#---------------------------------------------------------------------------------
# Clear the implicit built in rules
#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

#---------------------------------------------------------------------------------
# TARGET is the name of the output, if this ends with _mb generates a multiboot image
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
#---------------------------------------------------------------------------------
TARGET		:=	mp3-plyr
BUILD		:=	build
SOURCES		:=	source
DATA		:=	data
INCLUDES	:=	

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------

MACHDEP = -DGEKKO -mcpu=750 -meabi -mhard-float
CFLAGS = -O2 -Wall $(MACHDEP) $(INCLUDES)

#CFLAGS	:=	-O3 -Wa,-mregnames -Wall $(INCLUDE)
#ASFLAGS	:=	-Wa,-mregnames $(INCLUDE)

LDFLAGS	=	$(MACHDEP) -mogc -lmad -Wl,-Map,$(notdir $@).map

#---------------------------------------------------------------------------------
# path to tools - this can be deleted if you set the path in windows
#---------------------------------------------------------------------------------
#export PATH := /e/GameCube/devkitPPC_r8/bin:/bin
#---------------------------------------------------------------------------------
# absolute path required since this makefile uses the build directory
# as the working directory
#---------------------------------------------------------------------------------

#---------------------------------------------------------------------------------
# the prefix on the compiler executables
#---------------------------------------------------------------------------------
PREFIX			:=	powerpc-gekko-
#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project
#---------------------------------------------------------------------------------
LIBS	:=	-lmodplay -logc -lm

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:=

#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export OUTPUT	:=	$(CURDIR)/$(TARGET)

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
					$(foreach dir,$(DATA),$(CURDIR)/$(dir))

export CC		:=	$(PREFIX)gcc
export CXX		:=	$(PREFIX)g++
export AR		:=	$(PREFIX)ar
export OBJCOPY	:=	$(PREFIX)objcopy
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
export LD	:=	$(CXX)
#export LD	:=	$(CC)

#---------------------------------------------------------------------------------
# automatically build a list of object files for our project
#---------------------------------------------------------------------------------
CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
sFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.S)))
DOLFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.mp3)))

export DFILES	:= $(DOLFILES:.mp3=.o)
export OFILES	:= $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(sFILES:.s=.o) $(SFILES:.S=.o)
#export OFILES	:=	gx_demo.o spaceship.o texture.o incbin.o
#---------------------------------------------------------------------------------
# build a list of include paths
#---------------------------------------------------------------------------------
export INCLUDES	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
					$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
					-I$(CURDIR)/$(BUILD) \
					-I$(CURDIR)/$(INCLUDE)

#---------------------------------------------------------------------------------
# build a list of library paths
#---------------------------------------------------------------------------------
export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)

export OUTPUT	:=	$(CURDIR)/$(TARGET)
.PHONY: $(BUILD) clean

#---------------------------------------------------------------------------------
$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) *.elf

#---------------------------------------------------------------------------------
else

DEPENDS	:=	$(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).dol: $(OUTPUT).elf
	@echo output ... $(notdir $@)
	@$(OBJCOPY)  -O binary $< $@

#---------------------------------------------------------------------------------
$(OUTPUT).elf: $(DFILES) $(OFILES)
	@echo linking ... $(notdir $@)
	@$(LD)  $^ $(LDFLAGS) $(LIBPATHS) $(LIBS) -o $@

#---------------------------------------------------------------------------------
# Compile Targets for C/C++
#---------------------------------------------------------------------------------

#---------------------------------------------------------------------------------
%.o : %.cpp
	@echo $(notdir $<)
	@$(CXX) -MMD $(CFLAGS) -o $@ -c $<

#---------------------------------------------------------------------------------
%.o : %.c
	@echo $(notdir $<)
	@$(CC) -MMD $(CFLAGS) -o $@ -c $<

#---------------------------------------------------------------------------------
%.o : %.S
	@echo $(notdir $<)
	@$(CC) -MMD $(CFLAGS) -D_LANGUAGE_ASSEMBLY -c $< -o $@

#---------------------------------------------------------------------------------
%.o : %.s
	@echo $(notdir $<)
	@$(CC) -MMD $(CFLAGS) -D_LANGUAGE_ASSEMBLY -c $< -o $@

#---------------------------------------------------------------------------------
%.o : %.mp3
	@echo $(notdir $<)
	@$(bin2o)
#---------------------------------------------------------------------------------
# canned command sequence for binary data
#---------------------------------------------------------------------------------
define bin2o
	cp $(<) $(*).tmp
	$(OBJCOPY) -I binary -O elf32-powerpc -B powerpc \
	--rename-section .data=.rodata,readonly,data,contents,alloc \
	--redefine-sym _binary_$*_tmp_start=$*\
	--redefine-sym _binary_$*_tmp_end=$*_end\
	--redefine-sym _binary_$*_tmp_size=$*_size\
	$(*).tmp $(@)
	#echo "#ifndef __$(*)_H" > $(*).h
	#echo "#define __$(*)_H" >> $(*).h
	#echo "#define __$(*)_H" >> $(*).h
	echo "#ifndef __MYMP3_H" > $(*).h
	echo "#define __MYMP3_H" >> $(*).h
	echo "#endif" >> $(*).h
	echo "extern const u8" $(*)"[];" >> $(*).h
	echo "extern const u32" $(*)_size[]";" >> $(*).h
	rm $(*).tmp
endef

-include $(DEPENDS)

#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------