Hi Rob, Thanks for the answer.so as per the definitions I understand the below points. a) frame buffer here signifies the scan out buffer which encompasses complete display. b)when I see the definition of plane in the doc book it says " planes are associated with a frame buffer to crop a portion of the image source and optionally scale it to destination size". I assume this is not the same frame buffer as point a. c)planes are overlayed or blended over the scanout buffer.
Regards, Anand On 23-May-2014 7:25 PM, "Rob Clark" <robdclark at gmail.com> wrote: > See: > > http://people.freedesktop.org/~danvet/drm/drm-mode-setting.html#idp57325824 > > although the docbook probably should be updated (now that we have > primary-planes) to read something more like: "...that provide a source > of pixels to scanout to a plane" > > (since a plane is basically the part of display controller block that > reads in the pixel data from the fb) > > > > On Thu, May 22, 2014 at 6:30 PM, Anand Sinha <anand.sinha85 at gmail.com> > wrote: > > Hello, > > > > Can someone help me understand the basic difference between a plane and a > > frame buffer. > > > > Regards, > > Anand > > > > > > _______________________________________________ > > dri-devel mailing list > > dri-devel at lists.freedesktop.org > > http://lists.freedesktop.org/mailman/listinfo/dri-devel > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20140605/e0d1b50b/attachment-0001.html>
