| Hangyu Kuang | f047e7c | 2016-07-06 14:21:45 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 The LibYuv 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 "libyuv/basic_types.h" |
| 12 | #include "libyuv/row.h" |
| 13 | |
| 14 | #ifdef __cplusplus |
| 15 | namespace libyuv { |
| 16 | extern "C" { |
| 17 | #endif |
| 18 | |
| 19 | // This module is for GCC MIPS DSPR2 |
| 20 | #if !defined(LIBYUV_DISABLE_MIPS) && \ |
| 21 | defined(__mips_dsp) && (__mips_dsp_rev >= 2) && \ |
| 22 | (_MIPS_SIM == _MIPS_SIM_ABI32) |
| 23 | |
| 24 | void ScaleRowDown2_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 25 | uint8* dst, int dst_width) { |
| 26 | __asm__ __volatile__( |
| 27 | ".set push \n" |
| 28 | ".set noreorder \n" |
| 29 | |
| 30 | "srl $t9, %[dst_width], 4 \n" // iterations -> by 16 |
| 31 | "beqz $t9, 2f \n" |
| 32 | " nop \n" |
| 33 | |
| 34 | "1: \n" |
| 35 | "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| 36 | "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| |
| 37 | "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| |
| 38 | "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| |
| 39 | "lw $t4, 16(%[src_ptr]) \n" // |19|18|17|16| |
| 40 | "lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20| |
| 41 | "lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24| |
| 42 | "lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28| |
| 43 | // TODO(fbarchard): Use odd pixels instead of even. |
| 44 | "precr.qb.ph $t8, $t1, $t0 \n" // |6|4|2|0| |
| 45 | "precr.qb.ph $t0, $t3, $t2 \n" // |14|12|10|8| |
| 46 | "precr.qb.ph $t1, $t5, $t4 \n" // |22|20|18|16| |
| 47 | "precr.qb.ph $t2, $t7, $t6 \n" // |30|28|26|24| |
| 48 | "addiu %[src_ptr], %[src_ptr], 32 \n" |
| 49 | "addiu $t9, $t9, -1 \n" |
| 50 | "sw $t8, 0(%[dst]) \n" |
| 51 | "sw $t0, 4(%[dst]) \n" |
| 52 | "sw $t1, 8(%[dst]) \n" |
| 53 | "sw $t2, 12(%[dst]) \n" |
| 54 | "bgtz $t9, 1b \n" |
| 55 | " addiu %[dst], %[dst], 16 \n" |
| 56 | |
| 57 | "2: \n" |
| 58 | "andi $t9, %[dst_width], 0xf \n" // residue |
| 59 | "beqz $t9, 3f \n" |
| 60 | " nop \n" |
| 61 | |
| 62 | "21: \n" |
| 63 | "lbu $t0, 0(%[src_ptr]) \n" |
| 64 | "addiu %[src_ptr], %[src_ptr], 2 \n" |
| 65 | "addiu $t9, $t9, -1 \n" |
| 66 | "sb $t0, 0(%[dst]) \n" |
| 67 | "bgtz $t9, 21b \n" |
| 68 | " addiu %[dst], %[dst], 1 \n" |
| 69 | |
| 70 | "3: \n" |
| 71 | ".set pop \n" |
| 72 | : [src_ptr] "+r" (src_ptr), |
| 73 | [dst] "+r" (dst) |
| 74 | : [dst_width] "r" (dst_width) |
| 75 | : "t0", "t1", "t2", "t3", "t4", "t5", |
| 76 | "t6", "t7", "t8", "t9" |
| 77 | ); |
| 78 | } |
| 79 | |
| 80 | void ScaleRowDown2Box_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 81 | uint8* dst, int dst_width) { |
| 82 | const uint8* t = src_ptr + src_stride; |
| 83 | |
| 84 | __asm__ __volatile__ ( |
| 85 | ".set push \n" |
| 86 | ".set noreorder \n" |
| 87 | |
| 88 | "srl $t9, %[dst_width], 3 \n" // iterations -> step 8 |
| 89 | "bltz $t9, 2f \n" |
| 90 | " nop \n" |
| 91 | |
| 92 | "1: \n" |
| 93 | "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| 94 | "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| |
