WinHelpFileHeader::WinHelpFileHeader(QFile &file, qint64 off)
{
PRINT_DBG("Reading WinHelp file header at %lld", off);
seekFile(file, off);
quint32 magicIn = readUnsignedDWord(file);
if (magicIn != magic)
{
throw std::runtime_error("Not a WinHelp file header");
}
PRINT_DBG(" Magic: %d", magicIn);
this->directoryStart = static_cast<qint64> (readUnsignedDWord(file));
PRINT_DBG(" Directory start: %lld", this->directoryStart);
this->firstFreeBlock = static_cast<qint64> (readUnsignedDWord(file));
PRINT_DBG(" FirstFreeBlock: %lld", this->firstFreeBlock);
this->entireFileSize = static_cast<qint64> (readUnsignedDWord(file));
PRINT_DBG(" Entire file size: %lld", this->entireFileSize);
PRINT_DBG("WinHelp file header loaded successfully");
}
quint32 readCompressedUnsignedDWord(QIODevice &device)
{
qint64 pos = device.pos();
quint8 lowByte = readUnsignedByte(device);
if((lowByte & 1) != 0)
{
seekFile(device, pos);
return readUnsignedDWord(device) / 2;
}
else
{
seekFile(device, pos);
return static_cast<quint32>(readUnsignedWord(device)) / 2;
}
}
BitmapCoreHeaderObject::BitmapCoreHeaderObject(QIODevice &device)
{
this->headerSize = readUnsignedDWord(device);
if(this->headerSize != 12)
{
throw std::runtime_error("Invalid bitmap core header size");
}
this->width = readUnsignedWord(device);
this->height = readUnsignedWord(device);
this->planes = readUnsignedWord(device);
if(this->planes != 1)
{
throw std::runtime_error("Invalid bitmap planes count");
}
this->bitCount = readUnsignedWord(device);
}
qint32 readCompressedSignedDWord(QIODevice &device)
{
qint64 pos = device.pos();
quint8 lowByte = readUnsignedByte(device);
if((lowByte & 1) != 0)
{
seekFile(device, pos);
return static_cast<qint32>((static_cast<qint64>(readUnsignedDWord(
device)) - Q_INT64_C(0x80000000)) / Q_INT64_C(2));
}
else
{
seekFile(device, pos);
return static_cast<qint32>((static_cast<qint64>(readUnsignedWord(device))
- Q_INT64_C(0x8000)) / Q_INT64_C(2));
}
}
MetafileRecord::MetafileRecord(QIODevice &device)
{
this->recordSizeInWords = readUnsignedDWord(device);
this->recordFunction = readUnsignedWord(device);
bool validRecordType = false;
switch(this->recordFunction & 0x00FF)
{
case (META_EOF & 0x00FF):
validRecordType = true;
break;
case (META_REALIZEPALETTE & 0x00FF):
validRecordType = true;
break;
case (META_SETPALENTRIES & 0x00FF):
validRecordType = true;
break;
case (META_SETBKMODE & 0x00FF):
validRecordType = true;
break;
case (META_SETMAPMODE & 0x00FF):
validRecordType = true;
break;
case (META_SETROP2 & 0x00FF):
validRecordType = true;
break;
case (META_SETRELABS & 0x00FF):
validRecordType = true;
break;
case (META_SETPOLYFILLMODE & 0x00FF):
validRecordType = true;
break;
case (META_SETSTRETCHBLTMODE & 0x00FF):
validRecordType = true;
break;
case (META_SETTEXTCHAREXTRA & 0x00FF):
validRecordType = true;
break;
case (META_RESTOREDC & 0x00FF):
validRecordType = true;
break;
case (META_RESIZEPALETTE & 0x00FF):
validRecordType = true;
break;
case (META_DIBCREATEPATTERNBRUSH & 0x00FF):
validRecordType = true;
break;
case (META_SETLAYOUT & 0x00FF):
validRecordType = true;
break;
case (META_SETBKCOLOR & 0x00FF):
validRecordType = true;
break;
case (META_SETTEXTCOLOR & 0x00FF):
validRecordType = true;
break;
case (META_OFFSETVIEWPORTORG & 0x00FF):
validRecordType = true;
break;
case (META_LINETO & 0x00FF):
validRecordType = true;
break;
case (META_MOVETO & 0x00FF):
validRecordType = true;
break;
case (META_OFFSETCLIPRGN & 0x00FF):
validRecordType = true;
break;
case (META_FILLREGION & 0x00FF):
validRecordType = true;
break;
case (META_SETMAPPERFLAGS & 0x00FF):
validRecordType = true;
break;
case (META_SELECTPALETTE & 0x00FF):
validRecordType = true;
break;
case (META_POLYGON & 0x00FF):
validRecordType = true;
break;
case (META_POLYLINE & 0x00FF):
