btQuadWord.h

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/*
Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans  http://continuousphysics.com/Bullet/

This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose, 
including commercial applications, and to alter it and redistribute it freely, 
subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/


#ifndef BT_SIMD_QUADWORD_H
#define BT_SIMD_QUADWORD_H

#include "btScalar.h"
#include "btMinMax.h"





#if defined (__CELLOS_LV2) && defined (__SPU__)
#include <altivec.h>
#endif

#ifndef USE_LIBSPE2
ATTRIBUTE_ALIGNED16(class) btQuadWord
#else
class btQuadWord
#endif
{
protected:

#if defined (__SPU__) && defined (__CELLOS_LV2__)
        union {
                vec_float4 mVec128;
                btScalar        m_floats[4];
        };
public:
        vec_float4      get128() const
        {
                return mVec128;
        }
protected:
#else //__CELLOS_LV2__ __SPU__

#if defined(BT_USE_SSE) || defined(BT_USE_NEON) 
        union {
                btSimdFloat4 mVec128;
                btScalar        m_floats[4];
        };
public:
        SIMD_FORCE_INLINE       btSimdFloat4    get128() const
        {
                return mVec128;
        }
        SIMD_FORCE_INLINE       void    set128(btSimdFloat4 v128)
        {
                mVec128 = v128;
        }
#else
        btScalar        m_floats[4];
#endif // BT_USE_SSE

#endif //__CELLOS_LV2__ __SPU__

        public:
  
#if defined(BT_USE_SSE) || defined(BT_USE_NEON)

        // Set Vector 
        SIMD_FORCE_INLINE btQuadWord(const btSimdFloat4 vec)
        {
                mVec128 = vec;
        }

        // Copy constructor
        SIMD_FORCE_INLINE btQuadWord(const btQuadWord& rhs)
        {
                mVec128 = rhs.mVec128;
        }

        // Assignment Operator
        SIMD_FORCE_INLINE btQuadWord& 
        operator=(const btQuadWord& v) 
        {
                mVec128 = v.mVec128;
                
                return *this;
        }
        
#endif

                SIMD_FORCE_INLINE const btScalar& getX() const { return m_floats[0]; }
                SIMD_FORCE_INLINE const btScalar& getY() const { return m_floats[1]; }
                SIMD_FORCE_INLINE const btScalar& getZ() const { return m_floats[2]; }
                SIMD_FORCE_INLINE void  setX(btScalar _x) { m_floats[0] = _x;};
                SIMD_FORCE_INLINE void  setY(btScalar _y) { m_floats[1] = _y;};
                SIMD_FORCE_INLINE void  setZ(btScalar _z) { m_floats[2] = _z;};
                SIMD_FORCE_INLINE void  setW(btScalar _w) { m_floats[3] = _w;};
                SIMD_FORCE_INLINE const btScalar& x() const { return m_floats[0]; }
                SIMD_FORCE_INLINE const btScalar& y() const { return m_floats[1]; }
                SIMD_FORCE_INLINE const btScalar& z() const { return m_floats[2]; }
                SIMD_FORCE_INLINE const btScalar& w() const { return m_floats[3]; }

        //SIMD_FORCE_INLINE btScalar&       operator[](int i)       { return (&m_floats[0])[i]; }      
        //SIMD_FORCE_INLINE const btScalar& operator[](int i) const { return (&m_floats[0])[i]; }
        SIMD_FORCE_INLINE       operator       btScalar *()       { return &m_floats[0]; }
        SIMD_FORCE_INLINE       operator const btScalar *() const { return &m_floats[0]; }

        SIMD_FORCE_INLINE       bool    operator==(const btQuadWord& other) const
        {
#ifdef BT_USE_SSE
        return (0xf == _mm_movemask_ps((__m128)_mm_cmpeq_ps(mVec128, other.mVec128)));
#else 
                return ((m_floats[3]==other.m_floats[3]) && 
                (m_floats[2]==other.m_floats[2]) && 
                (m_floats[1]==other.m_floats[1]) && 
                (m_floats[0]==other.m_floats[0]));
#endif
        }

        SIMD_FORCE_INLINE       bool    operator!=(const btQuadWord& other) const
        {
                return !(*this == other);
        }

                SIMD_FORCE_INLINE void  setValue(const btScalar& _x, const btScalar& _y, const btScalar& _z)
                {
                        m_floats[0]=_x;
                        m_floats[1]=_y;
                        m_floats[2]=_z;
                        m_floats[3] = 0.f;
                }

/*              void getValue(btScalar *m) const 
                {
                        m[0] = m_floats[0];
                        m[1] = m_floats[1];
                        m[2] = m_floats[2];
                }
*/
                SIMD_FORCE_INLINE void  setValue(const btScalar& _x, const btScalar& _y, const btScalar& _z,const btScalar& _w)
                {
                        m_floats[0]=_x;
                        m_floats[1]=_y;
                        m_floats[2]=_z;
                        m_floats[3]=_w;
                }
                SIMD_FORCE_INLINE btQuadWord()
                //      :m_floats[0](btScalar(0.)),m_floats[1](btScalar(0.)),m_floats[2](btScalar(0.)),m_floats[3](btScalar(0.))
                {
                }
 
                SIMD_FORCE_INLINE btQuadWord(const btScalar& _x, const btScalar& _y, const btScalar& _z)                
                {
                        m_floats[0] = _x, m_floats[1] = _y, m_floats[2] = _z, m_floats[3] = 0.0f;
                }

                SIMD_FORCE_INLINE btQuadWord(const btScalar& _x, const btScalar& _y, const btScalar& _z,const btScalar& _w) 
                {
                        m_floats[0] = _x, m_floats[1] = _y, m_floats[2] = _z, m_floats[3] = _w;
                }

                SIMD_FORCE_INLINE void  setMax(const btQuadWord& other)
                {
        #ifdef BT_USE_SSE
            mVec128 = _mm_max_ps(mVec128, other.mVec128);
        #elif defined(BT_USE_NEON)
            mVec128 = vmaxq_f32(mVec128, other.mVec128);
        #else
                btSetMax(m_floats[0], other.m_floats[0]);
                        btSetMax(m_floats[1], other.m_floats[1]);
                        btSetMax(m_floats[2], other.m_floats[2]);
                        btSetMax(m_floats[3], other.m_floats[3]);
                #endif
        }
                SIMD_FORCE_INLINE void  setMin(const btQuadWord& other)
                {
        #ifdef BT_USE_SSE
            mVec128 = _mm_min_ps(mVec128, other.mVec128);
        #elif defined(BT_USE_NEON)
            mVec128 = vminq_f32(mVec128, other.mVec128);
        #else
                btSetMin(m_floats[0], other.m_floats[0]);
                        btSetMin(m_floats[1], other.m_floats[1]);
                        btSetMin(m_floats[2], other.m_floats[2]);
                        btSetMin(m_floats[3], other.m_floats[3]);
                #endif
        }



};

#endif //BT_SIMD_QUADWORD_H