gtk2_ardour/level_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <limits.h>
  21
  22 #include "ardour/meter.h"
  23
  24 #include <gtkmm2ext/utils.h>
  25 #include <gtkmm2ext/barcontroller.h>
  26 #include "midi++/manager.h"
  27 #include "pbd/fastlog.h"
  28
  29 #include "ardour_ui.h"
  30 #include "global_signals.h"
  31 #include "level_meter.h"
  32 #include "utils.h"
  33 #include "logmeter.h"
  34 #include "gui_thread.h"
  35 #include "keyboard.h"
  36 #include "public_editor.h"
  37
  38 #include "i18n.h"
  39
  40 using namespace ARDOUR;
  41 using namespace PBD;
  42 using namespace Gtkmm2ext;
  43 using namespace Gtk;
  44 using namespace std;
  45
  46 LevelMeterBase::LevelMeterBase (Session* s, FastMeter::Orientation o)
  47         : _meter (0)
  48         , _meter_orientation(o)
  49         , meter_length (0)
  50         , thin_meter_width(2)
  51 {
  52         set_session (s);
  53         //set_spacing (1);
  54         Config->ParameterChanged.connect (_parameter_connection, invalidator (*this), boost::bind (&LevelMeterBase::parameter_changed, this, _1), gui_context());
  55         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &LevelMeterBase::on_theme_changed));
  56         ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeterBase::color_handler));
  57         max_peak = minus_infinity();
  58         meter_type = MeterPeak;
  59 }
  60
  61 void
  62 LevelMeterBase::on_theme_changed()
  63 {
  64         style_changed = true;
  65 }
  66
  67 LevelMeterBase::~LevelMeterBase ()
  68 {
  69         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
  70                 delete (*i).meter;
  71         }
  72 }
  73
  74 void
  75 LevelMeterBase::set_meter (PeakMeter* meter)
  76 {
  77         _configuration_connection.disconnect();
  78         _meter_type_connection.disconnect();
  79
  80         _meter = meter;
  81
  82         if (_meter) {
  83                 _meter->ConfigurationChanged.connect (_configuration_connection, invalidator (*this), boost::bind (&LevelMeterBase::configuration_changed, this, _1, _2), gui_context());
  84                 _meter->TypeChanged.connect (_meter_type_connection, invalidator (*this), boost::bind (&LevelMeterBase::meter_type_changed, this, _1), gui_context());
  85         }
  86 }
  87
  88 static float meter_lineup(float offset) {
  89         switch (Config->get_meter_line_up_level()) {
  90                 case MeteringLineUp24:
  91                         return offset + 6.0;
  92                 case MeteringLineUp20:
  93                         return offset + 2.0;
  94                 case MeteringLineUp18:
  95                         return offset;
  96                 case MeteringLineUp15:
  97                         return offset - 3.0;
  98                 default:
  99                         break;
 100         }
 101         return offset;
 102 }
 103
 104 static float vu_standard() {
 105         // note - default meter config is +2dB (france)
 106         switch (Config->get_meter_vu_standard()) {
 107                 default:
 108                 case MeteringVUfrench:   // 0VU = -2dBu
 109                         return 0;
 110                 case MeteringVUamerican: // 0VU =  0dBu
 111                         return -2;
 112                 case MeteringVUstandard: // 0VU = +4dBu
 113                         return -6;
 114                 case MeteringVUeight:    // 0VU = +8dBu
 115                         return -10;
 116         }
 117 }
 118
 119 float
 120 LevelMeterBase::update_meters ()
 121 {
 122         vector<MeterInfo>::iterator i;
 123         uint32_t n;
 124
 125         if (!_meter) {
 126                 return 0.0f;
 127         }
 128
 129         uint32_t nmidi = _meter->input_streams().n_midi();
 130
 131         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 132                 if ((*i).packed) {
 133                         const float mpeak = _meter->meter_level(n, MeterMaxPeak);
 134                         if (mpeak > (*i).max_peak) {
 135                                 (*i).max_peak = mpeak;
 136                                 (*i).meter->set_highlight(mpeak > Config->get_meter_peak());
 137                         }
 138                         if (mpeak > max_peak) {
 139                                 max_peak = mpeak;
 140                         }
 141
 142                         if (n < nmidi) {
 143                                 (*i).meter->set (_meter->meter_level (n, MeterPeak));
 144                         } else {
 145                                 const float peak = _meter->meter_level (n, meter_type);
 146                                 if (meter_type == MeterPeak) {
 147                                         (*i).meter->set (log_meter (peak));
 148                                 } else if (meter_type == MeterIEC1NOR) {
 149                                         (*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
 150                                 } else if (meter_type == MeterIEC1DIN) {
 151                                         (*i).meter->set (meter_deflect_din (peak + meter_lineup(3.0)));
 152                                 } else if (meter_type == MeterIEC2BBC || meter_type == MeterIEC2EBU) {
 153                                         (*i).meter->set (meter_deflect_ppm (peak + meter_lineup(0)));
