[SDL] SDL 1.3 image scaling

Alex Barry alex.barry at gmail.com
Wed Dec 22 16:05:47 PST 2010

Also, if it's an image you have outside the program (like a png or bmp), and
you know you'll have to scale it, you could just scale it outside the
program with GIMP, if all else fails.  If it's being scaled on a
per-computer basis, then you might want to look into what other modes are
supported (you might have to grab the latest repository version?).

Take care,

On Wed, Dec 22, 2010 at 2:42 PM, Mason Wheeler <masonwheeler at yahoo.com>wrote:

> Actually, nevermind.  I was reading the code wrong.  It looks like these
> different modes are supported.  Maybe they just don't do all that much under
> D3D.  Try using the GL renderer and see if it looks any better.
> ------------------------------
> *From:* Mason Wheeler <masonwheeler at yahoo.com>
> ***Subject:* Re: [SDL] SDL 1.3 image scaling
> Well that's odd..  It looks like the code in D3D_RenderCopy actually
> supports different scale modes, but D3D_SetTextureScaleMode doesn't actually
> support *setting* the mode!  You ought to write up a patch for it.
> ------------------------------
> *From:* ebyard <e_byard at yahoo.co.uk>
> ***Subject:* [SDL] SDL 1.3 image scaling
> Hi Folks
> I'm scaling an image from 1024x768 to 1280x1024, and the result looks like
> a car crash. It's all pixellated and horrible, whereas if I scale it in
> Fireworks/GIMP etc it looks OK.
> I see a comment that "SDL_TEXTURESCALEMODE_FAST is the only type supported
> at this time" and the SDL source seems to confirm it.
> Is there any way to get it better? I am using DirectX - what about GDI or
> something??
> Any help much appreciated!
> Thanks
> Ed
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