1760 lines
64 KiB
C
1760 lines
64 KiB
C
/*
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* Copyright (c) 2002 Brian Foley
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* Copyright (c) 2002 Dieter Shirley
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* Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
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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 "gcc_fixes.h"
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#include "dsputil_altivec.h"
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#ifdef CONFIG_DARWIN
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#include <sys/sysctl.h>
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#else /* CONFIG_DARWIN */
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#include <signal.h>
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#include <setjmp.h>
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static sigjmp_buf jmpbuf;
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static volatile sig_atomic_t canjump = 0;
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static void sigill_handler (int sig)
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{
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if (!canjump) {
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signal (sig, SIG_DFL);
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raise (sig);
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}
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canjump = 0;
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siglongjmp (jmpbuf, 1);
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}
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#endif /* CONFIG_DARWIN */
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int sad16_x2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
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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)vec_splat_u8(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)vec_splat_u32(0);
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for(i=0;i<h;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 sad16_y2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
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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)vec_splat_u8(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)vec_splat_u32(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<h;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 sad16_xy2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
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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)vec_splat_u8(0);
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const_vector unsigned short two = (const_vector unsigned short)vec_splat_u16(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)vec_splat_u32(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<h;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 sad16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
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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)vec_splat_u32(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)vec_splat_u32(0);
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for(i=0;i<h;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 sad8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
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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)vec_splat_u32(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)vec_splat_u32(0);
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permclear = (vector unsigned char)AVV(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0);
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for(i=0;i<h;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)vec_splat_u32(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)vec_splat_u32(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 sad8_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, int h)
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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)vec_splat_u32(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)vec_splat_u32(0);
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permclear = (vector unsigned char)AVV(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0);
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for(i=0;i<h;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 sad16_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, int h)
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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)vec_splat_u32(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)vec_splat_u32(0);
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for(i=0;i<h;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;
|
|
t1 = vec_perm(pix1v[0], pix1v[1], perm1);
|
|
t2 = vec_perm(pix2v[0], pix2v[1], perm2);
|
|
|
|
/*
|
|
Since we want to use unsigned chars, we can take advantage
|
|
of the fact that abs(a-b)^2 = (a-b)^2.
|
|
*/
|
|
|
|
/* Calculate abs differences vector */
|
|
t3 = vec_max(t1, t2);
|
|
t4 = vec_min(t1, t2);
|
|
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_t * pix, int line_size)
|
|
{
|
|
const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(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)vec_splat_u32(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_t *pixels, int line_size)
|
|
{
|
|
int i;
|
|
vector unsigned char perm, bytes, *pixv;
|
|
const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(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_t *s1,
|
|
const uint8_t *s2, int stride)
|
|
{
|
|
int i;
|
|
vector unsigned char perm, bytes, *pixv;
|
|
const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(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;
|
|
}
|
|
}
|
|
|
|
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 */
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 16) == 0) */
|
|
void put_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_put_pixels16_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int i;
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_put_pixels16_num, 1);
|
|
|
|
for(i=0; i<h; i++) {
|
|
*((uint32_t*)(block)) = LD32(pixels);
|
|
*((uint32_t*)(block+4)) = LD32(pixels+4);
|
|
*((uint32_t*)(block+8)) = LD32(pixels+8);
|
|
*((uint32_t*)(block+12)) = LD32(pixels+12);
|
|
pixels+=line_size;
|
|
block +=line_size;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register vector unsigned char pixelsv1, pixelsv2;
|
|
register vector unsigned char pixelsv1B, pixelsv2B;
|
|
register vector unsigned char pixelsv1C, pixelsv2C;
|
|
register vector unsigned char pixelsv1D, pixelsv2D;
|
|
|
|
register vector unsigned char perm = vec_lvsl(0, pixels);
|
|
int i;
|
|
register int line_size_2 = line_size << 1;
|
|
register int line_size_3 = line_size + line_size_2;
|
|
register int line_size_4 = line_size << 2;
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_put_pixels16_num, 1);
|
|
// hand-unrolling the loop by 4 gains about 15%
|
|
// mininum execution time goes from 74 to 60 cycles
|
|
// it's faster than -funroll-loops, but using
|
|
// -funroll-loops w/ this is bad - 74 cycles again.
