static void
run(LV2_Handle instance, uint32_t sample_count)
{
Metro* self = (Metro*)instance;
const MetroURIs* uris = &self->uris;
// Work forwards in time frame by frame, handling events as we go
const LV2_Atom_Sequence* in = self->ports.control;
uint32_t last_t = 0;
for (const LV2_Atom_Event* ev = lv2_atom_sequence_begin(&in->body);
!lv2_atom_sequence_is_end(&in->body, in->atom.size, ev);
ev = lv2_atom_sequence_next(ev)) {
// Play the click for the time slice from last_t until now
play(self, last_t, ev->time.frames);
// Check if this event is an Object
// (or deprecated Blank to tolerate old hosts)
if (ev->body.type == uris->atom_Object ||
ev->body.type == uris->atom_Blank) {
const LV2_Atom_Object* obj = (const LV2_Atom_Object*)&ev->body;
if (obj->body.otype == uris->time_Position) {
// Received position information, update
update_position(self, obj);
}
}
// Update time for next iteration and move to next event
last_t = ev->time.frames;
}
// Play for remainder of cycle
play(self, last_t, sample_count);
}
static void
run(LV2_Handle handle, uint32_t n_samples)
{
SiSco* self = (SiSco*)handle;
const uint32_t size = (sizeof(float) * n_samples + 80) * self->n_channels;
const uint32_t capacity = self->notify->atom.size;
bool capacity_ok = true;
/* check if atom-port buffer is large enough to hold
* all audio-samples and configuration settings */
if (capacity < size + 216 + self->n_channels * 16) {
capacity_ok = false;
if (!self->printed_capacity_warning) {
fprintf(stderr, "SiSco.lv2 error: LV2 comm-buffersize is insufficient %d/%d bytes.\n",
capacity, size + 216 + self->n_channels * 16);
self->printed_capacity_warning = true;
}
}
/* prepare forge buffer and initialize atom-sequence */
lv2_atom_forge_set_buffer(&self->forge, (uint8_t*)self->notify, capacity);
lv2_atom_forge_sequence_head(&self->forge, &self->frame, 0);
/* Send settings to UI */
if (self->send_settings_to_ui && self->ui_active) {
self->send_settings_to_ui = false;
/* forge container object of type 'ui_state' */
LV2_Atom_Forge_Frame frame;
lv2_atom_forge_frame_time(&self->forge, 0);
x_forge_object(&self->forge, &frame, 1, self->uris.ui_state);
/* forge attributes for 'ui_state' */
lv2_atom_forge_property_head(&self->forge, self->uris.samplerate, 0);
lv2_atom_forge_float(&self->forge, capacity_ok ? self->rate : 0);
lv2_atom_forge_property_head(&self->forge, self->uris.ui_state_grid, 0);
lv2_atom_forge_int(&self->forge, self->ui_grid);
lv2_atom_forge_property_head(&self->forge, self->uris.ui_state_trig, 0);
lv2_atom_forge_vector(&self->forge, sizeof(float), self->uris.atom_Float,
sizeof(struct triggerstate) / sizeof(float), &self->triggerstate);
lv2_atom_forge_property_head(&self->forge, self->uris.ui_state_curs, 0);
lv2_atom_forge_vector(&self->forge, sizeof(int32_t), self->uris.atom_Int,
sizeof(struct cursorstate) / sizeof(int32_t), &self->cursorstate);
lv2_atom_forge_property_head(&self->forge, self->uris.ui_state_chn, 0);
lv2_atom_forge_vector(&self->forge, sizeof(float), self->uris.atom_Float,
self->n_channels * sizeof(struct channelstate) / sizeof(float), self->channelstate);
lv2_atom_forge_property_head(&self->forge, self->uris.ui_state_misc, 0);
lv2_atom_forge_int(&self->forge, self->ui_misc);
/* close-off frame */
lv2_atom_forge_pop(&self->forge, &frame);
}
/* Process incoming events from GUI */
if (self->control) {
LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(self->control)->body);
/* for each message from UI... */
while(!lv2_atom_sequence_is_end(&(self->control)->body, (self->control)->atom.size, ev)) {
/* .. only look at atom-events.. */
if (ev->body.type == self->uris.atom_Blank || ev->body.type == self->uris.atom_Object) {
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
/* interpret atom-objects: */
if (obj->body.otype == self->uris.ui_on) {
/* UI was activated */
self->ui_active = true;
self->send_settings_to_ui = true;
} else if (obj->body.otype == self->uris.ui_off) {
/* UI was closed */
self->ui_active = false;
} else if (obj->body.otype == self->uris.ui_state) {
/* UI sends current settings */
const LV2_Atom* grid = NULL;
const LV2_Atom* trig = NULL;
const LV2_Atom* curs = NULL;
const LV2_Atom* misc = NULL;
const LV2_Atom* chn = NULL;
lv2_atom_object_get(obj,
self->uris.ui_state_grid, &grid,
self->uris.ui_state_trig, &trig,
self->uris.ui_state_curs, &curs,
self->uris.ui_state_misc, &misc,
self->uris.ui_state_chn, &chn,
0);
if (grid && grid->type == self->uris.atom_Int) {
self->ui_grid = ((LV2_Atom_Int*)grid)->body;
