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 {
  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         _configuration_connection.disconnect();
  70         _meter_type_connection.disconnect();
  71         _parameter_connection.disconnect();
  72         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  73                 delete (*i).meter;
  74         }
  75         meters.clear();
  76 }
  77
  78 void
  79 LevelMeterBase::set_meter (PeakMeter* meter)
  80 {
  81         _configuration_connection.disconnect();
  82         _meter_type_connection.disconnect();
  83
  84         _meter = meter;
  85         color_changed = true;
  86
  87         if (_meter) {
  88                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  89                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  90         }
  91 }
  92
  93 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  94         switch (lul) {
  95                 case MeteringLineUp24:
  96                         return offset + 6.0;
  97                 case MeteringLineUp20:
  98                         return offset + 2.0;
  99                 case MeteringLineUp18:
 100                         return offset;
 101                 case MeteringLineUp15:
 102                         return offset - 3.0;
 103                 default:
 104                         break;
 105         }
 106         return offset;
 107 }
 108
 109 static float meter_lineup(float offset) {
 110         return meter_lineup_cfg(Config->get_meter_line_up_level(), offset);
 111 }
 112
 113 static float vu_standard() {
 114         // note - default meter config is +2dB (france)
 115         switch (Config->get_meter_vu_standard()) {
 116                 default:
 117                 case MeteringVUfrench:   // 0VU = -2dBu
 118                         return 0;
 119                 case MeteringVUamerican: // 0VU =  0dBu
 120                         return -2;
 121                 case MeteringVUstandard: // 0VU = +4dBu
 122                         return -6;
 123                 case MeteringVUeight:    // 0VU = +8dBu
 124                         return -10;
 125         }
 126 }
 127
 128 float
 129 LevelMeterBase::update_meters ()
 130 {
 131         vector<MeterInfo>::iterator i;
 132         uint32_t n;
 133
 134         if (!_meter) {
 135                 return 0.0f;
 136         }
 137
 138         uint32_t nmidi = _meter->input_streams().n_midi();
 139
 140         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 141                 if ((*i).packed) {
 142                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 143                         if (mpeak > (*i).max_peak) {
 144                                 (*i).max_peak = mpeak;
 145                                 (*i).meter->set_highlight(mpeak >= Config->get_meter_peak());
 146                         }
 147                         if (mpeak > max_peak) {
 148                                 max_peak = mpeak;
 149                         }
 150
 151                         if (n < nmidi) {
 152                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 153                         } else {
 154                                 const float peak = _meter->meter_level (n, meter_type);
 155                                 if (meter_type == MeterPeak) {
 156                                         (*i).meter->set (log_meter (peak));
 157                                 } else if (meter_type == MeterIEC1NOR) {
 158                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 159                                 } else if (meter_type == MeterIEC1DIN) {
 160                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(Config->get_meter_line_up_din(), 3.0)));
 161                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 162                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 163                                 } else if (meter_type == MeterVU) {
 164                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 165                                 } else if (meter_type == MeterK12) {
 166                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 167                                 } else if (meter_type == MeterK14) {
 168                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 169                                 } else if (meter_type == MeterK20) {
 170                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 171                                 } else { // RMS
 172                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 173                                 }
 174                         }
 175                 }
 176         }
 177         return max_peak;
 178 }
 179
 180 void
 181 LevelMeterBase::parameter_changed (string p)
 182 {
 183         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 184
 185         if (p == "meter-hold") {
 186                 vector<MeterInfo>::iterator i;
 187                 uint32_t n;
 188
 189                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 190                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 191                 }
 192         }
 193         else if (p == "meter-line-up-level") {
 194                 color_changed = true;
 195                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 196         }
 197         else if (p == "meter-style-led") {
 198                 color_changed = true;
 199                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 200         }
 201         else if (p == "meter-peak") {
 202                 vector<MeterInfo>::iterator i;
 203                 uint32_t n;
 204
 205                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 206                         (*i).max_peak = minus_infinity();
 207                 }
 208         }
 209 }
 210
 211 void
 212 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 213 {
 214         color_changed = true;
 215         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 216 }
 217
 218 void
 219 LevelMeterBase::meter_type_changed (MeterType t)
 220 {
 221         meter_type = t;
 222         color_changed = true;
 223         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 224         MeterTypeChanged(t);
 225 }
 226
 227 void
 228 LevelMeterBase::hide_all_meters ()
 229 {
 230         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 231                 if ((*i).packed) {
 232                         mtr_remove (*((*i).meter));
 233                         (*i).packed = false;
 234                 }
 235         }
 236 }
 237
 238 void
 239 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 240 {
 241         hide_all_meters ();
 242
 243         if (!_meter) {
 244                 return; /* do it later or never */
 245         }
 246
 247         int32_t nmidi = _meter->input_streams().n_midi();
 248         uint32_t nmeters = _meter->input_streams().n_total();
 249         regular_meter_width = initial_width;
 250         thin_meter_width = thin_width;
 251         meter_length = len;
