Makefile.3ds

.SUFFIXES:

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

TOPDIR ?= $(CURDIR)
include $(DEVKITARM)/3ds_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
# GRAPHICS is a list of directories containing graphics files
# GFXBUILD is the directory where converted graphics files will be placed
#   If set to $(BUILD), it will statically link in the converted
#   files as if they were data files.
#
# NO_SMDH: if set to anything, no SMDH file is generated.
# ROMFS is the directory which contains the RomFS, relative to the Makefile (Optional)
# APP_TITLE is the name of the app stored in the SMDH file (Optional)
# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
# ICON is the filename of the icon (.png), relative to the project folder.
#   If not set, it attempts to use one of the following (in this order):
#     - <Project name>.png
#     - icon.png
#     - <libctru folder>/default_icon.png
TARGET		:=	$(notdir $(CURDIR))
BUILD			:=	build
SOURCES		:=	src src/lib src/lib/rsa src/ui src/custom src/pica src/gl src/gl/textures
#SOURCES		:=	src src/lib src/ui src/custom
DATA			:=
#INCLUDES : = include
INCLUDES	:=	src cglm/include
GRAPHICS	:=	gfx
GFXBUILD	:=	$(BUILD)
ROMFS			:=	cache

# options for code generation
ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft

# TODO -g for DEBUG mode only
CFLAGS	:=	-g -Wall -Ofast -fno-signed-zeros -fno-trapping-math \
			-mword-relocations -fomit-frame-pointer -ffunction-sections \
			$(ARCH)

CFLAGS	+=	$(INCLUDE) -D__3DS__ -D_3DS -DRENDER_3DS_GL

CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11

ASFLAGS	:=	-g $(ARCH)
LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)

LIBS	:= -lcitro3d -lctru -lm

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


# 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 TOPDIR	:=	$(CURDIR)

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

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

CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
PICAFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.v.pica)))
SHLISTFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.shlist)))
GFXFILES	:=	$(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.t3s)))
BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
PNGFILES    :=  $(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.png)))

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

ifeq ($(GFXBUILD),$(BUILD))
export T3XFILES :=  $(GFXFILES:.t3s=.t3x)
else
export ROMFS_T3XFILES	:=	$(patsubst %.t3s, $(GFXBUILD)/%.t3x, $(GFXFILES))
export T3XHFILES		:=	$(patsubst %.t3s, $(BUILD)/%.h, $(GFXFILES))
endif

export OFILES_SOURCES 	:=	$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)

export OFILES_BIN	:=	$(addsuffix .o,$(BINFILES)) \
			$(PICAFILES:.v.pica=.shbin.o) $(SHLISTFILES:.shlist=.shbin.o) \
			$(addsuffix .o,$(T3XFILES)) $(PNGFILES:.png=.bgr.o)

export OFILES := $(OFILES_BIN) $(OFILES_SOURCES)

export HFILES	:=	$(PICAFILES:.v.pica=_shbin.h) $(SHLISTFILES:.shlist=_shbin.h) \
			$(addsuffix .h,$(subst .,_,$(BINFILES))) \
			$(GFXFILES:.t3s=.h) $(PNGFILES:.png=_bgr.h)

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

export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)

export _3DSXDEPS	:=	$(if $(NO_SMDH),,$(OUTPUT).smdh)

ifeq ($(strip $(ICON)),)
	icons := $(wildcard *.png)
	ifneq (,$(findstring $(TARGET).png,$(icons)))
		export APP_ICON := $(TOPDIR)/$(TARGET).png
	else
		ifneq (,$(findstring icon.png,$(icons)))
			export APP_ICON := $(TOPDIR)/icon.png
		endif
	endif
else
	export APP_ICON := $(TOPDIR)/$(ICON)
endif

#IMAGEMAGICK :=  $(shell which convert)

ifeq ($(strip $(NO_SMDH)),)
	export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
endif

ifneq ($(ROMFS),)
	export _3DSXFLAGS += --romfs=$(CURDIR)/$(ROMFS)
endif

.PHONY: all clean

all: $(BUILD) $(GFXBUILD) $(DEPSDIR) $(ROMFS_T3XFILES) $(T3XHFILES)
	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile.3ds

$(BUILD):
	@mkdir -p $@

ifneq ($(GFXBUILD),$(BUILD))
$(GFXBUILD):
	@mkdir -p $@
endif

ifneq ($(DEPSDIR),$(BUILD))
$(DEPSDIR):
	@mkdir -p $@
endif

clean:
	@echo clean ...
	@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf $(GFXBUILD)

$(GFXBUILD)/%.t3x	$(BUILD)/%.h	:	%.t3s
	@echo $(notdir $<)
	@tex3ds -i $< -H $(BUILD)/$*.h -d $(DEPSDIR)/$*.d -o $(GFXBUILD)/$*.t3x
else

# main targets
$(OUTPUT).3dsx	:	$(OUTPUT).elf $(_3DSXDEPS)

$(OFILES_SOURCES) : $(HFILES)

$(OUTPUT).elf	:	$(OFILES)

# you need a rule like this for each extension you use as binary data
%.bin.o	%_bin.h :	%.bin
	@echo $(notdir $<)
	@$(bin2o)

%_bgr.h %.bgr.o: %.bgr
	@echo $(notdir $<)
	@$(bin2o)

%.bgr: %.png
	@echo $(notdir $<)
	@convert $< -rotate 90 $@

.PRECIOUS	:	%.t3x
%.t3x.o	%_t3x.h :	%.t3x
	@echo $(notdir $<)
	@$(bin2o)

# rules for assembling GPU shaders
define shader-as
	$(eval CURBIN := $*.shbin)
	$(eval DEPSFILE := $(DEPSDIR)/$*.shbin.d)
	echo "$(CURBIN).o: $< $1" > $(DEPSFILE)
	echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(CURBIN) | tr . _)`.h
	echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(CURBIN) | tr . _)`.h
	echo "extern const u32" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(CURBIN) | tr . _)`.h
	picasso -o $(CURBIN) $1
	bin2s $(CURBIN) | $(AS) -o $*.shbin.o
endef

%.shbin.o %_shbin.h : %.v.pica %.g.pica
	@echo $(notdir $^)
	@$(call shader-as,$^)

%.shbin.o %_shbin.h : %.v.pica
	@echo $(notdir $<)
	@$(call shader-as,$<)

%.shbin.o %_shbin.h : %.shlist
	@echo $(notdir $<)
	@$(call shader-as,$(foreach file,$(shell cat $<),$(dir $<)$(file)))

%.t3x	%.h	:	%.t3s
	@echo $(notdir $<)
	@tex3ds -i $< -H $*.h -d $*.d -o $*.t3x

-include $(DEPSDIR)/*.d
endif