--- /dev/null
+/*
+ Copyright (C) 2000-2007 Paul Davis
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef __ardour_gtk_log_meter_h__
+#define __ardour_gtk_log_meter_h__
+
+#include "ardour/dB.h"
+
+#if 1
+static inline float
+_log_meter (float power, double lower_db, double upper_db, double non_linearity)
+{
+ return (power < lower_db ? 0.0 : pow((power-lower_db)/(upper_db-lower_db), non_linearity));
+}
+
+static inline float
+alt_log_meter (float power)
+{
+ return _log_meter (power, -192.0, 0.0, 8.0);
+}
+#endif
+
+/* prototypes - avoid compiler warning */
+static inline float log_meter (float db);
+static inline float meter_deflect_ppm (float);
+static inline float meter_deflect_din (float);
+static inline float meter_deflect_nordic (float);
+static inline float meter_deflect_vu (float);
+static inline float meter_deflect_k (float, float);
+
+
+
+static inline float
+log_meter (float db)
+{
+ float def = 0.0f; /* Meter deflection %age */
+
+ if (db < -70.0f) {
+ def = 0.0f;
+ } else if (db < -60.0f) {
+ def = (db + 70.0f) * 0.25f;
+ } else if (db < -50.0f) {
+ def = (db + 60.0f) * 0.5f + 2.5f;
+ } else if (db < -40.0f) {
+ def = (db + 50.0f) * 0.75f + 7.5f;
+ } else if (db < -30.0f) {
+ def = (db + 40.0f) * 1.5f + 15.0f;
+ } else if (db < -20.0f) {
+ def = (db + 30.0f) * 2.0f + 30.0f;
+ } else if (db < 6.0f) {
+ def = (db + 20.0f) * 2.5f + 50.0f;
+ } else {
+ def = 115.0f;
+ }
+
+ /* 115 is the deflection %age that would be
+ when db=6.0. this is an arbitrary
+ endpoint for our scaling.
+ */
+
+ return def/115.0f;
+}
+
+static inline float
+log_meter0dB (float db)
+{
+ float def = 0.0f; /* Meter deflection %age */
+
+ if (db < -70.0f) {
+ def = 0.0f;
+ } else if (db < -60.0f) {
+ def = (db + 70.0f) * 0.25f;
+ } else if (db < -50.0f) {
+ def = (db + 60.0f) * 0.5f + 2.5f;
+ } else if (db < -40.0f) {
+ def = (db + 50.0f) * 0.75f + 7.5f;
+ } else if (db < -30.0f) {
+ def = (db + 40.0f) * 1.5f + 15.0f;
+ } else if (db < -20.0f) {
+ def = (db + 30.0f) * 2.0f + 30.0f;
+ } else if (db < 0.0f) {
+ def = (db + 20.0f) * 2.5f + 50.0f;
+ } else {
+ def = 100.0f;
+ }
+ return def/100.0f;
+}
+
+static inline float
+meter_deflect_ppm (float db)
+{
+ if (db < -30) {
+ // 2.258 == ((-30 + 32.0)/ 28.0) / 10^(-30 / 20);
+ return (dB_to_coefficient(db) * 2.258769757f);
+ } else {
+ const float rv = (db + 32.0f) / 28.0f;
+ if (rv < 1.0) {
+ return rv;
+ } else {
+ return 1.0;
+ }
+ }
+}
+
+static inline float
+meter_deflect_din (float db)
+{
+ float rv = dB_to_coefficient(db);
+ rv = sqrtf (sqrtf (2.3676f * rv)) - 0.1803f;
+ if (rv >= 1.0) {
+ return 1.0;
+ } else {
+ return (rv > 0 ? rv : 0.0);
+ }
+}
+
+static inline float
+meter_deflect_nordic (float db)
+{
+ if (db < -60) {
+ return 0.0;
+ } else {
+ const float rv = (db + 60.0f) / 54.0f;
+ if (rv < 1.0) {
+ return rv;
+ } else {
+ return 1.0;
+ }
+ }
+}
+
+static inline float
+meter_deflect_vu (float db)
+{
+ const float rv = 6.77165f * dB_to_coefficient(db);
+ if (rv > 1.0) return 1.0;
+ return rv;
+}
+
+static inline float
+meter_deflect_k (float db, float krange)
+{
+ db+=krange;
+ if (db < -40.0f) {
+ return (dB_to_coefficient(db) * 500.0f / (krange + 45.0f));
+ } else {
+ const float rv = (db + 45.0f) / (krange + 45.0f);
+ if (rv < 1.0) {
+ return rv;
+ } else {
+ return 1.0;
+ }
+ }
+}
+
+#endif /* __ardour_gtk_log_meter_h__ */
--- /dev/null
+/*
+ Copyright (C) 2002 Paul Davis
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <limits.h>
+
+#include "ardour/meter.h"
