cinelerra-5.0/plugins/perspective/perspective.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 "affine.h"
  23 #include "cursors.h"
  24 #include "language.h"
  25 #include "perspective.h"
  26
  27
  28
  29
  30
  31
  32
  33 REGISTER_PLUGIN(PerspectiveMain)
  34
  35
  36
  37 PerspectiveConfig::PerspectiveConfig()
  38 {
  39         x1 = 0;
  40         y1 = 0;
  41         x2 = 100;
  42         y2 = 0;
  43         x3 = 100;
  44         y3 = 100;
  45         x4 = 0;
  46         y4 = 100;
  47         mode = AffineEngine::PERSPECTIVE;
  48         window_w = 400;
  49         window_h = 450;
  50         current_point = 0;
  51         forward = 1;
  52 }
  53
  54 int PerspectiveConfig::equivalent(PerspectiveConfig &that)
  55 {
  56         return
  57                 EQUIV(x1, that.x1) &&
  58                 EQUIV(y1, that.y1) &&
  59                 EQUIV(x2, that.x2) &&
  60                 EQUIV(y2, that.y2) &&
  61                 EQUIV(x3, that.x3) &&
  62                 EQUIV(y3, that.y3) &&
  63                 EQUIV(x4, that.x4) &&
  64                 EQUIV(y4, that.y4) &&
  65                 mode == that.mode &&
  66                 forward == that.forward;
  67 }
  68
  69 void PerspectiveConfig::copy_from(PerspectiveConfig &that)
  70 {
  71         x1 = that.x1;
  72         y1 = that.y1;
  73         x2 = that.x2;
  74         y2 = that.y2;
  75         x3 = that.x3;
  76         y3 = that.y3;
  77         x4 = that.x4;
  78         y4 = that.y4;
  79         mode = that.mode;
  80         window_w = that.window_w;
  81         window_h = that.window_h;
  82         current_point = that.current_point;
  83         forward = that.forward;
  84 }
  85
  86 void PerspectiveConfig::interpolate(PerspectiveConfig &prev,
  87         PerspectiveConfig &next,
  88         int64_t prev_frame,
  89         int64_t next_frame,
  90         int64_t current_frame)
  91 {
  92         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
  93         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
  94         this->x1 = prev.x1 * prev_scale + next.x1 * next_scale;
  95         this->y1 = prev.y1 * prev_scale + next.y1 * next_scale;
  96         this->x2 = prev.x2 * prev_scale + next.x2 * next_scale;
  97         this->y2 = prev.y2 * prev_scale + next.y2 * next_scale;
  98         this->x3 = prev.x3 * prev_scale + next.x3 * next_scale;
  99         this->y3 = prev.y3 * prev_scale + next.y3 * next_scale;
 100         this->x4 = prev.x4 * prev_scale + next.x4 * next_scale;
 101         this->y4 = prev.y4 * prev_scale + next.y4 * next_scale;
 102         mode = prev.mode;
 103         forward = prev.forward;
 104 }
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118 PerspectiveWindow::PerspectiveWindow(PerspectiveMain *plugin)
 119  : PluginClientWindow(plugin,
 120         plugin->config.window_w,
 121         plugin->config.window_h,
 122         plugin->config.window_w,
 123         plugin->config.window_h,
 124         0)
 125 {
 126 //printf("PerspectiveWindow::PerspectiveWindow 1 %d %d\n", plugin->config.window_w, plugin->config.window_h);
 127         this->plugin = plugin;
 128 }
 129
 130 PerspectiveWindow::~PerspectiveWindow()
 131 {
 132 }
 133
 134 void PerspectiveWindow::create_objects()
 135 {
 136         int x = 10, y = 10;
 137
 138         add_subwindow(canvas = new PerspectiveCanvas(plugin,
 139                 x,
 140                 y,
 141                 get_w() - 20,
 142                 get_h() - 140));
 143         canvas->set_cursor(CROSS_CURSOR, 0, 0);
 144         y += canvas->get_h() + 10;
 145         add_subwindow(new BC_Title(x, y, _("Current X:")));
 146         x += 80;
 147         this->x = new PerspectiveCoord(this,
 148                 plugin,
 149                 x,
 150                 y,
 151                 plugin->get_current_x(),
 152                 1);
 153         this->x->create_objects();
 154         x += 140;
 155         add_subwindow(new BC_Title(x, y, _("Y:")));
 156         x += 20;
 157         this->y = new PerspectiveCoord(this,
 158                 plugin,
 159                 x,
 160                 y,
 161                 plugin->get_current_y(),
 162                 0);
 163         this->y->create_objects();
 164         y += 30;
 165         x = 10;
 166         add_subwindow(new PerspectiveReset(plugin, x, y));
 167         x += 100;
 168         add_subwindow(mode_perspective = new PerspectiveMode(plugin,
 169                 x,