validRecordType = true;
break;
case (META_SETTEXTJUSTIFICATION & 0x00FF):
validRecordType = true;
break;
case (META_SETWINDOWORG & 0x00FF):
validRecordType = true;
break;
case (META_SETWINDOWEXT & 0x00FF):
validRecordType = true;
break;
case (META_SETVIEWPORTORG & 0x00FF):
validRecordType = true;
break;
case (META_SETVIEWPORTEXT & 0x00FF):
validRecordType = true;
break;
case (META_OFFSETWINDOWORG & 0x00FF):
validRecordType = true;
break;
case (META_SCALEWINDOWEXT & 0x00FF):
validRecordType = true;
break;
case (META_SCALEVIEWPORTEXT & 0x00FF):
validRecordType = true;
break;
case (META_EXCLUDECLIPRECT & 0x00FF):
validRecordType = true;
break;
case (META_INTERSECTCLIPRECT & 0x00FF):
validRecordType = true;
break;
case (META_ELLIPSE & 0x00FF):
validRecordType = true;
break;
case (META_FLOODFILL & 0x00FF):
validRecordType = true;
break;
case (META_FRAMEREGION & 0x00FF):
validRecordType = true;
break;
case (META_ANIMATEPALETTE & 0x00FF):
validRecordType = true;
break;
case (META_TEXTOUT & 0x00FF):
validRecordType = true;
break;
case (META_POLYPOLYGON & 0x00FF):
validRecordType = true;
break;
case (META_EXTFLOODFILL & 0x00FF):
validRecordType = true;
break;
case (META_RECTANGLE & 0x00FF):
validRecordType = true;
break;
case (META_SETPIXEL & 0x00FF):
validRecordType = true;
break;
case (META_ROUNDRECT & 0x00FF):
validRecordType = true;
break;
case (META_PATBLT & 0x00FF):
validRecordType = true;
break;
case (META_SAVEDC & 0x00FF):
validRecordType = true;
break;
case (META_PIE & 0x00FF):
validRecordType = true;
break;
case (META_STRETCHBLT & 0x00FF):
validRecordType = true;
break;
case (META_ESCAPE & 0x00FF):
validRecordType = true;
break;
case (META_INVERTREGION & 0x00FF):
validRecordType = true;
break;
case (META_PAINTREGION & 0x00FF):
validRecordType = true;
break;
case (META_SELECTCLIPREGION & 0x00FF):
validRecordType = true;
break;
case (META_SELECTOBJECT & 0x00FF):
validRecordType = true;
break;
case (META_SETTEXTALIGN & 0x00FF):
validRecordType = true;
break;
case (META_ARC & 0x00FF):
validRecordType = true;
break;
case (META_CHORD & 0x00FF):
validRecordType = true;
break;
case (META_BITBLT & 0x00FF):
validRecordType = true;
break;
case (META_EXTTEXTOUT & 0x00FF):
validRecordType = true;
break;
case (META_SETDIBTODEV & 0x00FF):
validRecordType = true;
break;
case (META_DIBBITBLT & 0x00FF):
validRecordType = true;
break;
case (META_DIBSTRETCHBLT & 0x00FF):
validRecordType = true;
break;
case (META_STRETCHDIB & 0x00FF):
validRecordType = true;
break;
case (META_DELETEOBJECT & 0x00FF):
validRecordType = true;
break;
case (META_CREATEPALETTE & 0x00FF):
validRecordType = true;
break;
case (META_CREATEPATTERNBRUSH & 0x00FF):
validRecordType = true;
break;
case (META_CREATEPENINDIRECT & 0x00FF):
validRecordType = true;
break;
case (META_CREATEFONTINDIRECT & 0x00FF):
validRecordType = true;
break;
case (META_CREATEBRUSHINDIRECT & 0x00FF):
validRecordType = true;
break;
case (META_CREATEREGION & 0x00FF):
validRecordType = true;
break;
default:
validRecordType = false;
};
if(!validRecordType)
{
throw std::runtime_error("Invalid record function");
}
}
WinHelpPhraseFile::WinHelpPhraseFile(QFile &file, qint64 off,
QTextCodec *codec, bool compressed, bool mvbHint) :
phrases(), phrasesRaw()
{
PRINT_DBG("Loading WinHelp phrase file at %lld", off);
if (codec == NULL)
{
throw std::runtime_error("Codec is NULL");
}
seekFile(file, off);
InternalDirectoryFileHeader hdr(file, off);
if (compressed)
{
if (mvbHint)
{
seekFile(file, off + InternalDirectoryFileHeader::size);
quint16 eightHundr = readUnsignedWord(file);
quint16 nPhr = readUnsignedWord(file);
quint16 oneHundr = readUnsignedWord(file);
if ((eightHundr == 0x0800) && (oneHundr == 0x0100) && (nPhr != 0))
{
PRINT_DBG(
"Loading compressed WinHelp phrase file, MVB alternative");
