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