src/Dialog_Processing.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2012 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Dialog_Processing.h"
  23
  24 #include "Global.h"
  25 #include "Resource.h"
  26 #include "Model_FileList.h"
  27 #include "Model_Progress.h"
  28 #include "Model_Settings.h"
  29 #include "Thread_Process.h"
  30 #include "Thread_CPUObserver.h"
  31 #include "Thread_RAMObserver.h"
  32 #include "Thread_DiskObserver.h"
  33 #include "Dialog_LogView.h"
  34 #include "Encoder_AAC.h"
  35 #include "Encoder_AAC_FHG.h"
  36 #include "Encoder_AAC_QAAC.h"
  37 #include "Encoder_AC3.h"
  38 #include "Encoder_DCA.h"
  39 #include "Encoder_FLAC.h"
  40 #include "Encoder_MP3.h"
  41 #include "Encoder_Vorbis.h"
  42 #include "Encoder_Wave.h"
  43 #include "Filter_Downmix.h"
  44 #include "Filter_Normalize.h"
  45 #include "Filter_Resample.h"
  46 #include "Filter_ToneAdjust.h"
  47 #include "WinSevenTaskbar.h"
  48
  49 #include <QApplication>
  50 #include <QRect>
  51 #include <QDesktopWidget>
  52 #include <QMovie>
  53 #include <QMessageBox>
  54 #include <QTimer>
  55 #include <QCloseEvent>
  56 #include <QDesktopServices>
  57 #include <QUrl>
  58 #include <QUuid>
  59 #include <QFileInfo>
  60 #include <QDir>
  61 #include <QMenu>
  62 #include <QSystemTrayIcon>
  63 #include <QProcess>
  64 #include <QProgressDialog>
  65 #include <QTime>
  66
  67 #include <MMSystem.h>
  68 #include <math.h>
  69 #include <float.h>
  70
  71 ////////////////////////////////////////////////////////////
  72
  73 //Maximum number of parallel instances
  74 #define MAX_INSTANCES 16U
  75
  76 //Function to calculate the number of instances
  77 static int cores2instances(int cores);
  78
  79 ////////////////////////////////////////////////////////////
  80
  81 #define CHANGE_BACKGROUND_COLOR(WIDGET, COLOR) \
  82 { \
  83         QPalette palette = WIDGET->palette(); \
  84         palette.setColor(QPalette::Background, COLOR); \
  85         WIDGET->setPalette(palette); \
  86 }
  87
  88 #define SET_PROGRESS_TEXT(TXT) \
  89 { \
  90         label_progress->setText(TXT); \
  91         m_systemTray->setToolTip(QString().sprintf("LameXP v%d.%02d\n%ls", lamexp_version_major(), lamexp_version_minor(), QString(TXT).utf16())); \
  92 }
  93
  94 #define SET_FONT_BOLD(WIDGET,BOLD) { QFont _font = WIDGET->font(); _font.setBold(BOLD); WIDGET->setFont(_font); }
  95 #define UPDATE_MIN_WIDTH(WIDGET) { if(WIDGET->width() > WIDGET->minimumWidth()) WIDGET->setMinimumWidth(WIDGET->width()); }
  96
  97 ////////////////////////////////////////////////////////////
  98 // Constructor
  99 ////////////////////////////////////////////////////////////
 100
 101 ProcessingDialog::ProcessingDialog(FileListModel *fileListModel, AudioFileModel *metaInfo, SettingsModel *settings, QWidget *parent)
 102 :
 103         QDialog(parent),
 104         m_systemTray(new QSystemTrayIcon(QIcon(":/icons/cd_go.png"), this)),
 105         m_settings(settings),
 106         m_metaInfo(metaInfo),
 107         m_shutdownFlag(shutdownFlag_None),
 108         m_diskObserver(NULL),
 109         m_cpuObserver(NULL),
 110         m_ramObserver(NULL)
 111 {
 112         //Init the dialog, from the .ui file
 113         setupUi(this);
 114         setWindowFlags(windowFlags() ^ Qt::WindowContextHelpButtonHint);
 115
 116         //Update header icon
 117         label_headerIcon->setPixmap(lamexp_app_icon().pixmap(label_headerIcon->size()));
 118
 119         //Setup version info
 120         label_versionInfo->setText(QString().sprintf("v%d.%02d %s (Build %d)", lamexp_version_major(), lamexp_version_minor(), lamexp_version_release(), lamexp_version_build()));
 121         label_versionInfo->installEventFilter(this);
 122
 123         //Register meta type
 124         qRegisterMetaType<QUuid>("QUuid");
 125
 126         //Center window in screen
 127         QRect desktopRect = QApplication::desktop()->screenGeometry();
 128         QRect thisRect = this->geometry();
 129         move((desktopRect.width() - thisRect.width()) / 2, (desktopRect.height() - thisRect.height()) / 2);
 130         setMinimumSize(thisRect.width(), thisRect.height());
 131
 132         //Enable buttons
 133         connect(button_AbortProcess, SIGNAL(clicked()), this, SLOT(abortEncoding()));
 134
 135         //Init progress indicator
 136         m_progressIndicator = new QMovie(":/images/Working.gif");
 137         m_progressIndicator->setCacheMode(QMovie::CacheAll);
 138         m_progressIndicator->setSpeed(50);
 139         label_headerWorking->setMovie(m_progressIndicator);
 140         progressBar->setValue(0);
 141
 142         //Init progress model
 143         m_progressModel = new ProgressModel();
 144         view_log->setModel(m_progressModel);
 145         view_log->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 146         view_log->verticalHeader()->hide();
 147         view_log->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 148         view_log->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);
 149         view_log->viewport()->installEventFilter(this);
 150         connect(m_progressModel, SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(progressModelChanged()));
 151         connect(m_progressModel, SIGNAL(modelReset()), this, SLOT(progressModelChanged()));
 152         connect(view_log, SIGNAL(activated(QModelIndex)), this, SLOT(logViewDoubleClicked(QModelIndex)));
 153         connect(view_log->horizontalHeader(), SIGNAL(sectionResized(int,int,int)), this, SLOT(logViewSectionSizeChanged(int,int,int)));
 154
 155         //Create context menu
 156         m_contextMenu = new QMenu();
 157         QAction *contextMenuDetailsAction = m_contextMenu->addAction(QIcon(":/icons/zoom.png"), tr("Show details for selected job"));
 158         QAction *contextMenuShowFileAction = m_contextMenu->addAction(QIcon(":/icons/folder_go.png"), tr("Browse Output File Location"));
 159
 160         view_log->setContextMenuPolicy(Qt::CustomContextMenu);
 161         connect(view_log, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 162         connect(contextMenuDetailsAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuDetailsActionTriggered()));
