gtk2_ardour/meter_patterns.cc

   1 /*
   2     Copyright (C) 2013 Paul Davis
   3     Author: Robin Gareus
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <gtkmm2ext/cairo_widget.h>
  21 #include <gtkmm2ext/gtk_ui.h>
  22 #include <gtkmm2ext/utils.h>
  23 #include <gtkmm2ext/rgb_macros.h>
  24
  25 #include <ardour/rc_configuration.h>
  26 #include "ardour_ui.h"
  27 #include "utils.h"
  28 #include "logmeter.h"
  29 #include "meter_patterns.h"
  30
  31 #include "i18n.h"
  32
  33 using namespace ARDOUR;
  34 using namespace PBD;
  35 using namespace Gtk;
  36 using namespace Gtkmm2ext;
  37 using namespace std;
  38 using namespace ArdourMeter;
  39
  40 static const int max_pattern_metric_size = 1026;
  41
  42 /* signals used by meters */
  43
  44 sigc::signal<void> ArdourMeter::ResetAllPeakDisplays;
  45 sigc::signal<void,ARDOUR::Route*> ArdourMeter::ResetRoutePeakDisplays;
  46 sigc::signal<void,ARDOUR::RouteGroup*> ArdourMeter::ResetGroupPeakDisplays;
  47 sigc::signal<void> ArdourMeter::RedrawMetrics;
  48
  49 sigc::signal<void, int, ARDOUR::RouteGroup*, ARDOUR::MeterType> ArdourMeter::SetMeterTypeMulti;
  50
  51
  52 /* pattern cache */
  53
  54 struct MeterMatricsMapKey {
  55         MeterMatricsMapKey (std::string n, MeterType t, int dt)
  56                 : _n(n)
  57                 , _t(t)
  58                 , _dt(dt)
  59         {}
  60         inline bool operator<(const MeterMatricsMapKey& rhs) const {
  61                 return (_n < rhs._n) || (_n == rhs._n && _t < rhs._t) || (_n == rhs._n && _t == rhs._t && _dt < rhs._dt);
  62         }
  63         std::string _n;
  64         MeterType _t;
  65         int _dt;
  66 };
  67
  68 namespace ArdourMeter {
  69         typedef std::map<MeterMatricsMapKey, cairo_pattern_t*> MetricPatternMap;
  70 }
  71
  72 static ArdourMeter::MetricPatternMap ticks_patterns;
  73 static ArdourMeter::MetricPatternMap metric_patterns;
  74
  75
  76 const std::string
  77 ArdourMeter::meter_type_string (ARDOUR::MeterType mt)
  78 {
  79         switch (mt) {
  80                 case MeterPeak:
  81                         return _("Peak");
  82                         break;
  83                 case MeterKrms:
  84                         return _("RMS + Peak");
  85                         break;
  86                 case MeterIEC1DIN:
  87                         return _("IEC1/DIN");
  88                         break;
  89                 case MeterIEC1NOR:
  90                         return _("IEC1/Nordic");
  91                         break;
  92                 case MeterIEC2BBC:
  93                         return _("IEC2/BBC");
  94                         break;
  95                 case MeterIEC2EBU:
  96                         return _("IEC2/EBU");
  97                         break;
  98                 case MeterK20:
  99                         return _("K20");
 100                         break;
 101                 case MeterK14:
 102                         return _("K14");
 103                         break;
 104                 case MeterVU:
 105                         return _("VU");
 106                         break;
 107                 default:
 108                         return _("???");
 109                         break;
 110         }
 111 }
 112
 113 static inline int types_to_bit (vector<ARDOUR::DataType> types) {
 114         int rv = 0;
 115         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 116                 rv |= 1 << (*i);
 117         }
 118         return rv;
 119 }
 120
 121 static inline float mtr_col_and_fract(
 122                 cairo_t* cr, Gdk::Color const * const c, const uint32_t peakcolor, const MeterType mt, const float val)
 123 {
 124         float fraction = 0;
 125
 126         switch (mt) {
 127                 default:
 128                 case MeterKrms:
 129                 case MeterPeak:
 130                         fraction = log_meter (val);
 131                         if (val >= 0 || val == -9) {
 132                                 cairo_set_source_rgb (cr,
 133                                                 UINT_RGBA_R_FLT(peakcolor),
 134                                                 UINT_RGBA_G_FLT(peakcolor),
 135                                                 UINT_RGBA_B_FLT(peakcolor));
 136                         } else {
 137                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 138                         }
 139                         break;
 140                 case MeterIEC2BBC:
 141                 case MeterIEC2EBU:
 142                         fraction = meter_deflect_ppm(val);
 143                         cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 144                         break;
 145                 case MeterIEC1NOR:
 146                         fraction = meter_deflect_nordic(val);
 147 #if 0
 148                         if (val == -18.0) {
 149                                 cairo_set_source_rgb (cr,
 150                                                 UINT_RGBA_R_FLT(peakcolor),
 151                                                 UINT_RGBA_G_FLT(peakcolor),
 152                                                 UINT_RGBA_B_FLT(peakcolor));
 153                         } else {
 154                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 155                         }
 156 #else
 157                         cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 158 #endif
 159                         break;
 160                 case MeterIEC1DIN:
 161                         fraction = meter_deflect_din(val);
 162                         if (val == -9.0 || val == -15 || val == -18) {
 163                                 cairo_set_source_rgb (cr,
 164                                                 UINT_RGBA_R_FLT(peakcolor),
 165                                                 UINT_RGBA_G_FLT(peakcolor),
 166                                                 UINT_RGBA_B_FLT(peakcolor));
 167                         } else {
 168                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 169                         }
 170                         break;
 171                 case MeterVU:
 172                         fraction = meter_deflect_vu(val);
 173                         if (val >= -20.0) {
 174                                 cairo_set_source_rgb (cr,
 175                                                 UINT_RGBA_R_FLT(peakcolor),
 176                                                 UINT_RGBA_G_FLT(peakcolor),
 177                                                 UINT_RGBA_B_FLT(peakcolor));
 178                         } else {
 179                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 180                         }
 181                         break;
 182                 case MeterK20:
 183                         fraction = meter_deflect_k (val, 20);
 184                         if (val >= -16.0) {
 185                                 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
 186                         } else if (val >= -20.0) {
 187                                 cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
