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(VIconThread *vt, BC_WindowBase *wdw, int x, int y)
  45 {
  46         int sx0 = 0, sx1 = sx0 + vt->view_w;
  47         int sy0 = 0, sy1 = sy0 + vt->view_h;
  48         int dx0 = x, dx1 = dx0 + vw;
  49         int dy0 = y, dy1 = dy0 + vh;
  50         if( (x=vt->draw_x0-dx0) > 0 ) { sx0 += (x*vt->view_w)/vw;  dx0 = vt->draw_x0; }
  51         if( (x=dx1-vt->draw_x1) > 0 ) { sx1 -= (x*vt->view_w)/vw;  dx1 = vt->draw_x1; }
  52         if( (y=vt->draw_y0-dy0) > 0 ) { sy0 += (y*vt->view_h)/vh;  dy0 = vt->draw_y0; }
  53         if( (y=dy1-vt->draw_y1) > 0 ) { sy1 -= (y*vt->view_h)/vh;  dy1 = vt->draw_y1; }
  54         int sw = sx1 - sx0, sh = sy1 - sy0;
  55         int dw = dx1 - dx0, dh = dy1 - dy0;
  56         if( dw > 0 && dh > 0 && sw > 0 && sh > 0 )
  57                 wdw->draw_vframe(frame(), dx0,dy0, dw,dh, sx0,sy0, sw,sh);
  58 }
  59
  60 void VIconThread::
  61 set_drawing_area(int x0, int y0, int x1, int y1)
  62 {
  63         draw_x0 = x0;  draw_y0 = y0;
  64         draw_x1 = x1;  draw_y1 = y1;
  65 }
  66
  67 VIcon *VIconThread::low_vicon()
  68 {
  69         if( !t_heap.size() ) return 0;
  70         VIcon *vip = t_heap[0];
  71         remove_vicon(0);
  72         return vip;
  73 }
  74
  75 void VIconThread::remove_vicon(int i)
  76 {
  77         int sz = t_heap.size();
  78         for( int k; (k=2*(i+1)) < sz; i=k ) {
  79                 if( t_heap[k]->age > t_heap[k-1]->age ) --k;
  80                 t_heap[i] = t_heap[k];
  81         }
  82         VIcon *last = t_heap[--sz];
  83         t_heap.remove_number(sz);
  84         double age = last->age;
  85         for( int k; i>0 && age<t_heap[k=(i-1)/2]->age; i=k )
  86                 t_heap[i] = t_heap[k];
  87         t_heap[i] = last;
  88 }
  89
  90
  91 VIconThread::
  92 VIconThread(BC_WindowBase *wdw, int vw, int vh)
  93  : Thread(1, 0, 0)
  94 {
  95         this->wdw = wdw;
  96         this->view_win = 0;  this->vicon = 0;
  97         this->view_w = vw;   this->view_h = vh;
  98         this->viewing = 0;
  99         this->draw_x0 = 0;   this->draw_x1 = wdw->get_w();
 100         this->draw_y0 = 0;   this->draw_y1 = wdw->get_h();
 101         draw_lock = new Condition(0, "VIconThread::draw_lock", 1);
 102         timer = new Timer();
 103         this->refresh_rate = VICON_RATE;
 104         done = 0;
 105         interrupted = -1;
 106 }
 107
 108 VIconThread::
 109 ~VIconThread()
 110 {
 111         stop_drawing();
 112         done = 1;
 113         draw_lock->unlock();
 114         if( Thread::running() ) {
 115                 Thread::cancel();
 116         }
 117         Thread::join();
 118         t_heap.remove_all_objects();
 119         delete timer;
 120         delete draw_lock;
 121 }
 122
 123 void VIconThread::
 124 start_drawing()
 125 {
 126         wdw->lock_window("VIconThread::start_drawing");
 127         if( view_win )
 128                 wdw->set_active_subwindow(view_win);
 129         if( interrupted < 0 )
 130                 draw_lock->unlock();
 131         interrupted = 0;
 132         wdw->unlock_window();
 133 }
 134
 135 void VIconThread::
 136 stop_drawing()
 137 {
 138         wdw->lock_window("VIconThread::stop_drawing");
 139         set_view_popup(0);
 140         if( !interrupted )
 141                 interrupted = 1;
 142         wdw->unlock_window();
 143 }
 144
 145 int VIconThread::keypress_event(int key)
 146 {
 147         if( key != ESC ) return 0;
 148         set_view_popup(0);
 149         return 1;
 150 }
 151
 152 int ViewPopup::button_press_event()
 153 {
 154         vt->set_view_popup(0);
 155         return 1;
 156 }
 157
 158 bool VIconThread::
 159 visible(VIcon *vicon, int x, int y)
 160 {
 161         if( vicon->hidden ) return false;
 162         if( y+vicon->vh <= draw_y0 ) return false;
 163         if( y >= draw_y1 ) return false;
