cinelerra-5.1/plugins/lens/lens.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 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 "bchash.h"
  24 #include "bcsignals.h"
  25 #include "clip.h"
  26 #include "file.h"
  27 #include "filexml.h"
  28 #include "interp.h"
  29 #include "language.h"
  30 #include "lens.h"
  31
  32
  33 #include <string.h>
  34
  35
  36
  37
  38 REGISTER_PLUGIN(LensMain)
  39
  40 LensConfig::LensConfig()
  41 {
  42         reset();
  43 }
  44
  45 void LensConfig::reset()
  46 {
  47         for( int i=0; i<FOV_CHANNELS; ++i )
  48                 fov[i] = 1.0;
  49         aspect = 1.0;
  50         radius = 1.0;
  51         mode = SPHERICAL_SHRINK;
  52         interp = INTERP_DEFAULT;
  53         center_x = 50.0;
  54         center_y = 50.0;
  55         draw_guides = 0;
  56 }
  57
  58 int LensConfig::equivalent(LensConfig &that)
  59 {
  60         for( int i=0; i<FOV_CHANNELS; ++i )
  61                 if( !EQUIV(fov[i], that.fov[i]) ) return 0;
  62         return EQUIV(aspect, that.aspect) &&
  63                 EQUIV(radius, that.radius) &&
  64                 EQUIV(center_x, that.center_x) &&
  65                 EQUIV(center_y, that.center_y) &&
  66                 mode == that.mode &&
  67                 interp == that.interp &&
  68                 draw_guides == that.draw_guides;
  69 }
  70
  71 void LensConfig::copy_from(LensConfig &that)
  72 {
  73         for( int i=0; i<FOV_CHANNELS; ++i )
  74                 fov[i] = that.fov[i];
  75         aspect = that.aspect;
  76         radius = that.radius;
  77         mode = that.mode;
  78         interp = that.interp;
  79         center_x = that.center_x;
  80         center_y = that.center_y;
  81         draw_guides = that.draw_guides;
  82 }
  83
  84 void LensConfig::interpolate(LensConfig &prev, LensConfig &next,
  85         int64_t prev_frame, int64_t next_frame, int64_t current_frame)
  86 {
  87         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
  88         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
  89
  90         for( int i=0; i<FOV_CHANNELS; ++i )
  91                 fov[i] = prev.fov[i] * prev_scale + next.fov[i] * next_scale;
  92         aspect = prev.aspect * prev_scale + next.aspect * next_scale;
  93         radius = prev.radius * prev_scale + next.radius * next_scale;
  94         center_x = prev.center_x * prev_scale + next.center_x * next_scale;
  95         center_y = prev.center_y * prev_scale + next.center_y * next_scale;
  96         mode = prev.mode;
  97         interp = prev.interp;
  98         draw_guides = prev.draw_guides;
  99
 100         boundaries();
 101 }
 102
 103 void LensConfig::boundaries()
 104 {
 105         CLAMP(center_x, 0.0, 99.0);
 106         CLAMP(center_y, 0.0, 99.0);
 107         for( int i=0; i<FOV_CHANNELS; ++i )
 108                 CLAMP(fov[i], 0.0, 1.0);
 109         CLAMP(aspect, 0.3, 3.0);
 110         CLAMP(radius, 0.3, 3.0);
 111 }
 112
 113
 114
 115
 116 LensSlider::LensSlider(LensMain *plugin, LensGUI *gui,
 117         LensText *text, float *output, int x, int y, float min, float max)
 118  : BC_FSlider(x, y, 0, 200, 200, min, max, *output)
 119 {
 120         this->gui = gui;
 121         this->plugin = plugin;
 122         this->output = output;
 123         this->text = text;
 124         set_precision(0.01);
 125 }
 126
 127 int LensSlider::handle_event()
 128 {
 129         float prev_output = *output;
 130         *output = get_value();
 131         text->update(*output);
 132
 133         float difference = *output - prev_output;
 134         int is_fov = 0;
 135
 136         if( plugin->lock ) {
 137                 for( int i=0; i<FOV_CHANNELS; ++i ) {
 138                         if( output == &plugin->config.fov[i] ) {
 139                                 is_fov = 1;
 140                                 break;
 141                         }
 142                 }
 143
 144                 if( is_fov ) {
 145                         for( int i=0; i<FOV_CHANNELS; ++i ) {
 146                                 if( output != &plugin->config.fov[i] ) {
 147                                         plugin->config.fov[i] += difference;
 148                                         plugin->config.boundaries();
 149                                         gui->fov_slider[i]->update(plugin->config.fov[i]);
 150                                         gui->fov_text[i]->update(plugin->config.fov[i]);
 151                                 }
 152                         }
 153                 }
 154         }
 155
 156         plugin->send_configure_change();
 157         return 1;
 158 }
 159
 160
 161
 162 LensText::LensText(LensMain *plugin, LensGUI *gui,
 163         LensSlider *slider, float *output, int x, int y)
 164  : BC_TextBox(x, y, 100, 1, *output)
 165 {
 166         this->gui = gui;
 167         this->plugin = plugin;
 168         this->output = output;
 169         this->slider = slider;
 170 }
 171
 172 int LensText::handle_event()
 173 {
 174         float prev_output = *output;
 175         *output = atof(get_text());
 176         slider->update(*output);
 177
 178         float difference = *output - prev_output;
 179         int is_fov = 0;
 180
 181         if( plugin->lock ) {
 182                 for( int i=0; i<FOV_CHANNELS; ++i ) {
 183                         if( output == &plugin->config.fov[i] ) {
 184                                 is_fov = 1;
 185                                 break;
 186                         }
 187                 }
 188
 189                 if( is_fov ) {
 190                         for( int i=0; i<FOV_CHANNELS; ++i ) {
 191                                 if( output != &plugin->config.fov[i] ) {
 192                                         plugin->config.fov[i] += difference;
 193                                         plugin->config.boundaries();
 194                                         gui->fov_slider[i]->update(plugin->config.fov[i]);
 195                                         gui->fov_text[i]->update(plugin->config.fov[i]);
 196                                 }
 197                         }
 198                 }
 199         }
 200
 201         plugin->send_configure_change();
 202         return 1;
 203 }
 204
 205
 206 LensToggle::LensToggle(LensMain *plugin,
 207         int *output,
 208         int x,
 209         int y,
 210         const char *text)
 211  : BC_CheckBox(x, y, *output, text)
 212 {
 213         this->output = output;
 214         this->plugin = plugin;
 215 }
 216
 217 int LensToggle::handle_event()
 218 {
 219         *output = get_value();
 220         plugin->send_configure_change();
 221         return 1;
 222 }
 223
 224
 225 LensMode::LensMode(LensMain *plugin, LensGUI *gui, int x, int y)
 226  : BC_PopupMenu(x, y, calculate_w(gui), "", 1)
 227 {
 228         this->plugin = plugin;
 229         this->gui = gui;
 230 }
 231
 232 int LensMode::handle_event()
 233 {
 234         plugin->config.mode = from_text(get_text());
 235         plugin->send_configure_change();
 236         return 1;
 237
 238 }
 239
 240 void LensMode::create_objects()
 241 {
 242         add_item(new BC_MenuItem(to_text(LensConfig::SPHERICAL_SHRINK)));
 243         add_item(new BC_MenuItem(to_text(LensConfig::SPHERICAL_STRETCH)));
 244         add_item(new BC_MenuItem(to_text(LensConfig::RECTILINEAR_STRETCH)));
 245         add_item(new BC_MenuItem(to_text(LensConfig::RECTILINEAR_SHRINK)));
 246         update(plugin->config.mode);
 247 }
 248
 249 void LensMode::update(int mode)
 250 {
 251         char string[BCTEXTLEN];
 252         sprintf(string, "%s", to_text(mode));
 253         set_text(string);
 254 }
 255
 256 int LensMode::calculate_w(LensGUI *gui)
 257 {
 258         int result = 0;
 259         result = MAX(result, gui->get_text_width(MEDIUMFONT, to_text(LensConfig::SPHERICAL_STRETCH)));
 260         result = MAX(result, gui->get_text_width(MEDIUMFONT, to_text(LensConfig::SPHERICAL_SHRINK)));
 261         result = MAX(result, gui->get_text_width(MEDIUMFONT, to_text(LensConfig::RECTILINEAR_STRETCH)));
 262         result = MAX(result, gui->get_text_width(MEDIUMFONT, to_text(LensConfig::RECTILINEAR_SHRINK)));
 263         return result + 50;
 264 }
 265
 266 int LensMode::from_text(char *text)
 267 {
 268         if( !strcmp(text, _("Sphere Stretch")) )           return LensConfig::SPHERICAL_STRETCH;
