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         data_h = edit->track->data_h;
  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         visible = 1;
 107 }
 108
 109 void ResourcePixmap::resize(int w, int h)
 110 {
 111         int new_w = (w > get_w()) ? w : get_w();
 112         int new_h = (h > get_h()) ? h : get_h();
 113
 114         BC_Pixmap::resize(new_w, new_h);
 115 }
 116
 117 void ResourcePixmap::update_settings(Edit *edit,
 118         int64_t edit_x, int64_t edit_w,
 119         int64_t pixmap_x, int64_t pixmap_w, int64_t pixmap_h)
 120 {
 121         this->edit_id = edit->id;
 122         this->edit_x = edit_x;
 123         this->pixmap_x = pixmap_x;
 124         this->pixmap_w = pixmap_w;
 125         this->pixmap_h = pixmap_h;
 126
 127         startsource = edit->startsource;
 128         if( edit->asset )
 129                 source_framerate = edit->asset->frame_rate;
 130         else
 131         if( edit->nested_edl )
 132                 source_framerate = edit->nested_edl->session->frame_rate;
 133         if( edit->asset )
 134                 source_samplerate = edit->asset->sample_rate;
 135         else if( edit->nested_edl )
 136                 source_samplerate = edit->nested_edl->session->sample_rate;
 137
 138         project_framerate = edit->edl->session->frame_rate;
 139         project_samplerate = edit->edl->session->sample_rate;
 140         zoom_sample = mwindow->edl->local_session->zoom_sample;
 141 }
 142
 143 void ResourcePixmap::draw_data(TrackCanvas *canvas,
 144         Edit *edit, int64_t edit_x, int64_t edit_w,
 145         int64_t pixmap_x, int64_t pixmap_w, int64_t pixmap_h,
 146         int mode, int indexes_only)
 147 {
 148 // Get new areas to fill in relative to pixmap
 149 // Area to redraw relative to pixmap
 150         int refresh_x = 0;
 151         int refresh_w = 0;
 152
 153 // Ignore if called by resourcethread.
 154         if( mode == IGNORE_THREAD ) return;
 155
 156         int y = 0;
 157         if( edit->track->show_titles() )
 158                 y += mwindow->theme->get_image("title_bg_data")->get_h();
 159
 160 // If want indexes only & index can't be drawn, don't do anything.
 161         int need_redraw = 0;
 162         int64_t index_zoom = 0;
 163         Indexable *indexable = 0;
 164         if( edit->asset ) indexable = edit->asset;
 165         if( edit->nested_edl ) indexable = edit->nested_edl;
 166         if( indexable && indexes_only ) {
 167                 IndexFile indexfile(mwindow, indexable);
 168                 if( !indexfile.open_index() ) {
 169                         index_zoom = indexable->index_state->index_zoom;
 170                         indexfile.close_index();
 171                 }
 172
 173                 if( index_zoom ) {
 174                         if( data_type == TRACK_AUDIO ) {
 175                                 double asset_over_session = (double)indexable->get_sample_rate() /
 176                                         mwindow->edl->session->sample_rate;
 177                                 if( index_zoom <= mwindow->edl->local_session->zoom_sample *
 178                                         asset_over_session )
 179                                         need_redraw = 1;
 180                         }
 181                 }
 182
 183                 if( !need_redraw )
 184                         return;
 185         }
 186
 187 /* Incremental drawing is not possible with resource thread */
 188 // Redraw everything
 189         refresh_x = 0;
 190         refresh_w = pixmap_w;
 191         Track *track = edit->track;
 192
 193 // Draw background image
 194         if( refresh_w > 0 ) {
 195                 int x1 = refresh_x, x2 = x1 + refresh_w;
 196                 int y1 = y, y2 = y1 + track->data_h;
 197                 int color = mwindow->get_title_color(edit);
 198                 mwindow->theme->draw_resource_bg(canvas, this, color,
