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 "pbd/fastlog.h"
  26
  27 #include "ardour_ui.h"
  28 #include "global_signals.h"
  29 #include "level_meter.h"
  30 #include "utils.h"
  31 #include "logmeter.h"
  32 #include "gui_thread.h"
  33 #include "keyboard.h"
  34 #include "public_editor.h"
  35
  36 #include "i18n.h"
  37
  38 using namespace ARDOUR;
  39 using namespace ARDOUR_UI_UTILS;
  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         , max_peak (minus_infinity())
  53         , meter_type (MeterPeak)
  54         , color_changed (false)
  55 {
  56         set_session (s);
  57
  58         Config->ParameterChanged.connect (_parameter_connection, parent_invalidator, boost::bind (&LevelMeterBase::parameter_changed, this, _1), gui_context());
  59         ARDOUR_UI::config()->ParameterChanged.connect (sigc::mem_fun(*this, &LevelMeterBase::parameter_changed));
  60         ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeterBase::color_handler));
  61 }
  62
  63 LevelMeterBase::~LevelMeterBase ()
  64 {
  65         _configuration_connection.disconnect();
  66         _meter_type_connection.disconnect();
  67         _parameter_connection.disconnect();
  68         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  69                 delete (*i).meter;
  70         }
  71         meters.clear();
  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         color_changed = true;
  82
  83         if (_meter) {
  84                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  85                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  86         }
  87 }
  88
  89 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  90         switch (lul) {
  91                 case MeteringLineUp24:
  92                         return offset + 6.0;
  93                 case MeteringLineUp20:
  94                         return offset + 2.0;
  95                 case MeteringLineUp18:
  96                         return offset;
  97                 case MeteringLineUp15:
  98                         return offset - 3.0;
  99                 default:
 100                         break;
 101         }
 102         return offset;
 103 }
 104
 105 static float meter_lineup(float offset) {
 106         return meter_lineup_cfg (ARDOUR_UI::config()->get_meter_line_up_level(), offset);
 107 }
 108
 109 static float vu_standard() {
 110         // note - default meter config is +2dB (france)
 111         switch (ARDOUR_UI::config()->get_meter_vu_standard()) {
 112                 default:
 113                 case MeteringVUfrench:   // 0VU = -2dBu
 114                         return 0;
 115                 case MeteringVUamerican: // 0VU =  0dBu
 116                         return -2;
 117                 case MeteringVUstandard: // 0VU = +4dBu
 118                         return -6;
 119                 case MeteringVUeight:    // 0VU = +8dBu
 120                         return -10;
 121         }
 122 }
 123
 124 float
 125 LevelMeterBase::update_meters ()
 126 {
 127         vector<MeterInfo>::iterator i;
 128         uint32_t n;
 129
 130         if (!_meter) {
 131                 return 0.0f;
 132         }
 133
 134         uint32_t nmidi = _meter->input_streams().n_midi();
 135
 136         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 137                 if ((*i).packed) {
 138                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 139                         if (mpeak > (*i).max_peak) {
 140                                 (*i).max_peak = mpeak;
 141                                 (*i).meter->set_highlight(mpeak >= ARDOUR_UI::config()->get_meter_peak());
 142                         }
 143                         if (mpeak > max_peak) {
 144                                 max_peak = mpeak;
 145                         }
 146
 147                         if (n < nmidi) {
 148                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 149                         } else {
 150                                 const float peak = _meter->meter_level (n, meter_type);
 151                                 if (meter_type == MeterPeak) {
 152                                         (*i).meter->set (log_meter (peak));
 153                                 } else if (meter_type == MeterPeak0dB) {
 154                                         (*i).meter->set (log_meter0dB (peak));
 155                                 } else if (meter_type == MeterIEC1NOR) {
 156                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 157                                 } else if (meter_type == MeterIEC1DIN) {
 158                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(ARDOUR_UI::config()->get_meter_line_up_din(), 3.0)));
 159                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 160                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 161                                 } else if (meter_type == MeterVU) {
 162                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 163                                 } else if (meter_type == MeterK12) {
 164                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 165                                 } else if (meter_type == MeterK14) {
 166                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 167                                 } else if (meter_type == MeterK20) {
 168                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 169                                 } else { // RMS
 170                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 171                                 }
