e9b51a808eee9e91f8af00fc355756c42a049578
[libav.git] / libswscale / swscale_altivec_template.c
1 /*
2 * AltiVec-enhanced yuv2yuvX
3 *
4 * Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org>
5 * based on the equivalent C code in "postproc/swscale.c"
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (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
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #ifdef CONFIG_DARWIN
25 #define AVV(x...) (x)
26 #else
27 #define AVV(x...) {x}
28 #endif
29
30 #define vzero vec_splat_s32(0)
31
32 static inline void
33 altivec_packIntArrayToCharArray(int *val, uint8_t* dest, int dstW) {
34 register int i;
35 vector unsigned int altivec_vectorShiftInt19 =
36 vec_add(vec_splat_u32(10),vec_splat_u32(9));
37 if ((unsigned long)dest % 16) {
38 /* badly aligned store, we force store alignement */
39 /* and will handle load misalignement on val w/ vec_perm */
40 vector unsigned char perm1;
41 vector signed int v1;
42 for (i = 0 ; (i < dstW) &&
43 (((unsigned long)dest + i) % 16) ; i++) {
44 int t = val[i] >> 19;
45 dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t);
46 }
47 perm1 = vec_lvsl(i << 2, val);
48 v1 = vec_ld(i << 2, val);
49 for ( ; i < (dstW - 15); i+=16) {
50 int offset = i << 2;
51 vector signed int v2 = vec_ld(offset + 16, val);
52 vector signed int v3 = vec_ld(offset + 32, val);
53 vector signed int v4 = vec_ld(offset + 48, val);
54 vector signed int v5 = vec_ld(offset + 64, val);
55 vector signed int v12 = vec_perm(v1,v2,perm1);
56 vector signed int v23 = vec_perm(v2,v3,perm1);
57 vector signed int v34 = vec_perm(v3,v4,perm1);
58 vector signed int v45 = vec_perm(v4,v5,perm1);
59
60 vector signed int vA = vec_sra(v12, altivec_vectorShiftInt19);
61 vector signed int vB = vec_sra(v23, altivec_vectorShiftInt19);
62 vector signed int vC = vec_sra(v34, altivec_vectorShiftInt19);
63 vector signed int vD = vec_sra(v45, altivec_vectorShiftInt19);
64 vector unsigned short vs1 = vec_packsu(vA, vB);
65 vector unsigned short vs2 = vec_packsu(vC, vD);
66 vector unsigned char vf = vec_packsu(vs1, vs2);
67 vec_st(vf, i, dest);
68 v1 = v5;
69 }
70 } else { // dest is properly aligned, great
71 for (i = 0; i < (dstW - 15); i+=16) {
72 int offset = i << 2;
73 vector signed int v1 = vec_ld(offset, val);
74 vector signed int v2 = vec_ld(offset + 16, val);
75 vector signed int v3 = vec_ld(offset + 32, val);
76 vector signed int v4 = vec_ld(offset + 48, val);
77 vector signed int v5 = vec_sra(v1, altivec_vectorShiftInt19);
78 vector signed int v6 = vec_sra(v2, altivec_vectorShiftInt19);
79 vector signed int v7 = vec_sra(v3, altivec_vectorShiftInt19);
80 vector signed int v8 = vec_sra(v4, altivec_vectorShiftInt19);
81 vector unsigned short vs1 = vec_packsu(v5, v6);
82 vector unsigned short vs2 = vec_packsu(v7, v8);
83 vector unsigned char vf = vec_packsu(vs1, vs2);
84 vec_st(vf, i, dest);
85 }
86 }
87 for ( ; i < dstW ; i++) {
88 int t = val[i] >> 19;
89 dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t);
90 }
91 }
92
93 static inline void
94 yuv2yuvX_altivec_real(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
95 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
96 uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
