gtk2_ardour/level_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <limits.h>
  21
  22 #include "ardour/meter.h"
  23
  24 #include <gtkmm2ext/utils.h>
  25 #include <gtkmm2ext/barcontroller.h>
  26 #include "midi++/manager.h"
  27 #include "pbd/fastlog.h"
  28
  29 #include "ardour_ui.h"
  30 #include "global_signals.h"
  31 #include "level_meter.h"
  32 #include "utils.h"
  33 #include "logmeter.h"
  34 #include "gui_thread.h"
  35 #include "keyboard.h"
  36 #include "public_editor.h"
  37
  38 #include "i18n.h"
  39
  40 using namespace ARDOUR;
  41 using namespace PBD;
  42 using namespace Gtkmm2ext;
  43 using namespace Gtk;
  44 using namespace std;
  45
  46 LevelMeterBase::LevelMeterBase (Session* s, FastMeter::Orientation o)
  47         : _meter (0)
  48         , _meter_orientation(o)
  49         , meter_length (0)
  50         , thin_meter_width(2)
  51 {
  52         set_session (s);
  53         //set_spacing (1);
  54         Config->ParameterChanged.connect (_parameter_connection, invalidator (*this), 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, invalidator (*this), boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  84                 _meter->TypeChanged.connect (_meter_type_connection, invalidator (*this), boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  85         }
  86 }
  87
  88 static float meter_lineup(float offset) {
  89         switch (Config->get_meter_line_up_level()) {
  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 vu_standard() {
 105         // note - default meter config is +2dB (france)
 106         switch (Config->get_meter_vu_standard()) {
 107                 default:
 108                 case MeteringVUfrench:   // 0VU = -2dBu
 109                         return 0;
 110                 case MeteringVUamerican: // 0VU =  0dBu
 111                         return -2;
 112                 case MeteringVUstandard: // 0VU = +4dBu
 113                         return -6;
 114                 case MeteringVUeight:    // 0VU = +8dBu
 115                         return -10;
 116         }
 117 }
 118
 119 float
 120 LevelMeterBase::update_meters ()
 121 {
 122         vector<MeterInfo>::iterator i;
 123         uint32_t n;
 124
 125         if (!_meter) {
 126                 return 0.0f;
 127         }
 128
 129         uint32_t nmidi = _meter->input_streams().n_midi();
 130
 131         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 132                 if ((*i).packed) {
 133                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 134                         if (mpeak > (*i).max_peak) {
 135                                 (*i).max_peak = mpeak;
 136                                 (*i).meter->set_highlight(mpeak > Config->get_meter_peak());
 137                         }
 138                         if (mpeak > max_peak) {
 139                                 max_peak = mpeak;
 140                         }
 141
 142                         if (n < nmidi) {
 143                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 144                         } else {
 145                                 const float peak = _meter->meter_level (n, meter_type);
 146                                 if (meter_type == MeterPeak) {
 147                                         (*i).meter->set (log_meter (peak));
 148                                 } else if (meter_type == MeterIEC1NOR) {
 149                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 150                                 } else if (meter_type == MeterIEC1DIN) {
 151                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup(3.0)));
 152                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 153                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 154                                 } else if (meter_type == MeterVU) {
 155                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 156                                 } else if (meter_type == MeterK14) {
 157                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 158                                 } else if (meter_type == MeterK20) {
 159                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 160                                 } else { // RMS
 161                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 162                                 }
 163                         }
 164                 }
 165         }
 166         return max_peak;
 167 }
 168
 169 void
 170 LevelMeterBase::parameter_changed (string p)
 171 {
 172         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 173
 174         if (p == "meter-hold") {
 175                 vector<MeterInfo>::iterator i;
 176                 uint32_t n;
 177
 178                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 179                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 180                 }
 181         }
 182         else if (p == "meter-line-up-level") {
 183                 color_changed = true;
 184                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 185         }
 186         else if (p == "meter-peak") {
 187                 vector<MeterInfo>::iterator i;
 188                 uint32_t n;
 189
 190                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 191                         (*i).max_peak = minus_infinity();
 192                 }
 193         }
 194 }
 195
 196 void
 197 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 198 {
 199         color_changed = true;
 200         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 201 }
 202
 203 void
 204 LevelMeterBase::meter_type_changed (MeterType t)
 205 {
 206         meter_type = t;
 207         color_changed = true;
 208         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 209         MeterTypeChanged(t);
 210 }
 211
 212 void
 213 LevelMeterBase::hide_all_meters ()
 214 {
 215         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 216                 if ((*i).packed) {
