git.cworth.org Git - apitrace/blob - gui/retracer.cpp

   1 #include "retracer.h"
   2
   3 #include "apitracecall.h"
   4
   5 #include "image.hpp"
   6
   7 #include <QDebug>
   8 #include <QVariant>
   9 #include <QList>
  10 #include <QImage>
  11
  12 #include <qjson/parser.h>
  13
  14 Retracer::Retracer(QObject *parent)
  15     : QThread(parent),
  16       m_benchmarking(false),
  17       m_doubleBuffered(true),
  18       m_captureState(false),
  19       m_captureCall(0)
  20 {
  21 #ifdef Q_OS_WIN
  22     QString format = QLatin1String("%1;");
  23 #else
  24     QString format = QLatin1String("%1:");
  25 #endif
  26     QString buildPath = format.arg(APITRACE_BINARY_DIR);
  27     m_processEnvironment = QProcessEnvironment::systemEnvironment();
  28     m_processEnvironment.insert("PATH", buildPath +
  29                                 m_processEnvironment.value("PATH"));
  30
  31     qputenv("PATH",
  32             m_processEnvironment.value("PATH").toLatin1());
  33 }
  34
  35 QString Retracer::fileName() const
  36 {
  37     return m_fileName;
  38 }
  39
  40 void Retracer::setFileName(const QString &name)
  41 {
  42     m_fileName = name;
  43 }
  44
  45 void Retracer::setAPI(trace::API api)
  46 {
  47     m_api = api;
  48 }
  49
  50 bool Retracer::isBenchmarking() const
  51 {
  52     return m_benchmarking;
  53 }
  54
  55 void Retracer::setBenchmarking(bool bench)
  56 {
  57     m_benchmarking = bench;
  58 }
  59
  60 bool Retracer::isDoubleBuffered() const
  61 {
  62     return m_doubleBuffered;
  63 }
  64
  65 void Retracer::setDoubleBuffered(bool db)
  66 {
  67     m_doubleBuffered = db;
  68 }
  69
  70 void Retracer::setCaptureAtCallNumber(qlonglong num)
  71 {
  72     m_captureCall = num;
  73 }
  74
  75 qlonglong Retracer::captureAtCallNumber() const
  76 {
  77     return m_captureCall;
  78 }
  79
  80 bool Retracer::captureState() const
  81 {
  82     return m_captureState;
  83 }
  84
  85 void Retracer::setCaptureState(bool enable)
  86 {
  87     m_captureState = enable;
  88 }
  89
  90 bool Retracer::captureThumbnails() const
  91 {
  92     return m_captureThumbnails;
  93 }
  94
  95 void Retracer::setCaptureThumbnails(bool enable)
  96 {
  97     m_captureThumbnails = enable;
  98 }
  99
 100
 101 void Retracer::run()
 102 {
 103     RetraceProcess *retrace = new RetraceProcess();
 104     retrace->process()->setProcessEnvironment(m_processEnvironment);
 105
 106     retrace->setFileName(m_fileName);
 107     retrace->setAPI(m_api);
 108     retrace->setBenchmarking(m_benchmarking);
 109     retrace->setDoubleBuffered(m_doubleBuffered);
 110     retrace->setCaptureState(m_captureState);
 111     retrace->setCaptureThumbnails(m_captureThumbnails);
 112     retrace->setCaptureAtCallNumber(m_captureCall);
 113
 114     connect(retrace, SIGNAL(finished(const QString&)),
 115             this, SLOT(cleanup()));
 116     connect(retrace, SIGNAL(error(const QString&)),
 117             this, SLOT(cleanup()));
 118     connect(retrace, SIGNAL(finished(const QString&)),
 119             this, SIGNAL(finished(const QString&)));
 120     connect(retrace, SIGNAL(error(const QString&)),
 121             this, SIGNAL(error(const QString&)));
 122     connect(retrace, SIGNAL(foundState(ApiTraceState*)),
 123             this, SIGNAL(foundState(ApiTraceState*)));
 124     connect(retrace, SIGNAL(foundThumbnails(const QList<QImage>&)),
 125             this, SIGNAL(foundThumbnails(const QList<QImage>&)));
 126     connect(retrace, SIGNAL(retraceErrors(const QList<ApiTraceError>&)),
