/**
* Starts playing a new song.
*
* @param filename Path to a MIDI file.
*/
void MusicDriver_Cocoa::PlaySong(const char *filename)
{
DEBUG(driver, 2, "cocoa_m: trying to play '%s'", filename);
this->StopSong();
if (_sequence != NULL) {
DisposeMusicSequence(_sequence);
_sequence = NULL;
}
if (NewMusicSequence(&_sequence) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to create music sequence");
return;
}
const char *os_file = OTTD2FS(filename);
CFURLRef url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8*)os_file, strlen(os_file), false);
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
if (MacOSVersionIsAtLeast(10, 5, 0)) {
if (MusicSequenceFileLoad(_sequence, url, 0, 0) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to load MIDI file");
CFRelease(url);
return;
}
} else
#endif
{
#if (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5)
FSRef ref_file;
if (!CFURLGetFSRef(url, &ref_file)) {
DEBUG(driver, 0, "cocoa_m: Failed to make FSRef");
CFRelease(url);
return;
}
if (MusicSequenceLoadSMFWithFlags(_sequence, &ref_file, 0) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to load MIDI file old style");
CFRelease(url);
return;
}
#endif
}
CFRelease(url);
/* Construct audio graph */
AUGraph graph = NULL;
MusicSequenceGetAUGraph(_sequence, &graph);
AUGraphOpen(graph);
if (AUGraphInitialize(graph) != noErr) {
DEBUG(driver, 0, "cocoa_m: Failed to initialize AU graph");
return;
}
/* Figure out sequence length */
UInt32 num_tracks;
MusicSequenceGetTrackCount(_sequence, &num_tracks);
_seq_length = 0;
for (UInt32 i = 0; i < num_tracks; i++) {
MusicTrack track = NULL;
MusicTimeStamp track_length = 0;
UInt32 prop_size = sizeof(MusicTimeStamp);
MusicSequenceGetIndTrack(_sequence, i, &track);
MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength, &track_length, &prop_size);
if (track_length > _seq_length) _seq_length = track_length;
}
/* Add 8 beats for reverb/long note release */
_seq_length += 8;
DoSetVolume();
MusicPlayerSetSequence(_player, _sequence);
MusicPlayerPreroll(_player);
if (MusicPlayerStart(_player) != noErr) return;
_playing = true;
DEBUG(driver, 3, "cocoa_m: playing '%s'", filename);
}
/**
* Stops playing the current song, if the player is active.
*/
void MusicDriver_Cocoa::StopSong()
{
MusicPlayerStop(_player);
MusicPlayerSetSequence(_player, NULL);
_playing = false;
}
// Start playing the given track
void music_start_loop(enum music_track track, int loop)
{
OSStatus result;
// Load as necessary
music_load(track);
// Ensure we can we play this
if (!music_files[track].sequence_loaded)
return;
// Keep track of if we should loop or not
music_files[track].loop = loop;
// Is this already playing, or would it be playing if we weren't muted?