 164         if( x+vicon->vw <= draw_x0 ) return false;
 165         if( x >= draw_x1 ) return false;
 166         return true;
 167 }
 168
 169 int ViewPopup::keypress_event()
 170 {
 171         int key = get_keypress();
 172         return vt->keypress_event(key);
 173 }
 174 ViewPopup::ViewPopup(VIconThread *vt, VFrame *frame, int x, int y, int w, int h)
 175  : BC_Popup(vt->wdw, x, y, w, h, BLACK)
 176 {
 177         this->vt = vt;
 178 }
 179
 180 ViewPopup::~ViewPopup()
 181 {
 182         vt->wdw->set_active_subwindow(0);
 183 }
 184
 185 void ViewPopup::draw_vframe(VFrame *frame)
 186 {
 187         BC_WindowBase::draw_vframe(frame, 0,0, get_w(),get_h());
 188 }
 189
 190 ViewPopup *VIconThread::new_view_window(VFrame *frame)
 191 {
 192         BC_WindowBase *parent = wdw->get_parent();
 193         XineramaScreenInfo *info = parent->get_xinerama_info(-1);
 194         int cx = info ? info->x_org + info->width/2 : parent->get_root_w(0)/2;
 195         int cy = info ? info->y_org + info->height/2 : parent->get_root_h(0)/2;
 196         int vx = viewing->get_vx(), rx = 0;
 197         int vy = viewing->get_vy(), ry = 0;
 198         wdw->get_root_coordinates(vx, vy, &rx, &ry);
 199         rx += (rx >= cx ? -view_w : viewing->vw);
 200         ry += (ry >= cy ? -view_h : viewing->vh);
 201         ViewPopup *vwin = new ViewPopup(this, frame, rx, ry, view_w, view_h);
 202         wdw->set_active_subwindow(vwin);
 203         return vwin;
 204 }
 205
 206 void VIconThread::
 207 reset_images()
 208 {
 209         for( int i=t_heap.size(); --i>=0; ) t_heap[i]->reset();
 210         timer->update();
 211         img_dirty = win_dirty = 0;
 212 }
 213
 214 void VIconThread::add_vicon(VIcon *vip)
 215 {
 216         double age = vip->age;
 217         int i = t_heap.size();  t_heap.append(vip);
 218         for( int k; i>0 && age<t_heap[(k=(i-1)/2)]->age; i=k )
 219                 t_heap[i] = t_heap[k];
 220         t_heap[i] = vip;
 221 }
 222
 223 int VIconThread::del_vicon(VIcon *&vicon)
 224 {
 225         int i = t_heap.size();
 226         while( --i >= 0 && t_heap[i] != vicon );
 227         if( i < 0 ) return 0;
 228         remove_vicon(i);
 229         delete vicon;  vicon = 0;
 230         return 1;
 231 }
 232
 233 void VIconThread::set_view_popup(VIcon *vicon)
 234 {
 235         if( !vicon && this->vicon )
 236                 this->vicon->stop_audio();
 237         this->vicon = vicon;
 238 }
 239
 240 int VIconThread::
 241 update_view()
 242 {
 243         delete view_win;  view_win = 0;
 244         if( (viewing=vicon) != 0 ) {
 245                 VFrame *frame = viewing->frame();
 246                 view_win = new_view_window(frame);
 247                 view_win->show_window();
 248                 vicon->start_audio();
 249         }
 250         wdw->set_active_subwindow(view_win);
 251         return 1;
 252 }
 253
 254
 255 void VIconThread::
 256 draw_images()
 257 {
 258         for( int i=0; i<t_heap.size(); ++i )
 259                 draw(t_heap[i]);
 260 }
 261
 262 void VIconThread::
 263 flash()
 264 {
 265         if( !img_dirty && !win_dirty ) return;
 266         if( img_dirty ) wdw->flash();
 267         if( win_dirty && view_win ) view_win->flash();
 268         win_dirty = img_dirty = 0;
 269 }
 270
 271 int VIconThread::
 272 draw(VIcon *vicon)
 273 {
 274         int x = vicon->get_vx(), y = vicon->get_vy();
 275         int draw_img = visible(vicon, x, y);
 276         int draw_win = view_win && viewing == vicon ? 1 : 0;
 277         if( !draw_img && !draw_win ) return 0;
 278         if( !vicon->frame() ) return 0;
 279         if( draw_img ) {
 280                 vicon->draw_vframe(this, wdw, x, y);
 281                 img_dirty = 1;
 282         }
 283         if( draw_win ) {
 284                 view_win->draw_vframe(vicon->frame());
 285                 win_dirty = 1;
 286         }
 287         return 1;
 288 }
 289
 290 void VIconThread::
