/// <summary>
/// Initializes the Direct3D 9 device.
/// </summary>
private static void InitializeD3D9()
{
lock (_d3D9Lock)
{
_referenceCount++;
if (_referenceCount == 1)
{
_d3D9 = new D3D9();
}
}
}
/// <summary>
/// Un-initializes the Direct3D 9 device, if no longer needed.
/// </summary>
private static void UninitializeD3D9()
{
lock (_d3D9Lock)
{
_referenceCount--;
if (_referenceCount == 0)
{
_d3D9.Dispose();
_d3D9 = null;
}
}
}