 188                         } else {
 189                                 cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
 190                         }
 191                         break;
 192                 case MeterK14:
 193                         if (val >= -10.0) {
 194                                 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
 195                         } else if (val >= -14.0) {
 196                                 cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
 197                         } else {
 198                                 cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
 199                         }
 200                         fraction = meter_deflect_k (val, 14);
 201                         break;
 202         }
 203         return fraction;
 204 }
 205
 206 static void set_bg_color(Gtk::Widget& w, cairo_t* cr, MeterType type) {
 207         float r,g,b;
 208         switch(type) {
 209                 case MeterVU:
 210                         if (rgba_p_from_style("meterstripVU", &r, &g, &b, "bg")) {
 211                                 cairo_set_source_rgb (cr, r, g, b);
 212                         } else {
 213                                 cairo_set_source_rgb (cr, 1.0, 1.0, 0.85);
 214                         }
 215                         break;
 216                 case MeterIEC1DIN:
 217                 case MeterIEC1NOR:
 218                 case MeterIEC2BBC:
 219                 case MeterIEC2EBU:
 220                 case MeterK14:
 221                 case MeterK20:
 222                         if (rgba_p_from_style("meterstripPPM", &r, &g, &b, "bg")) {
 223                                 cairo_set_source_rgb (cr, r, g, b);
 224                         } else {
 225                                 cairo_set_source_rgb (cr, 0.1, 0.1, 0.1);
 226                         }
 227                         break;
 228                 default:
 229                         {
 230                         Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_ACTIVE);
 231                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 232                         }
 233                         break;
 234         }
 235 }
 236
 237 static void set_fg_color(Gtk::Widget& w, MeterType type, Gdk::Color * c) {
 238         float r,g,b;
 239         switch(type) {
 240                 case MeterVU:
 241                         if (rgba_p_from_style("meterstripVU", &r, &g, &b)) {
 242                                 c->set_rgb_p(r, g, b);
 243                         } else {
 244                                 c->set_rgb_p(0.0, 0.0, 0.0);
 245                         }
 246                         break;
 247                 default:
 248                         if (rgba_p_from_style("meterstripPPM", &r, &g, &b)) {
 249                                 c->set_rgb_p(r, g, b);
 250                         } else {
 251                                 c->set_rgb_p(1.0, 1.0, 1.0);
 252                         }
 253                         break;
 254         }
 255 }
 256
 257 static cairo_pattern_t*
 258 meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> types)
 259 {
 260         Glib::RefPtr<Gdk::Window> win (w.get_window());
 261
 262         bool background;
 263         gint width, height;
 264         win->get_size (width, height);
 265         background = types.size() == 0
 266                 || w.get_name().substr(w.get_name().length() - 4) == "Left"
 267                 || w.get_name().substr(w.get_name().length() - 5) == "Right";
 268
 269         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 270         cairo_t* cr = cairo_create (surface);
 271
 272         cairo_move_to (cr, 0, 0);
 273         cairo_rectangle (cr, 0, 0, width, height);
 274
 275         if (background) {
 276                 /* meterbridge */
 277                 set_bg_color(w, cr, type);
 278         } else {
 279                 /* mixer */
 280                 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
 281                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 282         }
 283         cairo_fill (cr);
 284
 285         height = min(max_pattern_metric_size, height);
 286         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 287
 288         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 289
 290                 Gdk::Color c;
 291                 if (types.size() > 1 && (*i) == DataType::MIDI) {
 292                         /* we're overlaying more than 1 set of marks, so use different colours */
 293                         c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 294                 } else if (background) {
 295                         set_fg_color(w, type, &c);
 296                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 297                 } else {
 298                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 299                 }
 300                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 301
 302                 // tick-maker position in dBFS, line-thickness
 303                 std::map<float,float> points;
 304
 305                 switch (*i) {
 306                 case DataType::AUDIO:
 307
 308                         switch (type) {
 309                                 case MeterK14:
 310                                         points.insert (std::pair<float,float>(-54.0f, 1.0));
 311                                         points.insert (std::pair<float,float>(-44.0f, 1.0));
 312                                         points.insert (std::pair<float,float>(-34.0f, 1.0));
 313                                         points.insert (std::pair<float,float>(-24.0f, 1.0));
 314                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 315                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 316                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 317                                         points.insert (std::pair<float,float>(-11.0f, 1.0));
 318                                         points.insert (std::pair<float,float>( -8.0f, 1.0));
 319                                         points.insert (std::pair<float,float>( -4.0f, 1.0));
 320                                         points.insert (std::pair<float,float>(  0.0f, 1.0));
 321                                         break;
 322                                 case MeterK20:
 323                                         points.insert (std::pair<float,float>(-60.0f, 1.0));
 324                                         points.insert (std::pair<float,float>(-50.0f, 1.0));
 325                                         points.insert (std::pair<float,float>(-40.0f, 1.0));
 326                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 327                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 328                                         points.insert (std::pair<float,float>(-23.0f, 1.0));
 329                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 330                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 331                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 332                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 333                                         points.insert (std::pair<float,float>( -5.0f, 1.0));
