#
# Makefile for Linux version of Dire Wolf.
#

all : direwolf decode_aprs text2tt tt2text ll2utm utm2ll aclients

CC = gcc

#
# The DSP filters can be sped up considerably with the SSE 
# instructions.  The SSE instructions were introduced in 1999 
# with the Pentium III series.
# SSE2 instructions, added in 2000, don't seem to offer any advantage.
#
# Let's look at impact of various optimization levels.
#
# Benchmark results with Ubuntu gcc version 4.6.3, 32 bit platform.
# Intel(R) Celeron(R) CPU 2.53GHz.  Appears to have only 32 bit instructions.
#
#       seconds options, comments
#       ------  -----------------
#          123  -O2     
#          128  -O3	Slower than -O2 ?
#          123  -Ofast  (should be same as -O3 -ffastmath)
#          126  -Ofast -march=pentium
#           88  -Ofast -msse
#          108  -Ofast -march=pentium -msse
#           88  -Ofast -march=pentium3   (this implies -msse)
#           89  -Ofast -march=pentium3 -msse
#
#
# Raspberry Pi, ARM11 (ARMv6 + VFP2)
# gcc (Debian 4.6.3-14+rpi1) 4.6.3
# 
#       seconds options, comments
#       ------  -----------------
#         1015  -O2     
#          948  -O3	
#          928  -Ofast  
#          937  -Ofast -fmpu=vfp   (worse, no option for vfp2)
# 
# Are we getting any vectorizing?
#



# 
# Release 0.9 added a new feature than can consume a lot of CPU
# power:  multiple AFSK demodulators running in parallel.
# These spend a lot of time spinning around in little loops
# calculating the sums of products for the DSP filters.
#
# When gcc is generating code for a 32 bit x86 target, it
# assumes the ancient i386 processor.  This is good for
# portability but bad for performance.
#
# The code can run considerably faster by taking advantage of
# the SSE instructions available in the Pentium 3 or later.
# Here we find out if the gcc compiler is generating code
# for the i386.  If so, we add the option to assume we will 
# have at least a Pentium 3 to run on.
#
# When generating code for the x86_64 target, it is automatically
# assumed that the SSE instructions are available.
#
# If you are using gcc version 4.6 or later, you might get a 
# small improvement by using the new "-Ofast" option that is
# not available in older compilers.  
# "-O3" is used here for compatibility with older compilers.
#
# You might also get some improvement by using "-march=native"
# to fine tune the application for your particular type of
# hardware.
#
# If you are planning to distribute the binary version to
# other people (in some ham radio software collection), avoid
# fine tuning it for your particular computer.  It could
# cause compatibility issues for those with older computers.
#

arch := $(shell echo | gcc -E -dM - | grep __i386__)

ifneq ($(arch),)
CFLAGS := -DUSE_ALSA -O3 -march=pentium3 -pthread
else
CFLAGS := -DUSE_ALSA -O3 -pthread
endif


# Uncomment following lines to enable GPS interface.
# DO NOT USE THIS.  Still needs more work.
#CFLAGS += -DENABLE_GPS
#LDLIBS += -lgps


# Name of current directory.
# Used to generate zip file name for distribution.

z=$(notdir ${CURDIR})


# Main application.

direwolf : direwolf.o config.o  demod.o dsp.o demod_afsk.o demod_9600.o hdlc_rec.o \
		hdlc_rec2.o multi_modem.o redecode.o rdq.o rrbb.o \
		fcs_calc.o ax25_pad.o \
		decode_aprs.o symbols.o server.o kiss.o kissnet.o kiss_frame.o hdlc_send.o fcs_calc.o \
		gen_tone.o audio.o digipeater.o dedupe.o tq.o xmit.o \
		ptt.o beacon.o dwgps.o encode_aprs.o latlong.o encode_aprs.o latlong.o textcolor.o \
		dtmf.o aprs_tt.o tt_user.o tt_text.o igate.o \
		utm.a
	$(CC) $(CFLAGS) -o $@ $^ -lpthread -lrt -lasound $(LDLIBS) -lm


