lib/gdi/grc.cpp

   1 #include <unistd.h>
   2 #include <lib/gdi/grc.h>
   3 #include <lib/gdi/font.h>
   4 #include <lib/base/init.h>
   5 #include <lib/base/init_num.h>
   6
   7 #ifndef SYNC_PAINT
   8 void *gRC::thread_wrapper(void *ptr)
   9 {
  10         return ((gRC*)ptr)->thread();
  11 }
  12 #endif
  13
  14 gRC *gRC::instance=0;
  15
  16 gRC::gRC(): rp(0), wp(0)
  17 #ifdef SYNC_PAINT
  18 ,m_notify_pump(eApp, 0)
  19 #else
  20 ,m_notify_pump(eApp, 1)
  21 #endif
  22 {
  23         ASSERT(!instance);
  24         instance=this;
  25         CONNECT(m_notify_pump.recv_msg, gRC::recv_notify);
  26 #ifndef SYNC_PAINT
  27         pthread_mutex_init(&mutex, 0);
  28         pthread_cond_init(&cond, 0);
  29         int res = pthread_create(&the_thread, 0, thread_wrapper, this);
  30         if (res)
  31                 eFatal("RC thread couldn't be created");
  32         else
  33                 eDebug("RC thread created successfully");
  34 #endif
  35         m_spinner_enabled = 0;
  36 }
  37
  38 DEFINE_REF(gRC);
  39
  40 gRC::~gRC()
  41 {
  42         instance=0;
  43
  44         gOpcode o;
  45         o.opcode=gOpcode::shutdown;
  46         submit(o);
  47 #ifndef SYNC_PAINT
  48         eDebug("waiting for gRC thread shutdown");
  49         pthread_join(the_thread, 0);
  50         eDebug("gRC thread has finished");
  51 #endif
  52 }
  53
  54 void gRC::submit(const gOpcode &o)
  55 {
  56         while(1)
  57         {
  58 #ifndef SYNC_PAINT
  59                 pthread_mutex_lock(&mutex);
  60 #endif
  61                 int tmp=wp+1;
  62                 if ( tmp == MAXSIZE )
  63                         tmp=0;
  64                 if ( tmp == rp )
  65                 {
  66 #ifndef SYNC_PAINT
  67                         pthread_cond_signal(&cond);  // wakeup gdi thread
  68                         pthread_mutex_unlock(&mutex);
  69 #else
  70                         thread();
  71 #endif
  72                         //printf("render buffer full...\n");
  73                         //fflush(stdout);
  74                         usleep(1000);  // wait 1 msec
  75                         continue;
  76                 }
  77                 int free=rp-wp;
  78                 if ( free <= 0 )
  79                         free+=MAXSIZE;
  80                 queue[wp++]=o;
  81                 if ( wp == MAXSIZE )
  82                         wp = 0;
  83                 if (o.opcode==gOpcode::flush||o.opcode==gOpcode::shutdown||o.opcode==gOpcode::notify)
  84 #ifndef SYNC_PAINT
  85                         pthread_cond_signal(&cond);  // wakeup gdi thread
  86                 pthread_mutex_unlock(&mutex);
  87 #else
  88                         thread(); // paint
  89 #endif
  90                 break;
  91         }
  92 }
  93
  94 void *gRC::thread()
  95 {
  96         int need_notify = 0;
  97 #ifndef SYNC_PAINT
  98         while (1)
  99         {
 100 #else
 101         while (rp != wp)
 102         {
 103 #endif
 104 #ifndef SYNC_PAINT
 105                 pthread_mutex_lock(&mutex);
 106 #endif
 107                 if ( rp != wp )
 108                 {
 109                                 /* make sure the spinner is not displayed when we something is painted */
 110                         disableSpinner();
 111
 112                         gOpcode o(queue[rp++]);
 113                         if ( rp == MAXSIZE )
 114                                 rp=0;
 115 #ifndef SYNC_PAINT
 116                         pthread_mutex_unlock(&mutex);
 117 #endif
 118                         if (o.opcode==gOpcode::shutdown)
 119                                 break;
 120                         else if (o.opcode==gOpcode::notify)
 121                                 need_notify = 1;
 122                         else
 123                         {
 124                                 o.dc->exec(&o);
 125                                 // o.dc is a gDC* filled with grabref... so we must release it here
 126                                 o.dc->Release();