 172                         }
 173                 }
 174         }
 175         return max_peak;
 176 }
 177
 178 void
 179 LevelMeterBase::parameter_changed (string p)
 180 {
 181         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 182
 183         if (p == "meter-hold") {
 184                 vector<MeterInfo>::iterator i;
 185                 uint32_t n;
 186
 187                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 188                         (*i).meter->set_hold_count ((uint32_t) floor(ARDOUR_UI::config()->get_meter_hold()));
 189                 }
 190         }
 191         else if (p == "meter-line-up-level") {
 192                 color_changed = true;
 193                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 194         }
 195         else if (p == "meter-style-led") {
 196                 color_changed = true;
 197                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 198         }
 199         else if (p == "meter-peak") {
 200                 vector<MeterInfo>::iterator i;
 201                 uint32_t n;
 202
 203                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 204                         (*i).max_peak = minus_infinity();
 205                 }
 206         }
 207 }
 208
 209 void
 210 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 211 {
 212         color_changed = true;
 213         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 214 }
 215
 216 void
 217 LevelMeterBase::meter_type_changed (MeterType t)
 218 {
 219         meter_type = t;
 220         color_changed = true;
 221         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 222         MeterTypeChanged(t);
 223 }
 224
 225 void
 226 LevelMeterBase::hide_all_meters ()
 227 {
 228         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 229                 if ((*i).packed) {
 230                         mtr_remove (*((*i).meter));
 231                         (*i).packed = false;
 232                 }
 233         }
 234 }
 235
 236 void
 237 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 238 {
 239         hide_all_meters ();
 240
 241         if (!_meter) {
 242                 return; /* do it later or never */
 243         }
 244
 245         int32_t nmidi = _meter->input_streams().n_midi();
 246         uint32_t nmeters = _meter->input_streams().n_total();
 247         regular_meter_width = initial_width;
 248         thin_meter_width = thin_width;
 249         meter_length = len;
 250
 251         guint16 width;
 252
 253         if (nmeters == 0) {
 254                 return;
 255         }
 256
 257         if (nmeters <= 2) {
 258                 width = regular_meter_width;
 259         } else {
 260                 width = thin_meter_width;
 261         }
 262
 263         width = rint (width * ARDOUR_UI::ui_scale);
 264
 265         while (meters.size() < nmeters) {
 266                 meters.push_back (MeterInfo());
 267         }
 268
 269         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 270
 271         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 272                 uint32_t c[10];
 273                 uint32_t b[4];
 274                 float stp[4];
 275                 int styleflags = ARDOUR_UI::config()->get_meter_style_led() ? 3 : 1;
 276                 b[0] = ARDOUR_UI::config()->color ("meter background bottom");
 277                 b[1] = ARDOUR_UI::config()->color ("meter background top");
 278                 b[2] = 0x991122ff; // red highlight gradient Bot
 279                 b[3] = 0x551111ff; // red highlight gradient Top
 280                 if (n < nmidi) {
 281                         c[0] = ARDOUR_UI::config()->color ("midi meter color0");
 282                         c[1] = ARDOUR_UI::config()->color ("midi meter color1");
 283                         c[2] = ARDOUR_UI::config()->color ("midi meter color2");
 284                         c[3] = ARDOUR_UI::config()->color ("midi meter color3");
 285                         c[4] = ARDOUR_UI::config()->color ("midi meter color4");
 286                         c[5] = ARDOUR_UI::config()->color ("midi meter color5");
 287                         c[6] = ARDOUR_UI::config()->color ("midi meter color6");
 288                         c[7] = ARDOUR_UI::config()->color ("midi meter color7");
 289                         c[8] = ARDOUR_UI::config()->color ("midi meter color8");
 290                         c[9] = ARDOUR_UI::config()->color ("midi meter color9");
 291                         stp[0] = 115.0 *  32.0 / 128.0;
 292                         stp[1] = 115.0 *  64.0 / 128.0;
 293                         stp[2] = 115.0 * 100.0 / 128.0;
 294                         stp[3] = 115.0 * 112.0 / 128.0;
 295                 } else {
 296                         c[0] = ARDOUR_UI::config()->color ("meter color0");
 297                         c[1] = ARDOUR_UI::config()->color ("meter color1");
 298                         c[2] = ARDOUR_UI::config()->color ("meter color2");
 299                         c[3] = ARDOUR_UI::config()->color ("meter color3");
 300                         c[4] = ARDOUR_UI::config()->color ("meter color4");
 301                         c[5] = ARDOUR_UI::config()->color ("meter color5");
 302                         c[6] = ARDOUR_UI::config()->color ("meter color6");
 303                         c[7] = ARDOUR_UI::config()->color ("meter color7");
 304                         c[8] = ARDOUR_UI::config()->color ("meter color8");
 305                         c[9] = ARDOUR_UI::config()->color ("meter color9");
 306
 307                         switch (meter_type) {
