844 lines
27 KiB
C
844 lines
27 KiB
C
/*
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* Copyright (c) 2002 Brian Foley
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* Copyright (c) 2002 Dieter Shirley
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "../dsputil.h"
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#include "dsputil_altivec.h"
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#if CONFIG_DARWIN
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#include <sys/sysctl.h>
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#endif
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#ifdef ALTIVEC_TBL_PERFORMANCE_REPORT
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unsigned long long perfdata[altivec_perf_total][altivec_data_total];
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/* list below must match enum in dsputil_altivec.h */
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static unsigned char* perfname[] = {
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"fft_calc",
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"gmc1",
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"dct_unquantize_h263",
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"idct_add",
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"idct_put",
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"put_pixels_clamped",
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"put_pixels16",
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"avg_pixels16"
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};
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#include <stdio.h>
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#endif
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int pix_abs16x16_x2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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const vector unsigned char zero = (const vector unsigned char)(0);
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vector unsigned char *tv;
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vector unsigned char pix1v, pix2v, pix2iv, avgv, t5;
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vector unsigned int sad;
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vector signed int sumdiffs;
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s = 0;
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sad = (vector unsigned int)(0);
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for(i=0;i<16;i++) {
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/*
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Read unaligned pixels into our vectors. The vectors are as follows:
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pix1v: pix1[0]-pix1[15]
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pix2v: pix2[0]-pix2[15] pix2iv: pix2[1]-pix2[16]
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*/
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tv = (vector unsigned char *) pix1;
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pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1));
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tv = (vector unsigned char *) &pix2[0];
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pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0]));
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tv = (vector unsigned char *) &pix2[1];
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pix2iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[1]));
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/* Calculate the average vector */
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avgv = vec_avg(pix2v, pix2iv);
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/* Calculate a sum of abs differences vector */
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t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv));
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/* Add each 4 pixel group together and put 4 results into sad */
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sad = vec_sum4s(t5, sad);
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pix1 += line_size;
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pix2 += line_size;
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}
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/* Sum up the four partial sums, and put the result into s */
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
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sumdiffs = vec_splat(sumdiffs, 3);
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vec_ste(sumdiffs, 0, &s);
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return s;
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}
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int pix_abs16x16_y2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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const vector unsigned char zero = (const vector unsigned char)(0);
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vector unsigned char *tv;
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vector unsigned char pix1v, pix2v, pix3v, avgv, t5;
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vector unsigned int sad;
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vector signed int sumdiffs;
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uint8_t *pix3 = pix2 + line_size;
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s = 0;
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sad = (vector unsigned int)(0);
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/*
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Due to the fact that pix3 = pix2 + line_size, the pix3 of one
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iteration becomes pix2 in the next iteration. We can use this
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fact to avoid a potentially expensive unaligned read, each
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time around the loop.
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Read unaligned pixels into our vectors. The vectors are as follows:
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pix2v: pix2[0]-pix2[15]
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Split the pixel vectors into shorts
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*/
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tv = (vector unsigned char *) &pix2[0];
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pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0]));
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for(i=0;i<16;i++) {
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/*
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Read unaligned pixels into our vectors. The vectors are as follows:
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pix1v: pix1[0]-pix1[15]
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pix3v: pix3[0]-pix3[15]
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*/
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tv = (vector unsigned char *) pix1;
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pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1));
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tv = (vector unsigned char *) &pix3[0];
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pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0]));
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/* Calculate the average vector */
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avgv = vec_avg(pix2v, pix3v);
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/* Calculate a sum of abs differences vector */
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t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv));
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/* Add each 4 pixel group together and put 4 results into sad */
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sad = vec_sum4s(t5, sad);
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pix1 += line_size;
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pix2v = pix3v;
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pix3 += line_size;
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}
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/* Sum up the four partial sums, and put the result into s */
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
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sumdiffs = vec_splat(sumdiffs, 3);
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vec_ste(sumdiffs, 0, &s);
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return s;
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}
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int pix_abs16x16_xy2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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uint8_t *pix3 = pix2 + line_size;
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const vector unsigned char zero = (const vector unsigned char)(0);
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const vector unsigned short two = (const vector unsigned short)(2);
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vector unsigned char *tv, avgv, t5;
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vector unsigned char pix1v, pix2v, pix3v, pix2iv, pix3iv;
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vector unsigned short pix2lv, pix2hv, pix2ilv, pix2ihv;
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vector unsigned short pix3lv, pix3hv, pix3ilv, pix3ihv;
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vector unsigned short avghv, avglv;
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vector unsigned short t1, t2, t3, t4;
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vector unsigned int sad;
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vector signed int sumdiffs;
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sad = (vector unsigned int)(0);
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s = 0;
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/*
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Due to the fact that pix3 = pix2 + line_size, the pix3 of one
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iteration becomes pix2 in the next iteration. We can use this
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fact to avoid a potentially expensive unaligned read, as well
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as some splitting, and vector addition each time around the loop.
