cinelerra-5.1/cinelerra/resourcepixmap.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2014 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
  23
  24 #include "arender.h"
  25 #include "aedit.h"
  26 #include "asset.h"
  27 #include "asset.inc"
  28 #include "automation.h"
  29 #include "autos.h"
  30 #include "bcsignals.h"
  31 #include "cache.h"
  32 #include "clip.h"
  33 #include "bccmodels.h"
  34 #include "datatype.h"
  35 #include "edit.h"
  36 #include "edits.h"
  37 #include "edl.h"
  38 #include "edlsession.h"
  39 #include "file.h"
  40 #include "filesystem.h"
  41 #include "floatauto.h"
  42 #include "floatautos.h"
  43 #include "framecache.h"
  44 #include "indexfile.h"
  45 #include "language.h"
  46 #include "localsession.h"
  47 #include "mwindow.h"
  48 #include "mwindowgui.h"
  49 #include "preferences.h"
  50 #include "renderengine.h"
  51 #include "resourcethread.h"
  52 #include "resourcepixmap.h"
  53 #include "samples.h"
  54 #include "theme.h"
  55 #include "timelinepane.h"
  56 #include "track.h"
  57 #include "trackcanvas.h"
  58 #include "transportque.h"
  59 #include "vedit.h"
  60 #include "vframe.h"
  61 #include "wavecache.h"
  62
  63
  64 ResourcePixmap::ResourcePixmap(MWindow *mwindow,
  65         MWindowGUI *gui,
  66         Edit *edit,
  67         int pane_number,
  68         int w,
  69         int h)
  70  : BC_Pixmap(gui, w, h)
  71 {
  72         reset();
  73
  74         this->mwindow = mwindow;
  75         this->gui = gui;
  76         this->pane_number = pane_number;
  77         startsource = edit->startsource;
  78         data_type = edit->track->data_type;
  79         if( edit->asset ) {
  80                 source_framerate = edit->asset->frame_rate;
  81                 source_samplerate = edit->asset->sample_rate;
  82         }
  83         else
  84         if( edit->nested_edl ) {
  85                 source_framerate = edit->nested_edl->session->frame_rate;
  86                 source_samplerate = edit->nested_edl->session->sample_rate;
  87         }
  88
  89         project_framerate = edit->edl->session->frame_rate;
  90         project_samplerate = edit->edl->session->sample_rate;
  91         edit_id = edit->id;  pixmap_w = w;  pixmap_h = h;
  92 }
  93
  94 ResourcePixmap::~ResourcePixmap()
  95 {
  96 }
  97
  98
  99 void ResourcePixmap::reset()
 100 {
 101         edit_x = 0;
 102         pixmap_x = 0;
 103         pixmap_w = 0;
 104         pixmap_h = 0;
 105         zoom_sample = 0;
 106         zoom_track = 0;
 107         zoom_y = 0;
 108         visible = 1;
 109 }
 110
 111 void ResourcePixmap::resize(int w, int h)
 112 {
 113         int new_w = (w > get_w()) ? w : get_w();
 114         int new_h = (h > get_h()) ? h : get_h();
 115
 116         BC_Pixmap::resize(new_w, new_h);
 117 }
 118
 119 void ResourcePixmap::update_settings(Edit *edit,
 120         int64_t edit_x, int64_t edit_w,
 121         int64_t pixmap_x, int64_t pixmap_w, int64_t pixmap_h)
 122 {
 123         this->edit_id = edit->id;
 124         this->edit_x = edit_x;
 125         this->pixmap_x = pixmap_x;
 126         this->pixmap_w = pixmap_w;
 127         this->pixmap_h = pixmap_h;
 128
 129         startsource = edit->startsource;
 130         if( edit->asset )
 131                 source_framerate = edit->asset->frame_rate;
 132         else
 133         if( edit->nested_edl )
 134                 source_framerate = edit->nested_edl->session->frame_rate;
 135         if( edit->asset )
 136                 source_samplerate = edit->asset->sample_rate;
 137         else if( edit->nested_edl )
 138                 source_samplerate = edit->nested_edl->session->sample_rate;
 139
 140         project_framerate = edit->edl->session->frame_rate;
 141         project_samplerate = edit->edl->session->sample_rate;
 142         zoom_sample = mwindow->edl->local_session->zoom_sample;
 143         zoom_track = mwindow->edl->local_session->zoom_track;
 144         zoom_y = mwindow->edl->local_session->zoom_y;
 145 }
 146
 147 void ResourcePixmap::draw_data(TrackCanvas *canvas,
 148         Edit *edit, int64_t edit_x, int64_t edit_w,
 149         int64_t pixmap_x, int64_t pixmap_w, int64_t pixmap_h,
 150         int mode, int indexes_only)
 151 {
 152 // Get new areas to fill in relative to pixmap
 153 // Area to redraw relative to pixmap
 154         int refresh_x = 0;
 155         int refresh_w = 0;
 156
 157 // Ignore if called by resourcethread.