 269         else if( !strcmp(text, _("Sphere Shrink")) )       return LensConfig::SPHERICAL_SHRINK;
 270         else if( !strcmp(text, _("Rectilinear Stretch")) ) return LensConfig::RECTILINEAR_STRETCH;
 271         else if( !strcmp(text, _("Rectilinear Shrink")) )  return LensConfig::RECTILINEAR_SHRINK;
 272         return LensConfig::SPHERICAL_STRETCH;
 273 }
 274
 275 const char* LensMode::to_text(int mode)
 276 {
 277         switch( mode ) {
 278         case LensConfig::SPHERICAL_STRETCH:   return _("Sphere Stretch");
 279         case LensConfig::SPHERICAL_SHRINK:    return _("Sphere Shrink");
 280         case LensConfig::RECTILINEAR_STRETCH: return _("Rectilinear Stretch");
 281         case LensConfig::RECTILINEAR_SHRINK:  return _("Rectilinear Shrink");
 282         }
 283         return _("Sphere Stretch");
 284 }
 285
 286
 287 // LensPresets::LensPresets(LensMain *plugin,
 288 //      LensGUI *gui, int x, int y, int w)
 289 //  : BC_PopupMenu(x, y, w, "", 1)
 290 // {
 291 //      this->plugin = plugin;
 292 //      this->gui = gui;
 293 // }
 294 //
 295 // int LensPresets::handle_event()
 296 // {
 297 //      return 1;
 298 // }
 299 //
 300 // void LensPresets::create_objects()
 301 // {
 302 // // Remove existing items
 303 //      int total = total_items();
 304 //      for( int i=0; i<total; ++i ) {
 305 //              del_item();
 306 //      }
 307 //
 308 // // Create current items
 309 //      plugin->load_presets();
 310 //      for( int i=0; i<plugin->presets.total; ++i ) {
 311 //              add_item(new BC_MenuItem(plugin->presets.values[i]->title));
 312 //      }
 313 //
 314 // // Update text
 315 //      if( plugin->current_preset >= 0 &&
 316 //          plugin->current_preset < plugin->presets.total ) {
 317 //              set_text(plugin->presets.values[plugin->current_preset]->title);
 318 //      }
 319 //      else {
 320 //              set_text("None");
 321 //      }
 322 // }
 323 //
 324 // int LensPresets::from_text(LensMain *plugin, char *text)
 325 // {
 326 // }
 327 //
 328 // char* LensPresets::to_text(LensMain *plugin, int preset)
 329 // {
 330 // }
 331 //
 332 // void LensPresets::update(int preset)
 333 // {
 334 // }
 335 //
 336 //
 337 // LensSavePreset::LensSavePreset(LensMain *plugin, LensGUI *gui, int x, int y)
 338 //  : BC_GenericButton(x, y, _("Save Preset"))
 339 // {
 340 //      this->plugin = plugin;
 341 //      this->gui = gui;
 342 // }
 343 //
 344 // int LensSavePreset::handle_event()
 345 // {
 346 // }
 347 //
 348 //
 349 // LensDeletePreset::LensDeletePreset(LensMain *plugin, LensGUI *gui, int x, int y)
 350 //  : BC_GenericButton(x, y, _("Delete Preset"))
 351 // {
 352 // }
 353 //
 354 // int LensDeletePreset::handle_event()
 355 // {
 356 // }
 357 //
 358 //
 359 // LensPresetText::LensPresetText(LensMain *plugin, LensGUI *gui, int x, int y, int w)
 360 //  : BC_TextBox(x, y, w, 1, "")
 361 // {
 362 //      this->plugin = plugin;
 363 //      this->gui = gui;
 364 // }
 365 //
 366 // int LensPresetText::handle_event()
 367 // {
 368 // }
 369
 370
 371 LensInterpItem::LensInterpItem(const char *text, int id)
 372  : BC_MenuItem(text)
 373 {
 374         this->id = id;
 375 }
 376
 377 int LensInterpItem::handle_event()
 378 {
 379         LensInterp *interp = (LensInterp *)get_popup_menu();
 380         interp->set_value(id);
 381         LensMain *plugin = interp->plugin;
 382         plugin->config.interp = id;
 383         plugin->send_configure_change();
 384         return 1;
 385 }
 386
 387 LensInterp::LensInterp(LensMain *plugin, int x, int y)
 388  : BC_PopupMenu(x, y, 120, "")
 389 {
 390         this->plugin = plugin;
 391 }
 392
 393 void LensInterp::create_objects()
 394 {
 395         add_item(new LensInterpItem(_("Default"), LensConfig::INTERP_DEFAULT));
 396         add_item(new LensInterpItem(_("Nearest"), LensConfig::INTERP_NEAREST));
 397         add_item(new LensInterpItem(_("BiLinear"), LensConfig::INTERP_BILINEAR));
 398         add_item(new LensInterpItem(_("BiCubic"), LensConfig::INTERP_BICUBIC));
 399         set_value(plugin->config.interp);
 400 }
 401
 402 void LensInterp::set_value(int id)
 403 {
 404         for( int i=0, n=total_items(); i<n; ++i ) {
 405                 LensInterpItem *item = (LensInterpItem *)get_item(i);
 406                 if( item->id == id ) {
 407                         set_text(item->get_text());
 408                         value = id;
 409                         return;
 410                 }
 411         }
 412 }
 413
 414 int LensInterp::get_value()
 415 {
 416         return value;
 417 }
 418
 419
 420 LensReset::LensReset(LensMain *plugin, LensGUI *gui, int x, int y)
 421  : BC_GenericButton(x, y, _("Reset"))
 422 {
 423         this->plugin = plugin;
 424         this->gui = gui;
 425 }
 426
 427 int LensReset::handle_event()
 428 {
 429         plugin->config.reset();
 430         gui->update_gui();
 431         plugin->send_configure_change();
 432         return 1;
 433 }
 434
 435
 436 LensGUI::LensGUI(LensMain *plugin)
 437  : PluginClientWindow(plugin, 350, 550, 350, 550, 0)
 438 {
 439         this->plugin = plugin;
 440 }
 441
 442 LensGUI::~LensGUI()
 443 {
 444 }
 445
 446
 447 void LensGUI::create_objects()
 448 {
 449         int x = 10;
 450         int y = 10;
 451         int x1;
 452         BC_Title *title = 0;
 453         LensToggle *toggle;
 454
 455         for( int i=0; i<FOV_CHANNELS; ++i ) {
 456                 switch( i ) {
 457                 case 0: add_tool(title = new BC_Title(x, y, _("R Field of View:"))); break;
 458                 case 1: add_tool(title = new BC_Title(x, y, _("G Field of View:"))); break;
 459                 case 2: add_tool(title = new BC_Title(x, y, _("B Field of View:"))); break;
 460                 case 3: add_tool(title = new BC_Title(x, y, _("A Field of View:"))); break;
 461                 }
 462
 463                 y += title->get_h() + 5;
 464                 add_tool(fov_slider[i] = new LensSlider(plugin, this,
 465                         0, &plugin->config.fov[i], x, y, 0.0001, 1.0));
 466                 x1 = x + fov_slider[i]->get_w() + 5;
 467                 add_tool(fov_text[i] = new LensText(plugin, this,
 468                         fov_slider[i], &plugin->config.fov[i], x1, y));
 469                 fov_slider[i]->text = fov_text[i];
 470                 y += fov_text[i]->get_h() + 5;
 471         }
 472
 473         add_tool(toggle = new LensToggle(plugin, &plugin->lock, x, y, _("Lock")));
 474         y += toggle->get_h() + 10;
 475
 476         BC_Bar *bar;
 477         add_tool(bar = new BC_Bar(x, y, get_w() - x * 2));
 478         y += bar->get_h() + 5;
 479
 480         add_tool(title = new BC_Title(x, y, _("Aspect Ratio:")));
 481         y += title->get_h() + 5;
 482         add_tool(aspect_slider = new LensSlider(plugin, this,
 483                 0, &plugin->config.aspect, x, y, 0.333, 3.0));
 484         x1 = x + aspect_slider->get_w() + 5;
 485         add_tool(aspect_text = new LensText(plugin, this,
 486                 aspect_slider, &plugin->config.aspect, x1, y));
 487         aspect_slider->text = aspect_text;
 488         y += aspect_text->get_h() + 5;
 489
 490         add_tool(title = new BC_Title(x, y, _("Radius:")));
 491         y += title->get_h() + 5;
 492         add_tool(radius_slider = new LensSlider(plugin, this,
 493                 0, &plugin->config.radius, x, y, 0.333, 3.0));
 494         x1 = x + radius_slider->get_w() + 5;
 495         add_tool(radius_text = new LensText(plugin, this,
 496                 radius_slider, &plugin->config.radius, x1, y));
 497         radius_slider->text = radius_text;
 498         y += radius_text->get_h() + 5;
 499
 500         add_tool(title = new BC_Title(x, y, _("Center X:")));
 501         y += title->get_h() + 5;
 502         add_tool(centerx_slider = new LensSlider(plugin, this,
 503                 0, &plugin->config.center_x, x, y, 0.0, 99.0));
 504         x1 = x + centerx_slider->get_w() + 5;
 505         add_tool(centerx_text = new LensText(plugin, this,
 506                 centerx_slider, &plugin->config.center_x, x1, y));
 507         centerx_slider->text = centerx_text;
 508         centerx_slider->set_precision(1.0);
 509         y += centerx_text->get_h() + 5;
 510
 511
 512         add_tool(title = new BC_Title(x, y, _("Center Y:")));
 513         y += title->get_h() + 5;
