gtk2_ardour/level_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <limits.h>
  21
  22 #include "ardour/meter.h"
  23
  24 #include <gtkmm2ext/utils.h>
  25 #include <gtkmm2ext/barcontroller.h>
  26 #include "pbd/fastlog.h"
  27
  28 #include "ardour_ui.h"
  29 #include "global_signals.h"
  30 #include "level_meter.h"
  31 #include "utils.h"
  32 #include "logmeter.h"
  33 #include "gui_thread.h"
  34 #include "keyboard.h"
  35 #include "public_editor.h"
  36
  37 #include "i18n.h"
  38
  39 using namespace ARDOUR;
  40 using namespace ARDOUR_UI_UTILS;
  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         color_changed = true;
  83
  84         if (_meter) {
  85                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  86                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  87         }
  88 }
  89
  90 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  91         switch (lul) {
  92                 case MeteringLineUp24:
  93                         return offset + 6.0;
  94                 case MeteringLineUp20:
  95                         return offset + 2.0;
  96                 case MeteringLineUp18:
  97                         return offset;
  98                 case MeteringLineUp15:
  99                         return offset - 3.0;
 100                 default:
 101                         break;
 102         }
 103         return offset;
 104 }
 105
 106 static float meter_lineup(float offset) {
 107         return meter_lineup_cfg(Config->get_meter_line_up_level(), offset);
 108 }
 109
 110 static float vu_standard() {
 111         // note - default meter config is +2dB (france)
 112         switch (Config->get_meter_vu_standard()) {
 113                 default:
 114                 case MeteringVUfrench:   // 0VU = -2dBu
 115                         return 0;
 116                 case MeteringVUamerican: // 0VU =  0dBu
 117                         return -2;
 118                 case MeteringVUstandard: // 0VU = +4dBu
 119                         return -6;
 120                 case MeteringVUeight:    // 0VU = +8dBu
 121                         return -10;
 122         }
 123 }
 124
 125 float
 126 LevelMeterBase::update_meters ()
 127 {
 128         vector<MeterInfo>::iterator i;
 129         uint32_t n;
 130
 131         if (!_meter) {
 132                 return 0.0f;
 133         }
 134
 135         uint32_t nmidi = _meter->input_streams().n_midi();
 136
 137         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 138                 if ((*i).packed) {
 139                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 140                         if (mpeak > (*i).max_peak) {
 141                                 (*i).max_peak = mpeak;
 142                                 (*i).meter->set_highlight(mpeak >= Config->get_meter_peak());
 143                         }
 144                         if (mpeak > max_peak) {
 145                                 max_peak = mpeak;
 146                         }
 147
 148                         if (n < nmidi) {
 149                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 150                         } else {
 151                                 const float peak = _meter->meter_level (n, meter_type);
 152                                 if (meter_type == MeterPeak) {
 153                                         (*i).meter->set (log_meter (peak));
 154                                 } else if (meter_type == MeterIEC1NOR) {
 155                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 156                                 } else if (meter_type == MeterIEC1DIN) {
 157                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(Config->get_meter_line_up_din(), 3.0)));
 158                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 159                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 160                                 } else if (meter_type == MeterVU) {
 161                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 162                                 } else if (meter_type == MeterK12) {
 163                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 164                                 } else if (meter_type == MeterK14) {
 165                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 166                                 } else if (meter_type == MeterK20) {
 167                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 168                                 } else { // RMS
 169                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 170                                 }
 171                         }
 172                 }
 173         }
 174         return max_peak;
 175 }
 176
 177 void
 178 LevelMeterBase::parameter_changed (string p)
 179 {
 180         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 181
 182         if (p == "meter-hold") {
 183                 vector<MeterInfo>::iterator i;
 184                 uint32_t n;
 185
 186                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 187                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 188                 }
 189         }
 190         else if (p == "meter-line-up-level") {
 191                 color_changed = true;
 192                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 193         }
 194         else if (p == "meter-style-led") {
 195                 color_changed = true;
 196                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 197         }
 198         else if (p == "meter-peak") {
 199                 vector<MeterInfo>::iterator i;
 200                 uint32_t n;
 201
 202                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 203                         (*i).max_peak = minus_infinity();
 204                 }
 205         }
 206 }
 207
 208 void
 209 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 210 {
 211         color_changed = true;
 212         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 213 }
 214
 215 void
 216 LevelMeterBase::meter_type_changed (MeterType t)
 217 {
 218         meter_type = t;
 219         color_changed = true;
 220         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 221         MeterTypeChanged(t);
 222 }
 223
 224 void
 225 LevelMeterBase::hide_all_meters ()
 226 {
 227         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 228                 if ((*i).packed) {
 229                         mtr_remove (*((*i).meter));
 230                         (*i).packed = false;
 231                 }
 232         }
 233 }
