forked from openkylin/vc
50 lines
2.1 KiB
C
50 lines
2.1 KiB
C
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/* This file is part of the Vc library. {{{
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Copyright © 2009-2014 Matthias Kretz <kretz@kde.org>
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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
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notice, 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 contributing organizations nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING 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 VECTORMEMORYHELPER_H
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#define VECTORMEMORYHELPER_H
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#include <Vc/vector.h>
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template<typename Vec>
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class VectorMemoryHelper
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{
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char *const mem;
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char *const aligned;
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public:
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VectorMemoryHelper(int count)
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: mem(new char[count * sizeof(Vec) + Vc::VectorAlignment]),
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aligned(mem + (Vc::VectorAlignment - (reinterpret_cast<std::uintptr_t>( mem ) & ( Vc::VectorAlignment - 1 ))))
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{
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}
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~VectorMemoryHelper() { delete[] mem; }
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operator typename Vec::EntryType *() { return reinterpret_cast<typename Vec::EntryType *>(aligned); }
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};
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#endif // VECTORMEMORYHELPER_H
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