 127             this, SIGNAL(retraceErrors(const QList<ApiTraceError>&)));
 128
 129     retrace->start();
 130
 131     exec();
 132
 133     /* means we need to kill the process */
 134     if (retrace->process()->state() != QProcess::NotRunning) {
 135         retrace->terminate();
 136     }
 137
 138     delete retrace;
 139 }
 140
 141
 142 void RetraceProcess::start()
 143 {
 144     QString prog;
 145     QStringList arguments;
 146
 147     if (m_api == trace::API_GL) {
 148         prog = QLatin1String("glretrace");
 149     } else if (m_api == trace::API_EGL) {
 150         prog = QLatin1String("eglretrace");
 151     } else {
 152         assert(0);
 153         return;
 154     }
 155
 156     if (m_doubleBuffered) {
 157         arguments << QLatin1String("-db");
 158     } else {
 159         arguments << QLatin1String("-sb");
 160     }
 161
 162     if (m_captureState || m_captureThumbnails) {
 163         if (m_captureState) {
 164             arguments << QLatin1String("-D");
 165             arguments << QString::number(m_captureCall);
 166         }
 167         if (m_captureThumbnails) {
 168             arguments << QLatin1String("-s"); // emit snapshots
 169             arguments << QLatin1String("-"); // emit to stdout
 170         }
 171     } else {
 172         if (m_benchmarking) {
 173             arguments << QLatin1String("-b");
 174         }
 175     }
 176
 177     arguments << m_fileName;
 178
 179     m_process->start(prog, arguments);
 180 }
 181
 182
 183 void RetraceProcess::replayFinished(int exitCode, QProcess::ExitStatus exitStatus)
 184 {
 185     QString msg;
 186
 187     if (exitStatus != QProcess::NormalExit) {
 188         msg = QLatin1String("Process crashed");
 189     } else if (exitCode != 0) {
 190         msg = QLatin1String("Process exited with non zero exit code");
 191     } else {
 192         if (m_captureState || m_captureThumbnails) {
 193             if (m_captureState) {
 194                 bool ok = false;
 195                 m_process->setReadChannel(QProcess::StandardOutput);
 196                 QVariantMap parsedJson = m_jsonParser->parse(m_process, &ok).toMap();
 197                 ApiTraceState *state = new ApiTraceState(parsedJson);
 198                 emit foundState(state);
 199                 msg = tr("State fetched.");
 200             }
 201             if (m_captureThumbnails) {
 202                 m_process->setReadChannel(QProcess::StandardOutput);
 203
 204                 QList<QImage> thumbnails;
 205
 206                 while (!m_process->atEnd()) {
 207                     unsigned channels = 0;
 208                     unsigned width = 0;
 209                     unsigned height = 0;
 210
 211                     char header[512];
 212                     qint64 headerSize = 0;
 213                     int headerLines = 3; // assume no optional comment line
 214
 215                     for (int headerLine = 0; headerLine < headerLines; ++headerLine) {
 216                         qint64 headerRead = m_process->readLine(&header[headerSize], sizeof(header) - headerSize);
 217
 218                         // if header actually contains optional comment line, ...
 219                         if (headerLine == 1 && header[headerSize] == '#') {
 220                             ++headerLines;
 221                         }
 222
 223                         headerSize += headerRead;
 224                     }
 225
 226                     const char *headerEnd = image::readPNMHeader(header, headerSize, &channels, &width, &height);
 227
 228                     // if invalid PNM header was encountered, ...
