/**
* @brief KmlExport::preparseLogFile Ensures that the logfile has data to export
* @return Returns true if the logfile has data, false otherwise
*/
bool KmlExport::preparseLogFile()
{
//Read all log timestamps into array
timestampBuffer.clear(); //Save beginning of log for later use
timestampPos.clear();
quint64 logFileStartIdx = logFile.pos();
quint32 lastTimeStamp = 0;
while (!logFile.atEnd()){
qint64 dataSize;
//Get time stamp position
timestampPos.append(logFile.pos());
//Read timestamp and logfile packet size
logFile.read((char *) &lastTimeStamp, sizeof(lastTimeStamp));
logFile.read((char *) &dataSize, sizeof(dataSize));
//Check if dataSize sync bytes are correct.
//TODO: LIKELY AS NOT, THIS WILL FAIL TO RESYNC BECAUSE THERE IS TOO LITTLE INFORMATION IN THE STRING OF SIX 0x00
if ((dataSize & 0xFFFFFFFFFFFF0000)!=0){
qDebug() << "Wrong sync byte. At file location 0x" << QString("%1").arg(logFile.pos(),0,16) << "Got 0x" << QString("%1").arg(dataSize & 0xFFFFFFFFFFFF0000,0,16) << ", but expected 0x""00"".";
logFile.seek(timestampPos.last()+1);
timestampPos.pop_back();
continue;
}
//Check if timestamps are sequential.
if (!timestampBuffer.isEmpty() && lastTimeStamp < timestampBuffer.last()){
QMessageBox msgBox;
msgBox.setText("Corrupted file.");
msgBox.setInformativeText("Timestamps are not sequential. Playback may have unexpected behavior"); //<--TODO: add hyperlink to webpage with better description.
msgBox.exec();
qDebug() << "Timestamp: " << timestampBuffer.last() << " " << lastTimeStamp;
}
timestampBuffer.append(lastTimeStamp);
logFile.seek(timestampPos.last()+sizeof(lastTimeStamp)+sizeof(dataSize)+dataSize);
}
//Check if any timestamps were successfully read
if (timestampBuffer.size() == 0){
QMessageBox msgBox;
msgBox.setText("Empty logfile.");
msgBox.setInformativeText("No log data can be found.");
msgBox.exec();
stopExport();
return false;
}
//Reset to log beginning, including the timestamp.
logFile.seek(logFileStartIdx);
return true;
}
/**
* @brief KmlExport::parseLogFile Parses logfile and exports results to KML file
*/
void KmlExport::parseLogFile()
{
qint64 packetSize;
quint32 timeStampIdx;
//Read packets
while (!logFile.atEnd())
{
if(logFile.bytesAvailable() < 4) {
break;
}
//Read timestamp and logfile packet size
logFile.read((char *) &timeStamp, sizeof(timeStamp));
logFile.read((char *) &packetSize, sizeof(packetSize));
if (packetSize<1 || packetSize>(1024*1024)) {
qDebug() << "Error: Logfile corrupted! Unlikely packet size: " << packetSize << "\n";
QMessageBox::critical(new QWidget(),"Corrupted file", "Incorrect packet size. Stopping export. Data up to this point will be saved.");
break;
}
if(logFile.bytesAvailable() < packetSize) {
break;
}
// Read the data packet from the file.
QByteArray dataBuffer;
dataBuffer.append(logFile.read(packetSize));
// Parse the packet. This operation passes the data to the kmlTalk object, which internally parses the data
// and then emits objectUpdated(UAVObject *) signals. These signals are connected to in the KmlExport constructor.
for (int i=0; i < dataBuffer.size(); i++) {
kmlTalk->processInputByte(dataBuffer[i]);
}
timeStampIdx++;
}
stopExport();
}
void KisAnimationExporter::frameReadyToSave()
{
QString frameNumber = QString("%1").arg(m_d->currentFrame, 4, 10, QChar('0'));
QString filename = m_d->filenamePrefix + frameNumber + m_d->filenameSuffix;
if (m_d->tmpDoc->exportDocument(QUrl::fromLocalFile(filename))) {
if (m_d->exporting && m_d->currentFrame < m_d->lastFrame) {
if (!m_d->batchMode) {
emit m_d->document->sigProgress((m_d->currentFrame - m_d->firstFrame) * 100 /
(m_d->lastFrame - m_d->firstFrame));
}
m_d->currentFrame++;
m_d->image->animationInterface()->requestFrameRegeneration(m_d->currentFrame, m_d->image->bounds());
return; //continue
}
} else {
//error
m_d->status = KisImportExportFilter::InternalError;
}
stopExport(); //finish
}
void KisAnimationExporter::cancel()
{
m_d->status = KisImportExportFilter::ProgressCancelled;
stopExport();
}
