cinelerra-5.1/cinelerra/playtransport.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 "edl.h"
  23 #include "keys.h"
  24 #include "language.h"
  25 #include "localsession.h"
  26 #include "mwindow.h"
  27 #include "mwindowgui.h"
  28 #include "playbackengine.h"
  29 #include "playtransport.h"
  30 #include "preferences.h"
  31 #include "theme.h"
  32 #include "transportque.h"
  33 #include "vframe.h"
  34
  35
  36
  37 PlayTransport::PlayTransport(MWindow *mwindow,
  38         BC_WindowBase *subwindow,
  39         int x,
  40         int y)
  41 {
  42         this->subwindow = subwindow;
  43         this->mwindow = mwindow;
  44         this->x = x;
  45         this->y = y;
  46         this->engine = 0;
  47         this->status = 0;
  48         this->using_inout = 0;
  49 }
  50
  51
  52 PlayTransport::~PlayTransport()
  53 {
  54         delete forward_play;
  55         delete frame_forward_play;
  56         delete reverse_play;
  57         delete frame_reverse_play;
  58         delete fast_reverse;
  59         delete fast_play;
  60         delete rewind_button;
  61         delete stop_button;
  62         delete end_button;
  63 }
  64
  65 void PlayTransport::set_engine(PlaybackEngine *engine)
  66 {
  67         this->engine = engine;
  68 }
  69
  70 int PlayTransport::get_transport_width(MWindow *mwindow)
  71 {
  72         return mwindow->theme->get_image_set("stop")[0]->get_w() * 7 +
  73                 mwindow->theme->get_image_set("rewind")[0]->get_w() * 2;
  74 }
  75
  76 void PlayTransport::create_objects()
  77 {
  78         int x = this->x, y = this->y;
  79         subwindow->add_subwindow(rewind_button = new RewindButton(mwindow, this, x, y));
  80         x += rewind_button->get_w();
  81         subwindow->add_subwindow(fast_reverse = new FastReverseButton(mwindow, this, x, y));
  82         x += fast_reverse->get_w();
  83         subwindow->add_subwindow(reverse_play = new ReverseButton(mwindow, this, x, y));
  84         x += reverse_play->get_w();
  85         subwindow->add_subwindow(frame_reverse_play = new FrameReverseButton(mwindow, this, x, y));
  86         x += frame_reverse_play->get_w();
  87         subwindow->add_subwindow(stop_button = new StopButton(mwindow, this, x, y));
  88         x += stop_button->get_w();
  89         subwindow->add_subwindow(frame_forward_play = new FramePlayButton(mwindow, this, x, y));
  90         x += frame_forward_play->get_w();
  91         subwindow->add_subwindow(forward_play = new PlayButton(mwindow, this, x, y));
  92         x += forward_play->get_w();
  93         subwindow->add_subwindow(fast_play = new FastPlayButton(mwindow, this, x, y));
  94         x += fast_play->get_w();
  95         subwindow->add_subwindow(end_button = new EndButton(mwindow, this, x, y));
  96         x += end_button->get_w();
  97
  98         reverse = 0;
  99         speed = 0;
 100
 101 }
 102
 103 void PlayTransport::reposition_buttons(int x, int y)
 104 {
 105         this->x = x;
 106         this->y = y;
 107         rewind_button->reposition_window(x, y);
 108         x += rewind_button->get_w();
 109         fast_reverse->reposition_window(x, y);
 110         x += fast_reverse->get_w();
 111         reverse_play->reposition_window(x, y);
 112         x += reverse_play->get_w();
 113         frame_reverse_play->reposition_window(x, y);
 114         x += frame_reverse_play->get_w();
 115         stop_button->reposition_window(x, y);
 116         x += stop_button->get_w();
 117         frame_forward_play->reposition_window(x, y);
 118         x += frame_forward_play->get_w();
 119         forward_play->reposition_window(x, y);
 120         x += forward_play->get_w();
 121         fast_play->reposition_window(x, y);
 122         x += fast_play->get_w();
 123         end_button->reposition_window(x, y);
 124         x += end_button->get_w();
 125 }
 126
 127 int PlayTransport::get_w()
 128 {
 129         return end_button->get_x() + end_button->get_w() - rewind_button->get_x();
 130 }
 131
 132 int PlayTransport::flip_vertical(int vertical, int &x, int &y)
 133 {
 134         if(vertical)
 135         {
 136                 rewind_button->reposition_window(x, y);
 137                 y += rewind_button->get_h();
 138                 fast_reverse->reposition_window(x, y);
 139                 y += fast_reverse->get_h();
 140                 reverse_play->reposition_window(x, y);