}
if (misc && misc->type == self->uris.atom_Int) {
self->ui_misc = ((LV2_Atom_Int*)misc)->body;
}
if (trig && trig->type == self->uris.atom_Vector) {
LV2_Atom_Vector *vof = (LV2_Atom_Vector*)LV2_ATOM_BODY(trig);
if (vof->atom.type == self->uris.atom_Float) {
struct triggerstate *ts = (struct triggerstate *) LV2_ATOM_BODY(&vof->atom);
memcpy(&self->triggerstate, ts, sizeof(struct triggerstate));
}
}
if (curs && curs->type == self->uris.atom_Vector) {
LV2_Atom_Vector *vof = (LV2_Atom_Vector*)LV2_ATOM_BODY(curs);
if (vof->atom.type == self->uris.atom_Int) {
struct cursorstate *cs = (struct cursorstate *) LV2_ATOM_BODY(&vof->atom);
memcpy(&self->cursorstate, cs, sizeof(struct cursorstate));
}
}
if (chn && chn->type == self->uris.atom_Vector) {
LV2_Atom_Vector *vof = (LV2_Atom_Vector*)LV2_ATOM_BODY(chn);
if (vof->atom.type == self->uris.atom_Float) {
struct channelstate *cs = (struct channelstate *) LV2_ATOM_BODY(&vof->atom);
memcpy(self->channelstate, cs, self->n_channels * sizeof(struct channelstate));
}
}
}
}
ev = lv2_atom_sequence_next(ev);
}
}
/* process audio data */
for (uint32_t c = 0; c < self->n_channels; ++c) {
if (self->ui_active && capacity_ok) {
/* if UI is active, send raw audio data to UI */
tx_rawaudio(&self->forge, &self->uris, c, n_samples, self->input[c]);
}
/* if not processing in-place, forward audio */
if (self->input[c] != self->output[c]) {
memcpy(self->output[c], self->input[c], sizeof(float) * n_samples);
}
}
/* close off atom-sequence */
lv2_atom_forge_pop(&self->forge, &self->frame);
}
static void
run(LV2_Handle instance, uint32_t n_samples)
{
B3S* b3s = (B3S*)instance;
float* audio[2];
audio[0] = b3s->outL;
audio[1] = b3s->outR;
/* prepare outgoing MIDI */
const uint32_t capacity = b3s->midiout->atom.size;
static bool warning_printed = false;
if (!warning_printed && capacity < 4096) {
warning_printed = true;
fprintf(stderr, "B3LV2: LV message buffer is only %d bytes. Expect problems.\n", capacity);
fprintf(stderr, "B3LV2: if your LV2 host allows one to configure a buffersize use at least 4kBytes.\n");
}
lv2_atom_forge_set_buffer(&b3s->forge, (uint8_t*)b3s->midiout, capacity);
lv2_atom_forge_sequence_head(&b3s->forge, &b3s->frame, 0);
uint32_t written = 0;
if (b3s->queue_panic) {
b3s->queue_panic = 0;
midi_panic(b3s->inst);
}
/* Process incoming events from GUI and handle MIDI events */
if (b3s->midiin) {
LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(b3s->midiin)->body);
while(!lv2_atom_sequence_is_end(&(b3s->midiin)->body, (b3s->midiin)->atom.size, ev)) {
if (ev->body.type == b3s->uris.midi_MidiEvent) {
/* process midi messages from player */
if (written + BUFFER_SIZE_SAMPLES < ev->time.frames
&& ev->time.frames < n_samples) {
/* first syntheize sound up until the message timestamp */
written = synthSound(b3s, written, ev->time.frames, audio);
}
/* send midi message to synth, CC's will trigger hook -> update GUI */
parse_raw_midi_data(b3s->inst, (uint8_t*)(ev+1), ev->body.size);
} else if (ev->body.type == b3s->uris.atom_Blank || ev->body.type == b3s->uris.atom_Object) {
/* process messages from GUI */
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
if (obj->body.otype == b3s->uris.sb3_uiinit) {
b3s->update_gui_now = 1;
} else if (obj->body.otype == b3s->uris.sb3_uimccquery) {
midi_loopCCAssignment(b3s->inst->midicfg, 7, mcc_cb, b3s);
} else if (obj->body.otype == b3s->uris.sb3_uimccset) {
const LV2_Atom* cmd = NULL;
const LV2_Atom* flags = NULL;
lv2_atom_object_get(obj, b3s->uris.sb3_cckey, &flags, b3s->uris.sb3_ccval, &cmd, 0);
if (cmd && flags) {
midi_uiassign_cc(b3s->inst->midicfg, (const char*)LV2_ATOM_BODY(cmd), ((LV2_Atom_Int*)flags)->body);
}
} else if (obj->body.otype == b3s->uris.sb3_midipgm) {
const LV2_Atom* key = NULL;
lv2_atom_object_get(obj, b3s->uris.sb3_cckey, &key, 0);
if (key) {
installProgram(b3s->inst, ((LV2_Atom_Int*)key)->body);
}
} else if (obj->body.otype == b3s->uris.sb3_midisavepgm) {
const LV2_Atom* pgm = NULL;
const LV2_Atom* name = NULL;
lv2_atom_object_get(obj, b3s->uris.sb3_cckey, &pgm, b3s->uris.sb3_ccval, &name, 0);
if (pgm && name) {
saveProgramm(b3s->inst, (int) ((LV2_Atom_Int*)pgm)->body, (char*) LV2_ATOM_BODY(name), 0);
b3s->update_pgm_now = 1;
}
} else if (obj->body.otype == b3s->uris.sb3_loadpgm) {
iowork(b3s, obj, CMD_LOADPGM);
} else if (obj->body.otype == b3s->uris.sb3_loadcfg) {
iowork(b3s, obj, CMD_LOADCFG);
} else if (obj->body.otype == b3s->uris.sb3_savepgm) {
iowork(b3s, obj, CMD_SAVEPGM);
