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PDF4QT/PdfTool/pdftoolrender.cpp

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// Copyright (C) 2020-2021 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "pdftoolrender.h"
#include "pdffont.h"
#include "pdfconstants.h"
#include <QColorSpace>
#include <QElapsedTimer>
namespace pdftool
{
static PDFToolRender s_toolRenderApplication;
static PDFToolBenchmark s_toolBenchmarkApplication;
QString PDFToolRender::getStandardString(PDFToolAbstractApplication::StandardString standardString) const
{
switch (standardString)
{
case Command:
return "render";
case Name:
return PDFToolTranslationContext::tr("Render document");
case Description:
return PDFToolTranslationContext::tr("Render selected pages of document into image files.");
default:
Q_ASSERT(false);
break;
}
return QString();
}
PDFToolAbstractApplication::Options PDFToolRender::getOptionsFlags() const
{
return ConsoleFormat | OpenDocument | PageSelector | ImageWriterSettings | ImageExportSettingsFiles | ImageExportSettingsResolution | ColorManagementSystem | RenderFlags;
}
void PDFToolRender::finish(const PDFToolOptions& options)
{
PDFOutputFormatter formatter(options.outputStyle);
formatter.beginDocument("render", PDFToolTranslationContext::tr("Render document %1").arg(options.document));
formatter.endl();
writeStatistics(formatter);
if (options.renderShowPageStatistics)
{
writePageStatistics(formatter);
}
writeErrors(formatter);
formatter.endDocument();
PDFConsole::writeText(formatter.getString(), options.outputCodec);
}
void PDFToolRender::onPageRendered(const PDFToolOptions& options, pdf::PDFRenderedPageImage& renderedPageImage)
{
writePageInfoStatistics(renderedPageImage);
QString fileName = options.imageExportSettings.getOutputFileName(renderedPageImage.pageIndex, options.imageWriterSettings.getCurrentFormat());
QElapsedTimer imageWriterTimer;
imageWriterTimer.start();
QImageWriter imageWriter(fileName, options.imageWriterSettings.getCurrentFormat());
imageWriter.setSubType(options.imageWriterSettings.getCurrentSubtype());
imageWriter.setCompression(options.imageWriterSettings.getCompression());
imageWriter.setQuality(options.imageWriterSettings.getQuality());
imageWriter.setOptimizedWrite(options.imageWriterSettings.hasOptimizedWrite());
imageWriter.setProgressiveScanWrite(options.imageWriterSettings.hasProgressiveScanWrite());
if (!imageWriter.write(renderedPageImage.pageImage))
{
m_pageInfo[renderedPageImage.pageIndex].errors.emplace_back(pdf::PDFRenderError(pdf::RenderErrorType::Error, PDFToolTranslationContext::tr("Cannot write page image to file '%1', because: %2.").arg(fileName).arg(imageWriter.errorString())));
}
m_pageInfo[renderedPageImage.pageIndex].pageWriteTime = imageWriterTimer.elapsed();
}
QString PDFToolBenchmark::getStandardString(PDFToolAbstractApplication::StandardString standardString) const
{
switch (standardString)
{
case Command:
return "benchmark";
case Name:
return PDFToolTranslationContext::tr("Benchmark rendering");
case Description:
return PDFToolTranslationContext::tr("Benchmark page rendering (measure time, detect errors).");
default:
Q_ASSERT(false);
break;
}
return QString();
}
PDFToolAbstractApplication::Options PDFToolBenchmark::getOptionsFlags() const
{
return ConsoleFormat | OpenDocument | PageSelector | ImageExportSettingsResolution | ColorManagementSystem | RenderFlags;
}
void PDFToolBenchmark::finish(const PDFToolOptions& options)
{
PDFOutputFormatter formatter(options.outputStyle);
formatter.beginDocument("benchmark", PDFToolTranslationContext::tr("Benchmark rendering of document %1").arg(options.document));
formatter.endl();
writeStatistics(formatter);
if (options.renderShowPageStatistics)
{
writePageStatistics(formatter);