|
|
// all this is on a 7450, tuning for the 7450
|
|
#if 0
|
|
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;
|
|
}
|
|
#else
|
|
for(i=0; i<h; i+=4) {
|
|
pixelsv1 = vec_ld(0, (unsigned char*)pixels);
|
|
pixelsv2 = vec_ld(16, (unsigned char*)pixels);
|
|
pixelsv1B = vec_ld(line_size, (unsigned char*)pixels);
|
|
pixelsv2B = vec_ld(16 + line_size, (unsigned char*)pixels);
|
|
pixelsv1C = vec_ld(line_size_2, (unsigned char*)pixels);
|
|
pixelsv2C = vec_ld(16 + line_size_2, (unsigned char*)pixels);
|
|
pixelsv1D = vec_ld(line_size_3, (unsigned char*)pixels);
|
|
pixelsv2D = vec_ld(16 + line_size_3, (unsigned char*)pixels);
|
|
vec_st(vec_perm(pixelsv1, pixelsv2, perm),
|
|
0, (unsigned char*)block);
|
|
vec_st(vec_perm(pixelsv1B, pixelsv2B, perm),
|
|
line_size, (unsigned char*)block);
|
|
vec_st(vec_perm(pixelsv1C, pixelsv2C, perm),
|
|
line_size_2, (unsigned char*)block);
|
|
vec_st(vec_perm(pixelsv1D, pixelsv2D, perm),
|
|
line_size_3, (unsigned char*)block);
|
|
pixels+=line_size_4;
|
|
block +=line_size_4;
|
|
}
|
|
#endif
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_num, 1);
|
|
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 16) == 0) */
|
|
#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)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_avg_pixels16_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int i;
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_avg_pixels16_num, 1);
|
|
|
|
for(i=0; i<h; i++) {
|
|
op_avg(*((uint32_t*)(block)),LD32(pixels));
|
|
op_avg(*((uint32_t*)(block+4)),LD32(pixels+4));
|
|
op_avg(*((uint32_t*)(block+8)),LD32(pixels+8));
|
|
op_avg(*((uint32_t*)(block+12)),LD32(pixels+12));
|
|
pixels+=line_size;
|
|
block +=line_size;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_avg_pixels16_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
|
|
register vector unsigned char perm = vec_lvsl(0, pixels);
|
|
int i;
|
|
|
|
POWERPC_PERF_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;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_avg_pixels16_num, 1);
|
|
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 8) == 0) */
|
|
void avg_pixels8_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_avg_pixels8_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int i;
|
|
POWERPC_PERF_START_COUNT(altivec_avg_pixels8_num, 1);
|
|
for (i = 0; i < h; i++) {
|
|
*((uint32_t *) (block)) =
|
|
(((*((uint32_t *) (block))) |
|
|
((((const struct unaligned_32 *) (pixels))->l))) -
|
|
((((*((uint32_t *) (block))) ^
|
|
((((const struct unaligned_32 *) (pixels))->
|
|
l))) & 0xFEFEFEFEUL) >> 1));
|
|
*((uint32_t *) (block + 4)) =
|
|
(((*((uint32_t *) (block + 4))) |
|
|
((((const struct unaligned_32 *) (pixels + 4))->l))) -
|
|
((((*((uint32_t *) (block + 4))) ^
|
|
((((const struct unaligned_32 *) (pixels +
|
|
4))->
|
|
l))) & 0xFEFEFEFEUL) >> 1));
|
|
pixels += line_size;
|
|
block += line_size;
|
|
}
|
|
POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
|
|
int i;
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_avg_pixels8_num, 1);
|
|
|
|
for (i = 0; i < h; i++) {
|
|
/*
|
|
block is 8 bytes-aligned, so we're either in the
|
|
left block (16 bytes-aligned) or in the right block (not)
|
|
*/
|
|
int rightside = ((unsigned long)block & 0x0000000F);
|
|
|
|
blockv = vec_ld(0, block);
|
|
pixelsv1 = vec_ld(0, (unsigned char*)pixels);
|
|
pixelsv2 = vec_ld(16, (unsigned char*)pixels);
|
|
pixelsv = vec_perm(pixelsv1, pixelsv2, vec_lvsl(0, pixels));
|
|
|
|
if (rightside)
|
|
{
|
|
pixelsv = vec_perm(blockv, pixelsv, vcprm(0,1,s0,s1));
|
|
}
|
|
else
|
|
{
|
|
pixelsv = vec_perm(blockv, pixelsv, vcprm(s0,s1,2,3));
|
|
}
|
|
|
|
blockv = vec_avg(blockv, pixelsv);
|
|
|
|
vec_st(blockv, 0, block);
|
|
|
|
pixels += line_size;
|
|
block += line_size;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_num, 1);
|
|
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 8) == 0) */
|
|
void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_put_pixels8_xy2_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int j;
|
|
POWERPC_PERF_START_COUNT(altivec_put_pixels8_xy2_num, 1);
|
|
for (j = 0; j < 2; j++) {
|
|
int i;
|
|
const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
const uint32_t b =
|
|
(((const struct unaligned_32 *) (pixels + 1))->l);
|
|
uint32_t l0 =
|
|
(a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
|
|
uint32_t h0 =
|
|
((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
uint32_t l1, h1;
|
|
pixels += line_size;
|
|
for (i = 0; i < h; i += 2) {
|
|
uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
|
|
h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
a = (((const struct unaligned_32 *) (pixels))->l);
|
|
b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
|
|
h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
} pixels += 4 - line_size * (h + 1);
|
|
block += 4 - line_size * h;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_pixels8_xy2_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register int i;
|
|
register vector unsigned char
|
|
pixelsv1, pixelsv2,
|
|
pixelsavg;
|
|
register vector unsigned char
|
|
blockv, temp1, temp2;
|
|
register vector unsigned short
|
|
pixelssum1, pixelssum2, temp3;
|
|
register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
|
|
register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
|
|
|
|
temp1 = vec_ld(0, pixels);
|
|
temp2 = vec_ld(16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
|
|