 158 //      if( mode == IGNORE_THREAD ) return;
 159
 160         int y = 0;
 161         if( edit->track->show_titles() )
 162                 y += mwindow->theme->get_image("title_bg_data")->get_h();
 163
 164 // If want indexes only & index can't be drawn, don't do anything.
 165         int need_redraw = 0;
 166         int64_t index_zoom = 0;
 167         Indexable *indexable = 0;
 168         if( edit->asset ) indexable = edit->asset;
 169         if( edit->nested_edl ) indexable = edit->nested_edl;
 170         if( indexable && indexes_only ) {
 171                 IndexFile indexfile(mwindow, indexable);
 172                 if( !indexfile.open_index() ) {
 173                         index_zoom = indexable->index_state->index_zoom;
 174                         indexfile.close_index();
 175                 }
 176
 177                 if( index_zoom ) {
 178                         if( data_type == TRACK_AUDIO ) {
 179                                 double asset_over_session = (double)indexable->get_sample_rate() /
 180                                         mwindow->edl->session->sample_rate;
 181                                 if( index_zoom <= mwindow->edl->local_session->zoom_sample *
 182                                         asset_over_session )
 183                                         need_redraw = 1;
 184                         }
 185                 }
 186
 187                 if( !need_redraw )
 188                         return;
 189         }
 190
 191 /* Incremental drawing is not possible with resource thread */
 192 // Redraw everything
 193         refresh_x = 0;
 194         refresh_w = pixmap_w;
 195
 196 // Draw background image
 197         if( refresh_w > 0 ) {
 198                 int x1 = refresh_x, x2 = x1 + refresh_w;
 199                 int y1 = y, y2 = y1 + mwindow->edl->local_session->zoom_track;
 200                 int color = mwindow->get_title_color(edit);
 201                 mwindow->theme->draw_resource_bg(canvas, this, color,
 202                         edit_x, edit_w, pixmap_x, x1,y1, x2,y2);
 203         }
 204 //printf("ResourcePixmap::draw_data 70\n");
 205
 206
 207 // Draw media which already exists
 208         Track *track = edit->track;
 209         if( track->draw ) {
 210                 switch( track->data_type )
 211                 {
 212                         case TRACK_AUDIO:
 213                                 draw_audio_resource(canvas,
 214                                         edit, refresh_x, refresh_w);
 215                                 break;
 216
 217                         case TRACK_VIDEO:
 218                                 draw_video_resource(canvas, edit, edit_x, edit_w,
 219                                         pixmap_x, pixmap_w, refresh_x, refresh_w,
 220                                         mode);
 221                                 break;
 222
 223                         case TRACK_SUBTITLE:
 224                                 draw_subttl_resource(canvas, edit,
 225                                         refresh_x, refresh_w);
 226                                 break;
 227                 }
 228         }
 229 SET_TRACE
 230 }
 231
 232
 233 VFrame *ResourcePixmap::change_title_color(VFrame *title_bg, int color)
 234 {
 235         int colormodel = title_bg->get_color_model();
 236         int bpp = BC_CModels::calculate_pixelsize(colormodel);