 199                         edit, edit_x, edit_w, pixmap_x, x1,y1, x2,y2);
 200         }
 201 //printf("ResourcePixmap::draw_data 70\n");
 202
 203
 204 // Draw media which already exists
 205         if( track->draw ) {
 206                 switch( track->data_type )
 207                 {
 208                         case TRACK_AUDIO:
 209                                 draw_audio_resource(canvas,
 210                                         edit, refresh_x, refresh_w);
 211                                 break;
 212
 213                         case TRACK_VIDEO:
 214                                 draw_video_resource(canvas, edit, edit_x, edit_w,
 215                                         pixmap_x, pixmap_w, refresh_x, refresh_w,
 216                                         mode);
 217                                 break;
 218
 219                         case TRACK_SUBTITLE:
 220                                 draw_subttl_resource(canvas, edit,
 221                                         refresh_x, refresh_w);
 222                                 break;
 223                 }
 224         }
 225 SET_TRACE
 226 }
 227
 228
 229 VFrame *ResourcePixmap::change_title_color(VFrame *title_bg, int color)
 230 {
 231         int colormodel = title_bg->get_color_model();
 232         int bpp = BC_CModels::calculate_pixelsize(colormodel);
 233         int tw = title_bg->get_w(), tw1 = tw-1, th = title_bg->get_h();
 234         VFrame *title_bar = new VFrame(tw, th, colormodel);
 235         uint8_t **bar_rows = title_bar->get_rows();
 236         const uint8_t gap_grey = 0x4a;
 237         union { unsigned rgba; struct { uint8_t r,g,b,a; }; } c;
 238         c.r = color>>16;  c.g = color>>8;  c.b = color>>0;  c.a = 0xff;
 239         if( BC_CModels::has_alpha(colormodel) && // fast path
 240             BC_CModels::calculate_pixelsize(colormodel) == sizeof(unsigned) ) {
 241                 const unsigned gap_rgba = (0xff<<24) |
 242                         (gap_grey<<16) | (gap_grey<<8) | (gap_grey<<0);
 243                 if( th > 0 ) {
 244                         unsigned *bp = (unsigned *)bar_rows[0];
 245                         for( int i=tw; --i>=0; ) *bp++ = gap_rgba;
 246                 }
 247                 for( int y=1; y<th; ++y ) {
 248                         unsigned *bp = (unsigned *)bar_rows[y];
 249                         if( tw > 0 ) *bp++ = gap_rgba;
 250                         for( int i=tw1; --i>0; ++bp ) *bp = c.rgba;
 251                         if( tw > 1 ) *bp = gap_rgba;
 252                 }
 253         }
 254         else {
 255                 if( th > 0 ) {
 256                         uint8_t *cp = bar_rows[0];
 257                         for( int x=0; x<tw; ++x ) {
 258                                 cp[0] = cp[1] = cp[2] = gap_grey;
 259                                 if( bpp > 3 ) cp[3] = 0xff;
 260                                 cp += bpp;
 261                         }
 262                 }
 263                 for( int y=1; y<th; ++y ) {
 264                         uint8_t *cp = bar_rows[y];
 265                         if( tw > 0 ) {
 266                                 cp[0] = cp[1] = cp[2] = gap_grey;
 267                                 if( bpp > 3 ) cp[3] = 0xff;
 268                                 cp += bpp;
 269                         }
 270                         for( int x=1; x<tw1; ++x ) {
 271                                 cp[0] = c.r; cp[1] = c.g; cp[2] = c.b;
 272                                 if( bpp > 3 ) cp[3] = 0xff;
 273                                 cp += bpp;
 274                         }
 275                         if( tw > 1 ) {
 276                                 cp[0] = cp[1] = cp[2] = gap_grey;
 277                                 if( bpp > 3 ) cp[3] = 0xff;
 278                         }
 279                 }
 280         }
 281         return title_bar;
 282 }
 283
 284 VFrame *ResourcePixmap::change_picon_alpha(VFrame *picon_frame, int alpha)
 285 {
