private int decodeNumber(Decode RD)
{
return UnpackUtility.decodeNumber(this,RD);
}
internal static int decodeNumber(this BitInput input, Decode dec)
{
int bits;
long bitField = input.GetBits() & 0xfffe;
// if (bitField < dec.getDecodeLen()[8]) {
// if (bitField < dec.getDecodeLen()[4]) {
// if (bitField < dec.getDecodeLen()[2]) {
// if (bitField < dec.getDecodeLen()[1]) {
// bits = 1;
// } else {
// bits = 2;
// }
// } else {
// if (bitField < dec.getDecodeLen()[3]) {
// bits = 3;
// } else {
// bits = 4;
// }
// }
// } else {
// if (bitField < dec.getDecodeLen()[6]) {
// if (bitField < dec.getDecodeLen()[5])
// bits = 5;
// else
// bits = 6;
// } else {
// if (bitField < dec.getDecodeLen()[7]) {
// bits = 7;
// } else {
// bits = 8;
// }
// }
// }
// } else {
// if (bitField < dec.getDecodeLen()[12]) {
// if (bitField < dec.getDecodeLen()[10])
// if (bitField < dec.getDecodeLen()[9])
// bits = 9;
// else
// bits = 10;
// else if (bitField < dec.getDecodeLen()[11])
// bits = 11;
// else
// bits = 12;
// } else {
// if (bitField < dec.getDecodeLen()[14]) {
// if (bitField < dec.getDecodeLen()[13]) {
// bits = 13;
// } else {
// bits = 14;
// }
// } else {
// bits = 15;
// }
// }
// }
// addbits(bits);
// int N = dec.getDecodePos()[bits]
// + (((int) bitField - dec.getDecodeLen()[bits - 1]) >>> (16 - bits));
// if (N >= dec.getMaxNum()) {
// N = 0;
// }
// return (dec.getDecodeNum()[N]);
int[] decodeLen = dec.DecodeLen;
if (bitField < decodeLen[8])
{
if (bitField < decodeLen[4])
{
if (bitField < decodeLen[2])
{
if (bitField < decodeLen[1])
{
bits = 1;
}
else
{
bits = 2;
}
}
else
{
if (bitField < decodeLen[3])
{
bits = 3;
}
else
{
bits = 4;
}
}
}
else
{
if (bitField < decodeLen[6])
{
if (bitField < decodeLen[5])
bits = 5;
else
bits = 6;
}
else
{
if (bitField < decodeLen[7])
{
bits = 7;
}
else
{
bits = 8;
}
}
}
}
else
{
if (bitField < decodeLen[12])
{
if (bitField < decodeLen[10])
if (bitField < decodeLen[9])
bits = 9;
else
bits = 10;
else if (bitField < decodeLen[11])
bits = 11;
else
bits = 12;
}
else
{
if (bitField < decodeLen[14])
{
if (bitField < decodeLen[13])
{
bits = 13;
}
else
{
bits = 14;
}
}
else
{
bits = 15;
}
}
}
input.AddBits(bits);
int N = dec.DecodePos[bits] + (Utility.URShift(((int)bitField - decodeLen[bits - 1]), (16 - bits)));
if (N >= dec.MaxNum)
{
N = 0;
}
return (dec.DecodeNum[N]);
}
internal static int decodeNumber(BitInput input, Decode dec)
{
int num;
long num2 = input.GetBits() & 0xfffe;
int[] decodeLen = dec.DecodeLen;
if (num2 < decodeLen[8])
{
if (num2 < decodeLen[4])
{
if (num2 < decodeLen[2])
{
if (num2 < decodeLen[1])
{
num = 1;
}
else
{
num = 2;
}
}
else if (num2 < decodeLen[3])
{
num = 3;
}
else
{
num = 4;
}
}
else if (num2 < decodeLen[6])
{
if (num2 < decodeLen[5])
{
num = 5;
}
else
{
num = 6;
}
}
else if (num2 < decodeLen[7])
{
num = 7;
}
else
{
num = 8;
}
}
else if (num2 < decodeLen[12])
{
if (num2 < decodeLen[10])
{
if (num2 < decodeLen[9])
{
num = 9;
}
else
{
num = 10;
}
}
else if (num2 < decodeLen[11])
{
num = 11;
}
else
{
num = 12;
}
}
else if (num2 < decodeLen[14])
{
if (num2 < decodeLen[13])
{
num = 13;
}
else
{
num = 14;
}
}
else
{
num = 15;
}
input.AddBits(num);
int index = dec.DecodePos[num] + Utility.URShift((int) (((int) num2) - decodeLen[num - 1]), (int) (0x10 - num));
if (index >= dec.MaxNum)
{
index = 0;
}
return dec.DecodeNum[index];
}
internal static void makeDecodeTables(byte[] lenTab, int offset, Decode dec, int size)
{
int[] lenCount = new int[16];
int[] tmpPos = new int[16];
int i;
long M, N;
Utility.Fill(lenCount, 0); // memset(LenCount,0,sizeof(LenCount));
Utility.Fill(dec.DecodeNum, 0); // memset(Dec->DecodeNum,0,Size*sizeof(*Dec->DecodeNum));
for (i = 0; i < size; i++)
{
lenCount[(int)(lenTab[offset + i] & 0xF)]++;
}
lenCount[0] = 0;
for (tmpPos[0] = 0, dec.DecodePos[0] = 0, dec.DecodeLen[0] = 0, N = 0, i = 1; i < 16; i++)
{
N = 2 * (N + lenCount[i]);
M = N << (15 - i);
if (M > 0xFFFF)
{
M = 0xFFFF;
}
dec.DecodeLen[i] = (int)M;
tmpPos[i] = dec.DecodePos[i] = dec.DecodePos[i - 1] + lenCount[i - 1];
}
for (i = 0; i < size; i++)
{
if (lenTab[offset + i] != 0)
{
dec.DecodeNum[tmpPos[lenTab[offset + i] & 0xF]++] = i;
}
}
dec.MaxNum = size;
}
internal static void makeDecodeTables(byte[] lenTab, int offset, Decode dec, int size)
{
int num;
int[] array = new int[0x10];
int[] numArray2 = new int[0x10];
Utility.Fill<int>(array, 0);
Utility.Fill<int>(dec.DecodeNum, 0);
for (num = 0; num < size; num++)
{
array[lenTab[offset + num] & 15]++;
}
array[0] = 0;
numArray2[0] = 0;
dec.DecodePos[0] = 0;
dec.DecodeLen[0] = 0;
long num3 = 0L;
for (num = 1; num < 0x10; num++)
{
num3 = 2L * (num3 + array[num]);
long num2 = num3 << (15 - num);
if (num2 > 0xffffL)
{
num2 = 0xffffL;
}
dec.DecodeLen[num] = (int) num2;
numArray2[num] = dec.DecodePos[num] = dec.DecodePos[num - 1] + array[num - 1];
}
for (num = 0; num < size; num++)
{
if (lenTab[offset + num] != 0)
{
dec.DecodeNum[numArray2[lenTab[offset + num] & 15]++] = num;
}
}
dec.MaxNum = size;
}
