WARNINGS=-W -Wall -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return \

    -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wbad-function-cast \

    -Wwrite-strings

CFLAGS=-O3 -I.. -I../tools $(WARNINGS)

CFLAGS+=-ffast-math -fomit-frame-pointer 

#CFLAGS+=-funroll-loops

#CFLAGS+=-march=prescott 

#CFLAGS+= -mtune=native 

# TIP: try adding -openmp or -fopenmp  to enable OPENMP directives and use of multiple cores

#CFLAGS+=-fopenmp

CFLAGS+= $(CFLAGADD)

ifeq "$(NFFT)" ""

 NFFT=1800

endif

ifeq "$(NUMFFTS)" ""

 NUMFFTS=10000

endif

ifeq "$(DATATYPE)" ""

 DATATYPE=float

endif

BENCHKISS=bm_kiss_$(DATATYPE)

BENCHFFTW=bm_fftw_$(DATATYPE)

SELFTEST=st_$(DATATYPE)

TESTREAL=tr_$(DATATYPE)

TESTKFC=tkfc_$(DATATYPE)

FASTFILTREAL=ffr_$(DATATYPE)

SELFTESTSRC=twotonetest.c

TYPEFLAGS=-Dkiss_fft_scalar=$(DATATYPE)

ifeq  "$(DATATYPE)" "int16_t" 

 TYPEFLAGS=-DFIXED_POINT=16

endif

ifeq  "$(DATATYPE)" "int32_t"

 TYPEFLAGS=-DFIXED_POINT=32 

endif

ifeq  "$(DATATYPE)" "simd"

 TYPEFLAGS=-DUSE_SIMD=1 -msse

endif

ifeq  "$(DATATYPE)" "float"

 # fftw needs to be built with --enable-float to build this lib

 FFTWLIB=-lfftw3f

else

 FFTWLIB=-lfftw3

endif

FFTWLIBDIR=-L/usr/local/lib/

SRCFILES=../kiss_fft.c ../tools/kiss_fftnd.c ../tools/kiss_fftr.c pstats.c ../tools/kfc.c ../tools/kiss_fftndr.c

all: tools $(BENCHKISS) $(SELFTEST) $(BENCHFFTW) $(TESTREAL) $(TESTKFC)

tools:

	cd ../tools && make all

$(SELFTEST): $(SELFTESTSRC) $(SRCFILES)

	$(CC) -o $@ $(CFLAGS) $(TYPEFLAGS) $+ -lm 

$(TESTKFC): $(SRCFILES) 

	$(CC) -o $@ $(CFLAGS)  -DKFC_TEST $(TYPEFLAGS) $+ -lm

$(TESTREAL): test_real.c $(SRCFILES)

	$(CC) -o $@ $(CFLAGS) $(TYPEFLAGS) $+ -lm

$(BENCHKISS): benchkiss.c $(SRCFILES)

	$(CC) -o $@ $(CFLAGS) $(TYPEFLAGS)  $+ -lm

$(BENCHFFTW): benchfftw.c pstats.c

	@echo "======attempting to build FFTW benchmark"

	@$(CC) -o $@ $(CFLAGS) -DDATATYPE$(DATATYPE) $+ $(FFTWLIB) $(FFTWLIBDIR) -lm || echo "FFTW not available for comparison"

test: all

	@./$(TESTKFC)

	@echo "======1d & 2-d complex fft self test (type= $(DATATYPE) )"

	@./$(SELFTEST)

	@echo "======real FFT (type= $(DATATYPE) )"

	@./$(TESTREAL)

	@echo "======timing test (type=$(DATATYPE))"

	@./$(BENCHKISS) -x $(NUMFFTS) -n $(NFFT) 

	@[ -x ./$(BENCHFFTW) ] && ./$(BENCHFFTW) -x $(NUMFFTS) -n $(NFFT) ||true

	@echo "======higher dimensions type=$(DATATYPE))"

	@./testkiss.py

selftest.c:

	./mk_test.py 10 12 14 > selftest.c

selftest_short.c:

	./mk_test.py -s 10 12 14 > selftest_short.c

CXXFLAGS=-O3 -ffast-math -fomit-frame-pointer  -I.. -I../tools -W -Wall

testcpp: testcpp.cc ../kissfft.hh

	$(CXX) -o $@ $(CXXFLAGS) testcpp.cc -lm

clean:

	rm -f *~ bm_* st_* tr_* kf_* tkfc_* ff_* ffr_* *.pyc *.pyo *.dat testcpp