 234
 235 void
 236 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 237 {
 238         hide_all_meters ();
 239
 240         if (!_meter) {
 241                 return; /* do it later or never */
 242         }
 243
 244         int32_t nmidi = _meter->input_streams().n_midi();
 245         uint32_t nmeters = _meter->input_streams().n_total();
 246         regular_meter_width = initial_width;
 247         thin_meter_width = thin_width;
 248         meter_length = len;
 249
 250         guint16 width;
 251
 252         if (nmeters == 0) {
 253                 return;
 254         }
 255
 256         if (nmeters <= 2) {
 257                 width = regular_meter_width;
 258         } else {
 259                 width = thin_meter_width;
 260         }
 261
 262         while (meters.size() < nmeters) {
 263                 meters.push_back (MeterInfo());
 264         }
 265
 266         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 267
 268         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 269                 uint32_t c[10];
 270                 uint32_t b[4];
 271                 float stp[4];
 272                 int styleflags = Config->get_meter_style_led() ? 3 : 1;
 273                 b[0] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundBot();
 274                 b[1] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundTop();
 275                 b[2] = 0x991122ff; // red highlight gradient Bot
 276                 b[3] = 0x551111ff; // red highlight gradient Top
 277                 if (n < nmidi) {
 278                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 279                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 280                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 281                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 282                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 283                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 284                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 285                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 286                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 287                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 288                         stp[0] = 115.0 *  32.0 / 128.0;
 289                         stp[1] = 115.0 *  64.0 / 128.0;
 290                         stp[2] = 115.0 * 100.0 / 128.0;
 291                         stp[3] = 115.0 * 112.0 / 128.0;
 292                 } else {
 293                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 294                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 295                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 296                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 297                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 298                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 299                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 300                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 301                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 302                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 303
 304                         switch (meter_type) {
 305                                 case MeterK20:
 306                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 307                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 308                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 309                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 310                                         c[0] = c[1] = 0x008800ff;
 311                                         c[2] = c[3] = 0x00ff00ff;
 312                                         c[4] = c[5] = 0xffff00ff;
 313                                         c[6] = c[7] = 0xffff00ff;
 314                                         c[8] = c[9] = 0xff0000ff;
 315                                         break;
 316                                 case MeterK14:
 317                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 318                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 319                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 320                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 321                                         c[0] = c[1] = 0x008800ff;
 322                                         c[2] = c[3] = 0x00ff00ff;
 323                                         c[4] = c[5] = 0xffff00ff;
 324                                         c[6] = c[7] = 0xffff00ff;
 325                                         c[8] = c[9] = 0xff0000ff;
 326                                         break;
 327                                 case MeterK12:
 328                                         stp[0] = 115.0 * meter_deflect_k(-32, 12);  //-20
 329                                         stp[1] = 115.0 * meter_deflect_k(-12, 12);  //  0
 330                                         stp[2] = 115.0 * meter_deflect_k(-10, 12);  // +2
 331                                         stp[3] = 115.0 * meter_deflect_k( -8, 12);  // +4
 332                                         c[0] = c[1] = 0x008800ff;
 333                                         c[2] = c[3] = 0x00ff00ff;
 334                                         c[4] = c[5] = 0xffff00ff;
 335                                         c[6] = c[7] = 0xffff00ff;
 336                                         c[8] = c[9] = 0xff0000ff;
 337                                         break;
 338                                 case MeterIEC2BBC:
 339                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 340                                                 ARDOUR_UI::config()->color_by_name ("meter color BBC");
 341                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 342                                         break;
 343                                 case MeterIEC2EBU:
 344                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 345                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 346                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 347                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 348                                         c[3] = c[2] = c[1];
 349                                         c[6] = c[7] = c[8] = c[9];
 350                                         break;
 351                                 case MeterIEC1NOR:
 352                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 353                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 354                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 355                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 356                                         //c[2] = c[3] = c[1]; // dark-green
 357                                         c[0] = c[1] = c[2]; // bright-green
 358                                         c[6] = c[7] = c[8] = c[9];
 359                                         break;
 360                                 case MeterIEC1DIN:
 361                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 362                                         stp[1] = 115.0 * meter_deflect_din(-18);
 363                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 364                                         stp[3] = 115.0 * meter_deflect_din( -9);
 365                                         c[0] = c[1] = c[2] = c[3] = 0x00aa00ff;
 366                                         c[4] = c[6];
 367                                         c[5] = c[7];
 368                                         break;
 369                                 case MeterVU:
 370                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 371                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 372                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 373                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 374                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = 0x00aa00ff;
 375                                         c[6] = c[7] = c[8] = c[9] = 0xff8800ff;
 376                                         break;
 377                                 default: // PEAK, RMS
 378                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 379                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 380                                         stp[3] = 100.0; // 115 * log_meter(0)
 381                                 switch (Config->get_meter_line_up_level()) {
 382                                         case MeteringLineUp24:
 383                                                 stp[0] = 42.0;
 384                                                 break;
 385                                         case MeteringLineUp20:
 386                                                 stp[0] = 50.0;
 387                                                 break;
 388                                         default:
 389                                         case MeteringLineUp18:
 390                                                 stp[0] = 55.0;
 391                                                 break;
 392                                         case MeteringLineUp15:
 393                                                 stp[0] = 62.5;
 394                                                 break;
 395                                 }
 396                         }
 397                 }
 398                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 399                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 400                         meters[n].packed = false;
 401                         delete meters[n].meter;
 402                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 403                                         c[0], c[1], c[2], c[3], c[4],
 404                                         c[5], c[6], c[7], c[8], c[9],
 405                                         b[0], b[1], b[2], b[3],
 406                                         stp[0], stp[1], stp[2], stp[3],
 407                                         styleflags
 408                                         );
 409                         meters[n].meter->set_highlight(hl);
 410                         meters[n].width = width;
 411                         meters[n].length = len;
 412                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 413                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press));
 414                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release));
 415                 }
 416
 417                 //pack_end (*meters[n].meter, false, false);
 418                 mtr_pack (*meters[n].meter);
 419                 meters[n].meter->show_all ();
 420                 meters[n].packed = true;
 421         }
 422         //show();
 423         color_changed = false;
 424         visible_meter_type = meter_type;
 425 }
 426
 427 void
 428 LevelMeterBase::set_type(MeterType t)
 429 {
 430         meter_type = t;
 431         _meter->set_type(t);
 432 }
 433
 434 bool
 435 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 436 {
 437         return ButtonPress (ev); /* EMIT SIGNAL */
 438 }
 439
 440 bool
 441 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 442 {
 443         if (ev->button == 1) {
 444                 clear_meters (false);
 445         }
 446         ButtonRelease(ev);
 447
 448         return true;
 449 }
 450
 451
 452 void LevelMeterBase::clear_meters (bool reset_highlight)
 453 {
 454         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 455                 (*i).meter->clear();
 456                 (*i).max_peak = minus_infinity();
 457                 if (reset_highlight)
 458                         (*i).meter->set_highlight(false);
 459         }
 460         max_peak = minus_infinity();
 461 }
 462
 463 void LevelMeterBase::hide_meters ()
 464 {
 465         hide_all_meters();
 466 }
 467
 468 void
 469 LevelMeterBase::color_handler ()
 470 {
 471         color_changed = true;
 472         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 473 }
 474
 475 LevelMeterHBox::LevelMeterHBox(Session* s)
 476         : LevelMeterBase(s, invalidator(*this))
 477 {
 478         set_spacing(1);
 479         show();
 480 }
 481
 482
 483 LevelMeterHBox::~LevelMeterHBox() {}
 484
 485 void
 486 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 487         pack_end (w, false, false);
 488 }
 489
 490 void
 491 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 492         remove (w);
 493 }
 494
 495
 496 LevelMeterVBox::LevelMeterVBox(Session* s)
 497         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 498 {
 499         set_spacing(1);
 500         show();
 501 }
 502 LevelMeterVBox::~LevelMeterVBox() {}
 503
 504 void
 505 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 506         pack_end (w, false, false);
 507 }
 508
 509 void
 510 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 511         remove (w);
 512 }