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Port cmap table from numpy to array module

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This commit is contained in:
Behdad Esfahbod 2013-08-16 12:56:08 -04:00
parent fd647bf353
commit 8da8242d61
1 changed files with 9 additions and 10 deletions
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19
Lib/fontTools/ttLib/tables/_c_m_a_p.py
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@ -2,7 +2,6 @@ import sys
import DefaultTable
import struct
import array
import numpy
import operator
from fontTools import ttLib
from fontTools.misc.textTools import safeEval, readHex
@ -197,7 +196,7 @@ class cmap_format_0(CmapSubtable):
assert charCodes == range(256)
valueList = map(ttFont.getGlyphID, valueList)
glyphIdArray = numpy.array(valueList, numpy.int8)
glyphIdArray = array.array("B", valueList)
data = struct.pack(">HHH", 0, 262, self.language) + glyphIdArray.tostring()
assert len(data) == 262
return data
@ -799,13 +798,13 @@ class cmap_format_4(CmapSubtable):
entrySelector = maxExponent
rangeShift = 2 * segCount - searchRange
charCodeArray = numpy.array( endCode + [0] + startCode, numpy.uint16)
idDeltaeArray = numpy.array(idDelta, numpy.int16)
restArray = numpy.array(idRangeOffset + glyphIndexArray, numpy.uint16)
charCodeArray = array.array("H", endCode + [0] + startCode)
idDeltaeArray = array.array("h", idDelta)
restArray = array.array("H", idRangeOffset + glyphIndexArray)
if sys.byteorder <> "big":
charCodeArray = charCodeArray.byteswap()
idDeltaeArray = idDeltaeArray.byteswap()
restArray = restArray.byteswap()
charCodeArray.byteswap()
idDeltaeArray.byteswap()
restArray.byteswap()
data = charCodeArray.tostring() + idDeltaeArray.tostring() + restArray.tostring()
length = struct.calcsize(cmap_format_4_format) + len(data)
@ -873,9 +872,9 @@ class cmap_format_6(CmapSubtable):
firstCode = codes[0]
valueList = map(operator.getitem, [cmap]*lenCodes, codes)
valueList = map(ttFont.getGlyphID, valueList)
glyphIndexArray = numpy.array(valueList, numpy.uint16)
glyphIndexArray = array.array("H", valueList)
if sys.byteorder <> "big":
glyphIndexArray = glyphIndexArray.byteswap()
glyphIndexArray.byteswap()
data = glyphIndexArray.tostring()
else:
data = ""