Update postproc script and instructions
Rod S
parent
9aca844e1b
commit
58e371b3d4
|
|
@ -23,11 +23,14 @@ contains emojicompat metadata.
|
|||
cp build/NotoColorEmoji-noflags.ttf ../fonts/Noto-COLRv1-noflags.ttf
|
||||
```
|
||||
|
||||
1. Post-process COLRv1 font for Android
|
||||
1. Post-process COLRv1 fonts
|
||||
* Adds some additional sequences, fixes up `name`, etc
|
||||
* At time of writing only the noflags version is for Android
|
||||
|
||||
```shell
|
||||
# Assumed to be in a python3 environment with requirements.txt fulfilled
|
||||
python colrv1_postproc.py colrv1/build/NotoColorEmoji-noflags.ttf \
|
||||
PATH_TO/NotoColorEmojiCompat.ttf
|
||||
python colrv1_postproc.py
|
||||
```
|
||||
|
||||
1. Add emojicompat metadata to the Android font and pass to the Android team
|
||||
* TODO write detailed instructions
|
||||
|
|
@ -1,5 +1,7 @@
|
|||
"""
|
||||
Post-nanoemoji processing of the Noto COLRv1 Emoji file.
|
||||
Post-nanoemoji processing of the Noto COLRv1 Emoji files.
|
||||
|
||||
Adds additional sequences to properly support Safari, corrects 'name', etc.
|
||||
|
||||
For now substantially based on copying from a correct bitmap build.
|
||||
"""
|
||||
|
|
@ -18,9 +20,10 @@ from pathlib import Path
|
|||
from colrv1_add_soft_light_to_flags import add_soft_light_to_flags
|
||||
|
||||
|
||||
_OUTPUT_FILE = {
|
||||
"NotoColorEmoji-noflags.ttf": "fonts/Noto-COLRv1-noflags.ttf",
|
||||
"NotoColorEmoji.ttf": "fonts/Noto-COLRv1.ttf",
|
||||
_CBDT_FILE = Path("fonts/NotoColorEmoji.ttf")
|
||||
_COLR_FILES = {
|
||||
Path("fonts/Noto-COLRv1-noflags.ttf"),
|
||||
Path("fonts/Noto-COLRv1.ttf"),
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -32,14 +35,6 @@ def _is_cbdt(font):
|
|||
return "CBDT" in font
|
||||
|
||||
|
||||
def _is_compat_font(font):
|
||||
return "meta" in font and "Emji" in font["meta"].data
|
||||
|
||||
|
||||
def _copy_emojicompat_data(colr_font, cbdt_font):
|
||||
colr_font["meta"] = cbdt_font["meta"]
|
||||
|
||||
|
||||
def _set_name(name_table, nameID):
|
||||
name_table.getName(value, nameID, 3, 1, 0x409)
|
||||
|
||||
|
|
@ -94,7 +89,7 @@ def _add_cmap_entries(colr_font, codepoint, glyph_name):
|
|||
if not _is_bmp(codepoint) and table.format == 4:
|
||||
continue
|
||||
table.cmap[codepoint] = glyph_name
|
||||
print(f"Map 0x{codepoint:04x} to {glyph_name}, format {table.format}")
|
||||
#print(f"Map 0x{codepoint:04x} to {glyph_name}, format {table.format}")
|
||||
|
||||
|
||||
FLAG_TAGS = set(range(0xE0030, 0xE0039 + 1)) | set(range(0xE0061, 0xE007A + 1))
|
||||
|
|
@ -113,7 +108,7 @@ def _map_missing_flag_tag_chars_to_empty_glyphs(colr_font):
|
|||
hmtx_table = colr_font["hmtx"]
|
||||
glyph_order_size = len(glyf_table.glyphOrder)
|
||||
for cp in tag_cps:
|
||||
print(f"Map 0x{cp:04x} to a blank glyf")
|
||||
#print(f"Map 0x{cp:04x} to a blank glyf")
