File indexing completed on 2024-06-16 04:13:49

 /*
  *  SPDX-FileCopyrightText: 2015 Dmitry Kazakov <dimula73@gmail.com>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "kis_asl_reader.h"
 
 #include "kis_dom_utils.h"
 
 #include <stdexcept>
 #include <string>
 
 #include <QBuffer>
 #include <QDomDocument>
 #include <QIODevice>
 
 #include "compression.h"
 #include "kis_offset_on_exit_verifier.h"
 #include "psd.h"
 #include "psd_utils.h"
 
 #include "kis_asl_reader_utils.h"
 #include "kis_asl_writer_utils.h"
 
 namespace Private
 {
 /**
  * Numerical fetch functions
  *
  * We read numbers and convert them to strings to be able to store
  * them in XML.
  */
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 QString readDoubleAsString(QIODevice &device)
 {
     double value = 0.0;
     SAFE_READ_EX(byteOrder, device, value);
 
     return KisDomUtils::toString(value);
 }
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 QString readIntAsString(QIODevice &device)
 {
     quint32 value = 0.0;
     SAFE_READ_EX(byteOrder, device, value);
 
     return KisDomUtils::toString(value);
 }
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 QString readBoolAsString(QIODevice &device)
 {
     quint8 value = 0.0;
     SAFE_READ_EX(byteOrder, device, value);
 
     return KisDomUtils::toString(value);
 }
 
 /**
  * XML generation functions
  *
  * Add a node and fill the corresponding attributes
  */
 
 QDomElement appendXMLNodeCommon(const QString &key, const QString &value, const QString &type, QDomElement *parent, QDomDocument *doc)
 {
     QDomElement el = doc->createElement("node");
     if (!key.isEmpty()) {
         el.setAttribute("key", key);
     }
     el.setAttribute("type", type);
     el.setAttribute("value", value);
     parent->appendChild(el);
 
     return el;
 }
 
 QDomElement appendXMLNodeCommonNoValue(const QString &key, const QString &type, QDomElement *parent, QDomDocument *doc)
 {
     QDomElement el = doc->createElement("node");
     if (!key.isEmpty()) {
         el.setAttribute("key", key);
     }
     el.setAttribute("type", type);
     parent->appendChild(el);
 
     return el;
 }
 
 void appendIntegerXMLNode(const QString &key, const QString &value, QDomElement *parent, QDomDocument *doc)
 {
     appendXMLNodeCommon(key, value, "Integer", parent, doc);
 }
 
 void appendDoubleXMLNode(const QString &key, const QString &value, QDomElement *parent, QDomDocument *doc)
 {
     appendXMLNodeCommon(key, value, "Double", parent, doc);
 }
 
 void appendTextXMLNode(const QString &key, const QString &value, QDomElement *parent, QDomDocument *doc)
 {
     appendXMLNodeCommon(key, value, "Text", parent, doc);
 }
 
 void appendPointXMLNode(const QString &key, const QPointF &pt, QDomElement *parent, QDomDocument *doc)
 {
     QDomElement el = appendXMLNodeCommonNoValue(key, "Descriptor", parent, doc);
     el.setAttribute("classId", "CrPt");
     el.setAttribute("name", "");
 
     appendDoubleXMLNode("Hrzn", KisDomUtils::toString(pt.x()), &el, doc);
     appendDoubleXMLNode("Vrtc", KisDomUtils::toString(pt.x()), &el, doc);
 }
 
 /**
  * ASL -> XML parsing functions
  */
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 void readDescriptor(QIODevice &device, const QString &key, QDomElement *parent, QDomDocument *doc);
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 void readChildObject(QIODevice &device, QDomElement *parent, QDomDocument *doc, bool skipKey = false)
 {
     using namespace KisAslReaderUtils;
 
     QString key;
 
     if (!skipKey) {
         key = readVarString<byteOrder>(device);
     }
 
     QString OSType = readFixedString<byteOrder>(device);
 
     // dbgKrita << "Child" << ppVar(key) << ppVar(OSType);
 
     if (OSType == "obj ") {
         throw KisAslReaderUtils::ASLParseException("OSType 'obj' not implemented");
 
