gdImageCopyResampled issue under XP

Hi,

I'm using gd 2.0.34 with VS 2005 under Windows XP.
I have a problem with the gdImageCopyResampled function which doesn't produce the same result when my project is compiled in debug and when it's compiled in release : in debug the final png image is fine but in release some colors are degraded (see the 2 images attached).

Here is my test code :

void bugcopyresample()
{
  FILE *outpng,*inpng;
  int white;
  gdImagePtr dst,src;
  // build dst image
  dst = gdImageCreateTrueColor(100,100);
  white = gdImageColorAllocate(dst,255,255,255);
  gdImageAlphaBlending(dst,0);
  gdImageFill(dst, 0, 0, white);
  // open src image
  inpng = fopen("testimage.png", "rb");
  if (inpng!=NULL)
  {
    src=gdImageCreateFromPng(inpng);
    fclose(inpng);
  }
  if (src!=NULL)
  {
    gdImageCopyResampled(dst,src,0,0,0,0,dst->sx,dst->sy,src->sx,src->sy);  
    // SAVE TO PNG
    outpng = fopen("bugCopyResampled.png","wb");
    if (outpng!=NULL)
    {
      gdImagePng(dst,outpng);
      fclose(outpng);
    }
    gdImageDestroy(src);
  }
  gdImageDestroy(dst);
}

Is there a solution or will there be a patch ?

Thanks for your help.

-- 
Florent Lejeune
Développeur
 
Articque
Moulin des Roches
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