465 lines
18 KiB
C
465 lines
18 KiB
C
/*
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* Copyright (c) 2002 Brian Foley
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* Copyright (c) 2002 Dieter Shirley
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* Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
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*
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* This 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 "config.h"
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#include "libavutil/cpu.h"
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#include "libavcodec/hpeldsp.h"
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#if HAVE_ALTIVEC
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#if HAVE_ALTIVEC_H
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#include <altivec.h>
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#endif
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#include "libavutil/ppc/types_altivec.h"
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#include "libavutil/ppc/util_altivec.h"
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#include "dsputil_altivec.h"
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/* next one assumes that ((line_size % 16) == 0) */
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void ff_put_pixels16_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
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{
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register vector unsigned char pixelsv1, pixelsv2;
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register vector unsigned char pixelsv1B, pixelsv2B;
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register vector unsigned char pixelsv1C, pixelsv2C;
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register vector unsigned char pixelsv1D, pixelsv2D;
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register vector unsigned char perm = vec_lvsl(0, pixels);
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int i;
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register ptrdiff_t line_size_2 = line_size << 1;
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register ptrdiff_t line_size_3 = line_size + line_size_2;
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register ptrdiff_t line_size_4 = line_size << 2;
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// hand-unrolling the loop by 4 gains about 15%
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// mininum execution time goes from 74 to 60 cycles
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// it's faster than -funroll-loops, but using
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// -funroll-loops w/ this is bad - 74 cycles again.
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// all this is on a 7450, tuning for the 7450
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for (i = 0; i < h; i += 4) {
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pixelsv1 = vec_ld( 0, pixels);
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pixelsv2 = vec_ld(15, pixels);
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pixelsv1B = vec_ld(line_size, pixels);
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pixelsv2B = vec_ld(15 + line_size, pixels);
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pixelsv1C = vec_ld(line_size_2, pixels);
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pixelsv2C = vec_ld(15 + line_size_2, pixels);
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pixelsv1D = vec_ld(line_size_3, pixels);
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pixelsv2D = vec_ld(15 + line_size_3, pixels);
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vec_st(vec_perm(pixelsv1, pixelsv2, perm),
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0, (unsigned char*)block);
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vec_st(vec_perm(pixelsv1B, pixelsv2B, perm),
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line_size, (unsigned char*)block);
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vec_st(vec_perm(pixelsv1C, pixelsv2C, perm),
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line_size_2, (unsigned char*)block);
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vec_st(vec_perm(pixelsv1D, pixelsv2D, perm),
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line_size_3, (unsigned char*)block);
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pixels+=line_size_4;
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block +=line_size_4;
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}
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}
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/* next one assumes that ((line_size % 16) == 0) */
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#define op_avg(a,b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) )
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void ff_avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
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{
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register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
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register vector unsigned char perm = vec_lvsl(0, pixels);
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int i;
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for (i = 0; i < h; i++) {
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pixelsv1 = vec_ld( 0, pixels);
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pixelsv2 = vec_ld(16,pixels);
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blockv = vec_ld(0, block);
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pixelsv = vec_perm(pixelsv1, pixelsv2, perm);
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blockv = vec_avg(blockv,pixelsv);
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vec_st(blockv, 0, (unsigned char*)block);
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pixels+=line_size;
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block +=line_size;
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}
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}
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/* next one assumes that ((line_size % 8) == 0) */
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static void avg_pixels8_altivec(uint8_t * block, const uint8_t * pixels, ptrdiff_t line_size, int h)
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{
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register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
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int i;
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for (i = 0; i < h; i++) {
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/* block is 8 bytes-aligned, so we're either in the
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left block (16 bytes-aligned) or in the right block (not) */
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int rightside = ((unsigned long)block & 0x0000000F);
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blockv = vec_ld(0, block);
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pixelsv1 = vec_ld( 0, pixels);
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pixelsv2 = vec_ld(16, pixels);
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pixelsv = vec_perm(pixelsv1, pixelsv2, vec_lvsl(0, pixels));
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if (rightside) {
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pixelsv = vec_perm(blockv, pixelsv, vcprm(0,1,s0,s1));
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} else {
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pixelsv = vec_perm(blockv, pixelsv, vcprm(s0,s1,2,3));
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}
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blockv = vec_avg(blockv, pixelsv);
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vec_st(blockv, 0, block);
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pixels += line_size;
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block += line_size;
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}
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}
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/* next one assumes that ((line_size % 8) == 0) */
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static void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
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{
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register int i;
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register vector unsigned char pixelsv1, pixelsv2, pixelsavg;
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register vector unsigned char blockv, temp1, temp2;
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register vector unsigned short pixelssum1, pixelssum2, temp3;
