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1312 lines
44 KiB
1312 lines
44 KiB
/* |
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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 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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|
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#include "../dsputil.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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|
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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 pix_abs16x16_x2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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const vector unsigned char zero = (const vector unsigned char)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<16;i++) { |
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/* |
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Read unaligned pixels into our vectors. The vectors are as follows: |
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pix1v: pix1[0]-pix1[15] |
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pix2v: pix2[0]-pix2[15] pix2iv: pix2[1]-pix2[16] |
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*/ |
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tv = (vector unsigned char *) pix1; |
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pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1)); |
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tv = (vector unsigned char *) &pix2[0]; |
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pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0])); |
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tv = (vector unsigned char *) &pix2[1]; |
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pix2iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[1])); |
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/* Calculate the average vector */ |
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avgv = vec_avg(pix2v, pix2iv); |
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/* Calculate a sum of abs differences vector */ |
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t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv)); |
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/* Add each 4 pixel group together and put 4 results into sad */ |
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sad = vec_sum4s(t5, sad); |
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pix1 += line_size; |
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pix2 += line_size; |
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} |
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/* Sum up the four partial sums, and put the result into s */ |
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); |
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sumdiffs = vec_splat(sumdiffs, 3); |
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vec_ste(sumdiffs, 0, &s); |
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return s; |
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} |
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int pix_abs16x16_y2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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const vector unsigned char zero = (const vector unsigned char)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<16;i++) { |
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/* |
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Read unaligned pixels into our vectors. The vectors are as follows: |
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pix1v: pix1[0]-pix1[15] |
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pix3v: pix3[0]-pix3[15] |
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*/ |
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tv = (vector unsigned char *) pix1; |
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pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1)); |
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tv = (vector unsigned char *) &pix3[0]; |
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pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0])); |
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/* Calculate the average vector */ |
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avgv = vec_avg(pix2v, pix3v); |
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/* Calculate a sum of abs differences vector */ |
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t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv)); |
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/* Add each 4 pixel group together and put 4 results into sad */ |
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sad = vec_sum4s(t5, sad); |
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pix1 += line_size; |
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pix2v = pix3v; |
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pix3 += line_size; |
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} |
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/* Sum up the four partial sums, and put the result into s */ |
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); |
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sumdiffs = vec_splat(sumdiffs, 3); |
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vec_ste(sumdiffs, 0, &s); |
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return s; |
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} |
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int pix_abs16x16_xy2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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uint8_t *pix3 = pix2 + line_size; |
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const vector unsigned char zero = (const vector unsigned char)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<16;i++) { |
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/* |
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Read unaligned pixels into our vectors. The vectors are as follows: |
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pix1v: pix1[0]-pix1[15] |
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pix3v: pix3[0]-pix3[15] pix3iv: pix3[1]-pix3[16] |
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*/ |
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tv = (vector unsigned char *) pix1; |
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pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1)); |
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tv = (vector unsigned char *) &pix3[0]; |
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pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0])); |
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tv = (vector unsigned char *) &pix3[1]; |
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pix3iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[1])); |