} else if (obj->body.otype == b3s->uris.sb3_savecfg) {
iowork(b3s, obj, CMD_SAVECFG);
} else if (obj->body.otype == b3s->uris.sb3_cfgstr) {
if (!b3s->inst_offline) {
advanced_config_set(b3s, obj);
}
} else if (obj->body.otype == b3s->uris.sb3_control) {
b3s->suspend_ui_msg = 1;
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
char *k; int v;
if (!get_cc_key_value(&b3s->uris, obj, &k, &v)) {
#ifdef DEBUGPRINT
fprintf(stderr, "B3LV2: callMIDIControlFunction(..,\"%s\", %d);\n", k, v);
#endif
callMIDIControlFunction(b3s->inst->midicfg, k, v);
}
b3s->suspend_ui_msg = 0;
}
}
ev = lv2_atom_sequence_next(ev);
}
}
/* synthesize [remaining] sound */
synthSound(b3s, written, n_samples, audio);
/* send active keys to GUI - IFF changed */
bool keychanged = false;
for (int i = 0 ; i < MAX_KEYS/32; ++i) {
if (b3s->active_keys[i] != b3s->inst->synth->_activeKeys[i]) {
keychanged = true;
}
b3s->active_keys[i] = b3s->inst->synth->_activeKeys[i];
}
if (keychanged) {
LV2_Atom_Forge_Frame frame;
lv2_atom_forge_frame_time(&b3s->forge, 0);
x_forge_object(&b3s->forge, &frame, 1, b3s->uris.sb3_activekeys);
lv2_atom_forge_property_head(&b3s->forge, b3s->uris.sb3_keyarrary, 0);
lv2_atom_forge_vector(&b3s->forge, sizeof(unsigned int), b3s->uris.atom_Int, MAX_KEYS/32, b3s->active_keys);
lv2_atom_forge_pop(&b3s->forge, &frame);
}
/* check for new instances */
postrun(b3s);
if (b3s->update_gui_now) {
b3s->update_gui_now = 0;
b3s->update_pgm_now = 1;
b3s->suspend_ui_msg = 1;
rc_loop_state(b3s->inst->state, rc_cb, b3s);
b3s->suspend_ui_msg = 0;
forge_kvconfigmessage(&b3s->forge, &b3s->uris, b3s->uris.sb3_cfgkv, "lv2.info", b3s->lv2nfo);
forge_kvcontrolmessage(&b3s->forge, &b3s->uris, "special.init", (int32_t) b3s->thirtysec);
} else if (b3s->update_pgm_now) {
b3s->update_pgm_now = 0;
loopProgammes(b3s->inst->progs, 1, pgm_cb, b3s);
}
}
static void
run(LV2_Handle instance, uint32_t n_samples)
{
ADelay* adelay = (ADelay*)instance;
const float* const input = adelay->input;
float* const output = adelay->output;
float srate = adelay->srate;
uint32_t i;
float in;
int delaysamples;
unsigned int tmp;
float inv;
float xfade;
int recalc;
if (*(adelay->inv) < 0.5) {
inv = -1.f;
} else {
inv = 1.f;
}
recalc = 0;
if (*(adelay->inv) != adelay->invertold) {
recalc = 1;
}
if (*(adelay->sync) != adelay->syncold) {
recalc = 1;
}
if (*(adelay->time) != adelay->timeold) {
recalc = 1;
}
if (*(adelay->divisor) != adelay->divisorold) {
recalc = 1;
}
if (*(adelay->lpf) != adelay->lpfold) {
lpfRbj(adelay, *(adelay->lpf), srate);
}
if (*(adelay->gain) != adelay->gainold) {
recalc = 1;
}
if (recalc) {
if (*(adelay->sync) > 0.5f && adelay->bpmvalid) {
*(adelay->delaytime) = adelay->beatunit * 1000.f * 60.f / (adelay->bpm * *(adelay->divisor));
} else {
*(adelay->delaytime) = *(adelay->time);
}
delaysamples = (int)(*(adelay->delaytime) * srate) / 1000;
adelay->tap[adelay->next] = delaysamples;
}
xfade = 0.f;
for (i = 0; i < n_samples; i++) {
in = input[i];
adelay->z[adelay->posz] = in; // + feedb / 100. * fbstate;
adelay->fbstate = 0.f;
int p = adelay->posz - adelay->tap[adelay->active]; // active line
if (p<0) p += MAX_DELAY;
adelay->fbstate += adelay->z[p];
if (recalc) {
xfade += 1.0f / (float)n_samples;
adelay->fbstate *= (1.-xfade);
int p = adelay->posz - adelay->tap[adelay->next]; // next line
if (p<0) p += MAX_DELAY;
adelay->fbstate += adelay->z[p] * xfade;
}
output[i] = from_dB(*(adelay->gain)) * ((100.-*(adelay->wetdry)) / 100. * in + *(adelay->wetdry) / 100. * -inv * runfilter(adelay, adelay->fbstate));
if (++(adelay->posz) >= MAX_DELAY) {
adelay->posz = 0;
}
}
adelay->lpfold = *(adelay->lpf);
adelay->divisorold = *(adelay->divisor);
adelay->gainold = *(adelay->gain);
adelay->invertold = *(adelay->inv);
adelay->timeold = *(adelay->time);
adelay->syncold = *(adelay->sync);
adelay->wetdryold = *(adelay->wetdry);
adelay->delaytimeold = *(adelay->delaytime);
adelay->delaysamplesold = delaysamples;
if (recalc) {
tmp = adelay->active;
adelay->active = adelay->next;
adelay->next = tmp;
}
if (adelay->atombpm) {
LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(adelay->atombpm)->body);
while(!lv2_atom_sequence_is_end(&(adelay->atombpm)->body, (adelay->atombpm)->atom.size, ev)) {
if (ev->body.type == adelay->uris.atom_Blank || ev->body.type == adelay->uris.atom_Object) {
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
if (obj->body.otype == adelay->uris.time_Position) {
update_bpm(adelay, obj);
}
}
ev = lv2_atom_sequence_next(ev);