seekFile(file, off + InternalDirectoryFileHeader::size);
quint16 eightHundred = readUnsignedWord(file);
PRINT_DBG(" Eight hundred: %d", eightHundred);
quint16 numPhrases = readUnsignedWord(file);
PRINT_DBG(" Num phrases: %d", numPhrases);
quint16 oneHundred = readUnsignedWord(file);
PRINT_DBG(" One hundred: %d", oneHundred);
if (oneHundred != 0x0100)
{
throw std::runtime_error("Not a WinHelp phrase file");
}
quint32 uncompressedSize = readUnsignedDWord(file);
PRINT_DBG(" Uncompressed size: %d", uncompressedSize);
for (int i = 0; i < 30; i++)
{
quint8 unused = readUnsignedByte(file);
PRINT_DBG(" Unused: %d", unused);
}
QScopedArrayPointer<uint> phraseOffset(
new uint[static_cast<size_t> (numPhrases + 1)]);
PRINT_DBG("Reading phrase offsets at %lld", file.pos());
for (quint16 index = 0; index < numPhrases + 1; index++)
{
phraseOffset[index] = static_cast<uint> (readUnsignedWord(
file));
PRINT_DBG(" Phrase offset: %d", phraseOffset[index]);
}
qint64 inputLength = off + hdr.getReservedSpace() - file.pos();
PRINT_DBG("Reading compressed phrases at %lld", file.pos());
QScopedArrayPointer<quint8>
uncompressedPhrases(
new quint8[static_cast<size_t> (uncompressedSize)]);
unpackLZ77(file, file.pos(), inputLength,
uncompressedPhrases.data(),
static_cast<size_t> (uncompressedSize));
size_t pointer = static_cast<size_t> (0);
for (quint16 index = 0; index < numPhrases; index++)
{
uint size = phraseOffset[index + 1] - phraseOffset[index];
QString phrase = readFixedLengthStringFromBuffer(
uncompressedPhrases.data(),
static_cast<size_t> (uncompressedSize),
pointer, size, codec);
this->phrases.append(phrase);
QScopedArrayPointer<quint8> phraseRaw(
new quint8[static_cast<size_t> (size)]);
copyBytesFromBuffer(
reinterpret_cast<const void *> (uncompressedPhrases.
data()),
static_cast<size_t> (uncompressedSize),
pointer, static_cast<size_t> (size),
reinterpret_cast<void *> (phraseRaw.data()),
static_cast<size_t> (size));
this->phrasesRaw.append(QByteArray(
reinterpret_cast<const char *> (phraseRaw.data()),
static_cast<int> (size)));
pointer += static_cast<size_t> (size);
PRINT_DBG(" Phrase: %s", phrase.toLocal8Bit().data());
}
}
else
{
PRINT_DBG("Loading compressed WinHelp phrase file");
seekFile(file, off + InternalDirectoryFileHeader::size);
quint16 numPhrases = readUnsignedWord(file);
PRINT_DBG(" Num phrases: %d", numPhrases);
quint16 oneHundred = readUnsignedWord(file);
PRINT_DBG(" One hundred: %d", oneHundred);
if (oneHundred != 0x0100)
{
throw std::runtime_error("Not a WinHelp phrase file");
}
quint32 uncompressedSize = readUnsignedDWord(file);
PRINT_DBG(" Uncompressed size: %d", uncompressedSize);
QScopedArrayPointer<uint> phraseOffset(
new uint[static_cast<size_t> (numPhrases + 1)]);
PRINT_DBG("Reading phrase offsets at %lld", file.pos());
for (quint16 index = 0; index < numPhrases + 1; index++)
{
phraseOffset[index] = static_cast<uint> (readUnsignedWord(
file));
PRINT_DBG(" Phrase offset: %d", phraseOffset[index]);
}
PRINT_DBG("Reading compressed phrases at %lld", file.pos());
qint64 inputLength = off + hdr.getReservedSpace() - file.pos();
QScopedArrayPointer<quint8>
uncompressedPhrases(
new quint8[static_cast<size_t> (uncompressedSize)]);
unpackLZ77(file, file.pos(), inputLength,
uncompressedPhrases.data(),
static_cast<size_t> (uncompressedSize));
size_t pointer = static_cast<size_t> (0);
for (quint16 index = 0; index < numPhrases; index++)
{
uint size = phraseOffset[index + 1] - phraseOffset[index];
QString phrase = readFixedLengthStringFromBuffer(
uncompressedPhrases.data(),
static_cast<size_t> (uncompressedSize),
pointer, size, codec);
this->phrases.append(phrase);
QScopedArrayPointer<quint8> phraseRaw(
new quint8[static_cast<size_t> (size)]);
copyBytesFromBuffer(
reinterpret_cast<const void *> (uncompressedPhrases.
