main/Makefile
Doug Felt 494fb41a68 Copy original file if pngquant can't compress it.
--skip_if_larger does nothing and returns an error if pngquant would
generate a larger file than the original.  Formerly we would not copy
the file in this case so later operations expecting the file would fail.
No image triggered this, though, so the issue went unnoticed.  We want
the smaller of the two files.  It's unclear if later compression using
optipng would still do better with the larger quantized file vs the
original unquantized file, but we need to have a file.
2017-01-25 09:16:47 -08:00

217 lines
6.6 KiB
Makefile

# Copyright 2014 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
EMOJI = NotoColorEmoji
font: $(EMOJI).ttf
CFLAGS = -std=c99 -Wall -Wextra `pkg-config --cflags --libs cairo`
LDFLAGS = -lm `pkg-config --libs cairo`
PNGQUANTDIR := third_party/pngquant
PNGQUANT := $(PNGQUANTDIR)/pngquant
PNGQUANTFLAGS = --speed 1 --skip-if-larger --force
# zopflipng is better (about 5-10%) but much slower. it will be used if
# present. pass ZOPFLIPNG= as an arg to make to use optipng instead.
ZOPFLIPNG = zopflipng
OPTIPNG = optipng
EMOJI_BUILDER = third_party/color_emoji/emoji_builder.py
ADD_GLYPHS = third_party/color_emoji/add_glyphs.py
PUA_ADDER = map_pua_emoji.py
VS_ADDER = add_vs_cmap.py # from nototools
EMOJI_SRC_DIR := png/128
FLAGS_SRC_DIR := third_party/region-flags/png
BUILD_DIR := build
EMOJI_DIR := $(BUILD_DIR)/emoji
FLAGS_DIR := $(BUILD_DIR)/flags
RESIZED_FLAGS_DIR := $(BUILD_DIR)/resized_flags
RENAMED_FLAGS_DIR := $(BUILD_DIR)/renamed_flags
QUANTIZED_DIR := $(BUILD_DIR)/quantized_pngs
COMPRESSED_DIR := $(BUILD_DIR)/compressed_pngs
# Unknown flag is PUA fe82b
LIMITED_FLAGS = CN DE ES FR GB IT JP KR RU US
SELECTED_FLAGS = AC AD AE AF AG AI AL AM AO AQ AR AS AT AU AW AX AZ \
BA BB BD BE BF BG BH BI BJ BM BN BO BR BS BT BW BY BZ \
CA CC CD CF CG CH CI CK CL CM CN CO CR CU CV CW CX CY CZ \
DE DJ DK DM DO DZ \
EC EE EG ER ES ET EU \
FI FJ FM FO FR \
GA GB GD GE GG GH GI GL GM GN GQ GR GT GU GW GY \
HK HN HR HT HU \
IC ID IE IL IM IN IO IQ IR IS IT \
JE JM JO JP \
KE KG KH KI KM KN KP KR KW KY KZ \
LA LB LC LI LK LR LS LT LU LV LY \
MA MC MD ME MG MH MK ML MM MN MO MP MR MS MT MU MV MW MX MY MZ \
NA NE NF NG NI NL NO NP NR NU NZ \
OM \
PA PE PF PG PH PK PL PN PR PS PT PW PY \
QA \
RO RS RU RW \
SA SB SC SD SE SG SH SI SK SL SM SN SO SR SS ST SV SX SY SZ \
TA TC TD TG TH TJ TK TL TM TN TO TR TT TV TW TZ \
UA UG UN US UY UZ \
VA VC VE VG VI VN VU \
WS \
YE \
ZA ZM ZW
ALL_FLAGS = $(basename $(notdir $(wildcard $(FLAGS_SRC_DIR)/*.png)))
FLAGS = $(SELECTED_FLAGS)
FLAG_NAMES = $(FLAGS:%=%.png)
FLAG_FILES = $(addprefix $(FLAGS_DIR)/, $(FLAG_NAMES))
RESIZED_FLAG_FILES = $(addprefix $(RESIZED_FLAGS_DIR)/, $(FLAG_NAMES))
FLAG_GLYPH_NAMES = $(shell ./flag_glyph_name.py $(FLAGS))
RENAMED_FLAG_NAMES = $(FLAG_GLYPH_NAMES:%=emoji_%.png)
RENAMED_FLAG_FILES = $(addprefix $(RENAMED_FLAGS_DIR)/, $(RENAMED_FLAG_NAMES))
EMOJI_NAMES = $(notdir $(wildcard $(EMOJI_SRC_DIR)/emoji_u*.png))
EMOJI_FILES= $(addprefix $(EMOJI_DIR)/,$(EMOJI_NAMES)))
ALL_NAMES = $(EMOJI_NAMES) $(RENAMED_FLAG_NAMES)
ALL_QUANTIZED_FILES = $(addprefix $(QUANTIZED_DIR)/, $(ALL_NAMES))
ALL_COMPRESSED_FILES = $(addprefix $(COMPRESSED_DIR)/, $(ALL_NAMES))
