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author | Luca Barbato <lu_zero@gentoo.org> | 2007-04-10 09:47:37 +0000 |
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committer | Luca Barbato <lu_zero@gentoo.org> | 2007-04-10 09:47:37 +0000 |
commit | 1f1aadc37c80e16c79fbddc260fcd8006ba90b96 (patch) | |
tree | af389380193b97b391ee02d0c22e084d1b6dd084 /libavcodec/ppc | |
parent | 6db140ddb4202e603efb5e2c81575d38d5f406f1 (diff) | |
download | ffmpeg-streaming-1f1aadc37c80e16c79fbddc260fcd8006ba90b96.zip ffmpeg-streaming-1f1aadc37c80e16c79fbddc260fcd8006ba90b96.tar.gz |
ssd_int8_vs_int16_altivec, not completely benchmarkedwith svq1
Originally committed as revision 8706 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ppc')
-rw-r--r-- | libavcodec/ppc/dsputil_ppc.c | 2 | ||||
-rw-r--r-- | libavcodec/ppc/int_altivec.c | 79 |
2 files changed, 81 insertions, 0 deletions
diff --git a/libavcodec/ppc/dsputil_ppc.c b/libavcodec/ppc/dsputil_ppc.c index 117a7ad..4d5e289 100644 --- a/libavcodec/ppc/dsputil_ppc.c +++ b/libavcodec/ppc/dsputil_ppc.c @@ -39,6 +39,7 @@ void dsputil_init_altivec(DSPContext* c, AVCodecContext *avctx); void vc1dsp_init_altivec(DSPContext* c, AVCodecContext *avctx); void snow_init_altivec(DSPContext* c, AVCodecContext *avctx); void float_init_altivec(DSPContext* c, AVCodecContext *avctx); +void int_init_altivec(DSPContext* c, AVCodecContext *avctx); #endif @@ -284,6 +285,7 @@ void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx) if(ENABLE_VC1_DECODER || ENABLE_WMV3_DECODER) vc1dsp_init_altivec(c, avctx); float_init_altivec(c, avctx); + int_init_altivec(c, avctx); c->gmc1 = gmc1_altivec; #ifdef CONFIG_ENCODERS diff --git a/libavcodec/ppc/int_altivec.c b/libavcodec/ppc/int_altivec.c new file mode 100644 index 0000000..8ce1f1d --- /dev/null +++ b/libavcodec/ppc/int_altivec.c @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2007 Luca Barbato <lu_zero@gentoo.org> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + ** @file int_altivec.c + ** integer misc ops. + **/ + +#include "../dsputil.h" + +#include "gcc_fixes.h" + +#include "dsputil_altivec.h" + +static int ssd_int8_vs_int16_altivec(int8_t *pix1, int16_t *pix2, int size) { + int i, size16; + vector signed char vpix1; + vector signed short vpix2, vdiff, vpix1l,vpix1h; + union { vector signed int vscore; + int32_t score[4]; + } u; + u.vscore = vec_splat_s32(0); +// +//XXX lazy way, fix it later + +#define vec_unaligned_load(b) \ + vec_perm(vec_ld(0,b),vec_ld(15,b),vec_lvsl(0, b)); + + size16 = size >> 4; + while(size16) { +// score += (pix1[i]-pix2[i])*(pix1[i]-pix2[i]); + //load pix1 and the first batch of pix2 + + vpix1 = vec_unaligned_load(pix1); + vpix2 = vec_unaligned_load(pix2); + pix2 += 8; + //unpack + vpix1h = vec_unpackh(vpix1); + vdiff = vec_sub(vpix1h, vpix2); + vpix1l = vec_unpackl(vpix1); + // load another batch from pix2 + vpix2 = vec_unaligned_load(pix2); + u.vscore = vec_msum(vdiff, vdiff, u.vscore); + vdiff = vec_sub(vpix1l, vpix2); + u.vscore = vec_msum(vdiff, vdiff, u.vscore); + pix1 += 16; + pix2 += 8; + size16--; + } + u.vscore = vec_sums(u.vscore, vec_splat_s32(0)); + + size %= 16; + for (i = 0; i < size; i++) { + u.score[3] += (pix1[i]-pix2[i])*(pix1[i]-pix2[i]); + } + return u.score[3]; +} + +void int_init_altivec(DSPContext* c, AVCodecContext *avctx) +{ + c->ssd_int8_vs_int16 = ssd_int8_vs_int16_altivec; +} |