 237         int tw = title_bg->get_w(), tw1 = tw-1, th = title_bg->get_h();
 238         VFrame *title_bar = new VFrame(tw, th, colormodel);
 239         uint8_t cr = (color>>16), cg = (color>>8), cb = (color>>0);
 240         uint8_t **bar_rows = title_bar->get_rows();
 241         const uint8_t gap_grey = 0x4a;
 242         if( th > 0 ) {
 243                 uint8_t *cp = bar_rows[0];
 244                 for( int x=0; x<tw; ++x ) {
 245                         cp[0] = cp[1] = cp[2] = gap_grey;
 246                         if( bpp > 3 ) cp[3] = 0xff;
 247                         cp += bpp;
 248                 }
 249         }
 250         for( int y=1; y<th; ++y ) {
 251                 uint8_t *cp = bar_rows[y];
 252                 if( tw > 0 ) {
 253                         cp[0] = cp[1] = cp[2] = gap_grey;
 254                         if( bpp > 3 ) cp[3] = 0xff;
 255                         cp += bpp;
 256                 }
 257                 for( int x=1; x<tw1; ++x ) {
 258                         cp[0] = cr; cp[1] = cg; cp[2] = cb;
 259                         if( bpp > 3 ) cp[3] = 0xff;
 260                         cp += bpp;
 261                 }
 262                 if( tw > 1 ) {
 263                         cp[0] = cp[1] = cp[2] = gap_grey;
 264                         if( bpp > 3 ) cp[3] = 0xff;
 265                 }
 266         }
 267         return title_bar;
 268 }
 269
 270 VFrame *ResourcePixmap::change_picon_alpha(VFrame *picon_frame, int alpha)
 271 {
 272         uint8_t **picon_rows = picon_frame->get_rows();
 273         int w = picon_frame->get_w(), h = picon_frame->get_h();
 274         int color_model = picon_frame->get_color_model();
 275         int bpp = BC_CModels::calculate_pixelsize(color_model);
 276         VFrame *frame = new VFrame(w, h, BC_RGBA8888);
 277         uint8_t **rows = frame->get_rows();
 278         for( int y=0; y<h; ++y ) {
 279                 uint8_t *bp = picon_rows[y], *rp = rows[y];
 280                 for( int x=0; x<w; ++x ) {
 281                         rp[0] = bp[0];  rp[1] = bp[1];
 282                         rp[2] = bp[2];  bp += bpp;
 283                         rp[3] = alpha;  rp += 4;
 284                 }
 285         }
 286         return frame;
 287 }
 288
 289 void ResourcePixmap::draw_title(TrackCanvas *canvas,
 290         Edit *edit, int64_t edit_x, int64_t edit_w,
 291         int64_t pixmap_x, int64_t pixmap_w)
 292 {
 293 // coords relative to pixmap
 294         int64_t total_x = edit_x - pixmap_x, total_w = edit_w;
 295         int64_t x = total_x, w = total_w;
 296         int left_margin = xS(10);
 297
 298         if( x < 0 ) { w -= -x; x = 0; }
 299         if( w > pixmap_w ) w -= w - pixmap_w;
 300
 301         VFrame *title_bg = mwindow->theme->get_image("title_bg_data");
 302         int color = mwindow->get_title_color(edit);
 303         VFrame *title_bar = !color ? title_bg :
 304                 change_title_color(title_bg, color);
 305         canvas->draw_3segmenth(x, 0, w, total_x, total_w, title_bar, this);
 306         if( title_bar != title_bg ) delete title_bar;
 307
 308         char title[BCTEXTLEN];
 309         edit->get_title(title);
 310         canvas->set_color(mwindow->theme->title_color);
 311         canvas->set_font(mwindow->theme->title_font);
 312
 313 // Justify the text on the left boundary of the edit if it is visible.
