On Fri, 2003-11-21 at 04:39, Alex Deucher wrote: > > > I realize that I could attempt to use it for render accel, but I was > > > hoping to tie it into Keithp's compositing extension > > > (http://www.freedesktop.org/Software/TranslucentWindows) to support > > > alpha blended windows, not just hw accelerated AA text.
What else would xcompmgr be using, if not RENDER? > [...] I may need to use the 3d engine, 'May'? > which then gets into a whole new can of worms with regard to state and > locking. I doubt it'll be all that bad, and anyway, you can worry about that once you have something working... > > >>Transparent bitblits are supported by XAA's normal bitblit > > functions, > > > > > > how are these used? are there any apps that use them? render? > > > > Plain old ScreenToScreen copy. trans_color (the last argument to the > > SetupScreenToScreenCopy function) holds the (source) color which is > > handled to be transparent. It's as simple as that. (hint, hint: > > sis310_accel.c) And MD is right, it's not a plain "transparent" > > bitblit, > > it's colorkeyed in fact (but only using one color key, not a range). > > Isn't used very often, though. > > Thanks for the pointers. I'll take a look. It may not be worth the > effort. Colour-keyed blits have been implemented in the radeon driver for ages... problem is, they're not what you'd like them to be. :) (XDirectFB uses them for SHAPE quite nicely though) -- Earthling Michel DÃnzer | Debian (powerpc), X and DRI developer Software libre enthusiast | http://svcs.affero.net/rm.php?r=daenzer _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