 127                         }
 128                 }
 129                 else
 130                 {
 131                         if (need_notify)
 132                         {
 133                                 need_notify = 0;
 134                                 m_notify_pump.send(1);
 135                         }
 136 #ifndef SYNC_PAINT
 137                         while(rp == wp)
 138                         {
 139
 140                                         /* when the main thread is non-idle for a too long time without any display output,
 141                                            we want to display a spinner. */
 142
 143                                 struct timeval time;
 144                                 struct timespec timeout;
 145                                 gettimeofday(&time, NULL);
 146                                 timeout.tv_sec = time.tv_sec;
 147                                 timeout.tv_nsec = time.tv_usec * 1000;
 148
 149                                 if (m_spinner_enabled)
 150                                         timeout.tv_nsec += 100*1000*1000;
 151                                 else
 152                                         timeout.tv_nsec += 500*1000*1000;
 153
 154                                         /* yes, this is required. */
 155                                 if (timeout.tv_nsec > 1000*1000*1000)
 156                                 {
 157                                         timeout.tv_nsec -= 1000*1000*1000;
 158                                         timeout.tv_sec++;
 159                                 }
 160
 161                                 int idle = 1;
 162
 163                                 if (pthread_cond_timedwait(&cond, &mutex, &timeout) == ETIMEDOUT)
 164                                 {
 165                                         if (eApp && !eApp->isIdle())
 166                                                 idle = 0;
 167                                 }
 168
 169                                 pthread_mutex_unlock(&mutex);
 170
 171                                 if (!idle)
 172                                 {
 173                                         if (!m_spinner_enabled)
 174                                                 eDebug("main thread is non-idle! display spinner!");
 175                                         enableSpinner();
 176                                 } else
 177                                         disableSpinner();
 178                         }
 179 #endif
 180                 }
 181         }
 182 #ifndef SYNC_PAINT
 183         pthread_exit(0);
 184 #endif
 185         return 0;
 186 }
 187
 188 void gRC::recv_notify(const int &i)
 189 {
 190         notify();
 191 }
 192
 193 gRC *gRC::getInstance()
 194 {
 195         return instance;
 196 }
 197
 198 void gRC::enableSpinner()
 199 {
 200         if (!m_spinner_dc)
 201         {
 202                 eDebug("no spinner DC!");
 203                 return;
 204         }
 205
 206         gOpcode o;
 207         o.opcode = m_spinner_enabled ? gOpcode::incrementSpinner : gOpcode::enableSpinner;
 208         m_spinner_dc->exec(&o);
 209         m_spinner_enabled = 1;
 210
 211 }
 212
 213 void gRC::disableSpinner()
 214 {
 215         if (!m_spinner_enabled)
 216                 return;
 217
 218         if (!m_spinner_dc)
 219         {
 220                 eDebug("no spinner DC!");
 221                 return;
 222         }
 223
 224         m_spinner_enabled = 0;
 225
 226         gOpcode o;
 227         o.opcode = gOpcode::disableSpinner;
 228         m_spinner_dc->exec(&o);
 229 }
 230
 231 static int gPainter_instances;
 232
 233 gPainter::gPainter(gDC *dc, eRect rect): m_dc(dc), m_rc(gRC::getInstance())
 234 {
 235 //      ASSERT(!gPainter_instances);
 236         gPainter_instances++;
 237 //      begin(rect);
 238 }
 239
 240 gPainter::~gPainter()
 241 {
 242         end();
 243         gPainter_instances--;
 244 }
 245