 291 run()
 292 {
 293         while(!done) {
 294                 draw_lock->lock("VIconThread::run 0");
 295                 if( done ) break;
 296                 wdw->lock_window("BC_WindowBase::run 1");
 297                 drawing_started();
 298                 reset_images();
 299                 int64_t seq_no = 0, now = 0;
 300                 int64_t draw_flash = 1000 / refresh_rate;
 301                 while( !interrupted ) {
 302                         if( viewing != vicon )
 303                                 update_view();
 304                         VIcon *next = low_vicon();
 305                         while( next && next->age < draw_flash ) {
 306                                 now = timer->get_difference();
 307                                 if( now >= draw_flash ) break;
 308                                 draw(next);
 309                                 if( !next->seq_no ) {
 310                                         next->cycle_start = now;
 311                                         if( next->playing_audio )
 312                                                 next->start_audio();
 313                                 }
 314                                 int64_t ref_no = (now - next->cycle_start) / 1000. * refresh_rate;
 315                                 int count = ref_no - next->seq_no;
 316                                 if( count < 1 ) count = 1;
 317                                 ref_no = next->seq_no + count;
 318                                 next->age =  next->cycle_start + 1000. * ref_no / refresh_rate;
 319                                 if( !next->set_seq_no(ref_no) )
 320                                         next->age = now + 1000.;
 321                                 add_vicon(next);
 322                                 next = low_vicon();
 323                         }
 324                         if( !next ) break;
 325                         add_vicon(next);
 326                         if( draw_flash < now+1 )
 327                                 draw_flash = now+1;
 328                         wdw->unlock_window();
 329                         while( !interrupted ) {
 330                                 now = timer->get_difference();
 331                                 int64_t ms = draw_flash - now;
 332                                 if( ms <= 0 ) break;
 333                                 if( ms > 100 ) ms = 100;
 334                                 Timer::delay(ms);
 335                         }
 336                         wdw->lock_window("BC_WindowBase::run 2");
 337                         now = timer->get_difference();
 338                         int64_t late = now - draw_flash;
 339                         if( late < 1000 ) flash();
 340                         int64_t ref_no = now / 1000. * refresh_rate;
 341                         int64_t count = ref_no - seq_no;
 342                         if( count < 1 ) count = 1;
 343                         seq_no += count;
 344                         draw_flash = seq_no * 1000. / refresh_rate;
 345                 }
 346                 if( viewing != vicon )
 347                         update_view();
 348                 drawing_stopped();
 349                 interrupted = -1;
 350                 wdw->unlock_window();
 351         }
 352 }
 353
 354
 355 void VIcon::init_audio(int audio_size)
 356 {
 357         this->audio_size = audio_size;
 358         audio_data = new uint8_t[audio_size];
 359         memset(audio_data, 0, audio_size);
 360 }
 361
 362 void VIcon::dump(const char *dir)
 363 {
 364         mkdir(dir,0777);
 365         for( int i=0; i<images.size(); ++i ) {
 366                 char fn[1024];  sprintf(fn,"%s/img%05d.png",dir,i);
 367                 printf("\r%s",fn);
 368                 VFrame *img = *images[i];
 369                 img->write_png(fn);
 370         }
 371         printf("\n");
 372 }
 373