On Wed, 2009-07-15 at 10:29 -0700, Brian Paul wrote: > José Fonseca wrote: > > The python gallium state tracker is an excellent debugging tool, but one > > drawback I noticed on people around me is that it is quite hard to setup > > and use. The only thing that the python state tracker needs to be told > > is how to create a pipe_screen/pipe_context for the hardware being > > debugged, but that implies quite a lot: code changes, rebuilding the > > python module, messing up with PYTHONPATHs, etc. > > > > Attached is a quick hack that enourmously simplifies using the python > > state tracker by: > > > > - exporting two functions from the GL driver > > > > struct pipe_screen * glGetGalliumScreen(void); > > Is this getting a pointer to an existing screen or creating a new one? > If the later, how about glCreateGalliumScreenMESA()?
It is getting an existing one, for two reasons: screens typically imply a great deal of resources (buffer memory pools, etc); and so that we can have interoperability between the user of these functions and GL itself. > > > struct pipe_context *glCreateGalliumContext(void); > > Rename to glCreateGalliumContextMESA() to follow GL extension naming > conventions. Will do. > > - resolving and using these functions in runtime from the python module > > > > In pratice, what it does is replace the static linking with dynamic > > linking. The patch is for windows, but the same thing can easily be done > > for Linux. > > > > I think it is too soon for promising a stable binary interface so I only > > enable this on DEBUG builds, as it is meant for development only. But > > this extension might be useful for more things in the future. > > > > A good addition would be a function to present a surface to a drawable: > > > > void wglGalliumPresent(struct pipe_surface *surface, HWND hwnd); > > > > void glXGalliumPresent(struct pipe_surface *surface, Window win); > > I have to admit that I haven't used the Python state tracker yet. How > about some docs in mesa/docs/python_state_tracker.html? There are plain text instructions to use it in src/gallium/state_trackers/python/README since the beginning, but the problem was its limited use (just uses softpipe, and integrating with other pipe drivers required per-case instructions), but now that this will change I can write up some HTML doc once it is done. Jose ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