 286         uint8_t **picon_rows = picon_frame->get_rows();
 287         int pw = picon_frame->get_w(), ph = picon_frame->get_h();
 288         int color_model = picon_frame->get_color_model();
 289         int bpp = BC_CModels::calculate_pixelsize(color_model);
 290         VFrame *frame = new VFrame(pw, ph, BC_RGBA8888);
 291         uint8_t **rows = frame->get_rows();
 292         if( BC_CModels::has_alpha(color_model) && // fast path
 293             BC_CModels::calculate_pixelsize(color_model) == sizeof(unsigned) ) {
 294                 unsigned a = alpha << 24;
 295                 for( int y=0; y<ph; ++y ) {
 296                         unsigned *bp = (unsigned *)picon_rows[y];
 297                         unsigned *rp = (unsigned *)rows[y];
 298                         for( int i=pw; --i>=0; ++bp,++rp ) *rp = (*bp & 0xffffff) | a;
 299                 }
 300         }
 301         else {
 302                 for( int y=0; y<ph; ++y ) {
 303                         uint8_t *bp = picon_rows[y], *rp = rows[y];
 304                         for( int x=0; x<pw; ++x ) {
 305                                 rp[0] = bp[0];  rp[1] = bp[1];
 306                                 rp[2] = bp[2];  bp += bpp;
 307                                 rp[3] = alpha;  rp += 4;
 308                         }
 309                 }
 310         }
 311         return frame;
 312 }
 313
 314 void ResourcePixmap::draw_title(TrackCanvas *canvas,
 315         Edit *edit, int64_t edit_x, int64_t edit_w,
 316         int64_t pixmap_x, int64_t pixmap_w)
 317 {
 318 // coords relative to pixmap
 319         int64_t total_x = edit_x - pixmap_x, total_w = edit_w;
 320         int64_t x = total_x, w = total_w;
 321         int left_margin = xS(10);
 322
 323         if( x < 0 ) { w -= -x; x = 0; }
 324         if( w > pixmap_w ) w -= w - pixmap_w;
 325
 326         VFrame *title_bg = mwindow->theme->get_image("title_bg_data");
 327         int color = mwindow->get_title_color(edit);
 328         VFrame *title_bar = !color ? title_bg :
 329                 change_title_color(title_bg, color);
 330         canvas->draw_3segmenth(x, 0, w, total_x, total_w, title_bar, this);
 331         if( title_bar != title_bg ) delete title_bar;
 332
 333         char title[BCTEXTLEN];
 334         edit->get_title(title);
 335         canvas->set_color(mwindow->theme->title_color);
 336         canvas->set_font(mwindow->theme->title_font);
 337
 338 // Justify the text on the left boundary of the edit if it is visible.
 339 // Otherwise justify it on the left side of the screen.
 340         int text_x = total_x + left_margin;
 341         text_x = MAX(left_margin, text_x);
 342 //printf("ResourcePixmap::draw_title 1 %d\n", text_x);
 343         canvas->draw_text(text_x, // 2,
 344                 canvas->get_text_ascent(mwindow->theme->title_font) + yS(2),
 345                 title, strlen(title), this);
 346 }
 347
 348
 349 // Need to draw one more x
 350 void ResourcePixmap::draw_audio_resource(TrackCanvas *canvas, Edit *edit, int x, int w)
 351 {
 352         if( w <= 0 ) return;
 353         if( !edit->asset && !edit->nested_edl ) return;
 354         Indexable *indexable = 0;
 355         if( edit->asset ) indexable = edit->asset;
 356         if( edit->nested_edl ) indexable = edit->nested_edl;
 357 // printf("ResourcePixmap::draw_audio_resource %d x=%d w=%d\n", __LINE__, x, w);
 358 SET_TRACE
 359
 360         IndexState *index_state = indexable->index_state;
 361         double asset_over_session = (double)indexable->get_sample_rate() /
 362                 mwindow->edl->session->sample_rate;
 363 // Develop strategy for drawing
 364 // printf("ResourcePixmap::draw_audio_resource %d %p %d\n",
 365 // __LINE__,
 366 // index_state,
 367 // index_state->index_status);
 368         switch( index_state->index_status )
 369         {
 370                 case INDEX_NOTTESTED:
 371                         return;
 372 // Disabled.  All files have an index.