if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
|
|
}
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
pixelssum1 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
pixelssum1 = vec_add(pixelssum1, vctwo);
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_put_pixels8_xy2_num, 1);
|
|
for (i = 0; i < h ; i++) {
|
|
int rightside = ((unsigned long)block & 0x0000000F);
|
|
blockv = vec_ld(0, block);
|
|
|
|
temp1 = vec_ld(line_size, pixels);
|
|
temp2 = vec_ld(line_size + 16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
|
|
if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
|
|
}
|
|
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
pixelssum2 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
temp3 = vec_add(pixelssum1, pixelssum2);
|
|
temp3 = vec_sra(temp3, vctwo);
|
|
pixelssum1 = vec_add(pixelssum2, vctwo);
|
|
pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
|
|
|
|
if (rightside)
|
|
{
|
|
blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
|
|
}
|
|
else
|
|
{
|
|
blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
|
|
}
|
|
|
|
vec_st(blockv, 0, block);
|
|
|
|
block += line_size;
|
|
pixels += line_size;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_pixels8_xy2_num, 1);
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 8) == 0) */
|
|
void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels8_xy2_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int j;
|
|
POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
|
|
for (j = 0; j < 2; j++) {
|
|
int i;
|
|
const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
const uint32_t b =
|
|
(((const struct unaligned_32 *) (pixels + 1))->l);
|
|
uint32_t l0 =
|
|
(a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
|
|
uint32_t h0 =
|
|
((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
uint32_t l1, h1;
|
|
pixels += line_size;
|
|
for (i = 0; i < h; i += 2) {
|
|
uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
|
|
h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
a = (((const struct unaligned_32 *) (pixels))->l);
|
|
b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
|
|
h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
} pixels += 4 - line_size * (h + 1);
|
|
block += 4 - line_size * h;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register int i;
|
|
register vector unsigned char
|
|
pixelsv1, pixelsv2,
|
|
pixelsavg;
|
|
register vector unsigned char
|
|
blockv, temp1, temp2;
|
|
register vector unsigned short
|
|
pixelssum1, pixelssum2, temp3;
|
|
register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
|
|
register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1);
|
|
register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
|
|
|
|
temp1 = vec_ld(0, pixels);
|
|
temp2 = vec_ld(16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
|
|
if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
|
|
}
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
pixelssum1 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
pixelssum1 = vec_add(pixelssum1, vcone);
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
|
|
for (i = 0; i < h ; i++) {
|
|
int rightside = ((unsigned long)block & 0x0000000F);
|
|
blockv = vec_ld(0, block);
|
|
|
|
temp1 = vec_ld(line_size, pixels);
|
|
temp2 = vec_ld(line_size + 16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
|
|
if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
|
|
}
|
|
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
pixelssum2 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
temp3 = vec_add(pixelssum1, pixelssum2);
|
|
temp3 = vec_sra(temp3, vctwo);
|
|
pixelssum1 = vec_add(pixelssum2, vcone);
|
|
pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
|
|
|
|
if (rightside)
|
|
{
|
|
blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
|
|
}
|
|
else
|
|
{
|
|
blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
|
|
}
|
|
|
|
vec_st(blockv, 0, block);
|
|
|
|
block += line_size;
|
|
pixels += line_size;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 16) == 0) */
|
|
void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_put_pixels16_xy2_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int j;
|
|
POWERPC_PERF_START_COUNT(altivec_put_pixels16_xy2_num, 1);
|
|
for (j = 0; j < 4; j++) {
|
|
int i;
|
|
const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
const uint32_t b =
|
|
(((const struct unaligned_32 *) (pixels + 1))->l);
|
|
uint32_t l0 =
|
|
(a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
|
|
uint32_t h0 =
|
|
((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
uint32_t l1, h1;
|
|
pixels += line_size;
|
|
for (i = 0; i < h; i += 2) {
|
|
uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
|
|
h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
a = (((const struct unaligned_32 *) (pixels))->l);
|
|
b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
|
|
h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
} pixels += 4 - line_size * (h + 1);
|
|
block += 4 - line_size * h;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_xy2_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register int i;
|
|
register vector unsigned char
|
|
pixelsv1, pixelsv2, pixelsv3, pixelsv4;
|
|
register vector unsigned char
|
|
blockv, temp1, temp2;
|
|
register vector unsigned short
|
|
pixelssum1, pixelssum2, temp3,
|
|
pixelssum3, pixelssum4, temp4;
|
|
register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
