KB8PMY
/
DStarRepeater
mirror of https://github.com/g4klx/DStarRepeater.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '2cde6fb014'
${ noResults }
DStarRepeater/Common/DStarScrambler.cpp

140 lines
7.5 KiB
Raw Blame History

/*
* Copyright (C) 2009 by Jonathan Naylor, G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "DStarScrambler.h"
#include <wx/wx.h>
static const bool SCRAMBLER_TABLE_BITS[] = {
false, false, false, false, true, true, true, false, true, true, true, true, false, false, true, false,
true, true, false, false, true, false, false, true, false, false, false, false, false, false, true, false,
false, false, true, false, false, true, true, false, false, false, true, false, true, true, true, false,
true, false, true, true, false, true, true, false, false, false, false, false, true, true, false, false,
true, true, false, true, false, true, false, false, true, true, true, false, false, true, true, true,
true, false, true, true, false, true, false, false, false, false, true, false, true, false, true, false,
true, true, true, true, true, false, true, false, false, true, false, true, false, false, false, true,
true, false, true, true, true, false, false, false, true, true, true, true, true, true, true, false,
false, false, false, true, true, true, false, true, true, true, true, false, false, true, false, true,
true, false, false, true, false, false, true, false, false, false, false, false, false, true, false, false,
false, true, false, false, true, true, false, false, false, true, false, true, true, true, false, true,
false, true, true, false, true, true, false, false, false, false, false, true, true, false, false, true,
true, false, true, false, true, false, false, true, true, true, false, false, true, true, true, true,
false, true, true, false, true, false, false, false, false, true, false, true, false, true, false, true,
true, true, true, true, false, true, false, false, true, false, true, false, false, false, true, true,
false, true, true, true, false, false, false, true, true, true, true, true, true, true, false, false,
false, false, true, true, true, false, true, true, true, true, false, false, true, false, true, true,
false, false, true, false, false, true, false, false, false, false, false, false, true, false, false, false,
true, false, false, true, true, false, false, false, true, false, true, true, true, false, true, false,
true, true, false, true, true, false, false, false, false, false, true, true, false, false, true, true,
false, true, false, true, false, false, true, true, true, false, false, true, true, true, true, false,
true, true, false, true, false, false, false, false, true, false, true, false, true, false, true, true,
true, true, true, false, true, false, false, true, false, true, false, false, false, true, true, false,
true, true, true, false, false, false, true, true, true, true, true, true, true, false, false, false,
false, true, true, true, false, true, true, true, true, false, false, true, false, true, true, false,
false, true, false, false, true, false, false, false, false, false, false, true, false, false, false, true,
false, false, true, true, false, false, false, true, false, true, true, true, false, true, false, true,
true, false, true, true, false, false, false, false, false, true, true, false, false, true, true, false,
true, false, true, false, false, true, true, true, false, false, true, true, true, true, false, true,
true, false, true, false, false, false, false, true, false, true, false, true, false, true, true, true,
true, true, false, true, false, false, true, false, true, false, false, false, true, true, false, true,
true, true, false, false, false, true, true, true, true, true, true, true, false, false, false, false,
true, true, true, false, true, true, true, true, false, false, true, false, true, true, false, false,
true, false, false, true, false, false, false, false, false, false, true, false, false, false, true, false,
false, true, true, false, false, false, true, false, true, true, true, false, true, false, true, true,
false, true, true, false, false, false, false, false, true, true, false, false, true, true, false, true,
false, true, false, false, true, true, true, false, false, true, true, true, true, false, true, true,
false, true, false, false, false, false, true, false, true, false, true, false, true, true, true, true,
true, false, true, false, false, true, false, true, false, false, false, true, true, false, true, true,
true, false, false, false, true, true, true, true, true, true, true, false, false, false, false, true,
true, true, false, true, true, true, true, false, false, true, false, true, true, false, false, true,
false, false, true, false, false, false, false, false, false, true, false, false, false, true, false, false,
true, true, false, false, false, true, false, true, true, true, false, true, false, true, true, false,
true, true, false, false, false, false, false, true, true, false, false, true, true, false, true, false,
true, false, false, true, true, true, false, false, true, true, true, true, false, true, true, false};
static const unsigned int SCRAMBLER_TABLE_BITS_LENGTH = 720U;
static const unsigned char SCRAMBLER_TABLE_BYTES[] = {
0x0e, 0xf2, 0xc9, 0x02, 0x26, 0x2e, 0xb6, 0x0c, 0xd4, 0xe7, 0xb4, 0x2a, 0xfa, 0x51, 0xb8, 0xfe,
0x1d, 0xe5, 0x92, 0x04, 0x4c, 0x5d, 0x6c, 0x19, 0xa9, 0xcf, 0x68, 0x55, 0xf4, 0xa3, 0x71, 0xfc,
0x3b, 0xcb, 0x24, 0x08, 0x98, 0xba, 0xd8, 0x33, 0x53, 0x9e, 0xd0, 0xab, 0xe9, 0x46, 0xe3, 0xf8,
0x77, 0x96, 0x48, 0x11, 0x31, 0x75, 0xb0, 0x66, 0xa7, 0x3d, 0xa1, 0x57, 0xd2, 0x8d, 0xc7, 0xf0,
0xef, 0x2c, 0x90, 0x22, 0x62, 0xeb, 0x60, 0xcd, 0x4e, 0x7b, 0x42, 0xaf, 0xa5, 0x1b, 0x8f, 0xe1,
0xde, 0x59, 0x20, 0x44, 0xc5, 0xd6, 0xc1, 0x9a, 0x9c, 0xf6};
static const unsigned int SCRAMBLER_TABLE_BYTES_LENGTH = 90U;
CDStarScrambler::CDStarScrambler() :
m_count(0U)
{
}
CDStarScrambler::~CDStarScrambler()
{
}
void CDStarScrambler::process(bool* inOut, unsigned int length)
{
wxASSERT(inOut != 0);
for (unsigned int i = 0U; i < length; i++) {
inOut[i] ^= SCRAMBLER_TABLE_BITS[m_count++];
if (m_count >= SCRAMBLER_TABLE_BITS_LENGTH)
m_count = 0U;
}
}
void CDStarScrambler::process(const bool* in, bool* out, unsigned int length)
{
wxASSERT(in != 0);
wxASSERT(out != 0);
for (unsigned int i = 0U; i < length; i++) {
out[i] = in[i] ^ SCRAMBLER_TABLE_BITS[m_count++];
if (m_count >= SCRAMBLER_TABLE_BITS_LENGTH)
m_count = 0U;
}
}
void CDStarScrambler::process(unsigned char* inOut, unsigned int length)
{
wxASSERT(inOut != 0);
for (unsigned int i = 0U; i < length; i++) {
inOut[i] ^= SCRAMBLER_TABLE_BYTES[m_count++];
if (m_count >= SCRAMBLER_TABLE_BYTES_LENGTH)
m_count = 0U;
}
}
void CDStarScrambler::process(const unsigned char* in, unsigned char* out, unsigned int length)
{
wxASSERT(in != 0);
wxASSERT(out != 0);
for (unsigned int i = 0U; i < length; i++) {
out[i] = in[i] ^ SCRAMBLER_TABLE_BYTES[m_count++];
if (m_count >= SCRAMBLER_TABLE_BYTES_LENGTH)
m_count = 0U;
}
}
void CDStarScrambler::reset()
{
m_count = 0U;
}
Reference in new issue View Git Blame Copy Permalink

Powered by TurnKey Linux.