if (music_files[track].playing || music_files[track].muted)
return;
// TODO: fix the code that calls the music system so that we don't have two tracks running at once
// For now, stop any other tracks
music_stop();
// If we're muted, mark this track as muted, and bail out
if (mute_music) {
music_files[track].muted = 1;
return;
}
// Initialize the music player and attach the sequence
require_noerr(result = NewMusicPlayer(&music_files[track].player), fail);
require_noerr(result = MusicPlayerSetSequence(music_files[track].player, music_files[track].sequence), fail);
// Determine the track length if we don't know it already
if (music_files[track].track_length <= 1.0) {
UInt32 track_count, i;
require_noerr(result = MusicSequenceGetTrackCount(music_files[track].sequence, &track_count), fail);
for (i = 0; i < track_count; i++) {
MusicTrack midi_track;
MusicTimeStamp track_length;
UInt32 property_size = sizeof(MusicTimeStamp);
// Get the track within the MIDI file
require_noerr(result = MusicSequenceGetIndTrack(music_files[track].sequence, i, &midi_track), fail);
// Determine its length
require_noerr(result = MusicTrackGetProperty(midi_track, kSequenceTrackProperty_TrackLength, &track_length, &property_size), fail);
// Update the music track length if this MIDI track is longer
if (track_length > music_files[track].track_length)
music_files[track].track_length = track_length;
}
}
// Seek and pre-roll to the beginning
require_noerr(result = MusicPlayerSetTime(music_files[track].player, 0), fail);
require_noerr(result = MusicPlayerPreroll(music_files[track].player), fail);
// Start playing
require_noerr(result = MusicPlayerStart(music_files[track].player), fail);
// Mark as playing
music_files[track].playing = 1;
return;
fail:
WARNING2("unexpected error playing MIDI track; result=%ld", result);
music_files[track].unplayable = 1;
return;
}
NativeMidiSong *native_midi_loadsong_RW(SDL_RWops *src, int freesrc)
{
NativeMidiSong *retval = NULL;
void *buf = NULL;
Sint64 len = 0;
CFDataRef data = NULL;
if (SDL_RWseek(src, 0, RW_SEEK_END) < 0)
goto fail;
len = SDL_RWtell(src);
if (len < 0)
goto fail;
if (SDL_RWseek(src, 0, RW_SEEK_SET) < 0)
goto fail;
buf = malloc(len);
if (buf == NULL)
goto fail;
if (SDL_RWread(src, buf, len, 1) != 1)
goto fail;
retval = malloc(sizeof(NativeMidiSong));
if (retval == NULL)
goto fail;
memset(retval, '\0', sizeof (*retval));
if (NewMusicPlayer(&retval->player) != noErr)
goto fail;
if (NewMusicSequence(&retval->sequence) != noErr)
goto fail;
data = CFDataCreate(NULL, (const UInt8 *) buf, len);
if (data == NULL)
goto fail;
free(buf);
buf = NULL;
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1050
/* MusicSequenceLoadSMFData() (avail. in 10.2, no 64 bit) is
* equivalent to calling MusicSequenceLoadSMFDataWithFlags()
* with a flags value of 0 (avail. in 10.3, avail. 64 bit).
* So, we use MusicSequenceLoadSMFData() for powerpc versions
* but the *WithFlags() on intel which require 10.4 anyway. */
# if defined(__ppc__) || defined(__POWERPC__)
if (MusicSequenceLoadSMFData(song->sequence, data) != noErr)
goto fail;
# else
if (MusicSequenceLoadSMFDataWithFlags(retval->sequence, data, 0) != noErr)
goto fail;
# endif
#else /* MusicSequenceFileLoadData() requires 10.5 or later. */
if (MusicSequenceFileLoadData(retval->sequence, data, 0, 0) != noErr)
goto fail;
#endif
CFRelease(data);
data = NULL;
if (GetSequenceLength(retval->sequence, &retval->endTime) != noErr)
goto fail;
if (MusicPlayerSetSequence(retval->player, retval->sequence) != noErr)
goto fail;
if (freesrc)
SDL_RWclose(src);
return retval;
fail:
if (retval) {
if (retval->sequence)
DisposeMusicSequence(retval->sequence);
if (retval->player)
DisposeMusicPlayer(retval->player);
free(retval);
}
if (data)
CFRelease(data);
if (buf)
free(buf);
return NULL;