 170                 y,
 171                 AffineEngine::PERSPECTIVE,
 172                 _("Perspective")));
 173         x += 120;
 174         add_subwindow(mode_sheer = new PerspectiveMode(plugin,
 175                 x,
 176                 y,
 177                 AffineEngine::SHEER,
 178                 _("Sheer")));
 179         x = 110;
 180         y += 30;
 181         add_subwindow(mode_stretch = new PerspectiveMode(plugin,
 182                 x,
 183                 y,
 184                 AffineEngine::STRETCH,
 185                 _("Stretch")));
 186         update_canvas();
 187         y += 30;
 188         x = 10;
 189         add_subwindow(new BC_Title(x, y, _("Perspective direction:")));
 190         x += 170;
 191         add_subwindow(forward = new PerspectiveDirection(plugin,
 192                 x,
 193                 y,
 194                 1,
 195                 _("Forward")));
 196         x += 100;
 197         add_subwindow(reverse = new PerspectiveDirection(plugin,
 198                 x,
 199                 y,
 200                 0,
 201                 _("Reverse")));
 202
 203         show_window();
 204 }
 205
 206
 207
 208 int PerspectiveWindow::resize_event(int w, int h)
 209 {
 210         return 1;
 211 }
 212
 213 void PerspectiveWindow::update_canvas()
 214 {
 215         canvas->clear_box(0, 0, canvas->get_w(), canvas->get_h());
 216         int x1, y1, x2, y2, x3, y3, x4, y4;
 217         calculate_canvas_coords(x1, y1, x2, y2, x3, y3, x4, y4);
 218
 219 // printf("PerspectiveWindow::update_canvas %d,%d %d,%d %d,%d %d,%d\n",
 220 // x1,
 221 // y1,
 222 // x2,
 223 // y2,
 224 // x3,
 225 // y3,
 226 // x4,
 227 // y4);
 228 // Draw divisions
 229         canvas->set_color(WHITE);
 230
 231 #define DIVISIONS 10
 232         for(int i = 0; i <= DIVISIONS; i++)
 233         {
 234 // latitude
 235                 canvas->draw_line(
 236                         x1 + (x4 - x1) * i / DIVISIONS,
 237                         y1 + (y4 - y1) * i / DIVISIONS,
 238                         x2 + (x3 - x2) * i / DIVISIONS,
 239                         y2 + (y3 - y2) * i / DIVISIONS);
 240 // longitude
 241                 canvas->draw_line(
 242                         x1 + (x2 - x1) * i / DIVISIONS,
 243                         y1 + (y2 - y1) * i / DIVISIONS,
 244                         x4 + (x3 - x4) * i / DIVISIONS,
 245                         y4 + (y3 - y4) * i / DIVISIONS);
 246         }
 247
 248 // Corners
 249 #define RADIUS 5
 250         if(plugin->config.current_point == 0)
 251                 canvas->draw_disc(x1 - RADIUS, y1 - RADIUS, RADIUS * 2, RADIUS * 2);
 252         else
 253                 canvas->draw_circle(x1 - RADIUS, y1 - RADIUS, RADIUS * 2, RADIUS * 2);
 254
 255         if(plugin->config.current_point == 1)
 256                 canvas->draw_disc(x2 - RADIUS, y2 - RADIUS, RADIUS * 2, RADIUS * 2);
 257         else
 258                 canvas->draw_circle(x2 - RADIUS, y2 - RADIUS, RADIUS * 2, RADIUS * 2);
 259
 260         if(plugin->config.current_point == 2)
 261                 canvas->draw_disc(x3 - RADIUS, y3 - RADIUS, RADIUS * 2, RADIUS * 2);
 262         else
 263                 canvas->draw_circle(x3 - RADIUS, y3 - RADIUS, RADIUS * 2, RADIUS * 2);
 264
 265         if(plugin->config.current_point == 3)
 266                 canvas->draw_disc(x4 - RADIUS, y4 - RADIUS, RADIUS * 2, RADIUS * 2);
 267         else
 268                 canvas->draw_circle(x4 - RADIUS, y4 - RADIUS, RADIUS * 2, RADIUS * 2);
 269
 270         canvas->flash();
 271 }
 272
 273 void PerspectiveWindow::update_mode()
 274 {
 275         mode_perspective->update(plugin->config.mode == AffineEngine::PERSPECTIVE);
 276         mode_sheer->update(plugin->config.mode == AffineEngine::SHEER);
 277         mode_stretch->update(plugin->config.mode == AffineEngine::STRETCH);
 278         forward->update(plugin->config.forward);
 279         reverse->update(!plugin->config.forward);
 280 }
 281
 282 void PerspectiveWindow::update_coord()
 283 {
 284         x->update(plugin->get_current_x());
 285         y->update(plugin->get_current_y());
 286 }
 287
 288 void PerspectiveWindow::calculate_canvas_coords(int &x1,
 289         int &y1,
 290         int &x2,
 291         int &y2,
 292         int &x3,
 293         int &y3,
 294         int &x4,
 295         int &y4)
 296 {
 297         int w = canvas->get_w() - 1;
 298         int h = canvas->get_h() - 1;
 299         if(plugin->config.mode == AffineEngine::PERSPECTIVE ||