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/* |
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Note that Altivec does have vec_avg, but this works on vector pairs |
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and rounds up. We could do avg(avg(a,b),avg(c,d)), but the rounding |
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would mean that, for example, avg(3,0,0,1) = 2, when it should be 1. |
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Instead, we have to split the pixel vectors into vectors of shorts, |
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and do the averaging by hand. |
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*/ |
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/* Split the pixel vectors into shorts */ |
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pix3hv = (vector unsigned short) vec_mergeh(zero, pix3v); |
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pix3lv = (vector unsigned short) vec_mergel(zero, pix3v); |
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pix3ihv = (vector unsigned short) vec_mergeh(zero, pix3iv); |
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pix3ilv = (vector unsigned short) vec_mergel(zero, pix3iv); |
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/* Do the averaging on them */ |
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t3 = vec_add(pix3hv, pix3ihv); |
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t4 = vec_add(pix3lv, pix3ilv); |
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avghv = vec_sr(vec_add(vec_add(t1, t3), two), two); |
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avglv = vec_sr(vec_add(vec_add(t2, t4), two), two); |
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/* Pack the shorts back into a result */ |
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avgv = vec_pack(avghv, avglv); |
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/* Calculate a sum of abs differences vector */ |
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t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv)); |
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/* Add each 4 pixel group together and put 4 results into sad */ |
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sad = vec_sum4s(t5, sad); |
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pix1 += line_size; |
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pix3 += line_size; |
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/* Transfer the calculated values for pix3 into pix2 */ |
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t1 = t3; |
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t2 = t4; |
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} |
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/* Sum up the four partial sums, and put the result into s */ |
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); |
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sumdiffs = vec_splat(sumdiffs, 3); |
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vec_ste(sumdiffs, 0, &s); |
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return s; |
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} |
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int pix_abs16x16_altivec(uint8_t *pix1, uint8_t *pix2, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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const vector unsigned int zero = (const vector unsigned int)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<16;i++) { |
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/* Read potentially unaligned pixels into t1 and t2 */ |
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perm1 = vec_lvsl(0, pix1); |
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pix1v = (vector unsigned char *) pix1; |
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perm2 = vec_lvsl(0, pix2); |
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pix2v = (vector unsigned char *) pix2; |
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t1 = vec_perm(pix1v[0], pix1v[1], perm1); |
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t2 = vec_perm(pix2v[0], pix2v[1], perm2); |
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/* Calculate a sum of abs differences vector */ |
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t3 = vec_max(t1, t2); |
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t4 = vec_min(t1, t2); |
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t5 = vec_sub(t3, t4); |
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/* Add each 4 pixel group together and put 4 results into sad */ |
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sad = vec_sum4s(t5, sad); |
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pix1 += line_size; |
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pix2 += line_size; |
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} |
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/* Sum up the four partial sums, and put the result into s */ |
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); |
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sumdiffs = vec_splat(sumdiffs, 3); |
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vec_ste(sumdiffs, 0, &s); |
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return s; |
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} |
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int pix_abs8x8_altivec(uint8_t *pix1, uint8_t *pix2, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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const vector unsigned int zero = (const vector unsigned int)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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#ifdef CONFIG_DARWIN |
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permclear = (vector unsigned char)(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0); |
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#else |
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permclear = (vector unsigned char){255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0}; |
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#endif |
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for(i=0;i<8;i++) { |
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/* Read potentially unaligned pixels into t1 and t2 |
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Since we're reading 16 pixels, and actually only want 8, |
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mask out the last 8 pixels. The 0s don't change the sum. */ |
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perm1 = vec_lvsl(0, pix1); |
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pix1v = (vector unsigned char *) pix1; |
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perm2 = vec_lvsl(0, pix2); |
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pix2v = (vector unsigned char *) pix2; |
