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;
 112         this->viewing = 0;     this->solo = 0;
 113         this->draw_x0 = 0;     this->draw_x1 = wdw->get_w();
 114         this->draw_y0 = 0;     this->draw_y1 = wdw->get_h();
 115         draw_lock = new Condition(0, "VIconThread::draw_lock", 1);
 116         timer = new Timer();
 117         this->refresh_rate = VICON_RATE;
 118         this->draw_flash = 0;
 119         this->seq_no = 0;
 120         this->now = 0;
 121         done = 0;
 122         interrupted = -1;
 123         stop_age = 0;
 124 }
 125
 126 VIconThread::
 127 ~VIconThread()
 128 {
 129         stop_drawing();
 130         done = 1;
 131         draw_lock->unlock();
 132         if( Thread::running() ) {
 133                 Thread::cancel();
 134         }
 135         Thread::join();
 136         t_heap.remove_all_objects();
 137         delete timer;
 138         delete draw_lock;
 139 }
 140
 141 void VIconThread::
 142 start_drawing()
 143 {
 144         wdw->lock_window("VIconThread::start_drawing");
 145         if( view_win )
 146                 wdw->set_active_subwindow(view_win);
 147         if( interrupted < 0 )
 148                 draw_lock->unlock();
 149         timer->update();
 150         timer->subtract(-stop_age);
 151         interrupted = 0;
 152         wdw->unlock_window();
 153 }
 154
 155 void VIconThread::
 156 stop_drawing()
 157 {
 158         wdw->lock_window("VIconThread::stop_drawing");
 159         close_view_popup();
 160         if( !interrupted )
 161                 interrupted = 1;
 162         stop_age = timer->get_difference();
 163         wdw->unlock_window();
 164 }
 165
 166 void VIconThread::
 167 stop_viewing()
 168 {
 169         if( viewing ) {
 170                 viewing->stop_audio();
 171                 viewing = 0;
 172         }
 173 }
 174
 175 int VIconThread::keypress_event(int key)
 176 {
 177         if( key != ESC ) return 0;
 178         close_view_popup();
 179         return 1;
 180 }
 181
 182 bool VIconThread::
 183 visible(VIcon *vicon, int x, int y)
 184 {
 185         if( vicon->hidden ) return false;
 186         if( y+vicon->h <= draw_y0 ) return false;
 187         if( y >= draw_y1 ) return false;
 188         if( x+vicon->w <= draw_x0 ) return false;
 189         if( x >= draw_x1 ) return false;
 190         return true;
 191 }
 192
 193 int ViewPopup::keypress_event()
 194 {
 195         int key = get_keypress();
 196         return vt->keypress_event(key);
 197 }
 198
 199
 200 ViewPopup::ViewPopup(VIconThread *vt, int x, int y, int w, int h)
 201  : BC_Popup(vt->wdw, x, y, w, h, BLACK)
 202 {
 203         this->vt = vt;
 204 }
 205
 206 ViewPopup::~ViewPopup()
 207 {
 208         vt->wdw->set_active_subwindow(0);
 209 }
 210
 211 ViewPopup *VIconThread::new_view_window()
 212 {
 213         BC_WindowBase *parent = wdw->get_parent();
 214         XineramaScreenInfo *info = parent->get_xinerama_info(-1);
 215         int cx = info ? info->x_org + info->width/2 : parent->get_root_w(0)/2;
 216         int cy = info ? info->y_org + info->height/2 : parent->get_root_h(0)/2;
 217         int vx = viewing->get_vx(), rx = 0;
 218         int vy = viewing->get_vy(), ry = 0;
 219         wdw->get_root_coordinates(vx, vy, &rx, &ry);
 220         rx += (rx >= cx ? -view_w+viewing->w/4 : viewing->w-viewing->w/4);
 221         ry += (ry >= cy ? -view_h+viewing->h/4 : viewing->h-viewing->h/4);
 222         ViewPopup *vwin = new ViewPopup(this, rx, ry, view_w, view_h);
 223         wdw->set_active_subwindow(vwin);
 224         return vwin;
 225 }
 226
 227
 228 void VIconThread::
 229 reset_images()
 230 {
 231         for( int i=t_heap.size(); --i>=0; ) t_heap[i]->reset();
 232         timer->update();
 233         img_dirty = win_dirty = 0;
 234 }
 235
 236 void VIconThread::add_vicon(VIcon *vip)
 237 {
 238         double age = vip->age;
 239         int i = t_heap.size();  t_heap.append(vip);
 240         for( int k; i>0 && age<t_heap[(k=(i-1)/2)]->age; i=k )
 241                 t_heap[i] = t_heap[k];
 242         t_heap[i] = vip;
 243 }
 244
 245 int VIconThread::del_vicon(VIcon *vicon)
 246 {
 247         int i = t_heap.size();
 248         while( --i >= 0 && t_heap[i] != vicon );
 249         if( i < 0 ) return 0;
 250         remove_vicon(i);
 251         return 1;
 252 }
 253
 254 void ViewPopup::draw_vframe(VFrame *frame)
 255 {
 256         if( !frame ) return;
 257         BC_WindowBase::draw_vframe(frame, 0,0, get_w(),get_h());
 258 }
 259
 260 void VIconThread::set_view_popup(VIcon *vicon)
 261 {
 262         if( viewing == vicon && !this->vicon ) return;
 263         this->vicon = vicon;
 264         if( interrupted )
 265                 update_view(0);
 266
 267 }
 268
 269 void VIconThread::close_view_popup()
 270 {
 271         set_view_popup(0);
 272 }
 273
 274 int VIconThread::
 275 update_view(int do_audio)
 276 {
 277         if( viewing ) viewing->stop_audio();
 278         delete view_win;  view_win = 0;
 279         if( (viewing=vicon) != 0 ) {
 280                 view_win = new_view_window();
 281                 view_win->draw_vframe(viewing->frame());
 282                 view_win->flash(0);
 283                 view_win->show_window();
 284                 if( do_audio ) vicon->start_audio();
 285         }
 286         wdw->set_active_subwindow(view_win);
 287         return 1;
 288 }
 289
 290 int VIconThread::zoom_scale(int dir)
 291 {
