Hi Dae, I am attaching one patch which adds the support of rotation on top of Tomi's DSS library. But this patch is created against the patches posted by tomi long back. You can have look at _dispc_calc_and_set_row_inc and _dispc_set_rotation_mirroring function for reference to add the YUV support. I have tested it with YUV, UYVY, RGB16 and RGB24u pixel format. Currently it supports pixel and row increment calculation only for rotation case. Thanks and Regards, Hardik Shah > -----Original Message----- > From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap- > owner@xxxxxxxxxxxxxxx] On Behalf Of InKi Dae > Sent: Wednesday, March 11, 2009 10:28 AM > To: Tomi Valkeinen > Cc: linux-omap@xxxxxxxxxxxxxxx > Subject: Hello Tomi Valkeinen, I have some questions about dss2 driver. > > I am using your dss2 driver downloaded from your git server and tried > to rotate an image(RGB24U and YUV2 format) using OMAPFB_ROT_DMA > command. > but I can't see rotated image on screen. I added variables for > rotating like below. as the result, LCD Panel is stoped. > > omapfb.rotate=2 > omapfb.vrfb=n > > > and then I tried again using OMAPFB_ROT_VRFB command like below. > > omapfb.rotate=2 > omapfb.vrfb=y > > In this case, I can see rotated image(only RGB24U format) on screen. > You asid "Rotation and mirroring currently only supports RGB565 and > RGB8888 modes. VRFB does not support mirroring" through > /Documentation/arm/OMAP/DSS file. > > Doesn't your dss2 driver support DMA rotation? > I am trying to add rotation feature for YUV2 image using VRFB to your > dss2 driver. > > for this, I think that it have to change rot and mirror become 0 if > rotation_type is OMAPFB_ROT_VRFB to be rot=ofbi->rotation and mirror = > ofbi->mirror (in omapfb-main.c file) and > add codes for calculating offset0, offset1, pixel increment and row > increment value for YUV2 format also pixel size becomes 4 in YUV2 case > (in dispc.c fild). > omap_vrfb_setup function must be modifed also (in vrfb.c file)? > > Do you have any idea? > I need your help and advice. > > Thank you. > - InKi- > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html
Attachment:
0002-Changes-Done-to-DSS-Library.patch
Description: 0002-Changes-Done-to-DSS-Library.patch
