#################### COMPILE OPTIONS #######################

# Uncomment this for fixed-point build
#FIXED_POINT=1

# It is strongly recommended to uncomment one of these
# VAR_ARRAYS: Use C99 variable-length arrays for stack allocation
# USE_ALLOCA: Use alloca() for stack allocation
# If none is defined, then the fallback is a non-threadsafe global array
#CFLAGS += -DUSE_ALLOCA
#CFLAGS += -DVAR_ARRAYS

# These options affect performance
# HAVE_LRINTF: Use C99 intrinsics to speed up float-to-int conversion
# restrict: Don't use the 'restrict' optimization (for pre-C99 compilers)
#CFLAGS += -DHAVE_LRINTF
CFLAGS += -Drestrict=

###################### END OF OPTIONS ######################

CFLAGS += -DOPUS_VERSION='"0.9.6"'
include silk_sources.mk
include celt_sources.mk
include opus_sources.mk

ifdef FIXED_POINT
SILK_SOURCES += $(SILK_SOURCES_FIXED)
else
SILK_SOURCES += $(SILK_SOURCES_FLOAT)
endif

EXESUFFIX =
LIBPREFIX = lib
LIBSUFFIX = .a
OBJSUFFIX = .o

CC     = $(TOOLCHAIN_PREFIX)gcc$(TOOLCHAIN_SUFFIX)
CXX    = $(TOOLCHAIN_PREFIX)g++$(TOOLCHAIN_SUFFIX)
AR     = $(TOOLCHAIN_PREFIX)ar
RANLIB = $(TOOLCHAIN_PREFIX)ranlib
CP     = $(TOOLCHAIN_PREFIX)cp

cppflags-from-defines   = $(addprefix -D,$(1))
cppflags-from-includes  = $(addprefix -I,$(1))
ldflags-from-ldlibdirs  = $(addprefix -L,$(1))
ldlibs-from-libs                = $(addprefix -l,$(1))

WARNINGS = -Wall -W -Wstrict-prototypes -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses -Wno-unused-parameter -Wno-sign-compare
CFLAGS  += -O2 -g $(WARNINGS) -DOPUS_BUILD
ifdef FIXED_POINT
CFLAGS += -DFIXED_POINT=1 -DDISABLE_FLOAT_API
endif

CFLAGS  += $(call cppflags-from-defines,$(CDEFINES))
CFLAGS  += $(call cppflags-from-includes,$(CINCLUDES))
LDFLAGS += $(call ldflags-from-ldlibdirs,$(LDLIBDIRS))
LDLIBS  += $(call ldlibs-from-libs,$(LIBS))

COMPILE.c.cmdline   = $(CC) -c $(CFLAGS) -o $@ $<
COMPILE.cpp.cmdline = $(CXX) -c $(CFLAGS) -o $@ $<
LINK.o              = $(CC) $(LDPREFLAGS) $(LDFLAGS)
LINK.o.cmdline      = $(LINK.o) $^ $(LDLIBS) -o $@$(EXESUFFIX)

ARCHIVE.cmdline     = $(AR) $(ARFLAGS) $@ $^ && $(RANLIB) $@

%$(OBJSUFFIX):%.c
	$(COMPILE.c.cmdline)

%$(OBJSUFFIX):%.cpp
	$(COMPILE.cpp.cmdline)

# Directives

CINCLUDES += silk/ \
        silk/float/ \
        silk/fixed/ \
	libcelt/ \
	src/

# VPATH e.g. VPATH = src:../headers
VPATH = ./ \
        silk/interface \
        silk/src_FIX \
        silk/src_FLP \
        silk/src_SigProc_FIX \
        silk/src_SigProc_FLP \
        test

# Variable definitions
LIB_NAME = opus
TARGET = $(LIBPREFIX)$(LIB_NAME)$(LIBSUFFIX)

SRCS_C = $(SILK_SOURCES) $(CELT_SOURCES) $(OPUS_SOURCES)

OBJS := $(patsubst %.c,%$(OBJSUFFIX),$(SRCS_C))

TESTOPUS_SRCS_C = src/test_opus.c
TESTOPUS_OBJS := $(patsubst %.c,%$(OBJSUFFIX),$(TESTOPUS_SRCS_C))

LIBS = m

LDLIBDIRS = ./

# Rules
default: all

all: $(TARGET) lib test_opus

lib: $(TARGET)

$(TARGET): $(OBJS)
	$(ARCHIVE.cmdline)

test_opus$(EXESUFFIX): $(TESTOPUS_OBJS) $(TARGET)
	$(LINK.o.cmdline)
	
clean:
	rm -f test_opus$(EXESUFFIX) $(TARGET) $(OBJS) $(TESTOPUS_OBJS)