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Read unaligned pixels into our vectors. The vectors are as follows:
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pix2v: pix2[0]-pix2[15] pix2iv: pix2[1]-pix2[16]
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Split the pixel vectors into shorts
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*/
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tv = (vector unsigned char *) &pix2[0];
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pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0]));
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tv = (vector unsigned char *) &pix2[1];
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pix2iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[1]));
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pix2hv = (vector unsigned short) vec_mergeh(zero, pix2v);
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pix2lv = (vector unsigned short) vec_mergel(zero, pix2v);
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pix2ihv = (vector unsigned short) vec_mergeh(zero, pix2iv);
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pix2ilv = (vector unsigned short) vec_mergel(zero, pix2iv);
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t1 = vec_add(pix2hv, pix2ihv);
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t2 = vec_add(pix2lv, pix2ilv);
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for(i=0;i<16;i++) {
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/*
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Read unaligned pixels into our vectors. The vectors are as follows:
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pix1v: pix1[0]-pix1[15]
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pix3v: pix3[0]-pix3[15] pix3iv: pix3[1]-pix3[16]
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*/
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tv = (vector unsigned char *) pix1;
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pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1));
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tv = (vector unsigned char *) &pix3[0];
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pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0]));
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tv = (vector unsigned char *) &pix3[1];
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pix3iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[1]));
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/*
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Note that Altivec does have vec_avg, but this works on vector pairs
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and rounds up. We could do avg(avg(a,b),avg(c,d)), but the rounding
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would mean that, for example, avg(3,0,0,1) = 2, when it should be 1.
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Instead, we have to split the pixel vectors into vectors of shorts,
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and do the averaging by hand.