 334                                         points.insert (std::pair<float,float>(  0.0f, 1.0));
 335                                         break;
 336                                 case MeterIEC2EBU:
 337                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 338                                         points.insert (std::pair<float,float>(-28.0f, 0.5));
 339                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 340                                         points.insert (std::pair<float,float>(-24.0f, 0.5));
 341                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 342                                         points.insert (std::pair<float,float>(-20.0f, 0.5));
 343                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 344                                         points.insert (std::pair<float,float>(-16.0f, 0.5));
 345                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 346                                         points.insert (std::pair<float,float>(-12.0f, 0.5));
 347                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 348                                         points.insert (std::pair<float,float>( -9.0f, 0.8));
 349                                         points.insert (std::pair<float,float>( -8.0f, 0.5));
 350                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 351                                         break;
 352                                 case MeterIEC2BBC:
 353                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 354                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 355                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 356                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 357                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 358                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 359                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 360                                         break;
 361                                 case MeterIEC1NOR:
 362                                         points.insert (std::pair<float,float>(-60.0f, 1.0)); // -42
 363                                         points.insert (std::pair<float,float>(-57.0f, 0.5));
 364                                         points.insert (std::pair<float,float>(-54.0f, 1.0));
 365                                         points.insert (std::pair<float,float>(-51.0f, 0.5));
 366                                         points.insert (std::pair<float,float>(-48.0f, 1.0));
 367                                         points.insert (std::pair<float,float>(-45.0f, 0.5));
 368                                         points.insert (std::pair<float,float>(-42.0f, 1.0));
 369                                         points.insert (std::pair<float,float>(-39.0f, 0.5));
 370                                         points.insert (std::pair<float,float>(-36.0f, 1.0));
 371
 372                                         points.insert (std::pair<float,float>(-33.0f, 0.5));
 373                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 374                                         points.insert (std::pair<float,float>(-27.0f, 0.5));
 375                                         points.insert (std::pair<float,float>(-24.0f, 1.0));
 376                                         points.insert (std::pair<float,float>(-21.0f, 0.5));
 377
 378                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 379                                         points.insert (std::pair<float,float>(-15.0f, 0.5));
 380                                         points.insert (std::pair<float,float>(-12.0f, 0.5));
 381                                         points.insert (std::pair<float,float>( -9.0f, 1.0));
 382                                         points.insert (std::pair<float,float>( -6.0f, 0.5));
 383                                         break;
 384                                 case MeterIEC1DIN:
 385                                         points.insert (std::pair<float,float>( -3.0f, 0.5)); // "200%"
 386                                         points.insert (std::pair<float,float>( -4.0f, 1.0));
 387                                         points.insert (std::pair<float,float>( -5.0f, 0.5));
 388                                         points.insert (std::pair<float,float>( -6.0f, 0.5));
 389                                         points.insert (std::pair<float,float>( -7.0f, 0.5));
 390                                         points.insert (std::pair<float,float>( -8.0f, 0.5));
 391                                         points.insert (std::pair<float,float>( -9.0f, 1.0)); // "100%"
 392                                         points.insert (std::pair<float,float>(-10.0f, 0.5));
 393                                         points.insert (std::pair<float,float>(-11.0f, 0.5));
 394                                         points.insert (std::pair<float,float>(-12.0f, 0.5));
 395                                         points.insert (std::pair<float,float>(-13.0f, 0.5));
 396                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 397                                         points.insert (std::pair<float,float>(-15.0f, 0.8)); // "50%"
 398                                         points.insert (std::pair<float,float>(-18.0f, 0.8)); // "-9"
 399                                         points.insert (std::pair<float,float>(-19.0f, 1.0));
 400                                         points.insert (std::pair<float,float>(-24.0f, 0.5));
 401                                         points.insert (std::pair<float,float>(-29.0f, 1.0)); // "-20", "10%"
 402                                         points.insert (std::pair<float,float>(-34.0f, 0.5)); // -25
 403                                         //points.insert (std::pair<float,float>(-35.0f, 0.5)); // "5%" " -20"
 404                                         points.insert (std::pair<float,float>(-39.0f, 1.0));
 405                                         points.insert (std::pair<float,float>(-49.0f, 1.0));
 406                                         points.insert (std::pair<float,float>(-54.0f, 0.5));
 407                                         points.insert (std::pair<float,float>(-59.0f, 1.0));
 408                                         break;
 409                                 case MeterVU:
 410                                         points.insert (std::pair<float,float>(-17.0f, 1.0)); //+3 VU
 411                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 412                                         points.insert (std::pair<float,float>(-19.0f, 1.0));
 413                                         points.insert (std::pair<float,float>(-19.5f, 0.5));
 414                                         points.insert (std::pair<float,float>(-20.0f, 1.0)); // 0 VU
 415                                         points.insert (std::pair<float,float>(-20.5f, 0.5));