| 95 | "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| |
| 96 | "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| |
| 97 | "lw $t4, 0(%[t]) \n" // |19|18|17|16| |
| 98 | "lw $t5, 4(%[t]) \n" // |23|22|21|20| |
| 99 | "lw $t6, 8(%[t]) \n" // |27|26|25|24| |
| 100 | "lw $t7, 12(%[t]) \n" // |31|30|29|28| |
| 101 | "addiu $t9, $t9, -1 \n" |
| 102 | "srl $t8, $t0, 16 \n" // |X|X|3|2| |
| 103 | "ins $t0, $t4, 16, 16 \n" // |17|16|1|0| |
| 104 | "ins $t4, $t8, 0, 16 \n" // |19|18|3|2| |
| 105 | "raddu.w.qb $t0, $t0 \n" // |17+16+1+0| |
| 106 | "raddu.w.qb $t4, $t4 \n" // |19+18+3+2| |
| 107 | "shra_r.w $t0, $t0, 2 \n" // |t0+2|>>2 |
| 108 | "shra_r.w $t4, $t4, 2 \n" // |t4+2|>>2 |
| 109 | "srl $t8, $t1, 16 \n" // |X|X|7|6| |
| 110 | "ins $t1, $t5, 16, 16 \n" // |21|20|5|4| |
| 111 | "ins $t5, $t8, 0, 16 \n" // |22|23|7|6| |
| 112 | "raddu.w.qb $t1, $t1 \n" // |21+20+5+4| |
| 113 | "raddu.w.qb $t5, $t5 \n" // |23+22+7+6| |
| 114 | "shra_r.w $t1, $t1, 2 \n" // |t1+2|>>2 |
| 115 | "shra_r.w $t5, $t5, 2 \n" // |t5+2|>>2 |
| 116 | "srl $t8, $t2, 16 \n" // |X|X|11|10| |
| 117 | "ins $t2, $t6, 16, 16 \n" // |25|24|9|8| |
| 118 | "ins $t6, $t8, 0, 16 \n" // |27|26|11|10| |
| 119 | "raddu.w.qb $t2, $t2 \n" // |25+24+9+8| |
| 120 | "raddu.w.qb $t6, $t6 \n" // |27+26+11+10| |
| 121 | "shra_r.w $t2, $t2, 2 \n" // |t2+2|>>2 |
| 122 | "shra_r.w $t6, $t6, 2 \n" // |t5+2|>>2 |
| 123 | "srl $t8, $t3, 16 \n" // |X|X|15|14| |
| 124 | "ins $t3, $t7, 16, 16 \n" // |29|28|13|12| |
| 125 | "ins $t7, $t8, 0, 16 \n" // |31|30|15|14| |
| 126 | "raddu.w.qb $t3, $t3 \n" // |29+28+13+12| |
| 127 | "raddu.w.qb $t7, $t7 \n" // |31+30+15+14| |
| 128 | "shra_r.w $t3, $t3, 2 \n" // |t3+2|>>2 |
| 129 | "shra_r.w $t7, $t7, 2 \n" // |t7+2|>>2 |
| 130 | "addiu %[src_ptr], %[src_ptr], 16 \n" |
| 131 | "addiu %[t], %[t], 16 \n" |
| 132 | "sb $t0, 0(%[dst]) \n" |
| 133 | "sb $t4, 1(%[dst]) \n" |
| 134 | "sb $t1, 2(%[dst]) \n" |
| 135 | "sb $t5, 3(%[dst]) \n" |
| 136 | "sb $t2, 4(%[dst]) \n" |
| 137 | "sb $t6, 5(%[dst]) \n" |
| 138 | "sb $t3, 6(%[dst]) \n" |
| 139 | "sb $t7, 7(%[dst]) \n" |
| 140 | "bgtz $t9, 1b \n" |
| 141 | " addiu %[dst], %[dst], 8 \n" |
| 142 | |
| 143 | "2: \n" |
| 144 | "andi $t9, %[dst_width], 0x7 \n" // x = residue |
| 145 | "beqz $t9, 3f \n" |
| 146 | " nop \n" |
| 147 | |
| 148 | "21: \n" |
| 149 | "lwr $t1, 0(%[src_ptr]) \n" |
| 150 | "lwl $t1, 3(%[src_ptr]) \n" |
| 151 | "lwr $t2, 0(%[t]) \n" |
| 152 | "lwl $t2, 3(%[t]) \n" |
| 153 | "srl $t8, $t1, 16 \n" |
| 154 | "ins $t1, $t2, 16, 16 \n" |
| 155 | "ins $t2, $t8, 0, 16 \n" |
| 156 | "raddu.w.qb $t1, $t1 \n" |
| 157 | "raddu.w.qb $t2, $t2 \n" |
| 158 | "shra_r.w $t1, $t1, 2 \n" |
| 159 | "shra_r.w $t2, $t2, 2 \n" |
| 160 | "sb $t1, 0(%[dst]) \n" |
| 161 | "sb $t2, 1(%[dst]) \n" |
| 162 | "addiu %[src_ptr], %[src_ptr], 4 \n" |
| 163 | "addiu $t9, $t9, -2 \n" |
| 164 | "addiu %[t], %[t], 4 \n" |
| 165 | "bgtz $t9, 21b \n" |
| 166 | " addiu %[dst], %[dst], 2 \n" |
| 167 | |
| 168 | "3: \n" |
| 169 | ".set pop \n" |
| 170 | |
| 171 | : [src_ptr] "+r" (src_ptr), |
| 172 | [dst] "+r" (dst), [t] "+r" (t) |