 246 void gPainter::setBackgroundColor(const gColor &color)
 247 {
 248         if ( m_dc->islocked() )
 249                 return;
 250         gOpcode o;
 251         o.opcode = gOpcode::setBackgroundColor;
 252         o.dc = m_dc.grabRef();
 253         o.parm.setColor = new gOpcode::para::psetColor;
 254         o.parm.setColor->color = color;
 255
 256         m_rc->submit(o);
 257 }
 258
 259 void gPainter::setForegroundColor(const gColor &color)
 260 {
 261         if ( m_dc->islocked() )
 262                 return;
 263         gOpcode o;
 264         o.opcode = gOpcode::setForegroundColor;
 265         o.dc = m_dc.grabRef();
 266         o.parm.setColor = new gOpcode::para::psetColor;
 267         o.parm.setColor->color = color;
 268
 269         m_rc->submit(o);
 270 }
 271
 272 void gPainter::setBackgroundColor(const gRGB &color)
 273 {
 274         if ( m_dc->islocked() )
 275                 return;
 276         gOpcode o;
 277         o.opcode = gOpcode::setBackgroundColorRGB;
 278         o.dc = m_dc.grabRef();
 279         o.parm.setColorRGB = new gOpcode::para::psetColorRGB;
 280         o.parm.setColorRGB->color = color;
 281
 282         m_rc->submit(o);
 283 }
 284
 285 void gPainter::setForegroundColor(const gRGB &color)
 286 {
 287         if ( m_dc->islocked() )
 288                 return;
 289         gOpcode o;
 290         o.opcode = gOpcode::setForegroundColorRGB;
 291         o.dc = m_dc.grabRef();
 292         o.parm.setColorRGB = new gOpcode::para::psetColorRGB;
 293         o.parm.setColorRGB->color = color;
 294
 295         m_rc->submit(o);
 296 }
 297
 298 void gPainter::setFont(gFont *font)
 299 {
 300         if ( m_dc->islocked() )
 301                 return;
 302         gOpcode o;
 303         o.opcode = gOpcode::setFont;
 304         o.dc = m_dc.grabRef();
 305         font->AddRef();
 306         o.parm.setFont = new gOpcode::para::psetFont;
 307         o.parm.setFont->font = font;
 308
 309         m_rc->submit(o);
 310 }
 311
 312 void gPainter::renderText(const eRect &pos, const std::string &string, int flags)
 313 {
 314         if ( m_dc->islocked() )
 315                 return;
 316         gOpcode o;
 317         o.opcode=gOpcode::renderText;
 318         o.dc = m_dc.grabRef();
 319         o.parm.renderText = new gOpcode::para::prenderText;
 320         o.parm.renderText->area = pos;
 321         o.parm.renderText->text = string.empty()?0:strdup(string.c_str());
 322         o.parm.renderText->flags = flags;
 323         m_rc->submit(o);
 324 }
 325
 326 void gPainter::renderPara(eTextPara *para, ePoint offset)
 327 {
 328         if ( m_dc->islocked() )
 329                 return;
 330         gOpcode o;
 331         o.opcode=gOpcode::renderPara;
 332         o.dc = m_dc.grabRef();
 333         o.parm.renderPara = new gOpcode::para::prenderPara;
 334         o.parm.renderPara->offset = offset;
 335
 336         para->AddRef();
 337         o.parm.renderPara->textpara = para;
 338         m_rc->submit(o);
 339 }
 340
 341 void gPainter::fill(const eRect &area)
 342 {
 343         if ( m_dc->islocked() )
 344                 return;
 345         gOpcode o;
 346         o.opcode=gOpcode::fill;
 347
 348         o.dc = m_dc.grabRef();
 349         o.parm.fill = new gOpcode::para::pfillRect;
 350         o.parm.fill->area = area;
 351         m_rc->submit(o);
 352 }
 353
 354 void gPainter::fill(const gRegion &region)
 355 {
 356         if ( m_dc->islocked() )
 357                 return;
 358         gOpcode o;
 359         o.opcode=gOpcode::fillRegion;
 360
 361         o.dc = m_dc.grabRef();
 362         o.parm.fillRegion = new gOpcode::para::pfillRegion;
 363         o.parm.fillRegion->region = region;
 364         m_rc->submit(o);
 365 }
 366
 367 void gPainter::clear()
 368 {
 369         if ( m_dc->islocked() )
 370                 return;
 371         gOpcode o;
 372         o.opcode=gOpcode::clear;
 373         o.dc = m_dc.grabRef();
 374         o.parm.fill = new gOpcode::para::pfillRect;
 375         o.parm.fill->area = eRect();
