Suggesting new interpolation method \ VOGONS

Suggesting new interpolation method

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First post, by videogamer555

Posted on 2017-01-18, 20:00

videogamer555 Offline

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With normal2x and normal3x interpolation, it does "nearest neighbor". WIth any of the others (such as 2xsai, and supereagle) it uses a special technique to guess the interpolated pixels in a way that does not smooth the brightness levels. However, I think linear interpolation would be good in some situations. So here I'm propoosing a new interpolation method in the next SVN version of DOSBox. It is 2x linear interpolation, and should be called "linear2x".

Reply 1 of 3, by Qbix

Posted on 2017-01-18, 20:21

Qbix Offline

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I assume you mean bilinear interpolation.
Which wouldn't be difficult to code, (I probably have the code of it in one of my local dosbox trees).
but is very similar to what the hardware opengl scaler does.

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Reply 2 of 3, by videogamer555

Posted on 2018-09-19, 08:40

videogamer555 Offline

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Qbix wrote:
I assume you mean bilinear interpolation.
Which wouldn't be difficult to code, (I probably have the code of it in one of my local dosbox trees).
but is very similar to what the hardware opengl scaler does.

Have you added bilinear interpolation yet?

Reply 3 of 3, by Qbix

Posted on 2018-09-19, 08:58

Qbix Offline

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no, as i said. opengl does that already for you ?
Any reason why it isn't enough ?

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