DEBUG = 0

ifeq ($(platform),)
platform = unix
ifeq ($(shell uname -a),)
   platform = win
else ifneq ($(findstring MINGW,$(shell uname -a)),)
   platform = win
else ifneq ($(findstring Darwin,$(shell uname -a)),)
   platform = osx
else ifneq ($(findstring win,$(shell uname -a)),)
   platform = win
endif
endif

# system platform
system_platform = unix
ifeq ($(shell uname -a),)
EXE_EXT = .exe
   system_platform = win
else ifneq ($(findstring Darwin,$(shell uname -a)),)
   system_platform = osx
else ifneq ($(findstring MINGW,$(shell uname -a)),)
   system_platform = win
endif

LIBRETRO_DIR := libretro
TARGET_NAME := gambatte

ifeq ($(platform), unix)
   TARGET := $(TARGET_NAME)_libretro.so
   fpic := -fPIC
   SHARED := -shared -Wl,-version-script=libretro/link.T
else ifeq ($(platform), osx)
   TARGET := $(TARGET_NAME)_libretro.dylib
   fpic := -fPIC
   SHARED := -dynamiclib
else ifeq ($(platform), ios)
   TARGET := $(TARGET_NAME)_libretro_ios.dylib
   fpic := -fPIC
   SHARED := -dynamiclib

   CC = clang -arch armv7 -isysroot $(IOSSDK)
   CXX = clang++ -arch armv7 -isysroot $(IOSSDK)
else ifeq ($(platform), qnx)
   TARGET := $(TARGET_NAME)_libretro_qnx.so
   fpic := -fPIC
   SHARED := -lcpp -lm -shared -Wl,-version-script=libretro/link.T
	CC = qcc -Vgcc_ntoarmv7le
	CXX = QCC -Vgcc_ntoarmv7le_cpp
	AR = QCC -Vgcc_ntoarmv7le
	PLATFORM_DEFINES := -D__BLACKBERRY_QNX__ -fexceptions -marm -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp
else ifeq ($(platform), ps3)
   TARGET := $(TARGET_NAME)_libretro_ps3.a
   CXX = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-g++.exe
   AR = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-ar.exe
   PLATFORM_DEFINES := -D__CELLOS_LV2__
	STATIC_LINKING = 1
else ifeq ($(platform), sncps3)
   TARGET := $(TARGET_NAME)_libretro_ps3.a
   CC = $(CELL_SDK)/host-win32/sn/bin/ps3ppusnc.exe
   CXX = $(CELL_SDK)/host-win32/sn/bin/ps3ppusnc.exe
   AR = $(CELL_SDK)/host-win32/sn/bin/ps3snarl.exe
   PLATFORM_DEFINES := -D__CELLOS_LV2__
	STATIC_LINKING = 1
else ifeq ($(platform), psl1ght)
   TARGET := $(TARGET_NAME)_libretro_psl1ght.a
   CC = $(PS3DEV)/ppu/bin/ppu-gcc$(EXE_EXT)
   CXX = $(PS3DEV)/ppu/bin/ppu-g++$(EXE_EXT)
   AR = $(PS3DEV)/ppu/bin/ppu-ar$(EXE_EXT)
   PLATFORM_DEFINES := -D__CELLOS_LV2__
	STATIC_LINKING = 1
else ifeq ($(platform), psp1)
   TARGET := $(TARGET_NAME)_libretro_psp1.a
   CC = psp-gcc$(EXE_EXT)
   CXX = psp-g++$(EXE_EXT)
   AR = psp-ar$(EXE_EXT)
   PLATFORM_DEFINES := -DPSP
	CFLAGS += -G0
	STATIC_LINKING = 1
else ifeq ($(platform), xenon)
   TARGET := $(TARGET_NAME)_libretro_xenon360.a
   CC = xenon-gcc$(EXE_EXT)
   CXX = xenon-g++$(EXE_EXT)
   AR = xenon-ar$(EXE_EXT)
   PLATFORM_DEFINES := -D__LIBXENON__
	STATIC_LINKING = 1
else ifeq ($(platform), ngc)
   TARGET := $(TARGET_NAME)_libretro_ngc.a
   CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
   CXX = $(DEVKITPPC)/bin/powerpc-eabi-g++$(EXE_EXT)
   AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
   PLATFORM_DEFINES += -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float
	STATIC_LINKING = 1
else ifeq ($(platform), wii)
   TARGET := $(TARGET_NAME)_libretro_wii.a
   CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
   CXX = $(DEVKITPPC)/bin/powerpc-eabi-g++$(EXE_EXT)
   AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
   PLATFORM_DEFINES += -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float
	STATIC_LINKING = 1
else
   TARGET := $(TARGET_NAME)_libretro.dll
   CC = gcc
   CXX = g++
   SHARED := -shared -static-libgcc -static-libstdc++ -Wl,-no-undefined -Wl,-version-script=libretro/link.T
endif