 514         add_tool(centery_slider = new LensSlider(plugin, this,
 515                 0, &plugin->config.center_y, x, y, 0.0, 99.0));
 516         x1 = x + centery_slider->get_w() + 5;
 517         add_tool(centery_text = new LensText(plugin, this,
 518                 centery_slider, &plugin->config.center_y, x1, y));
 519         centery_slider->text = centery_text;
 520         centery_slider->set_precision(1.0);
 521         y += centery_text->get_h() + 10;
 522
 523         add_tool(bar = new BC_Bar(x, y, get_w() - x * 2));
 524         y += bar->get_h() + 5;
 525
 526
 527 //      add_tool(reverse = new LensToggle(plugin,
 528 //              &plugin->config.reverse, x, y, _("Reverse")));
 529 //      y += reverse->get_h() + 5;
 530         add_tool(draw_guides = new LensToggle(plugin,
 531                 &plugin->config.draw_guides, x, y, _("Draw center")));
 532         y += draw_guides->get_h() + 5;
 533
 534
 535         add_tool(title = new BC_Title(x, y, _("Mode:")));
 536         add_tool(mode = new LensMode(plugin, this,
 537                 x + title->get_w() + 5, y));
 538         mode->create_objects();
 539         y += mode->get_h() + 5;
 540
 541         add_tool(title = new BC_Title(x, y, _("Interp:")));
 542         x1 = x + title->get_w() + 5;
 543         add_tool(interp = new LensInterp(plugin, x1, y));
 544         interp->create_objects();
 545         y += interp->get_h() + 5;
 546
 547         add_tool(reset = new LensReset(plugin, this, x, y));
 548         y += reset->get_h() + 5;
 549
 550 //      add_tool(title = new BC_Title(x, y, _("Preset:")));
 551 //      add_tool(presets = new LensPresets(plugin, this,
 552 //              x + title->get_w() + 5, y, get_w() - x - title->get_w() - 50));
 553 //      presets->create_objects();
 554 //      y += presets->get_h() + 5;
 555 //
 556 //      add_tool(save_preset = new LensSavePreset(plugin, this, x, y));
 557 //      add_tool(preset_text = new LensPresetText(plugin, this,
 558 //              x + save_preset->get_w() + 5, y,
 559 //              get_w() - x - save_preset->get_w() - 10));
 560 //      y += preset_text->get_h() + 5;
 561 //      add_tool(delete_preset = new LensDeletePreset(plugin, this, x, y));
 562
 563         show_window();
 564         flush();
 565 }
 566
 567
 568 LensMain::LensMain(PluginServer *server)
 569  : PluginVClient(server)
 570 {
 571
 572         engine = 0;
 573         lock = 0;
 574         current_preset = -1;
 575 }
 576
 577 LensMain::~LensMain()
 578 {
 579
 580         delete engine;
 581         presets.remove_all_objects();
 582 }
 583
 584 NEW_WINDOW_MACRO(LensMain, LensGUI)
 585 LOAD_CONFIGURATION_MACRO(LensMain, LensConfig)
 586 int LensMain::is_realtime() { return 1; }
 587 const char* LensMain::plugin_title() { return N_("Lens"); }
 588
 589 void LensMain::update_gui()
 590 {
 591         if( !thread ) return;
 592         if( !load_configuration() ) return;
 593         ((LensGUI *)thread->window)->lock_window("LensMain::update_gui");
 594         LensGUI *gui = (LensGUI *)thread->window;
 595         gui->update_gui();
 596         gui->unlock_window();
 597 }
 598
 599 void LensGUI::update_gui()
 600 {
 601         LensConfig &config = plugin->config;
 602         for( int i=0; i<FOV_CHANNELS; ++i ) {
 603                 fov_slider[i]->update(config.fov[i]);
 604                 fov_text[i]->update(config.fov[i]);
 605         }
 606         aspect_slider->update(config.aspect);
 607         aspect_text->update(config.aspect);
 608         radius_slider->update(config.radius);
 609         radius_text->update(config.radius);
 610         centerx_slider->update(config.center_x);
 611         centerx_text->update(config.center_x);
 612         centery_slider->update(config.center_y);
 613         centery_text->update(config.center_y);
 614         mode->update(config.mode);
 615         draw_guides->update(config.draw_guides);
 616         interp->set_value(config.interp);
 617 }
 618
 619 //void LensMain::save_presets()
 620 //{
 621 //      char path[BCTEXTLEN], string[BCTEXTLEN];
 622 //      sprintf(path, "%s/lenspresets.rc", File::get_config_path());
 623 //      BC_Hash *defaults = new BC_Hash(path);
 624 //
 625 //// Save presets
 626 //      defaults->update("TOTAL_PRESETS", presets.total);
 627 //      for( int i=0; i<presets.total; ++i ) {
 628 //              LensPreset *preset = presets.values[i];
 629 //              sprintf(string, "TITLE_%d", i);
 630 //              defaults->update(string, preset->title);
 631 //
 632 //              for( int j=0; j<FOV_CHANNELS; ++j ) {
 633 //                      sprintf(string, "FOCAL_LENGTH_%d_%d", i, j);
 634 //                      defaults->update(string, preset->fov[j]);
 635 //              }
 636 //
 637 //              sprintf(string, "ASPECT_%d", i);
 638 //              defaults->update(string, preset->aspect);
 639 //              sprintf(string, "RADIUS_%d", i);
 640 //              defaults->update(string, preset->radius);
 641 //              sprintf(string, "MODE_%d", i);
 642 //              defaults->update(string, preset->mode);
 643 //      }
 644 //
 645 //      defaults->save();
 646 //      delete defaults;
 647 //}
 648
 649
 650 void LensMain::save_data(KeyFrame *keyframe)
 651 {
 652         FileXML output;
 653         char string[BCTEXTLEN];
 654
 655
 656
 657 // cause data to be stored directly in text
 658         output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
 659         output.tag.set_title("LENS");
 660         for( int i = 0; i < FOV_CHANNELS; ++i ) {
 661                 sprintf(string, "FOCAL_LENGTH%d", i);
 662                 output.tag.set_property(string, config.fov[i]);
 663         }
 664         output.tag.set_property("ASPECT", config.aspect);
 665         output.tag.set_property("RADIUS", config.radius);
 666         output.tag.set_property("MODE", config.mode);
 667         output.tag.set_property("INTERP", config.interp);
 668         output.tag.set_property("CENTER_X", config.center_x);
 669         output.tag.set_property("CENTER_Y", config.center_y);
 670         output.tag.set_property("DRAW_GUIDES", config.draw_guides);
 671         output.append_tag();
 672         output.tag.set_title("/LENS");
 673         output.append_tag();
 674         output.append_newline();
 675         output.terminate_string();
 676
 677 }
 678
 679
 680 void LensMain::read_data(KeyFrame *keyframe)
 681 {
 682         FileXML input;
 683         char string[BCTEXTLEN];
 684
 685
 686         input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
 687
 688         int result = 0;
 689
 690         while(!result)
 691         {
 692                 result = input.read_tag();
 693
 694                 if( !result ) {
 695                         if( input.tag.title_is("LENS") ) {
 696                                 for( int i=0; i<FOV_CHANNELS; ++i ) {
 697                                         sprintf(string, "FOCAL_LENGTH%d", i);
 698                                         config.fov[i] = input.tag.get_property(string, config.fov[i]);
 699                                 }
 700                                 config.aspect = input.tag.get_property("ASPECT", config.aspect);
 701                                 config.radius = input.tag.get_property("RADIUS", config.radius);
 702                                 config.mode = input.tag.get_property("MODE", config.mode);
 703                                 config.interp = input.tag.get_property("INTERP", config.interp);
 704                                 config.center_x = input.tag.get_property("CENTER_X", config.center_x);
 705                                 config.center_y = input.tag.get_property("CENTER_Y", config.center_y);
 706                                 config.draw_guides = input.tag.get_property("DRAW_GUIDES", config.draw_guides);
 707                         }
 708                 }
 709         }
 710 }
 711
 712
 713
 714 int LensMain::process_buffer(VFrame *frame,
 715         int64_t start_position,
 716         double frame_rate)
 717 {
 718         load_configuration();
 719         int use_opengl = config.interp != LensConfig::INTERP_DEFAULT ? 0 :
 720                 get_use_opengl();
 721         VFrame *input = use_opengl ? frame :
 722                 new_temp(frame->get_w(), frame->get_h(), frame->get_color_model());
 723         read_frame(input, 0, start_position, frame_rate, use_opengl);
