/// <summary>
/// Initializes graphics objects by loading a specified assembly, instancing the first type that implements
/// <see cref="IGraphicsFactory"/>, and using the result to initialize the other graphics objects
/// </summary>
public static void Initialize( GraphicsInitialization init )
{
AppDomain.CurrentDomain.AssemblyResolve +=
delegate( object sender, ResolveEventArgs args )
{
string renderingDir = Path.GetDirectoryName( init.RenderingAssembly );
return Assembly.LoadFrom( Path.Combine( renderingDir, args.Name + ".dll" ) );
};
Assembly assembly;
if ( File.Exists( init.RenderingAssembly ) )
{
assembly = Assembly.LoadFrom( init.RenderingAssembly );
}
else
{
assembly = AppDomain.CurrentDomain.Load( init.RenderingAssembly );
}
IGraphicsFactory factory = GetGraphicsFactoryFromAssembly( assembly, init );
factory.CustomTypes.ScanAssembly( assembly );
Initialize( factory );
}
/// <summary>
/// Creates graphics initialization data for OpenGl on windows
/// </summary>
public static GraphicsInitialization OpenGlCgWindows( )
{
GraphicsInitialization init = new GraphicsInitialization
(
"Rb.Rendering.OpenGl",
"Rb.Rendering.OpenGl.Cg",
"Rb.Rendering.OpenGl.Windows"
);
return init;
}
/// <summary>
/// Finds a type in the specified assembly that implements IGraphicsFactory, and returns an instance of that type
/// </summary>
private static IGraphicsFactory GetGraphicsFactoryFromAssembly( Assembly assembly, GraphicsInitialization init )
{
foreach ( Type type in assembly.GetTypes( ) )
{
if ( type.GetInterface( typeof( IGraphicsFactory ).Name ) != null )
{
IGraphicsFactory factory = ( IGraphicsFactory )Activator.CreateInstance( type, init );
return factory;
}
}
throw new ArgumentException( string.Format( "No type in assembly \"{0}\" implemented IGraphicsFactory", assembly.FullName ) );
}