Common::SeekableReadStream *Resources::load(const Common::String &filename, const Common::String &libraryFile,
bool suppressErrors) {
// Open up the library for access
Common::SeekableReadStream *libStream = load(libraryFile);
// Check if the library has already had its index read, and if not, load it
if (!_indexes.contains(libraryFile))
loadLibraryIndex(libraryFile, libStream, false);
LibraryIndex &libIndex = _indexes[libraryFile];
// Handle if resource is not present
if (!libIndex.contains(filename)) {
if (!suppressErrors)
error("Could not find resource - %s", filename.c_str());
delete libStream;
return nullptr;
}
// Extract the data for the specified resource and return it
LibraryEntry &entry = libIndex[filename];
libStream->seek(entry._offset);
Common::SeekableReadStream *stream = libStream->readStream(entry._size);
decompressIfNecessary(stream);
delete libStream;
return stream;
}
Common::SeekableReadStream *HERFFile::getResource(uint32 index) const {
const IResource &res = getIResource(index);
if (res.size == 0)
return new Common::MemoryReadStream(0, 0);
Common::SeekableReadStream *herf = ResMan.getResource(TypeMan.setFileType(_fileName, kFileTypeNone), kFileTypeHERF);
if (!herf)
throw Common::Exception(Common::kOpenError);
if (!herf->seek(res.offset)) {
delete herf;
throw Common::Exception(Common::kSeekError);
}
Common::SeekableReadStream *resStream = herf->readStream(res.size);
if (!resStream || (((uint32) resStream->size()) != res.size)) {
delete herf;
delete resStream;
throw Common::Exception(Common::kReadError);
}
delete herf;
return resStream;
}
void ASFStream::parseStreamHeader() {
ASFGUID guid = ASFGUID(*_stream);
if (guid != s_asfAudioStream)
throw Common::Exception("ASFStream::parseStreamHeader(): Found non-audio stream");
_stream->skip(16); // skip a guid
_stream->readUint64LE(); // total size
uint32 typeSpecificSize = _stream->readUint32LE();
_stream->readUint32LE();
_streamID = _stream->readUint16LE();
_stream->readUint32LE();
// Parse the wave header
_compression = _stream->readUint16LE();
_channels = _stream->readUint16LE();
_sampleRate = _stream->readUint32LE();
_bitRate = _stream->readUint32LE() * 8;
_blockAlign = _stream->readUint16LE();
_bitsPerCodedSample = (typeSpecificSize == 14) ? 8 : _stream->readUint16LE();
if (typeSpecificSize >= 18) {
uint32 cbSize = _stream->readUint16LE();
cbSize = MIN<int>(cbSize, typeSpecificSize - 18);
_extraData = _stream->readStream(cbSize);
}
_codec = createCodec();
}
Common::SeekableReadStream *Resources::load(const Common::String &filename) {
// First check if the file is directly in the cache
if (_cache.isCached(filename))
return _cache.get(filename);
// Secondly, iterate through any loaded library file looking for a resource
// that has the same name
for (LibraryIndexes::iterator i = _indexes.begin(); i != _indexes.end(); ++i) {
if (i->_value.contains(filename)) {
// Get a stream reference to the given library file
Common::SeekableReadStream *stream = load(i->_key);
LibraryEntry &entry = i->_value[filename];
_resourceIndex = entry._index;
stream->seek(entry._offset);
Common::SeekableReadStream *resStream = stream->readStream(entry._size);
decompressIfNecessary(resStream);
delete stream;
return resStream;
}
}
// At this point, fall back on a physical file with the given name
Common::File f;
if (!f.open(filename))
error("Could not load file - %s", filename.c_str());
Common::SeekableReadStream *stream = f.readStream(f.size());
f.close();
decompressIfNecessary(stream);
return stream;
}
Common::SeekableReadStream *QuickTimeDecoder::VideoTrackHandler::getNextFramePacket(uint32 &descId) {
// First, we have to track down which chunk holds the sample and which sample in the chunk contains the frame we are looking for.
