1/* 2 * AltiVec-enhanced yuv2yuvX 3 * 4 * Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org> 5 * based on the equivalent C code in swscale.c 6 * 7 * This file is part of FFmpeg. 8 * 9 * FFmpeg is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Lesser General Public 11 * License as published by the Free Software Foundation; either 12 * version 2.1 of the License, or (at your option) any later version. 13 * 14 * FFmpeg is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with FFmpeg; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 22 */ 23 24#define vzero vec_splat_s32(0) 25 26static inline void 27altivec_packIntArrayToCharArray(int *val, uint8_t* dest, int dstW) { 28 register int i; 29 vector unsigned int altivec_vectorShiftInt19 = 30 vec_add(vec_splat_u32(10), vec_splat_u32(9)); 31 if ((unsigned long)dest % 16) { 32 /* badly aligned store, we force store alignment */ 33 /* and will handle load misalignment on val w/ vec_perm */ 34 vector unsigned char perm1; 35 vector signed int v1; 36 for (i = 0 ; (i < dstW) && 37 (((unsigned long)dest + i) % 16) ; i++) { 38 int t = val[i] >> 19; 39 dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t); 40 } 41 perm1 = vec_lvsl(i << 2, val); 42 v1 = vec_ld(i << 2, val); 43 for ( ; i < (dstW - 15); i+=16) { 44 int offset = i << 2; 45 vector signed int v2 = vec_ld(offset + 16, val); 46 vector signed int v3 = vec_ld(offset + 32, val); 47 vector signed int v4 = vec_ld(offset + 48, val); 48 vector signed int v5 = vec_ld(offset + 64, val); 49 vector signed int v12 = vec_perm(v1, v2, perm1); 50 vector signed int v23 = vec_perm(v2, v3, perm1); 51 vector signed int v34 = vec_perm(v3, v4, perm1); 52 vector signed int v45 = vec_perm(v4, v5, perm1); 53 54 vector signed int vA = vec_sra(v12, altivec_vectorShiftInt19); 55 vector signed int vB = vec_sra(v23, altivec_vectorShiftInt19); 56 vector signed int vC = vec_sra(v34, altivec_vectorShiftInt19); 57 vector signed int vD = vec_sra(v45, altivec_vectorShiftInt19); 58 vector unsigned short vs1 = vec_packsu(vA, vB); 59 vector unsigned short vs2 = vec_packsu(vC, vD); 60 vector unsigned char vf = vec_packsu(vs1, vs2); 61 vec_st(vf, i, dest); 62 v1 = v5; 63 } 64 } else { // dest is properly aligned, great 65 for (i = 0; i < (dstW - 15); i+=16) { 66 int offset = i << 2; 67 vector signed int v1 = vec_ld(offset, val); 68 vector signed int v2 = vec_ld(offset + 16, val); 69 vector signed int v3 = vec_ld(offset + 32, val); 70 vector signed int v4 = vec_ld(offset + 48, val); 71 vector signed int v5 = vec_sra(v1, altivec_vectorShiftInt19); 72 vector signed int v6 = vec_sra(v2, altivec_vectorShiftInt19); 73 vector signed int v7 = vec_sra(v3, altivec_vectorShiftInt19); 74 vector signed int v8 = vec_sra(v4, altivec_vectorShiftInt19); 75 vector unsigned short vs1 = vec_packsu(v5, v6); 76 vector unsigned short vs2 = vec_packsu(v7, v8); 77 vector unsigned char vf = vec_packsu(vs1, vs2); 78 vec_st(vf, i, dest); 79 } 80 } 81 for ( ; i < dstW ; i++) { 82 int t = val[i] >> 19; 83 dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t); 84 } 85} 86 87static inline void 88yuv2yuvX_altivec_real(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize, 89 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize, 90 uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW) 91{ 92 const vector signed int vini = {(1 << 18), (1 << 18), (1 << 18), (1 << 18)}; 93 register int i, j; 94 { 95 int __attribute__ ((aligned (16))) val[dstW]; 96 97 for (i = 0; i < (dstW -7); i+=4) { 98 vec_st(vini, i << 2, val); 99 } 100 for (; i < dstW; i++) { 101 val[i] = (1 << 18); 102 } 103 104 for (j = 0; j < lumFilterSize; j++) { 105 vector signed short l1, vLumFilter = vec_ld(j << 1, lumFilter); 106 vector unsigned char perm, perm0 = vec_lvsl(j << 1, lumFilter); 107 vLumFilter = vec_perm(vLumFilter, vLumFilter, perm0); 108 vLumFilter = vec_splat(vLumFilter, 0); // lumFilter[j] is loaded 8 times in vLumFilter 109 110 perm = vec_lvsl(0, lumSrc[j]); 111 l1 = vec_ld(0, lumSrc[j]); 112 113 for (i = 0; i < (dstW - 7); i+=8) { 114 int offset = i << 2; 115 vector signed short l2 = vec_ld((i << 1) + 16, lumSrc[j]); 116 117 vector signed int v1 = vec_ld(offset, val); 118 vector signed int v2 = vec_ld(offset + 16, val); 119 120 vector signed short ls = vec_perm(l1, l2, perm); // lumSrc[j][i] ... lumSrc[j][i+7] 121 122 vector signed int i1 = vec_mule(vLumFilter, ls); 123 vector signed int i2 = vec_mulo(vLumFilter, ls); 124 125 vector signed int vf1 = vec_mergeh(i1, i2); 126 vector signed int vf2 = vec_mergel(i1, i2); // lumSrc[j][i] * lumFilter[j] ... lumSrc[j][i+7] * lumFilter[j] 127 128 vector signed int vo1 = vec_add(v1, vf1); 129 vector signed int vo2 = vec_add(v2, vf2); 130 131 vec_st(vo1, offset, val); 132 vec_st(vo2, offset + 16, val); 133 134 l1 = l2; 135 } 136 for ( ; i < dstW; i++) { 137 val[i] += lumSrc[j][i] * lumFilter[j]; 138 } 139 } 140 altivec_packIntArrayToCharArray(val, dest, dstW); 141 } 142 if (uDest != 0) { 143 int __attribute__ ((aligned (16))) u[chrDstW]; 144 int __attribute__ ((aligned (16))) v[chrDstW]; 145 146 for (i = 0; i < (chrDstW -7); i+=4) { 147 vec_st(vini, i << 2, u); 148 vec_st(vini, i << 2, v); 149 } 150 for (; i < chrDstW; i++) { 151 u[i] = (1 << 18); 152 v[i] = (1 << 18); 153 } 154 155 for (j = 0; j < chrFilterSize; j++) { 156 vector signed short l1, l1_V, vChrFilter = vec_ld(j << 1, chrFilter); 157 vector unsigned char perm, perm0 = vec_lvsl(j << 1, chrFilter); 158 vChrFilter = vec_perm(vChrFilter, vChrFilter, perm0); 159 vChrFilter = vec_splat(vChrFilter, 0); // chrFilter[j] is loaded 8 times in vChrFilter 160 161 perm = vec_lvsl(0, chrSrc[j]); 162 l1 = vec_ld(0, chrSrc[j]); 163 l1_V = vec_ld(2048 << 1, chrSrc[j]); 164 165 for (i = 0; i < (chrDstW - 7); i+=8) { 166 int offset = i << 2; 167 vector signed short l2 = vec_ld((i << 1) + 16, chrSrc[j]); 168 vector signed short l2_V = vec_ld(((i + 2048) << 1) + 16, chrSrc[j]); 169 170 vector signed int v1 = vec_ld(offset, u); 171 vector signed int v2 = vec_ld(offset + 16, u); 172 vector signed int v1_V = vec_ld(offset, v); 173 vector signed int v2_V = vec_ld(offset + 16, v); 174 175 vector signed short ls = vec_perm(l1, l2, perm); // chrSrc[j][i] ... chrSrc[j][i+7] 176 vector signed short ls_V = vec_perm(l1_V, l2_V, perm); // chrSrc[j][i+2048] ... chrSrc[j][i+2055] 177 178 vector signed int i1 = vec_mule(vChrFilter, ls); 179 vector signed int i2 = vec_mulo(vChrFilter, ls); 180 vector signed int i1_V = vec_mule(vChrFilter, ls_V); 181 vector signed int i2_V = vec_mulo(vChrFilter, ls_V); 182 183 