<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - NV30: Xfwm4 use_compositing - garbled display" href="https://bugs.freedesktop.org/show_bug.cgi?id=90871#c41">Comment # 41</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - NV30: Xfwm4 use_compositing - garbled display" href="https://bugs.freedesktop.org/show_bug.cgi?id=90871">bug 90871</a> from <a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> Ilia Mirkin</a> <pre>(In reply to Hans de Goede from <a href="show_bug.cgi?id=90871#c40">comment #40</a>) > Hi All, > > (In reply to Olivier Fourdan from <a href="show_bug.cgi?id=90871#c11">comment #11</a>) > > Created <a href="attachment.cgi?id=116536" name="attach_116536" title="test program">attachment 116536</a> <a href="attachment.cgi?id=116536&action=edit" title="test program">[details]</a> > > test program > > So after some time away from this bug, I'm back onto it. The problem is that > the test program ends up using > GL_TEXTURE_2D type textures / GLX_TEXTURE_2D_EXT target, where it should be > using GL_TEXTURE_RECTANGLE_ARB. > > The root cause for this seems to be that epoxy_has_glx_extension (dpy, > screen, "GL_ARB_texture_rectangle") always returns false, even though the > extension is there, as confirmed with both glxinfo and glxgears-info. Er yeah, it's not a GLX ext, no reason it'd be coming up in the GLX ext list. While similarly-named, they're entirely separate namespaces. > > Now the extension in question is not a glx-extension, but a gl-extension, so > I've also tried calling: > epoxy_has_gl_extension ("GL_ARB_texture_rectangle") but that always returns > false too. That's surprising. src/mesa/main/extensions.c: { "GL_ARB_texture_rectangle", o(NV_texture_rectangle), GL, 2004 }, src/mesa/state_tracker/st_extensions.c: extensions->NV_texture_rectangle = GL_TRUE; So it should actually always be exposed for any st/mesa-backed dri driver (including nv30).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>