 724
 725         if( use_opengl ) {
 726                 run_opengl();
 727                 return 0;
 728         }
 729
 730         if( !engine ) engine = new LensEngine(this);
 731         engine->process_packages();
 732
 733         if( config.draw_guides ) {
 734 // Draw center
 735 #define CENTER_H 20
 736 #define CENTER_W 20
 737 #define DRAW_GUIDES(components, type, max) \
 738 { \
 739         type **rows = (type**)get_output()->get_rows(); \
 740         if( (center_x >= 0 && center_x < w) || (center_y >= 0 && center_y < h) ) { \
 741                 type *hrow = rows[center_y] + components * (center_x - CENTER_W / 2); \
 742                 for( int i=center_x-CENTER_W/2; i<=center_x+CENTER_W/2; ++i ) { \
 743                         if( i >= 0 && i < w ) { \
 744                                 hrow[0] = max - hrow[0]; \
 745                                 hrow[1] = max - hrow[1]; \
 746                                 hrow[2] = max - hrow[2]; \
 747                                 hrow += components; \
 748                         } \
 749                 } \
 750  \
 751                 for( int i=center_y-CENTER_H/2; i<=center_y+CENTER_H/2; ++i ) { \
 752                         if( i >= 0 && i < h ) { \
 753                                 type *vrow = rows[i] + center_x * components; \
 754                                 vrow[0] = max - vrow[0]; \
 755                                 vrow[1] = max - vrow[1]; \
 756                                 vrow[2] = max - vrow[2]; \
 757                         } \
 758                 } \
 759         } \
 760 }
 761
 762                 int w = get_output()->get_w();
 763                 int h = get_output()->get_h();
 764                 int center_x = (int)(config.center_x * w / 100);
 765                 int center_y = (int)(config.center_y * h / 100);
 766                 switch( get_output()->get_color_model() ) {
 767                 case BC_RGB_FLOAT:
 768                         DRAW_GUIDES(3, float, 1.0)
 769                         break;
 770                 case BC_RGBA_FLOAT:
 771                         DRAW_GUIDES(4, float, 1.0)
 772                         break;
 773                 case BC_RGB888:
 774                         DRAW_GUIDES(3, unsigned char, 0xff)
 775                         break;
 776                 case BC_RGBA8888:
 777                         DRAW_GUIDES(4, unsigned char, 0xff)
 778                         break;
 779                 case BC_YUV888:
 780                         DRAW_GUIDES(3, unsigned char, 0xff)
 781                         break;
 782                 case BC_YUVA8888:
 783                         DRAW_GUIDES(4, unsigned char, 0xff)
 784                         break;
 785                 }
 786         }
 787
 788         return 0;
 789 }
 790
 791
 792 int LensMain::handle_opengl()
 793 {
 794 #ifdef HAVE_GL
 795         static const char *shrink_frag =
 796                 "uniform sampler2D tex;\n"
 797                 "uniform vec2 texture_extents;\n"
 798                 "uniform vec2 image_extents;\n"
 799                 "uniform vec2 aspect;\n"
 800                 "uniform vec2 center_coord;\n"
 801                 "uniform vec4 border_color;\n"
 802                 "uniform vec4 r;\n"
 803                 "uniform vec4 max_z;\n"
 804                 "void main()\n"
 805                 "{\n"
 806                 "       vec2 outcoord = gl_TexCoord[0].st * texture_extents;\n"
 807                 "       vec2 coord_diff = outcoord - center_coord;\n"
 808                 "       if( coord_diff.x == 0.0 && coord_diff.y == 0.0 )\n"
 809                 "       {\n"
 810                 "               gl_FragColor = texture2D(tex, outcoord);\n"
 811                 "       }\n"
 812                 "       else\n"
 813                 "       {\n"
 814                 "               float z = sqrt(coord_diff.x * coord_diff.x +\n"
 815                 "                                               coord_diff.y * coord_diff.y);\n"
 816                 "               float a2 = atan(coord_diff.y, coord_diff.x);\n"
 817                 "               vec4 a1 = asin(vec4(z, z, z, z) / r);\n"
 818                 "               vec4 z_in = a1 * max_z * 2.0 / 3.14159;\n"
 819                 "               vec4 in_x;\n"
 820                 "               vec4 in_y;\n"
 821                 "               in_x = z_in * cos(a2) * aspect.x + center_coord.x;\n"
 822                 "               in_y = z_in * sin(a2) * aspect.y + center_coord.y;\n"
 823                 "               if( z > r.r || in_x.r < 0.0 || in_x.r >= image_extents.x || in_y.r < 0.0 || in_y.r >= image_extents.y )\n"
 824                 "                       gl_FragColor.r = border_color.r;\n"
 825                 "               else\n"
 826                 "                       gl_FragColor.r = texture2D(tex, vec2(in_x.r, in_y.r) / texture_extents).r;\n"
 827                 "               if( z > r.g || in_x.g < 0.0 || in_x.g >= image_extents.x || in_y.g < 0.0 || in_y.g >= image_extents.y )\n"
 828                 "                       gl_FragColor.g = border_color.g;\n"
 829                 "               else\n"
 830                 "                       gl_FragColor.g = texture2D(tex, vec2(in_x.g, in_y.g) / texture_extents).g;\n"
 831                 "               if( z > r.b || in_x.b < 0.0 || in_x.b >= image_extents.x || in_y.b < 0.0 || in_y.b >= image_extents.y )\n"
 832                 "                       gl_FragColor.b = border_color.b;\n"
 833                 "               else\n"
 834                 "                       gl_FragColor.b = texture2D(tex, vec2(in_x.b, in_y.b) / texture_extents).b;\n"
 835                 "               if( z > r.a || in_x.a < 0.0 || in_x.a >= image_extents.x || in_y.a < 0.0 || in_y.a >= image_extents.y )\n"
 836                 "                       gl_FragColor.a = border_color.a;\n"
 837                 "               else\n"
 838                 "                       gl_FragColor.a = texture2D(tex, vec2(in_x.a, in_y.a) / texture_extents).a;\n"
 839                 "       }\n"
 840                 "}\n";
 841
 842         static const char *stretch_frag =
 843                 "uniform sampler2D tex;\n"
 844                 "uniform vec2 texture_extents;\n"
 845                 "uniform vec2 image_extents;\n"
 846                 "uniform vec2 aspect;\n"
 847                 "uniform vec2 center_coord;\n"
 848                 "uniform vec4 border_color;\n"
 849                 "uniform vec4 r;\n"
 850                 "void main()\n"
 851                 "{\n"
 852                 "       vec2 outcoord = gl_TexCoord[0].st * texture_extents;\n"
 853                 "       vec2 coord_diff = outcoord - center_coord;\n"
 854                 "       float z = sqrt(coord_diff.x * coord_diff.x +\n"
 855                 "                                       coord_diff.y * coord_diff.y);\n"
 856                 "       vec4 a1 = (vec4(z, z, z, z) / (3.14159 * r / 2.0)) * (3.14159 / 2.0);\n"
 857                 "       vec4 z_in = r * sin(a1);\n"
 858                 "       float a2;\n"
 859                 "       if( coord_diff.x == 0.0 )\n"
 860                 "       {\n"
 861                 "               if( coord_diff.y < 0.0 )\n"
 862                 "                       a2 = 3.0 * 3.14159 / 2.0;\n"
 863                 "               else\n"
 864                 "                       a2 = 3.14159 / 2.0;\n"
 865                 "       }\n"
 866                 "       else\n"
 867                 "               a2 = atan(coord_diff.y, coord_diff.x);\n"
 868                 "       vec4 in_x;\n"
 869                 "       vec4 in_y;\n"
 870                 "       in_x = z_in * cos(a2) * aspect.x + center_coord.x;\n"
 871                 "       in_y = z_in * sin(a2) * aspect.y + center_coord.y;\n"
 872                 "       if( in_x.r < 0.0 || in_x.r >= image_extents.x || in_y.r < 0.0 || in_y.r >= image_extents.y )\n"
 873                 "               gl_FragColor.r = border_color.r;\n"
 874                 "       else\n"
 875                 "               gl_FragColor.r = texture2D(tex, vec2(in_x.r, in_y.r) / texture_extents).r;\n"
 876                 "       if( in_x.g < 0.0 || in_x.g >= image_extents.x || in_y.g < 0.0 || in_y.g >= image_extents.y )\n"
