private void FillBuffer()
{
m_current_block_length = m_view.Read(m_current_block_position, m_current_block, 0, (uint)BlockLength);
for (int offset = 0; offset < m_current_block_length; offset += 0x10)
{
m_dec.DecryptBlock(m_current_block_position + offset, m_current_block, offset);
}
}
private static int ReadEncrypted(ArcView.Frame view, IMalieDecryptor dec, long offset, byte[] buffer, int index, int length)
{
int offset_pad = (int)offset & 0xF;
int aligned_len = (offset_pad + length + 0xF) & ~0xF;
byte[] aligned_buf;
int block = 0;
if (aligned_len == length)
{
aligned_buf = buffer;
block = index;
}
else
{
aligned_buf = new byte[aligned_len];
}
int read = view.Read(offset - offset_pad, aligned_buf, block, (uint)aligned_len);
if (read < offset_pad)
{
return(0);
}
for (int block_count = aligned_len / 0x10; block_count > 0; --block_count)
{
dec.DecryptBlock(offset, aligned_buf, block);
block += 0x10;
offset += 0x10;
}
if (aligned_buf != buffer)
{
Buffer.BlockCopy(aligned_buf, offset_pad, buffer, index, length);
}
return(Math.Min(length, read - offset_pad));
}
