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         , visible_meter_type (MeterType(0))
  55         , visible_meter_count (0)
  56         , color_changed (false)
  57 {
  58         set_session (s);
  59
  60         Config->ParameterChanged.connect (_parameter_connection, parent_invalidator, boost::bind (&LevelMeterBase::parameter_changed, this, _1), gui_context());
  61         ARDOUR_UI::config()->ParameterChanged.connect (sigc::mem_fun(*this, &LevelMeterBase::parameter_changed));
  62         ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeterBase::color_handler));
  63 }
  64
  65 LevelMeterBase::~LevelMeterBase ()
  66 {
  67         _configuration_connection.disconnect();
  68         _meter_type_connection.disconnect();
  69         _parameter_connection.disconnect();
  70         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  71                 delete (*i).meter;
  72         }
  73         meters.clear();
  74 }
  75
  76 void
  77 LevelMeterBase::set_meter (PeakMeter* meter)
  78 {
  79         _configuration_connection.disconnect();
  80         _meter_type_connection.disconnect();
  81
  82         _meter = meter;
  83         color_changed = true;
  84
  85         if (_meter) {
  86                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  87                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  88         }
  89 }
  90
  91 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  92         switch (lul) {
  93                 case MeteringLineUp24:
  94                         return offset + 6.0;
  95                 case MeteringLineUp20:
  96                         return offset + 2.0;
  97                 case MeteringLineUp18:
  98                         return offset;
  99                 case MeteringLineUp15:
 100                         return offset - 3.0;
 101                 default:
 102                         break;
 103         }
 104         return offset;
 105 }
 106
 107 static float meter_lineup(float offset) {
 108         return meter_lineup_cfg (ARDOUR_UI::config()->get_meter_line_up_level(), offset);
 109 }
 110
 111 static float vu_standard() {
 112         // note - default meter config is +2dB (france)
 113         switch (ARDOUR_UI::config()->get_meter_vu_standard()) {
 114                 default:
 115                 case MeteringVUfrench:   // 0VU = -2dBu
 116                         return 0;
 117                 case MeteringVUamerican: // 0VU =  0dBu
 118                         return -2;
 119                 case MeteringVUstandard: // 0VU = +4dBu
 120                         return -6;
 121                 case MeteringVUeight:    // 0VU = +8dBu
 122                         return -10;
 123         }
 124 }
 125
 126 float
 127 LevelMeterBase::update_meters ()
 128 {
 129         vector<MeterInfo>::iterator i;
 130         uint32_t n;
 131
 132         if (!_meter) {
 133                 return 0.0f;
 134         }
 135
 136         uint32_t nmidi = _meter->input_streams().n_midi();
 137
 138         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 139                 if ((*i).packed) {
 140                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 141                         if (mpeak > (*i).max_peak) {
 142                                 (*i).max_peak = mpeak;
 143                                 (*i).meter->set_highlight(mpeak >= ARDOUR_UI::config()->get_meter_peak());
 144                         }
 145                         if (mpeak > max_peak) {
 146                                 max_peak = mpeak;
 147                         }
 148
 149                         if (n < nmidi) {
 150                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 151                         } else {
 152                                 const float peak = _meter->meter_level (n, meter_type);
 153                                 if (meter_type == MeterPeak) {
 154                                         (*i).meter->set (log_meter (peak));
 155                                 } else if (meter_type == MeterPeak0dB) {
 156                                         (*i).meter->set (log_meter0dB (peak));
 157                                 } else if (meter_type == MeterIEC1NOR) {
 158                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 159                                 } else if (meter_type == MeterIEC1DIN) {
 160                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(ARDOUR_UI::config()->get_meter_line_up_din(), 3.0)));
 161                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 162                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 163                                 } else if (meter_type == MeterVU) {
 164                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 165                                 } else if (meter_type == MeterK12) {
 166                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 167                                 } else if (meter_type == MeterK14) {
 168                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 169                                 } else if (meter_type == MeterK20) {
 170                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 171                                 } else { // RMS
 172                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 173                                 }
 174                         }
 175                 }
 176         }
 177         return max_peak;
 178 }
 179
 180 void
 181 LevelMeterBase::parameter_changed (string p)
 182 {
 183         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 184
 185         if (p == "meter-hold") {
 186                 vector<MeterInfo>::iterator i;
 187                 uint32_t n;
 188