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*/
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/* Split the pixel vectors into shorts */
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pix3hv = (vector unsigned short) vec_mergeh(zero, pix3v);
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pix3lv = (vector unsigned short) vec_mergel(zero, pix3v);
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pix3ihv = (vector unsigned short) vec_mergeh(zero, pix3iv);
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pix3ilv = (vector unsigned short) vec_mergel(zero, pix3iv);
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/* Do the averaging on them */
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t3 = vec_add(pix3hv, pix3ihv);
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t4 = vec_add(pix3lv, pix3ilv);
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avghv = vec_sr(vec_add(vec_add(t1, t3), two), two);
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avglv = vec_sr(vec_add(vec_add(t2, t4), two), two);
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/* Pack the shorts back into a result */
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avgv = vec_pack(avghv, avglv);
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/* Calculate a sum of abs differences vector */
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t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv));
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/* Add each 4 pixel group together and put 4 results into sad */
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sad = vec_sum4s(t5, sad);
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pix1 += line_size;
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pix3 += line_size;
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/* Transfer the calculated values for pix3 into pix2 */
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t1 = t3;
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t2 = t4;
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}
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/* Sum up the four partial sums, and put the result into s */
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
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sumdiffs = vec_splat(sumdiffs, 3);
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vec_ste(sumdiffs, 0, &s);
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return s;
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}
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int pix_abs16x16_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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const vector unsigned int zero = (const vector unsigned int)(0);
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vector unsigned char perm1, perm2, *pix1v, *pix2v;
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vector unsigned char t1, t2, t3,t4, t5;
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vector unsigned int sad;
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vector signed int sumdiffs;
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sad = (vector unsigned int) (0);
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for(i=0;i<16;i++) {
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/* Read potentially unaligned pixels into t1 and t2 */
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perm1 = vec_lvsl(0, pix1);
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pix1v = (vector unsigned char *) pix1;
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perm2 = vec_lvsl(0, pix2);
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pix2v = (vector unsigned char *) pix2;
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t1 = vec_perm(pix1v[0], pix1v[1], perm1);
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t2 = vec_perm(pix2v[0], pix2v[1], perm2);
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/* Calculate a sum of abs differences vector */
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t3 = vec_max(t1, t2);
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t4 = vec_min(t1, t2);
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t5 = vec_sub(t3, t4);
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/* Add each 4 pixel group together and put 4 results into sad */
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sad = vec_sum4s(t5, sad);
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pix1 += line_size;
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pix2 += line_size;
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}
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/* Sum up the four partial sums, and put the result into s */
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
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sumdiffs = vec_splat(sumdiffs, 3);
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vec_ste(sumdiffs, 0, &s);
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return s;
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}
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int pix_abs8x8_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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const vector unsigned int zero = (const vector unsigned int)(0);
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vector unsigned char perm1, perm2, permclear, *pix1v, *pix2v;
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vector unsigned char t1, t2, t3,t4, t5;
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vector unsigned int sad;
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vector signed int sumdiffs;
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sad = (vector unsigned int)(0);
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permclear = (vector unsigned char) (255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0);
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for(i=0;i<8;i++) {
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/* Read potentially unaligned pixels into t1 and t2
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Since we're reading 16 pixels, and actually only want 8,
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mask out the last 8 pixels. The 0s don't change the sum. */
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perm1 = vec_lvsl(0, pix1);
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pix1v = (vector unsigned char *) pix1;
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perm2 = vec_lvsl(0, pix2);
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pix2v = (vector unsigned char *) pix2;
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t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear);
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t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear);
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/* Calculate a sum of abs differences vector */
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t3 = vec_max(t1, t2);
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t4 = vec_min(t1, t2);
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t5 = vec_sub(t3, t4);
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/* Add each 4 pixel group together and put 4 results into sad */
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sad = vec_sum4s(t5, sad);
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pix1 += line_size;
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pix2 += line_size;
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}
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/* Sum up the four partial sums, and put the result into s */
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
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sumdiffs = vec_splat(sumdiffs, 3);
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vec_ste(sumdiffs, 0, &s);
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return s;
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}
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int pix_norm1_altivec(uint8_t *pix, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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const vector unsigned int zero = (const vector unsigned int)(0);
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vector unsigned char *tv;
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vector unsigned char pixv;
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vector unsigned int sv;
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vector signed int sum;
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sv = (vector unsigned int)(0);
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s = 0;
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for (i = 0; i < 16; i++) {
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/* Read in the potentially unaligned pixels */
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tv = (vector unsigned char *) pix;
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pixv = vec_perm(tv[0], tv[1], vec_lvsl(0, pix));
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/* Square the values, and add them to our sum */
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sv = vec_msum(pixv, pixv, sv);
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pix += line_size;
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}
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/* Sum up the four partial sums, and put the result into s */
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sum = vec_sums((vector signed int) sv, (vector signed int) zero);
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sum = vec_splat(sum, 3);
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vec_ste(sum, 0, &s);
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return s;
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}
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/**
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* Sum of Squared Errors for a 8x8 block.