 217                         mtr_remove (*((*i).meter));
 218                         (*i).packed = false;
 219                 }
 220         }
 221 }
 222
 223 void
 224 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 225 {
 226         hide_all_meters ();
 227
 228         if (!_meter) {
 229                 return; /* do it later or never */
 230         }
 231
 232         int32_t nmidi = _meter->input_streams().n_midi();
 233         uint32_t nmeters = _meter->input_streams().n_total();
 234         regular_meter_width = initial_width;
 235         thin_meter_width = thin_width;
 236         meter_length = len;
 237
 238         guint16 width;
 239
 240         if (nmeters == 0) {
 241                 return;
 242         }
 243
 244         if (nmeters <= 2) {
 245                 width = regular_meter_width;
 246         } else {
 247                 width = thin_meter_width;
 248         }
 249
 250         while (meters.size() < nmeters) {
 251                 meters.push_back (MeterInfo());
 252         }
 253
 254         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 255
 256         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 257                 uint32_t c[10];
 258                 uint32_t b[4];
 259                 float stp[4];
 260                 int styleflags = 3;
 261                 b[0] = ARDOUR_UI::config()->canvasvar_MeterBackgroundBot.get();
 262                 b[1] = ARDOUR_UI::config()->canvasvar_MeterBackgroundTop.get();
 263                 b[2] = 0x991122ff; // red highlight gradient Bot
 264                 b[3] = 0x551111ff; // red highlight gradient Top
 265                 if (n < nmidi) {
 266                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 267                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 268                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 269                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 270                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 271                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 272                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 273                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 274                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 275                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 276                         stp[0] = 115.0 *  32.0 / 128.0;
 277                         stp[1] = 115.0 *  64.0 / 128.0;
 278                         stp[2] = 115.0 * 100.0 / 128.0;
 279                         stp[3] = 115.0 * 112.0 / 128.0;
 280                 } else {
 281                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 282                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 283                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 284                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 285                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 286                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 287                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 288                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 289                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 290                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 291
 292                         switch (meter_type) {
 293                                 case MeterK20:
 294                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 295                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 296                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 297                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 298                                         c[0] = c[1] = 0x008800ff;
 299                                         c[2] = c[3] = 0x00ff00ff;
 300                                         c[4] = c[5] = 0xffff00ff;
 301                                         c[6] = c[7] = 0xffff00ff;
 302                                         c[8] = c[9] = 0xff0000ff;
 303                                         break;
 304                                 case MeterK14:
 305                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 306                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 307                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 308                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 309                                         c[0] = c[1] = 0x008800ff;
 310                                         c[2] = c[3] = 0x00ff00ff;
 311                                         c[4] = c[5] = 0xffff00ff;
 312                                         c[6] = c[7] = 0xffff00ff;
 313                                         c[8] = c[9] = 0xff0000ff;
 314                                         break;
 315                                 case MeterIEC2BBC:
 316                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] = 0xaaaaaaff;
 317                                         break;
 318                                 case MeterIEC2EBU:
 319                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 320                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 321                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 322                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 323                                         c[3] = c[2] = c[1];
 324                                         c[6] = c[7] = c[8] = c[9];
 325                                         break;
 326                                 case MeterIEC1NOR:
 327                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 328                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 329                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 330                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 331                                         c[1] = c[2] = c[3];
