/// <summary>
/// Copy results of queries in a query pool to a host memory region.
/// </summary>
public Result GetResults(uint firstQuery, uint queryCount, ArrayProxy <byte> data, DeviceSize stride, QueryResultFlags flags)
{
unsafe
{
try
{
Result result = default(Result);
GCHandle dataHandle = default(GCHandle);
byte * marshalledData = null;
if (data.Contents != ProxyContents.Null)
{
if (data.Contents == ProxyContents.Single)
{
byte *dataPointer = stackalloc byte[1];
* dataPointer = data.GetSingleValue();
marshalledData = dataPointer;
}
else
{
var arrayValue = data.GetArrayValue();
dataHandle = GCHandle.Alloc(arrayValue.Array, GCHandleType.Pinned);
marshalledData = (byte *)(dataHandle.AddrOfPinnedObject() + (int)(MemUtil.SizeOf <byte>() * arrayValue.Offset)).ToPointer();
}
}
else
{
marshalledData = null;
}
result = Interop.Commands.vkGetQueryPoolResults(this.parent.handle, this.handle, firstQuery, queryCount, (Size)(data.Length), marshalledData, stride, flags);
if (SharpVkException.IsError(result))
{
throw SharpVkException.Create(result);
}
if (dataHandle.IsAllocated)
{
dataHandle.Free();
}
return(result);
}
finally
{
Interop.HeapUtil.FreeLog();
}
}
}