 314 // Otherwise justify it on the left side of the screen.
 315         int text_x = total_x + left_margin;
 316         text_x = MAX(left_margin, text_x);
 317 //printf("ResourcePixmap::draw_title 1 %d\n", text_x);
 318         canvas->draw_text(text_x, // 2,
 319                 canvas->get_text_ascent(mwindow->theme->title_font) + yS(2),
 320                 title, strlen(title), this);
 321 }
 322
 323
 324 // Need to draw one more x
 325 void ResourcePixmap::draw_audio_resource(TrackCanvas *canvas, Edit *edit, int x, int w)
 326 {
 327         if( w <= 0 ) return;
 328         if( !edit->asset && !edit->nested_edl ) return;
 329         Indexable *indexable = 0;
 330         if( edit->asset ) indexable = edit->asset;
 331         if( edit->nested_edl ) indexable = edit->nested_edl;
 332 // printf("ResourcePixmap::draw_audio_resource %d x=%d w=%d\n", __LINE__, x, w);
 333 SET_TRACE
 334
 335         IndexState *index_state = indexable->index_state;
 336         double asset_over_session = (double)indexable->get_sample_rate() /
 337                 mwindow->edl->session->sample_rate;
 338 // Develop strategy for drawing
 339 // printf("ResourcePixmap::draw_audio_resource %d %p %d\n",
 340 // __LINE__,
 341 // index_state,
 342 // index_state->index_status);
 343         switch( index_state->index_status )
 344         {
 345                 case INDEX_NOTTESTED:
 346                         return;
 347 // Disabled.  All files have an index.
 348 //              case INDEX_TOOSMALL:
 349 //                      draw_audio_source(canvas, edit, x, w);
 350 //                      break;
 351                 case INDEX_BUILDING:
 352                 case INDEX_READY: {
 353                         IndexFile indexfile(mwindow, indexable);
 354                         if( !indexfile.open_index() ) {
 355                                 if( index_state->index_zoom >
 356                                         mwindow->edl->local_session->zoom_sample *
 357                                                 asset_over_session ) {
 358                                         draw_audio_source(canvas, edit, x, w);
 359                                 }
 360                                 else {
 361                                         indexfile.draw_index(canvas, this, edit, x, w);
 362                                 }
 363                                 indexfile.close_index();
 364                         }
 365                         break;
 366                 }
 367         }
 368         if( !mwindow->preferences->rectify_audio ) {
 369                 int center_pixel = calculate_center_pixel(edit->track);
 370                 canvas->set_line_dashes(1);
 371                 canvas->set_color(mwindow->theme->zero_crossing_color);
 372                 canvas->draw_line(x, center_pixel, x + w, center_pixel, this);
 373                 canvas->set_line_dashes(0);
 374         }
 375 }
 376
 377
 378 int ResourcePixmap::calculate_center_pixel(Track *track)
 379 {
 380         int rect_audio = mwindow->preferences->rectify_audio;
 381         int center_pixel = !rect_audio ?
 382                 mwindow->edl->local_session->zoom_track / 2 :
 383                 mwindow->edl->local_session->zoom_track ;
 384         if( track->show_titles() )
 385                 center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
 386         return center_pixel;
 387 }
 388
 389 void ResourcePixmap::draw_audio_source(TrackCanvas *canvas, Edit *edit, int x, int w)
 390 {
 391         w++;
 392         Indexable *indexable = edit->get_source();
 393         int center_pixel = calculate_center_pixel(edit->track);
 394         int rect_audio = mwindow->preferences->rectify_audio;
 395         int64_t scale_y = !rect_audio ?
