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/*
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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 file is part of FFmpeg.
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 *
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 * FFmpeg 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 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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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#ifdef __AMIGAOS4__
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#include <exec/exec.h>
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#include <interfaces/exec.h>
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#include <proto/exec.h>
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#else /* __AMIGAOS4__ */
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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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#endif /* __AMIGAOS4__ */
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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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183
    /*
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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]
210
        */
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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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220
        /*
221
          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.
226
        */
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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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238
        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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241
        /* Pack the shorts back into a result */
242
        avgv = vec_pack(avghv, avglv);
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244
        /* 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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247
        /* 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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250
        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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    }
256
    /* Sum up the four partial sums, and put the result into s */
257
    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;
262
}
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int sad16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
265
{
266
    int i;
267
    int s __attribute__((aligned(16)));
268
    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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274
    sad = (vector unsigned int)vec_splat_u32(0);
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277
    for(i=0;i<h;i++) {
278
        /* 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;
281
        perm2 = vec_lvsl(0, pix2);
282
        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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286
        /* Calculate a sum of abs differences vector */
287
        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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291
        /* Add each 4 pixel group together and put 4 results into sad */
292
        sad = vec_sum4s(t5, sad);
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294
        pix1 += line_size;
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        pix2 += line_size;
296
    }
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298
    /* Sum up the four partial sums, and put the result into s */
299
    sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
300
    sumdiffs = vec_splat(sumdiffs, 3);
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    vec_ste(sumdiffs, 0, &s);
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    return s;
304
}
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int sad8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
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{
308
    int i;
309
    int s __attribute__((aligned(16)));
310
    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;
314
    vector signed int sumdiffs;
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    sad = (vector unsigned int)vec_splat_u32(0);
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318
    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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320
    for(i=0;i<h;i++) {
321
        /* Read potentially unaligned pixels into t1 and t2
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           Since we're reading 16 pixels, and actually only want 8,
323
           mask out the last 8 pixels. The 0s don't change the sum. */
324
        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 */
332
        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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336
        /* Add each 4 pixel group together and put 4 results into sad */
337
        sad = vec_sum4s(t5, sad);
338

    
339
        pix1 += line_size;
340
        pix2 += line_size;
341
    }
342

    
343
    /* Sum up the four partial sums, and put the result into s */
344
    sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
345
    sumdiffs = vec_splat(sumdiffs, 3);
346
    vec_ste(sumdiffs, 0, &s);
347

    
348
    return s;
349
}
350

    
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int pix_norm1_altivec(uint8_t *pix, int line_size)
352
{
353
    int i;
354
    int s __attribute__((aligned(16)));
355
    const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
356
    vector unsigned char *tv;
357
    vector unsigned char pixv;
358
    vector unsigned int sv;
359
    vector signed int sum;
360

    
361
    sv = (vector unsigned int)vec_splat_u32(0);
362

    
363
    s = 0;
364
    for (i = 0; i < 16; i++) {
365
        /* Read in the potentially unaligned pixels */
366
        tv = (vector unsigned char *) pix;
367
        pixv = vec_perm(tv[0], tv[1], vec_lvsl(0, pix));
368

    
369
        /* Square the values, and add them to our sum */
370
        sv = vec_msum(pixv, pixv, sv);
371

    
372
        pix += line_size;
373
    }
374
    /* Sum up the four partial sums, and put the result into s */
375
    sum = vec_sums((vector signed int) sv, (vector signed int) zero);
376
    sum = vec_splat(sum, 3);
377
    vec_ste(sum, 0, &s);
378

    
379
    return s;
380
}
381

    
382
/**
383
 * Sum of Squared Errors for a 8x8 block.
384
 * AltiVec-enhanced.
385
 * It's the sad8_altivec code above w/ squaring added.
386
 */
387
int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
388
{
389
    int i;
390
    int s __attribute__((aligned(16)));
391
    const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
392
    vector unsigned char perm1, perm2, permclear, *pix1v, *pix2v;
393
    vector unsigned char t1, t2, t3,t4, t5;
394
    vector unsigned int sum;
395
    vector signed int sumsqr;
396

    
397
    sum = (vector unsigned int)vec_splat_u32(0);
398

    
399
    permclear = (vector unsigned char)AVV(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0);
400

    
401

    
402
    for(i=0;i<h;i++) {
403
        /* Read potentially unaligned pixels into t1 and t2
404
           Since we're reading 16 pixels, and actually only want 8,
405
           mask out the last 8 pixels. The 0s don't change the sum. */
406
        perm1 = vec_lvsl(0, pix1);
407
        pix1v = (vector unsigned char *) pix1;
408
        perm2 = vec_lvsl(0, pix2);
409
        pix2v = (vector unsigned char *) pix2;
410
        t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear);
411
        t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear);
412

    
413
        /*
414
          Since we want to use unsigned chars, we can take advantage
415
          of the fact that abs(a-b)^2 = (a-b)^2.
416
        */
417

    
418
        /* Calculate abs differences vector */
419
        t3 = vec_max(t1, t2);
420
        t4 = vec_min(t1, t2);
421
        t5 = vec_sub(t3, t4);
422

    
423
        /* Square the values and add them to our sum */
424
        sum = vec_msum(t5, t5, sum);
425

    
426
        pix1 += line_size;
427
        pix2 += line_size;
428
    }
429

    
430
    /* Sum up the four partial sums, and put the result into s */
431
    sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero);
432
    sumsqr = vec_splat(sumsqr, 3);
433
    vec_ste(sumsqr, 0, &s);
434

    
435
    return s;
436
}
437

    
438
/**
439
 * Sum of Squared Errors for a 16x16 block.
440
 * AltiVec-enhanced.
441
 * It's the sad16_altivec code above w/ squaring added.
442
 */
443
int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
444
{
445
    int i;
446
    int s __attribute__((aligned(16)));
447
    const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
448
    vector unsigned char perm1, perm2, *pix1v, *pix2v;
449
    vector unsigned char t1, t2, t3,t4, t5;
450
    vector unsigned int sum;
451
    vector signed int sumsqr;
452

    
453
    sum = (vector unsigned int)vec_splat_u32(0);
454

    
455
    for(i=0;i<h;i++) {
456
        /* Read potentially unaligned pixels into t1 and t2 */
457
        perm1 = vec_lvsl(0, pix1);
458
        pix1v = (vector unsigned char *) pix1;
459
        perm2 = vec_lvsl(0, pix2);
460
        pix2v = (vector unsigned char *) pix2;
461
        t1 = vec_perm(pix1v[0], pix1v[1], perm1);
462
        t2 = vec_perm(pix2v[0], pix2v[1], perm2);
463

    
464
        /*
465
          Since we want to use unsigned chars, we can take advantage
466
          of the fact that abs(a-b)^2 = (a-b)^2.
467
        */
468

    
469
        /* Calculate abs differences vector */
470
        t3 = vec_max(t1, t2);
471
        t4 = vec_min(t1, t2);
472
        t5 = vec_sub(t3, t4);
473

    
474
        /* Square the values and add them to our sum */
475
        sum = vec_msum(t5, t5, sum);
476

    
477
        pix1 += line_size;
478
        pix2 += line_size;
479
    }
480

    
481
    /* Sum up the four partial sums, and put the result into s */
482
    sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero);
483
    sumsqr = vec_splat(sumsqr, 3);
484
    vec_ste(sumsqr, 0, &s);
485

