private void SetWindowIcon(IEnumerable <Image <Rgba32> > icons)
{
// Turn each image into a byte[] so we can actually pin their contents.
// Wish I knew a clean way to do this without allocations.
var images = icons
.Select(i => (MemoryMarshal.Cast <Rgba32, byte>(i.GetPixelSpan()).ToArray(), i.Width, i.Height))
.ToList();
// ReSharper disable once SuggestVarOrType_Elsewhere
Span <GCHandle> handles = stackalloc GCHandle[images.Count];
Span <GlfwImage> glfwImages = new GlfwImage[images.Count];
for (var i = 0; i < images.Count; i++)
{
var image = images[i];
handles[i] = GCHandle.Alloc(image.Item1, GCHandleType.Pinned);
var addrOfPinnedObject = (byte *)handles[i].AddrOfPinnedObject();
glfwImages[i] = new GlfwImage(image.Width, image.Height, addrOfPinnedObject);
}
GLFW.SetWindowIcon(_glfwWindow, glfwImages);
foreach (var handle in handles)
{
handle.Free();
}
}