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/barcontroller.h>
  26 #include "pbd/fastlog.h"
  27
  28 #include "ardour_ui.h"
  29 #include "global_signals.h"
  30 #include "level_meter.h"
  31 #include "utils.h"
  32 #include "logmeter.h"
  33 #include "gui_thread.h"
  34 #include "keyboard.h"
  35 #include "public_editor.h"
  36
  37 #include "i18n.h"
  38
  39 using namespace ARDOUR;
  40 using namespace PBD;
  41 using namespace Gtkmm2ext;
  42 using namespace Gtk;
  43 using namespace std;
  44
  45 LevelMeterBase::LevelMeterBase (Session* s, PBD::EventLoop::InvalidationRecord* ir, FastMeter::Orientation o)
  46         : parent_invalidator(ir)
  47         , _meter (0)
  48         , _meter_orientation(o)
  49         , regular_meter_width (6)
  50         , meter_length (0)
  51         , thin_meter_width(2)
  52 {
  53         set_session (s);
  54         Config->ParameterChanged.connect (_parameter_connection, parent_invalidator, boost::bind (&LevelMeterBase::parameter_changed, this, _1), gui_context());
  55         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &LevelMeterBase::on_theme_changed));
  56         ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeterBase::color_handler));
  57         max_peak = minus_infinity();
  58         meter_type = MeterPeak;
  59 }
  60
  61 void
  62 LevelMeterBase::on_theme_changed()
  63 {
  64         style_changed = true;
  65 }
  66
  67 LevelMeterBase::~LevelMeterBase ()
  68 {
  69         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  70                 delete (*i).meter;
  71         }
  72 }
  73
  74 void
  75 LevelMeterBase::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, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  84                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  85         }
  86 }
  87
  88 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  89         switch (lul) {
  90                 case MeteringLineUp24:
  91                         return offset + 6.0;
  92                 case MeteringLineUp20:
  93                         return offset + 2.0;
  94                 case MeteringLineUp18:
  95                         return offset;
  96                 case MeteringLineUp15:
  97                         return offset - 3.0;
  98                 default:
  99                         break;
 100         }
 101         return offset;
 102 }
 103
 104 static float meter_lineup(float offset) {
 105         return meter_lineup_cfg(Config->get_meter_line_up_level(), offset);
 106 }
 107
 108 static float vu_standard() {
 109         // note - default meter config is +2dB (france)
 110         switch (Config->get_meter_vu_standard()) {
 111                 default:
 112                 case MeteringVUfrench:   // 0VU = -2dBu
 113                         return 0;
 114                 case MeteringVUamerican: // 0VU =  0dBu
 115                         return -2;
 116                 case MeteringVUstandard: // 0VU = +4dBu
 117                         return -6;
 118                 case MeteringVUeight:    // 0VU = +8dBu
 119                         return -10;
 120         }
 121 }
 122
 123 float
 124 LevelMeterBase::update_meters ()
 125 {
 126         vector<MeterInfo>::iterator i;
 127         uint32_t n;
 128
 129         if (!_meter) {
 130                 return 0.0f;
 131         }
 132
 133         uint32_t nmidi = _meter->input_streams().n_midi();
 134
 135         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 136                 if ((*i).packed) {
 137                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 138                         if (mpeak > (*i).max_peak) {
 139                                 (*i).max_peak = mpeak;
 140                                 (*i).meter->set_highlight(mpeak >= Config->get_meter_peak());
 141                         }
 142                         if (mpeak > max_peak) {
 143                                 max_peak = mpeak;
 144                         }
 145
 146                         if (n < nmidi) {
 147                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 148                         } else {
 149                                 const float peak = _meter->meter_level (n, meter_type);
 150                                 if (meter_type == MeterPeak) {
 151                                         (*i).meter->set (log_meter (peak));
 152                                 } else if (meter_type == MeterIEC1NOR) {
 153                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 154                                 } else if (meter_type == MeterIEC1DIN) {
 155                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(Config->get_meter_line_up_din(), 3.0)));
 156                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 157                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 158                                 } else if (meter_type == MeterVU) {
 159                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 160                                 } else if (meter_type == MeterK12) {
 161                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 162                                 } else if (meter_type == MeterK14) {
 163                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 164                                 } else if (meter_type == MeterK20) {
 165                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 166                                 } else { // RMS
 167                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 168                                 }
 169                         }
 170                 }
 171         }
 172         return max_peak;
 173 }
 174
 175 void
 176 LevelMeterBase::parameter_changed (string p)
 177 {
 178         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 179
 180         if (p == "meter-hold") {
 181                 vector<MeterInfo>::iterator i;
 182                 uint32_t n;
 183
 184                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 185                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 186                 }
 187         }
 188         else if (p == "meter-line-up-level") {
 189                 color_changed = true;
 190                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 191         }
 192         else if (p == "meter-style-led") {
 193                 color_changed = true;
 194                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 195         }
 196         else if (p == "meter-peak") {
 197                 vector<MeterInfo>::iterator i;
 198                 uint32_t n;
 199
 200                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 201                         (*i).max_peak = minus_infinity();
 202                 }
 203         }
 204 }
 205
 206 void
 207 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 208 {
