Supersampling / setting internal resolution greater than the output window does not clamp the viewport to the window size

[LethalPlacebo]

Issue Summary:

In MGS2, if you use an internal resolution that is higher than your output resolution, the game will be zoomed in. For example, my output resolution is 2560x1440, left at 0 in the ini file. Increasing Internal Resolution to 3840x2160 results in only being able to see the top-left corner of the screen. As far as I can tell, this does not happen in MGS3.

MGSHDFix & Game Version Numbers:

MGSHDFix v2.4.0, MGS2 v2.0.1, Steam.

Log Files:

MGSHDFix.log

Reproduction:

Increase the internal resolution and make sure it's lower than output resolution, then play MGS2.

[PunishedFiddle]

I have quite the same issue in MGS2 (not tested MGS3), but I'm not sure if It's an internal resolution problem. Probably has something to do with high DPI scaling. So my monitor is 3840x2560 (3:2), If i go borderless fullscreen in 3840x2160 and 3840x2560 with framebuffer fix off then output will zoom.

If enable framebuffer fix and activate borderless fullscreen mode, then it stretch output to fullscreen regardless of resolution aspect ratio: 3d and 2d graphic in 3840x2160 will be stretched vertically, in 3840x2560 only 2d elements will be stretched. I know it's intended.

So the only way can play it without any stretching (3d, 2d, final output) is if play it in 3840x2160 with framebuffer fix off with letterboxing, which is okay. Any other setting will result in any kind of stretching (borderless off/on, framebuffer on) or zoom (borderless on, framebuffer fix off).

[LethalPlacebo]

I have quite the same issue in MGS2 (not tested MGS3), but I'm not sure if It's an internal resolution problem. Probably has something to do with high DPI scaling. So my monitor is 3840x2560 (3:2), If i go borderless fullscreen in 3840x2160 and 3840x2560 with framebuffer fix off then output will zoom.

If enable framebuffer fix and activate borderless fullscreen mode, then it stretch output to fullscreen regardless of resolution aspect ratio: 3d and 2d graphic in 3840x2160 will be stretched vertically, in 3840x2560 only 2d elements will be stretched. I know it's intended.

So the only way can play it without any stretching (3d, 2d, final output) is if play it in 3840x2160 with framebuffer fix off with letterboxing, which is okay. Any other setting will result in any kind of stretching (borderless off/on, framebuffer on) or zoom (borderless on, framebuffer fix off).

Good to know. I dunno if it helps at all but my scaling in Windows 10 is set to 100%, so no scaling should be happening.

[ShizCalev]

Probably has something to do with high DPI scaling.

MGSHDFix already flags the game process as High DPI Aware (which fully fixes that issue on a Windows level), so it's definitely a viewport issue with the increased internal resolution not being scaled to the actual output window's resolution.