#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif

include $(DEVKITARM)/ds_rules

#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
#---------------------------------------------------------------------------------
TARGET		:=	$(shell basename $(CURDIR))
BUILD		:=	src
SOURCES		:=	src
DATA		:=	data
INCLUDES	:=	include

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-mthumb -mthumb-interwork \
		-D__NDS__ -DENABLE_NDS -DNO_SIGNAL_H -DDISABLE_THREADS -DPACKAGE=\"SDL\" \
		 -DVERSION=\"2.0\" -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1  

CFLAGS	:=	-g -Wall -Os\
		-march=armv5te -mtune=arm946e-s \
		-fomit-frame-pointer -ffast-math \
		$(ARCH)

CFLAGS	+=	$(INCLUDE) -DARM9
CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions

ASFLAGS	:=	-g $(ARCH) -march=armv5te -mtune=arm946e-s
LDFLAGS	=	-specs=ds_arm9.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)

# Set to 0 to use a framer buffer, or 1 to use the GL like hardware
# renderer. Alas, both cannot be used at the same time for lack of
# display/texture memory.
USE_HW_RENDERER := 1

ifeq ($(USE_HW_RENDERER),1)
CFLAGS += -DUSE_HW_RENDERER
else
endif

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

#---------------------------------------------------------------------------------
# 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	:=	$(CURDIR)/lib/lib$(TARGET).a

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

export DEPSDIR	:=	$(CURDIR)/$(BUILD)

CFILES		:=	\
			SDL.c \
			SDL_assert.c \
			SDL_error.c \
			SDL_fatal.c \
			SDL_hints.c \
			SDL_log.c \
			atomic/SDL_atomic.c \
			atomic/SDL_spinlock.arm.c \
			audio/SDL_audio.c \
			audio/SDL_audiocvt.c \
			audio/SDL_audiodev.c \
			audio/SDL_audiotypecvt.c \
			audio/SDL_mixer.c \
			audio/SDL_wave.c \
			audio/nds/SDL_ndsaudio.c \
			cpuinfo/SDL_cpuinfo.c \
			events/SDL_events.c \
			events/SDL_keyboard.c \
			events/SDL_mouse.c \
			events/SDL_quit.c \
			events/SDL_touch.c \
			events/SDL_windowevents.c \
			events/nds/SDL_ndsgesture.c \
			file/SDL_rwops.c \
			haptic/SDL_haptic.c \
			haptic/nds/SDL_syshaptic.c \
			joystick/SDL_joystick.c \
			joystick/nds/SDL_sysjoystick.c \
			power/SDL_power.c \
			power/nds/SDL_syspower.c \
			render/SDL_render.c \
			render/SDL_yuv_sw.c \
			render/nds/SDL_ndsrender.c \
			render/nds/SDL_libgl2D.c \
			render/software/SDL_blendfillrect.c \
			render/software/SDL_blendline.c \
			render/software/SDL_blendpoint.c \
			render/software/SDL_drawline.c \
			render/software/SDL_drawpoint.c \
			render/software/SDL_render_sw.c \
			stdlib/SDL_getenv.c \
			stdlib/SDL_iconv.c \
			stdlib/SDL_malloc.c \
			stdlib/SDL_qsort.c \
			stdlib/SDL_stdlib.c \
			stdlib/SDL_string.c \
			thread/SDL_thread.c \
			thread/nds/SDL_syscond.c \
			thread/nds/SDL_sysmutex.c \
			thread/nds/SDL_syssem.c \
			thread/nds/SDL_systhread.c \
			timer/SDL_timer.c \
			timer/nds/SDL_systimer.c \
			video/SDL_RLEaccel.c \
			video/SDL_blit.c \
			video/SDL_blit_0.c \
			video/SDL_blit_1.c \
			video/SDL_blit_A.c \
			video/SDL_blit_N.c \
			video/SDL_blit_auto.c \
			video/SDL_blit_copy.c \
			video/SDL_blit_slow.c \
			video/SDL_bmp.c \
			video/SDL_clipboard.c \
			video/SDL_fillrect.c \
			video/SDL_pixels.c \
			video/SDL_rect.c \
			video/SDL_stretch.c \
			video/SDL_surface.c \
			video/SDL_video.c \
			video/nds/SDL_ndsevents.c \
			video/nds/SDL_ndsvideo.c \
			video/nds/SDL_ndswindow.c


#CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
#SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
#BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))

#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
	export LD	:=	$(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
	export LD	:=	$(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)

export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
			-I$(CURDIR)/$(BUILD) \
			-I$(PORTLIBS)/include/SDL

.PHONY: $(BUILD) clean all

#---------------------------------------------------------------------------------
all: arm_only $(BUILD) install nds_test

lib:
	@[ -d $@ ] || mkdir -p $@

$(BUILD): lib
	@[ -d $@ ] || mkdir -p $@
	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile.ds -s

install: $(BUILD)
	@mkdir -p $(PORTLIBS)/include/SDL/
	@rsync -a $(OUTPUT) $(PORTLIBS)/lib/
	@rsync -a include/*.h $(PORTLIBS)/include/SDL/

nds_test:
	$(MAKE) -C test/nds-test-progs -s

tags:
	cd $(SOURCES); etags $(CFILES)

# This file must be compiled with the ARM instruction set, not
# thumb. Use devkitpro way of doing things.
arm_only: src/atomic/SDL_spinlock.arm.c
src/atomic/SDL_spinlock.arm.c: src/atomic/SDL_spinlock.c
	@cp $< $@

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@cd src; rm -fr $(OFILES) $(OFILES:.o=.d) lib
	@rm -f $(OUTPUT)
	@make -C test/nds-test-progs -s clean

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

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

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT)	:	$(OFILES)

#---------------------------------------------------------------------------------
%.bin.o	:	%.bin
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@$(bin2o)


-include $(DEPENDS)

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