97 {
98 const vector signed int vini = {(1 << 18), (1 << 18), (1 << 18), (1 << 18)};
99 register int i, j;
100 {
101 int __attribute__ ((aligned (16))) val[dstW];
102
103 for (i = 0; i < (dstW -7); i+=4) {
104 vec_st(vini, i << 2, val);
105 }
106 for (; i < dstW; i++) {
107 val[i] = (1 << 18);
108 }
109
110 for (j = 0; j < lumFilterSize; j++) {
111 vector signed short l1, vLumFilter = vec_ld(j << 1, lumFilter);
112 vector unsigned char perm, perm0 = vec_lvsl(j << 1, lumFilter);
113 vLumFilter = vec_perm(vLumFilter, vLumFilter, perm0);
114 vLumFilter = vec_splat(vLumFilter, 0); // lumFilter[j] is loaded 8 times in vLumFilter
115
116 perm = vec_lvsl(0, lumSrc[j]);
117 l1 = vec_ld(0, lumSrc[j]);
118
119 for (i = 0; i < (dstW - 7); i+=8) {
120 int offset = i << 2;
121 vector signed short l2 = vec_ld((i << 1) + 16, lumSrc[j]);
122
123 vector signed int v1 = vec_ld(offset, val);
124 vector signed int v2 = vec_ld(offset + 16, val);
125
126 vector signed short ls = vec_perm(l1, l2, perm); // lumSrc[j][i] ... lumSrc[j][i+7]
127
128 vector signed int i1 = vec_mule(vLumFilter, ls);
129 vector signed int i2 = vec_mulo(vLumFilter, ls);
130
131 vector signed int vf1 = vec_mergeh(i1, i2);
132 vector signed int vf2 = vec_mergel(i1, i2); // lumSrc[j][i] * lumFilter[j] ... lumSrc[j][i+7] * lumFilter[j]
133
134 vector signed int vo1 = vec_add(v1, vf1);
135 vector signed int vo2 = vec_add(v2, vf2);
136
137 vec_st(vo1, offset, val);
138 vec_st(vo2, offset + 16, val);
139
140 l1 = l2;
141 }
142 for ( ; i < dstW; i++) {
143 val[i] += lumSrc[j][i] * lumFilter[j];
144 }
145 }
146 altivec_packIntArrayToCharArray(val,dest,dstW);
147 }
148 if (uDest != 0) {
149 int __attribute__ ((aligned (16))) u[chrDstW];
150 int __attribute__ ((aligned (16))) v[chrDstW];
151
152 for (i = 0; i < (chrDstW -7); i+=4) {
153 vec_st(vini, i << 2, u);
154 vec_st(vini, i << 2, v);
155 }
156 for (; i < chrDstW; i++) {
157 u[i] = (1 << 18);
158 v[i] = (1 << 18);
159 }
160
161 for (j = 0; j < chrFilterSize; j++) {
162 vector signed short l1, l1_V, vChrFilter = vec_ld(j << 1, chrFilter);
163 vector unsigned char perm, perm0 = vec_lvsl(j << 1, chrFilter);
164 vChrFilter = vec_perm(vChrFilter, vChrFilter, perm0);
165 vChrFilter = vec_splat(vChrFilter, 0); // chrFilter[j] is loaded 8 times in vChrFilter
166
167 perm = vec_lvsl(0, chrSrc[j]);
168 l1 = vec_ld(0, chrSrc[j]);
169 l1_V = vec_ld(2048 << 1, chrSrc[j]);
170
171 for (i = 0; i < (chrDstW - 7); i+=8) {
172 int offset = i << 2;
173 vector signed short l2 = vec_ld((i << 1) + 16, chrSrc[j]);
174 vector signed short l2_V = vec_ld(((i + 2048) << 1) + 16, chrSrc[j]);
175
176 vector signed int v1 = vec_ld(offset, u);
177 vector signed int v2 = vec_ld(offset + 16, u);
178 vector signed int v1_V = vec_ld(offset, v);
179 vector signed int v2_V = vec_ld(offset + 16, v);
180
181 vector signed short ls = vec_perm(l1, l2, perm); // chrSrc[j][i] ... chrSrc[j][i+7]
182 vector signed short ls_V = vec_perm(l1_V, l2_V, perm); // chrSrc[j][i+2048] ... chrSrc[j][i+2055]
183
184 vector signed int i1 = vec_mule(vChrFilter, ls);
185 vector signed int i2 = vec_mulo(vChrFilter, ls);
186 vector signed int i1_V = vec_mule(vChrFilter, ls_V);
187 vector signed int i2_V = vec_mulo(vChrFilter, ls_V);
