static void process_audio(MF2UI* ui, const size_t n_elem, float const * const left, float const * const right) {
pthread_mutex_lock(&ui->fft_lock);
fftx_run(ui->fa, n_elem, left);
bool display = !fftx_run(ui->fb, n_elem, right);
if (display) {
assert (fftx_bins(ui->fa) == ui->fft_bins);
float peak = 0;
const float db_thresh = ui->db_thresh;
for (uint32_t i = 1; i < ui->fft_bins-1; i++) {
if (ui->fa->power[i] < db_thresh || ui->fb->power[i] < db_thresh) {
ui->phase[i] = 0;
ui->level[i] = -100;
continue;
}
const float phase0 = ui->fa->phase[i];
const float phase1 = ui->fb->phase[i];
float phase = phase1 - phase0;
ui->phase[i] = phase;
ui->level[i] = MAX(ui->fa->power[i], ui->fb->power[i]);
if (ui->level[i] > peak) {
peak = ui->level[i];
}
}
ui->peak += .04 * (peak - ui->peak) + 1e-15;
if (isnan (ui->peak)) { ui->peak = 0; }
if (ui->peak > 1000) { ui->peak = 1000; }
if (robtk_cbtn_get_active(ui->btn_norm)) {
robtk_dial_set_value(ui->gain, - fftx_power_to_dB(ui->peak));
}
queue_draw(ui->m0);
}
pthread_mutex_unlock(&ui->fft_lock);
}
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 RobWidget * toplevel(SFSUI* ui, void * const top)
{
/* main widget: layout */
ui->rw = rob_vbox_new(FALSE, 0);
robwidget_make_toplevel(ui->rw, top);
ui->hbox1 = rob_hbox_new(FALSE, 0);
ui->hbox2 = rob_hbox_new(FALSE, 0);
ui->sep2 = robtk_sep_new(true);
rob_vbox_child_pack(ui->rw, ui->hbox1, FALSE, FALSE);
rob_vbox_child_pack(ui->rw, robtk_sep_widget(ui->sep2), FALSE, FALSE);
rob_vbox_child_pack(ui->rw, ui->hbox2, FALSE, FALSE);
ui->font[0] = pango_font_description_from_string("Mono 7");
ui->font[1] = pango_font_description_from_string("Mono 8");
get_color_from_theme(0, ui->c_fg);
get_color_from_theme(1, ui->c_bg);
create_surfaces(ui);
/* main drawing area */
ui->m0 = robwidget_new(ui);
ROBWIDGET_SETNAME(ui->m0, "stsco (m0)");
robwidget_set_expose_event(ui->m0, expose_event);
robwidget_set_size_request(ui->m0, size_request);
rob_hbox_child_pack(ui->hbox1, ui->m0, FALSE, FALSE);
/* screen persistence dial */
ui->lbl_screen = robtk_lbl_new("Persistence:");
ui->screen = robtk_dial_new_with_size(0.0, 100.0, 1,
22, 22, 10.5, 10.5, 10);
robtk_dial_set_alignment(ui->screen, 1.0, 0.5);
robtk_dial_set_value(ui->screen, 50);
robtk_dial_set_default(ui->screen, 50.0);
robtk_dial_set_callback(ui->screen, cb_set_persistence, ui);
/* fft bins */
ui->lbl_fft = robtk_lbl_new("FFT Samples:");
ui->sel_fft = robtk_select_new();
robtk_select_add_item(ui->sel_fft, 128, "256");
robtk_select_add_item(ui->sel_fft, 256, "512");
robtk_select_add_item(ui->sel_fft, 512, "1024");
robtk_select_add_item(ui->sel_fft, 1024, "2048");
robtk_select_add_item(ui->sel_fft, 2048, "4096");
robtk_select_add_item(ui->sel_fft, 4096, "8192");
robtk_select_add_item(ui->sel_fft, 6144, "12288");
robtk_select_add_item(ui->sel_fft, 8192, "16384");
robtk_select_set_default_item(ui->sel_fft, 3);
robtk_select_set_value(ui->sel_fft, 512);
robtk_select_set_callback(ui->sel_fft, cb_set_fft, ui);
/* N/octave */
