2 * Copyright (c) 2002 Brian Foley
3 * Copyright (c) 2002 Dieter Shirley
4 * Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "../dsputil.h"
23 #include "gcc_fixes.h"
25 #include "dsputil_altivec.h"
28 #include <sys/sysctl.h>
29 #else /* CONFIG_DARWIN */
31 #include <exec/exec.h>
32 #include <interfaces/exec.h>
33 #include <proto/exec.h>
34 #else /* __AMIGAOS4__ */
38 static sigjmp_buf jmpbuf;
39 static volatile sig_atomic_t canjump = 0;
41 static void sigill_handler (int sig)
44 signal (sig, SIG_DFL);
49 siglongjmp (jmpbuf, 1);
51 #endif /* CONFIG_DARWIN */
52 #endif /* __AMIGAOS4__ */
54 int sad16_x2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
57 int s __attribute__((aligned(16)));
58 const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0);
59 vector unsigned char *tv;
60 vector unsigned char pix1v, pix2v, pix2iv, avgv, t5;
61 vector unsigned int sad;
62 vector signed int sumdiffs;
65 sad = (vector unsigned int)vec_splat_u32(0);
68 Read unaligned pixels into our vectors. The vectors are as follows:
69 pix1v: pix1[0]-pix1[15]
70 pix2v: pix2[0]-pix2[15] pix2iv: pix2[1]-pix2[16]
72 tv = (vector unsigned char *) pix1;
73 pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1));
75 tv = (vector unsigned char *) &pix2[0];
76 pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0]));
78 tv = (vector unsigned char *) &pix2[1];
79 pix2iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[1]));
81 /* Calculate the average vector */
82 avgv = vec_avg(pix2v, pix2iv);
84 /* Calculate a sum of abs differences vector */
85 t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv));
87 /* Add each 4 pixel group together and put 4 results into sad */
88 sad = vec_sum4s(t5, sad);
93 /* Sum up the four partial sums, and put the result into s */
94 sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
95 sumdiffs = vec_splat(sumdiffs, 3);
96 vec_ste(sumdiffs, 0, &s);
101 int sad16_y2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
104 int s __attribute__((aligned(16)));
105 const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0);
106 vector unsigned char *tv;
107 vector unsigned char pix1v, pix2v, pix3v, avgv, t5;
108 vector unsigned int sad;
109 vector signed int sumdiffs;
110 uint8_t *pix3 = pix2 + line_size;
113 sad = (vector unsigned int)vec_splat_u32(0);
116 Due to the fact that pix3 = pix2 + line_size, the pix3 of one
117 iteration becomes pix2 in the next iteration. We can use this
118 fact to avoid a potentially expensive unaligned read, each
119 time around the loop.
120 Read unaligned pixels into our vectors. The vectors are as follows:
121 pix2v: pix2[0]-pix2[15]
122 Split the pixel vectors into shorts
124 tv = (vector unsigned char *) &pix2[0];
125 pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0]));
129 Read unaligned pixels into our vectors. The vectors are as follows:
130 pix1v: pix1[0]-pix1[15]
131 pix3v: pix3[0]-pix3[15]
133 tv = (vector unsigned char *) pix1;
134 pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1));
136 tv = (vector unsigned char *) &pix3[0];
137 pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0]));
139 /* Calculate the average vector */
140 avgv = vec_avg(pix2v, pix3v);
142 /* Calculate a sum of abs differences vector */
143 t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv));
145 /* Add each 4 pixel group together and put 4 results into sad */
146 sad = vec_sum4s(t5, sad);
154 /* Sum up the four partial sums, and put the result into s */
155 sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
156 sumdiffs = vec_splat(sumdiffs, 3);
157 vec_ste(sumdiffs, 0, &s);
161 int sad16_xy2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
164 int s __attribute__((aligned(16)));
165 uint8_t *pix3 = pix2 + line_size;
166 const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0);
167 const_vector unsigned short two = (const_vector unsigned short)vec_splat_u16(2);
168 vector unsigned char *tv, avgv, t5;
169 vector unsigned char pix1v, pix2v, pix3v, pix2iv, pix3iv;
170 vector unsigned short pix2lv, pix2hv, pix2ilv, pix2ihv;
171 vector unsigned short pix3lv, pix3hv, pix3ilv, pix3ihv;
172 vector unsigned short avghv, avglv;
173 vector unsigned short t1, t2, t3, t4;
174 vector unsigned int sad;
175 vector signed int sumdiffs;
177 sad = (vector unsigned int)vec_splat_u32(0);
182 Due to the fact that pix3 = pix2 + line_size, the pix3 of one
183 iteration becomes pix2 in the next iteration. We can use this
184 fact to avoid a potentially expensive unaligned read, as well
185 as some splitting, and vector addition each time around the loop.
186 Read unaligned pixels into our vectors. The vectors are as follows:
187 pix2v: pix2[0]-pix2[15] pix2iv: pix2[1]-pix2[16]
188 Split the pixel vectors into shorts
190 tv = (vector unsigned char *) &pix2[0];
191 pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0]));
193 tv = (vector unsigned char *) &pix2[1];
194 pix2iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[1]));
196 pix2hv = (vector unsigned short) vec_mergeh(zero, pix2v);
197 pix2lv = (vector unsigned short) vec_mergel(zero, pix2v);
198 pix2ihv = (vector unsigned short) vec_mergeh(zero, pix2iv);
199 pix2ilv = (vector unsigned short) vec_mergel(zero, pix2iv);
200 t1 = vec_add(pix2hv, pix2ihv);
201 t2 = vec_add(pix2lv, pix2ilv);
205 Read unaligned pixels into our vectors. The vectors are as follows:
206 pix1v: pix1[0]-pix1[15]
207 pix3v: pix3[0]-pix3[15] pix3iv: pix3[1]-pix3[16]
209 tv = (vector unsigned char *) pix1;
210 pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1));
212 tv = (vector unsigned char *) &pix3[0];
213 pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0]));
215 tv = (vector unsigned char *) &pix3[1];
216 pix3iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[1]));
219 Note that Altivec does have vec_avg, but this works on vector pairs
220 and rounds up. We could do avg(avg(a,b),avg(c,d)), but the rounding
221 would mean that, for example, avg(3,0,0,1) = 2, when it should be 1.
222 Instead, we have to split the pixel vectors into vectors of shorts,
223 and do the averaging by hand.
