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         m_firstShow(true)
 112 {
 113         //Init the dialog, from the .ui file
 114         setupUi(this);
 115         setWindowFlags(windowFlags() ^ Qt::WindowContextHelpButtonHint);
 116
 117         //Update header icon
 118         label_headerIcon->setPixmap(lamexp_app_icon().pixmap(label_headerIcon->size()));
 119
 120         //Setup version info
 121         label_versionInfo->setText(QString().sprintf("v%d.%02d %s (Build %d)", lamexp_version_major(), lamexp_version_minor(), lamexp_version_release(), lamexp_version_build()));
 122         label_versionInfo->installEventFilter(this);
 123
 124         //Register meta type
 125         qRegisterMetaType<QUuid>("QUuid");
 126
 127         //Center window in screen
 128         QRect desktopRect = QApplication::desktop()->screenGeometry();
 129         QRect thisRect = this->geometry();
 130         move((desktopRect.width() - thisRect.width()) / 2, (desktopRect.height() - thisRect.height()) / 2);
 131         setMinimumSize(thisRect.width(), thisRect.height());
 132
 133         //Enable buttons
 134         connect(button_AbortProcess, SIGNAL(clicked()), this, SLOT(abortEncoding()));
 135
 136         //Init progress indicator
 137         m_progressIndicator = new QMovie(":/images/Working.gif");
 138         m_progressIndicator->setCacheMode(QMovie::CacheAll);
 139         m_progressIndicator->setSpeed(50);
 140         label_headerWorking->setMovie(m_progressIndicator);
 141         progressBar->setValue(0);
 142
 143         //Init progress model
 144         m_progressModel = new ProgressModel();
 145         view_log->setModel(m_progressModel);
 146         view_log->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 147         view_log->verticalHeader()->hide();
 148         view_log->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 149         view_log->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);
 150         view_log->viewport()->installEventFilter(this);
 151         connect(m_progressModel, SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(progressModelChanged()));
 152         connect(m_progressModel, SIGNAL(modelReset()), this, SLOT(progressModelChanged()));
 153         connect(view_log, SIGNAL(activated(QModelIndex)), this, SLOT(logViewDoubleClicked(QModelIndex)));
 154         connect(view_log->horizontalHeader(), SIGNAL(sectionResized(int,int,int)), this, SLOT(logViewSectionSizeChanged(int,int,int)));
 155
 156         //Create context menu
 157         m_contextMenu = new QMenu();
 158         QAction *contextMenuDetailsAction = m_contextMenu->addAction(QIcon(":/icons/zoom.png"), tr("Show details for selected job"));
 159         QAction *contextMenuShowFileAction = m_contextMenu->addAction(QIcon(":/icons/folder_go.png"), tr("Browse Output File Location"));
 160
 161         view_log->setContextMenuPolicy(Qt::CustomContextMenu);
 162         connect(view_log, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 163         connect(contextMenuDetailsAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuDetailsActionTriggered()));
 164         connect(contextMenuShowFileAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuShowFileActionTriggered()));
 165         SET_FONT_BOLD(contextMenuDetailsAction, true);
 166
 167         //Enque jobs
 168         if(fileListModel)
 169         {
 170                 for(int i = 0; i < fileListModel->rowCount(); i++)
 171                 {
 172                         m_pendingJobs.append(fileListModel->getFile(fileListModel->index(i,0)));
 173                 }
 174         }
 175
 176         //Translate
 177         label_headerStatus->setText(QString("<b>%1</b><br>%2").arg(tr("Encoding Files"), tr("Your files are being encoded, please be patient...")));
 178
 179         //Enable system tray icon
 180         connect(m_systemTray, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(systemTrayActivated(QSystemTrayIcon::ActivationReason)));
 181
 182         //Init other vars
 183         m_runningThreads = 0;
 184         m_currentFile = 0;
 185         m_allJobs.clear();
 186         m_succeededJobs.clear();
 187         m_failedJobs.clear();
 188         m_userAborted = false;
 189         m_forcedAbort = false;
 190         m_timerStart = 0I64;
 191 }
 192
 193 ////////////////////////////////////////////////////////////
 194 // Destructor
 195 ////////////////////////////////////////////////////////////
 196
 197 ProcessingDialog::~ProcessingDialog(void)
 198 {
 199         view_log->setModel(NULL);
 200
 201         if(m_progressIndicator)
 202         {
 203                 m_progressIndicator->stop();
 204         }
 205
 206         if(m_diskObserver)
 207         {
 208                 m_diskObserver->stop();
 209                 if(!m_diskObserver->wait(15000))
 210                 {
 211                         m_diskObserver->terminate();
 212                         m_diskObserver->wait();
 213                 }
 214         }
 215         if(m_cpuObserver)
 216         {
 217                 m_cpuObserver->stop();
 218                 if(!m_cpuObserver->wait(15000))
 219                 {
 220                         m_cpuObserver->terminate();
 221                         m_cpuObserver->wait();
 222                 }
 223         }
 224         if(m_ramObserver)
 225         {
 226                 m_ramObserver->stop();
 227                 if(!m_ramObserver->wait(15000))
 228                 {
 229                         m_ramObserver->terminate();
 230                         m_ramObserver->wait();
 231                 }
