softpipe: dont claim to support PIPE_FORMAT_NONE

diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 6bf3df8..bd3532d 100644 (file)
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -149,6 +149,7 @@ softpipe_is_format_supported( struct pipe_screen *screen,
    case PIPE_FORMAT_B6UG5SR5S_NORM:
    case PIPE_FORMAT_X8UB8UG8SR8S_NORM:
    case PIPE_FORMAT_A8B8G8R8_SNORM:
+   case PIPE_FORMAT_NONE:
       return FALSE;
    default:
       return TRUE;