|
|
register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_put_pixels16_xy2_num, 1);
|
|
|
|
temp1 = vec_ld(0, pixels);
|
|
temp2 = vec_ld(16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
|
|
if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
|
|
}
|
|
pixelsv3 = vec_mergel(vczero, pixelsv1);
|
|
pixelsv4 = vec_mergel(vczero, pixelsv2);
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
pixelssum3 = vec_add((vector unsigned short)pixelsv3,
|
|
(vector unsigned short)pixelsv4);
|
|
pixelssum3 = vec_add(pixelssum3, vctwo);
|
|
pixelssum1 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
pixelssum1 = vec_add(pixelssum1, vctwo);
|
|
|
|
for (i = 0; i < h ; i++) {
|
|
blockv = vec_ld(0, block);
|
|
|
|
temp1 = vec_ld(line_size, pixels);
|
|
temp2 = vec_ld(line_size + 16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
|
|
if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
|
|
}
|
|
|
|
pixelsv3 = vec_mergel(vczero, pixelsv1);
|
|
pixelsv4 = vec_mergel(vczero, pixelsv2);
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
|
|
pixelssum4 = vec_add((vector unsigned short)pixelsv3,
|
|
(vector unsigned short)pixelsv4);
|
|
pixelssum2 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
temp4 = vec_add(pixelssum3, pixelssum4);
|
|
temp4 = vec_sra(temp4, vctwo);
|
|
temp3 = vec_add(pixelssum1, pixelssum2);
|
|
temp3 = vec_sra(temp3, vctwo);
|
|
|
|
pixelssum3 = vec_add(pixelssum4, vctwo);
|
|
pixelssum1 = vec_add(pixelssum2, vctwo);
|
|
|
|
blockv = vec_packsu(temp3, temp4);
|
|
|
|
vec_st(blockv, 0, block);
|
|
|
|
block += line_size;
|
|
pixels += line_size;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_xy2_num, 1);
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 16) == 0) */
|
|
void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels16_xy2_num, 1);
|
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE
|
|
int j;
|
|
POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
|
|
for (j = 0; j < 4; j++) {
|
|
int i;
|
|
const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
const uint32_t b =
|
|
(((const struct unaligned_32 *) (pixels + 1))->l);
|
|
uint32_t l0 =
|
|
(a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
|
|
uint32_t h0 =
|
|
((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
uint32_t l1, h1;
|
|
pixels += line_size;
|
|
for (i = 0; i < h; i += 2) {
|
|
uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
|
|
uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
|
|
h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
a = (((const struct unaligned_32 *) (pixels))->l);
|
|
b = (((const struct unaligned_32 *) (pixels + 1))->l);
|
|
l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
|
|
h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
|
|
*((uint32_t *) block) =
|
|
h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
|
|
pixels += line_size;
|
|
block += line_size;
|
|
} pixels += 4 - line_size * (h + 1);
|
|
block += 4 - line_size * h;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
|
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
register int i;
|
|
register vector unsigned char
|
|
pixelsv1, pixelsv2, pixelsv3, pixelsv4;
|
|
register vector unsigned char
|
|
blockv, temp1, temp2;
|
|
register vector unsigned short
|
|
pixelssum1, pixelssum2, temp3,
|
|
pixelssum3, pixelssum4, temp4;
|
|
register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
|
|
register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1);
|
|
register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
|
|
|
|
POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
|
|
|
|
temp1 = vec_ld(0, pixels);
|
|
temp2 = vec_ld(16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
|
|
if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
|
|
}
|
|
pixelsv3 = vec_mergel(vczero, pixelsv1);
|
|
pixelsv4 = vec_mergel(vczero, pixelsv2);
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
pixelssum3 = vec_add((vector unsigned short)pixelsv3,
|
|
(vector unsigned short)pixelsv4);
|
|
pixelssum3 = vec_add(pixelssum3, vcone);
|
|
pixelssum1 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
pixelssum1 = vec_add(pixelssum1, vcone);
|
|
|
|
for (i = 0; i < h ; i++) {
|
|
blockv = vec_ld(0, block);
|
|
|
|
temp1 = vec_ld(line_size, pixels);
|
|
temp2 = vec_ld(line_size + 16, pixels);
|
|
pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
|
|
if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
|
|
{
|
|
pixelsv2 = temp2;
|
|
}
|
|
else
|
|
{
|
|
pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
|
|
}
|
|
|
|
pixelsv3 = vec_mergel(vczero, pixelsv1);
|
|
pixelsv4 = vec_mergel(vczero, pixelsv2);
|
|
pixelsv1 = vec_mergeh(vczero, pixelsv1);
|
|
pixelsv2 = vec_mergeh(vczero, pixelsv2);
|
|
|
|
pixelssum4 = vec_add((vector unsigned short)pixelsv3,
|
|
(vector unsigned short)pixelsv4);
|
|
pixelssum2 = vec_add((vector unsigned short)pixelsv1,
|
|
(vector unsigned short)pixelsv2);
|
|
temp4 = vec_add(pixelssum3, pixelssum4);
|
|
temp4 = vec_sra(temp4, vctwo);
|
|
temp3 = vec_add(pixelssum1, pixelssum2);
|
|
temp3 = vec_sra(temp3, vctwo);
|
|
|
|
pixelssum3 = vec_add(pixelssum4, vcone);
|
|
pixelssum1 = vec_add(pixelssum2, vcone);
|
|
|
|
blockv = vec_packsu(temp3, temp4);
|
|
|
|
vec_st(blockv, 0, block);
|
|
|
|
block += line_size;
|
|
pixels += line_size;
|
|
}
|
|
|
|
POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
|
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
|
|
}
|
|
|
|
#ifdef CONFIG_DARWIN