     } else if (OSType == "Objc" || OSType == "GlbO") {
         readDescriptor<byteOrder>(device, key, parent, doc);
 
     } else if (OSType == "VlLs") {
         quint32 numItems = GARBAGE_VALUE_MARK;
         SAFE_READ_EX(byteOrder, device, numItems);
 
         QDomElement el = appendXMLNodeCommonNoValue(key, "List", parent, doc);
         for (quint32 i = 0; i < numItems; i++) {
             readChildObject<byteOrder>(device, &el, doc, true);
         }
 
     } else if (OSType == "doub") {
         appendDoubleXMLNode(key, readDoubleAsString<byteOrder>(device), parent, doc);
 
     } else if (OSType == "UntF") {
         const QString unit = readFixedString<byteOrder>(device);
         const QString value = readDoubleAsString<byteOrder>(device);
 
         QDomElement el = appendXMLNodeCommon(key, value, "UnitFloat", parent, doc);
         el.setAttribute("unit", unit);
 
     } else if (OSType == "TEXT") {
         QString unicodeString = readUnicodeString<byteOrder>(device);
         appendTextXMLNode(key, unicodeString, parent, doc);
 
     } else if (OSType == "enum") {
         const QString typeId = readVarString<byteOrder>(device);
         const QString value = readVarString<byteOrder>(device);
 
         QDomElement el = appendXMLNodeCommon(key, value, "Enum", parent, doc);
         el.setAttribute("typeId", typeId);
 
     } else if (OSType == "long") {
         appendIntegerXMLNode(key, readIntAsString<byteOrder>(device), parent, doc);
 
     } else if (OSType == "bool") {
         const QString value = readBoolAsString<byteOrder>(device);
         appendXMLNodeCommon(key, value, "Boolean", parent, doc);
 
     } else if (OSType == "type") {
         throw KisAslReaderUtils::ASLParseException("OSType 'type' not implemented");
     } else if (OSType == "GlbC") {
         throw KisAslReaderUtils::ASLParseException("OSType 'GlbC' not implemented");
     } else if (OSType == "alis") {
         throw KisAslReaderUtils::ASLParseException("OSType 'alis' not implemented");
     } else if (OSType == "tdta") {
         throw KisAslReaderUtils::ASLParseException("OSType 'tdta' not implemented");
     }
 }
 
 template<psd_byte_order byteOrder>
 void readDescriptor(QIODevice &device, const QString &key, QDomElement *parent, QDomDocument *doc)
 {
     using namespace KisAslReaderUtils;
 
     QString name = readUnicodeString(device);
     QString classId = readVarString(device);
 
     quint32 numChildren = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, numChildren);
 
     QDomElement el = appendXMLNodeCommonNoValue(key, "Descriptor", parent, doc);
     el.setAttribute("classId", classId);
     el.setAttribute("name", name);
 
     // dbgKrita << "Descriptor" << ppVar(key) << ppVar(classId) << ppVar(numChildren);
 
     for (quint32 i = 0; i < numChildren; i++) {
         readChildObject<byteOrder>(device, &el, doc);
     }
 }
 
 template<psd_byte_order byteOrder>
 QImage readVirtualArrayList(QIODevice &device, int numPlanes, const QVector<QRgb> &palette)
 {
     using namespace KisAslReaderUtils;
 
     quint32 arrayVersion = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, arrayVersion);
 
     if (arrayVersion != 3) {
         throw ASLParseException("VAList version is not '3'!");
     }
 
     quint32 arrayLength = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, arrayLength);
 
     SETUP_OFFSET_VERIFIER(vaEndVerifier, device, arrayLength, 100);
 
     quint32 x0 = 0;
     quint32 y0 = 0;
     quint32 x1 = 0;
     quint32 y1 = 0;
     SAFE_READ_EX(byteOrder, device, y0);
     SAFE_READ_EX(byteOrder, device, x0);
     SAFE_READ_EX(byteOrder, device, y1);
     SAFE_READ_EX(byteOrder, device, x1);
     QRect arrayRect(x0, y0, x1 - x0, y1 - y0);
 
     quint32 numberOfChannels = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, numberOfChannels);
 
     if (numberOfChannels != 24) {
         throw ASLParseException("VAList: Krita doesn't support ASL files with 'numberOfChannels' flag not equal to 24 (it is not documented)!");
     }
 
