Op 08-12-16 om 16:43 schreef Daniel Vetter:
On Thu, Dec 08, 2016 at 02:45:27PM +0100, Maarten Lankhorst wrote:
The current api doesn't take into account that whenever properties like rotation or z-pos change we have to wait for vblank. To make sure that we wait correctly, err on the side of caution and wait whenever a plane is added to state.
Why do we need to wait when rotation or zpos has changed? I'm a bit lost ... So rotation makes sense since often that means a special, rotated mapping (or a different offset on omap's TILER as a different example). But z-pos I have no idad why that matters.
It was meant as example, blocking commit always waits for the changes to be visible before returning, from what I understand. So if any plane property changes we have to wait for the changes to be visible first.
~Maarten