Need help with saving PNGs

SDL Development
1

I wrote up a simple patch to add PNG-saving capabilities to SDL_Image. It almost works, too. Problem is, the colors come out all scrambled, and I don’t know enough C to figure out what’s wrong. Can anyone take a look at this and fix it up a bit?

Use case:
1.) Load a PNG image with IMG_LoadPNG_RW.
2.) Save it with IMG_SavePNG_RW.
3.) See if they’re identical or not.
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2

Hi,

there is code in pygame to do this:
http://www.pygame.org/wiki/cvs

in src/imageext.c

cu,On Sun, Apr 5, 2009 at 9:38 AM, Mason Wheeler wrote:

I wrote up a simple patch to add PNG-saving capabilities to SDL_Image. It
almost works, too. Problem is, the colors come out all scrambled, and I
don’t know enough C to figure out what’s wrong. Can anyone take a look at
this and fix it up a bit?

Use case:
1.) Load a PNG image with IMG_LoadPNG_RW.
2.) Save it with IMG_SavePNG_RW.
3.) See if they’re identical or not.

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