    
486
    return s;
487
}
488

    
489
int pix_sum_altivec(uint8_t * pix, int line_size)
490
{
491
    const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0);
492
    vector unsigned char perm, *pixv;
493
    vector unsigned char t1;
494
    vector unsigned int sad;
495
    vector signed int sumdiffs;
496

    
497
    int i;
498
    int s __attribute__((aligned(16)));
499

    
500
    sad = (vector unsigned int)vec_splat_u32(0);
501

    
502
    for (i = 0; i < 16; i++) {
503
        /* Read the potentially unaligned 16 pixels into t1 */
504
        perm = vec_lvsl(0, pix);
505
        pixv = (vector unsigned char *) pix;
506
        t1 = vec_perm(pixv[0], pixv[1], perm);
507

    
508
        /* Add each 4 pixel group together and put 4 results into sad */
509
        sad = vec_sum4s(t1, sad);
510

    
511
        pix += line_size;
512
    }
513

    
514
    /* Sum up the four partial sums, and put the result into s */
515
    sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
516
    sumdiffs = vec_splat(sumdiffs, 3);
517
    vec_ste(sumdiffs, 0, &s);
518

    
519
    return s;
520
}
521

    
522
void get_pixels_altivec(DCTELEM *restrict block, const uint8_t *pixels, int line_size)
523
{
524
    int i;
525
    vector unsigned char perm, bytes, *pixv;
526
    const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0);
527
    vector signed short shorts;
528

    
529
    for(i=0;i<8;i++)
530
    {
531
        // Read potentially unaligned pixels.
532
        // We're reading 16 pixels, and actually only want 8,
533
        // but we simply ignore the extras.
534
        perm = vec_lvsl(0, pixels);
535
        pixv = (vector unsigned char *) pixels;
536
        bytes = vec_perm(pixv[0], pixv[1], perm);
537

    
538
        // convert the bytes into shorts
539
        shorts = (vector signed short)vec_mergeh(zero, bytes);
540

    
541
        // save the data to the block, we assume the block is 16-byte aligned
542
        vec_st(shorts, i*16, (vector signed short*)block);
543

    
544
        pixels += line_size;
545
    }
546
}
547

    
548
void diff_pixels_altivec(DCTELEM *restrict block, const uint8_t *s1,
549
        const uint8_t *s2, int stride)
550
{
551
    int i;
552
    vector unsigned char perm, bytes, *pixv;
553
    const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0);
554
    vector signed short shorts1, shorts2;
555

    
556
    for(i=0;i<4;i++)
557
    {
558
        // Read potentially unaligned pixels
559
        // We're reading 16 pixels, and actually only want 8,
560
        // but we simply ignore the extras.
561
        perm = vec_lvsl(0, s1);
562
        pixv = (vector unsigned char *) s1;
563
        bytes = vec_perm(pixv[0], pixv[1], perm);
564

    
565
        // convert the bytes into shorts
566
        shorts1 = (vector signed short)vec_mergeh(zero, bytes);
567

    
568
        // Do the same for the second block of pixels
569
        perm = vec_lvsl(0, s2);
570
        pixv = (vector unsigned char *) s2;
571
        bytes = vec_perm(pixv[0], pixv[1], perm);
572

    
573
        // convert the bytes into shorts
574
        shorts2 = (vector signed short)vec_mergeh(zero, bytes);
575

    
576
        // Do the subtraction
577
        shorts1 = vec_sub(shorts1, shorts2);
578

    
579
        // save the data to the block, we assume the block is 16-byte aligned
580
        vec_st(shorts1, 0, (vector signed short*)block);
581

    
582
        s1 += stride;
583
        s2 += stride;
584
        block += 8;
585

    
586

    
587
        // The code below is a copy of the code above... This is a manual
588
        // unroll.
589

    
590
        // Read potentially unaligned pixels
591
        // We're reading 16 pixels, and actually only want 8,
592
        // but we simply ignore the extras.
593
        perm = vec_lvsl(0, s1);
594
        pixv = (vector unsigned char *) s1;
595
        bytes = vec_perm(pixv[0], pixv[1], perm);
596

    
597
        // convert the bytes into shorts
598
        shorts1 = (vector signed short)vec_mergeh(zero, bytes);
599

    
600
        // Do the same for the second block of pixels
601
        perm = vec_lvsl(0, s2);
602
        pixv = (vector unsigned char *) s2;
603
        bytes = vec_perm(pixv[0], pixv[1], perm);
604

    
605
        // convert the bytes into shorts
606
        shorts2 = (vector signed short)vec_mergeh(zero, bytes);
607

    
608
        // Do the subtraction
609
        shorts1 = vec_sub(shorts1, shorts2);
610

    
611
        // save the data to the block, we assume the block is 16-byte aligned
612
        vec_st(shorts1, 0, (vector signed short*)block);
613

    
614
        s1 += stride;
615
        s2 += stride;
616
        block += 8;
617
    }
618
}
619

    
620
void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w) {
621
    register int i;
622
    register vector unsigned char vdst, vsrc;
623

    
624
    /* dst and src are 16 bytes-aligned (guaranteed) */
625
    for(i = 0 ; (i + 15) < w ; i+=16)
626
    {
627
      vdst = vec_ld(i, (unsigned char*)dst);
628
      vsrc = vec_ld(i, (unsigned char*)src);
629
      vdst = vec_add(vsrc, vdst);
630
      vec_st(vdst, i, (unsigned char*)dst);
631
    }
632
    /* if w is not a multiple of 16 */
633
    for (; (i < w) ; i++)
634
    {
635
      dst[i] = src[i];
636
    }
637
}
638

    
639
/* next one assumes that ((line_size % 16) == 0) */
640
void put_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
641
{
642
POWERPC_PERF_DECLARE(altivec_put_pixels16_num, 1);
643
    register vector unsigned char pixelsv1, pixelsv2;
644
    register vector unsigned char pixelsv1B, pixelsv2B;
645
    register vector unsigned char pixelsv1C, pixelsv2C;
646
    register vector unsigned char pixelsv1D, pixelsv2D;
647

    
648
    register vector unsigned char perm = vec_lvsl(0, pixels);
649
    int i;
650
    register int line_size_2 = line_size << 1;
651
    register int line_size_3 = line_size + line_size_2;
652
    register int line_size_4 = line_size << 2;
653

