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_MIPS_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 ".p2align 2 \n" 35 "1: \n" 36 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 37 "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| 38 "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| 39 "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| 40 "lw $t4, 16(%[src_ptr]) \n" // |19|18|17|16| 41 "lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20| 42 "lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24| 43 "lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28| 44 // TODO(fbarchard): Use odd pixels instead of even. 45 "precr.qb.ph $t8, $t1, $t0 \n" // |6|4|2|0| 46 "precr.qb.ph $t0, $t3, $t2 \n" // |14|12|10|8| 47 "precr.qb.ph $t1, $t5, $t4 \n" // |22|20|18|16| 48 "precr.qb.ph $t2, $t7, $t6 \n" // |30|28|26|24| 49 "addiu %[src_ptr], %[src_ptr], 32 \n" 50 "addiu $t9, $t9, -1 \n" 51 "sw $t8, 0(%[dst]) \n" 52 "sw $t0, 4(%[dst]) \n" 53 "sw $t1, 8(%[dst]) \n" 54 "sw $t2, 12(%[dst]) \n" 55 "bgtz $t9, 1b \n" 56 " addiu %[dst], %[dst], 16 \n" 57 58 "2: \n" 59 "andi $t9, %[dst_width], 0xf \n" // residue 60 "beqz $t9, 3f \n" 61 " nop \n" 62 63 "21: \n" 64 "lbu $t0, 0(%[src_ptr]) \n" 65 "addiu %[src_ptr], %[src_ptr], 2 \n" 66 "addiu $t9, $t9, -1 \n" 67 "sb $t0, 0(%[dst]) \n" 68 "bgtz $t9, 21b \n" 69 " addiu %[dst], %[dst], 1 \n" 70 71 "3: \n" 72 ".set pop \n" 73 : [src_ptr] "+r" (src_ptr), 74 [dst] "+r" (dst) 75 : [dst_width] "r" (dst_width) 76 : "t0", "t1", "t2", "t3", "t4", "t5", 77 "t6", "t7", "t8", "t9" 78 ); 79 } 80 81 void ScaleRowDown2Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 82 uint8* dst, int dst_width) { 83 const uint8* t = src_ptr + src_stride; 84 85 __asm__ __volatile__ ( 86 ".set push \n" 87 ".set noreorder \n" 88 89 "srl $t9, %[dst_width], 3 \n" // iterations -> step 8 90 "bltz $t9, 2f \n" 91 " nop \n" 92 93 ".p2align 2 \n" 94 "1: \n" 95 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 96 "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| 97 "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| 98 "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| 99 "lw $t4, 0(%[t]) \n" // |19|18|17|16| 100 "lw $t5, 4(%[t]) \n" // |23|22|21|20| 101 "lw $t6, 8(%[t]) \n" // |27|26|25|24| 102 "lw $t7, 12(%[t]) \n" // |31|30|29|28| 103 "addiu $t9, $t9, -1 \n" 104 "srl $t8, $t0, 16 \n" // |X|X|3|2| 105 "ins $t0, $t4, 16, 16 \n" // |17|16|1|0| 106 "ins $t4, $t8, 0, 16 \n" // |19|18|3|2| 107 "raddu.w.qb $t0, $t0 \n" // |17+16+1+0| 108 "raddu.w.qb $t4, $t4 \n" // |19+18+3+2| 109 "shra_r.w $t0, $t0, 2 \n" // |t0+2|>>2 110 "shra_r.w $t4, $t4, 2 \n" // |t4+2|>>2 111 "srl $t8, $t1, 16 \n" // |X|X|7|6| 112 "ins $t1, $t5, 16, 16 \n" // |21|20|5|4| 113 "ins $t5, $t8, 0, 16 \n" // |22|23|7|6| 114 "raddu.w.qb $t1, $t1 \n" // |21+20+5+4| 115 "raddu.w.qb $t5, $t5 \n" // |23+22+7+6| 116 "shra_r.w $t1, $t1, 2 \n" // |t1+2|>>2 117 "shra_r.w $t5, $t5, 2 \n" // |t5+2|>>2 118 "srl $t8, $t2, 16 \n" // |X|X|11|10| 119 "ins $t2, $t6, 16, 16 \n" // |25|24|9|8| 120 "ins $t6, $t8, 0, 16 \n" // |27|26|11|10| 121 "raddu.w.qb $t2, $t2 \n" // |25+24+9+8| 122 "raddu.w.qb $t6, $t6 \n" // |27+26+11+10| 123 "shra_r.w $t2, $t2, 2 \n" // |t2+2|>>2 124 "shra_r.w $t6, $t6, 2 \n" // |t5+2|>>2 125 "srl $t8, $t3, 16 \n" // |X|X|15|14| 126 "ins $t3, $t7, 16, 16 \n" // |29|28|13|12| 127 "ins $t7, $t8, 0, 16 \n" // |31|30|15|14| 128 "raddu.w.qb $t3, $t3 \n" // |29+28+13+12| 129 "raddu.w.qb $t7, $t7 \n" // |31+30+15+14| 130 "shra_r.w $t3, $t3, 2 \n" // |t3+2|>>2 131 "shra_r.w $t7, $t7, 2 \n" // |t7+2|>>2 132 "addiu %[src_ptr], %[src_ptr], 16 \n" 133 "addiu %[t], %[t], 16 \n" 134 "sb $t0, 0(%[dst]) \n" 135 "sb $t4, 1(%[dst]) \n" 136 "sb $t1, 2(%[dst]) \n" 137 "sb $t5, 3(%[dst]) \n" 138 "sb $t2, 4(%[dst]) \n" 139 "sb $t6, 5(%[dst]) \n" 140 "sb $t3, 6(%[dst]) \n" 141 "sb $t7, 7(%[dst]) \n" 142 "bgtz $t9, 1b \n" 143 " addiu %[dst], %[dst], 8 \n" 144 145 "2: \n" 146 "andi $t9, %[dst_width], 0x7 \n" // x = residue 147 "beqz $t9, 3f \n" 148 " nop \n" 149 150 "21: \n" 151 "lwr $t1, 0(%[src_ptr]) \n" 152 "lwl $t1, 3(%[src_ptr]) \n" 153 "lwr $t2, 0(%[t]) \n" 154 "lwl $t2, 3(%[t]) \n" 155 "srl $t8, $t1, 16 \n" 156 "ins $t1, $t2, 16, 16 \n" 157 "ins $t2, $t8, 0, 16 \n" 158 "raddu.w.qb $t1, $t1 \n" 159 "raddu.w.qb $t2, $t2 \n" 160 "shra_r.w $t1, $t1, 2 \n" 161 "shra_r.w $t2, $t2, 2 \n" 162 "sb $t1, 0(%[dst]) \n" 163 "sb $t2, 1(%[dst]) \n" 164 "addiu %[src_ptr], %[src_ptr], 4 \n" 165 "addiu $t9, $t9, -2 \n" 166 "addiu %[t], %[t], 4 \n" 167 "bgtz $t9, 21b \n" 168 " addiu %[dst], %[dst], 2 \n" 169 170 "3: \n" 171 ".set pop \n" 172 173 : [src_ptr] "+r" (src_ptr), 174 [dst] "+r" (dst), [t] "+r" (t) 175 : [dst_width] "r" (dst_width) 176 : "t0", "t1", "t2", "t3", "t4", "t5", 177 "t6", "t7", "t8", "t9" 178 ); 179 } 180 181 void ScaleRowDown4_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 182 uint8* dst, int dst_width) { 183 __asm__ __volatile__ ( 184 ".set push \n" 185 ".set noreorder \n" 186 187 "srl $t9, %[dst_width], 3 \n" 188 "beqz $t9, 2f \n" 189 " nop \n" 190 191 ".p2align 2 \n" 192 "1: \n" 193 "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| 194 "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| 195 "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| 196 "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| 197 "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| 198 "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| 199 "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| 200 "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| 201 "precr.qb.ph $t1, $t2, $t1 \n" // |6|4|2|0| 202 "precr.qb.ph $t2, $t4, $t3 \n" // |14|12|10|8| 203 "precr.qb.ph $t5, $t6, $t5 \n" // |22|20|18|16| 204 "precr.qb.ph $t6, $t8, $t7 \n" // |30|28|26|24| 205 "precr.qb.ph $t1, $t2, $t1 \n" // |12|8|4|0| 206 "precr.qb.ph $t5, $t6, $t5 \n" // |28|24|20|16| 207 "addiu %[src_ptr], %[src_ptr], 32 \n" 208 "addiu $t9, $t9, -1 \n" 209 "sw $t1, 0(%[dst]) \n" 210 "sw $t5, 4(%[dst]) \n" 211 "bgtz $t9, 1b \n" 212 " addiu %[dst], %[dst], 8 \n" 213 214 "2: \n" 215 "andi $t9, %[dst_width], 7 \n" // residue 216 "beqz $t9, 3f \n" 217 " nop \n" 218 219 "21: \n" 220 "lbu $t1, 0(%[src_ptr]) \n" 221 "addiu %[src_ptr], %[src_ptr], 4 \n" 222 "addiu $t9, $t9, -1 \n" 223 "sb $t1, 0(%[dst]) \n" 224 "bgtz $t9, 21b \n" 225 " addiu %[dst], %[dst], 1 \n" 226 227 "3: \n" 228 ".set pop \n" 229 : [src_ptr] "+r" (src_ptr), 230 [dst] "+r" (dst) 231 : [dst_width] "r" (dst_width) 232 : "t1", "t2", "t3", "t4", "t5", 233 "t6", "t7", "t8", "t9" 234 ); 235 } 236 237 void ScaleRowDown4Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 238 uint8* dst, int dst_width) { 239 intptr_t stride = src_stride; 240 const uint8* s1 = src_ptr + stride; 241 const uint8* s2 = s1 + stride; 242 const uint8* s3 = s2 + stride; 243 244 __asm__ __volatile__ ( 245 ".set push \n" 246 ".set noreorder \n" 247 248 "srl $t9, %[dst_width], 1 \n" 249 "andi $t8, %[dst_width], 1 \n" 250 251 ".p2align 2 \n" 252 "1: \n" 253 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 254 "lw $t1, 0(%[s1]) \n" // |7|6|5|4| 255 "lw $t2, 0(%[s2]) \n" // |11|10|9|8| 256 "lw $t3, 0(%[s3]) \n" // |15|14|13|12| 257 "lw $t4, 4(%[src_ptr]) \n" // |19|18|17|16| 258 "lw $t5, 4(%[s1]) \n" // |23|22|21|20| 259 "lw $t6, 4(%[s2]) \n" // |27|26|25|24| 260 "lw $t7, 4(%[s3]) \n" // |31|30|29|28| 261 "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| 262 "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| 263 "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| 264 "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| 265 "raddu.w.qb $t4, $t4 \n" // |19 + 18 + 17 + 16| 266 "raddu.w.qb $t5, $t5 \n" // |23 + 22 + 21 + 20| 267 "raddu.w.qb $t6, $t6 \n" // |27 + 26 + 25 + 24| 268 "raddu.w.qb $t7, $t7 \n" // |31 + 30 + 29 + 28| 269 "add $t0, $t0, $t1 \n" 270 "add $t1, $t2, $t3 \n" 271 "add $t0, $t0, $t1 \n" 272 "add $t4, $t4, $t5 \n" 273 "add $t6, $t6, $t7 \n" 274 "add $t4, $t4, $t6 \n" 275 "shra_r.w $t0, $t0, 4 \n" 276 "shra_r.w $t4, $t4, 4 \n" 277 "sb $t0, 0(%[dst]) \n" 278 "sb $t4, 1(%[dst]) \n" 279 "addiu %[src_ptr], %[src_ptr], 8 \n" 280 "addiu %[s1], %[s1], 8 \n" 281 "addiu %[s2], %[s2], 8 \n" 282 "addiu %[s3], %[s3], 8 \n" 283 "addiu $t9, $t9, -1 \n" 284 "bgtz $t9, 1b \n" 285 " addiu %[dst], %[dst], 2 \n" 286 "beqz $t8, 2f \n" 287 " nop \n" 288 289 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 290 "lw $t1, 0(%[s1]) \n" // |7|6|5|4| 291 "lw $t2, 0(%[s2]) \n" // |11|10|9|8| 292 "lw $t3, 0(%[s3]) \n" // |15|14|13|12| 293 "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| 294 "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| 295 "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| 296 "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| 297 "add $t0, $t0, $t1 \n" 298 "add $t1, $t2, $t3 \n" 299 "add $t0, $t0, $t1 \n" 300 "shra_r.w $t0, $t0, 4 \n" 301 "sb $t0, 0(%[dst]) \n" 302 