 416                                         points.insert (std::pair<float,float>(-21.0f, 1.0));
 417                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 418                                         points.insert (std::pair<float,float>(-23.0f, 1.0)); //-3 VU
 419                                         points.insert (std::pair<float,float>(-24.0f, 0.5));
 420                                         points.insert (std::pair<float,float>(-25.0f, 1.0));
 421                                         points.insert (std::pair<float,float>(-26.0f, 0.5));
 422                                         points.insert (std::pair<float,float>(-27.0f, 1.0)); //-7 VU
 423                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 424                                         points.insert (std::pair<float,float>(-35.0f, 0.5));
 425                                         points.insert (std::pair<float,float>(-40.0f, 1.0));
 426                                         break;
 427
 428                                 default:
 429                                         points.insert (std::pair<float,float>(-60, 0.5));
 430                                         points.insert (std::pair<float,float>(-50, 1.0));
 431                                         points.insert (std::pair<float,float>(-40, 1.0));
 432                                         points.insert (std::pair<float,float>(-30, 1.0));
 433                                         if (Config->get_meter_line_up_level() == MeteringLineUp24) {
 434                                                 points.insert (std::pair<float,float>(-24, 1.0));
 435                                         } else {
 436                                                 points.insert (std::pair<float,float>(-25, 1.0));
 437                                         }
 438                                         points.insert (std::pair<float,float>(-20, 1.0));
 439
 440                                         points.insert (std::pair<float,float>(-19, 0.5));
 441                                         points.insert (std::pair<float,float>(-18, 1.0));
 442                                         points.insert (std::pair<float,float>(-17, 0.5));
 443                                         points.insert (std::pair<float,float>(-16, 0.5));
 444                                         points.insert (std::pair<float,float>(-15, 1.0));
 445
 446                                         points.insert (std::pair<float,float>(-14, 0.5));
 447                                         points.insert (std::pair<float,float>(-13, 0.5));
 448                                         points.insert (std::pair<float,float>(-12, 0.5));
 449                                         points.insert (std::pair<float,float>(-11, 0.5));
 450                                         points.insert (std::pair<float,float>(-10, 1.0));
 451
 452                                         points.insert (std::pair<float,float>( -9, 1.0));
 453                                         points.insert (std::pair<float,float>( -8, 0.5));
 454                                         points.insert (std::pair<float,float>( -7, 0.5));
 455                                         points.insert (std::pair<float,float>( -6, 0.5));
 456                                         points.insert (std::pair<float,float>( -5, 1.0));
 457                                         points.insert (std::pair<float,float>( -4, 0.5));
 458                                         points.insert (std::pair<float,float>( -3, 1.0));
 459                                         points.insert (std::pair<float,float>( -2, 0.5));
 460                                         points.insert (std::pair<float,float>( -1, 0.5));
 461
 462                                         points.insert (std::pair<float,float>(  0, 1.0));
 463                                         points.insert (std::pair<float,float>(  1, 0.5));
 464                                         points.insert (std::pair<float,float>(  2, 0.5));
 465                                         points.insert (std::pair<float,float>(  3, 1.0));
 466                                         points.insert (std::pair<float,float>(  4, 0.5));
 467                                         points.insert (std::pair<float,float>(  5, 0.5));
 468                                         break;
 469                         }
 470                         break;
 471
 472                 case DataType::MIDI:
 473                         points.insert (std::pair<float,float>(  0, 1.0));
 474                         points.insert (std::pair<float,float>( 16, 0.5));
 475                         points.insert (std::pair<float,float>( 32, 0.5));
 476                         points.insert (std::pair<float,float>( 48, 0.5));
 477                         points.insert (std::pair<float,float>( 64, 1.0));
 478                         points.insert (std::pair<float,float>( 80, 0.5));
 479                         points.insert (std::pair<float,float>( 96, 0.5));
 480                         points.insert (std::pair<float,float>(100, 1.0));
 481                         points.insert (std::pair<float,float>(112, 0.5));
 482                         points.insert (std::pair<float,float>(127, 1.0));
 483                         break;
 484                 }
 485
 486                 for (std::map<float,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
 487                         cairo_set_line_width (cr, (j->second));
 488
 489                         float fraction = 0;
 490                         gint pos;
 491
 492                         switch (*i) {
 493                         case DataType::AUDIO:
 494                                 fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
 495
 496                                 pos = height - (gint) floor (height * fraction);
 497                                 pos = max (pos, 1);
 498                                 cairo_move_to(cr, 0, pos + .5);
 499                                 cairo_line_to(cr, 3, pos + .5);
 500                                 cairo_stroke (cr);
 501                                 break;
 502                         case DataType::MIDI:
 503                                 fraction = (j->first) / 127.0;
 504                                 pos = 1 + height - (gint) floor (height * fraction);
 505                                 pos = min (pos, height);
 506                                 cairo_arc(cr, 1.5, pos + .5, 1.0, 0, 2 * M_PI);
 507                                 cairo_fill(cr);
 508                                 break;
 509                         }
 510                 }
 511         }
 512
 513         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 514
 515         cairo_destroy (cr);
 516         cairo_surface_destroy (surface);
 517
 518         return pattern;
 519 }
 520
 521 static cairo_pattern_t*
 522 meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
 523 {
 524         Glib::RefPtr<Gdk::Window> win (w.get_window());
 525
 526         bool tickleft, tickright;
 527         bool background;
 528         int overlay_midi = 1;
 529         gint width, height;
 530         win->get_size (width, height);