}
writeErrors(formatter);
formatter.endDocument();
PDFConsole::writeText(formatter.getString(), options.outputCodec);
}
void PDFToolBenchmark::onPageRendered(const PDFToolOptions& options, pdf::PDFRenderedPageImage& renderedPageImage)
{
Q_UNUSED(options);
writePageInfoStatistics(renderedPageImage);
}
int PDFToolRenderBase::execute(const PDFToolOptions& options)
{
pdf::PDFDocument document;
QByteArray sourceData;
if (!readDocument(options, document, &sourceData, false))
{
return ErrorDocumentReading;
}
QString parseError;
std::vector<pdf::PDFInteger> pageIndices = options.getPageRange(document.getCatalog()->getPageCount(), parseError, true);
if (!parseError.isEmpty())
{
PDFConsole::writeError(parseError, options.outputCodec);
return ErrorInvalidArguments;
}
QString errorMessage;
Options optionFlags = getOptionsFlags();
if (!options.imageExportSettings.validate(&errorMessage, false, optionFlags.testFlag(ImageExportSettingsFiles), optionFlags.testFlag(ImageExportSettingsResolution)))
{
PDFConsole::writeError(errorMessage, options.outputCodec);
return ErrorInvalidArguments;
}
// We are ready to render the document
pdf::PDFOptionalContentActivity optionalContentActivity(&document, pdf::OCUsage::Export, nullptr);
pdf::PDFCMSManager cmsManager(nullptr);
cmsManager.setDocument(&document);
cmsManager.setSettings(options.cmsSettings);
pdf::PDFMeshQualitySettings meshQualitySettings;
pdf::PDFFontCache fontCache(pdf::DEFAULT_FONT_CACHE_LIMIT, pdf::DEFAULT_REALIZED_FONT_CACHE_LIMIT);
pdf::PDFModifiedDocument md(&document, &optionalContentActivity);
fontCache.setDocument(md);
fontCache.setCacheShrinkEnabled(nullptr, false);
m_pageInfo.resize(document.getCatalog()->getPageCount());
pdf::PDFRasterizerPool rasterizerPool(&document, &fontCache, &cmsManager,
&optionalContentActivity, options.renderFeatures, meshQualitySettings,
pdf::PDFRasterizerPool::getCorrectedRasterizerCount(options.renderRasterizerCount),
options.renderUseSoftwareRendering ? pdf::RendererEngine::QPainter : pdf::RendererEngine::Blend2D_SingleThread, nullptr);
auto onRenderError = [this](pdf::PDFInteger pageIndex, pdf::PDFRenderError error)
{
if (pageIndex != pdf::PDFCatalog::INVALID_PAGE_INDEX)
{
m_pageInfo[pageIndex].errors.emplace_back(qMove(error));
}
};
QObject holder;
QObject::connect(&rasterizerPool, &pdf::PDFRasterizerPool::renderError, &holder, onRenderError, Qt::DirectConnection);
auto imageSizeGetter = [&options](const pdf::PDFPage* page) -> QSize
{
Q_ASSERT(page);
switch (options.imageExportSettings.getResolutionMode())
{
case pdf::PDFPageImageExportSettings::ResolutionMode::DPI:
{
QSizeF size = page->getRotatedMediaBox().size() * pdf::PDF_POINT_TO_INCH * options.imageExportSettings.getDpiResolution();
return size.toSize();
}
case pdf::PDFPageImageExportSettings::ResolutionMode::Pixels:
{
int pixelResolution = options.imageExportSettings.getPixelResolution();
QSizeF size = page->getRotatedMediaBox().size().scaled(pixelResolution, pixelResolution, Qt::KeepAspectRatio);
return size.toSize();
}
default:
{
Q_ASSERT(false);
break;
}
}
return QSize();
};
QElapsedTimer timer;
timer.start();
rasterizerPool.render(pageIndices, imageSizeGetter, std::bind(&PDFToolRenderBase::onPageRendered, this, options, std::placeholders::_1), nullptr);
m_wallTime = timer.elapsed();
fontCache.setCacheShrinkEnabled(nullptr, true);
finish(options);
return ExitSuccess;
}
void PDFToolRenderBase::writePageInfoStatistics(const pdf::PDFRenderedPageImage& renderedPageImage)
{
PageInfo& info = m_pageInfo[renderedPageImage.pageIndex];
info.isRendered = true;
info.pageCompileTime = renderedPageImage.pageCompileTime;
info.pageWaitTime = renderedPageImage.pageWaitTime;
info.pageRenderTime = renderedPageImage.pageRenderTime;
