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         VFrame *vfrm = frame();
  47         if( !vfrm ) return;
  48         int sx0 = 0, sx1 = sx0 + vt->view_w;
  49         int sy0 = 0, sy1 = sy0 + vt->view_h;
  50         int dx0 = x, dx1 = dx0 + vw;
  51         int dy0 = y, dy1 = dy0 + vh;
  52         if( (x=vt->draw_x0-dx0) > 0 ) { sx0 += (x*vt->view_w)/vw;  dx0 = vt->draw_x0; }
  53         if( (x=dx1-vt->draw_x1) > 0 ) { sx1 -= (x*vt->view_w)/vw;  dx1 = vt->draw_x1; }
  54         if( (y=vt->draw_y0-dy0) > 0 ) { sy0 += (y*vt->view_h)/vh;  dy0 = vt->draw_y0; }
  55         if( (y=dy1-vt->draw_y1) > 0 ) { sy1 -= (y*vt->view_h)/vh;  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 void VIconThread::
  63 set_drawing_area(int x0, int y0, int x1, int y1)
  64 {
  65         draw_x0 = x0;  draw_y0 = y0;
  66         draw_x1 = x1;  draw_y1 = y1;
  67 }
  68
  69 VIcon *VIconThread::low_vicon()
  70 {
  71         if( !t_heap.size() ) return 0;
  72         VIcon *vip = t_heap[0];
  73         remove_vicon(0);
  74         return vip;
  75 }
  76
  77 void VIconThread::remove_vicon(int i)
  78 {
  79         int sz = t_heap.size();
  80         for( int k; (k=2*(i+1)) < sz; i=k ) {
  81                 if( t_heap[k]->age > t_heap[k-1]->age ) --k;
  82                 t_heap[i] = t_heap[k];
  83         }
  84         VIcon *last = t_heap[--sz];
  85         t_heap.remove_number(sz);
  86         double age = last->age;
  87         for( int k; i>0 && age<t_heap[k=(i-1)/2]->age; i=k )
  88                 t_heap[i] = t_heap[k];
  89         t_heap[i] = last;
  90 }
  91
  92
  93 VIconThread::
  94 VIconThread(BC_WindowBase *wdw, int vw, int vh)
  95  : Thread(1, 0, 0)
  96 {
  97         this->wdw = wdw;
  98         this->view_win = 0;  this->vicon = 0;
  99         this->view_w = vw;   this->view_h = vh;
 100         this->viewing = 0;
 101         this->draw_x0 = 0;   this->draw_x1 = wdw->get_w();
 102         this->draw_y0 = 0;   this->draw_y1 = wdw->get_h();
 103         draw_lock = new Condition(0, "VIconThread::draw_lock", 1);
 104         timer = new Timer();
 105         this->refresh_rate = VICON_RATE;
 106         done = 0;
 107         interrupted = -1;
 108 }
 109
 110 VIconThread::
 111 ~VIconThread()
 112 {
 113         stop_drawing();
 114         done = 1;
 115         draw_lock->unlock();
 116         if( Thread::running() ) {
 117                 Thread::cancel();
 118         }
 119         Thread::join();
 120         t_heap.remove_all_objects();
 121         delete timer;
 122         delete draw_lock;
 123 }
 124
 125 void VIconThread::
 126 start_drawing()
 127 {
 128         wdw->lock_window("VIconThread::start_drawing");
 129         if( view_win )
 130                 wdw->set_active_subwindow(view_win);
 131         if( interrupted < 0 )
 132                 draw_lock->unlock();
 133         interrupted = 0;
 134         wdw->unlock_window();
 135 }
 136
 137 void VIconThread::
 138 stop_drawing()
 139 {
 140         wdw->lock_window("VIconThread::stop_drawing");
 141         set_view_popup(0);
 142         if( !interrupted )
 143                 interrupted = 1;
 144         wdw->unlock_window();
 145 }
 146
 147 int VIconThread::keypress_event(int key)
 148 {
 149         if( key != ESC ) return 0;
 150         set_view_popup(0);
 151         return 1;
 152 }
 153
 154 int ViewPopup::button_press_event()
 155 {
 156         vt->set_view_popup(0);
 157         return 1;
 158 }
 159
 160 bool VIconThread::
 161 visible(VIcon *vicon, int x, int y)
 162 {
 163         if( vicon->hidden ) return false;
 164         if( y+vicon->vh <= draw_y0 ) return false;
 165         if( y >= draw_y1 ) return false;
 166         if( x+vicon->vw <= draw_x0 ) return false;
 167         if( x >= draw_x1 ) return false;
 168         return true;
 169 }
 170
 171 int ViewPopup::keypress_event()
 172 {
 173         int key = get_keypress();
