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         int prev_audio = engine->command->audio_toggle ?
 261                  !prev_single_frame : prev_single_frame;
 262         int cur_single_frame = TransportCommand::single_frame(command);
 263         int cur_audio = toggle_audio ?
 264                  !cur_single_frame : cur_single_frame;
 265
 266 // Dispatch command
 267         switch(command) {
 268         case FAST_REWIND:       // Commands that play back
 269         case NORMAL_REWIND:
 270         case SLOW_REWIND:
 271         case SINGLE_FRAME_REWIND:
 272         case SINGLE_FRAME_FWD:
 273         case SLOW_FWD:
 274         case NORMAL_FWD:
 275         case FAST_FWD:
 276                 if( !prev_single_frame &&
 277                     prev_command == command &&
 278                     cur_audio == prev_audio ) {
 279 // Same direction pressed twice and no change in audio state,  Stop
 280                         do_stop = 1;
 281                         break;
 282                 }
 283 // Resume or change direction
 284                 switch( prev_command ) {
 285                 default:
 286                         engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 287                         engine->interrupt_playback(wait_tracking);
 288                         resume = 1;
 289 // fall through
 290                 case STOP:
 291                 case COMMAND_NONE:
 292                 case SINGLE_FRAME_FWD:
 293                 case SINGLE_FRAME_REWIND:
 294 // Start from scratch
 295                         engine->que->send_command(command, CHANGE_NONE, get_edl(),
 296                                 1, resume, use_inout, toggle_audio);
 297                         break;
 298                 }
 299                 break;
 300
 301 // Commands that stop
 302         case STOP:
 303                 do_stop = 1;
 304                 break;
 305
 306         case REWIND:
 307         case GOTO_END:
 308                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 309                         engine->interrupt_playback(wait_tracking);
 310                         break;
 311         }
 312
 313         if( do_stop ) {
 314                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 315                 engine->interrupt_playback(wait_tracking);
 316 // This is necessary to get an OpenGL output buffer
 317 // printf("PlayTransport::handle_transport 2 update_refresh=%d prev_command=%d prev_direction=%d\n",
 318 // update_refresh, prev_command, prev_direction);
 319                 if( !prev_single_frame && update_refresh &&
 320                     prev_command != STOP && prev_command != COMMAND_NONE ) {
 321                         int command = (prev_direction == PLAY_FORWARD) ?
 322                                         SINGLE_FRAME_REWIND : SINGLE_FRAME_FWD;
 323                         engine->que->send_command(command,
 324                                 CHANGE_NONE, get_edl(), 1, 0, 0);
 325                 }
 326         }
 327 }
 328
 329
 330 EDL* PlayTransport::get_edl()
 331 {
 332         return mwindow->edl;
 333 }
 334
 335 int PlayTransport::pause_transport()
 336 {
 337         if(active_button) active_button->set_mode(PLAY_MODE);
 338         return 0;
 339 }
 340
 341
 342 int PlayTransport::reset_transport()
 343 {
 344         fast_reverse->set_mode(PLAY_MODE);
 345         reverse_play->set_mode(PLAY_MODE);
 346         forward_play->set_mode(PLAY_MODE);
 347         frame_reverse_play->set_mode(PLAY_MODE);
 348         frame_forward_play->set_mode(PLAY_MODE);
 349         fast_play->set_mode(PLAY_MODE);
 350         return 0;
 351 }
 352
 353 PTransportButton::PTransportButton(MWindow *mwindow, PlayTransport *transport, int x, int y, VFrame **data)
 354  : BC_Button(x, y, data)
 355 {
 356         this->mwindow = mwindow;
 357         this->transport = transport;
 358         mode = PLAY_MODE;
 359 }
 360 PTransportButton::~PTransportButton()
 361 {
 362 }
 363
 364 int PTransportButton::set_mode(int mode)
 365 {
 366         this->mode = mode;
 367         return 0;
 368 }
 369
 370
 371 RewindButton::RewindButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 372  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("rewind"))
 373 {
 374         set_tooltip(_("Rewind ( Home )"));
 375 }
 376 int RewindButton::handle_event()
 377 {
 378 //      unlock_window();
 379         transport->goto_start();
 380 //      lock_window();
 381         return 1;
 382 }
 383
 384 FastReverseButton::FastReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 385  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastrev"))
 386 {