 232         }
 233
 234         LAMEXP_DELETE(m_progressIndicator);
 235         LAMEXP_DELETE(m_progressModel);
 236         LAMEXP_DELETE(m_contextMenu);
 237         LAMEXP_DELETE(m_systemTray);
 238         LAMEXP_DELETE(m_diskObserver);
 239         LAMEXP_DELETE(m_cpuObserver);
 240         LAMEXP_DELETE(m_ramObserver);
 241
 242         WinSevenTaskbar::setOverlayIcon(this, NULL);
 243         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNoState);
 244
 245         while(!m_threadList.isEmpty())
 246         {
 247                 ProcessThread *thread = m_threadList.takeFirst();
 248                 thread->terminate();
 249                 thread->wait(15000);
 250                 delete thread;
 251         }
 252 }
 253
 254 ////////////////////////////////////////////////////////////
 255 // EVENTS
 256 ////////////////////////////////////////////////////////////
 257
 258 void ProcessingDialog::showEvent(QShowEvent *event)
 259 {
 260         QDialog::showEvent(event);
 261
 262         if(m_firstShow)
 263         {
 264                 static const char *NA = " N/A";
 265
 266                 setCloseButtonEnabled(false);
 267                 button_closeDialog->setEnabled(false);
 268                 button_AbortProcess->setEnabled(false);
 269                 m_systemTray->setVisible(true);
 270
 271                 if(!SetPriorityClass(GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS))
 272                 {
 273                         SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
 274                 }
 275
 276                 label_cpu->setText(NA);
 277                 label_disk->setText(NA);
 278                 label_ram->setText(NA);
 279
 280                 QTimer::singleShot(1000, this, SLOT(initEncoding()));
 281                 m_firstShow = false;
 282         }
 283 }
 284
 285 void ProcessingDialog::closeEvent(QCloseEvent *event)
 286 {
 287         if(!button_closeDialog->isEnabled())
 288         {
 289                 event->ignore();
 290         }
 291         else
 292         {
 293                 m_systemTray->setVisible(false);
 294         }
 295 }
 296
 297 bool ProcessingDialog::eventFilter(QObject *obj, QEvent *event)
 298 {
 299         static QColor defaultColor = QColor();
 300
 301         if(obj == label_versionInfo)
 302         {
 303                 if(event->type() == QEvent::Enter)
 304                 {
 305                         QPalette palette = label_versionInfo->palette();
 306                         defaultColor = palette.color(QPalette::Normal, QPalette::WindowText);
 307                         palette.setColor(QPalette::Normal, QPalette::WindowText, Qt::red);
 308                         label_versionInfo->setPalette(palette);
 309                 }
 310                 else if(event->type() == QEvent::Leave)
 311                 {
 312                         QPalette palette = label_versionInfo->palette();
 313                         palette.setColor(QPalette::Normal, QPalette::WindowText, defaultColor);
 314                         label_versionInfo->setPalette(palette);
 315                 }
 316                 else if(event->type() == QEvent::MouseButtonPress)
 317                 {
 318                         QUrl url(lamexp_website_url());
 319                         QDesktopServices::openUrl(url);
 320                 }
 321         }
 322
 323         return false;
 324 }
 325
 326 bool ProcessingDialog::event(QEvent *e)
 327 {
 328         switch(e->type())
 329         {
 330         case lamexp_event_queryendsession:
 331                 qWarning("System is shutting down, preparing to abort...");
 332                 if(!m_userAborted) abortEncoding(true);
 333                 return true;
 334         case lamexp_event_endsession:
 335                 qWarning("System is shutting down, encoding will be aborted now...");
 336                 if(isVisible())
 337                 {
 338                         while(!close())
 339                         {
 340                                 if(!m_userAborted) abortEncoding(true);
 341                                 QApplication::processEvents(QEventLoop::WaitForMoreEvents & QEventLoop::ExcludeUserInputEvents);
 342                         }
 343                 }
 344                 m_pendingJobs.clear();
 345                 return true;
 346         default:
 347                 return QDialog::event(e);
 348         }
 349 }
 350
 351 bool ProcessingDialog::winEvent(MSG *message, long *result)
 352 {
 353         return WinSevenTaskbar::handleWinEvent(message, result);
 354 }
 355
 356 ////////////////////////////////////////////////////////////
 357 // SLOTS
 358 ////////////////////////////////////////////////////////////
 359
 360 void ProcessingDialog::initEncoding(void)
 361 {
 362         qDebug("Initializing encoding process...");
 363
 364         m_runningThreads = 0;
 365         m_currentFile = 0;
 366         m_allJobs.clear();
 367         m_succeededJobs.clear();
 368         m_failedJobs.clear();
 369         m_userAborted = false;
 370         m_forcedAbort = false;
 371         m_playList.clear();
 372
 373         CHANGE_BACKGROUND_COLOR(frame_header, QColor(Qt::white));
 374         SET_PROGRESS_TEXT(tr("Encoding files, please wait..."));
 375         m_progressIndicator->start();
 376
 377         button_closeDialog->setEnabled(false);
 378         button_AbortProcess->setEnabled(true);
 379         progressBar->setRange(0, m_pendingJobs.count());
 380         checkBox_shutdownComputer->setEnabled(true);