 163         connect(contextMenuShowFileAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuShowFileActionTriggered()));
 164         SET_FONT_BOLD(contextMenuDetailsAction, true);
 165
 166         //Enque jobs
 167         if(fileListModel)
 168         {
 169                 for(int i = 0; i < fileListModel->rowCount(); i++)
 170                 {
 171                         m_pendingJobs.append(fileListModel->getFile(fileListModel->index(i,0)));
 172                 }
 173         }
 174
 175         //Translate
 176         label_headerStatus->setText(QString("<b>%1</b><br>%2").arg(tr("Encoding Files"), tr("Your files are being encoded, please be patient...")));
 177
 178         //Enable system tray icon
 179         connect(m_systemTray, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(systemTrayActivated(QSystemTrayIcon::ActivationReason)));
 180
 181         //Init other vars
 182         m_runningThreads = 0;
 183         m_currentFile = 0;
 184         m_allJobs.clear();
 185         m_succeededJobs.clear();
 186         m_failedJobs.clear();
 187         m_userAborted = false;
 188         m_forcedAbort = false;
 189         m_timerStart = 0I64;
 190 }
 191
 192 ////////////////////////////////////////////////////////////
 193 // Destructor
 194 ////////////////////////////////////////////////////////////
 195
 196 ProcessingDialog::~ProcessingDialog(void)
 197 {
 198         view_log->setModel(NULL);
 199
 200         if(m_progressIndicator)
 201         {
 202                 m_progressIndicator->stop();
 203         }
 204
 205         if(m_diskObserver)
 206         {
 207                 m_diskObserver->stop();
 208                 if(!m_diskObserver->wait(15000))
 209                 {
 210                         m_diskObserver->terminate();
 211                         m_diskObserver->wait();
 212                 }
 213         }
 214         if(m_cpuObserver)
 215         {
 216                 m_cpuObserver->stop();
 217                 if(!m_cpuObserver->wait(15000))
 218                 {
 219                         m_cpuObserver->terminate();
 220                         m_cpuObserver->wait();
 221                 }
 222         }
 223         if(m_ramObserver)
 224         {
 225                 m_ramObserver->stop();
 226                 if(!m_ramObserver->wait(15000))
 227                 {
 228                         m_ramObserver->terminate();
 229                         m_ramObserver->wait();
 230                 }
 231         }
 232
 233         LAMEXP_DELETE(m_progressIndicator);
 234         LAMEXP_DELETE(m_progressModel);
 235         LAMEXP_DELETE(m_contextMenu);
 236         LAMEXP_DELETE(m_systemTray);
 237         LAMEXP_DELETE(m_diskObserver);
 238         LAMEXP_DELETE(m_cpuObserver);
 239         LAMEXP_DELETE(m_ramObserver);
 240
 241         WinSevenTaskbar::setOverlayIcon(this, NULL);
 242         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNoState);
 243
 244         while(!m_threadList.isEmpty())
 245         {
 246                 ProcessThread *thread = m_threadList.takeFirst();
 247                 thread->terminate();
 248                 thread->wait(15000);
 249                 delete thread;
 250         }
 251 }
 252
 253 ////////////////////////////////////////////////////////////
 254 // EVENTS
 255 ////////////////////////////////////////////////////////////
 256
 257 void ProcessingDialog::showEvent(QShowEvent *event)
 258 {
 259         static const char *NA = " N/A";
 260
 261         setCloseButtonEnabled(false);
 262         button_closeDialog->setEnabled(false);
 263         button_AbortProcess->setEnabled(false);
 264         m_systemTray->setVisible(true);
 265
 266         if(!SetPriorityClass(GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS))
 267         {
 268                 SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
 269         }
 270
 271         label_cpu->setText(NA);
 272         label_disk->setText(NA);
 273         label_ram->setText(NA);
 274
 275         QTimer::singleShot(1000, this, SLOT(initEncoding()));
 276 }
 277
 278 void ProcessingDialog::closeEvent(QCloseEvent *event)
 279 {
 280         if(!button_closeDialog->isEnabled())
 281         {
 282                 event->ignore();
 283         }
 284         else
 285         {
 286                 m_systemTray->setVisible(false);
 287         }
 288 }
 289
 290 bool ProcessingDialog::eventFilter(QObject *obj, QEvent *event)
 291 {
 292         static QColor defaultColor = QColor();
 293
 294         if(obj == label_versionInfo)
 295         {
 296                 if(event->type() == QEvent::Enter)
 297                 {
 298                         QPalette palette = label_versionInfo->palette();
 299                         defaultColor = palette.color(QPalette::Normal, QPalette::WindowText);
 300                         palette.setColor(QPalette::Normal, QPalette::WindowText, Qt::red);
 301                         label_versionInfo->setPalette(palette);
 302                 }
 303                 else if(event->type() == QEvent::Leave)
 304                 {
 305                         QPalette palette = label_versionInfo->palette();
 306                         palette.setColor(QPalette::Normal, QPalette::WindowText, defaultColor);
 307                         label_versionInfo->setPalette(palette);
 308                 }
 309                 else if(event->type() == QEvent::MouseButtonPress)
 310                 {
 311                         QUrl url(lamexp_website_url());
 312                         QDesktopServices::openUrl(url);
 313                 }
 314         }
 315
 316         return false;
 317 }
 318
 319 bool ProcessingDialog::event(QEvent *e)
 320 {
 321         switch(e->type())
 322         {
 323         case lamexp_event_queryendsession:
 324                 qWarning("System is shutting down, preparing to abort...");
 325                 if(!m_userAborted) abortEncoding(true);
 326                 return true;
 327         case lamexp_event_endsession:
 328                 qWarning("System is shutting down, encoding will be aborted now...");
 329                 if(isVisible())
 330                 {
 331                         while(!close())