data()),
static_cast<size_t> (uncompressedSize),
pointer, static_cast<size_t> (size),
reinterpret_cast<void *> (phraseRaw.data()),
static_cast<size_t> (size));
this->phrasesRaw.append(QByteArray(
reinterpret_cast<const char *> (phraseRaw.data()),
static_cast<int> (size)));
pointer += static_cast<size_t> (size);
PRINT_DBG(" Phrase: %s", phrase.toLocal8Bit().data());
}
}
}
else
{
PRINT_DBG("Loading compressed WinHelp phrase file");
seekFile(file, off + InternalDirectoryFileHeader::size);
quint16 numPhrases = readUnsignedWord(file);
PRINT_DBG(" Num phrases: %d", numPhrases);
quint16 oneHundred = readUnsignedWord(file);
PRINT_DBG(" One hundred: %d", oneHundred);
if (oneHundred != 0x0100)
{
throw std::runtime_error("Not a WinHelp phrase file");
}
quint32 uncompressedSize = readUnsignedDWord(file);
PRINT_DBG(" Uncompressed size: %d", uncompressedSize);
QScopedArrayPointer<uint> phraseOffset(
new uint[static_cast<size_t> (numPhrases + 1)]);
PRINT_DBG("Reading phrase offsets at %lld", file.pos());
for (quint16 index = 0; index < numPhrases + 1; index++)
{
phraseOffset[index]
= static_cast<uint> (readUnsignedWord(file));
PRINT_DBG(" Phrase offset: %d", phraseOffset[index]);
}
PRINT_DBG("Reading compressed phrases at %lld", file.pos());
qint64 inputLength = off + hdr.getReservedSpace() - file.pos();
QScopedArrayPointer<quint8> uncompressedPhrases(
new quint8[static_cast<size_t> (uncompressedSize)]);
unpackLZ77(file, file.pos(), inputLength,
uncompressedPhrases.data(),
static_cast<size_t> (uncompressedSize));
size_t pointer = static_cast<size_t> (0);
for (quint16 index = 0; index < numPhrases; index++)
{
uint size = phraseOffset[index + 1] - phraseOffset[index];
QString phrase = readFixedLengthStringFromBuffer(
uncompressedPhrases.data(),
static_cast<size_t> (uncompressedSize), pointer,
size, codec);
this->phrases.append(phrase);
QScopedArrayPointer<quint8> phraseRaw(
new quint8[static_cast<size_t> (size)]);
copyBytesFromBuffer(
reinterpret_cast<const void *> (uncompressedPhrases.data()),
static_cast<size_t> (uncompressedSize), pointer,
static_cast<size_t> (size),
reinterpret_cast<void *> (phraseRaw.data()),
static_cast<size_t> (size));
this->phrasesRaw.append(QByteArray(
reinterpret_cast<const char *> (phraseRaw.data()),
static_cast<int> (size)));
pointer += static_cast<size_t> (size);
PRINT_DBG(" Phrase: %s", phrase.toLocal8Bit().data());
}
}
}
else
{
PRINT_DBG("Loading uncompressed WinHelp phrase file");
seekFile(file, off + InternalDirectoryFileHeader::size);
quint16 numPhrases = readUnsignedWord(file);
PRINT_DBG(" Num phrases: %d", numPhrases);
quint16 oneHundred = readUnsignedWord(file);
PRINT_DBG(" One hundred: %d", oneHundred);
if (oneHundred != 0x0100)
{
throw std::runtime_error("Not a WinHelp phrase file");
}
QScopedArrayPointer<uint> phraseOffset(
new uint[static_cast<size_t> (numPhrases + 1)]);
PRINT_DBG("Reading phrase offsets at %lld", file.pos());
for (quint16 index = 0; index < numPhrases + 1; index++)
{
phraseOffset[index] = static_cast<uint> (readUnsignedWord(file));
PRINT_DBG(" Phrase offset: %d", phraseOffset[index]);
}
PRINT_DBG("Reading phrases at %lld", file.pos());
for (quint16 index = 0; index < numPhrases; index++)
{
uint size = phraseOffset[index + 1] - phraseOffset[index];
qint64 posMem = file.pos();
QString phrase = readFixedLengthString(file, size, codec);
this->phrases.append(phrase);
QScopedArrayPointer<quint8> phraseRaw(
new quint8[static_cast<size_t> (size)]);
seekFile(file, posMem);
fillBuffer(file, static_cast<qint64> (size),
reinterpret_cast<void *> (phraseRaw.data()),
static_cast<size_t> (size));
this->phrasesRaw.append(QByteArray(
reinterpret_cast<const char *> (phraseRaw.data()),
static_cast<int> (size)));
PRINT_DBG(" Phrase: %s", phrase.toLocal8Bit().data());
}
}
PRINT_DBG("WinHelp phrase file loaded successfully");
}
static unsigned long long readUnsignedQWord(ZLInputStream &stream) {
unsigned long long lowPart = readUnsignedDWord(stream);
unsigned long long highPart = readUnsignedDWord(stream);
return (highPart << 32) + lowPart;
}
bool CHMFileInfo::init(ZLInputStream &stream) {
{
// header start
if (readString(stream, 4) != "ITSF") {
return false;
}
unsigned long version = readUnsignedDWord(stream);
// DWORD total length
// DWORD unknown
// DWORD timestamp
// DWORD language id
// 0x10 bytes 1st GUID
// 0x10 bytes 2nd GUID
// QWORD section 0 offset
// QWORD section 0 length
stream.seek(4 * 4 + 2 * 0x10 + 2 * 8, false);
unsigned long long sectionOffset1 = readUnsignedQWord(stream);
unsigned long long sectionLength1 = readUnsignedQWord(stream);
mySection0Offset = sectionOffset1 + sectionLength1;
// header end
// additional header data start
if (version > 2) {
mySection0Offset = readUnsignedQWord(stream);
}
// additional header data end
stream.seek(sectionOffset1, true);
// header section 1 start
// directory header start
if (readString(stream, 4) != "ITSP") {
return false;
}
// DWORD version
// DWORD length
// DWORD 0x000A
// DWORD chunk size
// DWORD density
// DWORD depth
// DWORD root chunk number
// DWORD first chunk number
// DWORD last chunk number
// DWORD -1
stream.seek(10 * 4, false);
unsigned long dirChunkNumber = readUnsignedDWord(stream);
// ...