226 /* Split the pixel vectors into shorts */
227 pix3hv = (vector unsigned short) vec_mergeh(zero, pix3v);
228 pix3lv = (vector unsigned short) vec_mergel(zero, pix3v);
229 pix3ihv = (vector unsigned short) vec_mergeh(zero, pix3iv);
230 pix3ilv = (vector unsigned short) vec_mergel(zero, pix3iv);
232 /* Do the averaging on them */
233 t3 = vec_add(pix3hv, pix3ihv);
234 t4 = vec_add(pix3lv, pix3ilv);
236 avghv = vec_sr(vec_add(vec_add(t1, t3), two), two);
237 avglv = vec_sr(vec_add(vec_add(t2, t4), two), two);
239 /* Pack the shorts back into a result */
240 avgv = vec_pack(avghv, avglv);
242 /* Calculate a sum of abs differences vector */
243 t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv));
245 /* Add each 4 pixel group together and put 4 results into sad */
246 sad = vec_sum4s(t5, sad);
250 /* Transfer the calculated values for pix3 into pix2 */
254 /* Sum up the four partial sums, and put the result into s */
255 sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
256 sumdiffs = vec_splat(sumdiffs, 3);
257 vec_ste(sumdiffs, 0, &s);
262 int sad16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
265 int s __attribute__((aligned(16)));
266 const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
267 vector unsigned char perm1, perm2, *pix1v, *pix2v;
268 vector unsigned char t1, t2, t3,t4, t5;
269 vector unsigned int sad;
270 vector signed int sumdiffs;
272 sad = (vector unsigned int)vec_splat_u32(0);
276 /* Read potentially unaligned pixels into t1 and t2 */
277 perm1 = vec_lvsl(0, pix1);
278 pix1v = (vector unsigned char *) pix1;
279 perm2 = vec_lvsl(0, pix2);
280 pix2v = (vector unsigned char *) pix2;
281 t1 = vec_perm(pix1v[0], pix1v[1], perm1);
282 t2 = vec_perm(pix2v[0], pix2v[1], perm2);
284 /* Calculate a sum of abs differences vector */
285 t3 = vec_max(t1, t2);
286 t4 = vec_min(t1, t2);
287 t5 = vec_sub(t3, t4);
289 /* Add each 4 pixel group together and put 4 results into sad */
290 sad = vec_sum4s(t5, sad);
296 /* Sum up the four partial sums, and put the result into s */
297 sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
298 sumdiffs = vec_splat(sumdiffs, 3);
299 vec_ste(sumdiffs, 0, &s);
304 int sad8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
307 int s __attribute__((aligned(16)));
308 const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
309 vector unsigned char perm1, perm2, permclear, *pix1v, *pix2v;
310 vector unsigned char t1, t2, t3,t4, t5;
311 vector unsigned int sad;
312 vector signed int sumdiffs;
314 sad = (vector unsigned int)vec_splat_u32(0);
316 permclear = (vector unsigned char)AVV(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0);
319 /* Read potentially unaligned pixels into t1 and t2
320 Since we're reading 16 pixels, and actually only want 8,
321 mask out the last 8 pixels. The 0s don't change the sum. */
322 perm1 = vec_lvsl(0, pix1);
323 pix1v = (vector unsigned char *) pix1;
324 perm2 = vec_lvsl(0, pix2);
325 pix2v = (vector unsigned char *) pix2;
326 t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear);
327 t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear);
329 /* Calculate a sum of abs differences vector */
330 t3 = vec_max(t1, t2);
331 t4 = vec_min(t1, t2);
332 t5 = vec_sub(t3, t4);
334 /* Add each 4 pixel group together and put 4 results into sad */
335 sad = vec_sum4s(t5, sad);
341 /* Sum up the four partial sums, and put the result into s */
342 sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
343 sumdiffs = vec_splat(sumdiffs, 3);
344 vec_ste(sumdiffs, 0, &s);
349 int pix_norm1_altivec(uint8_t *pix, int line_size)
352 int s __attribute__((aligned(16)));
353 const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
354 vector unsigned char *tv;
355 vector unsigned char pixv;
356 vector unsigned int sv;
357 vector signed int sum;
359 sv = (vector unsigned int)vec_splat_u32(0);
362 for (i = 0; i < 16; i++) {
363 /* Read in the potentially unaligned pixels */
364 tv = (vector unsigned char *) pix;
365 pixv = vec_perm(tv[0], tv[1], vec_lvsl(0, pix));
367 /* Square the values, and add them to our sum */
368 sv = vec_msum(pixv, pixv, sv);
372 /* Sum up the four partial sums, and put the result into s */
373 sum = vec_sums((vector signed int) sv, (vector signed int) zero);
374 sum = vec_splat(sum, 3);
381 * Sum of Squared Errors for a 8x8 block.
383 * It's the sad8_altivec code above w/ squaring added.
385 int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
388 int s __attribute__((aligned(16)));
389 const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
390 vector unsigned char perm1, perm2, permclear, *pix1v, *pix2v;
391 vector unsigned char t1, t2, t3,t4, t5;
392 vector unsigned int sum;
393 vector signed int sumsqr;
395 sum = (vector unsigned int)vec_splat_u32(0);
397 permclear = (vector unsigned char)AVV(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0);
401 /* Read potentially unaligned pixels into t1 and t2
402 Since we're reading 16 pixels, and actually only want 8,
403 mask out the last 8 pixels. The 0s don't change the sum. */
404 perm1 = vec_lvsl(0, pix1);
405 pix1v = (vector unsigned char *) pix1;
406 perm2 = vec_lvsl(0, pix2);
407 pix2v = (vector unsigned char *) pix2;
408 t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear);
409 t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear);
412 Since we want to use unsigned chars, we can take advantage
413 of the fact that abs(a-b)^2 = (a-b)^2.
416 /* Calculate abs differences vector */
417 t3 = vec_max(t1, t2);
418 t4 = vec_min(t1, t2);
419 t5 = vec_sub(t3, t4);
421 /* Square the values and add them to our sum */
422 sum = vec_msum(t5, t5, sum);
428 /* Sum up the four partial sums, and put the result into s */
429 sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero);
430 sumsqr = vec_splat(sumsqr, 3);
431 vec_ste(sumsqr, 0, &s);
437 * Sum of Squared Errors for a 16x16 block.
439 * It's the sad16_altivec code above w/ squaring added.
441 int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
444 int s __attribute__((aligned(16)));
445 const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
446 vector unsigned char perm1, perm2, *pix1v, *pix2v;
447 vector unsigned char t1, t2, t3,t4, t5;
448 vector unsigned int sum;
449 vector signed int sumsqr;
451 sum = (vector unsigned int)vec_splat_u32(0);
454 /* Read potentially unaligned pixels into t1 and t2 */
455 perm1 = vec_lvsl(0, pix1);
456 pix1v = (vector unsigned char *) pix1;
457 perm2 = vec_lvsl(0, pix2);
458 pix2v = (vector unsigned char *) pix2;
459 t1 = vec_perm(pix1v[0], pix1v[1], perm1);
460 t2 = vec_perm(pix2v[0], pix2v[1], perm2);
463 Since we want to use unsigned chars, we can take advantage
464 of the fact that abs(a-b)^2 = (a-b)^2.
467 /* Calculate abs differences vector */
468 t3 = vec_max(t1, t2);
469 t4 = vec_min(t1, t2);
470 t5 = vec_sub(t3, t4);
472 /* Square the values and add them to our sum */
473 sum = vec_msum(t5, t5, sum);
479 /* Sum up the four partial sums, and put the result into s */
480 sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero);
481 sumsqr = vec_splat(sumsqr, 3);
482 vec_ste(sumsqr, 0, &s);
487 int pix_sum_altivec(uint8_t * pix, int line_size)
489 const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
490 vector unsigned char perm, *pixv;
491 vector unsigned char t1;
492 vector unsigned int sad;
493 vector signed int sumdiffs;
496 int s __attribute__((aligned(16)));
498 sad = (vector unsigned int)vec_splat_u32(0);
500 for (i = 0; i < 16; i++) {
501 /* Read the potentially unaligned 16 pixels into t1 */
502 perm = vec_lvsl(0, pix);
503 pixv = (vector unsigned char *) pix;
504 t1 = vec_perm(pixv[0], pixv[1], perm);
506 /* Add each 4 pixel group together and put 4 results into sad */
507 sad = vec_sum4s(t1, sad);
512 /* Sum up the four partial sums, and put the result into s */
513 sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
514 sumdiffs = vec_splat(sumdiffs, 3);
515 vec_ste(sumdiffs, 0, &s);
520 void get_pixels_altivec(DCTELEM *restrict block, const uint8_t *pixels, int line_size)
523 vector unsigned char perm, bytes, *pixv;
524 const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0);
525 vector signed short shorts;
529 // Read potentially unaligned pixels.
