// multi-part ISO support is provided for FAT32 compatibility; so that large 4GB+ isos
// can be split into multiple smaller files.
//
// Returns TRUE if multiple parts for the ISO are found. Returns FALSE if only one
// part is found.
void isoFile::FindParts()
{
wxFileName nameparts( m_filename );
wxString curext( nameparts.GetExt() );
wxChar prefixch = wxTolower(curext[0]);
// Multi-part rules!
// * The first part can either be the proper extension (ISO, MDF, etc) or the numerical
// extension (I00, I01, M00, M01, etc).
// * Numerical extensions MUST begin at 00 (I00 etc), regardless of if the first part
// is proper or numerical.
uint i = 0;
if ((curext.Length() == 3) && (curext[1] == L'0') && (curext[2] == L'0'))
{
// First file is an OO, so skip 0 in the loop below:
i = 1;
}
FastFormatUnicode extbuf;
extbuf.Write( L"%c%02u", prefixch, i );
nameparts.SetExt( extbuf );
if (!pxFileExists_WithExt(nameparts, extbuf)) return;
DevCon.WriteLn( Color_Blue, "isoFile: multi-part %s detected...", curext.Upper().c_str() );
ConsoleIndentScope indent;
for (; i < MaxSplits; ++i)
{
extbuf.Clear();
extbuf.Write( L"%c%02u", prefixch, i );
if (!pxFileExists_WithExt(nameparts, extbuf)) break;
_IsoPart& thispart( m_parts[m_numparts] );
thispart.handle = new wxFileInputStream( nameparts.GetFullPath() );
pxStream_OpenCheck( *thispart.handle, nameparts.GetFullPath(), L"reading" );
m_blocks += thispart.CalculateBlocks( m_blocks, m_blocksize );
DevCon.WriteLn( Color_Blue, L"\tblocks %u - %u in: %s",
thispart.slsn, thispart.elsn,
nameparts.GetFullPath().c_str()
);
++m_numparts;
}
//Console.WriteLn( Color_Blue, "isoFile: multi-part ISO loaded (%u parts found)", m_numparts );
}
void MultipartFileReader::FindParts()
{
wxFileName nameparts( m_filename );
wxString curext( nameparts.GetExt() );
wxChar prefixch = wxTolower(curext[0]);
// Multi-part rules!
// * The first part can either be the proper extension (ISO, MDF, etc) or the numerical
// extension (I00, I01, M00, M01, etc).
// * Numerical extensions MUST begin at 00 (I00 etc), regardless of if the first part
// is proper or numerical.
uint i = 0;
if ((curext.Length() == 3) && (curext[1] == L'0') && (curext[2] == L'0'))
{
// First file is an OO, so skip 0 in the loop below:
i = 1;
}
FastFormatUnicode extbuf;
extbuf.Write( L"%c%02u", prefixch, i );
nameparts.SetExt( extbuf );
if (!pxFileExists_WithExt(nameparts, extbuf))
return;
DevCon.WriteLn( Color_Blue, "isoFile: multi-part %s detected...", WX_STR(curext.Upper()) );
ConsoleIndentScope indent;
int bsize = m_parts[0].reader->GetBlockSize();
int blocks = m_parts[0].end;
m_numparts = 1;
for (; i < MaxParts; ++i)
{
extbuf.Clear();
extbuf.Write( L"%c%02u", prefixch, i );
nameparts.SetExt( extbuf );
if (!pxFileExists_WithExt(nameparts, extbuf))
break;
Part* thispart = m_parts + m_numparts;
AsyncFileReader* thisreader = thispart->reader = new FlatFileReader();
wxString name = nameparts.GetFullPath();
thisreader->Open(name);
thisreader->SetBlockSize(bsize);
thispart->start = blocks;
uint bcount = thisreader->GetBlockCount();
blocks += bcount;
thispart->end = blocks;
DevCon.WriteLn( Color_Blue, L"\tblocks %u - %u in: %s",
thispart->start, thispart->end,
WX_STR(nameparts.GetFullPath())
);
++m_numparts;
}
//Console.WriteLn( Color_Blue, "isoFile: multi-part ISO loaded (%u parts found)", m_numparts );
}