warp_plane_neon.c (12786B)
1 /* 2 * Copyright (c) 2018, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #include "warp_plane_neon.h" 13 14 static AOM_FORCE_INLINE int16x8_t horizontal_filter_4x1_f4(const uint8x16_t in, 15 int sx, int alpha) { 16 const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); 17 18 // Loading the 8 filter taps 19 int16x8_t f[4]; 20 load_filters_4(f, sx, alpha); 21 22 int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); 23 int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); 24 25 int16x8_t m0 = vmulq_s16(f[0], in16_lo); 26 int16x8_t m1 = vmulq_s16(f[1], vextq_s16(in16_lo, in16_hi, 1)); 27 int16x8_t m2 = vmulq_s16(f[2], vextq_s16(in16_lo, in16_hi, 2)); 28 int16x8_t m3 = vmulq_s16(f[3], vextq_s16(in16_lo, in16_hi, 3)); 29 30 int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), 31 vpaddlq_s16(m3) }; 32 33 int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); 34 35 tmp_res_low = vaddq_s32(tmp_res_low, add_const); 36 37 uint16x8_t res = 38 vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), vdup_n_u16(0)); 39 return vreinterpretq_s16_u16(res); 40 } 41 42 static AOM_FORCE_INLINE int16x8_t horizontal_filter_8x1_f8(const uint8x16_t in, 43 int sx, int alpha) { 44 const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); 45 46 // Loading the 8 filter taps 47 int16x8_t f[8]; 48 load_filters_8(f, sx, alpha); 49 50 int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); 51 int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); 52 53 int16x8_t m0 = vmulq_s16(f[0], in16_lo); 54 int16x8_t m1 = vmulq_s16(f[1], vextq_s16(in16_lo, in16_hi, 1)); 55 int16x8_t m2 = vmulq_s16(f[2], vextq_s16(in16_lo, in16_hi, 2)); 56 int16x8_t m3 = vmulq_s16(f[3], vextq_s16(in16_lo, in16_hi, 3)); 57 int16x8_t m4 = vmulq_s16(f[4], vextq_s16(in16_lo, in16_hi, 4)); 58 int16x8_t m5 = vmulq_s16(f[5], vextq_s16(in16_lo, in16_hi, 5)); 59 int16x8_t m6 = vmulq_s16(f[6], vextq_s16(in16_lo, in16_hi, 6)); 60 int16x8_t m7 = vmulq_s16(f[7], vextq_s16(in16_lo, in16_hi, 7)); 61 62 int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), 63 vpaddlq_s16(m3) }; 64 int32x4_t m4567_pairs[] = { vpaddlq_s16(m4), vpaddlq_s16(m5), vpaddlq_s16(m6), 65 vpaddlq_s16(m7) }; 66 67 int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); 68 int32x4_t tmp_res_high = horizontal_add_4d_s32x4(m4567_pairs); 69 70 tmp_res_low = vaddq_s32(tmp_res_low, add_const); 71 tmp_res_high = vaddq_s32(tmp_res_high, add_const); 72 73 uint16x8_t res = vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), 74 vqrshrun_n_s32(tmp_res_high, ROUND0_BITS)); 75 return vreinterpretq_s16_u16(res); 76 } 77 78 static AOM_FORCE_INLINE int16x8_t 79 horizontal_filter_4x1_f1_beta0(const uint8x16_t in, int16x8_t f_s16) { 80 const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); 81 82 int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); 83 int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); 84 85 