 300                 plugin->config.mode == AffineEngine::STRETCH)
 301         {
 302                 x1 = (int)(plugin->config.x1 * w / 100);
 303                 y1 = (int)(plugin->config.y1 * h / 100);
 304                 x2 = (int)(plugin->config.x2 * w / 100);
 305                 y2 = (int)(plugin->config.y2 * h / 100);
 306                 x3 = (int)(plugin->config.x3 * w / 100);
 307                 y3 = (int)(plugin->config.y3 * h / 100);
 308                 x4 = (int)(plugin->config.x4 * w / 100);
 309                 y4 = (int)(plugin->config.y4 * h / 100);
 310         }
 311         else
 312         {
 313                 x1 = (int)(plugin->config.x1 * w) / 100;
 314                 y1 = 0;
 315                 x2 = x1 + w;
 316                 y2 = 0;
 317                 x4 = (int)(plugin->config.x4 * w) / 100;
 318                 y4 = h;
 319                 x3 = x4 + w;
 320                 y3 = h;
 321         }
 322 }
 323
 324
 325
 326
 327 PerspectiveCanvas::PerspectiveCanvas(PerspectiveMain *plugin,
 328         int x,
 329         int y,
 330         int w,
 331         int h)
 332  : BC_SubWindow(x, y, w, h, BLACK)
 333 {
 334         this->plugin = plugin;
 335         state = PerspectiveCanvas::NONE;
 336 }
 337
 338
 339
 340
 341 int PerspectiveCanvas::button_press_event()
 342 {
 343         if(is_event_win() && cursor_inside())
 344         {
 345 // Set current point
 346                 int x1, y1, x2, y2, x3, y3, x4, y4;
 347                 int cursor_x = get_cursor_x();
 348                 int cursor_y = get_cursor_y();
 349                 ((PerspectiveWindow*)plugin->thread->window)->calculate_canvas_coords(x1, y1, x2, y2, x3, y3, x4, y4);
 350
 351                 float distance1 = DISTANCE(cursor_x, cursor_y, x1, y1);
 352                 float distance2 = DISTANCE(cursor_x, cursor_y, x2, y2);
 353                 float distance3 = DISTANCE(cursor_x, cursor_y, x3, y3);
 354                 float distance4 = DISTANCE(cursor_x, cursor_y, x4, y4);
 355 // printf("PerspectiveCanvas::button_press_event %f %d %d %d %d\n",
 356 // distance3,
 357 // cursor_x,
 358 // cursor_y,
 359 // x3,
 360 // y3);
 361                 float min = distance1;
 362                 plugin->config.current_point = 0;
 363                 if(distance2 < min)
 364                 {
 365                         min = distance2;
 366                         plugin->config.current_point = 1;
 367                 }
 368                 if(distance3 < min)
 369                 {
 370                         min = distance3;
 371                         plugin->config.current_point = 2;
 372                 }
 373                 if(distance4 < min)
 374                 {
 375                         min = distance4;
 376                         plugin->config.current_point = 3;
 377                 }
 378
 379                 if(plugin->config.mode == AffineEngine::SHEER)
 380                 {
 381                         if(plugin->config.current_point == 1)
 382                                 plugin->config.current_point = 0;
 383                         else
 384                         if(plugin->config.current_point == 2)
 385                                 plugin->config.current_point = 3;
 386                 }
 387                 start_cursor_x = cursor_x;
 388                 start_cursor_y = cursor_y;
 389
 390                 if(alt_down() || shift_down())
 391                 {
 392                         if(alt_down())
 393                                 state = PerspectiveCanvas::DRAG_FULL;
 394                         else
 395                                 state = PerspectiveCanvas::ZOOM;
 396
 397 // Get starting positions
 398                         start_x1 = plugin->config.x1;
 399                         start_y1 = plugin->config.y1;
 400                         start_x2 = plugin->config.x2;
 401                         start_y2 = plugin->config.y2;
 402                         start_x3 = plugin->config.x3;
 403                         start_y3 = plugin->config.y3;
 404                         start_x4 = plugin->config.x4;
 405                         start_y4 = plugin->config.y4;
 406                 }
 407                 else
 408                 {
 409                         state = PerspectiveCanvas::DRAG;
 410
 411 // Get starting positions
 412                         start_x1 = plugin->get_current_x();
 413                         start_y1 = plugin->get_current_y();
