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         int sz = t_heap.size();
  91         for( int k; (k=2*(i+1)) < sz; i=k ) {
  92                 if( t_heap[k]->age > t_heap[k-1]->age ) --k;
  93                 t_heap[i] = t_heap[k];
  94         }
  95         VIcon *last = t_heap[--sz];
  96         t_heap.remove_number(sz);
  97         double age = last->age;
  98         for( int k; i>0 && age<t_heap[k=(i-1)/2]->age; i=k )
  99                 t_heap[i] = t_heap[k];
 100         t_heap[i] = last;
 101 }
 102
 103
 104 VIconThread::
 105 VIconThread(BC_WindowBase *wdw, int vw, int vh, int view_w, int view_h)
 106  : Thread(1, 0, 0)
 107 {
 108         this->wdw = wdw;
 109         this->vw = vw;         this->vh = vh;
 110         this->view_w = view_w; this->view_h = view_h;
 111         this->view_win = 0;    this->vicon = 0;    this->viewing = 0;
 112         this->draw_x0 = 0;     this->draw_x1 = wdw->get_w();
 113         this->draw_y0 = 0;     this->draw_y1 = wdw->get_h();
 114         draw_lock = new Condition(0, "VIconThread::draw_lock", 1);
 115         timer = new Timer();
 116         this->refresh_rate = VICON_RATE;
 117         done = 0;
 118         interrupted = -1;
 119         stop_age = 0;
 120 }
 121
 122 VIconThread::
 123 ~VIconThread()
 124 {
 125         stop_drawing();
 126         done = 1;
 127         draw_lock->unlock();
 128         if( Thread::running() ) {
 129                 Thread::cancel();
 130         }
 131         Thread::join();
 132         t_heap.remove_all_objects();
 133         delete timer;
 134         delete draw_lock;
 135 }
 136
 137 void VIconThread::
 138 start_drawing()
 139 {
 140         wdw->lock_window("VIconThread::start_drawing");
 141         if( view_win )
 142                 wdw->set_active_subwindow(view_win);
 143         if( interrupted < 0 )
 144                 draw_lock->unlock();
 145         timer->update();
 146         timer->subtract(-stop_age);
 147         interrupted = 0;
 148         wdw->unlock_window();
 149 }
 150
 151 void VIconThread::
 152 stop_drawing()
 153 {
 154         wdw->lock_window("VIconThread::stop_drawing");
 155         close_view_popup();
 156         if( !interrupted )
 157                 interrupted = 1;
 158         stop_age = timer->get_difference();
 159         wdw->unlock_window();
 160 }
 161
 162 void VIconThread::
 163 stop_viewing()
 164 {
 165         if( viewing ) {
 166                 viewing->stop_audio();
 167                 viewing = 0;
 168         }
 169 }
 170
 171 int VIconThread::keypress_event(int key)
 172 {
 173         if( key != ESC ) return 0;
 174         close_view_popup();
 175         return 1;
 176 }
 177
 178 bool VIconThread::
 179 visible(VIcon *vicon, int x, int y)
 180 {
 181         if( vicon->hidden ) return false;
 182         if( y+vicon->h <= draw_y0 ) return false;
 183         if( y >= draw_y1 ) return false;
 184         if( x+vicon->w <= draw_x0 ) return false;
 185         if( x >= draw_x1 ) return false;
 186         return true;
 187 }
 188
 189 int ViewPopup::keypress_event()
 190 {
 191         int key = get_keypress();
 192         return vt->keypress_event(key);
 193 }
 194
 195
 196 ViewPopup::ViewPopup(VIconThread *vt, int x, int y, int w, int h)
 197  : BC_Popup(vt->wdw, x, y, w, h, BLACK)
 198 {
 199         this->vt = vt;
 200 }
 201
 202 ViewPopup::~ViewPopup()
 203 {
 204         vt->wdw->set_active_subwindow(0);
 205 }
 206
 207 ViewPopup *VIconThread::new_view_window()
 208 {
 209         BC_WindowBase *parent = wdw->get_parent();
 210         XineramaScreenInfo *info = parent->get_xinerama_info(-1);
 211         int cx = info ? info->x_org + info->width/2 : parent->get_root_w(0)/2;
 212         int cy = info ? info->y_org + info->height/2 : parent->get_root_h(0)/2;