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register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0);
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register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2);
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temp1 = vec_ld(0, pixels);
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temp2 = vec_ld(16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
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if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
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}
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum1 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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pixelssum1 = vec_add(pixelssum1, vctwo);
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for (i = 0; i < h ; i++) {
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int rightside = ((unsigned long)block & 0x0000000F);
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blockv = vec_ld(0, block);
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temp1 = vec_ld(line_size, pixels);
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temp2 = vec_ld(line_size + 16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
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if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
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}
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum2 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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temp3 = vec_add(pixelssum1, pixelssum2);
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temp3 = vec_sra(temp3, vctwo);
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pixelssum1 = vec_add(pixelssum2, vctwo);
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pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
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if (rightside) {
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blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
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} else {
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blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
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}
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vec_st(blockv, 0, block);
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block += line_size;
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pixels += line_size;
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}
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}
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/* next one assumes that ((line_size % 8) == 0) */
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static void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
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{
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register int i;
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register vector unsigned char pixelsv1, pixelsv2, pixelsavg;
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register vector unsigned char blockv, temp1, temp2;
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register vector unsigned short pixelssum1, pixelssum2, temp3;
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register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0);
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register const vector unsigned short vcone = (const vector unsigned short)vec_splat_u16(1);
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register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2);
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temp1 = vec_ld(0, pixels);
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temp2 = vec_ld(16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
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if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
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}
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum1 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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pixelssum1 = vec_add(pixelssum1, vcone);
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for (i = 0; i < h ; i++) {
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int rightside = ((unsigned long)block & 0x0000000F);
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blockv = vec_ld(0, block);
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temp1 = vec_ld(line_size, pixels);
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temp2 = vec_ld(line_size + 16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
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if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
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}
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum2 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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temp3 = vec_add(pixelssum1, pixelssum2);
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temp3 = vec_sra(temp3, vctwo);
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pixelssum1 = vec_add(pixelssum2, vcone);
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pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero);
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if (rightside) {
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blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
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} else {
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blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
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}
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vec_st(blockv, 0, block);
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block += line_size;
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pixels += line_size;
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}
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}
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/* next one assumes that ((line_size % 16) == 0) */
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static void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, ptrdiff_t line_size, int h)
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{
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register int i;
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register vector unsigned char pixelsv1, pixelsv2, pixelsv3, pixelsv4;
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register vector unsigned char blockv, temp1, temp2;
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register vector unsigned short temp3, temp4,
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pixelssum1, pixelssum2, pixelssum3, pixelssum4;
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register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0);
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register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2);
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temp1 = vec_ld(0, pixels);
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temp2 = vec_ld(16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
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if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
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}
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pixelsv3 = vec_mergel(vczero, pixelsv1);
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pixelsv4 = vec_mergel(vczero, pixelsv2);
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum3 = vec_add((vector unsigned short)pixelsv3,
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(vector unsigned short)pixelsv4);
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pixelssum3 = vec_add(pixelssum3, vctwo);
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pixelssum1 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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pixelssum1 = vec_add(pixelssum1, vctwo);
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for (i = 0; i < h ; i++) {
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blockv = vec_ld(0, block);
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temp1 = vec_ld(line_size, pixels);
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temp2 = vec_ld(line_size + 16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
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if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
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}
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pixelsv3 = vec_mergel(vczero, pixelsv1);
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pixelsv4 = vec_mergel(vczero, pixelsv2);