 376         m_rc->submit(o);
 377 }
 378
 379 void gPainter::blit(gPixmap *pixmap, ePoint pos, const eRect &clip, int flags)
 380 {
 381         if ( m_dc->islocked() )
 382                 return;
 383         gOpcode o;
 384
 385         ASSERT(pixmap);
 386
 387         o.opcode=gOpcode::blit;
 388         o.dc = m_dc.grabRef();
 389         pixmap->AddRef();
 390         o.parm.blit  = new gOpcode::para::pblit;
 391         o.parm.blit->pixmap = pixmap;
 392         o.parm.blit->position = pos;
 393         o.parm.blit->clip = clip;
 394         o.parm.blit->flags=flags;
 395         m_rc->submit(o);
 396 }
 397
 398
 399 void gPainter::setPalette(gRGB *colors, int start, int len)
 400 {
 401         if ( m_dc->islocked() )
 402                 return;
 403         gOpcode o;
 404         o.opcode=gOpcode::setPalette;
 405         o.dc = m_dc.grabRef();
 406         gPalette *p=new gPalette;
 407
 408         o.parm.setPalette = new gOpcode::para::psetPalette;
 409         p->data=new gRGB[len];
 410
 411         memcpy(p->data, colors, len*sizeof(gRGB));
 412         p->start=start;
 413         p->colors=len;
 414         o.parm.setPalette->palette = p;
 415         m_rc->submit(o);
 416 }
 417
 418 void gPainter::setPalette(gPixmap *source)
 419 {
 420         ASSERT(source);
 421         setPalette(source->surface->clut.data, source->surface->clut.start, source->surface->clut.colors);
 422 }
 423
 424 void gPainter::mergePalette(gPixmap *target)
 425 {
 426         if ( m_dc->islocked() )
 427                 return;
 428         gOpcode o;
 429         o.opcode = gOpcode::mergePalette;
 430         o.dc = m_dc.grabRef();
 431         target->AddRef();
 432         o.parm.mergePalette = new gOpcode::para::pmergePalette;
 433         o.parm.mergePalette->target = target;
 434         m_rc->submit(o);
 435 }
 436
 437 void gPainter::line(ePoint start, ePoint end)
 438 {
 439         if ( m_dc->islocked() )
 440                 return;
 441         gOpcode o;
 442         o.opcode=gOpcode::line;
 443         o.dc = m_dc.grabRef();
 444         o.parm.line = new gOpcode::para::pline;
 445         o.parm.line->start = start;
 446         o.parm.line->end = end;
 447         m_rc->submit(o);
 448 }
 449
 450 void gPainter::setOffset(ePoint val)
 451 {
 452         if ( m_dc->islocked() )
 453                 return;
 454         gOpcode o;
 455         o.opcode=gOpcode::setOffset;
 456         o.dc = m_dc.grabRef();
 457         o.parm.setOffset = new gOpcode::para::psetOffset;
 458         o.parm.setOffset->rel = 0;
 459         o.parm.setOffset->value = val;
 460         m_rc->submit(o);
 461 }
 462
 463 void gPainter::moveOffset(ePoint rel)
 464 {
 465         if ( m_dc->islocked() )
 466                 return;
 467         gOpcode o;
 468         o.opcode=gOpcode::setOffset;
 469         o.dc = m_dc.grabRef();
 470         o.parm.setOffset = new gOpcode::para::psetOffset;
 471         o.parm.setOffset->rel = 1;
 472         o.parm.setOffset->value = rel;
 473         m_rc->submit(o);
 474 }
 475
 476 void gPainter::resetOffset()
 477 {
 478         if ( m_dc->islocked() )
 479                 return;
 480         gOpcode o;
 481         o.opcode=gOpcode::setOffset;
 482         o.dc = m_dc.grabRef();
 483         o.parm.setOffset = new gOpcode::para::psetOffset;
 484         o.parm.setOffset->rel = 0;
 485         o.parm.setOffset->value = ePoint(0, 0);
 486         m_rc->submit(o);
 487 }
 488
 489 void gPainter::resetClip(const gRegion &region)
 490 {
 491         if ( m_dc->islocked() )
 492                 return;
 493         gOpcode o;
 494         o.opcode = gOpcode::setClip;
 495         o.dc = m_dc.grabRef();
 496         o.parm.clip = new gOpcode::para::psetClip;
 497         o.parm.clip->region = region;
 498         m_rc->submit(o);
 499 }
 500
 501 void gPainter::clip(const gRegion &region)
 502 {
 503         if ( m_dc->islocked() )
 504                 return;
 505         gOpcode o;
 506         o.opcode = gOpcode::addClip;
