-#define SP_PLAYFIELD_SIZE (SP_PLAYFIELD_WIDTH * \
- SP_PLAYFIELD_HEIGHT)
-#define SP_LEVEL_SIZE (SP_HEADER_SIZE + SP_PLAYFIELD_SIZE)
+#define SP_STD_PLAYFIELD_SIZE (SP_STD_PLAYFIELD_WIDTH * \
+ SP_STD_PLAYFIELD_HEIGHT)
+#define SP_MAX_PLAYFIELD_SIZE (SP_MAX_PLAYFIELD_WIDTH * \
+ SP_MAX_PLAYFIELD_HEIGHT)
+#define SP_STD_LEVEL_SIZE (SP_HEADER_SIZE + SP_STD_PLAYFIELD_SIZE)
+
+#if 0
+#define SP_SCREEN_BUFFER_XSIZE (SCR_FIELDX + 2)
+#define SP_SCREEN_BUFFER_YSIZE (SCR_FIELDY + 2)
+#endif