+ /* copy back color buffer to front color buffer */
+ struct st_framebuffer *stfb = (struct st_framebuffer *) fb;
+ struct pipe_surface *surf_front, *surf_back;
+ (void) st_get_framebuffer_surface(stfb, ST_SURFACE_FRONT_LEFT, &surf_front);
+ (void) st_get_framebuffer_surface(stfb, ST_SURFACE_BACK_LEFT, &surf_back);
+
+ st->pipe->surface_copy(st->pipe,
+ surf_front, 0, 0, /* dest */
+ surf_back, 0, 0, /* src */
+ fb->Width, fb->Height);