}
NativeMidiSong *native_midi_loadsong_RW(SDL_RWops *rw)
{
NativeMidiSong *retval = NULL;
void *buf = NULL;
int len = 0;
CFDataRef data = NULL;
if (SDL_RWseek(rw, 0, RW_SEEK_END) < 0)
goto fail;
len = SDL_RWtell(rw);
if (len < 0)
goto fail;
if (SDL_RWseek(rw, 0, RW_SEEK_SET) < 0)
goto fail;
buf = malloc(len);
if (buf == NULL)
goto fail;
if (SDL_RWread(rw, buf, len, 1) != 1)
goto fail;
retval = malloc(sizeof(NativeMidiSong));
if (retval == NULL)
goto fail;
memset(retval, '\0', sizeof (*retval));
if (NewMusicPlayer(&retval->player) != noErr)
goto fail;
if (NewMusicSequence(&retval->sequence) != noErr)
goto fail;
data = CFDataCreate(NULL, (const UInt8 *) buf, len);
if (data == NULL)
goto fail;
free(buf);
buf = NULL;
#if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 /* this is deprecated, but works back to 10.3 */
if (MusicSequenceLoadSMFDataWithFlags(retval->sequence, data, 0) != noErr)
goto fail;
#else /* not deprecated, but requires 10.5 or later */
if (MusicSequenceFileLoadData(retval->sequence, data, 0, 0) != noErr)
goto fail;
#endif
CFRelease(data);
data = NULL;
if (GetSequenceLength(retval->sequence, &retval->endTime) != noErr)
goto fail;
if (MusicPlayerSetSequence(retval->player, retval->sequence) != noErr)
goto fail;
return retval;
fail:
if (retval) {
if (retval->sequence)
DisposeMusicSequence(retval->sequence);
if (retval->player)
DisposeMusicPlayer(retval->player);
free(retval);
}
if (data)
CFRelease(data);
if (buf)
free(buf);
return NULL;
}
JNIEXPORT jint JNICALL Java_com_apple_audio_toolbox_MusicPlayer_MusicPlayerSetSequence
(JNIEnv *, jclass, jint inPlayer, jint inSequence)
{
return (jint)MusicPlayerSetSequence((MusicPlayer)inPlayer, (MusicSequence)inSequence);
}
int main (int argc, const char * argv[])
{
if (argc == 1) {
fprintf (stderr, "%s\n", usageStr);
exit(0);
}
char* filePath = 0;
bool shouldPlay = false;
bool shouldSetBank = false;
bool shouldUseMIDIEndpoint = false;
bool shouldPrint = true;
bool waitAtEnd = false;
bool diskStream = false;
OSType dataFormat = 0;
Float64 srate = 0;
const char* outputFilePath = 0;
MusicSequenceLoadFlags loadFlags = 0;
char* bankPath = 0;
Float32 startTime = 0;
UInt32 numFrames = 512;
std::set<int> trackSet;
for (int i = 1; i < argc; ++i)
{
if (!strcmp ("-p", argv[i]))
{
shouldPlay = true;
}
else if (!strcmp ("-w", argv[i]))
{
waitAtEnd = true;
}
else if (!strcmp ("-d", argv[i]))
{
diskStream = true;
}
else if (!strcmp ("-b", argv[i]))
{
shouldSetBank = true;
if (++i == argc) goto malformedInput;
bankPath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-n", argv[i]))
{
shouldPrint = false;
}
else if ((filePath == 0) && (argv[i][0] == '/' || argv[i][0] == '~'))
{
filePath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-s", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%f", &startTime);
}
else if (!strcmp ("-t", argv[i]))
{
int index;
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%d", &index);
trackSet.insert(--index);
}
else if (!strcmp("-e", argv[i]))
{
shouldUseMIDIEndpoint = true;
}
else if (!strcmp("-c", argv[i]))
{
loadFlags = kMusicSequenceLoadSMF_ChannelsToTracks;
}
else if (!strcmp ("-i", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%lu", (unsigned long*)(&numFrames));
}
else if (!strcmp ("-f", argv[i]))
{
if (i + 3 >= argc) goto malformedInput;
outputFilePath = argv[++i];
StrToOSType (argv[++i], dataFormat);
sscanf (argv[++i], "%lf", &srate);
}
else
{
malformedInput:
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
}
if (filePath == 0) {
fprintf (stderr, "You have to specify a MIDI file to print or play\n");
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
if (shouldUseMIDIEndpoint && outputFilePath) {
printf ("can't write a file when you try to play out to a MIDI Endpoint\n");
exit (1);
}
MusicSequence sequence;