 877                 "               gl_FragColor.g = border_color.g;\n"
 878                 "       else\n"
 879                 "               gl_FragColor.g = texture2D(tex, vec2(in_x.g, in_y.g) / texture_extents).g;\n"
 880                 "       if( in_x.b < 0.0 || in_x.b >= image_extents.x || in_y.b < 0.0 || in_y.b >= image_extents.y )\n"
 881                 "               gl_FragColor.b = border_color.b;\n"
 882                 "       else\n"
 883                 "               gl_FragColor.b = texture2D(tex, vec2(in_x.b, in_y.b) / texture_extents).b;\n"
 884                 "       if( in_x.a < 0.0 || in_x.a >= image_extents.x || in_y.a < 0.0 || in_y.a >= image_extents.y )\n"
 885                 "               gl_FragColor.a = border_color.a;\n"
 886                 "       else\n"
 887                 "               gl_FragColor.a = texture2D(tex, vec2(in_x.a, in_y.a) / texture_extents).a;\n"
 888                 "}\n";
 889
 890
 891         static const char *rectilinear_stretch_frag =
 892                 "uniform sampler2D tex;\n"
 893                 "uniform vec2 texture_extents;\n"
 894                 "uniform vec2 image_extents;\n"
 895                 "uniform vec2 aspect;\n"
 896                 "uniform vec2 center_coord;\n"
 897                 "uniform vec4 border_color;\n"
 898                 "uniform vec4 r;\n"
 899                 "uniform float radius;\n"
 900                 "void main()\n"
 901                 "{\n"
 902                 "       vec2 outcoord = gl_TexCoord[0].st * texture_extents;\n"
 903                 "       vec2 coord_diff = outcoord - center_coord;\n"
 904                 "       float z = sqrt(coord_diff.x * coord_diff.x +\n"
 905                 "                                       coord_diff.y * coord_diff.y);\n"
 906                 "       vec4 radius1 = (vec4(z, z, z, z) / r) * 2.0 * radius;\n"
 907                 "       vec4 z_in = r * atan(radius1) / (3.14159 / 2.0);\n"
 908                 "\n"
 909                 "       float angle;\n"
 910                 "       if( coord_diff.x == 0.0 )\n"
 911                 "       {\n"
 912                 "               if( coord_diff.y < 0.0 )\n"
 913                 "                       angle = 3.0 * 3.14159 / 2.0;\n"
 914                 "               else\n"
 915                 "                       angle = 3.14159 / 2.0;\n"
 916                 "       }\n"
 917                 "       else\n"
 918                 "               angle = atan(coord_diff.y, coord_diff.x);\n"
 919                 "       vec4 in_x;\n"
 920                 "       vec4 in_y;\n"
 921                 "\n"
 922                 "       in_x = z_in * cos(angle) * aspect.x + center_coord.x;\n"
 923                 "       in_y = z_in * sin(angle) * aspect.y + center_coord.y;\n"
 924                 "       if( in_x.r < 0.0 || in_x.r >= image_extents.x || in_y.r < 0.0 || in_y.r >= image_extents.y )\n"
 925                 "               gl_FragColor.r = border_color.r;\n"
 926                 "       else\n"
 927                 "               gl_FragColor.r = texture2D(tex, vec2(in_x.r, in_y.r) / texture_extents).r;\n"
 928                 "       if( in_x.g < 0.0 || in_x.g >= image_extents.x || in_y.g < 0.0 || in_y.g >= image_extents.y )\n"
 929                 "               gl_FragColor.g = border_color.g;\n"
 930                 "       else\n"
 931                 "               gl_FragColor.g = texture2D(tex, vec2(in_x.g, in_y.g) / texture_extents).g;\n"
 932                 "       if( in_x.b < 0.0 || in_x.b >= image_extents.x || in_y.b < 0.0 || in_y.b >= image_extents.y )\n"
 933                 "               gl_FragColor.b = border_color.b;\n"
 934                 "       else\n"
 935                 "               gl_FragColor.b = texture2D(tex, vec2(in_x.b, in_y.b) / texture_extents).b;\n"
 936                 "       if( in_x.a < 0.0 || in_x.a >= image_extents.x || in_y.a < 0.0 || in_y.a >= image_extents.y )\n"
 937                 "               gl_FragColor.a = border_color.a;\n"
 938                 "       else\n"
 939                 "               gl_FragColor.a = texture2D(tex, vec2(in_x.a, in_y.a) / texture_extents).a;\n"
 940                 "}\n";
 941
 942         static const char *rectilinear_shrink_frag =
 943                 "uniform sampler2D tex;\n"
 944                 "uniform vec2 texture_extents;\n"
 945                 "uniform vec2 image_extents;\n"
 946                 "uniform vec2 aspect;\n"
 947                 "uniform vec2 center_coord;\n"
 948                 "uniform vec4 border_color;\n"
 949                 "uniform vec4 r;\n"
 950                 "void main()\n"
 951                 "{\n"
 952                 "       vec2 outcoord = gl_TexCoord[0].st * texture_extents;\n"
 953                 "       vec2 coord_diff = outcoord - center_coord;\n"
 954                 "       float z = sqrt(coord_diff.x * coord_diff.x +\n"
 955                 "                                       coord_diff.y * coord_diff.y);\n"
 956                 "       vec4 radius1 = vec4(z, z, z, z) / r;\n"
 957                 "       vec4 z_in = r * tan(radius1) / (3.14159 / 2.0);\n"
 958                 "\n"
 959                 "       float angle;\n"
 960                 "       if( coord_diff.x == 0.0 )\n"
 961                 "       {\n"
 962                 "               if( coord_diff.y < 0.0 )\n"
 963                 "                       angle = 3.0 * 3.14159 / 2.0;\n"
 964                 "               else\n"
 965                 "                       angle = 3.14159 / 2.0;\n"
 966                 "       }\n"
 967                 "       else\n"
 968                 "               angle = atan(coord_diff.y, coord_diff.x);\n"
 969                 "       vec4 in_x;\n"
 970                 "       vec4 in_y;\n"
 971                 "\n"
 972                 "       in_x = z_in * cos(angle) * aspect.x + center_coord.x;\n"
 973                 "       in_y = z_in * sin(angle) * aspect.y + center_coord.y;\n"
 974                 "       if( in_x.r < 0.0 || in_x.r >= image_extents.x || in_y.r < 0.0 || in_y.r >= image_extents.y )\n"
 975                 "               gl_FragColor.r = border_color.r;\n"
 976                 "       else\n"
 977                 "               gl_FragColor.r = texture2D(tex, vec2(in_x.r, in_y.r) / texture_extents).r;\n"
 978                 "       if( in_x.g < 0.0 || in_x.g >= image_extents.x || in_y.g < 0.0 || in_y.g >= image_extents.y )\n"
 979                 "               gl_FragColor.g = border_color.g;\n"
 980                 "       else\n"
 981                 "               gl_FragColor.g = texture2D(tex, vec2(in_x.g, in_y.g) / texture_extents).g;\n"
 982                 "       if( in_x.b < 0.0 || in_x.b >= image_extents.x || in_y.b < 0.0 || in_y.b >= image_extents.y )\n"
 983                 "               gl_FragColor.b = border_color.b;\n"
 984                 "       else\n"
 985                 "               gl_FragColor.b = texture2D(tex, vec2(in_x.b, in_y.b) / texture_extents).b;\n"
 986                 "       if( in_x.a < 0.0 || in_x.a >= image_extents.x || in_y.a < 0.0 || in_y.a >= image_extents.y )\n"
 987                 "               gl_FragColor.a = border_color.a;\n"
 988                 "       else\n"
 989                 "               gl_FragColor.a = texture2D(tex, vec2(in_x.a, in_y.a) / texture_extents).a;\n"
 990                 "}\n";
 991
 992         get_output()->to_texture();
 993         get_output()->enable_opengl();
 994
 995         unsigned int shader = 0;
 996         const char *shader_frag = 0;
 997         switch( config.mode ) {
 998         case LensConfig::SPHERICAL_SHRINK:
 999                 shader_frag = shrink_frag;
1000                 break;
1001         case LensConfig::SPHERICAL_STRETCH:
1002                 shader_frag = stretch_frag;
1003                 break;
1004         case LensConfig::RECTILINEAR_STRETCH:
1005                 shader_frag = rectilinear_stretch_frag;
1006                 break;
1007         case LensConfig::RECTILINEAR_SHRINK:
1008                 shader_frag = rectilinear_shrink_frag;
1009                 break;
1010         }
1011         if( shader_frag )
1012                 shader = VFrame::make_shader(0, shader_frag, 0);
1013         if( shader > 0 ) {
1014                 float border_color[] = { 0, 0, 0, 0 };
