TARGET = retroarch.js

OS = Emscripten
OBJ :=
DEFINES := -DRARCH_INTERNAL -DHAVE_OVERLAY
DEFINES += -DHAVE_OPENGL -DHAVE_OPENGLES -DHAVE_OPENGLES2 -DHAVE_EGL -DHAVE_OVERLAY -DHAVE_GLSL

HAVE_OPENGL = 1
HAVE_EMSCRIPTEN = 1
HAVE_RGUI = 1
HAVE_SDL = 0
HAVE_ZLIB = 1
HAVE_FBO = 1
WANT_MINIZ = 1
MEMORY = 67108864
LTO = 0
# XXX: setting this to 1/2 currently crashes Firefox nightly
PRECISE_F32 = 2

ifneq ($(NATIVE_ZLIB),)
   WANT_MINIZ = 0
endif

LIBS    :=
LDFLAGS := -L. -s TOTAL_MEMORY=$(MEMORY) -s OUTLINING_LIMIT=50000 --js-library emscripten/library_rwebaudio.js --js-library emscripten/library_rwebinput.js --js-library emscripten/library_rwebcam.js --no-heap-copy

include Makefile.common

libretro = libretro_emscripten.bc

ifneq ($(V), 1)
   Q := @
endif

ifeq ($(DEBUG), 1)
   LDFLAGS += -O0 -g
   CFLAGS += -O0 -g
else
   LDFLAGS += -O2
   # WARNING: some optimizations can break some cores (ex: LTO breaks tyrquake)
   LDFLAGS += -s PRECISE_F32=$(PRECISE_F32)
   ifeq ($(LTO), 1)
      LDFLAGS += --llvm-lto 3
   endif
   CFLAGS += -O2
endif

CFLAGS += -Wall -Wno-unused-result -Wno-unused-variable -I. -std=gnu99

all: $(TARGET)

$(TARGET): $(OBJ)
	@$(if $(Q), $(shell echo echo LD $@),)
	$(Q)$(LD) -o $@ $(OBJ) $(libretro) $(LIBS) $(LDFLAGS)

%.o: %.c
	@$(if $(Q), $(shell echo echo CC $<),)
	$(Q)$(CC) $(CFLAGS) $(DEFINES) -c -o $@ $<

%.o: %.cpp
	@$(if $(Q), $(shell echo echo CXX $<),)
	$(Q)$(CXX) $(CXXFLAGS) $(DEFINES) -c -o $@ $<

clean:
	rm -f *.o
	rm -f deps/rzlib/*.o
	rm -f frontend/*.o
	rm -f frontend/menu/*.o
	rm -f frontend/menu/disp/*.o
	rm -f audio/*.o
	rm -f audio/xaudio-c/*.o
	rm -f compat/*.o
	rm -f compat/rxml/*.o
	rm -f conf/*.o
	rm -f gfx/scaler/*.o
	rm -f gfx/*.o
	rm -f gfx/d3d/*.o
	rm -f gfx/context/*.o
	rm -f gfx/math/*.o
	rm -f gfx/fonts/*.o
	rm -f gfx/py_state/*.o
	rm -f gfx/rpng/*.o
	rm -f gfx/glsym/*.o
	rm -f record/*.o
	rm -f input/*.o
	rm -f tools/*.o
	rm -f $(TARGET)

.PHONY: all clean