public uint GetDeviceCount(DeviceType deviceType)
{
Result result = DevicesNativeApi.GetDeviceIds(
Handle,
(Interop.Devices.DeviceType)deviceType,
0,
null,
out uint numberOfAvailableDevices
);
return(numberOfAvailableDevices);
}
/// <summary>
/// Gets all devices of the platform that match the specified device type.
/// </summary>
/// <param name="deviceType">The type of devices that is to be retrieved.</param>
/// <exception cref="OpenClException">
/// If the devices could not be retrieved, then a <see cref="OpenClException" /> is
/// thrown.
/// </exception>
/// <returns>Returns a list of all devices that matched the specified device type.</returns>
public IEnumerable <Device> GetDevices(DeviceType deviceType)
{
// Gets the number of available devices of the specified type
uint numberOfAvailableDevices;
Result result = DevicesNativeApi.GetDeviceIds(
Handle,
(Interop.Devices.DeviceType)deviceType,
0,
null,
out numberOfAvailableDevices
);
if (result != Result.Success)
{
throw new OpenClException("The number of available devices could not be queried.", result);
}
// Gets the pointers to the devices of the specified type
IntPtr[] devicePointers = new IntPtr[numberOfAvailableDevices];
result = DevicesNativeApi.GetDeviceIds(
Handle,
(Interop.Devices.DeviceType)deviceType,
numberOfAvailableDevices,
devicePointers,
out numberOfAvailableDevices
);
if (result != Result.Success)
{
throw new OpenClException("The devices could not be retrieved.", result);
}
// Converts the pointer to device objects
foreach (IntPtr devicePointer in devicePointers)
{
yield return(new Device(devicePointer));
}
}