1015                 if( BC_CModels::is_yuv(get_output()->get_color_model()) ) {
1016                         border_color[1] = border_color[2] = 0.5;
1017                 }
1018
1019                 double x_factor = config.aspect;
1020                 double y_factor = 1.0 / config.aspect;
1021                 if( x_factor < 1 ) x_factor = 1;
1022                 if( y_factor < 1 ) y_factor = 1;
1023
1024                 glUseProgram(shader);
1025                 glUniform1i(glGetUniformLocation(shader, "tex"), 0);
1026                 glUniform2f(glGetUniformLocation(shader, "aspect"),
1027                         x_factor,
1028                         y_factor);
1029                 glUniform2f(glGetUniformLocation(shader, "center_coord"),
1030                                 (GLfloat)get_input()->get_w() * config.center_x / 100.0,
1031                                 (GLfloat)get_input()->get_h() * config.center_y / 100.0);
1032                 glUniform2f(glGetUniformLocation(shader, "texture_extents"),
1033                                 (GLfloat)get_input()->get_texture_w(),
1034                                 (GLfloat)get_input()->get_texture_h());
1035                 glUniform2f(glGetUniformLocation(shader, "image_extents"),
1036                                 (GLfloat)get_input()->get_w(),
1037                                 (GLfloat)get_input()->get_h());
1038
1039                 int width = get_output()->get_w();
1040                 int height = get_output()->get_h();
1041                 float *fov = config.fov;
1042                 float dim;
1043                 float max_z;
1044                 switch( config.mode ) {
1045                 case LensConfig::SPHERICAL_SHRINK:
1046                         dim = MAX(width, height) * config.radius;
1047                         max_z = dim * sqrt(2.0) / 2;
1048                         glUniform4fv(glGetUniformLocation(shader, "border_color"),
1049                                         1, (GLfloat*)border_color);
1050                         glUniform4f(glGetUniformLocation(shader, "max_z"),
1051                                         max_z / fov[0],
1052                                         max_z / fov[1],
1053                                         max_z / fov[2],
1054                                         max_z / fov[3]);
1055                         glUniform4f(glGetUniformLocation(shader, "r"),
1056                                         (max_z / fov[0]) * 2 / M_PI,
1057                                         (max_z / fov[1]) * 2 / M_PI,
1058                                         (max_z / fov[2]) * 2 / M_PI,
1059                                         (max_z / fov[3]) * 2 / M_PI);
1060                         break;
1061
1062                 case LensConfig::SPHERICAL_STRETCH:
1063                         dim = MAX(width, height) * config.radius;
1064                         max_z = dim * sqrt(2.0) / 2;
1065                         glUniform4f(glGetUniformLocation(shader, "r"),
1066                                         max_z / M_PI / (fov[0] / 2.0),
1067                                         max_z / M_PI / (fov[1] / 2.0),
1068                                         max_z / M_PI / (fov[2] / 2.0),
1069                                         max_z / M_PI / (fov[3] / 2.0));
1070                         break;
1071
1072                 case LensConfig::RECTILINEAR_STRETCH:
1073                         max_z = sqrt(SQR(width) + SQR(height)) / 2;
1074                         glUniform4f(glGetUniformLocation(shader, "r"),
1075                                         max_z / M_PI / (fov[0] / 2.0),
1076                                         max_z / M_PI / (fov[1] / 2.0),
1077                                         max_z / M_PI / (fov[2] / 2.0),
1078                                         max_z / M_PI / (fov[3] / 2.0));
1079                         glUniform1f(glGetUniformLocation(shader, "radius"),
1080                                         config.radius);
1081                         break;
1082
1083                 case LensConfig::RECTILINEAR_SHRINK:
1084                         max_z = MAX(width, height) / 2 * config.radius;
1085                         glUniform4f(glGetUniformLocation(shader, "r"),
1086                                         max_z / fov[0],
1087                                         max_z / fov[1],
1088                                         max_z / fov[2],
1089                                         max_z / fov[3]);
1090                         break;
1091                 }
1092
1093                 get_output()->init_screen();
1094                 get_output()->bind_texture(0);
1095                 glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, border_color);
1096                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
1097                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
1098                 get_output()->draw_texture();
1099                 glUseProgram(0);
1100
1101                 if( config.draw_guides ) {
1102                         int w = get_output()->get_w();
1103                         int h = get_output()->get_h();
1104                         int center_x = (int)(config.center_x * w / 100);
1105                         int center_y = (int)(config.center_y * h / 100);
1106
1107                         glDisable(GL_TEXTURE_2D);
1108                         glColor4f(0.0, 0.0, 0.0, 1.0);
1109                         glBegin(GL_LINES);
1110                         glVertex3f(center_x, -h + center_y - CENTER_H / 2, 0.0);
1111                         glVertex3f(center_x, -h + center_y + CENTER_H / 2, 0.0);
1112                         glEnd();
1113                         glBegin(GL_LINES);
1114                         glVertex3f(center_x - CENTER_W / 2, -h + center_y, 0.0);
1115                         glVertex3f(center_x + CENTER_W / 2, -h + center_y, 0.0);
1116                         glEnd();
1117                         glColor4f(1.0, 1.0, 1.0, 1.0);
1118                         glBegin(GL_LINES);
1119                         glVertex3f(center_x - 1, -h + center_y - CENTER_H / 2 - 1, 0.0);
1120                         glVertex3f(center_x - 1, -h + center_y + CENTER_H / 2 - 1, 0.0);
1121                         glEnd();
1122                         glBegin(GL_LINES);
1123                         glVertex3f(center_x - CENTER_W / 2 - 1, -h + center_y - 1, 0.0);
1124                         glVertex3f(center_x + CENTER_W / 2 - 1, -h + center_y - 1, 0.0);
1125                         glEnd();
1126                 }
1127                 get_output()->set_opengl_state(VFrame::SCREEN);
1128         }
1129
1130 #endif
1131         return 0;
1132 }
1133
1134 // do using specified interpolation
1135 #define DO_LENS(type) \
1136         int icolor_model = plugin->get_input()->get_color_model(); \
1137         switch( plugin->config.interp ) { \
1138         case LensConfig::INTERP_NEAREST: \
1139                 switch( icolor_model ) { \
1140                 case BC_RGB888: \
1141                         DO_LENS_##type(unsigned char, 3, 0xff, 0x0, nearest); \
1142                         break; \
1143                 case BC_RGBA8888: \
1144                         DO_LENS_##type(unsigned char, 4, 0xff, 0x0, nearest); \
1145                         break; \
1146                 case BC_RGB_FLOAT: \
1147                         DO_LENS_##type(float, 3, 1.0, 0.0, nearest); \
1148                         break; \
1149                 case BC_RGBA_FLOAT: \
1150                         DO_LENS_##type(float, 4, 1.0, 0.0, nearest); \
1151                         break; \
1152                 case BC_YUV888: \
1153                         DO_LENS_##type(unsigned char, 3, 0xff, 0x80, nearest); \
1154                         break; \
1155                 case BC_YUVA8888: \
1156                         DO_LENS_##type(unsigned char, 4, 0xff, 0x80, nearest); \
1157                         break; \
1158                 } \
1159                 break; \
1160         case LensConfig::INTERP_DEFAULT: \
1161         case LensConfig::INTERP_BILINEAR: \
1162                 switch( icolor_model ) { \
1163                 case BC_RGB888: \
1164                         DO_LENS_##type(unsigned char, 3, 0xff, 0x0, bi_linear); \
1165                         break; \
1166                 case BC_RGBA8888: \
1167                         DO_LENS_##type(unsigned char, 4, 0xff, 0x0, bi_linear); \
