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 }
  76
  77 void
  78 LevelMeterBase::set_meter (PeakMeter* meter)
  79 {
  80         _configuration_connection.disconnect();
  81         _meter_type_connection.disconnect();
  82
  83         _meter = meter;
  84         color_changed = true;
  85
  86         if (_meter) {
  87                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  88                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  89         }
  90 }
  91
  92 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  93         switch (lul) {
  94                 case MeteringLineUp24:
  95                         return offset + 6.0;
  96                 case MeteringLineUp20:
  97                         return offset + 2.0;
  98                 case MeteringLineUp18:
  99                         return offset;
 100                 case MeteringLineUp15:
 101                         return offset - 3.0;
 102                 default:
 103                         break;
 104         }
 105         return offset;
 106 }
 107
 108 static float meter_lineup(float offset) {
 109         return meter_lineup_cfg(Config->get_meter_line_up_level(), offset);
 110 }
 111
 112 static float vu_standard() {
 113         // note - default meter config is +2dB (france)
 114         switch (Config->get_meter_vu_standard()) {
 115                 default:
 116                 case MeteringVUfrench:   // 0VU = -2dBu
 117                         return 0;
 118                 case MeteringVUamerican: // 0VU =  0dBu
 119                         return -2;
 120                 case MeteringVUstandard: // 0VU = +4dBu
 121                         return -6;
 122                 case MeteringVUeight:    // 0VU = +8dBu
 123                         return -10;
 124         }
 125 }
 126
 127 float
 128 LevelMeterBase::update_meters ()
 129 {
 130         vector<MeterInfo>::iterator i;
 131         uint32_t n;
 132
 133         if (!_meter) {
 134                 return 0.0f;
 135         }
 136
 137         uint32_t nmidi = _meter->input_streams().n_midi();
 138
 139         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 140                 if ((*i).packed) {
 141                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 142                         if (mpeak > (*i).max_peak) {
 143                                 (*i).max_peak = mpeak;
 144                                 (*i).meter->set_highlight(mpeak >= Config->get_meter_peak());
 145                         }
 146                         if (mpeak > max_peak) {
 147                                 max_peak = mpeak;
 148                         }
 149
 150                         if (n < nmidi) {
 151                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 152                         } else {
 153                                 const float peak = _meter->meter_level (n, meter_type);
 154                                 if (meter_type == MeterPeak) {
 155                                         (*i).meter->set (log_meter (peak));
 156                                 } else if (meter_type == MeterIEC1NOR) {
 157                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 158                                 } else if (meter_type == MeterIEC1DIN) {
 159                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(Config->get_meter_line_up_din(), 3.0)));
 160                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 161                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 162                                 } else if (meter_type == MeterVU) {
 163                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 164                                 } else if (meter_type == MeterK12) {
 165                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 166                                 } else if (meter_type == MeterK14) {
 167                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 168                                 } else if (meter_type == MeterK20) {
 169                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 170                                 } else { // RMS
 171                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 172                                 }
 173                         }
 174                 }
 175         }
 176         return max_peak;
 177 }
 178
 179 void
 180 LevelMeterBase::parameter_changed (string p)
 181 {
 182         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 183
 184         if (p == "meter-hold") {
 185                 vector<MeterInfo>::iterator i;
 186                 uint32_t n;
 187
 188                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 189                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 190                 }
 191         }
 192         else if (p == "meter-line-up-level") {
 193                 color_changed = true;
 194                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 195         }
 196         else if (p == "meter-style-led") {
 197                 color_changed = true;
 198                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 199         }
 200         else if (p == "meter-peak") {
 201                 vector<MeterInfo>::iterator i;
 202                 uint32_t n;
 203
 204                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 205                         (*i).max_peak = minus_infinity();
 206                 }
 207         }
 208 }
 209
 210 void
 211 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 212 {
 213         color_changed = true;
 214         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 215 }
 216
 217 void
 218 LevelMeterBase::meter_type_changed (MeterType t)
 219 {
 220         meter_type = t;
 221         color_changed = true;
 222         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 223         MeterTypeChanged(t);
 224 }
 225
 226 void
 227 LevelMeterBase::hide_all_meters ()
 228 {
 229         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 230                 if ((*i).packed) {
 231                         mtr_remove (*((*i).meter));
 232                         (*i).packed = false;
 233                 }
 234         }
 235 }
 236
 237 void
 238 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 239 {
 240         hide_all_meters ();
 241
 242         if (!_meter) {
 243                 return; /* do it later or never */