 252
 253         guint16 width;
 254
 255         if (nmeters == 0) {
 256                 return;
 257         }
 258
 259         if (nmeters <= 2) {
 260                 width = regular_meter_width;
 261         } else {
 262                 width = thin_meter_width;
 263         }
 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 = Config->get_meter_style_led() ? 3 : 1;
 276                 b[0] = ARDOUR_UI::config()->color ("MeterBackgroundBot");
 277                 b[1] = ARDOUR_UI::config()->color ("MeterBackgroundTop");
 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 ("MidiMeterColor0");
 282                         c[1] = ARDOUR_UI::config()->color ("MidiMeterColor1");
 283                         c[2] = ARDOUR_UI::config()->color ("MidiMeterColor2");
 284                         c[3] = ARDOUR_UI::config()->color ("MidiMeterColor3");
 285                         c[4] = ARDOUR_UI::config()->color ("MidiMeterColor4");
 286                         c[5] = ARDOUR_UI::config()->color ("MidiMeterColor5");
 287                         c[6] = ARDOUR_UI::config()->color ("MidiMeterColor6");
 288                         c[7] = ARDOUR_UI::config()->color ("MidiMeterColor7");
 289                         c[8] = ARDOUR_UI::config()->color ("MidiMeterColor8");
 290                         c[9] = ARDOUR_UI::config()->color ("MidiMeterColor9");
 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 ("MeterColor0");
 297                         c[1] = ARDOUR_UI::config()->color ("MeterColor1");
 298                         c[2] = ARDOUR_UI::config()->color ("MeterColor2");
 299                         c[3] = ARDOUR_UI::config()->color ("MeterColor3");
 300                         c[4] = ARDOUR_UI::config()->color ("MeterColor4");
 301                         c[5] = ARDOUR_UI::config()->color ("MeterColor5");
 302                         c[6] = ARDOUR_UI::config()->color ("MeterColor6");
 303                         c[7] = ARDOUR_UI::config()->color ("MeterColor7");
 304                         c[8] = ARDOUR_UI::config()->color ("MeterColor8");
 305                         c[9] = ARDOUR_UI::config()->color ("MeterColor9");
 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                                 default: // PEAK, RMS
 380                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 381                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 382                                         stp[3] = 100.0; // 115 * log_meter(0)
 383                                 switch (Config->get_meter_line_up_level()) {
 384                                         case MeteringLineUp24:
 385                                                 stp[0] = 42.0;
 386                                                 break;
 387                                         case MeteringLineUp20:
 388                                                 stp[0] = 50.0;
 389                                                 break;
 390                                         default:
 391                                         case MeteringLineUp18:
 392                                                 stp[0] = 55.0;
 393                                                 break;
 394                                         case MeteringLineUp15:
 395                                                 stp[0] = 62.5;
 396                                                 break;
 397                                 }
 398                         }
 399                 }
 400                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 401                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 402                         meters[n].packed = false;
 403                         delete meters[n].meter;
 404                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 405                                         c[0], c[1], c[2], c[3], c[4],
 406                                         c[5], c[6], c[7], c[8], c[9],
 407                                         b[0], b[1], b[2], b[3],
 408                                         stp[0], stp[1], stp[2], stp[3],
 409                                         styleflags
 410                                         );
 411                         meters[n].meter->set_highlight(hl);
 412                         meters[n].width = width;
 413                         meters[n].length = len;
 414                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 415                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press), false);
 416                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release), false);
 417                 }
 418
 419                 //pack_end (*meters[n].meter, false, false);
 420                 mtr_pack (*meters[n].meter);
 421                 meters[n].meter->show_all ();
 422                 meters[n].packed = true;
 423         }
 424         //show();
 425         color_changed = false;
 426         visible_meter_type = meter_type;
 427 }
 428
 429 void
 430 LevelMeterBase::set_type(MeterType t)
 431 {
 432         meter_type = t;
 433         _meter->set_type(t);
 434 }
 435
 436 bool
 437 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 438 {
 439         return !!ButtonPress (ev); /* EMIT SIGNAL */
 440 }
 441
 442 bool
 443 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 444 {
 445         if (ev->button == 1) {
 446                 clear_meters (false);
 447         }
 448         ButtonRelease(ev);
 449
 450         return true;
 451 }
 452
 453
 454 void LevelMeterBase::clear_meters (bool reset_highlight)
 455 {
 456         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 457                 (*i).meter->clear();
 458                 (*i).max_peak = minus_infinity();
 459                 if (reset_highlight)
 460                         (*i).meter->set_highlight(false);
 461         }
 462         max_peak = minus_infinity();
 463 }
 464
 465 void LevelMeterBase::hide_meters ()
 466 {
 467         hide_all_meters();
 468 }
 469
 470 void
 471 LevelMeterBase::color_handler ()
 472 {
 473         color_changed = true;
 474         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 475 }
 476
 477 LevelMeterHBox::LevelMeterHBox(Session* s)
 478         : LevelMeterBase(s, invalidator(*this))
 479 {
 480         set_spacing(1);
 481         show();
 482 }
 483
 484
 485 LevelMeterHBox::~LevelMeterHBox() {}
 486
 487 void
 488 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 489         pack_end (w, false, false);
 490 }
 491
 492 void
 493 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 494         remove (w);
 495 }
 496
 497
 498 LevelMeterVBox::LevelMeterVBox(Session* s)
 499         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 500 {
 501         set_spacing(1);
 502         show();
 503 }
 504 LevelMeterVBox::~LevelMeterVBox() {}
 505
 506 void
 507 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 508         pack_end (w, false, false);
 509 }
 510
 511 void
 512 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 513         remove (w);
 514 }