2010/9/22 Marius Gröger <marius.groeger@xxxxxxxxxxxxxx>: > Am 22.09.2010 06:40, schrieb Alex Deucher: >> >> 2010/9/21 Marius Gröger<marius.groeger@xxxxxxxxxxxxxx>: >>> >>> On 10.09.2010 17:20 Alex Deucher wrote: >>>> >>>> The scaler doesn't appear to work with interlaced modes as you've >>>> noticed; I don't off hand know whether it can be made to or not. >>>> Unfortunately, I won't have time to dig into this more for a while. >>> >>> Is there public documentation available wrt this matter? >>> www.x.org/docs/AMD/ >>> appears to focus on 3D stuff primarily... >>> >> >> Not at the moment, however, you could implement underscan using the 3D >> engine to do the scaling rather than the display scalers. I think you >> could even do it with randr crtc transforms (which use the 3d engine). > > Are you referring to xrandr --transpose? At least for me this seems to be > only partially implemented. For example: > > xrandr --output HDMI-0 --mode 1920x1080@50i --transform > 0.5,0,0,0,0.5,0,0,0,1 > > This does in fact render the image scaled down by 50%. However, > > xrandr --verbose > > yields: > > HDMI-0 connected 1920x1080+0+0 (0xfd) normal (normal left inverted right x > axis y axis) 1600mm x 900mm > ... > Transform: 1.000000 0.000000 0.000000 > 0.000000 1.000000 0.000000 > 0.000000 0.000000 1.000000 > > Translation doesn't work at all, so it's not a viable workaround. The transform shader code in the exa composite code probably needs adjusting to deal properly with translation. Alex > > Sigh. This is all kind of frustrating... > > Regards, > Marius > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