 174         return vt->keypress_event(key);
 175 }
 176 ViewPopup::ViewPopup(VIconThread *vt, VFrame *frame, int x, int y, int w, int h)
 177  : BC_Popup(vt->wdw, x, y, w, h, BLACK)
 178 {
 179         this->vt = vt;
 180 }
 181
 182 ViewPopup::~ViewPopup()
 183 {
 184         vt->wdw->set_active_subwindow(0);
 185 }
 186
 187 void ViewPopup::draw_vframe(VFrame *frame)
 188 {
 189         if( !frame ) return;
 190         BC_WindowBase::draw_vframe(frame, 0,0, get_w(),get_h());
 191 }
 192
 193 ViewPopup *VIconThread::new_view_window(VFrame *frame)
 194 {
 195         BC_WindowBase *parent = wdw->get_parent();
 196         XineramaScreenInfo *info = parent->get_xinerama_info(-1);
 197         int cx = info ? info->x_org + info->width/2 : parent->get_root_w(0)/2;
 198         int cy = info ? info->y_org + info->height/2 : parent->get_root_h(0)/2;
 199         int vx = viewing->get_vx(), rx = 0;
 200         int vy = viewing->get_vy(), ry = 0;
 201         wdw->get_root_coordinates(vx, vy, &rx, &ry);
 202         rx += (rx >= cx ? -view_w : viewing->vw);
 203         ry += (ry >= cy ? -view_h : viewing->vh);
 204         ViewPopup *vwin = new ViewPopup(this, frame, rx, ry, view_w, view_h);
 205         wdw->set_active_subwindow(vwin);
 206         return vwin;
 207 }
 208
 209 void VIconThread::
 210 reset_images()
 211 {
 212         for( int i=t_heap.size(); --i>=0; ) t_heap[i]->reset();
 213         timer->update();
 214         img_dirty = win_dirty = 0;
 215 }
 216
 217 void VIconThread::add_vicon(VIcon *vip)
 218 {
 219         double age = vip->age;
 220         int i = t_heap.size();  t_heap.append(vip);
 221         for( int k; i>0 && age<t_heap[(k=(i-1)/2)]->age; i=k )
 222                 t_heap[i] = t_heap[k];
 223         t_heap[i] = vip;
 224 }
 225
 226 int VIconThread::del_vicon(VIcon *&vicon)
 227 {
 228         int i = t_heap.size();
 229         while( --i >= 0 && t_heap[i] != vicon );
 230         if( i < 0 ) return 0;
 231         remove_vicon(i);
 232         delete vicon;  vicon = 0;
 233         return 1;
 234 }
 235
 236 void VIconThread::set_view_popup(VIcon *vicon)
 237 {
 238         if( !vicon && this->vicon )
 239                 this->vicon->stop_audio();
 240         this->vicon = vicon;
 241 }
 242
 243 int VIconThread::
 244 update_view()
 245 {
 246         delete view_win;  view_win = 0;
 247         if( (viewing=vicon) != 0 ) {
 248                 VFrame *frame = viewing->frame();
 249                 view_win = new_view_window(frame);
 250                 view_win->show_window();
 251                 vicon->start_audio();
 252         }
 253         wdw->set_active_subwindow(view_win);
 254         return 1;
 255 }
 256
 257
 258 void VIconThread::
 259 draw_images()
 260 {
 261         for( int i=0; i<t_heap.size(); ++i )
 262                 draw(t_heap[i]);
 263 }
 264
 265 void VIconThread::
 266 flash()
 267 {
 268         if( !img_dirty && !win_dirty ) return;
 269         if( img_dirty ) wdw->flash();
 270         if( win_dirty && view_win ) view_win->flash();
 271         win_dirty = img_dirty = 0;
 272 }
 273
 274 int VIconThread::
 275 draw(VIcon *vicon)
 276 {
 277         int x = vicon->get_vx(), y = vicon->get_vy();
 278         int draw_img = visible(vicon, x, y);
 279         int draw_win = view_win && viewing == vicon ? 1 : 0;
 280         if( !draw_img && !draw_win ) return 0;
 281         if( !vicon->frame() ) return 0;
 282         if( draw_img ) {
 283                 vicon->draw_vframe(this, wdw, x, y);
 284                 img_dirty = 1;
 285         }
 286         if( draw_win ) {
 287                 view_win->draw_vframe(vicon->frame());
 288                 win_dirty = 1;
 289         }
 290         return 1;
 291 }
 292
 293 void VIconThread::hide_vicons(int v)
 294 {
 295         for( int i=0; i<t_heap.size(); ++i ) {
 296                 t_heap[i]->hidden = v;
 297                 t_heap[i]->age = 0;
 298         }
 299 }
 300
