DEBUG = 0
LOGSOUND = 0
FRONTEND_SUPPORTS_RGB565 = 1


ifneq ($(EMSCRIPTEN),)
	platform = emscripten
endif

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
		arch = intel
		ifeq ($(shell uname -p),powerpc)
			arch = ppc
		endif
	else ifneq ($(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,$(shell uname -a)),)
	system_platform = osx
	arch = intel
	ifeq ($(shell uname -p),powerpc)
		arch = ppc
	endif
else ifneq ($(findstring MINGW,$(shell uname -a)),)
	system_platform = win
endif

TARGET_NAME := genesis_plus_gx
LIBM := -lm

# Unix
ifeq ($(platform), unix)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--version-script=libretro/link.T -Wl,--no-undefined
	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DHAVE_ZLIB

# Portable Linux 
else ifeq ($(platform), linux-portable)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC -nostdlib
	SHARED := -shared -Wl,--version-script=libretro/link.T
	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DHAVE_ZLIB
	LIBM :=
# OS X
else ifeq ($(platform), osx)
	TARGET := $(TARGET_NAME)_libretro.dylib
	fpic := -fPIC 
	SHARED := -dynamiclib 
	ifeq ($(arch),ppc)
		ENDIANNESS_DEFINES := -DBYTE_ORDER=BIG_ENDIAN
	else
		ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	endif
	PLATFORM_DEFINES := -DHAVE_ZLIB

	OSXVER = `sw_vers -productVersion | cut -d. -f 2`
	OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
	fpic += -mmacosx-version-min=10.5
	ifndef ($(NOUNIVERSAL))
		CFLAGS  += $(ARCHFLAGS)
		LDFLAGS += $(ARCHFLAGS)
	endif

# iOS
else ifeq ($(platform), ios)
	TARGET := $(TARGET_NAME)_libretro_ios.dylib
	fpic := -fPIC
	SHARED := -dynamiclib 
	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DHAVE_ZLIB

	ifeq ($(IOSSDK),)
		IOSSDK := $(shell xcrun -sdk iphoneos -show-sdk-path)
	endif

	CC = clang -arch armv7 -isysroot $(IOSSDK)
	OSXVER = `sw_vers -productVersion | cut -d. -f 2`
	OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
	ifeq ($(OSX_LT_MAVERICKS),"YES")
		CC += -miphoneos-version-min=5.0
		PLATFORM_DEFINES += -miphoneos-version-min=5.0
	endif

# Theos
else ifeq ($(platform), theos_ios)
	DEPLOYMENT_IOSVERSION = 5.0
	TARGET = iphone:latest:$(DEPLOYMENT_IOSVERSION)
	ARCHS = armv7 armv7s
	TARGET_IPHONEOS_DEPLOYMENT_VERSION=$(DEPLOYMENT_IOSVERSION)
	THEOS_BUILD_DIR := objs
	include $(THEOS)/makefiles/common.mk

	LIBRARY_NAME = $(TARGET_NAME)_libretro_ios

	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DHAVE_ZLIB

# QNX
else ifeq ($(platform), qnx)
	TARGET := $(TARGET_NAME)_libretro_qnx.so
	fpic := -fPIC
	SHARED := -shared -Wl,--version-script=libretro/link.T -Wl,--no-undefined 
	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DHAVE_ZLIB
	CC = qcc -Vgcc_ntoarmv7le
	AR = qcc -Vgcc_ntoarmv7le
	PLATFORM_DEFINES := -D__BLACKBERRY_QNX__ -marm -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp

# PS3
else ifeq ($(platform), ps3)
	TARGET := $(TARGET_NAME)_libretro_ps3.a
	CC = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-gcc.exe
	AR = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-ar.exe
	PLATFORM_DEFINES := -D__CELLOS_LV2 -DALT_RENDER -DBYTE_ORDER=BIG_ENDIAN
	STATIC_LINKING = 1

# sncps3
else ifeq ($(platform), sncps3)
	TARGET := $(TARGET_NAME)_libretro_ps3.a
	CC = $(CELL_SDK)/host-win32/sn/bin/ps3ppusnc.exe
	AR = $(CELL_SDK)/host-win32/sn/bin/ps3snarl.exe
	PLATFORM_DEFINES := -D__CELLOS_LV2 -DALT_RENDER -DBYTE_ORDER=BIG_ENDIAN
	STATIC_LINKING = 1

# Lightweight PS3 Homebrew SDK
else ifeq ($(platform), psl1ght)
	TARGET := $(TARGET_NAME)_libretro_psl1ght.a$(EXE_EXT)
	CC = $(PS3DEV)/ppu/bin/ppu-gcc$(EXE_EXT)
	AR = $(PS3DEV)/ppu/bin/ppu-ar$(EXE_EXT)
	PLATFORM_DEFINES := -D__CELLOS_LV2 -DALT_RENDER
	STATIC_LINKING = 1

# PSP
else ifeq ($(platform), psp1)
	TARGET := $(TARGET_NAME)_libretro_psp1.a$(EXE_EXT)
	CC = psp-gcc$(EXE_EXT)
	AR = psp-ar$(EXE_EXT)
	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DPSP
	CFLAGS += -G0
	STATIC_LINKING = 1

