public Buffer(ComputeProvider provider, Operations operations, Memory memory, IntPtr data, int length) // Create and copy/use data from host
{
ClNet.ErrorCode error;
_length = length;
_mem = Cl.CreateBuffer(provider.Context, (ClNet.MemFlags)operations | (memory == Memory.Host ? ClNet.MemFlags.UseHostPtr : (ClNet.MemFlags)memory | (data != IntPtr.Zero ? ClNet.MemFlags.CopyHostPtr : 0)),
(IntPtr)(_elementSize * _length), data, out error);
if (error != ClNet.ErrorCode.Success)
{
throw new Cl.Exception(error);
}
Operations = operations;
Memory = memory;
}
public Buffer(ComputeProvider provider, Operations operations, bool hostAccessible, int length) // Create, no data
{
ClNet.ErrorCode error;
_length = length;
var size = (IntPtr)(_length * _elementSize);
_mem = Cl.CreateBuffer(
provider.Context
, (ClNet.MemFlags)operations | (hostAccessible ? ClNet.MemFlags.AllocHostPtr : 0)
, size, null, out error);
if (error != ClNet.ErrorCode.Success)
{
throw new Cl.Exception(error);
}
Operations = operations;
Memory = Memory.Device;
}