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First post, by deusfaux

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...Though I think I figured out most of it by now.

A question:

When the full and windowresolution settings are used, those scaling operations are hardware based, and performed by the GPU and it's drivers and whatever algorithms it uses, correct?

This can be contrasted to the scaler setting, which is effectively software scaling, performed by DosBox itself, and calculated on the CPU.

Right?

Reply 1 of 2, by kalirion

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I'm thinking that's mostly correct, but it might depend on the output method. For example, do GPU/drivers know how to do HQ scaling, or does DosBox end up doing extra work with the opengl-hq output method (in the CVS builds which support it.)

Reply 2 of 2, by deusfaux

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That's a good question.

Also, any operations performed by the scaler setting are done BEFORE the full and windowresolution settings, right?

And both of those are performed before any additional scaling you have set in your GPU drivers (set to fullscreen, for example).

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