 154                                 } else if (meter_type == MeterVU) {
 155                                         (*i).meter->set (meter_deflect_vu (peak + vu_standard() + meter_lineup(0)));
 156                                 } else if (meter_type == MeterK14) {
 157                                         (*i).meter->set (meter_deflect_k (peak, 14), meter_deflect_k(_meter->meter_level(n, MeterPeak), 14));
 158                                 } else if (meter_type == MeterK20) {
 159                                         (*i).meter->set (meter_deflect_k (peak, 20), meter_deflect_k(_meter->meter_level(n, MeterPeak), 20));
 160                                 } else { // RMS
 161                                         (*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
 162                                 }
 163                         }
 164                 }
 165         }
 166         return max_peak;
 167 }
 168
 169 void
 170 LevelMeterBase::parameter_changed (string p)
 171 {
 172         ENSURE_GUI_THREAD (*this, &LevelMeterBase::parameter_changed, p)
 173
 174         if (p == "meter-hold") {
 175                 vector<MeterInfo>::iterator i;
 176                 uint32_t n;
 177
 178                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 179                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 180                 }
 181         }
 182         else if (p == "meter-line-up-level") {
 183                 color_changed = true;
 184                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 185         }
 186         else if (p == "meter-style-led") {
 187                 color_changed = true;
 188                 setup_meters (meter_length, regular_meter_width, thin_meter_width);
 189         }
 190         else if (p == "meter-peak") {
 191                 vector<MeterInfo>::iterator i;
 192                 uint32_t n;
 193
 194                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 195                         (*i).max_peak = minus_infinity();
 196                 }
 197         }
 198 }
 199
 200 void
 201 LevelMeterBase::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
 202 {
 203         color_changed = true;
 204         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 205 }
 206
 207 void
 208 LevelMeterBase::meter_type_changed (MeterType t)
 209 {
 210         meter_type = t;
 211         color_changed = true;
 212         setup_meters (meter_length, regular_meter_width, thin_meter_width);
 213         MeterTypeChanged(t);
 214 }
 215
 216 void
 217 LevelMeterBase::hide_all_meters ()
 218 {
 219         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 220                 if ((*i).packed) {
 221                         mtr_remove (*((*i).meter));
 222                         (*i).packed = false;
 223                 }
 224         }
 225 }
 226
 227 void
 228 LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
 229 {
 230         hide_all_meters ();
 231
 232         if (!_meter) {
 233                 return; /* do it later or never */
 234         }
 235
 236         int32_t nmidi = _meter->input_streams().n_midi();
 237         uint32_t nmeters = _meter->input_streams().n_total();
 238         regular_meter_width = initial_width;
 239         thin_meter_width = thin_width;
 240         meter_length = len;
 241
 242         guint16 width;
 243
 244         if (nmeters == 0) {
 245                 return;
 246         }
 247
 248         if (nmeters <= 2) {
 249                 width = regular_meter_width;
 250         } else {
 251                 width = thin_meter_width;
 252         }
 253
 254         while (meters.size() < nmeters) {
 255                 meters.push_back (MeterInfo());
 256         }
 257
 258         //cerr << "LevelMeterBase::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
 259
 260         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 261                 uint32_t c[10];
 262                 uint32_t b[4];
 263                 float stp[4];
 264                 int styleflags = Config->get_meter_style_led() ? 3 : 1;
 265                 b[0] = ARDOUR_UI::config()->canvasvar_MeterBackgroundBot.get();
 266                 b[1] = ARDOUR_UI::config()->canvasvar_MeterBackgroundTop.get();
 267                 b[2] = 0x991122ff; // red highlight gradient Bot
 268                 b[3] = 0x551111ff; // red highlight gradient Top
 269                 if (n < nmidi) {
 270                         c[0] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor0();
 271                         c[1] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor1();
 272                         c[2] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor2();
 273                         c[3] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor3();
 274                         c[4] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor4();
 275                         c[5] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor5();
 276                         c[6] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor6();
 277                         c[7] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor7();
 278                         c[8] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor8();
