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GPXSee/src/map/IMG/netfile.cpp

30 lines
525 B
C++

#include "netfile.h"
bool NETFile::init()
{
Handle hdl;
quint8 multiplier;
if (!(seek(hdl, 0x15) && readUInt32(hdl, _offset)
&& readUInt32(hdl, _size) && readByte(hdl, multiplier)))
return false;
_multiplier = 1<<multiplier;
return true;
}
bool NETFile::lblOffset(Handle &hdl, quint32 netOffset, quint32 &lblOffset)
{
if (!_multiplier && !init())
return false;
if (!(seek(hdl, _offset + netOffset * _multiplier)
&& readUInt24(hdl, lblOffset)))
return false;
lblOffset &= 0x3FFFFF;
return true;
}