s32 CALLBACK CDVDreadSubQ(u32 lsn, cdvdSubQ* subq) {
char temptime[3];
int i;
int pos;
u32 tracklsn;
#ifdef VERBOSE_FUNCTION_INTERFACE
PrintLog("CDVDiso interface: CDVDreadSubQ()");
#endif /* VERBOSE_FUNCTION_INTERFACE */
if(isofile == NULL) return(-1);
if(deviceopencount > 0) {
deviceopencount--;
if(deviceopencount > 0) return(-1);
} // ENDIF- Still simulating device tray open?
if((isofile->cdvdtype == CDVD_TYPE_PS2DVD) ||
(isofile->cdvdtype == CDVD_TYPE_DVDV)) {
return(-1); // DVDs don't have SubQ data
} // ENDIF- Trying to get a SubQ from a DVD?
// fake it
i = BCDTOHEX(isofile->toc[7]);
pos = i * 10;
pos += 30;
temptime[0] = BCDTOHEX(isofile->toc[pos + 7]);
temptime[1] = BCDTOHEX(isofile->toc[pos + 8]);
temptime[2] = BCDTOHEX(isofile->toc[pos + 9]);
tracklsn = MSFtoLBA(temptime);
while((i < BCDTOHEX(isofile->toc[17])) && (tracklsn < lsn)) {
i++;
pos = i * 10;
pos += 30;
temptime[0] = BCDTOHEX(isofile->toc[pos + 7]);
temptime[1] = BCDTOHEX(isofile->toc[pos + 8]);
temptime[2] = BCDTOHEX(isofile->toc[pos + 9]);
tracklsn = MSFtoLBA(temptime);
} // ENDIF- Loop through tracks searching for lsn track
i--;
subq->ctrl = 4;
subq->mode = 1;
subq->trackNum = HEXTOBCD(i);
subq->trackIndex = HEXTOBCD(i);
LBAtoMSF(lsn - tracklsn, temptime);
subq->trackM = HEXTOBCD(temptime[0]);
subq->trackS = HEXTOBCD(temptime[1]);
subq->trackF = HEXTOBCD(temptime[2]);
subq->pad = 0;
// lba_to_msf(lsn + (2*75), &min, &sec, &frm);
LBAtoMSF(lsn, temptime);
subq->discM = HEXTOBCD(temptime[0]);
subq->discS = HEXTOBCD(temptime[1]);
subq->discF = HEXTOBCD(temptime[2]);
return(0);
} // END CDVDreadSubQ()
s32 CDgetTD(u8 newtrack, cdvdTD *cdvdtd)
{
u8 j;
u16 k;
char temptime[3];
#ifdef VERBOSE_FUNCTION
PrintLog("CDVD driver: CDgetTD()");
#endif /* VERBOSE_FUNCTION */
j = newtrack;
if (j == CDROM_LEADOUT) j = 0;
if (j == 0)
{
k = 27;
}
else
{
k = j * 10 + 37;
} // ENDIF- Where to start hunting for this number?
if (cdvdtd != NULL)
{
cdvdtd->type = tocbuffer[j*10 + 30];
temptime[0] = BCDTOHEX(tocbuffer[k]);
temptime[1] = BCDTOHEX(tocbuffer[k + 1]);
temptime[2] = BCDTOHEX(tocbuffer[k + 2]);
cdvdtd->lsn = MSFtoLBA(temptime);
} // ENDIF- Does the caller REALLY want this data?
return(0); // Call accomplished
} // END CDVDgetTD()
s32 CALLBACK CDVDgetTD(u8 track, cdvdTD *Buffer) {
u8 actualtrack;
int pos;
char temptime[3];
#ifdef VERBOSE_FUNCTION_INTERFACE
PrintLog("CDVDiso interface: CDVDgetTD()");
#endif /* VERBOSE_FUNCTION_INTERFACE */
if(isofile == NULL) return(-1);
if(deviceopencount > 0) {
deviceopencount--;
if(deviceopencount > 0) return(-1);
} // ENDIF- Still simulating device tray open?
actualtrack = track;
if(actualtrack == 0xaa) actualtrack = 0;
if((isofile->cdvdtype == CDVD_TYPE_PS2DVD) ||
(isofile->cdvdtype == CDVD_TYPE_DVDV)) {
if (actualtrack <= 1) {
Buffer->type = 0;
Buffer->lsn = isofile->filesectorsize;
} else {
Buffer->type = CDVD_MODE1_TRACK;
Buffer->lsn = 0;
} // ENDIF- Whole disc? (or single track?)
