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A little bit more sane subfile interface

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This commit is contained in:
Martin Tůma 2020-08-26 17:58:21 +02:00
parent 5343a1a922
commit 0b5d01a1f6
7 changed files with 22 additions and 23 deletions
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10
src/map/IMG/bitstream.cpp
View File

@ -32,7 +32,7 @@ bool BitStream1::read(int bits, quint32 &val)
bool BitStream1::flush()
{
if (_length && !_file.seek(_hdl, _hdl.pos() + _length))
if (_length && !_file.seek(_hdl, _file.pos(_hdl) + _length))
return false;
_length = 0;
@ -43,7 +43,7 @@ bool BitStream1::flush()
bool BitStream4::flush()
{
if (_length && !_file.seek(_hdl, _hdl.pos() + _length))
if (_length && !_file.seek(_hdl, _file.pos(_hdl) + _length))
return false;
_length = 0;
@ -82,7 +82,7 @@ bool BitStream4F::read(int bits, quint32 &val)
BitStream4R::BitStream4R(const SubFile &file, SubFile::Handle &hdl,
quint32 length) : BitStream4(file, hdl, length)
{
_file.seek(_hdl, _hdl.pos() - 4);
_file.seek(_hdl, _file.pos(_hdl) - 4);
}
bool BitStream4R::readBytes(int bytes, quint32 &val)
@ -169,14 +169,14 @@ bool BitStream4R::skip(quint32 bytes)
else {
quint32 seek = ((bytes - ab)/4)*4;
quint32 read = (bytes - ab)%4;
if (seek && !_file.seek(_hdl, _hdl.pos() - seek))
if (seek && !_file.seek(_hdl, _file.pos(_hdl) - seek))
return false;
_length -= seek;
if (read) {
quint32 rb = qMin(_length, 4U);
if (!_file.readUInt32(_hdl, _data))
return false;
if (!_file.seek(_hdl, _hdl.pos() - 8))
if (!_file.seek(_hdl, _file.pos(_hdl) - 8))
return false;
_length -= rb;
_unused = (4 - rb) * 8;

2
src/map/IMG/bitstream.h
View File

@ -73,7 +73,7 @@ bool BitStream4R::read(int bits, T &val)
if (!_file.readUInt32(_hdl, _data))
return false;
if (!_file.seek(_hdl, _hdl.pos() - 8))
if (!_file.seek(_hdl, _file.pos(_hdl) - 8))
return false;
_length -= bytes;

2
src/map/IMG/huffmantable.cpp
View File

@ -57,7 +57,7 @@ bool HuffmanTable::getBuffer(const SubFile &file, SubFile::Handle &hdl,
return false;
if (!file.readVUInt32(hdl, recordSize))
return false;
recordOffset = hdl.pos() + recordSize;
recordOffset = file.pos(hdl) + recordSize;
if (recordOffset > offset + size)
return false;
};