530 // We're reading 16 pixels, and actually only want 8,
531 // but we simply ignore the extras.
532 perm = vec_lvsl(0, pixels);
533 pixv = (vector unsigned char *) pixels;
534 bytes = vec_perm(pixv[0], pixv[1], perm);
536 // convert the bytes into shorts
537 shorts = (vector signed short)vec_mergeh(zero, bytes);
539 // save the data to the block, we assume the block is 16-byte aligned
540 vec_st(shorts, i*16, (vector signed short*)block);
546 void diff_pixels_altivec(DCTELEM *restrict block, const uint8_t *s1,
547 const uint8_t *s2, int stride)
550 vector unsigned char perm, bytes, *pixv;
551 const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0);
552 vector signed short shorts1, shorts2;
556 // Read potentially unaligned pixels
557 // We're reading 16 pixels, and actually only want 8,
558 // but we simply ignore the extras.
559 perm = vec_lvsl(0, s1);
560 pixv = (vector unsigned char *) s1;
561 bytes = vec_perm(pixv[0], pixv[1], perm);
563 // convert the bytes into shorts
564 shorts1 = (vector signed short)vec_mergeh(zero, bytes);
566 // Do the same for the second block of pixels
567 perm = vec_lvsl(0, s2);
568 pixv = (vector unsigned char *) s2;
569 bytes = vec_perm(pixv[0], pixv[1], perm);
571 // convert the bytes into shorts
572 shorts2 = (vector signed short)vec_mergeh(zero, bytes);
574 // Do the subtraction
575 shorts1 = vec_sub(shorts1, shorts2);
577 // save the data to the block, we assume the block is 16-byte aligned
578 vec_st(shorts1, 0, (vector signed short*)block);
585 // The code below is a copy of the code above... This is a manual
588 // Read potentially unaligned pixels
589 // We're reading 16 pixels, and actually only want 8,
590 // but we simply ignore the extras.
591 perm = vec_lvsl(0, s1);
592 pixv = (vector unsigned char *) s1;
593 bytes = vec_perm(pixv[0], pixv[1], perm);
595 // convert the bytes into shorts
596 shorts1 = (vector signed short)vec_mergeh(zero, bytes);
598 // Do the same for the second block of pixels
599 perm = vec_lvsl(0, s2);
600 pixv = (vector unsigned char *) s2;
601 bytes = vec_perm(pixv[0], pixv[1], perm);
603 // convert the bytes into shorts
604 shorts2 = (vector signed short)vec_mergeh(zero, bytes);
606 // Do the subtraction
607 shorts1 = vec_sub(shorts1, shorts2);
609 // save the data to the block, we assume the block is 16-byte aligned
610 vec_st(shorts1, 0, (vector signed short*)block);
618 void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w) {
619 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
621 for(i=0; i+7<w; i++){
622 dst[i+0] += src[i+0];
623 dst[i+1] += src[i+1];
624 dst[i+2] += src[i+2];
625 dst[i+3] += src[i+3];
626 dst[i+4] += src[i+4];
627 dst[i+5] += src[i+5];
628 dst[i+6] += src[i+6];
629 dst[i+7] += src[i+7];
632 dst[i+0] += src[i+0];
633 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
635 register vector unsigned char vdst, vsrc;
637 /* dst and src are 16 bytes-aligned (guaranteed) */
638 for(i = 0 ; (i + 15) < w ; i++)
640 vdst = vec_ld(i << 4, (unsigned char*)dst);
641 vsrc = vec_ld(i << 4, (unsigned char*)src);
642 vdst = vec_add(vsrc, vdst);
643 vec_st(vdst, i << 4, (unsigned char*)dst);
645 /* if w is not a multiple of 16 */
646 for (; (i < w) ; i++)
650 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
653 /* next one assumes that ((line_size % 16) == 0) */
654 void put_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
656 POWERPC_PERF_DECLARE(altivec_put_pixels16_num, 1);
657 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
660 POWERPC_PERF_START_COUNT(altivec_put_pixels16_num, 1);
663 *((uint32_t*)(block)) = LD32(pixels);
664 *((uint32_t*)(block+4)) = LD32(pixels+4);
665 *((uint32_t*)(block+8)) = LD32(pixels+8);
666 *((uint32_t*)(block+12)) = LD32(pixels+12);
671 POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_num, 1);
673 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
674 register vector unsigned char pixelsv1, pixelsv2;
675 register vector unsigned char pixelsv1B, pixelsv2B;
676 register vector unsigned char pixelsv1C, pixelsv2C;
677 register vector unsigned char pixelsv1D, pixelsv2D;
679 register vector unsigned char perm = vec_lvsl(0, pixels);
681 register int line_size_2 = line_size << 1;
682 register int line_size_3 = line_size + line_size_2;
683 register int line_size_4 = line_size << 2;
685 POWERPC_PERF_START_COUNT(altivec_put_pixels16_num, 1);
686 // hand-unrolling the loop by 4 gains about 15%
687 // mininum execution time goes from 74 to 60 cycles
688 // it's faster than -funroll-loops, but using
689 // -funroll-loops w/ this is bad - 74 cycles again.
