cinelerra-5.1/plugins/graphic/graphic.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2011 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcdisplayinfo.h"
  23 #include "bcsignals.h"
  24 #include "clip.h"
  25 #include "cursors.h"
  26 #include "bchash.h"
  27 #include "filexml.h"
  28 #include "graphic.h"
  29 #include "keys.h"
  30 #include "language.h"
  31 #include "samples.h"
  32 #include "theme.h"
  33 #include "units.h"
  34 #include "vframe.h"
  35
  36 #include <math.h>
  37 #include <string.h>
  38
  39
  40 // Canvas parameters
  41 #define MAJOR_DIVISIONS 7
  42 #define MINOR_DIVISIONS 5
  43 #define LINE_W4 12
  44 #define LINE_W3 10
  45 #define LINE_W2 5
  46 #define LINE_W1 2
  47
  48
  49
  50
  51
  52
  53
  54
  55 REGISTER_PLUGIN(GraphicEQ)
  56
  57
  58
  59
  60
  61
  62
  63 GraphicPoint::GraphicPoint()
  64 {
  65         freq = 0;
  66         value = 0.0;
  67 }
  68
  69
  70
  71
  72
  73
  74
  75
  76 GraphicConfig::GraphicConfig()
  77 {
  78         window_size = 4096;
  79 //      wetness = INFINITYGAIN;
  80 }
  81
  82 GraphicConfig::~GraphicConfig()
  83 {
  84         points.remove_all_objects();
  85 }
  86
  87
  88 int GraphicConfig::equivalent(GraphicConfig &that)
  89 {
  90         if(that.points.size() != points.size() ||
  91                 window_size != that.window_size) return 0;
  92
  93         for(int i = 0; i < points.size(); i++)
  94         {
  95                 if(that.points.get(i)->freq != points.get(i)->freq ||
  96                         !EQUIV(that.points.get(i)->value, points.get(i)->value))
  97                         return 0;
  98         }
  99
 100
 101         return 1;
 102 }
 103
 104 void GraphicConfig::copy_from(GraphicConfig &that)
 105 {
 106         points.remove_all_objects();
 107         for(int i = 0; i < that.points.size(); i++)
 108         {
 109                 GraphicPoint *point;
 110                 points.append(point = new GraphicPoint);
 111                 point->freq = that.points.get(i)->freq;
 112                 point->value = that.points.get(i)->value;
 113         }
 114
 115         window_size = that.window_size;
 116 }
 117
 118 void GraphicConfig::interpolate(GraphicConfig &prev,
 119         GraphicConfig &next,
 120         int64_t prev_frame,
 121         int64_t next_frame,
 122         int64_t current_frame)
 123 {
 124         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
 125         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
 126
 127 // Get current set of points from previous configuration
 128         copy_from(prev);
 129
 130
 131 // Interpolate between current set of points and next set
 132         for(int i = 0; i < MIN(next.points.size(), points.size()); i++)
 133         {
 134                 points.get(i)->freq = (int)(prev.points.get(i)->freq *
 135                         prev_scale +
 136                         next.points.get(i)->freq *
 137                         next_scale);
 138                 points.get(i)->value = prev.points.get(i)->value *
 139                         prev_scale +
 140                         next.points.get(i)->value *
 141                         next_scale;
 142         }
 143 }
 144
 145
 146 void GraphicConfig::delete_point(int number)
 147 {
 148         points.remove_object_number(number);
 149 }
 150
 151
 152
 153
 154
 155
 156
 157 GraphicCanvas::GraphicCanvas(GraphicEQ *plugin,
 158         GraphicGUI *gui,
 159         int x,
 160         int y,
 161         int w,
 162         int h)
 163  : BC_SubWindow(x,
 164         y,
 165         w,
 166         h,
 167         BLACK)
 168 {
 169         this->plugin = plugin;
 170         this->gui = gui;
 171         state = GraphicCanvas::NONE;
 172 }
 173
 174 GraphicCanvas::~GraphicCanvas()
 175 {
 176         temp_points.remove_all_objects();
 177 }
 178
 179 int GraphicCanvas::button_press_event()
 180 {
 181         process(1, 0, 0);
 182         if(state == GraphicCanvas::DRAG_POINT)
 183                 return 1;
 184         else
 185                 return 0;
 186 }
 187
 188 int GraphicCanvas::cursor_motion_event()
 189 {
 190         process(0, 1, 0);
 191
 192         if(state == GraphicCanvas::DRAG_POINT)
 193         {
 194                 return 1;
 195         }
 196         else
 197                 return 0;
 198 }
 199
 200 int GraphicCanvas::button_release_event()
 201 {
 202         if(state == GraphicCanvas::DRAG_POINT && plugin->active_point >= 0)
 203         {
 204 // Delete point if out of order
 205                 int point_number = plugin->active_point;
 206                 GraphicPoint *active_point = temp_points.get(point_number);
 207
 208
 209                 for(int i = 0; i < temp_points.size(); i++)
 210                 {
 211                         GraphicPoint *point = temp_points.get(i);
 212                         if((point->freq <= active_point->freq && i > point_number) ||
 213                                 (point->freq >= active_point->freq && i < point_number))
 214                         {
 215                                 temp_points.remove_object_number(point_number);
 216                                 plugin->active_point = -1;
 217                                 process(0, 0, 1);
 218                                 break;
 219                         }
 220                 }
 221
 222                 save_temps();
 223                 plugin->send_configure_change();
 224         }
 225
 226         state = GraphicCanvas::NONE;
 227         return 0;
 228 }
 229
 230 #define BOX_SIZE 10
 231
 232 int GraphicCanvas::freq_to_y(int freq,
 233         ArrayList<GraphicPoint*> *points,
 234         double *envelope)
 235 {
 236         int center_y = get_h() / 2;
 237         double magnitude = plugin->freq_to_magnitude(freq, points, envelope);