}
}
}
static void
dr14_run(LV2_Handle instance, uint32_t n_samples)
{
LV2dr14* self = (LV2dr14*)instance;
self->follow_host_transport = (*self->p_follow_host_transport != 0);
/* Process events (reset from GUI, transport from host) */
LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(self->control)->body);
while(!lv2_atom_sequence_is_end(&(self->control)->body, (self->control)->atom.size, ev)) {
if (ev->body.type == self->uris.atom_Blank || ev->body.type == self->uris.atom_Object) {
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
if (obj->body.otype == self->uris.time_Position) {
parse_time_position(self, obj);
}
if (obj->body.otype == self->uris.mtr_dr14reset) {
reset_peaks(self);
}
if (obj->body.otype == self->uris.mtr_meters_on) {
self->reinit_gui = true;
}
if (obj->body.otype == self->uris.mtr_meters_off) {
self->reinit_gui = false;
}
}
ev = lv2_atom_sequence_next(ev);
}
if (*self->p_reset_button != 0 ) {
reset_peaks(self);
}
/* calculate
* - RMS for bar-graph display
* - dBTP peak for DR calculation
* - dBTP filtered for bar-graph display
*/
for (uint32_t c = 0; c < self->n_channels; ++c) {
self->km[c]->process(self->p_input[c], n_samples);
self->tp[c]->process(self->p_input[c], n_samples);
}
/* DR specs says RMS is to be calculated over a 3 second
* non-overlapping window. Aaarg! well, this is not the place
* to question the stupidity of the spec. let's do it:
*/
uint64_t scnt = self->sample_count;
const uint64_t slmt = self->n_sample_cnt;
if (self->dr_operation_mode) {
// TODO: optimize, unroll loop to remaining samples / block
for (uint32_t s = 0; s < n_samples; ++s) {
for (uint32_t c = 0; c < self->n_channels; ++c) {
const float v = self->p_input[c][s];
self->rms_sum[c] += v * v;
self->peak_cur[c] = MAX(self->peak_cur[c], v);
}
if (++scnt > slmt) {
dr14_calc_rms_score(self);
scnt = 0;
}
}
self->sample_count = scnt;
}
/* assing values to ports, clap to ranges,
* average DR value forall channels
*/
float dr_total = 0;
int dr_valid = 0;
for (uint32_t c = 0; c < self->n_channels; ++c) {
float rv, rp;
float pv, pp;
self->tp[c]->read(pv, pp);
self->km[c]->read(rv, rp);
self->m_dbtp[c] = MAX(self->m_dbtp[c], pp);
/* assign output data to ports */
*self->p_v_rms[c] = coeff_to_db(rv);
*self->p_v_peak[c] = coeff_to_db(pv);
*self->p_m_peak[c] = coeff_to_db(self->m_dbtp[c]);
if (self->dr_operation_mode) {
const float rdb = self->m_rms[c];
const float pdb = self->m_peak[c];
const float dr = MIN(0,pdb) - rdb;
if (rdb > -80 && pdb > -80) {
dr_total += dr;
dr_valid++;
}
*self->p_dr[c] = (rdb > -80 && pdb > -80) ? MAX(1, MIN(20, dr)) : 21;
*self->p_m_rms[c] = rdb;
} else {
*self->p_m_rms[c] = coeff_to_db(rp);
}
}
if (self->n_channels > 1 && self->dr_operation_mode) {
if (dr_valid > 0) {
*self->p_dr_total = MAX(1, MIN(20, dr_total / (float) dr_valid));
} else {
*self->p_dr_total = 21;
}
}
*self->p_block_count = 3.0 * self->num_fragments;
if (self->reinit_gui) {
if (self->n_channels > 1 && self->dr_operation_mode) {
*self->p_dr_total = 21;
}
for (uint32_t c = 0; c < self->n_channels; ++c) {
*self->p_m_peak[c] = -100;
*self->p_m_rms[c] = -100;
if (self->dr_operation_mode) {
*self->p_dr[c] = 21;
}
}
*self->p_block_count = -1 - (rand() & 0xffff);
}
if (self->p_input[0] != self->p_output[0]) {
memcpy(self->p_output[0], self->p_input[0], sizeof(float) * n_samples);
}
if (self->p_input[1] != self->p_output[1]) {
memcpy(self->p_output[1], self->p_input[1], sizeof(float) * n_samples);
}
}
/** ==== Run Method ==== */
static void
run(LV2_Handle handle, uint32_t n_samples)
{
EgScope* self = (EgScope*)handle;
/* Ensure notify port buffer is large enough to hold all audio-samples and
configuration settings. A minimum size was requested in the .ttl file,
but check here just to be sure.
TODO: Explain these magic numbers.
*/
const size_t size = (sizeof(float) * n_samples + 64) * self->n_channels;
const uint32_t space = self->notify->atom.size;
if (space < size + 128) {
/* Insufficient space, report error and do nothing. Note that a
real-time production plugin mustn't call log functions in run(), but
this can be useful for debugging and example purposes.
*/
lv2_log_error(&self->logger, "Buffer size is insufficient\n");
return;
}
// Prepare forge buffer and initialize atom-sequence
lv2_atom_forge_set_buffer(&self->forge, (uint8_t*)self->notify, space);
lv2_atom_forge_sequence_head(&self->forge, &self->frame, 0);
/* Send settings to UI
The plugin can continue to run while the UI is closed and re-opened.