303 "2: \n" 304 ".set pop \n" 305 306 : [src_ptr] "+r" (src_ptr), 307 [dst] "+r" (dst), 308 [s1] "+r" (s1), 309 [s2] "+r" (s2), 310 [s3] "+r" (s3) 311 : [dst_width] "r" (dst_width) 312 : "t0", "t1", "t2", "t3", "t4", "t5", 313 "t6","t7", "t8", "t9" 314 ); 315 } 316 317 void ScaleRowDown34_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 318 uint8* dst, int dst_width) { 319 __asm__ __volatile__ ( 320 ".set push \n" 321 ".set noreorder \n" 322 ".p2align 2 \n" 323 "1: \n" 324 "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| 325 "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| 326 "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| 327 "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| 328 "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| 329 "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| 330 "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| 331 "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| 332 "precrq.qb.ph $t0, $t2, $t4 \n" // |7|5|15|13| 333 "precrq.qb.ph $t9, $t6, $t8 \n" // |23|21|31|30| 334 "addiu %[dst_width], %[dst_width], -24 \n" 335 "ins $t1, $t1, 8, 16 \n" // |3|1|0|X| 336 "ins $t4, $t0, 8, 16 \n" // |X|15|13|12| 337 "ins $t5, $t5, 8, 16 \n" // |19|17|16|X| 338 "ins $t8, $t9, 8, 16 \n" // |X|31|29|28| 339 "addiu %[src_ptr], %[src_ptr], 32 \n" 340 "packrl.ph $t0, $t3, $t0 \n" // |9|8|7|5| 341 "packrl.ph $t9, $t7, $t9 \n" // |25|24|23|21| 342 "prepend $t1, $t2, 8 \n" // |4|3|1|0| 343 "prepend $t3, $t4, 24 \n" // |15|13|12|11| 344 "prepend $t5, $t6, 8 \n" // |20|19|17|16| 345 "prepend $t7, $t8, 24 \n" // |31|29|28|27| 346 "sw $t1, 0(%[dst]) \n" 347 "sw $t0, 4(%[dst]) \n" 348 "sw $t3, 8(%[dst]) \n" 349 "sw $t5, 12(%[dst]) \n" 350 "sw $t9, 16(%[dst]) \n" 351 "sw $t7, 20(%[dst]) \n" 352 "bnez %[dst_width], 1b \n" 353 " addiu %[dst], %[dst], 24 \n" 354 ".set pop \n" 355 : [src_ptr] "+r" (src_ptr), 356 [dst] "+r" (dst), 357 [dst_width] "+r" (dst_width) 358 : 359 : "t0", "t1", "t2", "t3", "t4", "t5", 360 "t6","t7", "t8", "t9" 361 ); 362 } 363 364 void ScaleRowDown34_0_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 365 uint8* d, int dst_width) { 366 __asm__ __volatile__ ( 367 ".set push \n" 368 ".set noreorder \n" 369 "repl.ph $t3, 3 \n" // 0x00030003 370 371 ".p2align 2 \n" 372 "1: \n" 373 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 374 "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| 375 "rotr $t2, $t0, 8 \n" // |S0|S3|S2|S1| 376 "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| 377 "muleu_s.ph.qbl $t4, $t2, $t3 \n" // |S0*3|S3*3| 378 "muleu_s.ph.qbl $t5, $t6, $t3 \n" // |T0*3|T3*3| 379 "andi $t0, $t2, 0xFFFF \n" // |0|0|S2|S1| 380 "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| 381 "raddu.w.qb $t0, $t0 \n" 382 "raddu.w.qb $t1, $t1 \n" 383 "shra_r.w $t0, $t0, 1 \n" 384 "shra_r.w $t1, $t1, 1 \n" 385 "preceu.ph.qbr $t2, $t2 \n" // |0|S2|0|S1| 386 "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| 387 "rotr $t2, $t2, 