public void SetBuffers()
{
Assert.Throws <ArgumentNullException> (() => {
encoder.SetBuffers(null, new nuint [0], new NSRange());
}, "Null buffers should throw.");
Assert.Throws <ArgumentNullException> (() => {
encoder.SetBuffers(new IMTLBuffer [0], null, new NSRange());
}, "Null offsets should throw.");
// assert we do not crash or throw, we are testing the extension method
Assert.DoesNotThrow(() => {
encoder.SetBuffers(new IMTLBuffer [0], new nuint [0], new NSRange());
}, "Should not throw");
}
public static void SetBuffers(this IMTLArgumentEncoder encoder, IMTLBuffer[] buffers, nuint[] offsets, NSRange range)
{
if (buffers == null)
{
throw new ArgumentNullException(nameof(buffers));
}
if (offsets == null)
{
throw new ArgumentNullException(nameof(offsets));
}
var bufferPtrArray = buffers.Length <= 1024 ? stackalloc IntPtr[buffers.Length] : new IntPtr [buffers.Length];
// get all intptr from the array to pass to the lower level call
for (var i = 0; i < buffers.Length; i++)
{
bufferPtrArray [i] = buffers [i].Handle;
}
unsafe
{
fixed(void *buffersPtr = bufferPtrArray)
fixed(void *offsetsPtr = offsets) // can use fixed
{
encoder.SetBuffers((IntPtr)buffersPtr, (IntPtr)offsetsPtr, range);
}
}
GC.KeepAlive(buffers)
}
public unsafe static void SetBuffers(this IMTLArgumentEncoder This, IMTLBuffer [] buffers, nint [] offsets, Foundation.NSRange range)
{
fixed(void *handle = offsets)
This.SetBuffers(buffers, (IntPtr)handle, range);
}
