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

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

TOPDIR ?= $(CURDIR)
include $(DEVKITPRO)/libnx/switch_rules

#---------------------------------------------------------------------------------
TARGET		:=	Benchmark-Toolbox
BUILD		:=	build
SOURCES		:=	source source/furmark source/memtester source/cpustress
DATA		:=	data
ICON		:=	icon.jpg
INCLUDES	:=	source source/furmark source/memtester source/cpustress ../hoc-clk/common/include

APP_TITLE	:=	Benchmark Toolbox
APP_AUTHOR	:=	Horizon-OC
APP_VERSION	:=	2.0.0

ROMFS			:=	resources
BOREALIS_PATH	:=	lib/borealis

# Output folder (in romfs) for borealis' autogenerated nanovg shaders
OUT_SHADERS	:=	shaders

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-march=armv8-a+crc+crypto -mtune=cortex-a57 -mtp=soft -fPIE

CFLAGS	:=	-g -Wall -O2 -ffunction-sections \
			$(ARCH) $(DEFINES)

CFLAGS	+=	$(INCLUDE) -D__SWITCH__ -pthread

# -include optional: borealis' nanovg dk_renderer.hpp uses std::optional without
# including <optional> (newer libstdc++ dropped the transitive include).
CXXFLAGS	:= $(CFLAGS) -std=gnu++17 -O2 -Wno-volatile -fexceptions -include optional

ASFLAGS	:=	-g $(ARCH)
LDFLAGS	=	-specs=$(DEVKITPRO)/libnx/switch.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map) -pthread

# borealis.mk prepends -ldeko3d -lm. gpu_bw.c uses EGL/GLES; the Furmark tests
# use desktop GL via glad. Add the full GL stack.
LIBS	:= -lglad -lGLESv2 -lEGL -lglapi -ldrm_nouveau -lnx

#---------------------------------------------------------------------------------
LIBDIRS	:= $(PORTLIBS) $(LIBNX)

# Pull in borealis: appends its SOURCES / INCLUDES / LIBS / CXXFLAGS.
# Run `git submodule update --init --recursive` so lib/borealis is populated.
include $(TOPDIR)/$(BOREALIS_PATH)/library/borealis.mk

#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

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

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(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)))
GLSLFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.glsl)))
BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))

#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
	export LD	:=	$(CC)
else
	export LD	:=	$(CXX)
endif
#---------------------------------------------------------------------------------

export OFILES_BIN	:=	$(addsuffix .o,$(BINFILES))
export OFILES_SRC	:=	$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export OFILES 	:=	$(OFILES_BIN) $(OFILES_SRC)
export HFILES_BIN	:=	$(addsuffix .h,$(subst .,_,$(BINFILES)))

ifneq ($(strip $(ROMFS)),)
	ROMFS_TARGETS :=
	ROMFS_FOLDERS :=
	ifneq ($(strip $(OUT_SHADERS)),)
		ROMFS_SHADERS := $(ROMFS)/$(OUT_SHADERS)
		ROMFS_TARGETS += $(patsubst %.glsl, $(ROMFS_SHADERS)/%.dksh, $(GLSLFILES))
		ROMFS_FOLDERS += $(ROMFS_SHADERS)
	endif

	export ROMFS_DEPS := $(foreach file,$(ROMFS_TARGETS),$(CURDIR)/$(file))
endif

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 APP_ICON := $(TOPDIR)/$(ICON)

ifeq ($(strip $(NO_ICON)),)
	export NROFLAGS += --icon=$(APP_ICON)
endif

ifeq ($(strip $(NO_NACP)),)
	export NROFLAGS += --nacp=$(CURDIR)/$(TARGET).nacp
endif

ifneq ($(APP_TITLEID),)
	export NACPFLAGS += --titleid=$(APP_TITLEID)
endif

ifneq ($(ROMFS),)
	export NROFLAGS += --romfsdir=$(CURDIR)/$(ROMFS)
endif

.PHONY: all clean

#---------------------------------------------------------------------------------
all: $(ROMFS_TARGETS) | $(BUILD)
	@MSYS2_ARG_CONV_EXCL="-D;$(MSYS2_ARG_CONV_EXCL)" $(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

$(BUILD):
	@mkdir -p $@

ifneq ($(strip $(ROMFS_TARGETS)),)

$(ROMFS_TARGETS): | $(ROMFS_FOLDERS)

$(ROMFS_FOLDERS):
	@mkdir -p $@

$(ROMFS_SHADERS)/%_vsh.dksh: %_vsh.glsl
	@echo {vert} $(notdir $<)
	@uam -s vert -o $@ $<

$(ROMFS_SHADERS)/%_tcsh.dksh: %_tcsh.glsl
	@echo {tess_ctrl} $(notdir $<)
	@uam -s tess_ctrl -o $@ $<

$(ROMFS_SHADERS)/%_tesh.dksh: %_tesh.glsl
	@echo {tess_eval} $(notdir $<)
	@uam -s tess_eval -o $@ $<

$(ROMFS_SHADERS)/%_gsh.dksh: %_gsh.glsl
	@echo {geom} $(notdir $<)
	@uam -s geom -o $@ $<

$(ROMFS_SHADERS)/%_fsh.dksh: %_fsh.glsl
	@echo {frag} $(notdir $<)
	@uam -s frag -o $@ $<

$(ROMFS_SHADERS)/%.dksh: %.glsl
	@echo {comp} $(notdir $<)
	@uam -s comp -o $@ $<

endif

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) $(ROMFS_FOLDERS) $(TARGET).nro $(TARGET).nacp $(TARGET).elf

#---------------------------------------------------------------------------------
else
.PHONY:	all

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

#---------------------------------------------------------------------------------
all	:	$(OUTPUT).nro

ifeq ($(strip $(NO_NACP)),)
$(OUTPUT).nro	:	$(OUTPUT).elf $(OUTPUT).nacp $(ROMFS_DEPS)
else
$(OUTPUT).nro	:	$(OUTPUT).elf $(ROMFS_DEPS)
endif

$(OUTPUT).elf	:	$(OFILES)

$(OFILES_SRC)	: $(HFILES_BIN)

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

#---------------------------------------------------------------------------------
%.png.o	%_png.h :	%.png
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@$(bin2o)

-include $(DEPENDS)

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