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