public void GetNextDrawable()
{
if (!_drawable.IsNull)
{
ObjectiveCRuntime.release(_drawable.NativePtr);
}
using (NSAutoreleasePool.Begin())
{
_drawable = _metalLayer.nextDrawable();
ObjectiveCRuntime.retain(_drawable.NativePtr);
}
}
private protected override void WaitForIdleCore()
{
MTLCommandBuffer lastCB = default(MTLCommandBuffer);
lock (_submittedCommandsLock)
{
lastCB = _latestSubmittedCB;
ObjectiveCRuntime.retain(lastCB.NativePtr);
}
if (lastCB.NativePtr != IntPtr.Zero && lastCB.status != MTLCommandBufferStatus.Completed)
{
lastCB.waitUntilCompleted();
}
ObjectiveCRuntime.release(lastCB.NativePtr);
}
