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 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         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  70                 delete (*i).meter;
  71         }
  72 }
  73
  74 void
  75 LevelMeterBase::set_meter (PeakMeter* meter)
  76 {
  77         _configuration_connection.disconnect();
  78         _meter_type_connection.disconnect();
  79
  80         _meter = meter;
  81
  82         if (_meter) {
  83                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  84                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  85         }
  86 }
  87
  88 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  89         switch (lul) {
  90                 case MeteringLineUp24:
  91                         return offset + 6.0;
  92                 case MeteringLineUp20:
  93                         return offset + 2.0;
  94                 case MeteringLineUp18:
  95                         return offset;
  96                 case MeteringLineUp15:
  97                         return offset - 3.0;
  98                 default:
  99                         break;
 100         }
 101         return offset;
 102 }
 103
 104 static float meter_lineup(float offset) {
 105         return meter_lineup_cfg(Config->get_meter_line_up_level(), offset);
 106 }
 107
 108 static float vu_standard() {
 109         // note - default meter config is +2dB (france)
 110         switch (Config->get_meter_vu_standard()) {
 111                 default:
 112                 case MeteringVUfrench:   // 0VU = -2dBu
 113                         return 0;
 114                 case MeteringVUamerican: // 0VU =  0dBu
 115                         return -2;
 116                 case MeteringVUstandard: // 0VU = +4dBu
 117                         return -6;
 118                 case MeteringVUeight:    // 0VU = +8dBu
 119                         return -10;
 120         }
 121 }
 122
 123 float
 124 LevelMeterBase::update_meters ()
 125 {
 126         vector<MeterInfo>::iterator i;
 127         uint32_t n;
 128
 129         if (!_meter) {
 130                 return 0.0f;
 131         }
 132
 133         uint32_t nmidi = _meter->input_streams().n_midi();
 134
 135         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 136                 if ((*i).packed) {
 137                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 138                         if (mpeak > (*i).max_peak) {
 139                                 (*i).max_peak = mpeak;
 140                                 (*i).meter->set_highlight(mpeak >= Config->get_meter_peak());
 141                         }
 142                         if (mpeak > max_peak) {
 143                                 max_peak = mpeak;
 144                         }
 145
 146                         if (n < nmidi) {
 147                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 148                         } else {
 149                                 const float peak = _meter->meter_level (n, meter_type);
 150                                 if (meter_type == MeterPeak) {
 151                                         (*i).meter->set (log_meter (peak));
 152                                 } else if (meter_type == MeterIEC1NOR) {
 153                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 154                                 } else if (meter_type == MeterIEC1DIN) {
 155                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(Config->get_meter_line_up_din(), 3.0)));
 156                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 157                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 158                                 } else if (meter_type == MeterVU) {
 159                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 160                                 } else if (meter_type == MeterK14) {
 161                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 162                                 } else if (meter_type == MeterK20) {
 163                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 164                                 } else { // RMS
 165                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 166                                 }
 167                         }
 168                 }
 169         }
 170         return max_peak;
 171 }
 172
 173 void
 174 LevelMeterBase::parameter_changed (string p)
 175 {
 176         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 177
 178         if (p == "meter-hold") {
 179                 vector<MeterInfo>::iterator i;
 180                 uint32_t n;
 181
 182                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 183                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 184                 }
 185         }
 186         else if (p == "meter-line-up-level") {
 187                 color_changed = true;
 188                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 189         }
 190         else if (p == "meter-style-led") {
 191                 color_changed = true;
 192                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 193         }
 194         else if (p == "meter-peak") {
 195                 vector<MeterInfo>::iterator i;
 196                 uint32_t n;
 197
 198                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 199                         (*i).max_peak = minus_infinity();
 200                 }
 201         }
 202 }
 203
 204 void
 205 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 206 {
 207         color_changed = true;
 208         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 209 }
 210
 211 void
 212 LevelMeterBase::meter_type_changed (MeterType t)
 213 {
 214         meter_type = t;
 215         color_changed = true;
 216         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 217         MeterTypeChanged(t);
 218 }
 219
 220 void
 221 LevelMeterBase::hide_all_meters ()
 222 {
 223         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 224                 if ((*i).packed) {
 225                         mtr_remove (*((*i).meter));
 226                         (*i).packed = false;