 332                         {
 333                                 if(!m_userAborted) abortEncoding(true);
 334                                 QApplication::processEvents(QEventLoop::WaitForMoreEvents & QEventLoop::ExcludeUserInputEvents);
 335                         }
 336                 }
 337                 m_pendingJobs.clear();
 338                 return true;
 339         default:
 340                 return QDialog::event(e);
 341         }
 342 }
 343
 344 bool ProcessingDialog::winEvent(MSG *message, long *result)
 345 {
 346         return WinSevenTaskbar::handleWinEvent(message, result);
 347 }
 348
 349 ////////////////////////////////////////////////////////////
 350 // SLOTS
 351 ////////////////////////////////////////////////////////////
 352
 353 void ProcessingDialog::initEncoding(void)
 354 {
 355         m_runningThreads = 0;
 356         m_currentFile = 0;
 357         m_allJobs.clear();
 358         m_succeededJobs.clear();
 359         m_failedJobs.clear();
 360         m_userAborted = false;
 361         m_forcedAbort = false;
 362         m_playList.clear();
 363
 364         CHANGE_BACKGROUND_COLOR(frame_header, QColor(Qt::white));
 365         SET_PROGRESS_TEXT(tr("Encoding files, please wait..."));
 366         m_progressIndicator->start();
 367
 368         button_closeDialog->setEnabled(false);
 369         button_AbortProcess->setEnabled(true);
 370         progressBar->setRange(0, m_pendingJobs.count());
 371         checkBox_shutdownComputer->setEnabled(true);
 372         checkBox_shutdownComputer->setChecked(false);
 373
 374         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNormalState);
 375         WinSevenTaskbar::setTaskbarProgress(this, 0, m_pendingJobs.count());
 376         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/control_play_blue.png"));
 377
 378         if(!m_diskObserver)
 379         {
 380                 m_diskObserver = new DiskObserverThread(m_settings->customTempPathEnabled() ? m_settings->customTempPath() : lamexp_temp_folder2());
 381                 connect(m_diskObserver, SIGNAL(messageLogged(QString,int)), m_progressModel, SLOT(addSystemMessage(QString,int)), Qt::QueuedConnection);
 382                 connect(m_diskObserver, SIGNAL(freeSpaceChanged(quint64)), this, SLOT(diskUsageHasChanged(quint64)), Qt::QueuedConnection);
 383                 m_diskObserver->start();
 384         }
 385         if(!m_cpuObserver)
 386         {
 387                 m_cpuObserver = new CPUObserverThread();
 388                 connect(m_cpuObserver, SIGNAL(currentUsageChanged(double)), this, SLOT(cpuUsageHasChanged(double)), Qt::QueuedConnection);
 389                 m_cpuObserver->start();
 390         }
 391         if(!m_ramObserver)
 392         {
 393                 m_ramObserver = new RAMObserverThread();
 394                 connect(m_ramObserver, SIGNAL(currentUsageChanged(double)), this, SLOT(ramUsageHasChanged(double)), Qt::QueuedConnection);
 395                 m_ramObserver->start();
 396         }
 397
 398         unsigned int maximumInstances = qBound(0U, m_settings->maximumInstances(), MAX_INSTANCES);
 399         if(maximumInstances < 1)
 400         {
 401                 lamexp_cpu_t cpuFeatures = lamexp_detect_cpu_features();
 402                 maximumInstances = cores2instances(qBound(1, cpuFeatures.count, 64));
 403         }
 404
 405         maximumInstances = qBound(1U, maximumInstances, static_cast<unsigned int>(m_pendingJobs.count()));
 406         if(maximumInstances > 1)
 407         {
 408                 m_progressModel->addSystemMessage(tr("Multi-threading enabled: Running %1 instances in parallel!").arg(QString::number(maximumInstances)));
 409         }
 410
 411         for(unsigned int i = 0; i < maximumInstances; i++)
 412         {
 413                 startNextJob();
 414         }
 415
 416         LARGE_INTEGER counter;
 417         if(QueryPerformanceCounter(&counter))
 418         {
 419                 m_timerStart = counter.QuadPart;
 420         }
 421 }
 422
 423 void ProcessingDialog::abortEncoding(bool force)
 424 {
 425         m_userAborted = true;
 426         if(force) m_forcedAbort = true;
 427         button_AbortProcess->setEnabled(false);
 428         SET_PROGRESS_TEXT(tr("Aborted! Waiting for running jobs to terminate..."));
 429
 430         for(int i = 0; i < m_threadList.count(); i++)
 431         {
 432                 m_threadList.at(i)->abort();
 433         }
 434 }
 435
 436 void ProcessingDialog::doneEncoding(void)
 437 {
 438         m_runningThreads--;
 439         progressBar->setValue(progressBar->value() + 1);
 440
 441         if(!m_userAborted)
 442         {
 443                 SET_PROGRESS_TEXT(tr("Encoding: %1 files of %2 completed so far, please wait...").arg(QString::number(progressBar->value()), QString::number(progressBar->maximum())));
 444                 WinSevenTaskbar::setTaskbarProgress(this, progressBar->value(), progressBar->maximum());
 445         }
 446
 447         int index = m_threadList.indexOf(dynamic_cast<ProcessThread*>(QWidget::sender()));
 448         if(index >= 0)
 449         {
 450                 m_threadList.takeAt(index)->deleteLater();
 451         }
 452
 453         if(!m_pendingJobs.isEmpty() && !m_userAborted)
 454         {
 455                 startNextJob();
 456                 qDebug("Running jobs: %u", m_runningThreads);
 457                 return;
 458         }
 459
 460         if(m_runningThreads > 0)
 461         {
 462                 qDebug("Running jobs: %u", m_runningThreads);
 463                 return;
 464         }
 465
 466         QApplication::setOverrideCursor(Qt::WaitCursor);
 467         qDebug("Running jobs: %u", m_runningThreads);
 468
 469         if(!m_userAborted && m_settings->createPlaylist() && !m_settings->outputToSourceDir())
 470         {
 471                 SET_PROGRESS_TEXT(tr("Creating the playlist file, please wait..."));
 472                 QApplication::processEvents();
 473                 writePlayList();
 474         }
 475
 476         if(m_userAborted)
 477         {
 478                 CHANGE_BACKGROUND_COLOR(frame_header, QColor("#FFF3BA"));