ifeq ($(DEBUG), 1)
	CFLAGS += -O0 -g
	CXXFLAGS += -O0 -g
else
	CFLAGS += -O3
	CXXFLAGS += -O3 -fno-exceptions -fno-rtti -DHAVE_STDINT_H
endif

RESAMPLER_DIR := ../common/resample/src
EMU_DIR := src
LIBRETRO_DIR := libretro

CXXSRCS := $(EMU_DIR)/bitmap_font.cpp $(EMU_DIR)/cpu.cpp $(EMU_DIR)/gambatte.cpp $(EMU_DIR)/initstate.cpp $(EMU_DIR)/interrupter.cpp $(EMU_DIR)/interruptrequester.cpp $(EMU_DIR)/memory.cpp $(EMU_DIR)/sound.cpp $(EMU_DIR)/state_osd_elements.cpp $(EMU_DIR)/statesaver.cpp $(EMU_DIR)/tima.cpp $(EMU_DIR)/video.cpp $(EMU_DIR)/file/file.cpp $(EMU_DIR)/mem/cartridge.cpp $(EMU_DIR)/mem/memptrs.cpp $(EMU_DIR)/mem/rtc.cpp $(EMU_DIR)/sound/channel1.cpp $(EMU_DIR)/sound/channel2.cpp $(EMU_DIR)/sound/channel3.cpp $(EMU_DIR)/sound/channel4.cpp $(EMU_DIR)/sound/duty_unit.cpp $(EMU_DIR)/sound/envelope_unit.cpp $(EMU_DIR)/sound/length_counter.cpp $(EMU_DIR)/video/ly_counter.cpp $(EMU_DIR)/video/lyc_irq.cpp $(EMU_DIR)/video/next_m0_time.cpp $(EMU_DIR)/video/ppu.cpp $(EMU_DIR)/video/sprite_mapper.cpp libretro/libretro.cpp $(RESAMPLER_DIR)/chainresampler.cpp $(RESAMPLER_DIR)/i0.cpp $(RESAMPLER_DIR)/makesinckernel.cpp $(RESAMPLER_DIR)/resamplerinfo.cpp $(RESAMPLER_DIR)/u48div.cpp

CXXOBJ := $(CXXSRCS:.cpp=.o)

OBJS := $(CXXOBJ)

DEFINES := -D__LIBRETRO__ $(PLATFORM_DEFINES) -DHAVE_STDINT_H -DHAVE_INTTYPES_H -DINLINE=inline

ifeq ($(platform), sncps3)
CODE_DEFINES =
else
CODE_DEFINES = -std=gnu99
endif

CFLAGS += $(CODE_DEFINES) $(fpic) $(DEFINES)
CXXFLAGS += $(fpic) $(DEFINES)

INCDIRS := -I$(EMU_DIR) -Iinclude -I../common -I../common/resample -Ilibretro
LIBS :=

all: $(TARGET)

$(TARGET): $(OBJS)
ifeq ($(STATIC_LINKING), 1)
	$(AR) rcs $@ $(OBJS)
else
	$(CXX) -o $@ $(SHARED) $(OBJS) $(LDFLAGS) $(LIBS)
endif

%.o: %.cpp
	$(CXX) -c -o $@ $< $(CXXFLAGS) $(INCDIRS)

%.o: %.c
	$(CC) -c -o $@ $< $(CFLAGS) $(INCDIRS)

clean-objs:
	rm -f $(OBJS)

clean:
	rm -f $(OBJS)
	rm -f $(TARGET)

.PHONY: clean clean-objs