 381         checkBox_shutdownComputer->setChecked(false);
 382
 383         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNormalState);
 384         WinSevenTaskbar::setTaskbarProgress(this, 0, m_pendingJobs.count());
 385         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/control_play_blue.png"));
 386
 387         if(!m_diskObserver)
 388         {
 389                 m_diskObserver = new DiskObserverThread(m_settings->customTempPathEnabled() ? m_settings->customTempPath() : lamexp_temp_folder2());
 390                 connect(m_diskObserver, SIGNAL(messageLogged(QString,int)), m_progressModel, SLOT(addSystemMessage(QString,int)), Qt::QueuedConnection);
 391                 connect(m_diskObserver, SIGNAL(freeSpaceChanged(quint64)), this, SLOT(diskUsageHasChanged(quint64)), Qt::QueuedConnection);
 392                 m_diskObserver->start();
 393         }
 394         if(!m_cpuObserver)
 395         {
 396                 m_cpuObserver = new CPUObserverThread();
 397                 connect(m_cpuObserver, SIGNAL(currentUsageChanged(double)), this, SLOT(cpuUsageHasChanged(double)), Qt::QueuedConnection);
 398                 m_cpuObserver->start();
 399         }
 400         if(!m_ramObserver)
 401         {
 402                 m_ramObserver = new RAMObserverThread();
 403                 connect(m_ramObserver, SIGNAL(currentUsageChanged(double)), this, SLOT(ramUsageHasChanged(double)), Qt::QueuedConnection);
 404                 m_ramObserver->start();
 405         }
 406
 407         unsigned int maximumInstances = qBound(0U, m_settings->maximumInstances(), MAX_INSTANCES);
 408         if(maximumInstances < 1)
 409         {
 410                 lamexp_cpu_t cpuFeatures = lamexp_detect_cpu_features(lamexp_arguments());
 411                 maximumInstances = cores2instances(qBound(1, cpuFeatures.count, 64));
 412         }
 413
 414         maximumInstances = qBound(1U, maximumInstances, static_cast<unsigned int>(m_pendingJobs.count()));
 415         if(maximumInstances > 1)
 416         {
 417                 m_progressModel->addSystemMessage(tr("Multi-threading enabled: Running %1 instances in parallel!").arg(QString::number(maximumInstances)));
 418         }
 419
 420         for(unsigned int i = 0; i < maximumInstances; i++)
 421         {
 422                 startNextJob();
 423         }
 424
 425         LARGE_INTEGER counter;
 426         if(QueryPerformanceCounter(&counter))
 427         {
 428                 m_timerStart = counter.QuadPart;
 429         }
 430 }
 431
 432 void ProcessingDialog::abortEncoding(bool force)
 433 {
 434         m_userAborted = true;
 435         if(force) m_forcedAbort = true;
 436         button_AbortProcess->setEnabled(false);
 437         SET_PROGRESS_TEXT(tr("Aborted! Waiting for running jobs to terminate..."));
 438
 439         for(int i = 0; i < m_threadList.count(); i++)
 440         {
 441                 m_threadList.at(i)->abort();
 442         }
 443 }
 444
 445 void ProcessingDialog::doneEncoding(void)
 446 {
 447         m_runningThreads--;
 448         progressBar->setValue(progressBar->value() + 1);
 449
 450         if(!m_userAborted)
 451         {
 452                 SET_PROGRESS_TEXT(tr("Encoding: %1 files of %2 completed so far, please wait...").arg(QString::number(progressBar->value()), QString::number(progressBar->maximum())));
 453                 WinSevenTaskbar::setTaskbarProgress(this, progressBar->value(), progressBar->maximum());
 454         }
 455
 456         int index = m_threadList.indexOf(dynamic_cast<ProcessThread*>(QWidget::sender()));
 457         if(index >= 0)
 458         {
 459                 m_threadList.takeAt(index)->deleteLater();
 460         }
 461
 462         if(!m_pendingJobs.isEmpty() && !m_userAborted)
 463         {
 464                 startNextJob();
 465                 qDebug("Running jobs: %u", m_runningThreads);
 466                 return;
 467         }
 468
 469         if(m_runningThreads > 0)
 470         {
 471                 qDebug("Running jobs: %u", m_runningThreads);
 472                 return;
 473         }
 474
 475         QApplication::setOverrideCursor(Qt::WaitCursor);
 476         qDebug("Running jobs: %u", m_runningThreads);
 477
 478         if(!m_userAborted && m_settings->createPlaylist() && !m_settings->outputToSourceDir())
 479         {
 480                 SET_PROGRESS_TEXT(tr("Creating the playlist file, please wait..."));
 481                 QApplication::processEvents();
 482                 writePlayList();
 483         }
 484
 485         if(m_userAborted)
 486         {
 487                 CHANGE_BACKGROUND_COLOR(frame_header, QColor("#FFF3BA"));
 488                 WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarErrorState);
 489                 WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/error.png"));
 490                 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!"));
 491                 m_systemTray->showMessage(tr("LameXP - Aborted"), tr("Process was aborted by the user."), QSystemTrayIcon::Warning);
 492                 m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 493                 QApplication::processEvents();
 494                 if(m_settings->soundsEnabled() && !m_forcedAbort)
 495                 {
 496                         PlaySound(MAKEINTRESOURCE(IDR_WAVE_ABORTED), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
 497                 }
 498         }
 499         else
 500         {
 501                 LARGE_INTEGER counter, frequency;
 502                 if(QueryPerformanceCounter(&counter) && QueryPerformanceFrequency(&frequency))