 396                 mwindow->edl->local_session->zoom_y :
 397                 mwindow->edl->local_session->zoom_y * 2;
 398         int y_max = center_pixel + scale_y / 2 - 1;
 399
 400         double project_zoom = mwindow->edl->local_session->zoom_sample;
 401         FloatAutos *speed_autos = !edit->track->has_speed() ? 0 :
 402                 (FloatAutos *)edit->track->automation->autos[AUTOMATION_SPEED];
 403         int64_t edit_position = (x + pixmap_x - edit_x) * project_zoom;
 404         int64_t start_position = edit->startsource;
 405         start_position += !speed_autos ? edit_position :
 406                 speed_autos->automation_integral(edit->startproject, edit_position, PLAY_FORWARD);
 407         int64_t end_position = edit->startsource;
 408         edit_position = (x + w + pixmap_x - edit_x) * project_zoom;
 409         end_position += !speed_autos ? edit_position :
 410                 speed_autos->automation_integral(edit->startproject, edit_position, PLAY_FORWARD);
 411
 412         double session_sample_rate = mwindow->edl->session->sample_rate;
 413         double asset_over_session = (double)indexable->get_sample_rate() / session_sample_rate;
 414         start_position *= asset_over_session;
 415         end_position *= asset_over_session;
 416         int sample_size = end_position - start_position;
 417         if( sample_size < 0 ) sample_size = 0;
 418         int source_samples = sample_size + 1;
 419
 420 // Single sample zoom
 421         if( mwindow->edl->local_session->zoom_sample == 1 ) {
 422                 Samples *buffer = 0;
 423                 int result = 0;
 424                 canvas->set_color(mwindow->theme->audio_color);
 425
 426                 if( indexable->is_asset ) {
 427                         mwindow->gui->unlock_window();
 428                         File *source = mwindow->audio_cache->check_out(edit->asset, mwindow->edl);
 429                         mwindow->gui->lock_window("draw_audio_source");
 430
 431                         if( !source ) {
 432                                 printf(_("ResourcePixmap::draw_audio_source: failed to check out %s for drawing.\n"), edit->asset->path);
 433                                 return;
 434                         }
 435
 436                         source->set_audio_position(start_position);
 437                         source->set_channel(edit->channel);
 438                         buffer = new Samples(source_samples);
 439                         result = source->read_samples(buffer, source_samples);
 440                         mwindow->audio_cache->check_in(edit->asset);
 441                 }
 442                 else {
 443                         if( mwindow->gui->render_engine &&
 444                                 mwindow->gui->render_engine_id != indexable->id ) {
 445                                 delete mwindow->gui->render_engine;
 446                                 mwindow->gui->render_engine = 0;
 447                         }
 448
 449                         if( !mwindow->gui->render_engine ) {
 450                                 TransportCommand command;
 451                                 command.command = NORMAL_FWD;
 452                                 command.get_edl()->copy_all(edit->nested_edl);
 453                                 command.change_type = CHANGE_ALL;
 454                                 command.realtime = 0;
 455                                 mwindow->gui->render_engine = new RenderEngine(0,
 456                                         mwindow->preferences, 0, 0);
 457                                 mwindow->gui->render_engine_id = edit->nested_edl->id;
 458                                 mwindow->gui->render_engine->set_acache(mwindow->audio_cache);
 459                                 mwindow->gui->render_engine->arm_command(&command);
 460                         }
 461
 462                         if( mwindow->gui->render_engine->arender ) {
 463                                 Samples *buffers[MAX_CHANNELS];
