/// <summary>
/// Creates a new <see cref="ComputeProgram"/> from a specified list of binaries.
/// </summary>
/// <param name="context"> A <see cref="ComputeContext"/>. </param>
/// <param name="binaries"> A list of binaries, one for each item in <paramref name="devices"/>. </param>
/// <param name="devices"> A subset of the <see cref="ComputeContext.Devices"/>. If <paramref name="devices"/> is <c>null</c>, OpenCL will associate every binary from <see cref="ComputeProgram.Binaries"/> with a corresponding <see cref="ComputeDevice"/> from <see cref="ComputeContext.Devices"/>. </param>
public ComputeProgram(ComputeContext context, IList <byte[]> binaries, IList <ComputeDevice> devices)
{
int count;
CLDeviceHandle[] deviceHandles = (devices != null) ?
ComputeTools.ExtractHandles(devices, out count) :
ComputeTools.ExtractHandles(context.Devices, out count);
IntPtr[] binariesPtrs = new IntPtr[count];
IntPtr[] binariesLengths = new IntPtr[count];
int[] binariesStats = new int[count];
ComputeErrorCode error = ComputeErrorCode.Success;
GCHandle[] binariesGCHandles = new GCHandle[count];
try
{
for (int i = 0; i < count; i++)
{
binariesGCHandles[i] = GCHandle.Alloc(binaries[i], GCHandleType.Pinned);
binariesPtrs[i] = binariesGCHandles[i].AddrOfPinnedObject();
binariesLengths[i] = new IntPtr(binaries[i].Length);
}
Handle = CL12.CreateProgramWithBinary(
context.Handle,
count,
deviceHandles,
binariesLengths,
binariesPtrs,
binariesStats,
out error);
ComputeException.ThrowOnError(error);
}
finally
{
for (int i = 0; i < count; i++)
{
binariesGCHandles[i].Free();
}
}
this.binaries = new ReadOnlyCollection <byte[]>(binaries);
this.context = context;
this.devices = new ReadOnlyCollection <ComputeDevice>(
(devices != null) ? devices : context.Devices);
Trace.WriteLine("Create " + this + " in Thread(" + Thread.CurrentThread.ManagedThreadId + ").", "Information");
}