 279                         c[9] = ARDOUR_UI::config()->get_canvasvar_MidiMeterColor9();
 280                         stp[0] = 115.0 *  32.0 / 128.0;
 281                         stp[1] = 115.0 *  64.0 / 128.0;
 282                         stp[2] = 115.0 * 100.0 / 128.0;
 283                         stp[3] = 115.0 * 112.0 / 128.0;
 284                 } else {
 285                         c[0] = ARDOUR_UI::config()->get_canvasvar_MeterColor0();
 286                         c[1] = ARDOUR_UI::config()->get_canvasvar_MeterColor1();
 287                         c[2] = ARDOUR_UI::config()->get_canvasvar_MeterColor2();
 288                         c[3] = ARDOUR_UI::config()->get_canvasvar_MeterColor3();
 289                         c[4] = ARDOUR_UI::config()->get_canvasvar_MeterColor4();
 290                         c[5] = ARDOUR_UI::config()->get_canvasvar_MeterColor5();
 291                         c[6] = ARDOUR_UI::config()->get_canvasvar_MeterColor6();
 292                         c[7] = ARDOUR_UI::config()->get_canvasvar_MeterColor7();
 293                         c[8] = ARDOUR_UI::config()->get_canvasvar_MeterColor8();
 294                         c[9] = ARDOUR_UI::config()->get_canvasvar_MeterColor9();
 295
 296                         switch (meter_type) {
 297                                 case MeterK20:
 298                                         stp[0] = 115.0 * meter_deflect_k(-40, 20);  //-20
 299                                         stp[1] = 115.0 * meter_deflect_k(-20, 20);  //  0
 300                                         stp[2] = 115.0 * meter_deflect_k(-18, 20);  // +2
 301                                         stp[3] = 115.0 * meter_deflect_k(-16, 20);  // +4
 302                                         c[0] = c[1] = 0x008800ff;
 303                                         c[2] = c[3] = 0x00ff00ff;
 304                                         c[4] = c[5] = 0xffff00ff;
 305                                         c[6] = c[7] = 0xffff00ff;
 306                                         c[8] = c[9] = 0xff0000ff;
 307                                         break;
 308                                 case MeterK14:
 309                                         stp[0] = 115.0 * meter_deflect_k(-34, 14);  //-20
 310                                         stp[1] = 115.0 * meter_deflect_k(-14, 14);  //  0
 311                                         stp[2] = 115.0 * meter_deflect_k(-12, 14);  // +2
 312                                         stp[3] = 115.0 * meter_deflect_k(-10, 14);  // +4
 313                                         c[0] = c[1] = 0x008800ff;
 314                                         c[2] = c[3] = 0x00ff00ff;
 315                                         c[4] = c[5] = 0xffff00ff;
 316                                         c[6] = c[7] = 0xffff00ff;
 317                                         c[8] = c[9] = 0xff0000ff;
 318                                         break;
 319                                 case MeterIEC2BBC:
 320                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = c[6] = c[7] = c[8] = c[9] = 0xaaaaaaff;
 321                                         break;
 322                                 case MeterIEC2EBU:
 323                                         stp[0] = 115.0 * meter_deflect_ppm(-24); // ignored
 324                                         stp[1] = 115.0 * meter_deflect_ppm(-18);
 325                                         stp[2] = 115.0 * meter_deflect_ppm( -9);
 326                                         stp[3] = 115.0 * meter_deflect_ppm(  0); // ignored
 327                                         c[3] = c[2] = c[1];
 328                                         c[6] = c[7] = c[8] = c[9];
 329                                         break;
 330                                 case MeterIEC1NOR:
 331                                         stp[0] = 115.0 * meter_deflect_nordic(-30); // ignored
 332                                         stp[1] = 115.0 * meter_deflect_nordic(-18);
 333                                         stp[2] = 115.0 * meter_deflect_nordic(-12);
 334                                         stp[3] = 115.0 * meter_deflect_nordic( -9); // ignored
 335                                         //c[2] = c[3] = c[1]; // dark-green
 336                                         c[0] = c[1] = c[2]; // bright-green
 337                                         c[6] = c[7] = c[8] = c[9];
 338                                         break;
 339                                 case MeterIEC1DIN:
 340                                         stp[0] = 115.0 * meter_deflect_din(-29); // ignored
 341                                         stp[1] = 115.0 * meter_deflect_din(-18);
 342                                         stp[2] = 115.0 * meter_deflect_din(-15); // ignored
 343                                         stp[3] = 115.0 * meter_deflect_din( -9);
 344                                         c[0] = c[1] = c[2] = c[3] = 0x00aa00ff;
 345                                         c[4] = c[6];
 346                                         c[5] = c[7];
 347                                         break;
 348                                 case MeterVU:
 349                                         stp[0] = 115.0 * meter_deflect_vu(-26); // -6