 503                 {
 504                         if((m_timerStart > 0I64) && (frequency.QuadPart > 0I64) && (m_timerStart < counter.QuadPart))
 505                         {
 506                                 double timeElapsed = static_cast<double>(counter.QuadPart - m_timerStart) / static_cast<double>(frequency.QuadPart);
 507                                 m_progressModel->addSystemMessage(tr("Process finished after %1.").arg(time2text(timeElapsed)), ProgressModel::SysMsg_Performance);
 508                         }
 509                 }
 510
 511                 if(m_failedJobs.count() > 0)
 512                 {
 513                         CHANGE_BACKGROUND_COLOR(frame_header, QColor("#FFBABA"));
 514                         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarErrorState);
 515                         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/exclamation.png"));
 516                         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())));
 517                         m_systemTray->showMessage(tr("LameXP - Error"), tr("At least one file has failed!"), QSystemTrayIcon::Critical);
 518                         m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 519                         QApplication::processEvents();
 520                         if(m_settings->soundsEnabled()) PlaySound(MAKEINTRESOURCE(IDR_WAVE_ERROR), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
 521                 }
 522                 else
 523                 {
 524                         CHANGE_BACKGROUND_COLOR(frame_header, QColor("#E0FFE2"));
 525                         WinSevenTaskbar::setTaskbarState(this, WinSevenTaskbar::WinSevenTaskbarNormalState);
 526                         WinSevenTaskbar::setOverlayIcon(this, &QIcon(":/icons/accept.png"));
 527                         SET_PROGRESS_TEXT(tr("All files completed successfully."));
 528                         m_systemTray->showMessage(tr("LameXP - Done"), tr("All files completed successfully."), QSystemTrayIcon::Information);
 529                         m_systemTray->setIcon(QIcon(":/icons/cd_add.png"));
 530                         QApplication::processEvents();
 531                         if(m_settings->soundsEnabled()) PlaySound(MAKEINTRESOURCE(IDR_WAVE_SUCCESS), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
 532                 }
 533         }
 534
 535         setCloseButtonEnabled(true);
 536         button_closeDialog->setEnabled(true);
 537         button_AbortProcess->setEnabled(false);
 538         checkBox_shutdownComputer->setEnabled(false);
 539
 540         m_progressModel->restoreHiddenItems();
 541         view_log->scrollToBottom();
 542         m_progressIndicator->stop();
 543         progressBar->setValue(progressBar->maximum());
 544         WinSevenTaskbar::setTaskbarProgress(this, progressBar->value(), progressBar->maximum());
 545
 546         QApplication::restoreOverrideCursor();
 547
 548         if(!m_userAborted && checkBox_shutdownComputer->isChecked())
 549         {
 550                 if(shutdownComputer())
 551                 {
 552                         m_shutdownFlag = m_settings->hibernateComputer() ? shutdownFlag_Hibernate : shutdownFlag_TurnPowerOff;
 553                         accept();
 554                 }
 555         }
 556 }
 557
 558 void ProcessingDialog::processFinished(const QUuid &jobId, const QString &outFileName, bool success)
 559 {
 560         if(success)
 561         {
 562                 m_playList.insert(jobId, outFileName);
 563                 m_succeededJobs.append(jobId);
 564         }
 565         else
 566         {
 567                 m_failedJobs.append(jobId);
 568         }
 569 }
 570
 571 void ProcessingDialog::progressModelChanged(void)
 572 {
 573         view_log->scrollToBottom();
 574 }
 575
 576 void ProcessingDialog::logViewDoubleClicked(const QModelIndex &index)
 577 {
 578         if(m_runningThreads == 0)
 579         {
 580                 const QStringList &logFile = m_progressModel->getLogFile(index);
 581
 582                 if(!logFile.isEmpty())
 583                 {
 584                         LogViewDialog *logView = new LogViewDialog(this);
 585                         logView->setWindowTitle(QString("LameXP - [%1]").arg(m_progressModel->data(index, Qt::DisplayRole).toString()));
 586                         logView->exec(logFile);
 587                         LAMEXP_DELETE(logView);
 588                 }
 589                 else
 590                 {
 591                         QMessageBox::information(this, windowTitle(), m_progressModel->data(m_progressModel->index(index.row(), 0)).toString());
 592                 }
 593         }
 594         else
 595         {
 596                 MessageBeep(MB_ICONWARNING);
 597         }
 598 }
 599
 600 void ProcessingDialog::logViewSectionSizeChanged(int logicalIndex, int oldSize, int newSize)
 601 {
 602         if(logicalIndex == 1)
 603         {
 604                 if(QHeaderView *hdr = view_log->horizontalHeader())
 605                 {
 606                         hdr->setMinimumSectionSize(qMax(hdr->minimumSectionSize(), hdr->sectionSize(1)));
 607                 }
 608         }
 609 }
 610
 611 void ProcessingDialog::contextMenuTriggered(const QPoint &pos)
 612 {
 613         QAbstractScrollArea *scrollArea = dynamic_cast<QAbstractScrollArea*>(QObject::sender());
 614         QWidget *sender = scrollArea ? scrollArea->viewport() : dynamic_cast<QWidget*>(QObject::sender());
 615
 616         if(pos.x() <= sender->width() && pos.y() <= sender->height() && pos.x() >= 0 && pos.y() >= 0)