188
189 vector signed int vf1 = vec_mergeh(i1, i2);
190 vector signed int vf2 = vec_mergel(i1, i2); // chrSrc[j][i] * chrFilter[j] ... chrSrc[j][i+7] * chrFilter[j]
191 vector signed int vf1_V = vec_mergeh(i1_V, i2_V);
192 vector signed int vf2_V = vec_mergel(i1_V, i2_V); // chrSrc[j][i] * chrFilter[j] ... chrSrc[j][i+7] * chrFilter[j]
193
194 vector signed int vo1 = vec_add(v1, vf1);
195 vector signed int vo2 = vec_add(v2, vf2);
196 vector signed int vo1_V = vec_add(v1_V, vf1_V);
197 vector signed int vo2_V = vec_add(v2_V, vf2_V);
198
199 vec_st(vo1, offset, u);
200 vec_st(vo2, offset + 16, u);
201 vec_st(vo1_V, offset, v);
202 vec_st(vo2_V, offset + 16, v);
203
204 l1 = l2;
205 l1_V = l2_V;
206 }
207 for ( ; i < chrDstW; i++) {
208 u[i] += chrSrc[j][i] * chrFilter[j];
209 v[i] += chrSrc[j][i + 2048] * chrFilter[j];
210 }
211 }
212 altivec_packIntArrayToCharArray(u,uDest,chrDstW);
213 altivec_packIntArrayToCharArray(v,vDest,chrDstW);
214 }
215 }
216
217 static 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) {
218 register int i;
219 int __attribute__ ((aligned (16))) tempo[4];
220
221 if (filterSize % 4) {
222 for (i=0; i<dstW; i++) {
223 register int j;
224 register int srcPos = filterPos[i];
225 register int val = 0;
226 for (j=0; j<filterSize; j++) {
227 val += ((int)src[srcPos + j])*filter[filterSize*i + j];
228 }
229 dst[i] = av_clip(val>>7, 0, (1<<15)-1);
230 }
231 }
232 else
233 switch (filterSize) {
234 case 4:
235 {
236 for (i=0; i<dstW; i++) {
237 register int srcPos = filterPos[i];
238
239 vector unsigned char src_v0 = vec_ld(srcPos, src);
240 vector unsigned char src_v1, src_vF;
241 vector signed short src_v, filter_v;
242 vector signed int val_vEven, val_s;
243 if ((((int)src + srcPos)% 16) > 12) {
244 src_v1 = vec_ld(srcPos + 16, src);
245 }
246 src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
247
248 src_v = // vec_unpackh sign-extends...
249 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
250 // now put our elements in the even slots
251 src_v = vec_mergeh(src_v, (vector signed short)vzero);
252
253 filter_v = vec_ld(i << 3, filter);
254 // the 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2)
255
256 // the neat trick : we only care for half the elements,
257 // high or low depending on (i<<3)%16 (it's 0 or 8 here),
258 // and we're going to use vec_mule, so we chose
259 // carefully how to "unpack" the elements into the even slots
260 if ((i << 3) % 16)
261 filter_v = vec_mergel(filter_v,(vector signed short)vzero);
262 else
263 filter_v = vec_mergeh(filter_v,(vector signed short)vzero);
264
265 val_vEven = vec_mule(src_v, filter_v);
266 val_s = vec_sums(val_vEven, vzero);
267 vec_st(val_s, 0, tempo);
268 dst[i] = av_clip(tempo[3]>>7, 0, (1<<15)-1);
269 }
270 }
271 break;
272
273 case 8:
274 {
275 for (i=0; i<dstW; i++) {
276 register int srcPos = filterPos[i];
277
278 vector unsigned char src_v0 = vec_ld(srcPos, src);
279 vector unsigned char src_v1, src_vF;
280 vector signed short src_v, filter_v;
281 vector signed int val_v, val_s;
282 if ((((int)src + srcPos)% 16) > 8) {
283 src_v1 = vec_ld(srcPos + 16, src);
284 }
285 src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
286
287 src_v = // vec_unpackh sign-extends...