     // dbgKrita << ppVar(arrayVersion);
     // dbgKrita << ppVar(arrayLength);
     // dbgKrita << ppVar(arrayRect);
     // dbgKrita << ppVar(numberOfChannels);
 
     if (numPlanes != 1 && numPlanes != 3) {
         throw ASLParseException("VAList: unsupported number of planes!");
     }
 
     QVector<QByteArray> dataPlanes;
     dataPlanes.resize(3);
 
     quint32 pixelDepth1 = GARBAGE_VALUE_MARK;
 
     for (int i = 0; i < numPlanes; i++) {
         quint32 arrayWritten = GARBAGE_VALUE_MARK;
         if (!psdread<byteOrder>(device, arrayWritten) || !arrayWritten) {
             throw ASLParseException("VAList plane has not-written flag set!");
         }
 
         quint32 arrayPlaneLength = GARBAGE_VALUE_MARK;
         if (!psdread<byteOrder>(device, arrayPlaneLength) || !arrayPlaneLength) {
             throw ASLParseException("VAList has plane length set to zero!");
         }
 
         SETUP_OFFSET_VERIFIER(planeEndVerifier, device, arrayPlaneLength, 0);
         qint64 nextPos = device.pos() + arrayPlaneLength;
 
         SAFE_READ_EX(byteOrder, device, pixelDepth1);
 
         quint32 x0 = 0;
         quint32 y0 = 0;
         quint32 x1 = 0;
         quint32 y1 = 0;
         SAFE_READ_EX(byteOrder, device, y0);
         SAFE_READ_EX(byteOrder, device, x0);
         SAFE_READ_EX(byteOrder, device, y1);
         SAFE_READ_EX(byteOrder, device, x1);
         QRect planeRect(x0, y0, x1 - x0, y1 - y0);
 
         if (planeRect != arrayRect) {
             throw ASLParseException("VAList: planes are not uniform. Not supported yet!");
         }
 
         quint16 pixelDepth2 = GARBAGE_VALUE_MARK;
         SAFE_READ_EX(byteOrder, device, pixelDepth2);
 
         quint8 useCompression = 9;
         SAFE_READ_EX(byteOrder, device, useCompression);
 
         // dbgKrita << "plane index:" << ppVar(i);
         // dbgKrita << ppVar(arrayWritten);
         // dbgKrita << ppVar(arrayPlaneLength);
         // dbgKrita << ppVar(pixelDepth1);
         // dbgKrita << ppVar(planeRect);
         // dbgKrita << ppVar(pixelDepth2);
         // dbgKrita << ppVar(useCompression);
 
         if (pixelDepth1 != pixelDepth2) {
             throw ASLParseException("VAList: two pixel depths of the plane are not equal (it is not documented)!");
         }
 
         if (pixelDepth1 != 1 && pixelDepth1 != 8 && pixelDepth1 != 16) {
             throw ASLParseException(QString("VAList: unsupported pixel depth: %1!").arg(pixelDepth1));
         }
 
         const int channelSize = (pixelDepth1 == 1 || pixelDepth1 == 8) ? 1 : 2;
 
         const int dataLength = planeRect.width() * planeRect.height() * channelSize;
 
         if (useCompression == psd_compression_type::Uncompressed) {
             dataPlanes[i] = device.read(arrayPlaneLength - 23);
         } else if (useCompression == psd_compression_type::RLE) {
             const int numRows = planeRect.height();
 
             QVector<quint16> rowSizes;
             rowSizes.resize(numRows);
 
             for (int row = 0; row < numRows; row++) {
                 quint16 rowSize = GARBAGE_VALUE_MARK;
                 SAFE_READ_EX(byteOrder, device, rowSize);
                 rowSizes[row] = rowSize;
             }
 
             for (int row = 0; row < numRows; row++) {
                 const quint16 rowSize = rowSizes[row];
 
                 QByteArray compressedData = device.read(rowSize);
 
                 if (compressedData.size() != rowSize) {
                     throw ASLParseException("VAList: failed to read compressed data!");
                 }
 
                 dbgFile << "Going to decompress the pattern";
 
