diff options
Diffstat (limited to 'reader/src/formats/pdb/PdbReader.cpp')
-rw-r--r-- | reader/src/formats/pdb/PdbReader.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/reader/src/formats/pdb/PdbReader.cpp b/reader/src/formats/pdb/PdbReader.cpp new file mode 100644 index 0000000..54dc654 --- /dev/null +++ b/reader/src/formats/pdb/PdbReader.cpp @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2004-2012 Geometer Plus <contact@geometerplus.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <ZLFile.h> + +#include "PdbReader.h" + +void PdbUtil::readUnsignedShort(ZLInputStream &stream, unsigned short &N) { + unsigned char data[2]; + stream.read((char*)data, 2); + N = (((unsigned short)data[0]) << 8) + data[1]; +} + +void PdbUtil::readUnsignedLongBE(ZLInputStream &stream, unsigned long &N) { + unsigned char data[4]; + stream.read((char*)data, 4); + N = (((unsigned long)data[0]) << 24) + + (((unsigned long)data[1]) << 16) + + (((unsigned long)data[2]) << 8) + + (unsigned long)data[3]; +} + +void PdbUtil::readUnsignedLongLE(ZLInputStream &stream, unsigned long &N) { + unsigned char data[4]; + stream.read((char*)data, 4); + N = (((unsigned long)data[3]) << 24) + + (((unsigned long)data[2]) << 16) + + (((unsigned long)data[1]) << 8) + + (unsigned long)data[0]; +} + +bool PdbHeader::read(shared_ptr<ZLInputStream> stream) { + const std::size_t startOffset = stream->offset(); + DocName.erase(); + DocName.append(32, '\0'); + stream->read((char*)DocName.data(), 32); // stream offset: +32 + + PdbUtil::readUnsignedShort(*stream, Flags); // stream offset: +34 + + stream->seek(26, false); // stream offset: +60 + + Id.erase(); + Id.append(8, '\0'); + stream->read((char*)Id.data(), 8); // stream offset: +68 + + stream->seek(8, false); // stream offset: +76 + Offsets.clear(); + unsigned short numRecords; + PdbUtil::readUnsignedShort(*stream, numRecords); // stream offset: +78 + Offsets.reserve(numRecords); + + for (int i = 0; i < numRecords; ++i) { // stream offset: +78 + 8 * records number + unsigned long recordOffset; + PdbUtil::readUnsignedLongBE(*stream, recordOffset); + Offsets.push_back(recordOffset); + stream->seek(4, false); + } + return stream->offset() == startOffset + 78 + 8 * numRecords; +} + +/*bool PdbRecord0::read(shared_ptr<ZLInputStream> stream) { + std::size_t startOffset = stream->offset(); + + PdbUtil::readUnsignedShort(*stream, CompressionType); + PdbUtil::readUnsignedShort(*stream, Spare); + PdbUtil::readUnsignedLongBE(*stream, TextLength); + PdbUtil::readUnsignedShort(*stream, TextRecords); + PdbUtil::readUnsignedShort(*stream, MaxRecordSize); + PdbUtil::readUnsignedShort(*stream, NontextOffset); + PdbUtil::readUnsignedShort(*stream, NontextOffset2); + + PdbUtil::readUnsignedLongBE(*stream, MobipocketID); + PdbUtil::readUnsignedLongBE(*stream, MobipocketHeaderSize); + PdbUtil::readUnsignedLongBE(*stream, Unknown24); + PdbUtil::readUnsignedShort(*stream, FootnoteRecs); + PdbUtil::readUnsignedShort(*stream, SidebarRecs); + + PdbUtil::readUnsignedShort(*stream, BookmarkOffset); + PdbUtil::readUnsignedShort(*stream, Unknown34); + PdbUtil::readUnsignedShort(*stream, NontextOffset3); + PdbUtil::readUnsignedShort(*stream, Unknown38); + PdbUtil::readUnsignedShort(*stream, ImagedataOffset); + PdbUtil::readUnsignedShort(*stream, ImagedataOffset2); + PdbUtil::readUnsignedShort(*stream, MetadataOffset); + PdbUtil::readUnsignedShort(*stream, MetadataOffset2); + PdbUtil::readUnsignedShort(*stream, FootnoteOffset); + PdbUtil::readUnsignedShort(*stream, SidebarOffset); + PdbUtil::readUnsignedShort(*stream, LastDataOffset); + PdbUtil::readUnsignedShort(*stream, Unknown54); + + return stream->offset() == startOffset + 56; +}*/ |