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 "level_meter.h"
  29 #include "utils.h"
  30 #include "logmeter.h"
  31 #include "gui_thread.h"
  32 #include "keyboard.h"
  33 #include "public_editor.h"
  34
  35 #include "i18n.h"
  36
  37 using namespace ARDOUR;
  38 using namespace ARDOUR_UI_UTILS;
  39 using namespace PBD;
  40 using namespace Gtkmm2ext;
  41 using namespace Gtk;
  42 using namespace std;
  43
  44 LevelMeterBase::LevelMeterBase (Session* s, PBD::EventLoop::InvalidationRecord* ir, FastMeter::Orientation o)
  45         : parent_invalidator(ir)
  46         , _meter (0)
  47         , _meter_orientation(o)
  48         , regular_meter_width (6)
  49         , meter_length (0)
  50         , thin_meter_width(2)
  51         , max_peak (minus_infinity())
  52         , meter_type (MeterPeak)
  53         , visible_meter_type (MeterType(0))
  54         , visible_meter_count (0)
  55         , color_changed (false)
  56 {
  57         set_session (s);
  58
  59         Config->ParameterChanged.connect (_parameter_connection, parent_invalidator, boost::bind (&LevelMeterBase::parameter_changed, this, _1), gui_context());
  60         ARDOUR_UI::config()->ParameterChanged.connect (sigc::mem_fun(*this, &LevelMeterBase::parameter_changed));
  61         UIConfiguration::ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeterBase::color_handler));
  62 }
  63
  64 LevelMeterBase::~LevelMeterBase ()
  65 {
  66         _configuration_connection.disconnect();
  67         _meter_type_connection.disconnect();
  68         _parameter_connection.disconnect();
  69         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  70                 delete (*i).meter;
  71         }
  72         meters.clear();
  73 }
  74
  75 void
  76 LevelMeterBase::set_meter (PeakMeter* meter)
  77 {
  78         _configuration_connection.disconnect();
  79         _meter_type_connection.disconnect();
  80
  81         _meter = meter;
  82         color_changed = true; // force update
  83
  84         if (_meter) {
  85                 _meter->ConfigurationChanged.connect (_configuration_connection, parent_invalidator, boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  86                 _meter->TypeChanged.connect (_meter_type_connection, parent_invalidator, boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  87         }
  88 }
  89
  90 static float meter_lineup_cfg(MeterLineUp lul, float offset) {
  91         switch (lul) {
  92                 case MeteringLineUp24:
  93                         return offset + 6.0;
  94                 case MeteringLineUp20:
  95                         return offset + 2.0;
  96                 case MeteringLineUp18:
  97                         return offset;
  98                 case MeteringLineUp15:
  99                         return offset - 3.0;
 100                 default:
 101                         break;
 102         }
 103         return offset;
 104 }
 105
 106 static float meter_lineup(float offset) {
 107         return meter_lineup_cfg (ARDOUR_UI::config()->get_meter_line_up_level(), offset);
 108 }
 109
 110 static float vu_standard() {
 111         // note - default meter config is +2dB (france)
 112         switch (ARDOUR_UI::config()->get_meter_vu_standard()) {
 113                 default:
 114                 case MeteringVUfrench:   // 0VU = -2dBu
 115                         return 0;
 116                 case MeteringVUamerican: // 0VU =  0dBu
 117                         return -2;
 118                 case MeteringVUstandard: // 0VU = +4dBu
 119                         return -6;
 120                 case MeteringVUeight:    // 0VU = +8dBu
 121                         return -10;
 122         }
 123 }
 124
 125 float
 126 LevelMeterBase::update_meters ()
 127 {
 128         vector<MeterInfo>::iterator i;
 129         uint32_t n;
 130
 131         if (!_meter) {
 132                 return 0.0f;
 133         }
 134
 135         uint32_t nmidi = _meter->input_streams().n_midi();
 136
 137         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 138                 if ((*i).packed) {
 139                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 140                         if (mpeak > (*i).max_peak) {
 141                                 (*i).max_peak = mpeak;
 142                                 (*i).meter->set_highlight(mpeak >= ARDOUR_UI::config()->get_meter_peak());
 143                         }
 144                         if (mpeak > max_peak) {
 145                                 max_peak = mpeak;
 146                         }
 147
 148                         if (n < nmidi) {
 149                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 150                         } else {
 151                                 const float peak = _meter->meter_level (n, meter_type);
 152                                 if (meter_type == MeterPeak) {
 153                                         (*i).meter->set (log_meter (peak));
 154                                 } else if (meter_type == MeterPeak0dB) {
 155                                         (*i).meter->set (log_meter0dB (peak));
 156                                 } else if (meter_type == MeterIEC1NOR) {
 157                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 158                                 } else if (meter_type == MeterIEC1DIN) {
 159                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup_cfg(ARDOUR_UI::config()->get_meter_line_up_din(), 3.0)));
 160                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 161                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 162                                 } else if (meter_type == MeterVU) {
 163                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 164                                 } else if (meter_type == MeterK12) {
 165                                         (*i).meter->set (meter_deflect_k (peak, 12), meter_deflect_k(_meter->meter_level(n, MeterPeak), 12));
 166                                 } else if (meter_type == MeterK14) {