vector signed int vf1 = vec_mergeh(i1, i2); 184 vector signed int vf2 = vec_mergel(i1, i2); // chrSrc[j][i] * chrFilter[j] ... chrSrc[j][i+7] * chrFilter[j] 185 vector signed int vf1_V = vec_mergeh(i1_V, i2_V); 186 vector signed int vf2_V = vec_mergel(i1_V, i2_V); // chrSrc[j][i] * chrFilter[j] ... chrSrc[j][i+7] * chrFilter[j] 187 188 vector signed int vo1 = vec_add(v1, vf1); 189 vector signed int vo2 = vec_add(v2, vf2); 190 vector signed int vo1_V = vec_add(v1_V, vf1_V); 191 vector signed int vo2_V = vec_add(v2_V, vf2_V); 192 193 vec_st(vo1, offset, u); 194 vec_st(vo2, offset + 16, u); 195 vec_st(vo1_V, offset, v); 196 vec_st(vo2_V, offset + 16, v); 197 198 l1 = l2; 199 l1_V = l2_V; 200 } 201 for ( ; i < chrDstW; i++) { 202 u[i] += chrSrc[j][i] * chrFilter[j]; 203 v[i] += chrSrc[j][i + 2048] * chrFilter[j]; 204 } 205 } 206 altivec_packIntArrayToCharArray(u, uDest, chrDstW); 207 altivec_packIntArrayToCharArray(v, vDest, chrDstW); 208 } 209} 210 211static inline void hScale_altivec_real(int16_t *dst, int dstW, uint8_t *src, int srcW, int xInc, int16_t *filter, int16_t *filterPos, int filterSize) { 212 register int i; 213 int __attribute__ ((aligned (16))) tempo[4]; 214 215 if (filterSize % 4) { 216 for (i=0; i<dstW; i++) { 217 register int j; 218 register int srcPos = filterPos[i]; 219 register int val = 0; 220 for (j=0; j<filterSize; j++) { 221 val += ((int)src[srcPos + j])*filter[filterSize*i + j]; 222 } 223 dst[i] = FFMIN(val>>7, (1<<15)-1); 224 } 225 } 226 else 227 switch (filterSize) { 228 case 4: 229 { 230 for (i=0; i<dstW; i++) { 231 register int srcPos = filterPos[i]; 232 233 vector unsigned char src_v0 = vec_ld(srcPos, src); 234 vector unsigned char src_v1, src_vF; 235 vector signed short src_v, filter_v; 236 vector signed int val_vEven, val_s; 237 if ((((int)src + srcPos)% 16) > 12) { 238 src_v1 = vec_ld(srcPos + 16, src); 239 } 240 src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src)); 241 242 src_v = // vec_unpackh sign-extends... 243 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); 244 // now put our elements in the even slots 245 src_v = vec_mergeh(src_v, (vector signed short)vzero); 246 247 filter_v = vec_ld(i << 3, filter); 248 // The 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2). 249 250 // The neat trick: We only care for half the elements, 251 // high or low depending on (i<<3)%16 (it's 0 or 8 here), 252 // and we're going to use vec_mule, so we choose 253 // carefully how to "unpack" the elements into the even slots. 254 if ((i << 3) % 16) 255 filter_v = vec_mergel(filter_v, (vector signed short)vzero); 256 else 257 filter_v = vec_mergeh(filter_v, (vector signed short)vzero); 258 259 val_vEven = vec_mule(src_v, filter_v); 260 val_s = vec_sums(val_vEven, vzero); 261 vec_st(val_s, 0, tempo); 262 dst[i] = FFMIN(tempo[3]>>7, (1<<15)-1); 263 } 264 } 265 break; 266 267 case 8: 268 { 269 for (i=0; i<dstW; i++) { 270 register int srcPos = filterPos[i]; 271 272 vector unsigned char src_v0 = vec_ld(srcPos, src); 273 vector unsigned char src_v1, src_vF; 274 vector signed short src_v, filter_v; 275 vector signed int val_v, val_s; 276 if ((((int)src + srcPos)% 16) > 8) { 277 src_v1 = vec_ld(srcPos + 16, src); 278 } 279 src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src)); 280 281 src_v = // vec_unpackh sign-extends... 