288 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
289 filter_v = vec_ld(i << 4, filter);
290 // the 4 above is 3 (filterSize == 8) + 1 (sizeof(short) == 2)
291
292 val_v = vec_msums(src_v, filter_v, (vector signed int)vzero);
293 val_s = vec_sums(val_v, vzero);
294 vec_st(val_s, 0, tempo);
295 dst[i] = av_clip(tempo[3]>>7, 0, (1<<15)-1);
296 }
297 }
298 break;
299
300 case 16:
301 {
302 for (i=0; i<dstW; i++) {
303 register int srcPos = filterPos[i];
304
305 vector unsigned char src_v0 = vec_ld(srcPos, src);
306 vector unsigned char src_v1 = vec_ld(srcPos + 16, src);
307 vector unsigned char src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
308
309 vector signed short src_vA = // vec_unpackh sign-extends...
310 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
311 vector signed short src_vB = // vec_unpackh sign-extends...
312 (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF));
313
314 vector signed short filter_v0 = vec_ld(i << 5, filter);
315 vector signed short filter_v1 = vec_ld((i << 5) + 16, filter);
316 // the 5 above are 4 (filterSize == 16) + 1 (sizeof(short) == 2)
317
318 vector signed int val_acc = vec_msums(src_vA, filter_v0, (vector signed int)vzero);
319 vector signed int val_v = vec_msums(src_vB, filter_v1, val_acc);
320
321 vector signed int val_s = vec_sums(val_v, vzero);
322
323 vec_st(val_s, 0, tempo);
324 dst[i] = av_clip(tempo[3]>>7, 0, (1<<15)-1);
325 }
326 }
327 break;
328
329 default:
330 {
331 for (i=0; i<dstW; i++) {
332 register int j;
333 register int srcPos = filterPos[i];
334
335 vector signed int val_s, val_v = (vector signed int)vzero;
336 vector signed short filter_v0R = vec_ld(i * 2 * filterSize, filter);
337 vector unsigned char permF = vec_lvsl((i * 2 * filterSize), filter);
338
339 vector unsigned char src_v0 = vec_ld(srcPos, src);
340 vector unsigned char permS = vec_lvsl(srcPos, src);
341
342 for (j = 0 ; j < filterSize - 15; j += 16) {
343 vector unsigned char src_v1 = vec_ld(srcPos + j + 16, src);
344 vector unsigned char src_vF = vec_perm(src_v0, src_v1, permS);
345
346 vector signed short src_vA = // vec_unpackh sign-extends...
347 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
348 vector signed short src_vB = // vec_unpackh sign-extends...
349 (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF));
350
351 vector signed short filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter);
352 vector signed short filter_v2R = vec_ld((i * 2 * filterSize) + (j * 2) + 32, filter);
353 vector signed short filter_v0 = vec_perm(filter_v0R, filter_v1R, permF);
354 vector signed short filter_v1 = vec_perm(filter_v1R, filter_v2R, permF);
355
356 vector signed int val_acc = vec_msums(src_vA, filter_v0, val_v);
357 val_v = vec_msums(src_vB, filter_v1, val_acc);
358
359 filter_v0R = filter_v2R;
360 src_v0 = src_v1;
361 }
362
363 if (j < (filterSize-7)) {
364 // loading src_v0 is useless, it's already done above
365 //vector unsigned char src_v0 = vec_ld(srcPos + j, src);
366 vector unsigned char src_v1, src_vF;
367 vector signed short src_v, filter_v1R, filter_v;
368 if ((((int)src + srcPos)% 16) > 8) {
369 src_v1 = vec_ld(srcPos + j + 16, src);
370 }
371 src_vF = vec_perm(src_v0, src_v1, permS);
372
373 src_v = // vec_unpackh sign-extends...