 238         double magnitude_db = DB::todb(magnitude);
 239         if(magnitude_db < -MAXMAGNITUDE) magnitude_db = -MAXMAGNITUDE;
 240         int y = (int)(center_y - magnitude_db * center_y / MAXMAGNITUDE);
 241 //printf("GraphicCanvas::freq_to_y magnitude=%f magnitude_db=%f y=%d\n",
 242 //magnitude, magnitude_db, y);
 243         return y;
 244 }
 245
 246
 247 void GraphicCanvas::new_temps()
 248 {
 249 // Copy configuration from plugin for editing
 250         temp_points.remove_all_objects();
 251         for(int i = 0; i < plugin->config.points.size(); i++)
 252         {
 253                 GraphicPoint *point = new GraphicPoint;
 254                 *point = *plugin->config.points.get(i);
 255                 temp_points.append(point);
 256         }
 257
 258         plugin->calculate_envelope(&temp_points, temp_envelope);
 259 }
 260
 261 void GraphicCanvas::save_temps()
 262 {
 263         plugin->config.points.remove_all_objects();
 264         for(int i = 0; i < temp_points.size(); i++)
 265         {
 266                 GraphicPoint *point;
 267                 plugin->config.points.append(point = new GraphicPoint);
 268                 *point = *temp_points.get(i);
 269         }
 270 }
 271
 272
 273 void GraphicCanvas::insert_point(GraphicPoint *point)
 274 {
 275         int done = 0;
 276
 277         temp_points.append(point);
 278         while(!done)
 279         {
 280                 done = 1;
 281                 for(int i = 0; i < temp_points.size() - 1; i++)
 282                 {
 283                         if(temp_points.get(i)->freq > temp_points.get(i + 1)->freq)
 284                         {
 285                                 GraphicPoint *point = temp_points.get(i);
 286                                 temp_points.set(i, temp_points.get(i + 1));
 287                                 temp_points.set(i + 1, point);
 288                                 done = 0;
 289                         }
 290                 }
 291         }
 292 }
 293
 294
 295 void GraphicCanvas::process(int buttonpress, int motion, int draw)
 296 {
 297         int got_button = 0;
 298         int center_y = get_h() / 2;
 299         int out_of_order = 0;
 300         ArrayList<GraphicPoint*> *points;
 301         double *envelope;
 302         //const int debug = 0;
 303
 304
 305         if(state == GraphicCanvas::NONE)
 306         {
 307                 points = &plugin->config.points;
 308                 envelope = plugin->envelope;
 309         }
 310         else
 311         {
 312                 points = &temp_points;
 313                 envelope = temp_envelope;
 314         }
 315
 316         plugin->calculate_envelope(points, envelope);
 317
 318
 319 // spectrogram
 320         if(draw)
 321         {
 322                 clear_box(0, 0, get_w(), get_h());
 323
 324
 325                 int niquist = plugin->PluginAClient::project_sample_rate / 2;
 326                 int total_frames = plugin->get_gui_update_frames();
 327                 GraphicGUIFrame *frame = (GraphicGUIFrame*)plugin->get_gui_frame();
 328
 329                 if(frame)
 330                 {
 331                         delete plugin->last_frame;
 332                         plugin->last_frame = frame;
 333                 }
 334                 else
 335                 {
 336                         frame = plugin->last_frame;
 337                 }
 338
 339 // Draw most recent frame
 340                 if(frame)
 341                 {
 342                         set_color(MEGREY);
 343                         int y1 = 0;
 344                         int y2 = 0;
 345
 346
 347                         for(int i = 0; i < get_w(); i++)
 348                         {
 349                                 int freq = Freq::tofreq(i * TOTALFREQS / get_w());
 350                                 int index = (int64_t)freq * (int64_t)frame->window_size / 2 / niquist;
 351                                 if(index < frame->window_size / 2)
 352                                 {
 353                                         double magnitude = frame->data[index] /
 354                                                 frame->freq_max *
 355                                                 frame->time_max;
 356                                         y2 = (int)(get_h() -
 357                                                 (DB::todb(magnitude) - INFINITYGAIN) *
 358                                                 get_h() /
 359                                                 -INFINITYGAIN);
 360                                         CLAMP(y2, 0, get_h() - 1);
 361                                         if(i > 0)
 362                                         {
 363                                                 draw_line(i - 1, y1, i, y2);
 364 //printf(" %.0f", frame->data[index]);
 365                                         }
 366                                         y1 = y2;
 367                                 }
 368                         }
 369 //printf( "\n");
 370
 371                         total_frames--;
 372                 }
 373
 374
 375
 376
 377
 378
 379 // Delete remaining frames
 380                 while(total_frames > 0)
 381                 {
 382                         PluginClientFrame *frame = plugin->get_gui_frame();
 383
 384                         if(frame) delete frame;
 385                         total_frames--;
 386                 }
 387         }
 388
 389
 390 // Determine if active point is out of order
 391         if(plugin->active_point_exists())
 392         {
 393                 GraphicPoint *active_point = points->get(plugin->active_point);
 394                 for(int i = 0; i < points->size(); i++)
 395                 {
 396                         if(i == plugin->active_point)