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum4 = vec_add((vector unsigned short)pixelsv3,
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(vector unsigned short)pixelsv4);
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pixelssum2 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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temp4 = vec_add(pixelssum3, pixelssum4);
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temp4 = vec_sra(temp4, vctwo);
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temp3 = vec_add(pixelssum1, pixelssum2);
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temp3 = vec_sra(temp3, vctwo);
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pixelssum3 = vec_add(pixelssum4, vctwo);
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pixelssum1 = vec_add(pixelssum2, vctwo);
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blockv = vec_packsu(temp3, temp4);
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vec_st(blockv, 0, block);
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block += line_size;
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pixels += line_size;
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}
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}
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/* next one assumes that ((line_size % 16) == 0) */
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static void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, ptrdiff_t line_size, int h)
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{
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register int i;
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register vector unsigned char pixelsv1, pixelsv2, pixelsv3, pixelsv4;
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register vector unsigned char blockv, temp1, temp2;
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register vector unsigned short temp3, temp4,
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pixelssum1, pixelssum2, pixelssum3, pixelssum4;
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register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0);
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register const vector unsigned short vcone = (const vector unsigned short)vec_splat_u16(1);
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register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2);
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temp1 = vec_ld(0, pixels);
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temp2 = vec_ld(16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
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if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
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}
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pixelsv3 = vec_mergel(vczero, pixelsv1);
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pixelsv4 = vec_mergel(vczero, pixelsv2);
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum3 = vec_add((vector unsigned short)pixelsv3,
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(vector unsigned short)pixelsv4);
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pixelssum3 = vec_add(pixelssum3, vcone);
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pixelssum1 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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pixelssum1 = vec_add(pixelssum1, vcone);
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for (i = 0; i < h ; i++) {
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blockv = vec_ld(0, block);
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temp1 = vec_ld(line_size, pixels);
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temp2 = vec_ld(line_size + 16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels));
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if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels));
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}
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pixelsv3 = vec_mergel(vczero, pixelsv1);
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pixelsv4 = vec_mergel(vczero, pixelsv2);
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum4 = vec_add((vector unsigned short)pixelsv3,
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(vector unsigned short)pixelsv4);
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pixelssum2 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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temp4 = vec_add(pixelssum3, pixelssum4);
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temp4 = vec_sra(temp4, vctwo);
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temp3 = vec_add(pixelssum1, pixelssum2);
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temp3 = vec_sra(temp3, vctwo);
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pixelssum3 = vec_add(pixelssum4, vcone);
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pixelssum1 = vec_add(pixelssum2, vcone);
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blockv = vec_packsu(temp3, temp4);
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vec_st(blockv, 0, block);
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block += line_size;
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pixels += line_size;
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}
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}
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/* next one assumes that ((line_size % 8) == 0) */
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static void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
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{
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register int i;
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register vector unsigned char pixelsv1, pixelsv2, pixelsavg;
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register vector unsigned char blockv, temp1, temp2, blocktemp;
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register vector unsigned short pixelssum1, pixelssum2, temp3;
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register const vector unsigned char vczero = (const vector unsigned char)
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vec_splat_u8(0);
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register const vector unsigned short vctwo = (const vector unsigned short)
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vec_splat_u16(2);
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temp1 = vec_ld(0, pixels);
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temp2 = vec_ld(16, pixels);
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pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels));
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if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) {
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pixelsv2 = temp2;
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} else {
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pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels));
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}
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pixelsv1 = vec_mergeh(vczero, pixelsv1);
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pixelsv2 = vec_mergeh(vczero, pixelsv2);
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pixelssum1 = vec_add((vector unsigned short)pixelsv1,
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(vector unsigned short)pixelsv2);
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pixelssum1 = vec_add(pixelssum1, vctwo);
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for (i = 0; i < h ; i++) {
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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) {
|
|
blocktemp = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1));
|
|
} else {
|
|
blocktemp = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3));
|
|
}
|
|
|
|
blockv = vec_avg(blocktemp, blockv);
|
|
vec_st(blockv, 0, block);
|
|
|
|
block += line_size;
|
|
pixels += line_size;
|
|
}
|
|
}
|
|
#endif /* HAVE_ALTIVEC */
|
|
|
|
void ff_hpeldsp_init_ppc(HpelDSPContext* c, int flags)
|
|
{
|
|
#if HAVE_ALTIVEC
|
|
int mm_flags = av_get_cpu_flags();
|
|
|
|
if (mm_flags & AV_CPU_FLAG_ALTIVEC) {
|
|
c->put_pixels_tab[0][0] = ff_put_pixels16_altivec;
|
|
c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_altivec;
|
|
c->avg_pixels_tab[0][0] = ff_avg_pixels16_altivec;
|
|
c->avg_pixels_tab[1][0] = avg_pixels8_altivec;
|
|
c->avg_pixels_tab[1][3] = avg_pixels8_xy2_altivec;
|
|
c->put_pixels_tab[1][3] = put_pixels8_xy2_altivec;
|
|
c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_altivec;
|
|
c->put_pixels_tab[0][3] = put_pixels16_xy2_altivec;
|
|
c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_altivec;
|
|
}
|
|
#endif /* HAVE_ALTIVEC */
|
|
}
|