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 15namespace libyuv { 16extern "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 23void ScaleRowDown2_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 24 uint8* dst, int dst_width) { 25 __asm__ __volatile__( 26 ".set push \n" 27 ".set noreorder \n" 28 29 "srl $t9, %[dst_width], 4 \n" // iterations -> by 16 30 "beqz $t9, 2f \n" 31 " nop \n" 32 33 ".p2align 2 \n" 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 80void ScaleRowDown2Box_MIPS_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 ".p2align 2 \n" 93 "1: \n" 94 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 95 "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| 96 "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| 97 "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| 98 "lw $t4, 0(%[t]) \n" // |19|18|17|16| 99 "lw $t5, 4(%[t]) \n" // |23|22|21|20| 100 "lw $t6, 8(%[t]) \n" // |27|26|25|24| 101 "lw $t7, 12(%[t]) \n" // |31|30|29|28| 102 "addiu $t9, $t9, -1 \n" 103 "srl $t8, $t0, 16 \n" // |X|X|3|2| 104 "ins $t0, $t4, 16, 16 \n" // |17|16|1|0| 105 "ins $t4, $t8, 0, 16 \n" // |19|18|3|2| 106 "raddu.w.qb $t0, $t0 \n" // |17+16+1+0| 107 "raddu.w.qb $t4, $t4 \n" // |19+18+3+2| 108 "shra_r.w $t0, $t0, 2 \n" // |t0+2|>>2 109 "shra_r.w $t4, $t4, 2 \n" // |t4+2|>>2 110 "srl $t8, $t1, 16 \n" // |X|X|7|6| 111 "ins $t1, $t5, 16, 16 \n" // |21|20|5|4| 112 "ins $t5, $t8, 0, 16 \n" // |22|23|7|6| 113 "raddu.w.qb $t1, $t1 \n" // |21+20+5+4| 114 "raddu.w.qb $t5, $t5 \n" // |23+22+7+6| 115 "shra_r.w $t1, $t1, 2 \n" // |t1+2|>>2 116 "shra_r.w $t5, $t5, 2 \n" // |t5+2|>>2 117 "srl $t8, $t2, 16 \n" // |X|X|11|10| 118 "ins $t2, $t6, 16, 16 \n" // |25|24|9|8| 119 "ins $t6, $t8, 0, 16 \n" // |27|26|11|10| 120 "raddu.w.qb $t2, $t2 \n" // |25+24+9+8| 121 "raddu.w.qb $t6, $t6 \n" // |27+26+11+10| 122 "shra_r.w $t2, $t2, 2 \n" // |t2+2|>>2 123 "shra_r.w $t6, $t6, 2 \n" // |t5+2|>>2 124 "srl $t8, $t3, 16 \n" // |X|X|15|14| 125 "ins $t3, $t7, 16, 16 \n" // |29|28|13|12| 126 "ins $t7, $t8, 0, 16 \n" // |31|30|15|14| 127 "raddu.w.qb $t3, $t3 \n" // |29+28+13+12| 128 "raddu.w.qb $t7, $t7 \n" // |31+30+15+14| 129 "shra_r.w $t3, $t3, 2 \n" // |t3+2|>>2 130 "shra_r.w $t7, $t7, 2 \n" // |t7+2|>>2 131 "addiu %[src_ptr], %[src_ptr], 16 \n" 132 "addiu %[t], %[t], 16 \n" 133 "sb $t0, 0(%[dst]) \n" 134 "sb $t4, 1(%[dst]) \n" 135 "sb $t1, 2(%[dst]) \n" 136 "sb $t5, 3(%[dst]) \n" 137 "sb $t2, 4(%[dst]) \n" 138 "sb $t6, 5(%[dst]) \n" 139 "sb $t3, 6(%[dst]) \n" 140 "sb $t7, 7(%[dst]) \n" 141 "bgtz $t9, 1b \n" 142 " addiu %[dst], %[dst], 8 \n" 143 144 "2: \n" 145 "andi $t9, %[dst_width], 0x7 \n" // x = residue 146 "beqz $t9, 3f \n" 147 " nop \n" 148 149 "21: \n" 150 "lwr $t1, 0(%[src_ptr]) \n" 151 "lwl $t1, 3(%[src_ptr]) \n" 