 397                         {
 398                                 if( (i < points->size() - 1 &&
 399                                         active_point->freq >= points->get(i + 1)->freq) ||
 400                                     (i > 0 &&
 401                                         active_point->freq <= points->get(i - 1)->freq) )
 402                                 {
 403                                         out_of_order = 1;
 404                                 }
 405                                 break;
 406                         }
 407                 }
 408         }
 409
 410
 411         if(motion)
 412         {
 413                 if(state == GraphicCanvas::DRAG_POINT)
 414                 {
 415                         int point_x = get_cursor_x() + x_diff;
 416                         int point_y = get_cursor_y() + y_diff;
 417                         CLAMP(point_x, 0, get_w());
 418                         CLAMP(point_y, 0, get_h());
 419
 420                         int frequency = Freq::tofreq(point_x * TOTALFREQS / get_w());
 421                         double magnitude_db = (double)(center_y - point_y) * MAXMAGNITUDE / center_y;
 422                         int minfreq = Freq::tofreq(0);
 423                         int maxfreq = Freq::tofreq(TOTALFREQS - 1);
 424
 425                         CLAMP(frequency, minfreq, maxfreq);
 426                         CLAMP(magnitude_db, -MAXMAGNITUDE, MAXMAGNITUDE);
 427                         if(plugin->active_point >= 0)
 428                         {
 429                                 GraphicPoint *active_point = points->get(plugin->active_point);
 430                                 active_point->freq = frequency;
 431                                 active_point->value = magnitude_db;
 432                         }
 433
 434 // Redraw with new value
 435                         process(0, 0, 1);
 436                         save_temps();
 437                         plugin->send_configure_change();
 438                         gui->update_textboxes();
 439                         return;
 440                 }
 441         }
 442
 443 // Magnitude bars
 444         if(draw)
 445         {
 446                 set_color(GREEN);
 447                 set_line_dashes(1);
 448                 for(int i = 1; i < MAJOR_DIVISIONS; i++)
 449                 {
 450                         int y = i * get_h() / (MAJOR_DIVISIONS - 1);
 451                         draw_line(0, y, get_w(), y);
 452                 }
 453                 set_line_dashes(0);
 454         }
 455
 456         int y1 = 0;
 457         if(draw) set_color(WHITE);
 458
 459 // Control points, cursor change and control point selection
 460         int new_cursor = CROSS_CURSOR;
 461         for(int i = 0; i < points->size(); i++)
 462         {
 463                 GraphicPoint *point = points->get(i);
 464                 int x = Freq::fromfreq(point->freq) * get_w() / TOTALFREQS;
 465                 int y = freq_to_y(point->freq, points, envelope);
 466
 467                 if(draw)
 468                 {
 469                         y1 = y;
 470 // Draw point under cursor if out of order
 471                         if(i == plugin->active_point && out_of_order)
 472                                 y1 = get_cursor_y() + y_diff;
 473
 474                         if(i == plugin->active_point)
 475                                 draw_box(x - BOX_SIZE / 2, y1 - BOX_SIZE / 2, BOX_SIZE, BOX_SIZE);
 476                         else
 477                                 draw_rectangle(x - BOX_SIZE / 2, y1 - BOX_SIZE / 2, BOX_SIZE, BOX_SIZE);
 478                 }
 479
 480                 if(motion &&
 481                         state == GraphicCanvas::NONE &&
 482                         is_event_win() &&
 483                         cursor_inside())
 484                 {
 485                         if(get_cursor_x() >= x - BOX_SIZE / 2 &&
 486                                 get_cursor_y() >= y - BOX_SIZE / 2 &&
 487                                 get_cursor_x() < x + BOX_SIZE / 2 &&
 488                                 get_cursor_y() < y + BOX_SIZE / 2)
 489                         {
 490                                 new_cursor = UPRIGHT_ARROW_CURSOR;
 491                         }
 492                 }
 493
 494                 if(buttonpress &&
 495                         state == GraphicCanvas::NONE &&
 496                         is_event_win() &&
 497                         cursor_inside() &&
 498                         !got_button)
 499                 {
 500                         if(get_cursor_x() >= x - BOX_SIZE / 2 &&
 501                                 get_cursor_y() >= y - BOX_SIZE / 2 &&
 502                                 get_cursor_x() < x + BOX_SIZE / 2 &&
 503                                 get_cursor_y() < y + BOX_SIZE / 2)
 504                         {
 505                                 plugin->active_point = i;
 506                                 state = GraphicCanvas::DRAG_POINT;
 507                                 new_temps();
 508                                 points = &temp_points;
 509                                 envelope = temp_envelope;
 510
 511                                 x_diff = x - get_cursor_x();
 512                                 y_diff = y - get_cursor_y();
 513                                 got_button = 1;
 514                                 process(0, 0, 1);
 515                                 save_temps();
 516                                 plugin->send_configure_change();
 517                                 gui->update_textboxes();
 518                         }
 519                 }
 520         }
 521
 522         if(motion && new_cursor != get_cursor())
 523         {