    
654
POWERPC_PERF_START_COUNT(altivec_put_pixels16_num, 1);
655
// hand-unrolling the loop by 4 gains about 15%
656
// mininum execution time goes from 74 to 60 cycles
657
// it's faster than -funroll-loops, but using
658
// -funroll-loops w/ this is bad - 74 cycles again.
659
// all this is on a 7450, tuning for the 7450
660
#if 0
661
    for(i=0; i<h; i++) {
662
      pixelsv1 = vec_ld(0, (unsigned char*)pixels);
663
      pixelsv2 = vec_ld(16, (unsigned char*)pixels);
664
      vec_st(vec_perm(pixelsv1, pixelsv2, perm),
665
             0, (unsigned char*)block);
666
      pixels+=line_size;
667
      block +=line_size;
668
    }
669
#else
670
    for(i=0; i<h; i+=4) {
671
      pixelsv1 = vec_ld(0, (unsigned char*)pixels);
672
      pixelsv2 = vec_ld(15, (unsigned char*)pixels);
673
      pixelsv1B = vec_ld(line_size, (unsigned char*)pixels);
674
      pixelsv2B = vec_ld(15 + line_size, (unsigned char*)pixels);
675
      pixelsv1C = vec_ld(line_size_2, (unsigned char*)pixels);
676
      pixelsv2C = vec_ld(15 + line_size_2, (unsigned char*)pixels);
677
      pixelsv1D = vec_ld(line_size_3, (unsigned char*)pixels);
678
      pixelsv2D = vec_ld(15 + line_size_3, (unsigned char*)pixels);
679
      vec_st(vec_perm(pixelsv1, pixelsv2, perm),
680
             0, (unsigned char*)block);
681
      vec_st(vec_perm(pixelsv1B, pixelsv2B, perm),
682
             line_size, (unsigned char*)block);
683
      vec_st(vec_perm(pixelsv1C, pixelsv2C, perm),
684
             line_size_2, (unsigned char*)block);
685
      vec_st(vec_perm(pixelsv1D, pixelsv2D, perm),
686
             line_size_3, (unsigned char*)block);
687
      pixels+=line_size_4;
688
      block +=line_size_4;
689
    }
690
#endif
691
POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_num, 1);
692
}
693

    
694
/* next one assumes that ((line_size % 16) == 0) */
695
#define op_avg(a,b)  a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) )
696
void avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
697
{
698
POWERPC_PERF_DECLARE(altivec_avg_pixels16_num, 1);
699
    register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
700
    register vector unsigned char perm = vec_lvsl(0, pixels);
701
    int i;
702

    
703
POWERPC_PERF_START_COUNT(altivec_avg_pixels16_num, 1);
704

    
705
    for(i=0; i<h; i++) {
706
      pixelsv1 = vec_ld(0, (unsigned char*)pixels);
707
      pixelsv2 = vec_ld(16, (unsigned char*)pixels);
708
      blockv = vec_ld(0, block);
709
      pixelsv = vec_perm(pixelsv1, pixelsv2, perm);
710
      blockv = vec_avg(blockv,pixelsv);
711
      vec_st(blockv, 0, (unsigned char*)block);
712
      pixels+=line_size;
713
      block +=line_size;
714
    }
715

    
716
POWERPC_PERF_STOP_COUNT(altivec_avg_pixels16_num, 1);
717
}
718

    
719
/* next one assumes that ((line_size % 8) == 0) */
720
void avg_pixels8_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
721
{
722
POWERPC_PERF_DECLARE(altivec_avg_pixels8_num, 1);
723
    register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
724
    int i;
725

    
726
POWERPC_PERF_START_COUNT(altivec_avg_pixels8_num, 1);
727

    
728
   for (i = 0; i < h; i++) {
729
     /*
730
       block is 8 bytes-aligned, so we're either in the
731
       left block (16 bytes-aligned) or in the right block (not)
732
     */
733
     int rightside = ((unsigned long)block & 0x0000000F);
734

    
735
     blockv = vec_ld(0, block);
736
     pixelsv1 = vec_ld(0, (unsigned char*)pixels);
737
     pixelsv2 = vec_ld(16, (unsigned char*)pixels);
738
     pixelsv = vec_perm(pixelsv1, pixelsv2, vec_lvsl(0, pixels));
739

    
740
     if (rightside)
741
     {
742
       pixelsv = vec_perm(blockv, pixelsv, vcprm(0,1,s0,s1));
743
     }
744
     else
745
     {
746
       pixelsv = vec_perm(blockv, pixelsv, vcprm(s0,s1,2,3));
747
     }
748

    
749
     blockv = vec_avg(blockv, pixelsv);
750

    
751
     vec_st(blockv, 0, block);
752

    
753
     pixels += line_size;
754
     block += line_size;
755
   }
756

    
757
POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_num, 1);
758
}
759

    
760
/* next one assumes that ((line_size % 8) == 0) */
761
void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
762
{
763
POWERPC_PERF_DECLARE(altivec_put_pixels8_xy2_num, 1);
764
   register int i;
765
   register vector unsigned char
766
     pixelsv1, pixelsv2,
767
     pixelsavg;
768
   register vector unsigned char
769
     blockv, temp1, temp2;
770
   register vector unsigned short
771
     pixelssum1, pixelssum2, temp3;
772
   register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
773
   register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
774

    
775
   temp1 = vec_ld(0, pixels);
776
   temp2 = vec_ld(16, pixels);
777
   pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
778
   if ((((unsigned long)pixels) & 0x0000000F) ==  0x0000000F)
779
   {
780
     pixelsv2 = temp2;
781
   }
782
   else
783
   {
784
     pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
785
   }
786
   pixelsv1 = vec_mergeh(vczero, pixelsv1);
787
   pixelsv2 = vec_mergeh(vczero, pixelsv2);
788
   pixelssum1 = vec_add((vector unsigned short)pixelsv1,
789
                        (vector unsigned short)pixelsv2);
790
   pixelssum1 = vec_add(pixelssum1, vctwo);
791

    
792
POWERPC_PERF_START_COUNT(altivec_put_pixels8_xy2_num, 1);
793
   for (i = 0; i < h ; i++) {
794
     int rightside = ((unsigned long)block & 0x0000000F);
795
     blockv = vec_ld(0, block);
796

    
797
     temp1 = vec_ld(line_size, pixels);
798
     temp2 = vec_ld(line_size + 16, pixels);
799
     pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
800
     if (((((unsigned long)pixels) + line_size) & 0x0000000F) ==  0x0000000F)
801
     {
802
       pixelsv2 = temp2;
803
     }
804
     else
805
     {
806
       pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
807
     }
808

    
809
     pixelsv1 = vec_mergeh(vczero, pixelsv1);
810
     pixelsv2 = vec_mergeh(vczero, pixelsv2);
811
     pixelssum2 = vec_add((vector unsigned short)pixelsv1,
812
                          (vector unsigned short)pixelsv2);
813
     temp3 = vec_add(pixelssum1, pixelssum2);
814
     temp3 = vec_sra(temp3, vctwo);
815
     pixelssum1 = vec_add(pixelssum2, vctwo);
816
     pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
817

    
818
     if (rightside)
819
     {
820
       blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
821
     }
822
     else
823
     {
824
       blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
825
     }
826

    
827
     vec_st(blockv, 0, block);
828

    
829
     block += line_size;
830
     pixels += line_size;
831
   }
832

    
833
POWERPC_PERF_STOP_COUNT(altivec_put_pixels8_xy2_num, 1);
834
}
835

    
836
/* next one assumes that ((line_size % 8) == 0) */
837
void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
838
{
839
POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels8_xy2_num, 1);
840
   register int i;
841
   register vector unsigned char
842
     pixelsv1, pixelsv2,
843
     pixelsavg;
844
   register vector unsigned char
845
     blockv, temp1, temp2;
846
   register vector unsigned short
847
     pixelssum1, pixelssum2, temp3;
848
   register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
849
   register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1);
850
   register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
851

