generic/lib/geometric/cross.cl

#include <clc/clc.h>

_CLC_OVERLOAD _CLC_DEF float3 cross(float3 p0, float3 p1) {
  return (float3)(p0.y*p1.z - p0.z*p1.y, p0.z*p1.x - p0.x*p1.z,
                  p0.x*p1.y - p0.y*p1.x);
}

_CLC_OVERLOAD _CLC_DEF float4 cross(float4 p0, float4 p1) {
  return (float4)(p0.y*p1.z - p0.z*p1.y, p0.z*p1.x - p0.x*p1.z,
                  p0.x*p1.y - p0.y*p1.x, 0.f);
}

#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64 : enable

_CLC_OVERLOAD _CLC_DEF double3 cross(double3 p0, double3 p1) {
  return (double3)(p0.y*p1.z - p0.z*p1.y, p0.z*p1.x - p0.x*p1.z,
                   p0.x*p1.y - p0.y*p1.x);
}

_CLC_OVERLOAD _CLC_DEF double4 cross(double4 p0, double4 p1) {
  return (double4)(p0.y*p1.z - p0.z*p1.y, p0.z*p1.x - p0.x*p1.z,
                   p0.x*p1.y - p0.y*p1.x, 0.f);
}
#endif