repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2002 Brian Foley | |
| 3 | * Copyright (c) 2002 Dieter Shirley | |
| 4 | * Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org> | |
| 5 | * | |
| 6 | * This file is part of FFmpeg. | |
| 7 | * | |
| 8 | * FFmpeg is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU Lesser General Public | |
| 10 | * License as published by the Free Software Foundation; either | |
| 11 | * version 2.1 of the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * FFmpeg is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | * Lesser General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU Lesser General Public | |
| 19 | * License along with FFmpeg; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 21 | */ | |
| 22 | ||
| 23 | #include "config.h" | |
| 24 | #if HAVE_ALTIVEC_H | |
| 25 | #include <altivec.h> | |
| 26 | #endif | |
| 27 | ||
| 28 | #include "libavutil/attributes.h" | |
| 29 | #include "libavutil/cpu.h" | |
| 30 | #include "libavutil/ppc/cpu.h" | |
| 31 | #include "libavutil/ppc/types_altivec.h" | |
| 32 | #include "libavutil/ppc/util_altivec.h" | |
| 33 | #include "libavcodec/huffyuvdsp.h" | |
| 34 | ||
| 35 | #if HAVE_ALTIVEC | |
| 36 | static void add_bytes_altivec(uint8_t *dst, uint8_t *src, intptr_t w) | |
| 37 | { | |
| 38 | register int i; | |
| 39 | register vector unsigned char vdst, vsrc; | |
| 40 | ||
| 41 | /* dst and src are 16 bytes-aligned (guaranteed). */ | |
| 42 | for (i = 0; i + 15 < w; i += 16) { | |
| 43 | vdst = vec_ld(i, (unsigned char *) dst); | |
| 44 | vsrc = vec_ld(i, (unsigned char *) src); | |
| 45 | vdst = vec_add(vsrc, vdst); | |
| 46 | vec_st(vdst, i, (unsigned char *) dst); | |
| 47 | } | |
| 48 | /* If w is not a multiple of 16. */ | |
| 49 | for (; i < w; i++) | |
| 50 | dst[i] = src[i]; | |
| 51 | } | |
| 52 | #endif /* HAVE_ALTIVEC */ | |
| 53 | ||
| 54 | av_cold void ff_huffyuvdsp_init_ppc(HuffYUVDSPContext *c) | |
| 55 | { | |
| 56 | #if HAVE_ALTIVEC | |
| 57 | if (!PPC_ALTIVEC(av_get_cpu_flags())) | |
| 58 | return; | |
| 59 | ||
| 60 | c->add_bytes = add_bytes_altivec; | |
| 61 | #endif /* HAVE_ALTIVEC */ | |
| 62 | } |