} else {
if (actualtrack == 0) {
Buffer->type = 0;
temptime[0] = BCDTOHEX(isofile->toc[27]);
temptime[1] = BCDTOHEX(isofile->toc[28]);
temptime[2] = BCDTOHEX(isofile->toc[29]);
Buffer->lsn = MSFtoLBA(temptime);
} else {
pos = actualtrack * 10;
pos += 30;
Buffer->type = isofile->toc[pos];
temptime[0] = BCDTOHEX(isofile->toc[pos + 7]);
temptime[1] = BCDTOHEX(isofile->toc[pos + 8]);
temptime[2] = BCDTOHEX(isofile->toc[pos + 9]);
Buffer->lsn = MSFtoLBA(temptime);
} // ENDIF- Whole disc? (or single track?)
} // ENDIF- Retrieve track info from a DVD? (or a CD?)
return(0);
} // END CDVDgetTD()
extern int IsoSaveTOC(struct IsoFile *isofile)
{
char tocext[] = ".toc\0";
char tocheader[] = "TOC1\0";
ACTUALHANDLE tochandle;
char tocname[256];
int i;
int j;
int retval;
unsigned char cdvdtype;
struct tocTN toctn;
struct tocTD toctd;
char temptime[3];
if (isofile == NULL) return(-1);
i = 0;
while ((i < 256) && (isofile->name[i] != 0))
{
tocname[i] = isofile->name[i];
i++;
} // ENDWHILE- Copying the data name to the toc name
j = 0;
while ((i < 256) && (tocext[j] != 0))
{
tocname[i] = tocext[j];
i++;
j++;
} // ENDWHILE- Append ".toc" to end of name
tocname[i] = 0; // And 0-terminate
ActualFileDelete(tocname);
tochandle = ActualFileOpenForWrite(tocname);
if (tochandle == ACTUALHANDLENULL) return(-1);
retval = ActualFileWrite(tochandle, 4, tocheader);
if (retval < 4)
{
ActualFileClose(tochandle);
tochandle = ACTUALHANDLENULL;
ActualFileDelete(tocname);
return(-1);
} // ENDIF- Trouble writing to the 'toc' file?
cdvdtype = isofile->cdvdtype;
ActualFileWrite(tochandle, 1, (char *) &cdvdtype);
if ((cdvdtype != CDVD_TYPE_PS2DVD) && (cdvdtype != CDVD_TYPE_DVDV))
{
toctn.strack = BCDTOHEX(isofile->toc[7]);
toctn.etrack = BCDTOHEX(isofile->toc[17]);
ActualFileWrite(tochandle, sizeof(struct tocTN), (char *) &toctn);
// Leadout Data
toctd.type = 0;
temptime[0] = BCDTOHEX(isofile->toc[27]);
temptime[1] = BCDTOHEX(isofile->toc[28]);
temptime[2] = BCDTOHEX(isofile->toc[29]);
toctd.lsn = MSFtoLBA(temptime);
ActualFileWrite(tochandle, sizeof(struct tocTD), (char *) &toctd);
for (i = toctn.strack; i <= toctn.etrack; i++)
{
j = i * 10 + 30;
toctd.type = isofile->toc[j];
temptime[0] = BCDTOHEX(isofile->toc[j + 7]);
temptime[1] = BCDTOHEX(isofile->toc[j + 8]);
temptime[2] = BCDTOHEX(isofile->toc[j + 9]);
toctd.lsn = MSFtoLBA(temptime);
ActualFileWrite(tochandle, sizeof(struct tocTD), (char *) &toctd);
} // NEXT i- write out each track
} // ENDIF- Not a DVD? (Then output CD track data)
ActualFileClose(tochandle);
tochandle = ACTUALHANDLENULL;
return(0);
} // END IsoSaveTOC()
