gtk2_ardour/level_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <limits.h>
  21
  22 #include "ardour/meter.h"
  23
  24 #include <gtkmm2ext/utils.h>
  25 #include <gtkmm2ext/fastmeter.h>
  26 #include <gtkmm2ext/barcontroller.h>
  27 #include "midi++/manager.h"
  28 #include "pbd/fastlog.h"
  29
  30 #include "ardour_ui.h"
  31 #include "global_signals.h"
  32 #include "level_meter.h"
  33 #include "utils.h"
  34 #include "logmeter.h"
  35 #include "gui_thread.h"
  36 #include "keyboard.h"
  37 #include "public_editor.h"
  38
  39 #include "i18n.h"
  40
  41 using namespace ARDOUR;
  42 using namespace PBD;
  43 using namespace Gtkmm2ext;
  44 using namespace Gtk;
  45 using namespace std;
  46
  47 LevelMeter::LevelMeter (Session* s)
  48         : _meter (0)
  49         , meter_length (0)
  50         , thin_meter_width(2)
  51 {
  52         set_session (s);
  53         set_spacing (1);
  54         Config->ParameterChanged.connect (_parameter_connection, invalidator (*this), boost::bind (&LevelMeter::parameter_changed, this, _1), gui_context());
  55         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &LevelMeter::on_theme_changed));
  56         ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeter::color_handler));
  57         max_peak = minus_infinity();
  58         meter_type = MeterPeak;
  59 }
  60
  61 void
  62 LevelMeter::on_theme_changed()
  63 {
  64         style_changed = true;
  65 }
  66
  67 LevelMeter::~LevelMeter ()
  68 {
  69         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  70                 delete (*i).meter;
  71         }
  72 }
  73
  74 void
  75 LevelMeter::set_meter (PeakMeter* meter)
  76 {
  77         _configuration_connection.disconnect();
  78         _meter_type_connection.disconnect();
  79
  80         _meter = meter;
  81
  82         if (_meter) {
  83                 _meter->ConfigurationChanged.connect (_configuration_connection, invalidator (*this), boost::bind (&LevelMeter::configuration_changed, this, _1, _2), gui_context());
  84                 _meter->TypeChanged.connect (_meter_type_connection, invalidator (*this), boost::bind (&LevelMeter::meter_type_changed, this, _1), gui_context());
  85         }
  86 }
  87
  88 float
  89 LevelMeter::update_meters ()
  90 {
  91         vector<MeterInfo>::iterator i;
  92         uint32_t n;
  93
  94         if (!_meter) {
  95                 return 0.0f;
  96         }
  97
  98         uint32_t nmidi = _meter->input_streams().n_midi();
  99
 100         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 101                 if ((*i).packed) {
 102                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 103                         if (mpeak > (*i).max_peak) {
 104                                 (*i).max_peak = mpeak;
 105                                 (*i).meter->set_highlight(mpeak > Config->get_meter_peak());
 106                         }
 107                         if (mpeak > max_peak) {
 108                                 max_peak = mpeak;
 109                         }
 110
 111                         if (n < nmidi) {
 112                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 113                         } else {
 114                                 const float peak = _meter->meter_level (n, meter_type);
 115                                 if (meter_type == MeterPeak) {
 116                                         (*i).meter->set (log_meter (peak));
 117                                 } else if (meter_type == MeterIEC1NOR) {
 118                                         (*i).meter->set (meter_deflect_nordic (peak));
 119                                 } else if (meter_type == MeterIEC1DIN) {
 120                                         (*i).meter->set (meter_deflect_din (peak));
 121                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 122                                         (*i).meter->set (meter_deflect_ppm (peak));
 123                                 } else if (meter_type == MeterVU) {
 124                                         (*i).meter->set (meter_deflect_vu (peak));
 125                                 } else if (meter_type == MeterK14) {
 126                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 127                                 } else if (meter_type == MeterK20) {
 128                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 129                                 } else {
 130                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 131                                 }
 132                         }
 133                 }
 134         }
 135         return max_peak;
 136 }
 137
 138 void
 139 LevelMeter::parameter_changed (string p)
 140 {
 141         ENSURE_GUI_THREAD (*this, &LevelMeter::parameter_changed, p)
 142
 143         if (p == "meter-hold") {
 144                 vector<MeterInfo>::iterator i;
 145                 uint32_t n;
 146
 147                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 148                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 149                 }
 150         }
 151         else if (p == "meter-line-up-level") {
 152                 color_changed = true;
 153                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 154         }
 155         else if (p == "meter-peak") {
 156                 vector<MeterInfo>::iterator i;
 157                 uint32_t n;
 158