+#include "ardour/logmeter.h"
+#include "ardour/rc_configuration.h"
+
+#include <gtkmm2ext/utils.h>
+#include <gtkmm2ext/gui_thread.h>
+
+#include "pbd/fastlog.h"
+#include "pbd/i18n.h"
+
+#include "canvas/box.h"
+#include "canvas/meter.h"
+
+#include "level_meter.h"
+#include "push2.h"
+
+using namespace ARDOUR;
+using namespace PBD;
+using namespace Gtkmm2ext;
+using namespace std;
+using namespace ArdourSurface;
+using namespace ArdourCanvas;
+
+LevelMeter::LevelMeter (Push2& p, Item* parent, int len, Meter::Orientation o)
+ : Container (parent)
+ , p2 (p)
+ , _meter (0)
+ , _meter_orientation(o)
+ , regular_meter_width (6)
+ , meter_length (len)
+ , thin_meter_width(2)
+ , max_peak (minus_infinity())
+ , meter_type (MeterPeak)
+ , visible_meter_type (MeterType(0))
+ , midi_count (0)
+ , meter_count (0)
+ , max_visible_meters (0)
+{
+ Config->ParameterChanged.connect (_parameter_connection, invalidator(*this), boost::bind (&LevelMeter::parameter_changed, this, _1), &p2);
+
+ if (_meter_orientation == Meter::Vertical) {
+ meter_packer = new HBox (this);
+ } else {
+ meter_packer = new VBox (this);
+ }
+
+ meter_packer->set_collapse_on_hide (true);
+}
+
+LevelMeter::~LevelMeter ()
+{
+ _configuration_connection.disconnect();
+ _meter_type_connection.disconnect();
+ _parameter_connection.disconnect();
+ for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
+ delete (*i).meter;
+ }
+ meters.clear();
+}
+
+void
+LevelMeter::set_meter (PeakMeter* meter)
+{
+ _configuration_connection.disconnect();
+ _meter_type_connection.disconnect();
+
+ _meter = meter;
+
+ if (_meter) {
+ _meter->ConfigurationChanged.connect (_configuration_connection, invalidator(*this), boost::bind (&LevelMeter::configuration_changed, this, _1, _2), &p2);
+ _meter->TypeChanged.connect (_meter_type_connection, invalidator (*this), boost::bind (&LevelMeter::meter_type_changed, this, _1), &p2);
+ }
+
+ setup_meters (meter_length, regular_meter_width, thin_meter_width);
+}
+
+static float meter_lineup_cfg(MeterLineUp lul, float offset) {
+ switch (lul) {
+ case MeteringLineUp24:
+ return offset + 6.0;
+ case MeteringLineUp20:
+ return offset + 2.0;
+ case MeteringLineUp18:
+ return offset;
+ case MeteringLineUp15:
+ return offset - 3.0;
+ default:
+ break;
+ }
+ return offset;
+}
+
+static float meter_lineup(float offset) {
+ return meter_lineup_cfg (MeteringLineUp24, offset);
+ //return meter_lineup_cfg (UIConfiguration::instance().get_meter_line_up_level(), offset);
+}
+
+static float vu_standard() {
+ return 0;
+#if 0
+ // note - default meter config is +2dB (france)
+ switch (UIConfiguration::instance().get_meter_vu_standard()) {
+ default:
+ case MeteringVUfrench: // 0VU = -2dBu
+ return 0;
+ case MeteringVUamerican: // 0VU = 0dBu
+ return -2;
+ case MeteringVUstandard: // 0VU = +4dBu
+ return -6;
+ case MeteringVUeight: // 0VU = +8dBu
+ return -10;
+ }
+#endif
+}
+
+float
+LevelMeter::update_meters ()
+{
+ vector<MeterInfo>::iterator i;
+ uint32_t n;
+
+ if (!_meter) {
+ return 0.0f;
+ }
+
+ uint32_t nmidi = _meter->input_streams().n_midi();
+
+ for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
+ if ((*i).packed) {
+ const float mpeak = _meter->meter_level(n, MeterMaxPeak);
+ if (mpeak > (*i).max_peak) {
+ (*i).max_peak = mpeak;
+ //(*i).meter->set_highlight(mpeak >= UIConfiguration::instance().get_meter_peak());
+ (*i).meter->set_highlight (mpeak >= 2.0);
+ }
+ if (mpeak > max_peak) {
+ max_peak = mpeak;
+ }
+
+ if (n < nmidi) {