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* AltiVec-enhanced.
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* It's the pix_abs8x8_altivec code above w/ squaring added.
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*/
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int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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const vector unsigned int zero = (const vector unsigned int)(0);
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vector unsigned char perm1, perm2, permclear, *pix1v, *pix2v;
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vector unsigned char t1, t2, t3,t4, t5;
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vector unsigned int sum;
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vector signed int sumsqr;
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sum = (vector unsigned int)(0);
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permclear = (vector unsigned char)(0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
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for(i=0;i<8;i++) {
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/* Read potentially unaligned pixels into t1 and t2
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Since we're reading 16 pixels, and actually only want 8,
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mask out the last 8 pixels. The 0s don't change the sum. */
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perm1 = vec_lvsl(0, pix1);
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pix1v = (vector unsigned char *) pix1;
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perm2 = vec_lvsl(0, pix2);
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pix2v = (vector unsigned char *) pix2;
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t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear);
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t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear);
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/*
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Since we want to use unsigned chars, we can take advantage
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of the fact that abs(a-b)^2 = (a-b)^2.
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*/
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/* Calculate abs differences vector */
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t3 = vec_max(t1, t2);
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t4 = vec_min(t1, t2);
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t5 = vec_sub(t3, t4);
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/* Square the values and add them to our sum */
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sum = vec_msum(t5, t5, sum);
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pix1 += line_size;
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pix2 += line_size;
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}
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/* Sum up the four partial sums, and put the result into s */
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sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero);
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sumsqr = vec_splat(sumsqr, 3);
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vec_ste(sumsqr, 0, &s);
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return s;
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}
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/**
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* Sum of Squared Errors for a 16x16 block.
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* AltiVec-enhanced.
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* It's the pix_abs16x16_altivec code above w/ squaring added.
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*/
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int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size)
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{
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int i;
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int s __attribute__((aligned(16)));
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const vector unsigned int zero = (const vector unsigned int)(0);
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vector unsigned char perm1, perm2, *pix1v, *pix2v;
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vector unsigned char t1, t2, t3,t4, t5;
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vector unsigned int sum;
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vector signed int sumsqr;
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sum = (vector unsigned int)(0);
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for(i=0;i<16;i++) {
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/* Read potentially unaligned pixels into t1 and t2 */
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perm1 = vec_lvsl(0, pix1);
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pix1v = (vector unsigned char *) pix1;
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perm2 = vec_lvsl(0, pix2);
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pix2v = (vector unsigned char *) pix2;
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t1 = vec_perm(pix1v[0], pix1v[1], perm1);
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t2 = vec_perm(pix2v[0], pix2v[1], perm2);
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/*
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Since we want to use unsigned chars, we can take advantage
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of the fact that abs(a-b)^2 = (a-b)^2.