int16x8_t m0 = vmulq_s16(f_s16, in16_lo); 86 int16x8_t m1 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 1)); 87 int16x8_t m2 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 2)); 88 int16x8_t m3 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 3)); 89 90 int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), 91 vpaddlq_s16(m3) }; 92 93 int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); 94 95 tmp_res_low = vaddq_s32(tmp_res_low, add_const); 96 97 uint16x8_t res = 98 vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), vdup_n_u16(0)); 99 return vreinterpretq_s16_u16(res); 100 } 101 102 static AOM_FORCE_INLINE int16x8_t horizontal_filter_4x1_f1(const uint8x16_t in, 103 int sx) { 104 int16x8_t f_s16 = vld1q_s16(av1_warped_filter[sx >> WARPEDDIFF_PREC_BITS]); 105 return horizontal_filter_4x1_f1_beta0(in, f_s16); 106 } 107 108 static AOM_FORCE_INLINE int16x8_t 109 horizontal_filter_8x1_f1_beta0(const uint8x16_t in, int16x8_t f_s16) { 110 const int32x4_t add_const = vdupq_n_s32(1 << (8 + FILTER_BITS - 1)); 111 112 int16x8_t in16_lo = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(in))); 113 int16x8_t in16_hi = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(in))); 114 115 int16x8_t m0 = vmulq_s16(f_s16, in16_lo); 116 int16x8_t m1 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 1)); 117 int16x8_t m2 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 2)); 118 int16x8_t m3 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 3)); 119 int16x8_t m4 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 4)); 120 int16x8_t m5 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 5)); 121 int16x8_t m6 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 6)); 122 int16x8_t m7 = vmulq_s16(f_s16, vextq_s16(in16_lo, in16_hi, 7)); 123 124 int32x4_t m0123_pairs[] = { vpaddlq_s16(m0), vpaddlq_s16(m1), vpaddlq_s16(m2), 125 vpaddlq_s16(m3) }; 126 int32x4_t m4567_pairs[] = { vpaddlq_s16(m4), vpaddlq_s16(m5), vpaddlq_s16(m6), 127 vpaddlq_s16(m7) }; 128 129 int32x4_t tmp_res_low = horizontal_add_4d_s32x4(m0123_pairs); 130 int32x4_t tmp_res_high = horizontal_add_4d_s32x4(m4567_pairs); 131 132 tmp_res_low = vaddq_s32(tmp_res_low, add_const); 133 tmp_res_high = vaddq_s32(tmp_res_high, add_const); 134 135 uint16x8_t res = vcombine_u16(vqrshrun_n_s32(tmp_res_low, ROUND0_BITS), 136 vqrshrun_n_s32(tmp_res_high, ROUND0_BITS)); 137 return vreinterpretq_s16_u16(res); 138 } 139 140 static AOM_FORCE_INLINE int16x8_t horizontal_filter_8x1_f1(const uint8x16_t in, 141 int sx) { 142 int16x8_t f_s16 = vld1q_s16(av1_warped_filter[sx >> WARPEDDIFF_PREC_BITS]); 143 return horizontal_filter_8x1_f1_beta0(in, f_s16); 144 } 145 146 static AOM_FORCE_INLINE void vertical_filter_4x1_f1(const int16x8_t *src, 147 int32x4_t *res, int sy) { 148 int16x4_t s0 = vget_low_s16(src[0]); 149 int16x4_t s1 = vget_low_s16(src[1]); 150 int16x4_t s2 = vget_low_s16(src[2]); 151 int16x4_t s3 = vget_low_s16(src[3]); 