The state and settings of the UI are kept here and transmitted to the UI
every time it asks for them or if the user initializes a 'load preset'.
*/
if (self->send_settings_to_ui && self->ui_active) {
self->send_settings_to_ui = false;
// Forge container object of type 'ui_state'
LV2_Atom_Forge_Frame frame;
lv2_atom_forge_frame_time(&self->forge, 0);
lv2_atom_forge_object(&self->forge, &frame, 0, self->uris.ui_State);
// Add UI state as properties
lv2_atom_forge_key(&self->forge, self->uris.ui_spp);
lv2_atom_forge_int(&self->forge, self->ui_spp);
lv2_atom_forge_key(&self->forge, self->uris.ui_amp);
lv2_atom_forge_float(&self->forge, self->ui_amp);
lv2_atom_forge_key(&self->forge, self->uris.param_sampleRate);
lv2_atom_forge_float(&self->forge, self->rate);
lv2_atom_forge_pop(&self->forge, &frame);
}
// Process incoming events from GUI
if (self->control) {
const LV2_Atom_Event* ev = lv2_atom_sequence_begin(
&(self->control)->body);
// For each incoming message...
while (!lv2_atom_sequence_is_end(
&self->control->body, self->control->atom.size, ev)) {
// If the event is an atom:Blank object
if (ev->body.type == self->uris.atom_Blank) {
const LV2_Atom_Object* obj = (const LV2_Atom_Object*)&ev->body;
if (obj->body.otype == self->uris.ui_On) {
// If the object is a ui-on, the UI was activated
self->ui_active = true;
self->send_settings_to_ui = true;
} else if (obj->body.otype == self->uris.ui_Off) {
// If the object is a ui-off, the UI was closed
self->ui_active = false;
} else if (obj->body.otype == self->uris.ui_State) {
// If the object is a ui-state, it's the current UI settings
const LV2_Atom* spp = NULL;
const LV2_Atom* amp = NULL;
lv2_atom_object_get(obj, self->uris.ui_spp, &spp,
self->uris.ui_amp, &,
0);
if (spp) {
self->ui_spp = ((const LV2_Atom_Int*)spp)->body;
}
if (amp) {
self->ui_amp = ((const LV2_Atom_Float*)amp)->body;
}
}
}
ev = lv2_atom_sequence_next(ev);
}
}
// Process audio data
for (uint32_t c = 0; c < self->n_channels; ++c) {
if (self->ui_active) {
// If UI is active, send raw audio data to UI
tx_rawaudio(&self->forge, &self->uris, c, n_samples, self->input[c]);
}
// If not processing audio in-place, forward audio
if (self->input[c] != self->output[c]) {
memcpy(self->output[c], self->input[c], sizeof(float) * n_samples);
}
}
// Close off sequence
lv2_atom_forge_pop(&self->forge, &self->frame);
}
static void
run (LV2_Handle instance, uint32_t n_samples)
{
MidiMap* self = (MidiMap*)instance;
if (!self->midiout || !self->midiin) {
return;
}
/* prepare midiout port */
const uint32_t capacity = self->midiout->atom.size;
lv2_atom_forge_set_buffer (&self->forge, (uint8_t*)self->midiout, capacity);
lv2_atom_forge_sequence_head (&self->forge, &self->frame, 0);
/* update internal frame counter (host only sends update on change) */
if (self->transport_rolling) {
self->transport_frame += n_samples * self->transport_speed;
} else {
self->play_cnt = 0;
}
/* inform the GUI */
if (self->inform_ui) {
self->inform_ui = false;
inform_ui (self);
}
uint32_t gen_n_samples = 0;
/* Process incoming midi events */
LV2_Atom_Event* ev = lv2_atom_sequence_begin (&(self->midiin)->body);
while (!lv2_atom_sequence_is_end (&(self->midiin)->body, (self->midiin)->atom.size, ev)) {
if (ev->body.type == self->uris.midi_MidiEvent) {
/* generate signals until current time */
generate_until (self, gen_n_samples, ev->time.frames);
gen_n_samples = ev->time.frames;
/* process midi event */
filter_midimessage (self, ev->time.frames, (uint8_t*)(ev+1), ev->body.size);
} else if (ev->body.type == self->uris.atom_Blank || ev->body.type == self->uris.atom_Object) {
/* schedule loading config file */
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
if (obj->body.otype == self->uris.time_Position) {
parse_host_transport (self, obj);
}
else if (obj->body.otype == self->uris.patch_Set) {
self->schedule->schedule_work (self->schedule->handle, lv2_atom_total_size (&ev->body), &ev->body);
}
}
ev = lv2_atom_sequence_next (ev);
}
/* generate remaining events */
generate_until (self, gen_n_samples, n_samples);
/* keep track of position (for generator) */
self->monotonic_cnt += n_samples;
if (self->transport_rolling) {
self->play_cnt += n_samples;
}
/* report active rules */
*self->p_rulecount = self->rules ? self->rules->count : 0;
}
static void
bim_run(LV2_Handle instance, uint32_t n_samples)
{
LV2meter* self = (LV2meter*)instance;
const uint32_t capacity = self->notify->atom.size;
assert(capacity > 920);