# Xbox 360
else ifeq ($(platform), xenon)
	TARGET := $(TARGET_NAME)_libretro_xenon360.a
	CC = xenon-gcc$(EXE_EXT)
	AR = xenon-ar$(EXE_EXT)
	PLATFORM_DEFINES := -D__LIBXENON__ -DALT_RENDER
	ENDIANNESS_DEFINES := -DBYTE_ORDER=BIG_ENDIAN
	STATIC_LINKING = 1

# Nintendo Game Cube
else ifeq ($(platform), ngc)
	TARGET := $(TARGET_NAME)_libretro_ngc.a
	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
	ENDIANNESS_DEFINES := -DBYTE_ORDER=BIG_ENDIAN
	PLATFORM_DEFINES := -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float -DALT_RENDER
	STATIC_LINKING = 1

# Nintendo Wii
else ifeq ($(platform), wii)
	TARGET := $(TARGET_NAME)_libretro_wii.a
	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
	PLATFORM_DEFINES := -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float -DALT_RENDER
	ENDIANNESS_DEFINES := -DBYTE_ORDER=BIG_ENDIAN
	STATIC_LINKING = 1

# ARM
else ifneq (,$(findstring armv,$(platform)))
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--version-script=libretro/link.T -Wl,--no-undefined 
	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DHAVE_ZLIB
	ifneq (,$(findstring cortexa5,$(platform)))
		PLATFORM_DEFINES += -marm -mcpu=cortex-a5
	else ifneq (,$(findstring cortexa8,$(platform)))
		PLATFORM_DEFINES += -marm -mcpu=cortex-a8
	else ifneq (,$(findstring cortexa9,$(platform)))
		PLATFORM_DEFINES += -marm -mcpu=cortex-a9
	else ifneq (,$(findstring cortexa15a7,$(platform)))
		PLATFORM_DEFINES += -marm -mcpu=cortex-a15.cortex-a7
	else
		PLATFORM_DEFINES += -marm
	endif
	ifneq (,$(findstring softfloat,$(platform)))
		PLATFORM_DEFINES += -mfloat-abi=softfp
	else ifneq (,$(findstring hardfloat,$(platform)))
		PLATFORM_DEFINES += -mfloat-abi=hard
	endif
	PLATFORM_DEFINES += -DARM

# emscripten
else ifeq ($(platform), emscripten)
	TARGET := $(TARGET_NAME)_libretro_emscripten.bc
	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN

# Windows
else
	TARGET := $(TARGET_NAME)_libretro.dll
	CC = gcc
	SHARED := -shared -static-libgcc -static-libstdc++ -Wl,--version-script=libretro/link.T -Wl,--no-undefined 

	ENDIANNESS_DEFINES := -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN
	PLATFORM_DEFINES := -DHAVE_ZLIB

endif

LDFLAGS += $(LIBM)

ifeq ($(DEBUG), 1)
	CFLAGS += -O0 -g
else ifeq ($(platform),qnx)
   CFLAGS += -Os -DNDEBUG
else ifeq ($(platform), emscripten)
   CFLAGS += -O2 -DNDEBUG
else
   CFLAGS += -O3 -DNDEBUG
endif

CORE_DIR := .

TREMOR_SRC_DIR  := $(CORE_DIR)/core/tremor
LIBRETRO_DIR	:= $(CORE_DIR)/libretro

include $(LIBRETRO_DIR)/Makefile.common

OBJECTS := $(SOURCES_C:.c=.o)

ifeq ($(LOGSOUND), 1)
	LIBRETRO_CFLAGS := -DLOGSOUND
endif

DEFINES := -DUSE_LIBTREMOR 
CFLAGS += $(fpic) $(DEFINES) $(CODE_DEFINES)

ifeq ($(FRONTEND_SUPPORTS_RGB565), 1)
	# if you have a new frontend that supports RGB565
	BPP_DEFINES = -DUSE_16BPP_RENDERING -DFRONTEND_SUPPORTS_RGB565
else
	BPP_DEFINES = -DUSE_15BPP_RENDERING
endif


LIBRETRO_CFLAGS += $(INCFLAGS)
LIBRETRO_CFLAGS += $(BPP_DEFINES) \
					$(ENDIANNESS_DEFINES) \
					$(PLATFORM_DEFINES) \
					-D__LIBRETRO__

ifeq ($(platform), qnx)
	LIBRETRO_CFLAGS += -D__inline__=inline
else
	LIBRETRO_CFLAGS += -DINLINE="static inline"
endif

ifeq ($(platform), theos_ios)
COMMON_FLAGS := $(COMMON_DEFINES) $(INCFLAGS) -I$(THEOS_INCLUDE_PATH) -Wno-error
$(LIBRARY_NAME)_CFLAGS += $(CFLAGS) $(LIBRETRO_CFLAGS) $(COMMON_FLAGS)
${LIBRARY_NAME}_FILES = $(SOURCES_C)
${LIBRARY_NAME}_LIBRARIES = m z
include $(THEOS_MAKE_PATH)/library.mk
else
all: $(TARGET)

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

$(TARGET): $(OBJECTS)
ifeq ($(STATIC_LINKING), 1)
	$(AR) rcs $@ $(OBJECTS)
else
	$(CC) -o $(TARGET) $(fpic) $(OBJECTS) $(LDFLAGS) $(SHARED) 
endif

clean-objs:
	rm -f $(OBJECTS)

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

.PHONY: clean clean-objs
endif