 531
 532         tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
 533         tickright = w.get_name().substr(w.get_name().length() - 5) == "Right";
 534         background = types.size() == 0 || tickleft || tickright;
 535
 536         if (!tickleft && !tickright) {
 537                 tickright = true;
 538         }
 539
 540         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 541         cairo_t* cr = cairo_create (surface);
 542         Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
 543
 544         Pango::AttrList audio_font_attributes;
 545         Pango::AttrList midi_font_attributes;
 546         Pango::AttrList unit_font_attributes;
 547
 548         Pango::AttrFontDesc* font_attr;
 549         Pango::FontDescription font;
 550
 551         font = Pango::FontDescription ("ArdourMono");
 552         double fixfontsize = 81920.0 / (double) ARDOUR::Config->get_font_scale();
 553
 554         font.set_weight (Pango::WEIGHT_NORMAL);
 555         font.set_size (9.0 * PANGO_SCALE * fixfontsize);
 556         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 557         audio_font_attributes.change (*font_attr);
 558         delete font_attr;
 559
 560         font.set_weight (Pango::WEIGHT_ULTRALIGHT);
 561         font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
 562         font.set_size (8.0 * PANGO_SCALE * fixfontsize);
 563         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 564         midi_font_attributes.change (*font_attr);
 565         delete font_attr;
 566
 567         font.set_size (6.0 * PANGO_SCALE * fixfontsize);
 568         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 569         unit_font_attributes.change (*font_attr);
 570         delete font_attr;
 571
 572         cairo_move_to (cr, 0, 0);
 573         cairo_rectangle (cr, 0, 0, width, height);
 574         if (background) {
 575                 /* meterbridge */
 576                 set_bg_color(w, cr, type);
 577         } else {
 578                 /* mixer */
 579                 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
 580                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 581         }
 582         cairo_fill (cr);
 583
 584         cairo_set_line_width (cr, 1.0);
 585
 586         height = min(max_pattern_metric_size, height);
 587         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 588         Gdk::Color c; // default text color
 589
 590         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 591
 592                 if (types.size() > 1 && (*i) == DataType::MIDI && overlay_midi == 0) {
 593                         continue;
 594                 }
 595
 596                 if (types.size() > 1 && (*i) == DataType::MIDI) {
 597                         /* we're overlaying more than 1 set of marks, so use different colours */
 598                         c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 599                 } else if (background) {
 600                         set_fg_color(w, type, &c);
 601                 } else {
 602                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 603                 }
 604
 605                 std::map<float,string> points; // map: label-pos in dBFS, label-text
 606
 607                 switch (*i) {
 608                 case DataType::AUDIO:
 609                         layout->set_attributes (audio_font_attributes);
 610                         switch (type) {
 611                                 case MeterK14:
 612                                         overlay_midi = 0;
 613                                         points.insert (std::pair<float,string>(-54.0f, "-40"));
 614                                         points.insert (std::pair<float,string>(-44.0f, "-30"));
 615                                         points.insert (std::pair<float,string>(-34.0f, "-20"));
 616                                         points.insert (std::pair<float,string>(-24.0f, "-10"));
 617                                         points.insert (std::pair<float,string>(-20.0f,  "-6"));
 618                                         points.insert (std::pair<float,string>(-17.0f,  "-3"));
 619                                         points.insert (std::pair<float,string>(-14.0f,  " 0"));
 620                                         points.insert (std::pair<float,string>(-11.0f,  "+3"));
 621                                         points.insert (std::pair<float,string>( -8.0f,  "+6"));
 622                                         points.insert (std::pair<float,string>( -4.0f, "+10"));
 623                                         points.insert (std::pair<float,string>(  0.0f, "+14"));
 624                                         break;
 625                                 case MeterK20:
 626                                         overlay_midi = 0;
 627                                         points.insert (std::pair<float,string>(-60.0f, "-40"));
 628                                         points.insert (std::pair<float,string>(-50.0f, "-30"));
 629                                         points.insert (std::pair<float,string>(-40.0f, "-20"));
 630                                         points.insert (std::pair<float,string>(-30.0f, "-10"));
 631                                         points.insert (std::pair<float,string>(-26.0f,  "-6"));
 632                                         points.insert (std::pair<float,string>(-23.0f,  "-3"));
 633                                         points.insert (std::pair<float,string>(-20.0f,  " 0"));
 634                                         points.insert (std::pair<float,string>(-17.0f,  "+3"));
 635                                         points.insert (std::pair<float,string>(-14.0f,  "+6"));
 636                                         points.insert (std::pair<float,string>(-10.0f, "+10"));
 637                                         points.insert (std::pair<float,string>( -5.0f, "+15"));
 638                                         points.insert (std::pair<float,string>(  0.0f, "+20"));
 639                                         break;
 640                                 default:
 641                                 case MeterPeak:
 642                                 case MeterKrms:
 643                                         points.insert (std::pair<float,string>(-50.0f, "-50"));
 644                                         points.insert (std::pair<float,string>(-40.0f, "-40"));
 645                                         points.insert (std::pair<float,string>(-30.0f, "-30"));
 646                                         points.insert (std::pair<float,string>(-20.0f, "-20"));
 647                                         if (types.size() == 1) {
 648                                                 if (Config->get_meter_line_up_level() == MeteringLineUp24) {
 649                                                         points.insert (std::pair<float,string>(-24.0f, "-24"));
 650                                                 } else {
 651                                                         points.insert (std::pair<float,string>(-25.0f, "-25"));
 652                                                 }