690 // all this is on a 7450, tuning for the 7450
693 pixelsv1 = vec_ld(0, (unsigned char*)pixels);
694 pixelsv2 = vec_ld(16, (unsigned char*)pixels);
695 vec_st(vec_perm(pixelsv1, pixelsv2, perm),
696 0, (unsigned char*)block);
701 for(i=0; i<h; i+=4) {
702 pixelsv1 = vec_ld(0, (unsigned char*)pixels);
703 pixelsv2 = vec_ld(16, (unsigned char*)pixels);
704 pixelsv1B = vec_ld(line_size, (unsigned char*)pixels);
705 pixelsv2B = vec_ld(16 + line_size, (unsigned char*)pixels);
706 pixelsv1C = vec_ld(line_size_2, (unsigned char*)pixels);
707 pixelsv2C = vec_ld(16 + line_size_2, (unsigned char*)pixels);
708 pixelsv1D = vec_ld(line_size_3, (unsigned char*)pixels);
709 pixelsv2D = vec_ld(16 + line_size_3, (unsigned char*)pixels);
710 vec_st(vec_perm(pixelsv1, pixelsv2, perm),
711 0, (unsigned char*)block);
712 vec_st(vec_perm(pixelsv1B, pixelsv2B, perm),
713 line_size, (unsigned char*)block);
714 vec_st(vec_perm(pixelsv1C, pixelsv2C, perm),
715 line_size_2, (unsigned char*)block);
716 vec_st(vec_perm(pixelsv1D, pixelsv2D, perm),
717 line_size_3, (unsigned char*)block);
722 POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_num, 1);
724 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
727 /* next one assumes that ((line_size % 16) == 0) */
728 #define op_avg(a,b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) )
729 void avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
731 POWERPC_PERF_DECLARE(altivec_avg_pixels16_num, 1);
732 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
735 POWERPC_PERF_START_COUNT(altivec_avg_pixels16_num, 1);
738 op_avg(*((uint32_t*)(block)),LD32(pixels));
739 op_avg(*((uint32_t*)(block+4)),LD32(pixels+4));
740 op_avg(*((uint32_t*)(block+8)),LD32(pixels+8));
741 op_avg(*((uint32_t*)(block+12)),LD32(pixels+12));
746 POWERPC_PERF_STOP_COUNT(altivec_avg_pixels16_num, 1);
748 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
749 register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
750 register vector unsigned char perm = vec_lvsl(0, pixels);
753 POWERPC_PERF_START_COUNT(altivec_avg_pixels16_num, 1);
756 pixelsv1 = vec_ld(0, (unsigned char*)pixels);
757 pixelsv2 = vec_ld(16, (unsigned char*)pixels);
758 blockv = vec_ld(0, block);
759 pixelsv = vec_perm(pixelsv1, pixelsv2, perm);
760 blockv = vec_avg(blockv,pixelsv);
761 vec_st(blockv, 0, (unsigned char*)block);
766 POWERPC_PERF_STOP_COUNT(altivec_avg_pixels16_num, 1);
768 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
771 /* next one assumes that ((line_size % 8) == 0) */
772 void avg_pixels8_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
774 POWERPC_PERF_DECLARE(altivec_avg_pixels8_num, 1);
775 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
777 POWERPC_PERF_START_COUNT(altivec_avg_pixels8_num, 1);
778 for (i = 0; i < h; i++) {
779 *((uint32_t *) (block)) =
780 (((*((uint32_t *) (block))) |
781 ((((const struct unaligned_32 *) (pixels))->l))) -
782 ((((*((uint32_t *) (block))) ^
783 ((((const struct unaligned_32 *) (pixels))->
784 l))) & 0xFEFEFEFEUL) >> 1));
785 *((uint32_t *) (block + 4)) =
786 (((*((uint32_t *) (block + 4))) |
787 ((((const struct unaligned_32 *) (pixels + 4))->l))) -
788 ((((*((uint32_t *) (block + 4))) ^
789 ((((const struct unaligned_32 *) (pixels +
791 l))) & 0xFEFEFEFEUL) >> 1));
795 POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_num, 1);
797 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
798 register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
801 POWERPC_PERF_START_COUNT(altivec_avg_pixels8_num, 1);
803 for (i = 0; i < h; i++) {
805 block is 8 bytes-aligned, so we're either in the
806 left block (16 bytes-aligned) or in the right block (not)
808 int rightside = ((unsigned long)block & 0x0000000F);
810 blockv = vec_ld(0, block);
811 pixelsv1 = vec_ld(0, (unsigned char*)pixels);
812 pixelsv2 = vec_ld(16, (unsigned char*)pixels);
813 pixelsv = vec_perm(pixelsv1, pixelsv2, vec_lvsl(0, pixels));
817 pixelsv = vec_perm(blockv, pixelsv, vcprm(0,1,s0,s1));
821 pixelsv = vec_perm(blockv, pixelsv, vcprm(s0,s1,2,3));
824 blockv = vec_avg(blockv, pixelsv);
826 vec_st(blockv, 0, block);
832 POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_num, 1);
834 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
837 /* next one assumes that ((line_size % 8) == 0) */
838 void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
840 POWERPC_PERF_DECLARE(altivec_put_pixels8_xy2_num, 1);
841 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
843 POWERPC_PERF_START_COUNT(altivec_put_pixels8_xy2_num, 1);
844 for (j = 0; j < 2; j++) {
846 const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
848 (((const struct unaligned_32 *) (pixels + 1))->l);
850 (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
852 ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
855 for (i = 0; i < h; i += 2) {
856 uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
857 uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
858 l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
859 h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
860 *((uint32_t *) block) =
861 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
864 a = (((const struct unaligned_32 *) (pixels))->l);
865 b = (((const struct unaligned_32 *) (pixels + 1))->l);
866 l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
867 h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
868 *((uint32_t *) block) =
869 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
872 } pixels += 4 - line_size * (h + 1);
873 block += 4 - line_size * h;
876 POWERPC_PERF_STOP_COUNT(altivec_put_pixels8_xy2_num, 1);
878 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
880 register vector unsigned char
883 register vector unsigned char
884 blockv, temp1, temp2;
885 register vector unsigned short
886 pixelssum1, pixelssum2, temp3;
887 register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
888 register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
890 temp1 = vec_ld(0, pixels);
891 temp2 = vec_ld(16, pixels);
892 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
893 if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
899 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
901 pixelsv1 = vec_mergeh(vczero, pixelsv1);
902 pixelsv2 = vec_mergeh(vczero, pixelsv2);
903 pixelssum1 = vec_add((vector unsigned short)pixelsv1,
904 (vector unsigned short)pixelsv2);
905 pixelssum1 = vec_add(pixelssum1, vctwo);
907 POWERPC_PERF_START_COUNT(altivec_put_pixels8_xy2_num, 1);
908 for (i = 0; i < h ; i++) {
909 int rightside = ((unsigned long)block & 0x0000000F);
910 blockv = vec_ld(0, block);
912 temp1 = vec_ld(line_size, pixels);
913 temp2 = vec_ld(line_size + 16, pixels);
914 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
915 if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
921 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
924 pixelsv1 = vec_mergeh(vczero, pixelsv1);
925 pixelsv2 = vec_mergeh(vczero, pixelsv2);
926 pixelssum2 = vec_add((vector unsigned short)pixelsv1,
927 (vector unsigned short)pixelsv2);
928 temp3 = vec_add(pixelssum1, pixelssum2);
929 temp3 = vec_sra(temp3, vctwo);
930 pixelssum1 = vec_add(pixelssum2, vctwo);
931 pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
935 blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
939 blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
942 vec_st(blockv, 0, block);
948 POWERPC_PERF_STOP_COUNT(altivec_put_pixels8_xy2_num, 1);
949 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
952 /* next one assumes that ((line_size % 8) == 0) */
953 void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
955 POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels8_xy2_num, 1);
956 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
958 POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
959 for (j = 0; j < 2; j++) {
961 const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
963 (((const struct unaligned_32 *) (pixels + 1))->l);
965 (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
967 ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
970 for (i = 0; i < h; i += 2) {
971 uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
972 uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
973 l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