lv2_atom_forge_set_buffer(&self->forge, (uint8_t*)self->notify, capacity);
lv2_atom_forge_sequence_head(&self->forge, &self->frame, 0);
if (self->send_state_to_ui && self->ui_active) {
self->send_state_to_ui = false;
forge_kvcontrolmessage(&self->forge, &self->uris, self->uris.mtr_control, CTL_SAMPLERATE, self->rate);
}
/* Process incoming events from GUI */
if (self->control) {
LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(self->control)->body);
while(!lv2_atom_sequence_is_end(&(self->control)->body, (self->control)->atom.size, ev)) {
if (ev->body.type == self->uris.atom_Blank || ev->body.type == self->uris.atom_Object) {
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
if (obj->body.otype == self->uris.mtr_meters_on) {
self->ui_active = true;
self->send_state_to_ui = true;
}
else if (obj->body.otype == self->uris.mtr_meters_off) {
self->ui_active = false;
}
else if (obj->body.otype == self->uris.mtr_meters_cfg) {
int k; float v;
get_cc_key_value(&self->uris, obj, &k, &v);
switch (k) {
case CTL_START:
self->ebu_integrating = true;
break;
case CTL_PAUSE:
self->ebu_integrating = false;
break;
case CTL_RESET:
bim_reset(self);
self->send_state_to_ui = true;
break;
case CTL_AVERAGE:
self->bim_average = true;
break;
case CTL_WINDOWED:
self->bim_average = false;
break;
default:
break;
}
}
}
ev = lv2_atom_sequence_next(ev);
}
}
#if 0
static uint32_t max_post = 0;
if (self->notify->atom.size > max_post) {
max_post = self->notify->atom.size;
printf("new post parse: %d\n", max_post);
}
#endif
/* process */
if (self->ebu_integrating && self->integration_time < 2147483647) {
/* currently 'self->histS' is int32,
* the max peak that can be recorded is 2^31,
* for now we simply limit data-acquisition to at
* most 2^31 points.
*/
if (self->integration_time > 2147483647 - n_samples) {
self->integration_time = 2147483647;
} else {
for (uint32_t s = 0; s < n_samples; ++s) {
float_stats(self, self->input[0] + s);
}
self->integration_time += n_samples;
}
}
const int fps_limit = n_samples * ceil(self->rate / (5.f * n_samples)); // ~ 5fps
self->radar_resync += n_samples;
if (self->radar_resync >= fps_limit || self->send_state_to_ui) {
self->radar_resync = self->radar_resync % fps_limit;
if (self->ui_active && (self->ebu_integrating || self->send_state_to_ui)) {
LV2_Atom_Forge_Frame frame;
lv2_atom_forge_frame_time(&self->forge, 0);
x_forge_object(&self->forge, &frame, 1, self->uris.bim_stats);
lv2_atom_forge_property_head(&self->forge, self->uris.ebu_integr_time, 0);
lv2_atom_forge_long(&self->forge, self->integration_time);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_zero, 0);
lv2_atom_forge_int(&self->forge, self->bim_zero);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_pos, 0);
lv2_atom_forge_int(&self->forge, self->bim_pos);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_max, 0);
lv2_atom_forge_double(&self->forge, self->bim_max);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_min, 0);
lv2_atom_forge_double(&self->forge, self->bim_min);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_nan, 0);
lv2_atom_forge_int(&self->forge, self->bim_nan);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_inf, 0);
lv2_atom_forge_int(&self->forge, self->bim_inf);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_den, 0);
lv2_atom_forge_int(&self->forge, self->bim_den);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_data, 0);
lv2_atom_forge_vector(&self->forge, sizeof(int32_t), self->uris.atom_Int, BIM_LAST, self->histS);
lv2_atom_forge_pop(&self->forge, &frame);
}
if (self->ui_active) {
LV2_Atom_Forge_Frame frame;
lv2_atom_forge_frame_time(&self->forge, 0);
x_forge_object(&self->forge, &frame, 1, self->uris.bim_information);
lv2_atom_forge_property_head(&self->forge, self->uris.ebu_integrating, 0);
lv2_atom_forge_bool(&self->forge, self->ebu_integrating);
lv2_atom_forge_property_head(&self->forge, self->uris.bim_averaging, 0);
lv2_atom_forge_bool(&self->forge, self->bim_average);
lv2_atom_forge_pop(&self->forge, &frame);
}
if (!self->bim_average) {
bim_clear (self);
}
}
/* foward audio-data */
if (self->input[0] != self->output[0]) {
memcpy(self->output[0], self->input[0], sizeof(float) * n_samples);
}
#if 0
//printf("forged %d bytes\n", self->notify->atom.size);
static uint32_t max_cap = 0;
if (self->notify->atom.size > max_cap) {
max_cap = self->notify->atom.size;
printf("new max: %d (of %d avail)\n", max_cap, capacity);
}
#endif
}
static void
run(LV2_Handle instance, uint32_t n_samples)
{
uint32_t i,c;