 387         set_tooltip(_("Fast reverse ( + )"));
 388 }
 389 int FastReverseButton::handle_event()
 390 {
 391         unlock_window();
 392         transport->handle_transport(FAST_REWIND, 0, ctrl_down());
 393         lock_window("FastReverseButton::handle_event");
 394         return 1;
 395 }
 396
 397 // Reverse playback normal speed
 398
 399 ReverseButton::ReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 400  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("reverse"))
 401 {
 402         set_tooltip(_("Normal reverse ( 6 )"));
 403 }
 404 int ReverseButton::handle_event()
 405 {
 406         unlock_window();
 407         transport->handle_transport(NORMAL_REWIND, 0, ctrl_down());
 408         lock_window("ReverseButton::handle_event");
 409         return 1;
 410 }
 411
 412 // Reverse playback one frame
 413
 414 FrameReverseButton::FrameReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 415  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framerev"))
 416 {
 417         set_tooltip(_("Frame reverse ( 4 )"));
 418 }
 419 int FrameReverseButton::handle_event()
 420 {
 421         unlock_window();
 422         transport->handle_transport(SINGLE_FRAME_REWIND, 0, ctrl_down());
 423         lock_window("FrameReverseButton::handle_event");
 424         return 1;
 425 }
 426
 427 // forward playback normal speed
 428
 429 PlayButton::PlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 430  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("play"))
 431 {
 432         set_tooltip(_("Normal forward ( 3 )"));
 433 }
 434 int PlayButton::handle_event()
 435 {
 436         unlock_window();
 437         transport->handle_transport(NORMAL_FWD, 0, ctrl_down());
 438         lock_window("PlayButton::handle_event");
 439         return 1;
 440 }
 441
 442
 443
 444 // forward playback one frame
 445
 446 FramePlayButton::FramePlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 447  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framefwd"))
 448 {
 449         set_tooltip(_("Frame forward ( 1 )"));
 450 }
 451 int FramePlayButton::handle_event()
 452 {
 453         unlock_window();
 454         transport->handle_transport(SINGLE_FRAME_FWD, 0, ctrl_down());
 455         lock_window("FramePlayButton::handle_event");
 456         return 1;
 457 }
 458
 459
 460
 461 FastPlayButton::FastPlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 462  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastfwd"))
 463 {
 464         set_tooltip(_("Fast forward ( Enter )"));
 465 }
 466 int FastPlayButton::handle_event()
 467 {
 468         unlock_window();
 469         transport->handle_transport(FAST_FWD, 0, ctrl_down());
 470         lock_window("FastPlayButton::handle_event");
 471         return 1;
 472 }
 473
 474 EndButton::EndButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 475  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("end"))
 476 {
 477         set_tooltip(_("Jump to end ( End )"));
 478 }
 479 int EndButton::handle_event()
 480 {
 481 //      unlock_window();
 482         transport->goto_end();
 483 //      lock_window();
 484         return 1;
 485 }
 486
 487 StopButton::StopButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 488  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("stop"))
 489 {
 490         set_tooltip(_("Stop ( 0 )"));
 491 }
 492 int StopButton::handle_event()
 493 {
 494         unlock_window();
 495         transport->handle_transport(STOP, 0, 0);
 496         lock_window("StopButton::handle_event");
 497         return 1;
 498 }
 499
 500
 501
 502 void PlayTransport::change_position(double position)
 503 {
 504         EDL *edl = get_edl();
 505         if( !edl ) return;
 506         int prev_command = engine->command->command;
 507 // stop transport
 508         if( prev_command != STOP && prev_command != COMMAND_NONE &&
 509             prev_command != SINGLE_FRAME_FWD && prev_command != SINGLE_FRAME_REWIND ) {
 510                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
 511                 engine->interrupt_playback(0);
 512         }
 513         mwindow->gui->lock_window("PlayTransport::change_position");
 514         mwindow->goto_position(position);
 515         mwindow->gui->unlock_window();
 516 // restart command
 517         switch(prev_command) {
 518         case FAST_REWIND:
 519         case NORMAL_REWIND:
 520         case SLOW_REWIND:
 521         case SLOW_FWD:
 522         case NORMAL_FWD:
 523         case FAST_FWD:
 524                 engine->que->send_command(prev_command, CHANGE_NONE,
 525                                 get_edl(), 1, 1, using_inout);
 526         }
 527 }
 528