 373 //              case INDEX_TOOSMALL:
 374 //                      draw_audio_source(canvas, edit, x, w);
 375 //                      break;
 376                 case INDEX_BUILDING:
 377                 case INDEX_READY: {
 378                         IndexFile indexfile(mwindow, indexable);
 379                         if( !indexfile.open_index() ) {
 380                                 if( index_state->index_zoom >
 381                                         mwindow->edl->local_session->zoom_sample *
 382                                                 asset_over_session ) {
 383                                         draw_audio_source(canvas, edit, x, w);
 384                                 }
 385                                 else {
 386                                         indexfile.draw_index(canvas, this, edit, x, w);
 387                                 }
 388                                 indexfile.close_index();
 389                         }
 390                         break;
 391                 }
 392         }
 393         if( !mwindow->preferences->rectify_audio ) {
 394                 int center_pixel = calculate_center_pixel(edit->track);
 395                 canvas->set_line_dashes(1);
 396                 canvas->set_color(mwindow->theme->zero_crossing_color);
 397                 canvas->draw_line(x, center_pixel, x + w, center_pixel, this);
 398                 canvas->set_line_dashes(0);
 399         }
 400 }
 401
 402
 403 int ResourcePixmap::calculate_center_pixel(Track *track)
 404 {
 405         int data_h = track->data_h;
 406         int rect_audio = mwindow->preferences->rectify_audio;
 407         int center_pixel = !rect_audio ? data_h/2 : data_h;
 408         if( track->show_titles() )
 409                 center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
 410         return center_pixel;
 411 }
 412
 413 void ResourcePixmap::draw_audio_source(TrackCanvas *canvas, Edit *edit, int x, int w)
 414 {
 415         w++;
 416         Indexable *indexable = edit->get_source();
 417         int center_pixel = calculate_center_pixel(edit->track);
 418         int rect_audio = mwindow->preferences->rectify_audio;
 419         int data_h = edit->track->data_h;
 420         int zoom_y = mwindow->edl->local_session->zoom_y * data_h /
 421                         mwindow->edl->local_session->zoom_atrack;
 422         int64_t scale_y = !rect_audio ? zoom_y : zoom_y*2;
 423         int y_max = center_pixel + scale_y / 2 - 1;
 424
 425         double project_zoom = mwindow->edl->local_session->zoom_sample;
 426         FloatAutos *speed_autos = !edit->track->has_speed() ? 0 :
 427                 (FloatAutos *)edit->track->automation->autos[AUTOMATION_SPEED];
 428         int64_t edit_position = (x + pixmap_x - edit_x) * project_zoom;
 429         int64_t start_position = edit->startsource;
 430         start_position += !speed_autos ? edit_position :
 431                 speed_autos->automation_integral(edit->startproject, edit_position, PLAY_FORWARD);
 432         int64_t end_position = edit->startsource;
 433         edit_position = (x + w + pixmap_x - edit_x) * project_zoom;
 434         end_position += !speed_autos ? edit_position :
 435                 speed_autos->automation_integral(edit->startproject, edit_position, PLAY_FORWARD);
 436
 437         double session_sample_rate = mwindow->edl->session->sample_rate;
 438         double asset_over_session = (double)indexable->get_sample_rate() / session_sample_rate;
 439         start_position *= asset_over_session;
 440         end_position *= asset_over_session;
 441         int sample_size = end_position - start_position;
 442         if( sample_size < 0 ) sample_size = 0;
 443         int source_samples = sample_size + 1;
 444
 445 // Single sample zoom
 446         if( mwindow->edl->local_session->zoom_sample == 1 ) {
 447                 Samples *buffer = 0;
 448                 int result = 0;
 449                 canvas->set_color(mwindow->theme->audio_color);
 450
 451                 if( indexable->is_asset ) {
 452                         mwindow->gui->unlock_window();
 453                         File *source = mwindow->audio_cache->check_out(edit->asset, mwindow->edl);
 454                         mwindow->gui->lock_window("draw_audio_source");
 455
 456                         if( !source ) {
 457                                 printf(_("ResourcePixmap::draw_audio_source: failed to check out %s for drawing.\n"), edit->asset->path);
 458                                 return;
 459                         }
 460
 461                         source->set_audio_position(start_position);
 462                         source->set_channel(edit->channel);
 463                         buffer = new Samples(source_samples);
 464                         result = source->read_samples(buffer, source_samples);
 465                         mwindow->audio_cache->check_in(edit->asset);
 466                 }
 467                 else {
 468                         if( mwindow->gui->render_engine &&
 469                                 mwindow->gui->render_engine_id != indexable->id ) {
