2009-01-19  Tor Lillqvist  <tml@iki.fi>

	Bug 568305 - gdk-pixbuf mishandles BI_BITFIELDS bmps

	* io-bmp.c (OneLine32): Use unsigned variables so that we can
	right-shift them without risk of sign extension. Don't "reverse"
	the alpha value, actually storing 0xFF-alpha, but use it as such.


svn path=/trunk/; revision=22172