PxVecTransform.h

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#ifndef PX_VEC_TRANSFORM_H
#define PX_VEC_TRANSFORM_H

#include "foundation/PxVecMath.h"
#include "foundation/PxTransform.h"

#if !PX_DOXYGEN
namespace physx
{
#endif
namespace aos
{

class PxTransformV
{
  public:
    QuatV q;
    Vec3V p;

    PX_FORCE_INLINE PxTransformV(const PxTransform& orientation)
    {
        // const PxQuat oq = orientation.q;
        // const PxF32 f[4] = {oq.x, oq.y, oq.z, oq.w};
        q = QuatVLoadXYZW(orientation.q.x, orientation.q.y, orientation.q.z, orientation.q.w);
        // q = QuatV_From_F32Array(&oq.x);
        p = V3LoadU(orientation.p);
    }

    PX_FORCE_INLINE PxTransformV(const Vec3VArg p0 = V3Zero(), const QuatVArg q0 = QuatIdentity()) : q(q0), p(p0)
    {
        PX_ASSERT(isSaneQuatV(q0));
    }

    PX_FORCE_INLINE PxTransformV operator*(const PxTransformV& x) const
    {
        PX_ASSERT(x.isSane());
        return transform(x);
    }

    PX_FORCE_INLINE PxTransformV getInverse() const
    {
        PX_ASSERT(isFinite());
        // return PxTransform(q.rotateInv(-p),q.getConjugate());
        return PxTransformV(QuatRotateInv(q, V3Neg(p)), QuatConjugate(q));
    }

    PX_FORCE_INLINE void normalize()
    {
        p = V3Zero();
        q = QuatIdentity();
    }

    PX_FORCE_INLINE void Invalidate()
    {
        p = V3Splat(FMax());
        q = QuatIdentity();
    }

    PX_FORCE_INLINE Vec3V transform(const Vec3VArg input) const
    {
        PX_ASSERT(isFinite());
        // return q.rotate(input) + p;
        return QuatTransform(q, p, input);
    }

    PX_FORCE_INLINE Vec3V transformInv(const Vec3VArg input) const
    {
        PX_ASSERT(isFinite());
        // return q.rotateInv(input-p);
        return QuatRotateInv(q, V3Sub(input, p));
    }

    PX_FORCE_INLINE Vec3V rotate(const Vec3VArg input) const
    {
        PX_ASSERT(isFinite());
        // return q.rotate(input);
        return QuatRotate(q, input);
    }

    PX_FORCE_INLINE Vec3V rotateInv(const Vec3VArg input) const
    {
        PX_ASSERT(isFinite());
        // return q.rotateInv(input);
        return QuatRotateInv(q, input);
    }

    PX_FORCE_INLINE PxTransformV transform(const PxTransformV& src) const
    {
        PX_ASSERT(src.isSane());
        PX_ASSERT(isSane());
        // src = [srct, srcr] -> [r*srct + t, r*srcr]
        // return PxTransform(q.rotate(src.p) + p, q*src.q);
        return PxTransformV(V3Add(QuatRotate(q, src.p), p), QuatMul(q, src.q));
    }

#if PX_LINUX && PX_CLANG
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wbitwise-instead-of-logical" // bitwise intentionally chosen for performance
#endif

    PX_FORCE_INLINE bool isValid() const
    {
        // return p.isFinite() && q.isFinite() && q.isValid();
        return isFiniteVec3V(p) & isFiniteQuatV(q) & isValidQuatV(q);
    }

    PX_FORCE_INLINE bool isSane() const
    {
        // return isFinite() && q.isSane();
        return isFinite() & isSaneQuatV(q);
    }

    PX_FORCE_INLINE bool isFinite() const
    {
        // return p.isFinite() && q.isFinite();
        return isFiniteVec3V(p) & isFiniteQuatV(q);
    }

