File indexing completed on 2024-09-08 12:18:07

 /*
     SPDX-FileCopyrightText: 2014 Alex Merry <alex.merry@kdemail.net>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 
 #include <stdio.h>
 
 #include <QBuffer>
 #include <QCommandLineParser>
 #include <QCoreApplication>
 #include <QDir>
 #include <QFileInfo>
 #include <QImage>
 #include <QImageReader>
 #include <QImageWriter>
 #include <QTextStream>
 
 #include "fuzzyeq.cpp"
 
 int main(int argc, char **argv)
 {
     QCoreApplication app(argc, argv);
     QCoreApplication::removeLibraryPath(QStringLiteral(PLUGIN_DIR));
     QCoreApplication::addLibraryPath(QStringLiteral(PLUGIN_DIR));
     QCoreApplication::setApplicationName(QStringLiteral("readtest"));
     QCoreApplication::setApplicationVersion(QStringLiteral("1.0.0"));
 
     QCommandLineParser parser;
     parser.setApplicationDescription(QStringLiteral("Performs basic image conversion checking."));
     parser.addHelpOption();
     parser.addVersionOption();
     parser.addPositionalArgument(QStringLiteral("format"), QStringLiteral("format to test."));
     QCommandLineOption lossless(QStringList() << QStringLiteral("l") << QStringLiteral("lossless"),
                                 QStringLiteral("Check that reading back the data gives the same image."));
     QCommandLineOption ignoreDataCheck({QStringLiteral("no-data-check")}, QStringLiteral("Don't check that write data is exactly the same."));
     QCommandLineOption fuzz(QStringList() << QStringLiteral("f") << QStringLiteral("fuzz"),
                             QStringLiteral("Allow for some deviation in ARGB data."),
                             QStringLiteral("max"));
     parser.addOption(lossless);
     parser.addOption(ignoreDataCheck);
     parser.addOption(fuzz);
 
     parser.process(app);
 
     const QStringList args = parser.positionalArguments();
     if (args.count() < 1) {
         QTextStream(stderr) << "Must provide a format\n";
         parser.showHelp(1);
     } else if (args.count() > 1) {
         QTextStream(stderr) << "Too many arguments\n";
         parser.showHelp(1);
     }
 
     uchar fuzziness = 0;
     if (parser.isSet(fuzz)) {
         bool ok;
         uint fuzzarg = parser.value(fuzz).toUInt(&ok);
         if (!ok || fuzzarg > 255) {
             QTextStream(stderr) << "Error: max fuzz argument must be a number between 0 and 255\n";
             parser.showHelp(1);
         }
         fuzziness = uchar(fuzzarg);
     }
 
     QString suffix = args.at(0);
     QByteArray format = suffix.toLatin1();
 
     QDir imgdir(QStringLiteral(IMAGEDIR));
     if (parser.isSet(ignoreDataCheck)) {
         imgdir.setNameFilters({QLatin1String("*.png")});
     } else {
         imgdir.setNameFilters(QStringList(QLatin1String("*.") + suffix));
     }
     imgdir.setFilter(QDir::Files);
 
     int passed = 0;
     int failed = 0;
 
     QTextStream(stdout) << "********* "
                         << "Starting basic write tests for " << suffix << " images *********\n";
     const QFileInfoList lstImgDir = imgdir.entryInfoList();
     for (const QFileInfo &fi : lstImgDir) {
         QString pngfile;
         if (parser.isSet(ignoreDataCheck)) {
             pngfile = fi.filePath();
         } else {
             int suffixPos = fi.filePath().count() - suffix.count();
             pngfile = fi.filePath().replace(suffixPos, suffix.count(), QStringLiteral("png"));
         }
         QString pngfilename = QFileInfo(pngfile).fileName();
 
         QImageReader pngReader(pngfile, "png");
         QImage pngImage;
         if (!pngReader.read(&pngImage)) {
             QTextStream(stdout) << "ERROR: " << fi.fileName() << ": could not load " << pngfilename << ": " << pngReader.errorString() << "\n";
             ++failed;
             continue;
         }
 
         QByteArray writtenData;
         {
             QBuffer buffer(&writtenData);
             QImageWriter imgWriter(&buffer, format.constData());
             if (parser.isSet(lossless)) {
                 imgWriter.setQuality(100);
             }
             if (!imgWriter.write(pngImage)) {
                 QTextStream(stdout) << "FAIL : " << fi.fileName() << ": failed to write image data\n";
                 ++failed;
                 continue;
             }
         }
 
         if (!parser.isSet(ignoreDataCheck)) {
             QFile expFile(fi.filePath());
             if (!expFile.open(QIODevice::ReadOnly)) {
                 QTextStream(stdout) << "ERROR: " << fi.fileName() << ": could not open " << fi.fileName() << ": " << expFile.errorString() << "\n";
                 ++failed;
                 continue;
             }
             QByteArray expData = expFile.readAll();
             if (expData.isEmpty()) {
                 // check if there was actually anything to read
                 expFile.reset();
                 char buf[1];
                 qint64 result = expFile.read(buf, 1);
                 if (result < 0) {
                     QTextStream(stdout) << "ERROR: " << fi.fileName() << ": could not load " << fi.fileName() << ": " << expFile.errorString() << "\n";
                     ++failed;
                     continue;
                 }
             }
 
             if (expData != writtenData) {
                 QTextStream(stdout) << "FAIL : " << fi.fileName() << ": written data differs from " << fi.fileName() << "\n";
                 ++failed;
                 continue;
             }
         }
 
         QImage reReadImage;
         {
             QBuffer buffer(&writtenData);
             QImageReader imgReader(&buffer, format.constData());
             if (!imgReader.read(&reReadImage)) {
                 QTextStream(stdout) << "FAIL : " << fi.fileName() << ": could not read back the written data\n";
                 ++failed;
                 continue;
             }
             reReadImage = reReadImage.convertToFormat(pngImage.format());
         }
 
         if (parser.isSet(lossless)) {
             if (!fuzzyeq(pngImage, reReadImage, fuzziness)) {
                 QTextStream(stdout) << "FAIL : " << fi.fileName() << ": re-reading the data resulted in a different image\n";
                 if (pngImage.size() == reReadImage.size()) {
                     for (int i = 0; i < pngImage.width(); ++i) {
                         for (int j = 0; j < pngImage.height(); ++j) {
                             if (pngImage.pixel(i, j) != reReadImage.pixel(i, j)) {
                                 QTextStream(stdout) << "Pixel is different " << i << ',' << j << ' ' << pngImage.pixel(i, j) << ' ' << reReadImage.pixel(i, j)
                                                     << '\n';
                             }
                         }
                     }
                 }
                 ++failed;
                 continue;
             }
         }
 
         QTextStream(stdout) << "PASS : " << fi.fileName() << "\n";
         ++passed;
     }
 
     QTextStream(stdout) << "Totals: " << passed << " passed, " << failed << " failed\n";
     QTextStream(stdout) << "********* "
                         << "Finished basic write tests for " << suffix << " images *********\n";
 
     return failed == 0 ? 0 : 1;
 }