974 h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
975 *((uint32_t *) block) =
976 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
979 a = (((const struct unaligned_32 *) (pixels))->l);
980 b = (((const struct unaligned_32 *) (pixels + 1))->l);
981 l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
982 h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
983 *((uint32_t *) block) =
984 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
987 } pixels += 4 - line_size * (h + 1);
988 block += 4 - line_size * h;
991 POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
993 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
995 register vector unsigned char
998 register vector unsigned char
999 blockv, temp1, temp2;
1000 register vector unsigned short
1001 pixelssum1, pixelssum2, temp3;
1002 register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
1003 register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1);
1004 register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
1006 temp1 = vec_ld(0, pixels);
1007 temp2 = vec_ld(16, pixels);
1008 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
1009 if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
1015 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
1017 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1018 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1019 pixelssum1 = vec_add((vector unsigned short)pixelsv1,
1020 (vector unsigned short)pixelsv2);
1021 pixelssum1 = vec_add(pixelssum1, vcone);
1023 POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
1024 for (i = 0; i < h ; i++) {
1025 int rightside = ((unsigned long)block & 0x0000000F);
1026 blockv = vec_ld(0, block);
1028 temp1 = vec_ld(line_size, pixels);
1029 temp2 = vec_ld(line_size + 16, pixels);
1030 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
1031 if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
1037 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
1040 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1041 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1042 pixelssum2 = vec_add((vector unsigned short)pixelsv1,
1043 (vector unsigned short)pixelsv2);
1044 temp3 = vec_add(pixelssum1, pixelssum2);
1045 temp3 = vec_sra(temp3, vctwo);
1046 pixelssum1 = vec_add(pixelssum2, vcone);
1047 pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
1051 blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
1055 blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
1058 vec_st(blockv, 0, block);
1061 pixels += line_size;
1064 POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
1065 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
1068 /* next one assumes that ((line_size % 16) == 0) */
1069 void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
1071 POWERPC_PERF_DECLARE(altivec_put_pixels16_xy2_num, 1);
1072 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
1074 POWERPC_PERF_START_COUNT(altivec_put_pixels16_xy2_num, 1);
1075 for (j = 0; j < 4; j++) {
1077 const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
1079 (((const struct unaligned_32 *) (pixels + 1))->l);
1081 (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
1083 ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1085 pixels += line_size;
1086 for (i = 0; i < h; i += 2) {
1087 uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
1088 uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
1089 l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
1090 h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1091 *((uint32_t *) block) =
1092 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
1093 pixels += line_size;
1095 a = (((const struct unaligned_32 *) (pixels))->l);
1096 b = (((const struct unaligned_32 *) (pixels + 1))->l);
1097 l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
1098 h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1099 *((uint32_t *) block) =
1100 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
1101 pixels += line_size;
1103 } pixels += 4 - line_size * (h + 1);
1104 block += 4 - line_size * h;
1107 POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_xy2_num, 1);
1109 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
1111 register vector unsigned char
1112 pixelsv1, pixelsv2, pixelsv3, pixelsv4;
1113 register vector unsigned char
1114 blockv, temp1, temp2;
1115 register vector unsigned short
1116 pixelssum1, pixelssum2, temp3,
1117 pixelssum3, pixelssum4, temp4;
1118 register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
1119 register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
1121 POWERPC_PERF_START_COUNT(altivec_put_pixels16_xy2_num, 1);
1123 temp1 = vec_ld(0, pixels);
1124 temp2 = vec_ld(16, pixels);
1125 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
1126 if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
1132 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
1134 pixelsv3 = vec_mergel(vczero, pixelsv1);
1135 pixelsv4 = vec_mergel(vczero, pixelsv2);
1136 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1137 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1138 pixelssum3 = vec_add((vector unsigned short)pixelsv3,
1139 (vector unsigned short)pixelsv4);
1140 pixelssum3 = vec_add(pixelssum3, vctwo);
1141 pixelssum1 = vec_add((vector unsigned short)pixelsv1,
1142 (vector unsigned short)pixelsv2);
1143 pixelssum1 = vec_add(pixelssum1, vctwo);
1145 for (i = 0; i < h ; i++) {
1146 blockv = vec_ld(0, block);
1148 temp1 = vec_ld(line_size, pixels);
1149 temp2 = vec_ld(line_size + 16, pixels);
1150 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
1151 if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
1157 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
1160 pixelsv3 = vec_mergel(vczero, pixelsv1);
1161 pixelsv4 = vec_mergel(vczero, pixelsv2);
1162 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1163 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1165 pixelssum4 = vec_add((vector unsigned short)pixelsv3,
1166 (vector unsigned short)pixelsv4);
1167 pixelssum2 = vec_add((vector unsigned short)pixelsv1,
1168 (vector unsigned short)pixelsv2);
1169 temp4 = vec_add(pixelssum3, pixelssum4);
1170 temp4 = vec_sra(temp4, vctwo);
1171 temp3 = vec_add(pixelssum1, pixelssum2);
1172 temp3 = vec_sra(temp3, vctwo);
1174 pixelssum3 = vec_add(pixelssum4, vctwo);
1175 pixelssum1 = vec_add(pixelssum2, vctwo);
1177 blockv = vec_packsu(temp3, temp4);
1179 vec_st(blockv, 0, block);
1182 pixels += line_size;
1185 POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_xy2_num, 1);
1186 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
1189 /* next one assumes that ((line_size % 16) == 0) */
1190 void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
1192 POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels16_xy2_num, 1);
1193 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
1195 POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
1196 for (j = 0; j < 4; j++) {
1198 const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
1200 (((const struct unaligned_32 *) (pixels + 1))->l);
1202 (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
1204 ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1206 pixels += line_size;
1207 for (i = 0; i < h; i += 2) {
1208 uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
1209 uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
1210 l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
1211 h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1212 *((uint32_t *) block) =
1213 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
1214 pixels += line_size;
1216 a = (((const struct unaligned_32 *) (pixels))->l);
1217 b = (((const struct unaligned_32 *) (pixels + 1))->l);
1218 l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
1219 h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1220 *((uint32_t *) block) =
1221 h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
1222 pixels += line_size;
1224 } pixels += 4 - line_size * (h + 1);
1225 block += 4 - line_size * h;
1228 POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
1230 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
1232 register vector unsigned char
1233 pixelsv1, pixelsv2, pixelsv3, pixelsv4;
1234 register vector unsigned char
1235 blockv, temp1, temp2;
1236 register vector unsigned short