152 "lwr $t2, 0(%[t]) \n" 153 "lwl $t2, 3(%[t]) \n" 154 "srl $t8, $t1, 16 \n" 155 "ins $t1, $t2, 16, 16 \n" 156 "ins $t2, $t8, 0, 16 \n" 157 "raddu.w.qb $t1, $t1 \n" 158 "raddu.w.qb $t2, $t2 \n" 159 "shra_r.w $t1, $t1, 2 \n" 160 "shra_r.w $t2, $t2, 2 \n" 161 "sb $t1, 0(%[dst]) \n" 162 "sb $t2, 1(%[dst]) \n" 163 "addiu %[src_ptr], %[src_ptr], 4 \n" 164 "addiu $t9, $t9, -2 \n" 165 "addiu %[t], %[t], 4 \n" 166 "bgtz $t9, 21b \n" 167 " addiu %[dst], %[dst], 2 \n" 168 169 "3: \n" 170 ".set pop \n" 171 172 : [src_ptr] "+r" (src_ptr), 173 [dst] "+r" (dst), [t] "+r" (t) 174 : [dst_width] "r" (dst_width) 175 : "t0", "t1", "t2", "t3", "t4", "t5", 176 "t6", "t7", "t8", "t9" 177 ); 178} 179 180void ScaleRowDown4_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 181 uint8* dst, int dst_width) { 182 __asm__ __volatile__ ( 183 ".set push \n" 184 ".set noreorder \n" 185 186 "srl $t9, %[dst_width], 3 \n" 187 "beqz $t9, 2f \n" 188 " nop \n" 189 190 ".p2align 2 \n" 191 "1: \n" 192 "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| 193 "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| 194 "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| 195 "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| 196 "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| 197 "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| 198 "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| 199 "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| 200 "precr.qb.ph $t1, $t2, $t1 \n" // |6|4|2|0| 201 "precr.qb.ph $t2, $t4, $t3 \n" // |14|12|10|8| 202 "precr.qb.ph $t5, $t6, $t5 \n" // |22|20|18|16| 203 "precr.qb.ph $t6, $t8, $t7 \n" // |30|28|26|24| 204 "precr.qb.ph $t1, $t2, $t1 \n" // |12|8|4|0| 205 "precr.qb.ph $t5, $t6, $t5 \n" // |28|24|20|16| 206 "addiu %[src_ptr], %[src_ptr], 32 \n" 207 "addiu $t9, $t9, -1 \n" 208 "sw $t1, 0(%[dst]) \n" 209 "sw $t5, 4(%[dst]) \n" 210 "bgtz $t9, 1b \n" 211 " addiu %[dst], %[dst], 8 \n" 212 213 "2: \n" 214 "andi $t9, %[dst_width], 7 \n" // residue 215 "beqz $t9, 3f \n" 216 " nop \n" 217 218 "21: \n" 219 "lbu $t1, 0(%[src_ptr]) \n" 220 "addiu %[src_ptr], %[src_ptr], 4 \n" 221 "addiu $t9, $t9, -1 \n" 222 "sb $t1, 0(%[dst]) \n" 223 "bgtz $t9, 21b \n" 224 " addiu %[dst], %[dst], 1 \n" 225 226 "3: \n" 227 ".set pop \n" 228 : [src_ptr] "+r" (src_ptr), 229 [dst] "+r" (dst) 230 : [dst_width] "r" (dst_width) 231 : "t1", "t2", "t3", "t4", "t5", 232 "t6", "t7", "t8", "t9" 233 ); 234} 235 236void ScaleRowDown4Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 237 uint8* dst, int dst_width) { 238 intptr_t stride = src_stride; 239 const uint8* s1 = src_ptr + stride; 240 const uint8* s2 = s1 + stride; 241 const uint8* s3 = s2 + stride; 242 243 __asm__ __volatile__ ( 244 ".set push \n" 245 ".set noreorder \n" 