[RFC] drm: add overlays as first class KMS objects
keithp at keithp.com
Mon Apr 25 16:16:18 PDT 2011
On Mon, 25 Apr 2011 15:12:20 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> Overlays are a bit like half-CRTCs. They have a location and fb, but
> don't drive outputs directly. Add support for handling them to the core
> KMS code.
Are overlays/underlays not associated with a specific CRTC? To my mind,
overlays are another scanout buffer associated with a specific CRTC, so
you'd create a scanout buffer and attach that to a specific scanout slot
in a crtc, with the 'default' slot being the usual graphics plane.
keith.packard at intel.com
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