static void clone_cb_mcc(int fnid, const char *key, const char *kv, unsigned char val, void *arg) {
if (fnid >= 0) {
callMIDIControlFunction(((struct b_instance *) arg)->midicfg, key, val);
}
}
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 LV2_State_Status
restore(LV2_Handle instance,
LV2_State_Retrieve_Function retrieve,
LV2_State_Handle handle,
uint32_t flags,
const LV2_Feature* const* features)
{
B3S* b3s = (B3S*)instance;
size_t size;
uint32_t type;
uint32_t valflags;
const void* value = retrieve(handle, b3s->uris.sb3_state, &size, &type, &valflags);
if (!value) {
return LV2_STATE_ERR_UNKNOWN;
}
if (b3s->inst_offline) {
fprintf(stderr, "B3LV2: restore ignored. re-init in progress\n");
return LV2_STATE_ERR_UNKNOWN;
}
b3s->inst_offline = (b_instance*) calloc(1, sizeof(struct b_instance));
allocSynth(b3s->inst_offline);
const char* cfg = (const char*)value;
const char *te, *ts = cfg;
LOCALEGUARD_START;
/* pass1 - evaulate CFG -- before initializing synth */
while (ts && *ts && (te=strchr(ts, '\n'))) {
char *val;
char kv[1024];
memcpy(kv, ts, te-ts);
kv[te-ts]=0;
#ifdef DEBUGPRINT
fprintf(stderr, "B3LV2 CFG Pass1: %s\n", kv);
#endif
if(kv[0]=='C' && (val=strchr(kv,'='))) {
*val=0;
#ifdef DEBUGPRINT
fprintf(stderr, "B3LV2: evaluateConfigKeyValue(..,\"%s\", \"%s\");\n", kv+2, val+1);
#endif
evaluateConfigKeyValue((void*)b3s->inst_offline, kv+2, val+1);
}
else if(kv[0]=='P') {
#ifdef DEBUGPRINT
printf("PGM '%s'\n", kv+2);
#endif
loadProgrammeString(b3s->inst_offline->progs, kv+2);
}
ts=te+1;
}
initSynth(b3s->inst_offline, SampleRateD);
/* pass2 - replay CC's after initializing synth */
ts = cfg;
while (ts && *ts && (te=strchr(ts, '\n'))) {
char *val;
char kv[1024];
memcpy(kv, ts, te-ts);
kv[te-ts]=0;
#ifdef DEBUGPRINT
fprintf(stderr, "B3LV2 CFG Pass2: %s\n", kv);
#endif
if(kv[0]=='M' && (val=strchr(kv,'='))) {
*val=0;
#ifdef DEBUGPRINT
fprintf(stderr, "B3LV2: callMIDIControlFunction(..,\"%s\", %d);\n", kv+2, atoi(val+1));
#endif
callMIDIControlFunction(b3s->inst_offline->midicfg, kv+2, atoi(val+1));
}
ts=te+1;
}
LOCALEGUARD_END;
b3s->swap_instances = 1;
return LV2_STATE_SUCCESS;
}
/**
* This is the routine called by the MIDI parser when it detects
* a Program Change message.
*/
void installProgram (void *instance, unsigned char uc) {
int p = (int) uc;
b_instance * inst = (b_instance*) instance;
p += inst->progs->MIDIControllerPgmOffset;
if ((0 < p) && (p < MAXPROGS)) {
Programme * PGM = &(inst->progs->programmes[p]);
unsigned int flags0 = PGM->flags[0];
#ifdef DEBUG_MIDI_PROGRAM_CHANGES
char display[128];
#endif
if (flags0 & FL_INUSE) {
#ifdef DEBUG_MIDI_PROGRAM_CHANGES
strcpy (display, PGM->name);
#endif
if (flags0 & FL_DRWRND) {
char buf [32];
if (flags0 & FL_DRAWBR) {
randomizeDrawbars (PGM->drawbars, buf);
#ifdef DEBUG_MIDI_PROGRAM_CHANGES
strcat (display, "UPR:");
strcat (display, buf);
#endif
}
if (flags0 & FL_LOWDRW) {
randomizeDrawbars (PGM->lowerDrawbars, buf);
#ifdef DEBUG_MIDI_PROGRAM_CHANGES
strcat (display, "LOW:");
strcat (display, buf);
#endif
}
if (flags0 & FL_PDLDRW) {
randomizeDrawbars (PGM->pedalDrawbars, buf);
#ifdef DEBUG_MIDI_PROGRAM_CHANGES
strcat (display, "PDL:");
strcat (display, buf);
#endif
}
}
#ifdef DEBUG_MIDI_PROGRAM_CHANGES
