# CMPS 160
# Painterly Rendering
# Makefile for Assignment 2
#
# Builds executeable with user code in main.cc by default
# 
# If you have some.jpg and you want to make it into a ppm for use with
# your program run "make some.ppm" (also works for .jpeg .bmp .gif .png)
#
#	Use "make demo" to package the binary and documentation for sharing.
#
# XXX: If your program uses multiple object files, update the 
#	     USEROBJECTS variable below (example: helper.cc becomes helper.o)

USEROBJECTS = main.o

CXXFLAGS =	-I/usr/X11R6/include/GL \
		-Wall -g \
		-L/usr/X11R6/lib
						
LIBS =	-lglut -lGL -lGLU

CONVERT = convert
GTAR = tar

PROG = paint
DEMO = $(PROG)_demo


all: $(PROG) README

# executable linking step
$(PROG): ppm_canvas.o $(USEROBJECTS)
	$(CXX) $(CXXFLAGS) $^ -o $@ $(LIBS)

# image convertion rules (requires ImageMagik)
%.ppm: %.jpg
	$(CONVERT) -format ppm $< $@
%.ppm: %.jpeg
	$(CONVERT) -format ppm $< $@
%.ppm: %.bmp
	$(CONVERT) -format ppm $< $@
%.ppm: %.gif
	$(CONVERT) -format ppm $< $@
%.ppm: %.png
	$(CONVERT) -format ppm $< $@

# mandatory README reminder message, fails build
README:
	@ echo ""
	@ echo "Don't forget to make a README before you submit your project!"
	@ echo ""
	@ echo "Should include:"
	@ echo "	- your name and email"
	@ echo "	- partners' names (if any)"
	@ echo "	- how to run your program"
	@ echo "	- how to use it while its running"
	@ echo "	- a brief description of painting method"
	@ echo ""
	@ false

# cleanup rules
.PHONY: clean spotless
clean:
	-rm *.o
spotless: clean
	-rm $(PROG)
	-rm $(DEMO).tgz

# demo export rules
demo: $(DEMO).tgz
	@ echo ""
	@ echo "Your demo package is in $(DEMO).tgz"
	@ echo ""
$(DEMO).tgz: $(PROG) README
	cp $(PROG) $(DEMO)
	cp README $(DEMO).README
	$(GTAR) -czf $@ $(DEMO) $(DEMO).README
	rm $(DEMO) $(DEMO).README