 189                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 190                         (*i).meter->set_hold_count ((uint32_t) floor(ARDOUR_UI::config()->get_meter_hold()));
 191                 }
 192         }
 193         else if (p == "meter-line-up-level") {
 194                 color_changed = true;
 195                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 196         }
 197         else if (p == "meter-style-led") {
 198                 color_changed = true;
 199                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 200         }
 201         else if (p == "meter-peak") {
 202                 vector<MeterInfo>::iterator i;
 203                 uint32_t n;
 204
 205                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 206                         (*i).max_peak = minus_infinity();
 207                 }
 208         }
 209 }
 210
 211 void
 212 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 213 {
 214         color_changed = true;
 215         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 216 }
 217
 218 void
 219 LevelMeterBase::meter_type_changed (MeterType t)
 220 {
 221         meter_type = t;
 222         color_changed = true;
 223         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 224         MeterTypeChanged(t);
 225 }
 226
 227 void
 228 LevelMeterBase::hide_all_meters ()
 229 {
 230         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 231                 if ((*i).packed) {
 232                         mtr_remove (*((*i).meter));
 233                         (*i).packed = false;
 234                 }
 235         }
 236 }
 237
 238 void
 239 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 240 {
 241
 242         if (!_meter) {
 243                 hide_all_meters ();
 244                 return; /* do it later or never */
 245         }
 246
 247         int32_t nmidi = _meter->input_streams().n_midi();
 248         uint32_t nmeters = _meter->input_streams().n_total();
 249         regular_meter_width = initial_width;
 250         thin_meter_width = thin_width;
 251         meter_length = len;
 252
 253         guint16 width;
 254
 255         if (nmeters == 0) {
 256                 hide_all_meters ();
 257                 return;
 258         }
 259
 260         if (nmeters <= 2) {
 261                 width = regular_meter_width;
 262         } else {
 263                 width = thin_meter_width;
 264         }
 265
 266         width = rint (width * ARDOUR_UI::ui_scale);
 267
 268         if (   meters.size() > 0
 269             && nmeters == visible_meter_count
 270             && meters[0].width == width
 271             && meters[0].length == len
 272             && !color_changed
 273             && meter_type == visible_meter_type) {
 274                 return;
 275         }
 276
 277 #if 0
 278         printf("Meter redraw: %s %s %s %s %s %s\n",
 279                         (meters.size() > 0) ? "yes" : "no",
 280                         (meters.size() > 0 &&  meters[0].width == width) ? "yes" : "no",
 281                         (meters.size() > 0 &&  meters[0].length == len) ? "yes" : "no",
 282                         (nmeters == visible_meter_count) ? "yes" : "no",
 283                         (meter_type == visible_meter_type) ? "yes" : "no",
 284                         !color_changed ? "yes" : "no"
 285                         );
 286 #endif
 287
 288         hide_all_meters ();
 289         while (meters.size() < nmeters) {
 290                 meters.push_back (MeterInfo());
 291         }
 292
 293         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 294
 295         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 296                 uint32_t c[10];
 297                 uint32_t b[4];
 298                 float stp[4];
 299                 int styleflags = ARDOUR_UI::config()->get_meter_style_led() ? 3 : 1;
 300                 b[0] = ARDOUR_UI::config()->color ("meter background bottom");
 301                 b[1] = ARDOUR_UI::config()->color ("meter background top");
 302                 b[2] = 0x991122ff; // red highlight gradient Bot
 303                 b[3] = 0x551111ff; // red highlight gradient Top
 304                 if (n < nmidi) {
 305                         c[0] = ARDOUR_UI::config()->color ("midi meter color0");
 306                         c[1] = ARDOUR_UI::config()->color ("midi meter color1");
 307                         c[2] = ARDOUR_UI::config()->color ("midi meter color2");
 308                         c[3] = ARDOUR_UI::config()->color ("midi meter color3");
 309                         c[4] = ARDOUR_UI::config()->color ("midi meter color4");
 310                         c[5] = ARDOUR_UI::config()->color ("midi meter color5");
 311                         c[6] = ARDOUR_UI::config()->color ("midi meter color6");
 312                         c[7] = ARDOUR_UI::config()->color ("midi meter color7");
 313                         c[8] = ARDOUR_UI::config()->color ("midi meter color8");
 314                         c[9] = ARDOUR_UI::config()->color ("midi meter color9");
 315                         stp[0] = 115.0 *  32.0 / 128.0;
 316                         stp[1] = 115.0 *  64.0 / 128.0;
 317                         stp[2] = 115.0 * 100.0 / 128.0;
 318                         stp[3] = 115.0 * 112.0 / 128.0;
 319                 } else {
 320                         c[0] = ARDOUR_UI::config()->color ("meter color0");
 321                         c[1] = ARDOUR_UI::config()->color ("meter color1");
 322                         c[2] = ARDOUR_UI::config()->color ("meter color2");
 323                         c[3] = ARDOUR_UI::config()->color ("meter color3");
 324                         c[4] = ARDOUR_UI::config()->color ("meter color4");
 325                         c[5] = ARDOUR_UI::config()->color ("meter color5");
 326                         c[6] = ARDOUR_UI::config()->color ("meter color6");
