On Wed, 23 Jun 2004 07:25:24 +0200, Stefan Lucke <[EMAIL PROTECTED]> wrote: > > On Mittwoch, 23. Juni 2004 05:32, Alex Deucher wrote: > > On Sat, 19 Jun 2004 10:40:49 +0200, Stefan Lucke > > <[EMAIL PROTECTED]> wrote: > > > > > > Hi, > > > > > > based upon Michael Deucher's radeon_xvalpha.diff found at > > > > It's actually Alex Deucher. > > Sorry for that.
No problem. > > [ .. ] > > > > The only drawback is that any other screen region (without alpha values) > > > is black. > > > > > > > The reason I didn't implement per-pixel alpha blending initially was > > that it requires a framebuffer format with alpha values like 8888 or > > 4444, etc. Without that, it's not much use. > > Yes, but that most parts of screen went black is more important. > So I see video via Xv and a nice alpha blended OSD. > I think the reason for that is that XFree has no idea of alpha and sets > alpha to 0. > It's been a while since I messed with this, but you may want to mess with the graphics levels since you can adjust the graphics plane and the overlay separately. Unfortunately, I don't remember how they interact in per-pixel mode. > Is there a way to specify the alpha value to use (255) when operating > in rgba-32 ?. Probably, when using 24 bpp, on radeon it's actually 32 bits internally. you could probably just adjust what the additional bits get set to. I suspect it's already set to 255 though. If you really wanted to you could probably also add a hack to adjust the alpha value of the framebuffer when Xv attributes are changed, however, I'm not too familiar with the DIX parts that may be involved. Alex > > Stefan Lucke > _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
