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         , max_peak (minus_infinity())
  53         , meter_type (MeterPeak)
  54         , color_changed (false)
  55 {
  56         set_session (s);
  57
  58         Config->ParameterChanged.connect (_parameter_connection, parent_invalidator, boost::bind (&LevelMeterBase::parameter_changed, this, _1), gui_context());
  59         ARDOUR_UI::config()->ParameterChanged.connect (sigc::mem_fun(*this, &LevelMeterBase::parameter_changed));
  60         ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeterBase::color_handler));
  61 }
  62
  63 LevelMeterBase::~LevelMeterBase ()
  64 {
  65         _configuration_connection.disconnect();
  66         _meter_type_connection.disconnect();
  67         _parameter_connection.disconnect();
  68         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  69                 delete (*i).meter;
  70         }
  71         meters.clear();
  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         color_changed = true;
  82
  83         if (_meter) {
  84                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  85                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  86         }
  87 }
  88
  89 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  90         switch (lul) {
  91                 case MeteringLineUp24:
  92                         return offset + 6.0;
  93                 case MeteringLineUp20:
  94                         return offset + 2.0;
  95                 case MeteringLineUp18:
  96                         return offset;
  97                 case MeteringLineUp15:
  98                         return offset - 3.0;
  99                 default:
 100                         break;
 101         }
 102         return offset;
 103 }
 104
 105 static float meter_lineup(float offset) {
 106         return meter_lineup_cfg (ARDOUR_UI::config()->get_meter_line_up_level(), offset);
 107 }
 108
 109 static float vu_standard() {
 110         // note - default meter config is +2dB (france)
 111         switch (ARDOUR_UI::config()->get_meter_vu_standard()) {
 112                 default:
 113                 case MeteringVUfrench:   // 0VU = -2dBu
 114                         return 0;
 115                 case MeteringVUamerican: // 0VU =  0dBu
 116                         return -2;
 117                 case MeteringVUstandard: // 0VU = +4dBu
 118                         return -6;
 119                 case MeteringVUeight:    // 0VU = +8dBu
 120                         return -10;
 121         }
 122 }
 123
 124 float
 125 LevelMeterBase::update_meters ()
 126 {
 127         vector<MeterInfo>::iterator i;
 128         uint32_t n;
 129
 130         if (!_meter) {
 131                 return 0.0f;
 132         }
 133
 134         uint32_t nmidi = _meter->input_streams().n_midi();
 135
 136         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 137                 if ((*i).packed) {
 138                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 139                         if (mpeak > (*i).max_peak) {
 140                                 (*i).max_peak = mpeak;
 141                                 (*i).meter->set_highlight(mpeak >= ARDOUR_UI::config()->get_meter_peak());
 142                         }
 143                         if (mpeak > max_peak) {
 144                                 max_peak = mpeak;
 145                         }
 146
 147                         if (n < nmidi) {
 148                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 149                         } else {
 150                                 const float peak = _meter->meter_level (n, meter_type);
 151                                 if (meter_type == MeterPeak) {
 152                                         (*i).meter->set (log_meter (peak));
 153                                 } else if (meter_type == MeterIEC1NOR) {
 154                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 155                                 } else if (meter_type == MeterIEC1DIN) {
 156                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(ARDOUR_UI::config()->get_meter_line_up_din(), 3.0)));
 157                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 158                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 159                                 } else if (meter_type == MeterVU) {
 160                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 161                                 } else if (meter_type == MeterK12) {
 162                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 163                                 } else if (meter_type == MeterK14) {
 164                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 165                                 } else if (meter_type == MeterK20) {
 166                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 167                                 } else { // RMS
 168                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 169                                 }
 170                         }
 171                 }
 172         }
 173         return max_peak;
 174 }
 175
 176 void
 177 LevelMeterBase::parameter_changed (string p)
 178 {
 179         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 180
 181         if (p == "meter-hold") {
 182                 vector<MeterInfo>::iterator i;
 183                 uint32_t n;
 184
 185                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 186                         (*i).meter->set_hold_count ((uint32_t) floor(ARDOUR_UI::config()->get_meter_hold()));
 187                 }
 188         }
 189         else if (p == "meter-line-up-level") {
 190                 color_changed = true;
 191                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 192         }
 193         else if (p == "meter-style-led") {
 194                 color_changed = true;
 195                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 196         }
 197         else if (p == "meter-peak") {
 198                 vector<MeterInfo>::iterator i;
 199                 uint32_t n;
 200
 201                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 202                         (*i).max_peak = minus_infinity();
 203                 }
 204         }
 205 }
 206
 207 void
 208 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 209 {
 210         color_changed = true;
 211         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 212 }
 213
 214 void
 215 LevelMeterBase::meter_type_changed (MeterType t)
 216 {
 217         meter_type = t;
 218         color_changed = true;
 219         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 220         MeterTypeChanged(t);
 221 }
 222
 223 void
 224 LevelMeterBase::hide_all_meters ()
 225 {
 226         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 227                 if ((*i).packed) {
 228                         mtr_remove (*((*i).meter));
 229                         (*i).packed = false;
 230                 }
 231         }
 232 }
 233
 234 void
 235 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 236 {
 237         hide_all_meters ();
 238
 239         if (!_meter) {
 240                 return; /* do it later or never */
 241         }
 242
 243         int32_t nmidi = _meter->input_streams().n_midi();
 244         uint32_t nmeters = _meter->input_streams().n_total();
