On Mon, Mar 8, 2010 at 10:37 PM, Ian Romanick <i...@freedesktop.org> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > George Sapountzis wrote: > >> I made a small test to test code genration for dynamic extensions in >> http://cgit.freedesktop.org/~gsap7/mesa/log/?h=getproc-test >> >> When using libGL + swrast_dri.so from getproc-test, the dynamic >> extensions code is not exercised and the test passes. >> >> When using libGL from mesa 7.7 and swrast_dri.so from getproc-test, >> the extension string does contain GL_MESA_test_extension but the test >> segfaults. > > There are a few places where this could break. > > - The generated dispatch stub function is wrong. > - The dispatch offset used by the driver is wrong. > - The dispatch remapping used by the driver is wrong. >
It turned out that there were two bugs in glapi. One with using non-exec memory and the other with using an un-relocated function template for entry-point generation. I put fixes at: http://cgit.freedesktop.org/~gsap7/mesa/log/?h=getproc-debug I also tested with libGL pretending to not know fbo extensions, the fbo* demos and tests render correctly. I get a warning about an invalid enum in RenderbufferStorageMultisample(target) but i don't know where it comes from and it does not affect rendering. Since we are already generating static dispatch stubs for all known extensions, I guess we can add a few more static stubs and use them, instead of generating on-the-fly. I put an example about this in the getproc-debug branch, but I don't know if it's a good idea. regards, George. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