stream.seek(36, false);
// header section 1 end
std::size_t nextOffset = stream.offset();
for (unsigned long i = 0; i < dirChunkNumber; ++i) {
nextOffset += 4096;
std::string header = readString(stream, 4);
if (header == "PMGL") {
unsigned long quickRefAreaSize = readUnsignedDWord(stream) % 4096;
stream.seek(12, false);
std::size_t startOffset = stream.offset();
std::size_t oldOffset = startOffset;
while (startOffset < nextOffset - quickRefAreaSize) {
int nameLength = readEncodedInteger(stream);
std::string name = readString(stream, nameLength);
int contentSection = readEncodedInteger(stream);
int offset = readEncodedInteger(stream);
int length = readEncodedInteger(stream);
if (name.substr(0, 2) != "::") {
name = ZLUnicodeUtil::toLower(name);
}
myRecords.insert(
std::make_pair(
name,
CHMFileInfo::RecordInfo(contentSection, offset, length)
)
);
startOffset = stream.offset();
if (oldOffset == startOffset) {
break;
}
oldOffset = startOffset;
}
} else if (header == "PMGI") {
unsigned long quickRefAreaSize = readUnsignedDWord(stream);
std::size_t startOffset = stream.offset();
std::size_t oldOffset = startOffset;
while (startOffset < nextOffset - quickRefAreaSize) {
int nameLength = readEncodedInteger(stream);
std::string name = readString(stream, nameLength);
// chunk number
readEncodedInteger(stream);
startOffset = stream.offset();
if (oldOffset == startOffset) {
break;
}
oldOffset = startOffset;
}
}
stream.seek(nextOffset, true);
if (stream.offset() != nextOffset) {
break;
}
}
}
{
if (!moveToEntry(stream, "::DataSpace/NameList")) {
return false;
}
stream.seek(2, false);
const int sectionNumber = readUnsignedWord(stream);
for (int i = 0; i < sectionNumber; ++i) {
const int length = readUnsignedWord(stream);
std::string sectionName;
sectionName.reserve(length);
for (int j = 0; j < length; ++j) {
sectionName += (char)readUnsignedWord(stream);
}
stream.seek(2, false);
mySectionNames.push_back(sectionName);
}
}
{
for (unsigned int i = 1; i < mySectionNames.size(); ++i) {
RecordMap::const_iterator it =
myRecords.find("::DataSpace/Storage/" + mySectionNames[i] + "/Content");
if (it == myRecords.end()) {
return false;
}
RecordInfo recordInfo = it->second;
if (recordInfo.Section != 0) {
return false;
}
mySectionInfos.push_back(SectionInfo());
SectionInfo &info = mySectionInfos.back();
info.Offset = mySection0Offset + recordInfo.Offset;
info.Length = recordInfo.Length;
if (!moveToEntry(stream, "::DataSpace/Storage/" + mySectionNames[i] + "/ControlData")) {
return false;
}
stream.seek(4, false);
std::string lzxc = readString(stream, 4);
if (lzxc != "LZXC") {
return false;
}
const int version = readUnsignedDWord(stream);
if ((version <= 0) || (version > 2)) {
return false;
}
info.ResetInterval = readUnsignedDWord(stream);
if (version == 1) {
info.ResetInterval /= 0x8000;
}
info.WindowSizeIndex = (version == 1) ? 0 : 15;
{
int ws = readUnsignedDWord(stream);
if (ws > 0) {
while ((ws & 1) == 0) {
ws >>= 1;
info.WindowSizeIndex++;
}
}
}
if (!moveToEntry(stream, "::DataSpace/Storage/" + mySectionNames[i] + "/Transform/{7FC28940-9D31-11D0-9B27-00A0C91E9C7C}/InstanceData/ResetTable")) {
return false;
}
stream.seek(4, false);
const std::size_t entriesNumber = readUnsignedDWord(stream);
if (entriesNumber == 0) {
return false;
}
if (entriesNumber > 2048) {
// file size is greater than 60 Mb
return false;
}
info.ResetTable.reserve(entriesNumber);
stream.seek(8, false);
info.UncompressedSize = readUnsignedQWord(stream);
if ((info.UncompressedSize - 1) / 0x8000 != entriesNumber - 1) {
return false;
}
info.CompressedSize = readUnsignedQWord(stream);
stream.seek(8, false);
std::size_t previous = 0;
