+# ---- tools ----
+PNGDUMP = tools/pngdump/pngdump
+
+$(PNGDUMP): tools/pngdump/main.c tools/pngdump/image.c tools/pngdump/quant.c
+ $(MAKE) -C tools/pngdump
+
+%.tiles: %.png $(PNGDUMP)
+ $(PNGDUMP) -o $@ -oc $(@:.tiles=.cmap) -om $(@:.tiles=.tmap) -T 8x8 -D $<
+
+%.img: %.png $(PNGDUMP)
+ $(PNGDUMP) -o $@ -oc $(@:.img=.cmap) -T 8x8 $<