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*/
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/* Calculate abs differences vector */
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t3 = vec_max(t1, t2);
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t4 = vec_min(t1, t2);
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t5 = vec_sub(t3, t4);
|
|
|
|
/* Square the values and add them to our sum */
|
|
sum = vec_msum(t5, t5, sum);
|
|
|
|
pix1 += line_size;
|
|
pix2 += line_size;
|
|
}
|
|
|
|
/* Sum up the four partial sums, and put the result into s */
|
|
sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero);
|
|
sumsqr = vec_splat(sumsqr, 3);
|
|
vec_ste(sumsqr, 0, &s);
|
|
|
|
return s;
|
|
}
|
|
|
|
int pix_sum_altivec(UINT8 * pix, int line_size)
|
|
{
|
|
const vector unsigned int zero = (const vector unsigned int)(0);
|
|
vector unsigned char perm, *pixv;
|
|
vector unsigned char t1;
|
|
vector unsigned int sad;
|
|
vector signed int sumdiffs;
|
|
|
|
int i;
|
|
int s __attribute__((aligned(16)));
|
|
|
|
sad = (vector unsigned int) (0);
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
/* Read the potentially unaligned 16 pixels into t1 */
|
|
perm = vec_lvsl(0, pix);
|
|
pixv = (vector unsigned char *) pix;
|
|
t1 = vec_perm(pixv[0], pixv[1], perm);
|
|
|
|
/* Add each 4 pixel group together and put 4 results into sad */
|
|
sad = vec_sum4s(t1, sad);
|
|
|
|
pix += line_size;
|
|
}
|
|
|
|
/* Sum up the four partial sums, and put the result into s */
|
|
sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
|
|
sumdiffs = vec_splat(sumdiffs, 3);
|
|
vec_ste(sumdiffs, 0, &s);
|
|
|
|
return s;
|
|
}
|
|
|
|
void get_pixels_altivec(DCTELEM *restrict block, const UINT8 *pixels, int line_size)
|
|
{
|
|
int i;
|
|
vector unsigned char perm, bytes, *pixv;
|
|
const vector unsigned char zero = (const vector unsigned char) (0);
|
|
vector signed short shorts;
|
|
|
|
for(i=0;i<8;i++)
|
|
{
|
|
// Read potentially unaligned pixels.
|
|
// We're reading 16 pixels, and actually only want 8,
|
|
// but we simply ignore the extras.
|
|
perm = vec_lvsl(0, pixels);
|
|
pixv = (vector unsigned char *) pixels;
|
|
bytes = vec_perm(pixv[0], pixv[1], perm);
|
|
|
|
// convert the bytes into shorts
|
|
shorts = (vector signed short)vec_mergeh(zero, bytes);
|
|
|
|
// save the data to the block, we assume the block is 16-byte aligned
|
|
vec_st(shorts, i*16, (vector signed short*)block);
|
|
|
|
pixels += line_size;
|
|
}
|
|
}
|
|
|
|
void diff_pixels_altivec(DCTELEM *restrict block, const UINT8 *s1,
|
|
const UINT8 *s2, int stride)
|
|
{
|
|
int i;
|
|
vector unsigned char perm, bytes, *pixv;
|
|
const vector unsigned char zero = (const vector unsigned char) (0);
|
|
vector signed short shorts1, shorts2;
|
|
|
|
for(i=0;i<4;i++)
|
|
{
|
|
// Read potentially unaligned pixels
|
|
// We're reading 16 pixels, and actually only want 8,
|
|
// but we simply ignore the extras.
|
|
perm = vec_lvsl(0, s1);
|
|
pixv = (vector unsigned char *) s1;
|
|
bytes = vec_perm(pixv[0], pixv[1], perm);
|
|
|
|
// convert the bytes into shorts
|
|
shorts1 = (vector signed short)vec_mergeh(zero, bytes);
|
|
|
|
// Do the same for the second block of pixels
|
|
perm = vec_lvsl(0, s2);
|
|
pixv = (vector unsigned char *) s2;
|
|
bytes = vec_perm(pixv[0], pixv[1], perm);
|
|
|
|
// convert the bytes into shorts
|
|
shorts2 = (vector signed short)vec_mergeh(zero, bytes);
|
|
|
|
// Do the subtraction
|
|
shorts1 = vec_sub(shorts1, shorts2);
|
|
|
|
// save the data to the block, we assume the block is 16-byte aligned
|
|
vec_st(shorts1, 0, (vector signed short*)block);
|
|
|
|
s1 += stride;
|
|
s2 += stride;
|
|
block += 8;
|
|
|
|
|
|
// The code below is a copy of the code above... This is a manual
|
|
// unroll.
|
|
|
|
// Read potentially unaligned pixels
|
|
// We're reading 16 pixels, and actually only want 8,
|
|
// but we simply ignore the extras.
