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| 1 /* |
| 2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #include <arm_neon.h> |
| 12 |
| 13 void vp8_short_fdct4x4_neon( |
| 14 int16_t *input, |
| 15 int16_t *output, |
| 16 int pitch) { |
| 17 int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16; |
| 18 int16x4_t d16s16, d17s16, d26s16, dEmptys16; |
| 19 uint16x4_t d4u16; |
| 20 int16x8_t q0s16, q1s16; |
| 21 int32x4_t q9s32, q10s32, q11s32, q12s32; |
| 22 int16x4x2_t v2tmp0, v2tmp1; |
| 23 int32x2x2_t v2tmp2, v2tmp3; |
| 24 |
| 25 d16s16 = vdup_n_s16(5352); |
| 26 d17s16 = vdup_n_s16(2217); |
| 27 q9s32 = vdupq_n_s32(14500); |
| 28 q10s32 = vdupq_n_s32(7500); |
| 29 q11s32 = vdupq_n_s32(12000); |
| 30 q12s32 = vdupq_n_s32(51000); |
| 31 |
| 32 // Part one |
| 33 pitch >>= 1; |
| 34 d0s16 = vld1_s16(input); |
| 35 input += pitch; |
| 36 d1s16 = vld1_s16(input); |
| 37 input += pitch; |
| 38 d2s16 = vld1_s16(input); |
| 39 input += pitch; |
| 40 d3s16 = vld1_s16(input); |
| 41 |
| 42 v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16), |
| 43 vreinterpret_s32_s16(d2s16)); |
| 44 v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16), |
| 45 vreinterpret_s32_s16(d3s16)); |
| 46 v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]), // d0 |
| 47 vreinterpret_s16_s32(v2tmp3.val[0])); // d1 |
| 48 v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]), // d2 |
| 49 vreinterpret_s16_s32(v2tmp3.val[1])); // d3 |
| 50 |
| 51 d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 52 d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 53 d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 54 d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 55 |
| 56 d4s16 = vshl_n_s16(d4s16, 3); |
| 57 d5s16 = vshl_n_s16(d5s16, 3); |
| 58 d6s16 = vshl_n_s16(d6s16, 3); |
| 59 d7s16 = vshl_n_s16(d7s16, 3); |
| 60 |
| 61 d0s16 = vadd_s16(d4s16, d5s16); |
| 62 d2s16 = vsub_s16(d4s16, d5s16); |
| 63 |
| 64 q9s32 = vmlal_s16(q9s32, d7s16, d16s16); |
| 65 q10s32 = vmlal_s16(q10s32, d7s16, d17s16); |
| 66 q9s32 = vmlal_s16(q9s32, d6s16, d17s16); |
| 67 q10s32 = vmlsl_s16(q10s32, d6s16, d16s16); |
| 68 |
| 69 d1s16 = vshrn_n_s32(q9s32, 12); |
| 70 d3s16 = vshrn_n_s32(q10s32, 12); |
| 71 |
| 72 // Part two |
| 73 v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16), |
| 74 vreinterpret_s32_s16(d2s16)); |
| 75 v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16), |
| 76 vreinterpret_s32_s16(d3s16)); |
| 77 v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]), // d0 |
| 78 vreinterpret_s16_s32(v2tmp3.val[0])); // d1 |
| 79 v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]), // d2 |
| 80 vreinterpret_s16_s32(v2tmp3.val[1])); // d3 |
| 81 |
| 82 d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 83 d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 84 d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 85 d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 86 |
| 87 d26s16 = vdup_n_s16(7); |
| 88 d4s16 = vadd_s16(d4s16, d26s16); |
| 89 |
| 90 d0s16 = vadd_s16(d4s16, d5s16); |
| 91 d2s16 = vsub_s16(d4s16, d5s16); |
| 92 |
| 93 q11s32 = vmlal_s16(q11s32, d7s16, d16s16); |
| 94 q12s32 = vmlal_s16(q12s32, d7s16, d17s16); |
| 95 |
| 96 dEmptys16 = vdup_n_s16(0); |