 653                                                 points.insert (std::pair<float,string>(-15.0f, "-15"));
 654                                         }
 655                                         points.insert (std::pair<float,string>(-18.0f, "-18"));
 656                                         points.insert (std::pair<float,string>(-10.0f, "-10"));
 657                                         points.insert (std::pair<float,string>( -5.0f, "-5"));
 658                                         points.insert (std::pair<float,string>( -3.0f, "-3"));
 659                                         points.insert (std::pair<float,string>(  0.0f, "+0"));
 660                                         points.insert (std::pair<float,string>(  3.0f, "+3"));
 661                                         break;
 662
 663                                 case MeterIEC2EBU:
 664                                         overlay_midi = 3;
 665                                         points.insert (std::pair<float,string>(-30.0f, "-12"));
 666                                         points.insert (std::pair<float,string>(-26.0f, "-8"));
 667                                         points.insert (std::pair<float,string>(-22.0f, "-4"));
 668                                         points.insert (std::pair<float,string>(-18.0f, "TST"));
 669                                         points.insert (std::pair<float,string>(-14.0f, "+4"));
 670                                         points.insert (std::pair<float,string>(-10.0f, "+8"));
 671                                         points.insert (std::pair<float,string>( -6.0f, "+12"));
 672                                         break;
 673
 674                                 case MeterIEC2BBC:
 675                                         overlay_midi = 3;
 676                                         points.insert (std::pair<float,string>(-30.0f, " 1 "));
 677                                         points.insert (std::pair<float,string>(-26.0f, " 2 "));
 678                                         points.insert (std::pair<float,string>(-22.0f, " 3 "));
 679                                         points.insert (std::pair<float,string>(-18.0f, " 4 "));
 680                                         points.insert (std::pair<float,string>(-14.0f, " 5 "));
 681                                         points.insert (std::pair<float,string>(-10.0f, " 6 "));
 682                                         points.insert (std::pair<float,string>( -6.0f, " 7 "));
 683                                         break;
 684
 685                                 case MeterIEC1NOR:
 686                                         overlay_midi = 0;
 687                                         //points.insert (std::pair<float,string>(-60.0f, "-42"));
 688                                         points.insert (std::pair<float,string>(-54.0f, "-36"));
 689                                         points.insert (std::pair<float,string>(-48.0f, "-30"));
 690                                         points.insert (std::pair<float,string>(-42.0f, "-24"));
 691                                         points.insert (std::pair<float,string>(-36.0f, "-18"));
 692
 693                                         //points.insert (std::pair<float,string>(-33.0f, "-15"));
 694                                         points.insert (std::pair<float,string>(-30.0f, "-12"));
 695                                         //points.insert (std::pair<float,string>(-27.0f, "-9"));
 696                                         points.insert (std::pair<float,string>(-24.0f, "-6"));
 697                                         //points.insert (std::pair<float,string>(-21.0f, "-3"));
 698
 699                                         points.insert (std::pair<float,string>(-18.0f, "TST"));
 700                                         //points.insert (std::pair<float,string>(-15.0f, "+3"));
 701                                         points.insert (std::pair<float,string>(-12.0f, "+6"));
 702                                         points.insert (std::pair<float,string>( -9.0f, "+9"));
 703                                         //points.insert (std::pair<float,string>( -6.0f, "+12"));
 704                                         break;
 705
 706                                 case MeterIEC1DIN:
 707                                         overlay_midi = 2;
 708                                         //points.insert (std::pair<float,string>( -3.0f, "200%"));
 709                                         points.insert (std::pair<float,string>( -4.0f, "+5"));
 710                                         points.insert (std::pair<float,string>( -9.0f, "0")); // "100%";
 711                                         points.insert (std::pair<float,string>(-14.0f, "-5"));
 712                                         //points.insert (std::pair<float,string>(-15.0f, "50%"));
 713                                         //points.insert (std::pair<float,string>(-18.0f, "-9"));
 714                                         points.insert (std::pair<float,string>(-19.0f, "-10")); // "30%"
 715                                         points.insert (std::pair<float,string>(-29.0f, "-20")); // "10%"
 716                                         //points.insert (std::pair<float,string>(-35.0f, "5%")); // "5%"
 717                                         points.insert (std::pair<float,string>(-39.0f, "-30"));
 718                                         //points.insert (std::pair<float,string>(-49.0f, "1%"));
 719                                         points.insert (std::pair<float,string>(-59.0f, "-50"));
 720                                         break;
 721
 722                                 case MeterVU:
 723                                         overlay_midi = 0;
 724                                         points.insert (std::pair<float,string>(-17.0f, "+3"));
 725                                         points.insert (std::pair<float,string>(-18.0f, "+2"));
 726                                         points.insert (std::pair<float,string>(-19.0f, "+1"));
 727                                         points.insert (std::pair<float,string>(-20.0f, " 0"));
 728                                         points.insert (std::pair<float,string>(-21.0f, "-1"));
 729                                         points.insert (std::pair<float,string>(-22.0f, "-2"));
 730                                         points.insert (std::pair<float,string>(-23.0f, "-3"));
 731                                         points.insert (std::pair<float,string>(-25.0f, "-5"));
 732                                         points.insert (std::pair<float,string>(-27.0f, "-7"));
 733                                         points.insert (std::pair<float,string>(-30.0f, "-10"));
 734                                         points.insert (std::pair<float,string>(-40.0f, "-20"));
 735                                         break;
 736                         }
 737                         break;
 738                 case DataType::MIDI:
 739                         layout->set_attributes (midi_font_attributes);
 740                         if (types.size() == 1) {
