bool SaveHeader::read(Common::ReadStream &stream) {
// Read the header and verify the global IDs
if (stream.readUint32BE() != kID1)
return false;
if (stream.readUint32BE() != kID2)
return false;
_type = stream.readUint32BE();
_version = stream.readUint32LE();
_size = stream.readUint32LE();
return !stream.err();
}
bool SaveHeader::verify(Common::ReadStream &stream) const {
// Compare the header with the stream's content
if (stream.readUint32BE() != kID1)
return false;
if (stream.readUint32BE() != kID2)
return false;
if (stream.readUint32BE() != _type)
return false;
if (stream.readUint32LE() != _version)
return false;
if (stream.readUint32LE() != _size)
return false;
return !stream.err();
}
XARCMember::XARCMember(const XARCArchive *xarc, Common::ReadStream &stream, uint32 offset) {
_xarc = xarc;
// Read the information about this archive member
_name = readString(stream);
_offset = offset;
_length = stream.readUint32LE();
debugC(20, kDebugArchive, "Stark::XARC Member: \"%s\" starts at offset=%d and has length=%d", _name.c_str(), _offset, _length);
// Unknown value. English: 0, others: 1
uint32 unknown = stream.readUint32LE();
debugC(kDebugUnknown, "Stark::XARC Member: \"%s\" has unknown=%d", _name.c_str(), unknown);
if (unknown != 0 && unknown != 1) {
warning("Stark::XARC Member: \"%s\" has unknown=%d with unknown meaning", _name.c_str(), unknown);
}
}
bool SaveHeader::verifyReadSize(Common::ReadStream &stream) {
// Compare the header with the stream's content, expect for the size
if (stream.readUint32BE() != kID1)
return false;
if (stream.readUint32BE() != kID2)
return false;
if (stream.readUint32BE() != _type)
return false;
if (stream.readUint32LE() != _version)
return false;
// Read the size out of the stream instead
_size = stream.readUint32LE();
return !stream.err();
}
bool SavePartSprite::read(Common::ReadStream &stream) {
SaveHeader header;
header.read(stream);
if (_header != header) {
if (!_trueColor) {
// Header validation failed, trying again with the old version
_header.setVersion(1);
_header.setSize(_header.getSize() - 1);
if (_header != header)
// Nope, isn't it either
return false;
_oldFormat = true;
_header.setVersion(kVersion);
_header.setSize(_header.getSize() + 1);
} else
return false;
}
// The sprite's dimensions have to fit
if (stream.readUint32LE() != _width)
return false;
if (stream.readUint32LE() != _height)
return false;
// If it's in the current format, the true color flag has to be the same too
if (!_oldFormat)
if ((stream.readByte() != 0) != _trueColor)
return false;
// Sprite data
if (stream.read(_dataSprite, _spriteSize) != _spriteSize)
return false;
// Palette data
if (stream.read(_dataPalette, 768) != 768)
return false;
return !stream.err();
}
Common::String readLAString(Common::ReadStream &ms) {
int strLength = ms.readUint32LE();
char* readString = new char[strLength];
ms.read(readString, strLength);
Common::String retVal(readString);
delete[] readString;
return retVal;
}
bool SaveContainer::read(Common::ReadStream &stream) {
// Verify the header and get the container's size
if (!_header.verifyReadSize(stream))
return false;
// The part count has to be correct
if (stream.readUint32LE() != _partCount)
return false;
// Iterate over all parts
for (PartIterator it = _parts.begin(); it != _parts.end(); ++it) {
// Read the size
uint32 size = stream.readUint32LE();
if (stream.err()) {
clear();
return false;
}
Part *&p = *it;
delete p;
// Create a suitable part
p = new Part(size);
}
// Update size
_header.setSize(calcSize());
// Iterate over all parts
for (PartIterator it = _parts.begin(); it != _parts.end(); ++it) {
Part *&p = *it;
// Read the part
if (stream.read(p->data, p->size) != p->size) {
clear();
return false;
}
}
return !stream.err();
}
bool SavePartInfo::read(Common::ReadStream &stream) {
if (!_header.verify(stream))
return false;
if (stream.readUint32LE() != _gameID)
return false;
if (stream.readUint32LE() != _gameVersion)
return false;
if (stream.readByte() != _endian)
return false;
if (stream.readUint32LE() != _varCount)
return false;
if (stream.readUint32LE() != _descMaxLength)
return false;
if (stream.read(_desc, _descMaxLength) != _descMaxLength)
return false;
_desc[_descMaxLength] = 0;
return !stream.err();
}
void Display::loadFrameBuffer(Common::ReadStream &stream) {
byte *dst = _frameBuf;
for (uint j = 0; j < 8; ++j) {
for (uint i = 0; i < 8; ++i) {
stream.read(dst, DISPLAY_PITCH);
dst += DISPLAY_PITCH * 64;
stream.read(dst, DISPLAY_PITCH);
dst += DISPLAY_PITCH * 64;
stream.read(dst, DISPLAY_PITCH);
stream.readUint32LE();
stream.readUint32LE();
dst -= DISPLAY_PITCH * 120;
}
dst -= DISPLAY_PITCH * 63;
}
if (stream.eos() || stream.err())
error("Failed to read frame buffer");
}
/*-----------------------------------------------------------------------
* BtPage
*-----------------------------------------------------------------------*/
void BtPage::readBTree(Common::ReadStream &s) {
_header._count = s.readUint16LE();
_header._down = s.readUint16LE();
if (_header._down == kBtValNone) {
// Leaf list
for (int i = 0; i < kBtLeafCount; ++i) {
s.read(_leaf[i]._key, kBtKeySize);
_leaf[i]._pos = s.readUint32LE();
_leaf[i]._size = s.readUint16LE();
}
} else {
// Root index
for (int i = 0; i < kBtInnerCount; ++i) {
s.read(_inner[i]._key, kBtKeySize);
_inner[i]._down = s.readUint16LE();
}
}
}
void operator()(Uint32& i) const {
i = _s->readUint32LE();
}
