<br><br><div class="gmail_quote">2010/12/9 Chia-I Wu <span dir="ltr"><<a href="mailto:olvaffe@gmail.com">olvaffe@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> 2010/12/9 Kristian Høgsberg <<a href="mailto:krh@bitplanet.net">krh@bitplanet.net</a>>:<br> <div><div></div><div class="h5">> 2010/12/9 Jammy Zhou <<a href="mailto:jammy.zhou@linaro.org">jammy.zhou@linaro.org</a>>:<br> >> Hi All,<br> >><br> >> Currently I am doing some experiments with mesa 7.9 driver to check the<br> >> renderer info of underlying OpenGL and OpenGL ES2.0 drivers to decide which<br> >> driver to use at runtime. With my code attached, the renderer info for GLES2<br> >> can be got successfully, and although the EGL and GLES2 libraries are<br> >> unloaded before creating the GLX context, glGetString(GL_RENDERER) for<br> >> OpenGL still returns NULL. After enable MESA_DEBUG, I found the error<br> >> message "GL User Error: calling GL function without a rendering context",<br> >> and many warnings as "Mesa warning: failed to remap ....". I also changed<br> >> the sequence for GL and GLES2, but got similar results. If do separately,<br> >> both renderer info can be got successfully. It seems that EGL/GLES2 and<br> >> GLX/GL affects each other in this case, may be related to library<br> >> load/unload(?). Do you guys have some ideas to solve this problem?<br> ><br> > Yes, this is a limitation in the way the dri driver implements<br> > different APIs. We have a few global tables that get initialized with<br> > API specific data, so if you switch to a different GL API later, it<br> > will give you the remapping errors you saw.<br> > It would be nice to fix, but I don't know that anybody is looking into it.<br> </div></div>16ee7a55ae269612263468195f2af998cb9ef695 should solve the remapping<br> errors. It allows contexts of different client APIs to coexist. But<br> yes, there are still some global tables (e.g. glGet* table) that are<br> not multiple-API aware. There are also places that API check is done<br> at compile time...<br> <br></blockquote><div><br>I just tried latest mesa with 16ee7a55ae269612263468195f2af9<div id=":6k">98cb9ef695 you mentioned, but the remapping errors are still there.<br></div><br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> > Kristian<br> > _______________________________________________<br> > mesa-dev mailing list<br> > <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a><br> > <a href="http://lists.freedesktop.org/mailman/listinfo/mesa-dev" target="_blank">http://lists.freedesktop.org/mailman/listinfo/mesa-dev</a><br> ><br> <font color="#888888"><br> <br> <br> --<br> olv@LunarG.com<br> </font></blockquote></div><br>