1168                         break; \
1169                 case BC_RGB_FLOAT: \
1170                         DO_LENS_##type(float, 3, 1.0, 0.0, bi_linear); \
1171                         break; \
1172                 case BC_RGBA_FLOAT: \
1173                         DO_LENS_##type(float, 4, 1.0, 0.0, bi_linear); \
1174                         break; \
1175                 case BC_YUV888: \
1176                         DO_LENS_##type(unsigned char, 3, 0xff, 0x80, bi_linear); \
1177                         break; \
1178                 case BC_YUVA8888: \
1179                         DO_LENS_##type(unsigned char, 4, 0xff, 0x80, bi_linear); \
1180                         break; \
1181                 } \
1182                 break; \
1183         case LensConfig::INTERP_BICUBIC: \
1184                 switch( icolor_model ) { \
1185                 case BC_RGB888: \
1186                         DO_LENS_##type(unsigned char, 3, 0xff, 0x0, bi_cubic); \
1187                         break; \
1188                 case BC_RGBA8888: \
1189                         DO_LENS_##type(unsigned char, 4, 0xff, 0x0, bi_cubic); \
1190                         break; \
1191                 case BC_RGB_FLOAT: \
1192                         DO_LENS_##type(float, 3, 1.0, 0.0, bi_cubic); \
1193                         break; \
1194                 case BC_RGBA_FLOAT: \
1195                         DO_LENS_##type(float, 4, 1.0, 0.0, bi_cubic); \
1196                         break; \
1197                 case BC_YUV888: \
1198                         DO_LENS_##type(unsigned char, 3, 0xff, 0x80, bi_cubic); \
1199                         break; \
1200                 case BC_YUVA8888: \
1201                         DO_LENS_##type(unsigned char, 4, 0xff, 0x80, bi_cubic); \
1202                         break; \
1203                 } \
1204                 break; \
1205         }
1206
1207 LensPackage::LensPackage()
1208  : LoadPackage()
1209 {
1210 }
1211
1212 LensUnit::LensUnit(LensEngine *engine, LensMain *plugin)
1213  : LoadClient(engine)
1214 {
1215         this->plugin = plugin;
1216 }
1217
1218 LensUnit::~LensUnit()
1219 {
1220 }
1221
1222 void LensUnit::process_spherical_stretch(LensPackage *pkg)
1223 {
1224         float *fov = plugin->config.fov;
1225         float aspect = plugin->config.aspect;
1226         int row1 = pkg->row1;
1227         int row2 = pkg->row2;
1228         double x_factor = aspect;
1229         double y_factor = 1.0 / aspect;
1230         if( x_factor < 1 ) x_factor = 1;
1231         if( y_factor < 1 ) y_factor = 1;
1232         int width = plugin->get_input()->get_w();
1233         int height = plugin->get_input()->get_h();
1234         double dim = MAX(width, height) * plugin->config.radius;
1235         double max_z = dim * sqrt(2.0) / 2;
1236         double center_x = width * plugin->config.center_x / 100.0;
1237         double center_y = height * plugin->config.center_y / 100.0;
1238         double r[FOV_CHANNELS];
1239
1240         r[0] = max_z / M_PI / (fov[0] / 2.0);
1241         r[1] = max_z / M_PI / (fov[1] / 2.0);
1242         r[2] = max_z / M_PI / (fov[2] / 2.0);
1243         r[3] = max_z / M_PI / (fov[3] / 2.0);
1244
1245 #define DO_LENS_SPHERICAL_STRETCH(type, components, max, chroma, interp) { \
1246         type **in_rows = (type**)plugin->get_temp()->get_rows(); \
1247         type **out_rows = (type**)plugin->get_input()->get_rows(); \
1248         type black[4] = { 0, chroma, chroma, 0 }; \
1249         INTERP_SETUP(in_rows, max, 0,0, width,height); \
1250  \
1251         for( int y=row1; y<row2; ++y ) { \
1252                 type *out_row = out_rows[y]; \
1253                 double y_diff = y - center_y; \
1254                 for( int x=0; x<width; ++x ) { \
1255                         double x_diff = (x - center_x); \
1256                         double z = sqrt(x_diff * x_diff + y_diff * y_diff); \
1257                         double a2 = x != center_x ? atan(y_diff / x_diff) : \
1258                                 y < center_y ? 3*M_PI/2 : M_PI/2; \
1259                         if( x_diff < 0.0 ) a2 += M_PI; \
1260                         for( int i=0; i<components; ++i ) { \
1261                                 double a1 = (z / (M_PI * r[i] / 2)) * (M_PI / 2); \
1262                                 double z_in = r[i] * sin(a1); \
1263                                 double x_in = z_in * cos(a2) * x_factor + center_x; \
1264                                 double y_in = z_in * sin(a2) * y_factor + center_y; \
1265                                 interp##_SETUP(type, components, x_in, y_in); \
1266                                 for( int j=0; j<i; ++j ) interp##_next(); \
1267                                 *out_row++ = interp##_interp(black[i], black[i]); \
1268                         } \
1269                 } \
1270         } \
1271  \
1272         type *out_pixel = out_rows[(int)center_y] + (int)center_x * components; \
1273         type *inp_pixel = in_rows[(int)center_y] + (int)center_x * components; \
1274         for( int i=0; i<components; ++i ) *out_pixel++ = *inp_pixel++; \
1275 }
1276
1277         DO_LENS(SPHERICAL_STRETCH);
1278 }
1279
1280 void LensUnit::process_spherical_shrink(LensPackage *pkg)
1281 {
1282
1283         float *fov = plugin->config.fov;
1284         float aspect = plugin->config.aspect;
1285         int row1 = pkg->row1;
1286         int row2 = pkg->row2;
1287         int width = plugin->get_input()->get_w();
1288         int height = plugin->get_input()->get_h();
1289         double x_factor = aspect;
1290         double y_factor = 1.0 / aspect;
1291         if( x_factor < 1 ) x_factor = 1;
1292         if( y_factor < 1 ) y_factor = 1;
1293         double dim = MAX(width, height) * plugin->config.radius;
1294         double max_z[FOV_CHANNELS];
1295         double center_x = width * plugin->config.center_x / 100.0;
1296         double center_y = height * plugin->config.center_y / 100.0;
1297         double r[FOV_CHANNELS];
1298
1299 //      max_z[0] = sqrt(SQR(width) + SQR(height)) / 2 / fov[0];
1300 //      max_z[1] = sqrt(SQR(width) + SQR(height)) / 2 / fov[1];
1301 //      max_z[2] = sqrt(SQR(width) + SQR(height)) / 2 / fov[2];
1302 //      max_z[3] = sqrt(SQR(width) + SQR(height)) / 2 / fov[3];
1303         max_z[0] = dim * sqrt(2.0) / 2 / fov[0];
1304         max_z[1] = dim * sqrt(2.0) / 2 / fov[1];
1305         max_z[2] = dim * sqrt(2.0) / 2 / fov[2];
1306         max_z[3] = dim * sqrt(2.0) / 2 / fov[3];
1307         r[0] = max_z[0] * 2 / M_PI;
1308         r[1] = max_z[1] * 2 / M_PI;
1309         r[2] = max_z[2] * 2 / M_PI;
1310         r[3] = max_z[3] * 2 / M_PI;
1311
1312 #define DO_LENS_SPHERICAL_SHRINK(type, components, max, chroma, interp) { \
1313         type **in_rows = (type**)plugin->get_temp()->get_rows(); \
1314         type **out_rows = (type**)plugin->get_input()->get_rows(); \
1315         type black[4] = { 0, chroma, chroma, 0 }; \
1316         INTERP_SETUP(in_rows, max, 0,0, width,height); \
1317  \
1318         for( int y=row1; y<row2; ++y ) { \
1319                 type *out_row = out_rows[y]; \
1320                 type *in_row = in_rows[y]; \
1321                 double y_diff = y - center_y; \
1322                 for( int x=0; x<width; ++x ) { \
1323                         double x_diff = x - center_x; \
1324                         if( !x_diff && !y_diff ) { \
1325                                 type *inp_pixel = in_row + x * components; \
1326                                 for( int c=0; c<components; ++c ) \
1327                                         *out_row++ = *inp_pixel++; \
1328                                 continue; \
1329                         } \
1330                         double z = sqrt(x_diff * x_diff + y_diff * y_diff); \
1331                         double a2 = atan(y_diff / x_diff); \
1332                         if( x_diff < 0.0 ) a2 += M_PI; \
1333                         for( int i=0; i<components; ++i ) { \
1334                                 if( z > r[i] ) { *out_row++ = black[i]; continue; } \
1335                                 double a1 = asin(z / r[i]); \
1336                                 double z_in = a1 * max_z[i] * 2 / M_PI; \
1337                                 float x_in = z_in * cos(a2) * x_factor + center_x; \
1338                                 float y_in = z_in * sin(a2) * y_factor + center_y; \
