| Index: third_party/ots/tools/ttf-checksum.py
|
| diff --git a/third_party/ots/tools/ttf-checksum.py b/third_party/ots/tools/ttf-checksum.py
|
| deleted file mode 100644
|
| index 802e3cc27ece12d9deeb7e62eb3c9842364339f1..0000000000000000000000000000000000000000
|
| --- a/third_party/ots/tools/ttf-checksum.py
|
| +++ /dev/null
|
| @@ -1,44 +0,0 @@
|
| -import struct
|
| -import sys
|
| -
|
| -def readU32(contents, offset):
|
| - wordBytes = contents[offset:offset + 4]
|
| - return struct.unpack('>I', wordBytes)[0]
|
| -
|
| -def readU16(contents, offset):
|
| - wordBytes = contents[offset:offset + 2]
|
| - return struct.unpack('>H', wordBytes)[0]
|
| -
|
| -def checkChecksum(infile):
|
| - contents = infile.read()
|
| - if len(contents) % 4:
|
| - print 'File length is not a multiple of 4'
|
| -
|
| - sum = 0
|
| - for offset in range(0, len(contents), 4):
|
| - sum += readU32(contents, offset)
|
| - while sum >= 2**32:
|
| - sum -= 2**32
|
| - print 'Sum of whole file: %x' % sum
|
| -
|
| - numTables = readU16(contents, 4)
|
| -
|
| - for offset in range(12, 12 + numTables * 16, 16):
|
| - tag = contents[offset:offset + 4]
|
| - chksum = readU32(contents, offset + 4)
|
| - toffset = readU32(contents, offset + 8)
|
| - tlength = readU32(contents, offset + 12)
|
| -
|
| - sum = 0
|
| - for offset2 in range(toffset, toffset + tlength, 4):
|
| - sum += readU32(contents, offset2)
|
| - while sum >= 2**32:
|
| - sum -= 2**32
|
| - if sum != chksum:
|
| - print 'Bad chksum: %s' % tag
|
| -
|
| -if __name__ == '__main__':
|
| - if len(sys.argv) != 2:
|
| - print 'Usage: %s <ttf filename>' % sys.argv[0]
|
| - else:
|
| - checkChecksum(file(sys.argv[1], 'r'))
|
|
|