public void RebuildHuffmanMap()
{
this.huffman_map = new Dictionary <uint, huffman_value_st>();
uint tree_data_base = Program.ROM.p32p(Program.ROM.RomInfo.mask_point_base_pointer());
this.tree_base = Program.ROM.p32(Program.ROM.RomInfo.mask_pointer());
make_huffman_map(tree_data_base, 1);
if (!this.huffman_map.ContainsKey(0))
{//終端文字列が辞書に存在しない.
throw new FETextDecode.FETextException(R._("text decoder table broken 0x{0}.this is broken rom.", U.ToHexString(tree_base)));
}
//EOF
huffman_value_st huffman_value = this.huffman_map[0];
if (Program.ROM.RomInfo.is_multibyte())
{
if (huffman_value.bitcount < 8)
{
huffman_value.bitcount = 8;
this.huffman_map[0] = huffman_value;
}
}
else
{
if (huffman_value.bitcount < 7)
{
huffman_value.bitcount = 7;
this.huffman_map[0] = huffman_value;
}
}
}
void make_huffman_map(uint tree_data, uint bit_deps)
{
if (!U.isSafetyOffset(this.tree_base))
{
this.huffman_map[0] = new huffman_value_st();
R.Error("make_huffman_map: Can not Load tree_base:{0}", U.ToHexString(this.tree_base));
Debug.Assert(false);
return;
}
if (!U.isSafetyOffset(tree_data))
{
this.huffman_map[0] = new huffman_value_st();
R.Error("make_huffman_map: Can not Load tree_data:{0}", U.ToHexString(tree_data));
Debug.Assert(false);
return;
}
for (uint i = 0; i < 2; i++)
{
uint tree_ = (uint)Program.ROM.u16(tree_data + (i * 2));
uint tree_next_data = this.tree_base + (tree_ * 4);
uint bit = (bit_deps << 1) + i;
uint src_data = Program.ROM.u32(tree_next_data);
if ((src_data & 0x80000000) > 0)
{
uint code = src_data & 0xFFFF;
byte bitcount = (byte)countBitMinus1(bit);
huffman_value_st huffman_value = new huffman_value_st();
huffman_value.bit = revBit(bit, (int)bitcount);
huffman_value.bitcount = bitcount;
this.huffman_map[code] = huffman_value;
}
else
{
make_huffman_map(tree_next_data, bit);
}
}
}