 414                 }
 415                 ((PerspectiveWindow*)plugin->thread->window)->update_coord();
 416                 ((PerspectiveWindow*)plugin->thread->window)->update_canvas();
 417                 return 1;
 418         }
 419
 420         return 0;
 421 }
 422
 423 int PerspectiveCanvas::button_release_event()
 424 {
 425         if(state != PerspectiveCanvas::NONE)
 426         {
 427                 state = PerspectiveCanvas::NONE;
 428                 return 1;
 429         }
 430         return 0;
 431 }
 432
 433 int PerspectiveCanvas::cursor_motion_event()
 434 {
 435         if(state != PerspectiveCanvas::NONE)
 436         {
 437                 int w = get_w() - 1;
 438                 int h = get_h() - 1;
 439                 if(state == PerspectiveCanvas::DRAG)
 440                 {
 441                         plugin->set_current_x((float)(get_cursor_x() - start_cursor_x) / w * 100 + start_x1);
 442                         plugin->set_current_y((float)(get_cursor_y() - start_cursor_y) / h * 100 + start_y1);
 443                 }
 444                 else
 445                 if(state == PerspectiveCanvas::DRAG_FULL)
 446                 {
 447                         plugin->config.x1 = ((float)(get_cursor_x() - start_cursor_x) / w * 100 + start_x1);
 448                         plugin->config.y1 = ((float)(get_cursor_y() - start_cursor_y) / h * 100 + start_y1);
 449                         plugin->config.x2 = ((float)(get_cursor_x() - start_cursor_x) / w * 100 + start_x2);
 450                         plugin->config.y2 = ((float)(get_cursor_y() - start_cursor_y) / h * 100 + start_y2);
 451                         plugin->config.x3 = ((float)(get_cursor_x() - start_cursor_x) / w * 100 + start_x3);
 452                         plugin->config.y3 = ((float)(get_cursor_y() - start_cursor_y) / h * 100 + start_y3);
 453                         plugin->config.x4 = ((float)(get_cursor_x() - start_cursor_x) / w * 100 + start_x4);
 454                         plugin->config.y4 = ((float)(get_cursor_y() - start_cursor_y) / h * 100 + start_y4);
 455                 }
 456                 else
 457                 if(state == PerspectiveCanvas::ZOOM)
 458                 {
 459                         float center_x = (start_x1 +
 460                                 start_x2 +
 461                                 start_x3 +
 462                                 start_x4) / 4;
 463                         float center_y = (start_y1 +
 464                                 start_y2 +
 465                                 start_y3 +
 466                                 start_y4) / 4;
 467                         float zoom = (float)(get_cursor_y() - start_cursor_y + 640) / 640;
 468                         plugin->config.x1 = center_x + (start_x1 - center_x) * zoom;
 469                         plugin->config.y1 = center_y + (start_y1 - center_y) * zoom;
 470                         plugin->config.x2 = center_x + (start_x2 - center_x) * zoom;
 471                         plugin->config.y2 = center_y + (start_y2 - center_y) * zoom;
 472                         plugin->config.x3 = center_x + (start_x3 - center_x) * zoom;
 473                         plugin->config.y3 = center_y + (start_y3 - center_y) * zoom;
 474                         plugin->config.x4 = center_x + (start_x4 - center_x) * zoom;
 475                         plugin->config.y4 = center_y + (start_y4 - center_y) * zoom;
 476                 }
 477                 ((PerspectiveWindow*)plugin->thread->window)->update_canvas();
 478                 ((PerspectiveWindow*)plugin->thread->window)->update_coord();
 479                 plugin->send_configure_change();
 480                 return 1;
 481         }
 482
 483         return 0;
 484 }
 485
 486
 487
 488
 489
 490
 491 PerspectiveCoord::PerspectiveCoord(PerspectiveWindow *gui,
 492         PerspectiveMain *plugin,
 493         int x,
 494         int y,
 495         float value,
 496         int is_x)
 497  : BC_TumbleTextBox(gui, value, (float)-100, (float)200, x, y, 100)
 498 {
 499         this->plugin = plugin;
 500         this->is_x = is_x;
 501 }
 502
 503 int PerspectiveCoord::handle_event()
 504 {
 505         if(is_x)
 506                 plugin->set_current_x(atof(get_text()));
 507         else
 508                 plugin->set_current_y(atof(get_text()));
 509         ((PerspectiveWindow*)plugin->thread->window)->update_canvas();
 510         plugin->send_configure_change();