for (std::size_t j = 0; j < entriesNumber; ++j) {
std::size_t value = readUnsignedQWord(stream);
if ((j > 0) == (value <= previous)) {
return false;
}
info.ResetTable.push_back(value);
previous = value;
}
}
}
return true;
}
WinHelpIcon::WinHelpIcon(QFile &file, qint64 off) :
images()
{
PRINT_DBG("Loading icon");
seekFile(file, off);
quint16 magicIn = readUnsignedWord(file);
if (magicIn != 0)
{
throw std::runtime_error("Not an icon resource header");
}
PRINT_DBG(" Icon resource header magic: %d", magicIn);
quint16 resourceTypeIn = readUnsignedWord(file);
if (resourceTypeIn != 1)
{
throw std::runtime_error("Resource is not an icon");
}
PRINT_DBG(" Icon resource header resource type: %d", resourceTypeIn);
quint16 imagesCountIn = readUnsignedWord(file);
PRINT_DBG(" Icon resource header images count: %d", imagesCountIn);
QScopedArrayPointer<quint8> widths(new quint8[imagesCountIn]);
QScopedArrayPointer<quint8> heights(new quint8[imagesCountIn]);
QScopedArrayPointer<quint32> colorCounts(new quint32[imagesCountIn]);
QScopedArrayPointer<quint16> colorPlanes(new quint16[imagesCountIn]);
QScopedArrayPointer<quint16> bitsPerPixelCount(new quint16[imagesCountIn]);
QScopedArrayPointer<qint64> bitmapSizes(new qint64[imagesCountIn]);
QScopedArrayPointer<qint64> bitmapOffsets(new qint64[imagesCountIn]);
for (int index = 0; index < imagesCountIn; index++)
{
widths[index] = readUnsignedByte(file);
PRINT_DBG(" Icon image directory image header width: %d",
widths[index]);
heights[index] = readUnsignedByte(file);
PRINT_DBG(" Icon image directory image header height: %d",
heights[index]);
colorCounts[index] = static_cast<quint32> (readUnsignedByte(file));
PRINT_DBG(" Icon image directory image header color count: %d",
colorCounts[index]);
quint8 reservedIn = readUnsignedByte(file);
if (reservedIn != 0)
{
qDebug()
<< "Icon image directory image header reserved value is non-zero";
}
PRINT_DBG(" Icon image directory image header reserved: %d",
reservedIn);
colorPlanes[index] = readUnsignedWord(file);
PRINT_DBG(" Icon image directory image header color planes: %d",
colorPlanes[index]);
bitsPerPixelCount[index] = readUnsignedWord(file);
PRINT_DBG(
" Icon image directory image header bits per pixel count: %d",
bitsPerPixelCount[index]);
bitmapSizes[index] = static_cast<qint64> (readUnsignedDWord(file));
PRINT_DBG(" Icon image directory image header bitmap size: %lld",
bitmapSizes[index]);
bitmapOffsets[index] = static_cast<qint64> (readUnsignedDWord(file));
PRINT_DBG(
" Icon image directory image header bitmap offset: %lld",
bitmapOffsets[index]);
}
for (int index = 0; index < imagesCountIn; index++)
{
seekFile(file, off + bitmapOffsets[index]);
quint32 headerSizeIn = readUnsignedDWord(file);
PRINT_DBG(" Icon image header size: %d", headerSizeIn);
if (headerSizeIn == 40)
{
qint32 widthIn = readSignedDWord(file);
PRINT_DBG(" Icon image width: %d", widthIn);
qint64 realWidth = static_cast<qint64> (widths[index]);
if (realWidth == 0)
{
realWidth = static_cast<qint64> (widthIn);
}
qint32 heightIn = readSignedDWord(file);
PRINT_DBG(" Icon image height: %d", heightIn);
qint64 realHeight = static_cast<qint64> (heights[index]);
if (realHeight == 0)
{
realHeight = (static_cast<qint64> (heightIn)) / (Q_INT64_C(2));
}
quint16 colorPlanesIn = readUnsignedWord(file);
PRINT_DBG(" Icon image color planes: %d", colorPlanesIn);
quint16 bitsPerPixelCountIn = readUnsignedWord(file);
PRINT_DBG(" Icon image bits per pixel count: %d",
bitsPerPixelCountIn);
if (colorCounts[index] == 0)
{
if (colorPlanesIn == 1)
{
if (bitsPerPixelCountIn == 1)
{
colorCounts[index] = 2;
}
else
{
if (bitsPerPixelCountIn == 4)
{
colorCounts[index] = 16;
