#disable built-in rules
.SUFFIXES :

ifndef OS
OS:=$(shell uname -s)
endif
FIXUP:=true

BUNDLED_LIBZ:=zlib/adler32.o zlib/compress.o zlib/crc32.o zlib/deflate.o zlib/gzclose.o zlib/gzlib.o zlib/gzread.o\
	zlib/gzwrite.o zlib/infback.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/trees.o zlib/uncompr.o zlib/zutil.o

ifeq ($(OS),Windows)

GLEW_PREFIX:=glew
MEM:=mem_win.o
TERMINAL:=terminal_win.o
FONT:=nuklear_ui/font_win.o
NET:=net_win.o
EXE:=.exe
SO:=dll
CPU:=i686
ifeq ($(CPU),i686)
CC:=i686-w64-mingw32-gcc-win32
WINDRES:=i686-w64-mingw32-windres
GLUDIR:=Win32
SDL2_PREFIX:="sdl/i686-w64-mingw32"
else
CC:=x86_64-w64-mingw32-gcc-win32
WINDRES:=x86_64-w64-mingw32-windres
SDL2_PREFIX:="sdl/x86_64-w64-mingw32"
GLUDIR:=x64
endif
GLEW32S_LIB:=$(GLEW_PREFIX)/lib/Release/$(GLUDIR)/glew32s.lib
CFLAGS:=-std=gnu99 -Wreturn-type -Werror=return-type -Werror=implicit-function-declaration -Wpointer-arith -Werror=pointer-arith
LDFLAGS:=-lm -lmingw32 -lws2_32 -mwindows
ifneq ($(MAKECMDGOALS),libblastem.dll)
CFLAGS+= -I"$(SDL2_PREFIX)/include/SDL2" -I"$(GLEW_PREFIX)/include" -DGLEW_STATIC
LDFLAGS+= $(GLEW32S_LIB) -L"$(SDL2_PREFIX)/lib" -lSDL2main -lSDL2 -lopengl32 -lglu32
endif
LIBZOBJS=$(BUNDLED_LIBZ)

else

MEM:=mem.o
TERMINAL:=terminal.o
NET:=net.o
EXE:=

HAS_PROC:=$(shell if [ -d /proc ]; then /bin/echo -e -DHAS_PROC; fi)
CFLAGS:=-std=gnu99 -Wreturn-type -Werror=return-type -Werror=implicit-function-declaration -Wno-unused-value  -Wpointer-arith -Werror=pointer-arith $(HAS_PROC) -DHAVE_UNISTD_H

ifeq ($(OS),Darwin)
LIBS=sdl2 glew
FONT:=nuklear_ui/font_mac.o
SO:=dylib
else
SO:=so

ifdef USE_FBDEV
LIBS=alsa
ifndef NOGL
LIBS+=glesv2 egl
endif
CFLAGS+= -DUSE_GLES -DUSE_FBDEV -pthread
else
ifdef USE_GLES
LIBS=sdl2 glesv2
CFLAGS+= -DUSE_GLES
else
LIBS=sdl2 glew gl
endif #USE_GLES
endif #USE_FBDEV
FONT:=nuklear_ui/font.o
endif #Darwin

ifdef HOST_ZLIB
LIBS+= zlib
LIBZOBJS=
else
LIBZOBJS=$(BUNDLED_LIBZ)
endif

ifeq ($(OS),Darwin)
#This should really be based on whether or not the C compiler is clang rather than based on the OS
CFLAGS+= -Wno-logical-op-parentheses
endif
ifdef PORTABLE
ifdef USE_GLES
ifndef GLES_LIB
GLES_LIB:=$(shell pkg-config --libs glesv2)
endif
LDFLAGS:=-lm $(GLES_LIB)
else
CFLAGS+= -DGLEW_STATIC -Iglew/include
LDFLAGS:=-lm glew/lib/libGLEW.a
endif

ifeq ($(OS),Darwin)
SDL_INCLUDE_PATH:=Frameworks/SDL2.framework/Headers
LDFLAGS+= -FFrameworks -framework SDL2 -framework OpenGL -framework AppKit
FIXUP:=install_name_tool -change @rpath/SDL2.framework/Versions/A/SDL2 @executable_path/Frameworks/SDL2.framework/Versions/A/SDL2
else
SDL_INCLUDE_PATH:=sdl/include
LDFLAGS+= -Wl,-rpath='$$ORIGIN/lib' -Llib -lSDL2
ifndef USE_GLES
LDFLAGS+= $(shell pkg-config --libs gl)
endif
endif #Darwin
CFLAGS+= -I$(SDL_INCLUDE_PATH)

else
ifeq ($(MAKECMDGOALS),libblastem.$(SO))
LDFLAGS:=-lm
else
CFLAGS:=$(shell pkg-config --cflags-only-I $(LIBS)) $(CFLAGS)
LDFLAGS:=-lm $(shell pkg-config --libs $(LIBS))
ifdef USE_FBDEV
LDFLAGS+= -pthread
endif
endif #libblastem.so

ifeq ($(OS),Darwin)
LDFLAGS+= -framework OpenGL -framework AppKit
endif

endif #PORTABLE
endif #Windows

ifndef OPT
ifdef DEBUG
OPT:=-g3 -O0
else
ifdef NOLTO
OPT:=-O2
else
OPT:=-O2 -flto
endif #NOLTO
endif #DEBUG
endif #OPT