 244         }
 245
 246         int32_t nmidi = _meter->input_streams().n_midi();
 247         uint32_t nmeters = _meter->input_streams().n_total();
 248         regular_meter_width = initial_width;
 249         thin_meter_width = thin_width;
 250         meter_length = len;
 251
 252         guint16 width;
 253
 254         if (nmeters == 0) {
 255                 return;
 256         }
 257
 258         if (nmeters <= 2) {
 259                 width = regular_meter_width;
 260         } else {
 261                 width = thin_meter_width;
 262         }
 263
 264         while (meters.size() < nmeters) {
 265                 meters.push_back (MeterInfo());
 266         }
 267
 268         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 269
 270         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 271                 uint32_t c[10];
 272                 uint32_t b[4];
 273                 float stp[4];
 274                 int styleflags = Config->get_meter_style_led() ? 3 : 1;
 275                 b[0] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundBot();
 276                 b[1] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundTop();
 277                 b[2] = 0x991122ff; // red highlight gradient Bot
 278                 b[3] = 0x551111ff; // red highlight gradient Top
 279                 if (n < nmidi) {
 280                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 281                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 282                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 283                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 284                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 285                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 286                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 287                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 288                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 289                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 290                         stp[0] = 115.0 *  32.0 / 128.0;
 291                         stp[1] = 115.0 *  64.0 / 128.0;
 292                         stp[2] = 115.0 * 100.0 / 128.0;
 293                         stp[3] = 115.0 * 112.0 / 128.0;
 294                 } else {
 295                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 296                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 297                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 298                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 299                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 300                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 301                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 302                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 303                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 304                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 305
 306                         switch (meter_type) {
 307                                 case MeterK20:
 308                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 309                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 310                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 311                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 312                                         c[0] = c[1] = 0x008800ff;
 313                                         c[2] = c[3] = 0x00ff00ff;
 314                                         c[4] = c[5] = 0xffff00ff;
 315                                         c[6] = c[7] = 0xffff00ff;
 316                                         c[8] = c[9] = 0xff0000ff;
 317                                         break;
 318                                 case MeterK14:
 319                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 320                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 321                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 322                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 323                                         c[0] = c[1] = 0x008800ff;
 324                                         c[2] = c[3] = 0x00ff00ff;
 325                                         c[4] = c[5] = 0xffff00ff;
 326                                         c[6] = c[7] = 0xffff00ff;
 327                                         c[8] = c[9] = 0xff0000ff;
 328                                         break;
 329                                 case MeterK12:
 330                                         stp[0] = 115.0 * meter_deflect_k(-32, 12);  //-20
 331                                         stp[1] = 115.0 * meter_deflect_k(-12, 12);  //  0
 332                                         stp[2] = 115.0 * meter_deflect_k(-10, 12);  // +2
 333                                         stp[3] = 115.0 * meter_deflect_k( -8, 12);  // +4
 334                                         c[0] = c[1] = 0x008800ff;
 335                                         c[2] = c[3] = 0x00ff00ff;
 336                                         c[4] = c[5] = 0xffff00ff;
 337                                         c[6] = c[7] = 0xffff00ff;
 338                                         c[8] = c[9] = 0xff0000ff;
 339                                         break;
 340                                 case MeterIEC2BBC:
 341                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 342                                                 ARDOUR_UI::config()->color_by_name ("meter color BBC");
 343                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 344                                         break;
 345                                 case MeterIEC2EBU:
 346                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 347                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 348                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 349                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 350                                         c[3] = c[2] = c[1];
 351                                         c[6] = c[7] = c[8] = c[9];
 352                                         break;
 353                                 case MeterIEC1NOR:
 354                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 355                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 356                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 357                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 358                                         c[0] = c[1] = c[2]; // bright-green
 359                                         c[6] = c[7] = c[8] = c[9];
 360                                         break;
 361                                 case MeterIEC1DIN:
 362                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 363                                         stp[1] = 115.0 * meter_deflect_din(-18);
 364                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 365                                         stp[3] = 115.0 * meter_deflect_din( -9);
 366                                         c[0] = c[2] = c[3] = c[1];
 367                                         c[4] = c[6];
 368                                         c[5] = c[7];
 369                                         break;
 370                                 case MeterVU:
 371                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 372                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 373                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 374                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 375                                         c[0] = c[2] = c[3] = c[4] = c[5] = c[1];
 376                                         c[7] = c[8] = c[9] = c[6];
 377                                         break;
 378                                 default: // PEAK, RMS
 379                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 380                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 381                                         stp[3] = 100.0; // 115 * log_meter(0)
 382                                 switch (Config->get_meter_line_up_level()) {
 383                                         case MeteringLineUp24:
 384                                                 stp[0] = 42.0;
 385                                                 break;
 386                                         case MeteringLineUp20:
 387                                                 stp[0] = 50.0;
 388                                                 break;
 389                                         default:
 390                                         case MeteringLineUp18:
 391                                                 stp[0] = 55.0;
 392                                                 break;
 393                                         case MeteringLineUp15:
 394                                                 stp[0] = 62.5;
 395                                                 break;
 396                                 }
 397                         }
 398                 }
 399                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 400                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 401                         meters[n].packed = false;
 402                         delete meters[n].meter;
 403                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 404                                         c[0], c[1], c[2], c[3], c[4],
 405                                         c[5], c[6], c[7], c[8], c[9],
 406                                         b[0], b[1], b[2], b[3],
 407                                         stp[0], stp[1], stp[2], stp[3],
 408                                         styleflags
 409                                         );
 410                         meters[n].meter->set_highlight(hl);
 411                         meters[n].width = width;
 412                         meters[n].length = len;
 413                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 414                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press), false);
 415                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release), false);
 416                 }
 417
 418                 //pack_end (*meters[n].meter, false, false);
 419                 mtr_pack (*meters[n].meter);
 420                 meters[n].meter->show_all ();
 421                 meters[n].packed = true;
 422         }
 423         //show();
 424         color_changed = false;
 425         visible_meter_type = meter_type;
 426 }
 427
 428 void
 429 LevelMeterBase::set_type(MeterType t)
 430 {
 431         meter_type = t;
 432         _meter->set_type(t);
 433 }
 434
 435 bool
 436 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 437 {
 438         return ButtonPress (ev); /* EMIT SIGNAL */
 439 }
 440
 441 bool
 442 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 443 {
 444         if (ev->button == 1) {
 445                 clear_meters (false);
 446         }
 447         ButtonRelease(ev);
 448
 449         return true;
 450 }
 451
 452
 453 void LevelMeterBase::clear_meters (bool reset_highlight)
 454 {
 455         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 456                 (*i).meter->clear();
 457                 (*i).max_peak = minus_infinity();
 458                 if (reset_highlight)
 459                         (*i).meter->set_highlight(false);
 460         }
 461         max_peak = minus_infinity();
 462 }
 463
 464 void LevelMeterBase::hide_meters ()
 465 {
 466         hide_all_meters();
 467 }
 468
 469 void
 470 LevelMeterBase::color_handler ()
 471 {
 472         color_changed = true;
 473         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 474 }
 475
 476 LevelMeterHBox::LevelMeterHBox(Session* s)
 477         : LevelMeterBase(s, invalidator(*this))
 478 {
 479         set_spacing(1);
 480         show();
 481 }
 482
 483
 484 LevelMeterHBox::~LevelMeterHBox() {}
 485
 486 void
 487 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 488         pack_end (w, false, false);
 489 }
 490
 491 void
 492 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 493         remove (w);
 494 }
 495
 496
 497 LevelMeterVBox::LevelMeterVBox(Session* s)
 498         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 499 {
 500         set_spacing(1);
 501         show();
 502 }
 503 LevelMeterVBox::~LevelMeterVBox() {}
 504
 505 void
 506 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 507         pack_end (w, false, false);
 508 }
 509
 510 void
 511 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 512         remove (w);
 513 }