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 "midi++/manager.h"
  27 #include "pbd/fastlog.h"
  28
  29 #include "ardour_ui.h"
  30 #include "global_signals.h"
  31 #include "level_meter.h"
  32 #include "utils.h"
  33 #include "logmeter.h"
  34 #include "gui_thread.h"
  35 #include "keyboard.h"
  36 #include "public_editor.h"
  37
  38 #include "i18n.h"
  39
  40 using namespace ARDOUR;
  41 using namespace PBD;
  42 using namespace Gtkmm2ext;
  43 using namespace Gtk;
  44 using namespace std;
  45
  46 LevelMeterBase::LevelMeterBase (Session* s, PBD::EventLoop::InvalidationRecord* ir, FastMeter::Orientation o)
  47         : parent_invalidator(ir)
  48         , _meter (0)
  49         , _meter_orientation(o)
  50         , regular_meter_width (6)
  51         , meter_length (0)
  52         , thin_meter_width(2)
  53 {
  54         set_session (s);
  55         Config->ParameterChanged.connect (_parameter_connection, parent_invalidator, boost::bind (&LevelMeterBase::parameter_changed, this, _1), gui_context());
  56         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &LevelMeterBase::on_theme_changed));
  57         ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeterBase::color_handler));
  58         max_peak = minus_infinity();
  59         meter_type = MeterPeak;
  60 }
  61
  62 void
  63 LevelMeterBase::on_theme_changed()
  64 {
  65         style_changed = true;
  66 }
  67
  68 LevelMeterBase::~LevelMeterBase ()
  69 {
  70         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  71                 delete (*i).meter;
  72         }
  73 }
  74
  75 void
  76 LevelMeterBase::set_meter (PeakMeter* meter)
  77 {
  78         _configuration_connection.disconnect();
  79         _meter_type_connection.disconnect();
  80
  81         _meter = meter;
  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(Config->get_meter_line_up_level(), offset);
 107 }
 108
 109 static float vu_standard() {
 110         // note - default meter config is +2dB (france)
 111         switch (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 >= 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 == MeterIEC1NOR) {
 154                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 155                                 } else if (meter_type == MeterIEC1DIN) {
 156                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(Config->get_meter_line_up_din(), 3.0)));
 157                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 158                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 159                                 } else if (meter_type == MeterVU) {
 160                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 161                                 } else if (meter_type == MeterK14) {
 162                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 163                                 } else if (meter_type == MeterK20) {
 164                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 165                                 } else { // RMS
 166                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 167                                 }
 168                         }
 169                 }
 170         }
 171         return max_peak;
 172 }
 173
 174 void
 175 LevelMeterBase::parameter_changed (string p)
 176 {
 177         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 178
 179         if (p == "meter-hold") {
 180                 vector<MeterInfo>::iterator i;
 181                 uint32_t n;
 182
 183                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 184                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 185                 }
 186         }
 187         else if (p == "meter-line-up-level") {
 188                 color_changed = true;
 189                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 190         }
 191         else if (p == "meter-style-led") {
 192                 color_changed = true;
 193                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 194         }
 195         else if (p == "meter-peak") {
 196                 vector<MeterInfo>::iterator i;
 197                 uint32_t n;
 198
 199                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 200                         (*i).max_peak = minus_infinity();
 201                 }
 202         }
 203 }
 204
 205 void
 206 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 207 {
 208         color_changed = true;
 209         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 210 }
 211
 212 void
 213 LevelMeterBase::meter_type_changed (MeterType t)
 214 {
 215         meter_type = t;
 216         color_changed = true;
 217         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 218         MeterTypeChanged(t);
 219 }
 220
 221 void
 222 LevelMeterBase::hide_all_meters ()
 223 {
 224         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 225                 if ((*i).packed) {
 226                         mtr_remove (*((*i).meter));
 227                         (*i).packed = false;
 228                 }
 229         }
 230 }
 231
 232 void
 233 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 234 {
 235         hide_all_meters ();
 236
 237         if (!_meter) {
 238                 return; /* do it later or never */
 239         }
 240
 241         int32_t nmidi = _meter->input_streams().n_midi();
 242         uint32_t nmeters = _meter->input_streams().n_total();
 243         regular_meter_width = initial_width;
 244         thin_meter_width = thin_width;
 245         meter_length = len;
 246
 247         guint16 width;
 248
 249         if (nmeters == 0) {
 250                 return;
 251         }
 252
 253         if (nmeters <= 2) {
 254                 width = regular_meter_width;
 255         } else {
 256                 width = thin_meter_width;
 257         }
 258
 259         while (meters.size() < nmeters) {
 260                 meters.push_back (MeterInfo());
 261         }
 262
 263         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 264
 265         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 266                 uint32_t c[10];
 267                 uint32_t b[4];
 268                 float stp[4];
 269                 int styleflags = Config->get_meter_style_led() ? 3 : 1;
 270                 b[0] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundBot();
 271                 b[1] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundTop();
 272                 b[2] = 0x991122ff; // red highlight gradient Bot
 273                 b[3] = 0x551111ff; // red highlight gradient Top
 274                 if (n < nmidi) {
 275                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 276                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 277                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 278                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 279                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 280                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 281                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 282                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 283                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 284                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 285                         stp[0] = 115.0 *  32.0 / 128.0;
 286                         stp[1] = 115.0 *  64.0 / 128.0;
 287                         stp[2] = 115.0 * 100.0 / 128.0;
 288                         stp[3] = 115.0 * 112.0 / 128.0;
 289                 } else {
 290                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 291                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 292                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 293                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 294                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 295                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 296                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 297                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 298                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 299                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 300
 301                         switch (meter_type) {
 302                                 case MeterK20:
 303                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 304                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 305                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 306                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 307                                         c[0] = c[1] = 0x008800ff;