CFLAGS:=$(OPT) $(CFLAGS)
LDFLAGS:=$(OPT) $(LDFLAGS)

ifdef Z80_LOG_ADDRESS
CFLAGS+= -DZ80_LOG_ADDRESS
endif

ifdef PROFILE
PROFFLAGS:= -Wl,--no-as-needed -lprofiler -Wl,--as-needed
CFLAGS+= -g3
endif
ifdef NOGL
CFLAGS+= -DDISABLE_OPENGL
endif

ifdef M68030
CFLAGS+= -DM68030
endif
ifdef M68020
CFLAGS+= -DM68020
endif
ifdef M68010
CFLAGS+= -DM68010
endif

ifndef CPU
CPU:=$(shell uname -m)
endif

#OpenBSD uses different names for these architectures
ifeq ($(CPU),amd64)
CPU:=x86_64
else
ifeq ($(CPU),i386)
CPU:=i686
endif
endif

TRANSOBJS=gen.o backend.o $(MEM) arena.o tern.o
M68KOBJS=68kinst.o

ifdef NEW_CORE
Z80OBJS=z80.o z80inst.o 
M68KOBJS+= m68k.o
CFLAGS+= -DNEW_CORE
else
Z80OBJS=z80inst.o z80_to_x86.o
ifeq ($(CPU),x86_64)
M68KOBJS+= m68k_core.o m68k_core_x86.o
TRANSOBJS+= gen_x86.o backend_x86.o
else
ifeq ($(CPU),i686)
M68KOBJS+= m68k_core.o m68k_core_x86.o
TRANSOBJS+= gen_x86.o backend_x86.o
endif
endif
endif
AUDIOOBJS=ym2612.o psg.o wave.o vgm.o event_log.o render_audio.o
CONFIGOBJS=config.o tern.o util.o paths.o 
NUKLEAROBJS=$(FONT) nuklear_ui/blastem_nuklear.o nuklear_ui/sfnt.o
RENDEROBJS=ppm.o controller_info.o
ifdef USE_FBDEV
RENDEROBJS+= render_fbdev.o
else
RENDEROBJS+= render_sdl.o
endif
	
ifdef NOZLIB
CFLAGS+= -DDISABLE_ZLIB
else
RENDEROBJS+= $(LIBZOBJS) png.o
endif

MAINOBJS=blastem.o system.o genesis.o debug.o gdb_remote.o vdp.o $(RENDEROBJS) io.o romdb.o hash.o menu.o xband.o \
	realtec.o i2c.o nor.o sega_mapper.o multi_game.o megawifi.o $(NET) serialize.o $(TERMINAL) $(CONFIGOBJS) gst.o \
	$(M68KOBJS) $(TRANSOBJS) $(AUDIOOBJS) saves.o zip.o bindings.o jcart.o gen_player.o

LIBOBJS=libblastem.o system.o genesis.o debug.o gdb_remote.o vdp.o io.o romdb.o hash.o xband.o realtec.o \
	i2c.o nor.o sega_mapper.o multi_game.o megawifi.o $(NET) serialize.o $(TERMINAL) $(CONFIGOBJS) gst.o \
	$(M68KOBJS) $(TRANSOBJS) $(AUDIOOBJS) saves.o jcart.o rom.db.o
	
ifdef NONUKLEAR
CFLAGS+= -DDISABLE_NUKLEAR
else
MAINOBJS+= $(NUKLEAROBJS)
endif

ifeq ($(CPU),x86_64)
CFLAGS+=-DX86_64 -m64
LDFLAGS+=-m64
else
ifeq ($(CPU),i686)
CFLAGS+=-DX86_32 -m32
LDFLAGS+=-m32
else
$(error $(CPU) is not a supported architecture)
endif
endif

ifdef NOZ80
CFLAGS+=-DNO_Z80
else
MAINOBJS+= sms.o $(Z80OBJS)
LIBOBJS+= sms.o $(Z80OBJS)
endif

ifeq ($(OS),Windows)
MAINOBJS+= res.o
endif

ifdef CONFIG_PATH
CFLAGS+= -DCONFIG_PATH='"'$(CONFIG_PATH)'"'
endif

ifdef DATA_PATH
CFLAGS+= -DDATA_PATH='"'$(DATA_PATH)'"'
endif

ifdef FONT_PATH
CFLAGS+= -DFONT_PATH='"'$(FONT_PATH)'"'
endif

ALL=dis$(EXE) zdis$(EXE) vgmplay$(EXE) blastem$(EXE)
ifneq ($(OS),Windows)
ALL+= termhelper
endif

