private SidTuneBase getFromBuffer(byte[] buffer, UInt32 bufferLen)
{
if (buffer == null || bufferLen == 0)
{
throw new loadError(ERR_EMPTY);
}
if (bufferLen > MAX_FILELEN)
{
throw new loadError(ERR_FILE_TOO_LONG);
}
byte[] buf1 = buffer;//, buffer +bufferLen);
// Here test for the possible single file formats.
SidTuneBase s = PSID.load(ref buf1);
if (s == null)
{
s = (new MUS()).load(buf1.ToArray(), true);
}
if (s == null)
{
throw new loadError(ERR_UNRECOGNIZED_FORMAT);
}
List <byte> lstBuf1 = new List <byte>(buf1);
s.acceptSidTune("-", "-", ref lstBuf1, false);
return(s);
}
// Initializing the object based upon what we find in the specified file.
private SidTuneBase getFromFiles(string fileName, string[] fileNameExtensions, bool separatorIsSlash)
{
List <byte> fileBuf1 = new List <byte>();
loadFile(fileName, ref fileBuf1);
// File loaded. Now check if it is in a valid single-file-format.
byte[] aryFileBuf1 = fileBuf1.ToArray();
SidTuneBase s = PSID.load(ref aryFileBuf1);
fileBuf1 = new List <byte>(aryFileBuf1);
if (s == null)
{
// Try some native C64 file formats
s = (new MUS()).load(fileBuf1.ToArray(), true);
if (s != null)
{
// Try to find second file.
string fileName2;
int n = 0;
while (fileNameExtensions[n] != null)
{
createNewFileName(out fileName2, Encoding.ASCII.GetBytes(fileName), Encoding.ASCII.GetBytes(fileNameExtensions[n]));
// 1st data file was loaded into "fileBuf1",
// so we load the 2nd one into "fileBuf2".
// Do not load the first file again if names are equal.
if (fileName.Substring(0, fileName2.Length) != fileName2.Substring(0, fileName2.Length))
{
try
{
List <byte> fileBuf2 = new List <byte>();
loadFile(fileName2, ref fileBuf2);
// Check if tunes in wrong order and therefore swap them here
if (fileNameExtensions[n] == ".mus")
{
SidTuneBase s2 = (new MUS()).load(fileBuf2.ToArray(), fileBuf1.ToArray(), 0, true);
if (s2 != null)
{
s2.acceptSidTune(fileName2, fileName, ref fileBuf2, separatorIsSlash);
return(s2);
}
}
else
{
SidTuneBase s2 = (new MUS()).load(fileBuf1.ToArray(), true);
if (s2 != null)
{
s2.acceptSidTune(fileName, fileName2, ref fileBuf1, separatorIsSlash);
return(s2);
}
}
// The first tune loaded ok, so ignore errors on the
// second tune, may find an ok one later
}
catch (loadError)
{
}
}
n++;
}
}
}
if (s == null)
{
s = p00.load(fileName, aryFileBuf1);
}
if (s == null)
{
s = prg.load(fileName, aryFileBuf1);
}
if (s == null)
{
throw new loadError(ERR_UNRECOGNIZED_FORMAT);
}
s.acceptSidTune(fileName, null, ref fileBuf1, separatorIsSlash);
return(s);
}