94 lines
4.1 KiB
C
94 lines
4.1 KiB
C
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/*
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(C) Copyright 2001,2006,
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International Business Machines Corporation,
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Sony Computer Entertainment, Incorporated,
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Toshiba Corporation,
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the names of the copyright holders nor the names of their
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contributors may be used to endorse or promote products derived from this
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software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _VEC_LITERAL_H_
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#define _VEC_LITERAL_H_
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/* This header files provides an abstraction for the various implementations
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* of vector literal construction. The two formats are:
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*
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* 1) Altivec styled using parenthesis
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* 2) C grammer friendly styled using curly braces
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*
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* The macro, VEC_LITERAL has been developed to provide some portability
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* in these two styles. To achieve true portability, user must specify all
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* elements of the vector being initialized. A single element can be provided
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* but only the first element guarenteed across both construction styles.
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*
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* The VEC_SPLAT_* macros have been provided for portability of vector literal
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* construction when all the elements of the vector contain the same value.
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*/
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#include <spu_intrinsics.h>
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#ifdef __ALTIVEC_LITERAL_STYLE__
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/* Use altivec style.
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*/
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#define VEC_LITERAL(_type, ...) ((_type)(__VA_ARGS__))
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#define VEC_SPLAT_U8(_val) ((vector unsigned char)(_val))
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#define VEC_SPLAT_S8(_val) ((vector signed char)(_val))
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#define VEC_SPLAT_U16(_val) ((vector unsigned short)(_val))
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#define VEC_SPLAT_S16(_val) ((vector signed short)(_val))
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#define VEC_SPLAT_U32(_val) ((vector unsigned int)(_val))
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#define VEC_SPLAT_S32(_val) ((vector signed int)(_val))
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#define VEC_SPLAT_F32(_val) ((vector float)(_val))
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#define VEC_SPLAT_U64(_val) ((vector unsigned long long)(_val))
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#define VEC_SPLAT_S64(_val) ((vector signed long long)(_val))
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#define VEC_SPLAT_F64(_val) ((vector double)(_val))
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#else
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/* Use curly brace style.
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*/
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#define VEC_LITERAL(_type, ...) ((_type){__VA_ARGS__})
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#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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#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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#define VEC_SPLAT_U16(_val) ((vector unsigned short){_val, _val, _val, _val, _val, _val, _val, _val})
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#define VEC_SPLAT_S16(_val) ((vector signed short){_val, _val, _val, _val, _val, _val, _val, _val})
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#define VEC_SPLAT_U32(_val) ((vector unsigned int){_val, _val, _val, _val})
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#define VEC_SPLAT_S32(_val) ((vector signed int){_val, _val, _val, _val})
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#define VEC_SPLAT_F32(_val) ((vector float){_val, _val, _val, _val})
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#define VEC_SPLAT_U64(_val) ((vector unsigned long long){_val, _val})
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#define VEC_SPLAT_S64(_val) ((vector signed long long){_val, _val})
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#define VEC_SPLAT_F64(_val) ((vector double){_val, _val})
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#endif
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#endif /* _VEC_LITERAL_H_ */
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