    
852
   temp1 = vec_ld(0, pixels);
853
   temp2 = vec_ld(16, pixels);
854
   pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
855
   if ((((unsigned long)pixels) & 0x0000000F) ==  0x0000000F)
856
   {
857
     pixelsv2 = temp2;
858
   }
859
   else
860
   {
861
     pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
862
   }
863
   pixelsv1 = vec_mergeh(vczero, pixelsv1);
864
   pixelsv2 = vec_mergeh(vczero, pixelsv2);
865
   pixelssum1 = vec_add((vector unsigned short)pixelsv1,
866
                        (vector unsigned short)pixelsv2);
867
   pixelssum1 = vec_add(pixelssum1, vcone);
868

    
869
POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
870
   for (i = 0; i < h ; i++) {
871
     int rightside = ((unsigned long)block & 0x0000000F);
872
     blockv = vec_ld(0, block);
873

    
874
     temp1 = vec_ld(line_size, pixels);
875
     temp2 = vec_ld(line_size + 16, pixels);
876
     pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
877
     if (((((unsigned long)pixels) + line_size) & 0x0000000F) ==  0x0000000F)
878
     {
879
       pixelsv2 = temp2;
880
     }
881
     else
882
     {
883
       pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
884
     }
885

    
886
     pixelsv1 = vec_mergeh(vczero, pixelsv1);
887
     pixelsv2 = vec_mergeh(vczero, pixelsv2);
888
     pixelssum2 = vec_add((vector unsigned short)pixelsv1,
889
                          (vector unsigned short)pixelsv2);
890
     temp3 = vec_add(pixelssum1, pixelssum2);
891
     temp3 = vec_sra(temp3, vctwo);
892
     pixelssum1 = vec_add(pixelssum2, vcone);
893
     pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
894

    
895
     if (rightside)
896
     {
897
       blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
898
     }
899
     else
900
     {
901
       blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
902
     }
903

    
904
     vec_st(blockv, 0, block);
905

    
906
     block += line_size;
907
     pixels += line_size;
908
   }
909

    
910
POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
911
}
912

    
913
/* next one assumes that ((line_size % 16) == 0) */
914
void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
915
{
916
POWERPC_PERF_DECLARE(altivec_put_pixels16_xy2_num, 1);
917
   register int i;
918
   register vector unsigned char
919
     pixelsv1, pixelsv2, pixelsv3, pixelsv4;
920
   register vector unsigned char
921
     blockv, temp1, temp2;
922
   register vector unsigned short
923
     pixelssum1, pixelssum2, temp3,
924
     pixelssum3, pixelssum4, temp4;
925
   register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
926
   register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
927

    
928
POWERPC_PERF_START_COUNT(altivec_put_pixels16_xy2_num, 1);
929

    
930
   temp1 = vec_ld(0, pixels);
931
   temp2 = vec_ld(16, pixels);
932
   pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
933
   if ((((unsigned long)pixels) & 0x0000000F) ==  0x0000000F)
934
   {
935
     pixelsv2 = temp2;
936
   }
937
   else
938
   {
939
     pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
940
   }
941
   pixelsv3 = vec_mergel(vczero, pixelsv1);
942
   pixelsv4 = vec_mergel(vczero, pixelsv2);
943
   pixelsv1 = vec_mergeh(vczero, pixelsv1);
944
   pixelsv2 = vec_mergeh(vczero, pixelsv2);
945
   pixelssum3 = vec_add((vector unsigned short)pixelsv3,
946
                        (vector unsigned short)pixelsv4);
947
   pixelssum3 = vec_add(pixelssum3, vctwo);
948
   pixelssum1 = vec_add((vector unsigned short)pixelsv1,
949
                        (vector unsigned short)pixelsv2);
950
   pixelssum1 = vec_add(pixelssum1, vctwo);
951

    
952
   for (i = 0; i < h ; i++) {
953
     blockv = vec_ld(0, block);
954

    
955
     temp1 = vec_ld(line_size, pixels);
956
     temp2 = vec_ld(line_size + 16, pixels);
957
     pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
958
     if (((((unsigned long)pixels) + line_size) & 0x0000000F) ==  0x0000000F)
959
     {
960
       pixelsv2 = temp2;
961
     }
962
     else
963
     {
964
       pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
965
     }
966

    
967
     pixelsv3 = vec_mergel(vczero, pixelsv1);
968
     pixelsv4 = vec_mergel(vczero, pixelsv2);
969
     pixelsv1 = vec_mergeh(vczero, pixelsv1);
970
     pixelsv2 = vec_mergeh(vczero, pixelsv2);
971

    
972
     pixelssum4 = vec_add((vector unsigned short)pixelsv3,
973
                          (vector unsigned short)pixelsv4);
974
     pixelssum2 = vec_add((vector unsigned short)pixelsv1,
975
                          (vector unsigned short)pixelsv2);
976
     temp4 = vec_add(pixelssum3, pixelssum4);
977
     temp4 = vec_sra(temp4, vctwo);
978
     temp3 = vec_add(pixelssum1, pixelssum2);
979
     temp3 = vec_sra(temp3, vctwo);
980

    
981
     pixelssum3 = vec_add(pixelssum4, vctwo);
982
     pixelssum1 = vec_add(pixelssum2, vctwo);
983

    
984
     blockv = vec_packsu(temp3, temp4);
985

    
986
     vec_st(blockv, 0, block);
987

    
988
     block += line_size;
989
     pixels += line_size;
990
   }
991

    
992
POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_xy2_num, 1);
993
}
994

    
995
/* next one assumes that ((line_size % 16) == 0) */
996
void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
997
{
998
POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels16_xy2_num, 1);
999
   register int i;
1000
   register vector unsigned char
1001
     pixelsv1, pixelsv2, pixelsv3, pixelsv4;
1002
   register vector unsigned char
1003
     blockv, temp1, temp2;
1004
   register vector unsigned short
1005
     pixelssum1, pixelssum2, temp3,
1006
     pixelssum3, pixelssum4, temp4;
1007
   register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0);
1008
   register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1);
1009
   register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2);
1010

    
1011
POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
1012

    
1013
   temp1 = vec_ld(0, pixels);
1014
   temp2 = vec_ld(16, pixels);
1015
   pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
1016
   if ((((unsigned long)pixels) & 0x0000000F) ==  0x0000000F)
1017
   {
1018
     pixelsv2 = temp2;
1019
   }
1020
   else
1021
   {
1022
     pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
1023
   }
1024
   pixelsv3 = vec_mergel(vczero, pixelsv1);
1025
   pixelsv4 = vec_mergel(vczero, pixelsv2);
1026
   pixelsv1 = vec_mergeh(vczero, pixelsv1);
1027
   pixelsv2 = vec_mergeh(vczero, pixelsv2);
1028
   pixelssum3 = vec_add((vector unsigned short)pixelsv3,
1029
                        (vector unsigned short)pixelsv4);
1030
   pixelssum3 = vec_add(pixelssum3, vcone);
1031
   pixelssum1 = vec_add((vector unsigned short)pixelsv1,
1032
                        (vector unsigned short)pixelsv2);
1033
   pixelssum1 = vec_add(pixelssum1, vcone);
1034

    
1035
   for (i = 0; i < h ; i++) {
1036
     blockv = vec_ld(0, block);
1037

    
1038
     temp1 = vec_ld(line_size, pixels);
1039
     temp2 = vec_ld(line_size + 16, pixels);
1040
     pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
1041
     if (((((unsigned long)pixels) + line_size) & 0x0000000F) ==  0x0000000F)
1042
     {
1043
       pixelsv2 = temp2;
1044
     }
1045
     else
1046
     {
1047
       pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
1048
     }
1049