 507         o.dc = m_dc.grabRef();
 508         o.parm.clip = new gOpcode::para::psetClip;
 509         o.parm.clip->region = region;
 510         m_rc->submit(o);
 511 }
 512
 513 void gPainter::clippop()
 514 {
 515         if ( m_dc->islocked() )
 516                 return;
 517         gOpcode o;
 518         o.opcode = gOpcode::popClip;
 519         o.dc = m_dc.grabRef();
 520         m_rc->submit(o);
 521 }
 522
 523 void gPainter::flush()
 524 {
 525         if ( m_dc->islocked() )
 526                 return;
 527         gOpcode o;
 528         o.opcode = gOpcode::flush;
 529         o.dc = m_dc.grabRef();
 530         m_rc->submit(o);
 531 }
 532
 533 void gPainter::waitVSync()
 534 {
 535         if ( m_dc->islocked() )
 536                 return;
 537         gOpcode o;
 538         o.opcode = gOpcode::waitVSync;
 539         o.dc = m_dc.grabRef();
 540         m_rc->submit(o);
 541 }
 542
 543 void gPainter::flip()
 544 {
 545         if ( m_dc->islocked() )
 546                 return;
 547         gOpcode o;
 548         o.opcode = gOpcode::flip;
 549         o.dc = m_dc.grabRef();
 550         m_rc->submit(o);
 551 }
 552
 553 void gPainter::notify()
 554 {
 555         if ( m_dc->islocked() )
 556                 return;
 557         gOpcode o;
 558         o.opcode = gOpcode::notify;
 559         o.dc = m_dc.grabRef();
 560         m_rc->submit(o);
 561 }
 562
 563 void gPainter::end()
 564 {
 565         if ( m_dc->islocked() )
 566                 return;
 567         gOpcode o;
 568         o.opcode = gOpcode::flush;
 569         o.dc = m_dc.grabRef();
 570         m_rc->submit(o);
 571 }
 572
 573 gDC::gDC()
 574 {
 575 }
 576
 577 gDC::gDC(gPixmap *pixmap): m_pixmap(pixmap)
 578 {
 579 }
 580
 581 gDC::~gDC()
 582 {
 583 }
 584
 585 void gDC::exec(gOpcode *o)
 586 {
 587         switch (o->opcode)
 588         {
 589         case gOpcode::setBackgroundColor:
 590                 m_background_color = o->parm.setColor->color;
 591                 m_background_color_rgb = getRGB(m_background_color);
 592                 delete o->parm.setColor;
 593                 break;
 594         case gOpcode::setForegroundColor:
 595                 m_foreground_color = o->parm.setColor->color;
 596                 m_background_color_rgb = getRGB(m_foreground_color);
 597                 delete o->parm.setColor;
 598                 break;
 599         case gOpcode::setBackgroundColorRGB:
 600                 if (m_pixmap->needClut())
 601                         m_background_color = m_pixmap->surface->clut.findColor(o->parm.setColorRGB->color);
 602                 m_background_color_rgb = o->parm.setColorRGB->color;
 603                 delete o->parm.setColorRGB;
 604                 break;
 605         case gOpcode::setForegroundColorRGB:
 606                 if (m_pixmap->needClut())
 607                         m_foreground_color = m_pixmap->surface->clut.findColor(o->parm.setColorRGB->color);
 608                 m_foreground_color_rgb = o->parm.setColorRGB->color;
 609                 delete o->parm.setColorRGB;
 610                 break;
 611         case gOpcode::setFont:
 612                 m_current_font = o->parm.setFont->font;
 613                 o->parm.setFont->font->Release();
 614                 delete o->parm.setFont;
 615                 break;
 616         case gOpcode::renderText:
 617         {
 618                 ePtr<eTextPara> para = new eTextPara(o->parm.renderText->area);
 619                 int flags = o->parm.renderText->flags;
 620                 assert(m_current_font);
 621                 para->setFont(m_current_font);
 622                 para->renderString(o->parm.renderText->text, (flags & gPainter::RT_WRAP) ? RS_WRAP : 0);
 623                 if (o->parm.renderText->text)
 624                         free(o->parm.renderText->text);
 625                 if (flags & gPainter::RT_HALIGN_RIGHT)
 626                         para->realign(eTextPara::dirRight);
 627                 else if (flags & gPainter::RT_HALIGN_CENTER)
