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 vw, int vh, double rate)
  12 {
  13         this->vw = vw;
  14         this->vh = vh;
  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(BC_WindowBase *wdw, int x, int y)
  45 {
  46         wdw->draw_vframe(frame(), x,y, vw,vh);
  47 }
  48
  49 VIcon *VIconThread::low_vicon()
  50 {
  51         if( !t_heap.size() ) return 0;
  52         VIcon *vip = t_heap[0];
  53         remove_vicon(0);
  54         return vip;
  55 }
  56
  57 void VIconThread::remove_vicon(int i)
  58 {
  59         int sz = t_heap.size();
  60         for( int k; (k=2*(i+1)) < sz; i=k ) {
  61                 if( t_heap[k]->age > t_heap[k-1]->age ) --k;
  62                 t_heap[i] = t_heap[k];
  63         }
  64         VIcon *last = t_heap[--sz];
  65         t_heap.remove_number(sz);
  66         double age = last->age;
  67         for( int k; i>0 && age<t_heap[k=(i-1)/2]->age; i=k )
  68                 t_heap[i] = t_heap[k];
  69         t_heap[i] = last;
  70 }
  71
  72
  73 VIconThread::
  74 VIconThread(BC_WindowBase *wdw, int vw, int vh)
  75  : Thread(1, 0, 0)
  76 {
  77         this->wdw = wdw;
  78         this->view_win = 0;  this->vicon = 0;
  79         this->view_w = vw;   this->view_h = vh;
  80         this->viewing = 0;
  81         draw_lock = new Condition(0, "VIconThread::draw_lock", 1);
  82         timer = new Timer();
  83         this->refresh_rate = VICON_RATE;
  84         done = 0;
  85         interrupted = -1;
  86 }
  87
  88 VIconThread::
  89 ~VIconThread()
  90 {
  91         stop_drawing();
  92         done = 1;
  93         draw_lock->unlock();
  94         if( Thread::running() ) {
  95                 Thread::cancel();
  96         }
  97         Thread::join();
  98         t_heap.remove_all_objects();
  99         delete timer;
 100         delete draw_lock;
 101 }
 102
 103 void VIconThread::
 104 start_drawing()
 105 {
 106         wdw->lock_window("VIconThread::start_drawing");
 107         if( view_win )
 108                 wdw->set_active_subwindow(view_win);
 109         if( interrupted < 0 )
 110                 draw_lock->unlock();
 111         interrupted = 0;
 112         wdw->unlock_window();
 113 }
 114
 115 void VIconThread::
 116 stop_drawing()
 117 {
 118         wdw->lock_window("VIconThread::stop_drawing");
 119         set_view_popup(0);
 120         if( !interrupted )
 121                 interrupted = 1;
 122         wdw->unlock_window();
 123 }
 124
 125 int VIconThread::keypress_event(int key)
 126 {
 127         if( key != ESC ) return 0;
 128         set_view_popup(0);
 129         return 1;
 130 }
 131
 132 int ViewPopup::button_press_event()
 133 {
 134         vt->set_view_popup(0);
 135         return 1;
 136 }
 137
 138 bool VIconThread::
 139 visible(VIcon *vicon, int x, int y)
 140 {
 141         if( vicon->hidden ) return false;
 142         int y0 = 0;
 143         int my = y + vicon->vh;
 144         if( my <= y0 ) return false;
 145         int y1 = y0 + wdw->get_h();
 146         if( y >= y1 ) return false;
 147         int x0 = 0;
 148         int mx = x + vicon->vw;
 149         if( mx <= x0 ) return false;
 150         int x1 = x0 + wdw->get_w();
 151         if( x >= x1 ) return false;
 152         return true;
 153 }
 154
 155 int ViewPopup::keypress_event()
 156 {
 157         int key = get_keypress();
 158         return vt->keypress_event(key);
 159 }
 160 ViewPopup::ViewPopup(VIconThread *vt, VFrame *frame, int x, int y, int w, int h)
 161  : BC_Popup(vt->wdw, x, y, w, h, BLACK)
 162 {
 163         this->vt = vt;
 164 }
 165
 166 ViewPopup::~ViewPopup()
 167 {
 168         vt->wdw->set_active_subwindow(0);
 169 }
 170
 171 void ViewPopup::draw_vframe(VFrame *frame)
 172 {
 173         BC_WindowBase::draw_vframe(frame, 0,0, get_w(),get_h());
 174 }
 175
 176 ViewPopup *VIconThread::new_view_window(VFrame *frame)
 177 {
 178         int wx = viewing->get_vx() - view_w, rx = 0;
 179         int wy = viewing->get_vy() - view_h, ry = 0;
 180         wdw->get_root_coordinates(wx, wy, &rx, &ry);
 181         ViewPopup *vwin = new ViewPopup(this, frame, rx, ry, view_w, view_h);
 182         wdw->set_active_subwindow(vwin);
 183         return vwin;
 184 }
 185
 186 void VIconThread::
 187 reset_images()
 188 {
 189         for( int i=t_heap.size(); --i>=0; ) t_heap[i]->reset();
 190         timer->update();
 191         img_dirty = win_dirty = 0;
 192 }
 193
 194 void VIconThread::add_vicon(VIcon *vip)
 195 {
 196         double age = vip->age;
 197         int i = t_heap.size();  t_heap.append(vip);
 198         for( int k; i>0 && age<t_heap[(k=(i-1)/2)]->age; i=k )
 199                 t_heap[i] = t_heap[k];
 200         t_heap[i] = vip;
 201 }
 202
 203 int VIconThread::del_vicon(VIcon *&vicon)
 204 {
 205         int i = t_heap.size();
 206         while( --i >= 0 && t_heap[i] != vicon );
 207         if( i < 0 ) return 0;
 208         remove_vicon(i);
 209         delete vicon;  vicon = 0;
 210         return 1;
 211 }
 212
 213 void VIconThread::set_view_popup(VIcon *vicon)
 214 {
 215         if( !vicon && this->vicon )
 216                 this->vicon->stop_audio();
 217         this->vicon = vicon;
 218 }
 219
 220 int VIconThread::
 221 update_view()
 222 {
 223         delete view_win;  view_win = 0;