16 \n" // |0|S1|0|S2| 388 "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| 389 "addu.ph $t2, $t2, $t4 \n" 390 "addu.ph $t6, $t6, $t5 \n" 391 "sll $t5, $t0, 1 \n" 392 "add $t0, $t5, $t0 \n" 393 "shra_r.ph $t2, $t2, 2 \n" 394 "shra_r.ph $t6, $t6, 2 \n" 395 "shll.ph $t4, $t2, 1 \n" 396 "addq.ph $t4, $t4, $t2 \n" 397 "addu $t0, $t0, $t1 \n" 398 "addiu %[src_ptr], %[src_ptr], 4 \n" 399 "shra_r.w $t0, $t0, 2 \n" 400 "addu.ph $t6, $t6, $t4 \n" 401 "shra_r.ph $t6, $t6, 2 \n" 402 "srl $t1, $t6, 16 \n" 403 "addiu %[dst_width], %[dst_width], -3 \n" 404 "sb $t1, 0(%[d]) \n" 405 "sb $t0, 1(%[d]) \n" 406 "sb $t6, 2(%[d]) \n" 407 "bgtz %[dst_width], 1b \n" 408 " addiu %[d], %[d], 3 \n" 409 "3: \n" 410 ".set pop \n" 411 : [src_ptr] "+r" (src_ptr), 412 [src_stride] "+r" (src_stride), 413 [d] "+r" (d), 414 [dst_width] "+r" (dst_width) 415 : 416 : "t0", "t1", "t2", "t3", 417 "t4", "t5", "t6" 418 ); 419 } 420 421 void ScaleRowDown34_1_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 422 uint8* d, int dst_width) { 423 __asm__ __volatile__ ( 424 ".set push \n" 425 ".set noreorder \n" 426 "repl.ph $t2, 3 \n" // 0x00030003 427 428 ".p2align 2 \n" 429 "1: \n" 430 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 431 "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| 432 "rotr $t4, $t0, 8 \n" // |S0|S3|S2|S1| 433 "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| 434 "muleu_s.ph.qbl $t3, $t4, $t2 \n" // |S0*3|S3*3| 435 "muleu_s.ph.qbl $t5, $t6, $t2 \n" // |T0*3|T3*3| 436 "andi $t0, $t4, 0xFFFF \n" // |0|0|S2|S1| 437 "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| 438 "raddu.w.qb $t0, $t0 \n" 439 "raddu.w.qb $t1, $t1 \n" 440 "shra_r.w $t0, $t0, 1 \n" 441 "shra_r.w $t1, $t1, 1 \n" 442 "preceu.ph.qbr $t4, $t4 \n" // |0|S2|0|S1| 443 "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| 444 "rotr $t4, $t4, 16 \n" // |0|S1|0|S2| 445 "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| 446 "addu.ph $t4, $t4, $t3 \n" 447 "addu.ph $t6, $t6, $t5 \n" 448 "shra_r.ph $t6, $t6, 2 \n" 449 "shra_r.ph $t4, $t4, 2 \n" 450 "addu.ph $t6, $t6, $t4 \n" 451 "addiu %[src_ptr], %[src_ptr], 4 \n" 452 "shra_r.ph $t6, $t6, 1 \n" 453 "addu $t0, $t0, $t1 \n" 454 "addiu %[dst_width], %[dst_width], -3 \n" 455 "shra_r.w $t0, $t0, 1 \n" 456 "srl $t1, $t6, 16 \n" 457 "sb $t1, 0(%[d]) \n" 458 "sb $t0, 1(%[d]) \n" 459 "sb $t6, 2(%[d]) \n" 460 "bgtz %[dst_width], 1b \n" 461 " addiu %[d], %[d], 3 \n" 462 "3: \n" 463 ".set pop \n" 464 : [src_ptr] "+r" (src_ptr), 465 [src_stride] "+r" (src_stride), 466 [d] "+r" (d), 467 [dst_width] "+r" (dst_width) 468 : 469 : "t0", "t1", "t2", "t3", 470 "t4", "t5", "t6" 471 ); 472 } 473 474 void ScaleRowDown38_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 475 uint8* dst, int dst_width) { 476 __asm__ __volatile__ ( 477 ".set push \n" 478 ".set noreorder \n" 479 480 ".p2align 2 \n" 481 "1: \n" 482 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 483 "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| 