| 173 | : [dst_width] "r" (dst_width) |
| 174 | : "t0", "t1", "t2", "t3", "t4", "t5", |
| 175 | "t6", "t7", "t8", "t9" |
| 176 | ); |
| 177 | } |
| 178 | |
| 179 | void ScaleRowDown4_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 180 | uint8* dst, int dst_width) { |
| 181 | __asm__ __volatile__ ( |
| 182 | ".set push \n" |
| 183 | ".set noreorder \n" |
| 184 | |
| 185 | "srl $t9, %[dst_width], 3 \n" |
| 186 | "beqz $t9, 2f \n" |
| 187 | " nop \n" |
| 188 | |
| 189 | "1: \n" |
| 190 | "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| |
| 191 | "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| |
| 192 | "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| |
| 193 | "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| |
| 194 | "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| |
| 195 | "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| |
| 196 | "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| |
| 197 | "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| |
| 198 | "precr.qb.ph $t1, $t2, $t1 \n" // |6|4|2|0| |
| 199 | "precr.qb.ph $t2, $t4, $t3 \n" // |14|12|10|8| |
| 200 | "precr.qb.ph $t5, $t6, $t5 \n" // |22|20|18|16| |
| 201 | "precr.qb.ph $t6, $t8, $t7 \n" // |30|28|26|24| |
| 202 | "precr.qb.ph $t1, $t2, $t1 \n" // |12|8|4|0| |
| 203 | "precr.qb.ph $t5, $t6, $t5 \n" // |28|24|20|16| |
| 204 | "addiu %[src_ptr], %[src_ptr], 32 \n" |
| 205 | "addiu $t9, $t9, -1 \n" |
| 206 | "sw $t1, 0(%[dst]) \n" |
| 207 | "sw $t5, 4(%[dst]) \n" |
| 208 | "bgtz $t9, 1b \n" |
| 209 | " addiu %[dst], %[dst], 8 \n" |
| 210 | |
| 211 | "2: \n" |
| 212 | "andi $t9, %[dst_width], 7 \n" // residue |
| 213 | "beqz $t9, 3f \n" |
| 214 | " nop \n" |
| 215 | |
| 216 | "21: \n" |
| 217 | "lbu $t1, 0(%[src_ptr]) \n" |
| 218 | "addiu %[src_ptr], %[src_ptr], 4 \n" |
| 219 | "addiu $t9, $t9, -1 \n" |
| 220 | "sb $t1, 0(%[dst]) \n" |
| 221 | "bgtz $t9, 21b \n" |
| 222 | " addiu %[dst], %[dst], 1 \n" |
| 223 | |
| 224 | "3: \n" |
| 225 | ".set pop \n" |
| 226 | : [src_ptr] "+r" (src_ptr), |
| 227 | [dst] "+r" (dst) |
| 228 | : [dst_width] "r" (dst_width) |
| 229 | : "t1", "t2", "t3", "t4", "t5", |
| 230 | "t6", "t7", "t8", "t9" |
| 231 | ); |
| 232 | } |
| 233 | |
| 234 | void ScaleRowDown4Box_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 235 | uint8* dst, int dst_width) { |
| 236 | intptr_t stride = src_stride; |
| 237 | const uint8* s1 = src_ptr + stride; |
| 238 | const uint8* s2 = s1 + stride; |
| 239 | const uint8* s3 = s2 + stride; |
| 240 | |
| 241 | __asm__ __volatile__ ( |
| 242 | ".set push \n" |
| 243 | ".set noreorder \n" |
| 244 | |
| 245 | "srl $t9, %[dst_width], 1 \n" |
| 246 | "andi $t8, %[dst_width], 1 \n" |
| 247 | |
| 248 | "1: \n" |
| 249 | "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| 250 | "lw $t1, 0(%[s1]) \n" // |7|6|5|4| |
| 251 | "lw $t2, 0(%[s2]) \n" // |11|10|9|8| |
| 252 | "lw $t3, 0(%[s3]) \n" // |15|14|13|12| |
| 253 | "lw $t4, 4(%[src_ptr]) \n" // |19|18|17|16| |
| 254 | "lw $t5, 4(%[s1]) \n" // |23|22|21|20| |
| 255 | "lw $t6, 4(%[s2]) \n" // |27|26|25|24| |
| 256 | "lw $t7, 4(%[s3]) \n" // |31|30|29|28| |