|
|
int hadamard8_diff8x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
|
|
POWERPC_PERF_DECLARE(altivec_hadamard8_diff8x8_num, 1);
|
|
int sum;
|
|
POWERPC_PERF_START_COUNT(altivec_hadamard8_diff8x8_num, 1);
|
|
register const_vector unsigned char vzero = (const_vector unsigned char)vec_splat_u8(0);
|
|
register vector signed short temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
|
|
{
|
|
register const_vector signed short vprod1 = (const_vector signed short)AVV( 1,-1, 1,-1, 1,-1, 1,-1);
|
|
register const_vector signed short vprod2 = (const_vector signed short)AVV( 1, 1,-1,-1, 1, 1,-1,-1);
|
|
register const_vector signed short vprod3 = (const_vector signed short)AVV( 1, 1, 1, 1,-1,-1,-1,-1);
|
|
register const_vector unsigned char perm1 = (const_vector unsigned char)
|
|
AVV(0x02, 0x03, 0x00, 0x01,
|
|
0x06, 0x07, 0x04, 0x05,
|
|
0x0A, 0x0B, 0x08, 0x09,
|
|
0x0E, 0x0F, 0x0C, 0x0D);
|
|
register const_vector unsigned char perm2 = (const_vector unsigned char)
|
|
AVV(0x04, 0x05, 0x06, 0x07,
|
|
0x00, 0x01, 0x02, 0x03,
|
|
0x0C, 0x0D, 0x0E, 0x0F,
|
|
0x08, 0x09, 0x0A, 0x0B);
|
|
register const_vector unsigned char perm3 = (const_vector unsigned char)
|
|
AVV(0x08, 0x09, 0x0A, 0x0B,
|
|
0x0C, 0x0D, 0x0E, 0x0F,
|
|
0x00, 0x01, 0x02, 0x03,
|
|
0x04, 0x05, 0x06, 0x07);
|
|
|
|
#define ONEITERBUTTERFLY(i, res) \
|
|
{ \
|
|
register vector unsigned char src1, src2, srcO; \
|
|
register vector unsigned char dst1, dst2, dstO; \
|
|
src1 = vec_ld(stride * i, src); \
|
|
if ((((stride * i) + (unsigned long)src) & 0x0000000F) > 8) \
|
|
src2 = vec_ld((stride * i) + 16, src); \
|
|
srcO = vec_perm(src1, src2, vec_lvsl(stride * i, src)); \
|
|
dst1 = vec_ld(stride * i, dst); \
|
|
if ((((stride * i) + (unsigned long)dst) & 0x0000000F) > 8) \
|
|
dst2 = vec_ld((stride * i) + 16, dst); \
|
|
dstO = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst)); \
|
|
/* promote the unsigned chars to signed shorts */ \
|
|
/* we're in the 8x8 function, we only care for the first 8 */ \
|
|
register vector signed short srcV = \
|
|
(vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)srcO); \
|
|
register vector signed short dstV = \
|
|
(vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)dstO); \
|
|
/* substractions inside the first butterfly */ \
|
|
register vector signed short but0 = vec_sub(srcV, dstV); \
|
|
register vector signed short op1 = vec_perm(but0, but0, perm1); \
|
|
register vector signed short but1 = vec_mladd(but0, vprod1, op1); \
|
|
register vector signed short op2 = vec_perm(but1, but1, perm2); \
|
|
register vector signed short but2 = vec_mladd(but1, vprod2, op2); \
|
|
register vector signed short op3 = vec_perm(but2, but2, perm3); \
|
|
res = vec_mladd(but2, vprod3, op3); \
|
|
}
|
|
ONEITERBUTTERFLY(0, temp0);
|
|
ONEITERBUTTERFLY(1, temp1);
|
|
ONEITERBUTTERFLY(2, temp2);
|
|
ONEITERBUTTERFLY(3, temp3);
|
|
ONEITERBUTTERFLY(4, temp4);
|
|
ONEITERBUTTERFLY(5, temp5);
|
|
ONEITERBUTTERFLY(6, temp6);
|
|
ONEITERBUTTERFLY(7, temp7);
|
|
}
|
|
#undef ONEITERBUTTERFLY
|
|
{
|
|
register vector signed int vsum;
|
|
register vector signed short line0 = vec_add(temp0, temp1);
|
|
register vector signed short line1 = vec_sub(temp0, temp1);
|
|
register vector signed short line2 = vec_add(temp2, temp3);
|
|
register vector signed short line3 = vec_sub(temp2, temp3);
|
|
register vector signed short line4 = vec_add(temp4, temp5);
|
|
register vector signed short line5 = vec_sub(temp4, temp5);
|
|
register vector signed short line6 = vec_add(temp6, temp7);
|
|
register vector signed short line7 = vec_sub(temp6, temp7);
|
|
|
|
register vector signed short line0B = vec_add(line0, line2);
|
|
register vector signed short line2B = vec_sub(line0, line2);
|
|
register vector signed short line1B = vec_add(line1, line3);
|
|
register vector signed short line3B = vec_sub(line1, line3);
|
|
register vector signed short line4B = vec_add(line4, line6);
|
|
register vector signed short line6B = vec_sub(line4, line6);
|
|
register vector signed short line5B = vec_add(line5, line7);
|
|
register vector signed short line7B = vec_sub(line5, line7);
|
|
|
|
register vector signed short line0C = vec_add(line0B, line4B);
|
|
register vector signed short line4C = vec_sub(line0B, line4B);
|
|
register vector signed short line1C = vec_add(line1B, line5B);
|
|
register vector signed short line5C = vec_sub(line1B, line5B);
|
|
register vector signed short line2C = vec_add(line2B, line6B);
|
|
register vector signed short line6C = vec_sub(line2B, line6B);
|
|
register vector signed short line3C = vec_add(line3B, line7B);
|
|
register vector signed short line7C = vec_sub(line3B, line7B);
|
|
|
|
vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0));
|
|
vsum = vec_sum4s(vec_abs(line1C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line2C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line3C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line4C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line5C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line6C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line7C), vsum);
|
|
vsum = vec_sums(vsum, (vector signed int)vzero);
|
|
vsum = vec_splat(vsum, 3);
|
|
vec_ste(vsum, 0, &sum);
|
|
}
|
|
POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff8x8_num, 1);
|
|
return sum;
|
|
}
|
|
|
|
/*
|
|
16x8 works with 16 elements ; it allows to avoid replicating
|
|
loads, and give the compiler more rooms for scheduling.
