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Add useful Altivec types, taken from with permission from x264 authors

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Originally committed as revision 7125 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Guillaume Poirier 2006-11-19 22:51:54 +00:00
parent 807e0c6645
commit 00f636a04f
1 changed files with 41 additions and 0 deletions
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41
libavcodec/ppc/types_altivec.h Normal file
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/*
* Copyright (c) 2006 Guillaume Poirier <gpoirier@mplayerhq.hu>
*
* 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
*/
/***********************************************************************
* Vector types
**********************************************************************/
#define vec_u8_t vector unsigned char
#define vec_s8_t vector signed char
#define vec_u16_t vector unsigned short
#define vec_s16_t vector signed short
#define vec_u32_t vector unsigned int
#define vec_s32_t vector signed int
/***********************************************************************
* Null vector
**********************************************************************/
#define LOAD_ZERO const vec_u8_t zerov = vec_splat_u8( 0 )
#define zero_u8v (vec_u8_t) zerov
#define zero_s8v (vec_s8_t) zerov
#define zero_u16v (vec_u16_t) zerov
#define zero_s16v (vec_s16_t) zerov
#define zero_u32v (vec_u32_t) zerov
#define zero_s32v (vec_s32_t) zerov