 209         color_changed = true;
 210         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 211 }
 212
 213 void
 214 LevelMeterBase::meter_type_changed (MeterType t)
 215 {
 216         meter_type = t;
 217         color_changed = true;
 218         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 219         MeterTypeChanged(t);
 220 }
 221
 222 void
 223 LevelMeterBase::hide_all_meters ()
 224 {
 225         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 226                 if ((*i).packed) {
 227                         mtr_remove (*((*i).meter));
 228                         (*i).packed = false;
 229                 }
 230         }
 231 }
 232
 233 void
 234 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 235 {
 236         hide_all_meters ();
 237
 238         if (!_meter) {
 239                 return; /* do it later or never */
 240         }
 241
 242         int32_t nmidi = _meter->input_streams().n_midi();
 243         uint32_t nmeters = _meter->input_streams().n_total();
 244         regular_meter_width = initial_width;
 245         thin_meter_width = thin_width;
 246         meter_length = len;
 247
 248         guint16 width;
 249
 250         if (nmeters == 0) {
 251                 return;
 252         }
 253
 254         if (nmeters <= 2) {
 255                 width = regular_meter_width;
 256         } else {
 257                 width = thin_meter_width;
 258         }
 259
 260         while (meters.size() < nmeters) {
 261                 meters.push_back (MeterInfo());
 262         }
 263
 264         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 265
 266         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 267                 uint32_t c[10];
 268                 uint32_t b[4];
 269                 float stp[4];
 270                 int styleflags = Config->get_meter_style_led() ? 3 : 1;
 271                 b[0] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundBot();
 272                 b[1] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundTop();
 273                 b[2] = 0x991122ff; // red highlight gradient Bot
 274                 b[3] = 0x551111ff; // red highlight gradient Top
 275                 if (n < nmidi) {
 276                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 277                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 278                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 279                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 280                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 281                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 282                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 283                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 284                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 285                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 286                         stp[0] = 115.0 *  32.0 / 128.0;
 287                         stp[1] = 115.0 *  64.0 / 128.0;
 288                         stp[2] = 115.0 * 100.0 / 128.0;
 289                         stp[3] = 115.0 * 112.0 / 128.0;
 290                 } else {
 291                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 292                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 293                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 294                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 295                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 296                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 297                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 298                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 299                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 300                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 301
 302                         switch (meter_type) {
 303                                 case MeterK20:
 304                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 305                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 306                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 307                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 308                                         c[0] = c[1] = 0x008800ff;
 309                                         c[2] = c[3] = 0x00ff00ff;
 310                                         c[4] = c[5] = 0xffff00ff;
 311                                         c[6] = c[7] = 0xffff00ff;
 312                                         c[8] = c[9] = 0xff0000ff;
 313                                         break;
 314                                 case MeterK14:
 315                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 316                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 317                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 318                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 319                                         c[0] = c[1] = 0x008800ff;
 320                                         c[2] = c[3] = 0x00ff00ff;
 321                                         c[4] = c[5] = 0xffff00ff;
 322                                         c[6] = c[7] = 0xffff00ff;
 323                                         c[8] = c[9] = 0xff0000ff;
 324                                         break;
 325                                 case MeterK12:
 326                                         stp[0] = 115.0 * meter_deflect_k(-32, 12);  //-20
 327                                         stp[1] = 115.0 * meter_deflect_k(-12, 12);  //  0
 328                                         stp[2] = 115.0 * meter_deflect_k(-10, 12);  // +2
 329                                         stp[3] = 115.0 * meter_deflect_k( -8, 12);  // +4
 330                                         c[0] = c[1] = 0x008800ff;
 331                                         c[2] = c[3] = 0x00ff00ff;
 332                                         c[4] = c[5] = 0xffff00ff;
 333                                         c[6] = c[7] = 0xffff00ff;
 334                                         c[8] = c[9] = 0xff0000ff;
 335                                         break;
 336                                 case MeterIEC2BBC:
 337                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 338                                                 ARDOUR_UI::config()->color_by_name ("meter color BBC");
 339                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 340                                         break;
 341                                 case MeterIEC2EBU:
 342                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 343                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 344                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 345                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 346                                         c[3] = c[2] = c[1];