 511         return 1;
 512 }
 513
 514
 515
 516
 517
 518
 519
 520
 521 PerspectiveReset::PerspectiveReset(PerspectiveMain *plugin,
 522         int x,
 523         int y)
 524  : BC_GenericButton(x, y, _("Reset"))
 525 {
 526         this->plugin = plugin;
 527 }
 528 int PerspectiveReset::handle_event()
 529 {
 530         plugin->config.x1 = 0;
 531         plugin->config.y1 = 0;
 532         plugin->config.x2 = 100;
 533         plugin->config.y2 = 0;
 534         plugin->config.x3 = 100;
 535         plugin->config.y3 = 100;
 536         plugin->config.x4 = 0;
 537         plugin->config.y4 = 100;
 538         ((PerspectiveWindow*)plugin->thread->window)->update_canvas();
 539         ((PerspectiveWindow*)plugin->thread->window)->update_coord();
 540         plugin->send_configure_change();
 541         return 1;
 542 }
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554 PerspectiveMode::PerspectiveMode(PerspectiveMain *plugin,
 555         int x,
 556         int y,
 557         int value,
 558         char *text)
 559  : BC_Radial(x, y, plugin->config.mode == value, text)
 560 {
 561         this->plugin = plugin;
 562         this->value = value;
 563 }
 564 int PerspectiveMode::handle_event()
 565 {
 566         plugin->config.mode = value;
 567         ((PerspectiveWindow*)plugin->thread->window)->update_mode();
 568         ((PerspectiveWindow*)plugin->thread->window)->update_canvas();
 569         plugin->send_configure_change();
 570         return 1;
 571 }
 572
 573
 574
 575
 576 PerspectiveDirection::PerspectiveDirection(PerspectiveMain *plugin,
 577         int x,
 578         int y,
 579         int value,
 580         char *text)
 581  : BC_Radial(x, y, plugin->config.forward == value, text)
 582 {
 583         this->plugin = plugin;
 584         this->value = value;
 585 }
 586 int PerspectiveDirection::handle_event()
 587 {
 588         plugin->config.forward = value;
 589         ((PerspectiveWindow*)plugin->thread->window)->update_mode();
 590         plugin->send_configure_change();
 591         return 1;
 592 }
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605 PerspectiveMain::PerspectiveMain(PluginServer *server)
 606  : PluginVClient(server)
 607 {
 608
 609         engine = 0;
 610         temp = 0;
 611 }
 612
 613 PerspectiveMain::~PerspectiveMain()
 614 {
 615
 616         if(engine) delete engine;
 617         if(temp) delete temp;
 618 }
 619
 620 const char* PerspectiveMain::plugin_title() { return N_("Perspective"); }
 621 int PerspectiveMain::is_realtime() { return 1; }
 622
 623
 624
 625 NEW_WINDOW_MACRO(PerspectiveMain, PerspectiveWindow)
 626
 627 LOAD_CONFIGURATION_MACRO(PerspectiveMain, PerspectiveConfig)
 628
 629
 630
 631 void PerspectiveMain::update_gui()
 632 {
 633         if(thread)
 634         {
 635 //printf("PerspectiveMain::update_gui 1\n");
 636                 thread->window->lock_window();
 637 //printf("PerspectiveMain::update_gui 2\n");
 638                 load_configuration();
 639                 ((PerspectiveWindow*)thread->window)->update_coord();
 640                 ((PerspectiveWindow*)thread->window)->update_mode();
 641                 ((PerspectiveWindow*)thread->window)->update_canvas();
 642                 thread->window->unlock_window();
 643 //printf("PerspectiveMain::update_gui 3\n");
 644         }
 645 }
 646
 647
 648
 649
 650
 651 void PerspectiveMain::save_data(KeyFrame *keyframe)
 652 {
 653         FileXML output;
 654
 655 // cause data to be stored directly in text
 656         output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
 657         output.tag.set_title("PERSPECTIVE");
 658
 659         output.tag.set_property("X1", config.x1);
 660         output.tag.set_property("X2", config.x2);
 661         output.tag.set_property("X3", config.x3);
 662         output.tag.set_property("X4", config.x4);
 663         output.tag.set_property("Y1", config.y1);
 664         output.tag.set_property("Y2", config.y2);
 665         output.tag.set_property("Y3", config.y3);
 666         output.tag.set_property("Y4", config.y4);
 667
 668         output.tag.set_property("MODE", config.mode);
 669         output.tag.set_property("FORWARD", config.forward);
 670         output.tag.set_property("WINDOW_W", config.window_w);
 671         output.tag.set_property("WINDOW_H", config.window_h);
 672         output.append_tag();
 673         output.terminate_string();
 674 }
 675
 676 void PerspectiveMain::read_data(KeyFrame *keyframe)
 677 {