 224         if( (viewing=vicon) != 0 ) {
 225                 VFrame *frame = viewing->frame();
 226                 view_win = new_view_window(frame);
 227                 view_win->show_window();
 228                 vicon->start_audio();
 229         }
 230         wdw->set_active_subwindow(view_win);
 231         return 1;
 232 }
 233
 234
 235 void VIconThread::
 236 draw_images()
 237 {
 238         for( int i=0; i<t_heap.size(); ++i )
 239                 draw(t_heap[i]);
 240 }
 241
 242 void VIconThread::
 243 flash()
 244 {
 245         if( !img_dirty && !win_dirty ) return;
 246         if( img_dirty ) wdw->flash();
 247         if( win_dirty && view_win ) view_win->flash();
 248         win_dirty = img_dirty = 0;
 249 }
 250
 251 int VIconThread::
 252 draw(VIcon *vicon)
 253 {
 254         int x = vicon->get_vx(), y = vicon->get_vy();
 255         int draw_img = visible(vicon, x, y);
 256         int draw_win = view_win && viewing == vicon ? 1 : 0;
 257         if( !draw_img && !draw_win ) return 0;
 258         if( !vicon->frame() ) return 0;
 259         if( draw_img ) {
 260                 vicon->draw_vframe(wdw, x, y);
 261                 img_dirty = 1;
 262         }
 263         if( draw_win ) {
 264                 view_win->draw_vframe(vicon->frame());
 265                 win_dirty = 1;
 266         }
 267         return 1;
 268 }
 269
 270 void VIconThread::
 271 run()
 272 {
 273         while(!done) {
 274                 draw_lock->lock("VIconThread::run 0");
 275                 if( done ) break;
 276                 wdw->lock_window("BC_WindowBase::run 1");
 277                 drawing_started();
 278                 reset_images();
 279                 int64_t seq_no = 0, now = 0;
 280                 int64_t draw_flash = 1000 / refresh_rate;
 281                 while( !interrupted ) {
 282                         if( viewing != vicon )
 283                                 update_view();
 284                         VIcon *next = low_vicon();
 285                         while( next && next->age < draw_flash ) {
 286                                 now = timer->get_difference();
 287                                 if( now >= draw_flash ) break;
 288                                 draw(next);
 289                                 if( !next->seq_no ) {
 290                                         next->cycle_start = now;
 291                                         if( next->playing_audio )
 292                                                 next->start_audio();
 293                                 }
 294                                 int64_t ref_no = (now - next->cycle_start) / 1000. * refresh_rate;
 295                                 int count = ref_no - next->seq_no;
 296                                 if( count < 1 ) count = 1;
 297                                 ref_no = next->seq_no + count;
 298                                 next->age =  next->cycle_start + 1000. * ref_no / refresh_rate;
 299                                 if( !next->set_seq_no(ref_no) )
 300                                         next->age = now + 1000.;
 301                                 add_vicon(next);
 302                                 next = low_vicon();
 303                         }
 304                         if( !next ) break;
 305                         add_vicon(next);
 306                         if( draw_flash < now+1 )
 307                                 draw_flash = now+1;
 308                         wdw->unlock_window();
 309                         while( !interrupted ) {
 310                                 now = timer->get_difference();
 311                                 int64_t ms = draw_flash - now;
 312                                 if( ms <= 0 ) break;
 313                                 if( ms > 100 ) ms = 100;
 314                                 Timer::delay(ms);
 315                         }
 316                         wdw->lock_window("BC_WindowBase::run 2");
 317                         now = timer->get_difference();
 318                         int64_t late = now - draw_flash;
 319                         if( late < 1000 ) flash();
 320                         int64_t ref_no = now / 1000. * refresh_rate;
 321                         int64_t count = ref_no - seq_no;
 322                         if( count < 1 ) count = 1;
 323                         seq_no += count;
 324                         draw_flash = seq_no * 1000. / refresh_rate;
 325                 }
 326                 if( viewing != vicon )
 327                         update_view();
 328                 drawing_stopped();
 329                 interrupted = -1;
 330                 wdw->unlock_window();
 331         }
 332 }
 333
 334
 335 void VIcon::init_audio(int audio_size)
 336 {
 337         this->audio_size = audio_size;
 338         audio_data = new uint8_t[audio_size];
 339         memset(audio_data, 0, audio_size);
 340 }
 341
 342 void VIcon::dump(const char *dir)
 343 {
 344         mkdir(dir,0777);
 345         for( int i=0; i<images.size(); ++i ) {
 346                 char fn[1024];  sprintf(fn,"%s/img%05d.png",dir,i);
 347                 printf("\r%s",fn);
 348                 VFrame *img = *images[i];
 349                 img->write_png(fn);
 350         }
 351         printf("\n");
 352 }
 353