On Thu, Jul 10, 2008 at 6:22 PM, Younes Manton <[EMAIL PROTECTED]> wrote: > I'm trying to get the HW winsys stuff set up for XvMC and have some questions. > > Is there any problem with dlopen()ing the DRI driver (in this case > nouveau_dri.so) and instead of writing my own winsys? Stephane > suggested I look into this, even though the winsys is supposed to be > tied to the API. For Softpipe I looked at what Mesa's winsys was doing > and implemented the stuff I needed and ignored any GL-specific things, > but I realize now I may have been able to load egl_softpipe.so and > reused their winsys. Is this acceptable for nouveau if I can live with > some possibly minor GL dependencies?. I'm looking at dri_glx.c and > glxext.c to see how this might be done.
As things currently are you need to make sure that libGL.so linked to the application. I think it just enough to dlopen() it GLOBAL and then dlopen *_dri.so you want. You then need some hocks and things to get the pipe_winsys and context creation out of the winsys or write code on your own side. I think you might be better of just writing your own winsys. But yes that is a lot of code duplication. If you look at the gallium i915 driver it has one dri winsys and one EGL winsys. Both these share a lot of backend code in a common directory, this part only talks to the DRM. Now I know this is beyond the scope of your gsoc but you could try to talk to the nouveau guys about it. dri: gallium/winsys/dri/intel EGL: gallium/winsys/egl_drm/intel backend: gallium/winsys/common/intel_drm Cheers Jakob. ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
