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141
Common/TextCollector.cpp
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141
Common/TextCollector.cpp
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/*
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* Copyright (C) 2010,2011 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "TextCollector.h"
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#include "DStarDefines.h"
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#include "Utils.h"
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const unsigned int TEXT_DATA_LENGTH = 20U;
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const unsigned int SLOW_DATA_BLOCK_LENGTH = 6U;
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CTextCollector::CTextCollector() :
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m_data(NULL),
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m_buffer(NULL),
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m_slowData(SS_FIRST),
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m_has0(false),
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m_has1(false),
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m_has2(false),
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m_has3(false)
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{
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m_data = new char[TEXT_DATA_LENGTH];
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m_buffer = new unsigned char[SLOW_DATA_BLOCK_LENGTH];
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}
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CTextCollector::~CTextCollector()
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{
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delete[] m_data;
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delete[] m_buffer;
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}
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void CTextCollector::writeData(const CAMBEData& data)
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{
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if (data.isSync()) {
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sync();
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return;
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}
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unsigned char buffer[DV_FRAME_MAX_LENGTH_BYTES];
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data.getData(buffer, DV_FRAME_MAX_LENGTH_BYTES);
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switch (m_slowData) {
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case SS_FIRST:
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m_buffer[0U] = buffer[VOICE_FRAME_LENGTH_BYTES + 0U] ^ SCRAMBLER_BYTE1;
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m_buffer[1U] = buffer[VOICE_FRAME_LENGTH_BYTES + 1U] ^ SCRAMBLER_BYTE2;
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m_buffer[2U] = buffer[VOICE_FRAME_LENGTH_BYTES + 2U] ^ SCRAMBLER_BYTE3;
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m_slowData = SS_SECOND;
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return;
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case SS_SECOND:
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m_buffer[3U] = buffer[VOICE_FRAME_LENGTH_BYTES + 0U] ^ SCRAMBLER_BYTE1;
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m_buffer[4U] = buffer[VOICE_FRAME_LENGTH_BYTES + 1U] ^ SCRAMBLER_BYTE2;
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m_buffer[5U] = buffer[VOICE_FRAME_LENGTH_BYTES + 2U] ^ SCRAMBLER_BYTE3;
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m_slowData = SS_FIRST;
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break;
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}
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switch (m_buffer[0U]) {
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case SLOW_DATA_TYPE_TEXT | 0U:
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m_data[0U] = m_buffer[1U] & 0x7FU;
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m_data[1U] = m_buffer[2U] & 0x7FU;
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m_data[2U] = m_buffer[3U] & 0x7FU;
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m_data[3U] = m_buffer[4U] & 0x7FU;
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m_data[4U] = m_buffer[5U] & 0x7FU;
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m_has0 = true;
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break;
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case SLOW_DATA_TYPE_TEXT | 1U:
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m_data[5U] = m_buffer[1U] & 0x7FU;
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m_data[6U] = m_buffer[2U] & 0x7FU;
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m_data[7U] = m_buffer[3U] & 0x7FU;
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m_data[8U] = m_buffer[4U] & 0x7FU;
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m_data[9U] = m_buffer[5U] & 0x7FU;
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m_has1 = true;
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break;
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case SLOW_DATA_TYPE_TEXT | 2U:
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m_data[10U] = m_buffer[1U] & 0x7FU;
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m_data[11U] = m_buffer[2U] & 0x7FU;
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m_data[12U] = m_buffer[3U] & 0x7FU;
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m_data[13U] = m_buffer[4U] & 0x7FU;
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m_data[14U] = m_buffer[5U] & 0x7FU;
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m_has2 = true;
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break;
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case SLOW_DATA_TYPE_TEXT | 3U:
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m_data[15U] = m_buffer[1U] & 0x7FU;
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m_data[16U] = m_buffer[2U] & 0x7FU;
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m_data[17U] = m_buffer[3U] & 0x7FU;
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m_data[18U] = m_buffer[4U] & 0x7FU;
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m_data[19U] = m_buffer[5U] & 0x7FU;
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m_has3 = true;
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break;
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default:
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break;
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}
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}
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void CTextCollector::reset()
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{
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m_slowData = SS_FIRST;
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m_has0 = false;
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m_has1 = false;
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m_has2 = false;
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m_has3 = false;
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}
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void CTextCollector::sync()
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{
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m_slowData = SS_FIRST;
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}
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bool CTextCollector::hasData() const
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{
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return m_has0 && m_has1 && m_has2 && m_has3;
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}
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wxString CTextCollector::getData()
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{
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wxString text;
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if (!m_has0 || !m_has1 || !m_has2 || !m_has3)
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return text;
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m_has0 = false;
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m_has1 = false;
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m_has2 = false;
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m_has3 = false;
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return wxString(m_data, wxConvLocal, TEXT_DATA_LENGTH);
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}
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