info.pageTotalTime = renderedPageImage.pageTotalTime;
info.pageIndex = renderedPageImage.pageIndex;
}
void PDFToolRenderBase::writeStatistics(PDFOutputFormatter& formatter)
{
// Jakub Melka: Write overall statistics
qint64 pagesRendered = 0;
qint64 pageCompileTime = 0;
qint64 pageWaitTime = 0;
qint64 pageRenderTime = 0;
qint64 pageTotalTime = 0;
qint64 pageWriteTime = 0;
for (const PageInfo& info : m_pageInfo)
{
if (!info.isRendered)
{
continue;
}
++pagesRendered;
pageCompileTime += info.pageCompileTime;
pageWaitTime += info.pageWaitTime;
pageRenderTime += info.pageRenderTime;
pageTotalTime += info.pageTotalTime + info.pageWriteTime;
pageWriteTime += info.pageWriteTime;
}
if (pagesRendered > 0 && pageTotalTime > 0 && m_wallTime > 0)
{
QLocale locale;
double renderingSpeedPerCore = double(pagesRendered) / (double(pageTotalTime) / 1000.0);
double renderingSpeedWallTime = double(pagesRendered) / (double(m_wallTime) / 1000.0);
double compileRatio = 100.0 * double(pageCompileTime) / double(pageTotalTime);
double waitRatio = 100.0 * double(pageWaitTime) / double(pageTotalTime);
double renderRatio = 100.0 * double(pageRenderTime) / double(pageTotalTime);
double writeRatio = 100.0 * double(pageWriteTime) / double(pageTotalTime);
formatter.beginTable("statistics", PDFToolTranslationContext::tr("Statistics"));
formatter.beginTableHeaderRow("header");
formatter.writeTableHeaderColumn("description", PDFToolTranslationContext::tr("Description"), Qt::AlignLeft);
formatter.writeTableHeaderColumn("value", PDFToolTranslationContext::tr("Value"), Qt::AlignLeft);
formatter.writeTableHeaderColumn("unit", PDFToolTranslationContext::tr("Unit"), Qt::AlignLeft);
formatter.endTableHeaderRow();
auto writeValue = [&formatter](QString name, QString description, QString value, QString unit)
{
formatter.beginTableRow(name);
formatter.writeTableColumn("description", description);
formatter.writeTableColumn("value", value, Qt::AlignRight);
formatter.writeTableColumn("unit", unit);
formatter.endTableRow();
};
writeValue("pages-rendered", PDFToolTranslationContext::tr("Pages rendered"), locale.toString(pagesRendered), PDFToolTranslationContext::tr("-"));
writeValue("compile-time", PDFToolTranslationContext::tr("Total compile time"), locale.toString(pageCompileTime), PDFToolTranslationContext::tr("msec"));
writeValue("render-time", PDFToolTranslationContext::tr("Total render time"), locale.toString(pageRenderTime), PDFToolTranslationContext::tr("msec"));
writeValue("wait-time", PDFToolTranslationContext::tr("Total wait time"), locale.toString(pageWaitTime), PDFToolTranslationContext::tr("msec"));
writeValue("write-time", PDFToolTranslationContext::tr("Total write time"), locale.toString(pageWriteTime), PDFToolTranslationContext::tr("msec"));
writeValue("total-time", PDFToolTranslationContext::tr("Total time"), locale.toString(pageTotalTime), PDFToolTranslationContext::tr("msec"));
writeValue("wall-time", PDFToolTranslationContext::tr("Wall time"), locale.toString(m_wallTime), PDFToolTranslationContext::tr("msec"));
writeValue("pages-per-second-core", PDFToolTranslationContext::tr("Rendering speed (per core)"), locale.toString(renderingSpeedPerCore, 'f', 3), PDFToolTranslationContext::tr("pages / sec (one core)"));
writeValue("pages-per-second-wall", PDFToolTranslationContext::tr("Rendering speed (wall time)"), locale.toString(renderingSpeedWallTime, 'f', 3), PDFToolTranslationContext::tr("pages / sec"));
writeValue("compile-time-ratio", PDFToolTranslationContext::tr("Compile time ratio"), locale.toString(compileRatio, 'f', 2), PDFToolTranslationContext::tr("%"));
writeValue("render-time-ratio", PDFToolTranslationContext::tr("Render time ratio"), locale.toString(renderRatio, 'f', 2), PDFToolTranslationContext::tr("%"));
