// **** Audio card support
// Aquire and enabled audio card
// return 0 if ok, -1 if failed
int HAE_AquireAudioCard(void *context, unsigned long sampleRate, unsigned long channels, unsigned long bits)
{
int flag;
long bufferSize;
short int bufferTime;
flag = 0;
g_activeDoubleBuffer = FALSE;
g_shutDownDoubleBuffer = TRUE;
g_audioFramesToGenerate = HAE_GetMaxSamplePerSlice(); // get number of frames per sample rate slice
g_synthFramesPerBlock = HAE_FRAMES_PER_BLOCK;
bufferTime = (HAE_GetSliceTimeInMicroseconds() / 1000) * g_synthFramesPerBlock;
if (bits == 8)
{
bufferSize = (sizeof(char) * g_audioFramesToGenerate);
}
else
{
bufferSize = (sizeof(short int) * g_audioFramesToGenerate);
}
bufferSize *= channels;
g_audioByteBufferSize = bufferSize;
// try and configure card to match our audio output
g_waveDevice = R0CARD_AcquireSoundCard(sampleRate, channels, bits,
bufferTime, &g_audioByteBufferSize,
PV_AudioHardwareCallback);
if (g_waveDevice)
{
g_shutDownDoubleBuffer = FALSE;
g_activeDoubleBuffer = TRUE; // must enable process, before thread begins
flag = 0; // ok
}
else
{
flag = -1; // failed;
HAE_ReleaseAudioCard(context);
}
return flag;
}
JNIEXPORT void JNICALL
Java_com_sun_media_sound_AbstractPlayer_nClose(JNIEnv* e, jobject thisObj, jlong id) {
GM_Song *pSong = (GM_Song *) (INT_PTR) id;
OPErr err;
int waitTime;
TRACE3("Java_com_sun_media_sound_AbstractPlayer_nClose: e: %lu, thisObj: %lu, pSong: %lu.\n",
e, thisObj, (UINT32) id);
if (pSong) {
GM_KillSongNotes(pSong);
pSong->disposeSongDataWhenDone = TRUE; // free our midi pointer
GM_PauseSong(pSong);
/* remove song from list of playing songs */
GM_RemoveFromSongsToPlay(pSong);
/* set to impossible scan mode to disable processing */
pSong->AnalyzeMode = (ScanMode) -1;
/* fix for 4795377: closing sequencer sometimes crashes the VM */
QGM_ClearSongFromQueue(pSong);
/* wait until there was at least one mixer slice
* processed so that the song notes are really
* not used anymore
*/
waitTime = HAE_GetSliceTimeInMicroseconds()/1000 + 5;
TRACE1("nClose: waiting %d millis to process GM_KillSongNotes...\n", waitTime);
SleepMillisInJava(e, waitTime);
do {
/* this may fail - wait until it was able to kill the song */
err = GM_FreeSong((void *)e, pSong);
if (err == STILL_PLAYING) {
ERROR0("nClose: STILL_PLAYING! wait 5 millis...\n");
SleepMillisInJava(e, 5);
} else if (err != NO_ERR) {
ERROR1("nClose: GM_FreeSong returned error code: %d\n", err);
}
} while (err == STILL_PLAYING);
} else {
ERROR0("Java_com_sun_media_sound_AbstractPlayer_nClose: pSong is NULL\n");
}
TRACE0("Java_com_sun_media_sound_AbstractPlayer_nClose completed.\n");
}
/* can be used as time stamp for interactive MIDI events */
INT64 XGetRealTimeSyncCount() {
INT64 ret = g_checkpointSyncCount
+ (XMicroseconds() - g_checkpointMicros)
+ (HAE_GetSliceTimeInMicroseconds() * HAE_GetAudioBufferCount());
return ret;
}
