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  Scale2X Java Source  (Read 2399 times)
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Offline kevglass

JGO Kernel


Medals: 120
Projects: 23
Exp: 18 years


Coder, Trainee Pixel Artist, Game Reviewer


« Posted 2005-07-21 14:35:48 »

I've just written code for the scale2x and 3x algorithms. This algorithm takes old style sprites (you know, thick colours, defined lines) and attempts to scale them up without losing detail. Code is here, with some minor examples:

http://www.cokeandcode.com/scale2x/

Kev

Offline Matzon

JGO Knight


Medals: 19
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I'm gonna wring your pants!


« Reply #1 - Posted 2005-07-21 14:41:53 »

erikd, hope you're reading this - coz you gotta implement it in JEmu!

Offline kevglass

JGO Kernel


Medals: 120
Projects: 23
Exp: 18 years


Coder, Trainee Pixel Artist, Game Reviewer


« Reply #2 - Posted 2005-07-22 10:21:58 »

Now I've worked out hot to post images [never knew, after years] :

Source Image:



Standard 3x Scaling:



Scale3x Scaling:



I'm impressed by the algorithm at least. Note how the colours are intact, no blurring and relatively smooth lines even at 3x scale up. I've not tried it but I guess you could scale down to exact size you wanted.

Kev

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Offline Matlu

Junior Member




Hasta La Victoria Siempre!


« Reply #3 - Posted 2005-07-24 10:22:43 »

very impressive Smiley I see it's also used in WinUAE, I'm going to try it Smiley Had no time to play with emulators recently Sad

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Offline dgam3z

Junior Newbie




Java games rock!


« Reply #4 - Posted 2005-07-26 02:57:12 »

Thanks for sharing the code. I will probably use it on one of my projects.  Smiley
Offline erikd

JGO Ninja


Medals: 16
Projects: 4
Exp: 14 years


Maximumisness


« Reply #5 - Posted 2005-08-27 13:55:04 »

erikd, hope you're reading this - coz you gotta implement it in JEmu!

These classes are real nice! In the JEF library there has been a scale2x renderer for quite some time already, though. The algorithm in JEmu was ported from AdvanceMAME. But I guess now I'll have too implement scale3x too Wink
This weekend I'll try to find time to upload a new version of JEmu2, with the scale2x renderer and scanlines renderer options exposed in the front end.

Offline g666

Junior Member





« Reply #6 - Posted 2005-08-29 22:53:27 »

That is nice, the enlarged sprites actually have a cool hand drawn look to them now.  Cheesy

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