152 int16x4_t s4 = vget_low_s16(src[4]); 153 int16x4_t s5 = vget_low_s16(src[5]); 154 int16x4_t s6 = vget_low_s16(src[6]); 155 int16x4_t s7 = vget_low_s16(src[7]); 156 157 int16x8_t f = vld1q_s16(av1_warped_filter[sy >> WARPEDDIFF_PREC_BITS]); 158 159 int32x4_t m0123 = vmull_lane_s16(s0, vget_low_s16(f), 0); 160 m0123 = vmlal_lane_s16(m0123, s1, vget_low_s16(f), 1); 161 m0123 = vmlal_lane_s16(m0123, s2, vget_low_s16(f), 2); 162 m0123 = vmlal_lane_s16(m0123, s3, vget_low_s16(f), 3); 163 m0123 = vmlal_lane_s16(m0123, s4, vget_high_s16(f), 0); 164 m0123 = vmlal_lane_s16(m0123, s5, vget_high_s16(f), 1); 165 m0123 = vmlal_lane_s16(m0123, s6, vget_high_s16(f), 2); 166 m0123 = vmlal_lane_s16(m0123, s7, vget_high_s16(f), 3); 167 168 *res = m0123; 169 } 170 171 static AOM_FORCE_INLINE void vertical_filter_4x1_f4(const int16x8_t *src, 172 int32x4_t *res, int sy, 173 int gamma) { 174 int16x8_t s0, s1, s2, s3; 175 transpose_elems_s16_4x8( 176 vget_low_s16(src[0]), vget_low_s16(src[1]), vget_low_s16(src[2]), 177 vget_low_s16(src[3]), vget_low_s16(src[4]), vget_low_s16(src[5]), 178 vget_low_s16(src[6]), vget_low_s16(src[7]), &s0, &s1, &s2, &s3); 179 180 int16x8_t f[4]; 181 load_filters_4(f, sy, gamma); 182 183 int32x4_t m0 = vmull_s16(vget_low_s16(s0), vget_low_s16(f[0])); 184 m0 = vmlal_s16(m0, vget_high_s16(s0), vget_high_s16(f[0])); 185 int32x4_t m1 = vmull_s16(vget_low_s16(s1), vget_low_s16(f[1])); 186 m1 = vmlal_s16(m1, vget_high_s16(s1), vget_high_s16(f[1])); 187 int32x4_t m2 = vmull_s16(vget_low_s16(s2), vget_low_s16(f[2])); 188 m2 = vmlal_s16(m2, vget_high_s16(s2), vget_high_s16(f[2])); 189 int32x4_t m3 = vmull_s16(vget_low_s16(s3), vget_low_s16(f[3])); 190 m3 = vmlal_s16(m3, vget_high_s16(s3), vget_high_s16(f[3])); 191 192 int32x4_t m0123_pairs[] = { m0, m1, m2, m3 }; 193 194 *res = horizontal_add_4d_s32x4(m0123_pairs); 195 } 196 197 static AOM_FORCE_INLINE void vertical_filter_8x1_f1(const int16x8_t *src, 198 int32x4_t *res_low, 199 int32x4_t *res_high, 200 int sy) { 201 int16x8_t s0 = src[0]; 202 int16x8_t s1 = src[1]; 203 int16x8_t s2 = src[2]; 204 int16x8_t s3 = src[3]; 205 int16x8_t s4 = src[4]; 206 int16x8_t s5 = src[5]; 207 int16x8_t s6 = src[6]; 208 int16x8_t s7 = src[7]; 209 210 int16x8_t f = vld1q_s16(av1_warped_filter[sy >> WARPEDDIFF_PREC_BITS]); 211 212 int32x4_t m0123 = vmull_lane_s16(vget_low_s16(s0), vget_low_s16(f), 0); 213 m0123 = vmlal_lane_s16(m0123, vget_low_s16(s1), vget_low_s16(f), 1); 214 m0123 = vmlal_lane_s16(m0123, vget_low_s16(s2), vget_low_s16(f), 2); 215 m0123 = vmlal_lane_s16(m0123, vget_low_s16(s3), vget_low_s16(f), 3); 216 m0123 = vmlal_lane_s16(m0123, vget_low_s16(s4), vget_high_s16(f), 0); 217 m0123 = vmlal_lane_s16(m0123, vget_low_s16(s5), vget_high_s16(f), 1); 218 m0123 = vmlal_lane_s16(m0123, vget_low_s16(s6), vget_high_s16(f), 2); 219 m0123 = vmlal_lane_s16(m0123, vget_low_s16(s7), vget_high_s16(f), 3); 220 221 int32x4_t m4567 = vmull_lane_s16(vget_high_s16(s0), vget_low_s16(f), 0); 222 m4567 = vmlal_lane_s16(m4567, vget_high_s16(s1), vget_low_s16(f), 1); 223 m4567 = vmlal_lane_s16(m4567, vget_high_s16(s2), vget_low_s16(f), 2); 224 m4567 = vmlal_lane_s16(m4567, vget_high_s16(s3), vget_low_s16(f), 3); 225 m4567 = vmlal_lane_s16(m4567, vget_high_s16(s4), vget_high_s16(f), 0); 226 m4567 = vmlal_lane_s16(m4567, vget_high_s16(s5), vget_high_s16(f), 1); 227 m4567 = vmlal_lane_s16(m4567, vget_high_s16(s6), vget_high_s16(f), 2); 228 m4567 = vmlal_lane_s16(m4567, vget_high_s16(s7), vget_high_s16(f), 3); 229 230 *res_low = m0123; 231 *res_high = m4567; 232 } 233 234 static AOM_FORCE_INLINE void vertical_filter_8x1_f8(const int16x8_t *src, 235 int32x4_t *res_low, 236 int32x4_t *res_high, int sy, 237 int gamma) { 238 int16x8_t s0 = src[0]; 239 int16x8_t s1 = src[1]; 240 int16x8_t s2 = src[2]; 241 int16x8_t s3 = src[3]; 242 int16x8_t s4 = src[4]; 243 int16x8_t s5 = src[5]; 244 int16x8_t s6 = src[6]; 245 int16x8_t s7 = src[7]; 246 transpose_elems_inplace_s16_8x8(&s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7); 247 248 int16x8_t f[8]; 249 load_filters_8(f, sy, gamma); 250 251 int32x4_t m0 = vmull_s16(vget_low_s16(s0), vget_low_s16(f[0])); 252 m0 = vmlal_s16(m0, vget_high_s16(s0), vget_high_s16(f[0])); 253 int32x4_t m1 = vmull_s16(vget_low_s16(s1), vget_low_s16(f[1])); 254 m1 = vmlal_s16(m1, vget_high_s16(s1), vget_high_s16(f[1])); 255 int32x4_t m2 = vmull_s16(vget_low_s16(s2), vget_low_s16(f[2])); 256 m2 = vmlal_s16(m2, vget_high_s16(s2), vget_high_s16(f[2])); 257 int32x4_t m3 = vmull_s16(vget_low_s16(s3), vget_low_s16(f[3])); 258 m3 = vmlal_s16(m3, vget_high_s16(s3), vget_high_s16(f[3])); 259 int32x4_t m4 = vmull_s16(vget_low_s16(s4), vget_low_s16(f[4])); 260 m4 = vmlal_s16(m4, vget_high_s16(s4), vget_high_s16(f[4])); 261 int32x4_t m5 = vmull_s16(vget_low_s16(s5), vget_low_s16(f[5])); 262 m5 = vmlal_s16(m5, vget_high_s16(s5), vget_high_s16(f[5])); 263 int32x4_t m6 = vmull_s16(vget_low_s16(s6), vget_low_s16(f[6])); 264 m6 = vmlal_s16(m6, vget_high_s16(s6), vget_high_s16(f[6])); 265 int32x4_t m7 = vmull_s16(vget_low_s16(s7), vget_low_s16(f[7])); 266 m7 = vmlal_s16(m7, vget_high_s16(s7), vget_high_s16(f[7])); 267 268 int32x4_t m0123_pairs[] = { m0, m1, m2, m3 }; 269 int32x4_t m4567_pairs[] = { m4, m5, m6, m7 }; 270 271 *res_low = horizontal_add_4d_s32x4(m0123_pairs); 272 *res_high = horizontal_add_4d_s32x4(m4567_pairs); 273 } 274 275 void av1_warp_affine_neon(const int32_t *mat, const uint8_t *ref, int width, 276 int height, int stride, uint8_t *pred, int p_col, 277 int p_row, int p_width, int p_height, int p_stride, 278 int subsampling_x, int subsampling_y, 279 ConvolveParams *conv_params, int16_t alpha, 280 int16_t beta, int16_t gamma, int16_t delta) { 281 av1_warp_affine_common(mat, ref, width, height, stride, pred, p_col, p_row, 282 p_width, p_height, p_stride, subsampling_x, 283 subsampling_y, conv_params, alpha, beta, gamma, delta); 284 }