 524                 set_cursor(new_cursor, 0, 1);
 525         }
 526
 527 // Envelope line;
 528         y1 = 0;
 529         set_line_width(2);
 530         for(int i = 0; i < get_w(); i++)
 531         {
 532                 int y = freq_to_y(Freq::tofreq(i * TOTALFREQS / get_w()),
 533                         points,
 534                         envelope);
 535
 536                 if(draw)
 537                 {
 538                         if(i > 0) draw_line(i - 1, y1, i, y);
 539                 }
 540
 541
 542                 y1 = y;
 543         }
 544         set_line_width(1);
 545
 546         if(buttonpress && !got_button)
 547         {
 548                 if(is_event_win() && cursor_inside())
 549                 {
 550                         GraphicPoint *new_point = new GraphicPoint;
 551                         new_point->freq = Freq::tofreq(get_cursor_x() *
 552                                 TOTALFREQS /
 553                                 get_w());
 554                         new_point->value = (double)(center_y - get_cursor_y()) *
 555                                 MAXMAGNITUDE /
 556                                 center_y;
 557                         state = GraphicCanvas::DRAG_POINT;
 558                         new_temps();
 559                         points = &temp_points;
 560                         envelope = temp_envelope;
 561
 562                         insert_point(new_point);
 563                         plugin->active_point = points->number_of(new_point);
 564                         x_diff = 0;
 565                         y_diff = 0;
 566
 567 // Redraw with new point
 568                         process(0, 0, 1);
 569                         save_temps();
 570                         plugin->send_configure_change();
 571                         gui->update_textboxes();
 572                 }
 573         }
 574
 575
 576         if(draw)
 577         {
 578                 flash();
 579         }
 580 }
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590 FreqTextBox::FreqTextBox(GraphicEQ *plugin,
 591         GraphicGUI *gui,
 592         int x,
 593         int y,
 594         int w)
 595  : BC_TextBox(x, y, w, 1, "")
 596 {
 597         this->plugin = plugin;
 598         this->gui = gui;
 599 }
 600
 601 int FreqTextBox::handle_event()
 602 {
 603         if(plugin->active_point_exists())
 604         {
 605                 GraphicPoint *active_point = plugin->config.points.get(plugin->active_point);
 606                 if(atoi(get_text()) != active_point->freq)
 607                 {
 608                         active_point->freq = atoi(get_text());
 609                         gui->update_canvas();
 610                         plugin->send_configure_change();
 611                         return 1;
 612                 }
 613         }
 614
 615         return 0;
 616 }
 617
 618 void FreqTextBox::update(int freq)
 619 {
 620         if(plugin->active_point_exists())
 621         {
 622                 GraphicPoint *active_point = plugin->config.points.get(plugin->active_point);
 623                 if(atoi(get_text()) != active_point->freq)
 624                 {
 625                         char string[BCTEXTLEN];
 626                         sprintf(string, "%d", active_point->freq);
 627                         BC_TextBox::update(string);
 628                 }
 629         }
 630 }
 631
 632
 633
 634
 635 ValueTextBox::ValueTextBox(GraphicEQ *plugin,
 636         GraphicGUI *gui,
 637         int x,
 638         int y,
 639         int w)
 640  : BC_TextBox(x, y, w, 1, "")
 641 {
 642         this->plugin = plugin;
 643         this->gui = gui;
 644 }
 645
 646 int ValueTextBox::handle_event()
 647 {
 648         if(plugin->active_point_exists())
 649         {
 650                 GraphicPoint *active_point = plugin->config.points.get(plugin->active_point);
 651                 if(!EQUIV(atof(get_text()), active_point->value))
 652                 {
 653                         active_point->value = atof(get_text());
 654                         gui->update_canvas();
 655                         plugin->send_configure_change();
 656                         return 1;
 657                 }
 658         }
 659
 660         return 0;
 661 }
 662
 663 void ValueTextBox::update(float value)
 664 {
 665         if(plugin->active_point_exists())
 666         {
 667                 GraphicPoint *active_point = plugin->config.points.get(plugin->active_point);
 668                 if(!EQUIV(atof(get_text()), active_point->value))
 669                 {
 670                         char string[BCTEXTLEN];
 671                         sprintf(string, "%.04f", active_point->value);
 672                         BC_TextBox::update(string);
 673                 }
 674         }
 675 }
 676
 677 GraphicReset::GraphicReset(GraphicEQ *plugin,
 678         GraphicGUI *gui,
 679         int x,
 680         int y)
 681  : BC_GenericButton(x, y, _("Reset"))
 682 {
 683         this->plugin = plugin;
 684         this->gui = gui;
 685 }
 686
 687 int GraphicReset::handle_event()
 688 {
 689         plugin->config.points.remove_all_objects();
 690         plugin->active_point = -1;
 691         gui->update_canvas();
 692         gui->update_textboxes();
 693         plugin->send_configure_change();
 694         return 1;
 695 }
 696
 697
 698
 699
 700
 701 GraphicSize::GraphicSize(GraphicGUI *window, GraphicEQ *plugin, int x, int y)
 702  : BC_PopupMenu(x, y, 100, "4096", 1)
 703 {
 704         this->plugin = plugin;
 705         this->window = window;
 706 }
 707
 708
 709 int GraphicSize::handle_event()
 710 {
 711         plugin->config.window_size = atoi(get_text());
 712         plugin->send_configure_change();
 713
 714         window->update_canvas();
 715         return 1;
