = vld1q_u8(&usdot_permute_idx[0]); |
| uint8x16_t perm1 = vld1q_u8(&usdot_permute_idx[16]); |
| uint8x16_t perm2 = vld1q_u8(&usdot_permute_idx[32]); |
| |
| // Permute samples ready for dot product. |
| // { 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6 } |
| // { 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10 } |
| // { 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14 } |
| uint8x16_t in_0123 = vqtbl1q_u8(in, perm0); |
| uint8x16_t in_4567 = vqtbl1q_u8(in, perm1); |
| uint8x16_t in_89ab = vqtbl1q_u8(in, perm2); |
| |
| int32x4_t m0123 = vusdotq_laneq_s32(add_const, in_0123, f_s8, 0); |
| m0123 = vusdotq_laneq_s32(m0123, in_4567, f_s8, 1); |
| |
| int32x4_t m4567 = vusdotq_laneq_s32(add_const, in_4567, f_s8, 0); |
| m4567 = vusdotq_laneq_s32(m4567, in_89ab, f_s8, 1); |
| |
| uint16x8_t res = vcombine_u16(vqrshrun_n_s32(m0123, ROUND0_BITS), |
| vqrshrun_n_s32(m4567, ROUND0_BITS)); |
| return vreinterpretq_s16_u16(res); |
| } |
| |
| static AOM_FORCE_INLINE int16x8_t horizontal_filter_8x1_f1(const uint8x16_t in, |
| int sx) { |
| int16x8_t f_s16 = vld1q_s16(av1_warped_filter[sx >> WARPEDDIFF_PREC_BITS]); |
| return horizontal_filter_8x1_f1_beta0(in, f_s16); |
| } |
| |
| static AOM_FORCE_INLINE void vertical_filter_4x1_f1(const int16x8_t *src, |
| int32x4_t *res, int sy) { |
| int16x4_t s0 = vget_low_s16(src[0]); |
| int16x4_t s1 = vget_low_s16(src[1]); |
| int16x4_t s2 = vget_low_s16(src[2]); |
| int16x4_t s3 = vget_low_s16(src[3]); |
| int16x4_t s4 = vget_low_s16(src[4]); |
| int16x4_t s5 = vget_low_s16(src[5]); |
| int16x4_t s6 = vget_low_s16(src[6]); |
| int16x4_t s7 = vget_low_s16(src[7]); |
| |
| int16x8_t f = vld1q_s16(av1_warped_filter[sy >> WARPEDDIFF_PREC_BITS]); |
| |
| int32x4_t m0123 = vmull_lane_s16(s0, vget_low_s16(f), 0); |
| m0123 = vmlal_lane_s16(m0123, s1, vget_low_s16(f), 1); |
| m0123 = vmlal_lane_s16(m0123, s2, vget_low_s16(f), 2); |
| m0123 = vmlal_lane_s16(m0123, s3, vget_low_s16(f), 3); |
| m0123 = vmlal_lane_s16(m0123, s4, vget_high_s16(f), 0); |
| m0123 = vmlal_lane_s16(m0123, s5, vget_high_s16(f), 1); |
| m0123 = vmlal_lane_s16(m0123, s6, vget_high_s16(f), 2); |
| m0123 = vmlal_lane_s16(m0123, s7, vget_high_s16(f), 3); |
| |
| *res = m0123; |
| } |
| |
| static AOM_FORCE_INLINE void vertical_filter_4x1_f4(const int16x8_t *src, |
| int32x4_t *res, int sy, |
| int gamma) { |
| int16x8_t s0, s1, s2, s3; |
| transpose_elems_s16_4x8( |
| vget_low_s16(src[0]), vget_low_s16(src[1]), vget_low_s16(src[2]), |
| vget_low_s16(src[3]), vget_low_s16(src[4]), vget_low_s16(src[5]), |
| vget_low_s16(src[6]), vget_low_s16(src[7]), &s0, &s1, &s2, &s3); |
| |
| int16x8_t f[4]; |
| load_filters_4(f, sy, gamma); |
| |
| int32x4_t m0 = vmull_s16(vget_low_s16(s0), vget_low_s16(f[0])); |
| m0 = vmlal_s16(m0, vget_high_s16(s0), vget_high_s16(f[0])); |
| int32x4_t m1 = vmull_s16(vget_low_s16(s1), vget_low_s16(f[1])); |
| m1 = vmlal_s16(m1, vget_high_s16(s1), vget_high_s16(f[1])); |
| int32x4_t m2 = vmull_s16(vget_low_s16(s2), vget_low_s16(f[2])); |
| m2 = vmlal_s16(m2, vget_high_s16(s2), vget_high_s16(f[2])); |
| int32x4_t m3 = vmull_s16(vget_low_s16(s3), vget_low_s16(f[3])); |
| m3 = vmlal_s16(m3, vget_high_s16(s3), vget_high_s16(f[3])); |
| |
| int32x4_t m0123_pairs[] = { m0, m1, m2, m3 }; |
| |
| *res = horizontal_add_4d_s32x4(m0123_pairs); |
| } |
| |
| static AOM_FORCE_INLINE void vertical_filter_8x1_f1(const int16x8_t *src, |
| int32x4_t *res_low, |
| int32x4_t *res_high, |
| int sy) { |
| int16x8_t s0 = src[0]; |
| int16x8_t s1 = src[1]; |
| int16x8_t s2 = src[2]; |
| int16x8_t s3 = src[3]; |
| int16x8_t s4 = src[4]; |
| int16x8_t s5 = src[5]; |
| int16x8_t s6 = src[6]; |
| int16x8_t s7 = src[7]; |