|
|
perm = vec_lvsl(0, s1);
|
|
pixv = (vector unsigned char *) s1;
|
|
bytes = vec_perm(pixv[0], pixv[1], perm);
|
|
|
|
// convert the bytes into shorts
|
|
shorts1 = (vector signed short)vec_mergeh(zero, bytes);
|
|
|
|
// Do the same for the second block of pixels
|
|
perm = vec_lvsl(0, s2);
|
|
pixv = (vector unsigned char *) s2;
|
|
bytes = vec_perm(pixv[0], pixv[1], perm);
|
|
|
|
// convert the bytes into shorts
|
|
shorts2 = (vector signed short)vec_mergeh(zero, bytes);
|
|
|
|
// Do the subtraction
|
|
shorts1 = vec_sub(shorts1, shorts2);
|
|
|
|
// save the data to the block, we assume the block is 16-byte aligned
|
|
vec_st(shorts1, 0, (vector signed short*)block);
|
|
|
|
s1 += stride;
|
|
s2 += stride;
|
|
block += 8;
|
|
}
|
|
}
|
|
|
|
int sad16x16_altivec(void *s, uint8_t *a, uint8_t *b, int stride) {
|
|
return pix_abs16x16_altivec(a,b,stride);
|
|
}
|
|
|
|
int sad8x8_altivec(void *s, uint8_t *a, uint8_t *b, int stride) {
|
|
return pix_abs8x8_altivec(a,b,stride);
|
|
}
|
|
|
|
void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w) {
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int i;
|
|
for(i=0; i+7<w; i++){
|
|
dst[i+0] += src[i+0];
|
|
dst[i+1] += src[i+1];
|
|
dst[i+2] += src[i+2];
|
|
dst[i+3] += src[i+3];
|
|
dst[i+4] += src[i+4];
|
|
dst[i+5] += src[i+5];
|
|
dst[i+6] += src[i+6];
|
|
dst[i+7] += src[i+7];
|
|
}
|
|
for(; i<w; i++)
|
|
dst[i+0] += src[i+0];
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register int i;
|
|
register vector unsigned char vdst, vsrc;
|
|
|
|
/* dst and src are 16 bytes-aligned (guaranteed) */
|
|
for(i = 0 ; (i + 15) < w ; i++)
|
|
{
|
|
vdst = vec_ld(i << 4, (unsigned char*)dst);
|
|
vsrc = vec_ld(i << 4, (unsigned char*)src);
|
|
vdst = vec_add(vsrc, vdst);
|
|
vec_st(vdst, i << 4, (unsigned char*)dst);
|
|
}
|
|
/* if w is not a multiple of 16 */
|
|
for (; (i < w) ; i++)
|
|
{
|
|
dst[i] = src[i];
|
|
}
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
extern UINT8 cropTbl[];
|
|
void put_pixels_clamped_altivec(const DCTELEM *block, UINT8 *restrict pixels,
|
|
int line_size)
|
|
{
|
|
ALTIVEC_TBL_DECLARE(altivec_put_pixels_clamped_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int i;
|
|
UINT8 *cm = cropTbl + MAX_NEG_CROP;
|
|
|
|
ALTIVEC_TBL_START_COUNT(altivec_put_pixels_clamped_num, 1);
|
|
|
|
/* read the pixels */
|
|
for(i=0;i<8;i++) {
|
|
pixels[0] = cm[block[0]];
|
|
pixels[1] = cm[block[1]];
|
|
pixels[2] = cm[block[2]];
|
|
pixels[3] = cm[block[3]];
|
|
pixels[4] = cm[block[4]];
|
|
pixels[5] = cm[block[5]];
|
|
pixels[6] = cm[block[6]];
|
|
pixels[7] = cm[block[7]];
|
|
|
|
pixels += line_size;
|
|
block += 8;
|
|
}
|
|
|
|
ALTIVEC_TBL_STOP_COUNT(altivec_put_pixels_clamped_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register const vector short vczero = (const vector short)(0);