OSStatus result;
FailIf ((result = LoadSMF (filePath, sequence, loadFlags)), fail, "LoadSMF");
if (shouldPrint)
CAShow (sequence);
if (shouldPlay)
{
AUGraph graph = 0;
AudioUnit theSynth = 0;
FailIf ((result = MusicSequenceGetAUGraph (sequence, &graph)), fail, "MusicSequenceGetAUGraph");
FailIf ((result = AUGraphOpen (graph)), fail, "AUGraphOpen");
FailIf ((result = GetSynthFromGraph (graph, theSynth)), fail, "GetSynthFromGraph");
FailIf ((result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_CPULoad,
kAudioUnitScope_Global, 0,
&maxCPULoad, sizeof(maxCPULoad))), fail, "AudioUnitSetProperty: kAudioUnitProperty_CPULoad");
if (shouldUseMIDIEndpoint)
{
MIDIClientRef theMidiClient;
MIDIClientCreate(CFSTR("Play Sequence"), NULL, NULL, &theMidiClient);
ItemCount destCount = MIDIGetNumberOfDestinations();
if (destCount == 0) {
fprintf (stderr, "No MIDI Endpoints to play to.\n");
exit(1);
}
FailIf ((result = MusicSequenceSetMIDIEndpoint (sequence, MIDIGetDestination(0))), fail, "MusicSequenceSetMIDIEndpoint");
}
else
{
if (shouldSetBank) {
CFURLRef soundBankURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8*)bankPath, strlen(bankPath), false);
printf ("Setting Sound Bank:%s\n", bankPath);
result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_SoundBankURL,
kAudioUnitScope_Global, 0,
&soundBankURL, sizeof(soundBankURL));
if (soundBankURL) CFRelease(soundBankURL);
FailIf (result, fail, "AudioUnitSetProperty: kMusicDeviceProperty_SoundBankURL");
}
if (diskStream) {
UInt32 value = diskStream;
FailIf ((result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_StreamFromDisk,
kAudioUnitScope_Global, 0,
&value, sizeof(value))), fail, "AudioUnitSetProperty: kMusicDeviceProperty_StreamFromDisk");
}
if (outputFilePath) {
// need to tell synth that is going to render a file.
UInt32 value = 1;
FailIf ((result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_OfflineRender,
kAudioUnitScope_Global, 0,
&value, sizeof(value))), fail, "AudioUnitSetProperty: kAudioUnitProperty_OfflineRender");
}
FailIf ((result = SetUpGraph (graph, numFrames, srate, (outputFilePath != NULL))), fail, "SetUpGraph");
if (shouldPrint) {
printf ("Sample Rate: %.1f \n", srate);
printf ("Disk Streaming is enabled: %c\n", (diskStream ? 'T' : 'F'));
}
FailIf ((result = AUGraphInitialize (graph)), fail, "AUGraphInitialize");
if (shouldPrint)
CAShow (graph);
}
MusicPlayer player;
FailIf ((result = NewMusicPlayer (&player)), fail, "NewMusicPlayer");
FailIf ((result = MusicPlayerSetSequence (player, sequence)), fail, "MusicPlayerSetSequence");
// figure out sequence length
UInt32 ntracks;
FailIf ((MusicSequenceGetTrackCount (sequence, &ntracks)), fail, "MusicSequenceGetTrackCount");
MusicTimeStamp sequenceLength = 0;
bool shouldPrintTracks = shouldPrint && !trackSet.empty();
if (shouldPrintTracks)
printf ("Only playing specified tracks:\n\t");
for (UInt32 i = 0; i < ntracks; ++i) {
MusicTrack track;
MusicTimeStamp trackLength;
UInt32 propsize = sizeof(MusicTimeStamp);
FailIf ((result = MusicSequenceGetIndTrack(sequence, i, &track)), fail, "MusicSequenceGetIndTrack");
FailIf ((result = MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength,
&trackLength, &propsize)), fail, "MusicTrackGetProperty: kSequenceTrackProperty_TrackLength");
if (trackLength > sequenceLength)
sequenceLength = trackLength;
if (!trackSet.empty() && (trackSet.find(i) == trackSet.end()))
{
Boolean mute = true;
FailIf ((result = MusicTrackSetProperty(track, kSequenceTrackProperty_MuteStatus, &mute, sizeof(mute))), fail, "MusicTrackSetProperty: kSequenceTrackProperty_MuteStatus");
}
else if (shouldPrintTracks) {
printf ("%d, ", int(i+1));
}
}
if (shouldPrintTracks)
printf ("\n");
// now I'm going to add 8 beats on the end for the reverb/long releases to tail off...
