/// <summary>
/// Create a GPUBruteForce Matcher using the specific distance type
/// </summary>
/// <param name="distanceType">The distance type</param>
public GpuBruteForceMatcher(DistanceType distanceType)
{
if (distanceType == DistanceType.Hamming)
{
if (typeof(T) != typeof(byte))
{
throw new ArgumentException("Hamming distance type requires model descriptor to be Matrix<Byte>");
}
}
if (typeof(T) != typeof(byte) && typeof(T) != typeof(float))
{
throw new NotImplementedException(String.Format("Data type of {0} is not supported", typeof(T).ToString()));
}
switch (distanceType)
{
case (DistanceType.Hamming):
_distanceType = GpuMatcherDistanceType.HammingDist;
break;
case (DistanceType.L1):
_distanceType = GpuMatcherDistanceType.L1Dist;
break;
case (DistanceType.L2):
_distanceType = GpuMatcherDistanceType.L2Dist;
break;
default:
throw new NotImplementedException(String.Format("Distance type of {0} is not implemented in GPU.", distanceType.ToString()));
}
_ptr = GpuInvoke.gpuBruteForceMatcherCreate(_distanceType);
}
internal extern static IntPtr gpuBruteForceMatcherCreate(GpuMatcherDistanceType distType);