|
|
It's only used from inside hadamard8_diff16_altivec.
|
|
|
|
Unfortunately, it seems gcc-3.3 is a bit dumb, and
|
|
the compiled code has a LOT of spill code, it seems
|
|
gcc (unlike xlc) cannot keep everything in registers
|
|
by itself. The following code include hand-made
|
|
registers allocation. It's not clean, but on
|
|
a 7450 the resulting code is much faster (best case
|
|
fall from 700+ cycles to 550).
|
|
|
|
xlc doesn't add spill code, but it doesn't know how to
|
|
schedule for the 7450, and its code isn't much faster than
|
|
gcc-3.3 on the 7450 (but uses 25% less instructions...)
|
|
|
|
On the 970, the hand-made RA is still a win (arount 690
|
|
vs. around 780), but xlc goes to around 660 on the
|
|
regular C code...
|
|
*/
|
|
|
|
static int hadamard8_diff16x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h) {
|
|
int sum;
|
|
register vector signed short
|
|
temp0 asm ("v0"),
|
|
temp1 asm ("v1"),
|
|
temp2 asm ("v2"),
|
|
temp3 asm ("v3"),
|
|
temp4 asm ("v4"),
|
|
temp5 asm ("v5"),
|
|
temp6 asm ("v6"),
|
|
temp7 asm ("v7");
|
|
register vector signed short
|
|
temp0S asm ("v8"),
|
|
temp1S asm ("v9"),
|
|
temp2S asm ("v10"),
|
|
temp3S asm ("v11"),
|
|
temp4S asm ("v12"),
|
|
temp5S asm ("v13"),
|
|
temp6S asm ("v14"),
|
|
temp7S asm ("v15");
|
|
register const_vector unsigned char vzero asm ("v31")= (const_vector unsigned char)vec_splat_u8(0);
|
|
{
|
|
register const_vector signed short vprod1 asm ("v16")= (const_vector signed short)AVV( 1,-1, 1,-1, 1,-1, 1,-1);
|
|
register const_vector signed short vprod2 asm ("v17")= (const_vector signed short)AVV( 1, 1,-1,-1, 1, 1,-1,-1);
|
|
register const_vector signed short vprod3 asm ("v18")= (const_vector signed short)AVV( 1, 1, 1, 1,-1,-1,-1,-1);
|
|
register const_vector unsigned char perm1 asm ("v19")= (const_vector unsigned char)
|
|
AVV(0x02, 0x03, 0x00, 0x01,
|
|
0x06, 0x07, 0x04, 0x05,
|
|
0x0A, 0x0B, 0x08, 0x09,
|
|
0x0E, 0x0F, 0x0C, 0x0D);
|
|
register const_vector unsigned char perm2 asm ("v20")= (const_vector unsigned char)
|
|
AVV(0x04, 0x05, 0x06, 0x07,
|
|
0x00, 0x01, 0x02, 0x03,
|
|
0x0C, 0x0D, 0x0E, 0x0F,
|
|
0x08, 0x09, 0x0A, 0x0B);
|
|
register const_vector unsigned char perm3 asm ("v21")= (const_vector unsigned char)
|
|
AVV(0x08, 0x09, 0x0A, 0x0B,
|
|
0x0C, 0x0D, 0x0E, 0x0F,
|
|
0x00, 0x01, 0x02, 0x03,
|
|
0x04, 0x05, 0x06, 0x07);
|
|
|
|
#define ONEITERBUTTERFLY(i, res1, res2) \
|
|
{ \
|
|
register vector unsigned char src1 asm ("v22"), src2 asm ("v23"); \
|
|
register vector unsigned char dst1 asm ("v24"), dst2 asm ("v25"); \
|
|
src1 = vec_ld(stride * i, src); \
|
|
src2 = vec_ld((stride * i) + 16, src); \
|
|
register vector unsigned char srcO asm ("v22") = vec_perm(src1, src2, vec_lvsl(stride * i, src)); \
|
|
dst1 = vec_ld(stride * i, dst); \
|
|
dst2 = vec_ld((stride * i) + 16, dst); \
|
|
register vector unsigned char dstO asm ("v23") = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst)); \
|
|
/* promote the unsigned chars to signed shorts */ \
|
|
register vector signed short srcV asm ("v24") = \
|
|
(vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)srcO); \
|
|
register vector signed short dstV asm ("v25") = \
|
|
(vector signed short)vec_mergeh((vector signed char)vzero, (vector signed char)dstO); \
|
|
register vector signed short srcW asm ("v26") = \
|
|
(vector signed short)vec_mergel((vector signed char)vzero, (vector signed char)srcO); \
|
|
register vector signed short dstW asm ("v27") = \
|
|
(vector signed short)vec_mergel((vector signed char)vzero, (vector signed char)dstO); \
|
|
/* substractions inside the first butterfly */ \
|
|
register vector signed short but0 asm ("v28") = vec_sub(srcV, dstV); \
|
|
register vector signed short but0S asm ("v29") = vec_sub(srcW, dstW); \
|
|
register vector signed short op1 asm ("v30") = vec_perm(but0, but0, perm1); \
|
|
register vector signed short but1 asm ("v22") = vec_mladd(but0, vprod1, op1); \
|
|
register vector signed short op1S asm ("v23") = vec_perm(but0S, but0S, perm1); \
|
|
register vector signed short but1S asm ("v24") = vec_mladd(but0S, vprod1, op1S); \
|
|
register vector signed short op2 asm ("v25") = vec_perm(but1, but1, perm2); \
|
|
register vector signed short but2 asm ("v26") = vec_mladd(but1, vprod2, op2); \
|
|
register vector signed short op2S asm ("v27") = vec_perm(but1S, but1S, perm2); \
|
|
register vector signed short but2S asm ("v28") = vec_mladd(but1S, vprod2, op2S); \
|
|
register vector signed short op3 asm ("v29") = vec_perm(but2, but2, perm3); \
|
|
res1 = vec_mladd(but2, vprod3, op3); \
|
|
register vector signed short op3S asm ("v30") = vec_perm(but2S, but2S, perm3); \
|
|
res2 = vec_mladd(but2S, vprod3, op3S); \
|
|
}
|
|
ONEITERBUTTERFLY(0, temp0, temp0S);
|
|
ONEITERBUTTERFLY(1, temp1, temp1S);
|
|
ONEITERBUTTERFLY(2, temp2, temp2S);
|
|
ONEITERBUTTERFLY(3, temp3, temp3S);
|
|
ONEITERBUTTERFLY(4, temp4, temp4S);
|
|
ONEITERBUTTERFLY(5, temp5, temp5S);
|
|
ONEITERBUTTERFLY(6, temp6, temp6S);
|
|
ONEITERBUTTERFLY(7, temp7, temp7S);
|
|
}
|
|
#undef ONEITERBUTTERFLY
|
|
{
|
|
register vector signed int vsum;
|
|
register vector signed short line0 = vec_add(temp0, temp1);
|
|
register vector signed short line1 = vec_sub(temp0, temp1);
|
|
register vector signed short line2 = vec_add(temp2, temp3);
|
|
register vector signed short line3 = vec_sub(temp2, temp3);
|
|
register vector signed short line4 = vec_add(temp4, temp5);
|
|
register vector signed short line5 = vec_sub(temp4, temp5);
|
|
register vector signed short line6 = vec_add(temp6, temp7);
|
|
register vector signed short line7 = vec_sub(temp6, temp7);
|
|
|
|
register vector signed short line0B = vec_add(line0, line2);
|
|
register vector signed short line2B = vec_sub(line0, line2);
|
|
register vector signed short line1B = vec_add(line1, line3);
|
|
register vector signed short line3B = vec_sub(line1, line3);
|
|
register vector signed short line4B = vec_add(line4, line6);
|
|
register vector signed short line6B = vec_sub(line4, line6);
|
|
register vector signed short line5B = vec_add(line5, line7);
|
|