 308                                         c[2] = c[3] = 0x00ff00ff;
 309                                         c[4] = c[5] = 0xffff00ff;
 310                                         c[6] = c[7] = 0xffff00ff;
 311                                         c[8] = c[9] = 0xff0000ff;
 312                                         break;
 313                                 case MeterK14:
 314                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 315                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 316                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 317                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 318                                         c[0] = c[1] = 0x008800ff;
 319                                         c[2] = c[3] = 0x00ff00ff;
 320                                         c[4] = c[5] = 0xffff00ff;
 321                                         c[6] = c[7] = 0xffff00ff;
 322                                         c[8] = c[9] = 0xff0000ff;
 323                                         break;
 324                                 case MeterIEC2BBC:
 325                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 326                                                 ARDOUR_UI::config()->color_by_name ("meter color BBC");
 327                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 328                                         break;
 329                                 case MeterIEC2EBU:
 330                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 331                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 332                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 333                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 334                                         c[3] = c[2] = c[1];
 335                                         c[6] = c[7] = c[8] = c[9];
 336                                         break;
 337                                 case MeterIEC1NOR:
 338                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 339                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 340                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 341                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 342                                         //c[2] = c[3] = c[1]; // dark-green
 343                                         c[0] = c[1] = c[2]; // bright-green
 344                                         c[6] = c[7] = c[8] = c[9];
 345                                         break;
 346                                 case MeterIEC1DIN:
 347                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 348                                         stp[1] = 115.0 * meter_deflect_din(-18);
 349                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 350                                         stp[3] = 115.0 * meter_deflect_din( -9);
 351                                         c[0] = c[1] = c[2] = c[3] = 0x00aa00ff;
 352                                         c[4] = c[6];
 353                                         c[5] = c[7];
 354                                         break;
 355                                 case MeterVU:
 356                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 357                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 358                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 359                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 360                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = 0x00aa00ff;
 361                                         c[6] = c[7] = c[8] = c[9] = 0xff8800ff;
 362                                         break;
 363                                 default: // PEAK, RMS
 364                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 365                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 366                                         stp[3] = 100.0; // 115 * log_meter(0)
 367                                 switch (Config->get_meter_line_up_level()) {
 368                                         case MeteringLineUp24:
 369                                                 stp[0] = 42.0;
 370                                                 break;
 371                                         case MeteringLineUp20:
 372                                                 stp[0] = 50.0;
 373                                                 break;
 374                                         default:
 375                                         case MeteringLineUp18:
 376                                                 stp[0] = 55.0;
 377                                                 break;
 378                                         case MeteringLineUp15:
 379                                                 stp[0] = 62.5;
 380                                                 break;
 381                                 }
 382                         }
 383                 }
 384                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 385                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 386                         meters[n].packed = false;
 387                         delete meters[n].meter;
 388                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 389                                         c[0], c[1], c[2], c[3], c[4],
 390                                         c[5], c[6], c[7], c[8], c[9],
 391                                         b[0], b[1], b[2], b[3],
 392                                         stp[0], stp[1], stp[2], stp[3],
 393                                         styleflags
 394                                         );
 395                         meters[n].meter->set_highlight(hl);
 396                         meters[n].width = width;
 397                         meters[n].length = len;
 398                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 399                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press));
 400                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release));
 401                 }
 402
 403                 //pack_end (*meters[n].meter, false, false);
 404                 mtr_pack (*meters[n].meter);
 405                 meters[n].meter->show_all ();
 406                 meters[n].packed = true;
 407         }
 408         //show();
 409         color_changed = false;
 410         visible_meter_type = meter_type;
 411 }
 412
 413 void
 414 LevelMeterBase::set_type(MeterType t)
 415 {
 416         meter_type = t;
 417         _meter->set_type(t);
 418 }
 419
 420 bool
 421 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 422 {
 423         return ButtonPress (ev); /* EMIT SIGNAL */
 424 }
 425
 426 bool
 427 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 428 {
 429         if (ev->button == 1) {
 430                 clear_meters (false);
 431         }
 432         ButtonRelease(ev);
 433
 434         return true;
 435 }
 436
 437
 438 void LevelMeterBase::clear_meters (bool reset_highlight)
 439 {
 440         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 441                 (*i).meter->clear();
 442                 (*i).max_peak = minus_infinity();
 443                 if (reset_highlight)
 444                         (*i).meter->set_highlight(false);
 445         }
 446         max_peak = minus_infinity();
 447 }
 448
 449 void LevelMeterBase::hide_meters ()
 450 {
 451         hide_all_meters();
 452 }
 453
 454 void
 455 LevelMeterBase::color_handler ()
 456 {
 457         color_changed = true;
 458         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 459 }
 460
 461 LevelMeterHBox::LevelMeterHBox(Session* s)
 462         : LevelMeterBase(s, invalidator(*this))
 463 {
 464         set_spacing(1);
 465         show();
 466 }
 467
 468
 469 LevelMeterHBox::~LevelMeterHBox() {}
 470
 471 void
 472 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 473         pack_end (w, false, false);
 474 }
 475
 476 void
 477 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 478         remove (w);
 479 }
 480
 481
 482 LevelMeterVBox::LevelMeterVBox(Session* s)
 483         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 484 {
 485         set_spacing(1);
 486         show();
 487 }
 488 LevelMeterVBox::~LevelMeterVBox() {}
 489
 490 void
 491 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 492         pack_end (w, false, false);
 493 }
 494
 495 void
 496 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 497         remove (w);
 498 }