ui->btn_oct = robtk_cbtn_new("N/Octave Bands", GBT_LED_LEFT, false);
robtk_cbtn_set_active(ui->btn_oct, false);
robtk_cbtn_set_callback(ui->btn_oct, cb_set_oct, ui);
robtk_cbtn_set_color_on(ui->btn_oct, .2, .8, .1);
robtk_cbtn_set_color_off(ui->btn_oct, .1, .3, .1);
/* explicit alignment */
ui->sep0 = robtk_sep_new(true);
robtk_sep_set_linewidth(ui->sep0, 0);
rob_hbox_child_pack(ui->hbox2, robtk_lbl_widget(ui->lbl_screen), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox2, robtk_dial_widget(ui->screen), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox2, robtk_lbl_widget(ui->lbl_fft), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox2, robtk_select_widget(ui->sel_fft), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox2, robtk_sep_widget(ui->sep0), TRUE, FALSE);
rob_hbox_child_pack(ui->hbox2, robtk_cbtn_widget(ui->btn_oct), FALSE, FALSE);
return ui->rw;
}
static RobWidget * toplevel(MF2UI* ui, void * const top)
{
/* main widget: layout */
ui->rw = rob_vbox_new(FALSE, 0);
robwidget_make_toplevel(ui->rw, top);
ui->hbox1 = rob_hbox_new(FALSE, 0);
ui->hbox2 = rob_hbox_new(FALSE, 0);
ui->hbox3 = rob_hbox_new(FALSE, 0);
ui->sep2 = robtk_sep_new(true);
rob_vbox_child_pack(ui->rw, ui->hbox1, TRUE, TRUE);
rob_vbox_child_pack(ui->rw, ui->hbox2, FALSE, TRUE);
rob_vbox_child_pack(ui->rw, robtk_sep_widget(ui->sep2), FALSE, TRUE);
rob_vbox_child_pack(ui->rw, ui->hbox3, FALSE, TRUE);
ui->font[0] = pango_font_description_from_string("Mono 9px");
ui->font[1] = pango_font_description_from_string("Mono 10px");
get_color_from_theme(0, ui->c_fg);
get_color_from_theme(1, ui->c_bg);
m1_create_surfaces(ui);
m2_create_surfaces(ui);
/* main drawing area */
ui->m0 = robwidget_new(ui);
ROBWIDGET_SETNAME(ui->m0, "mphase (m0)");
robwidget_set_expose_event(ui->m0, expose_event);
robwidget_set_size_request(ui->m0, size_request);
robwidget_set_size_allocate(ui->m0, m0_size_allocate);
rob_hbox_child_pack(ui->hbox1, ui->m0, TRUE, TRUE);
/* phase correlation */
ui->m1 = robwidget_new(ui);
ROBWIDGET_SETNAME(ui->m1, "phase (m1)");
robwidget_set_expose_event(ui->m1, pc_expose_event);
robwidget_set_size_request(ui->m1, pc_size_request);
robwidget_set_size_allocate(ui->m1, pc_size_allocate);
rob_hbox_child_pack(ui->hbox1, ui->m1, FALSE, TRUE);
/* gain box */
ui->sep3 = robtk_sep_new(true);
ui->sep4 = robtk_sep_new(true);
robtk_sep_set_linewidth(ui->sep3, 0);
robtk_sep_set_linewidth(ui->sep4, 0);
/* gain annotation */
ui->m2 = robwidget_new(ui);
ROBWIDGET_SETNAME(ui->m2, "gain (m2)");
robwidget_set_expose_event(ui->m2, ga_expose_event);
robwidget_set_size_request(ui->m2, ga_size_request);
rob_hbox_child_pack(ui->hbox2, robtk_sep_widget(ui->sep3), TRUE, TRUE);
rob_hbox_child_pack(ui->hbox2, ui->m2, FALSE, FALSE);
rob_hbox_child_pack(ui->hbox2, robtk_sep_widget(ui->sep4), TRUE, TRUE);
robwidget_set_mousedown(ui->m2, m2_mousedown);
robwidget_set_mouseup(ui->m2, m2_mouseup);
robwidget_set_mousemove(ui->m2, m2_mousemove);