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t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear); |
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t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear); |
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/* Calculate a sum of abs differences vector */ |
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t3 = vec_max(t1, t2); |
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t4 = vec_min(t1, t2); |
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t5 = vec_sub(t3, t4); |
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/* Add each 4 pixel group together and put 4 results into sad */ |
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sad = vec_sum4s(t5, sad); |
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pix1 += line_size; |
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pix2 += line_size; |
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} |
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/* Sum up the four partial sums, and put the result into s */ |
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); |
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sumdiffs = vec_splat(sumdiffs, 3); |
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vec_ste(sumdiffs, 0, &s); |
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return s; |
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} |
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int pix_norm1_altivec(uint8_t *pix, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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const vector unsigned int zero = (const vector unsigned int)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 pix_abs8x8_altivec code above w/ squaring added. |
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*/ |
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int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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const vector unsigned int zero = (const vector unsigned int)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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#ifdef CONFIG_DARWIN |
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permclear = (vector unsigned char)(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0); |
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#else |
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permclear = (vector unsigned char){255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0}; |
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#endif |
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for(i=0;i<8;i++) { |
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/* Read potentially unaligned pixels into t1 and t2 |
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Since we're reading 16 pixels, and actually only want 8, |
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mask out the last 8 pixels. The 0s don't change the sum. */ |
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perm1 = vec_lvsl(0, pix1); |
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pix1v = (vector unsigned char *) pix1; |
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perm2 = vec_lvsl(0, pix2); |
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pix2v = (vector unsigned char *) pix2; |
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t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear); |
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t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear); |
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|
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/* |
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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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|
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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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|
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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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/** |
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* Sum of Squared Errors for a 16x16 block. |
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* AltiVec-enhanced. |
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* It's the pix_abs16x16_altivec code above w/ squaring added. |
|
*/ |
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int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size) |
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{ |
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int i; |
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int s __attribute__((aligned(16))); |
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const vector unsigned int zero = (const vector unsigned int)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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|
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sum = (vector unsigned int)vec_splat_u32(0); |
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|
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for(i=0;i<16;i++) { |
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/* Read potentially unaligned pixels into t1 and t2 */ |
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perm1 = vec_lvsl(0, pix1); |
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pix1v = (vector unsigned char *) pix1; |
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perm2 = vec_lvsl(0, pix2); |
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pix2v = (vector unsigned char *) pix2; |
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t1 = vec_perm(pix1v[0], pix1v[1], perm1); |
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t2 = vec_perm(pix2v[0], pix2v[1], perm2); |
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|
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/* |
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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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|
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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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|
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pix1 += line_size; |
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pix2 += line_size; |
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} |
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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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|
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return s; |
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} |
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|
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int pix_sum_altivec(uint8_t * pix, int line_size) |
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{ |
