# SPDX-FileCopyrightText: 2023 Brian Woods
# SPDX-License-Identifier: GPL-2.0-or-later

SRC_DIR=src
OUT_DIR=high_quality
WEBP_OPT=-near_lossless 60

SRC=$(shell find ${SRC_DIR}/ -type f -name '*.png')
OUT=$(patsubst ${SRC_DIR}/%.png, ${OUT_DIR}/%.webp, $(SRC))

.PHONY: all clean
.SECONDARY: main-build

all: pre-build main-build

pre-build:
	( cd ${SRC_DIR};  find ./ -mindepth 1 -type d ) | xargs -I{} mkdir -p "${OUT_DIR}/{}"

main-build: ${OUT}

${OUT_DIR}/%.webp: ${SRC_DIR}/%.png pre-build
	cwebp ${WEBP_OPT} "$<" -o "$@"

clean:
	rm -rf ${OUT_DIR}