 327                         c[7] = ARDOUR_UI::config()->color ("meter color7");
 328                         c[8] = ARDOUR_UI::config()->color ("meter color8");
 329                         c[9] = ARDOUR_UI::config()->color ("meter color9");
 330
 331                         switch (meter_type) {
 332                                 case MeterK20:
 333                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 334                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 335                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 336                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 337                                         c[0] = c[1] = 0x008800ff;
 338                                         c[2] = c[3] = 0x00ff00ff;
 339                                         c[4] = c[5] = 0xffff00ff;
 340                                         c[6] = c[7] = 0xffff00ff;
 341                                         c[8] = c[9] = 0xff0000ff;
 342                                         break;
 343                                 case MeterK14:
 344                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 345                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 346                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 347                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 348                                         c[0] = c[1] = 0x008800ff;
 349                                         c[2] = c[3] = 0x00ff00ff;
 350                                         c[4] = c[5] = 0xffff00ff;
 351                                         c[6] = c[7] = 0xffff00ff;
 352                                         c[8] = c[9] = 0xff0000ff;
 353                                         break;
 354                                 case MeterK12:
 355                                         stp[0] = 115.0 * meter_deflect_k(-32, 12);  //-20
 356                                         stp[1] = 115.0 * meter_deflect_k(-12, 12);  //  0
 357                                         stp[2] = 115.0 * meter_deflect_k(-10, 12);  // +2
 358                                         stp[3] = 115.0 * meter_deflect_k( -8, 12);  // +4
 359                                         c[0] = c[1] = 0x008800ff;
 360                                         c[2] = c[3] = 0x00ff00ff;
 361                                         c[4] = c[5] = 0xffff00ff;
 362                                         c[6] = c[7] = 0xffff00ff;
 363                                         c[8] = c[9] = 0xff0000ff;
 364                                         break;
 365                                 case MeterIEC2BBC:
 366                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 367                                                 ARDOUR_UI::config()->color ("meter color BBC");
 368                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 369                                         break;
 370                                 case MeterIEC2EBU:
 371                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 372                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 373                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 374                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 375                                         c[3] = c[2] = c[1];
 376                                         c[6] = c[7] = c[8] = c[9];
 377                                         break;
 378                                 case MeterIEC1NOR:
 379                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 380                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 381                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 382                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 383                                         c[0] = c[1] = c[2]; // bright-green
 384                                         c[6] = c[7] = c[8] = c[9];
 385                                         break;
 386                                 case MeterIEC1DIN:
 387                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 388                                         stp[1] = 115.0 * meter_deflect_din(-18);
 389                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 390                                         stp[3] = 115.0 * meter_deflect_din( -9);
 391                                         c[0] = c[2] = c[3] = c[1];
 392                                         c[4] = c[6];
 393                                         c[5] = c[7];
 394                                         break;
 395                                 case MeterVU:
 396                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 397                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 398                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 399                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 400                                         c[0] = c[2] = c[3] = c[4] = c[5] = c[1];
 401                                         c[7] = c[8] = c[9] = c[6];
 402                                         break;
 403                                 case MeterPeak0dB:
 404                                          stp[1] =  89.125; // 115.0 * log_meter0dB(-9);
 405                                          stp[2] = 106.375; // 115.0 * log_meter0dB(-3);
 406                                          stp[3] = 115.0;   // 115.0 * log_meter0dB(0);
 407                                         switch (ARDOUR_UI::config()->get_meter_line_up_level()) {
 408                                         case MeteringLineUp24:
 409                                                 stp[0] = 115.0 * log_meter0dB(-24);
