Hi! Dne četrtek, 15. oktober 2020 ob 11:36:41 CEST je Maxime Ripard napisal(a): > When using the scaler on the A10-like frontend with single-planar formats, > the current code will setup the channel 0 filter (used for the R or Y > component) with a different phase parameter than the channel 1 filter (used > for the G/B or U/V components). > > This creates a bleed out that keeps repeating on of the last line of the > RGB plane across the rest of the display. The Allwinner BSP either applies > the same phase parameter over both channels or use a separate one, the > condition being whether the input format is YUV420 or not. > > Since YUV420 is both subsampled and multi-planar, and since YUYV is > subsampled but single-planar, we can rule out the subsampling and assume > that the condition is actually whether the format is single or > multi-planar. And it looks like applying the same phase parameter over both > channels for single-planar formats fixes our issue, while we keep the > multi-planar formats working properly. > > Reported-by: Taras Galchenko <tpgalchenko@xxxxxxxxx> > Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx> Acked-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx> Best regards, Jernej _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