1237 pixelssum1, pixelssum2, temp3,
1238 pixelssum3, pixelssum4, temp4;
1239 register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
1240 register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1);
1241 register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
1243 POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
1245 temp1 = vec_ld(0, pixels);
1246 temp2 = vec_ld(16, pixels);
1247 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
1248 if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
1254 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
1256 pixelsv3 = vec_mergel(vczero, pixelsv1);
1257 pixelsv4 = vec_mergel(vczero, pixelsv2);
1258 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1259 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1260 pixelssum3 = vec_add((vector unsigned short)pixelsv3,
1261 (vector unsigned short)pixelsv4);
1262 pixelssum3 = vec_add(pixelssum3, vcone);
1263 pixelssum1 = vec_add((vector unsigned short)pixelsv1,
1264 (vector unsigned short)pixelsv2);
1265 pixelssum1 = vec_add(pixelssum1, vcone);
1267 for (i = 0; i < h ; i++) {
1268 blockv = vec_ld(0, block);
1270 temp1 = vec_ld(line_size, pixels);
1271 temp2 = vec_ld(line_size + 16, pixels);
1272 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
1273 if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
1279 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
1282 pixelsv3 = vec_mergel(vczero, pixelsv1);
1283 pixelsv4 = vec_mergel(vczero, pixelsv2);
1284 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1285 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1287 pixelssum4 = vec_add((vector unsigned short)pixelsv3,
1288 (vector unsigned short)pixelsv4);
1289 pixelssum2 = vec_add((vector unsigned short)pixelsv1,
1290 (vector unsigned short)pixelsv2);
1291 temp4 = vec_add(pixelssum3, pixelssum4);
1292 temp4 = vec_sra(temp4, vctwo);
1293 temp3 = vec_add(pixelssum1, pixelssum2);
1294 temp3 = vec_sra(temp3, vctwo);
1296 pixelssum3 = vec_add(pixelssum4, vcone);
1297 pixelssum1 = vec_add(pixelssum2, vcone);
1299 blockv = vec_packsu(temp3, temp4);
1301 vec_st(blockv, 0, block);
1304 pixels += line_size;
1307 POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
1308 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */
1311 #ifdef CONFIG_DARWIN
1312 int hadamard8_diff8x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
1313 POWERPC_PERF_DECLARE(altivec_hadamard8_diff8x8_num, 1);
1315 POWERPC_PERF_START_COUNT(altivec_hadamard8_diff8x8_num, 1);
1316 register const_vector unsigned char vzero = (const_vector unsigned char)vec_splat_u8(0);
1317 register vector signed short temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
1319 register const_vector signed short vprod1 = (const_vector signed short)AVV( 1,-1, 1,-1, 1,-1, 1,-1);
1320 register const_vector signed short vprod2 = (const_vector signed short)AVV( 1, 1,-1,-1, 1, 1,-1,-1);
1321 register const_vector signed short vprod3 = (const_vector signed short)AVV( 1, 1, 1, 1,-1,-1,-1,-1);
1322 register const_vector unsigned char perm1 = (const_vector unsigned char)
1323 AVV(0x02, 0x03, 0x00, 0x01,
1324 0x06, 0x07, 0x04, 0x05,
1325 0x0A, 0x0B, 0x08, 0x09,
1326 0x0E, 0x0F, 0x0C, 0x0D);
1327 register const_vector unsigned char perm2 = (const_vector unsigned char)
1328 AVV(0x04, 0x05, 0x06, 0x07,
1329 0x00, 0x01, 0x02, 0x03,
1330 0x0C, 0x0D, 0x0E, 0x0F,
1331 0x08, 0x09, 0x0A, 0x0B);
1332 register const_vector unsigned char perm3 = (const_vector unsigned char)
1333 AVV(0x08, 0x09, 0x0A, 0x0B,
1334 0x0C, 0x0D, 0x0E, 0x0F,
1335 0x00, 0x01, 0x02, 0x03,
1336 0x04, 0x05, 0x06, 0x07);
1338 #define ONEITERBUTTERFLY(i, res) \
1340 register vector unsigned char src1, src2, srcO; \
1341 register vector unsigned char dst1, dst2, dstO; \
1342 src1 = vec_ld(stride * i, src); \
1343 if ((((stride * i) + (unsigned long)src) & 0x0000000F) > 8) \
1344 src2 = vec_ld((stride * i) + 16, src); \
1345 srcO = vec_perm(src1, src2, vec_lvsl(stride * i, src)); \
1346 dst1 = vec_ld(stride * i, dst); \
1347 if ((((stride * i) + (unsigned long)dst) & 0x0000000F) > 8) \
1348 dst2 = vec_ld((stride * i) + 16, dst); \
1349 dstO = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst)); \
1350 /* promote the unsigned chars to signed shorts */ \
1351 /* we're in the 8x8 function, we only care for the first 8 */ \
1352 register vector signed short srcV = \
1353 (vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)srcO); \
1354 register vector signed short dstV = \
1355 (vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)dstO); \
1356 /* substractions inside the first butterfly */ \
1357 register vector signed short but0 = vec_sub(srcV, dstV); \
1358 register vector signed short op1 = vec_perm(but0, but0, perm1); \
1359 register vector signed short but1 = vec_mladd(but0, vprod1, op1); \
1360 register vector signed short op2 = vec_perm(but1, but1, perm2); \
1361 register vector signed short but2 = vec_mladd(but1, vprod2, op2); \
1362 register vector signed short op3 = vec_perm(but2, but2, perm3); \
1363 res = vec_mladd(but2, vprod3, op3); \
1365 ONEITERBUTTERFLY(0, temp0);
1366 ONEITERBUTTERFLY(1, temp1);
1367 ONEITERBUTTERFLY(2, temp2);
1368 ONEITERBUTTERFLY(3, temp3);
1369 ONEITERBUTTERFLY(4, temp4);
1370 ONEITERBUTTERFLY(5, temp5);
1371 ONEITERBUTTERFLY(6, temp6);
1372 ONEITERBUTTERFLY(7, temp7);
1374 #undef ONEITERBUTTERFLY
1376 register vector signed int vsum;
1377 register vector signed short line0 = vec_add(temp0, temp1);
1378 register vector signed short line1 = vec_sub(temp0, temp1);
1379 register vector signed short line2 = vec_add(temp2, temp3);
1380 register vector signed short line3 = vec_sub(temp2, temp3);
1381 register vector signed short line4 = vec_add(temp4, temp5);
1382 register vector signed short line5 = vec_sub(temp4, temp5);
1383 register vector signed short line6 = vec_add(temp6, temp7);
1384 register vector signed short line7 = vec_sub(temp6, temp7);
1386 register vector signed short line0B = vec_add(line0, line2);
1387 register vector signed short line2B = vec_sub(line0, line2);
1388 register vector signed short line1B = vec_add(line1, line3);
1389 register vector signed short line3B = vec_sub(line1, line3);
1390 register vector signed short line4B = vec_add(line4, line6);
1391 register vector signed short line6B = vec_sub(line4, line6);
1392 register vector signed short line5B = vec_add(line5, line7);
1393 register vector signed short line7B = vec_sub(line5, line7);
1395 register vector signed short line0C = vec_add(line0B, line4B);
1396 register vector signed short line4C = vec_sub(line0B, line4B);
1397 register vector signed short line1C = vec_add(line1B, line5B);
1398 register vector signed short line5C = vec_sub(line1B, line5B);
1399 register vector signed short line2C = vec_add(line2B, line6B);
1400 register vector signed short line6C = vec_sub(line2B, line6B);
1401 register vector signed short line3C = vec_add(line3B, line7B);
1402 register vector signed short line7C = vec_sub(line3B, line7B);
1404 vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0));
1405 vsum = vec_sum4s(vec_abs(line1C), vsum);
1406 vsum = vec_sum4s(vec_abs(line2C), vsum);
1407 vsum = vec_sum4s(vec_abs(line3C), vsum);
1408 vsum = vec_sum4s(vec_abs(line4C), vsum);
1409 vsum = vec_sum4s(vec_abs(line5C), vsum);
1410 vsum = vec_sum4s(vec_abs(line6C), vsum);
1411 vsum = vec_sum4s(vec_abs(line7C), vsum);
1412 vsum = vec_sums(vsum, (vector signed int)vzero);
1413 vsum = vec_splat(vsum, 3);
1414 vec_ste(vsum, 0, &sum);
1416 POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff8x8_num, 1);
1421 16x8 works with 16 elements ; it allows to avoid replicating
1422 loads, and give the compiler more rooms for scheduling.
1423 It's only used from inside hadamard8_diff16_altivec.
1425 Unfortunately, it seems gcc-3.3 is a bit dumb, and
1426 the compiled code has a LOT of spill code, it seems
1427 gcc (unlike xlc) cannot keep everything in registers
1428 by itself. The following code include hand-made
1429 registers allocation. It's not clean, but on
1430 a 7450 the resulting code is much faster (best case
1431 fall from 700+ cycles to 550).
1433 xlc doesn't add spill code, but it doesn't know how to
1434 schedule for the 7450, and its code isn't much faster than
1435 gcc-3.3 on the 7450 (but uses 25% less instructions...)