 410                                                 break;
 411                                         case MeteringLineUp20:
 412                                                 stp[0] = 115.0 * log_meter0dB(-20);
 413                                                 break;
 414                                         default:
 415                                         case MeteringLineUp18:
 416                                                 stp[0] = 115.0 * log_meter0dB(-18);
 417                                                 break;
 418                                         case MeteringLineUp15:
 419                                                 stp[0] = 115.0 * log_meter0dB(-15);
 420                                         }
 421                                         break;
 422                                 default: // PEAK, RMS
 423                                         stp[1] = 77.5;  // 115 * log_meter(-9)
 424                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 425                                         stp[3] = 100.0; // 115 * log_meter(0)
 426                                         switch (ARDOUR_UI::config()->get_meter_line_up_level()) {
 427                                         case MeteringLineUp24:
 428                                                 stp[0] = 42.0;
 429                                                 break;
 430                                         case MeteringLineUp20:
 431                                                 stp[0] = 50.0;
 432                                                 break;
 433                                         default:
 434                                         case MeteringLineUp18:
 435                                                 stp[0] = 55.0;
 436                                                 break;
 437                                         case MeteringLineUp15:
 438                                                 stp[0] = 62.5;
 439                                                 break;
 440                                 }
 441                         }
 442                 }
 443                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 444                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 445                         meters[n].packed = false;
 446                         delete meters[n].meter;
 447                         meters[n].meter = new FastMeter ((uint32_t) floor (ARDOUR_UI::config()->get_meter_hold()), width, _meter_orientation, len,
 448                                         c[0], c[1], c[2], c[3], c[4],
 449                                         c[5], c[6], c[7], c[8], c[9],
 450                                         b[0], b[1], b[2], b[3],
 451                                         stp[0], stp[1], stp[2], stp[3],
 452                                         styleflags
 453                                         );
 454                         meters[n].meter->set_highlight(hl);
 455                         meters[n].width = width;
 456                         meters[n].length = len;
 457                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 458                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press), false);
 459                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release), false);
 460                 }
 461
 462                 //pack_end (*meters[n].meter, false, false);
 463                 mtr_pack (*meters[n].meter);
 464                 meters[n].meter->show_all ();
 465                 meters[n].packed = true;
 466         }
 467         //show();
 468         color_changed = false;
 469         visible_meter_type = meter_type;
 470         visible_meter_count = nmeters;
 471 }
 472
 473 void
 474 LevelMeterBase::set_type(MeterType t)
 475 {
 476         meter_type = t;
 477         _meter->set_type(t);
 478 }
 479
 480 bool
 481 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 482 {
 483         return static_cast<bool>(ButtonPress (ev)); /* EMIT SIGNAL */
 484 }
 485
 486 bool
 487 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 488 {
 489         if (ev->button == 1) {
 490                 clear_meters (false);
 491         }
 492         ButtonRelease(ev);
 493
 494         return true;
 495 }
 496
 497
 498 void LevelMeterBase::clear_meters (bool reset_highlight)
 499 {
 500         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 501                 (*i).meter->clear();
 502                 (*i).max_peak = minus_infinity();
 503                 if (reset_highlight)
 504                         (*i).meter->set_highlight(false);
 505         }
 506         max_peak = minus_infinity();
 507 }
 508
 509 void LevelMeterBase::hide_meters ()
 510 {
 511         hide_all_meters();
 512 }
 513
 514 void
 515 LevelMeterBase::color_handler ()
 516 {
 517         color_changed = true;
 518         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 519 }
 520
 521 LevelMeterHBox::LevelMeterHBox(Session* s)
 522         : LevelMeterBase(s, invalidator(*this))
 523 {
 524         set_spacing(1);
 525         show();
 526 }
 527
 528
 529 LevelMeterHBox::~LevelMeterHBox() {}
 530
 531 void
 532 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 533         pack_end (w, false, false);
 534 }
 535
 536 void
 537 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 538         remove (w);
 539 }
 540
 541
 542 LevelMeterVBox::LevelMeterVBox(Session* s)
 543         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 544 {
 545         set_spacing(1);
 546         show();
 547 }
 548 LevelMeterVBox::~LevelMeterVBox() {}
 549
 550 void
 551 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 552         pack_end (w, false, false);
 553 }
 554
 555 void
 556 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 557         remove (w);
 558 }