, _signal_input_fft(0)
, _signal_output_fft(0)
, _plugin_insert(pluginInsert)
+ , _pointer_in_area_xpos(-1)
{
_signal_analysis_running = false;
_samplerate = ARDOUR_UI::instance()->the_session()->sample_rate();
_analysis_area->signal_size_allocate().connect( sigc::mem_fun (*this, &PluginEqGui::resize_analysis_area));
_analysis_area->signal_motion_notify_event().connect( sigc::mem_fun (*this, &PluginEqGui::analysis_area_mouseover));
_analysis_area->signal_leave_notify_event().connect( sigc::mem_fun (*this, &PluginEqGui::analysis_area_mouseexit));
- _analysis_area->signal_button_press_event().connect( sigc::mem_fun (*this, &PluginEqGui::analysis_area_mousedown));
// dB selection
dBScaleModel = Gtk::ListStore::create(dBColumns);
dBSelectBin->add( *manage(dBComboLabel));
dBSelectBin->add( *manage(dBScaleCombo));
+ // Phase checkbutton
+ _signal_button = new Gtk::CheckButton (_("Plot live signal"));
+ _signal_button->set_active(true);
+
// Phase checkbutton
_phase_button = new Gtk::CheckButton (_("Show phase"));
_phase_button->set_active(true);
_pointer_info->set_name("PluginAnalysisInfoLabel");
// populate table
- attach( *manage(_analysis_area), 1, 4, 1, 2);
- attach( *manage(dBSelectBin), 1, 2, 2, 3, Gtk::SHRINK, Gtk::SHRINK);
- attach( *manage(_phase_button), 2, 3, 2, 3, Gtk::SHRINK, Gtk::SHRINK);
- attach( *manage(_pointer_info), 3, 4, 2, 3, Gtk::FILL, Gtk::SHRINK);
+ attach (*manage(_analysis_area), 0, 4, 0, 1);
+ attach (*manage(dBSelectBin), 0, 1, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
+ attach (*manage(_signal_button), 1, 2, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
+ attach (*manage(_phase_button), 2, 3, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
+ attach (*manage(_pointer_info), 3, 4, 1, 2, Gtk::FILL, Gtk::SHRINK);
}
PluginEqGui::~PluginEqGui()
// all gui objects are *manage'd by the inherited Table object
}
+static inline float
+power_to_dB(float a)
+{
+ return 10.0 * log10f(a);
+}
+
void
PluginEqGui::start_listening ()
{
_plugin->activate();
set_buffer_size(4096, 16384);
+ _plugin->set_block_size (_buffer_size);
// Connect the realtime signal collection callback
_plugin_insert->AnalysisDataGathered.connect (analysis_connection, invalidator (*this), boost::bind (&PluginEqGui::signal_collect_callback, this, _1, _2), gui_context());
}
// map output buffers after input buffers (no inplace for VST)
out_map.offset_to (DataType::AUDIO, inputs);
- _plugin->set_block_size (_buffer_size);
_plugin->connect_and_run(_bufferset, 0, _buffer_size, 1.0, in_map, out_map, _buffer_size, 0);
samplecnt_t f = _plugin->signal_latency ();
// Adding user_latency() could be interesting
}
void
-PluginEqGui::update_pointer_info(float x, float y)
+PluginEqGui::update_pointer_info(float x)
{
- const int freq = std::max(1, (int) roundf((powf(10, x / _analysis_width * _log_max) - 1) * _samplerate / 2.0 / _log_coeff));
- const float dB = _max_dB - y / _analysis_height * ( _max_dB - _min_dB );
+ /* find the bin corresponding to x (see plot_impulse_amplitude) */
+ int i = roundf ((powf (10, _log_max * x / _analysis_width) - 1.0) * _impulse_fft->bins() / _log_coeff);
+ float dB = power_to_dB (_impulse_fft->power_at_bin (i));
+ /* calc freq corresponding to bin */
+ const int freq = std::max (1, (int) roundf((float)i / (float)_impulse_fft->bins() * _samplerate / 2.f));
+
+ _pointer_in_area_freq = round (_analysis_width * log10f(1.0 + (float)i / (float)_impulse_fft->bins() * _log_coeff) / _log_max);
+
std::stringstream ss;
ss << std::fixed;
if (freq >= 10000) {
} else {
ss << std::setprecision (0) << freq << "Hz";
}
- ss << " " << std::setw(5) << std::setprecision (1) << std::showpos << dB;
+ ss << " " << std::setw(6) << std::setprecision (1) << std::showpos << dB;
ss << std::setw(0) << "dB";
+
+ if (_phase_button->get_active()) {
+ float phase = 180. * _impulse_fft->phase_at_bin (i) / M_PI;
+ ss << " " << std::setw(6) << std::setprecision (1) << std::showpos << phase;
+ ss << std::setw(0) << "\u00B0";
+ }
_pointer_info->set_text(ss.str());
}
bool
PluginEqGui::analysis_area_mouseover(GdkEventMotion *event)
{
- update_pointer_info(event->x, event->y);
+ update_pointer_info(event->x);
+ _pointer_in_area_xpos = event->x;
+ _analysis_area->queue_draw();
return true;
}
PluginEqGui::analysis_area_mouseexit(GdkEventCrossing *)
{
_pointer_info->set_text("");
+ _pointer_in_area_xpos = -1;
+ _analysis_area->queue_draw();
return true;
}
-bool
-PluginEqGui::analysis_area_mousedown(GdkEventButton *event)
-{
- update_pointer_info(event->x, event->y);
- return true;
-}
-
-
bool
PluginEqGui::expose_analysis_area(GdkEventExpose *)
{
cairo_set_source_surface(cr, _analysis_scale_surface, 0.0, 0.0);
cairo_paint(cr);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+
if (_phase_button->get_active()) {
plot_impulse_phase(_analysis_area, cr);
}
+
plot_impulse_amplitude(_analysis_area, cr);
- // TODO: make this optional
- plot_signal_amplitude_difference(_analysis_area, cr);
+ if (_pointer_in_area_xpos >= 0) {
+ update_pointer_info (_pointer_in_area_xpos);
+ }
+
+ if (_signal_button->get_active()) {
+ plot_signal_amplitude_difference(_analysis_area, cr);
+ }
+
+ if (_pointer_in_area_xpos >= 0 && _pointer_in_area_freq > 0) {
+ const double dashed[] = {0.0, 2.0};
+ cairo_set_dash (cr, dashed, 2, 0);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_set_line_width (cr, 1.0);
+ cairo_move_to (cr, _pointer_in_area_freq - .5, -.5);
+ cairo_line_to (cr, _pointer_in_area_freq - .5, _analysis_height - .5);
+ cairo_stroke(cr);
+ }
cairo_destroy(cr);
}
}
-inline float
-power_to_dB(float a)
-{
- return 10.0 * log10f(a);
-}
-
void
PluginEqGui::plot_impulse_amplitude(Gtk::Widget *w, cairo_t *cr)
{
projects / ardour.git / blobdiff