Messages in this thread | | | Date | Mon, 13 Dec 1999 23:54:15 -0800 | From | Jon Leech <> | Subject | Re: Thread-private mappings and graphics (was Re: Per-Processor Data |
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On Mon, Dec 13, 1999 at 10:31:49PM -0800, Linus Torvalds wrote: > You can have thread-private _pointers_. Just have different mappings of > the same hardware context if you have to, and just have different > pointers to it in different threads.
This doesn't address the problem. First, the threads need to refer to *different* graphics contexts. Second, the API requires that these contexts be identified by some thread-specific mechanism available to the graphics library, not by explicit stack pointers in the application - whether that mechanism is private mappings or tarot cards matters not, so long as it's extremely fast.
I assumed these points were both clear from my initial post, and not really occasion for a rant about how "unstable and unmaintainable" IRIX is, but whatever - so long as in the end Linux allows apps to issue vertices at least as fast as other OSes on the same hardware.
Jon Leech SGI
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