 141                 y += reverse_play->get_h();
 142                 frame_reverse_play->reposition_window(x, y);
 143                 y += frame_reverse_play->get_h();
 144                 stop_button->reposition_window(x, y);
 145                 y += stop_button->get_h();
 146                 frame_forward_play->reposition_window(x, y);
 147                 y += frame_forward_play->get_h();
 148                 forward_play->reposition_window(x, y);
 149                 y += forward_play->get_h();
 150                 fast_play->reposition_window(x, y);
 151                 y += fast_play->get_h();
 152                 end_button->reposition_window(x, y);
 153                 y += end_button->get_h();
 154         }
 155         else
 156         {
 157                 rewind_button->reposition_window(x, y - 2);
 158                 x += rewind_button->get_w();
 159                 fast_reverse->reposition_window(x, y - 2);
 160                 x += fast_reverse->get_w();
 161                 reverse_play->reposition_window(x, y - 2);
 162                 x += reverse_play->get_w();
 163                 frame_reverse_play->reposition_window(x, y - 2);
 164                 x += frame_reverse_play->get_w();
 165                 stop_button->reposition_window(x, y - 2);
 166                 x += stop_button->get_w();
 167                 frame_forward_play->reposition_window(x, y - 2);
 168                 x += frame_forward_play->get_w();
 169                 forward_play->reposition_window(x, y - 2);
 170                 x += forward_play->get_w();
 171                 fast_play->reposition_window(x, y - 2);
 172                 x += fast_play->get_w();
 173                 end_button->reposition_window(x, y - 2);
 174                 x += end_button->get_w();
 175         }
 176
 177         return 0;
 178 }
 179
 180 int PlayTransport::keypress_event()
 181 {
 182         int result = 1;
 183         int key = subwindow->get_keypress();
 184 // unqualified keys, still holding lock
 185         switch( key ) {
 186         case HOME:
 187                 goto_start();
 188                 return result;
 189         case END:
 190                 goto_end();
 191                 return result;
 192         }
 193
 194         int toggle_audio = subwindow->shift_down() ? 1 : 0;
 195         int use_inout = subwindow->ctrl_down() ? 1 : 0;
 196         int command = -1, prev_command = engine->command->command;
 197         using_inout = use_inout;
 198         subwindow->unlock_window();
 199
 200         switch( key ) {
 201         case 'k':
 202         case KPINS:     command = STOP;                 break;
 203         case KPPLUS:    command = FAST_REWIND;          break;
 204         case KP6:       command = NORMAL_REWIND;        break;
 205         case KP5:       command = SLOW_REWIND;          break;
 206         case KP4:       command = SINGLE_FRAME_REWIND;  break;
 207         case KP1:       command = SINGLE_FRAME_FWD;     break;
 208         case KP2:       command = SLOW_FWD;             break;
 209         case KP3:       command = NORMAL_FWD;           break;
 210         case KPENTER:   command = FAST_FWD;             break;
 211         case ' ':
 212                 switch( prev_command ) {
 213                 case COMMAND_NONE:
 214                 case CURRENT_FRAME:
 215                 case PAUSE:
 216                 case STOP:
 217                         command = NORMAL_FWD;
 218                         break;
 219                 default:
 220                         command = STOP;
 221                         break;
 222                 }
 223                 break;
 224         default:
 225                 result = 0;
 226                 break;
 227         }
 228         if( command >= 0 )
 229                 handle_transport(command, 0, use_inout, 1, toggle_audio);
 230
 231         subwindow->lock_window("PlayTransport::keypress_event 5");
 232         return result;
 233 }
 234
 235
 236 void PlayTransport::goto_start()
 237 {
 238         handle_transport(REWIND, 1, 0);
 239 }
 240
 241 void PlayTransport::goto_end()
 242 {
 243         handle_transport(GOTO_END, 1, 0);
 244 }
 245
 246
 247
 248 void PlayTransport::handle_transport(int command,
 249         int wait_tracking, int use_inout, int update_refresh, int toggle_audio)
 250 {
 251         if( !get_edl() ) return;
 252
 253 // Stop requires transferring the output buffer to a refresh buffer.
