Feature for screen scaling? \ VOGONS

Feature for screen scaling?

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First post, by Picard

Posted on 2022-09-27, 19:30

Picard Offline

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Rank: Newbie
Posts: 5
Joined: 2022-05-21, 18:49
Location: Germany

Hello,
I hope this category is acceptable for a feature suggestion.

As far as I can see, DOSBox offers two options for display resolution or screen size:
original (1:1) and full-screen.

When playing on my older Thinkpad, that's fine.
But when playing on my desktop PC with 27" hi-res-display, then "orginal" is way to small ... and"full-screen" is so big that graphics get ugly. (Remember, those games were played on 14" monitors back then).

So what? I would like to have a third option: "doubled".
So instead of 640 * 400 you would geht 1280 * 800.
I hope, this is not too hard to implement.

Reply 1 of 3, by jmarsh

Posted on 2022-09-28, 00:01

jmarsh Offline

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Rank: Oldbie
Posts: 1379
Joined: 2014-01-04, 09:17

Use windowed mode with the window set to the size you want... or else use a shader to restrict the active display area when fullscreened.

Reply 2 of 3, by Picard

Posted on 2022-09-28, 15:38

Picard Offline

Rank Newbie

Rank: Newbie
Posts: 5
Joined: 2022-05-21, 18:49
Location: Germany

Hello jmarsh,
thank you!
I had looked into the DOSBox manual where these options aren't mentioned in detail.
But after googling "windowed mode", I got several other sources:
https://www.dosgamers.com/dos/dosbox-dos-emul … reen-resolution
https://stackoverflow.com/questions/15944089/ … f-dosbox-window
https://www.gog.com/forum/general_archive/any … screen_windowed

That helped!

Reply 3 of 3, by Rincewind42

Posted on 2022-10-21, 07:39

Rincewind42 Offline

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Rank: Member
Posts: 130
Joined: 2022-03-29, 01:42

Or use DOSBox Staging where you can set the exact viewport resolution in fullscreen with the viewport_resolution config param (e.g. viewport_resolution = 1280x800).

I introduced this feature for this very reason you mentioned; to mimic the effective screen size of those old monitors on larger modern displays.

I think all emulators should have such a feature in fullscreen, and in fact, I'm going to create patches for all of them I'm using (e.g. VICE badly needs it too).

DOS: Soyo SY-5TF, MMX 200, 128MB, S3 Virge DX, ESS 1868F, AWE32, QWave, S2, McFly, SC-55, MU80, MP32L
Win98: Gigabyte K8VM800M, Athlon64 3200+, 512MB, Matrox G400, SB Live
WinXP: Gigabyte P31-DS3L, C2D 2.33 GHz, 2GB, GT 430, Audigy 4

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