 167                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 168                                 } else if (meter_type == MeterK20) {
 169                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 170                                 } else { // RMS
 171                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 172                                 }
 173                         }
 174                 }
 175         }
 176         return max_peak;
 177 }
 178
 179 void
 180 LevelMeterBase::parameter_changed (string p)
 181 {
 182         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 183
 184         if (p == "meter-hold") {
 185                 vector<MeterInfo>::iterator i;
 186                 uint32_t n;
 187
 188                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 189                         (*i).meter->set_hold_count ((uint32_t) floor(ARDOUR_UI::config()->get_meter_hold()));
 190                 }
 191         }
 192         else if (p == "meter-line-up-level") {
 193                 color_changed = true;
 194                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 195         }
 196         else if (p == "meter-style-led") {
 197                 color_changed = true;
 198                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 199         }
 200         else if (p == "meter-peak") {
 201                 vector<MeterInfo>::iterator i;
 202                 uint32_t n;
 203
 204                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 205                         (*i).max_peak = minus_infinity();
 206                 }
 207         }
 208 }
 209
 210 void
 211 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 212 {
 213         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 214 }
 215
 216 void
 217 LevelMeterBase::meter_type_changed (MeterType t)
 218 {
 219         meter_type = t;
 220         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 221         MeterTypeChanged(t);
 222 }
 223
 224 void
 225 LevelMeterBase::hide_all_meters ()
 226 {
 227         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 228                 if ((*i).packed) {
 229                         mtr_remove (*((*i).meter));
 230                         (*i).packed = false;
 231                 }
 232         }
 233 }
 234
 235 void
 236 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 237 {
 238
 239         if (!_meter) {
 240                 hide_all_meters ();
 241                 return; /* do it later or never */
 242         }
 243
 244         int32_t nmidi = _meter->input_streams().n_midi();
 245         uint32_t nmeters = _meter->input_streams().n_total();
 246         regular_meter_width = initial_width;
 247         thin_meter_width = thin_width;
 248         meter_length = len;
 249
 250         guint16 width;
 251
 252         if (nmeters == 0) {
 253                 hide_all_meters ();
 254                 return;
 255         }
 256
 257         if (nmeters <= 2) {
 258                 width = regular_meter_width;
 259         } else {
 260                 width = thin_meter_width;
 261         }
 262
 263         width = rint (width * ARDOUR_UI::ui_scale);
 264
 265         if (   meters.size() > 0
 266             && nmeters == visible_meter_count
 267             && meters[0].width == width
 268             && meters[0].length == len
 269             && !color_changed
 270             && meter_type == visible_meter_type) {
 271                 return;
 272         }
 273
 274 #if 0
 275         printf("Meter redraw: %s %s %s %s %s %s\n",
 276                         (meters.size() > 0) ? "yes" : "no",
 277                         (meters.size() > 0 &&  meters[0].width == width) ? "yes" : "no",
 278                         (meters.size() > 0 &&  meters[0].length == len) ? "yes" : "no",
 279                         (nmeters == visible_meter_count) ? "yes" : "no",
 280                         (meter_type == visible_meter_type) ? "yes" : "no",
 281                         !color_changed ? "yes" : "no"
 282                         );
 283 #endif
 284
 285         hide_all_meters ();
 286         while (meters.size() < nmeters) {
 287                 meters.push_back (MeterInfo());
 288         }
 289
 290         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 291
 292         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 293                 uint32_t c[10];
 294                 uint32_t b[4];
 295                 float stp[4];
 296                 int styleflags = ARDOUR_UI::config()->get_meter_style_led() ? 3 : 1;
 297                 b[0] = ARDOUR_UI::config()->color ("meter background bottom");
 298                 b[1] = ARDOUR_UI::config()->color ("meter background top");
 299                 b[2] = 0x991122ff; // red highlight gradient Bot
 300                 b[3] = 0x551111ff; // red highlight gradient Top
 301                 if (n < nmidi) {
 302                         c[0] = ARDOUR_UI::config()->color ("midi meter color0");
 303                         c[1] = ARDOUR_UI::config()->color ("midi meter color1");
 304                         c[2] = ARDOUR_UI::config()->color ("midi meter color2");
 305                         c[3] = ARDOUR_UI::config()->color ("midi meter color3");
 306                         c[4] = ARDOUR_UI::config()->color ("midi meter color4");
 307                         c[5] = ARDOUR_UI::config()->color ("midi meter color5");
 308                         c[6] = ARDOUR_UI::config()->color ("midi meter color6");
 309                         c[7] = ARDOUR_UI::config()->color ("midi meter color7");
 310                         c[8] = ARDOUR_UI::config()->color ("midi meter color8");
 311                         c[9] = ARDOUR_UI::config()->color ("midi meter color9");
 312                         stp[0] = 115.0 *  32.0 / 128.0;
 313                         stp[1] = 115.0 *  64.0 / 128.0;
 314                         stp[2] = 115.0 * 100.0 / 128.0;
 315                         stp[3] = 115.0 * 112.0 / 128.0;
 316                 } else {
 317                         c[0] = ARDOUR_UI::config()->color ("meter color0");