 479                 WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarErrorState);
 480                 WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/error.png"));
 481                 SET_PROGRESS_TEXT((m_succeededJobs.count() > 0) ? tr("Process was aborted by the user after %1 file(s)!").arg(QString::number(m_succeededJobs.count())) : tr("Process was aborted prematurely by the user!"));
 482                 m_systemTray->showMessage(tr("LameXP - Aborted"), tr("Process was aborted by the user."), QSystemTrayIcon::Warning);
 483                 m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 484                 QApplication::processEvents();
 485                 if(m_settings->soundsEnabled() && !m_forcedAbort)
 486                 {
 487                         PlaySound(MAKEINTRESOURCE(IDR_WAVE_ABORTED), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
 488                 }
 489         }
 490         else
 491         {
 492                 LARGE_INTEGER counter, frequency;
 493                 if(QueryPerformanceCounter(&counter) && QueryPerformanceFrequency(&frequency))
 494                 {
 495                         if((m_timerStart > 0I64) && (frequency.QuadPart > 0I64) && (m_timerStart < counter.QuadPart))
 496                         {
 497                                 double timeElapsed = static_cast<double>(counter.QuadPart - m_timerStart) / static_cast<double>(frequency.QuadPart);
 498                                 m_progressModel->addSystemMessage(tr("Process finished after %1.").arg(time2text(timeElapsed)), ProgressModel::SysMsg_Performance);
 499                         }
 500                 }
 501
 502                 if(m_failedJobs.count() > 0)
 503                 {
 504                         CHANGE_BACKGROUND_COLOR(frame_header, QColor("#FFBABA"));
 505                         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarErrorState);
 506                         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/exclamation.png"));
 507                         SET_PROGRESS_TEXT(tr("Error: %1 of %2 files failed. Double-click failed items for detailed information!").arg(QString::number(m_failedJobs.count()), QString::number(m_failedJobs.count() + m_succeededJobs.count())));
 508                         m_systemTray->showMessage(tr("LameXP - Error"), tr("At least one file has failed!"), QSystemTrayIcon::Critical);
 509                         m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 510                         QApplication::processEvents();
 511                         if(m_settings->soundsEnabled()) PlaySound(MAKEINTRESOURCE(IDR_WAVE_ERROR), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
 512                 }
 513                 else
 514                 {
 515                         CHANGE_BACKGROUND_COLOR(frame_header, QColor("#E0FFE2"));
 516                         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNormalState);
 517                         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/accept.png"));
 518                         SET_PROGRESS_TEXT(tr("All files completed successfully."));
 519                         m_systemTray->showMessage(tr("LameXP - Done"), tr("All files completed successfully."), QSystemTrayIcon::Information);
 520                         m_systemTray->setIcon(QIcon(":/icons/cd_add.png"));
 521                         QApplication::processEvents();
 522                         if(m_settings->soundsEnabled()) PlaySound(MAKEINTRESOURCE(IDR_WAVE_SUCCESS), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
 523                 }
 524         }
 525
 526         setCloseButtonEnabled(true);
 527         button_closeDialog->setEnabled(true);
 528         button_AbortProcess->setEnabled(false);
 529         checkBox_shutdownComputer->setEnabled(false);
 530
 531         m_progressModel->restoreHiddenItems();
 532         view_log->scrollToBottom();
 533         m_progressIndicator->stop();
 534         progressBar->setValue(progressBar->maximum());
 535         WinSevenTaskbar::setTaskbarProgress(this, progressBar->value(), progressBar->maximum());
 536
 537         QApplication::restoreOverrideCursor();
 538
 539         if(!m_userAborted && checkBox_shutdownComputer->isChecked())
 540         {
 541                 if(shutdownComputer())
 542                 {
 543                         m_shutdownFlag = m_settings->hibernateComputer() ? shutdownFlag_Hibernate : shutdownFlag_TurnPowerOff;
 544                         accept();
 545                 }
 546         }
 547 }
 548
 549 void ProcessingDialog::processFinished(const QUuid &jobId, const QString &outFileName, bool success)
 550 {
 551         if(success)
 552         {
 553                 m_playList.insert(jobId, outFileName);
 554                 m_succeededJobs.append(jobId);
 555         }
 556         else
 557         {
 558                 m_failedJobs.append(jobId);
 559         }
 560 }
 561
 562 void ProcessingDialog::progressModelChanged(void)
 563 {
 564         view_log->scrollToBottom();
 565 }
 566
 567 void ProcessingDialog::logViewDoubleClicked(const QModelIndex &index)
 568 {
 569         if(m_runningThreads == 0)
 570         {
 571                 const QStringList &logFile = m_progressModel->getLogFile(index);
 572
 573                 if(!logFile.isEmpty())
 574                 {
 575                         LogViewDialog *logView = new LogViewDialog(this);
 576                         logView->setWindowTitle(QString("LameXP - [%1]").arg(m_progressModel->data(index, Qt::DisplayRole).toString()));
 577                         logView->exec(logFile);
 578                         LAMEXP_DELETE(logView);
 579                 }
 580                 else
 581                 {
 582                         QMessageBox::information(this, windowTitle(), m_progressModel->data(m_progressModel->index(index.row(), 0)).toString());
 583                 }
 584         }
 585         else
 586         {
 587                 MessageBeep(MB_ICONWARNING);
 588         }
 589 }
 590
 591 void ProcessingDialog::logViewSectionSizeChanged(int logicalIndex, int oldSize, int newSize)
 592 {
 593         if(logicalIndex == 1)
 594         {
