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Improved error handling

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This commit is contained in:
Martin Tůma 2022-02-06 11:53:43 +01:00
parent 6564c61b00
commit 36220dbc9c
3 changed files with 31 additions and 30 deletions
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37
src/map/IMG/lblfile.cpp
View File

@ -180,8 +180,8 @@ Label LBLFile::str2label(const QVector<quint8> &str, bool capitalize,
Shield(shieldType, _codec.toString(shieldLabel)));
}
Label LBLFile::label6b(const SubFile *file, Handle &fileHdl, bool capitalize,
bool convert) const
Label LBLFile::label6b(const SubFile *file, Handle &fileHdl, quint32 size,
bool capitalize, bool convert) const
{
Shield::Type shieldType = Shield::None;
QByteArray label, shieldLabel;
@ -190,7 +190,7 @@ Label LBLFile::label6b(const SubFile *file, Handle &fileHdl, bool capitalize,
quint8 b1, b2, b3;
int split = -1;
while (true) {
for (quint32 i = 0; i < size; i = i + 3) {
if (!(file->readByte(fileHdl, &b1) && file->readByte(fileHdl, &b2)
&& file->readByte(fileHdl, &b3)))
return Label();
@ -242,29 +242,33 @@ Label LBLFile::label6b(const SubFile *file, Handle &fileHdl, bool capitalize,
}
}
}
return Label();
}
Label LBLFile::label8b(const SubFile *file, Handle &fileHdl, bool capitalize,
bool convert) const
Label LBLFile::label8b(const SubFile *file, Handle &fileHdl, quint32 size,
bool capitalize, bool convert) const
{
QVector<quint8> str;
quint8 c;
do {
for (quint32 i = 0; i < size; i++) {
if (!file->readByte(fileHdl, &c))
return Label();
break;
str.append(c);
} while (c);
if (!c)
return str2label(str, capitalize, convert);
}
return str2label(str, capitalize, convert);
return Label();
}
Label LBLFile::labelHuffman(Handle &hdl, const SubFile *file, Handle &fileHdl,
bool capitalize, bool convert) const
quint32 size, bool capitalize, bool convert) const
{
QVector<quint8> str;
if (!_huffmanText->decode(file, fileHdl, 0xFFFFFFFF, str))
if (!_huffmanText->decode(file, fileHdl, size, str))
return Label();
if (!_table)
return str2label(str, capitalize, convert);
@ -319,20 +323,21 @@ Label LBLFile::label(Handle &hdl, quint32 offset, bool poi, bool capitalize,
if (!seek(hdl, labelOffset))
return Label();
return label(hdl, this, hdl, capitalize, convert);
return label(hdl, this, hdl, _offset + _size - labelOffset, capitalize,
convert);
}
Label LBLFile::label(Handle &hdl, const SubFile *file, Handle &fileHdl,
bool capitalize, bool convert) const
quint32 size, bool capitalize, bool convert) const
{
switch (_encoding) {
case 6:
return label6b(file, fileHdl, capitalize, convert);
return label6b(file, fileHdl, size, capitalize, convert);
case 9:
case 10:
return label8b(file, fileHdl, capitalize, convert);
return label8b(file, fileHdl, size, capitalize, convert);
case 11:
return labelHuffman(hdl, file, fileHdl, capitalize, convert);
return labelHuffman(hdl, file, fileHdl, size, capitalize, convert);
default:
return Label();
}

12
src/map/IMG/lblfile.h
View File

@ -34,7 +34,7 @@ public:
Label label(Handle &hdl, quint32 offset, bool poi = false,
bool capitalize = true, bool convert = false) const;
Label label(Handle &hdl, const SubFile *file, Handle &fileHdl,
bool capitalize = true, bool convert = false) const;
quint32 size, bool capitalize = true, bool convert = false) const;
quint8 imageIdSize() const {return _imgOffsetIdSize;}
QPixmap image(Handle &hdl, quint32 id) const;
@ -47,12 +47,12 @@ private:
Label str2label(const QVector<quint8> &str, bool capitalize,
bool convert) const;
Label label6b(const SubFile *file, Handle &fileHdl, bool capitalize,
bool convert) const;
Label label8b(const SubFile *file, Handle &fileHdl, bool capitalize,
bool convert) const;
Label labelHuffman(Handle &hdl, const SubFile *file, Handle &fileHdl,
Label label6b(const SubFile *file, Handle &fileHdl, quint32 size,
bool capitalize, bool convert) const;
Label label8b(const SubFile *file, Handle &fileHdl, quint32 size,
bool capitalize, bool convert) const;
Label labelHuffman(Handle &hdl, const SubFile *file, Handle &fileHdl,
quint32 size, bool capitalize, bool convert) const;
bool loadRasterTable(Handle &hdl, quint32 offset, quint32 size,
quint32 recordSize);

12
src/map/IMG/rgnfile.cpp
View File

@ -64,6 +64,8 @@ bool RGNFile::readClassFields(Handle &hdl, SegmentType segmentType,
break;
}
quint32 off = pos(hdl);
if (poly && Style::isRaster(poly->type) && lbl && lbl->imageIdSize()) {
quint32 id;
quint32 top, right, bottom, left;
@ -77,20 +79,14 @@ bool RGNFile::readClassFields(Handle &hdl, SegmentType segmentType,
poly->raster = Raster(lbl, id, QRect(QPoint(left, top), QPoint(right,
bottom)));
rs -= lbl->imageIdSize() + 16;
}
if (point && (flags & 1) && lbl) {
quint32 p = pos(hdl);
point->label = lbl->label(lblHdl, this, hdl);
point->label = lbl->label(lblHdl, this, hdl, rs);
point->classLabel = true;
Q_ASSERT(pos(hdl) - p <= rs + 4);
seek(hdl, p);
}
return seek(hdl, pos(hdl) + rs);
return seek(hdl, off + rs);
}
bool RGNFile::skipLclFields(Handle &hdl, const quint32 flags[3]) const