 464                                 memset(buffers, 0, sizeof(buffers));
 465                                 int nch = indexable->get_audio_channels(), ch = edit->channel;
 466                                 for( int i=0; i<nch; ++i )
 467                                         buffers[i] = new Samples(source_samples);
 468                                 mwindow->gui->render_engine->arender->process_buffer(
 469                                         buffers, source_samples, start_position);
 470                                 for( int i=0; i<nch; ++i )
 471                                         if( i != ch ) delete buffers[i];
 472                                 buffer = buffers[ch];
 473                         }
 474                 }
 475
 476                 if( !result ) {
 477                         double *samples = buffer->get_data();
 478                         double sample = !rect_audio ? samples[0] : fabs(samples[0]);
 479                         int y1 = center_pixel - sample * scale_y / 2;
 480                         int y2 = CLIP(y1, 0, y_max);
 481
 482                         for( int x1=x; x1<w; ++x1 ) {
 483                                 int x2 = x1 + 1;
 484                                 edit_position = (x1 + pixmap_x - edit_x) * project_zoom;
 485                                 int64_t speed_position = edit->startsource;
 486                                 speed_position += !speed_autos ? edit_position :
 487                                         speed_autos->automation_integral(
 488                                                 edit->startproject, edit_position, PLAY_FORWARD);
 489                                 int j = speed_position * asset_over_session - start_position;
 490                                 CLAMP(j, 0, sample_size);
 491                                 int y0 = y2;
 492                                 sample = !rect_audio ? samples[j] : fabs(samples[j]);
 493                                 y1 = center_pixel - sample * scale_y / 2;
 494                                 y2 = CLIP(y1, 0, y_max);
 495 //printf("ResourcePixmap::draw_audio_source %d %d %d\n", __LINE__, y1, y2);
 496                                 if( !rect_audio )
 497                                         canvas->draw_line(x1, y0, x2, y2, this);
 498                                 else
 499                                         canvas->draw_line(x2, center_pixel, x2, y2, this);
 500                         }
 501                 }
 502
 503                 delete buffer;
 504         }
 505         else {
 506                 edit_position = (x + pixmap_x - edit_x) * project_zoom;
 507                 int64_t speed_position = edit->startsource;
 508                 speed_position += !speed_autos ? edit_position :
 509                         speed_autos->automation_integral(
 510                                 edit->startproject, edit_position, PLAY_FORWARD);
 511                 int64_t next_position = asset_over_session * speed_position;
 512 // Multiple sample zoom
 513                 int first_pixel = 1, prev_y1 = -1, prev_y2 = y_max;
 514                 canvas->set_color(mwindow->theme->audio_color);
 515                 ++x;
 516
 517 // Draw each pixel from the cache
 518 //printf("ResourcePixmap::draw_audio_source %d x=%d w=%d\n", __LINE__, x, w);
 519                 for( int x2=x+w; x<x2; ++x ) {
 520                         int64_t prev_position = next_position;
 521                         edit_position = (x + pixmap_x - edit_x) * project_zoom;
 522                         speed_position = edit->startsource;
 523                         speed_position += !speed_autos ? edit_position :
 524                                 speed_autos->automation_integral(
 525                                         edit->startproject, edit_position, PLAY_FORWARD);
 526                         next_position = speed_position * asset_over_session;
 527 // Starting sample of pixel relative to asset rate.
