static bool cb_set_fft (RobWidget* handle, void *data) {
SFSUI* ui = (SFSUI*) (data);
const float fft_size = 2 * robtk_select_get_value(ui->sel_fft);
uint32_t fft_bins = floorf(fft_size / 2.0);
if (ui->fft_bins == fft_bins) return TRUE;
reinitialize_fft(ui, fft_bins);
ui->write(ui->controller, SS_FFT, sizeof(float), 0, (const void*) &fft_size);
return TRUE;
}
static LV2UI_Handle
instantiate(
void* const ui_toplevel,
const LV2UI_Descriptor* descriptor,
const char* plugin_uri,
const char* bundle_path,
LV2UI_Write_Function write_function,
LV2UI_Controller controller,
RobWidget** widget,
const LV2_Feature* const* features)
{
SFSUI* ui = (SFSUI*) calloc(1,sizeof(SFSUI));
*widget = NULL;
ui->map = NULL;
if (!strcmp(plugin_uri, MTR_URI "stereoscope")) { ; }
else if (!strcmp(plugin_uri, MTR_URI "stereoscope_gtk")) { ; }
else {
free(ui);
return NULL;
}
for (int i = 0; features[i]; ++i) {
if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
ui->map = (LV2_URID_Map*)features[i]->data;
}
}
if (!ui->map) {
fprintf(stderr, "meters.lv2 UI: Host does not support urid:map\n");
free(ui);
return NULL;
}
map_xfer_uris(ui->map, &ui->uris);
lv2_atom_forge_init(&ui->forge, ui->map);
ui->write = write_function;
ui->controller = controller;
ui->rate = 48000;
ui->disable_signals = false;
ui->update_grid = false;
ui->clear_persistence = false;
ui->fft_bins = 512;
ui->freq_band = NULL;
ui->freq_bins = 0;
ui->width = SS_SIZE + 2 * SS_BORDER;
ui->height = SS_SIZE + 2 * SS_BORDER;
pthread_mutex_init(&ui->fft_lock, NULL);
*widget = toplevel(ui, ui_toplevel);
reinitialize_fft(ui, ui->fft_bins);
ui_enable(ui);
return ui;
}
static void
port_event(LV2UI_Handle handle,
uint32_t port_index,
uint32_t buffer_size,
uint32_t format,
const void* buffer)
{
SFSUI* ui = (SFSUI*)handle;
LV2_Atom* atom = (LV2_Atom*)buffer;
if (format == ui->uris.atom_eventTransfer
&& (atom->type == ui->uris.atom_Blank|| atom->type == ui->uris.atom_Object))
{
/* cast the buffer to Atom Object */
LV2_Atom_Object* obj = (LV2_Atom_Object*)atom;
LV2_Atom *a0 = NULL;
LV2_Atom *a1 = NULL;
if (obj->body.otype == ui->uris.rawstereo
&& 2 == lv2_atom_object_get(obj, ui->uris.audioleft, &a0, ui->uris.audioright, &a1, NULL)
&& a0 && a1
&& a0->type == ui->uris.atom_Vector
&& a1->type == ui->uris.atom_Vector
)
{
LV2_Atom_Vector* left = (LV2_Atom_Vector*)LV2_ATOM_BODY(a0);
LV2_Atom_Vector* right = (LV2_Atom_Vector*)LV2_ATOM_BODY(a1);
if (left->atom.type == ui->uris.atom_Float && right->atom.type == ui->uris.atom_Float) {
const size_t n_elem = (a0->size - sizeof(LV2_Atom_Vector_Body)) / left->atom.size;
const float *l = (float*) LV2_ATOM_BODY(&left->atom);
const float *r = (float*) LV2_ATOM_BODY(&right->atom);
process_audio(ui, n_elem, l, r);
}
}
else if (
/* handle 'state/settings' data object */
obj->body.otype == ui->uris.ui_state
/* retrieve properties from object and
* check that there the [here] three required properties are set.. */
&& 1 == lv2_atom_object_get(obj,
ui->uris.samplerate, &a0, NULL)
/* ..and non-null.. */
&& a0
/* ..and match the expected type */
&& a0->type == ui->uris.atom_Float
)
{
ui->rate = ((LV2_Atom_Float*)a0)->body;
reinitialize_fft(ui, ui->fft_bins);
}
}
else if (format != 0) return;
if (port_index == SS_FFT) {
float val = *(float *)buffer;
uint32_t fft_bins = floorf(val / 2.0);
if (ui->fft_bins != fft_bins) {
reinitialize_fft(ui, fft_bins);
robtk_select_set_value(ui->sel_fft, ui->fft_bins);
}
}
else if (port_index == SS_BAND) {
float val = *(float *)buffer;
ui->disable_signals = true;
robtk_cbtn_set_active(ui->btn_oct, val != 0);
ui->disable_signals = false;
}
else if (port_index == SS_SCREEN) {
ui->disable_signals = true;
robtk_dial_set_value(ui->screen, *(float *)buffer);
ui->disable_signals = false;
}
}
static LV2UI_Handle
instantiate(
void* const ui_toplevel,
const LV2UI_Descriptor* descriptor,
const char* plugin_uri,
const char* bundle_path,
LV2UI_Write_Function write_function,
LV2UI_Controller controller,
RobWidget** widget,
const LV2_Feature* const* features)
{
MF2UI* ui = (MF2UI*) calloc(1,sizeof(MF2UI));
*widget = NULL;
ui->map = NULL;
if (!strcmp(plugin_uri, MTR_URI "phasewheel")) { ; }
else {
free(ui);
return NULL;
}
for (int i = 0; features[i]; ++i) {
if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
ui->map = (LV2_URID_Map*)features[i]->data;
}
}
if (!ui->map) {
fprintf(stderr, "meters.lv2 UI: Host does not support urid:map\n");
free(ui);
return NULL;
}
ui->nfo = robtk_info(ui_toplevel);
map_xfer_uris(ui->map, &ui->uris);
lv2_atom_forge_init(&ui->forge, ui->map);
ui->write = write_function;
ui->controller = controller;
ui->rate = 48000;
ui->db_cutoff = -60;
ui->db_thresh = 0.000001; // (-60dB)^2 // XXX
ui->drag_cutoff_x = -1;
ui->prelight_cutoff = false;
ui->cor = 0.5;
ui->disable_signals = false;
ui->update_annotations = false;
ui->update_grid = false;
ui->fft_bins = 512;
ui->freq_band = NULL;
ui->freq_bins = 0;
ui->pgain = -100;
ui->peak = 0;
ui->scale = 0.0;
ui->pscale = 1.0;
ui->width = 2 * (PH_RAD + XOFF);
ui->height = 2 * (PH_RAD + YOFF);
pthread_mutex_init(&ui->fft_lock, NULL);
*widget = toplevel(ui, ui_toplevel);
reinitialize_fft(ui, ui->fft_bins);
ui_enable(ui);
return ui;
}