int32 totalSampleCount = 0;
int32 sampleInChunk = 0;
int32 actualChunk = -1;
uint32 sampleToChunkIndex = 0;
for (uint32 i = 0; i < _parent->chunkCount; i++) {
if (sampleToChunkIndex < _parent->sampleToChunkCount && i >= _parent->sampleToChunk[sampleToChunkIndex].first)
sampleToChunkIndex++;
totalSampleCount += _parent->sampleToChunk[sampleToChunkIndex - 1].count;
if (totalSampleCount > _curFrame) {
actualChunk = i;
descId = _parent->sampleToChunk[sampleToChunkIndex - 1].id;
sampleInChunk = _parent->sampleToChunk[sampleToChunkIndex - 1].count - totalSampleCount + _curFrame;
break;
}
}
if (actualChunk < 0) {
warning("Could not find data for frame %d", _curFrame);
return 0;
}
// Next seek to that frame
Common::SeekableReadStream *stream = _decoder->_fd;
stream->seek(_parent->chunkOffsets[actualChunk]);
// Then, if the chunk holds more than one frame, seek to where the frame we want is located
for (int32 i = _curFrame - sampleInChunk; i < _curFrame; i++) {
if (_parent->sampleSize != 0)
stream->skip(_parent->sampleSize);
else
stream->skip(_parent->sampleSizes[i]);
}
// Finally, read in the raw data for the frame
//debug("Frame Data[%d]: Offset = %d, Size = %d", _curFrame, stream->pos(), _parent->sampleSizes[_curFrame]);
if (_parent->sampleSize != 0)
return stream->readStream(_parent->sampleSize);
return stream->readStream(_parent->sampleSizes[_curFrame]);
}
void TPC::readTXI(Common::SeekableReadStream &tpc) {
const size_t txiDataSize = tpc.size() - tpc.pos();
if (txiDataSize == 0)
return;
Common::SeekableReadStream *txiData = tpc.readStream(txiDataSize);
try {
_txi.load(*txiData);
} catch (...) {
}
delete txiData;
}
bool CWaveFile::loadMusic(const CString &name) {
assert(!_stream);
StdCWadFile file;
if (!file.open(name))
return false;
Common::SeekableReadStream *stream = file.readStream();
_size = stream->size();
_stream = Audio::makeWAVStream(stream->readStream(_size), DisposeAfterUse::YES);
_soundType = Audio::Mixer::kMusicSoundType;
return true;
}
void LocString::readString(uint32 languageID, Common::SeekableReadStream &stream) {
uint32 length = stream.readUint32LE();
std::pair<StringMap::iterator, bool> s = _strings.insert(std::make_pair(languageID, ""));
if (length == 0)
return;
s.first->second = "[???]";
Common::ScopedPtr<Common::MemoryReadStream> data(stream.readStream(length));
Common::ScopedPtr<Common::MemoryReadStream> parsed(LangMan.preParseColorCodes(*data));
Common::Encoding encoding = LangMan.getEncodingLocString(LangMan.getLanguageGendered(languageID));
if (encoding != Common::kEncodingInvalid)
s.first->second = Common::readString(*parsed, encoding);
}
Common::SeekableReadStream *Resources::load(const Common::String &filename, const Common::String &libraryFile) {
// Open up the library for access
Common::SeekableReadStream *libStream = load(libraryFile);
// Check if the library has already had it's index read, and if not, load it
if (!_indexes.contains(libraryFile))
loadLibraryIndex(libraryFile, libStream, false);
// Extract the data for the specified resource and return it
LibraryEntry &entry = _indexes[libraryFile][filename];
libStream->seek(entry._offset);
Common::SeekableReadStream *stream = libStream->readStream(entry._size);
decompressIfNecessary(stream);
delete libStream;
return stream;
}
void LocString::readString(uint32 languageID, Common::SeekableReadStream &stream) {
uint32 length = stream.readUint32LE();
std::pair<StringMap::iterator, bool> s = _strings.insert(std::make_pair(languageID, ""));
if (length == 0)
return;
Common::MemoryReadStream *data = stream.readStream(length);
Common::MemoryReadStream *parsed = LangMan.preParseColorCodes(*data);
Common::Encoding encoding = LangMan.getEncodingLocString(LangMan.getLanguageGendered(languageID));
if (encoding == Common::kEncodingInvalid)
encoding = Common::kEncodingUTF8;
try {
s.first->second = Common::readString(*parsed, encoding);
} catch (...) {
parsed->seek(0);
s.first->second = Common::readString(*parsed, Common::kEncodingCP1252);
}
delete parsed;
delete data;
}
void RivenGraphics::scheduleWaterEffect(uint16 sfxeID) {
Common::SeekableReadStream *sfxeStream = _vm->getResource(ID_SFXE, sfxeID);
if (sfxeStream->readUint16BE() != 'SL')
error ("Unknown sfxe tag");
// Read in header info
SFXERecord sfxeRecord;
sfxeRecord.frameCount = sfxeStream->readUint16BE();
uint32 offsetTablePosition = sfxeStream->readUint32BE();
sfxeRecord.rect.left = sfxeStream->readUint16BE();
sfxeRecord.rect.top = sfxeStream->readUint16BE();
sfxeRecord.rect.right = sfxeStream->readUint16BE();
sfxeRecord.rect.bottom = sfxeStream->readUint16BE();
sfxeRecord.speed = sfxeStream->readUint16BE();
// Skip the rest of the fields...
