[Intel-gfx] [PATCH 01/11] drm: add plane support

[Jesse Barnes]

On Wed, 2 Nov 2011 02:20:58 +0000 (UTC)
Inki Dae <daeinki at gmail.com> wrote:
> Sorry, there is my missing point. please, ignor step 6 ~ 9.
> if user requests setplane then drm_mode_setplane function gets fb and crtc 
> object to update the overlay corresponding to plane id. at that time I think 
> we could know which overlay should be set and how many buffers does the 
> overlay has through specific framebuffer object if specific framebuffer has 
> gem object.

Right, that's the goal anyway.

> in our case, specific framebuffer has gem object. and I would try to implement 
> multi planer the way I mentioned if need and I will post the patch. this work 
> takes about a week. I think the way that user allocates buffers for multi 
> planer only with pixel format and resolution(width, height) would be good. but 
> there could be more good ways then this way.

Ok, that would help.  Rob and Daniel also wanted the addfb2 ioctl to be
extended a bit more to handle planar formats and also to specify
surface offsets.  Now that I have the X driver working well enough to
do clipping and multi-pipe, I'll update addfb2 and post an updated
patchset today.  You can see if it will address what you're trying to
do with planar formats.

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center
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