ifeq ($(MAKECMDGOALS),libblastem.$(SO))
CFLAGS+= -fpic -DIS_LIB
endif

all : $(ALL)

libblastem.$(SO) : $(LIBOBJS)
	$(CC) -shared -o $@ $^ $(LDFLAGS)

blastem$(EXE) : $(MAINOBJS)
	$(CC) -o $@ $^ $(LDFLAGS) $(PROFFLAGS)
	$(FIXUP) ./$@
	
blastjag$(EXE) : jaguar.o jag_video.o $(RENDEROBJS) serialize.o $(M68KOBJS) $(TRANSOBJS) $(CONFIGOBJS)
	$(CC) -o $@ $^ $(LDFLAGS)

termhelper : termhelper.o
	$(CC) -o $@ $^ $(LDFLAGS)

dis$(EXE) : dis.o 68kinst.o tern.o vos_program_module.o
	$(CC) -o $@ $^ $(OPT)
	
jagdis : jagdis.o jagcpu.o tern.o
	$(CC) -o $@ $^

zdis$(EXE) : zdis.o z80inst.o
	$(CC) -o $@ $^

libemu68k.a : $(M68KOBJS) $(TRANSOBJS)
	ar rcs libemu68k.a $(M68KOBJS) $(TRANSOBJS)

trans : trans.o serialize.o $(M68KOBJS) $(TRANSOBJS) util.o
	$(CC) -o trans trans.o $(M68KOBJS) $(TRANSOBJS) util.o $(OPT)

transz80 : transz80.o $(Z80OBJS) $(TRANSOBJS)
	$(CC) -o transz80 transz80.o $(Z80OBJS) $(TRANSOBJS)

ztestrun : ztestrun.o serialize.o $(Z80OBJS) $(TRANSOBJS)
	$(CC) -o ztestrun $^ $(OPT)

ztestgen : ztestgen.o z80inst.o
	$(CC) -ggdb -o ztestgen ztestgen.o z80inst.o

vgmplay$(EXE) : vgmplay.o $(RENDEROBJS) serialize.o $(CONFIGOBJS) $(AUDIOOBJS)
	$(CC) -o $@ $^ $(LDFLAGS)
	$(FIXUP) ./$@

blastcpm : blastcpm.o util.o serialize.o $(Z80OBJS) $(TRANSOBJS)
	$(CC) -o $@ $^ $(OPT) $(PROFFLAGS)

test : test.o vdp.o
	$(CC) -o test test.o vdp.o

testgst : testgst.o gst.o
	$(CC) -o testgst testgst.o gst.o

test_x86 : test_x86.o gen_x86.o gen.o
	$(CC) -o test_x86 test_x86.o gen_x86.o gen.o

test_arm : test_arm.o gen_arm.o mem.o gen.o
	$(CC) -o test_arm test_arm.o gen_arm.o mem.o gen.o
	
test_int_timing : test_int_timing.o vdp.o
	$(CC) -o $@ $^

gen_fib : gen_fib.o gen_x86.o mem.o
	$(CC) -o gen_fib gen_fib.o gen_x86.o mem.o

offsets : offsets.c z80_to_x86.h m68k_core.h
	$(CC) -o offsets offsets.c

vos_prog_info : vos_prog_info.o vos_program_module.o
	$(CC) -o vos_prog_info vos_prog_info.o vos_program_module.o
	
m68k.c : m68k.cpu cpu_dsl.py
	./cpu_dsl.py -d call $< > $@

%.c : %.cpu cpu_dsl.py
	./cpu_dsl.py -d goto $< > $@

%.db.c : %.db
	sed $< -e 's/"/\\"/g' -e 's/^\(.*\)$$/"\1\\n"/' -e'1s/^\(.*\)$$/const char $(shell echo $< | tr '.' '_')_data[] = \1/' -e '$$s/^\(.*\)$$/\1;/' > $@

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

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

%.png : %.xcf
	xcf2png $< > $@

%.tiles : %.spec
	./img2tiles.py -s $< $@

%.bin : %.s68
	vasmm68k_mot -Fbin -m68000 -no-opt -spaces -o $@ -L $@.list $<

%.bin : %.sz8
	vasmz80_mot -Fbin -spaces -o $@ $<
res.o : blastem.rc
	$(WINDRES) blastem.rc res.o

arrow.tiles : arrow.png
cursor.tiles : cursor.png
font_interlace_variable.tiles : font_interlace_variable.png
button.tiles : button.png
font.tiles : font.png

menu.bin : font_interlace_variable.tiles arrow.tiles cursor.tiles button.tiles font.tiles

clean :
	rm -rf $(ALL) trans ztestrun ztestgen *.o nuklear_ui/*.o zlib/*.o