 470                                 delete mwindow->gui->render_engine;
 471                                 mwindow->gui->render_engine = 0;
 472                         }
 473
 474                         if( !mwindow->gui->render_engine ) {
 475                                 TransportCommand command;
 476                                 command.command = NORMAL_FWD;
 477                                 command.get_edl()->copy_all(edit->nested_edl);
 478                                 command.change_type = CHANGE_ALL;
 479                                 command.realtime = 0;
 480                                 mwindow->gui->render_engine = new RenderEngine(0,
 481                                         mwindow->preferences, 0, 0);
 482                                 mwindow->gui->render_engine_id = edit->nested_edl->id;
 483                                 mwindow->gui->render_engine->set_acache(mwindow->audio_cache);
 484                                 mwindow->gui->render_engine->arm_command(&command);
 485                         }
 486
 487                         if( mwindow->gui->render_engine->arender ) {
 488                                 Samples *buffers[MAX_CHANNELS];
 489                                 memset(buffers, 0, sizeof(buffers));
 490                                 int nch = indexable->get_audio_channels(), ch = edit->channel;
 491                                 for( int i=0; i<nch; ++i )
 492                                         buffers[i] = new Samples(source_samples);
 493                                 mwindow->gui->render_engine->arender->process_buffer(
 494                                         buffers, source_samples, start_position);
 495                                 for( int i=0; i<nch; ++i )
 496                                         if( i != ch ) delete buffers[i];
 497                                 buffer = buffers[ch];
 498                         }
 499                 }
 500
 501                 if( !result ) {
 502                         double *samples = buffer->get_data();
 503                         double sample = !rect_audio ? samples[0] : fabs(samples[0]);
 504                         int y1 = center_pixel - sample * scale_y / 2;
 505                         int y2 = CLIP(y1, 0, y_max);
 506
 507                         for( int x1=x; x1<w; ++x1 ) {
 508                                 int x2 = x1 + 1;
 509                                 edit_position = (x1 + pixmap_x - edit_x) * project_zoom;
 510                                 int64_t speed_position = edit->startsource;
 511                                 speed_position += !speed_autos ? edit_position :
 512                                         speed_autos->automation_integral(
 513                                                 edit->startproject, edit_position, PLAY_FORWARD);
 514                                 int j = speed_position * asset_over_session - start_position;
 515                                 CLAMP(j, 0, sample_size);
 516                                 int y0 = y2;
 517                                 sample = !rect_audio ? samples[j] : fabs(samples[j]);
 518                                 y1 = center_pixel - sample * scale_y / 2;
 519                                 y2 = CLIP(y1, 0, y_max);
 520 //printf("ResourcePixmap::draw_audio_source %d %d %d\n", __LINE__, y1, y2);
 521                                 if( !rect_audio )
 522                                         canvas->draw_bline(x1, y0, x2, y2, this);
 523                                 else
 524                                         canvas->draw_bline(x2, center_pixel, x2, y2, this);
 525                         }
 526                 }
 527
 528                 delete buffer;
 529         }
 530         else {
 531                 edit_position = (x + pixmap_x - edit_x) * project_zoom;
 532                 int64_t speed_position = edit->startsource;
 533                 speed_position += !speed_autos ? edit_position :
 534                         speed_autos->automation_integral(
 535                                 edit->startproject, edit_position, PLAY_FORWARD);
 536                 int64_t next_position = asset_over_session * speed_position;
 537 // Multiple sample zoom
 538                 int first_pixel = 1, prev_y1 = -1, prev_y2 = y_max;
 539                 canvas->set_color(mwindow->theme->audio_color);
 540                 ++x;
 541
 542 // Draw each pixel from the cache
 543 //printf("ResourcePixmap::draw_audio_source %d x=%d w=%d\n", __LINE__, x, w);
 544                 for( int x2=x+w; x<x2; ++x ) {
 545                         int64_t prev_position = next_position;
 546                         edit_position = (x + pixmap_x - edit_x) * project_zoom;
 547                         speed_position = edit->startsource;
 548                         speed_position += !speed_autos ? edit_position :
 549                                 speed_autos->automation_integral(
 550                                         edit->startproject, edit_position, PLAY_FORWARD);
 551                         next_position = speed_position * asset_over_session;
 552 // Starting sample of pixel relative to asset rate.
