static void admm_normaleq(void* _data, float* _dst, const float* _src)
{
struct admm_normaleq_data* data = _data;
long dims[1] = { data->N };
//float* tmp = md_alloc_sameplace(1, dims, FL_SIZE, _src );
md_clear(1, dims, _dst, sizeof(float));
for (unsigned int i = 0; i < data->num_funs; i++) {
data->ops[i].normal(data->ops[i].data, data->tmp, _src);
if ((NULL != data->Aop) && (NULL != data->Aop_data))
md_axpy(1, dims, _dst, data->rho, data->tmp);
else
md_add(1, dims, _dst, _dst, data->tmp);
}
if ((NULL != data->Aop) && (NULL != data->Aop_data)) {
data->Aop(data->Aop_data, data->tmp, _src);
md_add(1, dims, _dst, _dst, data->tmp);
}
//md_free( tmp );
}
/*
* Read in a midi file from the specified open file pointer, fp
* and return an mtree structure tree representing the file.
*
* Arguments:
* fp - Input file pointer
*/
struct rootElement *
midi_read(FILE *fp)
{
struct midistate mState;
struct midistate *msp;
struct rootElement *root;
struct element *el;
int i;
msp = &mState;
msp->fp = fp;
msp->tempo_map = md_tempomap_new();
msp->notes = g_ptr_array_new();
msp->port = 0;
root = read_head(msp);
md_add(MD_CONTAINER(root), NULL); /* Leave room for the tempo map */
for (i = 0; i < root->tracks; i++) {
el = MD_ELEMENT(read_track(msp));
/* If format 1 then the first track is really the tempo map */
if (root->format == 1
&& i == 0
&& MD_CONTAINER(el)->elements->len == 0) {
/* It will be added after the loop */
md_free(el);
continue;
}
md_add(MD_CONTAINER(root), el);
}
g_ptr_array_index(MD_CONTAINER(root)->elements, 0) = msp->tempo_map;
msp->tempo_map = NULL;
g_ptr_array_free(msp->notes, 1);
return root;
}
/**
* Proximal function for f(z) = Ind{ || y - z ||_2 < eps }
*
* @param prox_data should be of type prox_l2ball_data
* @param mu proximal penalty
* @param z output
* @param x_plus_u input
*/
static void prox_l2ball_fun(const operator_data_t* prox_data, float mu, float* z, const float* x_plus_u)
{
UNUSED(mu);
struct prox_l2ball_data* pdata = CAST_DOWN(prox_l2ball_data, prox_data);
if (NULL != pdata->center)
md_sub(1, MD_DIMS(pdata->size), z, x_plus_u, pdata->center);
else
md_copy(1, MD_DIMS(pdata->size), z, x_plus_u, FL_SIZE);
float q1 = md_norm(1, MD_DIMS(pdata->size), z);
if (q1 > pdata->eps)
md_smul(1, MD_DIMS(pdata->size), z, z, pdata->eps / q1);
if (NULL != pdata->center)
md_add(1, MD_DIMS(pdata->size), z, z, pdata->center);
}
/*
* Do extra handling of meta events. We want to save time
* signature and key for use elsewhere, for example. This
* routine create the correct type of class and returns it.