    
1050
     pixelsv3 = vec_mergel(vczero, pixelsv1);
1051
     pixelsv4 = vec_mergel(vczero, pixelsv2);
1052
     pixelsv1 = vec_mergeh(vczero, pixelsv1);
1053
     pixelsv2 = vec_mergeh(vczero, pixelsv2);
1054

    
1055
     pixelssum4 = vec_add((vector unsigned short)pixelsv3,
1056
                          (vector unsigned short)pixelsv4);
1057
     pixelssum2 = vec_add((vector unsigned short)pixelsv1,
1058
                          (vector unsigned short)pixelsv2);
1059
     temp4 = vec_add(pixelssum3, pixelssum4);
1060
     temp4 = vec_sra(temp4, vctwo);
1061
     temp3 = vec_add(pixelssum1, pixelssum2);
1062
     temp3 = vec_sra(temp3, vctwo);
1063

    
1064
     pixelssum3 = vec_add(pixelssum4, vcone);
1065
     pixelssum1 = vec_add(pixelssum2, vcone);
1066

    
1067
     blockv = vec_packsu(temp3, temp4);
1068

    
1069
     vec_st(blockv, 0, block);
1070

    
1071
     block += line_size;
1072
     pixels += line_size;
1073
   }
1074

    
1075
POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
1076
}
1077

    
1078
int hadamard8_diff8x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
1079
POWERPC_PERF_DECLARE(altivec_hadamard8_diff8x8_num, 1);
1080
    int sum;
1081
    register const_vector unsigned char vzero =
1082
                            (const_vector unsigned char)vec_splat_u8(0);
1083
    register vector signed short temp0, temp1, temp2, temp3, temp4,
1084
                                 temp5, temp6, temp7;
1085
POWERPC_PERF_START_COUNT(altivec_hadamard8_diff8x8_num, 1);
1086
  {
1087
    register const_vector signed short vprod1 =(const_vector signed short)
1088
                                        AVV( 1,-1, 1,-1, 1,-1, 1,-1);
1089
    register const_vector signed short vprod2 =(const_vector signed short)
1090
                                        AVV( 1, 1,-1,-1, 1, 1,-1,-1);
1091
    register const_vector signed short vprod3 =(const_vector signed short)
1092
                                        AVV( 1, 1, 1, 1,-1,-1,-1,-1);
1093
    register const_vector unsigned char perm1 = (const_vector unsigned char)
1094
      AVV(0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05,
1095
          0x0A, 0x0B, 0x08, 0x09, 0x0E, 0x0F, 0x0C, 0x0D);
1096
    register const_vector unsigned char perm2 = (const_vector unsigned char)
1097
      AVV(0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03,
1098
          0x0C, 0x0D, 0x0E, 0x0F, 0x08, 0x09, 0x0A, 0x0B);
1099
    register const_vector unsigned char perm3 = (const_vector unsigned char)
1100
      AVV(0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
1101
          0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07);
1102

    
1103
#define ONEITERBUTTERFLY(i, res)                                        \
1104
    {                                                                   \
1105
      register vector unsigned char src1, src2, srcO;                   \
1106
      register vector unsigned char dst1, dst2, dstO;                   \
1107
      register vector signed short srcV, dstV;                          \
1108
      register vector signed short but0, but1, but2, op1, op2, op3;     \
1109
      src1 = vec_ld(stride * i, src);                                   \
1110
      src2 = vec_ld((stride * i) + 15, src);                            \
1111
      srcO = vec_perm(src1, src2, vec_lvsl(stride * i, src));           \
1112
      dst1 = vec_ld(stride * i, dst);                                   \
1113
      dst2 = vec_ld((stride * i) + 15, dst);                            \
1114
      dstO = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst));           \
1115
      /* promote the unsigned chars to signed shorts */                 \
1116
      /* we're in the 8x8 function, we only care for the first 8 */     \
1117
      srcV =                                                            \
1118
        (vector signed short)vec_mergeh((vector signed char)vzero,      \
1119
        (vector signed char)srcO);                                      \
1120
      dstV =                                                            \
1121
        (vector signed short)vec_mergeh((vector signed char)vzero,      \
1122
        (vector signed char)dstO);                                      \
1123
      /* substractions inside the first butterfly */                    \
1124
      but0 = vec_sub(srcV, dstV);                                       \
1125
      op1 = vec_perm(but0, but0, perm1);                                \
1126
      but1 = vec_mladd(but0, vprod1, op1);                              \
1127
      op2 = vec_perm(but1, but1, perm2);                                \
1128
      but2 = vec_mladd(but1, vprod2, op2);                              \
1129
      op3 = vec_perm(but2, but2, perm3);                                \
1130
      res = vec_mladd(but2, vprod3, op3);                               \
1131
    }
1132
    ONEITERBUTTERFLY(0, temp0);
1133
    ONEITERBUTTERFLY(1, temp1);
1134
    ONEITERBUTTERFLY(2, temp2);
1135
    ONEITERBUTTERFLY(3, temp3);
1136
    ONEITERBUTTERFLY(4, temp4);
1137
    ONEITERBUTTERFLY(5, temp5);
1138
    ONEITERBUTTERFLY(6, temp6);
1139
    ONEITERBUTTERFLY(7, temp7);
1140
  }
1141
#undef ONEITERBUTTERFLY
1142
  {
1143
    register vector signed int vsum;
1144
    register vector signed short line0 = vec_add(temp0, temp1);
1145
    register vector signed short line1 = vec_sub(temp0, temp1);
1146
    register vector signed short line2 = vec_add(temp2, temp3);
1147
    register vector signed short line3 = vec_sub(temp2, temp3);
1148
    register vector signed short line4 = vec_add(temp4, temp5);
1149
    register vector signed short line5 = vec_sub(temp4, temp5);
1150
    register vector signed short line6 = vec_add(temp6, temp7);
1151
    register vector signed short line7 = vec_sub(temp6, temp7);
1152

    
1153
    register vector signed short line0B = vec_add(line0, line2);
1154
    register vector signed short line2B = vec_sub(line0, line2);
1155
    register vector signed short line1B = vec_add(line1, line3);
1156
    register vector signed short line3B = vec_sub(line1, line3);
1157
    register vector signed short line4B = vec_add(line4, line6);
1158
    register vector signed short line6B = vec_sub(line4, line6);
1159
    register vector signed short line5B = vec_add(line5, line7);
1160
    register vector signed short line7B = vec_sub(line5, line7);
1161

    
1162
    register vector signed short line0C = vec_add(line0B, line4B);
1163
    register vector signed short line4C = vec_sub(line0B, line4B);
1164
    register vector signed short line1C = vec_add(line1B, line5B);
1165
    register vector signed short line5C = vec_sub(line1B, line5B);
1166
    register vector signed short line2C = vec_add(line2B, line6B);
1167
    register vector signed short line6C = vec_sub(line2B, line6B);
1168
    register vector signed short line3C = vec_add(line3B, line7B);
1169
    register vector signed short line7C = vec_sub(line3B, line7B);
1170