 617         {
 618                 m_contextMenu->popup(sender->mapToGlobal(pos));
 619         }
 620 }
 621
 622 void ProcessingDialog::contextMenuDetailsActionTriggered(void)
 623 {
 624         QModelIndex index = view_log->indexAt(view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 625         logViewDoubleClicked(index.isValid() ? index : view_log->currentIndex());
 626 }
 627
 628 void ProcessingDialog::contextMenuShowFileActionTriggered(void)
 629 {
 630         QModelIndex index = view_log->indexAt(view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 631         const QUuid &jobId = m_progressModel->getJobId(index.isValid() ? index : view_log->currentIndex());
 632         QString filePath = m_playList.value(jobId, QString());
 633
 634         if(filePath.isEmpty())
 635         {
 636                 MessageBeep(MB_ICONWARNING);
 637                 return;
 638         }
 639
 640         if(QFileInfo(filePath).exists())
 641         {
 642                 QString systemRootPath;
 643
 644                 QDir systemRoot(lamexp_known_folder(lamexp_folder_systemfolder));
 645                 if(systemRoot.exists() && systemRoot.cdUp())
 646                 {
 647                         systemRootPath = systemRoot.canonicalPath();
 648                 }
 649
 650                 if(!systemRootPath.isEmpty())
 651                 {
 652                         QFileInfo explorer(QString("%1/explorer.exe").arg(systemRootPath));
 653                         if(explorer.exists() && explorer.isFile())
 654                         {
 655                                 QProcess::execute(explorer.canonicalFilePath(), QStringList() << "/select," << QDir::toNativeSeparators(QFileInfo(filePath).canonicalFilePath()));
 656                                 return;
 657                         }
 658                 }
 659                 else
 660                 {
 661                         qWarning("SystemRoot directory could not be detected!");
 662                 }
 663         }
 664         else
 665         {
 666                 qWarning("File not found: %s", filePath.toLatin1().constData());
 667                 MessageBeep(MB_ICONERROR);
 668         }
 669 }
 670
 671 ////////////////////////////////////////////////////////////
 672 // Private Functions
 673 ////////////////////////////////////////////////////////////
 674
 675 void ProcessingDialog::startNextJob(void)
 676 {
 677         if(m_pendingJobs.isEmpty())
 678         {
 679                 return;
 680         }
 681
 682         m_currentFile++;
 683         AudioFileModel currentFile = updateMetaInfo(m_pendingJobs.takeFirst());
 684         bool nativeResampling = false;
 685
 686         //Create encoder instance
 687         AbstractEncoder *encoder = makeEncoder(&nativeResampling);
 688
 689         //Create processing thread
 690         ProcessThread *thread = new ProcessThread
 691         (
 692                 currentFile,
 693                 (m_settings->outputToSourceDir() ? QFileInfo(currentFile.filePath()).absolutePath() : m_settings->outputDir()),
 694                 (m_settings->customTempPathEnabled() ? m_settings->customTempPath() : lamexp_temp_folder2()),
 695                 encoder,
 696                 m_settings->prependRelativeSourcePath() && (!m_settings->outputToSourceDir())
 697         );
 698
 699         //Add audio filters
 700         if(m_settings->forceStereoDownmix())
 701         {
 702                 thread->addFilter(new DownmixFilter());
 703         }
 704         if((m_settings->samplingRate() > 0) && !nativeResampling)
 705         {
 706                 if(SettingsModel::samplingRates[m_settings->samplingRate()] != currentFile.formatAudioSamplerate() || currentFile.formatAudioSamplerate() == 0)
 707                 {
 708                         thread->addFilter(new ResampleFilter(SettingsModel::samplingRates[m_settings->samplingRate()]));
 709                 }
 710         }
 711         if((m_settings->toneAdjustBass() != 0) || (m_settings->toneAdjustTreble() != 0))
 712         {
 713                 thread->addFilter(new ToneAdjustFilter(m_settings->toneAdjustBass(), m_settings->toneAdjustTreble()));
 714         }
 715         if(m_settings->normalizationFilterEnabled())
 716         {
 717                 thread->addFilter(new NormalizeFilter(m_settings->normalizationFilterMaxVolume(), m_settings->normalizationFilterEqualizationMode()));
 718         }
 719         if(m_settings->renameOutputFilesEnabled() && (!m_settings->renameOutputFilesPattern().simplified().isEmpty()))
 720         {
 721                 thread->setRenamePattern(m_settings->renameOutputFilesPattern());
 722         }
 723
 724         m_threadList.append(thread);
 725         m_allJobs.append(thread->getId());
 726
 727         //Connect thread signals
 728         connect(thread, SIGNAL(finished()), this, SLOT(doneEncoding()), Qt::QueuedConnection);
 729         connect(thread, SIGNAL(processStateInitialized(QUuid,QString,QString,int)), m_progressModel, SLOT(addJob(QUuid,QString,QString,int)), Qt::QueuedConnection);
 730         connect(thread, SIGNAL(processStateChanged(QUuid,QString,int)), m_progressModel, SLOT(updateJob(QUuid,QString,int)), Qt::QueuedConnection);
 731         connect(thread, SIGNAL(processStateFinished(QUuid,QString,bool)), this, SLOT(processFinished(QUuid,QString,bool)), Qt::QueuedConnection);
 732         connect(thread, SIGNAL(processMessageLogged(QUuid,QString)), m_progressModel, SLOT(appendToLog(QUuid,QString)), Qt::QueuedConnection);
 733
 734         //Give it a go!
