[Mesa-dev] About OpenGL QB stereo support..

Zhao, Juan J juan.j.zhao at intel.com
Fri Jan 14 00:50:15 PST 2011

> -----Original Message-----
> From: mesa-dev-bounces+juan.j.zhao=intel.com at lists.freedesktop.org
> [mailto:mesa-dev-bounces+juan.j.zhao=intel.com at lists.freedesktop.org]
> On Behalf Of Corbin Simpson
> Sent: Thursday, January 13, 2011 8:18 PM
> To: rtfss none
> Cc: mesa-dev at lists.freedesktop.org
> Subject: Re: [Mesa-dev] About OpenGL QB stereo support..
> On Wed, Jan 12, 2011 at 3:47 PM, rtfss none <rtfss1 at gmail.com> wrote:
> > Hi,
> >
> > first sorry if not is the correct place to post it but I was thinking
> > that with open source Sandy Bridge and AMD 68xx cards support that
> > ship with Displayport 1.2 (AMD only) and HDMI1.4(both) connectors
> > supporting
> > 3d stereo output if could mesa developers expose support for it.. i.e.
> > mesa ogl driver expose support for OGL QB stereo.. of course that
> > perhaps should require changes to drm stack or both amd and intel
> open
> > source drivers to setup
> > correct stereo frame packing output in this outputs.. that could add
> > an advantage of open source drivers to propietary drivers which only
> > expose ogl stereo support for professional cards.. and even then i
> > think there is no currently support for ogl qb stereo support via
> hdmi
> > 1.4 nor in Nvidia and AMD worlds.. also this could be a good effort
> to
> > port all stereo madness to linux now that seem even MVC hardware
> > decoding is supported on both Sandy Bridge and AMD 68xx cards.. that
> > could be exposed via VAAPI for SandyBrige (I'm posting on libva dev
> > list) or new OpenDecode AMD API which already exposes that support
> > (currently Windows world only but some OCL developers have asked AMD
> > to support also Linux)..
> DRI and GLX have all the correct support for GL_STEREO, but none of
> the open drivers implement it as far as I know. This would probably be
> a non-trivial thing to implement.
I don't think so. I read mesa's code and found that in dri_fill_in_modes, there is no operation to fill in the stereomode.

> --
> When the facts change, I change my mind. What do you do, sir? ~ Keynes
> Corbin Simpson
> <MostAwesomeDude at gmail.com>
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Many thanks & Best Regards
Zhao Juan

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