 716 }
 717
 718 void GraphicSize::create_objects()
 719 {
 720         add_item(new BC_MenuItem("2048"));
 721         add_item(new BC_MenuItem("4096"));
 722         add_item(new BC_MenuItem("8192"));
 723         add_item(new BC_MenuItem("16384"));
 724         add_item(new BC_MenuItem("32768"));
 725         add_item(new BC_MenuItem("65536"));
 726         add_item(new BC_MenuItem("131072"));
 727         add_item(new BC_MenuItem("262144"));
 728 }
 729
 730 void GraphicSize::update(int size)
 731 {
 732         char string[BCTEXTLEN];
 733         sprintf(string, "%d", size);
 734         set_text(string);
 735 }
 736
 737
 738
 739
 740 //
 741 //
 742 // GraphicWetness::GraphicWetness(GraphicGUI *window, GraphicEQ *plugin, int x, int y)
 743 //  : BC_FPot(x, y, plugin->config.wetness, INFINITYGAIN, 0)
 744 // {
 745 //      this->plugin = plugin;
 746 //      this->window = window;
 747 // }
 748 //
 749 // int GraphicWetness::handle_event()
 750 // {
 751 //      plugin->config.wetness = get_value();
 752 //      plugin->send_configure_change();
 753 //      window->update_canvas();
 754 //      return 1;
 755 // }
 756 //
 757 //
 758 //
 759
 760
 761
 762
 763
 764
 765 GraphicGUI::GraphicGUI(GraphicEQ *plugin)
 766  : PluginClientWindow(plugin,
 767         plugin->w,
 768         plugin->h,
 769         320,
 770         200,
 771         1)
 772 {
 773         this->plugin = plugin;
 774 }
 775
 776 GraphicGUI::~GraphicGUI()
 777 {
 778 }
 779
 780
 781 void GraphicGUI::create_objects()
 782 {
 783         int margin = plugin->get_theme()->widget_border;
 784         int x = get_text_width(SMALLFONT, "-00") + LINE_W4 + margin;
 785         int y = margin;
 786         int freq_h = get_text_height(SMALLFONT) + LINE_W4;
 787
 788         add_subwindow(canvas = new GraphicCanvas(plugin,
 789                 this,
 790                 x,
 791                 y,
 792                 get_w() - x - margin,
 793                 get_h() -
 794 //                      BC_Pot::calculate_h() -
 795                         BC_TextBox::calculate_h(this, MEDIUMFONT, 1, 1) -
 796                         margin * 3 -
 797                         y -
 798                         freq_h));
 799         y += canvas->get_h() + freq_h + margin;
 800
 801 //      int x1 = x;
 802 //      int y1 = y;
 803         add_subwindow(freq_title = new BC_Title(x, y, _("Frequency:")));
 804         x += freq_title->get_w() + margin;
 805         add_subwindow(freq_text = new FreqTextBox(plugin, this, x, y, 100));
 806         x += freq_text->get_w() + margin;
 807
 808         add_subwindow(level_title = new BC_Title(x, y, _("Level:")));
 809         x += level_title->get_w() + margin;
 810         add_subwindow(value_text = new ValueTextBox(plugin, this, x, y, 100));
 811         x += value_text->get_w() + margin;
 812
 813         add_subwindow(reset = new GraphicReset(plugin, this, x, y));
 814         x += reset->get_w() + margin;
 815
 816
 817 //      x = x1;
 818 //      y += value_text->get_h() + margin;
 819
 820         add_subwindow(size_title = new BC_Title(x, y, _("Window size:")));
 821         x += size_title->get_w() + margin;
 822         add_subwindow(size = new GraphicSize(this, plugin, x, y));
 823         size->create_objects();
 824         size->update(plugin->config.window_size);
 825         x += size->get_w() + margin;
 826
 827 //      add_subwindow(title = new BC_Title(x, y, "Wetness:"));
 828 //      x += title->get_w() + margin;
 829 //      add_subwindow(wetness = new GraphicWetness(this, plugin,
 830 //              x,
 831 //              y));
 832
 833         draw_ticks();
 834         update_canvas();
 835         show_window();
 836 }
 837
 838
 839 int GraphicGUI::resize_event(int w, int h)
 840 {
 841         int difference = h - get_h();
 842         int canvas_xdiff = get_w() - canvas->get_w();
 843         int canvas_ydiff = get_h() - canvas->get_h();
 844
 845         canvas->reposition_window(canvas->get_x(),
 846                 canvas->get_y(),
 847                 w - canvas_xdiff,
 848                 h - canvas_ydiff);
 849         freq_text->reposition_window(freq_text->get_x(),
 850                 freq_text->get_y() + difference);
 851         value_text->reposition_window(value_text->get_x(),
 852                 value_text->get_y() + difference);
 853         freq_title->reposition_window(freq_title->get_x(),
 854                 freq_title->get_y() + difference);
 855         level_title->reposition_window(level_title->get_x(),
 856                 level_title->get_y() + difference);
 857         size_title->reposition_window(size_title->get_x(),
 858                 size_title->get_y() + difference);
 859         reset->reposition_window(reset->get_x(),
 860                 reset->get_y() + difference);
 861         size->reposition_window(size->get_x(),
 862                 size->get_y() + difference);
 863
 864         draw_ticks();
 865         update_canvas();
 866         flash();
 867
 868         plugin->w = w;
 869         plugin->h = h;
 870         plugin->send_configure_change();
 871         return 1;
 872 }
 873
 874
 875
 876
 877
 878
 879 int GraphicGUI::keypress_event()
 880 {
 881         if(get_keypress() == BACKSPACE ||
 882                 get_keypress() == DELETE)
 883         {
 884                 if(plugin->active_point_exists())
 885                 {
 886                         int point_number = -1;
 887                         for(int i = 0; i < plugin->config.points.size(); i++)
 888                         {
 889                                 if(i == plugin->active_point)
 890                                 {
 891                                         point_number = i;
 892                                         break;