246 247 "srl $t9, %[dst_width], 1 \n" 248 "andi $t8, %[dst_width], 1 \n" 249 250 ".p2align 2 \n" 251 "1: \n" 252 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 253 "lw $t1, 0(%[s1]) \n" // |7|6|5|4| 254 "lw $t2, 0(%[s2]) \n" // |11|10|9|8| 255 "lw $t3, 0(%[s3]) \n" // |15|14|13|12| 256 "lw $t4, 4(%[src_ptr]) \n" // |19|18|17|16| 257 "lw $t5, 4(%[s1]) \n" // |23|22|21|20| 258 "lw $t6, 4(%[s2]) \n" // |27|26|25|24| 259 "lw $t7, 4(%[s3]) \n" // |31|30|29|28| 260 "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| 261 "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| 262 "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| 263 "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| 264 "raddu.w.qb $t4, $t4 \n" // |19 + 18 + 17 + 16| 265 "raddu.w.qb $t5, $t5 \n" // |23 + 22 + 21 + 20| 266 "raddu.w.qb $t6, $t6 \n" // |27 + 26 + 25 + 24| 267 "raddu.w.qb $t7, $t7 \n" // |31 + 30 + 29 + 28| 268 "add $t0, $t0, $t1 \n" 269 "add $t1, $t2, $t3 \n" 270 "add $t0, $t0, $t1 \n" 271 "add $t4, $t4, $t5 \n" 272 "add $t6, $t6, $t7 \n" 273 "add $t4, $t4, $t6 \n" 274 "shra_r.w $t0, $t0, 4 \n" 275 "shra_r.w $t4, $t4, 4 \n" 276 "sb $t0, 0(%[dst]) \n" 277 "sb $t4, 1(%[dst]) \n" 278 "addiu %[src_ptr], %[src_ptr], 8 \n" 279 "addiu %[s1], %[s1], 8 \n" 280 "addiu %[s2], %[s2], 8 \n" 281 "addiu %[s3], %[s3], 8 \n" 282 "addiu $t9, $t9, -1 \n" 283 "bgtz $t9, 1b \n" 284 " addiu %[dst], %[dst], 2 \n" 285 "beqz $t8, 2f \n" 286 " nop \n" 287 288 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 289 "lw $t1, 0(%[s1]) \n" // |7|6|5|4| 290 "lw $t2, 0(%[s2]) \n" // |11|10|9|8| 291 "lw $t3, 0(%[s3]) \n" // |15|14|13|12| 292 "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| 293 "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| 294 "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| 295 "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| 296 "add $t0, $t0, $t1 \n" 297 "add $t1, $t2, $t3 \n" 298 "add $t0, $t0, $t1 \n" 299 "shra_r.w $t0, $t0, 4 \n" 300 "sb $t0, 0(%[dst]) \n" 301 302 "2: \n" 303 ".set pop \n" 304 305 : [src_ptr] "+r" (src_ptr), 306 [dst] "+r" (dst), 307 [s1] "+r" (s1), 308 [s2] "+r" (s2), 309 [s3] "+r" (s3) 310 : [dst_width] "r" (dst_width) 311 : "t0", "t1", "t2", "t3", "t4", "t5", 312 "t6","t7", "t8", "t9" 313 ); 314} 315 316void ScaleRowDown34_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 317 uint8* dst, int dst_width) { 318 __asm__ __volatile__ ( 319 ".set push \n" 320 ".set noreorder \n" 321 ".p2align 2 \n" 322 "1: \n" 323 "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| 324 "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| 325 "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| 326 "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| 327 "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| 