private void genDecodeTable(WSQHelper.HuffCode[] huffcodeTable, int[] maxcode, int[] mincode, int[] valptr, int[] huffbits)
{
for (int i = 0; i <= MAX_HUFFBITS; i++) {
maxcode[i] = 0;
mincode[i] = 0;
valptr[i] = 0;
}
int i2 = 0;
for (int i = 1; i <= MAX_HUFFBITS; i++) {
if (huffbits[i - 1] == 0) {
maxcode[i] = -1;
continue;
}
valptr[i] = i2;
mincode[i] = huffcodeTable[i2].code;
i2 = i2 + huffbits[i - 1] - 1;
maxcode[i] = huffcodeTable[i2].code;
i2++;
}
}
private void buildHuffcodes(WSQHelper.HuffCode[] huffcodeTable)
{
short tempCode = 0; /*used to construct code word*/
int pointer = 0; /*pointer to code word information*/
int tempSize = huffcodeTable[0].size;
if (huffcodeTable[pointer].size == 0) {
return;
}
do {
do {
huffcodeTable[pointer].code = tempCode;
tempCode++;
pointer++;
} while (huffcodeTable[pointer].size == tempSize);
if (huffcodeTable[pointer].size == 0)
return;
do {
tempCode <<= 1;
tempSize++;
} while (huffcodeTable[pointer].size != tempSize);
} while (huffcodeTable[pointer].size == tempSize);
}