|
|
register vector short
|
|
blockv0, blockv1, blockv2, blockv3,
|
|
blockv4, blockv5, blockv6, blockv7;
|
|
register vector unsigned char
|
|
pixelsv0, pixelsv1, pixelsv2, pixelsv3, pixelsv4,
|
|
pixelsv0old, pixelsv4old;
|
|
|
|
ALTIVEC_TBL_START_COUNT(altivec_put_pixels_clamped_num, 1);
|
|
|
|
blockv0 = vec_ld(0, block);
|
|
blockv1 = vec_ld(16, block);
|
|
blockv2 = vec_ld(32, block);
|
|
blockv3 = vec_ld(48, block);
|
|
blockv4 = vec_ld(64, block);
|
|
blockv5 = vec_ld(80, block);
|
|
blockv6 = vec_ld(96, block);
|
|
blockv7 = vec_ld(112, block);
|
|
if (((unsigned long)pixels) & 0x0000000F)
|
|
{
|
|
pixelsv0old = vec_ld(-8, pixels);
|
|
pixelsv4old = vec_ld(56, pixels);
|
|
pixelsv0 = vec_packsu(vczero, blockv0);
|
|
pixelsv1 = vec_packsu(blockv1, blockv2);
|
|
pixelsv2 = vec_packsu(blockv3, blockv4);
|
|
pixelsv3 = vec_packsu(blockv5, blockv6);
|
|
pixelsv4 = vec_packsu(blockv5, vczero);
|
|
pixelsv0 = vec_perm(pixelsv0old, pixelsv0, vcprm(0, 1, s2, s3));
|
|
pixelsv4 = vec_perm(pixelsv4, pixelsv4old, vcprm(0, 1, s2, s3));
|
|
vec_st(pixelsv0, -8, pixels);
|
|
vec_st(pixelsv1, 8, pixels);
|
|
vec_st(pixelsv2, 24, pixels);
|
|
vec_st(pixelsv3, 40, pixels);
|
|
vec_st(pixelsv4, 56, pixels);
|
|
}
|
|
else
|
|
{
|
|
pixelsv0 = vec_packsu(blockv0, blockv1);
|
|
pixelsv1 = vec_packsu(blockv2, blockv3);
|
|
pixelsv2 = vec_packsu(blockv4, blockv5);
|
|
pixelsv3 = vec_packsu(blockv6, blockv7);
|
|
vec_st(pixelsv0, 0, pixels);
|
|
vec_st(pixelsv1, 16, pixels);
|
|
vec_st(pixelsv2, 32, pixels);
|
|
vec_st(pixelsv3, 48, pixels);
|
|
}
|
|
|
|
ALTIVEC_TBL_STOP_COUNT(altivec_put_pixels_clamped_num, 1);
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
void put_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
ALTIVEC_TBL_DECLARE(altivec_put_pixels16_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int i;
|
|
|
|
ALTIVEC_TBL_START_COUNT(altivec_put_pixels16_num, 1);
|
|
|
|
for(i=0; i<h; i++) {
|
|
*((uint32_t*)(block )) = (((const struct unaligned_32 *) (pixels))->l);
|
|
*((uint32_t*)(block+4)) = (((const struct unaligned_32 *) (pixels+4))->l);
|
|
*((uint32_t*)(block+8)) = (((const struct unaligned_32 *) (pixels+8))->l);
|
|
*((uint32_t*)(block+12)) = (((const struct unaligned_32 *) (pixels+12))->l);
|
|
pixels+=line_size;
|
|
block +=line_size;
|
|
}
|
|
|
|
ALTIVEC_TBL_STOP_COUNT(altivec_put_pixels16_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
|
|
register vector unsigned char perm = vec_lvsl(0, pixels);
|
|
register vector unsigned char pixelsv1, pixelsv2;
|
|
int i;
|
|
|
|
ALTIVEC_TBL_START_COUNT(altivec_put_pixels16_num, 1);
|
|
|
|
for(i=0; i<h; i++) {
|
|
pixelsv1 = vec_ld(0, (unsigned char*)pixels);
|
|