+ (*i).meter->set (_meter->meter_level (n, MeterPeak));
+ } else {
+ const float peak = _meter->meter_level (n, meter_type);
+ if (meter_type == MeterPeak) {
+ (*i).meter->set (log_meter (peak));
+ } else if (meter_type == MeterPeak0dB) {
+ (*i).meter->set (log_meter0dB (peak));
+ } else if (meter_type == MeterIEC1NOR) {
+ (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
+ } else if (meter_type == MeterIEC1DIN) {
+ // (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(UIConfiguration::instance().get_meter_line_up_din(), 3.0)));
+ } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
+ (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
+ } else if (meter_type == MeterVU) {
+ (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
+ } else if (meter_type == MeterK12) {
+ (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
+ } else if (meter_type == MeterK14) {
+ (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
+ } else if (meter_type == MeterK20) {
+ (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
+ } else { // RMS
+ (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
+ }
+ }
+ }
+ }
+ return max_peak;
+}
+
+void
+LevelMeter::parameter_changed (string p)
+{
+ if (p == "meter-hold") {
+ vector<MeterInfo>::iterator i;
+ uint32_t n;
+
+ for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
+ //(*i).meter->set_hold_count ((uint32_t) floor(UIConfiguration::instance().get_meter_hold()));
+ (*i).meter->set_hold_count (20);
+ }
+ }
+ else if (p == "meter-line-up-level") {
+ setup_meters (meter_length, regular_meter_width, thin_meter_width);
+ }
+ else if (p == "meter-style-led") {
+ setup_meters (meter_length, regular_meter_width, thin_meter_width);
+ }
+ else if (p == "meter-peak") {
+ vector<MeterInfo>::iterator i;
+ uint32_t n;
+
+ for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
+ (*i).max_peak = minus_infinity();
+ }
+ }
+}
+
+void
+LevelMeter::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
+{
+ setup_meters (meter_length, regular_meter_width, thin_meter_width);
+}
+
+void
+LevelMeter::meter_type_changed (MeterType t)
+{
+ meter_type = t;
+ setup_meters (meter_length, regular_meter_width, thin_meter_width);
+}
+
+void
+LevelMeter::hide_all_meters ()
+{
+ for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
+ if ((*i).packed) {
+ meter_packer->remove ((*i).meter);
+ (*i).packed = false;
+ }
+ }
+ meter_count = 0;
+}
+
+void
+LevelMeter::set_max_audio_meter_count (uint32_t cnt)
+{
+ if (cnt == max_visible_meters) {
+ return;
+ }
+ max_visible_meters = cnt;
+ setup_meters (meter_length, regular_meter_width, thin_meter_width);
+}
+
+void
+LevelMeter::setup_meters (int len, int initial_width, int thin_width)
+{
+
+ if (!_meter) {
+ hide_all_meters ();
+ return; /* do it later or never */
+ }
+
+ uint32_t nmidi = _meter->input_streams().n_midi();
+ uint32_t nmeters = _meter->input_streams().n_total();
+ regular_meter_width = initial_width;
+ thin_meter_width = thin_width;
+ meter_length = len;
+
+ guint16 width;
+
+ if (nmeters == 0) {
+ hide_all_meters ();
+ return;
+ }
+
+ if (nmeters <= 2) {
+ width = regular_meter_width;
+ } else {
+ width = thin_meter_width;
+ }
+
+ if ( meters.size() > 0
+ && nmidi == midi_count
+ && nmeters == meter_count
+ && meters[0].width == width
+ && meters[0].length == len
+ && meter_type == visible_meter_type) {
+ return;
+ }
+
+#if 0
+ printf("Meter redraw: %s %s %s %s %s %s\n",
+ (meters.size() > 0) ? "yes" : "no",
