static EGLBoolean dri2_connect(struct dri2_egl_display *dri2_dpy) { xcb_xfixes_query_version_reply_t *xfixes_query; xcb_xfixes_query_version_cookie_t xfixes_query_cookie; xcb_dri2_query_version_reply_t *dri2_query; xcb_dri2_query_version_cookie_t dri2_query_cookie; xcb_dri2_connect_reply_t *connect; xcb_dri2_connect_cookie_t connect_cookie; xcb_generic_error_t *error; xcb_screen_iterator_t s; char *driver_name, *device_name; const xcb_query_extension_reply_t *extension; xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id); xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id); extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_xfixes_id); if (!(extension && extension->present)) return EGL_FALSE; extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_dri2_id); if (!(extension && extension->present)) return EGL_FALSE; xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn, XCB_XFIXES_MAJOR_VERSION, XCB_XFIXES_MINOR_VERSION); dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn, XCB_DRI2_MAJOR_VERSION, XCB_DRI2_MINOR_VERSION); s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn, s.data->root, XCB_DRI2_DRIVER_TYPE_DRI); xfixes_query = xcb_xfixes_query_version_reply (dri2_dpy->conn, xfixes_query_cookie, &error); if (xfixes_query == NULL || error != NULL || xfixes_query->major_version < 2) { _eglLog(_EGL_WARNING, "DRI2: failed to query xfixes version"); free(error); return EGL_FALSE; } free(xfixes_query); dri2_query = xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error); if (dri2_query == NULL || error != NULL) { _eglLog(_EGL_WARNING, "DRI2: failed to query version"); free(error); return EGL_FALSE; } dri2_dpy->dri2_major = dri2_query->major_version; dri2_dpy->dri2_minor = dri2_query->minor_version; free(dri2_query); connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL); if (connect == NULL || connect->driver_name_length + connect->device_name_length == 0) { _eglLog(_EGL_WARNING, "DRI2: failed to authenticate"); return EGL_FALSE; } driver_name = xcb_dri2_connect_driver_name (connect); dri2_dpy->driver_name = dri2_strndup(driver_name, xcb_dri2_connect_driver_name_length (connect)); device_name = xcb_dri2_connect_device_name (connect); dri2_dpy->device_name = dri2_strndup(device_name, xcb_dri2_connect_device_name_length (connect)); if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) { free(dri2_dpy->device_name); free(dri2_dpy->driver_name); free(connect); return EGL_FALSE; } free(connect); return EGL_TRUE; }
static EGLBoolean dri2_x11_connect(struct dri2_egl_display *dri2_dpy) { xcb_xfixes_query_version_reply_t *xfixes_query; xcb_xfixes_query_version_cookie_t xfixes_query_cookie; xcb_dri2_query_version_reply_t *dri2_query; xcb_dri2_query_version_cookie_t dri2_query_cookie; xcb_dri2_connect_reply_t *connect; xcb_dri2_connect_cookie_t connect_cookie; xcb_generic_error_t *error; xcb_screen_iterator_t s; xcb_screen_t *screen; char *driver_name, *loader_driver_name, *device_name; const xcb_query_extension_reply_t *extension; xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id); xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id); extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_xfixes_id); if (!(extension && extension->present)) return EGL_FALSE; extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_dri2_id); if (!(extension && extension->present)) return EGL_FALSE; xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn, XCB_XFIXES_MAJOR_VERSION, XCB_XFIXES_MINOR_VERSION); dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn, XCB_DRI2_MAJOR_VERSION, XCB_DRI2_MINOR_VERSION); s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); screen = get_xcb_screen(s, dri2_dpy->screen); if (!screen) { _eglLog(_EGL_WARNING, "DRI2: failed to get xcb screen"); return EGL_FALSE; } connect_cookie = xcb_dri2_connect_unchecked(dri2_dpy->conn, screen->root, XCB_DRI2_DRIVER_TYPE_DRI); xfixes_query = xcb_xfixes_query_version_reply (dri2_dpy->conn, xfixes_query_cookie, &error); if (xfixes_query == NULL || error != NULL || xfixes_query->major_version < 2) { _eglLog(_EGL_WARNING, "DRI2: failed to query xfixes version"); free(error); return EGL_FALSE; } free(xfixes_query); dri2_query = xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error); if (dri2_query == NULL || error != NULL) { _eglLog(_EGL_WARNING, "DRI2: failed to query version"); free(error); return EGL_FALSE; } dri2_dpy->dri2_major = dri2_query->major_version; dri2_dpy->dri2_minor = dri2_query->minor_version; free(dri2_query); connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL); if (connect == NULL || connect->driver_name_length + connect->device_name_length == 0) { _eglLog(_EGL_WARNING, "DRI2: failed to authenticate"); return EGL_FALSE; } device_name = xcb_dri2_connect_device_name (connect); dri2_dpy->device_name = strndup(device_name, xcb_dri2_connect_device_name_length(connect)); dri2_dpy->fd = loader_open_device(dri2_dpy->device_name); if (dri2_dpy->fd == -1) { _eglLog(_EGL_WARNING, "DRI2: could not open %s (%s)", dri2_dpy->device_name, strerror(errno)); free(dri2_dpy->device_name); free(connect); return EGL_FALSE; } if (!dri2_x11_local_authenticate(dri2_dpy)) { close(dri2_dpy->fd); free(dri2_dpy->device_name); free(connect); return EGL_FALSE; } driver_name = xcb_dri2_connect_driver_name (connect); /* If Mesa knows about the appropriate driver for this fd, then trust it. * Otherwise, default to the server's value. */ loader_driver_name = loader_get_driver_for_fd(dri2_dpy->fd, 0); if (loader_driver_name) { dri2_dpy->driver_name = loader_driver_name; } else { dri2_dpy->driver_name = strndup(driver_name, xcb_dri2_connect_driver_name_length(connect)); } if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) { close(dri2_dpy->fd); free(dri2_dpy->device_name); free(dri2_dpy->driver_name); free(connect); return EGL_FALSE; } free(connect); return EGL_TRUE; }