pixelsv2 = vec_ld(16, (unsigned char*)pixels);
|
|
vec_st(vec_perm(pixelsv1, pixelsv2, perm), 0, (unsigned char*)block);
|
|
pixels+=line_size;
|
|
block +=line_size;
|
|
}
|
|
|
|
ALTIVEC_TBL_STOP_COUNT(altivec_put_pixels16_num, 1);
|
|
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
#define op_avg(a,b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) )
|
|
void avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
ALTIVEC_TBL_DECLARE(altivec_avg_pixels16_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int i;
|
|
|
|
ALTIVEC_TBL_START_COUNT(altivec_avg_pixels16_num, 1);
|
|
|
|
for(i=0; i<h; i++) {
|
|
op_avg(*((uint32_t*)(block)),(((const struct unaligned_32 *)(pixels))->l));
|
|
op_avg(*((uint32_t*)(block+4)),(((const struct unaligned_32 *)(pixels+4))->l));
|
|
op_avg(*((uint32_t*)(block+8)),(((const struct unaligned_32 *)(pixels+8))->l));
|
|
op_avg(*((uint32_t*)(block+12)),(((const struct unaligned_32 *)(pixels+12))->l));
|
|
pixels+=line_size;
|
|
block +=line_size;
|
|
}
|
|
|
|
ALTIVEC_TBL_STOP_COUNT(altivec_avg_pixels16_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
|
|
register vector unsigned char perm = vec_lvsl(0, pixels);
|
|
register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
|
|
int i;
|
|
|
|
ALTIVEC_TBL_START_COUNT(altivec_avg_pixels16_num, 1);
|
|
|
|
for(i=0; i<h; i++) {
|
|
pixelsv1 = vec_ld(0, (unsigned char*)pixels);
|
|
pixelsv2 = vec_ld(16, (unsigned char*)pixels);
|
|
blockv = vec_ld(0, block);
|
|
pixelsv = vec_perm(pixelsv1, pixelsv2, perm);
|
|
blockv = vec_avg(blockv,pixelsv);
|
|
vec_st(blockv, 0, (unsigned char*)block);
|
|
pixels+=line_size;
|
|
block +=line_size;
|
|
}
|
|
|
|
ALTIVEC_TBL_STOP_COUNT(altivec_avg_pixels16_num, 1);
|
|
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
int has_altivec(void)
|
|
{
|
|
#if CONFIG_DARWIN
|
|
int sels[2] = {CTL_HW, HW_VECTORUNIT};
|
|
int has_vu = 0;
|
|
size_t len = sizeof(has_vu);
|
|
int err;
|
|
|
|
err = sysctl(sels, 2, &has_vu, &len, NULL, 0);
|
|
|
|
if (err == 0) return (has_vu != 0);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#ifdef ALTIVEC_TBL_PERFORMANCE_REPORT
|
|
void altivec_display_perf_report(void)
|
|
{
|
|
int i;
|
|
fprintf(stderr, "AltiVec performance report\n Values are from the Time Base register, and represent 4 bus cycles.\n");
|
|
for(i = 0 ; i < altivec_perf_total ; i++)
|
|
{
|
|
if (perfdata[i][altivec_data_num] != (unsigned long long)0)
|
|
fprintf(stderr, " Function \"%s\":\n\tmin: %llu\n\tmax: %llu\n\tavg: %1.2lf (%llu)\n",
|
|
perfname[i],
|
|
perfdata[i][altivec_data_min],
|
|
perfdata[i][altivec_data_max],
|
|
(double)perfdata[i][altivec_data_sum] /
|
|
(double)perfdata[i][altivec_data_num],
|
|
perfdata[i][altivec_data_num]);
|
|
}
|
|
}
|
|
#endif /* ALTIVEC_TBL_PERFORMANCE_REPORT */
|