                 QByteArray uncompressedData =
                     Compression::uncompress(planeRect.width() * channelSize, compressedData, psd_compression_type::RLE);
 
                 if (uncompressedData.size() != planeRect.width()) {
                     throw ASLParseException("VAList: failed to decompress data!");
                 }
 
                 dataPlanes[i].append(uncompressedData);
             }
         } else if (useCompression == psd_compression_type::ZIP) {
             QByteArray compressedBytes = device.read(arrayPlaneLength - 23);
             dataPlanes[i] = Compression::uncompress(dataLength, compressedBytes, psd_compression_type::ZIP);
         } else {
             throw ASLParseException("VAList: ZIP compression is not implemented yet!");
         }
 
         if (dataPlanes[i].size() != dataLength) {
             throw ASLParseException("VAList: failed to read/uncompress data plane!");
         }
 
         if (device.pos() != nextPos) {
             warnFile << "VAList: Data is left out from reading"
                      << "(" << device.pos() << ")";
         }
         device.seek(nextPos);
     }
 
     QImage::Format format{};
     
     if (pixelDepth1 == 1 || !palette.isEmpty()) {
         if (palette.isEmpty()) {
             format = QImage::Format_Grayscale8;
         } else {
             format = QImage::Format_Indexed8;
         }
     } else if (pixelDepth1 == 8) {
         format = QImage::Format_ARGB32;
     } else {
 #if QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
         format = QImage::Format_RGBA64;
 #else
         throw ASLParseException("Qt does not support RGBA64!");
 #endif
     }
 
     QImage image(arrayRect.size(), format);
 
     if (format == QImage::Format_Indexed8) {
         image.setColorTable(palette);
     }
     dbgFile << "Loading the data into an image of format" << format << arrayRect << "(" << device.pos() << ")";
 
     const int dataLength = arrayRect.width() * arrayRect.height();
 
     if (format == QImage::Format_ARGB32) {
         quint8 *dstPtr = image.bits();
 
         for (int i = 0; i < dataLength; i++) {
             for (int j = 2; j >= 0; j--) {
                 const int plane = qMin(numPlanes, j);
                 *dstPtr++ = dataPlanes[plane][i];
             }
             *dstPtr++ = 0xFF;
         }
     } else if (format == QImage::Format_Indexed8 || format == QImage::Format_Grayscale8) {
         const auto *dataPlane = reinterpret_cast<const quint8 *>(dataPlanes[0].constData());
 
         for (int x = 0; x < arrayRect.height(); x++) {
             quint8 *dstPtr = image.scanLine(x);
 
             for (int y = 0; y < arrayRect.width(); y++) {
                 *dstPtr++ = dataPlane[x * arrayRect.width() + y];
             }
         }
     } else {
         quint16 *dstPtr = reinterpret_cast<quint16 *>(image.bits());
 
         for (int i = 0; i < dataLength; i++) {
             for (int j = 0; j <= 2; j++) {
                 const int plane = qMin(numPlanes, j);
                 const quint16 *dataPlane = reinterpret_cast<const quint16 *>(dataPlanes[plane].constData());
                 *dstPtr++ = qFromBigEndian(dataPlane[i]);
             }
             *dstPtr++ = 0xFFFF;
         }
     }
 
     // static int i = -1; i++;
     // QString filename = QString("pattern_image_%1.png").arg(i);
     // dbgKrita << "### dumping pattern image" << ppVar(filename);
     // image.save(filename);
 
     return image.convertToFormat(QImage::Format_ARGB32, Qt::AutoColor | Qt::PreferDither);
 }
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 qint64 readPattern(QIODevice &device, QDomElement *parent, QDomDocument *doc)
 {
     using namespace KisAslReaderUtils;
 
     quint32 patternSize = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, patternSize);
 
     // patterns are always aligned by 4 bytes
     patternSize = KisAslWriterUtils::alignOffsetCeil(patternSize, 4);
 
