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tooling: improve output data of misc/tools/fontinfo.py utility
This commit is contained in:
Rasmus Andersson
parent
a6a777c5ab
commit
7ef6ee2cc6
@ -81,10 +81,6 @@ os2WeightClass = {
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}
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def num(s):
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return int(s) if s.find('.') == -1 else float(s)
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def tableNamesToDict(table, names):
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t = {}
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for name in names:
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@ -308,20 +304,62 @@ def genFontInfo(fontpath, outputType, withGlyphs=True):
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info['names'] = nameDict
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if 'head' in tt:
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NOSET = '%d: SHOULD NOT BE SET'
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head = sstructTableToDict(tt['head'], headFormat)
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if 'macStyle' in head:
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s = []
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v = head['macStyle']
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if isinstance(v, int):
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if v & 0b00000001: s.append('Bold')
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if v & 0b00000010: s.append('Italic')
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if v & 0b00000100: s.append('Underline')
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if v & 0b00001000: s.append('Outline')
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if v & 0b00010000: s.append('Shadow')
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if v & 0b00100000: s.append('Condensed')
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if v & 0b01000000: s.append('Extended')
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if isinstance(v, int): # uint16
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if v & 0b0000000000000001: s.append('0: Bold')
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if v & 0b0000000000000010: s.append('1: Italic')
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if v & 0b0000000000000100: s.append('2: Underline')
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if v & 0b0000000000001000: s.append('3: Outline')
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if v & 0b0000000000010000: s.append('4: Shadow')
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if v & 0b0000000000100000: s.append('5: Condensed')
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if v & 0b0000000001000000: s.append('6: Extended')
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# Bits 7–15: Reserved (set to 0)
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if v & 0b0000000010000000: s.append(NOSET % 7)
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if v & 0b0000000100000000: s.append(NOSET % 8)
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if v & 0b0000001000000000: s.append(NOSET % 9)
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if v & 0b0000010000000000: s.append(NOSET % 10)
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if v & 0b0000100000000000: s.append(NOSET % 11)
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if v & 0b0001000000000000: s.append(NOSET % 12)
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if v & 0b0010000000000000: s.append(NOSET % 13)
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if v & 0b0100000000000000: s.append(NOSET % 14)
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if v & 0b1000000000000000: s.append(NOSET % 15)
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head['macStyle_raw'] = head['macStyle']
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head['macStyle'] = s
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v = head['flags'] # uint16
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if isinstance(v, int):
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# https://docs.microsoft.com/en-us/typography/opentype/spec/head
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s = []
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if v & 0b0000000000000001: s.append('0: Baseline at y=0')
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if v & 0b0000000000000010: s.append('1: Left sidebearing point at x=0')
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if v & 0b0000000000000100: s.append('2: Instructions may depend on point size')
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if v & 0b0000000000001000: s.append('3: Force ppem to integer values')
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if v & 0b0000000000010000: s.append('4: Instructions may alter advance width')
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# Bit 5: This bit is not used in OpenType, and should not be set in order to ensure
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# compatible behavior on all platforms. If set, it may result in different behavior
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# for vertical layout in some platforms. (See Apple’s specification for details
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# regarding behavior in Apple platforms.)
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if v & 0b0000000000100000: s.append(NOSET % 5)
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# Bits 6–10 are not used in Opentype and should always be cleared
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if v & 0b0000000001000000: s.append(NOSET % 6)
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if v & 0b0000000010000000: s.append(NOSET % 7)
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if v & 0b0000000100000000: s.append(NOSET % 8)
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if v & 0b0000001000000000: s.append(NOSET % 9)
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if v & 0b0000010000000000: s.append(NOSET % 10)
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if v & 0b0000100000000000: s.append('11: Losslessly optimized')
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if v & 0b0001000000000000: s.append('12: Converted')
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if v & 0b0010000000000000: s.append('13: Optimized for ClearType')
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if v & 0b0100000000000000: s.append('14: Last Resort font')
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# Bit 15 is reserved
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if v & 0b1000000000000000: s.append(NOSET % 15)
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head['flags_raw'] = head['flags']
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head['flags'] = s
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info['head'] = head
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if 'hhea' in tt:
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@ -366,7 +404,58 @@ def genFontInfo(fontpath, outputType, withGlyphs=True):
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if name:
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os2['usWeightClassName'] = name
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info['os/2'] = os2
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fsType = os2.get('fsType')
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if fsType is not None:
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obj = {"raw":fsType}
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# Usage permissions: 0x000F
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perm = fsType & 0x000F
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perms = ""
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if perm == 0:
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perms = "Freely installable & embeddable"
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elif perm == 2:
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perms = "Restricted License embedding"
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elif perm == 4:
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perms = "Preview & Print embedding"
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elif perm == 8:
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perms = "Editable embedding"
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else:
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perms = "<INVALID VALUE %r>" % perm
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obj['perm'] = '0x%04X: %s' % (perm, perms)
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obj['no_subset'] = "no" if fsType & 0x0100 == 0 else "yes"
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obj['bitmap_embed_only'] = "no" if fsType & 0x0200 == 0 else "yes"
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os2['fsType'] = obj
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fsSelection = os2.get('fsSelection')
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if fsSelection is not None:
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# https://docs.microsoft.com/en-us/typography/opentype/spec/os2#fsselection
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# Bit macStyle bit Symbolic name
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# 0 1 ITALIC
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# 1 UNDERSCORE
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# 2 NEGATIVE
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# 3 OUTLINED
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# 4 STRIKEOUT
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# 5 0 BOLD
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# 6 REGULAR
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# 7 USE_TYPO_METRICS
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# 8 WWS
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# 9 OBLIQUE
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# 10-15 <reserved>
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s = []
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if fsSelection & 0b0000000000000001: s.append('0: ITALIC')
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if fsSelection & 0b0000000000000010: s.append('1: UNDERSCORE')
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if fsSelection & 0b0000000000000100: s.append('2: NEGATIVE')
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if fsSelection & 0b0000000000001000: s.append('3: OUTLINED')
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if fsSelection & 0b0000000000010000: s.append('4: STRIKEOUT')
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if fsSelection & 0b0000000000100000: s.append('5: BOLD')
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if fsSelection & 0b0000000010000000: s.append('6: REGULAR')
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if fsSelection & 0b0000000100000000: s.append('7: USE_TYPO_METRICS')
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if fsSelection & 0b0000001000000000: s.append('8: WWS')
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if fsSelection & 0b0000010000000000: s.append('9: OBLIQUE')
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os2['fsSelection_raw'] = fsSelection
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os2['fsSelection'] = s
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info['OS/2'] = os2
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if 'meta' in tt:
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meta = {}
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@ -378,6 +467,11 @@ def genFontInfo(fontpath, outputType, withGlyphs=True):
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meta[k] = 'data:;base64,' + b64encode(v)
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info['meta'] = meta
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# rest of tables
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for tname in tt.keys():
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if tname not in info:
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info[tname] = "[present but not decoded]"
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# if 'maxp' in tt:
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# table = tt['maxp']
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# _, names, _ = sstruct.getformat(maxpFormat_0_5)
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