328 "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| 329 "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| 330 "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| 331 "precrq.qb.ph $t0, $t2, $t4 \n" // |7|5|15|13| 332 "precrq.qb.ph $t9, $t6, $t8 \n" // |23|21|31|30| 333 "addiu %[dst_width], %[dst_width], -24 \n" 334 "ins $t1, $t1, 8, 16 \n" // |3|1|0|X| 335 "ins $t4, $t0, 8, 16 \n" // |X|15|13|12| 336 "ins $t5, $t5, 8, 16 \n" // |19|17|16|X| 337 "ins $t8, $t9, 8, 16 \n" // |X|31|29|28| 338 "addiu %[src_ptr], %[src_ptr], 32 \n" 339 "packrl.ph $t0, $t3, $t0 \n" // |9|8|7|5| 340 "packrl.ph $t9, $t7, $t9 \n" // |25|24|23|21| 341 "prepend $t1, $t2, 8 \n" // |4|3|1|0| 342 "prepend $t3, $t4, 24 \n" // |15|13|12|11| 343 "prepend $t5, $t6, 8 \n" // |20|19|17|16| 344 "prepend $t7, $t8, 24 \n" // |31|29|28|27| 345 "sw $t1, 0(%[dst]) \n" 346 "sw $t0, 4(%[dst]) \n" 347 "sw $t3, 8(%[dst]) \n" 348 "sw $t5, 12(%[dst]) \n" 349 "sw $t9, 16(%[dst]) \n" 350 "sw $t7, 20(%[dst]) \n" 351 "bnez %[dst_width], 1b \n" 352 " addiu %[dst], %[dst], 24 \n" 353 ".set pop \n" 354 : [src_ptr] "+r" (src_ptr), 355 [dst] "+r" (dst), 356 [dst_width] "+r" (dst_width) 357 : 358 : "t0", "t1", "t2", "t3", "t4", "t5", 359 "t6","t7", "t8", "t9" 360 ); 361} 362 363void ScaleRowDown34_0_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 364 uint8* d, int dst_width) { 365 __asm__ __volatile__ ( 366 ".set push \n" 367 ".set noreorder \n" 368 "repl.ph $t3, 3 \n" // 0x00030003 369 370 ".p2align 2 \n" 371 "1: \n" 372 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 373 "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| 374 "rotr $t2, $t0, 8 \n" // |S0|S3|S2|S1| 375 "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| 376 "muleu_s.ph.qbl $t4, $t2, $t3 \n" // |S0*3|S3*3| 377 "muleu_s.ph.qbl $t5, $t6, $t3 \n" // |T0*3|T3*3| 378 "andi $t0, $t2, 0xFFFF \n" // |0|0|S2|S1| 379 "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| 380 "raddu.w.qb $t0, $t0 \n" 381 "raddu.w.qb $t1, $t1 \n" 382 "shra_r.w $t0, $t0, 1 \n" 383 "shra_r.w $t1, $t1, 1 \n" 384 "preceu.ph.qbr $t2, $t2 \n" // |0|S2|0|S1| 385 "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| 386 "rotr $t2, $t2, 16 \n" // |0|S1|0|S2| 387 "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| 388 "addu.ph $t2, $t2, $t4 \n" 389 "addu.ph $t6, $t6, $t5 \n" 390 "sll $t5, $t0, 1 \n" 391 "add $t0, $t5, $t0 \n" 392 "shra_r.ph $t2, $t2, 2 \n" 393 "shra_r.ph $t6, $t6, 2 \n" 394 "shll.ph $t4, $t2, 1 \n" 395 "addq.ph $t4, $t4, $t2 \n" 396 "addu $t0, $t0, $t1 \n" 397 "addiu %[src_ptr], %[src_ptr], 4 \n" 398 "shra_r.w $t0, $t0, 2 \n" 399 "addu.ph $t6, $t6, $t4 \n" 400 "shra_r.ph $t6, $t6, 2 \n" 401 "srl $t1, $t6, 16 \n" 402 "addiu %[dst_width], %[dst_width], -3 \n" 403 "sb $t1, 