///<summary>
///Enqueues a command to copy data between buffers.
///</summary>
///<typeparam name = "T"> The type of data in the buffers. </typeparam>
///<param name = "source"> The buffer to copy from. </param>
///<param name = "destination"> The buffer to copy to. </param>
///<param name = "sourceOffset"> The <paramref name = "source"/> element position where reading starts. </param>
///<param name = "destinationOffset"> The <paramref name = "destination"/> element position where writing starts. </param>
///<param name = "region"> The region of elements to copy. </param>
///<paramref name = "events"/> is not <c> null </c> or read-only a new <param name = "events"> A collection of events that need to complete before this command <see cref = "ComputeEvent"/> identifying this command is created and attached to the end of the collection. </param>
public void Copy <T>(ComputeBufferBase <T> source, ComputeBufferBase <T> destination, long sourceOffset, long destinationOffset, long region, ICollection <ComputeEventBase> events) where T : struct
{
int sizeofT = Marshal.SizeOf(typeof(T));
int eventWaitListSize;
CLEventHandle[] eventHandles = ComputeTools.ExtractHandles(events, out eventWaitListSize);
bool eventsWritable = (events != null && !events.IsReadOnly);
CLEventHandle[] newEventHandle = (eventsWritable) ? new CLEventHandle[1] : null;
ComputeErrorCode error = CL12.EnqueueCopyBuffer(Handle, source.Handle, destination.Handle, new IntPtr(sourceOffset * sizeofT), new IntPtr(destinationOffset * sizeofT), new IntPtr(region * sizeofT), eventWaitListSize, eventHandles, newEventHandle);
ComputeException.ThrowOnError(error);
if (eventsWritable)
{
events.Add(new ComputeEvent(newEventHandle[0], this));
}
}