 735         m_runningThreads++;
 736         thread->start();
 737 }
 738
 739 AbstractEncoder *ProcessingDialog::makeEncoder(bool *nativeResampling)
 740 {
 741         AbstractEncoder *encoder =  NULL;
 742         *nativeResampling = false;
 743
 744         switch(m_settings->compressionEncoder())
 745         {
 746         case SettingsModel::MP3Encoder:
 747                 {
 748                         MP3Encoder *mp3Encoder = new MP3Encoder();
 749                         mp3Encoder->setBitrate(m_settings->compressionBitrate());
 750                         mp3Encoder->setRCMode(m_settings->compressionRCMode());
 751                         mp3Encoder->setAlgoQuality(m_settings->lameAlgoQuality());
 752                         if(m_settings->bitrateManagementEnabled())
 753                         {
 754                                 mp3Encoder->setBitrateLimits(m_settings->bitrateManagementMinRate(), m_settings->bitrateManagementMaxRate());
 755                         }
 756                         if(m_settings->samplingRate() > 0)
 757                         {
 758                                 mp3Encoder->setSamplingRate(SettingsModel::samplingRates[m_settings->samplingRate()]);
 759                                 *nativeResampling = true;
 760                         }
 761                         mp3Encoder->setChannelMode(m_settings->lameChannelMode());
 762                         mp3Encoder->setCustomParams(m_settings->customParametersLAME());
 763                         encoder = mp3Encoder;
 764                 }
 765                 break;
 766         case SettingsModel::VorbisEncoder:
 767                 {
 768                         VorbisEncoder *vorbisEncoder = new VorbisEncoder();
 769                         vorbisEncoder->setBitrate(m_settings->compressionBitrate());
 770                         vorbisEncoder->setRCMode(m_settings->compressionRCMode());
 771                         if(m_settings->bitrateManagementEnabled())
 772                         {
 773                                 vorbisEncoder->setBitrateLimits(m_settings->bitrateManagementMinRate(), m_settings->bitrateManagementMaxRate());
 774                         }
 775                         if(m_settings->samplingRate() > 0)
 776                         {
 777                                 vorbisEncoder->setSamplingRate(SettingsModel::samplingRates[m_settings->samplingRate()]);
 778                                 *nativeResampling = true;
 779                         }
 780                         vorbisEncoder->setCustomParams(m_settings->customParametersOggEnc());
 781                         encoder = vorbisEncoder;
 782                 }
 783                 break;
 784         case SettingsModel::AACEncoder:
 785                 {
 786                         if(lamexp_check_tool("qaac.exe") && lamexp_check_tool("libsoxrate.dll"))
 787                         {
 788                                 QAACEncoder *aacEncoder = new QAACEncoder();
 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 if(lamexp_check_tool("fhgaacenc.exe") && lamexp_check_tool("enc_fhgaac.dll"))
 796                         {
 797                                 FHGAACEncoder *aacEncoder = new FHGAACEncoder();
 798                                 aacEncoder->setBitrate(m_settings->compressionBitrate());
 799                                 aacEncoder->setRCMode(m_settings->compressionRCMode());
 800                                 aacEncoder->setProfile(m_settings->aacEncProfile());
 801                                 aacEncoder->setCustomParams(m_settings->customParametersAacEnc());
 802                                 encoder = aacEncoder;
 803                         }
 804                         else
 805                         {
 806                                 AACEncoder *aacEncoder = new AACEncoder();
 807                                 aacEncoder->setBitrate(m_settings->compressionBitrate());
 808                                 aacEncoder->setRCMode(m_settings->compressionRCMode());
 809                                 aacEncoder->setEnable2Pass(m_settings->neroAACEnable2Pass());
 810                                 aacEncoder->setProfile(m_settings->aacEncProfile());
 811                                 aacEncoder->setCustomParams(m_settings->customParametersAacEnc());
 812                                 encoder = aacEncoder;
 813                         }
 814                 }
 815                 break;
 816         case SettingsModel::AC3Encoder:
 817                 {
 818                         AC3Encoder *ac3Encoder = new AC3Encoder();
 819                         ac3Encoder->setBitrate(m_settings->compressionBitrate());
 820                         ac3Encoder->setRCMode(m_settings->compressionRCMode());
 821                         ac3Encoder->setCustomParams(m_settings->customParametersAften());
 822                         ac3Encoder->setAudioCodingMode(m_settings->aftenAudioCodingMode());
 823                         ac3Encoder->setDynamicRangeCompression(m_settings->aftenDynamicRangeCompression());
 824                         ac3Encoder->setExponentSearchSize(m_settings->aftenExponentSearchSize());
 825                         ac3Encoder->setFastBitAllocation(m_settings->aftenFastBitAllocation());
 826                         encoder = ac3Encoder;
 827                 }
 828                 break;
 829         case SettingsModel::FLACEncoder:
 830                 {
 831                         FLACEncoder *flacEncoder = new FLACEncoder();
 832                         flacEncoder->setBitrate(m_settings->compressionBitrate());
 833                         flacEncoder->setRCMode(m_settings->compressionRCMode());
 834                         flacEncoder->setCustomParams(m_settings->customParametersFLAC());
 835                         encoder = flacEncoder;
 836                 }
 837                 break;
 838         case SettingsModel::DCAEncoder:
 839                 {
 840                         DCAEncoder *dcaEncoder = new DCAEncoder();
 841                         dcaEncoder->setBitrate(m_settings->compressionBitrate());
 842                         dcaEncoder->setRCMode(m_settings->compressionRCMode());
 843                         encoder = dcaEncoder;
 844                 }
 845                 break;
 846         case SettingsModel::PCMEncoder:
 847                 {
 848                         WaveEncoder *waveEncoder = new WaveEncoder();
 849                         waveEncoder->setBitrate(m_settings->compressionBitrate());
 850                         waveEncoder->setRCMode(m_settings->compressionRCMode());
 851                         encoder = waveEncoder;
 852                 }
 853                 break;
 854         default:
 855                 throw "Unsupported encoder!";
 856         }
 857
 858         return encoder;
 859 }
 860
 861 void ProcessingDialog::writePlayList(void)
 862 {
 863         if(m_succeededJobs.count() <= 0 || m_allJobs.count() <= 0)
 864         {
 865                 qWarning("WritePlayList: Nothing to do!");
 866                 return;
 867         }
 868
 869         //Init local variables
 870         QStringList list;
 871         QRegExp regExp1("\\[\\d\\d\\][^/\\\\]+$", Qt::CaseInsensitive);
 872         QRegExp regExp2("\\(\\d\\d\\)[^/\\\\]+$", Qt::CaseInsensitive);
 873         QRegExp regExp3("\\d\\d[^/\\\\]+$", Qt::CaseInsensitive);
 874         bool usePrefix[3] = {true, true, true};
 875         bool useUtf8 = false;
 876         int counter = 1;
 877
 878         //Generate playlist name
 879         QString playListName = (m_metaInfo->fileAlbum().isEmpty() ? "Playlist" : m_metaInfo->fileAlbum());
 880         if(!m_metaInfo->fileArtist().isEmpty())
 881         {
 882                 playListName = QString("%1 - %2").arg(m_metaInfo->fileArtist(), playListName);
 883         }
 884
 885         //Clean playlist name
 886         playListName = lamexp_clean_filename(playListName);
 887
 888         //Create list of audio files
 889         for(int i = 0; i < m_allJobs.count(); i++)
 890         {
 891                 if(!m_succeededJobs.contains(m_allJobs.at(i))) continue;
 892                 list << QDir::toNativeSeparators(QDir(m_settings->outputDir()).relativeFilePath(m_playList.value(m_allJobs.at(i), "N/A")));
 893         }
 894
 895         //Use prefix?
