###############################################################################
#
# SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License, version 2.1, as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
###############################################################################

SO_NAME := libnvv4lconvert.so
DEST_DIR ?= /usr/lib/aarch64-linux-gnu/nvidia

SRCS := libv4lconvert.c tinyjpeg.c sn9c10x.c sn9c20x.c pac207.c  mr97310a.c \
	flip.c crop.c jidctflt.c spca561-decompress.c \
	rgbyuv.c sn9c2028-decomp.c spca501.c sq905c.c bayer.c hm12.c \
	stv0680.c cpia1.c se401.c jpgl.c jpeg.c jl2005bcd.c helper.c \
	$(wildcard processing/*.c) \
	$(wildcard control/*.c)

INCLUDES += -I./ -I../include -I./control -I./processing

OBJS := $(SRCS:.c=.o)

CFLAGS := -fPIC

MACHINE = $(shell uname -m)

ifeq ($(MACHINE),x86_64)
	CFLAGS += -DLIBV4L2_PLUGIN_DIR_PATH_X86
	DEST_DIR ?= /opt/nvidia/deepstream/deepstream-4.0/lib
	SYM_LINK_DIR := $(DEST_DIR)
else
	DEST_DIR ?= /usr/lib/$(MACHINE)-linux-gnu/nvidia
	SYM_LINK_DIR := $(shell realpath $(DEST_DIR)/..)
endif

LIBS = -lrt

LDFLAGS := -Wl,-soname,libv4lconvert.so.0

all: $(SO_NAME)

%.o: %.c
	$(CC) -c $< $(CFLAGS) $(INCLUDES) -o $@

$(SO_NAME): $(OBJS)
	$(CC) -shared -o $(SO_NAME) $(OBJS) $(LIBS) $(LDFLAGS)

.PHONY: install
install: $(SO_NAME)
	cp -vp $(SO_NAME) $(DEST_DIR)
	if [ "$(MACHINE)" = "aarch64" ]; then \
		ln -sf nvidia/$(SO_NAME) $(SYM_LINK_DIR)/libv4lconvert.so.0.0.999999 ; \
	else \
		ln -sf $(SO_NAME) $(SYM_LINK_DIR)/libv4lconvert.so.0.0.999999 ; \
	fi
	ln -sf libv4lconvert.so.0.0.999999 \
		$(SYM_LINK_DIR)/libv4lconvert.so
	ln -sf libv4lconvert.so.0.0.999999 \
		${SYM_LINK_DIR}/libv4lconvert.so.0

.PHONY: clean
clean:
	rm -rf $(OBJS) $(SO_NAME)