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