0(%[d]) \n" 404 "sb $t0, 1(%[d]) \n" 405 "sb $t6, 2(%[d]) \n" 406 "bgtz %[dst_width], 1b \n" 407 " addiu %[d], %[d], 3 \n" 408 "3: \n" 409 ".set pop \n" 410 : [src_ptr] "+r" (src_ptr), 411 [src_stride] "+r" (src_stride), 412 [d] "+r" (d), 413 [dst_width] "+r" (dst_width) 414 : 415 : "t0", "t1", "t2", "t3", 416 "t4", "t5", "t6" 417 ); 418} 419 420void ScaleRowDown34_1_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 421 uint8* d, int dst_width) { 422 __asm__ __volatile__ ( 423 ".set push \n" 424 ".set noreorder \n" 425 "repl.ph $t2, 3 \n" // 0x00030003 426 427 ".p2align 2 \n" 428 "1: \n" 429 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 430 "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| 431 "rotr $t4, $t0, 8 \n" // |S0|S3|S2|S1| 432 "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| 433 "muleu_s.ph.qbl $t3, $t4, $t2 \n" // |S0*3|S3*3| 434 "muleu_s.ph.qbl $t5, $t6, $t2 \n" // |T0*3|T3*3| 435 "andi $t0, $t4, 0xFFFF \n" // |0|0|S2|S1| 436 "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| 437 "raddu.w.qb $t0, $t0 \n" 438 "raddu.w.qb $t1, $t1 \n" 439 "shra_r.w $t0, $t0, 1 \n" 440 "shra_r.w $t1, $t1, 1 \n" 441 "preceu.ph.qbr $t4, $t4 \n" // |0|S2|0|S1| 442 "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| 443 "rotr $t4, $t4, 16 \n" // |0|S1|0|S2| 444 "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| 445 "addu.ph $t4, $t4, $t3 \n" 446 "addu.ph $t6, $t6, $t5 \n" 447 "shra_r.ph $t6, $t6, 2 \n" 448 "shra_r.ph $t4, $t4, 2 \n" 449 "addu.ph $t6, $t6, $t4 \n" 450 "addiu %[src_ptr], %[src_ptr], 4 \n" 451 "shra_r.ph $t6, $t6, 1 \n" 452 "addu $t0, $t0, $t1 \n" 453 "addiu %[dst_width], %[dst_width], -3 \n" 454 "shra_r.w $t0, $t0, 1 \n" 455 "srl $t1, $t6, 16 \n" 456 "sb $t1, 0(%[d]) \n" 457 "sb $t0, 1(%[d]) \n" 458 "sb $t6, 2(%[d]) \n" 459 "bgtz %[dst_width], 1b \n" 460 " addiu %[d], %[d], 3 \n" 461 "3: \n" 462 ".set pop \n" 463 : [src_ptr] "+r" (src_ptr), 464 [src_stride] "+r" (src_stride), 465 [d] "+r" (d), 466 [dst_width] "+r" (dst_width) 467 : 468 : "t0", "t1", "t2", "t3", 469 "t4", "t5", "t6" 470 ); 471} 472 473void ScaleRowDown38_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 474 uint8* dst, int dst_width) { 475 __asm__ __volatile__ ( 476 ".set push \n" 477 ".set noreorder \n" 478 479 ".p2align 2 \n" 480 "1: \n" 481 "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| 482 "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| 483 "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| 484 "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| 485 "lw $t4, 16(%[src_ptr]) \n" // |19|18|17|16| 486 "lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20| 487 "lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24| 488 "lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28| 489 "wsbh $t0, $t0 \n" // |2|3|0|1| 490 "wsbh $t6, $t6 \n" // |26|27|24|25| 491 "srl $t0, $t0, 8 \n" // |X|2|3|0| 492 "srl $t3, $t3, 16 \n" // |X|X|15|14| 493 "srl $t5, $t5, 16 \n" // |X|X|23|22| 494 "srl $t7, $t7, 16 \n" // |X|X|31|30| 495 "ins $t1, $t2, 24, 8 \n" // |8|6|5|4| 496 "ins $t6, $t5, 0, 8 \n" // |26|27|24|22| 497 "ins $t1, $t0, 0, 16 \n" // |8|6|3|0| 498 "ins $t6, $t7, 24, 8 \n" // |30|27|24|22| 499 "prepend $t2, $t3, 24 \n" // |X|15|14|11| 500 "ins $t4, $t4, 16, 8 \n" // |19|16|17|X| 501 "ins $t4, $t2, 0, 16 \n" // |19|16|14|11| 502 "addiu %[src_ptr], %[src_ptr], 32 \n" 503 "addiu %[dst_width], %[dst_width], -12 \n" 504 "addiu $t8,%[dst_width], -12 \n" 505 "sw $t1, 0(%[dst]) \n" 506 "sw $t4, 4(%[dst]) \n" 507 "sw $t6, 8(%[dst]) \n" 508 "bgez $t8, 1b \n" 509 " addiu %[dst], %[dst], 12 \n" 510 ".set pop \n" 511 : [src_ptr] "+r" (src_ptr), 512 [dst] "+r" (dst), 513 [dst_width] "+r" (dst_width) 514 : 515 : "t0", "t1", "t2", "t3", "t4", 516 "t5", "t6", "t7", "t8" 517 ); 518} 519 520void ScaleRowDown38_2_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, 521 uint8* dst_ptr, int dst_width) { 522 intptr_t stride = src_stride; 523 const uint8* t = src_ptr + stride; 524 const int c = 0x2AAA; 525 526 __asm__ __volatile__ ( 527 ".set push \n" 528 ".set noreorder \n" 529 530 ".p2align 2 \n" 531 "1: \n" 532 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 533 "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| 534 "lw $t2, 0(%[t]) \n" // |T3|T2|T1|T0| 535 "lw $t3, 4(%[t]) \n" // |T7|T6|T5|T4| 536 "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| 537 "packrl.ph $t4, $t1, $t3 \n" // |S7|S6|T7|T6| 538 "packrl.ph $t5, $t3, $t1 \n" // |T5|T4|S5|S4| 539 "raddu.w.qb $t4, $t4 \n" // S7+S6+T7+T6 540 "raddu.w.qb $t5, $t5 \n" // T5+T4+S5+S4 541 "precrq.qb.ph $t6, $t0, $t2 \n" // |S3|S1|T3|T1| 542 "precrq.qb.ph $t6, $t6, $t6 \n" // |S3|T3|S3|T3| 543 "srl $t4, $t4, 2 \n" // t4 / 4 544 "srl $t6, $t6, 16 \n" // |0|0|S3|T3| 545 "raddu.w.qb $t6, $t6 \n" // 0+0+S3+T3 546 "addu $t6, $t5, $t6 \n" 547 "mul $t6, $t6, %[c] \n" // t6 * 0x2AAA 548 "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| 549 "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| 550 "raddu.w.qb $t0, $t0 \n" // S2+S1+S0+0 551 "raddu.w.qb $t2, $t2 \n" // T2+T1+T0+0 552 "addu $t0, $t0, $t2 \n" 553 "mul $t0, $t0, %[c] \n" // t0 * 0x2AAA 554 "addiu %[src_ptr], %[src_ptr], 8 \n" 555 "addiu %[t], %[t], 8 \n" 556 "addiu %[dst_width], %[dst_width], -3 \n" 557 "addiu %[dst_ptr], %[dst_ptr], 3 \n" 558 "srl $t6, $t6, 16 \n" 559 "srl $t0, $t0, 16 \n" 560 "sb $t4, -1(%[dst_ptr]) \n" 561 "sb $t6, -2(%[dst_ptr]) \n" 562 "bgtz %[dst_width], 1b \n" 563 " sb $t0, -3(%[dst_ptr]) \n" 564 ".set pop \n" 565 : [src_ptr] "+r" (src_ptr), 566 [dst_ptr] "+r" (dst_ptr), 567 [t] "+r" (t), 568 [dst_width] "+r" (dst_width) 569 : [c] "r" (c) 570 : "t0", "t1", "t2", "t3", "t4", "t5", "t6" 571 ); 572} 573 574void ScaleRowDown38_3_Box_MIPS_DSPR2(const uint8* src_ptr, 575 ptrdiff_t src_stride, 576 uint8* dst_ptr, int dst_width) { 577 intptr_t stride = src_stride; 578 const uint8* s1 = src_ptr + stride; 579 stride += stride; 580 const uint8* s2 = src_ptr + stride; 581 const int c1 = 0x1C71; 582 const int c2 = 0x2AAA; 583 584 __asm__ __volatile__ ( 585 ".set push \n" 586 ".set noreorder \n" 587 588 ".p2align 2 \n" 589 "1: \n" 590 "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| 591 "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| 592 "lw $t2, 0(%[s1]) \n" // |T3|T2|T1|T0| 593 "lw $t3, 4(%[s1]) \n" // |T7|T6|T5|T4| 594 "lw $t4, 0(%[s2]) \n" // |R3|R2|R1|R0| 595 "lw $t5, 4(%[s2]) \n" // |R7|R6|R5|R4| 596 "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| 597 "packrl.ph $t6, $t1, $t3 \n" // |S7|S6|T7|T6| 598 "raddu.w.qb $t6, $t6 \n" // S7+S6+T7+T6 599 "packrl.ph $t7, $t3, $t1 \n" // |T5|T4|S5|S4| 600 "raddu.w.qb $t7, $t7 \n" // T5+T4+S5+S4 601 "sll $t8, $t5, 16 \n" // |R5|R4|0|0| 602 "raddu.w.qb $t8, $t8 \n" // R5+R4 603 "addu $t7, $t7, $t8 \n" 604 "srl $t8, $t5, 16 \n" // |0|0|R7|R6| 605 "raddu.w.qb $t8, $t8 \n" // R7 + R6 606 "addu $t6, $t6, $t8 \n" 607 "mul $t6, $t6, %[c2] \n" // t6 * 0x2AAA 608 "precrq.qb.ph $t8, $t0, $t2 \n" // |S3|S1|T3|T1| 609 "precrq.qb.ph $t8, $t8, $t4 \n" // |S3|T3|R3|R1| 610 "srl $t8, $t8, 8 \n" // |0|S3|T3|R3| 611 "raddu.w.qb $t8, $t8 \n" // S3 + T3 + R3 612 "addu $t7, $t7, $t8 \n" 613 "mul $t7, $t7, %[c1] \n" // t7 * 0x1C71 614 "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| 615 "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| 616 "sll $t4, $t4, 8 \n" // |R2|R1|R0|0| 617 "raddu.w.qb $t0, $t0 \n" 618 "raddu.w.qb $t2, $t2 \n" 619 "raddu.w.qb $t4, $t4 \n" 620 "addu $t0, $t0, $t2 \n" 621 "addu $t0, $t0, $t4 \n" 622 "mul $t0, $t0, %[c1] \n" // t0 * 0x1C71 623 "addiu %[src_ptr], %[src_ptr], 8 \n" 624 "addiu %[s1], %[s1], 8 \n" 625 "addiu %[s2], %[s2], 8 \n" 626 "addiu %[dst_width], %[dst_width], -3 \n" 627 "addiu %[dst_ptr], %[dst_ptr], 3 \n" 628 "srl $t6, $t6, 16 \n" 629 "srl $t7, $t7, 16 \n" 630 "srl $t0, $t0, 16 \n" 631 "sb $t6, -1(%[dst_ptr]) \n" 632 "sb $t7, -2(%[dst_ptr]) \n" 633 "bgtz %[dst_width], 1b \n" 634 " sb $t0, -3(%[dst_ptr]) \n" 635 ".set pop \n" 636 : [src_ptr] "+r" (src_ptr), 637 [dst_ptr] "+r" (dst_ptr), 638 [s1] "+r" (s1), 639 [s2] "+r" (s2), 640 [dst_width] "+r" (dst_width) 641 : [c1] "r" (c1), [c2] "r" (c2) 642 : "t0", "t1", "t2", "t3", "t4", 643 "t5", "t6", "t7", "t8" 644 ); 645} 646 647#endif // defined(__mips_dsp) && (__mips_dsp_rev >= 2) 648 649#ifdef __cplusplus 650} // extern "C" 651} // namespace libyuv 652#endif 653 654