| 257 | "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| |
| 258 | "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| |
| 259 | "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| |
| 260 | "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| |
| 261 | "raddu.w.qb $t4, $t4 \n" // |19 + 18 + 17 + 16| |
| 262 | "raddu.w.qb $t5, $t5 \n" // |23 + 22 + 21 + 20| |
| 263 | "raddu.w.qb $t6, $t6 \n" // |27 + 26 + 25 + 24| |
| 264 | "raddu.w.qb $t7, $t7 \n" // |31 + 30 + 29 + 28| |
| 265 | "add $t0, $t0, $t1 \n" |
| 266 | "add $t1, $t2, $t3 \n" |
| 267 | "add $t0, $t0, $t1 \n" |
| 268 | "add $t4, $t4, $t5 \n" |
| 269 | "add $t6, $t6, $t7 \n" |
| 270 | "add $t4, $t4, $t6 \n" |
| 271 | "shra_r.w $t0, $t0, 4 \n" |
| 272 | "shra_r.w $t4, $t4, 4 \n" |
| 273 | "sb $t0, 0(%[dst]) \n" |
| 274 | "sb $t4, 1(%[dst]) \n" |
| 275 | "addiu %[src_ptr], %[src_ptr], 8 \n" |
| 276 | "addiu %[s1], %[s1], 8 \n" |
| 277 | "addiu %[s2], %[s2], 8 \n" |
| 278 | "addiu %[s3], %[s3], 8 \n" |
| 279 | "addiu $t9, $t9, -1 \n" |
| 280 | "bgtz $t9, 1b \n" |
| 281 | " addiu %[dst], %[dst], 2 \n" |
| 282 | "beqz $t8, 2f \n" |
| 283 | " nop \n" |
| 284 | |
| 285 | "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| 286 | "lw $t1, 0(%[s1]) \n" // |7|6|5|4| |
| 287 | "lw $t2, 0(%[s2]) \n" // |11|10|9|8| |
| 288 | "lw $t3, 0(%[s3]) \n" // |15|14|13|12| |
| 289 | "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| |
| 290 | "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| |
| 291 | "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| |
| 292 | "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| |
| 293 | "add $t0, $t0, $t1 \n" |
| 294 | "add $t1, $t2, $t3 \n" |
| 295 | "add $t0, $t0, $t1 \n" |
| 296 | "shra_r.w $t0, $t0, 4 \n" |
| 297 | "sb $t0, 0(%[dst]) \n" |
| 298 | |
| 299 | "2: \n" |
| 300 | ".set pop \n" |
| 301 | |
| 302 | : [src_ptr] "+r" (src_ptr), |
| 303 | [dst] "+r" (dst), |
| 304 | [s1] "+r" (s1), |
| 305 | [s2] "+r" (s2), |
| 306 | [s3] "+r" (s3) |
| 307 | : [dst_width] "r" (dst_width) |
| 308 | : "t0", "t1", "t2", "t3", "t4", "t5", |
| 309 | "t6","t7", "t8", "t9" |
| 310 | ); |
| 311 | } |
| 312 | |
| 313 | void ScaleRowDown34_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 314 | uint8* dst, int dst_width) { |
| 315 | __asm__ __volatile__ ( |
| 316 | ".set push \n" |
| 317 | ".set noreorder \n" |
| 318 | "1: \n" |
| 319 | "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| |
| 320 | "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| |
| 321 | "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| |
| 322 | "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| |
| 323 | "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| |
| 324 | "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| |
| 325 | "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| |
| 326 | "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| |
| 327 | "precrq.qb.ph $t0, $t2, $t4 \n" // |7|5|15|13| |
| 328 | "precrq.qb.ph $t9, $t6, $t8 \n" // |23|21|31|30| |
| 329 | "addiu %[dst_width], %[dst_width], -24 \n" |
| 330 | "ins $t1, $t1, 8, 16 \n" // |3|1|0|X| |