# Optimization for slow processors.

demod.o : fsk_fast_filter.h

demod_afsk.o : fsk_fast_filter.h


fsk_fast_filter.h : demod_afsk.c
	$(CC) $(CFLAGS) -o gen_fff -DGEN_FFF demod_afsk.c dsp.c textcolor.c -lm
	./gen_fff > fsk_fast_filter.h



utm.a : LatLong-UTMconversion.o
	ar -cr $@ $^

LatLong-UTMconversion.o : utm/LatLong-UTMconversion.c
	$(CC) $(CFLAGS) -c -o $@ $^


# Optional install step. 
# TODO: Review file locations.
# TODO: Handle Linux variations correctly.
# The Raspberry Pi has ~/Desktop but Ubuntu does not.
# For now, just put reference to it at the end so only last step fails.

install : direwolf decode_aprs tocalls.txt symbols-new.txt symbolsX.txt dw-icon.png direwolf.desktop
	sudo install direwolf /usr/local/bin
	sudo install decode_aprs /usr/local/bin
	sudo install text2tt /usr/local/bin
	sudo install tt2text /usr/local/bin
	sudo install ll2utm /usr/local/bin
	sudo install utm2ll /usr/local/bin
	sudo install aclients /usr/local/bin
	sudo install -D --mode=644 tocalls.txt /usr/share/direwolf/tocalls.txt
	sudo install -D --mode=644 symbols-new.txt /usr/share/direwolf/symbols-new.txt
	sudo install -D --mode=644 symbolsX.txt /usr/share/direwolf/symbolsX.txt
	sudo install -D --mode=644 dw-icon.png /usr/share/direwolf/dw-icon.png
	sudo install -D --mode=644 direwolf.desktop /usr/share/applications/direwolf.desktop
	cp direwolf.conf ~
	cp dw-start.sh ~
	sudo install -D --mode=644 CHANGES.txt /usr/local/share/doc/direwolf/CHANGES.txt
	sudo install -D --mode=644 LICENSE-dire-wolf.txt /usr/local/share/doc/direwolf/LICENSE-dire-wolf.txt
	sudo install -D --mode=644 LICENSE-other.txt /usr/local/share/doc/direwolf/LICENSE-other.txt
	sudo install -D --mode=644 User-Guide.pdf /usr/local/share/doc/direwolf/User-Guide.pdf
	sudo install -D --mode=644 Raspberry-Pi-APRS.pdf /usr/local/share/doc/direwolf/Raspberry-Pi-APRS.pdf
	sudo install -D --mode=644 APRStt-Implementation-Notes.pdf /usr/local/share/doc/direwolf/APRStt-Implementation-Notes.pdf
	sudo install -D --mode=644 Quick-Start-Guide-Windows.pdf /usr/local/share/doc/direwolf/Quick-Start-Guide-Windows.pdf
	ln -f -s /usr/share/applications/direwolf.desktop ~/Desktop/direwolf.desktop


# Separate application to decode raw data.

decode_aprs : decode_aprs.c symbols.c ax25_pad.c textcolor.c fcs_calc.c
	$(CC) $(CFLAGS) -o decode_aprs -DTEST $^ -lm



# Convert between text and touch tone representation.

text2tt : tt_text.c
	$(CC) $(CFLAGS) -DENC_MAIN -o text2tt tt_text.c

tt2text : tt_text.c
	$(CC) $(CFLAGS) -DDEC_MAIN -o tt2text tt_text.c


# Convert between Latitude/Longitude and UTM coordinates.

ll2utm : ll2utm.c utm.a
	$(CC) $(CFLAGS) -I utm -o $@ $^ -lm

utm2ll : utm2ll.c utm.a
	$(CC) $(CFLAGS) -I utm -o $@ $^ -lm



# Test application to generate sound.

gen_packets : gen_packets.c ax25_pad.c hdlc_send.c fcs_calc.c gen_tone.c textcolor.c 
	$(CC) $(CFLAGS) -o $@ $^ -lasound -lm

demod.o : tune.h
demod_afsk.o : tune.h
demod_9600.o : tune.h

testagc : atest.c demod.c dsp.c demod_afsk.c demod_9600.c hdlc_rec.c hdlc_rec2.o multi_modem.o rrbb.o fcs_calc.c ax25_pad.c decode_aprs.c symbols.c tune.h textcolor.c
	$(CC) $(CFLAGS) -o atest $^ -lm
	./atest 02_Track_2.wav | grep "packets decoded in" > atest.out


