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