BalanceControl* self = (BalanceControl*)instance;
const float balance = *self->balance;
const float trim = db_to_gain(*self->trim);
float gain_left = 1.0;
float gain_right = 1.0;
const int ascnt = self->samplerate / UPDATE_FREQ;
const uint32_t capacity = self->notify->atom.size;
lv2_atom_forge_set_buffer(&self->forge, (uint8_t*)self->notify, capacity);
lv2_atom_forge_sequence_head(&self->forge, &self->frame, 0);
/* reset after state restore */
if (self->queue_stateswitch) {
self->queue_stateswitch = 0;
self->peak_integrate_pref = self->state[0] * self->samplerate;
self->meter_falloff = self->state[1] / UPDATE_FREQ;
self->peak_hold = self->state[2] * UPDATE_FREQ;
self->peak_integrate_pref = MAX(0, self->peak_integrate_pref);
self->peak_integrate_pref = MIN(self->peak_integrate_pref, self->peak_integrate_max);
self->meter_falloff = MAX(0, self->meter_falloff);
self->meter_falloff = MIN(self->meter_falloff, 1000);
self->peak_hold = MAX(0, self->peak_hold);
self->peak_hold = MIN(self->peak_hold, 60 * UPDATE_FREQ);
reset_uicom(self);
send_cfg_to_ui(self);
}
/* Process incoming events from GUI */
if (self->control) {
LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(self->control)->body);
while(!lv2_atom_sequence_is_end(&(self->control)->body, (self->control)->atom.size, ev)) {
if (ev->body.type == self->uris.atom_Blank || ev->body.type == self->uris.atom_Object) {
const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
if (obj->body.otype == self->uris.blc_meters_on) {
if (self->uicom_active == 0) {
reset_uicom(self);
send_cfg_to_ui(self);
self->uicom_active = 1;
}
}
if (obj->body.otype == self->uris.blc_meters_off) {
self->uicom_active = 0;
}
if (obj->body.otype == self->uris.blc_meters_cfg) {
const LV2_Atom* key = NULL;
const LV2_Atom* value = NULL;
lv2_atom_object_get(obj, self->uris.blc_cckey, &key, self->uris.blc_ccval, &value, 0);
if (value && key) {
update_meter_cfg(self, ((LV2_Atom_Int*)key)->body, ((LV2_Atom_Float*)value)->body);
}
}
}
ev = lv2_atom_sequence_next(ev);
}
}
/* pre-calculate parameters */
if (balance < 0) {
gain_right = 1.0 + RAIL(balance, -1.0, 0.0);
} else if (balance > 0) {
gain_left = 1.0 - RAIL(balance, 0.0, 1.0);
}
switch ((int) *self->unitygain) {
case 1:
{
/* maintain amplitude sum */
const double gaindiff = (gain_left - gain_right);
gain_left = 1.0 + gaindiff;
gain_right = 1.0 - gaindiff;
}
break;
case 2:
{
/* equal power*/
if (balance < 0) {
gain_right = MAX(.5, gain_right);
gain_left = db_to_gain(-gain_to_db(gain_right));
} else {
gain_left = MAX(.5, gain_left);
gain_right = db_to_gain(-gain_to_db(gain_left));
}
}
case 0:
/* 'tradidional' balance */
break;
}
if (*(self->phase[C_LEFT])) gain_left *=-1;
if (*(self->phase[C_RIGHT])) gain_right *=-1;
/* keep track of input levels -- only if GUI is visiable */
if (self->uicom_active) {
for (c=0; c < CHANNELS; ++c) {
for (i=0; i < n_samples; ++i) {
/* input peak meter */
const float ps = fabsf(self->input[c][i]);
if (ps > self->p_peak_in[c]) self->p_peak_in[c] = ps;
if (self->peak_integrate_pref < 1) {
const float psm = ps * ps;
if (psm > self->p_peak_inM[c]) self->p_peak_inM[c] = psm;
continue;
}
/* integrated level, peak */
const int pip = (self->peak_integrate_pos + i ) % self->peak_integrate_pref;
const double p_sig = SQUARE(self->input[c][i]);
self->p_peak_inP[c] += p_sig - self->p_peak_inPi[c][pip];
self->p_peak_inPi[c][pip] = p_sig;
/* peak of integrated signal */
const float psm = self->p_peak_inP[c] / (double) self->peak_integrate_pref;
if (psm > self->p_peak_inM[c]) self->p_peak_inM[c] = psm;
}
}
}
/* process audio -- delayline + balance & gain */
process_channel(self, gain_left * trim, C_LEFT, n_samples);
process_channel(self, gain_right * trim, C_RIGHT, n_samples);
/* swap/assign channels */
uint32_t pos = 0;
if (self->c_monomode != (int) *self->monomode) {
/* smooth change */
const uint32_t fade_len = (n_samples >= FADE_LEN) ? FADE_LEN : n_samples;
for (; pos < fade_len; pos++) {
const float gain = (float)pos / (float)fade_len;
float x1[CHANNELS], x2[CHANNELS];
channel_map_change(self, self->c_monomode, pos, x1);
channel_map_change(self, (int) *self->monomode, pos, x2);
self->output[C_LEFT][pos] = x1[C_LEFT] * (1.0 - gain) + x2[C_LEFT] * gain;
self->output[C_RIGHT][pos] = x1[C_RIGHT] * (1.0 - gain) + x2[C_RIGHT] * gain;
}
}
channel_map(self, (int) *self->monomode, pos, n_samples);
self->c_monomode = (int) *self->monomode;
/* audio processing done */
if (!self->uicom_active) {
return;
}
/* output peak meter */
for (c=0; c < CHANNELS; ++c) {