# Unit test for AFSK demodulator


atest : atest.c demod.c dsp.c demod_afsk.c demod_9600.c hdlc_rec.c hdlc_rec2.o multi_modem.o rrbb.o fcs_calc.c ax25_pad.c decode_aprs.c symbols.c textcolor.c
	$(CC) $(CFLAGS) -o $@ $^ -lm
	time ./atest ../direwolf-0.2/02_Track_2.wav 

# Unit test for inner digipeater algorithm


dtest : digipeater.c ax25_pad.c dedupe.c fcs_calc.c tq.c textcolor.c
	$(CC) $(CFLAGS) -DTEST -o $@ $^
	./dtest


# Unit test for IGate


itest : igate.c textcolor.c ax25_pad.c fcs_calc.c 
	$(CC) $(CFLAGS) -DITEST -o $@ $^
	./itest


# Unit test for UDP reception with AFSK demodulator

udptest : udp_test.c demod.c dsp.c demod_afsk.c demod_9600.c hdlc_rec.c hdlc_rec2.c multi_modem.c rrbb.c fcs_calc.c ax25_pad.c decode_aprs.c symbols.c textcolor.c
	$(CC) $(CFLAGS) -o $@ $^ -lm -lrt
	./udptest


# Multiple AGWPE network or serial port clients to test TNCs side by side.

aclients : aclients.c ax25_pad.c fcs_calc.c textcolor.c
	$(CC) $(CFLAGS) -g -o $@ $^ 


SRCS = direwolf.c demod.c dsp.c demod_afsk.c demod_9600.c hdlc_rec.c multi_modem.c fcs_calc.c ax25_pad.c decode_aprs.c symbols.c \
		server.c kiss.c kissnet.c kiss_frame.c hdlc_send.c fcs_calc.c gen_tone.c audio.c \
		digipeater.c dedupe.c tq.c xmit.c beacon.c encode_aprs.c latlong.c encode_aprs.c latlong.c


depend : $(SRCS)
	makedepend $(INCLUDES) $^

 
clean :
	rm -f direwolf decode_aprs text2tt tt2text ll2utm utm2ll fsk_fast_filter.h *.o *.a
	echo " " > tune.h


# Package it up for distribution.

dist-src : CHANGES.txt  User-Guide.pdf Quick-Start-Guide-Windows.pdf Raspberry-Pi-APRS.pdf \
		direwolf.desktop dw-start.sh 
	rm -f fsk_fast_filter.h
	echo " " > tune.h
	rm -f ../$z-src.zip
	(cd .. ; zip $z-src.zip $z/CHANGES.txt $z/LICENSE* \
		$z/User-Guide.pdf $z/Quick-Start-Guide-Windows.pdf $z/Raspberry-Pi-APRS.pdf \
		$z/Makefile* $z/*.c $z/*.h $z/regex/* $z/misc/* $z/utm/* \
		$z/*.conf $z/tocalls.txt $z/symbols-new.txt $z/symbolsX.txt \
		$z/dw-icon.png $z/dw-icon.rc $z/dw-icon.ico \
		$z/direwolf.desktop $z/dw-start.sh )


#User-Guide.pdf : User-Guide.docx
#	echo "***** User-Guide.pdf is out of date *****"

#Quick-Start-Guide-Windows.pdf : Quick-Start-Guide-Windows.docx
#	echo "***** Quick-Start-Guide-Windows.pdf is out of date *****" 

#Raspberry-Pi-APRS.pdf : Raspberry-Pi-APRS.docx
#	echo "***** Raspberry-Pi-APRS.pdf is out of date *****" 


backup :
	mkdir /cygdrive/e/backup-cygwin-home/`date +"%Y-%m-%d"`
	cp -r . /cygdrive/e/backup-cygwin-home/`date +"%Y-%m-%d"`

#
# The following is updated by "make depend"
#
# DO NOT DELETE