 678         FileXML input;
 679
 680         input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
 681
 682         int result = 0;
 683
 684         while(!result)
 685         {
 686                 result = input.read_tag();
 687
 688                 if(!result)
 689                 {
 690                         if(input.tag.title_is("PERSPECTIVE"))
 691                         {
 692                                 config.x1 = input.tag.get_property("X1", config.x1);
 693                                 config.x2 = input.tag.get_property("X2", config.x2);
 694                                 config.x3 = input.tag.get_property("X3", config.x3);
 695                                 config.x4 = input.tag.get_property("X4", config.x4);
 696                                 config.y1 = input.tag.get_property("Y1", config.y1);
 697                                 config.y2 = input.tag.get_property("Y2", config.y2);
 698                                 config.y3 = input.tag.get_property("Y3", config.y3);
 699                                 config.y4 = input.tag.get_property("Y4", config.y4);
 700
 701                                 config.mode = input.tag.get_property("MODE", config.mode);
 702                                 config.forward = input.tag.get_property("FORWARD", config.forward);
 703                                 config.window_w = input.tag.get_property("WINDOW_W", config.window_w);
 704                                 config.window_h = input.tag.get_property("WINDOW_H", config.window_h);
 705                         }
 706                 }
 707         }
 708 }
 709
 710 float PerspectiveMain::get_current_x()
 711 {
 712         switch(config.current_point)
 713         {
 714                 case 0:
 715                         return config.x1;
 716                         break;
 717                 case 1:
 718                         return config.x2;
 719                         break;
 720                 case 2:
 721                         return config.x3;
 722                         break;
 723                 case 3:
 724                         return config.x4;
 725                         break;
 726         }
 727         return 0;
 728 }
 729
 730 float PerspectiveMain::get_current_y()
 731 {
 732         switch(config.current_point)
 733         {
 734                 case 0:
 735                         return config.y1;
 736                         break;
 737                 case 1:
 738                         return config.y2;
 739                         break;
 740                 case 2:
 741                         return config.y3;
 742                         break;
 743                 case 3:
 744                         return config.y4;
 745                         break;
 746         }
 747         return 0;
 748 }
 749
 750 void PerspectiveMain::set_current_x(float value)
 751 {
 752         switch(config.current_point)
 753         {
 754                 case 0:
 755                         config.x1 = value;
 756                         break;
 757                 case 1:
 758                         config.x2 = value;
 759                         break;
 760                 case 2:
 761                         config.x3 = value;
 762                         break;
 763                 case 3:
 764                         config.x4 = value;
 765                         break;
 766         }
 767 }
 768
 769 void PerspectiveMain::set_current_y(float value)
 770 {
 771         switch(config.current_point)
 772         {
 773                 case 0:
 774                         config.y1 = value;
 775                         break;
 776                 case 1:
 777                         config.y2 = value;
 778                         break;
 779                 case 2:
 780                         config.y3 = value;
 781                         break;
 782                 case 3:
 783                         config.y4 = value;
 784                         break;
 785         }
 786 }
 787
 788
 789
 790 int PerspectiveMain::process_buffer(VFrame *frame,
 791         int64_t start_position,
 792         double frame_rate)
 793 {
 794         /*int need_reconfigure =*/ load_configuration();
 795
 796 // Do nothing
 797         if( EQUIV(config.x1, 0)   && EQUIV(config.y1, 0) &&
 798                 EQUIV(config.x2, 100) && EQUIV(config.y2, 0) &&
 799                 EQUIV(config.x3, 100) && EQUIV(config.y3, 100) &&
 800                 EQUIV(config.x4, 0)   && EQUIV(config.y4, 100))
