/// <summary>
/// Sets the current mode to text mode 80x50.
/// </summary>
private void SwitchTo80x50TextMode()
{
var mode = new Modes.TextMode(80, 50, 8, this);
this.CurrentMode = mode;
VirtualMachine.OnVideoModeChanged(EventArgs.Empty);
}
/// <summary>
/// Initializes a new display mode.
/// </summary>
/// <param name="videoMode">New display mode.</param>
public void SetDisplayMode(VideoMode10 videoMode)
{
VirtualMachine.PhysicalMemory.Bios.VideoMode = videoMode;
VideoMode mode;
switch (videoMode)
{
case VideoMode10.ColorText40x25x4:
mode = new Modes.TextMode(40, 25, 8, this);
break;
case VideoMode10.ColorText80x25x4:
mode = new Modes.TextMode(80, 25, this.verticalTextResolution, this);
break;
case VideoMode10.ColorGraphics320x200x2A:
case VideoMode10.ColorGraphics320x200x2B:
throw new NotImplementedException("CGA graphics not implemented.");
case VideoMode10.ColorGraphics320x200x4:
mode = new Modes.EgaVga16(320, 200, 8, this);
break;
case VideoMode10.ColorGraphics640x200x4:
mode = new Modes.EgaVga16(640, 200, 8, this);
break;
case VideoMode10.ColorGraphics640x350x4:
mode = new Modes.EgaVga16(640, 350, 8, this);
break;
case VideoMode10.Graphics640x480x4:
mode = new Modes.EgaVga16(640, 480, 16, this);
break;
case VideoMode10.Graphics320x200x8:
Sequencer.SequencerMemoryMode = SequencerMemoryMode.Chain4;
mode = new Modes.Vga256(320, 200, this);
break;
default:
throw new NotSupportedException();
}
SetDisplayMode(mode);
}