 741                                 points.insert (std::pair<float,string>(  0, "0"));
 742                                 points.insert (std::pair<float,string>( 16,  "16"));
 743                                 points.insert (std::pair<float,string>( 32,  "32"));
 744                                 points.insert (std::pair<float,string>( 48,  "48"));
 745                                 points.insert (std::pair<float,string>( 64,  "64"));
 746                                 points.insert (std::pair<float,string>( 80,  "80"));
 747                                 points.insert (std::pair<float,string>( 96,  "96"));
 748                                 points.insert (std::pair<float,string>(100, "100"));
 749                                 points.insert (std::pair<float,string>(112, "112"));
 750                         } else {
 751                                 switch (overlay_midi) {
 752                                         case 1:
 753                                                 /* labels that don't overlay with dBFS */
 754                                                 points.insert (std::pair<float,string>(  0, "0"));
 755                                                 points.insert (std::pair<float,string>( 24, "24"));
 756                                                 points.insert (std::pair<float,string>( 48, "48"));
 757                                                 points.insert (std::pair<float,string>( 72, "72"));
 758                                                 points.insert (std::pair<float,string>(127, "127"));
 759                                                 break;
 760                                         case 2:
 761                                                 /* labels that don't overlay with DIN */
 762                                                 points.insert (std::pair<float,string>(  0, "0"));
 763                                                 points.insert (std::pair<float,string>( 16,  "16"));
 764                                                 points.insert (std::pair<float,string>( 40,  "40"));
 765                                                 points.insert (std::pair<float,string>( 64,  "64"));
 766                                                 points.insert (std::pair<float,string>(112, "112"));
 767                                                 points.insert (std::pair<float,string>(127, "127"));
 768                                                 break;
 769                                         case 3:
 770                                                 /* labels that don't overlay with BBC nor EBU*/
 771                                                 points.insert (std::pair<float,string>(  0, "0"));
 772                                                 points.insert (std::pair<float,string>( 16, "16"));
 773                                                 points.insert (std::pair<float,string>( 56, "56"));
 774                                                 points.insert (std::pair<float,string>( 72, "72"));
 775                                                 points.insert (std::pair<float,string>(112, "112"));
 776                                                 points.insert (std::pair<float,string>(127, "127"));
 777                                         default:
 778                                                 break;
 779                                 }
 780                         }
 781                         break;
 782                 }
 783
 784                 gint pos;
 785
 786                 for (std::map<float,string>::const_iterator j = points.begin(); j != points.end(); ++j) {
 787                         float fraction = 0;
 788                         bool align_center = background; // this is true for meterbridge meters w/ fixed background
 789                         switch (*i) {
 790                                 case DataType::AUDIO:
 791                                         fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
 792
 793                                         pos = height - (gint) floor (height * fraction);
 794                                         pos = max (pos, 1);
 795                                         if (tickleft) {
 796                                                 cairo_move_to(cr, width-1.5, pos + .5);
 797                                                 cairo_line_to(cr, width, pos + .5);
 798                                                 cairo_stroke (cr);
 799                                         } else if (tickright) {
 800                                                 cairo_move_to(cr, 0, pos + .5);
 801                                                 cairo_line_to(cr, 1.5, pos + .5);
 802                                                 cairo_stroke (cr);
 803                                         }
 804                                         break;
 805
 806                                 case DataType::MIDI:
 807                                         align_center = false; // don't bleed into legend
 808                                         fraction = (j->first) / 127.0;
 809                                         pos = 1 + height - (gint) rintf (height * fraction);
 810                                         pos = min (pos, height);
 811                                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 812                                         if (tickleft) {
 813                                                 cairo_arc(cr, width - 2.0, pos + .5, 1.0, 0, 2 * M_PI);
 814                                                 cairo_fill(cr);
 815                                         } else if (tickright) {
 816                                                 cairo_arc(cr, 3, pos + .5, 1.0, 0, 2 * M_PI);
 817                                                 cairo_fill(cr);
 818                                         }
 819                                         break;
 820                         }
 821
 822                         layout->set_text(j->second.c_str());
 823
 824                         int tw, th;
 825                         layout->get_pixel_size(tw, th);
 826
 827                         int p = pos - (th / 2) - 1;
 828                         p = min (p, height - th);
 829                         p = max (p, 0);
 830
 831                         if (align_center) {
 832                                 cairo_move_to (cr, (width-tw)/2.0, p);
 833                         } else {
 834                                 cairo_move_to (cr, width-3-tw, p);
 835                         }
 836
 837                         cairo_set_line_width(cr, 0.12);
 838                         cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
 839                         pango_cairo_layout_path(cr, layout->gobj());
 840                         cairo_stroke_preserve (cr);
 841                         cairo_set_line_width(cr, 1.0);
 842
 843                         if ((*i) == DataType::AUDIO) {
 844                                 mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
 845                         } else {
 846                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 847                         }