 528                         WaveCacheItem *item = mwindow->wave_cache->get_wave(indexable->id,
 529                                         edit->channel, prev_position, next_position);
 530                         if( item ) {
 531                                 double item_low = !rect_audio ? item->low : fabs(item->low);
 532 //printf("ResourcePixmap::draw_audio_source %d\n", __LINE__);
 533                                 int y_lo = (int)(center_pixel - item_low * scale_y / 2);
 534                                 int y1 = CLIP(y_lo, 0, y_max);
 535                                 double item_high = !rect_audio ? item->high : fabs(item->high);
 536                                 int y_hi = (int)(center_pixel - item_high * scale_y / 2);
 537                                 int y2 = CLIP(y_hi, 0, y_max);
 538                                 if( !first_pixel ) {
 539                                         y_lo = MIN(y1,prev_y2);
 540                                         y_hi = MAX(y2,prev_y1);
 541                                 }
 542                                 else {
 543                                         first_pixel = 0;
 544                                         y_lo = y1;  y_hi = y2;
 545                                 }
 546                                 prev_y1 = y1;  prev_y2 = y2;
 547                                 canvas->draw_line(x, !rect_audio ? y_lo : center_pixel, x, y_hi, this);
 548 //printf("ResourcePixmap::draw_audio_source %d %d %d %d\n", __LINE__, x, y1, y2);
 549                                 mwindow->wave_cache->unlock();
 550                         }
 551                         else {
 552 //printf("ResourcePixmap::draw_audio_source %d\n", __LINE__);
 553                                 gui->resource_thread->add_wave(this,
 554                                         canvas->pane->number, indexable, x,
 555                                         edit->channel, prev_position, next_position);
 556                                 first_pixel = 1;  prev_y1 = -1;  prev_y2 = y_max;
 557                         }
 558                 }
 559         }
 560
 561         canvas->test_timer();
 562 }
 563
 564 void ResourcePixmap::draw_wave(TrackCanvas *canvas,
 565         int x, double high, double low)
 566 {
 567         int rect_audio = mwindow->preferences->rectify_audio;
 568         if( rect_audio ) { low = fabs(low);  high = fabs(high); }
 569         int top_pixel =  mwindow->edl->session->show_titles ? 0 :
 570                 mwindow->theme->get_image("title_bg_data")->get_h();
 571         int center_pixel = !rect_audio ?
 572                 mwindow->edl->local_session->zoom_track / 2 + top_pixel :
 573                 mwindow->edl->local_session->zoom_track + top_pixel ;
 574         int scale_y = !rect_audio ?
 575                 mwindow->edl->local_session->zoom_y / 2 :
 576                 mwindow->edl->local_session->zoom_y ;
 577         int bottom_pixel = top_pixel + mwindow->edl->local_session->zoom_track;
 578         int y1 = (int)(center_pixel - low * scale_y);
 579         int y2 = (int)(center_pixel - high * scale_y);
 580         CLAMP(y1, top_pixel, bottom_pixel);
 581         CLAMP(y2, top_pixel, bottom_pixel);
 582         canvas->set_color(mwindow->theme->audio_color);
 583         canvas->draw_line(x, !rect_audio ? y1 : bottom_pixel, x, y2, this);
 584 }
 585
 586
 587 void ResourcePixmap::draw_video_resource(TrackCanvas *canvas,
 588         Edit *edit, int64_t edit_x, int64_t edit_w, int64_t pixmap_x, int64_t pixmap_w,
 589         int refresh_x, int refresh_w, int mode)
 590 {
 591 //PRINT_TRACE
 592 //BC_Signals::dump_stack();
 593
 594 // pixels spanned by a picon
 595         int64_t picon_w = Units::round(edit->picon_w());
 596         int64_t picon_h = edit->picon_h();
 597 //      if( picon_w <= 0 || picon_w > edit_w ) return;
 598 // Don't draw video if picon is empty, or edit only hairline
 599         if( picon_w < 1 || edit_w < 2 ) return;
 600 // or bigger than edit and fills at less than 1.5 percent timeline
 601         if( picon_w > edit_w && edit_w < canvas->get_w()/64 ) return;
 602
 603 // Frames spanned by a picon
 604         double frame_w = edit->frame_w();
 605 // pixels spanned by a frame
 606         if( frame_w < picon_w ) frame_w = picon_w;
 607 // Current pixel relative to pixmap
 608         int y = 0;
 609         if( edit->track->show_titles() )