 213         int vx = viewing->get_vx(), rx = 0;
 214         int vy = viewing->get_vy(), ry = 0;
 215         wdw->get_root_coordinates(vx, vy, &rx, &ry);
 216         rx += (rx >= cx ? -view_w+viewing->w/4 : viewing->w-viewing->w/4);
 217         ry += (ry >= cy ? -view_h+viewing->h/4 : viewing->h-viewing->h/4);
 218         ViewPopup *vwin = new ViewPopup(this, rx, ry, view_w, view_h);
 219         wdw->set_active_subwindow(vwin);
 220         return vwin;
 221 }
 222
 223 int ViewPopup::zoom_scale(int dir)
 224 {
 225         int view_h = vt->view_h + dir*vt->view_h/10 + dir;
 226         bclamp(view_h, 16,512);
 227         vt->view_h = view_h;
 228         vt->view_w = view_h * vt->vw/vt->vh;
 229         vt->stop_viewing();
 230         return 1;
 231 }
 232
 233
 234 void VIconThread::
 235 reset_images()
 236 {
 237         for( int i=t_heap.size(); --i>=0; ) t_heap[i]->reset();
 238         timer->update();
 239         img_dirty = win_dirty = 0;
 240 }
 241
 242 void VIconThread::add_vicon(VIcon *vip)
 243 {
 244         double age = vip->age;
 245         int i = t_heap.size();  t_heap.append(vip);
 246         for( int k; i>0 && age<t_heap[(k=(i-1)/2)]->age; i=k )
 247                 t_heap[i] = t_heap[k];
 248         t_heap[i] = vip;
 249 }
 250
 251 int VIconThread::del_vicon(VIcon *vicon)
 252 {
 253         int i = t_heap.size();
 254         while( --i >= 0 && t_heap[i] != vicon );
 255         if( i < 0 ) return 0;
 256         remove_vicon(i);
 257         return 1;
 258 }
 259
 260 void ViewPopup::draw_vframe(VFrame *frame)
 261 {
 262         if( !frame ) return;
 263         BC_WindowBase::draw_vframe(frame, 0,0, get_w(),get_h());
 264 }
 265
 266 void VIconThread::set_view_popup(VIcon *vicon)
 267 {
 268         this->vicon = vicon;
 269 }
 270
 271 void VIconThread::close_view_popup()
 272 {
 273         set_view_popup(0);
 274 }
 275
 276 int VIconThread::
 277 update_view()
 278 {
 279         if( viewing ) viewing->stop_audio();
 280         delete view_win;  view_win = 0;
 281         if( (viewing=vicon) != 0 ) {
 282                 view_win = new_view_window();
 283                 view_win->draw_vframe(viewing->frame());
 284                 view_win->flash(0);
 285                 view_win->show_window();
 286                 vicon->start_audio();
 287         }
 288         wdw->set_active_subwindow(view_win);
 289         return 1;
 290 }
 291
 292
 293 void VIconThread::
 294 draw_images()
 295 {
 296         for( int i=0; i<t_heap.size(); ++i )
 297                 draw(t_heap[i]);
 298 }
 299
 300 void VIconThread::
 301 flash()
 302 {
 303         if( !img_dirty && !win_dirty ) return;
 304         if( img_dirty ) wdw->flash();
 305         if( win_dirty && view_win ) view_win->flash();
 306         win_dirty = img_dirty = 0;
 307 }
 308
 309 int VIconThread::
 310 draw(VIcon *vicon)
 311 {
 312         int x = vicon->get_vx(), y = vicon->get_vy();
 313         int draw_img = visible(vicon, x, y);
 314         int draw_win = view_win && viewing == vicon ? 1 : 0;
 315         if( !draw_img && !draw_win ) return 0;
 316         if( !vicon->frame() ) return 0;
 317         if( draw_img ) {
 318                 vicon->draw_vframe(this, wdw, x, y);
 319                 img_dirty = 1;
 320         }
 321         if( draw_win ) {
 322                 view_win->draw_vframe(vicon->frame());
 323                 win_dirty = 1;
 324         }
 325         return 1;
 326 }
 327
 328 void VIconThread::hide_vicons(int v)
 329 {
 330         for( int i=0; i<t_heap.size(); ++i ) {
 331                 t_heap[i]->hidden = v;
 332                 t_heap[i]->age = 0;
 333         }
 334 }
 335
 336 void VIconThread::
 337 run()
 338 {
 339         while(!done) {
 340                 draw_lock->lock("VIconThread::run 0");