282 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); 283 filter_v = vec_ld(i << 4, filter); 284 // the 4 above is 3 (filterSize == 8) + 1 (sizeof(short) == 2) 285 286 val_v = vec_msums(src_v, filter_v, (vector signed int)vzero); 287 val_s = vec_sums(val_v, vzero); 288 vec_st(val_s, 0, tempo); 289 dst[i] = FFMIN(tempo[3]>>7, (1<<15)-1); 290 } 291 } 292 break; 293 294 case 16: 295 { 296 for (i=0; i<dstW; i++) { 297 register int srcPos = filterPos[i]; 298 299 vector unsigned char src_v0 = vec_ld(srcPos, src); 300 vector unsigned char src_v1 = vec_ld(srcPos + 16, src); 301 vector unsigned char src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src)); 302 303 vector signed short src_vA = // vec_unpackh sign-extends... 304 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); 305 vector signed short src_vB = // vec_unpackh sign-extends... 306 (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF)); 307 308 vector signed short filter_v0 = vec_ld(i << 5, filter); 309 vector signed short filter_v1 = vec_ld((i << 5) + 16, filter); 310 // the 5 above are 4 (filterSize == 16) + 1 (sizeof(short) == 2) 311 312 vector signed int val_acc = vec_msums(src_vA, filter_v0, (vector signed int)vzero); 313 vector signed int val_v = vec_msums(src_vB, filter_v1, val_acc); 314 315 vector signed int val_s = vec_sums(val_v, vzero); 316 317 vec_st(val_s, 0, tempo); 318 dst[i] = FFMIN(tempo[3]>>7, (1<<15)-1); 319 } 320 } 321 break; 322 323 default: 324 { 325 for (i=0; i<dstW; i++) { 326 register int j; 327 register int srcPos = filterPos[i]; 328 329 vector signed int val_s, val_v = (vector signed int)vzero; 330 vector signed short filter_v0R = vec_ld(i * 2 * filterSize, filter); 331 vector unsigned char permF = vec_lvsl((i * 2 * filterSize), filter); 332 333 vector unsigned char src_v0 = vec_ld(srcPos, src); 334 vector unsigned char permS = vec_lvsl(srcPos, src); 335 336 for (j = 0 ; j < filterSize - 15; j += 16) { 337 vector unsigned char src_v1 = vec_ld(srcPos + j + 16, src); 338 vector unsigned char src_vF = vec_perm(src_v0, src_v1, permS); 339 340 vector signed short src_vA = // vec_unpackh sign-extends... 341 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); 342 vector signed short src_vB = // vec_unpackh sign-extends... 343 (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF)); 344 345 vector signed short filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter); 346 vector signed short filter_v2R = vec_ld((i * 2 * filterSize) + (j * 2) + 32, filter); 347 vector signed short filter_v0 = vec_perm(filter_v0R, filter_v1R, permF); 348 vector signed short filter_v1 = vec_perm(filter_v1R, filter_v2R, permF); 349 350 vector signed int val_acc = vec_msums(src_vA, filter_v0, val_v); 351 val_v = vec_msums(src_vB, filter_v1, val_acc); 352 353 filter_v0R = filter_v2R; 354 src_v0 = src_v1; 355 } 356 357 if (j < filterSize-7) { 358 // loading src_v0 is useless, it's already done above 359 //vector unsigned char src_v0 = vec_ld(srcPos + j, src); 360 vector unsigned char src_v1, src_vF; 361 vector signed short src_v, filter_v1R, filter_v; 362 if ((((int)src + srcPos)% 16) > 8) { 363 src_v1 = vec_ld(srcPos + j + 16, src); 364 } 365 src_vF = vec_perm(src_v0, src_v1, permS); 366 367 src_v = // vec_unpackh sign-extends... 