 553                         WaveCacheItem *item = mwindow->wave_cache->get_wave(indexable->id,
 554                                         edit->channel, prev_position, next_position);
 555                         if( item ) {
 556                                 double item_low = !rect_audio ? item->low : fabs(item->low);
 557 //printf("ResourcePixmap::draw_audio_source %d\n", __LINE__);
 558                                 int y_lo = (int)(center_pixel - item_low * scale_y / 2);
 559                                 int y1 = CLIP(y_lo, 0, y_max);
 560                                 double item_high = !rect_audio ? item->high : fabs(item->high);
 561                                 int y_hi = (int)(center_pixel - item_high * scale_y / 2);
 562                                 int y2 = CLIP(y_hi, 0, y_max);
 563                                 if( !first_pixel ) {
 564                                         y_lo = MIN(y1,prev_y2);
 565                                         y_hi = MAX(y2,prev_y1);
 566                                 }
 567                                 else {
 568                                         first_pixel = 0;
 569                                         y_lo = y1;  y_hi = y2;
 570                                 }
 571                                 prev_y1 = y1;  prev_y2 = y2;
 572                                 canvas->draw_line(x, !rect_audio ? y_lo : center_pixel, x, y_hi, this);
 573 //printf("ResourcePixmap::draw_audio_source %d %d %d %d\n", __LINE__, x, y1, y2);
 574                                 mwindow->wave_cache->unlock();
 575                         }
 576                         else {
 577 //printf("ResourcePixmap::draw_audio_source %d\n", __LINE__);
 578                                 gui->resource_thread->add_wave(this,
 579                                         canvas->pane->number, indexable, x,
 580                                         edit->channel, prev_position, next_position);
 581                                 first_pixel = 1;  prev_y1 = -1;  prev_y2 = y_max;
 582                         }
 583                 }
 584         }
 585
 586         canvas->test_timer();
 587 }
 588
 589 void ResourcePixmap::draw_wave(TrackCanvas *canvas,
 590                 int x, double high, double low)
 591 {
 592         int rect_audio = mwindow->preferences->rectify_audio;
 593         if( rect_audio ) { low = fabs(low);  high = fabs(high); }
 594         int top_pixel = !mwindow->edl->session->show_titles ? 0 :
 595                 mwindow->theme->get_image("title_bg_data")->get_h();
 596         int center_pixel = !rect_audio ? data_h/2 + top_pixel : data_h + top_pixel;
 597         int zoom_y = mwindow->edl->local_session->zoom_y * (int64_t)data_h /
 598                         mwindow->edl->local_session->zoom_atrack;
 599         int scale_y = !rect_audio ? zoom_y/2 : zoom_y;
 600         int bottom_pixel = top_pixel + data_h;
 601         int y1 = (int)(center_pixel - low * scale_y);
 602         int y2 = (int)(center_pixel - high * scale_y);
 603         CLAMP(y1, top_pixel, bottom_pixel);
 604         CLAMP(y2, top_pixel, bottom_pixel);
 605         canvas->set_color(mwindow->theme->audio_color);
 606         canvas->draw_line(x, !rect_audio ? y1 : bottom_pixel, x, y2, this);
 607 }
 608
 609
 610 void ResourcePixmap::draw_video_resource(TrackCanvas *canvas,
 611         Edit *edit, int64_t edit_x, int64_t edit_w, int64_t pixmap_x, int64_t pixmap_w,
 612         int refresh_x, int refresh_w, int mode)
 613 {
 614 //PRINT_TRACE
 615 //BC_Signals::dump_stack();
 616
 617 // pixels spanned by a picon
 618         int64_t picon_w = Units::round(edit->picon_w());
 619         int64_t picon_h = edit->picon_h();
 620 //      if( picon_w <= 0 || picon_w > edit_w ) return;
 621 // Don't draw video if picon is empty, or edit only hairline
 622         if( picon_w < 1 || edit_w < 2 ) return;
 623 // or bigger than edit and fills at less than 1.5 percent timeline
 624         if( picon_w > edit_w && edit_w < canvas->get_w()/64 ) return;
 625
 626 // Frames spanned by a picon
 627         double frame_w = edit->frame_w();
 628 // pixels spanned by a frame
 629         if( frame_w < picon_w ) frame_w = picon_w;
 630 // Current pixel relative to pixmap
 631         int y = 0;