484 "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| 485 "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| 486 "lw $t4, 16(%[src_ptr]) \n" // |19|18|17|16| 487 "lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20| 488 "lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24| 489 "lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28| 490 "wsbh $t0, $t0 \n" // |2|3|0|1| 491 "wsbh $t6, $t6 \n" // |26|27|24|25| 492 "srl $t0, $t0, 8 \n" // |X|2|3|0| 493 "srl $t3, $t3, 16 \n" // |X|X|15|14| 494 "srl $t5, $t5, 16 \n" // |X|X|23|22| 495 "srl $t7, $t7, 16 \n" // |X|X|31|30| 496 "ins $t1, $t2, 24, 8 \n" // |8|6|5|4| 497 "ins $t6, $t5, 0, 8 \n" // |26|27|24|22| 498 "ins $t1, $t0, 0, 16 \n" // |8|6|3|0| 499 "ins $t6, $t7, 24, 8 \n" // |30|27|24|22| 500 "prepend $t2, $t3, 24 \n" // |X|15|14|11| 501 "ins $t4, $t4, 16, 8 \n" // |19|16|17|X| 502 "ins $t4, $t2, 0, 16 \n" // |19|16|14|11| 503 "addiu %[src_ptr], %[src_ptr], 32 \n" 504 "addiu %[dst_width], %[dst_width], -12 \n" 505 "addiu $t8,%[dst_width], -12 \n" 506 "sw $t1, 0(%[dst]) \n" 507 "sw $t4, 4(%[dst]) \n" 508 "sw $t6, 8(%[dst]) \n" 509 "bgez $t8, 1b \n" 510 " addiu %[dst], %[dst], 12 \n" 511 ".set pop \n" 512 : [src_ptr] "+r" (src_ptr), 513 [dst] "+r" (dst), 514 [dst_width] "+r" (dst_width) 515 : 516 : "t0", "t1", "t2", "t3", "t4", 517 "t5", "t6", "t7", "t8" 518 ); 519 } 520 521 void ScaleRowDown38_2_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 522 uint8* dst_ptr, int dst_width) { 523 intptr_t stride = src_stride; 524 const uint8* t = src_ptr + stride; 525 const int c = 0x2AAA; 526 527 __asm__ __volatile__ ( 528 ".set push \n" 529 ".set noreorder \n" 530 531 ".p2align 2 \n" 532 "1: \n" 533 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 534 "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| 535 "lw $t2, 0(%[t]) \n" // |T3|T2|T1|T0| 536 "lw $t3, 4(%[t]) \n" // |T7|T6|T5|T4| 537 "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| 538 "packrl.ph $t4, $t1, $t3 \n" // |S7|S6|T7|T6| 539 "packrl.ph $t5, $t3, $t1 \n" // |T5|T4|S5|S4| 540 "raddu.w.qb $t4, $t4 \n" // S7+S6+T7+T6 541 "raddu.w.qb $t5, $t5 \n" // T5+T4+S5+S4 542 "precrq.qb.ph $t6, $t0, $t2 \n" // |S3|S1|T3|T1| 543 "precrq.qb.ph $t6, $t6, $t6 \n" // |S3|T3|S3|T3| 544 "srl $t4, $t4, 2 \n" // t4 / 4 545 "srl $t6, $t6, 16 \n" // |0|0|S3|T3| 546 "raddu.w.qb $t6, $t6 \n" // 0+0+S3+T3 547 "addu $t6, $t5, $t6 \n" 548 "mul $t6, $t6, %[c] \n" // t6 * 0x2AAA 549 "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| 550 "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| 551 "raddu.w.qb $t0, $t0 \n" // S2+S1+S0+0 552 "raddu.w.qb $t2, $t2 \n" // T2+T1+T0+0 553 "addu $t0, $t0, $t2 \n" 554 "mul $t0, $t0, %[c] \n" // t0 * 0x2AAA 555 "addiu %[src_ptr], %[src_ptr], 8 \n" 556 "addiu %[t], %[t], 8 \n" 557 "addiu %[dst_width], %[dst_width], -3 \n" 558 "addiu %[dst_ptr], %[dst_ptr], 3 \n" 559 "srl $t6, $t6, 16 \n" 560 "srl $t0, $t0, 16 \n" 561 "sb $t4, -1(%[dst_ptr]) \n" 