cinelerra-5.1/guicast/vicon.C

   1 #include "vicon.h"
   2
   3 #include "bctimer.h"
   4 #include "bcwindow.h"
   5 #include "bccolors.h"
   6 #include "keys.h"
   7 #include "mutex.h"
   8 #include "condition.h"
   9
  10 VIcon::
  11 VIcon(int w, int h, double rate)
  12 {
  13         this->w = w;
  14         this->h = h;
  15         this->frame_rate = rate;
  16
  17         cycle_start = 0;
  18         age = 0;
  19         seq_no = 0;
  20         in_use = 1;
  21         hidden = 0;
  22         audio_data = 0;
  23         audio_size = 0;
  24         playing_audio = 0;
  25 }
  26
  27 VIcon::
  28 ~VIcon()
  29 {
  30         clear_images();
  31         delete [] audio_data;
  32 }
  33
  34 void VIcon::
  35 add_image(VFrame *frm, int ww, int hh, int vcmdl)
  36 {
  37         VIFrame *vifrm = new VIFrame(ww, hh, vcmdl);
  38         VFrame *img = *vifrm;
  39         img->transfer_from(frm);
  40         images.append(vifrm);
  41 }
  42
  43 void VIcon::
  44 draw_vframe(VIconThread *vt, BC_WindowBase *wdw, int x, int y)
  45 {
  46         VFrame *vfrm = frame();
  47         if( !vfrm ) return;
  48         int sx0 = 0, sx1 = sx0 + vt->vw;
  49         int sy0 = 0, sy1 = sy0 + vt->vh;
  50         int dx0 = x, dx1 = dx0 + w;
  51         int dy0 = y, dy1 = dy0 + h;
  52         if( (x=vt->draw_x0-dx0) > 0 ) { sx0 += (x*vt->vw)/w;  dx0 = vt->draw_x0; }
  53         if( (x=dx1-vt->draw_x1) > 0 ) { sx1 -= (x*vt->vw)/w;  dx1 = vt->draw_x1; }
  54         if( (y=vt->draw_y0-dy0) > 0 ) { sy0 += (y*vt->vh)/h;  dy0 = vt->draw_y0; }
  55         if( (y=dy1-vt->draw_y1) > 0 ) { sy1 -= (y*vt->vh)/h;  dy1 = vt->draw_y1; }
  56         int sw = sx1 - sx0, sh = sy1 - sy0;
  57         int dw = dx1 - dx0, dh = dy1 - dy0;
  58         if( dw > 0 && dh > 0 && sw > 0 && sh > 0 )
  59                 wdw->draw_vframe(vfrm, dx0,dy0, dw,dh, sx0,sy0, sw,sh);
  60 }
  61
  62
  63 int VIconThread::cursor_inside(int x, int y)
  64 {
  65         if( !viewing ) return 0;
  66         int vx = viewing->get_vx();
  67         if( x < vx || x >= vx+vw ) return 0;
  68         int vy = viewing->get_vy();
  69         if( y < vy || y >= vy+vh ) return 0;
  70         return 1;
  71 }
  72
  73 void VIconThread::
  74 set_drawing_area(int x0, int y0, int x1, int y1)
  75 {
  76         draw_x0 = x0;  draw_y0 = y0;
  77         draw_x1 = x1;  draw_y1 = y1;
  78 }
  79
  80 VIcon *VIconThread::low_vicon()
  81 {
  82         if( !t_heap.size() ) return 0;
  83         VIcon *vip = t_heap[0];
  84         remove_vicon(0);
  85         return vip;
  86 }
  87
  88 void VIconThread::remove_vicon(int i)
  89 {
  90         if( t_heap[i] == solo ) solo = 0;
  91         int sz = t_heap.size();
  92         for( int k; (k=2*(i+1)) < sz; i=k ) {
  93                 if( t_heap[k]->age > t_heap[k-1]->age ) --k;
  94                 t_heap[i] = t_heap[k];
  95         }
  96         VIcon *last = t_heap[--sz];
  97         t_heap.remove_number(sz);
  98         double age = last->age;
  99         for( int k; i>0 && age<t_heap[k=(i-1)/2]->age; i=k )
 100                 t_heap[i] = t_heap[k];
 101         t_heap[i] = last;
 102 }
 103
 104
 105 VIconThread::
 106 VIconThread(BC_WindowBase *wdw, int vw, int vh, int view_w, int view_h)
 107  : Thread(1, 0, 0)
 108 {
 109         this->wdw = wdw;
 110         this->vw = vw;         this->vh = vh;
 111         this->view_w = view_w; this->view_h = view_h;
 112         this->view_win = 0;    this->vicon = 0;
 113         this->viewing = 0;     this->solo = 0;
 114         this->draw_x0 = 0;     this->draw_x1 = wdw->get_w();