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const vector unsigned int zero = (const vector unsigned int)vec_splat_u32(0); |
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vector unsigned char perm, *pixv; |
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vector unsigned char t1; |
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vector unsigned int sad; |
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vector signed int sumdiffs; |
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|
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int i; |
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int s __attribute__((aligned(16))); |
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|
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sad = (vector unsigned int)vec_splat_u32(0); |
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|
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for (i = 0; i < 16; i++) { |
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/* 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; |
|
} |
|
} |
|
|
|
int sad16x16_altivec(void *s, uint8_t *a, uint8_t *b, int stride) { |
|
return pix_abs16x16_altivec(a,b,stride); |
|
} |
|
|
|
int sad8x8_altivec(void *s, uint8_t *a, uint8_t *b, int stride) { |
|
return pix_abs8x8_altivec(a,b,stride); |
|
} |
|
|
|
void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w) { |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int i; |
|
for(i=0; i+7<w; i++){ |
|
dst[i+0] += src[i+0]; |
|
dst[i+1] += src[i+1]; |
|
dst[i+2] += src[i+2]; |
|
dst[i+3] += src[i+3]; |
|
dst[i+4] += src[i+4]; |
|
dst[i+5] += src[i+5]; |
|
dst[i+6] += src[i+6]; |
|
dst[i+7] += src[i+7]; |
|
} |
|
for(; i<w; i++) |
|
dst[i+0] += src[i+0]; |
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */ |
|
register int i; |
|
register vector unsigned char vdst, vsrc; |
|
|
|
/* dst and src are 16 bytes-aligned (guaranteed) */ |
|
for(i = 0 ; (i + 15) < w ; i++) |
|
{ |
|
vdst = vec_ld(i << 4, (unsigned char*)dst); |
|
vsrc = vec_ld(i << 4, (unsigned char*)src); |
|
vdst = vec_add(vsrc, vdst); |
|
vec_st(vdst, i << 4, (unsigned char*)dst); |
|
} |
|
/* if w is not a multiple of 16 */ |
|
for (; (i < w) ; i++) |
|
{ |
|
dst[i] = src[i]; |
|
} |
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */ |
|
} |
|
|
|
/* 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_TBL_DECLARE(altivec_put_pixels16_num, 1); |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int i; |
|
|
|
POWERPC_TBL_START_COUNT(altivec_put_pixels16_num, 1); |
|
|
|
for(i=0; i<h; i++) { |
|
*((uint32_t*)(block )) = (((const struct unaligned_32 *) (pixels))->l); |
|
*((uint32_t*)(block+4)) = (((const struct unaligned_32 *) (pixels+4))->l); |
|
*((uint32_t*)(block+8)) = (((const struct unaligned_32 *) (pixels+8))->l); |
|
*((uint32_t*)(block+12)) = (((const struct unaligned_32 *) (pixels+12))->l); |
|
pixels+=line_size; |
|
block +=line_size; |
|
} |
|
|
|
POWERPC_TBL_STOP_COUNT(altivec_put_pixels16_num, 1); |
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */ |
|
register vector unsigned char pixelsv1, pixelsv2; |
|
register vector unsigned char perm = vec_lvsl(0, pixels); |
|
int i; |
|
|
|
POWERPC_TBL_START_COUNT(altivec_put_pixels16_num, 1); |
|
|
|
for(i=0; i<h; i++) { |
|
pixelsv1 = vec_ld(0, (unsigned char*)pixels); |
|
pixelsv2 = vec_ld(16, (unsigned char*)pixels); |
|
vec_st(vec_perm(pixelsv1, pixelsv2, perm), |
|
0, (unsigned char*)block); |
|
pixels+=line_size; |
|
block +=line_size; |
|
} |
|
|
|
POWERPC_TBL_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_TBL_DECLARE(altivec_avg_pixels16_num, 1); |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int i; |
|
|
|
POWERPC_TBL_START_COUNT(altivec_avg_pixels16_num, 1); |
|
|
|
for(i=0; i<h; i++) { |
|
op_avg(*((uint32_t*)(block)),(((const struct unaligned_32 *)(pixels))->l)); |
|
op_avg(*((uint32_t*)(block+4)),(((const struct unaligned_32 *)(pixels+4))->l)); |
|
op_avg(*((uint32_t*)(block+8)),(((const struct unaligned_32 *)(pixels+8))->l)); |
|
op_avg(*((uint32_t*)(block+12)),(((const struct unaligned_32 *)(pixels+12))->l)); |
|
pixels+=line_size; |
|
block +=line_size; |
|
} |
|
|
|
POWERPC_TBL_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_TBL_START_COUNT(altivec_avg_pixels16_num, 1); |
|
|
|
for(i=0; i<h; i++) { |
|
pixelsv1 = vec_ld(0, (unsigned char*)pixels); |
|
pixelsv2 = vec_ld(16, (unsigned char*)pixels); |
|
blockv = vec_ld(0, block); |
|
pixelsv = vec_perm(pixelsv1, pixelsv2, perm); |
|
blockv = vec_avg(blockv,pixelsv); |
|
vec_st(blockv, 0, (unsigned char*)block); |
|
pixels+=line_size; |
|
block +=line_size; |
|
} |
|
|
|
POWERPC_TBL_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_TBL_DECLARE(altivec_avg_pixels8_num, 1); |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int i; |
|
POWERPC_TBL_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_TBL_STOP_COUNT(altivec_avg_pixels8_num, 1); |
|
|
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */ |
|
register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv; |
|
int i; |
|
|
|
POWERPC_TBL_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_TBL_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_TBL_DECLARE(altivec_put_pixels8_xy2_num, 1); |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int j; |
|
POWERPC_TBL_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_TBL_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_TBL_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_TBL_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_TBL_DECLARE(altivec_put_no_rnd_pixels8_xy2_num, 1); |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int j; |
|
POWERPC_TBL_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_TBL_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_TBL_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_TBL_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_TBL_DECLARE(altivec_put_pixels16_xy2_num, 1); |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int j; |
|
POWERPC_TBL_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_TBL_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); |
|
|
|
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); |
|
|
|
POWERPC_TBL_START_COUNT(altivec_put_pixels16_xy2_num, 1); |
|
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_TBL_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_TBL_DECLARE(altivec_put_no_rnd_pixels16_xy2_num, 1); |
|
#ifdef ALTIVEC_USE_REFERENCE_C_CODE |
|
int j; |
|
POWERPC_TBL_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_TBL_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); |
|
|
|
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); |
|
|
|
POWERPC_TBL_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1); |
|
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_TBL_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1); |
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */ |
|
} |
|
|
|
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; |
|
}
|
|
|