 893                                 }
 894                         }
 895
 896                         if(point_number >= 0)
 897                         {
 898                                 plugin->config.delete_point(point_number);
 899                                 canvas->process(0, 0, 1);
 900                                 plugin->send_configure_change();
 901                                 return 1;
 902                         }
 903                 }
 904         }
 905         return 0;
 906 }
 907
 908
 909 void GraphicGUI::draw_ticks()
 910 {
 911         //int x = canvas->get_x() - 5 - get_text_width(SMALLFONT, "-00");
 912         int y = canvas->get_y() - 1;
 913         int x1 = canvas->get_x() - LINE_W3;
 914         int x2 = canvas->get_x() - LINE_W2;
 915         int x3 = canvas->get_x() - LINE_W1;
 916         char string[BCTEXTLEN];
 917
 918 // Amplitude
 919         set_font(SMALLFONT);
 920         int major_division = canvas->get_h() / (MAJOR_DIVISIONS - 1);
 921         for(int i = 0; i < MAJOR_DIVISIONS; i++)
 922         {
 923                 int current_db = (MAJOR_DIVISIONS - 1 - i) * (MAX_DB - MIN_DB) / (MAJOR_DIVISIONS - 1) + MIN_DB;
 924                 if(current_db == MIN_DB)
 925                         sprintf(string, "oo");
 926                 else
 927                 if(current_db <= 0.0)
 928                         sprintf(string, "%d", current_db);
 929                 else
 930                         sprintf(string, "+%d", current_db);
 931
 932                 set_color(BLACK);
 933                 int y1 = y + 1 + i * canvas->get_h() / (MAJOR_DIVISIONS - 1);
 934                 int x4 = canvas->get_x() - LINE_W4 - get_text_width(SMALLFONT, string);
 935                 draw_text(x4 + 1, y1 + get_text_ascent(SMALLFONT) / 2 + 1, string);
 936                 draw_line(x1 + 1, y1 + 1, x3 + 1, y1 + 1);
 937                 set_color(RED);
 938                 draw_text(x4, y1 + get_text_ascent(SMALLFONT) / 2, string);
 939                 draw_line(x1, y1, x3, y1);
 940
 941
 942                 if(i < MAJOR_DIVISIONS - 1)
 943                 {
 944                         for(int j = 0; j < MINOR_DIVISIONS; j++)
 945                         {
 946                                 int y2 = y1 + j * major_division / MINOR_DIVISIONS;
 947                                 set_color(BLACK);
 948                                 draw_line(x2 + 1, y2 + 1, x3 + 1, y2 + 1);
 949                                 set_color(RED);
 950                                 draw_line(x2, y2, x3, y2);
 951                         }
 952                 }
 953         }
 954
 955
 956 // Frequency
 957         for(int i = 0; i <= MAJOR_DIVISIONS; i++)
 958         {
 959                 int freq = Freq::tofreq(i * TOTALFREQS / MAJOR_DIVISIONS);
 960                 char string[BCTEXTLEN];
 961                 x1 = canvas->get_x() + i * canvas->get_w() / MAJOR_DIVISIONS;
 962                 int y1 = canvas->get_y() + canvas->get_h() + LINE_W1 - 1;
 963                 sprintf(string, "%d", freq);
 964                 int x2 = x1 - get_text_width(SMALLFONT, string);
 965                 int y2 = canvas->get_y() + canvas->get_h() + LINE_W2 - 1;
 966                 int y3 = canvas->get_y() + canvas->get_h() + LINE_W3 - 1;
 967                 int y4 = canvas->get_y() + canvas->get_h() + get_text_height(SMALLFONT) + LINE_W4 - 1;
 968
 969                 set_color(BLACK);
 970                 draw_text(x2 + 1, y4 + 1, string);
 971                 draw_line(x1 + 1, y3 + 1, x1 + 1, y1 + 1);
 972
 973                 set_color(RED);
 974                 draw_text(x2, y4, string);
 975                 draw_line(x1, y3, x1, y1);
 976
 977                 if(i < MAJOR_DIVISIONS)
 978                 {
 979                         for(int j = 0; j < MINOR_DIVISIONS; j++)
 980                         {
 981                                 int x3 = (int)(x1 +
 982                                         (canvas->get_w() / MAJOR_DIVISIONS) -
 983                                         exp(-(double)j * 0.7) *
 984                                         (canvas->get_w() / MAJOR_DIVISIONS));
 985                                 set_color(BLACK);
 986                                 draw_line(x3 + 1, y2 + 1, x3 + 1, y1 + 1);
 987                                 set_color(RED);
 988                                 draw_line(x3, y2, x3, y1);
 989                         }
 990                 }
 991         }
 992 }
 993
 994 void GraphicGUI::update_canvas()
 995 {
 996         canvas->process(0, 0, 1);
 997 }
 998
 999 void GraphicGUI::update_textboxes()
1000 {
1001         if(plugin->active_point_exists())
1002         {
1003                 GraphicPoint *active_point = plugin->config.points.get(plugin->active_point);
1004                 freq_text->update(active_point->freq);
1005                 value_text->update(active_point->value);
1006         }
1007 }
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027 GraphicEQ::GraphicEQ(PluginServer *server)
1028  : PluginAClient(server)
1029 {
1030         last_frame = 0;
1031         fft = 0;
1032         need_reconfigure = 1;
1033         active_point = -1;
1034         w = 640;
1035         h = 480;
1036 }
1037
1038 GraphicEQ::~GraphicEQ()
1039 {
1040
1041         delete last_frame;
1042         if(fft) delete fft;
1043 }
1044
1045
1046 int GraphicEQ::is_realtime() { return 1; }
1047
1048 const char* GraphicEQ::plugin_title() { return N_("EQ Graphic"); }
1049
1050 NEW_WINDOW_MACRO(GraphicEQ, GraphicGUI)
1051
1052 LOAD_CONFIGURATION_MACRO(GraphicEQ, GraphicConfig)
1053
1054 int GraphicEQ::active_point_exists()
1055 {
1056         if(active_point >= 0 && active_point < config.points.size()) return 1;
1057         return 0;
1058 }
1059
1060
1061 void GraphicEQ::read_data(KeyFrame *keyframe)