// Read in offsets
sfxeStream->seek(offsetTablePosition);
uint32 *frameOffsets = new uint32[sfxeRecord.frameCount];
for (uint16 i = 0; i < sfxeRecord.frameCount; i++)
frameOffsets[i] = sfxeStream->readUint32BE();
sfxeStream->seek(frameOffsets[0]);
// Read in the scripts
for (uint16 i = 0; i < sfxeRecord.frameCount; i++)
sfxeRecord.frameScripts.push_back(sfxeStream->readStream((i == sfxeRecord.frameCount - 1) ? sfxeStream->size() - frameOffsets[i] : frameOffsets[i + 1] - frameOffsets[i]));
// Set it to the first frame
sfxeRecord.curFrame = 0;
sfxeRecord.lastFrameTime = 0;
delete[] frameOffsets;
delete sfxeStream;
_waterEffects.push_back(sfxeRecord);
}
ASFStream::Packet *ASFStream::readPacket() {
if (_curPacket == _packetCount)
throw Common::Exception("ASFStream::readPacket(): Reading too many packets");
uint32 packetStartPos = _stream->pos();
// Read a single ASF packet
if (_stream->readByte() != 0x82)
throw Common::Exception("ASFStream::readPacket(): Missing packet header");
if (_stream->readUint16LE() != 0)
throw Common::Exception("ASFStream::readPacket(): Unknown is not zero");
Packet *packet = new Packet();
packet->flags = _stream->readByte();
packet->segmentType = _stream->readByte();
packet->packetSize = (packet->flags & 0x40) ? _stream->readUint16LE() : 0;
uint16 paddingSize = 0;
if (packet->flags & 0x10)
paddingSize = _stream->readUint16LE();
else if (packet->flags & 0x08)
paddingSize = _stream->readByte();
packet->sendTime = _stream->readUint32LE();
packet->duration = _stream->readUint16LE();
byte segmentCount = (packet->flags & 0x01) ? _stream->readByte() : 1;
packet->segments.resize(segmentCount & 0x3F);
for (uint32 i = 0; i < packet->segments.size(); i++) {
Packet::Segment &segment = packet->segments[i];
segment.streamID = _stream->readByte();
segment.sequenceNumber = _stream->readByte();
segment.isKeyframe = (segment.streamID & 0x80) != 0;
segment.streamID &= 0x7F;
uint32 fragmentOffset = 0;
if (packet->segmentType == 0x55)
fragmentOffset = _stream->readByte();
else if (packet->segmentType == 0x59)
fragmentOffset = _stream->readUint16LE();
else if (packet->segmentType == 0x5D)
fragmentOffset = _stream->readUint32LE();
else
throw Common::Exception("ASFStream::readPacket(): Unknown packet segment type 0x%02x", packet->segmentType);
byte flags = _stream->readByte();
if (flags == 1) {
//uint32 objectStartTime = fragmentOffset; // reused purpose
_stream->readByte(); // unknown
uint32 dataLength = (packet->segments.size() == 1) ? (_maxPacketSize - (_stream->pos() - packetStartPos) - paddingSize) : _stream->readUint16LE();
uint32 startObjectPos = _stream->pos();
while ((uint32)_stream->pos() < dataLength + startObjectPos)
segment.data.push_back(_stream->readStream(_stream->readByte()));
} else if (flags == 8) {
/* uint32 objectLength = */ _stream->readUint32LE();
/* uint32 objectStartTime = */ _stream->readUint32LE();
uint32 dataLength = 0;
if (packet->segments.size() == 1)
dataLength = _maxPacketSize - (_stream->pos() - packetStartPos) - fragmentOffset - paddingSize;
else if (segmentCount & 0x40)
dataLength = _stream->readByte();
else
dataLength = _stream->readUint16LE();
_stream->skip(fragmentOffset);
segment.data.push_back(_stream->readStream(dataLength));
} else
throw Common::Exception("ASFStream::readPacket(): Unknown packet flags 0x%02x", flags);
}
// Skip any padding
_stream->skip(paddingSize);
// We just read a packet
_curPacket++;
if ((uint32)_stream->pos() != packetStartPos + _maxPacketSize)
throw Common::Exception("ASFStream::readPacket(): Mismatching packet pos: %d (should be %d)", _stream->pos(), _maxPacketSize + packetStartPos);
return packet;
}
void ConversationData::load(const Common::String &filename) {
Common::File inFile;
char buffer[16];
inFile.open(filename);
MadsPack convFileUnpacked(&inFile);
// **** Section 0: Header *************************************************
