ardour/ardour
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Add phase labels -180..180 deg for analysis display

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This commit is contained in:
Robin Gareus 2019-02-28 04:15:37 +01:00
parent f14c6ea734
commit 8c68d35819
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 12 additions and 7 deletions
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19
gtk2_ardour/plugin_eq_gui.cc
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@ -590,7 +590,7 @@ PluginEqGui::draw_scales_phase (Gtk::Widget*, cairo_t *cr)
char buf[256];
cairo_text_extents_t t_ext;
for (uint32_t i = 0; i < 3; i++) {
for (uint32_t i = 0; i < 5; i++) {
y = _analysis_height / 2.0 - (float)i * (_analysis_height / 8.0) * PHASE_PROPORTION;
@ -604,14 +604,17 @@ PluginEqGui::draw_scales_phase (Gtk::Widget*, cairo_t *cr)
cairo_move_to (cr, _analysis_width - t_ext.width - t_ext.x_bearing - 2.0, y - extents.descent);
cairo_show_text (cr, buf);
if (i == 0)
if (i == 0) {
continue;
}
y = roundf (y) - .5;
cairo_set_source_rgba (cr, .8, .9, 0.2, 0.6 / (float)i);
cairo_set_source_rgba (cr, .8, .9, .2, 0.4);
cairo_move_to (cr, 0.0, y);
cairo_line_to (cr, _analysis_width, y);
cairo_set_line_width (cr, 1);
cairo_stroke (cr);
y = _analysis_height / 2.0 + (float)i * (_analysis_height / 8.0) * PHASE_PROPORTION;
@ -622,12 +625,13 @@ PluginEqGui::draw_scales_phase (Gtk::Widget*, cairo_t *cr)
cairo_move_to (cr, _analysis_width - t_ext.width - t_ext.x_bearing - 2.0, y - extents.descent);
cairo_show_text (cr, buf);
y = roundf (y) - .5;
// line
cairo_set_source_rgba (cr, .8, .9, 0.2, 0.6 / (float)i);
cairo_set_source_rgba (cr, .8, .9, .2, 0.4);
cairo_move_to (cr, 0.0, y);
cairo_line_to (cr, _analysis_width, y);
cairo_set_line_width (cr, 0.25 + 1.0 / (float)(i + 1));
cairo_set_line_width (cr, 1);
cairo_stroke (cr);
}
}
@ -643,14 +647,15 @@ PluginEqGui::plot_impulse_phase (Gtk::Widget *w, cairo_t *cr)
// float width = w->get_width();
float height = w->get_height ();
float analysis_height_2 = _analysis_height / 2.f;
cairo_set_source_rgba (cr, 0.95, 0.3, 0.2, 1.0);
for (uint32_t i = 0; i < _impulse_fft->bins() - 1; ++i) {
// x coordinate of bin i
x = log10f (1.0 + (float)i / (float)_impulse_fft->bins() * _log_coeff) / _log_max;
x *= _analysis_width;
y = analysis_height_2 - (_impulse_fft->phase_at_bin (i) / M_PI) * analysis_height_2 * PHASE_PROPORTION;
y = _analysis_height/2.0 - (_impulse_fft->phase_at_bin(i)/M_PI)*(_analysis_height/2.0)*PHASE_PROPORTION;
if (i == 0) {
cairo_move_to (cr, x, y);
avgY = 0;