 159                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 160                         (*i).max_peak = minus_infinity();
 161                 }
 162         }
 163 }
 164
 165 void
 166 LevelMeter::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 167 {
 168         color_changed = true;
 169         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 170 }
 171
 172 void
 173 LevelMeter::meter_type_changed (MeterType t)
 174 {
 175         meter_type = t;
 176         color_changed = true;
 177         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 178         MeterTypeChanged(t);
 179 }
 180
 181 void
 182 LevelMeter::hide_all_meters ()
 183 {
 184         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 185                 if ((*i).packed) {
 186                         remove (*((*i).meter));
 187                         (*i).packed = false;
 188                 }
 189         }
 190 }
 191
 192 void
 193 LevelMeter::setup_meters (int len, int initial_width, int thin_width)
 194 {
 195         hide_all_meters ();
 196
 197         if (!_meter) {
 198                 return; /* do it later or never */
 199         }
 200
 201         int32_t nmidi = _meter->input_streams().n_midi();
 202         uint32_t nmeters = _meter->input_streams().n_total();
 203         regular_meter_width = initial_width;
 204         thin_meter_width = thin_width;
 205         meter_length = len;
 206
 207         guint16 width;
 208
 209         if (nmeters == 0) {
 210                 return;
 211         }
 212
 213         if (nmeters <= 2) {
 214                 width = regular_meter_width;
 215         } else {
 216                 width = thin_meter_width;
 217         }
 218
 219         while (meters.size() < nmeters) {
 220                 meters.push_back (MeterInfo());
 221         }
 222
 223         //cerr << "LevelMeter::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 224
 225         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 226                 uint32_t c[10];
 227                 float stp[4];
 228                 if (n < nmidi) {
 229                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 230                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 231                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 232                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 233                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 234                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 235                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 236                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 237                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 238                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 239                         stp[0] = 115.0 *  32.0 / 128.0;
 240                         stp[1] = 115.0 *  64.0 / 128.0;
 241                         stp[2] = 115.0 * 100.0 / 128.0;
 242                         stp[3] = 115.0 * 112.0 / 128.0;
 243                 } else {
 244                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 245                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 246                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 247                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 248                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 249                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 250                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 251                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 252                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 253                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 254
 255                         switch (meter_type) {
 256                                 case MeterK20:
 257                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 258                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 259                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 260                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 261                                         c[0] = c[1] = 0x008800ff;
 262                                         c[2] = c[3] = 0x00ff00ff;
 263                                         c[4] = c[5] = 0xffff00ff;
 264                                         c[6] = c[7] = 0xffff00ff;
 265                                         c[8] = c[9] = 0xff0000ff;
 266                                         break;
 267                                 case MeterK14:
 268                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 269                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 270                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 271                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 272                                         c[0] = c[1] = 0x008800ff;
 273                                         c[2] = c[3] = 0x00ff00ff;
 274                                         c[4] = c[5] = 0xffff00ff;
 275                                         c[6] = c[7] = 0xffff00ff;
 276                                         c[8] = c[9] = 0xff0000ff;
 277                                         break;
 278                                 case MeterIEC2EBU:
 279                                 case MeterIEC2BBC:
 280                                         stp[0] = 115.0 * meter_deflect_ppm(-18);
