private int HuffmanCoderCount1(int ch, int gr, HuffCodeTab ht, int v, int w, int x, int y)
{
int huffbits;
int p;
int signv, signw, signx, signy;
int len;
int totalBits = 0;
signv = GetSign(ref v);
signw = GetSign(ref w);
signx = GetSign(ref x);
signy = GetSign(ref y);
p = v + (w << 1) + (x << 2) + (y << 3);
huffbits = ht.Table[p];
len = ht.Hlen[p];
codedDataPH[ch, gr].Add(huffbits, len);
totalBits += len;
if (v != 0)
{
codedDataPH[ch, gr].Add(signv, 1);
totalBits += 1;
}
if (w != 0)
{
codedDataPH[ch, gr].Add(signw, 1);
totalBits += 1;
}
if (x != 0)
{
codedDataPH[ch, gr].Add(signx, 1);
totalBits += 1;
}
if (y != 0)
{
codedDataPH[ch, gr].Add(signy, 1);
totalBits += 1;
}
return(totalBits);
}
public int ReadHuffCodeTab()
{
HT = new HuffCodeTab[34];
int index = 0;
String[] strbuf;
string line, command = " ", huffdata;
int t = -1, i, j, k, nn, x, y, a = 0, n = 0;
int xl = -1, yl = -1, len;
int h;
int hsize;
hsize = 4 * 8;
do
{
line = Tables.AHuffCode[index++];
}while ((line[0] == '#') || (line[0] < ' '));
do
{
while ((line[0] == '#') || (line[0] < ' '))
{
line = Tables.AHuffCode[index++];
}
strbuf = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
command = strbuf[0];
if (command == ".end")
{
return(n);
}
HT[n] = new HuffCodeTab();
HT[n].TableName = strbuf[1];
xl = Int32.Parse(strbuf[2]);
yl = Int32.Parse(strbuf[3]);
HT[n].LinBits = Int32.Parse(strbuf[4]);
if (command != ".table")
{
throw new Exception("Неправильный номер таблицы");
}
HT[n].LinMax = (1 << HT[n].LinBits) - 1;
nn = Int32.Parse(HT[n].TableName.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)[0]);
if (nn != n)
{
throw new Exception("Неправильный номер таблицы");
}
HT[n].Xlen = xl;
HT[n].Ylen = yl;
do
{
line = Tables.AHuffCode[index++];
}while ((line[0] == '#') || (line[0] < ' '));
if (line != " ")
{
strbuf = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
command = strbuf[0];
t = Int32.Parse(strbuf[1]);
}
if (command == ".reference")
{
HT[n].Ref = t;
HT[n].Table = HT[t].Table;
HT[n].Hlen = HT[t].Hlen;
if ((xl != HT[t].Xlen) || (yl != HT[t].Ylen))
{
throw new Exception("Неправильная ссылка на таблицу");
}
do
{
line = Tables.AHuffCode[index++];
}while ((line[0] == '#') || (line[0] < ' '));
}
else
{
HT[n].Ref = -1;
HT[n].Table = new int[xl * yl];
if (HT[n].Table == null)
{
throw new Exception("Ошибка");
}
HT[n].Hlen = new char[xl * yl];;
if (HT[n].Hlen == null)
{
throw new Exception("Ошибка");
}
for (i = 0; i < xl; i++)
{
for (j = 0; j < yl; j++)
{
if (xl > 1)
{
strbuf = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
x = int.Parse(strbuf[0]);
y = int.Parse(strbuf[1]);
len = int.Parse(strbuf[2]);
huffdata = strbuf[3];
}
else
{
strbuf = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
x = int.Parse(strbuf[0]);
len = int.Parse(strbuf[1]);
huffdata = strbuf[2];
}
h = 0; k = 0;
while (k < huffdata.Length)
{
h <<= 1;
if (huffdata[k] == '1')
{
h++;
}
else if (huffdata[k] != '0')
{
throw new Exception("Ошибка битов таблицы Хаффмана");
}
k++;
}
if (k != len)
{
Console.WriteLine("Предупреждение: неправильная длина {0}, позиция: [{1}][{2}]\n", n, i, j);
}
HT[n].Table[i * xl + j] = h;
HT[n].Hlen[i * xl + j] = (char)len;
do
{
line = Tables.AHuffCode[index++];
}while ((line[0] == '#') || (line[0] < ' '));
}
}
}
n++;
a++;
} while (true);
}