OPErr GM_UnloadSongInstruments(GM_Song *pSong)
{
short int count;
OPErr err;
err = NO_ERR;
if (pSong)
{
for (count = 0; count < (MAX_INSTRUMENTS*MAX_BANKS); count++)
{
if (pSong->instrumentData[count])
{
err = GM_UnloadInstrument(pSong, count);
if (err == NO_ERR)
{
pSong->instrumentData[count] = NULL; // redundant, but clear
}
else
{
break;
}
}
}
}
return err;
}
JNIEXPORT jboolean JNICALL
Java_com_sun_media_sound_MixerSynth_nUnloadInstrument(JNIEnv* e, jobject thisObj, jlong id, jint instrumentId)
{
OPErr opErr;
TRACE0("Java_com_sun_media_sound_MixerSynth_nUnloadInstrument\n");
opErr = GM_UnloadInstrument((GM_Song *) (INT_PTR) id, (XLongResourceID)instrumentId);
TRACE0("Java_com_sun_media_sound_MixerSynth_nUnloadInstrument completed\n");
return ( (opErr == NO_ERR) ? TRUE : FALSE );
}
OPErr GM_UnloadSongInstrument(GM_Song *pSong, XLongResourceID instrument)
{
register OPErr theErr;
theErr = BAD_INSTRUMENT;
if ( pSong && (instrument >= 0) && (instrument < (MAX_INSTRUMENTS*MAX_BANKS)) )
{
theErr = GM_UnloadInstrument(pSong, instrument);
if (theErr == NO_ERR)
{
pSong->remapArray[instrument] = instrument;
pSong->instrumentRemap[instrument] = (XLongResourceID)-1;
}
}
return theErr;
}
// Load an instrument based from a memory definition, and assign it to the instrument ID passed.
// This will unload the instrument if its already loaded.
OPErr GM_LoadInstrumentFromExternalData(GM_Song *pSong, XLongResourceID instrument,
void *theX, UINT32 theXPatchSize)
{
register GM_Instrument *theI;
register OPErr theErr;
theErr = MEMORY_ERR;
if ( (instrument >= 0) && (instrument < (MAX_INSTRUMENTS*MAX_BANKS)) )
{
if (pSong)
{
theErr = NO_ERR;
theI = pSong->instrumentData[instrument];
if (theI)
{
GM_UnloadInstrument(pSong, instrument);
}
theI = PV_GetInstrument(instrument, theX, theXPatchSize);
if (theI)
{
theI->usageReferenceCount++; // increment reference count
pSong->instrumentData[instrument] = theI;
pSong->remapArray[instrument] = instrument;
pSong->instrumentRemap[instrument] = (XLongResourceID)-1;
}
else
{
theErr = BAD_INSTRUMENT;
}
}
else
{
theErr = NOT_SETUP;
}
}
else
{
theErr = PARAM_ERR;
}
return theErr;
}
JNIEXPORT jboolean JNICALL
Java_com_sun_media_sound_AbstractPlayer_nUnloadInstrument(JNIEnv* e, jobject thisObj, jlong id, jint instrumentId)
{
GM_Song *pSong = (GM_Song *) (INT_PTR) id;
OPErr opErr = NOT_SETUP;
TRACE0("Java_com_sun_media_sound_AbstractPlayer_nUnloadInstrument\n");
if (pSong) {
opErr = GM_UnloadInstrument(pSong, (XLongResourceID)instrumentId);
if (opErr != NO_ERR) {
ERROR1("Java_com_sun_media_sound_AbstractPlayer_nUnloadInstrument: GM_UnloadInstrument returned an error: %d\n", opErr);
}
} else {
ERROR0("Java_com_sun_media_sound_AbstractPlayer_nUnloadInstrument: pSong is NULL\n");
}
TRACE0("Java_com_sun_media_sound_AbstractPlayer_nUnloadInstrument completed\n");
return ( (opErr == NO_ERR) ? TRUE : FALSE );
}