    
1171
    vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0));
1172
    vsum = vec_sum4s(vec_abs(line1C), vsum);
1173
    vsum = vec_sum4s(vec_abs(line2C), vsum);
1174
    vsum = vec_sum4s(vec_abs(line3C), vsum);
1175
    vsum = vec_sum4s(vec_abs(line4C), vsum);
1176
    vsum = vec_sum4s(vec_abs(line5C), vsum);
1177
    vsum = vec_sum4s(vec_abs(line6C), vsum);
1178
    vsum = vec_sum4s(vec_abs(line7C), vsum);
1179
    vsum = vec_sums(vsum, (vector signed int)vzero);
1180
    vsum = vec_splat(vsum, 3);
1181
    vec_ste(vsum, 0, &sum);
1182
  }
1183
POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff8x8_num, 1);
1184
  return sum;
1185
}
1186

    
1187
/*
1188
  16x8 works with 16 elements ; it allows to avoid replicating
1189
  loads, and give the compiler more rooms for scheduling.
1190
  It's only used from inside hadamard8_diff16_altivec.
1191

1192
  Unfortunately, it seems gcc-3.3 is a bit dumb, and
1193
  the compiled code has a LOT of spill code, it seems
1194
  gcc (unlike xlc) cannot keep everything in registers
1195
  by itself. The following code include hand-made
1196
  registers allocation. It's not clean, but on
1197
  a 7450 the resulting code is much faster (best case
1198
  fall from 700+ cycles to 550).
1199

1200
  xlc doesn't add spill code, but it doesn't know how to
1201
  schedule for the 7450, and its code isn't much faster than
1202
  gcc-3.3 on the 7450 (but uses 25% less instructions...)
1203

1204
  On the 970, the hand-made RA is still a win (arount 690
1205
  vs. around 780), but xlc goes to around 660 on the
1206
  regular C code...
1207
*/
1208

    
1209
static int hadamard8_diff16x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h) {
1210
    int sum;
1211
    register vector signed short
1212
        temp0 REG_v(v0),
1213
        temp1 REG_v(v1),
1214
        temp2 REG_v(v2),
1215
        temp3 REG_v(v3),
1216
        temp4 REG_v(v4),
1217
        temp5 REG_v(v5),
1218
        temp6 REG_v(v6),
1219
        temp7 REG_v(v7);
1220
    register vector signed short
1221
        temp0S REG_v(v8),
1222
        temp1S REG_v(v9),
1223
        temp2S REG_v(v10),
1224
        temp3S REG_v(v11),
1225
        temp4S REG_v(v12),
1226
        temp5S REG_v(v13),
1227
        temp6S REG_v(v14),
1228
        temp7S REG_v(v15);
1229
    register const_vector unsigned char vzero REG_v(v31)=
1230
        (const_vector unsigned char)vec_splat_u8(0);
1231
  {
1232
    register const_vector signed short vprod1 REG_v(v16)=
1233
        (const_vector signed short)AVV( 1,-1, 1,-1, 1,-1, 1,-1);
1234
    register const_vector signed short vprod2 REG_v(v17)=
1235
        (const_vector signed short)AVV( 1, 1,-1,-1, 1, 1,-1,-1);
1236
    register const_vector signed short vprod3 REG_v(v18)=
1237
        (const_vector signed short)AVV( 1, 1, 1, 1,-1,-1,-1,-1);
1238
    register const_vector unsigned char perm1 REG_v(v19)=
1239
        (const_vector unsigned char)
1240
        AVV(0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05,
1241
            0x0A, 0x0B, 0x08, 0x09, 0x0E, 0x0F, 0x0C, 0x0D);
1242
    register const_vector unsigned char perm2 REG_v(v20)=
1243
        (const_vector unsigned char)
1244
        AVV(0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03,
1245
            0x0C, 0x0D, 0x0E, 0x0F, 0x08, 0x09, 0x0A, 0x0B);
1246
    register const_vector unsigned char perm3 REG_v(v21)=
1247
        (const_vector unsigned char)
1248
        AVV(0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
1249
            0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07);
1250

    
1251
#define ONEITERBUTTERFLY(i, res1, res2)                                 \
1252
    {                                                                   \
1253
      register vector unsigned char src1 REG_v(v22),                    \
1254
                                    src2 REG_v(v23),                    \
1255
                                    dst1 REG_v(v24),                    \
1256
                                    dst2 REG_v(v25),                    \
1257
                                    srcO REG_v(v22),                    \
1258
                                    dstO REG_v(v23);                    \
1259
                                                                        \
1260
      register vector signed short  srcV REG_v(v24),                    \
1261
                                    dstV REG_v(v25),                    \
1262
                                    srcW REG_v(v26),                    \
1263
                                    dstW REG_v(v27),                    \
1264
                                    but0 REG_v(v28),                    \
1265
                                    but0S REG_v(v29),                   \
1266
                                    op1 REG_v(v30),                     \
1267
                                    but1 REG_v(v22),                    \
1268
                                    op1S REG_v(v23),                    \
1269
                                    but1S REG_v(v24),                   \
1270
                                    op2 REG_v(v25),                     \
1271
                                    but2 REG_v(v26),                    \
1272
                                    op2S REG_v(v27),                    \
1273
                                    but2S REG_v(v28),                   \
1274
                                    op3 REG_v(v29),                     \
1275
                                    op3S REG_v(v30);                    \
1276
                                                                        \
1277
      src1 = vec_ld(stride * i, src);                                   \
1278
      src2 = vec_ld((stride * i) + 16, src);                            \
1279
      srcO = vec_perm(src1, src2, vec_lvsl(stride * i, src));           \
1280
      dst1 = vec_ld(stride * i, dst);                                   \
1281
      dst2 = vec_ld((stride * i) + 16, dst);                            \
1282
      dstO = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst));           \
1283
      /* promote the unsigned chars to signed shorts */                 \
1284
      srcV =                                                            \
1285
        (vector signed short)vec_mergeh((vector signed char)vzero,      \
1286
        (vector signed char)srcO);                                      \
1287
      dstV =                                                            \
1288
        (vector signed short)vec_mergeh((vector signed char)vzero,      \
1289
        (vector signed char)dstO);                                      \
1290
      srcW =                                                            \
1291
        (vector signed short)vec_mergel((vector signed char)vzero,      \
1292
        (vector signed char)srcO);                                      \
1293
      dstW =                                                            \
1294
        (vector signed short)vec_mergel((vector signed char)vzero,      \
1295
        (vector signed char)dstO);                                      \
1296
      /* substractions inside the first butterfly */                    \
1297
      but0 = vec_sub(srcV, dstV);                                       \
1298
      but0S = vec_sub(srcW, dstW);                                      \
1299
      op1 = vec_perm(but0, but0, perm1);                                \
1300
      but1 = vec_mladd(but0, vprod1, op1);                              \
1301
      op1S = vec_perm(but0S, but0S, perm1);                             \
1302
      but1S = vec_mladd(but0S, vprod1, op1S);                           \
1303
      op2 = vec_perm(but1, but1, perm2);                                \
1304
      but2 = vec_mladd(but1, vprod2, op2);                              \
1305
      op2S = vec_perm(but1S, but1S, perm2);                             \
1306
      but2S = vec_mladd(but1S, vprod2, op2S);                           \
1307
      op3 = vec_perm(but2, but2, perm3);                                \
1308
      res1 = vec_mladd(but2, vprod3, op3);                              \
1309
      op3S = vec_perm(but2S, but2S, perm3);                             \
1310
      res2 = vec_mladd(but2S, vprod3, op3S);                            \
1311
    }
1312
    ONEITERBUTTERFLY(0, temp0, temp0S);
1313
    ONEITERBUTTERFLY(1, temp1, temp1S);
1314
    ONEITERBUTTERFLY(2, temp2, temp2S);
1315
    ONEITERBUTTERFLY(3, temp3, temp3S);
1316
    ONEITERBUTTERFLY(4, temp4, temp4S);
1317
    ONEITERBUTTERFLY(5, temp5, temp5S);
1318
    ONEITERBUTTERFLY(6, temp6, temp6S);
1319
    ONEITERBUTTERFLY(7, temp7, temp7S);
1320
  }
1321
#undef ONEITERBUTTERFLY
1322
  {
1323
    register vector signed int vsum;
1324
    register vector signed short line0S, line1S, line2S, line3S, line4S,
1325
                                 line5S, line6S, line7S, line0BS,line2BS,
1326
                                 line1BS,line3BS,line4BS,line6BS,line5BS,
1327
                                 line7BS,line0CS,line4CS,line1CS,line5CS,
1328
                                 line2CS,line6CS,line3CS,line7CS;
1329

