--- glx/glxdriswrast.c.orig	2021-07-29 18:48:14 UTC
+++ glx/glxdriswrast.c
@@ -50,6 +50,8 @@
 
 #include "extension_string.h"
 
+#include "xf86.h"
+
 /* RTLD_LOCAL is not defined on Cygwin */
 #ifdef __CYGWIN__
 #ifndef RTLD_LOCAL
@@ -332,11 +334,29 @@ swrastGetImage(__DRIdrawable * draw,
     }
 }
 
+static void
+swrastGetRGBOffsets(void *loaderPrivate, int *offsets)
+{
+    __GLXDRIscreen *gscreen = loaderPrivate;
+    ScrnInfoPtr scrn = xf86ScreenToScrn(gscreen->base.pScreen);
+
+    offsets[0] = scrn->offset.red;
+    offsets[1] = scrn->offset.green;
+    offsets[2] = scrn->offset.blue;
+}
+
 static const __DRIswrastLoaderExtension swrastLoaderExtension = {
-    {__DRI_SWRAST_LOADER, 1},
+    {__DRI_SWRAST_LOADER, 7},
     swrastGetDrawableInfo,
     swrastPutImage,
-    swrastGetImage
+    swrastGetImage,
+    NULL,                       /* putImage2 */
+    NULL,                       /* getImage2 */
+    NULL,                       /* putImageShm */
+    NULL,                       /* getImageShm */
+    NULL,                       /* putImageShm2 */
+    NULL,                       /* getImageShm2 */
+    swrastGetRGBOffsets
 };
 
 static const __DRIextension *loader_extensions[] = {