public static void ThrowIfError(this CLResponse response)
{
if (!response.Success)
{
throw CLException.FromCode(response.Error.Code, response.Error.Info);
}
}
/// <summary>
/// Resolves platform information as typed structure value of type <typeparamref name="T"/>
/// </summary>
/// <typeparam name="T">The target type.</typeparam>
/// <param name="platform">The platform.</param>
/// <param name="type">The information type.</param>
/// <returns>The resolved value.</returns>
public static T GetPlatformInfo <T>(IntPtr platform, CLPlatformInfoType type)
where T : struct
{
T value = default;
CLException.ThrowIfFailed(NativeMethods.GetPlatformInfo(
platform,
type,
new IntPtr(Interop.SizeOf <T>()),
Unsafe.AsPointer(ref value),
IntPtr.Zero));
return(value);
}
/// <summary>
/// Resolves device information as array of typed structure values of type
/// <typeparamref name="T"/>.
/// </summary>
/// <typeparam name="T">The target type.</typeparam>
/// <param name="device">The device.</param>
/// <param name="type">The information type.</param>
/// <param name="elements">The elements to fill.</param>
/// <returns>The resolved value.</returns>
public static void GetDeviceInfo <T>(
IntPtr device,
CLDeviceInfoType type,
T[] elements)
where T : unmanaged
{
fixed(T *ptr = &elements[0])
{
CLException.ThrowIfFailed(NativeMethods.GetDeviceInfo(
device,
type,
new IntPtr(Interop.SizeOf <T>() * elements.Length),
ptr,
IntPtr.Zero));
}
}
/// <summary>
/// Resolves kernel work-group information as typed structure value of type <typeparamref name="T"/>
/// </summary>
/// <typeparam name="T">The target type.</typeparam>
/// <param name="kernel">The kernel.</param>
/// <param name="device">The device.</param>
/// <param name="type">The information type.</param>
/// <returns>The resolved value.</returns>
public static T GetKernelWorkGroupInfo <T>(
IntPtr kernel,
IntPtr device,
CLKernelWorkGroupInfoType type)
where T : struct
{
T value = default;
CLException.ThrowIfFailed(NativeMethods.GetKernelWorkGroupInfo(
kernel,
device,
type,
new IntPtr(Interop.SizeOf <T>()),
Unsafe.AsPointer(ref value),
IntPtr.Zero));
return(value);
}
/// <summary>
/// Resolves platform information as string value.
/// </summary>
/// <param name="platform">The platform.</param>
/// <param name="type">The information type.</param>
/// <returns>The resolved string value.</returns>
public static string GetPlatformInfo(IntPtr platform, CLPlatformInfoType type)
{
const int MaxStringLength = 1024;
var stringValue = stackalloc sbyte[MaxStringLength];
var size = IntPtr.Zero;
CLException.ThrowIfFailed(NativeMethods.GetPlatformInfo(
platform,
type,
new IntPtr(MaxStringLength),
stringValue,
new IntPtr(&size)));
int intSize = size.ToInt32();
return(intSize > 0 && intSize < MaxStringLength
? new string(stringValue, 0, intSize - 1)
: string.Empty);
}
/// <summary>
/// Resolves device information as array of typed structure values of type <typeparamref name="T"/>
/// </summary>
/// <typeparam name="T">The target type.</typeparam>
/// <param name="device">The device.</param>
/// <param name="type">The information type.</param>
/// <param name="elements">The elements to fill.</param>
/// <returns>The resolved value.</returns>
public static void GetDeviceInfo <T>(IntPtr device, CLDeviceInfoType type, T[] elements)
where T : struct
{
var handle = GCHandle.Alloc(elements, GCHandleType.Pinned);
try
{
CLException.ThrowIfFailed(NativeMethods.GetDeviceInfo(
device,
type,
new IntPtr(Interop.SizeOf <T>() * elements.Length),
handle.AddrOfPinnedObject().ToPointer(),
IntPtr.Zero));
}
finally
{
handle.Free();
}
}
/// <summary>
/// Resolves device information as string value.
/// </summary>
/// <param name="device">The device.</param>
/// <param name="type">The information type.</param>
/// <returns>The resolved string value.</returns>
public static string GetDeviceInfo(IntPtr device, CLDeviceInfoType type)
{
const int MaxStringLength = 8192;
var stringValue = stackalloc sbyte[MaxStringLength];
var size = IntPtr.Zero;
CLException.ThrowIfFailed(NativeMethods.GetDeviceInfo(
device,
type,
new IntPtr(MaxStringLength),
stringValue,
new IntPtr(&size)));
int intSize = size.ToInt32();
if (intSize > 0 && intSize < MaxStringLength)
{
return(new string(stringValue, 0, intSize - 1));
}
return(string.Empty);
}