     SETUP_OFFSET_VERIFIER(patternEndVerifier, device, patternSize, 0);
 
     quint32 patternVersion = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, patternVersion);
 
     if (patternVersion != 1) {
         throw ASLParseException("Pattern version is not \'1\'");
     }
 
     quint32 patternImageMode = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, patternImageMode);
 
     dbgFile << "Pattern format:" << patternImageMode << "(" << device.pos() << ")";
 
     quint16 patternHeight = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, patternHeight);
 
     dbgFile << "Pattern height:" << patternHeight << "(" << device.pos() << ")";
 
     quint16 patternWidth = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(byteOrder, device, patternWidth);
 
     dbgFile << "Pattern width:" << patternHeight << "(" << device.pos() << ")";
 
     QString patternName;
     psdread_unicodestring<byteOrder>(device, patternName);
 
     dbgFile << "Pattern name:" << patternName << "(" << device.pos() << ")";
 
     QString patternUuid = readPascalString<byteOrder>(device);
 
     dbgFile << "Pattern UUID:" << patternUuid << "(" << device.pos() << ")";
 
     // dbgKrita << "--";
     // dbgKrita << ppVar(patternSize);
     // dbgKrita << ppVar(patternImageMode);
     // dbgKrita << ppVar(patternHeight);
     // dbgKrita << ppVar(patternWidth);
     // dbgKrita << ppVar(patternName);
     // dbgKrita << ppVar(patternUuid);
 
     int numPlanes = 0;
     psd_color_mode mode = static_cast<psd_color_mode>(patternImageMode);
 
     switch (mode) {
     case MultiChannel:
     case Grayscale:
     case Indexed:
         numPlanes = 1;
         break;
     case RGB:
         numPlanes = 3;
         break;
     default: {
         QString msg = QString("Unsupported image mode: %1!").arg(mode);
         throw ASLParseException(msg);
     }
     }
 
     QVector<QRgb> palette;
 
     if (mode == Indexed) {
 
         palette.resize(256);
 
         for(auto i = 0; i < 256; i++) {
             quint8 r = 0;
             quint8 g = 0;
             quint8 b = 0;
             psdread<byteOrder>(device, r);
             psdread<byteOrder>(device, g);
             psdread<byteOrder>(device, b);
             palette[i] = qRgb(r, g, b);
         }
 
         dbgFile << "Palette: " << palette << "(" << device.pos() << ")";
 
         // XXX: there's no way to detect this. Assume the 772 length
         quint16 validColours = GARBAGE_VALUE_MARK;
         psdread<byteOrder>(device, validColours);
         palette.resize(validColours);
         dbgFile << "Palette real size:" << validColours << "(" << device.pos() << ")";
 
         // Set transparent colour
         quint16 transparentIdx = GARBAGE_VALUE_MARK;
         psdread<byteOrder>(device, transparentIdx);
         dbgFile << "Transparent index:" << transparentIdx << "(" << device.pos() << ")";
 
         palette[transparentIdx] = qRgba(qRed(palette[transparentIdx]),
                                         qGreen(palette[transparentIdx]),
                                         qBlue(palette[transparentIdx]), 0x00);
     }
 
     /**
      * Create XML data
      */
 
     QDomElement pat = doc->createElement("node");
 
     pat.setAttribute("classId", "KisPattern");
     pat.setAttribute("type", "Descriptor");
     pat.setAttribute("name", "");
 
     QBuffer patternBuf;
     patternBuf.open(QIODevice::WriteOnly);
 
     { // ensure we don't keep resources for too long
         // XXX: this QImage should tolerate 16-bit and higher
         QString fileName = QString("%1.pat").arg(patternUuid);
         QImage patternImage = readVirtualArrayList<byteOrder>(device, numPlanes, palette);
         KoPattern realPattern(patternImage, patternName, fileName);
         realPattern.savePatToDevice(&patternBuf);
     }
 
     /**
      * We are loading the pattern and convert it into ARGB right away,
      * so we need not store real image mode and size of the pattern
      * externally.
      */
     appendTextXMLNode("Nm  ", patternName, &pat, doc);
     appendTextXMLNode("Idnt", patternUuid, &pat, doc);
 
     QDomCDATASection dataSection = doc->createCDATASection(qCompress(patternBuf.buffer()).toBase64());
 