| 97 d4u16 = vceq_s16(d7s16, dEmptys16); |
| 98 |
| 99 d0s16 = vshr_n_s16(d0s16, 4); |
| 100 d2s16 = vshr_n_s16(d2s16, 4); |
| 101 |
| 102 q11s32 = vmlal_s16(q11s32, d6s16, d17s16); |
| 103 q12s32 = vmlsl_s16(q12s32, d6s16, d16s16); |
| 104 |
| 105 d4u16 = vmvn_u16(d4u16); |
| 106 d1s16 = vshrn_n_s32(q11s32, 16); |
| 107 d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d4u16)); |
| 108 d3s16 = vshrn_n_s32(q12s32, 16); |
| 109 |
| 110 q0s16 = vcombine_s16(d0s16, d1s16); |
| 111 q1s16 = vcombine_s16(d2s16, d3s16); |
| 112 |
| 113 vst1q_s16(output, q0s16); |
| 114 vst1q_s16(output + 8, q1s16); |
| 115 return; |
| 116 } |
| 117 |
| 118 void vp8_short_fdct8x4_neon( |
| 119 int16_t *input, |
| 120 int16_t *output, |
| 121 int pitch) { |
| 122 int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16; |
| 123 int16x4_t d16s16, d17s16, d26s16, d27s16, d28s16, d29s16; |
| 124 uint16x4_t d28u16, d29u16; |
| 125 uint16x8_t q14u16; |
| 126 int16x8_t q0s16, q1s16, q2s16, q3s16; |
| 127 int16x8_t q11s16, q12s16, q13s16, q14s16, q15s16, qEmptys16; |
| 128 int32x4_t q9s32, q10s32, q11s32, q12s32; |
| 129 int16x8x2_t v2tmp0, v2tmp1; |
| 130 int32x4x2_t v2tmp2, v2tmp3; |
| 131 |
| 132 d16s16 = vdup_n_s16(5352); |
| 133 d17s16 = vdup_n_s16(2217); |
| 134 q9s32 = vdupq_n_s32(14500); |
| 135 q10s32 = vdupq_n_s32(7500); |
| 136 |
| 137 // Part one |
| 138 pitch >>= 1; |
| 139 q0s16 = vld1q_s16(input); |
| 140 input += pitch; |
| 141 q1s16 = vld1q_s16(input); |
| 142 input += pitch; |
| 143 q2s16 = vld1q_s16(input); |
| 144 input += pitch; |
| 145 q3s16 = vld1q_s16(input); |
| 146 |
| 147 v2tmp2 = vtrnq_s32(vreinterpretq_s32_s16(q0s16), |
| 148 vreinterpretq_s32_s16(q2s16)); |
| 149 v2tmp3 = vtrnq_s32(vreinterpretq_s32_s16(q1s16), |
| 150 vreinterpretq_s32_s16(q3s16)); |
| 151 v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]), // q0 |
| 152 vreinterpretq_s16_s32(v2tmp3.val[0])); // q1 |
| 153 v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]), // q2 |
| 154 vreinterpretq_s16_s32(v2tmp3.val[1])); // q3 |
| 155 |
| 156 q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 157 q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 158 q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 159 q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 160 |
| 161 q11s16 = vshlq_n_s16(q11s16, 3); |
| 162 q12s16 = vshlq_n_s16(q12s16, 3); |
| 163 q13s16 = vshlq_n_s16(q13s16, 3); |
| 164 q14s16 = vshlq_n_s16(q14s16, 3); |
| 165 |
| 166 q0s16 = vaddq_s16(q11s16, q12s16); |
| 167 q2s16 = vsubq_s16(q11s16, q12s16); |
| 168 |
| 169 q11s32 = q9s32; |
| 170 q12s32 = q10s32; |
| 171 |
| 172 d26s16 = vget_low_s16(q13s16); |
| 173 d27s16 = vget_high_s16(q13s16); |
| 174 d28s16 = vget_low_s16(q14s16); |
| 175 d29s16 = vget_high_s16(q14s16); |
| 176 |
| 177 q9s32 = vmlal_s16(q9s32, d28s16, d16s16); |
| 178 q10s32 = vmlal_s16(q10s32, d28s16, d17s16); |
| 179 q11s32 = vmlal_s16(q11s32, d29s16, d16s16); |
| 180 q12s32 = vmlal_s16(q12s32, d29s16, d17s16); |
| 181 |
| 182 q9s32 = vmlal_s16(q9s32, d26s16, d17s16); |
| 183 q10s32 = vmlsl_s16(q10s32, d26s16, d16s16); |
| 184 q11s32 = vmlal_s16(q11s32, d27s16, d17s16); |
| 185 q12s32 = vmlsl_s16(q12s32, d27s16, d16s16); |
| 186 |
| 187 d2s16 = vshrn_n_s32(q9s32, 12); |