    
1330
    register vector signed short line0 = vec_add(temp0, temp1);
1331
    register vector signed short line1 = vec_sub(temp0, temp1);
1332
    register vector signed short line2 = vec_add(temp2, temp3);
1333
    register vector signed short line3 = vec_sub(temp2, temp3);
1334
    register vector signed short line4 = vec_add(temp4, temp5);
1335
    register vector signed short line5 = vec_sub(temp4, temp5);
1336
    register vector signed short line6 = vec_add(temp6, temp7);
1337
    register vector signed short line7 = vec_sub(temp6, temp7);
1338

    
1339
    register vector signed short line0B = vec_add(line0, line2);
1340
    register vector signed short line2B = vec_sub(line0, line2);
1341
    register vector signed short line1B = vec_add(line1, line3);
1342
    register vector signed short line3B = vec_sub(line1, line3);
1343
    register vector signed short line4B = vec_add(line4, line6);
1344
    register vector signed short line6B = vec_sub(line4, line6);
1345
    register vector signed short line5B = vec_add(line5, line7);
1346
    register vector signed short line7B = vec_sub(line5, line7);
1347

    
1348
    register vector signed short line0C = vec_add(line0B, line4B);
1349
    register vector signed short line4C = vec_sub(line0B, line4B);
1350
    register vector signed short line1C = vec_add(line1B, line5B);
1351
    register vector signed short line5C = vec_sub(line1B, line5B);
1352
    register vector signed short line2C = vec_add(line2B, line6B);
1353
    register vector signed short line6C = vec_sub(line2B, line6B);
1354
    register vector signed short line3C = vec_add(line3B, line7B);
1355
    register vector signed short line7C = vec_sub(line3B, line7B);
1356

    
1357
    vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0));
1358
    vsum = vec_sum4s(vec_abs(line1C), vsum);
1359
    vsum = vec_sum4s(vec_abs(line2C), vsum);
1360
    vsum = vec_sum4s(vec_abs(line3C), vsum);
1361
    vsum = vec_sum4s(vec_abs(line4C), vsum);
1362
    vsum = vec_sum4s(vec_abs(line5C), vsum);
1363
    vsum = vec_sum4s(vec_abs(line6C), vsum);
1364
    vsum = vec_sum4s(vec_abs(line7C), vsum);
1365

    
1366
    line0S = vec_add(temp0S, temp1S);
1367
    line1S = vec_sub(temp0S, temp1S);
1368
    line2S = vec_add(temp2S, temp3S);
1369
    line3S = vec_sub(temp2S, temp3S);
1370
    line4S = vec_add(temp4S, temp5S);
1371
    line5S = vec_sub(temp4S, temp5S);
1372
    line6S = vec_add(temp6S, temp7S);
1373
    line7S = vec_sub(temp6S, temp7S);
1374

    
1375
    line0BS = vec_add(line0S, line2S);
1376
    line2BS = vec_sub(line0S, line2S);
1377
    line1BS = vec_add(line1S, line3S);
1378
    line3BS = vec_sub(line1S, line3S);
1379
    line4BS = vec_add(line4S, line6S);
1380
    line6BS = vec_sub(line4S, line6S);
1381
    line5BS = vec_add(line5S, line7S);
1382
    line7BS = vec_sub(line5S, line7S);
1383

    
1384
    line0CS = vec_add(line0BS, line4BS);
1385
    line4CS = vec_sub(line0BS, line4BS);
1386
    line1CS = vec_add(line1BS, line5BS);
1387
    line5CS = vec_sub(line1BS, line5BS);
1388
    line2CS = vec_add(line2BS, line6BS);
1389
    line6CS = vec_sub(line2BS, line6BS);
1390
    line3CS = vec_add(line3BS, line7BS);
1391
    line7CS = vec_sub(line3BS, line7BS);
1392

    
1393
    vsum = vec_sum4s(vec_abs(line0CS), vsum);
1394
    vsum = vec_sum4s(vec_abs(line1CS), vsum);
1395
    vsum = vec_sum4s(vec_abs(line2CS), vsum);
1396
    vsum = vec_sum4s(vec_abs(line3CS), vsum);
1397
    vsum = vec_sum4s(vec_abs(line4CS), vsum);
1398
    vsum = vec_sum4s(vec_abs(line5CS), vsum);
1399
    vsum = vec_sum4s(vec_abs(line6CS), vsum);
1400
    vsum = vec_sum4s(vec_abs(line7CS), vsum);
1401
    vsum = vec_sums(vsum, (vector signed int)vzero);
1402
    vsum = vec_splat(vsum, 3);
1403
    vec_ste(vsum, 0, &sum);
1404
  }
1405
  return sum;
1406
}
1407

    
1408
int hadamard8_diff16_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
1409
POWERPC_PERF_DECLARE(altivec_hadamard8_diff16_num, 1);
1410
    int score;
1411
POWERPC_PERF_START_COUNT(altivec_hadamard8_diff16_num, 1);
1412
    score = hadamard8_diff16x8_altivec(s, dst, src, stride, 8);
1413
    if (h==16) {
1414
        dst += 8*stride;
1415
        src += 8*stride;
1416
        score += hadamard8_diff16x8_altivec(s, dst, src, stride, 8);
1417
    }
1418
POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff16_num, 1);
1419
    return score;
1420
}
1421

    
1422
int has_altivec(void)
1423
{
1424
#ifdef __AMIGAOS4__
1425
    ULONG result = 0;
1426
    extern struct ExecIFace *IExec;
1427

    
1428
    IExec->GetCPUInfoTags(GCIT_VectorUnit, &result, TAG_DONE);
1429
    if (result == VECTORTYPE_ALTIVEC) return 1;
1430
    return 0;
1431
#else /* __AMIGAOS4__ */
1432

    
1433
#ifdef CONFIG_DARWIN
1434
    int sels[2] = {CTL_HW, HW_VECTORUNIT};
1435
    int has_vu = 0;
1436
    size_t len = sizeof(has_vu);
1437
    int err;
1438

