/* Stop playback */
static int SDL_SYS_CDStop(SDL_CD *cdrom)
{
if (fakeCD) {
SDL_SetError (kErrorFakeDevice);
return -1;
}
Lock ();
if (PauseFile () < 0) {
Unlock ();
return -2;
}
if (ReleaseFile () < 0) {
Unlock ();
return -3;
}
status = CD_STOPPED;
Unlock ();
return 0;
}
/* Setup another file for playback, or stop playback (called from another thread) */
static void
CompletionProc(SDL_CD * cdrom)
{
Lock();
if (nextTrackFrame > 0 && nextTrackFramesRemaining > 0) {
/* Load the next file to play */
int startFrame, stopFrame;
FSRef *file;
PauseFile();
ReleaseFile();
file = GetFileForOffset(cdrom, nextTrackFrame,
nextTrackFramesRemaining, &startFrame,
&stopFrame);
if (file == NULL) {
status = CD_STOPPED;
Unlock();
return;
}
LoadFile(file, startFrame, stopFrame);
SetCompletionProc(CompletionProc, cdrom);
PlayFile();
} else {
/* Release the current file */
PauseFile();
ReleaseFile();
status = CD_STOPPED;
}
Unlock();
}
/* Eject the CD-ROM (Unmount the volume) */
static int SDL_SYS_CDEject(SDL_CD *cdrom)
{
OSStatus err;
HParamBlockRec pb;
if (fakeCD) {
SDL_SetError (kErrorFakeDevice);
return -1;
}
Lock ();
if (PauseFile () < 0) {
Unlock ();
return -2;
}
if (ReleaseFile () < 0) {
Unlock ();
return -3;
}
status = CD_STOPPED;
// Eject the volume
pb.ioParam.ioNamePtr = NULL;
pb.ioParam.ioVRefNum = volumes[cdrom->id];
err = PBUnmountVol((ParamBlockRec *) &pb);
if (err != noErr) {
Unlock ();
SDL_SetError ("PBUnmountVol returned %d", err);
return -4;
}
status = CD_TRAYEMPTY;
/* Invalidate volume and track info */
volumes[cdrom->id] = 0;
free (tracks[cdrom->id]);
tracks[cdrom->id] = NULL;
Unlock ();
return 0;
}
/* Eject the CD-ROM (Unmount the volume) */
static int
SDL_SYS_CDEject(SDL_CD * cdrom)
{
OSStatus err;
pid_t dissenter;
if (fakeCD) {
SDL_SetError(kErrorFakeDevice);
return -1;
}
Lock();
if (PauseFile() < 0) {
Unlock();
return -2;
}
if (ReleaseFile() < 0) {
Unlock();
return -3;
}
status = CD_STOPPED;
/* Eject the volume */
err = FSEjectVolumeSync(volumes[cdrom->id], kNilOptions, &dissenter);
if (err != noErr) {
Unlock();
SDL_SetError("PBUnmountVol returned %d", err);
return -4;
}
status = CD_TRAYEMPTY;
/* Invalidate volume and track info */
volumes[cdrom->id] = 0;
free(tracks[cdrom->id]);
tracks[cdrom->id] = NULL;
Unlock();
return 0;
}
/* Start playback */
static int
SDL_SYS_CDPlay(SDL_CD * cdrom, int start, int length)
{
int startFrame, stopFrame;
FSRef *ref;
if (fakeCD) {
SDL_SetError(kErrorFakeDevice);
return -1;
}
Lock();
if (LoadTracks(cdrom) < 0)
return -2;
if (PauseFile() < 0)
return -3;
if (ReleaseFile() < 0)
return -4;
ref = GetFileForOffset(cdrom, start, length, &startFrame, &stopFrame);
if (ref == NULL) {
SDL_SetError("SDL_SYS_CDPlay: No file for start=%d, length=%d",
start, length);
return -5;
}
if (LoadFile(ref, startFrame, stopFrame) < 0)
return -6;
SetCompletionProc(CompletionProc, cdrom);
if (PlayFile() < 0)
return -7;
status = CD_PLAYING;
Unlock();
return 0;
}
/* Pause playback */
static int SDL_SYS_CDPause(SDL_CD *cdrom)
{
if (fakeCD) {
SDL_SetError (kErrorFakeDevice);
return -1;
}
Lock ();
if (PauseFile () < 0) {
Unlock ();
return -2;
}
status = CD_PAUSED;
Unlock ();
return 0;
}