374 (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
375 // loading filter_v0R is useless, it's already done above
376 //vector signed short filter_v0R = vec_ld((i * 2 * filterSize) + j, filter);
377 filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter);
378 filter_v = vec_perm(filter_v0R, filter_v1R, permF);
379
380 val_v = vec_msums(src_v, filter_v, val_v);
381 }
382
383 val_s = vec_sums(val_v, vzero);
384
385 vec_st(val_s, 0, tempo);
386 dst[i] = av_clip(tempo[3]>>7, 0, (1<<15)-1);
387 }
388
389 }
390 }
391 }
392
393 static inline int yv12toyuy2_unscaled_altivec(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
394 int srcSliceH, uint8_t* dstParam[], int dstStride_a[]) {
395 uint8_t *dst=dstParam[0] + dstStride_a[0]*srcSliceY;
396 // yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
397 uint8_t *ysrc = src[0];
398 uint8_t *usrc = src[1];
399 uint8_t *vsrc = src[2];
400 const int width = c->srcW;
401 const int height = srcSliceH;
402 const int lumStride = srcStride[0];
403 const int chromStride = srcStride[1];
404 const int dstStride = dstStride_a[0];
405 const vector unsigned char yperm = vec_lvsl(0, ysrc);
406 const int vertLumPerChroma = 2;
407 register unsigned int y;
408
409 if (width&15) {
410 yv12toyuy2( ysrc, usrc, vsrc, dst,c->srcW,srcSliceH, lumStride, chromStride, dstStride);
411 return srcSliceH;
412 }
413
414 /* this code assume:
415
416 1) dst is 16 bytes-aligned
417 2) dstStride is a multiple of 16
418 3) width is a multiple of 16
419 4) lum&chrom stride are multiple of 8
420 */
421
422 for (y=0; y<height; y++) {
423 int i;
424 for (i = 0; i < width - 31; i+= 32) {
425 const unsigned int j = i >> 1;
426 vector unsigned char v_yA = vec_ld(i, ysrc);
427 vector unsigned char v_yB = vec_ld(i + 16, ysrc);
428 vector unsigned char v_yC = vec_ld(i + 32, ysrc);
429 vector unsigned char v_y1 = vec_perm(v_yA, v_yB, yperm);
430 vector unsigned char v_y2 = vec_perm(v_yB, v_yC, yperm);
431 vector unsigned char v_uA = vec_ld(j, usrc);
432 vector unsigned char v_uB = vec_ld(j + 16, usrc);
433 vector unsigned char v_u = vec_perm(v_uA, v_uB, vec_lvsl(j, usrc));
434 vector unsigned char v_vA = vec_ld(j, vsrc);
435 vector unsigned char v_vB = vec_ld(j + 16, vsrc);
436 vector unsigned char v_v = vec_perm(v_vA, v_vB, vec_lvsl(j, vsrc));
437 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
438 vector unsigned char v_uv_b = vec_mergel(v_u, v_v);
439 vector unsigned char v_yuy2_0 = vec_mergeh(v_y1, v_uv_a);
440 vector unsigned char v_yuy2_1 = vec_mergel(v_y1, v_uv_a);
441 vector unsigned char v_yuy2_2 = vec_mergeh(v_y2, v_uv_b);
442 vector unsigned char v_yuy2_3 = vec_mergel(v_y2, v_uv_b);
443 vec_st(v_yuy2_0, (i << 1), dst);
444 vec_st(v_yuy2_1, (i << 1) + 16, dst);
445 vec_st(v_yuy2_2, (i << 1) + 32, dst);
446 vec_st(v_yuy2_3, (i << 1) + 48, dst);
447 }
448 if (i < width) {
449 const unsigned int j = i >> 1;
450 vector unsigned char v_y1 = vec_ld(i, ysrc);
451 vector unsigned char v_u = vec_ld(j, usrc);
452 vector unsigned char v_v = vec_ld(j, vsrc);
453 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
454 vector unsigned char v_yuy2_0 = vec_mergeh(v_y1, v_uv_a);
455 vector unsigned char v_yuy2_1 = vec_mergel(v_y1, v_uv_a);
