# chemin des librairies


PATH_GCC = $(PWD)

PATH_LIB = $(PATH_GCC)/lib/
PATH_SRC = $(PATH_GCC)/src/
PATH_EXEC = $(PATH_GCC)/exec/

# repertoires pour les headers
PATH_INCLUDE = $(PATH_GCC)/src/

# compilateur
CC = gcc
NVCC = /usr/local/cuda/bin/nvcc
CXX = g++

# options de compilation
# -Wall : Warning all
# -g : debug (ex : gdb sas)
# -pg : profile memoire et cpu pour chaque fonctions (ex : gprof name | less)
# -O3 : optimisation code -O0 (rien) ~ -O3 (maxi)
# -fstrict-aliasing : aligne  la memoire sur 32 bits

# gcc
OPTION_CC1 = -Wall -O3 -static #-pg #-g -fprofile-arcs -ftest-coverage
OPTION_CC2 =  $(OPTION_CC1)  -funroll-all-loops -fstrict-aliasing 

OPTION_CC = $(OPTION_CC2) -I$(PATH_INCLUDE) -I$(PATH_SRC)


# librairies pour la compilation
LIB_CC = -lm 
LIBSNV = -L/usr/local/cuda/lib64 -lcuda -lcudart

# sources utiles a la compilation des main
SRCS = 	lib_alloc.c lib_images.c lib_math.c lib_snake_common.c lib_contour.c

SRCS_NV =  lib_test_gpu.cu lib_snake_2_gpu.cu lib_gpu.cu snake2D_gpu.cu

OBJS = $(SRCS:%.c=$(PATH_LIB)%.o) $(SRCS_NV:%.cu=$(PATH_LIB)%.o)

# dependances supplementaires
DEPS =  $(PATH_SRC)/constantes.h $(PATH_SRC)/structures.h $(PATH_GCC)/makefile
help :
	@echo "cibles : snake2D doc clean"

all : snake2D doc
clean :
	-rm -f $(PATH_LIB)*.o
	-rm -rf $(PATH_GCC)/docs/


# regle pour les .o
# --use_fast_math
# --ptxas-options=-v
$(PATH_LIB)%_gpu.o :	$(PATH_SRC)%_gpu.cu
			$(NVCC) -arch=sm_20 --use_fast_math -c $< -o $@	

$(PATH_LIB)%.o :	$(PATH_SRC)%.c $(DEPS)
			$(CC) $(OPTION_CC) -c $< -o $@

# regle pour l'exec

$(PATH_EXEC)SNAKE2D :	$(PATH_SRC)snake2D_gpu.cu $(OBJS) $(DEPS)
			$(CXX) $(OBJS) $(LIBSNV) \
			-o $(PATH_EXEC)SNAKE2D

# compilation main

snake2D :	$(PATH_EXEC)SNAKE2D
		@echo ""
		@echo "***** fin compil snake2D *****"
		@echo ""

# generation des doc

doc :		
		doxygen doxygen.conf
		@echo ""
		@echo "***** fin compil doc *****"
		@echo ""