Re: NSImage and PNG

[Andreas Höschler]

Hi,

> > Not sure if it's the same problem, but Riccardo Mottola had a similar
> > problem on (I think) solaris. It turned out that gcc was miscompiling
> > NSBitmapImageRep.m or NSBitmapImageRep+JPEG.m and caused the jpeg 
> > check
> > to return true for all images (and the load would later fail since the
> > tiff was not a jpeg).
>
> I have checked that by adding a log statement in 
> NSBitmapImageRep+JPEG.m. The JPG test returns NO for my TIFF.

I was too quick. This indeed is the problem. In NSBitmapImageRep+JPEG.m

+ (BOOL) _bitmapIsJPEG: (NSData *)imageData
{
...
  jpeg_read_header(&cinfo, TRUE);
...
}

This line somehow makes the method return YES for my TIFF. So how do we 
fix this now? This problem seems to only occur on Solaris, otherwise 
others would already have complained.

Regards,

  Andreas