 115         this->draw_y0 = 0;     this->draw_y1 = wdw->get_h();
 116         draw_lock = new Condition(0, "VIconThread::draw_lock", 1);
 117         timer = new Timer();
 118         this->refresh_rate = VICON_RATE;
 119         this->draw_flash = 0;
 120         this->seq_no = 0;
 121         this->now = 0;
 122         done = 0;
 123         interrupted = -1;
 124         stop_age = 0;
 125 }
 126
 127 VIconThread::
 128 ~VIconThread()
 129 {
 130         stop_drawing();
 131         done = 1;
 132         draw_lock->unlock();
 133         if( Thread::running() ) {
 134                 Thread::cancel();
 135         }
 136         Thread::join();
 137         t_heap.remove_all_objects();
 138         delete timer;
 139         delete draw_lock;
 140 }
 141
 142 void VIconThread::
 143 start_drawing()
 144 {
 145         wdw->lock_window("VIconThread::start_drawing");
 146         if( view_win )
 147                 wdw->set_active_subwindow(view_win);
 148         if( interrupted < 0 )
 149                 draw_lock->unlock();
 150         timer->update();
 151         timer->subtract(-stop_age);
 152         interrupted = 0;
 153         wdw->unlock_window();
 154 }
 155
 156 void VIconThread::
 157 stop_drawing()
 158 {
 159         wdw->lock_window("VIconThread::stop_drawing");
 160         close_view_popup();
 161         if( !interrupted )
 162                 interrupted = 1;
 163         stop_age = timer->get_difference();
 164         wdw->unlock_window();
 165 }
 166
 167 void VIconThread::
 168 stop_viewing()
 169 {
 170         if( viewing ) {
 171                 viewing->stop_audio();
 172                 viewing = 0;
 173         }
 174 }
 175
 176 int VIconThread::keypress_event(int key)
 177 {
 178         if( key != ESC ) return 0;
 179         close_view_popup();
 180         return 1;
 181 }
 182
 183 bool VIconThread::
 184 visible(VIcon *vicon, int x, int y)
 185 {
 186         if( vicon->hidden ) return false;
 187         if( y+vicon->h <= draw_y0 ) return false;
 188         if( y >= draw_y1 ) return false;
 189         if( x+vicon->w <= draw_x0 ) return false;
 190         if( x >= draw_x1 ) return false;
 191         return true;
 192 }
 193
 194 int ViewPopup::keypress_event()
 195 {
 196         int key = get_keypress();
 197         return vt->keypress_event(key);
 198 }
 199
 200
 201 ViewPopup::ViewPopup(VIconThread *vt, int x, int y, int w, int h)
 202  : BC_Popup(vt->wdw, x, y, w, h, BLACK)
 203 {
 204         this->vt = vt;
 205 }
 206
 207 ViewPopup::~ViewPopup()
 208 {
 209         vt->wdw->set_active_subwindow(0);
 210 }
 211
 212 ViewPopup *VIconThread::new_view_window()
 213 {
 214         BC_WindowBase *parent = wdw->get_parent();
 215         XineramaScreenInfo *info = parent->get_xinerama_info(-1);
 216         int cx = info ? info->x_org + info->width/2 : parent->get_root_w(0)/2;
 217         int cy = info ? info->y_org + info->height/2 : parent->get_root_h(0)/2;
 218         int vx = viewing->get_vx(), rx = 0;
 219         int vy = viewing->get_vy(), ry = 0;
 220         wdw->get_root_coordinates(vx, vy, &rx, &ry);
 221         rx += (rx >= cx ? -view_w+viewing->w/4 : viewing->w-viewing->w/4);
 222         ry += (ry >= cy ? -view_h+viewing->h/4 : viewing->h-viewing->h/4);
 223         ViewPopup *vwin = new ViewPopup(this, rx, ry, view_w, view_h);
 224         wdw->set_active_subwindow(vwin);
 225         return vwin;
 226 }
 227
 228
 229 void VIconThread::
 230 reset_images()
 231 {
 232         for( int i=t_heap.size(); --i>=0; ) t_heap[i]->reset();
 233         timer->update();