 848
 849                         pango_cairo_show_layout (cr, layout->gobj());
 850                         cairo_new_path(cr);
 851                 }
 852         }
 853
 854         // add legend
 855         if (types.size() == 1 || overlay_midi == 0) {
 856                 int tw, th;
 857                 layout->set_attributes (unit_font_attributes);
 858                 switch (types.at(0)) {
 859                         case DataType::AUDIO:
 860                                 switch (type) {
 861                                         case MeterK20:
 862                                                 layout->set_text("K20");
 863                                                 break;
 864                                         case MeterK14:
 865                                                 layout->set_text("K14");
 866                                                 break;
 867                                         default:
 868                                         case MeterPeak:
 869                                         case MeterKrms:
 870                                                 layout->set_text("dBFS");
 871                                                 break;
 872                                         case MeterIEC2EBU:
 873                                                 layout->set_text("EBU");
 874                                                 break;
 875                                         case MeterIEC2BBC:
 876                                                 layout->set_text("BBC");
 877                                                 break;
 878                                         case MeterIEC1DIN:
 879                                                 layout->set_text("DIN");
 880                                                 break;
 881                                         case MeterIEC1NOR:
 882                                                 layout->set_text("NOR");
 883                                                 break;
 884                                         case MeterVU:
 885                                                 layout->set_text("VU");
 886                                                 break;
 887                                 }
 888                                 layout->get_pixel_size(tw, th);
 889                                 break;
 890                         case DataType::MIDI:
 891                                 layout->set_text("mid");
 892                                 layout->get_pixel_size(tw, th);
 893                                 break;
 894                 }
 895                 if (!background) {
 896                         c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 897                 }
 898                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 899                 if (tickleft) {
 900                         cairo_move_to (cr, width - 2 - tw, height - th - 0.5);
 901                 } else {
 902                         cairo_move_to (cr, 2, height - th - 0.5);
 903                 }
 904                 pango_cairo_show_layout (cr, layout->gobj());
 905         }
 906
 907         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 908
 909         cairo_destroy (cr);
 910         cairo_surface_destroy (surface);
 911
 912         return pattern;
 913 }
 914
 915 gint
 916 ArdourMeter::meter_expose_ticks (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mta)
 917 {
 918         Glib::RefPtr<Gdk::Window> win (mta->get_window());
 919         cairo_t* cr;
 920
 921         cr = gdk_cairo_create (win->gobj());
 922
 923         /* clip to expose area */
 924
 925         gdk_cairo_rectangle (cr, &ev->area);
 926         cairo_clip (cr);
 927
 928         cairo_pattern_t* pattern;
 929         const MeterMatricsMapKey key (mta->get_name(), type, types_to_bit(types));
 930         MetricPatternMap::iterator i = ticks_patterns.find (key);
 931
 932         if (i == ticks_patterns.end()) {
 933                 pattern = meter_render_ticks (*mta, type, types);
 934                 ticks_patterns[key] = pattern;
 935         } else {
 936                 pattern = i->second;
 937         }
 938
 939         cairo_move_to (cr, 0, 0);
 940         cairo_set_source (cr, pattern);
 941
 942         gint width, height;
 943         win->get_size (width, height);
 944
 945         cairo_rectangle (cr, 0, 0, width, height);
 946         cairo_fill (cr);
 947
 948         cairo_destroy (cr);
 949
 950         return true;
 951 }
 952
 953 gint
 954 ArdourMeter::meter_expose_metrics (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mma)
 955 {
 956         Glib::RefPtr<Gdk::Window> win (mma->get_window());
 957         cairo_t* cr;
 958
 959         cr = gdk_cairo_create (win->gobj());
 960
 961         /* clip to expose area */
 962
 963         gdk_cairo_rectangle (cr, &ev->area);
 964         cairo_clip (cr);
 965
 966         cairo_pattern_t* pattern;
 967         const MeterMatricsMapKey key (mma->get_name(), type, types_to_bit(types));
 968         MetricPatternMap::iterator i = metric_patterns.find (key);
 969
 970         if (i == metric_patterns.end()) {
 971                 pattern = meter_render_metrics (*mma, type, types);
 972                 metric_patterns[key] = pattern;
 973         } else {
 974                 pattern = i->second;
 975         }
 976
 977         cairo_move_to (cr, 0, 0);
 978         cairo_set_source (cr, pattern);
 979
 980         gint width, height;
 981         win->get_size (width, height);
 982
 983         cairo_rectangle (cr, 0, 0, width, height);
 984         cairo_fill (cr);
 985
 986         cairo_destroy (cr);
 987
 988         return true;
 989 }
 990
 991 void
 992 ArdourMeter::meter_clear_pattern_cache(int which) {
 993         MetricPatternMap::iterator i = metric_patterns.begin();
 994         MetricPatternMap::iterator j = ticks_patterns.begin();
 995
 996         while (i != metric_patterns.end()) {
 997                 int m = 4;
 998                 MeterMatricsMapKey const * const key = &(i->first);
 999                 std::string n = key->_n;
1000                 if (n.substr(n.length() - 4) == "Left")  { m = 1; }
1001                 if (n.substr(n.length() - 5) == "Right") { m = 2; }
1002                 if (which & m) {
1003                         cairo_pattern_destroy(i->second);
1004                         metric_patterns.erase(i++);
1005                 } else {
1006                         ++i;
1007                 }
1008         }
1009
1010         while (j != ticks_patterns.end()) {
1011                 int m = 4;
1012                 MeterMatricsMapKey const * const key = &(j->first);
1013                 std::string n = key->_n;
1014                 if (n.substr(n.length() - 4) == "Left")  { m = 1; }
1015                 if (n.substr(n.length() - 5) == "Right") { m = 2; }
1016                 if (which & m) {
1017                         cairo_pattern_destroy(j->second);
1018                         ticks_patterns.erase(j++);
1019                 } else {
1020                         ++j;
1021                 }
1022         }
1023         RedrawMetrics();
1024 }