/** ==== Instantiate Method ==== */
static LV2_Handle
instantiate(const LV2_Descriptor* descriptor,
double rate,
const char* bundle_path,
const LV2_Feature* const* features)
{
(void)descriptor; // Unused variable
(void)bundle_path; // Unused variable
// Allocate and initialise instance structure.
EgScope* self = (EgScope*)calloc(1, sizeof(EgScope));
if (!self) {
return NULL;
}
// Get host features
for (int i = 0; features[i]; ++i) {
if (!strcmp(features[i]->URI, LV2_URID__map)) {
self->map = (LV2_URID_Map*)features[i]->data;
} else if (!strcmp(features[i]->URI, LV2_LOG__log)) {
self->log = (LV2_Log_Log*)features[i]->data;
}
}
if (!self->map) {
fprintf(stderr, "EgScope.lv2 error: Host does not support urid:map\n");
free(self);
return NULL;
}
// Decide which variant to use depending on the plugin URI
if (!strcmp(descriptor->URI, SCO_URI "#Stereo")) {
self->n_channels = 2;
} else if (!strcmp(descriptor->URI, SCO_URI "#Mono")) {
self->n_channels = 1;
} else {
free(self);
return NULL;
}
// Initialise local variables
self->ui_active = false;
self->send_settings_to_ui = false;
self->rate = rate;
// Set default UI settings
self->ui_spp = 50;
self->ui_amp = 1.0;
// Map URIs and initialise forge/logger
map_sco_uris(self->map, &self->uris);
lv2_atom_forge_init(&self->forge, self->map);
lv2_log_logger_init(&self->logger, self->map, self->log);
return (LV2_Handle)self;
}
static LV2_Handle
instantiate (const LV2_Descriptor* descriptor,
double rate,
const char* bundle_path,
const LV2_Feature* const* features)
{
MidiMap* self = (MidiMap*)calloc (1, sizeof (MidiMap));
int i;
for (i=0; features[i]; ++i) {
if (!strcmp (features[i]->URI, LV2_URID__map)) {
self->map = (LV2_URID_Map*)features[i]->data;
} else if (!strcmp (features[i]->URI, LV2_WORKER__schedule)) {
self->schedule = (LV2_Worker_Schedule*)features[i]->data;
} else if (!strcmp (features[i]->URI, LV2_LOG__log)) {
self->log = (LV2_Log_Log*)features[i]->data;
}
}
lv2_log_logger_init (&self->logger, self->map, self->log);
if (!self->map) {
lv2_log_error (&self->logger, "MidiMap.lv2 error: Host does not support urid:map\n");
free (self);
return NULL;
}
if (!self->schedule) {
lv2_log_error (&self->logger, "MidiMap.lv2 error: Host does not support worker:schedule\n");
free (self);
return NULL;
}
self->sample_rate = rate;
lv2_atom_forge_init (&self->forge, self->map);
map_mem_uris (self->map, &self->uris);
return (LV2_Handle)self;
}
