public static void SetBuffers(this IMTLIntersectionFunctionTable table, IMTLBuffer[] buffers, nuint[] offsets, NSRange range)
{
if (buffers == null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(buffers));
}
if (offsets == null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(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
{
table.SetBuffers((IntPtr)buffersPtr, (IntPtr)offsetsPtr, range);
}
}
GC.KeepAlive(buffers);
}
public void SetUp()
{
TestRuntime.AssertXcodeVersion(12, 0);
device = MTLDevice.SystemDefault;
// some older hardware won't have a default
if (device == null)
{
Assert.Inconclusive("Metal is not supported");
}
library = device.CreateDefaultLibrary();
if (library == null) // this happens on a simulator
{
Assert.Inconclusive("Could not get the functions library for the device.");
}
if (library.FunctionNames.Length == 0)
{
Assert.Inconclusive("Could not get functions for the pipeline.");
}
function = library.CreateFunction(library.FunctionNames [0]);
pipelineState = device.CreateComputePipelineState(function, MTLPipelineOption.ArgumentInfo, out MTLComputePipelineReflection reflection, out NSError error);
if (error != null)
{
Assert.Inconclusive($"Could not create pipeline {error}");
}
descriptor = MTLIntersectionFunctionTableDescriptor.Create();
functionTable = pipelineState.CreateIntersectionFunctionTable(descriptor);
}