 595                 if(QHeaderView *hdr = view_log->horizontalHeader())
 596                 {
 597                         hdr->setMinimumSectionSize(qMax(hdr->minimumSectionSize(), hdr->sectionSize(1)));
 598                 }
 599         }
 600 }
 601
 602 void ProcessingDialog::contextMenuTriggered(const QPoint &pos)
 603 {
 604         QAbstractScrollArea *scrollArea = dynamic_cast<QAbstractScrollArea*>(QObject::sender());
 605         QWidget *sender = scrollArea ? scrollArea->viewport() : dynamic_cast<QWidget*>(QObject::sender());
 606
 607         if(pos.x() <= sender->width() && pos.y() <= sender->height() && pos.x() >= 0 && pos.y() >= 0)
 608         {
 609                 m_contextMenu->popup(sender->mapToGlobal(pos));
 610         }
 611 }
 612
 613 void ProcessingDialog::contextMenuDetailsActionTriggered(void)
 614 {
 615         QModelIndex index = view_log->indexAt(view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 616         logViewDoubleClicked(index.isValid() ? index : view_log->currentIndex());
 617 }
 618
 619 void ProcessingDialog::contextMenuShowFileActionTriggered(void)
 620 {
 621         QModelIndex index = view_log->indexAt(view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 622         const QUuid &jobId = m_progressModel->getJobId(index.isValid() ? index : view_log->currentIndex());
 623         QString filePath = m_playList.value(jobId, QString());
 624
 625         if(filePath.isEmpty())
 626         {
 627                 MessageBeep(MB_ICONWARNING);
 628                 return;
 629         }
 630
 631         if(QFileInfo(filePath).exists())
 632         {
 633                 QString systemRootPath;
 634
 635                 QDir systemRoot(lamexp_known_folder(lamexp_folder_systemfolder));
 636                 if(systemRoot.exists() && systemRoot.cdUp())
 637                 {
 638                         systemRootPath = systemRoot.canonicalPath();
 639                 }
 640
 641                 if(!systemRootPath.isEmpty())
 642                 {
 643                         QFileInfo explorer(QString("%1/explorer.exe").arg(systemRootPath));
 644                         if(explorer.exists() && explorer.isFile())
 645                         {
 646                                 QProcess::execute(explorer.canonicalFilePath(), QStringList() << "/select," << QDir::toNativeSeparators(QFileInfo(filePath).canonicalFilePath()));
 647                                 return;
 648                         }
 649                 }
 650                 else
 651                 {
 652                         qWarning("SystemRoot directory could not be detected!");
 653                 }
 654         }
 655         else
 656         {
 657                 qWarning("File not found: %s", filePath.toLatin1().constData());
 658                 MessageBeep(MB_ICONERROR);
 659         }
 660 }
 661
 662 ////////////////////////////////////////////////////////////
 663 // Private Functions
 664 ////////////////////////////////////////////////////////////
 665
 666 void ProcessingDialog::startNextJob(void)
 667 {
 668         if(m_pendingJobs.isEmpty())
 669         {
 670                 return;
 671         }
 672
 673         m_currentFile++;
 674         AudioFileModel currentFile = updateMetaInfo(m_pendingJobs.takeFirst());
 675         bool nativeResampling = false;
 676
 677         //Create encoder instance
 678         AbstractEncoder *encoder = makeEncoder(&nativeResampling);
 679
 680         //Create processing thread
 681         ProcessThread *thread = new ProcessThread
 682         (
 683                 currentFile,
 684                 (m_settings->outputToSourceDir() ? QFileInfo(currentFile.filePath()).absolutePath() : m_settings->outputDir()),
 685                 (m_settings->customTempPathEnabled() ? m_settings->customTempPath() : lamexp_temp_folder2()),
 686                 encoder,
 687                 m_settings->prependRelativeSourcePath() && (!m_settings->outputToSourceDir())
 688         );
 689
 690         //Add audio filters
 691         if(m_settings->forceStereoDownmix())
 692         {
 693                 thread->addFilter(new DownmixFilter());
 694         }
 695         if((m_settings->samplingRate() > 0) && !nativeResampling)
 696         {
 697                 if(SettingsModel::samplingRates[m_settings->samplingRate()] != currentFile.formatAudioSamplerate() || currentFile.formatAudioSamplerate() == 0)
 698                 {
 699                         thread->addFilter(new ResampleFilter(SettingsModel::samplingRates[m_settings->samplingRate()]));
 700                 }
 701         }
 702         if((m_settings->toneAdjustBass() != 0) || (m_settings->toneAdjustTreble() != 0))
 703         {
 704                 thread->addFilter(new ToneAdjustFilter(m_settings->toneAdjustBass(), m_settings->toneAdjustTreble()));
 705         }
 706         if(m_settings->normalizationFilterEnabled())
 707         {
 708                 thread->addFilter(new NormalizeFilter(m_settings->normalizationFilterMaxVolume(), m_settings->normalizationFilterEqualizationMode()));
 709         }
 710         if(m_settings->renameOutputFilesEnabled() && (!m_settings->renameOutputFilesPattern().simplified().isEmpty()))
 711         {
 712                 thread->setRenamePattern(m_settings->renameOutputFilesPattern());
 713         }
 714
 715         m_threadList.append(thread);
 716         m_allJobs.append(thread->getId());
 717
 718         //Connect thread signals
 719         connect(thread, SIGNAL(finished()), this, SLOT(doneEncoding()), Qt::QueuedConnection);
 720         connect(thread, SIGNAL(processStateInitialized(QUuid,QString,QString,int)), m_progressModel, SLOT(addJob(QUuid,QString,QString,int)), Qt::QueuedConnection);
 721         connect(thread, SIGNAL(processStateChanged(QUuid,QString,int)), m_progressModel, SLOT(updateJob(QUuid,QString,int)), Qt::QueuedConnection);
 722         connect(thread, SIGNAL(processStateFinished(QUuid,QString,bool)), this, SLOT(processFinished(QUuid,QString,bool)), Qt::QueuedConnection);
 723         connect(thread, SIGNAL(processMessageLogged(QUuid,QString)), m_progressModel, SLOT(appendToLog(QUuid,QString)), Qt::QueuedConnection);
 724
 725         //Give it a go!