/* this is not RT safe */
//fprintf (stdout, "\rPGM: %s \r", display); fflush (stdout);
fprintf (stdout, "PGM: %s\n", display);
#endif
if (flags0 & FL_DRAWBR) {
setDrawBars (inst, 0, PGM->drawbars);
}
if (flags0 & FL_LOWDRW) {
setDrawBars (inst, 1, PGM->lowerDrawbars);
}
if (flags0 & FL_PDLDRW) {
setDrawBars (inst, 2, PGM->pedalDrawbars);
}
if (flags0 & FL_SCANNR) {
//setVibrato (inst->synth, PGM->scanner & 0x00FF);
assert((PGM->scanner & 0xff) > 0);
int knob = ((PGM->scanner & 0xf) << 1) - ((PGM->scanner & CHO_) ? 1 : 2);
callMIDIControlFunction(inst->midicfg, "vibrato.knob", knob * 23);
}
if (flags0 & FL_VCRUPR) {
//setVibratoUpper (inst->synth, PGM->scanner & 0x200);
int rt = getVibratoRouting(inst->synth) & ~0x2;
rt |= (PGM->scanner & 0x200) ? 2 : 0;
callMIDIControlFunction(inst->midicfg, "vibrato.routing", rt << 5);
}
if (flags0 & FL_VCRLWR) {
//setVibratoLower (inst->synth, PGM->scanner & 0x100);
int rt = getVibratoRouting(inst->synth) & ~0x1;
rt |= (PGM->scanner & 0x100) ? 1 : 0;
callMIDIControlFunction(inst->midicfg, "vibrato.routing", rt << 5);
}
if (flags0 & FL_PRCENA) {
setPercussionEnabled (inst->synth, PGM->percussionEnabled);
callMIDIControlFunction(inst->midicfg, "percussion.enable", PGM->percussionEnabled ? 127 : 0);
}
if (flags0 & FL_PRCVOL) {
//setPercussionVolume (inst->synth, PGM->percussionVolume);
callMIDIControlFunction(inst->midicfg, "percussion.volume", PGM->percussionVolume ? 127 : 0);
}
if (flags0 & FL_PRCSPD) {
//setPercussionFast (inst->synth, PGM->percussionSpeed);
callMIDIControlFunction(inst->midicfg, "percussion.decay", PGM->percussionSpeed ? 127 : 0);
}
if (flags0 & FL_PRCHRM) {
//setPercussionFirst (inst->synth, PGM->percussionHarmonic);
callMIDIControlFunction(inst->midicfg, "percussion.harmonic", PGM->percussionHarmonic ? 127 : 0);
}
if (flags0 & FL_OVRSEL) {
//setClean (inst->preamp, PGM->overdriveSelect);
callMIDIControlFunction(inst->midicfg, "overdrive.enable", PGM->overdriveSelect ? 0 : 127);
}
if (flags0 & FL_ROTENA) {
/* Rotary enabled */
}
if (flags0 & FL_ROTSPS) {
// setRevSelect (inst->whirl, (int) (PGM->rotarySpeedSelect));
callMIDIControlFunction(inst->midicfg, "rotary.speed-preset", PGM->rotarySpeedSelect * 32);
}
if (flags0 & FL_RVBMIX) {
//setReverbMix (inst->reverb, PGM->reverbMix);
callMIDIControlFunction(inst->midicfg, "reverb.mix-preset", (PGM->reverbMix * 127.0));
}
/* TODO -- keyboard split & transpose are not yet saved */
if (flags0 & (FL_KSPLTL|FL_KSPLTP|FL_TRA_PD|FL_TRA_LM|FL_TRA_UM)) {
int b;
b = (flags0 & FL_KSPLTP) ? 1 : 0;
b |= (flags0 & FL_KSPLTL) ? 2 : 0;
b |= (flags0 & FL_TRA_PD) ? 4 : 0;
b |= (flags0 & FL_TRA_LM) ? 8 : 0;
b |= (flags0 & FL_TRA_UM) ? 16 : 0;
setKeyboardSplitMulti (inst->midicfg, b,
PGM->keyboardSplitPedals,
PGM->keyboardSplitLower,
PGM->transpose[TR_CHA_PD],
PGM->transpose[TR_CHA_LM],
PGM->transpose[TR_CHA_UM]);
}
if (flags0 & FL_TRANSP) {
setKeyboardTranspose (inst->midicfg, PGM->transpose[TR_TRANSP]);
}
if (flags0 & FL_TRCH_A) {
setKeyboardTransposeA (inst->midicfg, PGM->transpose[TR_CHNL_A]);
}
if (flags0 & FL_TRCH_B) {
setKeyboardTransposeB (inst->midicfg, PGM->transpose[TR_CHNL_B]);
}
if (flags0 & FL_TRCH_C) {
setKeyboardTransposeC (inst->midicfg, PGM->transpose[TR_CHNL_C]);
}
}
}
}