register vector signed short line7B = vec_sub(line5, line7);
|
|
|
|
register vector signed short line0C = vec_add(line0B, line4B);
|
|
register vector signed short line4C = vec_sub(line0B, line4B);
|
|
register vector signed short line1C = vec_add(line1B, line5B);
|
|
register vector signed short line5C = vec_sub(line1B, line5B);
|
|
register vector signed short line2C = vec_add(line2B, line6B);
|
|
register vector signed short line6C = vec_sub(line2B, line6B);
|
|
register vector signed short line3C = vec_add(line3B, line7B);
|
|
register vector signed short line7C = vec_sub(line3B, line7B);
|
|
|
|
vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0));
|
|
vsum = vec_sum4s(vec_abs(line1C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line2C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line3C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line4C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line5C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line6C), vsum);
|
|
vsum = vec_sum4s(vec_abs(line7C), vsum);
|
|
|
|
register vector signed short line0S = vec_add(temp0S, temp1S);
|
|
register vector signed short line1S = vec_sub(temp0S, temp1S);
|
|
register vector signed short line2S = vec_add(temp2S, temp3S);
|
|
register vector signed short line3S = vec_sub(temp2S, temp3S);
|
|
register vector signed short line4S = vec_add(temp4S, temp5S);
|
|
register vector signed short line5S = vec_sub(temp4S, temp5S);
|
|
register vector signed short line6S = vec_add(temp6S, temp7S);
|
|
register vector signed short line7S = vec_sub(temp6S, temp7S);
|
|
|
|
register vector signed short line0BS = vec_add(line0S, line2S);
|
|
register vector signed short line2BS = vec_sub(line0S, line2S);
|
|
register vector signed short line1BS = vec_add(line1S, line3S);
|
|
register vector signed short line3BS = vec_sub(line1S, line3S);
|
|
register vector signed short line4BS = vec_add(line4S, line6S);
|
|
register vector signed short line6BS = vec_sub(line4S, line6S);
|
|
register vector signed short line5BS = vec_add(line5S, line7S);
|
|
register vector signed short line7BS = vec_sub(line5S, line7S);
|
|
|
|
register vector signed short line0CS = vec_add(line0BS, line4BS);
|
|
register vector signed short line4CS = vec_sub(line0BS, line4BS);
|
|
register vector signed short line1CS = vec_add(line1BS, line5BS);
|
|
register vector signed short line5CS = vec_sub(line1BS, line5BS);
|
|
register vector signed short line2CS = vec_add(line2BS, line6BS);
|
|
register vector signed short line6CS = vec_sub(line2BS, line6BS);
|
|
register vector signed short line3CS = vec_add(line3BS, line7BS);
|
|
register vector signed short line7CS = vec_sub(line3BS, line7BS);
|
|
|
|
vsum = vec_sum4s(vec_abs(line0CS), vsum);
|
|
vsum = vec_sum4s(vec_abs(line1CS), vsum);
|
|
vsum = vec_sum4s(vec_abs(line2CS), vsum);
|
|
vsum = vec_sum4s(vec_abs(line3CS), vsum);
|
|
vsum = vec_sum4s(vec_abs(line4CS), vsum);
|
|
vsum = vec_sum4s(vec_abs(line5CS), vsum);
|
|
vsum = vec_sum4s(vec_abs(line6CS), vsum);
|
|
vsum = vec_sum4s(vec_abs(line7CS), vsum);
|
|
vsum = vec_sums(vsum, (vector signed int)vzero);
|
|
vsum = vec_splat(vsum, 3);
|
|
vec_ste(vsum, 0, &sum);
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
int hadamard8_diff16_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
|
|
POWERPC_PERF_DECLARE(altivec_hadamard8_diff16_num, 1);
|
|
int score;
|
|
POWERPC_PERF_START_COUNT(altivec_hadamard8_diff16_num, 1);
|
|
score = hadamard8_diff16x8_altivec(s, dst, src, stride, 8);
|
|
if (h==16) {
|
|
dst += 8*stride;
|
|
src += 8*stride;
|
|
score += hadamard8_diff16x8_altivec(s, dst, src, stride, 8);
|
|
}
|
|
POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff16_num, 1);
|
|
return score;
|
|
}
|
|
#endif //CONFIG_DARWIN
|
|
|
|
int has_altivec(void)
|
|
{
|
|
#ifdef 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);
|
|
#else /* CONFIG_DARWIN */
|
|
/* no Darwin, do it the brute-force way */
|
|
/* this is borrowed from the libmpeg2 library */
|
|
{
|
|
signal (SIGILL, sigill_handler);
|
|
if (sigsetjmp (jmpbuf, 1)) {
|
|
signal (SIGILL, SIG_DFL);
|
|
} else {
|
|
canjump = 1;
|
|
|
|
asm volatile ("mtspr 256, %0\n\t"
|
|
"vand %%v0, %%v0, %%v0"
|
|
:
|
|
: "r" (-1));
|
|
|
|
signal (SIGILL, SIG_DFL);
|
|
return 1;
|
|
}
|
|
}
|
|
#endif /* CONFIG_DARWIN */
|
|
return 0;
|
|
}
|
|
|
|
/* next one assumes that ((line_size % 8) == 0) */
|
|
void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
POWERPC_PERF_DECLARE(altivec_avg_pixels8_xy2_num, 1);
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#ifdef ALTIVEC_USE_REFERENCE_C_CODE
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int j;
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POWERPC_PERF_START_COUNT(altivec_avg_pixels8_xy2_num, 1);
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for (j = 0; j < 2; j++) {
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int i;
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const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
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const uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
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uint32_t l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
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uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
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uint32_t l1, h1;
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pixels += line_size;
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for (i = 0; i < h; i += 2) {
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uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
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uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
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l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
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h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