| 331 | "ins $t4, $t0, 8, 16 \n" // |X|15|13|12| |
| 332 | "ins $t5, $t5, 8, 16 \n" // |19|17|16|X| |
| 333 | "ins $t8, $t9, 8, 16 \n" // |X|31|29|28| |
| 334 | "addiu %[src_ptr], %[src_ptr], 32 \n" |
| 335 | "packrl.ph $t0, $t3, $t0 \n" // |9|8|7|5| |
| 336 | "packrl.ph $t9, $t7, $t9 \n" // |25|24|23|21| |
| 337 | "prepend $t1, $t2, 8 \n" // |4|3|1|0| |
| 338 | "prepend $t3, $t4, 24 \n" // |15|13|12|11| |
| 339 | "prepend $t5, $t6, 8 \n" // |20|19|17|16| |
| 340 | "prepend $t7, $t8, 24 \n" // |31|29|28|27| |
| 341 | "sw $t1, 0(%[dst]) \n" |
| 342 | "sw $t0, 4(%[dst]) \n" |
| 343 | "sw $t3, 8(%[dst]) \n" |
| 344 | "sw $t5, 12(%[dst]) \n" |
| 345 | "sw $t9, 16(%[dst]) \n" |
| 346 | "sw $t7, 20(%[dst]) \n" |
| 347 | "bnez %[dst_width], 1b \n" |
| 348 | " addiu %[dst], %[dst], 24 \n" |
| 349 | ".set pop \n" |
| 350 | : [src_ptr] "+r" (src_ptr), |
| 351 | [dst] "+r" (dst), |
| 352 | [dst_width] "+r" (dst_width) |
| 353 | : |
| 354 | : "t0", "t1", "t2", "t3", "t4", "t5", |
| 355 | "t6","t7", "t8", "t9" |
| 356 | ); |
| 357 | } |
| 358 | |
| 359 | void ScaleRowDown34_0_Box_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 360 | uint8* d, int dst_width) { |
| 361 | __asm__ __volatile__ ( |
| 362 | ".set push \n" |
| 363 | ".set noreorder \n" |
| 364 | "repl.ph $t3, 3 \n" // 0x00030003 |
| 365 | |
| 366 | "1: \n" |
| 367 | "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| 368 | "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| |
| 369 | "rotr $t2, $t0, 8 \n" // |S0|S3|S2|S1| |
| 370 | "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| |
| 371 | "muleu_s.ph.qbl $t4, $t2, $t3 \n" // |S0*3|S3*3| |
| 372 | "muleu_s.ph.qbl $t5, $t6, $t3 \n" // |T0*3|T3*3| |
| 373 | "andi $t0, $t2, 0xFFFF \n" // |0|0|S2|S1| |
| 374 | "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| |
| 375 | "raddu.w.qb $t0, $t0 \n" |
| 376 | "raddu.w.qb $t1, $t1 \n" |
| 377 | "shra_r.w $t0, $t0, 1 \n" |
| 378 | "shra_r.w $t1, $t1, 1 \n" |
| 379 | "preceu.ph.qbr $t2, $t2 \n" // |0|S2|0|S1| |
| 380 | "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| |
| 381 | "rotr $t2, $t2, 16 \n" // |0|S1|0|S2| |
| 382 | "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| |
| 383 | "addu.ph $t2, $t2, $t4 \n" |
| 384 | "addu.ph $t6, $t6, $t5 \n" |
| 385 | "sll $t5, $t0, 1 \n" |
| 386 | "add $t0, $t5, $t0 \n" |
| 387 | "shra_r.ph $t2, $t2, 2 \n" |
| 388 | "shra_r.ph $t6, $t6, 2 \n" |
| 389 | "shll.ph $t4, $t2, 1 \n" |
| 390 | "addq.ph $t4, $t4, $t2 \n" |
| 391 | "addu $t0, $t0, $t1 \n" |
| 392 | "addiu %[src_ptr], %[src_ptr], 4 \n" |
| 393 | "shra_r.w $t0, $t0, 2 \n" |
| 394 | "addu.ph $t6, $t6, $t4 \n" |
| 395 | "shra_r.ph $t6, $t6, 2 \n" |
| 396 | "srl $t1, $t6, 16 \n" |
| 397 | "addiu %[dst_width], %[dst_width], -3 \n" |
| 398 | "sb $t1, 0(%[d]) \n" |
| 399 | "sb $t0, 1(%[d]) \n" |
| 400 | "sb $t6, 2(%[d]) \n" |
| 401 | "bgtz %[dst_width], 1b \n" |
| 402 | " addiu %[d], %[d], 3 \n" |
| 403 | "3: \n" |
| 404 | ".set pop \n" |
| 405 | : [src_ptr] "+r" (src_ptr), |
| 406 | [src_stride] "+r" (src_stride), |
| 407 | [d] "+r" (d), |
| 408 | [dst_width] "+r" (dst_width) |
| 409 | : |
