/** ==== 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;
}
/** ==== 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
const char* missing = lv2_features_query(
features,
LV2_LOG__log, &self->logger.log, false,
LV2_URID__map, &self->map, true,
NULL);
lv2_log_logger_set_map(&self->logger, self->map);
if (missing) {
lv2_log_error(&self->logger, "Missing feature <%s>\n", missing);
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);
return (LV2_Handle)self;
}
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 */
SiSco* self = (SiSco*)calloc(1, sizeof(SiSco));
if(!self) {
return NULL;
}
int i;
for (i=0; features[i]; ++i) {
if (!strcmp(features[i]->URI, LV2_URID__map)) {
self->map = (LV2_URID_Map*)features[i]->data;
}
}
if (!self->map) {
fprintf(stderr, "SiSco.lv2 error: Host does not support urid:map\n");
free(self);
return NULL;
}
if (!strncmp(descriptor->URI, SCO_URI "#Mono", 31 + 5)) {
self->n_channels = 1;
} else if (!strncmp(descriptor->URI, SCO_URI "#Stereo", 31 + 7)) {
self->n_channels = 2;
} else if (!strncmp(descriptor->URI, SCO_URI "#3chan", 31 + 6)) {
self->n_channels = 3;
} else if (!strncmp(descriptor->URI, SCO_URI "#4chan", 31 + 6)) {
self->n_channels = 4;
} else {
free(self);
return NULL;
}
assert(self->n_channels <= MAX_CHANNELS);
self->ui_active = false;
self->send_settings_to_ui = false;
self->printed_capacity_warning = false;
self->rate = rate;
/* default settings */
self->ui_grid = 10;
self->triggerstate.mode = 0;
self->triggerstate.type = 0;
self->triggerstate.xpos = 50;
self->triggerstate.hold = 0.5;
self->triggerstate.level = 0.0;
self->cursorstate.xpos[0] = 640 * .25;
self->cursorstate.xpos[1] = 640 * .75;
self->cursorstate.chn[0] = 1;
self->cursorstate.chn[1] = 1;
for (uint32_t c = 0; c < self->n_channels; ++c) {
self->channelstate[c].gain = 1.0;
self->channelstate[c].xoff = 0.0;
self->channelstate[c].yoff = 0.0;
self->channelstate[c].opts = 3.0;
}
lv2_atom_forge_init(&self->forge, self->map);
map_sco_uris(self->map, &self->uris);
return (LV2_Handle)self;
}