 245         regular_meter_width = initial_width;
 246         thin_meter_width = thin_width;
 247         meter_length = len;
 248
 249         guint16 width;
 250
 251         if (nmeters == 0) {
 252                 return;
 253         }
 254
 255         if (nmeters <= 2) {
 256                 width = regular_meter_width;
 257         } else {
 258                 width = thin_meter_width;
 259         }
 260
 261         width = rint (width * ARDOUR_UI::config()->get_font_scale() / 102400.);
 262
 263         while (meters.size() < nmeters) {
 264                 meters.push_back (MeterInfo());
 265         }
 266
 267         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 268
 269         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 270                 uint32_t c[10];
 271                 uint32_t b[4];
 272                 float stp[4];
 273                 int styleflags = ARDOUR_UI::config()->get_meter_style_led() ? 3 : 1;
 274                 b[0] = ARDOUR_UI::config()->color ("meter background bottom");
 275                 b[1] = ARDOUR_UI::config()->color ("meter background top");
 276                 b[2] = 0x991122ff; // red highlight gradient Bot
 277                 b[3] = 0x551111ff; // red highlight gradient Top
 278                 if (n < nmidi) {
 279                         c[0] = ARDOUR_UI::config()->color ("midi meter color0");
 280                         c[1] = ARDOUR_UI::config()->color ("midi meter color1");
 281                         c[2] = ARDOUR_UI::config()->color ("midi meter color2");
 282                         c[3] = ARDOUR_UI::config()->color ("midi meter color3");
 283                         c[4] = ARDOUR_UI::config()->color ("midi meter color4");
 284                         c[5] = ARDOUR_UI::config()->color ("midi meter color5");
 285                         c[6] = ARDOUR_UI::config()->color ("midi meter color6");
 286                         c[7] = ARDOUR_UI::config()->color ("midi meter color7");
 287                         c[8] = ARDOUR_UI::config()->color ("midi meter color8");
 288                         c[9] = ARDOUR_UI::config()->color ("midi meter color9");
 289                         stp[0] = 115.0 *  32.0 / 128.0;
 290                         stp[1] = 115.0 *  64.0 / 128.0;
 291                         stp[2] = 115.0 * 100.0 / 128.0;
 292                         stp[3] = 115.0 * 112.0 / 128.0;
 293                 } else {
 294                         c[0] = ARDOUR_UI::config()->color ("meter color0");
 295                         c[1] = ARDOUR_UI::config()->color ("meter color1");
 296                         c[2] = ARDOUR_UI::config()->color ("meter color2");
 297                         c[3] = ARDOUR_UI::config()->color ("meter color3");
 298                         c[4] = ARDOUR_UI::config()->color ("meter color4");
 299                         c[5] = ARDOUR_UI::config()->color ("meter color5");
 300                         c[6] = ARDOUR_UI::config()->color ("meter color6");
 301                         c[7] = ARDOUR_UI::config()->color ("meter color7");
 302                         c[8] = ARDOUR_UI::config()->color ("meter color8");
 303                         c[9] = ARDOUR_UI::config()->color ("meter color9");
 304
 305                         switch (meter_type) {
 306                                 case MeterK20:
 307                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 308                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 309                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 310                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 311                                         c[0] = c[1] = 0x008800ff;
 312                                         c[2] = c[3] = 0x00ff00ff;
 313                                         c[4] = c[5] = 0xffff00ff;
 314                                         c[6] = c[7] = 0xffff00ff;
 315                                         c[8] = c[9] = 0xff0000ff;
 316                                         break;
 317                                 case MeterK14:
 318                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 319                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 320                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 321                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 322                                         c[0] = c[1] = 0x008800ff;
 323                                         c[2] = c[3] = 0x00ff00ff;
 324                                         c[4] = c[5] = 0xffff00ff;
 325                                         c[6] = c[7] = 0xffff00ff;
 326                                         c[8] = c[9] = 0xff0000ff;
 327                                         break;
 328                                 case MeterK12:
 329                                         stp[0] = 115.0 * meter_deflect_k(-32, 12);  //-20
 330                                         stp[1] = 115.0 * meter_deflect_k(-12, 12);  //  0
 331                                         stp[2] = 115.0 * meter_deflect_k(-10, 12);  // +2
 332                                         stp[3] = 115.0 * meter_deflect_k( -8, 12);  // +4
 333                                         c[0] = c[1] = 0x008800ff;
 334                                         c[2] = c[3] = 0x00ff00ff;
 335                                         c[4] = c[5] = 0xffff00ff;
 336                                         c[6] = c[7] = 0xffff00ff;
 337                                         c[8] = c[9] = 0xff0000ff;
 338                                         break;
 339                                 case MeterIEC2BBC:
 340                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 341                                                 ARDOUR_UI::config()->color ("meter color BBC");
 342                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 343                                         break;
 344                                 case MeterIEC2EBU:
 345                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 346                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 347                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 348                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 349                                         c[3] = c[2] = c[1];
 350                                         c[6] = c[7] = c[8] = c[9];
 351                                         break;
 352                                 case MeterIEC1NOR:
 353                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 354                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 355                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 356                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 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[2] = c[3] = c[1];
 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[2] = c[3] = c[4] = c[5] = c[1];
 375                                         c[7] = c[8] = c[9] = c[6];
 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 (ARDOUR_UI::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 (ARDOUR_UI::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), false);
 414                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release), false);
 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 }