| 410 | : "t0", "t1", "t2", "t3", |
| 411 | "t4", "t5", "t6" |
| 412 | ); |
| 413 | } |
| 414 | |
| 415 | void ScaleRowDown34_1_Box_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 416 | uint8* d, int dst_width) { |
| 417 | __asm__ __volatile__ ( |
| 418 | ".set push \n" |
| 419 | ".set noreorder \n" |
| 420 | "repl.ph $t2, 3 \n" // 0x00030003 |
| 421 | |
| 422 | "1: \n" |
| 423 | "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| 424 | "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| |
| 425 | "rotr $t4, $t0, 8 \n" // |S0|S3|S2|S1| |
| 426 | "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| |
| 427 | "muleu_s.ph.qbl $t3, $t4, $t2 \n" // |S0*3|S3*3| |
| 428 | "muleu_s.ph.qbl $t5, $t6, $t2 \n" // |T0*3|T3*3| |
| 429 | "andi $t0, $t4, 0xFFFF \n" // |0|0|S2|S1| |
| 430 | "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| |
| 431 | "raddu.w.qb $t0, $t0 \n" |
| 432 | "raddu.w.qb $t1, $t1 \n" |
| 433 | "shra_r.w $t0, $t0, 1 \n" |
| 434 | "shra_r.w $t1, $t1, 1 \n" |
| 435 | "preceu.ph.qbr $t4, $t4 \n" // |0|S2|0|S1| |
| 436 | "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| |
| 437 | "rotr $t4, $t4, 16 \n" // |0|S1|0|S2| |
| 438 | "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| |
| 439 | "addu.ph $t4, $t4, $t3 \n" |
| 440 | "addu.ph $t6, $t6, $t5 \n" |
| 441 | "shra_r.ph $t6, $t6, 2 \n" |
| 442 | "shra_r.ph $t4, $t4, 2 \n" |
| 443 | "addu.ph $t6, $t6, $t4 \n" |
| 444 | "addiu %[src_ptr], %[src_ptr], 4 \n" |
| 445 | "shra_r.ph $t6, $t6, 1 \n" |
| 446 | "addu $t0, $t0, $t1 \n" |
| 447 | "addiu %[dst_width], %[dst_width], -3 \n" |
| 448 | "shra_r.w $t0, $t0, 1 \n" |
| 449 | "srl $t1, $t6, 16 \n" |
| 450 | "sb $t1, 0(%[d]) \n" |
| 451 | "sb $t0, 1(%[d]) \n" |
| 452 | "sb $t6, 2(%[d]) \n" |
| 453 | "bgtz %[dst_width], 1b \n" |
| 454 | " addiu %[d], %[d], 3 \n" |
| 455 | "3: \n" |
| 456 | ".set pop \n" |
| 457 | : [src_ptr] "+r" (src_ptr), |
| 458 | [src_stride] "+r" (src_stride), |
| 459 | [d] "+r" (d), |
| 460 | [dst_width] "+r" (dst_width) |
| 461 | : |
| 462 | : "t0", "t1", "t2", "t3", |
| 463 | "t4", "t5", "t6" |
| 464 | ); |
| 465 | } |
| 466 | |
| 467 | void ScaleRowDown38_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 468 | uint8* dst, int dst_width) { |
| 469 | __asm__ __volatile__ ( |
| 470 | ".set push \n" |
| 471 | ".set noreorder \n" |
| 472 | |
| 473 | "1: \n" |
| 474 | "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| 475 | "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| |
| 476 | "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| |
| 477 | "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| |
| 478 | "lw $t4, 16(%[src_ptr]) \n" // |19|18|17|16| |
| 479 | "lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20| |
| 480 | "lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24| |
| 481 | "lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28| |
| 482 | "wsbh $t0, $t0 \n" // |2|3|0|1| |
| 483 | "wsbh $t6, $t6 \n" // |26|27|24|25| |
| 484 | "srl $t0, $t0, 8 \n" // |X|2|3|0| |
| 485 | "srl $t3, $t3, 16 \n" // |X|X|15|14| |
| 486 | "srl $t5, $t5, 16 \n" // |X|X|23|22| |