 726         m_runningThreads++;
 727         thread->start();
 728 }
 729
 730 AbstractEncoder *ProcessingDialog::makeEncoder(bool *nativeResampling)
 731 {
 732         AbstractEncoder *encoder =  NULL;
 733         *nativeResampling = false;
 734
 735         switch(m_settings->compressionEncoder())
 736         {
 737         case SettingsModel::MP3Encoder:
 738                 {
 739                         MP3Encoder *mp3Encoder = new MP3Encoder();
 740                         mp3Encoder->setBitrate(m_settings->compressionBitrate());
 741                         mp3Encoder->setRCMode(m_settings->compressionRCMode());
 742                         mp3Encoder->setAlgoQuality(m_settings->lameAlgoQuality());
 743                         if(m_settings->bitrateManagementEnabled())
 744                         {
 745                                 mp3Encoder->setBitrateLimits(m_settings->bitrateManagementMinRate(), m_settings->bitrateManagementMaxRate());
 746                         }
 747                         if(m_settings->samplingRate() > 0)
 748                         {
 749                                 mp3Encoder->setSamplingRate(SettingsModel::samplingRates[m_settings->samplingRate()]);
 750                                 *nativeResampling = true;
 751                         }
 752                         mp3Encoder->setChannelMode(m_settings->lameChannelMode());
 753                         mp3Encoder->setCustomParams(m_settings->customParametersLAME());
 754                         encoder = mp3Encoder;
 755                 }
 756                 break;
 757         case SettingsModel::VorbisEncoder:
 758                 {
 759                         VorbisEncoder *vorbisEncoder = new VorbisEncoder();
 760                         vorbisEncoder->setBitrate(m_settings->compressionBitrate());
 761                         vorbisEncoder->setRCMode(m_settings->compressionRCMode());
 762                         if(m_settings->bitrateManagementEnabled())
 763                         {
 764                                 vorbisEncoder->setBitrateLimits(m_settings->bitrateManagementMinRate(), m_settings->bitrateManagementMaxRate());
 765                         }
 766                         if(m_settings->samplingRate() > 0)
 767                         {
 768                                 vorbisEncoder->setSamplingRate(SettingsModel::samplingRates[m_settings->samplingRate()]);
 769                                 *nativeResampling = true;
 770                         }
 771                         vorbisEncoder->setCustomParams(m_settings->customParametersOggEnc());
 772                         encoder = vorbisEncoder;
 773                 }
 774                 break;
 775         case SettingsModel::AACEncoder:
 776                 {
 777                         if(lamexp_check_tool("qaac.exe") && lamexp_check_tool("libsoxrate.dll"))
 778                         {
 779                                 QAACEncoder *aacEncoder = new QAACEncoder();
 780                                 aacEncoder->setBitrate(m_settings->compressionBitrate());
 781                                 aacEncoder->setRCMode(m_settings->compressionRCMode());
 782                                 aacEncoder->setProfile(m_settings->aacEncProfile());
 783                                 aacEncoder->setCustomParams(m_settings->customParametersAacEnc());
 784                                 encoder = aacEncoder;
 785                         }
 786                         else if(lamexp_check_tool("fhgaacenc.exe") && lamexp_check_tool("enc_fhgaac.dll"))
 787                         {
 788                                 FHGAACEncoder *aacEncoder = new FHGAACEncoder();
 789                                 aacEncoder->setBitrate(m_settings->compressionBitrate());
 790                                 aacEncoder->setRCMode(m_settings->compressionRCMode());
 791                                 aacEncoder->setProfile(m_settings->aacEncProfile());
 792                                 aacEncoder->setCustomParams(m_settings->customParametersAacEnc());
 793                                 encoder = aacEncoder;
 794                         }
 795                         else
 796                         {
 797                                 AACEncoder *aacEncoder = new AACEncoder();
 798                                 aacEncoder->setBitrate(m_settings->compressionBitrate());
 799                                 aacEncoder->setRCMode(m_settings->compressionRCMode());
 800                                 aacEncoder->setEnable2Pass(m_settings->neroAACEnable2Pass());
 801                                 aacEncoder->setProfile(m_settings->aacEncProfile());
 802                                 aacEncoder->setCustomParams(m_settings->customParametersAacEnc());
 803                                 encoder = aacEncoder;
 804                         }
 805                 }
 806                 break;
 807         case SettingsModel::AC3Encoder:
 808                 {
 809                         AC3Encoder *ac3Encoder = new AC3Encoder();
 810                         ac3Encoder->setBitrate(m_settings->compressionBitrate());
 811                         ac3Encoder->setRCMode(m_settings->compressionRCMode());
 812                         ac3Encoder->setCustomParams(m_settings->customParametersAften());
 813                         ac3Encoder->setAudioCodingMode(m_settings->aftenAudioCodingMode());
 814                         ac3Encoder->setDynamicRangeCompression(m_settings->aftenDynamicRangeCompression());
 815                         ac3Encoder->setExponentSearchSize(m_settings->aftenExponentSearchSize());
 816                         ac3Encoder->setFastBitAllocation(m_settings->aftenFastBitAllocation());
 817                         encoder = ac3Encoder;
 818                 }
 819                 break;
 820         case SettingsModel::FLACEncoder:
 821                 {
 822                         FLACEncoder *flacEncoder = new FLACEncoder();