 896         for(int i = 0; i < list.count(); i++)
 897         {
 898                 if(regExp1.indexIn(list.at(i)) < 0) usePrefix[0] = false;
 899                 if(regExp2.indexIn(list.at(i)) < 0) usePrefix[1] = false;
 900                 if(regExp3.indexIn(list.at(i)) < 0) usePrefix[2] = false;
 901         }
 902         if(usePrefix[0] || usePrefix[1] || usePrefix[2])
 903         {
 904                 playListName.prepend(usePrefix[0] ? "[00] " : (usePrefix[1] ? "(00) " : "00 "));
 905         }
 906
 907         //Do we need an UTF-8 playlist?
 908         for(int i = 0; i < list.count(); i++)
 909         {
 910                 if(wcscmp(QWCHAR(QString::fromLatin1(list.at(i).toLatin1().constData())), QWCHAR(list.at(i))))
 911                 {
 912                         useUtf8 = true;
 913                         break;
 914                 }
 915         }
 916
 917         //Generate playlist output file
 918         QString playListFile = QString("%1/%2.%3").arg(m_settings->outputDir(), playListName, (useUtf8 ? "m3u8" : "m3u"));
 919         while(QFileInfo(playListFile).exists())
 920         {
 921                 playListFile = QString("%1/%2 (%3).%4").arg(m_settings->outputDir(), playListName, QString::number(++counter), (useUtf8 ? "m3u8" : "m3u"));
 922         }
 923
 924         //Now write playlist to output file
 925         QFile playList(playListFile);
 926         if(playList.open(QIODevice::WriteOnly))
 927         {
 928                 if(useUtf8)
 929                 {
 930                         playList.write("\xef\xbb\xbf");
 931                 }
 932                 playList.write("#EXTM3U\r\n");
 933                 while(!list.isEmpty())
 934                 {
 935                         playList.write(useUtf8 ? list.takeFirst().toUtf8().constData() : list.takeFirst().toLatin1().constData());
 936                         playList.write("\r\n");
 937                 }
 938                 playList.close();
 939         }
 940         else
 941         {
 942                 QMessageBox::warning(this, tr("Playlist creation failed"), QString("%1<br><nobr>%2</nobr>").arg(tr("The playlist file could not be created:"), playListFile));
 943         }
 944 }
 945
 946 AudioFileModel ProcessingDialog::updateMetaInfo(const AudioFileModel &audioFile)
 947 {
 948         if(!m_settings->writeMetaTags())
 949         {
 950                 return AudioFileModel(audioFile, false);
 951         }
 952
 953         AudioFileModel result = audioFile;
 954         result.updateMetaInfo(*m_metaInfo);
 955
 956         if(m_metaInfo->filePosition() == UINT_MAX)
 957         {
 958                 result.setFilePosition(m_currentFile);
 959         }
 960
 961         return result;
 962 }
 963
 964 void ProcessingDialog::setCloseButtonEnabled(bool enabled)
 965 {
 966         HMENU hMenu = GetSystemMenu((HWND) winId(), FALSE);
 967         EnableMenuItem(hMenu, SC_CLOSE, MF_BYCOMMAND | (enabled ? MF_ENABLED : MF_GRAYED));
 968 }
 969
 970 void ProcessingDialog::systemTrayActivated(QSystemTrayIcon::ActivationReason reason)
 971 {
 972         if(reason == QSystemTrayIcon::DoubleClick)
 973         {
 974                 SetForegroundWindow(reinterpret_cast<HWND>(this->winId()));
 975         }
 976 }
 977
 978 void ProcessingDialog::cpuUsageHasChanged(const double val)
 979 {
 980
 981         this->label_cpu->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
 982         UPDATE_MIN_WIDTH(label_cpu);
 983 }
 984
 985 void ProcessingDialog::ramUsageHasChanged(const double val)
 986 {
 987
 988         this->label_ram->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
 989         UPDATE_MIN_WIDTH(label_ram);
 990 }
 991
 992 void ProcessingDialog::diskUsageHasChanged(const quint64 val)
 993 {
 994         int postfix = 0;
 995         const char *postfixStr[6] = {"B", "KB", "MB", "GB", "TB", "PB"};
 996         double space = static_cast<double>(val);
 997
 998         while((space >= 1000.0) && (postfix < 5))
 999         {
1000                 space = space / 1024.0;
1001                 postfix++;
1002         }
1003
1004         this->label_disk->setText(QString().sprintf(" %3.1f %s", space, postfixStr[postfix]));
1005         UPDATE_MIN_WIDTH(label_disk);
1006 }
1007
1008 bool ProcessingDialog::shutdownComputer(void)
1009 {
1010         const int iTimeout = m_settings->hibernateComputer() ? 10 : 30;
1011         const Qt::WindowFlags flags = Qt::WindowStaysOnTopHint | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowSystemMenuHint;
1012         const QString text = QString("%1%2%1").arg(QString().fill(' ', 18), tr("Warning: Computer will shutdown in %1 seconds..."));