}
else
{
if (bitsPerPixelCountIn == 8)
{
colorCounts[index] = 256;
}
else
{
if (bitsPerPixelCountIn != 32)
{
colorCounts[index] = 1
<< bitsPerPixelCountIn;
}
}
}
}
}
else
{
colorCounts[index] = 1 << (bitsPerPixelCountIn
* colorPlanesIn);
}
}
quint32 compressionMethodIn = readUnsignedDWord(file);
PRINT_DBG(" Icon image compression method: %d",
compressionMethodIn);
quint32 imageSizeIn = readUnsignedDWord(file);
PRINT_DBG(" Icon image size: %d", imageSizeIn);
qint32 horizontalResolutionIn = readSignedDWord(file);
PRINT_DBG(" Icon image horizontal resolution: %d",
horizontalResolutionIn);
qint32 verticalResolutionIn = readSignedDWord(file);
PRINT_DBG(" Icon image vertical resolution: %d",
verticalResolutionIn);
quint32 colorsInPaletteIn = readUnsignedDWord(file);
PRINT_DBG(" Icon image colors in palette: %d",
colorsInPaletteIn);
quint32 importantColorsUsedIn = readUnsignedDWord(file);
PRINT_DBG(" Icon image imporatnt colors used: %d",
importantColorsUsedIn);
if ((realWidth != 0) && (realHeight != 0) && ((colorCounts[index]
== 0) || (colorCounts[index] == 2) ||
(colorCounts[index]
== 16) || (colorCounts[index] == 256)))
{
QImage image(static_cast<int> (realWidth),
static_cast<int> (realHeight), QImage::Format_ARGB32);
if (colorCounts[index] == 2)
{
QScopedArrayPointer<QRgb> palette(new QRgb[2]);
for (int i = 0; i < 2; i++)
{
palette[i] = readBGRDword(file);
}
qint64 scanlineBytes = ((realWidth + Q_INT64_C(31))
/ (Q_INT64_C(32))) * Q_INT64_C(4);
QScopedArrayPointer<quint8> xorImage(
new quint8[scanlineBytes * realHeight]);
QScopedArrayPointer<quint8> andImage(
new quint8[scanlineBytes * realHeight]);
if (file.read(reinterpret_cast<char *> (xorImage.data()),
(scanlineBytes * realHeight)) != (scanlineBytes
* realHeight))
{
throw std::runtime_error("Unable to read icon image");
}
if (file.read(reinterpret_cast<char *> (andImage.data()),
(scanlineBytes * realHeight)) != (scanlineBytes
* realHeight))
{
throw std::runtime_error("Unable to read icon image");
}
quint8 masks[] =
{
128, 64, 32, 16, 8, 4, 2, 1
};
for (qint64 row = 0; row < realHeight; row++)
{
for (qint64 col = 0; col < realWidth; col++)
{
int colorIndex = 0;
if ((xorImage[row * scanlineBytes + col
/ (Q_INT64_C(8))] & masks[col
% (Q_INT64_C(8))]) != 0)
{
colorIndex = 1;
}
else
{
colorIndex = 0;
}
if ((andImage[row * scanlineBytes + col
/ (Q_INT64_C(8))] & masks[col
% (Q_INT64_C(8))]) != 0)
{
image.setPixel(col, realHeight - Q_INT64_C(1)
- row, qRgba(qRed(palette[colorIndex]),
qGreen(palette[colorIndex]), qBlue(
palette[colorIndex]), 0));
}
else
{
image.setPixel(col, realHeight - Q_INT64_C(1)
- row, qRgba(qRed(palette[colorIndex]),
qGreen(palette[colorIndex]), qBlue(
palette[colorIndex]), 0xFF));
}
}
}
}
else
{
if (colorCounts[index] == 16)
{
QScopedArrayPointer<QRgb> palette(new QRgb[16]);
for (int i = 0; i < 16; i++)
{
palette[i] = readBGRDword(file);
}
qint64 scanlineBytesXor = ((realWidth * Q_INT64_C(4)
+ Q_INT64_C(31)) / (Q_INT64_C(32)))
* Q_INT64_C(4);
qint64 scanlineBytesAnd = ((realWidth + Q_INT64_C(31))
/ (Q_INT64_C(32))) * Q_INT64_C(4);
QScopedArrayPointer<quint8> xorImage(
new quint8[scanlineBytesXor * realHeight]);
QScopedArrayPointer<quint8> andImage(
new quint8[scanlineBytesAnd * realHeight]);
if (file.read(
reinterpret_cast<char *> (xorImage.data()),
(scanlineBytesXor * realHeight))
!= (scanlineBytesXor * realHeight))
{
throw std::runtime_error(
"Unable to read icon image");
}
if (file.read(
reinterpret_cast<char *> (andImage.data()),
(scanlineBytesAnd * realHeight))
!= (scanlineBytesAnd * realHeight))
{
throw std::runtime_error(
"Unable to read icon image");
}
quint8 masks[] =
{
128, 64, 32, 16, 8, 4, 2, 1