24
src/map/IMG/rgnfile.cpp
View File

@ -51,7 +51,7 @@ bool RGNFile::skipClassFields(Handle &hdl) const
break;
}
return seek(hdl, hdl.pos() + rs);
return seek(hdl, pos(hdl) + rs);
}
bool RGNFile::skipLclFields(Handle &hdl, const quint32 flags[3]) const
@ -73,7 +73,7 @@ bool RGNFile::skipLclFields(Handle &hdl, const quint32 flags[3]) const
return false;
} else
skip = m + 1;
if (!seek(hdl, hdl.pos() + skip))
if (!seek(hdl, pos(hdl) + skip))
return false;
}
bitfield >>= 1;
@ -93,7 +93,7 @@ bool RGNFile::skipGblFields(Handle &hdl, quint32 flags) const
flags = flags >> 2;
} while (flags != 0);
return seek(hdl, hdl.pos() + cnt);
return seek(hdl, pos(hdl) + cnt);
}
bool RGNFile::init(Handle &hdl)
@ -158,7 +158,7 @@ bool RGNFile::polyObjects(Handle &hdl, const SubDiv *subdiv,
qint16 lon, lat;
quint16 len;
while (hdl.pos() < (int)segment.end()) {
while (pos(hdl) < segment.end()) {
IMG::Poly poly;
if (!(readUInt8(hdl, type) && readUInt24(hdl, labelPtr)
@ -233,7 +233,7 @@ bool RGNFile::extPolyObjects(Handle &hdl, const SubDiv *subdiv, quint32 shift,
if (!seek(hdl, segment.offset()))
return false;
while (hdl.pos() < (int)segment.end()) {
while (pos(hdl) < segment.end()) {
IMG::Poly poly;
QPoint pos;
@ -241,7 +241,7 @@ bool RGNFile::extPolyObjects(Handle &hdl, const SubDiv *subdiv, quint32 shift,
&& readInt16(hdl, lon) && readInt16(hdl, lat)
&& readVUInt32(hdl, len)))
return false;
Q_ASSERT(hdl.pos() + len <= segment.end());
Q_ASSERT(SubFile::pos(hdl) + len <= segment.end());
poly.type = 0x10000 | (quint16(type)<<8) | (subtype & 0x1F);
labelPtr = 0;
@ -341,7 +341,7 @@ bool RGNFile::pointObjects(Handle &hdl, const SubDiv *subdiv,
if (!seek(hdl, segment.offset()))
return false;
while (hdl.pos() < (int)segment.end()) {
while (pos(hdl) < segment.end()) {
IMG::Point point;
quint8 type, subtype;
qint16 lon, lat;
@ -384,7 +384,7 @@ bool RGNFile::extPointObjects(Handle &hdl, const SubDiv *subdiv, LBLFile *lbl,
if (!seek(hdl, segment.offset()))
return false;
while (hdl.pos() < (int)segment.end()) {
while (pos(hdl) < segment.end()) {
IMG::Point point;
qint16 lon, lat;
quint8 type, subtype;
@ -441,11 +441,11 @@ bool RGNFile::links(Handle &hdl, const SubDiv *subdiv, NETFile *net,
if (!(blockIndexIdSize = nod->indexIdSize(nodHdl)))
return false;
while (hdl.pos() < (int)segment.end()) {
while (pos(hdl) < segment.end()) {
if (!readVUInt32(hdl, size))
return false;
int pos = hdl.pos();
quint32 pos = SubFile::pos(hdl);
if (!(readUInt8(hdl, flags) && readVUInt32(hdl, blockIndexIdSize,
blockIndexId)))
@ -482,7 +482,7 @@ bool RGNFile::links(Handle &hdl, const SubDiv *subdiv, NETFile *net,
lineId = (((v16 >> shift) >> 8) & 3) + 1;
if (shift < 6 && i < b8 + b10 + b16 - 1)
seek(hdl, hdl.pos() - 1);
seek(hdl, SubFile::pos(hdl) - 1);
} else {
linkId = (quint8)v16;
lineId = v16 >> 8;
@ -498,7 +498,7 @@ bool RGNFile::links(Handle &hdl, const SubDiv *subdiv, NETFile *net,
_huffmanTable, lines);
}
Q_ASSERT(pos + (int)size == hdl.pos());
Q_ASSERT(pos + size == SubFile::pos(hdl));
}
return true;

2
src/map/IMG/style.cpp
View File

@ -359,7 +359,7 @@ static bool skipLocalization(SubFile *file, SubFile::Handle &hdl)
len = len >> 2;
}
if (!file->seek(hdl, hdl.pos() + len))
if (!file->seek(hdl, file->pos(hdl) + len))
return false;
return true;

3
src/map/IMG/subfile.h
View File

@ -28,8 +28,6 @@ public:
}
~Handle() {delete _file;}
int pos() const {return _pos;}
private:
friend class SubFile;
@ -57,6 +55,7 @@ public:
void addBlock(quint16 block) {_blocks->append(block);}
bool seek(Handle &handle, quint32 pos) const;
quint32 pos(Handle &handle) const {return handle._pos;}
template<typename T>
bool readUInt8(Handle &handle, T &val) const

2
src/map/IMG/trefile.cpp
View File

@ -233,7 +233,7 @@ bool TREFile::load(int idx)
if (i)
sl.at(i-1)->setExtEnds(polygons, lines, points);
if (!seek(hdl, hdl.pos() + _extended.itemSize - rb))
if (!seek(hdl, pos(hdl) + _extended.itemSize - rb))
goto error;
}