 301 void VIconThread::
 302 run()
 303 {
 304         while(!done) {
 305                 draw_lock->lock("VIconThread::run 0");
 306                 if( done ) break;
 307                 wdw->lock_window("BC_WindowBase::run 1");
 308                 drawing_started();
 309                 reset_images();
 310                 int64_t seq_no = 0, now = 0;
 311                 int64_t draw_flash = 1000 / refresh_rate;
 312                 while( !interrupted ) {
 313                         if( viewing != vicon )
 314                                 update_view();
 315                         VIcon *next = low_vicon();
 316                         while( next && next->age < draw_flash ) {
 317                                 now = timer->get_difference();
 318                                 if( now >= draw_flash ) break;
 319                                 draw(next);
 320                                 if( !next->seq_no ) {
 321                                         next->cycle_start = now;
 322                                         if( next->playing_audio )
 323                                                 next->start_audio();
 324                                 }
 325                                 int64_t ref_no = (now - next->cycle_start) / 1000. * refresh_rate;
 326                                 int count = ref_no - next->seq_no;
 327                                 if( count < 1 ) count = 1;
 328                                 ref_no = next->seq_no + count;
 329                                 next->age =  next->cycle_start + 1000. * ref_no / refresh_rate;
 330                                 if( !next->set_seq_no(ref_no) )
 331                                         next->age = now + 1000.;
 332                                 add_vicon(next);
 333                                 next = low_vicon();
 334                         }
 335                         if( !next ) break;
 336                         add_vicon(next);
 337                         if( draw_flash < now+1 )
 338                                 draw_flash = now+1;
 339                         wdw->unlock_window();
 340                         while( !interrupted ) {
 341                                 now = timer->get_difference();
 342                                 int64_t ms = draw_flash - now;
 343                                 if( ms <= 0 ) break;
 344                                 if( ms > 100 ) ms = 100;
 345                                 Timer::delay(ms);
 346                         }
 347                         wdw->lock_window("BC_WindowBase::run 2");
 348                         now = timer->get_difference();
 349                         int64_t late = now - draw_flash;
 350                         if( late < 1000 ) flash();
 351                         int64_t ref_no = now / 1000. * refresh_rate;
 352                         int64_t count = ref_no - seq_no;
 353                         if( count < 1 ) count = 1;
 354                         seq_no += count;
 355                         draw_flash = seq_no * 1000. / refresh_rate;
 356                 }
 357                 if( viewing != vicon )
 358                         update_view();
 359                 drawing_stopped();
 360                 interrupted = -1;
 361                 wdw->unlock_window();
 362         }
 363 }
 364
 365
 366 void VIcon::init_audio(int audio_size)
 367 {
 368         this->audio_size = audio_size;
 369         audio_data = new uint8_t[audio_size];
 370         memset(audio_data, 0, audio_size);
 371 }
 372
 373 void VIcon::dump(const char *dir)
 374 {
 375         mkdir(dir,0777);
 376         for( int i=0; i<images.size(); ++i ) {
 377                 char fn[1024];  sprintf(fn,"%s/img%05d.png",dir,i);
 378                 printf("\r%s",fn);
 379                 VFrame *img = *images[i];
 380                 img->write_png(fn);
 381         }
 382         printf("\n");
 383 }
 384