 318                         c[1] = ARDOUR_UI::config()->color ("meter color1");
 319                         c[2] = ARDOUR_UI::config()->color ("meter color2");
 320                         c[3] = ARDOUR_UI::config()->color ("meter color3");
 321                         c[4] = ARDOUR_UI::config()->color ("meter color4");
 322                         c[5] = ARDOUR_UI::config()->color ("meter color5");
 323                         c[6] = ARDOUR_UI::config()->color ("meter color6");
 324                         c[7] = ARDOUR_UI::config()->color ("meter color7");
 325                         c[8] = ARDOUR_UI::config()->color ("meter color8");
 326                         c[9] = ARDOUR_UI::config()->color ("meter color9");
 327
 328                         switch (meter_type) {
 329                                 case MeterK20:
 330                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 331                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 332                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 333                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 334                                         c[0] = c[1] = 0x008800ff;
 335                                         c[2] = c[3] = 0x00ff00ff;
 336                                         c[4] = c[5] = 0xffff00ff;
 337                                         c[6] = c[7] = 0xffff00ff;
 338                                         c[8] = c[9] = 0xff0000ff;
 339                                         break;
 340                                 case MeterK14:
 341                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 342                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 343                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 344                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 345                                         c[0] = c[1] = 0x008800ff;
 346                                         c[2] = c[3] = 0x00ff00ff;
 347                                         c[4] = c[5] = 0xffff00ff;
 348                                         c[6] = c[7] = 0xffff00ff;
 349                                         c[8] = c[9] = 0xff0000ff;
 350                                         break;
 351                                 case MeterK12:
 352                                         stp[0] = 115.0 * meter_deflect_k(-32, 12);  //-20
 353                                         stp[1] = 115.0 * meter_deflect_k(-12, 12);  //  0
 354                                         stp[2] = 115.0 * meter_deflect_k(-10, 12);  // +2
 355                                         stp[3] = 115.0 * meter_deflect_k( -8, 12);  // +4
 356                                         c[0] = c[1] = 0x008800ff;
 357                                         c[2] = c[3] = 0x00ff00ff;
 358                                         c[4] = c[5] = 0xffff00ff;
 359                                         c[6] = c[7] = 0xffff00ff;
 360                                         c[8] = c[9] = 0xff0000ff;
 361                                         break;
 362                                 case MeterIEC2BBC:
 363                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] =
 364                                                 ARDOUR_UI::config()->color ("meter color BBC");
 365                                         stp[0] = stp[1] = stp[2] = stp[3] = 115.0;
 366                                         break;
 367                                 case MeterIEC2EBU:
 368                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 369                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 370                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 371                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 372                                         c[3] = c[2] = c[1];
 373                                         c[6] = c[7] = c[8] = c[9];
 374                                         break;
 375                                 case MeterIEC1NOR:
 376                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 377                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 378                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 379                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 380                                         c[0] = c[1] = c[2]; // bright-green
 381                                         c[6] = c[7] = c[8] = c[9];
 382                                         break;
 383                                 case MeterIEC1DIN:
 384                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 385                                         stp[1] = 115.0 * meter_deflect_din(-18);
 386                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 387                                         stp[3] = 115.0 * meter_deflect_din( -9);
 388                                         c[0] = c[2] = c[3] = c[1];
 389                                         c[4] = c[6];
 390                                         c[5] = c[7];
 391                                         break;
 392                                 case MeterVU:
 393                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 394                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 395                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 396                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 397                                         c[0] = c[2] = c[3] = c[4] = c[5] = c[1];
 398                                         c[7] = c[8] = c[9] = c[6];
 399                                         break;
 400                                 case MeterPeak0dB:
 401                                          stp[1] =  89.125; // 115.0 * log_meter0dB(-9);
 402                                          stp[2] = 106.375; // 115.0 * log_meter0dB(-3);
 403                                          stp[3] = 115.0;   // 115.0 * log_meter0dB(0);