for (i=0; i < n_samples; ++i) {
/* peak */
const float ps = fabsf(self->output[c][i]);
if (ps > self->p_peak_out[c]) self->p_peak_out[c] = ps;
if (self->peak_integrate_pref < 1) {
const float psm = ps * ps;
if (psm > self->p_peak_outM[c]) self->p_peak_outM[c] = psm;
continue;
}
/* integrated level, peak */
const int pip = (self->peak_integrate_pos + i ) % self->peak_integrate_pref;
const double p_sig = SQUARE(self->output[c][i]);
self->p_peak_outP[c] += p_sig - self->p_peak_outPi[c][pip];
self->p_peak_outPi[c][pip] = p_sig;
/* peak of integrated signal */
const float psm = self->p_peak_outP[c] / (double) self->peak_integrate_pref;
if (psm > self->p_peak_outM[c]) self->p_peak_outM[c] = psm;
}
}
if (self->peak_integrate_pref > 0) {
self->peak_integrate_pos = (self->peak_integrate_pos + n_samples ) % self->peak_integrate_pref;
}
/* simple output phase correlation */
for (i=0; i < n_samples; ++i) {
const double p_pos = SQUARE(self->output[C_LEFT][i] + self->output[C_RIGHT][i]);
const double p_neg = SQUARE(self->output[C_LEFT][i] - self->output[C_RIGHT][i]);
/* integrate over 500ms */
self->p_phase_outP += p_pos - self->p_phase_outPi[self->phase_integrate_pos];
self->p_phase_outN += p_neg - self->p_phase_outNi[self->phase_integrate_pos];
self->p_phase_outPi[self->phase_integrate_pos] = p_pos;
self->p_phase_outNi[self->phase_integrate_pos] = p_neg;
self->phase_integrate_pos = (self->phase_integrate_pos + 1) % self->phase_integrate_max;
}
/* abs peak hold */
#define PKM(A,CHN,ID) \
{ \
const float peak = VALTODB(self->p_peak_##A[CHN]); \
if (peak > self->p_max_##A[CHN]) { \
self->p_max_##A[CHN] = peak; \
self->p_tme_##A[CHN] = 0; \
forge_kvcontrolmessage(&self->forge, &self->uris, ID, self->p_max_##A[CHN]); \
} else if (self->peak_hold <= 0) { \
(self->p_tme_##A[CHN])=0; /* infinite hold */ \
} else if (self->p_tme_##A[CHN] <= self->peak_hold) { \
(self->p_tme_##A[CHN])++; \
} else if (self->meter_falloff == 0) { \
self->p_max_##A[CHN] = peak; \
forge_kvcontrolmessage(&self->forge, &self->uris, ID, self->p_max_##A[CHN]); \
} else { \
self->p_max_##A[CHN] -= self->meter_falloff; \
self->p_max_##A[CHN] = MAX(peak, self->p_max_##A[CHN]); \
forge_kvcontrolmessage(&self->forge, &self->uris, ID, self->p_max_##A[CHN]); \
} \
}
/* RMS meter */
#define PKF(A,CHN,ID) \
{ \
float dbp = VALTODB(sqrt(2.0 * self->p_peak_##A##M[CHN])); \
if (dbp > self->p_vpeak_##A[CHN]) { \
self->p_vpeak_##A[CHN] = dbp; \
} else if (self->meter_falloff == 0) { \
self->p_vpeak_##A[CHN] = dbp; \
} else { \
self->p_vpeak_##A[CHN] -= self->meter_falloff; \
self->p_vpeak_##A[CHN] = MAX(dbp, self->p_vpeak_##A[CHN]); \
} \
forge_kvcontrolmessage(&self->forge, &self->uris, ID, (self->p_vpeak_##A [CHN])); \
}
/* report peaks to UI */
self->p_peakcnt += n_samples;
if (self->p_peakcnt > ascnt) {
PKF(in, C_LEFT, METER_IN_LEFT)
PKF(in, C_RIGHT, METER_IN_RIGHT);
PKF(out, C_LEFT, METER_OUT_LEFT);
PKF(out, C_RIGHT, METER_OUT_RIGHT);
PKM(in, C_LEFT, PEAK_IN_LEFT);
PKM(in, C_RIGHT, PEAK_IN_RIGHT);
PKM(out, C_LEFT, PEAK_OUT_LEFT);
PKM(out, C_RIGHT, PEAK_OUT_RIGHT);
#define RMSF(A) sqrt( ( (A) / (double)self->phase_integrate_max ) + 1.0e-12 )
double phase = 0.0;
const double phasdiv = self->p_phase_outP + self->p_phase_outN;
if (phasdiv >= 1.0e-6) {
phase = (RMSF(self->p_phase_outP) - RMSF(self->p_phase_outN)) / RMSF(phasdiv);
} else if (self->p_phase_outP > .001 && self->p_phase_outN > .001) {
phase = 1.0;
}
forge_kvcontrolmessage(&self->forge, &self->uris, PHASE_OUT, phase);
self->p_peakcnt -= ascnt;
for (c=0; c < CHANNELS; ++c) {
self->p_peak_in[c] = -INFINITY;
self->p_peak_out[c] = -INFINITY;
self->p_peak_inM[c] = -INFINITY;
self->p_peak_outM[c] = -INFINITY;
}
}
/* report values to UI - if changed*/
float bal = gain_to_db(fabsf(gain_left));
if (bal != self->p_bal[C_LEFT]) {
forge_kvcontrolmessage(&self->forge, &self->uris, GAIN_LEFT, bal);
}
self->p_bal[C_LEFT] = bal;
bal = gain_to_db(fabsf(gain_right));
if (bal != self->p_bal[C_RIGHT]) {
forge_kvcontrolmessage(&self->forge, &self->uris, GAIN_RIGHT, bal);
}
self->p_bal[C_RIGHT] = bal;
if (self->p_dly[C_LEFT] != self->c_dly[C_LEFT]) {
forge_kvcontrolmessage(&self->forge, &self->uris, DELAY_LEFT, (float) self->c_dly[C_LEFT] / self->samplerate);
}
self->p_dly[C_LEFT] = self->c_dly[C_LEFT];
if (self->p_dly[C_RIGHT] != self->c_dly[C_RIGHT]) {
forge_kvcontrolmessage(&self->forge, &self->uris, DELAY_RIGHT, (float) self->c_dly[C_RIGHT] / self->samplerate);
}
self->p_dly[C_RIGHT] = self->c_dly[C_RIGHT];
}