 632         if( edit->track->show_titles() )
 633                 y += mwindow->theme->get_image("title_bg_data")->get_h();
 634
 635 // Frame in project touched by current pixel
 636         FloatAutos *speed_autos = !edit->track->has_speed() ? 0 :
 637                 (FloatAutos *)edit->track->automation->autos[AUTOMATION_SPEED];
 638         Indexable *indexable = edit->get_source();
 639         double session_sample_rate = mwindow->edl->session->sample_rate;
 640         double project_zoom = mwindow->edl->local_session->zoom_sample / session_sample_rate;
 641         int skip_frames = Units::to_int64(((int64_t)refresh_x + pixmap_x - edit_x) / frame_w);
 642         int x = Units::to_int64(skip_frames * frame_w) + edit_x - pixmap_x;
 643
 644 // Draw only cached frames
 645         while( x < refresh_x + refresh_w ) {
 646                 int64_t edit_position =
 647                         edit->track->to_units((x + pixmap_x - edit_x) * project_zoom, 0);
 648                 int64_t speed_position = edit->startsource;
 649                 speed_position += !speed_autos ? edit_position :
 650                          speed_autos->automation_integral(
 651                                 edit->startproject, edit_position, PLAY_FORWARD);
 652                 VFrame *picon_frame = indexable->id < 0 ? 0 :
 653                         mwindow->frame_cache->get_frame_ptr(speed_position, edit->channel,
 654                                 mwindow->edl->session->frame_rate, BC_RGB888,
 655                                 picon_w, picon_h, indexable->id);
 656                 int bg_color = gui->get_bg_color();
 657                 if( picon_frame ) {
 658                         VFrame *frame = picon_frame;
 659                         int color = mwindow->get_title_color(edit);
 660                         if( color ) {
 661                                 int alpha = (~color >> 24) & 0xff;
 662                                 frame = change_picon_alpha(picon_frame, alpha);
 663                                 gui->set_bg_color(color & 0xffffff);
 664                         }
 665                         draw_vframe(frame, x, y, picon_w, picon_h, 0, 0);
 666                         if( frame != picon_frame ) {
 667                                 delete frame;
 668                                 gui->set_bg_color(bg_color);
 669                         }
 670                         mwindow->frame_cache->unlock();
 671                 }
 672                 else if( mode != IGNORE_THREAD ) {
 673 // Set picon thread to draw in background
 674 // printf("ResourcePixmap::draw_video_resource %d %d %lld\n",
 675 // __LINE__, mwindow->frame_cache->total(), source_frame);
 676                         gui->resource_thread->add_picon(this, canvas->pane->number, x, y,
 677                                 picon_w, picon_h, mwindow->edl->session->frame_rate,
 678                                 speed_position, edit->channel, indexable);
 679                 }
 680                 x += frame_w;
 681                 canvas->test_timer();
 682         }
 683 }
 684
 685 #include "strack.h"
 686
 687 void ResourcePixmap::draw_subttl_resource(TrackCanvas *canvas, Edit *edit, int x, int w)
 688 {
 689         SEdit *sedit = (SEdit *)edit;
 690         char *text = sedit->get_text();
 691         if( !*text || w < xS(10) ) return;
 692         int data_h = edit->track->data_h, center_pixel = data_h/2;
 693         if( edit->track->show_titles() )
 694                 center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
 695         int x0 = edit_x;
 696         if( x0 < 0 ) x0 = -x0;
 697         int x1 = (int)(pixmap_x - x0 + x);
 698         int font = data_h >= yS(24) ? MEDIUMFONT : SMALLFONT, color = WHITE;
 699         int ascent = canvas->get_text_ascent(font);
 700         int y1 = center_pixel + ascent/2;
 701         if( y1 < 0 ) y1 = 0;
 702         canvas->set_font(font);
 703         canvas->set_color(color);
 704         canvas->draw_text(x1, y1, text, -1, this);
 705 }
 706
 707 void ResourcePixmap::dump()
 708 {
 709         printf("ResourcePixmap %p\n", this);
 710         printf(" edit %jx edit_x %jd pixmap_x %jd pixmap_w %jd visible %d\n",
 711                 edit_id, edit_x, pixmap_x, pixmap_w, visible);
 712 }
 713