Ask HN: Program to upscale windows display?

I may be using the wrong term, but I sometimes need to view material that would be optimal in a higher resolution than the highest native display resolution my laptop has.

Example:

Say the screen max, native resolution is 1024x768. The target would be an integer multiple, say 2x = 2048x1536.

The method could range from simple, just drop every odd pixel, for example, or average the two together, for another example.

Has anyone done this? Can it be done?