#---------------------------------------------------------------------------------
.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 := retroarch_switch

DEBUG                  ?= 0
WHOLE_ARCHIVE_LINK      = 0
GRIFFIN_BUILD           = 0

OBJ := 

# For threading we need to overwrite some vars with global defines because devkitPro's includes 
# make it hard for us. This works for the pthread wrapper
DEFINES_THREAD := -Dpthread_t=Thread -Dpthread_mutex_t=Mutex -Dpthread_mutexattr_t='void*' -Dpthread_attr_t=int -Dpthread_cond_t=CondVar -Dpthread_condattr_t='int' -D_SYS__PTHREADTYPES_H_
DEFINES := -U__linux__ -U__linux -DRARCH_INTERNAL -DGLOBAL_CONFIG_DIR='"/switch"' $(DEFINES_THREAD)

HAVE_CC_RESAMPLER = 1
HAVE_MENU_COMMON = 1
HAVE_RTGA = 1
HAVE_RPNG = 1
HAVE_RJPEG = 1
HAVE_RBMP = 1
HAVE_RGUI = 1
HAVE_ZLIB = 1
HAVE_BUILTINZLIB = 1
HAVE_LIBRETRODB = 1
HAVE_ZARCH = 0
HAVE_MATERIALUI = 0
HAVE_XMB = 0
HAVE_STATIC_VIDEO_FILTERS = 1
HAVE_STATIC_AUDIO_FILTERS = 1
HAVE_MENU = 1
HAVE_RUNAHEAD = 1

# RetroArch libnx useful flags
HAVE_OVERLAY = 0
HAVE_THREADS = 1
HAVE_PTHREADS = 1
HAVE_FREETYPE = 0
HAVE_SWITCH = 1
HAVE_LIBNX = 1

include Makefile.common
BLACKLIST :=
#BLACKLIST += input/input_overlay.o
#BLACKLIST += tasks/task_overlay.o

OBJ := $(filter-out $(BLACKLIST),$(OBJ))

#---------------------------------------------------------------------------------
# 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
# EXEFS_SRC is the optional input directory containing data copied into exefs, if anything this normally should only contain "main.npdm".
# ROMFS is the directory containing data to be added to RomFS, relative to the Makefile (Optional)
#
# NO_ICON: if set to anything, do not use icon.
# NO_NACP: if set to anything, no .nacp file is generated.
# APP_TITLE is the name of the app stored in the .nacp file (Optional)
# APP_AUTHOR is the author of the app stored in the .nacp file (Optional)
# APP_VERSION is the version of the app stored in the .nacp file (Optional)
# APP_TITLEID is the titleID of the app stored in the .nacp file (Optional)
# ICON is the filename of the icon (.jpg), relative to the project folder.
#   If not set, it attempts to use one of the following (in this order):
#     - <Project name>.jpg
#     - icon.jpg
#     - <libnx folder>/default_icon.jpg
#---------------------------------------------------------------------------------
BUILD := build
SOURCES := $(CURDIR)/source
DATA := data
INCLUDES :=	include
EXEFS_SRC := exefs_src
#ROMFS := switch/romfs

APP_TITLE := RetroArch
APP_VERSION := 1.0.0
APP_AUTHOR := libretro Team
NO_ICON := 1

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

CFLAGS	:=	-g -Wall -O3 -ffast-math -ffunction-sections \
			$(ARCH) $(DEFINES) -Ideps -Ideps/libz -Ilibretro-common/include -Ideps/stb -I$(LIBNX)/include -include $(LIBNX)/include/switch.h #$(shell $(DEVKITPRO)/portlibs/switch/bin/freetype-config --cflags)

CFLAGS	+=	$(INCLUDE) -DSWITCH=1 -DHAVE_LIBNX=1 -DNXLINK=1

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

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

LIBS	:= -lnx -lm -lstdc++ -lbz2 -lpng -lz

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

#---------------------------------------------------------------------------------
# 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	:=	$(TARGET)
export TOPDIR	:=	$(CURDIR)

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

export DEPSDIR	:=	$(CURDIR)/

CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.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 	:=	$(OBJ) libretro_switch.a
export HFILES_BIN	:=	$(addsuffix .h,$(subst .,_,$(BINFILES)))

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 BUILD_EXEFS_SRC := $(TOPDIR)/$(EXEFS_SRC)

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

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

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

.PHONY: clean all

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
all	:	$(OUTPUT).pfs0 $(OUTPUT).nro

$(OUTPUT).pfs0	:	$(OUTPUT).nso

$(OUTPUT).nso	:	$(OUTPUT).elf

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

$(OUTPUT).elf	:	$(OBJ)

clean:
	rm -f $(OBJ) $(OUTPUT).pfs0 $(OUTPUT).nro $(OUTPUT).elf

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

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