As its title suggests, this patch makes the PSP's Grand Theft Auto games (GTA Vice City Stories and GTA Liberty City Stories) render at native resolution on the PSVita (960×544).
This allows for a sharper and much-nicer looking image without the blurriness that upscaling a 480×272 (PSP's native resolution) image brings about. Work on this patch started a short while ago with TheFlow first mentioning it publicly on March 1st and yesterday, he made another Reddit thread demonstrating his progress.
"First picture is original, second is native res, third is native res with mipmap patch"
And for those wondering, no this will not work on all PSP games.
These type of patches are game-specific so don't expect the ability to render all games at a higher resolution similar to what PPSSPP does
I don't fully remember the details right now but I think the reason this is doable with both PSP GTA games is because they actually render an internal framebuffer at 512x320 which is then supersampled/downscaled to the PSP native 480x272 with code that decently handles arbitrary resolution arguments (lower or higher than default), so patching an increased internal resolution is enough to render at higher resolutions, or maybe as a different approach even bypass the whole downscaling process/code...
...BUT only as a starting point, because in my case there were a lot of things that still needed manual adjustments and patching: some texts and HUD elements were displaced, some effects were off (glowing weapons), so a bunch of random little details were slightly broken because of the now different game resolution. I briefly wrote about my findings on here, here and here (last part of the forum posts).
More details can be found on the Wololo post and this reddit thread.
(Edit) And released! Check the threadmark for links and instructions!
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