writeValue("wait-time-ratio", PDFToolTranslationContext::tr("Wait time ratio"), locale.toString(waitRatio, 'f', 2), PDFToolTranslationContext::tr("%"));
writeValue("write-time-ratio", PDFToolTranslationContext::tr("Write time ratio"), locale.toString(writeRatio, 'f', 2), PDFToolTranslationContext::tr("%"));
formatter.endTable();
formatter.endl();
}
}
void PDFToolRenderBase::writePageStatistics(PDFOutputFormatter& formatter)
{
formatter.beginTable("page-statistics", PDFToolTranslationContext::tr("Page Statistics"));
formatter.beginTableHeaderRow("header");
formatter.writeTableHeaderColumn("page-no", PDFToolTranslationContext::tr("Page No."), Qt::AlignLeft);
formatter.writeTableHeaderColumn("compile-time", PDFToolTranslationContext::tr("Compile Time [msec]"), Qt::AlignLeft);
formatter.writeTableHeaderColumn("render-time", PDFToolTranslationContext::tr("Render Time [msec]"), Qt::AlignLeft);
formatter.writeTableHeaderColumn("wait-time", PDFToolTranslationContext::tr("Wait Time [msec]"), Qt::AlignLeft);
formatter.writeTableHeaderColumn("write-time", PDFToolTranslationContext::tr("Write Time [msec]"), Qt::AlignLeft);
formatter.writeTableHeaderColumn("total-time", PDFToolTranslationContext::tr("Total Time [msec]"), Qt::AlignLeft);
formatter.endTableHeaderRow();
QLocale locale;
for (const PageInfo& info : m_pageInfo)
{
if (!info.isRendered)
{
continue;
}
formatter.beginTableRow("page", info.pageIndex + 1);
formatter.writeTableColumn("page-no", locale.toString(info.pageIndex + 1), Qt::AlignRight);
formatter.writeTableColumn("compile-time", locale.toString(info.pageCompileTime), Qt::AlignRight);
formatter.writeTableColumn("render-time", locale.toString(info.pageRenderTime), Qt::AlignRight);
formatter.writeTableColumn("wait-time", locale.toString(info.pageWaitTime), Qt::AlignRight);
formatter.writeTableColumn("write-time", locale.toString(info.pageWriteTime), Qt::AlignRight);
formatter.writeTableColumn("total-time", locale.toString(info.pageTotalTime), Qt::AlignRight);
formatter.endTableRow();
}
formatter.endTable();
formatter.endl();
}
void PDFToolRenderBase::writeErrors(PDFOutputFormatter& formatter)
{
formatter.beginTable("rendering-errors", PDFToolTranslationContext::tr("Rendering Errors"));
formatter.beginTableHeaderRow("header");
formatter.writeTableHeaderColumn("page-no", PDFToolTranslationContext::tr("Page No."), Qt::AlignLeft);
formatter.writeTableHeaderColumn("type", PDFToolTranslationContext::tr("Type"), Qt::AlignLeft);
formatter.writeTableHeaderColumn("message", PDFToolTranslationContext::tr("Message"), Qt::AlignLeft);
formatter.endTableHeaderRow();
QLocale locale;
for (const PageInfo& info : m_pageInfo)
{
if (!info.isRendered)
{
continue;
}
for (const pdf::PDFRenderError& error : info.errors)
{
QString type;
switch (error.type)
{
case pdf::RenderErrorType::Error:
type = PDFToolTranslationContext::tr("Error");
break;
case pdf::RenderErrorType::Warning:
type = PDFToolTranslationContext::tr("Warning");
break;
case pdf::RenderErrorType::NotImplemented:
type = PDFToolTranslationContext::tr("Not implemented");
break;
case pdf::RenderErrorType::NotSupported:
type = PDFToolTranslationContext::tr("Not supported");
break;
case pdf::RenderErrorType::Information:
type = PDFToolTranslationContext::tr("Information");
break;
default:
Q_ASSERT(false);
break;
}
formatter.beginTableRow("page", info.pageIndex + 1);
formatter.writeTableColumn("page-no", locale.toString(info.pageIndex + 1), Qt::AlignRight);
formatter.writeTableColumn("type", type, Qt::AlignLeft);
formatter.writeTableColumn("message", error.message, Qt::AlignLeft);
formatter.endTableRow();
}
}
formatter.endTable();
formatter.endl();
}
} // namespace pdftool
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