 281                                         stp[1] = 115.0 * meter_deflect_ppm(-14);
 282                                         stp[2] = 115.0 * meter_deflect_ppm(-10);
 283                                         stp[3] = 115.0 * meter_deflect_ppm( -8);
 284                                         break;
 285                                 case MeterIEC1NOR:
 286                                         stp[0] = 115.0 * meter_deflect_nordic(-18);
 287                                         stp[1] = 115.0 * meter_deflect_nordic(-15);
 288                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 289                                         stp[3] = 115.0 * meter_deflect_nordic( -9);
 290                                         break;
 291                                 case MeterIEC1DIN:
 292                                         stp[0] = 115.0 * meter_deflect_din(-29);
 293                                         stp[1] = 115.0 * meter_deflect_din(-18);
 294                                         stp[2] = 115.0 * meter_deflect_din(-15);
 295                                         stp[3] = 115.0 * meter_deflect_din( -9);
 296                                         break;
 297                                 case MeterVU:
 298                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 299                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 300                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 301                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 302                                         break;
 303                                 default: // PEAK, RMS
 304                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 305                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 306                                         stp[3] = 100.0; // 115 * log_meter(0)
 307                                 switch (Config->get_meter_line_up_level()) {
 308                                         case MeteringLineUp24:
 309                                                 stp[0] = 42.0;
 310                                                 break;
 311                                         case MeteringLineUp20:
 312                                                 stp[0] = 50.0;
 313                                                 break;
 314                                         default:
 315                                         case MeteringLineUp18:
 316                                                 stp[0] = 55.0;
 317                                                 break;
 318                                         case MeteringLineUp15:
 319                                                 stp[0] = 62.5;
 320                                                 break;
 321                                 }
 322                         }
 323                 }
 324                 if (meters[n].width != width || meters[n].length != len || color_changed) {
 325                         delete meters[n].meter;
 326                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical, len,
 327                                                          c[0], c[1], c[2], c[3], c[4],
 328                                                          c[5], c[6], c[7], c[8], c[9],
 329                                                          ARDOUR_UI::config()->get_canvasvar_MeterBackgroundBot(),
 330                                                          ARDOUR_UI::config()->get_canvasvar_MeterBackgroundTop(),
 331                                                          0x991122ff, 0x551111ff,
 332                                                          stp[0], stp[1], stp[2], stp[3]
 333                                 );
 334                         meters[n].width = width;
 335                         meters[n].length = len;
 336                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 337                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeter::meter_button_press));
 338                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeter::meter_button_release));
 339                 }
 340
 341                 pack_end (*meters[n].meter, false, false);
 342                 meters[n].meter->show_all ();
 343                 meters[n].packed = true;
 344         }
 345         show();
 346         color_changed = false;
 347 }
 348
 349 void
 350 LevelMeter::set_type(MeterType t)
 351 {
 352         meter_type = t;
 353         _meter->set_type(t);
 354 }
 355
 356 bool
 357 LevelMeter::meter_button_press (GdkEventButton* ev)
 358 {
 359         return ButtonPress (ev); /* EMIT SIGNAL */
 360 }
 361
 362 bool
 363 LevelMeter::meter_button_release (GdkEventButton* ev)
 364 {
 365         if (ev->button == 1) {
 366                 clear_meters (false);
 367         }
 368
 369         return true;
 370 }
 371
 372
 373 void LevelMeter::clear_meters (bool reset_highlight)
 374 {
 375         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 376                 (*i).meter->clear();
 377                 (*i).max_peak = minus_infinity();
 378                 if (reset_highlight)
 379                         (*i).meter->set_highlight(false);
 380         }
 381         max_peak = minus_infinity();
 382 }
 383
 384 void LevelMeter::hide_meters ()
 385 {
 386         hide_all_meters();
 387 }
 388
 389 void
 390 LevelMeter::color_handler ()
 391 {
 392         color_changed = true;
 393 }
 394