 404                                         switch (ARDOUR_UI::config()->get_meter_line_up_level()) {
 405                                         case MeteringLineUp24:
 406                                                 stp[0] = 115.0 * log_meter0dB(-24);
 407                                                 break;
 408                                         case MeteringLineUp20:
 409                                                 stp[0] = 115.0 * log_meter0dB(-20);
 410                                                 break;
 411                                         default:
 412                                         case MeteringLineUp18:
 413                                                 stp[0] = 115.0 * log_meter0dB(-18);
 414                                                 break;
 415                                         case MeteringLineUp15:
 416                                                 stp[0] = 115.0 * log_meter0dB(-15);
 417                                         }
 418                                         break;
 419                                 default: // PEAK, RMS
 420                                         stp[1] = 77.5;  // 115 * log_meter(-9)
 421                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 422                                         stp[3] = 100.0; // 115 * log_meter(0)
 423                                         switch (ARDOUR_UI::config()->get_meter_line_up_level()) {
 424                                         case MeteringLineUp24:
 425                                                 stp[0] = 42.0;
 426                                                 break;
 427                                         case MeteringLineUp20:
 428                                                 stp[0] = 50.0;
 429                                                 break;
 430                                         default:
 431                                         case MeteringLineUp18:
 432                                                 stp[0] = 55.0;
 433                                                 break;
 434                                         case MeteringLineUp15:
 435                                                 stp[0] = 62.5;
 436                                                 break;
 437                                 }
 438                         }
 439                 }
 440                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 441                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 442                         meters[n].packed = false;
 443                         delete meters[n].meter;
 444                         meters[n].meter = new FastMeter ((uint32_t) floor (ARDOUR_UI::config()->get_meter_hold()), width, _meter_orientation, len,
 445                                         c[0], c[1], c[2], c[3], c[4],
 446                                         c[5], c[6], c[7], c[8], c[9],
 447                                         b[0], b[1], b[2], b[3],
 448                                         stp[0], stp[1], stp[2], stp[3],
 449                                         styleflags
 450                                         );
 451                         meters[n].meter->set_highlight(hl);
 452                         meters[n].width = width;
 453                         meters[n].length = len;
 454                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 455                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press), false);
 456                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release), false);
 457                 }
 458
 459                 //pack_end (*meters[n].meter, false, false);
 460                 mtr_pack (*meters[n].meter);
 461                 meters[n].meter->show_all ();
 462                 meters[n].packed = true;
 463         }
 464         //show();
 465         color_changed = false;
 466         visible_meter_type = meter_type;
 467         visible_meter_count = nmeters;
 468 }
 469
 470 void
 471 LevelMeterBase::set_type(MeterType t)
 472 {
 473         meter_type = t;
 474         _meter->set_type(t);
 475 }
 476
 477 bool
 478 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 479 {
 480         return static_cast<bool>(ButtonPress (ev)); /* EMIT SIGNAL */
 481 }
 482
 483 bool
 484 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 485 {
 486         if (ev->button == 1) {
 487                 clear_meters (false);
 488         }
 489         ButtonRelease(ev);
 490
 491         return true;
 492 }
 493
 494
 495 void LevelMeterBase::clear_meters (bool reset_highlight)
 496 {
 497         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 498                 (*i).meter->clear();
 499                 (*i).max_peak = minus_infinity();
 500                 if (reset_highlight)
 501                         (*i).meter->set_highlight(false);
 502         }
 503         max_peak = minus_infinity();
 504 }
 505
 506 void LevelMeterBase::hide_meters ()
 507 {
 508         hide_all_meters();
 509 }
 510
 511 void
 512 LevelMeterBase::color_handler ()
 513 {
 514         color_changed = true;
 515         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 516 }
 517
 518 LevelMeterHBox::LevelMeterHBox(Session* s)
 519         : LevelMeterBase(s, invalidator(*this))
 520 {
 521         set_spacing(1);
 522         show();
 523 }
 524
 525
 526 LevelMeterHBox::~LevelMeterHBox() {}
 527
 528 void
 529 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 530         pack_end (w, false, false);
 531 }
 532
 533 void
 534 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 535         remove (w);
 536 }
 537
 538
 539 LevelMeterVBox::LevelMeterVBox(Session* s)
 540         : LevelMeterBase(s, invalidator(*this), FastMeter::Horizontal)
 541 {
 542         set_spacing(1);
 543         show();
 544 }
 545 LevelMeterVBox::~LevelMeterVBox() {}
 546
 547 void
 548 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 549         pack_end (w, false, false);
 550 }
 551
 552 void
 553 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 554         remove (w);
 555 }