 347                                         c[6] = c[7] = c[8] = c[9];
 348                                         break;
 349                                 case MeterIEC1NOR:
 350                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 351                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 352                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 353                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 354                                         //c[2] = c[3] = c[1]; // dark-green
 355                                         c[0] = c[1] = c[2]; // bright-green
 356                                         c[6] = c[7] = c[8] = c[9];
 357                                         break;
 358                                 case MeterIEC1DIN:
 359                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 360                                         stp[1] = 115.0 * meter_deflect_din(-18);
 361                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 362                                         stp[3] = 115.0 * meter_deflect_din( -9);
 363                                         c[0] = c[1] = c[2] = c[3] = 0x00aa00ff;
 364                                         c[4] = c[6];
 365                                         c[5] = c[7];
 366                                         break;
 367                                 case MeterVU:
 368                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 369                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 370                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 371                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 372                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = 0x00aa00ff;
 373                                         c[6] = c[7] = c[8] = c[9] = 0xff8800ff;
 374                                         break;
 375                                 default: // PEAK, RMS
 376                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 377                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 378                                         stp[3] = 100.0; // 115 * log_meter(0)
 379                                 switch (Config->get_meter_line_up_level()) {
 380                                         case MeteringLineUp24:
 381                                                 stp[0] = 42.0;
 382                                                 break;
 383                                         case MeteringLineUp20:
 384                                                 stp[0] = 50.0;
 385                                                 break;
 386                                         default:
 387                                         case MeteringLineUp18:
 388                                                 stp[0] = 55.0;
 389                                                 break;
 390                                         case MeteringLineUp15:
 391                                                 stp[0] = 62.5;
 392                                                 break;
 393                                 }
 394                         }
 395                 }
 396                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 397                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 398                         meters[n].packed = false;
 399                         delete meters[n].meter;
 400                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 401                                         c[0], c[1], c[2], c[3], c[4],
 402                                         c[5], c[6], c[7], c[8], c[9],
 403                                         b[0], b[1], b[2], b[3],
 404                                         stp[0], stp[1], stp[2], stp[3],
 405                                         styleflags
 406                                         );
 407                         meters[n].meter->set_highlight(hl);
 408                         meters[n].width = width;
 409                         meters[n].length = len;
 410                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 411                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press));
 412                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release));
 413                 }
 414
 415                 //pack_end (*meters[n].meter, false, false);
 416                 mtr_pack (*meters[n].meter);
 417                 meters[n].meter->show_all ();
 418                 meters[n].packed = true;
 419         }
 420         //show();
 421         color_changed = false;
 422         visible_meter_type = meter_type;
 423 }
 424
 425 void
 426 LevelMeterBase::set_type(MeterType t)
 427 {
 428         meter_type = t;
 429         _meter->set_type(t);
 430 }
 431
 432 bool
 433 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 434 {
 435         return ButtonPress (ev); /* EMIT SIGNAL */
 436 }
 437
 438 bool
 439 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 440 {
 441         if (ev->button == 1) {
 442                 clear_meters (false);
 443         }
 444         ButtonRelease(ev);
 445
 446         return true;
 447 }
 448
 449
 450 void LevelMeterBase::clear_meters (bool reset_highlight)
 451 {
 452         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 453                 (*i).meter->clear();
 454                 (*i).max_peak = minus_infinity();
 455                 if (reset_highlight)
 456                         (*i).meter->set_highlight(false);
 457         }
 458         max_peak = minus_infinity();
 459 }
 460
 461 void LevelMeterBase::hide_meters ()
 462 {
 463         hide_all_meters();
 464 }
 465
 466 void
 467 LevelMeterBase::color_handler ()
 468 {
 469         color_changed = true;
 470         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 471 }
 472
 473 LevelMeterHBox::LevelMeterHBox(Session* s)
 474         : LevelMeterBase(s, invalidator(*this))
 475 {
 476         set_spacing(1);
 477         show();
 478 }
 479
 480
 481 LevelMeterHBox::~LevelMeterHBox() {}
 482
 483 void
 484 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 485         pack_end (w, false, false);
 486 }
 487
 488 void
 489 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 490         remove (w);
 491 }
 492
 493
 494 LevelMeterVBox::LevelMeterVBox(Session* s)
 495         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 496 {
 497         set_spacing(1);
 498         show();
 499 }
 500 LevelMeterVBox::~LevelMeterVBox() {}
 501
 502 void
 503 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 504         pack_end (w, false, false);
 505 }
 506
 507 void
 508 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 509         remove (w);
 510 }