[Unichrome-devel] New libXvMC wrapper.
Thomas Hellström
unichrome at shipmail.org
Sun Sep 12 05:44:07 PDT 2004
Alan Cox wrote:
>On Sad, 2004-09-11 at 08:24, Thomas Hellstrom wrote:
>
>
>>The problem to be solved (for future compatibility) is the following:
>>1. Is the X server local? If not, best for now is to shut down.
>>
>>
>
>Surely if not send bitstream over the protocol
>
>
>
This would have been nice, since it would allow decoding to take place
in the local X server of a
cheap EPIA board. Unfortunately, the protocol implementation in the X
server is not complete, and just implements surface and context creation
/ deletion and capability querying.
>>2. What is the name of the XvMC Driver? One option would be to load in
>>turn a number of known drivers and try to create a context. This will
>>most likely fail if the wrong driver is used.
>>
>>
>
>This sounds more and more like XvMC and DRI should be talking and using
>the same kind of logic.
>
>
>
Yes, this would be possible by letting the X server side of
XvMCCreateContext return the name
of the driver as part of the non-device-private part of the info record.
This would require a slight
redesign of the protocol, and all existing drivers would need a change.
At the very least this should be part of a new protocol revision, but
for now I think we are stuck with the wrapper.
Another possibility would be, of course, to parse the Xf86Config file.
/Thomas
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