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better way

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This commit is contained in:
Bernard Xie 2023-05-31 16:46:11 -07:00
parent 8de7711e68
commit 62a4d52b47
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GPG key ID: 3C3E0036CE0F892C
1 changed files with 6 additions and 5 deletions
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11
lib/font/subsetFont.go
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@ -340,8 +340,10 @@ func (utf *utf8FontFile) generateCMAPTable(cidSymbolPairCollection map[int]int,
}
searchRange = searchRange * 2
rangeShift := segCount*2 - searchRange
cmap := []int{0, 1, 3, 1, 0, 12, 4, -1, 0, segCount * 2, searchRange, entrySelector, rangeShift}
data := []int{0, 1, 3, 1, 0, 12, 4}
cmap := []int{segCount * 2, searchRange, entrySelector, rangeShift}
for _, start := range cidArrayKeys {
endCode := start + (len(cidArray[start]) - 1)
cmap = append(cmap, endCode)
@ -367,12 +369,11 @@ func (utf *utf8FontFile) generateCMAPTable(cidSymbolPairCollection map[int]int,
cmap = append(cmap, 0)
// Calculating cmap length based off of fpdf https://github.com/Setasign/FPDF/blob/f4104a04c9a3f95c4c26a0a0531abebcc980987a/makefont/ttfparser.php#L476
// length of cmap is the total byte size of the current cmap array - the first 9 bytes
// [version, numTables, platformID, encodingID, offset, format, length language]
cmap[7] = len(cmap)*2 - 9*2
data = append(data, len(cmap)*2, 0) // [version, numTables, platformID, encodingID, offset, format], length, language
data = append(data, cmap...)
cmapstr := make([]byte, 0)
for _, cm := range cmap {
for _, cm := range data {
cmapstr = append(cmapstr, packUint16(cm)...)
}