 628                         para->realign(eTextPara::dirCenter);
 629                 else if (flags & gPainter::RT_HALIGN_BLOCK)
 630                         para->realign(eTextPara::dirBlock);
 631
 632                 ePoint offset = m_current_offset;
 633
 634                 if (o->parm.renderText->flags & gPainter::RT_VALIGN_CENTER)
 635                 {
 636                         eRect bbox = para->getBoundBox();
 637                         int vcentered_top = o->parm.renderText->area.top() + ((o->parm.renderText->area.height() - bbox.height()) / 2);
 638                         int correction = vcentered_top - bbox.top();
 639                         offset += ePoint(0, correction);
 640                 }
 641
 642                 para->blit(*this, offset, m_background_color_rgb, m_foreground_color_rgb);
 643                 delete o->parm.renderText;
 644                 break;
 645         }
 646         case gOpcode::renderPara:
 647         {
 648                 o->parm.renderPara->textpara->blit(*this, o->parm.renderPara->offset + m_current_offset, m_background_color_rgb, m_foreground_color_rgb);
 649                 o->parm.renderPara->textpara->Release();
 650                 delete o->parm.renderPara;
 651                 break;
 652         }
 653         case gOpcode::fill:
 654         {
 655                 eRect area = o->parm.fill->area;
 656                 area.moveBy(m_current_offset);
 657                 gRegion clip = m_current_clip & area;
 658                 if (m_pixmap->needClut())
 659                         m_pixmap->fill(clip, m_foreground_color);
 660                 else
 661                         m_pixmap->fill(clip, m_foreground_color_rgb);
 662                 delete o->parm.fill;
 663                 break;
 664         }
 665         case gOpcode::fillRegion:
 666         {
 667                 o->parm.fillRegion->region.moveBy(m_current_offset);
 668                 gRegion clip = m_current_clip & o->parm.fillRegion->region;
 669                 if (m_pixmap->needClut())
 670                         m_pixmap->fill(clip, m_foreground_color);
 671                 else
 672                         m_pixmap->fill(clip, m_foreground_color_rgb);
 673                 delete o->parm.fillRegion;
 674                 break;
 675         }
 676         case gOpcode::clear:
 677                 if (m_pixmap->needClut())
 678                         m_pixmap->fill(m_current_clip, m_background_color);
 679                 else
 680                         m_pixmap->fill(m_current_clip, m_background_color_rgb);
 681                 delete o->parm.fill;
 682                 break;
 683         case gOpcode::blit:
 684         {
 685                 gRegion clip;
 686                                 // this code should be checked again but i'm too tired now
 687
 688                 o->parm.blit->position += m_current_offset;
 689
 690                 if (o->parm.blit->clip.valid())
 691                 {
 692                         o->parm.blit->clip.moveBy(m_current_offset);
 693                         clip.intersect(gRegion(o->parm.blit->clip), m_current_clip);
 694                 } else
 695                         clip = m_current_clip;
 696
 697                 m_pixmap->blit(*o->parm.blit->pixmap, o->parm.blit->position, clip, o->parm.blit->flags);
 698                 o->parm.blit->pixmap->Release();
 699                 delete o->parm.blit;
 700                 break;
 701         }
 702         case gOpcode::setPalette:
 703                 if (o->parm.setPalette->palette->start > m_pixmap->surface->clut.colors)
 704                         o->parm.setPalette->palette->start = m_pixmap->surface->clut.colors;
 705                 if (o->parm.setPalette->palette->colors > (m_pixmap->surface->clut.colors-o->parm.setPalette->palette->start))
 706                         o->parm.setPalette->palette->colors = m_pixmap->surface->clut.colors-o->parm.setPalette->palette->start;
 707                 if (o->parm.setPalette->palette->colors)