robwidget_set_enter_notify(ui->m2, m2_enter);
robwidget_set_leave_notify(ui->m2, m2_leave);
/* gain dial */
ui->gain = robtk_dial_new_with_size(-40.0, 40.0, .01,
60, 40, 30.5, 16.5, 10);
robtk_dial_set_alignment(ui->gain, 1.0, 0.5);
robtk_dial_set_value(ui->gain, 0);
robtk_dial_set_default(ui->gain, 20.0);
robtk_dial_set_callback(ui->gain, cb_set_gain, ui);
robtk_dial_set_surface(ui->gain,ui->sf_dial);
robtk_dial_annotation_callback(ui->gain, dial_annotation_db, ui);
rob_hbox_child_pack(ui->hbox2, robtk_dial_widget(ui->gain), FALSE, FALSE);
/* fft bins */
ui->lbl_fft = robtk_lbl_new("FFT:");
ui->sel_fft = robtk_select_new();
robtk_select_add_item(ui->sel_fft, 64, "128");
robtk_select_add_item(ui->sel_fft, 128, "256");
robtk_select_add_item(ui->sel_fft, 256, "512");
robtk_select_add_item(ui->sel_fft, 512, "1024");
robtk_select_add_item(ui->sel_fft, 1024, "2048");
robtk_select_add_item(ui->sel_fft, 2048, "4096");
robtk_select_add_item(ui->sel_fft, 4096, "8192");
robtk_select_add_item(ui->sel_fft, 6144, "12288");
robtk_select_add_item(ui->sel_fft, 8192, "16384");
robtk_select_set_default_item(ui->sel_fft, 3);
robtk_select_set_value(ui->sel_fft, 512);
robtk_select_set_callback(ui->sel_fft, cb_set_fft, ui);
/* N/octave */
ui->btn_oct = robtk_cbtn_new("N/Octave Bands", GBT_LED_LEFT, false);
robtk_cbtn_set_active(ui->btn_oct, false);
robtk_cbtn_set_callback(ui->btn_oct, cb_set_oct, ui);
robtk_cbtn_set_color_on(ui->btn_oct, .2, .8, .1);
robtk_cbtn_set_color_off(ui->btn_oct, .1, .3, .1);
/* Normalize */
ui->btn_norm = robtk_cbtn_new("Normalize", GBT_LED_LEFT, false);
robtk_cbtn_set_active(ui->btn_norm, false);
robtk_cbtn_set_callback(ui->btn_norm, cb_set_norm, ui);
robtk_cbtn_set_color_on(ui->btn_norm, .2, .8, .1);
robtk_cbtn_set_color_off(ui->btn_norm, .1, .3, .1);
/* screen persistence dial */
ui->lbl_screen = robtk_lbl_new("Persistence:");
ui->screen = robtk_dial_new_with_size(0.0, 100.0, 1,
22, 22, 10.5, 10.5, 10);
robtk_dial_set_alignment(ui->screen, 1.0, 0.5);
robtk_dial_set_value(ui->screen, 33);
robtk_dial_set_default(ui->screen, 33.0);
robtk_dial_set_callback(ui->screen, cb_set_persistence, ui);
/* explicit alignment */
ui->sep0 = robtk_sep_new(true);
robtk_sep_set_linewidth(ui->sep0, 0);
ui->sep1 = robtk_sep_new(true);
robtk_sep_set_linewidth(ui->sep1, 0);
rob_hbox_child_pack(ui->hbox3, robtk_lbl_widget(ui->lbl_screen), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox3, robtk_dial_widget(ui->screen), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox3, robtk_lbl_widget(ui->lbl_fft), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox3, robtk_select_widget(ui->sel_fft), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox3, robtk_sep_widget(ui->sep0), TRUE, FALSE);
rob_hbox_child_pack(ui->hbox3, robtk_cbtn_widget(ui->btn_oct), FALSE, FALSE);
rob_hbox_child_pack(ui->hbox3, robtk_sep_widget(ui->sep1), TRUE, FALSE);
rob_hbox_child_pack(ui->hbox3, robtk_cbtn_widget(ui->btn_norm), FALSE, FALSE);
update_annotations(ui);
return ui->rw;
}
