GS2 Huffman (Variant) Decompression

        static public byte[] decompText(byte[] src)
        { //, int srcInd) { // int srcPos) {
            //return decompTextOld2(src);
            int total = 0; int total2 = 0;
            DateTime c = DateTime.Now;
            //Scan char data to generate data for faster decompression than old method.
            int asmpchar = Bits.getInt32(src, 0x38578) - 0x8000000;
            int asmptext = Bits.getInt32(src, 0x385DC) - 0x8000000;
            int chardata = Bits.getInt32(src, asmpchar) - 0x08000000;
            int charpntrs = Bits.getInt32(src, asmpchar + 4) - 0x08000000;

            //Do a pre-scan of char tables to determine array sizes.
            int maxLetter = 0;
            int cTreeSize = 0;
            int maxDepth = 0;
            for (int char1 = 0; char1 <= maxLetter; char1++)
            {
                if ((char1 & 0xFF) == 0)
                {
                    chardata = Bits.getInt32(src, asmpchar + (char1 >> 8) * 8) - 0x08000000;
                    charpntrs = Bits.getInt32(src, asmpchar + (char1 >> 8) * 8 + 4) - 0x08000000;
                }
                //if (charpntrs == asmpchar) { break; }
                if (Bits.getInt16(src, charpntrs) == 0x8000) { charpntrs += 2; continue; }
                total2 += 1;
                int charTree = (chardata + Bits.getInt16(src, charpntrs)) << 3; charpntrs += 2;
                int charSlot = charTree - 12;
                int depth = 0;
                while (true)
                {
                    while (((src[charTree >> 3] >> (charTree++ & 7)) & 1) == 0) { depth++; cTreeSize++; }
                    int letter = ((Bits.getInt16(src, charSlot >> 3) >> (charSlot & 7)) & 0xFFF); charSlot -= 12; total += 1;
                    cTreeSize++;
                    if (letter > maxLetter) { maxLetter = letter; }
                    if (depth > maxDepth) { maxDepth = depth; }
                    //if ((char1 == 0) && (letter == 7))
                    //    Console.WriteLine("0-7 depth: " + depth);
                    if (depth <= 0) break;
                    --depth;
                } //while (depth > 0);
            }
            Console.WriteLine("Total letter combos: " + total + "  \nTotal unique letters: " + total2 + "\nMax letter: " + maxLetter + "\nMax depth: " + maxDepth + "\ncTreeSize: " + cTreeSize);

            chardata = Bits.getInt32(src, asmpchar) - 0x08000000;
            charpntrs = Bits.getInt32(src, asmpchar + 4) - 0x08000000;
            int[] ctOffsets = new int[maxLetter + 1];// 0x1000];
            int[] cTree = new int[cTreeSize];// 0x10000];
            int[] nodeOffsets = new int[maxDepth]; //0x100]; //For temp use as we label leaves first, and iterate backwards.
            //int[] ctOffsets = new int[0x1000];
            //int[] cTree = new int[0x10000];
            //int[] nodeOffsets = new int[0x100]; //For temp use as we label leaves first, and iterate backwards.
            //int depth = 0;
            int pos = 0;
            for (int char1 = 0; char1 <= maxLetter; char1++)
            {
                if ((char1 & 0xFF) == 0)
                {
                    chardata = Bits.getInt32(src, asmpchar + (char1 >> 8) * 8) - 0x08000000;
                    charpntrs = Bits.getInt32(src, asmpchar + (char1 >> 8) * 8 + 4) - 0x08000000;
                }
                //if (charpntrs == asmpchar) { break; }
                if (Bits.getInt16(src, charpntrs) == 0x8000) { charpntrs += 2; continue; }
                //total2 += 1;
                int charTree = (chardata + Bits.getInt16(src, charpntrs)) << 3; charpntrs += 2;
                int charSlot = charTree - 12;
                int depth = 0;

                ctOffsets[char1] = pos;
                while (true)
                {
                    while (((src[charTree >> 3] >> (charTree++ & 7)) & 1) == 0) { nodeOffsets[depth++] = pos++; }
                    cTree[pos++] = -((Bits.getInt16(src, charSlot >> 3) >> (charSlot & 7)) & 0xFFF); charSlot -= 12; //total += 1;

                    if (depth <= 0) break;
                    cTree[nodeOffsets[--depth]] = pos;
                } //while (depth > 0);
            }

            //Console.WriteLine(DateTime.Now - c);
            //c = DateTime.Now;
            int textTree = 0, textLenAddr = 0;
            byte[] des = new byte[0x800000]; int desEntry = 0, desPos = 0xC300;
            for (int srcI = 0; srcI < 12461; srcI++)
            {
                Bits.setInt32(des, desEntry, desPos - 0xC300); desEntry += 4;
                int srcInd = srcI;
                if ((srcInd & 0xFF) == 0)
                {
                    textTree = Bits.getInt32(src, asmptext + ((srcInd >> 8) << 3)) - 0x08000000;
                    textLenAddr = Bits.getInt32(src, asmptext + ((srcInd >> 8) << 3) + 4) - 0x08000000;
                }
                else
                {
                    int cLen;
                    do
                    {
                        cLen = src[textLenAddr++];
                        textTree += cLen;
                    } while (cLen == 0xFF);
                }
                int initChar = 0, textTree2 = textTree << 3;//, bitnum = 1, val = 0;
                do
                {
                    pos = ctOffsets[initChar];
                    while (cTree[pos] > 0)
                    {
                        if ((src[textTree2 >> 3] >> (textTree2++ & 7) & 1) == 0) { pos++; }
                        else { pos = cTree[pos]; }
                        //--- if using textTree2 = textTree; ---
                        //if (bitnum >= 0x100) { bitnum = 1; textTree2++; }
                        //if ((src[textTree2] & bitnum) == 0) { pos++; }
                        //else { pos = cTree[pos]; }
                        //bitnum <<= 1;
                    }
                    initChar = -cTree[pos]; //bitChar[entry]; val >>= bitLen[entry]; bitnum -= bitLen[entry];
                    des[desPos++] = (byte)initChar;
                    if (srcI == 5468)
                        Console.Write(initChar.ToString("X2")+" ");
                } while (initChar != 0);
            }
            Console.WriteLine(DateTime.Now - c + " (Text Decompression)");
            return des;
        }