Should shrink savestate screenshots if too large

[hrydgard]

It's not really motivated to have 12MB JPEGs as savestate thumbnails, which can happen at 10x render resolution.

Let's downsample to some reasonable size.

[hrydgard]

actually this seems to already have been fixed, max is 960x544.

I don't see how the user managed to create such a massive screenshot... maybe from an older version.

[hrydgard]

Never mind, there are issues, like in "Skip buffer effects" mode, the size restriction isn't applied correctly in all cases. And there might be other loopholes, like Auto mode...