On Thu, Mar 03, 2005 at 10:04:02AM +0200, Ville Syrjälä wrote: > On Thu, Mar 03, 2005 at 04:48:58AM +0100, Roland Scheidegger wrote: > > here's a patch which mainly does 3 things: > > - convert sis, mach64, and radeon to spantmp2. > > The sis and mach64 drivers got a slight change, previously you could not > > read back alpha values (always 0xff) and I don't think there was a good > > reason for that? > > AFAICS mach64 doesn't apply either the blend equation or the blend > functions to the alpha values. You can choose to write either 0, 1, As, > 1-As, Ad or 1-Ad to the destination :(
Oh and a quick look at the mach64 driver indicats that it always chooses to write 0. -- Ville Syrjälä [EMAIL PROTECTED] http://www.sci.fi/~syrjala/ ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=click -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