 227                 }
 228         }
 229 }
 230
 231 void
 232 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 233 {
 234         hide_all_meters ();
 235
 236         if (!_meter) {
 237                 return; /* do it later or never */
 238         }
 239
 240         int32_t nmidi = _meter->input_streams().n_midi();
 241         uint32_t nmeters = _meter->input_streams().n_total();
 242         regular_meter_width = initial_width;
 243         thin_meter_width = thin_width;
 244         meter_length = len;
 245
 246         guint16 width;
 247
 248         if (nmeters == 0) {
 249                 return;
 250         }
 251
 252         if (nmeters <= 2) {
 253                 width = regular_meter_width;
 254         } else {
 255                 width = thin_meter_width;
 256         }
 257
 258         while (meters.size() < nmeters) {
 259                 meters.push_back (MeterInfo());
 260         }
 261
 262         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 263
 264         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 265                 uint32_t c[10];
 266                 uint32_t b[4];
 267                 float stp[4];
 268                 int styleflags = Config->get_meter_style_led() ? 3 : 1;
 269                 b[0] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundBot();
 270                 b[1] = ARDOUR_UI::config()->get_canvasvar_MeterBackgroundTop();
 271                 b[2] = 0x991122ff; // red highlight gradient Bot
 272                 b[3] = 0x551111ff; // red highlight gradient Top
 273                 if (n < nmidi) {
 274                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 275                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 276                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 277                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 278                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 279                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 280                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 281                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 282                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 283                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 284                         stp[0] = 115.0 *  32.0 / 128.0;
 285                         stp[1] = 115.0 *  64.0 / 128.0;
 286                         stp[2] = 115.0 * 100.0 / 128.0;
 287                         stp[3] = 115.0 * 112.0 / 128.0;
 288                 } else {
 289                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 290                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 291                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 292                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 293                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 294                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 295                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 296                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 297                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 298                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 299
 300                         switch (meter_type) {
 301                                 case MeterK20:
 302                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 303                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 304                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 305                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 306                                         c[0] = c[1] = 0x008800ff;
 307                                         c[2] = c[3] = 0x00ff00ff;
 308                                         c[4] = c[5] = 0xffff00ff;
 309                                         c[6] = c[7] = 0xffff00ff;
 310                                         c[8] = c[9] = 0xff0000ff;
 311                                         break;
 312                                 case MeterK14:
 313                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 314                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 315                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 316                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 317                                         c[0] = c[1] = 0x008800ff;
 318                                         c[2] = c[3] = 0x00ff00ff;
 319                                         c[4] = c[5] = 0xffff00ff;
 320                                         c[6] = c[7] = 0xffff00ff;
 321                                         c[8] = c[9] = 0xff0000ff;
 322                                         break;
 323                                 case MeterIEC2BBC:
 324                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 325                                                 ARDOUR_UI::config()->color_by_name ("meter color BBC");
 326                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 327                                         break;
 328                                 case MeterIEC2EBU:
 329                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 330                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 331                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 332                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 333                                         c[3] = c[2] = c[1];
 334                                         c[6] = c[7] = c[8] = c[9];
 335                                         break;
 336                                 case MeterIEC1NOR:
 337                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 338                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 339                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 340                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 341                                         //c[2] = c[3] = c[1]; // dark-green