 341                 if( done ) break;
 342                 wdw->lock_window("BC_WindowBase::run 1");
 343                 drawing_started();
 344                 reset_images();
 345                 int64_t seq_no = 0, now = 0;
 346                 int64_t draw_flash = 1000 / refresh_rate;
 347                 while( !interrupted ) {
 348                         if( viewing != vicon )
 349                                 update_view();
 350                         VIcon *next = low_vicon();
 351                         while( next && next->age < draw_flash ) {
 352                                 now = timer->get_difference();
 353                                 if( now >= draw_flash ) break;
 354                                 draw(next);
 355                                 if( !next->seq_no ) {
 356                                         next->cycle_start = now;
 357                                         if( next->playing_audio > 0 )
 358                                                 next->start_audio();
 359                                 }
 360                                 int64_t ref_no = (now - next->cycle_start) / 1000. * refresh_rate;
 361                                 int count = ref_no - next->seq_no;
 362                                 if( count < 1 ) count = 1;
 363                                 ref_no = next->seq_no + count;
 364                                 next->age =  next->cycle_start + 1000. * ref_no / refresh_rate;
 365                                 if( !next->set_seq_no(ref_no) )
 366                                         next->age = now + 1000.;
 367                                 add_vicon(next);
 368                                 next = low_vicon();
 369                         }
 370                         if( !next ) break;
 371                         add_vicon(next);
 372                         if( draw_flash < now+1 )
 373                                 draw_flash = now+1;
 374                         wdw->unlock_window();
 375                         while( !interrupted ) {
 376                                 now = timer->get_difference();
 377                                 int64_t ms = draw_flash - now;
 378                                 if( ms <= 0 ) break;
 379                                 if( ms > 100 ) ms = 100;
 380                                 Timer::delay(ms);
 381                         }
 382                         wdw->lock_window("BC_WindowBase::run 2");
 383                         now = timer->get_difference();
 384                         int64_t late = now - draw_flash;
 385                         if( late < 1000 ) flash();
 386                         int64_t ref_no = now / 1000. * refresh_rate;
 387                         int64_t count = ref_no - seq_no;
 388                         if( count < 1 ) count = 1;
 389                         seq_no += count;
 390                         draw_flash = seq_no * 1000. / refresh_rate;
 391                 }
 392                 if( viewing != vicon )
 393                         update_view();
 394                 drawing_stopped();
 395                 interrupted = -1;
 396                 wdw->unlock_window();
 397         }
 398 }
 399
 400
 401 void VIcon::init_audio(int audio_size)
 402 {
 403         this->audio_size = audio_size;
 404         audio_data = new uint8_t[audio_size];
 405         memset(audio_data, 0, audio_size);
 406 }
 407
 408 void VIcon::dump(const char *dir)
 409 {
 410         mkdir(dir,0777);
 411         for( int i=0; i<images.size(); ++i ) {
 412                 char fn[1024];  sprintf(fn,"%s/img%05d.png",dir,i);
 413                 printf("\r%s",fn);
 414                 VFrame *img = *images[i];
 415                 img->write_png(fn);
 416         }
 417         printf("\n");
 418 }
 419