UPM 2048 and opsz axis (#462)

- UPM is adjusted to 2048
- Additional opsz VF axis (multi master) added which will eventually replace the separate Display family
- New tooling that uses fontmake instead of Inter's own fontbuild toolchain. (The old toolchain is still supported, i.e. `make -f Makefile_v1.make ...`)

misc/tools/postprocess-vf.py

@@ -0,0 +1,115 @@
+import sys, os, os.path, argparse, re
+from fontTools.ttLib import TTFont
+
+# Adoptation of fonttools/blob/master/Snippets/rename-fonts.py
+
+WINDOWS_ENGLISH_IDS = 3, 1, 0x409
+MAC_ROMAN_IDS = 1, 0, 0
+
+LEGACY_FAMILY       = 1
+SUBFAMILY_NAME      = 2
+TRUETYPE_UNIQUE_ID  = 3
+FULL_NAME           = 4
+POSTSCRIPT_NAME     = 6
+PREFERRED_FAMILY    = 16
+TYPO_SUBFAMILY_NAME = 17
+WWS_FAMILY          = 21
+
+
+FAMILY_RELATED_IDS = set([
+  LEGACY_FAMILY,
+  TRUETYPE_UNIQUE_ID,
+  FULL_NAME,
+  POSTSCRIPT_NAME,
+  PREFERRED_FAMILY,
+  WWS_FAMILY,
+])
+
+whitespace_re = re.compile(r'\s+')
+
+
+def removeWhitespace(s):
+  return whitespace_re.sub("", s)
+
+
+def set_full_name(font, fullName, fullNamePs):
+  nameTable = font["name"]
+  nameTable.setName(fullName, FULL_NAME, 1, 0, 0)     # mac
+  nameTable.setName(fullName, FULL_NAME, 3, 1, 0x409) # windows
+  nameTable.setName(fullNamePs, POSTSCRIPT_NAME, 1, 0, 0)     # mac
+  nameTable.setName(fullNamePs, POSTSCRIPT_NAME, 3, 1, 0x409) # windows
+
+
+def get_family_name(font):
+  nameTable = font["name"]
+  r = None
+  for plat_id, enc_id, lang_id in (WINDOWS_ENGLISH_IDS, MAC_ROMAN_IDS):
+    for name_id in (PREFERRED_FAMILY, LEGACY_FAMILY):
+      r = nameTable.getName(nameID=name_id, platformID=plat_id, platEncID=enc_id, langID=lang_id)
+      if r is not None:
+        break
+    if r is not None:
+      break
+  if not r:
+    raise ValueError("family name not found")
+  return r.toUnicode()
+
+
+def fix_fullname(font):
+  fullName = get_family_name(font)
+  fullNamePs = removeWhitespace(fullName)
+  set_full_name(font, fullName, fullNamePs)
+  return fullName
+
+
+def clear_subfamily_name(font):
+  nameTable = font["name"]
+  rmrecs = []
+  for rec in nameTable.names:
+    if rec.nameID == SUBFAMILY_NAME or rec.nameID == TYPO_SUBFAMILY_NAME:
+      rmrecs.append(rec)
+  for rec in rmrecs:
+    nameTable.removeNames(rec.nameID, rec.platformID, rec.platEncID, rec.langID)
+
+
+def fix_unique_id(font, fullName):
+  fontIdRecs = []
+  newId = ''
+  nameTable = font["name"]
+  for rec in nameTable.names:
+    if rec.nameID == TRUETYPE_UNIQUE_ID:
+      if newId == '':
+        oldId = rec.toUnicode()
+        newId = removeWhitespace(fullName)
+        p = oldId.find(':')
+        if p > -1:
+          newId += oldId[p:]
+      fontIdRecs.append(rec)
+  for rec in fontIdRecs:
+    nameTable.setName(newId, rec.nameID, rec.platformID, rec.platEncID, rec.langID)
+
+
+def main():
+  argparser = argparse.ArgumentParser(description='Fix names in variable font')
+  a = lambda *args, **kwargs: argparser.add_argument(*args, **kwargs)
+  a('-o', '--output', metavar='<file>',
+    help='Output font file. Defaults to input file (overwrite)')
+  a('input', metavar='<file>',
+    help='Input font file')
+  args = argparser.parse_args()
+
+  infile = args.input
+  outfile = args.output or infile
+
+  font = TTFont(infile, recalcBBoxes=False, recalcTimestamp=False)
+
+  fullName = fix_fullname(font)
+  fix_unique_id(font, fullName)
+  clear_subfamily_name(font)
+
+  font.save(outfile)
+  font.close()
+
+
+if __name__ == '__main__':
+  main()