public Event EnqueueWriteBuffer <T>(Mem <T> buffer, bool blockingRead, uint offset, uint length, T[] ptr, Event[] eventWaitList) where T : struct
{
var numEvents = 0;
IntPtr[] events = null;
if (eventWaitList != null)
{
numEvents = eventWaitList.Length;
events = Event.ToIntPtr(eventWaitList);
}
IntPtr result = IntPtr.Zero;
GCHandle gch = GCHandle.Alloc(ptr, GCHandleType.Pinned);
try {
var error = NativeMethods.clEnqueueWriteBuffer(
this.handle,
buffer.handle,
blockingRead ? 1u : 0u,
(IntPtr)offset,
(IntPtr)length,
gch.AddrOfPinnedObject(),
(uint)numEvents,
events,
out result);
if (error != ErrorCode.Success)
{
throw new OpenClException(error);
}
}
finally {
gch.Free();
}
return(new Event(result));
}
public Event EnqueueWriteBuffer <T>(Mem <T> buffer, bool blockingWrite, T[] ptr, Event[] eventWaitList) where T : struct
{
var offset = 0;
var length = (uint)(Marshal.SizeOf <T>() * ptr.Length);
if (buffer.Size < length)
{
throw new ArgumentException($"Memory buffer is to small: expected length >= {length}, found {buffer.Size}.");
}
var numEvents = 0;
IntPtr[] events = null;
if (eventWaitList != null)
{
numEvents = eventWaitList.Length;
events = Event.ToIntPtr(eventWaitList);
}
IntPtr result = IntPtr.Zero;
GCHandle gch = GCHandle.Alloc(ptr, GCHandleType.Pinned);
try {
var error = NativeMethods.clEnqueueWriteBuffer(
this.handle,
buffer.handle,
blockingWrite ? 1u : 0u,
(IntPtr)offset,
(IntPtr)length,
gch.AddrOfPinnedObject(),
(uint)numEvents,
events,
out result);
if (error != ErrorCode.Success)
{
throw new OpenClException(error);
}
}
finally {
gch.Free();
}
return(new Event(result));
}