 801         {
 802                 read_frame(frame,
 803                         0,
 804                         start_position,
 805                         frame_rate,
 806                         get_use_opengl());
 807                 return 1;
 808         }
 809
 810 // Opengl does some funny business with stretching.
 811         int use_opengl = get_use_opengl() &&
 812                 (config.mode == AffineEngine::PERSPECTIVE ||
 813                 config.mode == AffineEngine::SHEER);
 814         read_frame(frame,
 815                 0,
 816                 start_position,
 817                 frame_rate,
 818                 use_opengl);
 819
 820         if(!engine) engine = new AffineEngine(get_project_smp() + 1,
 821                 get_project_smp() + 1);
 822
 823         if(use_opengl)
 824                 return run_opengl();
 825
 826
 827
 828         this->input = frame;
 829         this->output = frame;
 830
 831         int w = frame->get_w();
 832         int h = frame->get_h();
 833         int color_model = frame->get_color_model();
 834
 835         if(temp &&
 836                 config.mode == AffineEngine::STRETCH &&
 837                 (temp->get_w() != w * AFFINE_OVERSAMPLE ||
 838                         temp->get_h() != h * AFFINE_OVERSAMPLE))
 839         {
 840                 delete temp;
 841                 temp = 0;
 842         }
 843         else
 844         if(temp &&
 845                 (config.mode == AffineEngine::PERSPECTIVE ||
 846                 config.mode == AffineEngine::SHEER) &&
 847                 (temp->get_w() != w ||
 848                         temp->get_h() != h))
 849         {
 850                 delete temp;
 851                 temp = 0;
 852         }
 853
 854         if(config.mode == AffineEngine::STRETCH)
 855         {
 856                 if(!temp)
 857                 {
 858                         temp = new VFrame(0,
 859                                         -1,
 860                                         w * AFFINE_OVERSAMPLE,
 861                                         h * AFFINE_OVERSAMPLE,
 862                                         color_model,
 863                                         -1);
 864                 }
 865                 temp->clear_frame();
 866         }
 867
 868         if(config.mode == AffineEngine::PERSPECTIVE ||
 869                 config.mode == AffineEngine::SHEER)
 870         {
 871                 if(frame->get_rows()[0] == frame->get_rows()[0])
 872                 {
 873                         if(!temp)
 874                         {
 875                                 temp = new VFrame(0,
 876                                         -1,
 877                                         w,
 878                                         h,
 879                                         color_model,
 880                                         -1);
 881                         }
 882                         temp->copy_from(input);
 883                         input = temp;
 884                 }
 885                 output->clear_frame();
 886         }
 887
 888
 889         engine->process(output,
 890                 input,
 891                 temp,
 892                 config.mode,
 893                 config.x1,
 894                 config.y1,
 895                 config.x2,
 896                 config.y2,
 897                 config.x3,
 898                 config.y3,
 899                 config.x4,
 900                 config.y4,
 901                 config.forward);
 902
 903
 904
 905
 906 // Resample
 907
 908         if(config.mode == AffineEngine::STRETCH)
 909         {
 910 #define RESAMPLE(type, components, chroma_offset) \
 911 { \
 912         for(int i = 0; i < h; i++) \
 913         { \
 914                 type *out_row = (type*)output->get_rows()[i]; \
 915                 type *in_row1 = (type*)temp->get_rows()[i * AFFINE_OVERSAMPLE]; \
 916                 type *in_row2 = (type*)temp->get_rows()[i * AFFINE_OVERSAMPLE + 1]; \
 917                 for(int j = 0; j < w; j++) \
 918                 { \
 919                         out_row[0] = (in_row1[0] +  \
 920                                         in_row1[components] +  \
 921                                         in_row2[0] +  \
 922                                         in_row2[components]) /  \
 923                                 AFFINE_OVERSAMPLE /  \
 924                                 AFFINE_OVERSAMPLE; \