*
* Arguments:
* msp - The midi file state
* type - The meta event type
* data - The data for the event
*/
static struct metaElement *
handle_meta(struct midistate *msp, int type, unsigned char *data)
{
struct metaElement *el = NULL;
struct mapElement *map = NULL;
int micro_tempo;
switch (type) {
case MIDI_META_SEQUENCE:
break;
case MIDI_META_TEXT:
case MIDI_META_COPYRIGHT:
case MIDI_META_TRACKNAME:
case MIDI_META_INSTRUMENT:
case MIDI_META_LYRIC:
case MIDI_META_MARKER:
case MIDI_META_CUE:
/* Text based events */
el = MD_META(md_text_new(type, (char*)data));
break;
case MIDI_META_CHANNEL:
break;
case MIDI_META_PORT:
msp->port = data[0];
g_free(data);
break;
case MIDI_META_EOT:
break;
case MIDI_META_TEMPO:
micro_tempo = ((data[0]<<16) & 0xff0000)
+ ((data[1]<<8) & 0xff00) + (data[2] & 0xff);
map = MD_MAP(md_tempo_new(micro_tempo));
g_free(data);
break;
case MIDI_META_SMPTE_OFFSET:
el = MD_META(md_smpteoffset_new(data[0], data[1], data[2], data[3],
data[4]));
break;
case MIDI_META_TIME:
map = MD_MAP(md_timesig_new(data[0], 1<<data[1],
data[2], data[3]));
g_free(data);
break;
case MIDI_META_KEY:
map = MD_MAP(md_keysig_new(data[0], (data[1]==1)? 1: 0));
g_free(data);
break;
case MIDI_META_PROP:
/* Proprietry sequencer specific event */
/* Just throw it out */
break;
default:
g_warning("Meta event %d not implemented\n", type);
break;
}
/* If this affected the tempo map then add it */
if (map) {
MD_ELEMENT(map)->element_time = msp->current_time;
md_add(MD_CONTAINER(msp->tempo_map), MD_ELEMENT(map));
}
return el;
}
/*
* Complete the reading of the status byte. The parsed midi
* command will be added to the specified track .
*
* Arguments:
* msp - Current midi file status
* track - Current track
* status - Status byte, ie. current command
*/
static void
handle_status(struct midistate *msp, struct trackElement *track, int status)
{
int ch;
int type;
int device;
int length;
short note, vel, control;
int val;
unsigned char *data;
struct element *el;
ch = status & 0x0f;
type = status & 0xf0;
/*
* Do not set the device if the type is 0xf0 as these commands are
* not channel specific
*/
device = 0;
if (type != 0xf0)
device = (msp->port<<4) + ch;
msp->device = device;
el = NULL;
switch (type) {
case MIDI_NOTE_OFF:
note = read_int(msp, 1);
vel = read_int(msp, 1);
finish_note(msp, note, vel);
break;
case MIDI_NOTE_ON:
note = read_int(msp, 1);
vel = read_int(msp, 1);
if (vel == 0) {
/* This is really a note off */
finish_note(msp, note, vel);
} else {
/* Save the start, so it can be matched with the note off */
el = save_note(msp, note, vel);
}
break;
case MIDI_KEY_AFTERTOUCH:
note = read_int(msp, 1);
vel = read_int(msp, 1);
/* new aftertouchElement */
el = MD_ELEMENT(md_keytouch_new(note, vel));
break;
case MIDI_CONTROLER:
control = read_int(msp, 1);
val = read_int(msp, 1);
el = MD_ELEMENT(md_control_new(control, val));
break;
case MIDI_PATCH:
val = read_int(msp, 1);
el = MD_ELEMENT(md_program_new(val));
break;
case MIDI_CHANNEL_AFTERTOUCH:
val = read_int(msp, 1);
el = MD_ELEMENT(md_pressure_new(val));
break;
case MIDI_PITCH_WHEEL:
{
val = read_int(msp, 1);
int val2 = read_int(msp, 1);
val |= val2 << 7;
val -= 0x2000; /* Center it around zero */
el = MD_ELEMENT(md_pitch_new(val));
break;
}
/* Now for all the non-channel specific ones */
case 0xf0:
/* Deal with the end of track event first */
if (ch == 0x0f) {
type = read_int(msp, 1);
if (type == 0x2f) {
/* End of track - skip to end of real track */
track->final_time = msp->current_time;
skip_chunk(msp);
return;
}
}
/* Get the length of the following data */
length = read_var(msp);
data = read_data(msp, length);
if (ch == 0x0f) {
el = (struct element *)handle_meta(msp, type, data);
} else {
el = (struct element *)md_sysex_new(status, data, length);
}
break;
default:
except(formatError, "Bad status type 0x%x", type);
/*NOTREACHED*/
}
if (el != NULL) {
el->element_time = msp->current_time;
el->device_channel = device;
md_add(MD_CONTAINER(track), el);
}
}