 823                         flacEncoder->setBitrate(m_settings->compressionBitrate());
 824                         flacEncoder->setRCMode(m_settings->compressionRCMode());
 825                         flacEncoder->setCustomParams(m_settings->customParametersFLAC());
 826                         encoder = flacEncoder;
 827                 }
 828                 break;
 829         case SettingsModel::DCAEncoder:
 830                 {
 831                         DCAEncoder *dcaEncoder = new DCAEncoder();
 832                         dcaEncoder->setBitrate(m_settings->compressionBitrate());
 833                         dcaEncoder->setRCMode(m_settings->compressionRCMode());
 834                         encoder = dcaEncoder;
 835                 }
 836                 break;
 837         case SettingsModel::PCMEncoder:
 838                 {
 839                         WaveEncoder *waveEncoder = new WaveEncoder();
 840                         waveEncoder->setBitrate(m_settings->compressionBitrate());
 841                         waveEncoder->setRCMode(m_settings->compressionRCMode());
 842                         encoder = waveEncoder;
 843                 }
 844                 break;
 845         default:
 846                 throw "Unsupported encoder!";
 847         }
 848
 849         return encoder;
 850 }
 851
 852 void ProcessingDialog::writePlayList(void)
 853 {
 854         if(m_succeededJobs.count() <= 0 || m_allJobs.count() <= 0)
 855         {
 856                 qWarning("WritePlayList: Nothing to do!");
 857                 return;
 858         }
 859
 860         //Init local variables
 861         QStringList list;
 862         QRegExp regExp1("\\[\\d\\d\\][^/\\\\]+$", Qt::CaseInsensitive);
 863         QRegExp regExp2("\\(\\d\\d\\)[^/\\\\]+$", Qt::CaseInsensitive);
 864         QRegExp regExp3("\\d\\d[^/\\\\]+$", Qt::CaseInsensitive);
 865         bool usePrefix[3] = {true, true, true};
 866         bool useUtf8 = false;
 867         int counter = 1;
 868
 869         //Generate playlist name
 870         QString playListName = (m_metaInfo->fileAlbum().isEmpty() ? "Playlist" : m_metaInfo->fileAlbum());
 871         if(!m_metaInfo->fileArtist().isEmpty())
 872         {
 873                 playListName = QString("%1 - %2").arg(m_metaInfo->fileArtist(), playListName);
 874         }
 875
 876         //Clean playlist name
 877         playListName = lamexp_clean_filename(playListName);
 878
 879         //Create list of audio files
 880         for(int i = 0; i < m_allJobs.count(); i++)
 881         {
 882                 if(!m_succeededJobs.contains(m_allJobs.at(i))) continue;
 883                 list << QDir::toNativeSeparators(QDir(m_settings->outputDir()).relativeFilePath(m_playList.value(m_allJobs.at(i), "N/A")));
 884         }
 885
 886         //Use prefix?
 887         for(int i = 0; i < list.count(); i++)
 888         {
 889                 if(regExp1.indexIn(list.at(i)) < 0) usePrefix[0] = false;
 890                 if(regExp2.indexIn(list.at(i)) < 0) usePrefix[1] = false;
 891                 if(regExp3.indexIn(list.at(i)) < 0) usePrefix[2] = false;
 892         }
 893         if(usePrefix[0] || usePrefix[1] || usePrefix[2])
 894         {
 895                 playListName.prepend(usePrefix[0] ? "[00] " : (usePrefix[1] ? "(00) " : "00 "));
 896         }
 897
 898         //Do we need an UTF-8 playlist?
 899         for(int i = 0; i < list.count(); i++)
 900         {
 901                 if(wcscmp(QWCHAR(QString::fromLatin1(list.at(i).toLatin1().constData())), QWCHAR(list.at(i))))
 902                 {
 903                         useUtf8 = true;
 904                         break;
 905                 }
 906         }
 907
 908         //Generate playlist output file
 909         QString playListFile = QString("%1/%2.%3").arg(m_settings->outputDir(), playListName, (useUtf8 ? "m3u8" : "m3u"));
 910         while(QFileInfo(playListFile).exists())
 911         {
 912                 playListFile = QString("%1/%2 (%3).%4").arg(m_settings->outputDir(), playListName, QString::number(++counter), (useUtf8 ? "m3u8" : "m3u"));
 913         }
 914
 915         //Now write playlist to output file
 916         QFile playList(playListFile);
 917         if(playList.open(QIODevice::WriteOnly))
 918         {
 919                 if(useUtf8)
 920                 {
 921                         playList.write("\xef\xbb\xbf");
 922                 }
 923                 playList.write("#EXTM3U\r\n");
 924                 while(!list.isEmpty())
 925                 {
 926                         playList.write(useUtf8 ? list.takeFirst().toUtf8().constData() : list.takeFirst().toLatin1().constData());
 927                         playList.write("\r\n");
 928                 }
 929                 playList.close();
 930         }
 931         else
 932         {
 933                 QMessageBox::warning(this, tr("Playlist creation failed"), QString("%1<br><nobr>%2</nobr>").arg(tr("The playlist file could not be created:"), playListFile));
 934         }
 935 }
 936
 937 AudioFileModel ProcessingDialog::updateMetaInfo(const AudioFileModel &audioFile)
 938 {
 939         if(!m_settings->writeMetaTags())
 940         {
 941                 return AudioFileModel(audioFile, false);
 942         }
 943
 944         AudioFileModel result = audioFile;
 945         result.updateMetaInfo(*m_metaInfo);
 946
 947         if(m_metaInfo->filePosition() == UINT_MAX)
 948         {
 949                 result.setFilePosition(m_currentFile);
 950         }
 951
 952         return result;
 953 }
 954
 955 void ProcessingDialog::setCloseButtonEnabled(bool enabled)
 956 {
 957         HMENU hMenu = GetSystemMenu((HWND) winId(), FALSE);
 958         EnableMenuItem(hMenu, SC_CLOSE, MF_BYCOMMAND | (enabled ? MF_ENABLED : MF_GRAYED));
 959 }
 960
 961 void ProcessingDialog::systemTrayActivated(QSystemTrayIcon::ActivationReason reason)
 962 {
 963         if(reason == QSystemTrayIcon::DoubleClick)
 964         {
 965                 SetForegroundWindow(this->winId());
 966         }