};
for (qint64 row = 0; row < realHeight; row++)
{
for (qint64 col = 0; col < realWidth; col++)
{
quint8 colorIndex = 0;
if ((col & Q_INT64_C(1)) == Q_INT64_C(0))
{
colorIndex = xorImage[row
* scanlineBytesXor + col
/ Q_INT64_C(2)];
colorIndex = colorIndex >> 4;
}
else
{
colorIndex = xorImage[row
* scanlineBytesXor + col
/ Q_INT64_C(2)] & 15;
}
if ((andImage[row * scanlineBytesAnd + col
/ (Q_INT64_C(8))] & masks[col
% (Q_INT64_C(8))]) != 0)
{
image.setPixel(
col,
realHeight - Q_INT64_C(1) - row,
qRgba(
qRed(
palette[static_cast<int> (
colorIndex)]),
qGreen(
palette[static_cast<int> (
colorIndex)]),
qBlue(
palette[static_cast<int> (
colorIndex)]),
0));
}
else
{
image.setPixel(
col,
realHeight - Q_INT64_C(1) - row,
qRgba(
qRed(
palette[static_cast<int> (
colorIndex)]),
qGreen(
static_cast<int> (palette[
colorIndex])),
qBlue(
palette[static_cast<int> (
colorIndex)]),
0xFF));
}
}
}
}
WinHelpPhrIndexFile::WinHelpPhrIndexFile(QFile &file, qint64 off) :
phrasesOffset(), phrasesBits()
{
PRINT_DBG("Loading WinHelp PhrIndex file at %lld", off);
seekFile(file, off);
InternalDirectoryFileHeader hdr(file, off);
seekFile(file, off + InternalDirectoryFileHeader::size);
quint32 magic = readUnsignedDWord(file);
PRINT_DBG(" Magic: %d", magic);
if (magic != 1)
{
throw std::runtime_error("Not a PhrIndex file");
}
quint32 nEntries = readUnsignedDWord(file);
PRINT_DBG(" nEntries: %d", nEntries);
quint32 compressedSize = readUnsignedDWord(file);
PRINT_DBG(" Compressed size: %d", compressedSize);
this->phrImageSize = static_cast<qint64> (readUnsignedDWord(file));
PRINT_DBG(" phrImage size: %lld", this->phrImageSize);
this->phrImageCompressedSize
= static_cast<qint64> (readUnsignedDWord(file));
PRINT_DBG(" phrImage compressed size: %lld",
this->phrImageCompressedSize);
quint32 alwaysZero = readUnsignedDWord(file);
PRINT_DBG(" Always zero: %d", alwaysZero);
if (alwaysZero != 0)
{
qDebug() << "Always zero phrIndex file field is non zero";
}
quint8 bitfieldL = readUnsignedByte(file);
PRINT_DBG(" Bitfield low byte: %d", bitfieldL);
quint8 bitfieldH = readUnsignedByte(file);
PRINT_DBG(" Bitfield high byte: %d", bitfieldH);
quint8 bitCount = bitfieldL & 0x0F;
PRINT_DBG(" Bitcount: %d", bitCount);
quint16 unknownValue = readUnsignedWord(file);
PRINT_DBG(" Unknown value: %d", unknownValue);
this->phrasesOffset.resize(nEntries + 1);
this->phrasesOffset[0] = 0;
PRINT_DBG(" Phrase offset: %d", this->phrasesOffset[0]);
IntAllignedCursor cur;
cur.currentBitIndex = 0;
cur.currentDwordByte0 = 0;
cur.currentDwordByte1 = 0;
cur.currentDwordByte2 = 0;
cur.currentDwordByte3 = 0;
for (quint32 i = 0; i < nEntries; i++)
{
uint n = 1;
while (this->getNextBitIntAlligned(file, cur))
{
n += static_cast<uint> (0x0001 << bitCount);
}
if (this->getNextBitIntAlligned(file, cur))
{
n += 1;
}
if (bitCount > 1)
{
if (this->getNextBitIntAlligned(file, cur))
{
n += 2;
}
}
if (bitCount > 2)
{
if (this->getNextBitIntAlligned(file, cur))
{
n += 4;
}
}
if (bitCount > 3)
{
if (this->getNextBitIntAlligned(file, cur))
{
n += 8;
}
}
if (bitCount > 4)
{
if (this->getNextBitIntAlligned(file, cur))
{
n += 16;
}
}
this->phrasesOffset[i + 1] = this->phrasesOffset[i] + n;
PRINT_DBG(" Phrase offset: %d", this->phrasesOffset[i + 1]);
}
this->phrasesBits.resize(nEntries);
ByteAllignedCursor bCur;
bCur.currentBitIndex = 0;
bCur.currentByte = 0;
for (quint32 index = 0; index < nEntries; index++)
{
if (this->getNextBitByteAlligned(file, bCur))
{
this->phrasesBits[index] = true;
PRINT_DBG(" Phrase bit is true");
}
else
{
this->phrasesBits[index] = false;
PRINT_DBG(" Phrase bit is false");
}
}
PRINT_DBG("WinHelp PhrIndex file loaded successfully");
}
