public static SingleSubst read(RandomAccessFileEmulator raf, int offset) throws IOException {
SingleSubst s = null;
raf.seek(offset);
int format = raf.readUnsignedShort();
if (format == 1) {
s = new SingleSubstFormat1(raf, offset);
} else if (format == 2) {
s = new SingleSubstFormat2(raf, offset);
}
return s;
}
protected CmapFormat4(RandomAccessFileEmulator raf) throws IOException {
super(raf);
format = 4;
segCountX2 = raf.readUnsignedShort();
segCount = segCountX2 / 2;
endCode = new int[segCount];
startCode = new int[segCount];
idDelta = new int[segCount];
idRangeOffset = new int[segCount];
searchRange = raf.readUnsignedShort();
entrySelector = raf.readUnsignedShort();
rangeShift = raf.readUnsignedShort();
last = -1;
for (int i = 0; i < segCount; i++) {
endCode[i] = raf.readUnsignedShort();
if (endCode[i] > last) last = endCode[i];
}
raf.readUnsignedShort(); // reservePad
for (int i = 0; i < segCount; i++) {
startCode[i] = raf.readUnsignedShort();
if ((i == 0) || (startCode[i] < first)) first = startCode[i];
}
for (int i = 0; i < segCount; i++) {
idDelta[i] = raf.readUnsignedShort();
}
for (int i = 0; i < segCount; i++) {
idRangeOffset[i] = raf.readUnsignedShort();
}
// Whatever remains of this header belongs in glyphIdArray
int count = (length - 16 - (segCount * 8)) / 2;
glyphIdArray = new int[count];
for (int i = 0; i < count; i++) {
glyphIdArray[i] = raf.readUnsignedShort();
}
}