/*
* Class: org_tritonus_midi_device_fluidsynth_FluidSynthesizer
* Method: nReceive
* Signature: (IIII)V
*/
JNIEXPORT void JNICALL Java_org_tritonus_midi_device_fluidsynth_FluidSynthesizer_nReceive
(JNIEnv *env, jobject obj, jint command, jint channel, jint data1, jint data2)
{
fluid_midi_event_t* event;
fluid_synth_t* synth = get_synth(env, obj);
#ifdef VARIADIC_MACROS
out("nReceive: synth: %p, values: %x %d %d %d\n", synth, (int) command, (int) channel, (int) data1, (int) data2);
#else
if (debug_flag)
{
fprintf(debug_file, "synth: %p, values: %x %d %d %d\n", synth, (int) command, (int) channel, (int) data1, (int) data2);
fflush(debug_file);
}
#endif
if (synth)
{
event = new_fluid_midi_event();
if (!event)
{
printf("failed to instantiate fluid_midi_event_t\n");
return;
}
//printf("2"); fflush(stdout);
fluid_midi_event_set_type(event, command);
fluid_midi_event_set_channel(event, channel);
fluid_midi_event_set_key(event, data1);
fluid_midi_event_set_velocity(event, data2);
//printf("3"); fflush(stdout);
/*printf("values2: %d %d %d %d\n",
fluid_midi_event_get_type(event),
fluid_midi_event_get_channel(event),
fluid_midi_event_get_key(event),
fluid_midi_event_get_velocity(event));
fflush(stdout);
*/
fluid_synth_handle_midi_event(synth, event);
//printf("4"); fflush(stdout);
delete_fluid_midi_event(event);
//printf("5\n"); fflush(stdout);
}
}
/*
* fluid_midi_file_read_event
*/
int
fluid_midi_file_read_event(fluid_midi_file *mf, fluid_track_t *track, int num)
{
int status;
int type;
int tempo;
unsigned char *metadata = NULL;
unsigned char *dyn_buf = NULL;
unsigned char static_buf[256];
int nominator, denominator, clocks, notes;
fluid_midi_event_t *evt;
int channel = 0;
int param1 = 0;
int param2 = 0;
int size;
/* read the delta-time of the event */
if (fluid_midi_file_read_varlen(mf) != FLUID_OK) {
return FLUID_FAILED;
}
mf->dtime += mf->varlen;
/* read the status byte */
status = fluid_midi_file_getc(mf);
if (status < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
/* not a valid status byte: use the running status instead */
if ((status & 0x80) == 0) {
if ((mf->running_status & 0x80) == 0) {
FLUID_LOG(FLUID_ERR, "Undefined status and invalid running status");
return FLUID_FAILED;
}
fluid_midi_file_push(mf, status);
status = mf->running_status;
}
/* check what message we have */
mf->running_status = status;
if ((status == MIDI_SYSEX)) { /* system exclusif */
/* read the length of the message */
if (fluid_midi_file_read_varlen(mf) != FLUID_OK) {
return FLUID_FAILED;
}
if (mf->varlen) {
FLUID_LOG(FLUID_DBG, "%s: %d: alloc metadata, len = %d", __FILE__,
__LINE__, mf->varlen);
metadata = FLUID_MALLOC(mf->varlen + 1);
if (metadata == NULL) {
FLUID_LOG(FLUID_PANIC, "Out of memory");
return FLUID_FAILED;
}
/* read the data of the message */
if (fluid_midi_file_read(mf, metadata, mf->varlen) != FLUID_OK) {
FLUID_FREE (metadata);
return FLUID_FAILED;
}
evt = new_fluid_midi_event();
if (evt == NULL) {
FLUID_LOG(FLUID_ERR, "Out of memory");
FLUID_FREE (metadata);
return FLUID_FAILED;
}
evt->dtime = mf->dtime;
size = mf->varlen;
if (metadata[mf->varlen - 1] == MIDI_EOX)
size--;
/* Add SYSEX event and indicate that its dynamically allocated and should be freed with event */
fluid_midi_event_set_sysex(evt, metadata, size, TRUE);
fluid_track_add_event(track, evt);
mf->dtime = 0;
}
return FLUID_OK;
} else if (status == MIDI_META_EVENT) { /* meta events */
int result = FLUID_OK;
/* get the type of the meta message */
type = fluid_midi_file_getc(mf);
if (type < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
/* get the length of the data part */
if (fluid_midi_file_read_varlen(mf) != FLUID_OK) {
return FLUID_FAILED;
}
if (mf->varlen < 255) {
metadata = &static_buf[0];
} else {
FLUID_LOG(FLUID_DBG, "%s: %d: alloc metadata, len = %d", __FILE__,
__LINE__, mf->varlen);
dyn_buf = FLUID_MALLOC(mf->varlen + 1);
if (dyn_buf == NULL) {