+ (meters.size() > 0 && meters[0].width == width) ? "yes" : "no",
+ (meters.size() > 0 && meters[0].length == len) ? "yes" : "no",
+ (nmeters == meter_count) ? "yes" : "no",
+ (meter_type == visible_meter_type) ? "yes" : "no",
+ !color_changed ? "yes" : "no"
+ );
+#endif
+
+ hide_all_meters ();
+ while (meters.size() < nmeters) {
+ meters.push_back (MeterInfo());
+ }
+
+ //cerr << "LevelMeter::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
+
+ for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
+#if 0
+ uint32_t c[10];
+ uint32_t b[4];
+ float stp[4];
+ int styleflags = UIConfiguration::instance().get_meter_style_led() ? 3 : 1;
+ b[0] = UIConfiguration::instance().color ("meter background bottom");
+ b[1] = UIConfiguration::instance().color ("meter background top");
+ b[2] = 0x991122ff; // red highlight gradient Bot
+ b[3] = 0x551111ff; // red highlight gradient Top
+ if ((uint32_t) n < nmidi) {
+ c[0] = UIConfiguration::instance().color ("midi meter color0");
+ c[1] = UIConfiguration::instance().color ("midi meter color1");
+ c[2] = UIConfiguration::instance().color ("midi meter color2");
+ c[3] = UIConfiguration::instance().color ("midi meter color3");
+ c[4] = UIConfiguration::instance().color ("midi meter color4");
+ c[5] = UIConfiguration::instance().color ("midi meter color5");
+ c[6] = UIConfiguration::instance().color ("midi meter color6");
+ c[7] = UIConfiguration::instance().color ("midi meter color7");
+ c[8] = UIConfiguration::instance().color ("midi meter color8");
+ c[9] = UIConfiguration::instance().color ("midi meter color9");
+ stp[0] = 115.0 * 32.0 / 128.0;
+ stp[1] = 115.0 * 64.0 / 128.0;
+ stp[2] = 115.0 * 100.0 / 128.0;
+ stp[3] = 115.0 * 112.0 / 128.0;
+ } else {
+ c[0] = UIConfiguration::instance().color ("meter color0");
+ c[1] = UIConfiguration::instance().color ("meter color1");
+ c[2] = UIConfiguration::instance().color ("meter color2");
+ c[3] = UIConfiguration::instance().color ("meter color3");
+ c[4] = UIConfiguration::instance().color ("meter color4");
+ c[5] = UIConfiguration::instance().color ("meter color5");
+ c[6] = UIConfiguration::instance().color ("meter color6");
+ c[7] = UIConfiguration::instance().color ("meter color7");
+ c[8] = UIConfiguration::instance().color ("meter color8");
+ c[9] = UIConfiguration::instance().color ("meter color9");
+
+ switch (meter_type) {
+ case MeterK20:
+ stp[0] = 115.0 * meter_deflect_k(-40, 20); //-20
+ stp[1] = 115.0 * meter_deflect_k(-20, 20); // 0
+ stp[2] = 115.0 * meter_deflect_k(-18, 20); // +2
+ stp[3] = 115.0 * meter_deflect_k(-16, 20); // +4
+ c[0] = c[1] = 0x008800ff;
+ c[2] = c[3] = 0x00ff00ff;
+ c[4] = c[5] = 0xffff00ff;
+ c[6] = c[7] = 0xffff00ff;
+ c[8] = c[9] = 0xff0000ff;
+ break;
+ case MeterK14:
+ stp[0] = 115.0 * meter_deflect_k(-34, 14); //-20
+ stp[1] = 115.0 * meter_deflect_k(-14, 14); // 0
+ stp[2] = 115.0 * meter_deflect_k(-12, 14); // +2
+ stp[3] = 115.0 * meter_deflect_k(-10, 14); // +4
+ c[0] = c[1] = 0x008800ff;
+ c[2] = c[3] = 0x00ff00ff;
+ c[4] = c[5] = 0xffff00ff;
+ c[6] = c[7] = 0xffff00ff;
+ c[8] = c[9] = 0xff0000ff;
+ break;
+ case MeterK12:
+ stp[0] = 115.0 * meter_deflect_k(-32, 12); //-20
+ stp[1] = 115.0 * meter_deflect_k(-12, 12); // 0
+ stp[2] = 115.0 * meter_deflect_k(-10, 12); // +2
+ stp[3] = 115.0 * meter_deflect_k( -8, 12); // +4
+ c[0] = c[1] = 0x008800ff;
+ c[2] = c[3] = 0x00ff00ff;
+ c[4] = c[5] = 0xffff00ff;
+ c[6] = c[7] = 0xffff00ff;
+ c[8] = c[9] = 0xff0000ff;
+ break;
+ case MeterIEC2BBC:
+ c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
+ UIConfiguration::instance().color ("meter color BBC");
+ stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
+ break;
+ case MeterIEC2EBU:
+ stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
+ stp[1] = 115.0 * meter_deflect_ppm(-18);
+ stp[2] = 115.0 * meter_deflect_ppm( -9);
+ stp[3] = 115.0 * meter_deflect_ppm( 0); // ignored
+ c[3] = c[2] = c[1];
+ c[6] = c[7] = c[8] = c[9];
+ break;
+ case MeterIEC1NOR:
+ stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
+ stp[1] = 115.0 * meter_deflect_nordic(-18);
+ stp[2] = 115.0 * meter_deflect_nordic(-12);
+ stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
+ c[0] = c[1] = c[2]; // bright-green
+ c[6] = c[7] = c[8] = c[9];
+ break;
+ case MeterIEC1DIN:
+ stp[0] = 115.0 * meter_deflect_din(-29); // ignored
+ stp[1] = 115.0 * meter_deflect_din(-18);
+ stp[2] = 115.0 * meter_deflect_din(-15); // ignored
+ stp[3] = 115.0 * meter_deflect_din( -9);
+ c[0] = c[2] = c[3] = c[1];
+ c[4] = c[6];
+ c[5] = c[7];
+ break;
+ case MeterVU:
+ stp[0] = 115.0 * meter_deflect_vu(-26); // -6
+ stp[1] = 115.0 * meter_deflect_vu(-23); // -3
+ stp[2] = 115.0 * meter_deflect_vu(-20); // 0
+ stp[3] = 115.0 * meter_deflect_vu(-18); // +2
+ c[0] = c[2] = c[3] = c[4] = c[5] = c[1];
+ c[7] = c[8] = c[9] = c[6];
+ break;
+ case MeterPeak0dB:
+ stp[1] = 89.125; // 115.0 * log_meter0dB(-9);
+ stp[2] = 106.375; // 115.0 * log_meter0dB(-3);
+ stp[3] = 115.0; // 115.0 * log_meter0dB(0);
+ switch (UIConfiguration::instance().get_meter_line_up_level()) {
+ case MeteringLineUp24:
+ stp[0] = 115.0 * log_meter0dB(-24);
+ break;
+ case MeteringLineUp20:
+ stp[0] = 115.0 * log_meter0dB(-20);
+ break;
+ default:
+ case MeteringLineUp18:
+ stp[0] = 115.0 * log_meter0dB(-18);
+ break;
+ case MeteringLineUp15:
+ stp[0] = 115.0 * log_meter0dB(-15);
+ }
+ break;
+ default: // PEAK, RMS
+ stp[1] = 77.5; // 115 * log_meter(-9)
+ stp[2] = 92.5; // 115 * log_meter(-3)
+ stp[3] = 100.0; // 115 * log_meter(0)
+ switch (UIConfiguration::instance().get_meter_line_up_level()) {
+ case MeteringLineUp24:
+ stp[0] = 42.0;
+ break;
+ case MeteringLineUp20:
+ stp[0] = 50.0;
+ break;
+ default:
+ case MeteringLineUp18:
+ stp[0] = 55.0;
+ break;
+ case MeteringLineUp15:
+ stp[0] = 62.5;
+ break;
+ }
+ }
+ }
+
+#endif
+ if (meters[n].width != width || meters[n].length != len || meter_type != visible_meter_type || nmidi != midi_count) {
+ bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
+ meters[n].packed = false;
+ delete meters[n].meter;
+ meters[n].meter = new Meter (this->canvas(), 32, width, _meter_orientation, len);
+ meters[n].meter->set_highlight(hl);
+ meters[n].width = width;
+ meters[n].length = len;
+ }
+
+ meter_packer->pack_start (meters[n].meter);
+ meters[n].packed = true;
+ if (max_visible_meters == 0 || (uint32_t) n < max_visible_meters + nmidi) {
+ meters[n].meter->show ();
+ } else {
+ meters[n].meter->hide ();
+ }
+ }
+
+ visible_meter_type = meter_type;
+ midi_count = nmidi;
+ meter_count = nmeters;
+}
+
+void
+LevelMeter::set_type(MeterType t)
+{
+ meter_type = t;
+ _meter->set_type(t);
+}
+
+void LevelMeter::clear_meters (bool reset_highlight)
+{
+ for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
+ (*i).meter->clear();
+ (*i).max_peak = minus_infinity();
+ if (reset_highlight)
+ (*i).meter->set_highlight(false);
+ }
+ max_peak = minus_infinity();
+}
+
+void LevelMeter::hide_meters ()
+{
+ hide_all_meters();
+}
projects / ardour.git / commitdiff