1062 {
1063         FileXML input;
1064         int result = 0;
1065
1066         input.set_shared_input(keyframe->xbuf);
1067         config.points.remove_all_objects();
1068
1069         while(!result)
1070         {
1071                 result = input.read_tag();
1072
1073                 if(!result)
1074                 {
1075                         if(input.tag.title_is("GRAPHICEQ"))
1076                         {
1077                                 config.window_size = input.tag.get_property("WINDOW_SIZE", config.window_size);
1078                                 if(is_defaults())
1079                                 {
1080                                         w = input.tag.get_property("W", w);
1081                                         h = input.tag.get_property("H", h);
1082                                 }
1083                         }
1084                         else
1085                         if(input.tag.title_is("POINT"))
1086                         {
1087                                 GraphicPoint *point;
1088                                 config.points.append(point = new GraphicPoint);
1089                                 point->freq = input.tag.get_property("X", 0);
1090                                 point->value = input.tag.get_property("Y", 0.0);
1091                         }
1092                 }
1093         }
1094
1095 //      if(!active_point_exists()) active_point = -1;
1096 }
1097
1098
1099
1100
1101 void GraphicEQ::save_data(KeyFrame *keyframe)
1102 {
1103         FileXML output;
1104         output.set_shared_output(keyframe->xbuf);
1105
1106         output.tag.set_title("GRAPHICEQ");
1107         output.tag.set_property("WINDOW_SIZE", config.window_size);
1108         output.tag.set_property("W", w);
1109         output.tag.set_property("H", h);
1110         output.append_tag();
1111         output.tag.set_title("/GRAPHICEQ");
1112         output.append_tag();
1113         output.append_newline();
1114
1115         for(int i = 0; i < config.points.total; i++)
1116         {
1117                 output.tag.set_title("POINT");
1118                 output.tag.set_property("X", config.points.values[i]->freq);
1119                 output.tag.set_property("Y", config.points.values[i]->value);
1120                 output.append_tag();
1121                 output.tag.set_title("/POINT");
1122                 output.append_tag();
1123                 output.append_newline();
1124         }
1125
1126         output.terminate_string();
1127 }
1128
1129
1130 void GraphicEQ::update_gui()
1131 {
1132         if( !thread ) return;
1133         GraphicGUI *window = (GraphicGUI *)thread->window;
1134 //lock here for points, needed by window cursor_motion callback
1135 //  deleted in load_configuration by read_data
1136         window->lock_window("GraphicEQ::update_gui");
1137         if( load_configuration() &&
1138             window->canvas->state != GraphicCanvas::DRAG_POINT ) {
1139                 window->update_canvas();
1140                 window->update_textboxes();
1141         }
1142         else {
1143                 int total_frames = get_gui_update_frames();
1144 //printf("ParametricEQ::update_gui %d %d\n", __LINE__, total_frames);
1145                 if( total_frames )
1146                         window->update_canvas();
1147         }
1148         window->unlock_window();
1149 }
1150
1151 void GraphicEQ::reconfigure()
1152 {
1153         if(fft && fft->window_size != config.window_size)
1154         {
1155                 delete fft;
1156                 fft = 0;
1157         }
1158
1159         if(!fft)
1160         {
1161                 fft = new GraphicFFT(this);
1162                 fft->initialize(config.window_size);
1163         }
1164
1165         calculate_envelope(&config.points, envelope);
1166
1167         for(int i = 0; i < config.window_size / 2; i++)
1168         {
1169                 if(envelope[i] < 0) envelope[i] = 0;
1170         }
1171
1172         need_reconfigure = 0;
1173 }
1174
1175 int GraphicEQ::process_buffer(int64_t size,
1176         Samples *buffer,
1177         int64_t start_position,
1178         int sample_rate)
1179 {
1180         need_reconfigure |= load_configuration();
1181         if(need_reconfigure) reconfigure();
1182
1183         fft->process_buffer(start_position, size, buffer, get_direction());
1184
1185
1186         return 0;
1187 }
1188
1189
1190 double GraphicEQ::freq_to_magnitude(double frequency,
1191         ArrayList<GraphicPoint*> *points,
1192         double *envelope)
1193 {
1194 // Calculate using control points
1195         for(int i = 0; i < points->size(); i++)
1196         {
1197                 GraphicPoint *point = points->get(i);
1198                 if(point->freq == (int)frequency)
1199                 {
1200                         return DB::fromdb(point->value);
1201                 }
1202         }
1203
1204
1205         int nyquist = PluginAClient::project_sample_rate / 2;
1206         int slot = (int)(frequency * config.window_size / 2 / nyquist);
1207         if(slot >= config.window_size / 2) slot = config.window_size / 2 - 1;
1208 //printf("GraphicEQ::freq_to_db %d %f\n", slot, envelope[slot]);
1209         return envelope[slot];
1210 }
1211
1212
1213 void GraphicEQ::calculate_envelope(ArrayList<GraphicPoint*> *points,
1214                 double *envelope)
1215 {
1216         int niquist = PluginAClient::project_sample_rate / 2;
1217
1218 // Make temporary list of just points in order
1219         ArrayList<GraphicPoint*> temp_points;
1220         for(int i = 0; i < points->size(); i++)
1221         {
1222                 temp_points.append(points->get(i));
1223         }
1224
1225         for(int i = 0; i < temp_points.size(); i++)
1226         {
