Re: PFCHAN_SWAPBUFFERS_HW and genlock

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Sharon Clay (src++at++rose.asd.sgi.com)
Tue, 10 Dec 1996 02:31:35 -0800

+>---- On Dec 9, 1:56am, Bernard Leclerc wrote:
> Subject: PFCHAN_SWAPBUFFERS_HW and genlock
->
->Simple question:
->
-> Can channels on different pipes share PFCHAN_SWAPBUFFERS_HW even
-> when their pipes are not genlocked?
->
->I'm trying to isolate and reproduce an intermittent problem. Sometime my
->program will complain about 'swap buffer failed'. It looks like this
->message is printed from the GL itself - not from Performer.
->
->I'd like to leave the following statement unchanged whether or not the
->pipes are genlocked:
->
-> chan[0]->setShare(PFCHAN_SCENE | PFCHAN_SWAPBUFFERS |
-> PFCHAN_SWAPBUFFERS_HW | PFCHAN_APPFUNC);
->
->It is possible that this statement is causing the 'swap buffer failed'
->problem?

I am not sure but it is certainly possible.
FYI, PFCHAN_SWAPBUFFERS_HW across pipes will currently only work on RE2 and you
need the swap-ready cable hooked up.
OpenGL iR support is in patch 1355 and will be in Performer2.2.

src.

-- 
-----{-----{---++at++   -----{----{---++at++   -----{----{---++at++   -----{----{---++at++
Sharon Rose Clay (Fischler) - Silicon Graphics, Advanced Systems Dev.
src++at++sgi.com  (415) 933 - 1002  FAX: (415) 965 - 2658  MS 8U-590
-----{-----{---++at++   -----{----{---++at++   -----{----{---++at++   -----{----{---++at++
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