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Optimization (multithreading)

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This commit is contained in:
Jakub Melka
2021-02-13 17:09:57 +01:00
parent 14cd4c3dd0
commit f020098435
5 changed files with 211 additions and 39 deletions
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9
Pdf4QtViewerPlugins/OutputPreviewPlugin/outputpreviewdialog.cpp
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@ -71,10 +71,17 @@ void OutputPreviewDialog::updateImage()
ui->imageLabel->setPixmap(QPixmap());
}
pdf::PDFTransparencyRendererSettings settings;
// Jakub Melka: debug is very slow, use multithreading
#ifdef QT_DEBUG
settings.flags.setFlag(pdf::PDFTransparencyRendererSettings::MultithreadedPathSampler, true);
#endif
QMatrix pagePointToDevicePoint = pdf::PDFRenderer::createPagePointToDevicePointMatrix(page, QRect(QPoint(0, 0), imageSize));
pdf::PDFDrawWidgetProxy* proxy = m_widget->getDrawWidgetProxy();
pdf::PDFCMSPointer cms = proxy->getCMSManager()->getCurrentCMS();
pdf::PDFTransparencyRenderer renderer(page, m_document, proxy->getFontCache(), cms.data(), proxy->getOptionalContentActivity(), &m_inkMapper, pagePointToDevicePoint);
pdf::PDFTransparencyRenderer renderer(page, m_document, proxy->getFontCache(), cms.data(), proxy->getOptionalContentActivity(), &m_inkMapper, settings, pagePointToDevicePoint);
renderer.beginPaint(imageSize);
renderer.processContents();