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[varLib] Minor optimizations in maxp and TThinting

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This commit is contained in:
Behdad Esfahbod 2021-04-13 14:53:08 -06:00
parent f387620572
commit f80e19da35
1 changed files with 11 additions and 15 deletions
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26
Lib/fontTools/varLib/__init__.py
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@ -303,9 +303,10 @@ def _remove_TTHinting(font):
for tag in ("cvar", "cvt ", "fpgm", "prep"):
if tag in font:
del font[tag]
maxp = font['maxp']
for attr in ("maxTwilightPoints", "maxStorage", "maxFunctionDefs", "maxInstructionDefs", "maxStackElements", "maxSizeOfInstructions"):
setattr(font["maxp"], attr, 0)
font["maxp"].maxZones = 1
setattr(maxp, attr, 0)
maxp.maxZones = 1
font["glyf"].removeHinting()
# TODO: Modify gasp table to deactivate gridfitting for all ranges?
@ -320,12 +321,9 @@ def _merge_TTHinting(font, masterModel, master_ttfs):
for tag in ("fpgm", "prep"):
all_pgms = [m[tag].program for m in master_ttfs if tag in m]
if len(all_pgms) == 0:
if not all_pgms:
continue
if tag in font:
font_pgm = font[tag].program
else:
font_pgm = Program()
font_pgm = font[tag].program if tag in font else None
if any(pgm != font_pgm for pgm in all_pgms):
log.warning("Masters have incompatible %s tables, hinting is discarded." % tag)
_remove_TTHinting(font)
@ -333,20 +331,18 @@ def _merge_TTHinting(font, masterModel, master_ttfs):
# glyf table
font_glyf = font['glyf']
master_glyfs = [m['glyf'] for m in master_ttfs]
for name, glyph in font["glyf"].glyphs.items():
for name, glyph in font_glyf.glyphs.items():
all_pgms = [
glyf[name].program
getattr(glyf[name], 'program', None)
for glyf in master_glyfs
if name in glyf and hasattr(glyf[name], "program")
if name in glyf
]
if not any(all_pgms):
continue
glyph.expand(font["glyf"])
if hasattr(glyph, "program"):
font_pgm = glyph.program
else:
font_pgm = Program()
glyph.expand(font_glyf)
font_pgm = getattr(glyph, 'program', None)
if any(pgm != font_pgm for pgm in all_pgms if pgm):
log.warning("Masters have incompatible glyph programs in glyph '%s', hinting is discarded." % name)
# TODO Only drop hinting from this glyph.