FLUID_LOG(FLUID_PANIC, "Out of memory");
return FLUID_FAILED;
}
metadata = dyn_buf;
}
/* read the data */
if (mf->varlen) {
if (fluid_midi_file_read(mf, metadata, mf->varlen) != FLUID_OK) {
if (dyn_buf) {
FLUID_FREE(dyn_buf);
}
return FLUID_FAILED;
}
}
/* handle meta data */
switch (type) {
case MIDI_COPYRIGHT:
metadata[mf->varlen] = 0;
break;
case MIDI_TRACK_NAME:
metadata[mf->varlen] = 0;
fluid_track_set_name(track, (char *) metadata);
break;
case MIDI_INST_NAME:
metadata[mf->varlen] = 0;
break;
case MIDI_LYRIC:
break;
case MIDI_MARKER:
break;
case MIDI_CUE_POINT:
break; /* don't care much for text events */
case MIDI_EOT:
if (mf->varlen != 0) {
FLUID_LOG(FLUID_ERR, "Invalid length for EndOfTrack event");
result = FLUID_FAILED;
break;
}
mf->eot = 1;
evt = new_fluid_midi_event();
if (evt == NULL) {
FLUID_LOG(FLUID_ERR, "Out of memory");
result = FLUID_FAILED;
break;
}
evt->dtime = mf->dtime;
evt->type = MIDI_EOT;
fluid_track_add_event(track, evt);
mf->dtime = 0;
break;
case MIDI_SET_TEMPO:
if (mf->varlen != 3) {
FLUID_LOG(FLUID_ERR,
"Invalid length for SetTempo meta event");
result = FLUID_FAILED;
break;
}
tempo = (metadata[0] << 16) + (metadata[1] << 8) + metadata[2];
evt = new_fluid_midi_event();
if (evt == NULL) {
FLUID_LOG(FLUID_ERR, "Out of memory");
result = FLUID_FAILED;
break;
}
evt->dtime = mf->dtime;
evt->type = MIDI_SET_TEMPO;
evt->channel = 0;
evt->param1 = tempo;
evt->param2 = 0;
fluid_track_add_event(track, evt);
mf->dtime = 0;
break;
case MIDI_SMPTE_OFFSET:
if (mf->varlen != 5) {
FLUID_LOG(FLUID_ERR,
"Invalid length for SMPTE Offset meta event");
result = FLUID_FAILED;
break;
}
break; /* we don't use smtp */
case MIDI_TIME_SIGNATURE:
if (mf->varlen != 4) {
FLUID_LOG(FLUID_ERR,
"Invalid length for TimeSignature meta event");
result = FLUID_FAILED;
break;
}
nominator = metadata[0];
denominator = pow(2.0, (double) metadata[1]);
clocks = metadata[2];
notes = metadata[3];
FLUID_LOG(FLUID_DBG,
"signature=%d/%d, metronome=%d, 32nd-notes=%d",
nominator, denominator, clocks, notes);
break;
case MIDI_KEY_SIGNATURE:
if (mf->varlen != 2) {
FLUID_LOG(FLUID_ERR,
"Invalid length for KeySignature meta event");
result = FLUID_FAILED;
break;
}
/* We don't care about key signatures anyway */
/* sf = metadata[0];
mi = metadata[1]; */
break;
case MIDI_SEQUENCER_EVENT:
break;
default:
break;
}
if (dyn_buf) {
FLUID_LOG(FLUID_DBG, "%s: %d: free metadata", __FILE__, __LINE__);
FLUID_FREE(dyn_buf);
}
return result;
} else { /* channel messages */
type = status & 0xf0;
channel = status & 0x0f;
/* all channel message have at least 1 byte of associated data */
if ((param1 = fluid_midi_file_getc(mf)) < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
switch (type) {
case NOTE_ON:
if ((param2 = fluid_midi_file_getc(mf)) < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
break;
case NOTE_OFF:
if ((param2 = fluid_midi_file_getc(mf)) < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
break;
case KEY_PRESSURE:
if ((param2 = fluid_midi_file_getc(mf)) < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
break;
case CONTROL_CHANGE:
if ((param2 = fluid_midi_file_getc(mf)) < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
break;
case PROGRAM_CHANGE:
break;
case CHANNEL_PRESSURE:
break;
case PITCH_BEND:
if ((param2 = fluid_midi_file_getc(mf)) < 0) {
FLUID_LOG(FLUID_ERR, "Unexpected end of file");
return FLUID_FAILED;
}
param1 = ((param2 & 0x7f) << 7) | (param1 & 0x7f);
param2 = 0;
break;
default:
/* Can't possibly happen !? */
FLUID_LOG(FLUID_ERR, "Unrecognized MIDI event");
return FLUID_FAILED;
}
evt = new_fluid_midi_event();
if (evt == NULL) {
FLUID_LOG(FLUID_ERR, "Out of memory");
return FLUID_FAILED;
}
evt->dtime = mf->dtime;
evt->type = type;
evt->channel = channel;
evt->param1 = param1;
evt->param2 = param2;
evt->track = num;
fluid_track_add_event(track, evt);
mf->dtime = 0;
}
return FLUID_OK;
}