1339                                 interp##_SETUP(type, components, x_in, y_in); \
1340                                 for( int j=0; j<i; ++j ) interp##_next(); \
1341                                 *out_row++ = interp##_interp(black[i], black[i]); \
1342                         } \
1343                 } \
1344         } \
1345  \
1346         type *out_pixel = out_rows[(int)center_y] + (int)center_x * components; \
1347         type *inp_pixel = in_rows[(int)center_y] + (int)center_x * components; \
1348         for( int i=0; i<components; ++i ) *out_pixel++ = *inp_pixel++; \
1349 }
1350
1351         DO_LENS(SPHERICAL_SHRINK);
1352 }
1353
1354 void LensUnit::process_rectilinear_stretch(LensPackage *pkg)
1355 {
1356         float *fov = plugin->config.fov;
1357         float aspect = plugin->config.aspect;
1358         int row1 = pkg->row1;
1359         int row2 = pkg->row2;
1360         double x_factor = aspect;
1361         double y_factor = 1.0 / aspect;
1362         if( x_factor < 1 ) x_factor = 1;
1363         if( y_factor < 1 ) y_factor = 1;
1364         int width = plugin->get_input()->get_w();
1365         int height = plugin->get_input()->get_h();
1366 //      double dim = MAX(width, height) * plugin->config.radius;
1367 //      double max_z = dim * sqrt(2.0) / 2;
1368         double max_z = sqrt(SQR(width) + SQR(height)) / 2;
1369         double center_x = width * plugin->config.center_x / 100.0;
1370         double center_y = height * plugin->config.center_y / 100.0;
1371         double r[FOV_CHANNELS];
1372
1373         r[0] = max_z / M_PI / (fov[0] / 2.0);
1374         r[1] = max_z / M_PI / (fov[1] / 2.0);
1375         r[2] = max_z / M_PI / (fov[2] / 2.0);
1376         r[3] = max_z / M_PI / (fov[3] / 2.0);
1377
1378 #define DO_LENS_RECTILINEAR_STRETCH(type, components, max, chroma, interp) { \
1379         type **in_rows = (type**)plugin->get_temp()->get_rows(); \
1380         type **out_rows = (type**)plugin->get_input()->get_rows(); \
1381         type black[4] = { 0, chroma, chroma, 0 }; \
1382         INTERP_SETUP(in_rows, max, 0,0, width,height); \
1383  \
1384         for( int y=row1; y<row2; ++y ) { \
1385                 type *out_row = out_rows[y]; \
1386                 double y_diff = y - center_y; \
1387                 for( int x=0; x<width; ++x ) { \
1388                         double x_diff = (x - center_x); /* Compute magnitude / angle */ \
1389                         double z = sqrt(x_diff * x_diff + y_diff * y_diff); \
1390                         double angle = x != center_x ? atan(y_diff / x_diff) : \
1391                                 y < center_y ? 3*M_PI/2 : M_PI/2; \
1392                         if( x_diff < 0.0 ) angle += M_PI; \
1393                         for( int i=0; i<components; ++i ) { /* Compute new radius */ \
1394                                 double radius1 = (z / r[i]) * 2 * plugin->config.radius; \
1395                                 double z_in = r[i] * atan(radius1) / (M_PI / 2); \
1396                                 double x_in = z_in * cos(angle) * x_factor + center_x; \
1397                                 double y_in = z_in * sin(angle) * y_factor + center_y; \
1398                                 interp##_SETUP(type, components, x_in, y_in); \
1399                                 for( int j=0; j<i; ++j ) interp##_next(); \
1400                                 *out_row++ = interp##_interp(black[i], black[i]); \
1401                         } \
1402                 } \
1403         } \
1404  \
1405         type *out_pixel = out_rows[(int)center_y] + (int)center_x * components; \
1406         type *inp_pixel = in_rows[(int)center_y] + (int)center_x * components; \
1407         for( int i=0; i<components; ++i ) *out_pixel++ = *inp_pixel++; \
1408 }
1409
1410         DO_LENS(RECTILINEAR_STRETCH);
1411 }
1412
1413 void LensUnit::process_rectilinear_shrink(LensPackage *pkg)
1414 {
1415         float *fov = plugin->config.fov;
1416         float aspect = plugin->config.aspect;
1417         int row1 = pkg->row1;
1418         int row2 = pkg->row2;
1419         double x_factor = aspect;
1420         double y_factor = 1.0 / aspect;
1421         if( x_factor < 1 ) x_factor = 1;
1422         if( y_factor < 1 ) y_factor = 1;
1423         int width = plugin->get_input()->get_w();
1424         int height = plugin->get_input()->get_h();
1425         double max_z = MAX(width, height) / 2 * plugin->config.radius;
1426         double center_x = width * plugin->config.center_x / 100.0;
1427         double center_y = height * plugin->config.center_y / 100.0;
1428         double r[FOV_CHANNELS];
1429
1430         r[0] = max_z / fov[0];
1431         r[1] = max_z / fov[1];
1432         r[2] = max_z / fov[2];
1433         r[3] = max_z / fov[3];
1434
1435 #define DO_LENS_RECTILINEAR_SHRINK(type, components, max, chroma, interp) { \
1436         type **in_rows = (type**)plugin->get_temp()->get_rows(); \
1437         type **out_rows = (type**)plugin->get_input()->get_rows(); \
1438         type black[4] = { 0, chroma, chroma, 0 }; \
1439         INTERP_SETUP(in_rows, max, 0,0, width,height); \
1440  \
1441         for( int y=row1; y<row2; ++y ) { \
1442                 type *out_row = out_rows[y]; \
1443                 double y_diff = y - center_y; \
1444                 for( int x=0; x<width; ++x ) { \
1445                         double x_diff = (x - center_x); /* Compute magnitude/angle */ \
1446                         double z = sqrt(x_diff * x_diff + y_diff * y_diff); \
1447                         double angle = x != center_x ? atan(y_diff / x_diff) : \
1448                                 y < center_y ? 3*M_PI/2 : M_PI/2; \
1449                         if( x_diff < 0.0 ) angle += M_PI; \
1450                         for( int i=0; i<components; ++i ) { /* Compute new radius */ \
1451                                 double radius1 = z / r[i]; \
1452                                 double z_in = r[i] * tan(radius1) / (M_PI / 2); \
1453                                 double x_in = z_in * cos(angle) * x_factor + center_x; \
1454                                 double y_in = z_in * sin(angle) * y_factor + center_y; \
1455                                 interp##_SETUP(type, components, x_in, y_in); \
1456                                 for( int j=0; j<i; ++j ) interp##_next(); \
1457                                 *out_row++ = interp##_interp(black[i], black[i]); \
1458                         } \
1459                 } \
1460         } \
1461  \
1462         type *out_pixel = out_rows[(int)center_y] + (int)center_x * components; \
1463         type *inp_pixel = in_rows[(int)center_y] + (int)center_x * components; \
1464         for( int i=0; i<components; ++i ) *out_pixel++ = *inp_pixel++; \
1465 }
1466
1467         DO_LENS(RECTILINEAR_SHRINK);
1468 }
1469
1470 void LensUnit::process_package(LoadPackage *package)
1471 {
1472         LensPackage *pkg = (LensPackage*)package;
1473
1474         switch( plugin->config.mode ) {
1475         case LensConfig::SPHERICAL_STRETCH:
1476                 process_spherical_stretch(pkg);
1477                 break;
1478         case LensConfig::SPHERICAL_SHRINK:
1479                 process_spherical_shrink(pkg);
1480                 break;
1481         case LensConfig::RECTILINEAR_STRETCH:
1482                 process_rectilinear_stretch(pkg);
1483                 break;
1484         case LensConfig::RECTILINEAR_SHRINK:
1485                 process_rectilinear_shrink(pkg);
1486                 break;
1487         }
1488 }
1489
1490
1491 LensEngine::LensEngine(LensMain *plugin)
1492  : LoadServer(plugin->PluginClient::smp + 1, plugin->PluginClient::smp + 1)
1493 // : LoadServer(1, 1)
1494 {
1495         this->plugin = plugin;
1496 }
1497
1498 LensEngine::~LensEngine()
1499 {
1500 }
1501
1502 void LensEngine::init_packages()
1503 {
1504         int row1 = 0, row2 = 0, n = LoadServer::get_total_packages();
1505         for( int i=0; i<n; row1=row2 ) {
1506                 LensPackage *package = (LensPackage*)LoadServer::get_package(i);
1507                 row2 = plugin->get_input()->get_h() * ++i / n;
1508                 package->row1 = row1;  package->row2 = row2;
1509         }
1510 }
1511
1512 LoadClient* LensEngine::new_client()
1513 {
1514         return new LensUnit(this, plugin);
1515 }
1516
1517 LoadPackage* LensEngine::new_package()
1518 {
1519         return new LensPackage;
1520 }
1521
1522