 332                                         c[6] = c[7] = c[8] = c[9];
 333                                         break;
 334                                 case MeterIEC1DIN:
 335                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 336                                         stp[1] = 115.0 * meter_deflect_din(-18);
 337                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 338                                         stp[3] = 115.0 * meter_deflect_din( -9);
 339                                         c[0] = c[1] = c[2] = c[3] = 0x00aa00ff;
 340                                         c[4] = c[6];
 341                                         c[5] = c[7];
 342                                         break;
 343                                 case MeterVU:
 344                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 345                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 346                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 347                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 348                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = 0x00aa00ff;
 349                                         c[6] = c[7] = c[8] = c[9] = 0xff8800ff;
 350                                         styleflags = 1;
 351                                         break;
 352                                 default: // PEAK, RMS
 353                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 354                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 355                                         stp[3] = 100.0; // 115 * log_meter(0)
 356                                 switch (Config->get_meter_line_up_level()) {
 357                                         case MeteringLineUp24:
 358                                                 stp[0] = 42.0;
 359                                                 break;
 360                                         case MeteringLineUp20:
 361                                                 stp[0] = 50.0;
 362                                                 break;
 363                                         default:
 364                                         case MeteringLineUp18:
 365                                                 stp[0] = 55.0;
 366                                                 break;
 367                                         case MeteringLineUp15:
 368                                                 stp[0] = 62.5;
 369                                                 break;
 370                                 }
 371                         }
 372                 }
 373                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 374                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 375                         delete meters[n].meter;
 376                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 377                                         c[0], c[1], c[2], c[3], c[4],
 378                                         c[5], c[6], c[7], c[8], c[9],
 379                                         b[0], b[1], b[2], b[3],
 380                                         stp[0], stp[1], stp[2], stp[3],
 381                                         styleflags
 382                                         );
 383                         meters[n].meter->set_highlight(hl);
 384                         meters[n].width = width;
 385                         meters[n].length = len;
 386                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 387                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press));
 388                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release));
 389                 }
 390
 391                 //pack_end (*meters[n].meter, false, false);
 392                 mtr_pack (*meters[n].meter);
 393                 meters[n].meter->show_all ();
 394                 meters[n].packed = true;
 395         }
 396         //show();
 397         color_changed = false;
 398         visible_meter_type = meter_type;
 399 }
 400
 401 void
 402 LevelMeterBase::set_type(MeterType t)
 403 {
 404         meter_type = t;
 405         _meter->set_type(t);
 406 }
 407
 408 bool
 409 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 410 {
 411         return ButtonPress (ev); /* EMIT SIGNAL */
 412 }
 413
 414 bool
 415 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 416 {
 417         if (ev->button == 1) {
 418                 clear_meters (false);
 419         }
 420
 421         return true;
 422 }
 423
 424
 425 void LevelMeterBase::clear_meters (bool reset_highlight)
 426 {
 427         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 428                 (*i).meter->clear();
 429                 (*i).max_peak = minus_infinity();
 430                 if (reset_highlight)
 431                         (*i).meter->set_highlight(false);
 432         }
 433         max_peak = minus_infinity();
 434 }
 435
 436 void LevelMeterBase::hide_meters ()
 437 {
 438         hide_all_meters();
 439 }
 440
 441 void
 442 LevelMeterBase::color_handler ()
 443 {
 444         color_changed = true;
 445 }
 446
 447 LevelMeterHBox::LevelMeterHBox(Session* s)
 448         : LevelMeterBase(s)
 449 {
 450         set_spacing(1);
 451         show();
 452 }
 453
 454
 455 LevelMeterHBox::~LevelMeterHBox() {}
 456
 457 void
 458 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 459         pack_end (w, false, false);
 460 }
 461
 462 void
 463 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 464         remove (w);
 465 }
 466
 467
 468 LevelMeterVBox::LevelMeterVBox(Session* s)
 469         : LevelMeterBase(s, FastMeter::Horizontal)
 470 {
 471         set_spacing(1);
 472         show();
 473 }
 474 LevelMeterVBox::~LevelMeterVBox() {}
 475
 476 void
 477 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 478         pack_end (w, false, false);
 479 }
 480
 481 void
 482 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 483         remove (w);
 484 }