1013
1014         qWarning("Initiating shutdown sequence!");
1015
1016         QProgressDialog progressDialog(text.arg(iTimeout), tr("Cancel Shutdown"), 0, iTimeout + 1, this, flags);
1017         QPushButton *cancelButton = new QPushButton(tr("Cancel Shutdown"), &progressDialog);
1018         cancelButton->setIcon(QIcon(":/icons/power_on.png"));
1019         progressDialog.setModal(true);
1020         progressDialog.setAutoClose(false);
1021         progressDialog.setAutoReset(false);
1022         progressDialog.setWindowIcon(QIcon(":/icons/power_off.png"));
1023         progressDialog.setCancelButton(cancelButton);
1024         progressDialog.show();
1025
1026         QApplication::processEvents();
1027
1028         if(m_settings->soundsEnabled())
1029         {
1030                 QApplication::setOverrideCursor(Qt::WaitCursor);
1031                 PlaySound(MAKEINTRESOURCE(IDR_WAVE_SHUTDOWN), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
1032                 QApplication::restoreOverrideCursor();
1033         }
1034
1035         QTimer timer;
1036         timer.setInterval(1000);
1037         timer.start();
1038
1039         QEventLoop eventLoop(this);
1040         connect(&timer, SIGNAL(timeout()), &eventLoop, SLOT(quit()));
1041         connect(&progressDialog, SIGNAL(canceled()), &eventLoop, SLOT(quit()));
1042
1043         for(int i = 1; i <= iTimeout; i++)
1044         {
1045                 eventLoop.exec();
1046                 if(progressDialog.wasCanceled())
1047                 {
1048                         progressDialog.close();
1049                         return false;
1050                 }
1051                 progressDialog.setValue(i+1);
1052                 progressDialog.setLabelText(text.arg(iTimeout-i));
1053                 if(iTimeout-i == 3) progressDialog.setCancelButton(NULL);
1054                 QApplication::processEvents();
1055                 PlaySound(MAKEINTRESOURCE((i < iTimeout) ? IDR_WAVE_BEEP : IDR_WAVE_BEEP_LONG), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
1056         }
1057
1058         progressDialog.close();
1059         return true;
1060 }
1061
1062 QString ProcessingDialog::time2text(const double timeVal) const
1063 {
1064         double intPart = 0;
1065         double frcPart = modf(timeVal, &intPart);
1066         int x = 0, y = 0; QString a, b;
1067
1068         QTime time = QTime().addSecs(qRound(intPart)).addMSecs(qRound(frcPart * 1000.0));
1069
1070         if(time.hour() > 0)
1071         {
1072                 x = time.hour();   a = tr("hour(s)");
1073                 y = time.minute(); b = tr("minute(s)");
1074         }
1075         else if(time.minute() > 0)
1076         {
1077                 x = time.minute(); a = tr("minute(s)");
1078                 y = time.second(); b = tr("second(s)");
1079         }
1080         else
1081         {
1082                 x = time.second(); a = tr("second(s)");
1083                 y = time.msec();   b = tr("millisecond(s)");
1084         }
1085
1086         return QString("%1 %2, %3 %4").arg(QString::number(x), a, QString::number(y), b);
1087 }
1088
1089 ////////////////////////////////////////////////////////////
1090 // HELPER FUNCTIONS
1091 ////////////////////////////////////////////////////////////
1092
1093 static int cores2instances(int cores)
1094 {
1095         //This function is a "cubic spline" with sampling points at:
1096         //(1,1); (2,2); (4,4); (8,6); (16,8); (32,11); (64,16)
1097         static const double LUT[8][5] =
1098         {
1099                 { 1.0,  0.014353554, -0.043060662, 1.028707108,  0.000000000},
1100                 { 2.0, -0.028707108,  0.215303309, 0.511979167,  0.344485294},
1101                 { 4.0,  0.010016468, -0.249379596, 2.370710784, -2.133823529},
1102                 { 8.0,  0.000282437, -0.015762868, 0.501776961,  2.850000000},
1103                 {16.0,  0.000033270, -0.003802849, 0.310416667,  3.870588235},
1104                 {32.0,  0.000006343, -0.001217831, 0.227696078,  4.752941176},
1105                 {64.0,  0.000000000,  0.000000000, 0.000000000, 16.000000000},
1106                 {DBL_MAX, 0.0, 0.0, 0.0, 0.0}
1107         };
1108
1109         double x = abs(static_cast<double>(cores)), y = 1.0;
1110
1111         for(size_t i = 0; i < 7; i++)
1112         {
1113                 if((x >= LUT[i][0]) && (x < LUT[i+1][0]))
1114                 {
1115                         y = (((((LUT[i][1] * x) + LUT[i][2]) * x) + LUT[i][3]) * x) + LUT[i][4];
1116                         break;
1117                 }
1118         }
1119
1120         return qRound(y);
1121 }