248 lines
7.0 KiB
C++
248 lines
7.0 KiB
C++
/*
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Copyright (C) 2006, 2007 Sony Computer Entertainment Inc.
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All rights reserved.
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Redistribution and use in source and binary forms,
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with or without modification, are permitted provided that the
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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 name of the Sony Computer Entertainment Inc nor the names
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of its contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _BOOLINVEC_H
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#define _BOOLINVEC_H
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#include <math.h>
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namespace Vectormath {
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class floatInVec;
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//--------------------------------------------------------------------------------------------------
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// boolInVec class
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//
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class boolInVec
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{
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private:
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__m128 mData;
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inline boolInVec(__m128 vec);
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public:
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inline boolInVec() {}
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// matches standard type conversions
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//
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inline boolInVec(const floatInVec &vec);
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// explicit cast from bool
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//
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explicit inline boolInVec(bool scalar);
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#ifdef _VECTORMATH_NO_SCALAR_CAST
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// explicit cast to bool
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//
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inline bool getAsBool() const;
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#else
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// implicit cast to bool
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//
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inline operator bool() const;
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#endif
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// get vector data
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// bool value is splatted across all word slots of vector as 0 (false) or -1 (true)
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//
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inline __m128 get128() const;
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// operators
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//
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inline const boolInVec operator ! () const;
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inline boolInVec& operator = (const boolInVec &vec);
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inline boolInVec& operator &= (const boolInVec &vec);
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inline boolInVec& operator ^= (const boolInVec &vec);
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inline boolInVec& operator |= (const boolInVec &vec);
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// friend functions
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//
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friend inline const boolInVec operator == (const boolInVec &vec0, const boolInVec &vec1);
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friend inline const boolInVec operator != (const boolInVec &vec0, const boolInVec &vec1);
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friend inline const boolInVec operator < (const floatInVec &vec0, const floatInVec &vec1);
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friend inline const boolInVec operator <= (const floatInVec &vec0, const floatInVec &vec1);
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friend inline const boolInVec operator > (const floatInVec &vec0, const floatInVec &vec1);
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friend inline const boolInVec operator >= (const floatInVec &vec0, const floatInVec &vec1);
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friend inline const boolInVec operator == (const floatInVec &vec0, const floatInVec &vec1);
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friend inline const boolInVec operator != (const floatInVec &vec0, const floatInVec &vec1);
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friend inline const boolInVec operator & (const boolInVec &vec0, const boolInVec &vec1);
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friend inline const boolInVec operator ^ (const boolInVec &vec0, const boolInVec &vec1);
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friend inline const boolInVec operator | (const boolInVec &vec0, const boolInVec &vec1);
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friend inline const boolInVec select(const boolInVec &vec0, const boolInVec &vec1, const boolInVec &select_vec1);
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};
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//--------------------------------------------------------------------------------------------------
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// boolInVec functions
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//
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// operators
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//
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inline const boolInVec operator == (const boolInVec &vec0, const boolInVec &vec1);
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inline const boolInVec operator != (const boolInVec &vec0, const boolInVec &vec1);
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inline const boolInVec operator & (const boolInVec &vec0, const boolInVec &vec1);
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inline const boolInVec operator ^ (const boolInVec &vec0, const boolInVec &vec1);
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inline const boolInVec operator | (const boolInVec &vec0, const boolInVec &vec1);
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// select between vec0 and vec1 using boolInVec.
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// false selects vec0, true selects vec1
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//
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inline const boolInVec select(const boolInVec &vec0, const boolInVec &vec1, const boolInVec &select_vec1);
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} // namespace Vectormath
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//--------------------------------------------------------------------------------------------------
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// boolInVec implementation
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//
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#include "floatInVec.h"
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namespace Vectormath {
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inline
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boolInVec::boolInVec(__m128 vec)
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{
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mData = vec;
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}
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inline
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boolInVec::boolInVec(const floatInVec &vec)
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{
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*this = (vec != floatInVec(0.0f));
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}
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inline
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boolInVec::boolInVec(bool scalar)
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{
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unsigned int mask = -(int)scalar;
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mData = _mm_set1_ps(*(float *)&mask); // TODO: Union
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}
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#ifdef _VECTORMATH_NO_SCALAR_CAST
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inline
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bool
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boolInVec::getAsBool() const
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#else
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inline
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boolInVec::operator bool() const
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#endif
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{
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return *(bool *)&mData;
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}
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inline
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__m128
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boolInVec::get128() const
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{
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return mData;
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}
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inline
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const boolInVec
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boolInVec::operator ! () const
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{
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return boolInVec(_mm_andnot_ps(mData, _mm_cmpneq_ps(_mm_setzero_ps(),_mm_setzero_ps())));
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}
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inline
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boolInVec&
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boolInVec::operator = (const boolInVec &vec)
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{
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mData = vec.mData;
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return *this;
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}
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inline
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boolInVec&
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boolInVec::operator &= (const boolInVec &vec)
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{
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*this = *this & vec;
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return *this;
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}
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inline
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boolInVec&
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boolInVec::operator ^= (const boolInVec &vec)
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{
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*this = *this ^ vec;
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return *this;
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}
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inline
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boolInVec&
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boolInVec::operator |= (const boolInVec &vec)
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{
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*this = *this | vec;
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return *this;
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}
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inline
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const boolInVec
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operator == (const boolInVec &vec0, const boolInVec &vec1)
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{
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return boolInVec(_mm_cmpeq_ps(vec0.get128(), vec1.get128()));
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}
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inline
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const boolInVec
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operator != (const boolInVec &vec0, const boolInVec &vec1)
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{
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return boolInVec(_mm_cmpneq_ps(vec0.get128(), vec1.get128()));
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}
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inline
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const boolInVec
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operator & (const boolInVec &vec0, const boolInVec &vec1)
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{
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return boolInVec(_mm_and_ps(vec0.get128(), vec1.get128()));
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}
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inline
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const boolInVec
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operator | (const boolInVec &vec0, const boolInVec &vec1)
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{
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return boolInVec(_mm_or_ps(vec0.get128(), vec1.get128()));
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}
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inline
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const boolInVec
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operator ^ (const boolInVec &vec0, const boolInVec &vec1)
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{
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return boolInVec(_mm_xor_ps(vec0.get128(), vec1.get128()));
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}
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inline
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const boolInVec
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select(const boolInVec &vec0, const boolInVec &vec1, const boolInVec &select_vec1)
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{
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return boolInVec(vec_sel(vec0.get128(), vec1.get128(), select_vec1.get128()));
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}
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} // namespace Vectormath
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#endif // boolInVec_h
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