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# Run with: make -j [NUMBER_OF_CPUS]
SVG_SOURCE := assets/emojione/assets/svg
SVG_FILES := $(wildcard $(SVG_SOURCE)/*.svg)
SVG_TRACE_FILES := $(patsubst $(SVG_SOURCE)/%.svg, build/svg-trace/%.svg, $(SVG_FILES))
# Use the default Linux ramdisk, change for other systems or testing.
TMP := /dev/shm/emojione
.PHONY: build clean
all: EmojiOne-SVGinOT.ttf
EmojiOne-SVGinOT.ttf: build $(SVG_TRACE_FILES)
echo "done!"
# Create black SVG traces of the color SVGs to use as glyphs.
# 1. Make the EmojiOne SVG into a PNG with Inkscape
# 2. Make the PNG into a BMP with ImageMagick and add margin by increasing the
# canvas size to allow the outer "stroke" to fit.
# 3. Make the BMP into a Edge Detected PGM with mkbitmap
# 4. Make the PGM into a black SVG trace with potrace
build/svg-trace/%.svg: $(SVG_SOURCE)/%.svg
inkscape -w 1000 -h 1000 -z -e $(TMP)/$(*F).png $<
convert $(TMP)/$(*F).png -gravity center -background xc:transparent -extent 1066x1066 $(TMP)/$(*F).bmp
rm $(TMP)/$(*F).png
mkbitmap -g -s 1 -f 10 -o $(TMP)/$(*F).pgm $(TMP)/$(*F).bmp
rm $(TMP)/$(*F).bmp
potrace -s --height 1000pt --width 1000pt -o $@ $(TMP)/$(*F).pgm
rm $(TMP)/$(*F).pgm
# Create the build directories
build:
mkdir -p $(TMP)
mkdir -p build
mkdir -p build/svg-trace
clean:
rm -rf build
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