 308                                 case MeterK20:
 309                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 310                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 311                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 312                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 313                                         c[0] = c[1] = 0x008800ff;
 314                                         c[2] = c[3] = 0x00ff00ff;
 315                                         c[4] = c[5] = 0xffff00ff;
 316                                         c[6] = c[7] = 0xffff00ff;
 317                                         c[8] = c[9] = 0xff0000ff;
 318                                         break;
 319                                 case MeterK14:
 320                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 321                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 322                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 323                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 324                                         c[0] = c[1] = 0x008800ff;
 325                                         c[2] = c[3] = 0x00ff00ff;
 326                                         c[4] = c[5] = 0xffff00ff;
 327                                         c[6] = c[7] = 0xffff00ff;
 328                                         c[8] = c[9] = 0xff0000ff;
 329                                         break;
 330                                 case MeterK12:
 331                                         stp[0] = 115.0 * meter_deflect_k(-32, 12);  //-20
 332                                         stp[1] = 115.0 * meter_deflect_k(-12, 12);  //  0
 333                                         stp[2] = 115.0 * meter_deflect_k(-10, 12);  // +2
 334                                         stp[3] = 115.0 * meter_deflect_k( -8, 12);  // +4
 335                                         c[0] = c[1] = 0x008800ff;
 336                                         c[2] = c[3] = 0x00ff00ff;
 337                                         c[4] = c[5] = 0xffff00ff;
 338                                         c[6] = c[7] = 0xffff00ff;
 339                                         c[8] = c[9] = 0xff0000ff;
 340                                         break;
 341                                 case MeterIEC2BBC:
 342                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 343                                                 ARDOUR_UI::config()->color ("meter color BBC");
 344                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 345                                         break;
 346                                 case MeterIEC2EBU:
 347                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 348                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 349                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 350                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 351                                         c[3] = c[2] = c[1];
 352                                         c[6] = c[7] = c[8] = c[9];
 353                                         break;
 354                                 case MeterIEC1NOR:
 355                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 356                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 357                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 358                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 359                                         c[0] = c[1] = c[2]; // bright-green
 360                                         c[6] = c[7] = c[8] = c[9];
 361                                         break;
 362                                 case MeterIEC1DIN:
 363                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 364                                         stp[1] = 115.0 * meter_deflect_din(-18);
 365                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 366                                         stp[3] = 115.0 * meter_deflect_din( -9);
 367                                         c[0] = c[2] = c[3] = c[1];
 368                                         c[4] = c[6];
 369                                         c[5] = c[7];
 370                                         break;
 371                                 case MeterVU:
 372                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 373                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 374                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 375                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 376                                         c[0] = c[2] = c[3] = c[4] = c[5] = c[1];
 377                                         c[7] = c[8] = c[9] = c[6];
 378                                         break;
 379                                 case MeterPeak0dB:
 380                                          stp[1] =  89.125; // 115.0 * log_meter0dB(-9);
 381                                          stp[2] = 106.375; // 115.0 * log_meter0dB(-3);
 382                                          stp[3] = 115.0;   // 115.0 * log_meter0dB(0);
 383                                         switch (ARDOUR_UI::config()->get_meter_line_up_level()) {
 384                                         case MeteringLineUp24:
 385                                                 stp[0] = 115.0 * log_meter0dB(-24);
 386                                                 break;
 387                                         case MeteringLineUp20:
 388                                                 stp[0] = 115.0 * log_meter0dB(-20);
 389                                                 break;
 390                                         default:
 391                                         case MeteringLineUp18:
 392                                                 stp[0] = 115.0 * log_meter0dB(-18);
 393                                                 break;
 394                                         case MeteringLineUp15:
 395                                                 stp[0] = 115.0 * log_meter0dB(-15);
 396                                         }
 397                                         break;
 398                                 default: // PEAK, RMS
 399                                         stp[1] = 77.5;  // 115 * log_meter(-9)
 400                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 401                                         stp[3] = 100.0; // 115 * log_meter(0)
 402                                         switch (ARDOUR_UI::config()->get_meter_line_up_level()) {
 403                                         case MeteringLineUp24:
 404                                                 stp[0] = 42.0;
 405                                                 break;
 406                                         case MeteringLineUp20:
 407                                                 stp[0] = 50.0;
 408                                                 break;
 409                                         default:
 410                                         case MeteringLineUp18:
 411                                                 stp[0] = 55.0;
 412                                                 break;
 413                                         case MeteringLineUp15:
 414                                                 stp[0] = 62.5;
 415                                                 break;
 416                                 }
 417                         }
 418                 }
 419                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 420                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 421                         meters[n].packed = false;
 422                         delete meters[n].meter;
 423                         meters[n].meter = new FastMeter ((uint32_t) floor (ARDOUR_UI::config()->get_meter_hold()), width, _meter_orientation, len,
 424                                         c[0], c[1], c[2], c[3], c[4],
 425                                         c[5], c[6], c[7], c[8], c[9],
 426                                         b[0], b[1], b[2], b[3],
 427                                         stp[0], stp[1], stp[2], stp[3],
 428                                         styleflags
 429                                         );
 430                         meters[n].meter->set_highlight(hl);
 431                         meters[n].width = width;
 432                         meters[n].length = len;
 433                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 434                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press), false);
 435                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release), false);
 436                 }
 437
 438                 //pack_end (*meters[n].meter, false, false);
 439                 mtr_pack (*meters[n].meter);
 440                 meters[n].meter->show_all ();
 441                 meters[n].packed = true;
 442         }
 443         //show();
 444         color_changed = false;
 445         visible_meter_type = meter_type;
 446 }
 447
 448 void
 449 LevelMeterBase::set_type(MeterType t)
 450 {
 451         meter_type = t;
 452         _meter->set_type(t);
 453 }
 454
 455 bool
 456 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 457 {
 458         return !!ButtonPress (ev); /* EMIT SIGNAL */
 459 }
 460
 461 bool
 462 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 463 {
 464         if (ev->button == 1) {
 465                 clear_meters (false);
 466         }
 467         ButtonRelease(ev);
 468
 469         return true;
 470 }
 471
 472
 473 void LevelMeterBase::clear_meters (bool reset_highlight)
 474 {
 475         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 476                 (*i).meter->clear();
 477                 (*i).max_peak = minus_infinity();
 478                 if (reset_highlight)
 479                         (*i).meter->set_highlight(false);
 480         }
 481         max_peak = minus_infinity();
 482 }
 483
 484 void LevelMeterBase::hide_meters ()
 485 {
 486         hide_all_meters();
 487 }
 488
 489 void
 490 LevelMeterBase::color_handler ()
 491 {
 492         color_changed = true;
 493         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 494 }
 495
 496 LevelMeterHBox::LevelMeterHBox(Session* s)
 497         : LevelMeterBase(s, invalidator(*this))
 498 {
 499         set_spacing(1);
 500         show();
 501 }
 502
 503
 504 LevelMeterHBox::~LevelMeterHBox() {}
 505
 506 void
 507 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 508         pack_end (w, false, false);
 509 }
 510
 511 void
 512 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 513         remove (w);
 514 }
 515
 516
 517 LevelMeterVBox::LevelMeterVBox(Session* s)
 518         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 519 {
 520         set_spacing(1);
 521         show();
 522 }
 523 LevelMeterVBox::~LevelMeterVBox() {}
 524
 525 void
 526 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 527         pack_end (w, false, false);
 528 }
 529
 530 void
 531 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 532         remove (w);
 533 }