| 188 d6s16 = vshrn_n_s32(q10s32, 12); |
| 189 d3s16 = vshrn_n_s32(q11s32, 12); |
| 190 d7s16 = vshrn_n_s32(q12s32, 12); |
| 191 q1s16 = vcombine_s16(d2s16, d3s16); |
| 192 q3s16 = vcombine_s16(d6s16, d7s16); |
| 193 |
| 194 // Part two |
| 195 q9s32 = vdupq_n_s32(12000); |
| 196 q10s32 = vdupq_n_s32(51000); |
| 197 |
| 198 v2tmp2 = vtrnq_s32(vreinterpretq_s32_s16(q0s16), |
| 199 vreinterpretq_s32_s16(q2s16)); |
| 200 v2tmp3 = vtrnq_s32(vreinterpretq_s32_s16(q1s16), |
| 201 vreinterpretq_s32_s16(q3s16)); |
| 202 v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]), // q0 |
| 203 vreinterpretq_s16_s32(v2tmp3.val[0])); // q1 |
| 204 v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]), // q2 |
| 205 vreinterpretq_s16_s32(v2tmp3.val[1])); // q3 |
| 206 |
| 207 q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 208 q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 209 q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]); |
| 210 q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]); |
| 211 |
| 212 q15s16 = vdupq_n_s16(7); |
| 213 q11s16 = vaddq_s16(q11s16, q15s16); |
| 214 q0s16 = vaddq_s16(q11s16, q12s16); |
| 215 q1s16 = vsubq_s16(q11s16, q12s16); |
| 216 |
| 217 q11s32 = q9s32; |
| 218 q12s32 = q10s32; |
| 219 |
| 220 d0s16 = vget_low_s16(q0s16); |
| 221 d1s16 = vget_high_s16(q0s16); |
| 222 d2s16 = vget_low_s16(q1s16); |
| 223 d3s16 = vget_high_s16(q1s16); |
| 224 |
| 225 d0s16 = vshr_n_s16(d0s16, 4); |
| 226 d4s16 = vshr_n_s16(d1s16, 4); |
| 227 d2s16 = vshr_n_s16(d2s16, 4); |
| 228 d6s16 = vshr_n_s16(d3s16, 4); |
| 229 |
| 230 d26s16 = vget_low_s16(q13s16); |
| 231 d27s16 = vget_high_s16(q13s16); |
| 232 d28s16 = vget_low_s16(q14s16); |
| 233 d29s16 = vget_high_s16(q14s16); |
| 234 |
| 235 q9s32 = vmlal_s16(q9s32, d28s16, d16s16); |
| 236 q10s32 = vmlal_s16(q10s32, d28s16, d17s16); |
| 237 q11s32 = vmlal_s16(q11s32, d29s16, d16s16); |
| 238 q12s32 = vmlal_s16(q12s32, d29s16, d17s16); |
| 239 |
| 240 q9s32 = vmlal_s16(q9s32, d26s16, d17s16); |
| 241 q10s32 = vmlsl_s16(q10s32, d26s16, d16s16); |
| 242 q11s32 = vmlal_s16(q11s32, d27s16, d17s16); |
| 243 q12s32 = vmlsl_s16(q12s32, d27s16, d16s16); |
| 244 |
| 245 d1s16 = vshrn_n_s32(q9s32, 16); |
| 246 d3s16 = vshrn_n_s32(q10s32, 16); |
| 247 d5s16 = vshrn_n_s32(q11s32, 16); |
| 248 d7s16 = vshrn_n_s32(q12s32, 16); |
| 249 |
| 250 qEmptys16 = vdupq_n_s16(0); |
| 251 q14u16 = vceqq_s16(q14s16, qEmptys16); |
| 252 q14u16 = vmvnq_u16(q14u16); |
| 253 |
| 254 d28u16 = vget_low_u16(q14u16); |
| 255 d29u16 = vget_high_u16(q14u16); |
| 256 d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d28u16)); |
| 257 d5s16 = vsub_s16(d5s16, vreinterpret_s16_u16(d29u16)); |
| 258 |
| 259 q0s16 = vcombine_s16(d0s16, d1s16); |
| 260 q1s16 = vcombine_s16(d2s16, d3s16); |
| 261 q2s16 = vcombine_s16(d4s16, d5s16); |
| 262 q3s16 = vcombine_s16(d6s16, d7s16); |
| 263 |
| 264 vst1q_s16(output, q0s16); |
| 265 vst1q_s16(output + 8, q1s16); |
| 266 vst1q_s16(output + 16, q2s16); |
| 267 vst1q_s16(output + 24, q3s16); |
| 268 return; |
| 269 } |
| OLD | NEW |
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Chromium Code Reviews
Issue 554673004:
libvpx: Pull from upstream (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/