1437 On the 970, the hand-made RA is still a win (arount 690
1438 vs. around 780), but xlc goes to around 660 on the
1442 static int hadamard8_diff16x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h) {
1444 register vector signed short
1453 register vector signed short
1462 register const_vector unsigned char vzero asm ("v31")= (const_vector unsigned char)vec_splat_u8(0);
1464 register const_vector signed short vprod1 asm ("v16")= (const_vector signed short)AVV( 1,-1, 1,-1, 1,-1, 1,-1);
1465 register const_vector signed short vprod2 asm ("v17")= (const_vector signed short)AVV( 1, 1,-1,-1, 1, 1,-1,-1);
1466 register const_vector signed short vprod3 asm ("v18")= (const_vector signed short)AVV( 1, 1, 1, 1,-1,-1,-1,-1);
1467 register const_vector unsigned char perm1 asm ("v19")= (const_vector unsigned char)
1468 AVV(0x02, 0x03, 0x00, 0x01,
1469 0x06, 0x07, 0x04, 0x05,
1470 0x0A, 0x0B, 0x08, 0x09,
1471 0x0E, 0x0F, 0x0C, 0x0D);
1472 register const_vector unsigned char perm2 asm ("v20")= (const_vector unsigned char)
1473 AVV(0x04, 0x05, 0x06, 0x07,
1474 0x00, 0x01, 0x02, 0x03,
1475 0x0C, 0x0D, 0x0E, 0x0F,
1476 0x08, 0x09, 0x0A, 0x0B);
1477 register const_vector unsigned char perm3 asm ("v21")= (const_vector unsigned char)
1478 AVV(0x08, 0x09, 0x0A, 0x0B,
1479 0x0C, 0x0D, 0x0E, 0x0F,
1480 0x00, 0x01, 0x02, 0x03,
1481 0x04, 0x05, 0x06, 0x07);
1483 #define ONEITERBUTTERFLY(i, res1, res2) \
1485 register vector unsigned char src1 asm ("v22"), src2 asm ("v23"); \
1486 register vector unsigned char dst1 asm ("v24"), dst2 asm ("v25"); \
1487 src1 = vec_ld(stride * i, src); \
1488 src2 = vec_ld((stride * i) + 16, src); \
1489 register vector unsigned char srcO asm ("v22") = vec_perm(src1, src2, vec_lvsl(stride * i, src)); \
1490 dst1 = vec_ld(stride * i, dst); \
1491 dst2 = vec_ld((stride * i) + 16, dst); \
1492 register vector unsigned char dstO asm ("v23") = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst)); \
1493 /* promote the unsigned chars to signed shorts */ \
1494 register vector signed short srcV asm ("v24") = \
1495 (vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)srcO); \
1496 register vector signed short dstV asm ("v25") = \
1497 (vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)dstO); \
1498 register vector signed short srcW asm ("v26") = \
1499 (vector signed short)vec_mergel((vector signed char)vzero, (vector signed char)srcO); \
1500 register vector signed short dstW asm ("v27") = \
1501 (vector signed short)vec_mergel((vector signed char)vzero, (vector signed char)dstO); \
1502 /* substractions inside the first butterfly */ \
1503 register vector signed short but0 asm ("v28") = vec_sub(srcV, dstV); \
1504 register vector signed short but0S asm ("v29") = vec_sub(srcW, dstW); \
1505 register vector signed short op1 asm ("v30") = vec_perm(but0, but0, perm1); \
1506 register vector signed short but1 asm ("v22") = vec_mladd(but0, vprod1, op1); \
1507 register vector signed short op1S asm ("v23") = vec_perm(but0S, but0S, perm1); \
1508 register vector signed short but1S asm ("v24") = vec_mladd(but0S, vprod1, op1S); \
1509 register vector signed short op2 asm ("v25") = vec_perm(but1, but1, perm2); \
1510 register vector signed short but2 asm ("v26") = vec_mladd(but1, vprod2, op2); \
1511 register vector signed short op2S asm ("v27") = vec_perm(but1S, but1S, perm2); \
1512 register vector signed short but2S asm ("v28") = vec_mladd(but1S, vprod2, op2S); \
1513 register vector signed short op3 asm ("v29") = vec_perm(but2, but2, perm3); \
1514 res1 = vec_mladd(but2, vprod3, op3); \
1515 register vector signed short op3S asm ("v30") = vec_perm(but2S, but2S, perm3); \
1516 res2 = vec_mladd(but2S, vprod3, op3S); \
1518 ONEITERBUTTERFLY(0, temp0, temp0S);
1519 ONEITERBUTTERFLY(1, temp1, temp1S);
1520 ONEITERBUTTERFLY(2, temp2, temp2S);
1521 ONEITERBUTTERFLY(3, temp3, temp3S);
1522 ONEITERBUTTERFLY(4, temp4, temp4S);
1523 ONEITERBUTTERFLY(5, temp5, temp5S);
1524 ONEITERBUTTERFLY(6, temp6, temp6S);
1525 ONEITERBUTTERFLY(7, temp7, temp7S);
1527 #undef ONEITERBUTTERFLY
1529 register vector signed int vsum;
1530 register vector signed short line0 = vec_add(temp0, temp1);
1531 register vector signed short line1 = vec_sub(temp0, temp1);
1532 register vector signed short line2 = vec_add(temp2, temp3);
1533 register vector signed short line3 = vec_sub(temp2, temp3);
1534 register vector signed short line4 = vec_add(temp4, temp5);
1535 register vector signed short line5 = vec_sub(temp4, temp5);
1536 register vector signed short line6 = vec_add(temp6, temp7);
1537 register vector signed short line7 = vec_sub(temp6, temp7);
1539 register vector signed short line0B = vec_add(line0, line2);
1540 register vector signed short line2B = vec_sub(line0, line2);
1541 register vector signed short line1B = vec_add(line1, line3);
1542 register vector signed short line3B = vec_sub(line1, line3);
1543 register vector signed short line4B = vec_add(line4, line6);
1544 register vector signed short line6B = vec_sub(line4, line6);
1545 register vector signed short line5B = vec_add(line5, line7);
1546 register vector signed short line7B = vec_sub(line5, line7);
1548 register vector signed short line0C = vec_add(line0B, line4B);
1549 register vector signed short line4C = vec_sub(line0B, line4B);
1550 register vector signed short line1C = vec_add(line1B, line5B);
1551 register vector signed short line5C = vec_sub(line1B, line5B);
1552 register vector signed short line2C = vec_add(line2B, line6B);
1553 register vector signed short line6C = vec_sub(line2B, line6B);
1554 register vector signed short line3C = vec_add(line3B, line7B);
1555 register vector signed short line7C = vec_sub(line3B, line7B);
1557 vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0));
1558 vsum = vec_sum4s(vec_abs(line1C), vsum);
1559 vsum = vec_sum4s(vec_abs(line2C), vsum);
1560 vsum = vec_sum4s(vec_abs(line3C), vsum);
1561 vsum = vec_sum4s(vec_abs(line4C), vsum);
1562 vsum = vec_sum4s(vec_abs(line5C), vsum);
1563 vsum = vec_sum4s(vec_abs(line6C), vsum);
1564 vsum = vec_sum4s(vec_abs(line7C), vsum);
1566 register vector signed short line0S = vec_add(temp0S, temp1S);
1567 register vector signed short line1S = vec_sub(temp0S, temp1S);
1568 register vector signed short line2S = vec_add(temp2S, temp3S);
1569 register vector signed short line3S = vec_sub(temp2S, temp3S);
1570 register vector signed short line4S = vec_add(temp4S, temp5S);
1571 register vector signed short line5S = vec_sub(temp4S, temp5S);
1572 register vector signed short line6S = vec_add(temp6S, temp7S);