368 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF)); 369 // loading filter_v0R is useless, it's already done above 370 //vector signed short filter_v0R = vec_ld((i * 2 * filterSize) + j, filter); 371 filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter); 372 filter_v = vec_perm(filter_v0R, filter_v1R, permF); 373 374 val_v = vec_msums(src_v, filter_v, val_v); 375 } 376 377 val_s = vec_sums(val_v, vzero); 378 379 vec_st(val_s, 0, tempo); 380 dst[i] = FFMIN(tempo[3]>>7, (1<<15)-1); 381 } 382 383 } 384 } 385} 386 387static inline int yv12toyuy2_unscaled_altivec(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, 388 int srcSliceH, uint8_t* dstParam[], int dstStride_a[]) { 389 uint8_t *dst=dstParam[0] + dstStride_a[0]*srcSliceY; 390 // yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); 391 uint8_t *ysrc = src[0]; 392 uint8_t *usrc = src[1]; 393 uint8_t *vsrc = src[2]; 394 const int width = c->srcW; 395 const int height = srcSliceH; 396 const int lumStride = srcStride[0]; 397 const int chromStride = srcStride[1]; 398 const int dstStride = dstStride_a[0]; 399 const vector unsigned char yperm = vec_lvsl(0, ysrc); 400 const int vertLumPerChroma = 2; 401 register unsigned int y; 402 403 if (width&15) { 404 yv12toyuy2(ysrc, usrc, vsrc, dst, c->srcW, srcSliceH, lumStride, chromStride, dstStride); 405 return srcSliceH; 406 } 407 408 /* This code assumes: 409 410 1) dst is 16 bytes-aligned 411 2) dstStride is a multiple of 16 412 3) width is a multiple of 16 413 4) lum & chrom stride are multiples of 8 414 */ 415 416 for (y=0; y<height; y++) { 417 int i; 418 for (i = 0; i < width - 31; i+= 32) { 419 const unsigned int j = i >> 1; 420 vector unsigned char v_yA = vec_ld(i, ysrc); 421 vector unsigned char v_yB = vec_ld(i + 16, ysrc); 422 vector unsigned char v_yC = vec_ld(i + 32, ysrc); 423 vector unsigned char v_y1 = vec_perm(v_yA, v_yB, yperm); 424 vector unsigned char v_y2 = vec_perm(v_yB, v_yC, yperm); 425 vector unsigned char v_uA = vec_ld(j, usrc); 426 vector unsigned char v_uB = vec_ld(j + 16, usrc); 427 vector unsigned char v_u = vec_perm(v_uA, v_uB, vec_lvsl(j, usrc)); 428 vector unsigned char v_vA = vec_ld(j, vsrc); 429 vector unsigned char v_vB = vec_ld(j + 16, vsrc); 430 vector unsigned char v_v = vec_perm(v_vA, v_vB, vec_lvsl(j, vsrc)); 431 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v); 432 vector unsigned char v_uv_b = vec_mergel(v_u, v_v); 433 vector unsigned char v_yuy2_0 = vec_mergeh(v_y1, v_uv_a); 434 vector unsigned char v_yuy2_1 = vec_mergel(v_y1, v_uv_a); 435 vector unsigned char v_yuy2_2 = vec_mergeh(v_y2, v_uv_b); 436 vector unsigned char v_yuy2_3 = vec_mergel(v_y2, v_uv_b); 437 vec_st(v_yuy2_0, (i << 1), dst); 438 vec_st(v_yuy2_1, (i << 1) + 16, dst); 439 vec_st(v_yuy2_2, (i << 1) + 32, dst); 440 vec_st(v_yuy2_3, (i << 1) + 48, dst); 441 } 442 if (i < width) { 443 const unsigned int j = i >> 1; 444 vector unsigned char v_y1 = vec_ld(i, ysrc); 445 vector unsigned char v_u = vec_ld(j, usrc); 446 vector unsigned char v_v = vec_ld(j, vsrc); 447 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v); 448 vector unsigned char v_yuy2_0 = vec_mergeh(v_y1, v_uv_a); 449 vector unsigned char v_yuy2_1 = vec_mergel(v_y1, v_uv_a); 