mirror of
https://github.com/googlefonts/noto-emoji.git
synced 2025-06-07 23:37:58 +00:00
34fbef4348
Change the build process to provide more intermediate steps and maintain intermediate targets. This slows down make's analysis phase, though. Make can be run with -j to parallelize the building, but be careful with multiple targets on the command line (e.g. 'make clean font') since clean's deletion of the output tree can sometimes occur after some of the output directories get built. This is preparatory to replacing the png images with the original internal set. These require a bit more cleanup and processing, which is what these changes do. The overall flow is: - convert all emoji to desired size (136x128). All are smaller than this, most are 128x128 but there are some others. - run waveflag on the flags - convert all flags to desired size(136x128). The flags are 128x128 originally. - 'rename' the flags by creating softlinks with the desired names - run pngquant on all the images and copy them into a single directory, this reduces slight antialiasing differences. - compress all the images, using zopflipng if available, else optipng. zopflipng saves about 10%, but is 10x slower. The remaining steps of building the font are unchanged, for the moment. The intermediate image files are put into a 'build' subdirectory to organize them and keep them out of the way.
207 lines
6.1 KiB
Makefile
207 lines
6.1 KiB
Makefile
# Copyright 2014 Google Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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EMOJI = NotoColorEmoji
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font: $(EMOJI).ttf
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CFLAGS = -std=c99 -Wall -Wextra `pkg-config --cflags --libs cairo`
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LDFLAGS = `pkg-config --libs cairo`
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PNGQUANTDIR := third_party/pngquant
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PNGQUANT := $(PNGQUANTDIR)/pngquant
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PNGQUANTFLAGS = --speed 1 --skip-if-larger --force
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# zopflipng is better (about 10%) but much slower. it will be used if
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# present. pass ZOPFLIPNG= as an arg to make to use optipng instead.
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ZOPFLIPNG = zopflipng
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OPTIPNG = optipng
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EMOJI_BUILDER = third_party/color_emoji/emoji_builder.py
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ADD_GLYPHS = third_party/color_emoji/add_glyphs.py
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PUA_ADDER = map_pua_emoji.py
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VS_ADDER = add_vs_cmap.py # from nototools
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#EMOJI_SRC_DIR := png/128
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EMOJI_SRC_DIR := /usr/local/google/users/dougfelt/emoji_google/noto-emoji-source/png
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FLAGS_SRC_DIR := third_party/region-flags/png
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BUILD_DIR := build
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EMOJI_DIR := $(BUILD_DIR)/emoji
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FLAGS_DIR := $(BUILD_DIR)/flags
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RESIZED_FLAGS_DIR := $(BUILD_DIR)/resized_flags
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RENAMED_FLAGS_DIR := $(BUILD_DIR)/renamed_flags
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QUANTIZED_DIR := $(BUILD_DIR)/quantized_pngs
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COMPRESSED_DIR := $(BUILD_DIR)/compressed_pngs
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LIMITED_FLAGS = CN DE ES FR GB IT JP KR RU US
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SELECTED_FLAGS = AD AE AF AG AI AL AM AO AR AS AT AU AW AX AZ \
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BA BB BD BE BF BG BH BI BJ BM BN BO BR BS BT BW BY BZ \
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CA CC CD CF CG CH CI CK CL CM CN CO CR CU CV CW CX CY CZ \
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DE DJ DK DM DO DZ \
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EC EE EG ER ES ET EU \
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FI FJ FM FO FR \
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GA GB GD GE GG GH GI GL GM GN GQ GR GT GU GW GY \
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HK HN HR HT HU \
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ID IE IL IM IN IO IQ IR IS IT \
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JE JM JO JP \
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KE KG KH KI KM KN KP KR KW KY KZ \
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LA LB LC LI LK LR LS LT LU LV LY \
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MA MC MD ME MG MH MK ML MM MN MO MP MR MS MT MU MV MW MX MY MZ \
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NA NE NF NG NI NL NO NP NR NU NZ \
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OM \
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PA PE PF PG PH PK PL PN PR PS PT PW PY \
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QA \
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RO RS RU RW \
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SA SB SC SD SE SG SI SK SL SM SN SO SR SS ST SV SX SY SZ \
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TC TD TG TH TJ TK TL TM TN TO TR TT TV TW TZ \
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UA UG US UY UZ \
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VA VC VE VG VI VN VU \
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WS \
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YE \
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ZA ZM ZW
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ALL_FLAGS = ($basename ($notdir $(wildcard $(FLAGS_SRC_DIR)/*.png)))
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FLAGS = $(SELECTED_FLAGS)
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FLAG_NAMES = $(FLAGS:%=%.png)
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FLAG_FILES = $(addprefix $(FLAGS_DIR)/, $(FLAG_NAMES))
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RESIZED_FLAG_FILES = $(addprefix $(RESIZED_FLAGS_DIR)/, $(FLAG_NAMES))
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FLAG_GLYPH_NAMES = $(shell ./flag_glyph_name.py $(FLAGS))
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RENAMED_FLAG_NAMES = $(FLAG_GLYPH_NAMES:%=emoji_%.png)
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RENAMED_FLAG_FILES = $(addprefix $(RENAMED_FLAGS_DIR)/, $(RENAMED_FLAG_NAMES))
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EMOJI_NAMES = $(notdir $(wildcard $(EMOJI_SRC_DIR)/emoji_u*.png))
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EMOJI_FILES= $(addprefix $(EMOJI_DIR)/,$(EMOJI_NAMES)))
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ALL_NAMES = $(EMOJI_NAMES) $(RENAMED_FLAG_NAMES)
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ALL_QUANTIZED_FILES = $(addprefix $(QUANTIZED_DIR)/, $(ALL_NAMES))