1573 register vector signed short line7S = vec_sub(temp6S, temp7S);
1575 register vector signed short line0BS = vec_add(line0S, line2S);
1576 register vector signed short line2BS = vec_sub(line0S, line2S);
1577 register vector signed short line1BS = vec_add(line1S, line3S);
1578 register vector signed short line3BS = vec_sub(line1S, line3S);
1579 register vector signed short line4BS = vec_add(line4S, line6S);
1580 register vector signed short line6BS = vec_sub(line4S, line6S);
1581 register vector signed short line5BS = vec_add(line5S, line7S);
1582 register vector signed short line7BS = vec_sub(line5S, line7S);
1584 register vector signed short line0CS = vec_add(line0BS, line4BS);
1585 register vector signed short line4CS = vec_sub(line0BS, line4BS);
1586 register vector signed short line1CS = vec_add(line1BS, line5BS);
1587 register vector signed short line5CS = vec_sub(line1BS, line5BS);
1588 register vector signed short line2CS = vec_add(line2BS, line6BS);
1589 register vector signed short line6CS = vec_sub(line2BS, line6BS);
1590 register vector signed short line3CS = vec_add(line3BS, line7BS);
1591 register vector signed short line7CS = vec_sub(line3BS, line7BS);
1593 vsum = vec_sum4s(vec_abs(line0CS), vsum);
1594 vsum = vec_sum4s(vec_abs(line1CS), vsum);
1595 vsum = vec_sum4s(vec_abs(line2CS), vsum);
1596 vsum = vec_sum4s(vec_abs(line3CS), vsum);
1597 vsum = vec_sum4s(vec_abs(line4CS), vsum);
1598 vsum = vec_sum4s(vec_abs(line5CS), vsum);
1599 vsum = vec_sum4s(vec_abs(line6CS), vsum);
1600 vsum = vec_sum4s(vec_abs(line7CS), vsum);
1601 vsum = vec_sums(vsum, (vector signed int)vzero);
1602 vsum = vec_splat(vsum, 3);
1603 vec_ste(vsum, 0, &sum);
1608 int hadamard8_diff16_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
1609 POWERPC_PERF_DECLARE(altivec_hadamard8_diff16_num, 1);
1611 POWERPC_PERF_START_COUNT(altivec_hadamard8_diff16_num, 1);
1612 score = hadamard8_diff16x8_altivec(s, dst, src, stride, 8);
1616 score += hadamard8_diff16x8_altivec(s, dst, src, stride, 8);
1618 POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff16_num, 1);
1621 #endif //CONFIG_DARWIN
1623 int has_altivec(void)
1627 extern struct ExecIFace *IExec;
1629 IExec->GetCPUInfoTags(GCIT_VectorUnit, &result, TAG_DONE);
1630 if (result == VECTORTYPE_ALTIVEC) return 1;
1632 #else /* __AMIGAOS4__ */
1634 #ifdef CONFIG_DARWIN
1635 int sels[2] = {CTL_HW, HW_VECTORUNIT};
1637 size_t len = sizeof(has_vu);
1640 err = sysctl(sels, 2, &has_vu, &len, NULL, 0);
1642 if (err == 0) return (has_vu != 0);
1643 #else /* CONFIG_DARWIN */
1644 /* no Darwin, do it the brute-force way */
1645 /* this is borrowed from the libmpeg2 library */
1647 signal (SIGILL, sigill_handler);
1648 if (sigsetjmp (jmpbuf, 1)) {
1649 signal (SIGILL, SIG_DFL);
1653 asm volatile ("mtspr 256, %0\n\t"
1654 "vand %%v0, %%v0, %%v0"
1658 signal (SIGILL, SIG_DFL);
1662 #endif /* CONFIG_DARWIN */
1664 #endif /* __AMIGAOS4__ */
1667 /* next one assumes that ((line_size % 8) == 0) */
1668 void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
1670 POWERPC_PERF_DECLARE(altivec_avg_pixels8_xy2_num, 1);
1671 #ifdef ALTIVEC_USE_REFERENCE_C_CODE
1674 POWERPC_PERF_START_COUNT(altivec_avg_pixels8_xy2_num, 1);
1675 for (j = 0; j < 2; j++) {
1677 const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
1678 const uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
1679 uint32_t l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
1680 uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1682 pixels += line_size;
1683 for (i = 0; i < h; i += 2) {
1684 uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
1685 uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
1686 l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
1687 h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1688 *((uint32_t *) block) = rnd_avg32(*((uint32_t *) block), h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));
1689 pixels += line_size;
1691 a = (((const struct unaligned_32 *) (pixels))->l);
1692 b = (((const struct unaligned_32 *) (pixels + 1))->l);
1693 l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
1694 h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
1695 *((uint32_t *) block) = rnd_avg32(*((uint32_t *) block), h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));
1696 pixels += line_size;
1698 } pixels += 4 - line_size * (h + 1);
1699 block += 4 - line_size * h;
1701 POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_xy2_num, 1);
1702 #else /* ALTIVEC_USE_REFERENCE_C_CODE */
1704 register vector unsigned char
1707 register vector unsigned char
1708 blockv, temp1, temp2, blocktemp;
1709 register vector unsigned short
1710 pixelssum1, pixelssum2, temp3;
1711 register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
1712 register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
1714 temp1 = vec_ld(0, pixels);
1715 temp2 = vec_ld(16, pixels);
1716 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
1717 if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
1723 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
1725 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1726 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1727 pixelssum1 = vec_add((vector unsigned short)pixelsv1,
1728 (vector unsigned short)pixelsv2);
1729 pixelssum1 = vec_add(pixelssum1, vctwo);
1731 POWERPC_PERF_START_COUNT(altivec_avg_pixels8_xy2_num, 1);
1732 for (i = 0; i < h ; i++) {
1733 int rightside = ((unsigned long)block & 0x0000000F);
1734 blockv = vec_ld(0, block);
1736 temp1 = vec_ld(line_size, pixels);
1737 temp2 = vec_ld(line_size + 16, pixels);
1738 pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
1739 if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
1745 pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
1748 pixelsv1 = vec_mergeh(vczero, pixelsv1);
1749 pixelsv2 = vec_mergeh(vczero, pixelsv2);
1750 pixelssum2 = vec_add((vector unsigned short)pixelsv1,
1751 (vector unsigned short)pixelsv2);
1752 temp3 = vec_add(pixelssum1, pixelssum2);
1753 temp3 = vec_sra(temp3, vctwo);
1754 pixelssum1 = vec_add(pixelssum2, vctwo);
1755 pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
1759 blocktemp = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
1763 blocktemp = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
1766 blockv = vec_avg(blocktemp, blockv);
1767 vec_st(blockv, 0, block);
1770 pixels += line_size;
1773 POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_xy2_num, 1);
1774 #endif /* ALTIVEC_USE_REFERENCE_C_CODE */