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*((uint32_t *) block) = rnd_avg32(*((uint32_t *) block), h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));
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pixels += line_size;
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block += line_size;
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a = (((const struct unaligned_32 *) (pixels))->l);
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b = (((const struct unaligned_32 *) (pixels + 1))->l);
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l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
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h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
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*((uint32_t *) block) = rnd_avg32(*((uint32_t *) block), h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));
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pixels += line_size;
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block += line_size;
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} pixels += 4 - line_size * (h + 1);
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block += 4 - line_size * h;
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}
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POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_xy2_num, 1);
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#else /* ALTIVEC_USE_REFERENCE_C_CODE */
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register int i;
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register vector unsigned char
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pixelsv1, pixelsv2,
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pixelsavg;
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register vector unsigned char
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blockv, temp1, temp2, blocktemp;
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register vector unsigned short
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pixelssum1, pixelssum2, temp3;
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register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
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register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
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temp1 = vec_ld(0, pixels);
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temp2 = vec_ld(16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
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if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F)
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{
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pixelsv2 = temp2;
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}
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else
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{
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
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}
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum1 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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pixelssum1 = vec_add(pixelssum1, vctwo);
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POWERPC_PERF_START_COUNT(altivec_avg_pixels8_xy2_num, 1);
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for (i = 0; i < h ; i++) {
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int rightside = ((unsigned long)block & 0x0000000F);
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blockv = vec_ld(0, block);
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temp1 = vec_ld(line_size, pixels);
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temp2 = vec_ld(line_size + 16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
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if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F)
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{
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pixelsv2 = temp2;
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}
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else
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{
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
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}
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum2 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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temp3 = vec_add(pixelssum1, pixelssum2);
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temp3 = vec_sra(temp3, vctwo);
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pixelssum1 = vec_add(pixelssum2, vctwo);
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pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
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if (rightside)
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{
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blocktemp = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
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}
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else
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{
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blocktemp = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
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}
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blockv = vec_avg(blocktemp, blockv);
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vec_st(blockv, 0, block);
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block += line_size;
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pixels += line_size;
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}
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POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_xy2_num, 1);
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#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
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}
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