 234         img_dirty = win_dirty = 0;
 235 }
 236
 237 void VIconThread::add_vicon(VIcon *vip)
 238 {
 239         double age = vip->age;
 240         int i = t_heap.size();  t_heap.append(vip);
 241         for( int k; i>0 && age<t_heap[(k=(i-1)/2)]->age; i=k )
 242                 t_heap[i] = t_heap[k];
 243         t_heap[i] = vip;
 244 }
 245
 246 int VIconThread::del_vicon(VIcon *vicon)
 247 {
 248         int i = t_heap.size();
 249         while( --i >= 0 && t_heap[i] != vicon );
 250         if( i < 0 ) return 0;
 251         remove_vicon(i);
 252         return 1;
 253 }
 254
 255 void ViewPopup::draw_vframe(VFrame *frame)
 256 {
 257         if( !frame ) return;
 258         BC_WindowBase::draw_vframe(frame, 0,0, get_w(),get_h());
 259 }
 260
 261 void VIconThread::set_view_popup(VIcon *vicon)
 262 {
 263         if( viewing == vicon && !this->vicon ) return;
 264         this->vicon = vicon;
 265         if( interrupted )
 266                 update_view(0);
 267
 268 }
 269
 270 void VIconThread::close_view_popup()
 271 {
 272         set_view_popup(0);
 273 }
 274
 275 int VIconThread::
 276 update_view(int do_audio)
 277 {
 278         if( viewing ) viewing->stop_audio();
 279         delete view_win;  view_win = 0;
 280         if( (viewing=vicon) != 0 ) {
 281                 view_win = new_view_window();
 282                 view_win->draw_vframe(viewing->frame());
 283                 view_win->flash(0);
 284                 view_win->show_window();
 285                 if( do_audio ) vicon->start_audio();
 286         }
 287         wdw->set_active_subwindow(view_win);
 288         return 1;
 289 }
 290
 291 int VIconThread::zoom_scale(int dir)
 292 {
 293         int view_h = this->view_h;
 294         view_h += dir*view_h/10 + dir;
 295         bclamp(view_h, 16,512);
 296         this->view_h = view_h;
 297         this->view_w = view_h * vw/vh;
 298         stop_viewing();
 299         return 1;
 300 }
 301
 302
 303 void VIconThread::
 304 draw_images()
 305 {
 306         for( int i=0; i<t_heap.size(); ++i )
 307                 draw(t_heap[i]);
 308 }
 309
 310 void VIconThread::
 311 flash()
 312 {
 313         if( !img_dirty && !win_dirty ) return;
 314         if( img_dirty ) wdw->flash();
 315         if( win_dirty && view_win ) view_win->flash();
 316         win_dirty = img_dirty = 0;
 317 }
 318
 319 int VIconThread::
 320 draw(VIcon *vicon)
 321 {
 322         int x = vicon->get_vx(), y = vicon->get_vy();
 323         int draw_img = visible(vicon, x, y);
 324         int draw_win = view_win && viewing == vicon ? 1 : 0;
 325         if( !draw_img && !draw_win ) return 0;
 326         if( !vicon->frame() ) return 0;
 327         if( draw_img ) {
 328                 vicon->draw_vframe(this, wdw, x, y);
 329                 img_dirty = 1;
 330         }
 331         if( draw_win ) {
 332                 view_win->draw_vframe(vicon->frame());
 333                 win_dirty = 1;
 334         }
 335         return 1;
 336 }
 337
 338 void VIconThread::hide_vicons(int v)
 339 {
 340         for( int i=0; i<t_heap.size(); ++i ) {
 341                 t_heap[i]->hidden = v;
 342                 t_heap[i]->age = 0;
 343         }
 344 }
 345
 346 int VIconThread::show_vicon(VIcon *next)
 347 {
 348         now = timer->get_difference();
 349         if( now >= draw_flash ) return 1;
 350         draw(next);
 351         if( !next->seq_no ) {
 352                 next->cycle_start = now;
 353                 if( next->playing_audio > 0 )
 354                         next->start_audio();
 355         }
