On Thursday, July 13th, 2023 at 10:23, Pekka Paalanen <pekka.paala...@collabora.com> wrote:
> > + * To perform front-buffer rendering, user-space should set FB_ID to the > > + * previous framebuffer in atomic commits. > > * CRTC_ID: > > * Mode object ID of the &drm_crtc this plane should be connected to. > > * > > It's unclear to me what "previous framebuffer" means, although I know > what you want to say. How about: > > When a KMS client is front-buffer rendering, it should set FB_ID to > the same front-buffer FB on each atomic commit. This implies to the > driver that it needs to re-read the same FB again. Otherwise drivers > who do not employ continuously repeated scanout cycles might not update > the screen. Thanks for the suggestion! Looks good to me, will send in v2. > Btw. is it enough to set only FB_DAMAGE_CLIPS and not touch FB_ID? Hm, I must admit I have no idea.