 229                     if (header == headerEnd) {
 230                         qDebug() << "error: invalid snapshot stream encountered\n";
 231                         break;
 232                     }
 233
 234                     //qDebug() << "channels: " << channels << ", width: " << width << ", height: " << height << "\n";
 235
 236                     QImage snapshot = QImage(width, height, channels == 1 ? QImage::Format_Mono : QImage::Format_RGB888);
 237
 238                     int rowBytes = channels * width;
 239                     for (int y = 0; y < height; ++y) {
 240                         unsigned char *scanLine = snapshot.scanLine(y);
 241                         m_process->read((char *) scanLine, rowBytes);
 242                     }
 243
 244                     QImage thumbnail = snapshot.scaled(16, 16, Qt::KeepAspectRatio, Qt::FastTransformation);
 245                     thumbnails.append(thumbnail);
 246                 }
 247
 248                 emit foundThumbnails(thumbnails);
 249                 msg = tr("Thumbnails fetched.");
 250             }
 251         } else {
 252             QByteArray output;
 253             output = m_process->readAllStandardOutput();
 254             msg = QString::fromUtf8(output);
 255         }
 256     }
 257
 258     m_process->setReadChannel(QProcess::StandardError);
 259     QList<ApiTraceError> errors;
 260     QRegExp regexp("(^\\d+): +(\\b\\w+\\b): ([^\\r\\n]+)[\\r\\n]*$");
 261     while (!m_process->atEnd()) {
 262         QString line = m_process->readLine();
 263         if (regexp.indexIn(line) != -1) {
 264             ApiTraceError error;
 265             error.callIndex = regexp.cap(1).toInt();
 266             error.type = regexp.cap(2);
 267             error.message = regexp.cap(3);
 268             errors.append(error);
 269         }
 270     }
 271     if (!errors.isEmpty()) {
 272         emit retraceErrors(errors);
 273     }
 274     emit finished(msg);
 275 }
 276
 277 void RetraceProcess::replayError(QProcess::ProcessError err)
 278 {
 279     /*
 280      * XXX: this function is likely unnecessary and should be eliminated given
 281      * that replayFinished is always called, even on errors.
 282      */
 283
 284 #if 0
 285     qDebug()<<"Process error = "<<err;
 286     qDebug()<<"\terr = "<<m_process->readAllStandardError();
 287     qDebug()<<"\tout = "<<m_process->readAllStandardOutput();
 288 #endif
 289
 290     emit error(
 291         tr("Couldn't execute the replay file '%1'").arg(m_fileName));
 292 }
 293
 294 Q_DECLARE_METATYPE(QList<ApiTraceError>);
 295 RetraceProcess::RetraceProcess(QObject *parent)
 296     : QObject(parent)
 297 {
 298     m_process = new QProcess(this);
 299     m_jsonParser = new QJson::Parser();
 300
 301     qRegisterMetaType<QList<ApiTraceError> >();
 302
 303     connect(m_process, SIGNAL(finished(int, QProcess::ExitStatus)),
 304             this, SLOT(replayFinished(int, QProcess::ExitStatus)));
 305     connect(m_process, SIGNAL(error(QProcess::ProcessError)),
 306             this, SLOT(replayError(QProcess::ProcessError)));
 307 }
 308
 309 QProcess * RetraceProcess::process() const
 310 {
 311     return m_process;
 312 }
 313
 314 QString RetraceProcess::fileName() const
 315 {
 316     return m_fileName;
 317 }
 318
 319 void RetraceProcess::setFileName(const QString &name)
 320 {
 321     m_fileName = name;
 322 }
 323
 324 void RetraceProcess::setAPI(trace::API api)
 325 {
 326     m_api = api;
 327 }
 328
 329 bool RetraceProcess::isBenchmarking() const
 330 {
 331     return m_benchmarking;
 332 }
 333
 334 void RetraceProcess::setBenchmarking(bool bench)
 335 {
 336     m_benchmarking = bench;
 337 }
 338
 339 bool RetraceProcess::isDoubleBuffered() const
 340 {
 341     return m_doubleBuffered;
 342 }
 343
 344 void RetraceProcess::setDoubleBuffered(bool db)
 345 {
 346     m_doubleBuffered = db;
 347 }
 348
 349 void RetraceProcess::setCaptureAtCallNumber(qlonglong num)
 350 {
 351     m_captureCall = num;
 352 }
 353
 354 qlonglong RetraceProcess::captureAtCallNumber() const
 355 {
 356     return m_captureCall;
 357 }
 358
 359 bool RetraceProcess::captureState() const
 360 {
 361     return m_captureState;
 362 }
 363
 364 void RetraceProcess::setCaptureState(bool enable)
 365 {
 366     m_captureState = enable;
 367 }
 368
 369 bool RetraceProcess::captureThumbnails() const
 370 {
 371     return m_captureThumbnails;
 372 }
 373
 374 void RetraceProcess::setCaptureThumbnails(bool enable)
 375 {
 376     m_captureThumbnails = enable;
 377 }
 378
 379 void RetraceProcess::terminate()
 380 {
 381     if (m_process) {
 382         m_process->terminate();
 383         emit finished(tr("Process terminated."));
 384     }
 385 }
 386
 387 void Retracer::cleanup()
 388 {
 389     quit();
 390 }
 391
 392 RetraceProcess::~RetraceProcess()
 393 {
 394     delete m_jsonParser;
 395 }
 396
 397 #include "retracer.moc"