1 /**
2 * Aften: A/52 audio encoder
3 * Copyright (c) 2007, David Conrad
4 * Copyright (c) 2006, Ryan C. Gordon
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef ALTIVEC_COMMON_H
22 #define ALTIVEC_COMMON_H
23
24 typedef vector unsigned char vec_u8_t;
25 typedef vector signed char vec_s8_t;
26 typedef vector unsigned short vec_u16_t;
27 typedef vector signed short vec_s16_t;
28 typedef vector unsigned int vec_u32_t;
29 typedef vector signed int vec_s32_t;
30
31 #define VPERMUTE4(a,b,c,d) (vec_u8_t) \
32 ( (a*4)+0, (a*4)+1, (a*4)+2, (a*4)+3, \
33 (b*4)+0, (b*4)+1, (b*4)+2, (b*4)+3, \
34 (c*4)+0, (c*4)+1, (c*4)+2, (c*4)+3, \
35 (d*4)+0, (d*4)+1, (d*4)+2, (d*4)+3 )
36
vec_ld_float(const float * a)37 static inline vector float vec_ld_float(const float *a)
38 {
39 switch((int)a & 0xc) {
40 case 4: return vec_splat(vec_lde(0, a), 1);
41 case 8: return vec_splat(vec_lde(0, a), 2);
42 case 12: return vec_splat(vec_lde(0, a), 3);
43 }
44 return vec_splat(vec_lde(0, a), 0);
45 }
46
47 #endif
48