562 "sb $t6, -2(%[dst_ptr]) \n" 563 "bgtz %[dst_width], 1b \n" 564 " sb $t0, -3(%[dst_ptr]) \n" 565 ".set pop \n" 566 : [src_ptr] "+r" (src_ptr), 567 [dst_ptr] "+r" (dst_ptr), 568 [t] "+r" (t), 569 [dst_width] "+r" (dst_width) 570 : [c] "r" (c) 571 : "t0", "t1", "t2", "t3", "t4", "t5", "t6" 572 ); 573 } 574 575 void ScaleRowDown38_3_Box_MIPS_DSPR2(const uint8* src_ptr, 576 ptrdiff_t src_stride, 577 uint8* dst_ptr, int dst_width) { 578 intptr_t stride = src_stride; 579 const uint8* s1 = src_ptr + stride; 580 stride += stride; 581 const uint8* s2 = src_ptr + stride; 582 const int c1 = 0x1C71; 583 const int c2 = 0x2AAA; 584 585 __asm__ __volatile__ ( 586 ".set push \n" 587 ".set noreorder \n" 588 589 ".p2align 2 \n" 590 "1: \n" 591 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 592 "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| 593 "lw $t2, 0(%[s1]) \n" // |T3|T2|T1|T0| 594 "lw $t3, 4(%[s1]) \n" // |T7|T6|T5|T4| 595 "lw $t4, 0(%[s2]) \n" // |R3|R2|R1|R0| 596 "lw $t5, 4(%[s2]) \n" // |R7|R6|R5|R4| 597 "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| 598 "packrl.ph $t6, $t1, $t3 \n" // |S7|S6|T7|T6| 599 "raddu.w.qb $t6, $t6 \n" // S7+S6+T7+T6 600 "packrl.ph $t7, $t3, $t1 \n" // |T5|T4|S5|S4| 601 "raddu.w.qb $t7, $t7 \n" // T5+T4+S5+S4 602 "sll $t8, $t5, 16 \n" // |R5|R4|0|0| 603 "raddu.w.qb $t8, $t8 \n" // R5+R4 604 "addu $t7, $t7, $t8 \n" 605 "srl $t8, $t5, 16 \n" // |0|0|R7|R6| 606 "raddu.w.qb $t8, $t8 \n" // R7 + R6 607 "addu $t6, $t6, $t8 \n" 608 "mul $t6, $t6, %[c2] \n" // t6 * 0x2AAA 609 "precrq.qb.ph $t8, $t0, $t2 \n" // |S3|S1|T3|T1| 610 "precrq.qb.ph $t8, $t8, $t4 \n" // |S3|T3|R3|R1| 611 "srl $t8, $t8, 8 \n" // |0|S3|T3|R3| 612 "raddu.w.qb $t8, $t8 \n" // S3 + T3 + R3 613 "addu $t7, $t7, $t8 \n" 614 "mul $t7, $t7, %[c1] \n" // t7 * 0x1C71 615 "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| 616 "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| 617 "sll $t4, $t4, 8 \n" // |R2|R1|R0|0| 618 "raddu.w.qb $t0, $t0 \n" 619 "raddu.w.qb $t2, $t2 \n" 620 "raddu.w.qb $t4, $t4 \n" 621 "addu $t0, $t0, $t2 \n" 622 "addu $t0, $t0, $t4 \n" 623 "mul $t0, $t0, %[c1] \n" // t0 * 0x1C71 624 "addiu %[src_ptr], %[src_ptr], 8 \n" 625 "addiu %[s1], %[s1], 8 \n" 626 "addiu %[s2], %[s2], 8 \n" 627 "addiu %[dst_width], %[dst_width], -3 \n" 628 "addiu %[dst_ptr], %[dst_ptr], 3 \n" 629 "srl $t6, $t6, 16 \n" 630 "srl $t7, $t7, 16 \n" 631 "srl $t0, $t0, 16 \n" 632 "sb $t6, -1(%[dst_ptr]) \n" 633 "sb $t7, -2(%[dst_ptr]) \n" 634 "bgtz %[dst_width], 1b \n" 635 " sb $t0, -3(%[dst_ptr]) \n" 636 ".set pop \n" 637 : [src_ptr] "+r" (src_ptr), 638 [dst_ptr] "+r" (dst_ptr), 639 [s1] "+r" (s1), 640 [s2] "+r" (s2), 641 [dst_width] "+r" (dst_width) 642 : [c1] "r" (c1), [c2] "r" (c2) 643 : "t0", "t1", "t2", "t3", "t4", 644 "t5", "t6", "t7", "t8" 645 ); 646 } 647 648 #endif // defined(__mips_dsp) && (__mips_dsp_rev >= 2) 649 650 #ifdef __cplusplus 651 } // extern "C" 652 } // namespace libyuv 653 #endif 654 655
