ifeq ($(FLAVOR),)
FLAVOR := gl
endif

CPPFLAGS := -I. -Isource -Iflavors/$(FLAVOR)/source
CFLAGS := -ggdb -Wall -Wextra
CXXFLAGS := $(CFLAGS)

PACKAGES_gldbg := libpng12

FLAVOR_ROOT := flavors/$(FLAVOR)
VPATH := $(FLAVOR_ROOT)

SOURCES_libgldbg := source/gldecoder.c \
	source/glprint.c \
	source/enums.c \
	source/arraysize.c \
	source/tmpalloc.c \
	source/packet.c \
	source/functions.c
SOURCES_glwrap := source/glwrap.c \
	source/glwrap_funcs.c \
	source/arraysize.c \
	source/packet.c \
	source/tmpalloc.c
SOURCES_gldump := source/gldump.c
SOURCES_gldbg := source/main.cpp \
	source/gldbg.cpp \
	source/commandinterpreter.cpp \
	source/process.cpp \
	source/strformat.cpp \
	source/tool.cpp
SOURCES_tracer := source/tracer.cpp
SOURCES_profiler := source/profiler.cpp
SOURCES_inspector := source/inspector.cpp \
	source/glstate.cpp \
	source/arraystate.cpp \
	source/texturestate.cpp \
	source/bufferstate.cpp \
	source/programstate.cpp
SOURCES_grabber := source/grabber.cpp \
	source/grabber_flavor.cpp
TEMPLATES := source/functions.enum.t \
	source/functions.table.t \
	source/gldecoder.funcs.t \
	source/gldecoder.struct.t \
	source/glprint.funcs.t \
	source/glwrap.funcs.t \
	source/enums.table.t

rename = $(addprefix $(1)/,$(addsuffix $(2),$(basename $(notdir $(3)))))
objs = $(call rename,temp,.o,$(1))
deps = $(call rename,temp,.d,$(1))
gen = $(call rename,gensrc,,$(1))

.PHONY: all
all: glwrap.so gldump gldbg

include flavors/$(FLAVOR)/flavor.mk

SOURCES_gldbg += $(foreach tool,$(TOOLS),$(SOURCES_$(tool)))
GENSOURCES := $(call gen,$(TEMPLATES))
SOURCES_all := $(sort $(SOURCES_libgldbg) $(SOURCES_glwrap) $(SOURCES_gldump) $(SOURCES_gldbg))

OBJECTS_libgldbg := $(call objs,$(SOURCES_libgldbg))
OBJECTS_glwrap := $(call objs,$(SOURCES_glwrap))
OBJECTS_gldump := $(call objs,$(SOURCES_gldump))
OBJECTS_gldbg := $(call objs,$(SOURCES_gldbg))

OBJECTS_all := $(call objs,$(SOURCES_all))
DEPS_all := $(call deps,$(SOURCES_all) $(TEMPLATES))

$(OBJECTS_gldbg): CXXFLAGS += $(shell pkg-config --cflags $(PACKAGES_gldbg))
gldbg: LIBS += $(shell pkg-config --libs $(PACKAGES_gldbg)) -lreadline -lrt
gldump gldbg: LIBS += ./libgldbg.a
$(OBJECTS_glwrap): CFLAGS += -fPIC
glwrap.so: LDFLAGS += -s
glwrap.so: LIBS += -ldl

glwrap.so: $(OBJECTS_glwrap) glwrap.ld
	$(CC) -shared -o $@ $^ $(LIBS) $(LDFLAGS)

gldump: $(OBJECTS_gldump) libgldbg.a
	$(CC) -o $@ $^ $(LIBS) $(LDFLAGS)

gldbg: $(OBJECTS_gldbg) libgldbg.a
	$(CXX) -o $@ $^ $(LIBS) $(LDFLAGS)

libgldbg.a: $(OBJECTS_libgldbg)
	$(AR) rc $@ $^

temp/%.o: source/%.c temp/.created
	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<

temp/%.o: source/%.cpp temp/.created
	$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) -o $@ $<

temp/.created:
	mkdir -p temp
	touch $@

gensrc/%: source/%.t gensrc/.created generate.py
	python ./generate.py $< $(APIS) >$@

gensrc/.created:
	mkdir -p gensrc
	touch $@

-include $(DEPS_all)

temp/%.d: source/%.c temp/.created
	$(CC) $(CPPFLAGS) -MM -MF $@ -MT $(call rename,temp,.o,$<) -MG $<

temp/%.d: source/%.cpp temp/.created
	$(CXX) $(CPPFLAGS) -MM -MF $@ -MT $(call rename,temp,.o,$<) -MG $<

temp/%.d: source/%.t temp/.created
	python ./generate.py --depends=$(call rename,gensrc,,$<) $< $(APIS) >$@

.PHONY: clean
clean:
	$(RM) $(DEPS_all)
	$(RM) $(OBJECTS_all)
	$(RM) gensrc/enums.table $(GENSOURCES)
	$(RM) glwrap.so libgldbg.a gldump gldbg