    
1439
    err = sysctl(sels, 2, &has_vu, &len, NULL, 0);
1440

    
1441
    if (err == 0) return (has_vu != 0);
1442
#else /* CONFIG_DARWIN */
1443
/* no Darwin, do it the brute-force way */
1444
/* this is borrowed from the libmpeg2 library */
1445
    {
1446
      signal (SIGILL, sigill_handler);
1447
      if (sigsetjmp (jmpbuf, 1)) {
1448
        signal (SIGILL, SIG_DFL);
1449
      } else {
1450
        canjump = 1;
1451

    
1452
        asm volatile ("mtspr 256, %0\n\t"
1453
                      "vand %%v0, %%v0, %%v0"
1454
                      :
1455
                      : "r" (-1));
1456

    
1457
        signal (SIGILL, SIG_DFL);
1458
        return 1;
1459
      }
1460
    }
1461
#endif /* CONFIG_DARWIN */
1462
    return 0;
1463
#endif /* __AMIGAOS4__ */
1464
}
1465

    
1466
static void vorbis_inverse_coupling_altivec(float *mag, float *ang,
1467
                                            int blocksize)
1468
{
1469
    int i;
1470
    vector float m, a;
1471
    vector bool int t0, t1;
1472
    const vector unsigned int v_31 = //XXX
1473
        vec_add(vec_add(vec_splat_u32(15),vec_splat_u32(15)),vec_splat_u32(1));
1474
    for(i=0; i<blocksize; i+=4) {
1475
        m = vec_ld(0, mag+i);
1476
        a = vec_ld(0, ang+i);
1477
        t0 = vec_cmple(m, (vector float)vec_splat_u32(0));
1478
        t1 = vec_cmple(a, (vector float)vec_splat_u32(0));
1479
        a = vec_xor(a, (vector float) vec_sl((vector unsigned int)t0, v_31));
1480
        t0 = (vector bool int)vec_and(a, t1);
1481
        t1 = (vector bool int)vec_andc(a, t1);
1482
        a = vec_sub(m, (vector float)t1);
1483
        m = vec_add(m, (vector float)t0);
1484
        vec_stl(a, 0, ang+i);
1485
        vec_stl(m, 0, mag+i);
1486
    }
1487
}
1488

    
1489
/* next one assumes that ((line_size % 8) == 0) */
1490
void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
1491
{
1492
POWERPC_PERF_DECLARE(altivec_avg_pixels8_xy2_num, 1);
1493
    register int i;
1494
    register vector unsigned char pixelsv1, pixelsv2, pixelsavg;
1495
    register vector unsigned char blockv, temp1, temp2, blocktemp;
1496
    register vector unsigned short pixelssum1, pixelssum2, temp3;
1497

    
1498
    register const_vector unsigned char vczero = (const_vector unsigned char)
1499
                                        vec_splat_u8(0);
1500
    register const_vector unsigned short vctwo = (const_vector unsigned short)
1501
                                        vec_splat_u16(2);
1502

    
1503
    temp1 = vec_ld(0, pixels);
1504
    temp2 = vec_ld(16, pixels);
1505
    pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
1506
    if ((((unsigned long)pixels) & 0x0000000F) ==  0x0000000F) {
1507
        pixelsv2 = temp2;
1508
    } else {
1509
        pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
1510
    }
1511
    pixelsv1 = vec_mergeh(vczero, pixelsv1);
1512
    pixelsv2 = vec_mergeh(vczero, pixelsv2);
1513
    pixelssum1 = vec_add((vector unsigned short)pixelsv1,
1514
                         (vector unsigned short)pixelsv2);
1515
    pixelssum1 = vec_add(pixelssum1, vctwo);
1516

    
1517
POWERPC_PERF_START_COUNT(altivec_avg_pixels8_xy2_num, 1);
1518
    for (i = 0; i < h ; i++) {
1519
        int rightside = ((unsigned long)block & 0x0000000F);
1520
        blockv = vec_ld(0, block);
1521

    
1522
        temp1 = vec_ld(line_size, pixels);
1523
        temp2 = vec_ld(line_size + 16, pixels);
1524
        pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
1525
        if (((((unsigned long)pixels) + line_size) & 0x0000000F) ==  0x0000000F)
1526
        {
1527
            pixelsv2 = temp2;
1528
        } else {
1529
            pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
1530
        }
1531

    
1532
        pixelsv1 = vec_mergeh(vczero, pixelsv1);
1533
        pixelsv2 = vec_mergeh(vczero, pixelsv2);
1534
        pixelssum2 = vec_add((vector unsigned short)pixelsv1,
1535
                             (vector unsigned short)pixelsv2);
1536
        temp3 = vec_add(pixelssum1, pixelssum2);
1537
        temp3 = vec_sra(temp3, vctwo);
1538
        pixelssum1 = vec_add(pixelssum2, vctwo);
1539
        pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
1540

    
1541
        if (rightside) {
1542
            blocktemp = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
1543
        } else {
1544
            blocktemp = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
1545
        }
1546

    
1547
        blockv = vec_avg(blocktemp, blockv);
1548
        vec_st(blockv, 0, block);
1549

    
1550
        block += line_size;
1551
        pixels += line_size;
1552
    }
1553

    
1554
POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_xy2_num, 1);
1555
}
1556

    
1557
void dsputil_init_altivec(DSPContext* c, AVCodecContext *avctx)
1558
{
1559
    c->pix_abs[0][1] = sad16_x2_altivec;
1560
    c->pix_abs[0][2] = sad16_y2_altivec;
1561
    c->pix_abs[0][3] = sad16_xy2_altivec;
1562
    c->pix_abs[0][0] = sad16_altivec;
1563
    c->pix_abs[1][0] = sad8_altivec;
1564
    c->sad[0]= sad16_altivec;
1565
    c->sad[1]= sad8_altivec;
1566
    c->pix_norm1 = pix_norm1_altivec;
1567
    c->sse[1]= sse8_altivec;
1568
    c->sse[0]= sse16_altivec;
1569
    c->pix_sum = pix_sum_altivec;
1570
    c->diff_pixels = diff_pixels_altivec;
1571
    c->get_pixels = get_pixels_altivec;
1572
    c->add_bytes= add_bytes_altivec;
1573
    c->put_pixels_tab[0][0] = put_pixels16_altivec;
1574
    /* the two functions do the same thing, so use the same code */
1575
    c->put_no_rnd_pixels_tab[0][0] = put_pixels16_altivec;
1576
    c->avg_pixels_tab[0][0] = avg_pixels16_altivec;
1577
    c->avg_pixels_tab[1][0] = avg_pixels8_altivec;
1578
    c->avg_pixels_tab[1][3] = avg_pixels8_xy2_altivec;
1579
    c->put_pixels_tab[1][3] = put_pixels8_xy2_altivec;
1580
    c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_altivec;
1581
    c->put_pixels_tab[0][3] = put_pixels16_xy2_altivec;
1582
    c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_altivec;
1583

    
1584
    c->hadamard8_diff[0] = hadamard8_diff16_altivec;
1585
    c->hadamard8_diff[1] = hadamard8_diff8x8_altivec;
1586
#ifdef CONFIG_VORBIS_DECODER
1587
    c->vorbis_inverse_coupling = vorbis_inverse_coupling_altivec;
1588
#endif
1589
}