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A much more sane raster tabel load...

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This commit is contained in:
Martin Tůma 2021-02-10 21:26:26 +01:00
parent af3b41cc92
commit a2390ae26f
2 changed files with 50 additions and 44 deletions
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67
src/map/IMG/lblfile.cpp
View File

@ -55,11 +55,24 @@ static QString capitalized(const QString &str)
return ret;
}
static quint8 byteSize(quint32 val)
{
quint8 ret = 0;
do {
ret++;
val = val >> 8;
} while (val != 0);
return ret;
}
LBLFile::~LBLFile()
{
delete _huffmanText;
delete[] _table;
delete[] _rasters;
}
bool LBLFile::load(Handle &hdl, const RGNFile *rgn, Handle &rgnHdl)
@ -101,18 +114,9 @@ bool LBLFile::load(Handle &hdl, const RGNFile *rgn, Handle &rgnHdl)
&& readUInt32(hdl, _imgSize)))
return false;
if (size && recordSize) {
quint32 count = size / recordSize;
quint32 maxId = count - 1;
_imgOffsetIdSize = 0;
do {
_imgOffsetIdSize++;
maxId = maxId >> 8;
} while (maxId != 0);
if (!loadFiles(hdl, count, offset, recordSize))
if (size && recordSize)
if (!loadRasterTable(hdl, offset, size, recordSize))
return false;
}
}
if (_encoding == 11) {
@ -130,8 +134,10 @@ void LBLFile::clear()
{
delete _huffmanText;
delete[] _table;
delete[] _rasters;
_huffmanText = 0;
_table = 0;
_rasters = 0;
}
Label LBLFile::label6b(Handle &hdl, quint32 offset, bool capitalize) const
@ -306,41 +312,44 @@ Label LBLFile::label(Handle &hdl, quint32 offset, bool poi, bool capitalize) con
}
}
bool LBLFile::loadFiles(Handle &hdl, quint32 count, quint32 offset,
bool LBLFile::loadRasterTable(Handle &hdl, quint32 offset, quint32 size,
quint32 recordSize)
{
_rasters.resize(count);
quint32 prev, cur;
for (quint32 i = 0; i < count; i++) {
quint32 currentOffset, nextOffset, size;
_imgCount = size / recordSize;
_imgOffsetIdSize = byteSize(_imgCount - 1);
_rasters = new Image[_imgCount];
if (!(seek(hdl, offset + i * recordSize)
&& readVUInt32(hdl, recordSize, currentOffset)))
if (!(seek(hdl, offset) && readVUInt32(hdl, recordSize, prev)))
return false;
for (quint32 i = 1; i < _imgCount; i++) {
if (!readVUInt32(hdl, recordSize, cur))
return false;
if (i == count - 1)
nextOffset = _imgSize;
else {
if (!readVUInt32(hdl, recordSize, nextOffset))
return false;
}
size = nextOffset - currentOffset;
_rasters[i] = File(currentOffset, size);
_rasters[i-1].offset = prev;
_rasters[i-1].size = cur - prev;
prev = cur;
}
_rasters[_imgCount-1].offset = prev;
_rasters[_imgCount-1].size = _imgSize - prev;
return true;
}
QImage LBLFile::readImage(Handle &hdl, quint32 id) const
{
if (id >= (quint32)_rasters.size())
if (id >= _imgCount)
return QImage();
if (!seek(hdl, _imgOffset + _rasters.at(id).offset))
if (!seek(hdl, _imgOffset + _rasters[id].offset))
return QImage();
QByteArray ba;
ba.resize(_rasters.at(id).size);
if (!read(hdl, ba.data(), _rasters.at(id).size))
ba.resize(_rasters[id].size);
if (!read(hdl, ba.data(), _rasters[id].size))
return QImage();
return QImage::fromData(ba);

27
src/map/IMG/lblfile.h
View File

@ -13,17 +13,17 @@ class LBLFile : public SubFile
{
public:
LBLFile(const IMG *img)
: SubFile(img), _huffmanText(0), _table(0), _offset(0), _size(0),
_poiOffset(0), _poiSize(0), _imgOffsetIdSize(0), _poiMultiplier(0),
_multiplier(0), _encoding(0) {}
: SubFile(img), _huffmanText(0), _table(0), _rasters(0), _offset(0),
_size(0), _poiOffset(0), _poiSize(0), _imgOffsetIdSize(0),
_poiMultiplier(0), _multiplier(0), _encoding(0) {}
LBLFile(const QString *path)
: SubFile(path), _huffmanText(0), _table(0), _offset(0), _size(0),
: SubFile(path), _huffmanText(0), _table(0), _rasters(0), _offset(0),
_size(0), _poiOffset(0), _poiSize(0), _imgOffsetIdSize(0),
_poiMultiplier(0), _multiplier(0), _encoding(0) {}
LBLFile(const SubFile *gmp, quint32 offset) : SubFile(gmp, offset),
_huffmanText(0), _table(0), _rasters(0), _offset(0), _size(0),
_poiOffset(0), _poiSize(0), _imgOffsetIdSize(0), _poiMultiplier(0),
_multiplier(0), _encoding(0) {}
LBLFile(const SubFile *gmp, quint32 offset) : SubFile(gmp, offset),
_huffmanText(0), _table(0), _offset(0), _size(0), _poiOffset(0),
_poiSize(0), _imgOffsetIdSize(0), _poiMultiplier(0), _multiplier(0),
_encoding(0) {}
~LBLFile();
bool load(Handle &hdl, const RGNFile *rgn, Handle &rgnHdl);
@ -36,10 +36,7 @@ public:
QImage readImage(Handle &hdl, quint32 id) const;
private:
struct File {
File() : offset(0), size(0) {}
File(quint32 offset, quint32 size) : offset(offset), size(size) {}
struct Image {
quint32 offset;
quint32 size;
};
@ -48,11 +45,12 @@ private:
Label label6b(Handle &hdl, quint32 offset, bool capitalize) const;
Label label8b(Handle &hdl, quint32 offset, bool capitalize) const;
Label labelHuffman(Handle &hdl, quint32 offset, bool capitalize) const;
bool loadFiles(Handle &hdl, quint32 count, quint32 offset,
bool loadRasterTable(Handle &hdl, quint32 offset, quint32 size,
quint32 recordSize);
HuffmanText *_huffmanText;
quint32 *_table;
Image *_rasters;
TextCodec _codec;
quint32 _offset;
quint32 _size;
@ -60,12 +58,11 @@ private:
quint32 _poiSize;
quint32 _imgOffset;
quint32 _imgSize;
quint32 _imgCount;
quint8 _imgOffsetIdSize;
quint8 _poiMultiplier;
quint8 _multiplier;
quint8 _encoding;
QVector<File> _rasters;
};
#endif // LBLFILE_H