     QDomElement dataElement = doc->createElement("node");
     dataElement.setAttribute("type", "KisPatternData");
     dataElement.setAttribute("key", "Data");
 
     dataElement.appendChild(dataSection);
     pat.appendChild(dataElement);
     parent->appendChild(pat);
 
     return sizeof(patternSize) + patternSize;
 }
 
 QDomDocument readFileImpl(QIODevice &device)
 {
     using namespace KisAslReaderUtils;
 
     QDomDocument doc;
     QDomElement root = doc.createElement("asl");
     doc.appendChild(root);
 
     {
         quint16 stylesVersion = GARBAGE_VALUE_MARK;
         SAFE_READ_SIGNATURE_EX(psd_byte_order::psdBigEndian, device, stylesVersion, 2);
     }
 
     {
         quint32 aslSignature = GARBAGE_VALUE_MARK;
         const quint32 refSignature = 0x3842534c; // '8BSL' in little-endian
         SAFE_READ_SIGNATURE_EX(psd_byte_order::psdBigEndian, device, aslSignature, refSignature);
     }
 
     {
         quint16 patternsVersion = GARBAGE_VALUE_MARK;
         SAFE_READ_SIGNATURE_EX(psd_byte_order::psdBigEndian, device, patternsVersion, 3);
     }
 
     // Patterns
 
     {
         quint32 patternsSize = GARBAGE_VALUE_MARK;
         SAFE_READ_EX(psd_byte_order::psdBigEndian, device, patternsSize);
 
         if (patternsSize > 0) {
             SETUP_OFFSET_VERIFIER(patternsSectionVerifier, device, patternsSize, 0);
 
             QDomElement patternsRoot = doc.createElement("node");
             patternsRoot.setAttribute("type", "List");
             patternsRoot.setAttribute("key", ResourceType::Patterns);
             root.appendChild(patternsRoot);
 
             try {
                 qint64 bytesRead = 0;
                 while (bytesRead < patternsSize) {
                     qint64 chunk = readPattern(device, &patternsRoot, &doc);
                     bytesRead += chunk;
                 }
             } catch (ASLParseException &e) {
                 warnKrita << "WARNING: ASL (emb. pattern):" << e.what();
             }
         }
     }
 
     // Styles
 
     quint32 numStyles = GARBAGE_VALUE_MARK;
     SAFE_READ_EX(psd_byte_order::psdBigEndian, device, numStyles);
 
     for (int i = 0; i < (int)numStyles; i++) {
         quint32 bytesToRead = GARBAGE_VALUE_MARK;
         SAFE_READ_EX(psd_byte_order::psdBigEndian, device, bytesToRead);
 
         SETUP_OFFSET_VERIFIER(singleStyleSectionVerifier, device, bytesToRead, 0);
 
         {
             quint32 stylesFormatVersion = GARBAGE_VALUE_MARK;
             SAFE_READ_SIGNATURE_EX(psd_byte_order::psdBigEndian, device, stylesFormatVersion, 16);
         }
 
         readDescriptor(device, "", &root, &doc);
 
         {
             quint32 stylesFormatVersion = GARBAGE_VALUE_MARK;
             SAFE_READ_SIGNATURE_EX(psd_byte_order::psdBigEndian, device, stylesFormatVersion, 16);
         }
 
         readDescriptor(device, "", &root, &doc);
     }
 
     return doc;
 }
 
 } // namespace Private
 
 QDomDocument KisAslReader::readFile(QIODevice &device)
 {
     QDomDocument doc;
 
     if (device.isSequential()) {
         warnKrita << "WARNING: *** KisAslReader::readFile: the supplied"
                   << "IO device is sequential. Chances are that"
                   << "the layer style will *not* be loaded correctly!";
     }
 
     try {
         doc = Private::readFileImpl(device);
     } catch (KisAslReaderUtils::ASLParseException &e) {
         warnKrita << "WARNING: ASL:" << e.what();
     }
 
     return doc;
 }
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 QDomDocument readLfx2PsdSectionImpl(QIODevice &device);
 