1227                 GraphicPoint *point = temp_points.get(i);
1228                 if(i == active_point)
1229                 {
1230                         GraphicPoint *prev_point = 0;
1231                         GraphicPoint *next_point = 0;
1232                         if(i >= 1) prev_point = temp_points.get(i - 1);
1233                         if(i < temp_points.size() - 1) next_point = temp_points.get(i + 1);
1234                         if( (prev_point && prev_point->freq >= point->freq) ||
1235                                 (next_point && next_point->freq <= point->freq) )
1236                                 temp_points.remove_number(i);
1237                         break;
1238                 }
1239         }
1240
1241
1242 // Join each point
1243         if(temp_points.size())
1244         {
1245                 GraphicPoint *first_point = temp_points.get(0);
1246                 GraphicPoint *last_point = temp_points.get(temp_points.size() - 1);
1247                 for(int i = 0; i < config.window_size / 2; i++)
1248                 {
1249                         int freq = i * niquist / (config.window_size / 2);
1250                         if(freq <= first_point->freq)
1251                                 envelope[i] = first_point->value;
1252                         else
1253                         if(freq >= last_point->freq)
1254                                 envelope[i] = last_point->value;
1255                         else
1256                         {
1257                                 GraphicPoint *point1 = first_point;
1258                                 GraphicPoint *point2 = last_point;
1259                                 for(int j = 0; j < temp_points.size(); j++)
1260                                 {
1261                                         if(temp_points.get(j)->freq <= freq)
1262                                                 point1 = temp_points.get(j);
1263                                         else
1264                                         {
1265                                                 point2 = temp_points.get(j);
1266                                                 break;
1267                                         }
1268                                 }
1269
1270                                 if(point2->freq != point1->freq)
1271                                 {
1272                                         int freqslot1 = Freq::fromfreq(point1->freq);
1273                                         int freqslot2 = Freq::fromfreq(point2->freq);
1274                                         int freqslot = Freq::fromfreq(freq);
1275
1276                                         envelope[i] = (double)(freqslot - freqslot1) *
1277                                                 (point2->value - point1->value) /
1278                                                 (freqslot2 - freqslot1) +
1279                                                 point1->value;
1280                                 }
1281                                 else
1282                                         envelope[i] = point1->value;
1283                         }
1284
1285
1286                         if(envelope[i] < MIN_DB + 0.01)
1287                                 envelope[i] = 0;
1288                         else
1289                                 envelope[i] = DB::fromdb(envelope[i]);
1290                 }
1291         }
1292         else
1293         {
1294                 for(int i = 0; i < config.window_size / 2; i++)
1295                 {
1296                         envelope[i] = 1.0;
1297                 }
1298         }
1299 }
1300
1301
1302
1303
1304 GraphicGUIFrame::GraphicGUIFrame(int window_size, int sample_rate)
1305  : PluginClientFrame(window_size / 2, window_size / 2, sample_rate)
1306 {
1307         data = new double[window_size / 2];
1308         freq_max = 0;
1309         time_max = 0;
1310         this->window_size = window_size;
1311 }
1312
1313 GraphicGUIFrame::~GraphicGUIFrame()
1314 {
1315         delete [] data;
1316 }
1317
1318
1319
1320
1321
1322
1323 GraphicFFT::GraphicFFT(GraphicEQ *plugin)
1324  : CrossfadeFFT()
1325 {
1326         this->plugin = plugin;
1327 }
1328
1329 GraphicFFT::~GraphicFFT()
1330 {
1331 }
1332
1333
1334 int GraphicFFT::signal_process()
1335 {
1336 // Create new frame for updating GUI
1337         frame = new GraphicGUIFrame(window_size,
1338                 plugin->PluginAClient::project_sample_rate);
1339         plugin->add_gui_frame(frame);
1340
1341         double freq_max = 0;
1342         for(int i = 0; i < window_size / 2; i++)
1343         {
1344                 double result = plugin->envelope[i] * sqrt(freq_real[i] * freq_real[i] + freq_imag[i] * freq_imag[i]);
1345                 double angle = atan2(freq_imag[i], freq_real[i]);
1346                 freq_real[i] = result * cos(angle);
1347                 freq_imag[i] = result * sin(angle);
1348                 frame->data[i] = result;
1349                 if(result > freq_max) freq_max = result;
1350         }
1351         frame->freq_max = freq_max;
1352
1353         symmetry(window_size, freq_real, freq_imag);
1354
1355         return 0;
1356 }
1357
1358 int GraphicFFT::post_process()
1359 {
1360         double time_max = 0;
1361         for(int i = 0; i < window_size; i++)
1362         {
1363                 if(output_real[i] > time_max) time_max = output_real[i];
1364         }
1365         frame->time_max = time_max;
1366         return 0;
1367 }
1368
1369
1370
1371 int GraphicFFT::read_samples(int64_t output_sample,
1372         int samples,
1373         Samples *buffer)
1374 {
1375         return plugin->read_samples(buffer,
1376                 0,
1377                 plugin->get_samplerate(),
1378                 output_sample,
1379                 samples);
1380 }
1381
1382