 350                                         stp[1] = 115.0 * meter_deflect_vu(-23); // -3
 351                                         stp[2] = 115.0 * meter_deflect_vu(-20); // 0
 352                                         stp[3] = 115.0 * meter_deflect_vu(-18); // +2
 353                                         c[0] = c[1] = c[2] = c[3] = c[4] = c[5] = 0x00aa00ff;
 354                                         c[6] = c[7] = c[8] = c[9] = 0xff8800ff;
 355                                         break;
 356                                 default: // PEAK, RMS
 357                                         stp[1] = 77.5;  // 115 * log_meter(-10)
 358                                         stp[2] = 92.5;  // 115 * log_meter(-3)
 359                                         stp[3] = 100.0; // 115 * log_meter(0)
 360                                 switch (Config->get_meter_line_up_level()) {
 361                                         case MeteringLineUp24:
 362                                                 stp[0] = 42.0;
 363                                                 break;
 364                                         case MeteringLineUp20:
 365                                                 stp[0] = 50.0;
 366                                                 break;
 367                                         default:
 368                                         case MeteringLineUp18:
 369                                                 stp[0] = 55.0;
 370                                                 break;
 371                                         case MeteringLineUp15:
 372                                                 stp[0] = 62.5;
 373                                                 break;
 374                                 }
 375                         }
 376                 }
 377                 if (meters[n].width != width || meters[n].length != len || color_changed || meter_type != visible_meter_type) {
 378                         bool hl = meters[n].meter ? meters[n].meter->get_highlight() : false;
 379                         delete meters[n].meter;
 380                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, _meter_orientation, len,
 381                                         c[0], c[1], c[2], c[3], c[4],
 382                                         c[5], c[6], c[7], c[8], c[9],
 383                                         b[0], b[1], b[2], b[3],
 384                                         stp[0], stp[1], stp[2], stp[3],
 385                                         styleflags
 386                                         );
 387                         meters[n].meter->set_highlight(hl);
 388                         meters[n].width = width;
 389                         meters[n].length = len;
 390                         meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 391                         meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_press));
 392                         meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeterBase::meter_button_release));
 393                 }
 394
 395                 //pack_end (*meters[n].meter, false, false);
 396                 mtr_pack (*meters[n].meter);
 397                 meters[n].meter->show_all ();
 398                 meters[n].packed = true;
 399         }
 400         //show();
 401         color_changed = false;
 402         visible_meter_type = meter_type;
 403 }
 404
 405 void
 406 LevelMeterBase::set_type(MeterType t)
 407 {
 408         meter_type = t;
 409         _meter->set_type(t);
 410 }
 411
 412 bool
 413 LevelMeterBase::meter_button_press (GdkEventButton* ev)
 414 {
 415         return ButtonPress (ev); /* EMIT SIGNAL */
 416 }
 417
 418 bool
 419 LevelMeterBase::meter_button_release (GdkEventButton* ev)
 420 {
 421         if (ev->button == 1) {
 422                 clear_meters (false);
 423         }
 424
 425         return true;
 426 }
 427
 428
 429 void LevelMeterBase::clear_meters (bool reset_highlight)
 430 {
 431         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 432                 (*i).meter->clear();
 433                 (*i).max_peak = minus_infinity();
 434                 if (reset_highlight)
 435                         (*i).meter->set_highlight(false);
 436         }
 437         max_peak = minus_infinity();
 438 }
 439
 440 void LevelMeterBase::hide_meters ()
 441 {
 442         hide_all_meters();
 443 }
 444
 445 void
 446 LevelMeterBase::color_handler ()
 447 {
 448         color_changed = true;
 449 }
 450
 451 LevelMeterHBox::LevelMeterHBox(Session* s)
 452         : LevelMeterBase(s)
 453 {
 454         set_spacing(1);
 455         show();
 456 }
 457
 458
 459 LevelMeterHBox::~LevelMeterHBox() {}
 460
 461 void
 462 LevelMeterHBox::mtr_pack(Gtk::Widget &w) {
 463         pack_end (w, false, false);
 464 }
 465
 466 void
 467 LevelMeterHBox::mtr_remove(Gtk::Widget &w) {
 468         remove (w);
 469 }
 470
 471
 472 LevelMeterVBox::LevelMeterVBox(Session* s)
 473         : LevelMeterBase(s, FastMeter::Horizontal)
 474 {
 475         set_spacing(1);
 476         show();
 477 }
 478 LevelMeterVBox::~LevelMeterVBox() {}
 479
 480 void
 481 LevelMeterVBox::mtr_pack(Gtk::Widget &w) {
 482         pack_end (w, false, false);
 483 }
 484
 485 void
 486 LevelMeterVBox::mtr_remove(Gtk::Widget &w) {
 487         remove (w);
 488 }