using System;

using Essgee.EventArguments;

namespace Essgee.Emulation.Video
{
	interface IVideo
	{
		(int X, int Y, int Width, int Height) Viewport { get; }

		event EventHandler<RenderScreenEventArgs> RenderScreen;
		void OnRenderScreen(RenderScreenEventArgs e);

		event EventHandler<EventArgs> EndOfScanline;
		void OnEndOfScanline(EventArgs e);

		event EventHandler<SizeScreenEventArgs> SizeScreen;
		void OnSizeScreen(SizeScreenEventArgs e);

		(string Name, string Description)[] RuntimeOptions { get; }

		object GetRuntimeOption(string name);
		void SetRuntimeOption(string name, object value);

		void Startup();
		void Shutdown();
		void Reset();
		void Step(int clockCyclesInStep);

		void SetClockRate(double clock);
		void SetRefreshRate(double refresh);
	}
}