On 02.03.2013 00:14, Ian Romanick wrote: > Since last September I've been gradually working on an extension to > let applications query information about the renderer before (and > after) creating a context. I've talked it over with a few ISVs and > with various other folks. I also gathered some input from folks at > FOSDEM after my talk there. After going through several iterations of > review and modification, I think it's finally ready for wider input. > > Some of the earliest feedback that I got was that many ISVs really > like the interface that fills this niche on Mac OS. It's a pretty > nice API, and this API is modeled after it. There are, however, some > differences. > > I've pasted the spec below so that people can provide in-line > comments. I've also pushed a branch with the spec and the initial > implementation. There are a few things potentially provided by the > spec that are not included in the initial implementation. I've > implemented a couple unit tests, and I have some piglit tests > in-progress. > > http://cgit.freedesktop.org/~idr/mesa/log/?h=query-renderer > > I'm mostly looking for input on the specification itself. Once this > is good, I will also add EGL support. ... > GLX renderer attribute number description > of values > ---------------------- --------- ----------- > GLX_RENDERER_VENDOR_ID_MESA 1 PCI ID of the device vendor > GLX_RENDERER_DEVICE_ID_MESA 1 PCI ID of the device > ... > > 5) How can applications tell the difference between different > hardware > renderers for the same device? For example, whether the renderer > is the > open-source driver or the closed-source driver. > > RESOLVED. Assuming this extension is ever implemented outside > Mesa, > applications can query GLX_RENDERER_VENDOR_ID_MESA from > glXQueryRendererStringMESA. This will almost certainly return > different strings for open-source and closed-source drivers. >
Why would the "PCI ID of the device vendor" change with the driver ? _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