 610                 y += mwindow->theme->get_image("title_bg_data")->get_h();
 611
 612 // Frame in project touched by current pixel
 613         FloatAutos *speed_autos = !edit->track->has_speed() ? 0 :
 614                 (FloatAutos *)edit->track->automation->autos[AUTOMATION_SPEED];
 615         Indexable *indexable = edit->get_source();
 616         double session_sample_rate = mwindow->edl->session->sample_rate;
 617         double project_zoom = mwindow->edl->local_session->zoom_sample / session_sample_rate;
 618         int skip_frames = Units::to_int64(((int64_t)refresh_x + pixmap_x - edit_x) / frame_w);
 619         int x = Units::to_int64(skip_frames * frame_w) + edit_x - pixmap_x;
 620
 621 // Draw only cached frames
 622         while( x < refresh_x + refresh_w ) {
 623                 int64_t edit_position =
 624                         edit->track->to_units((x + pixmap_x - edit_x) * project_zoom, 0);
 625                 int64_t speed_position = edit->startsource;
 626                 speed_position += !speed_autos ? edit_position :
 627                          speed_autos->automation_integral(
 628                                 edit->startproject, edit_position, PLAY_FORWARD);
 629                 VFrame *picon_frame = indexable->id < 0 ? 0 :
 630                         mwindow->frame_cache->get_frame_ptr(speed_position, edit->channel,
 631                                 mwindow->edl->session->frame_rate, BC_RGB888,
 632                                 picon_w, picon_h, indexable->id);
 633                 int bg_color = gui->get_bg_color();
 634                 if( picon_frame ) {
 635                         VFrame *frame = picon_frame;
 636                         int color = mwindow->get_title_color(edit);
 637                         if( color ) {
 638                                 int alpha = (~color >> 24) & 0xff;
 639                                 frame = change_picon_alpha(picon_frame, alpha);
 640                                 gui->set_bg_color(color & 0xffffff);
 641                         }
 642                         draw_vframe(frame, x, y, picon_w, picon_h, 0, 0);
 643                         if( frame != picon_frame ) {
 644                                 delete frame;
 645                                 gui->set_bg_color(bg_color);
 646                         }
 647                         mwindow->frame_cache->unlock();
 648                 }
 649                 else if( mode != IGNORE_THREAD ) {
 650 // Set picon thread to draw in background
 651 // printf("ResourcePixmap::draw_video_resource %d %d %lld\n",
 652 // __LINE__, mwindow->frame_cache->total(), source_frame);
 653                         gui->resource_thread->add_picon(this, canvas->pane->number, x, y,
 654                                 picon_w, picon_h, mwindow->edl->session->frame_rate,
 655                                 speed_position, edit->channel, indexable);
 656                 }
 657                 x += frame_w;
 658                 canvas->test_timer();
 659         }
 660 }
 661
 662 #include "strack.h"
 663
 664 void ResourcePixmap::draw_subttl_resource(TrackCanvas *canvas, Edit *edit, int x, int w)
 665 {
 666         SEdit *sedit = (SEdit *)edit;
 667         char *text = sedit->get_text();
 668         if( !*text || w < xS(10) ) return;
 669         int center_pixel = canvas->resource_h() / 2;
 670         if( edit->track->show_titles() )
 671                 center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
 672         int64_t scale_y = mwindow->edl->local_session->zoom_y;
 673         int x0 = edit_x;
 674         if( x0 < 0 ) x0 = -x0;
 675         int x1 = (int)(pixmap_x - x0 + x);
 676         int y_max = center_pixel + scale_y / 2 - 1;
 677         int font = MEDIUMFONT, color = WHITE;
 678         canvas->set_font(font);
 679         canvas->set_color(color);
 680         int ch = canvas->get_text_height(font);
 681         int hh = canvas->get_text_height(font,text) + ch/2;
 682         int y1 = y_max - hh - yS(10);
 683         if( y1 < 0 ) y1 = 0;
 684         canvas->draw_text(x1, y1, text, -1, this);
 685 }
 686
 687 void ResourcePixmap::dump()
 688 {
 689         printf("ResourcePixmap %p\n", this);
 690         printf(" edit %jx edit_x %jd pixmap_x %jd pixmap_w %jd visible %d\n",
 691                 edit_id, edit_x, pixmap_x, pixmap_w, visible);
 692 }
 693