#endif /* GLX_MESA_agp_offset */
+/*
+ * ???. GLX_MESA_allocate_memory
+ */
+#ifndef GLX_MESA_allocate_memory
+#define GLX_MESA_allocate_memory 1
+
+extern void *glXAllocateMemoryMESA(Display *dpy, int scrn, size_t size, float readfreq, float writefreq, float priority);
+extern void glXFreeMemoryMESA(Display *dpy, int scrn, void *pointer);
+extern GLuint glXGetMemoryOffsetMESA(Display *dpy, int scrn, const void *pointer);
+typedef void * ( * PFNGLXALLOCATEMEMORYMESAPROC) (Display *dpy, int scrn, size_t size, float readfreq, float writefreq, float priority);
+typedef void ( * PFNGLXFREEMEMORYMESAPROC) (Display *dpy, int scrn, void *pointer);
+typedef GLuint (* PFNGLXGETMEMORYOFFSETMESAPROC) (Display *dpy, int scrn, const void *pointer);
+
+#endif /* GLX_MESA_allocate_memory */
+
/*
* ARB ?. GLX_ARB_render_texture
*/