 254         int do_stop = 0;
 255         int resume = 0;
 256 //printf("PlayTransport::handle_transport 1 %d\n", command);
 257         int prev_command = engine->command->command;
 258         int prev_direction = engine->command->get_direction();
 259         int prev_single_frame = engine->command->single_frame();
 260
 261 // Dispatch command
 262         switch(command) {
 263         case FAST_REWIND:       // Commands that play back
 264         case NORMAL_REWIND:
 265         case SLOW_REWIND:
 266         case SINGLE_FRAME_REWIND:
 267         case SINGLE_FRAME_FWD:
 268         case SLOW_FWD:
 269         case NORMAL_FWD:
 270         case FAST_FWD:
 271                 if( prev_command == command && !prev_single_frame ) {
 272 // Same direction pressed twice.  Stop
 273                         do_stop = 1;
 274                         break;
 275                 }
 276 // Resume or change direction
 277                 switch( prev_command ) {
 278                 default:
 279                         engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 280                         engine->interrupt_playback(wait_tracking);
 281                         resume = 1;
 282 // fall through
 283                 case STOP:
 284                 case COMMAND_NONE:
 285                 case SINGLE_FRAME_FWD:
 286                 case SINGLE_FRAME_REWIND:
 287 // Start from scratch
 288                         engine->que->send_command(command, CHANGE_NONE, get_edl(),
 289                                 1, resume, use_inout, toggle_audio);
 290                         break;
 291                 }
 292                 break;
 293
 294 // Commands that stop
 295         case STOP:
 296                 do_stop = 1;
 297                 break;
 298
 299         case REWIND:
 300         case GOTO_END:
 301                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 302                         engine->interrupt_playback(wait_tracking);
 303                         break;
 304         }
 305
 306         if( do_stop ) {
 307                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 308                 engine->interrupt_playback(wait_tracking);
 309 // This is necessary to get an OpenGL output buffer
 310 // printf("PlayTransport::handle_transport 2 update_refresh=%d prev_command=%d prev_direction=%d\n",
 311 // update_refresh, prev_command, prev_direction);
 312                 if( !prev_single_frame && update_refresh &&
 313                     prev_command != STOP && prev_command != COMMAND_NONE ) {
 314                         int command = (prev_direction == PLAY_FORWARD) ?
 315                                         SINGLE_FRAME_REWIND : SINGLE_FRAME_FWD;
 316                         engine->que->send_command(command,
 317                                 CHANGE_NONE, get_edl(), 1, 0, 0);
 318                 }
 319         }
 320 }
 321
 322
 323 EDL* PlayTransport::get_edl()
 324 {
 325         return mwindow->edl;
 326 }
 327
 328 int PlayTransport::pause_transport()
 329 {
 330         if(active_button) active_button->set_mode(PLAY_MODE);
 331         return 0;
 332 }
 333
 334
 335 int PlayTransport::reset_transport()
 336 {
 337         fast_reverse->set_mode(PLAY_MODE);
 338         reverse_play->set_mode(PLAY_MODE);
 339         forward_play->set_mode(PLAY_MODE);
 340         frame_reverse_play->set_mode(PLAY_MODE);
 341         frame_forward_play->set_mode(PLAY_MODE);
 342         fast_play->set_mode(PLAY_MODE);
 343         return 0;
 344 }
 345
 346 PTransportButton::PTransportButton(MWindow *mwindow, PlayTransport *transport, int x, int y, VFrame **data)
 347  : BC_Button(x, y, data)
 348 {
 349         this->mwindow = mwindow;
 350         this->transport = transport;
 351         mode = PLAY_MODE;
 352 }
 353 PTransportButton::~PTransportButton()
 354 {
 355 }
 356
 357 int PTransportButton::set_mode(int mode)
 358 {
 359         this->mode = mode;
 360         return 0;
 361 }
 362
 363
 364 RewindButton::RewindButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 365  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("rewind"))
 366 {
 367         set_tooltip(_("Rewind ( Home )"));
 368 }
 369 int RewindButton::handle_event()
 370 {
 371 //      unlock_window();
 372         transport->goto_start();
 373 //      lock_window();
 374         return 1;
 375 }
 376
 377 FastReverseButton::FastReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 378  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastrev"))
 379 {
 380         set_tooltip(_("Fast reverse ( + )"));
 381 }