# tool checks
ifeq (,$(shell which $(ZOPFLIPNG)))
ifeq (,$(wildcard $(ZOPFLIPNG)))
MISSING_ZOPFLI = fail
endif
endif
ifeq (,$(shell which $(OPTIPNG)))
ifeq (,$(wildcard $(OPTIPNG)))
MISSING_OPTIPNG = fail
endif
endif
ifeq (, $(shell which $(VS_ADDER)))
MISSING_ADDER = fail
endif
emoji: $(EMOJI_FILES)
flags: $(FLAG_FILES)
resized_flags: $(RESIZED_FLAG_FILES)
renamed_flags: $(RENAMED_FLAG_FILES)
quantized: $(ALL_QUANTIZED_FILES)
compressed: $(ALL_COMPRESSED_FILES)
check_compress_tool:
ifdef MISSING_ZOPFLI
ifdef MISSING_OPTIPNG
$(error "neither $(ZOPFLIPNG) nor $(OPTIPNG) is available")
else
@echo "using $(OPTIPNG)"
endif
else
@echo "using $(ZOPFLIPNG)"
endif
check_vs_adder:
ifdef MISSING_ADDER
$(error "$(VS_ADDER) not in path, run setup.py in nototools")
endif
$(EMOJI_DIR) $(FLAGS_DIR) $(RESIZED_FLAGS_DIR) $(RENAMED_FLAGS_DIR) $(QUANTIZED_DIR) $(COMPRESSED_DIR):
mkdir -p "$@"
$(PNGQUANT):
$(MAKE) -C $(PNGQUANTDIR)
waveflag: waveflag.c
$(CC) $< -o $@ $(CFLAGS) $(LDFLAGS)
$(EMOJI_DIR)/%.png: $(EMOJI_SRC_DIR)/%.png | $(EMOJI_DIR)
@echo "emoji $< $@"
@convert -extent 136x128 -gravity center -background none "$<" "$@"
$(FLAGS_DIR)/%.png: $(FLAGS_SRC_DIR)/%.png ./waveflag $(PNGQUANT) | $(FLAGS_DIR)
@./waveflag $(FLAGS_DIR)/ "$<"
$(RESIZED_FLAGS_DIR)/%.png: $(FLAGS_DIR)/%.png | $(RESIZED_FLAGS_DIR)
@convert -extent 136x128 -gravity center -background none "$<" "$@"
flag-symlinks: $(RESIZED_FLAG_FILES) | $(RENAMED_FLAGS_DIR)
@$(subst ^, , \
$(join \
$(FLAGS:%=ln^-fs^../resized_flags/%.png^), \
$(RENAMED_FLAG_FILES:%=%; ) \
) \
)
$(RENAMED_FLAG_FILES): | flag-symlinks
$(QUANTIZED_DIR)/%.png: $(RENAMED_FLAGS_DIR)/%.png $(PNGQUANT) | $(QUANTIZED_DIR)
@($(PNGQUANT) $(PNGQUANTFLAGS) -o "$@" "$<"; case "$$?" in "98") cp $< $@;; *) exit "$$?";; esac)
$(QUANTIZED_DIR)/%.png: $(EMOJI_DIR)/%.png $(PNGQUANT) | $(QUANTIZED_DIR)
@($(PNGQUANT) $(PNGQUANTFLAGS) -o "$@" "$<"; case "$$?" in "98") cp $< $@;; *) exit "$$?";; esac)
$(COMPRESSED_DIR)/%.png: $(QUANTIZED_DIR)/%.png | check_compress_tool $(COMPRESSED_DIR)
ifdef MISSING_ZOPFLI
$(OPTIPNG) -quiet -o7 -clobber -force -out "$@" "$<"
else
$(ZOPFLIPNG) -y "$<" "$@" 1> /dev/null 2>&1
endif
# Make 3.81 can endless loop here if the target is missing but no
# prerequisite is updated and make has been invoked with -j, e.g.:
# File `font' does not exist.
# File `NotoColorEmoji.tmpl.ttx' does not exist.
# File `font' does not exist.
# File `NotoColorEmoji.tmpl.ttx' does not exist.
# ...
# Run make without -j if this happens.
%.ttx: %.ttx.tmpl $(ADD_GLYPHS) $(ALL_COMPRESSED_FILES)
@python $(ADD_GLYPHS) "$<" "$@" "$(COMPRESSED_DIR)/emoji_u"
%.ttf: %.ttx
@rm -f "$@"
ttx "$<"
$(EMOJI).ttf: $(EMOJI).tmpl.ttf $(EMOJI_BUILDER) $(PUA_ADDER) \
$(ALL_COMPRESSED_FILES) | check_vs_adder
@python $(EMOJI_BUILDER) -V $< "$@" "$(COMPRESSED_DIR)/emoji_u"
@python $(PUA_ADDER) "$@" "$@-with-pua"
$(VS_ADDER) -vs 2640 2642 2695 --dstdir '.' -o "$@-with-pua-varsel" "$@-with-pua"
mv "$@-with-pua-varsel" "$@"
rm "$@-with-pua"
clean:
rm -f $(EMOJI).ttf $(EMOJI).tmpl.ttf $(EMOJI).tmpl.ttx
rm -f waveflag
rm -rf $(BUILD_DIR)
.SECONDARY: $(EMOJI_FILES) $(FLAG_FILES) $(RESIZED_FLAG_FILES) $(RENAMED_FLAG_FILES) \
$(ALL_QUANTIZED_FILES) $(ALL_COMPRESSED_FILES)
.PHONY: clean flags emoji renamed_flags quantized compressed check_compress_tool