|
||||
glyph_name = f"u{cp:04X}"
|
||||
assert glyph_name not in glyf_table, f"{glyph_name} already in glyf"
|
||||
assert glyph_name not in hmtx_table.metrics, f"{glyph_name} already in hmtx"
|
||||
|
|
@ -288,47 +283,39 @@ def _add_fallback_subs_for_unknown_flags(colr_font):
|
|||
font_data.delete_from_cmap(colr_font, [UNKNOWN_FLAG_PUA])
|
||||
|
||||
|
||||
def main(argv):
|
||||
if len(argv) != 3:
|
||||
raise ValueError(
|
||||
"Must have two args, a COLRv1 font and a CBDT emojicompat font"
|
||||
)
|
||||
def _font(path, check_fn, check_fail_str):
|
||||
assert path.is_file(), path
|
||||
font = ttLib.TTFont(path)
|
||||
if not check_fn(font):
|
||||
raise ValueError(path + check_fail_str)
|
||||
return font
|
||||
|
||||
colr_file = Path(argv[1])
|
||||
assert colr_file.is_file()
|
||||
assert colr_file.name in _OUTPUT_FILE
|
||||
colr_font = ttLib.TTFont(colr_file)
|
||||
if not _is_colrv1(colr_font):
|
||||
raise ValueError("First arg must be a COLRv1 font")
|
||||
|
||||
cbdt_file = Path(argv[2])
|
||||
assert cbdt_file.is_file()
|
||||
cbdt_font = ttLib.TTFont(cbdt_file)
|
||||
if not _is_cbdt(cbdt_font) or not _is_compat_font(cbdt_font):
|
||||
raise ValueError("Second arg must be a CBDT emojicompat font")
|
||||
def main(_):
|
||||
cbdt_font = _font(_CBDT_FILE, _is_cbdt, " must be a CBDT font")
|
||||
|
||||
print(f"COLR {colr_file.absolute()}")
|
||||
print(f"CBDT {cbdt_file.absolute()}")
|
||||
for colr_file in _COLR_FILES:
|
||||
colr_font = _font(colr_file, _is_colrv1, " must be a COLRv1 font")
|
||||
|
||||
_copy_emojicompat_data(colr_font, cbdt_font)
|
||||
_copy_names(colr_font, cbdt_font)
|
||||
print(f"Updating {colr_file} from {_CBDT_FILE}")
|
||||
|
||||
# CBDT build step: @$(PYTHON) $(PUA_ADDER) "$@" "$@-with-pua"
|
||||
map_pua_emoji.add_pua_cmap_to_font(colr_font)
|
||||
_copy_names(colr_font, cbdt_font)
|
||||
|
||||
_add_vs_cmap(colr_font)
|
||||
# CBDT build step: @$(PYTHON) $(PUA_ADDER) "$@" "$@-with-pua"
|
||||
map_pua_emoji.add_pua_cmap_to_font(colr_font)
|
||||
|
||||
_map_missing_flag_tag_chars_to_empty_glyphs(colr_font)
|
||||
_add_vs_cmap(colr_font)
|
||||
|
||||
add_soft_light_to_flags(colr_font)
|
||||
_map_missing_flag_tag_chars_to_empty_glyphs(colr_font)
|
||||
|
||||
_add_vertical_layout_tables(cbdt_font, colr_font)
|
||||
add_soft_light_to_flags(colr_font)
|
||||
|
||||
_add_fallback_subs_for_unknown_flags(colr_font)
|
||||
_add_vertical_layout_tables(cbdt_font, colr_font)
|
||||
|
||||
out_file = Path(_OUTPUT_FILE[colr_file.name]).absolute()
|
||||
print("Writing", out_file)
|
||||
colr_font.save(out_file)
|
||||
_add_fallback_subs_for_unknown_flags(colr_font)
|
||||
|
||||
print("Writing", colr_file)
|
||||
colr_font.save(colr_file)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
|
|
|
|||
Loading…
Reference in New Issue