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| 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 "third_party/libyuv/include/libyuv/basic_types.h" |
| 12 #include "third_party/libyuv/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 |
| 23 void 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 |
| 80 void 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 |
| 180 void 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 |
| 236 void 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 |
| 316 void 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 |
| 363 void 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 |
| 420 void 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 |
| 473 void 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 |
| 520 void 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 |
| 574 void 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 |
OLD | NEW |