 967 }
 968
 969 void ProcessingDialog::cpuUsageHasChanged(const double val)
 970 {
 971
 972         this->label_cpu->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
 973         UPDATE_MIN_WIDTH(label_cpu);
 974 }
 975
 976 void ProcessingDialog::ramUsageHasChanged(const double val)
 977 {
 978
 979         this->label_ram->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
 980         UPDATE_MIN_WIDTH(label_ram);
 981 }
 982
 983 void ProcessingDialog::diskUsageHasChanged(const quint64 val)
 984 {
 985         int postfix = 0;
 986         const char *postfixStr[6] = {"B", "KB", "MB", "GB", "TB", "PB"};
 987         double space = static_cast<double>(val);
 988
 989         while((space >= 1000.0) && (postfix < 5))
 990         {
 991                 space = space / 1024.0;
 992                 postfix++;
 993         }
 994
 995         this->label_disk->setText(QString().sprintf(" %3.1f %s", space, postfixStr[postfix]));
 996         UPDATE_MIN_WIDTH(label_disk);
 997 }
 998
 999 bool ProcessingDialog::shutdownComputer(void)
1000 {
1001         const int iTimeout = m_settings->hibernateComputer() ? 10 : 30;
1002         const Qt::WindowFlags flags = Qt::WindowStaysOnTopHint | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowSystemMenuHint;
1003         const QString text = QString("%1%2%1").arg(QString().fill(' ', 18), tr("Warning: Computer will shutdown in %1 seconds..."));
1004
1005         qWarning("Initiating shutdown sequence!");
1006
1007         QProgressDialog progressDialog(text.arg(iTimeout), tr("Cancel Shutdown"), 0, iTimeout + 1, this, flags);
1008         QPushButton *cancelButton = new QPushButton(tr("Cancel Shutdown"), &progressDialog);
1009         cancelButton->setIcon(QIcon(":/icons/power_on.png"));
1010         progressDialog.setModal(true);
1011         progressDialog.setAutoClose(false);
1012         progressDialog.setAutoReset(false);
1013         progressDialog.setWindowIcon(QIcon(":/icons/power_off.png"));
1014         progressDialog.setCancelButton(cancelButton);
1015         progressDialog.show();
1016
1017         QApplication::processEvents();
1018
1019         if(m_settings->soundsEnabled())
1020         {
1021                 QApplication::setOverrideCursor(Qt::WaitCursor);
1022                 PlaySound(MAKEINTRESOURCE(IDR_WAVE_SHUTDOWN), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
1023                 QApplication::restoreOverrideCursor();
1024         }
1025
1026         QTimer timer;
1027         timer.setInterval(1000);
1028         timer.start();
1029
1030         QEventLoop eventLoop(this);
1031         connect(&timer, SIGNAL(timeout()), &eventLoop, SLOT(quit()));
1032         connect(&progressDialog, SIGNAL(canceled()), &eventLoop, SLOT(quit()));
1033
1034         for(int i = 1; i <= iTimeout; i++)
1035         {
1036                 eventLoop.exec();
1037                 if(progressDialog.wasCanceled())
1038                 {
1039                         progressDialog.close();
1040                         return false;
1041                 }
1042                 progressDialog.setValue(i+1);
1043                 progressDialog.setLabelText(text.arg(iTimeout-i));
1044                 if(iTimeout-i == 3) progressDialog.setCancelButton(NULL);
1045                 QApplication::processEvents();
1046                 PlaySound(MAKEINTRESOURCE((i < iTimeout) ? IDR_WAVE_BEEP : IDR_WAVE_BEEP_LONG), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
1047         }
1048
1049         progressDialog.close();
1050         return true;
1051 }
1052
1053 QString ProcessingDialog::time2text(const double timeVal) const
1054 {
1055         double intPart = 0;
1056         double frcPart = modf(timeVal, &intPart);
1057         int x = 0, y = 0; QString a, b;
1058
1059         QTime time = QTime().addSecs(qRound(intPart)).addMSecs(qRound(frcPart * 1000.0));
1060
1061         if(time.hour() > 0)
1062         {
1063                 x = time.hour();   a = tr("hour(s)");
1064                 y = time.minute(); b = tr("minute(s)");
1065         }
1066         else if(time.minute() > 0)
1067         {
1068                 x = time.minute(); a = tr("minute(s)");
1069                 y = time.second(); b = tr("second(s)");
1070         }
1071         else
1072         {
1073                 x = time.second(); a = tr("second(s)");
1074                 y = time.msec();   b = tr("millisecond(s)");
1075         }
1076
1077         return QString("%1 %2, %3 %4").arg(QString::number(x), a, QString::number(y), b);
1078 }
1079
1080 ////////////////////////////////////////////////////////////
1081 // HELPER FUNCTIONS
1082 ////////////////////////////////////////////////////////////
1083
1084 static int cores2instances(int cores)
1085 {
1086         //This function is a "cubic spline" with sampling points at:
1087         //(1,1); (2,2); (4,4); (8,6); (16,8); (32,11); (64,16)
1088         static const double LUT[8][5] =
1089         {
1090                 { 1.0,  0.014353554, -0.043060662, 1.028707108,  0.000000000},
1091                 { 2.0, -0.028707108,  0.215303309, 0.511979167,  0.344485294},
1092                 { 4.0,  0.010016468, -0.249379596, 2.370710784, -2.133823529},
1093                 { 8.0,  0.000282437, -0.015762868, 0.501776961,  2.850000000},
1094                 {16.0,  0.000033270, -0.003802849, 0.310416667,  3.870588235},
1095                 {32.0,  0.000006343, -0.001217831, 0.227696078,  4.752941176},
1096                 {64.0,  0.000000000,  0.000000000, 0.000000000, 16.000000000},
1097                 {DBL_MAX, 0.0, 0.0, 0.0, 0.0}
1098         };
1099
1100         double x = abs(static_cast<double>(cores)), y = 1.0;
1101
1102         for(size_t i = 0; i < 7; i++)
1103         {
1104                 if((x >= LUT[i][0]) && (x < LUT[i+1][0]))
1105                 {
1106                         y = (((((LUT[i][1] * x) + LUT[i][2]) * x) + LUT[i][3]) * x) + LUT[i][4];
1107                         break;
1108                 }
1109         }
1110
1111         return qRound(y);
1112 }