450 vec_st(v_yuy2_0, (i << 1), dst); 451 vec_st(v_yuy2_1, (i << 1) + 16, dst); 452 } 453 if ((y&(vertLumPerChroma-1)) == vertLumPerChroma-1) { 454 usrc += chromStride; 455 vsrc += chromStride; 456 } 457 ysrc += lumStride; 458 dst += dstStride; 459 } 460 461 return srcSliceH; 462} 463 464static inline int yv12touyvy_unscaled_altivec(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, 465 int srcSliceH, uint8_t* dstParam[], int dstStride_a[]) { 466 uint8_t *dst=dstParam[0] + dstStride_a[0]*srcSliceY; 467 // yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); 468 uint8_t *ysrc = src[0]; 469 uint8_t *usrc = src[1]; 470 uint8_t *vsrc = src[2]; 471 const int width = c->srcW; 472 const int height = srcSliceH; 473 const int lumStride = srcStride[0]; 474 const int chromStride = srcStride[1]; 475 const int dstStride = dstStride_a[0]; 476 const int vertLumPerChroma = 2; 477 const vector unsigned char yperm = vec_lvsl(0, ysrc); 478 register unsigned int y; 479 480 if (width&15) { 481 yv12touyvy(ysrc, usrc, vsrc, dst, c->srcW, srcSliceH, lumStride, chromStride, dstStride); 482 return srcSliceH; 483 } 484 485 /* This code assumes: 486 487 1) dst is 16 bytes-aligned 488 2) dstStride is a multiple of 16 489 3) width is a multiple of 16 490 4) lum & chrom stride are multiples of 8 491 */ 492 493 for (y=0; y<height; y++) { 494 int i; 495 for (i = 0; i < width - 31; i+= 32) { 496 const unsigned int j = i >> 1; 497 vector unsigned char v_yA = vec_ld(i, ysrc); 498 vector unsigned char v_yB = vec_ld(i + 16, ysrc); 499 vector unsigned char v_yC = vec_ld(i + 32, ysrc); 500 vector unsigned char v_y1 = vec_perm(v_yA, v_yB, yperm); 501 vector unsigned char v_y2 = vec_perm(v_yB, v_yC, yperm); 502 vector unsigned char v_uA = vec_ld(j, usrc); 503 vector unsigned char v_uB = vec_ld(j + 16, usrc); 504 vector unsigned char v_u = vec_perm(v_uA, v_uB, vec_lvsl(j, usrc)); 505 vector unsigned char v_vA = vec_ld(j, vsrc); 506 vector unsigned char v_vB = vec_ld(j + 16, vsrc); 507 vector unsigned char v_v = vec_perm(v_vA, v_vB, vec_lvsl(j, vsrc)); 508 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v); 509 vector unsigned char v_uv_b = vec_mergel(v_u, v_v); 510 vector unsigned char v_uyvy_0 = vec_mergeh(v_uv_a, v_y1); 511 vector unsigned char v_uyvy_1 = vec_mergel(v_uv_a, v_y1); 512 vector unsigned char v_uyvy_2 = vec_mergeh(v_uv_b, v_y2); 513 vector unsigned char v_uyvy_3 = vec_mergel(v_uv_b, v_y2); 514 vec_st(v_uyvy_0, (i << 1), dst); 515 vec_st(v_uyvy_1, (i << 1) + 16, dst); 516 vec_st(v_uyvy_2, (i << 1) + 32, dst); 517 vec_st(v_uyvy_3, (i << 1) + 48, dst); 518 } 519 if (i < width) { 520 const unsigned int j = i >> 1; 521 vector unsigned char v_y1 = vec_ld(i, ysrc); 522 vector unsigned char v_u = vec_ld(j, usrc); 523 vector unsigned char v_v = vec_ld(j, vsrc); 524 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v); 525 vector unsigned char v_uyvy_0 = vec_mergeh(v_uv_a, v_y1); 526 vector unsigned char v_uyvy_1 = vec_mergel(v_uv_a, v_y1); 527 vec_st(v_uyvy_0, (i << 1), dst); 528 vec_st(v_uyvy_1, (i << 1) + 16, dst); 529 } 530 if ((y&(vertLumPerChroma-1)) == vertLumPerChroma-1) { 531 usrc += chromStride; 532 vsrc += chromStride; 533 } 534 ysrc += lumStride; 535 dst += dstStride; 536 } 537 return srcSliceH; 538} 539