#if PX_LINUX && PX_CLANG
#pragma clang diagnostic pop
#endif

    PX_FORCE_INLINE PxTransformV transformInv(const PxTransformV& src) const
    {
        PX_ASSERT(src.isSane());
        PX_ASSERT(isFinite());
        // src = [srct, srcr] -> [r^-1*(srct-t), r^-1*srcr]
        /*PxQuat qinv = q.getConjugate();
        return PxTransform(qinv.rotate(src.p - p), qinv*src.q);*/
        const QuatV qinv = QuatConjugate(q);
        const Vec3V v = QuatRotate(qinv, V3Sub(src.p, p));
        const QuatV rot = QuatMul(qinv, src.q);
        return PxTransformV(v, rot);
    }

    static PX_FORCE_INLINE PxTransformV createIdentity()
    {
        return PxTransformV(V3Zero());
    }
};

PX_FORCE_INLINE PxTransformV loadTransformA(const PxTransform& transform)
{
    const QuatV q0 = QuatVLoadA(&transform.q.x);
    const Vec3V p0 = V3LoadA(&transform.p.x);

    return PxTransformV(p0, q0);
}

PX_FORCE_INLINE PxTransformV loadTransformU(const PxTransform& transform)
{
    const QuatV q0 = QuatVLoadU(&transform.q.x);
    const Vec3V p0 = V3LoadU(&transform.p.x);

    return PxTransformV(p0, q0);
}

class PxMatTransformV
{
  public:
    Mat33V rot;
    Vec3V p;

    PX_FORCE_INLINE PxMatTransformV()
    {
        p = V3Zero();
        rot = M33Identity();
    }
    PX_FORCE_INLINE PxMatTransformV(const Vec3VArg _p, const Mat33V& _rot)
    {
        p = _p;
        rot = _rot;
    }

    PX_FORCE_INLINE PxMatTransformV(const PxTransformV& other)
    {
        p = other.p;
        QuatGetMat33V(other.q, rot.col0, rot.col1, rot.col2);
    }

    PX_FORCE_INLINE PxMatTransformV(const Vec3VArg _p, const QuatV& quat)
    {
        p = _p;
        QuatGetMat33V(quat, rot.col0, rot.col1, rot.col2);
    }

    PX_FORCE_INLINE Vec3V getCol0() const
    {
        return rot.col0;
    }

    PX_FORCE_INLINE Vec3V getCol1() const
    {
        return rot.col1;
    }

    PX_FORCE_INLINE Vec3V getCol2() const
    {
        return rot.col2;
    }

    PX_FORCE_INLINE void setCol0(const Vec3VArg col0)
    {
        rot.col0 = col0;
    }

    PX_FORCE_INLINE void setCol1(const Vec3VArg col1)
    {
        rot.col1 = col1;
    }

    PX_FORCE_INLINE void setCol2(const Vec3VArg col2)
    {
        rot.col2 = col2;
    }

    PX_FORCE_INLINE Vec3V transform(const Vec3VArg input) const
    {
        return V3Add(p, M33MulV3(rot, input));
    }

    PX_FORCE_INLINE Vec3V transformInv(const Vec3VArg input) const
    {
        return M33TrnspsMulV3(rot, V3Sub(input, p)); // QuatRotateInv(q, V3Sub(input, p));
    }

    PX_FORCE_INLINE Vec3V rotate(const Vec3VArg input) const
    {
        return M33MulV3(rot, input);
    }

    PX_FORCE_INLINE Vec3V rotateInv(const Vec3VArg input) const
    {
        return M33TrnspsMulV3(rot, input);
    }

    PX_FORCE_INLINE PxMatTransformV transformInv(const PxMatTransformV& src) const
    {

        const Vec3V v = M33TrnspsMulV3(rot, V3Sub(src.p, p));
        const Mat33V mat = M33MulM33(M33Trnsps(rot), src.rot);
        return PxMatTransformV(v, mat);
    }
};
}
#if !PX_DOXYGEN
} // namespace physx
#endif

#endif