456 vec_st(v_yuy2_0, (i << 1), dst);
457 vec_st(v_yuy2_1, (i << 1) + 16, dst);
458 }
459 if ( (y&(vertLumPerChroma-1))==(vertLumPerChroma-1) ) {
460 usrc += chromStride;
461 vsrc += chromStride;
462 }
463 ysrc += lumStride;
464 dst += dstStride;
465 }
466
467 return srcSliceH;
468 }
469
470 static inline int yv12touyvy_unscaled_altivec(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
471 int srcSliceH, uint8_t* dstParam[], int dstStride_a[]) {
472 uint8_t *dst=dstParam[0] + dstStride_a[0]*srcSliceY;
473 // yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
474 uint8_t *ysrc = src[0];
475 uint8_t *usrc = src[1];
476 uint8_t *vsrc = src[2];
477 const int width = c->srcW;
478 const int height = srcSliceH;
479 const int lumStride = srcStride[0];
480 const int chromStride = srcStride[1];
481 const int dstStride = dstStride_a[0];
482 const int vertLumPerChroma = 2;
483 const vector unsigned char yperm = vec_lvsl(0, ysrc);
484 register unsigned int y;
485
486 if (width&15) {
487 yv12touyvy( ysrc, usrc, vsrc, dst,c->srcW,srcSliceH, lumStride, chromStride, dstStride);
488 return srcSliceH;
489 }
490
491 /* this code assume:
492
493 1) dst is 16 bytes-aligned
494 2) dstStride is a multiple of 16
495 3) width is a multiple of 16
496 4) lum&chrom stride are multiple of 8
497 */
498
499 for (y=0; y<height; y++) {
500 int i;
501 for (i = 0; i < width - 31; i+= 32) {
502 const unsigned int j = i >> 1;
503 vector unsigned char v_yA = vec_ld(i, ysrc);
504 vector unsigned char v_yB = vec_ld(i + 16, ysrc);
505 vector unsigned char v_yC = vec_ld(i + 32, ysrc);
506 vector unsigned char v_y1 = vec_perm(v_yA, v_yB, yperm);
507 vector unsigned char v_y2 = vec_perm(v_yB, v_yC, yperm);
508 vector unsigned char v_uA = vec_ld(j, usrc);
509 vector unsigned char v_uB = vec_ld(j + 16, usrc);
510 vector unsigned char v_u = vec_perm(v_uA, v_uB, vec_lvsl(j, usrc));
511 vector unsigned char v_vA = vec_ld(j, vsrc);
512 vector unsigned char v_vB = vec_ld(j + 16, vsrc);
513 vector unsigned char v_v = vec_perm(v_vA, v_vB, vec_lvsl(j, vsrc));
514 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
515 vector unsigned char v_uv_b = vec_mergel(v_u, v_v);
516 vector unsigned char v_uyvy_0 = vec_mergeh(v_uv_a, v_y1);
517 vector unsigned char v_uyvy_1 = vec_mergel(v_uv_a, v_y1);
518 vector unsigned char v_uyvy_2 = vec_mergeh(v_uv_b, v_y2);
519 vector unsigned char v_uyvy_3 = vec_mergel(v_uv_b, v_y2);
520 vec_st(v_uyvy_0, (i << 1), dst);
521 vec_st(v_uyvy_1, (i << 1) + 16, dst);
522 vec_st(v_uyvy_2, (i << 1) + 32, dst);
523 vec_st(v_uyvy_3, (i << 1) + 48, dst);
524 }
525 if (i < width) {
526 const unsigned int j = i >> 1;
527 vector unsigned char v_y1 = vec_ld(i, ysrc);
528 vector unsigned char v_u = vec_ld(j, usrc);
529 vector unsigned char v_v = vec_ld(j, vsrc);
530 vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
531 vector unsigned char v_uyvy_0 = vec_mergeh(v_uv_a, v_y1);
532 vector unsigned char v_uyvy_1 = vec_mergel(v_uv_a, v_y1);
533 vec_st(v_uyvy_0, (i << 1), dst);
534 vec_st(v_uyvy_1, (i << 1) + 16, dst);
535 }
536 if ( (y&(vertLumPerChroma-1))==(vertLumPerChroma-1) ) {
537 usrc += chromStride;
538 vsrc += chromStride;
539 }
540 ysrc += lumStride;
541 dst += dstStride;
542 }
543 return srcSliceH;
544 }