sequenceLength += 8;
FailIf ((result = MusicPlayerSetTime (player, startTime)), fail, "MusicPlayerSetTime");
FailIf ((result = MusicPlayerPreroll (player)), fail, "MusicPlayerPreroll");
if (shouldPrint) {
printf ("Ready to play: %s, %.2f beats long\n\t<Enter> to continue: ", filePath, sequenceLength);
getc(stdin);
}
startRunningTime = CAHostTimeBase::GetTheCurrentTime();
/* if (waitAtEnd && graph)
AUGraphStart(graph);
*/
FailIf ((result = MusicPlayerStart (player)), fail, "MusicPlayerStart");
if (outputFilePath)
WriteOutputFile (outputFilePath, dataFormat, srate, sequenceLength, shouldPrint, graph, numFrames, player);
else
PlayLoop (player, graph, sequenceLength, shouldPrint, waitAtEnd);
FailIf ((result = MusicPlayerStop (player)), fail, "MusicPlayerStop");
if (shouldPrint) printf ("finished playing\n");
/* if (waitAtEnd) {
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 10, false);
if (graph)
AUGraphStop(graph);
if (shouldPrint) printf ("disposing\n");
}
*/
// this shows you how you should dispose of everything
FailIf ((result = DisposeMusicPlayer (player)), fail, "DisposeMusicPlayer");
FailIf ((result = DisposeMusicSequence(sequence)), fail, "DisposeMusicSequence");
// don't own the graph so don't dispose it (the seq owns it as we never set it ourselves, we just got it....)
}
else {
FailIf ((result = DisposeMusicSequence(sequence)), fail, "DisposeMusicSequence");
}
while (waitAtEnd)
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.25, false);
return 0;
fail:
if (shouldPrint) printf ("Error = %ld\n", (long)result);
return result;
}
int main (int argc, const char * argv[])
{
if (argc == 1) {
fprintf (stderr, "%s\n", usageStr);
exit(0);
}
char* filePath = 0;
bool shouldPlay = false;
bool shouldSetBank = false;
bool shouldUseMIDIEndpoint = false;
bool shouldPrint = true;
bool waitAtEnd = false;
bool diskStream = false;
OSType dataFormat = 0;
Float64 srate = 0;
const char* outputFilePath = 0;
MusicSequenceLoadFlags loadFlags = 0;
char* bankPath = 0;
Float32 startTime = 0;
UInt32 numFrames = 512;
for (int i = 1; i < argc; ++i)
{
if (!strcmp ("-p", argv[i]))
{
shouldPlay = true;
}
else if (!strcmp ("-w", argv[i]))
{
waitAtEnd = true;
}
else if (!strcmp ("-d", argv[i]))
{
diskStream = true;
}
else if (!strcmp ("-b", argv[i]))
{
shouldSetBank = true;
if (++i == argc) goto malformedInput;
bankPath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-n", argv[i]))
{
shouldPrint = false;
}
else if ((filePath == 0) && (argv[i][0] == '/' || argv[i][0] == '~'))
{
filePath = const_cast<char*>(argv[i]);
}
else if (!strcmp ("-t", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%f", &startTime);
}
else if (!strcmp("-e", argv[i]))
{
shouldUseMIDIEndpoint = true;
}
else if (!strcmp("-c", argv[i]))
{
loadFlags = kMusicSequenceLoadSMF_ChannelsToTracks;
}
else if (!strcmp ("-i", argv[i]))
{
if (++i == argc) goto malformedInput;
sscanf (argv[i], "%ld", &numFrames);
}
else if (!strcmp ("-f", argv[i]))
{
if (i + 3 >= argc) goto malformedInput;
outputFilePath = argv[++i];
str2OSType (argv[++i], dataFormat);
sscanf (argv[++i], "%lf", &srate);
}
else
{
malformedInput:
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
}
if (filePath == 0) {
fprintf (stderr, "You have to specify a MIDI file to print or play\n");
fprintf (stderr, "%s\n", usageStr);
exit (1);
}
if (shouldUseMIDIEndpoint && outputFilePath) {
printf ("can't write a file when you try to play out to a MIDI Endpoint\n");
exit (1);
}
MusicSequence sequence;
OSStatus result;
require_noerr (result = LoadSMF (filePath, sequence, loadFlags), fail);
if (shouldPrint)
CAShow (sequence);
if (shouldPlay)
{
AUGraph graph = 0;
AudioUnit theSynth = 0;
require_noerr (result = MusicSequenceGetAUGraph (sequence, &graph), fail);
require_noerr (result = AUGraphOpen (graph), fail);
require_noerr (result = GetSynthFromGraph (graph, theSynth), fail);
require_noerr (result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_CPULoad,
kAudioUnitScope_Global, 0,
&maxCPULoad, sizeof(maxCPULoad)), fail);
if (shouldUseMIDIEndpoint)
{
MIDIClientRef theMidiClient;
MIDIClientCreate(CFSTR("Play Sequence"), NULL, NULL, &theMidiClient);
ItemCount destCount = MIDIGetNumberOfDestinations();
if (destCount == 0) {
fprintf (stderr, "No MIDI Endpoints to play to.\n");
exit(1);
}
require_noerr (result = MusicSequenceSetMIDIEndpoint (sequence, MIDIGetDestination(0)), fail);
}
else
{
if (shouldSetBank) {
FSRef soundBankRef;
require_noerr (result = FSPathMakeRef ((const UInt8*)bankPath, &soundBankRef, 0), fail);
printf ("Setting Sound Bank:%s\n", bankPath);
require_noerr (result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_SoundBankFSRef,
kAudioUnitScope_Global, 0,
&soundBankRef, sizeof(soundBankRef)), fail);
}
if (diskStream) {
UInt32 value = diskStream;
require_noerr (result = AudioUnitSetProperty (theSynth,
kMusicDeviceProperty_StreamFromDisk,
kAudioUnitScope_Global, 0,
&value, sizeof(value)), fail);
}
if (outputFilePath) {
// need to tell synth that is going to render a file.
UInt32 value = 1;
require_noerr (result = AudioUnitSetProperty (theSynth,
kAudioUnitProperty_OfflineRender,
kAudioUnitScope_Global, 0,
&value, sizeof(value)), fail);
}
require_noerr (result = SetUpGraph (graph, numFrames, srate, (outputFilePath != NULL)), fail);
if (shouldPrint) {
printf ("Sample Rate: %.1f \n", srate);
printf ("Disk Streaming is enabled: %c\n", (diskStream ? 'T' : 'F'));
}
require_noerr (result = AUGraphInitialize (graph), fail);
if (shouldPrint)
CAShow (graph);
}
MusicPlayer player;
require_noerr (result = NewMusicPlayer (&player), fail);
require_noerr (result = MusicPlayerSetSequence (player, sequence), fail);
// figure out sequence length
UInt32 ntracks;
require_noerr(MusicSequenceGetTrackCount (sequence, &ntracks), fail);
MusicTimeStamp sequenceLength = 0;
for (UInt32 i = 0; i < ntracks; ++i) {
MusicTrack track;
MusicTimeStamp trackLength;
UInt32 propsize = sizeof(MusicTimeStamp);
require_noerr (result = MusicSequenceGetIndTrack(sequence, i, &track), fail);
require_noerr (result = MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength,
&trackLength, &propsize), fail);
if (trackLength > sequenceLength)
sequenceLength = trackLength;
}
// now I'm going to add 8 beats on the end for the reverb/long releases to tail off...