| 487 | "srl $t7, $t7, 16 \n" // |X|X|31|30| |
| 488 | "ins $t1, $t2, 24, 8 \n" // |8|6|5|4| |
| 489 | "ins $t6, $t5, 0, 8 \n" // |26|27|24|22| |
| 490 | "ins $t1, $t0, 0, 16 \n" // |8|6|3|0| |
| 491 | "ins $t6, $t7, 24, 8 \n" // |30|27|24|22| |
| 492 | "prepend $t2, $t3, 24 \n" // |X|15|14|11| |
| 493 | "ins $t4, $t4, 16, 8 \n" // |19|16|17|X| |
| 494 | "ins $t4, $t2, 0, 16 \n" // |19|16|14|11| |
| 495 | "addiu %[src_ptr], %[src_ptr], 32 \n" |
| 496 | "addiu %[dst_width], %[dst_width], -12 \n" |
| 497 | "addiu $t8,%[dst_width], -12 \n" |
| 498 | "sw $t1, 0(%[dst]) \n" |
| 499 | "sw $t4, 4(%[dst]) \n" |
| 500 | "sw $t6, 8(%[dst]) \n" |
| 501 | "bgez $t8, 1b \n" |
| 502 | " addiu %[dst], %[dst], 12 \n" |
| 503 | ".set pop \n" |
| 504 | : [src_ptr] "+r" (src_ptr), |
| 505 | [dst] "+r" (dst), |
| 506 | [dst_width] "+r" (dst_width) |
| 507 | : |
| 508 | : "t0", "t1", "t2", "t3", "t4", |
| 509 | "t5", "t6", "t7", "t8" |
| 510 | ); |
| 511 | } |
| 512 | |
| 513 | void ScaleRowDown38_2_Box_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| 514 | uint8* dst_ptr, int dst_width) { |
| 515 | intptr_t stride = src_stride; |
| 516 | const uint8* t = src_ptr + stride; |
| 517 | const int c = 0x2AAA; |
| 518 | |
| 519 | __asm__ __volatile__ ( |
| 520 | ".set push \n" |
| 521 | ".set noreorder \n" |
| 522 | |
| 523 | "1: \n" |
| 524 | "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| 525 | "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| |
| 526 | "lw $t2, 0(%[t]) \n" // |T3|T2|T1|T0| |
| 527 | "lw $t3, 4(%[t]) \n" // |T7|T6|T5|T4| |
| 528 | "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| |
| 529 | "packrl.ph $t4, $t1, $t3 \n" // |S7|S6|T7|T6| |
| 530 | "packrl.ph $t5, $t3, $t1 \n" // |T5|T4|S5|S4| |
| 531 | "raddu.w.qb $t4, $t4 \n" // S7+S6+T7+T6 |
| 532 | "raddu.w.qb $t5, $t5 \n" // T5+T4+S5+S4 |
| 533 | "precrq.qb.ph $t6, $t0, $t2 \n" // |S3|S1|T3|T1| |
| 534 | "precrq.qb.ph $t6, $t6, $t6 \n" // |S3|T3|S3|T3| |
| 535 | "srl $t4, $t4, 2 \n" // t4 / 4 |
| 536 | "srl $t6, $t6, 16 \n" // |0|0|S3|T3| |
| 537 | "raddu.w.qb $t6, $t6 \n" // 0+0+S3+T3 |
| 538 | "addu $t6, $t5, $t6 \n" |
| 539 | "mul $t6, $t6, %[c] \n" // t6 * 0x2AAA |
| 540 | "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| |
| 541 | "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| |
| 542 | "raddu.w.qb $t0, $t0 \n" // S2+S1+S0+0 |
| 543 | "raddu.w.qb $t2, $t2 \n" // T2+T1+T0+0 |
| 544 | "addu $t0, $t0, $t2 \n" |
| 545 | "mul $t0, $t0, %[c] \n" // t0 * 0x2AAA |
| 546 | "addiu %[src_ptr], %[src_ptr], 8 \n" |
| 547 | "addiu %[t], %[t], 8 \n" |
| 548 | "addiu %[dst_width], %[dst_width], -3 \n" |
| 549 | "addiu %[dst_ptr], %[dst_ptr], 3 \n" |
| 550 | "srl $t6, $t6, 16 \n" |
| 551 | "srl $t0, $t0, 16 \n" |
| 552 | "sb $t4, -1(%[dst_ptr]) \n" |
| 553 | "sb $t6, -2(%[dst_ptr]) \n" |
| 554 | "bgtz %[dst_width], 1b \n" |
| 555 | " sb $t0, -3(%[dst_ptr]) \n" |
| 556 | ".set pop \n" |
| 557 | : [src_ptr] "+r" (src_ptr), |
| 558 | [dst_ptr] "+r" (dst_ptr), |
| 559 | [t] "+r" (t), |
| 560 | [dst_width] "+r" (dst_width) |
| 561 | : [c] "r" (c) |
| 562 | : "t0", "t1", "t2", "t3", "t4", "t5", "t6" |
| 563 | ); |
