[PATCH 4/5] drm/i915: Add rotation support for the cursor plane (original) (raw)

Ville Syrjälä ville.syrjala at linux.intel.com
Fri Feb 14 03:39:29 PST 2014

On Fri, Feb 14, 2014 at 04:31:17PM +0530, Sagar Arun Kamble wrote:

On Wed, 2014-02-12 at 23:15 +0200, ville.syrjala at linux.intel.com wrote: > From: Ville Syrjälä <ville.syrjala at linux.intel.com> > > The cursor plane also supports 180 degree rotation. Add a new > "cursor-rotation" property on the crtc which controls this. > > Unlike sprites, the cursor has a fixed size, so if you have a small > cursor image with the rest of the bo filled by transparent pixels, > simply flipping the rotation property will cause the visible part > of the cursor to shift. This is something to keep in mind when > using cursor rotation. By flipping you meant setting 180 degree rotation?

Yes.

Don't we have to adjust the cursor base as well to the lower right corner apart from setting the control bit?

No, the hardware does that automagically. Hmm. Except on gen4 apparently. Looks like I need to test on gen4, and fix it if it's really the case.

-- Ville Syrjälä Intel OTC

More information about the dri-devel mailing list