 QDomDocument KisAslReader::readLfx2PsdSection(QIODevice &device, psd_byte_order byteOrder)
 {
     switch (byteOrder) {
     case psd_byte_order::psdLittleEndian:
         return readLfx2PsdSectionImpl<psd_byte_order::psdLittleEndian>(device);
     default:
         return readLfx2PsdSectionImpl(device);
     }
 }
 
 template<psd_byte_order byteOrder>
 QDomDocument readLfx2PsdSectionImpl(QIODevice &device)
 {
     QDomDocument doc;
 
     if (device.isSequential()) {
         warnKrita << "WARNING: *** KisAslReader::readLfx2PsdSection: the supplied"
                   << "IO device is sequential. Chances are that"
                   << "the layer style will *not* be loaded correctly!";
     }
 
     try {
         {
             quint32 objectEffectsVersion = GARBAGE_VALUE_MARK;
             const quint32 ref = 0x00;
             SAFE_READ_SIGNATURE_EX(byteOrder, device, objectEffectsVersion, ref);
         }
 
         {
             quint32 descriptorVersion = GARBAGE_VALUE_MARK;
             const quint32 ref = 0x10;
             SAFE_READ_SIGNATURE_EX(byteOrder, device, descriptorVersion, ref);
         }
 
         QDomElement root = doc.createElement("asl");
         doc.appendChild(root);
 
         Private::readDescriptor<byteOrder>(device, "", &root, &doc);
 
     } catch (KisAslReaderUtils::ASLParseException &e) {
         warnKrita << "WARNING: PSD: lfx2 section:" << e.what();
     }
 
     return doc;
 }
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 QDomDocument readFillLayerImpl(QIODevice &device);
 
 QDomDocument KisAslReader::readFillLayer(QIODevice &device, psd_byte_order byteOrder)
 {
     switch (byteOrder) {
     case psd_byte_order::psdLittleEndian:
         return readFillLayerImpl<psd_byte_order::psdLittleEndian>(device);
     default:
         return readFillLayerImpl(device);
     }
 }
 
 template<psd_byte_order byteOrder>
 QDomDocument readFillLayerImpl(QIODevice &device)
 {
     QDomDocument doc;
 
     if (device.isSequential()) {
         warnKrita << "WARNING: *** KisAslReader::readFillLayerPsdSection: the supplied"
                   << "IO device is sequential. Chances are that"
                   << "the fill config will *not* be loaded correctly!";
     }
     try {
 
         {
             quint32 descriptorVersion = GARBAGE_VALUE_MARK;
             SAFE_READ_SIGNATURE_EX(byteOrder, device, descriptorVersion, 16);
         }
 
         QDomElement root = doc.createElement("asl");
         doc.appendChild(root);
 
         Private::readDescriptor<byteOrder>(device, "", &root, &doc);
 
     } catch (KisAslReaderUtils::ASLParseException &e) {
         warnKrita << "WARNING: PSD: SoCo section:" << e.what();
     }
 
     return doc;
 }
 
 template<psd_byte_order byteOrder = psd_byte_order::psdBigEndian>
 QDomDocument readPsdSectionPatternImpl(QIODevice &device, qint64 bytesLeft);
 
 QDomDocument KisAslReader::readPsdSectionPattern(QIODevice &device, qint64 bytesLeft, psd_byte_order byteOrder)
 {
     switch (byteOrder) {
     case psd_byte_order::psdLittleEndian:
         return readPsdSectionPatternImpl<psd_byte_order::psdLittleEndian>(device, bytesLeft);
     default:
         return readPsdSectionPatternImpl(device, bytesLeft);
     }
 }
 
 template<psd_byte_order byteOrder>
 QDomDocument readPsdSectionPatternImpl(QIODevice &device, qint64 bytesLeft)
 {
     QDomDocument doc;
 
     QDomElement root = doc.createElement("asl");
     doc.appendChild(root);
 
     QDomElement pat = doc.createElement("node");
     root.appendChild(pat);
 
     pat.setAttribute("classId", ResourceType::Patterns);
     pat.setAttribute("type", "Descriptor");
     pat.setAttribute("name", "");
 
     try {
         qint64 bytesRead = 0;
         while (bytesRead < bytesLeft) {
             qint64 chunk = Private::readPattern<byteOrder>(device, &pat, &doc);
             bytesRead += chunk;
         }
     } catch (KisAslReaderUtils::ASLParseException &e) {
         warnKrita << "WARNING: PSD (emb. pattern):" << e.what();
     }
 
     return doc;
 }