 292         int view_h = this->view_h;
 293         view_h += dir*view_h/10 + dir;
 294         bclamp(view_h, 16,512);
 295         this->view_h = view_h;
 296         this->view_w = view_h * vw/vh;
 297         stop_viewing();
 298         return 1;
 299 }
 300
 301
 302 void VIconThread::
 303 draw_images()
 304 {
 305         for( int i=0; i<t_heap.size(); ++i )
 306                 draw(t_heap[i]);
 307 }
 308
 309 void VIconThread::
 310 flash()
 311 {
 312         if( !img_dirty && !win_dirty ) return;
 313         if( img_dirty ) wdw->flash();
 314         if( win_dirty && view_win ) view_win->flash();
 315         win_dirty = img_dirty = 0;
 316 }
 317
 318 int VIconThread::
 319 draw(VIcon *vicon)
 320 {
 321         int x = vicon->get_vx(), y = vicon->get_vy();
 322         int draw_img = visible(vicon, x, y);
 323         int draw_win = view_win && viewing == vicon ? 1 : 0;
 324         if( !draw_img && !draw_win ) return 0;
 325         if( !vicon->frame() ) return 0;
 326         if( draw_img ) {
 327                 vicon->draw_vframe(this, wdw, x, y);
 328                 img_dirty = 1;
 329         }
 330         if( draw_win ) {
 331                 view_win->draw_vframe(vicon->frame());
 332                 win_dirty = 1;
 333         }
 334         return 1;
 335 }
 336
 337 void VIconThread::hide_vicons(int v)
 338 {
 339         for( int i=0; i<t_heap.size(); ++i ) {
 340                 t_heap[i]->hidden = v;
 341                 t_heap[i]->age = 0;
 342         }
 343 }
 344
 345 int VIconThread::show_vicon(VIcon *next)
 346 {
 347         now = timer->get_difference();
 348         if( now >= draw_flash ) return 1;
 349         draw(next);
 350         if( !next->seq_no ) {
 351                 next->cycle_start = now;
 352                 if( next->playing_audio > 0 )
 353                         next->start_audio();
 354         }
 355         int64_t ref_no = (now - next->cycle_start) / 1000. * refresh_rate;
 356         int count = ref_no - next->seq_no;
 357         if( count < 1 ) count = 1;
 358         ref_no = next->seq_no + count;
 359         next->age =  next->cycle_start + 1000. * ref_no / refresh_rate;
 360         if( !next->set_seq_no(ref_no) )
 361                 next->age = now + 1000.;
 362         return 0;
 363 }
 364
 365 void VIconThread::
 366 run()
 367 {
 368         while(!done) {
 369                 draw_lock->lock("VIconThread::run 0");
 370                 if( done ) break;
 371                 wdw->lock_window("BC_WindowBase::run 1");
 372                 drawing_started();
 373                 reset_images();
 374                 draw_flash = 1000 / refresh_rate;
 375                 seq_no = 0;  now = 0;
 376                 while( !interrupted ) {
 377                         if( viewing != vicon )
 378                                 update_view();
 379                         if( !solo ) {
 380                                 VIcon *next = low_vicon();
 381                                 while( next && next->age < draw_flash ) {
 382                                         if( show_vicon(next) ) break;
 383                                         add_vicon(next);
 384                                         next = low_vicon();
 385                                 }
 386                                 if( !next ) break;
 387                                 add_vicon(next);
 388                                 if( draw_flash < now+1 )
 389                                         draw_flash = now+1;
 390                         }
 391                         else
 392                                 show_vicon(solo);
 393                         wdw->unlock_window();
 394                         while( !interrupted ) {
 395                                 now = timer->get_difference();
 396                                 int64_t ms = draw_flash - now;
 397                                 if( ms <= 0 ) break;
 398                                 if( ms > 100 ) ms = 100;
 399                                 Timer::delay(ms);
 400                         }
 401                         wdw->lock_window("BC_WindowBase::run 2");
 402                         now = timer->get_difference();
 403                         int64_t late = now - draw_flash;
 404                         if( late < 1000 ) flash();
 405                         int64_t ref_no = now / 1000. * refresh_rate;
 406                         int64_t count = ref_no - seq_no;
 407                         if( count < 1 ) count = 1;
 408                         seq_no += count;
 409                         draw_flash = seq_no * 1000. / refresh_rate;
 410                 }
 411                 if( viewing != vicon )
 412                         update_view();
 413                 drawing_stopped();
 414                 interrupted = -1;
 415                 wdw->unlock_window();
 416         }
 417 }
 418
 419
 420 void VIcon::init_audio(int audio_size)
 421 {
 422         this->audio_size = audio_size;
 423         audio_data = new uint8_t[audio_size];
 424         memset(audio_data, 0, audio_size);
 425 }
 426
 427 void VIcon::dump(const char *dir)
 428 {
 429         mkdir(dir,0777);
 430         for( int i=0; i<images.size(); ++i ) {
 431                 char fn[1024];  sprintf(fn,"%s/img%05d.png",dir,i);
 432                 printf("\r%s",fn);
 433                 VFrame *img = *images[i];
 434                 img->write_png(fn);
 435         }
 436         printf("\n");
 437 }
 438