+ NULL, /* get_proc_address */
+};
+
+static void
+dri2BindExtensions(struct dri2_screen *psc, const __DRIextension **extensions)
+{
+ int i;
+
+ __glXEnableDirectExtension(&psc->base, "GLX_SGI_video_sync");
+ __glXEnableDirectExtension(&psc->base, "GLX_SGI_swap_control");
+ __glXEnableDirectExtension(&psc->base, "GLX_MESA_swap_control");
+ __glXEnableDirectExtension(&psc->base, "GLX_SGI_make_current_read");
+
+ /* FIXME: if DRI2 version supports it... */
+ __glXEnableDirectExtension(&psc->base, "GLX_INTEL_swap_event");
+
+ if (psc->dri2->base.version >= 3) {
+ const unsigned mask = psc->dri2->getAPIMask(psc->driScreen);
+
+ __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context");
+ __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context_profile");
+
+ if ((mask & (1 << __DRI_API_GLES2)) != 0)
+ __glXEnableDirectExtension(&psc->base,
+ "GLX_EXT_create_context_es2_profile");
+ }
+
+ for (i = 0; extensions[i]; i++) {
+ if ((strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0)) {
+ psc->texBuffer = (__DRItexBufferExtension *) extensions[i];
+ __glXEnableDirectExtension(&psc->base, "GLX_EXT_texture_from_pixmap");
+ }
+
+ if ((strcmp(extensions[i]->name, __DRI2_FLUSH) == 0)) {
+ psc->f = (__DRI2flushExtension *) extensions[i];
+ /* internal driver extension, no GL extension exposed */
+ }
+
+ if ((strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0))
+ psc->config = (__DRI2configQueryExtension *) extensions[i];
+
+ if (((strcmp(extensions[i]->name, __DRI2_THROTTLE) == 0)))
+ psc->throttle = (__DRI2throttleExtension *) extensions[i];
+
+ /* DRI2 version 3 is also required because
+ * GLX_ARB_create_context_robustness requires GLX_ARB_create_context.
+ */
+ if (psc->dri2->base.version >= 3
+ && strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0)
+ __glXEnableDirectExtension(&psc->base,
+ "GLX_ARB_create_context_robustness");
+ }
+}
+
+static const struct glx_screen_vtable dri2_screen_vtable = {
+ dri2_create_context,
+ dri2_create_context_attribs