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ALL_COMPRESSED_FILES = $(addprefix $(COMPRESSED_DIR)/, $(ALL_NAMES))
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# tool checks
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ifeq (,$(shell which $(ZOPFLIPNG)))
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ifeq (,$(wildcard $(ZOPFLIPNG)))
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MISSING_ZOPFLI = fail
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endif
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endif
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ifeq (,$(shell which $(OPTIPNG)))
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ifeq (,$(wildcard $(OPTIPNG)))
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MISSING_OPTIPNG = fail
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endif
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endif
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ifeq (, $(shell which $(VS_ADDER)))
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MISSING_ADDER = fail
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endif
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emoji: $(EMOJI_FILES)
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flags: $(FLAG_FILES)
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resized_flags: $(RESIZED_FLAG_FILES)
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renamed_flags: $(RENAMED_FLAG_FILES)
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quantized: $(ALL_QUANTIZED_FILES)
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compressed: $(ALL_COMPRESSED_FILES)
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check_compress_tool:
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ifdef MISSING_ZOPFLI
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ifdef MISSING_OPTIPNG
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$(error "neither $(ZOPFLIPNG) nor $(OPTIPNG) is available")
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else
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@echo "using $(OPTIPNG)"
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endif
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else
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@echo "using $(ZOPFLIPNG)"
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endif
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check_vs_adder:
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ifdef MISSING_ADDER
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$(error "$(VS_ADDER) not in path, run setup.py in nototools")
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endif
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$(EMOJI_DIR) $(FLAGS_DIR) $(RESIZED_FLAGS_DIR) $(RENAMED_FLAGS_DIR) $(QUANTIZED_DIR) $(COMPRESSED_DIR):
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mkdir -p "$@"
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$(PNGQUANT):
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$(MAKE) -C $(PNGQUANTDIR)
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waveflag: waveflag.c
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$(CC) $< -o $@ $(CFLAGS) $(LDFLAGS)
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$(EMOJI_DIR)/%.png: $(EMOJI_SRC_DIR)/%.png | $(EMOJI_DIR)
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echo "emoji $< $@"
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@convert -extent 136x128 -gravity center -background none "$<" "$@"
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$(FLAGS_DIR)/%.png: $(FLAGS_SRC_DIR)/%.png ./waveflag $(PNGQUANT) | $(FLAGS_DIR)
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@./waveflag "$<" "$@"
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$(RESIZED_FLAGS_DIR)/%.png: $(FLAGS_DIR)/%.png | $(RESIZED_FLAGS_DIR)
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@convert -extent 136x128 -gravity center -background none "$<" "$@"
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flag-symlinks: $(RESIZED_FLAG_FILES) | $(RENAMED_FLAGS_DIR)
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@$(subst ^, , \
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$(join \
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$(FLAGS:%=ln^-fs^../resized_flags/%.png^), \
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$(RENAMED_FLAG_FILES:%=%; ) \
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) \
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)
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$(RENAMED_FLAG_FILES): flag-symlinks
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$(QUANTIZED_DIR)/%.png: $(RENAMED_FLAGS_DIR)/%.png $(PNGQUANT) | $(QUANTIZED_DIR)
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$(PNGQUANT) $(PNGQUANTFLAGS) -o "$@" "$<"
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$(QUANTIZED_DIR)/%.png: $(EMOJI_DIR)/%.png $(PNGQUANT) | $(QUANTIZED_DIR)
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$(PNGQUANT) $(PNGQUANTFLAGS) -o "$@" "$<"
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$(COMPRESSED_DIR)/%.png: $(QUANTIZED_DIR)/%.png | check_compress_tool $(COMPRESSED_DIR)
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ifdef MISSING_ZOPFLI
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$(OPTIPNG) -quiet -o7 -force -out "$@" "$<"
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else
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$(ZOPFLIPNG) -y "$<" "$@" 2> /dev/null
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endif
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%.ttx: %.ttx.tmpl $(ADD_GLYPHS) $(ALL_COMPRESSED_FILES)
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@python $(ADD_GLYPHS) "$<" "$@" "$(COMPRESSED_DIR)/emoji_u"
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%.ttf: %.ttx
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@rm -f "$@"
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ttx "$<"
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$(EMOJI).ttf: $(EMOJI).tmpl.ttf $(EMOJI_BUILDER) $(PUA_ADDER) \
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$(ALL_COMPRESSED_FILES) | check_vs_adder
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@python $(EMOJI_BUILDER) -V $< "$@" "$(COMPRESSED_DIR)/emoji_u"
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@python $(PUA_ADDER) "$@" "$@-with-pua"
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$(VS_ADDER) --dstdir '.' -o "$@-with-pua-varsel" "$@-with-pua"
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mv "$@-with-pua-varsel" "$@"
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rm "$@-with-pua"
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clean:
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rm -f $(EMOJI).ttf $(EMOJI).tmpl.ttf $(EMOJI).tmpl.ttx
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rm -f waveflag
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rm -rf $(BUILD_DIR)
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.SECONDARY: $(EMOJI_FILES) $(FLAG_FILES) $(RESIZED_FLAG_FILES) $(RENAMED_FLAG_FILES) \
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$(ALL_QUANTIZED_FILES) $(ALL_COMPRESSED_FILES)
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.PHONY: clean flags emoji renamed_flags quantized compressed check_compress_tool
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