 356         int64_t ref_no = (now - next->cycle_start) / 1000. * refresh_rate;
 357         int count = ref_no - next->seq_no;
 358         if( count < 1 ) count = 1;
 359         ref_no = next->seq_no + count;
 360         next->age =  next->cycle_start + 1000. * ref_no / refresh_rate;
 361         if( !next->set_seq_no(ref_no) )
 362                 next->age = now + 1000.;
 363         return 0;
 364 }
 365
 366 void VIconThread::
 367 run()
 368 {
 369         while(!done) {
 370                 draw_lock->lock("VIconThread::run 0");
 371                 if( done ) break;
 372                 wdw->lock_window("BC_WindowBase::run 1");
 373                 drawing_started();
 374                 reset_images();
 375                 draw_flash = 1000 / refresh_rate;
 376                 seq_no = 0;  now = 0;
 377                 while( !interrupted ) {
 378                         if( viewing != vicon )
 379                                 update_view();
 380                         if( !solo ) {
 381                                 VIcon *next = low_vicon();
 382                                 while( next && next->age < draw_flash ) {
 383                                         if( show_vicon(next) ) break;
 384                                         add_vicon(next);
 385                                         next = low_vicon();
 386                                 }
 387                                 if( !next ) break;
 388                                 add_vicon(next);
 389                                 if( draw_flash < now+1 )
 390                                         draw_flash = now+1;
 391                         }
 392                         else
 393                                 show_vicon(solo);
 394                         wdw->unlock_window();
 395                         while( !interrupted ) {
 396                                 now = timer->get_difference();
 397                                 int64_t ms = draw_flash - now;
 398                                 if( ms <= 0 ) break;
 399                                 if( ms > 100 ) ms = 100;
 400                                 Timer::delay(ms);
 401                         }
 402                         wdw->lock_window("BC_WindowBase::run 2");
 403                         now = timer->get_difference();
 404                         int64_t late = now - draw_flash;
 405                         if( late < 1000 ) flash();
 406                         int64_t ref_no = now / 1000. * refresh_rate;
 407                         int64_t count = ref_no - seq_no;
 408                         if( count < 1 ) count = 1;
 409                         seq_no += count;
 410                         draw_flash = seq_no * 1000. / refresh_rate;
 411                 }
 412                 if( viewing != vicon )
 413                         update_view();
 414                 drawing_stopped();
 415                 interrupted = -1;
 416                 wdw->unlock_window();
 417         }
 418 }
 419
 420
 421 void VIcon::init_audio(int audio_size)
 422 {
 423         this->audio_size = audio_size;
 424         audio_data = new uint8_t[audio_size];
 425         memset(audio_data, 0, audio_size);
 426 }
 427
 428 void VIcon::dump(const char *dir)
 429 {
 430         mkdir(dir,0777);
 431         for( int i=0; i<images.size(); ++i ) {
 432                 char fn[1024];  sprintf(fn,"%s/img%05d.png",dir,i);
 433                 printf("\r%s",fn);
 434                 VFrame *img = *images[i];
 435                 img->write_png(fn);
 436         }
 437         printf("\n");
 438 }
 439