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Screenshot bug

Open josejl1987 opened this issue 8 years ago • 9 comments

I tried the screenshot function on Trails of Cold Steel II,and the resulting image is a bit off. I think it's just that the red channel on the bmp output is one pixel off to the left. I made a manual edit on GIMP so you can see the difference.

Original screenshot Manual edit

josejl1987 avatar Sep 12 '16 17:09 josejl1987

Screenshots look the same to me.

PS: I suppose the game runs in RAM mode.

Rinnegatamante avatar Sep 12 '16 18:09 Rinnegatamante

They don't. Look at the left of the top screenshot. You see the red line. also, it looks blurrier than the bottom one?

gnmmarechal avatar Sep 12 '16 19:09 gnmmarechal

Yeah,it runs on RAM mode.

The difference is slightly noticeable ,but it's there.

josejl1987 avatar Sep 12 '16 19:09 josejl1987

Yep noticed right now but i don't know why this happens. On next release MMC screenshots will be fixed. I suggest you to wait that release andt hen we can check if the problem appears in MMC too.

Rinnegatamante avatar Sep 12 '16 19:09 Rinnegatamante

@josejl1987 Can you check if using this solves the problem? rinCheat.zip

Rinnegatamante avatar Sep 12 '16 20:09 Rinnegatamante

Still the same, I'm afraid.

I took a quick glance at the screenshot code, and I don't see anything strange myself.

What color format does the Vita framebuffer use? From your code I'd say it's B8G8R8A8.

Is there any chance it could be using some strange 16 bit mode? Falcom games did it on PSP,and sometimes I see color banding similar to 16 bit images.

Would it be hard to dump the framebuffer in its original format?

josejl1987 avatar Sep 12 '16 22:09 josejl1987

It uses ABGR: https://github.com/vitasdk/vita-headers/blob/master/include/psp2/display.h#L34

Rinnegatamante avatar Sep 13 '16 08:09 Rinnegatamante

I can confirm this also happens on screenshots from Dragon Quest Builders.

Original: pcse00912_1024_017_original

Fixed: pcse00912_1024_017_fixed

DarkPulse avatar Oct 29 '16 00:10 DarkPulse

IF you really need good screenshots, atm you can start the game by holding L trigger. This will start the game in MMC mode where screenshots should be fixed.

I'm still investigating the issue to find a solution.

Rinnegatamante avatar Oct 29 '16 08:10 Rinnegatamante