| 564 | } |
| 565 | |
| 566 | void ScaleRowDown38_3_Box_DSPR2(const uint8* src_ptr, |
| 567 | ptrdiff_t src_stride, |
| 568 | uint8* dst_ptr, int dst_width) { |
| 569 | intptr_t stride = src_stride; |
| 570 | const uint8* s1 = src_ptr + stride; |
| 571 | stride += stride; |
| 572 | const uint8* s2 = src_ptr + stride; |
| 573 | const int c1 = 0x1C71; |
| 574 | const int c2 = 0x2AAA; |
| 575 | |
| 576 | __asm__ __volatile__ ( |
| 577 | ".set push \n" |
| 578 | ".set noreorder \n" |
| 579 | |
| 580 | "1: \n" |
| 581 | "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| 582 | "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| |
| 583 | "lw $t2, 0(%[s1]) \n" // |T3|T2|T1|T0| |
| 584 | "lw $t3, 4(%[s1]) \n" // |T7|T6|T5|T4| |
| 585 | "lw $t4, 0(%[s2]) \n" // |R3|R2|R1|R0| |
| 586 | "lw $t5, 4(%[s2]) \n" // |R7|R6|R5|R4| |
| 587 | "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| |
| 588 | "packrl.ph $t6, $t1, $t3 \n" // |S7|S6|T7|T6| |
| 589 | "raddu.w.qb $t6, $t6 \n" // S7+S6+T7+T6 |
| 590 | "packrl.ph $t7, $t3, $t1 \n" // |T5|T4|S5|S4| |
| 591 | "raddu.w.qb $t7, $t7 \n" // T5+T4+S5+S4 |
| 592 | "sll $t8, $t5, 16 \n" // |R5|R4|0|0| |
| 593 | "raddu.w.qb $t8, $t8 \n" // R5+R4 |
| 594 | "addu $t7, $t7, $t8 \n" |
| 595 | "srl $t8, $t5, 16 \n" // |0|0|R7|R6| |
| 596 | "raddu.w.qb $t8, $t8 \n" // R7 + R6 |
| 597 | "addu $t6, $t6, $t8 \n" |
| 598 | "mul $t6, $t6, %[c2] \n" // t6 * 0x2AAA |
| 599 | "precrq.qb.ph $t8, $t0, $t2 \n" // |S3|S1|T3|T1| |
| 600 | "precrq.qb.ph $t8, $t8, $t4 \n" // |S3|T3|R3|R1| |
| 601 | "srl $t8, $t8, 8 \n" // |0|S3|T3|R3| |
| 602 | "raddu.w.qb $t8, $t8 \n" // S3 + T3 + R3 |
| 603 | "addu $t7, $t7, $t8 \n" |
| 604 | "mul $t7, $t7, %[c1] \n" // t7 * 0x1C71 |
| 605 | "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| |
| 606 | "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| |
| 607 | "sll $t4, $t4, 8 \n" // |R2|R1|R0|0| |
| 608 | "raddu.w.qb $t0, $t0 \n" |
| 609 | "raddu.w.qb $t2, $t2 \n" |
| 610 | "raddu.w.qb $t4, $t4 \n" |
| 611 | "addu $t0, $t0, $t2 \n" |
| 612 | "addu $t0, $t0, $t4 \n" |
| 613 | "mul $t0, $t0, %[c1] \n" // t0 * 0x1C71 |
| 614 | "addiu %[src_ptr], %[src_ptr], 8 \n" |
| 615 | "addiu %[s1], %[s1], 8 \n" |
| 616 | "addiu %[s2], %[s2], 8 \n" |
| 617 | "addiu %[dst_width], %[dst_width], -3 \n" |
| 618 | "addiu %[dst_ptr], %[dst_ptr], 3 \n" |
| 619 | "srl $t6, $t6, 16 \n" |
| 620 | "srl $t7, $t7, 16 \n" |
| 621 | "srl $t0, $t0, 16 \n" |
| 622 | "sb $t6, -1(%[dst_ptr]) \n" |
| 623 | "sb $t7, -2(%[dst_ptr]) \n" |
| 624 | "bgtz %[dst_width], 1b \n" |
| 625 | " sb $t0, -3(%[dst_ptr]) \n" |
| 626 | ".set pop \n" |
| 627 | : [src_ptr] "+r" (src_ptr), |
| 628 | [dst_ptr] "+r" (dst_ptr), |
| 629 | [s1] "+r" (s1), |
| 630 | [s2] "+r" (s2), |
| 631 | [dst_width] "+r" (dst_width) |
| 632 | : [c1] "r" (c1), [c2] "r" (c2) |
| 633 | : "t0", "t1", "t2", "t3", "t4", |
| 634 | "t5", "t6", "t7", "t8" |
| 635 | ); |
| 636 | } |
| 637 | |
| 638 | #endif // defined(__mips_dsp) && (__mips_dsp_rev >= 2) |
| 639 | |
| 640 | #ifdef __cplusplus |
| 641 | } // extern "C" |
| 642 | } // namespace libyuv |
| 643 | #endif |
| 644 | |