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Corrected serial number generation for CD's with 1 or 2 tracks.

This commit is contained in:
Ed Snow 2000-08-19 20:19:46 +00:00 committed by Alexandre Julliard
parent eb0ab1b1ec
commit 9fcb4f551e
1 changed files with 26 additions and 1 deletions
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27
misc/cdrom.c
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@ -583,6 +583,18 @@ DWORD CDROM_Audio_GetSerial(WINE_CDAUDIO* wcda)
int i;
DWORD dwFrame, msf;
WORD wMinutes, wSeconds, wFrames;
WORD wMagic;
DWORD dwStart, dwEnd;
/*
* wMagic collects the wFrames from track 1
* dwStart, dwEnd collect the begining and end of the disc respectively, in
* frames.
* There is is collected for correcting the serial when there are less than
* 3 tracks.
*/
wMagic = 0;
dwStart = dwEnd = 0;
for (i = 0; i < wcda->nTracks; i++) {
dwFrame = wcda->lpdwTrackPos[i];
@ -594,7 +606,20 @@ DWORD CDROM_Audio_GetSerial(WINE_CDAUDIO* wcda)
serial += (CDROM_MSF_MINUTE(msf) << 16) +
(CDROM_MSF_SECOND(msf) << 8) +
(CDROM_MSF_FRAME(msf));
}
if (i==0)
{
wMagic = wFrames;
dwStart = dwFrame;
}
dwEnd = dwFrame + wcda->lpdwTrackLen[i];
}
if (wcda->nTracks < 3)
{
serial += wMagic + (dwEnd - dwStart);
}
return serial;
}