| |
| int16x8_t f = vld1q_s16(av1_warped_filter[sy >> WARPEDDIFF_PREC_BITS]); |
| |
| int32x4_t m0123 = vmull_lane_s16(vget_low_s16(s0), vget_low_s16(f), 0); |
| m0123 = vmlal_lane_s16(m0123, vget_low_s16(s1), vget_low_s16(f), 1); |
| m0123 = vmlal_lane_s16(m0123, vget_low_s16(s2), vget_low_s16(f), 2); |
| m0123 = vmlal_lane_s16(m0123, vget_low_s16(s3), vget_low_s16(f), 3); |
| m0123 = vmlal_lane_s16(m0123, vget_low_s16(s4), vget_high_s16(f), 0); |
| m0123 = vmlal_lane_s16(m0123, vget_low_s16(s5), vget_high_s16(f), 1); |
| m0123 = vmlal_lane_s16(m0123, vget_low_s16(s6), vget_high_s16(f), 2); |
| m0123 = vmlal_lane_s16(m0123, vget_low_s16(s7), vget_high_s16(f), 3); |
| |
| int32x4_t m4567 = vmull_lane_s16(vget_high_s16(s0), vget_low_s16(f), 0); |
| m4567 = vmlal_lane_s16(m4567, vget_high_s16(s1), vget_low_s16(f), 1); |
| m4567 = vmlal_lane_s16(m4567, vget_high_s16(s2), vget_low_s16(f), 2); |
| m4567 = vmlal_lane_s16(m4567, vget_high_s16(s3), vget_low_s16(f), 3); |
| m4567 = vmlal_lane_s16(m4567, vget_high_s16(s4), vget_high_s16(f), 0); |
| m4567 = vmlal_lane_s16(m4567, vget_high_s16(s5), vget_high_s16(f), 1); |
| m4567 = vmlal_lane_s16(m4567, vget_high_s16(s6), vget_high_s16(f), 2); |
| m4567 = vmlal_lane_s16(m4567, vget_high_s16(s7), vget_high_s16(f), 3); |
| |
| *res_low = m0123; |
| *res_high = m4567; |
| } |
| |
| static AOM_FORCE_INLINE void vertical_filter_8x1_f8(const int16x8_t *src, |
| int32x4_t *res_low, |
| int32x4_t *res_high, int sy, |
| int gamma) { |
| int16x8_t s0 = src[0]; |
| int16x8_t s1 = src[1]; |
| int16x8_t s2 = src[2]; |
| int16x8_t s3 = src[3]; |
| int16x8_t s4 = src[4]; |
| int16x8_t s5 = src[5]; |
| int16x8_t s6 = src[6]; |
| int16x8_t s7 = src[7]; |
| transpose_elems_inplace_s16_8x8(&s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); |
| |
| int16x8_t f[8]; |
| load_filters_8(f, sy, gamma); |
| |
| int32x4_t m0 = vmull_s16(vget_low_s16(s0), vget_low_s16(f[0])); |
| m0 = vmlal_s16(m0, vget_high_s16(s0), vget_high_s16(f[0])); |
| int32x4_t m1 = vmull_s16(vget_low_s16(s1), vget_low_s16(f[1])); |
| m1 = vmlal_s16(m1, vget_high_s16(s1), vget_high_s16(f[1])); |
| int32x4_t m2 = vmull_s16(vget_low_s16(s2), vget_low_s16(f[2])); |
| m2 = vmlal_s16(m2, vget_high_s16(s2), vget_high_s16(f[2])); |
| int32x4_t m3 = vmull_s16(vget_low_s16(s3), vget_low_s16(f[3])); |
| m3 = vmlal_s16(m3, vget_high_s16(s3), vget_high_s16(f[3])); |
| int32x4_t m4 = vmull_s16(vget_low_s16(s4), vget_low_s16(f[4])); |
| m4 = vmlal_s16(m4, vget_high_s16(s4), vget_high_s16(f[4])); |
| int32x4_t m5 = vmull_s16(vget_low_s16(s5), vget_low_s16(f[5])); |
| m5 = vmlal_s16(m5, vget_high_s16(s5), vget_high_s16(f[5])); |
| int32x4_t m6 = vmull_s16(vget_low_s16(s6), vget_low_s16(f[6])); |
| m6 = vmlal_s16(m6, vget_high_s16(s6), vget_high_s16(f[6])); |
| int32x4_t m7 = vmull_s16(vget_low_s16(s7), vget_low_s16(f[7])); |
| m7 = vmlal_s16(m7, vget_high_s16(s7), vget_high_s16(f[7])); |
| |
| int32x4_t m0123_pairs[] = { m0, m1, m2, m3 }; |
| int32x4_t m4567_pairs[] = { m4, m5, m6, m7 }; |
| |
| *res_low = horizontal_add_4d_s32x4(m0123_pairs); |
| *res_high = horizontal_add_4d_s32x4(m4567_pairs); |
| } |
| |
| void av1_warp_affine_neon_i8mm(const int32_t *mat, const uint8_t *ref, |
| int width, int height, int stride, uint8_t *pred, |
| int p_col, int p_row, int p_width, int p_height, |
| int p_stride, int subsampling_x, |
| int subsampling_y, ConvolveParams *conv_params, |
| int16_t alpha, int16_t beta, int16_t gamma, |
| int16_t delta) { |
| av1_warp_affine_common(mat, ref, width, height, stride, pred, p_col, p_row, |
| p_width, p_height, p_stride, subsampling_x, |
| subsampling_y, conv_params, alpha, beta, gamma, delta); |
| } |
