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150 lines
3.7 KiB
150 lines
3.7 KiB
/*
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* Copyright (C) 2013 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 "AnnouncementUnit.h"
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#include <wx/filename.h>
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#include <wx/file.h>
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const wxString GLOBAL_FILE_NAME = wxT("Announce");
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CAnnouncementUnit::CAnnouncementUnit(IAnnouncementCallback* handler, const wxString& callsign) :
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m_handler(handler),
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m_localFileName(),
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m_reader(),
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m_writer(),
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m_time(),
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m_out(0U),
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m_sending(false)
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{
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wxASSERT(handler != NULL);
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m_localFileName.Printf(wxT("Announce %s"), callsign.c_str());
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#if !defined(__WINDOWS__)
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m_localFileName.Replace(wxT(" "), wxT("_"));
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#endif
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m_writer.setDirectory(wxFileName::GetHomeDir());
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}
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CAnnouncementUnit::~CAnnouncementUnit()
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{
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}
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bool CAnnouncementUnit::writeHeader(const CHeaderData& header)
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{
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return m_writer.open(m_localFileName, header);
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}
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bool CAnnouncementUnit::writeData(const unsigned char* data, unsigned int length, bool end)
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{
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bool ret = m_writer.write(data, length);
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if (!ret)
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return false;
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if (end)
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m_writer.close();
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return true;
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}
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void CAnnouncementUnit::deleteAnnouncement()
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{
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wxFileName fileName(wxFileName::GetHomeDir(), m_localFileName, wxT("dvtool"));
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if (wxFile::Exists(fileName.GetFullPath()))
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::wxRemoveFile(fileName.GetFullPath());
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}
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void CAnnouncementUnit::startAnnouncement()
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{
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wxFileName fileName1(wxFileName::GetHomeDir(), m_localFileName, wxT("dvtool"));
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wxFileName fileName2(wxFileName::GetHomeDir(), GLOBAL_FILE_NAME, wxT("dvtool"));
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if (wxFile::Exists(fileName1.GetFullPath())) {
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bool ret = m_reader.open(fileName1.GetFullPath());
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if (!ret)
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return;
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} else if (wxFile::Exists(fileName2.GetFullPath())) {
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bool ret = m_reader.open(fileName2.GetFullPath());
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if (!ret)
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return;
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} else {
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return;
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}
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DVTFR_TYPE type = m_reader.read();
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if (type != DVTFR_HEADER) {
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wxLogError(wxT("Invalid header element in the file - %d"), int(type));
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m_reader.close();
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return;
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}
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CHeaderData* header = m_reader.readHeader();
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if (header == NULL) {
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wxLogError(wxT("NULL header element in the file"));
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m_reader.close();
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return;
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}
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// Remove the repeater bit
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header->setFlag1(header->getFlag1() & ~REPEATER_MASK);
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m_handler->transmitAnnouncementHeader(header);
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m_time.Start();
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m_out = 0U;
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m_sending = true;
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}
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void CAnnouncementUnit::clock()
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{
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if (!m_sending)
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return;
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unsigned int needed = m_time.Time() / DSTAR_FRAME_TIME_MS;
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while (m_out < needed) {
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DVTFR_TYPE type = m_reader.read();
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if (type != DVTFR_DATA) {
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wxLogError(wxT("Invalid data element in the file - %d"), int(type));
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m_handler->transmitAnnouncementData(END_PATTERN_BYTES, DV_FRAME_LENGTH_BYTES, true);
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m_reader.close();
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m_sending = false;
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m_out = 0U;
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return;
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}
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unsigned char data[DV_FRAME_MAX_LENGTH_BYTES];
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bool end;
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m_reader.readData(data, DV_FRAME_MAX_LENGTH_BYTES, end);
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m_handler->transmitAnnouncementData(data, DV_FRAME_LENGTH_BYTES, false);
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m_out++;
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if (end) {
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m_handler->transmitAnnouncementData(END_PATTERN_BYTES, DV_FRAME_LENGTH_BYTES, true);
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m_reader.close();
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m_sending = false;
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m_out = 0U;
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return;
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}
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}
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}
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