 382 int FastReverseButton::handle_event()
 383 {
 384         unlock_window();
 385         transport->handle_transport(FAST_REWIND, 0, ctrl_down());
 386         lock_window("FastReverseButton::handle_event");
 387         return 1;
 388 }
 389
 390 // Reverse playback normal speed
 391
 392 ReverseButton::ReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 393  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("reverse"))
 394 {
 395         set_tooltip(_("Normal reverse ( 6 )"));
 396 }
 397 int ReverseButton::handle_event()
 398 {
 399         unlock_window();
 400         transport->handle_transport(NORMAL_REWIND, 0, ctrl_down());
 401         lock_window("ReverseButton::handle_event");
 402         return 1;
 403 }
 404
 405 // Reverse playback one frame
 406
 407 FrameReverseButton::FrameReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 408  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framerev"))
 409 {
 410         set_tooltip(_("Frame reverse ( 4 )"));
 411 }
 412 int FrameReverseButton::handle_event()
 413 {
 414         unlock_window();
 415         transport->handle_transport(SINGLE_FRAME_REWIND, 0, ctrl_down());
 416         lock_window("FrameReverseButton::handle_event");
 417         return 1;
 418 }
 419
 420 // forward playback normal speed
 421
 422 PlayButton::PlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 423  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("play"))
 424 {
 425         set_tooltip(_("Normal forward ( 3 )"));
 426 }
 427 int PlayButton::handle_event()
 428 {
 429         unlock_window();
 430         transport->handle_transport(NORMAL_FWD, 0, ctrl_down());
 431         lock_window("PlayButton::handle_event");
 432         return 1;
 433 }
 434
 435
 436
 437 // forward playback one frame
 438
 439 FramePlayButton::FramePlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 440  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framefwd"))
 441 {
 442         set_tooltip(_("Frame forward ( 1 )"));
 443 }
 444 int FramePlayButton::handle_event()
 445 {
 446         unlock_window();
 447         transport->handle_transport(SINGLE_FRAME_FWD, 0, ctrl_down());
 448         lock_window("FramePlayButton::handle_event");
 449         return 1;
 450 }
 451
 452
 453
 454 FastPlayButton::FastPlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 455  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastfwd"))
 456 {
 457         set_tooltip(_("Fast forward ( Enter )"));
 458 }
 459 int FastPlayButton::handle_event()
 460 {
 461         unlock_window();
 462         transport->handle_transport(FAST_FWD, 0, ctrl_down());
 463         lock_window("FastPlayButton::handle_event");
 464         return 1;
 465 }
 466
 467 EndButton::EndButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 468  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("end"))
 469 {
 470         set_tooltip(_("Jump to end ( End )"));
 471 }
 472 int EndButton::handle_event()
 473 {
 474 //      unlock_window();
 475         transport->goto_end();
 476 //      lock_window();
 477         return 1;
 478 }
 479
 480 StopButton::StopButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 481  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("stop"))
 482 {
 483         set_tooltip(_("Stop ( 0 )"));
 484 }
 485 int StopButton::handle_event()
 486 {
 487         unlock_window();
 488         transport->handle_transport(STOP, 0, 0);
 489         lock_window("StopButton::handle_event");
 490         return 1;
 491 }
 492
 493
 494
 495 void PlayTransport::change_position(double position)
 496 {
 497         EDL *edl = get_edl();
 498         if( !edl ) return;
 499         int prev_command = engine->command->command;
 500 // stop transport
 501         if( prev_command != STOP && prev_command != COMMAND_NONE &&
 502             prev_command != SINGLE_FRAME_FWD && prev_command != SINGLE_FRAME_REWIND ) {
 503                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 504                 engine->interrupt_playback(0);
 505         }
 506         mwindow->gui->lock_window("PlayTransport::change_position");
 507         mwindow->goto_position(position);
 508         mwindow->gui->unlock_window();
 509 // restart command
 510         switch(prev_command) {
 511         case FAST_REWIND:
 512         case NORMAL_REWIND:
 513         case SLOW_REWIND:
 514         case SLOW_FWD:
 515         case NORMAL_FWD:
 516         case FAST_FWD:
 517                 engine->que->send_command(prev_command, CHANGE_NONE,
 518                                 get_edl(), 1, 1, using_inout);
 519         }
 520 }
 521