Emulator

yes.

This might take a while at 4xIR (and screenshots will be 20MB each).

Ok so maybe make this a "Dump IR image" or something to that effect.

But it wouldn't be XFB compatible. Or you have to combine them on your own.

Don't forget, if you dump the IR, then it won't be adjusted to the correct aspect ratio.

I'm also interested in this feature. I would like to take screenshots using the game's internal resolution since not all games use the same resolution (even if it was scaled to fit the CRT screen of the era).

Obviously increasing the resolution through the emu should have no effect because if a game is 640x480 internally, that's the resolution the screenshot should have regardless of what enhancements you are using.

Basically, I would like a screenshot option that works like other emulators (such as MAME), that regardless of window size, enhancements, or filters, the screenshot comes out like the original programmed internal resolution.

There is also the question of what to do with PAL games, which use non-square pixels.

I really don't think the idea of a 640x480 screenshot when you're running at different settings is useful enough to implement. Sure, export it at the current settings (instead of window size) sounds reasonable, but not that.

It just gets confusing at that point as to what you're getting or what you want. If you want a messed up image with the wrong aspect ratio... that's what you'll likely get at times.

It's worse, in interleaved mode, you'll get only the upper or lower half of the screen. Or if we spend more code, maybe you'll end with two screenshots at once ...