sequenceLength += 8;
require_noerr (result = MusicPlayerSetTime (player, startTime), fail);
require_noerr (result = MusicPlayerPreroll (player), fail);
if (shouldPrint) {
printf ("Ready to play: %s, %.2f beats long\n\t<Enter> to continue: ", filePath, sequenceLength);
getc(stdin);
}
startRunningTime = AudioGetCurrentHostTime ();
require_noerr (result = MusicPlayerStart (player), fail);
if (outputFilePath)
WriteOutputFile (outputFilePath, dataFormat, srate, sequenceLength, shouldPrint, graph, numFrames, player);
else
PlayLoop (player, graph, sequenceLength, shouldPrint, waitAtEnd);
require_noerr (result = MusicPlayerStop (player), fail);
if (shouldPrint) printf ("finished playing\n");
// this shows you how you should dispose of everything
require_noerr (result = DisposeMusicPlayer (player), fail);
require_noerr (result = DisposeMusicSequence(sequence), fail);
// don't own the graph so don't dispose it (the seq owns it as we never set it ourselves, we just got it....)
}
else {
require_noerr (result = DisposeMusicSequence(sequence), fail);
}
while (waitAtEnd)
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.25, false);
return 0;
fail:
if (shouldPrint) printf ("Error = %ld\n", result);
return result;
}
void I_PlaySong (int handle, int _looping)
{
if(!music_initialized)
return;
if(--handle < 0 || handle >= MUSIC_TRACKS)
return;
if(!registered_tracks[handle].Track)
return;
#ifdef OSX
if(MusicSequenceSetAUGraph(sequence, graph) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicSequenceSetAUGraph failed\n");
return;
}
if(MusicPlayerSetSequence(player, sequence) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicPlayerSetSequence failed\n");
return;
}
if(MusicPlayerPreroll(player) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicPlayerPreroll failed\n");
return;
}
UInt32 outNumberOfTracks = 0;
if(MusicSequenceGetTrackCount(sequence, &outNumberOfTracks) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicSequenceGetTrackCount failed\n");
return;
}
for(UInt32 i = 0; i < outNumberOfTracks; i++)
{
MusicTrack track;
if(MusicSequenceGetIndTrack(sequence, i, &track) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicSequenceGetIndTrack failed\n");
return;
}
struct s_loopinfo
{
MusicTimeStamp time;
long loops;
}LoopInfo;
UInt32 inLength = sizeof(LoopInfo);
if(MusicTrackGetProperty(track, kSequenceTrackProperty_LoopInfo, &LoopInfo, &inLength) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicTrackGetProperty failed\n");
return;
}
inLength = sizeof(LoopInfo.time);
if(MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength, &LoopInfo.time, &inLength) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicTrackGetProperty failed\n");
return;
}
LoopInfo.loops = _looping ? 0 : 1;
if(MusicTrackSetProperty(track, kSequenceTrackProperty_LoopInfo, &LoopInfo, sizeof(LoopInfo)) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicTrackSetProperty failed\n");
return;
}
}
if(MusicPlayerStart(player) != noErr)
{
Printf (PRINT_HIGH, "I_PlaySong: MusicPlayerStart failed\n");
return;
}
#else
if(Mix_PlayMusic(registered_tracks[handle].Track, _looping ? -1 : 1) == -1)
{
Printf(PRINT_HIGH, "Mix_PlayMusic: %s\n", Mix_GetError());
current_track = 0;
return;
}
// [Russell] - Hack for setting the volume on windows vista, since it gets
// reset on every music change
I_SetMusicVolume(snd_musicvolume);
#endif
current_track = handle;
}