 342                                         c[0] = c[1] = c[2]; // bright-green
 343                                         c[6] = c[7] = c[8] = c[9];
 344                                         break;
 345                                 case MeterIEC1DIN:
 346                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 347                                         stp[1] = 115.0 * meter_deflect_din(-18);
 348                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 349                                         stp[3] = 115.0 * meter_deflect_din( -9);
 350                                         c[0] = c[1] = c[2] = c[3] = 0x00aa00ff;
 351                                         c[4] = c[6];
 352                                         c[5] = c[7];
 353                                         break;
 354                                 case MeterVU:
 355                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 356                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 357                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 358                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 359                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = 0x00aa00ff;
 360                                         c[6] = c[7] = c[8] = c[9] = 0xff8800ff;
 361                                         break;
 362                                 default: // PEAK, RMS
 363                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 364                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 365                                         stp[3] = 100.0; // 115 * log_meter(0)
 366                                 switch (Config->get_meter_line_up_level()) {
 367                                         case MeteringLineUp24:
 368                                                 stp[0] = 42.0;
 369                                                 break;
 370                                         case MeteringLineUp20:
 371                                                 stp[0] = 50.0;
 372                                                 break;
 373                                         default:
 374                                         case MeteringLineUp18:
 375                                                 stp[0] = 55.0;
 376                                                 break;
 377                                         case MeteringLineUp15:
 378                                                 stp[0] = 62.5;
 379                                                 break;
 380                                 }
 381                         }
 382                 }
 383                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 384                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 385                         meters[n].packed = false;
 386                         delete meters[n].meter;
 387                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 388                                         c[0], c[1], c[2], c[3], c[4],
 389                                         c[5], c[6], c[7], c[8], c[9],
 390                                         b[0], b[1], b[2], b[3],
 391                                         stp[0], stp[1], stp[2], stp[3],
 392                                         styleflags
 393                                         );
 394                         meters[n].meter->set_highlight(hl);
 395                         meters[n].width = width;
 396                         meters[n].length = len;
 397                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 398                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press));
 399                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release));
 400                 }
 401
 402                 //pack_end (*meters[n].meter, false, false);
 403                 mtr_pack (*meters[n].meter);
 404                 meters[n].meter->show_all ();
 405                 meters[n].packed = true;
 406         }
 407         //show();
 408         color_changed = false;
 409         visible_meter_type = meter_type;
 410 }
 411
 412 void
 413 LevelMeterBase::set_type(MeterType t)
 414 {
 415         meter_type = t;
 416         _meter->set_type(t);
 417 }
 418
 419 bool
 420 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 421 {
 422         return ButtonPress (ev); /* EMIT SIGNAL */
 423 }
 424
 425 bool
 426 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 427 {
 428         if (ev->button == 1) {
 429                 clear_meters (false);
 430         }
 431         ButtonRelease(ev);
 432
 433         return true;
 434 }
 435
 436
 437 void LevelMeterBase::clear_meters (bool reset_highlight)
 438 {
 439         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 440                 (*i).meter->clear();
 441                 (*i).max_peak = minus_infinity();
 442                 if (reset_highlight)
 443                         (*i).meter->set_highlight(false);
 444         }
 445         max_peak = minus_infinity();
 446 }
 447
 448 void LevelMeterBase::hide_meters ()
 449 {
 450         hide_all_meters();
 451 }
 452
 453 void
 454 LevelMeterBase::color_handler ()
 455 {
 456         color_changed = true;
 457         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 458 }
 459
 460 LevelMeterHBox::LevelMeterHBox(Session* s)
 461         : LevelMeterBase(s, invalidator(*this))
 462 {
 463         set_spacing(1);
 464         show();
 465 }
 466
 467
 468 LevelMeterHBox::~LevelMeterHBox() {}
 469
 470 void
 471 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 472         pack_end (w, false, false);
 473 }
 474
 475 void
 476 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 477         remove (w);
 478 }
 479
 480
 481 LevelMeterVBox::LevelMeterVBox(Session* s)
 482         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 483 {
 484         set_spacing(1);
 485         show();
 486 }
 487 LevelMeterVBox::~LevelMeterVBox() {}
 488
 489 void
 490 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 491         pack_end (w, false, false);
 492 }
 493
 494 void
 495 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 496         remove (w);
 497 }