Common::SeekableReadStream *convFile = convFileUnpacked.getItemStream(0);
_nodeCount = convFile->readUint16LE();
_dialogCount = convFile->readUint16LE();
_messageCount = convFile->readUint16LE();
_textLineCount = convFile->readUint16LE();
_unk2 = convFile->readUint16LE();
_maxImports = convFile->readUint16LE();
_speakerCount = convFile->readUint16LE();
for (uint idx = 0; idx < MAX_SPEAKERS; ++idx) {
convFile->read(buffer, 16);
_portraits[idx] = buffer;
}
for (uint idx = 0; idx < MAX_SPEAKERS; ++idx) {
_speakerFrame[idx] = convFile->readUint16LE();
}
convFile->read(buffer, 14);
_speechFile = Common::String(buffer);
// Total text length in section 5
_textSize = convFile->readUint32LE();
_commandsSize = convFile->readUint32LE();
// The rest of the section 0 is padding to allow room for a set of pointers
// to the contents of the remaining sections loaded into memory as a
// continuous data block containing both the header and the sections
delete convFile;
// **** Section 1: Nodes **************************************************
convFile = convFileUnpacked.getItemStream(1);
_nodes.clear();
for (uint i = 0; i < _nodeCount; i++) {
ConvNode node;
node._index = convFile->readUint16LE();
node._dialogCount = convFile->readUint16LE();
node._unk1 = convFile->readSint16LE(); // TODO
node._active = convFile->readSint16LE() != 0;
node._unk3 = convFile->readSint16LE(); // TODO
_nodes.push_back(node);
}
delete convFile;
// **** Section 2: Dialogs ************************************************
convFile = convFileUnpacked.getItemStream(2);
assert(convFile->size() == _dialogCount * 8);
_dialogs.resize(_dialogCount);
for (uint idx = 0; idx < _dialogCount; ++idx) {
_dialogs[idx]._textLineIndex = convFile->readSint16LE();
_dialogs[idx]._speechIndex = convFile->readSint16LE();
_dialogs[idx]._scriptOffset = convFile->readUint16LE();
_dialogs[idx]._scriptSize = convFile->readUint16LE();
}
delete convFile;
// **** Section 3: Messages ***********************************************
convFile = convFileUnpacked.getItemStream(3);
assert(convFile->size() == _messageCount * 4);
_messages.resize(_messageCount);
for (uint idx = 0; idx < _messageCount; ++idx) {
_messages[idx]._stringIndex = convFile->readUint16LE();
_messages[idx]._count = convFile->readUint16LE();
}
delete convFile;
// **** Section 4: Text line offsets **************************************
convFile = convFileUnpacked.getItemStream(4);
assert(convFile->size() == _textLineCount * 2);
uint16 *textLineOffsets = new uint16[_textLineCount]; // deleted below in section 5
for (uint16 i = 0; i < _textLineCount; i++)
textLineOffsets[i] = convFile->readUint16LE();
delete convFile;
// **** Section 5: Text lines *********************************************
convFile = convFileUnpacked.getItemStream(5);
assert(convFile->size() == _textSize);
Common::String textLine;
_textLines.resize(_textLineCount);
char textLineBuffer[256];
uint16 nextOffset;
for (uint16 i = 0; i < _textLineCount; i++) {
nextOffset = (i != _textLineCount - 1) ? textLineOffsets[i + 1] : convFile->size();
convFile->read(textLineBuffer, nextOffset - textLineOffsets[i]);
_textLines[i] = Common::String(textLineBuffer);
}
delete[] textLineOffsets;
delete convFile;
// **** Section 6: Scripts ************************************************
convFile = convFileUnpacked.getItemStream(6);
assert(convFile->size() == _commandsSize);
for (uint idx = 0; idx < _dialogs.size(); ++idx) {
// Move to the correct position for the dialog's script, and create
// a memory stream to represent the data for just that script
convFile->seek(_dialogs[idx]._scriptOffset);
Common::SeekableReadStream *scriptStream = convFile->readStream(_dialogs[idx]._scriptSize);
// Pass it to the dialog's script set class to parse into commands
_dialogs[idx]._script.load(*scriptStream, _dialogs[idx]._scriptOffset);
delete scriptStream;
}
delete convFile;
inFile.close();
}
