1 /* 2 (C) Copyright 2001,2006, 3 International Business Machines Corporation, 4 Sony Computer Entertainment, Incorporated, 5 Toshiba Corporation, 6 7 All rights reserved. 8 9 Redistribution and use in source and binary forms, with or without 10 modification, are permitted provided that the following conditions are met: 11 12 * Redistributions of source code must retain the above copyright notice, 13 this list of conditions and the following disclaimer. 14 * Redistributions in binary form must reproduce the above copyright 15 notice, this list of conditions and the following disclaimer in the 16 documentation and/or other materials provided with the distribution. 17 * Neither the names of the copyright holders nor the names of their 18 contributors may be used to endorse or promote products derived from this 19 software without specific prior written permission. 20 21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 22 IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 24 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 25 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 26 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 28 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 29 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 31 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #ifndef _VEC_LITERAL_H_ 34 #define _VEC_LITERAL_H_ 35 36 /* This header files provides an abstraction for the various implementations 37 * of vector literal construction. The two formats are: 38 * 39 * 1) Altivec styled using parenthesis 40 * 2) C grammer friendly styled using curly braces 41 * 42 * The macro, VEC_LITERAL has been developed to provide some portability 43 * in these two styles. To achieve true portability, user must specify all 44 * elements of the vector being initialized. A single element can be provided 45 * but only the first element guarenteed across both construction styles. 46 * 47 * The VEC_SPLAT_* macros have been provided for portability of vector literal 48 * construction when all the elements of the vector contain the same value. 49 */ 50 51 #include <spu_intrinsics.h> 52 53 #ifdef __ALTIVEC_LITERAL_STYLE__ 54 /* Use altivec style. 55 */ 56 #define VEC_LITERAL(_type, ...) ((_type)(__VA_ARGS__)) 57 58 #define VEC_SPLAT_U8(_val) ((vector unsigned char)(_val)) 59 #define VEC_SPLAT_S8(_val) ((vector signed char)(_val)) 60 61 #define VEC_SPLAT_U16(_val) ((vector unsigned short)(_val)) 62 #define VEC_SPLAT_S16(_val) ((vector signed short)(_val)) 63 64 #define VEC_SPLAT_U32(_val) ((vector unsigned int)(_val)) 65 #define VEC_SPLAT_S32(_val) ((vector signed int)(_val)) 66 #define VEC_SPLAT_F32(_val) ((vector float)(_val)) 67 68 #define VEC_SPLAT_U64(_val) ((vector unsigned long long)(_val)) 69 #define VEC_SPLAT_S64(_val) ((vector signed long long)(_val)) 70 #define VEC_SPLAT_F64(_val) ((vector double)(_val)) 71 72 #else 73 /* Use curly brace style. 74 */ 75 #define VEC_LITERAL(_type, ...) ((_type){__VA_ARGS__}) 76 77 #define VEC_SPLAT_U8(_val) ((vector unsigned char){_val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val}) 78 #define VEC_SPLAT_S8(_val) ((vector signed char){_val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val, _val}) 79 80 #define VEC_SPLAT_U16(_val) ((vector unsigned short){_val, _val, _val, _val, _val, _val, _val, _val}) 81 #define VEC_SPLAT_S16(_val) ((vector signed short){_val, _val, _val, _val, _val, _val, _val, _val}) 82 83 #define VEC_SPLAT_U32(_val) ((vector unsigned int){_val, _val, _val, _val}) 84 #define VEC_SPLAT_S32(_val) ((vector signed int){_val, _val, _val, _val}) 85 #define VEC_SPLAT_F32(_val) ((vector float){_val, _val, _val, _val}) 86 87 #define VEC_SPLAT_U64(_val) ((vector unsigned long long){_val, _val}) 88 #define VEC_SPLAT_S64(_val) ((vector signed long long){_val, _val}) 89 #define VEC_SPLAT_F64(_val) ((vector double){_val, _val}) 90 91 #endif 92 93 #endif /* _VEC_LITERAL_H_ */ 94