 925                         out_row[1] = ((in_row1[1] +  \
 926                                                 in_row1[components + 1] +  \
 927                                                 in_row2[1] +  \
 928                                                 in_row2[components + 1]) -  \
 929                                         chroma_offset *  \
 930                                         AFFINE_OVERSAMPLE *  \
 931                                         AFFINE_OVERSAMPLE) /  \
 932                                 AFFINE_OVERSAMPLE /  \
 933                                 AFFINE_OVERSAMPLE + \
 934                                 chroma_offset; \
 935                         out_row[2] = ((in_row1[2] +  \
 936                                                 in_row1[components + 2] +  \
 937                                                 in_row2[2] +  \
 938                                                 in_row2[components + 2]) -  \
 939                                         chroma_offset *  \
 940                                         AFFINE_OVERSAMPLE *  \
 941                                         AFFINE_OVERSAMPLE) /  \
 942                                 AFFINE_OVERSAMPLE /  \
 943                                 AFFINE_OVERSAMPLE + \
 944                                 chroma_offset; \
 945                         if(components == 4) \
 946                         { \
 947                                 out_row[3] = (in_row1[3] +  \
 948                                                 in_row1[components + 3] +  \
 949                                                 in_row2[3] +  \
 950                                                 in_row2[components + 3]) /  \
 951                                         AFFINE_OVERSAMPLE /  \
 952                                         AFFINE_OVERSAMPLE; \
 953                         } \
 954                         out_row += components; \
 955                         in_row1 += components * AFFINE_OVERSAMPLE; \
 956                         in_row2 += components * AFFINE_OVERSAMPLE; \
 957                 } \
 958         } \
 959 }
 960
 961                 switch(frame->get_color_model())
 962                 {
 963                         case BC_RGB_FLOAT:
 964                                 RESAMPLE(float, 3, 0)
 965                                 break;
 966                         case BC_RGB888:
 967                                 RESAMPLE(unsigned char, 3, 0)
 968                                 break;
 969                         case BC_RGBA_FLOAT:
 970                                 RESAMPLE(float, 4, 0)
 971                                 break;
 972                         case BC_RGBA8888:
 973                                 RESAMPLE(unsigned char, 4, 0)
 974                                 break;
 975                         case BC_YUV888:
 976                                 RESAMPLE(unsigned char, 3, 0x80)
 977                                 break;
 978                         case BC_YUVA8888:
 979                                 RESAMPLE(unsigned char, 4, 0x80)
 980                                 break;
 981                         case BC_RGB161616:
 982                                 RESAMPLE(uint16_t, 3, 0)
 983                                 break;
 984                         case BC_RGBA16161616:
 985                                 RESAMPLE(uint16_t, 4, 0)
 986                                 break;
 987                         case BC_YUV161616:
 988                                 RESAMPLE(uint16_t, 3, 0x8000)
 989                                 break;
 990                         case BC_YUVA16161616:
 991                                 RESAMPLE(uint16_t, 4, 0x8000)
 992                                 break;
 993                 }
 994         }
 995
 996         return 1;
 997 }
 998
 999
1000 int PerspectiveMain::handle_opengl()
1001 {
1002 #ifdef HAVE_GL
1003         engine->set_opengl(1);
1004         engine->process(get_output(),
1005                 get_output(),
1006                 get_output(),
1007                 config.mode,
1008                 config.x1,
1009                 config.y1,
1010                 config.x2,
1011                 config.y2,
1012                 config.x3,
1013                 config.y3,
1014                 config.x4,
1015                 config.y4,
1016                 config.forward);
1017         engine->set_opengl(0);
1018         return 0;
1019 #endif
1020 }
1021
1022
1023
1024
1025
1026