 708                         memcpy(m_pixmap->surface->clut.data+o->parm.setPalette->palette->start, o->parm.setPalette->palette->data, o->parm.setPalette->palette->colors*sizeof(gRGB));
 709
 710                 delete[] o->parm.setPalette->palette->data;
 711                 delete o->parm.setPalette->palette;
 712                 delete o->parm.setPalette;
 713                 break;
 714         case gOpcode::mergePalette:
 715                 m_pixmap->mergePalette(*o->parm.mergePalette->target);
 716                 o->parm.mergePalette->target->Release();
 717                 delete o->parm.mergePalette;
 718                 break;
 719         case gOpcode::line:
 720         {
 721                 ePoint start = o->parm.line->start + m_current_offset, end = o->parm.line->end + m_current_offset;
 722                 m_pixmap->line(m_current_clip, start, end, m_foreground_color);
 723                 delete o->parm.line;
 724                 break;
 725         }
 726         case gOpcode::addClip:
 727                 m_clip_stack.push(m_current_clip);
 728                 o->parm.clip->region.moveBy(m_current_offset);
 729                 m_current_clip &= o->parm.clip->region;
 730                 delete o->parm.clip;
 731                 break;
 732         case gOpcode::setClip:
 733                 o->parm.clip->region.moveBy(m_current_offset);
 734                 m_current_clip = o->parm.clip->region & eRect(ePoint(0, 0), m_pixmap->size());
 735                 delete o->parm.clip;
 736                 break;
 737         case gOpcode::popClip:
 738                 if (!m_clip_stack.empty())
 739                 {
 740                         m_current_clip = m_clip_stack.top();
 741                         m_clip_stack.pop();
 742                 }
 743                 break;
 744         case gOpcode::setOffset:
 745                 if (o->parm.setOffset->rel)
 746                         m_current_offset += o->parm.setOffset->value;
 747                 else
 748                         m_current_offset  = o->parm.setOffset->value;
 749                 delete o->parm.setOffset;
 750                 break;
 751         case gOpcode::waitVSync:
 752                 break;
 753         case gOpcode::flip:
 754                 break;
 755         case gOpcode::flush:
 756                 break;
 757         case gOpcode::enableSpinner:
 758                 enableSpinner();
 759                 break;
 760         case gOpcode::disableSpinner:
 761                 disableSpinner();
 762                 break;
 763         case gOpcode::incrementSpinner:
 764                 incrementSpinner();
 765                 break;
 766         default:
 767                 eFatal("illegal opcode %d. expect memory leak!", o->opcode);
 768         }
 769 }
 770
 771 gRGB gDC::getRGB(gColor col)
 772 {
 773         if ((!m_pixmap) || (!m_pixmap->surface->clut.data))
 774                 return gRGB(col, col, col);
 775         if (col<0)
 776         {
 777                 eFatal("bla transp");
 778                 return gRGB(0, 0, 0, 0xFF);
 779         }
 780         return m_pixmap->surface->clut.data[col];
 781 }
 782
 783 void gDC::enableSpinner()
 784 {
 785         ASSERT(m_spinner_saved);
 786
 787                 /* save the background to restore it later. We need to negative position because we want to blit from the middle of the screen. */
 788         m_spinner_saved->blit(*m_pixmap, -m_spinner_pos.topLeft(), gRegion(eRect(ePoint(0, 0), m_spinner_saved->size())), 0);
 789
 790         incrementSpinner();
 791 }
 792
 793 void gDC::disableSpinner()
 794 {
 795         ASSERT(m_spinner_saved);
 796
 797                 /* restore background */
 798         m_pixmap->blit(*m_spinner_saved, m_spinner_pos.topLeft(), gRegion(m_spinner_pos), 0);
 799 }
 800
 801 void gDC::incrementSpinner()
 802 {
 803         ASSERT(m_spinner_saved);
 804
 805         static int blub;
 806         blub++;
 807
 808         int i;
 809
 810         for (i = 0; i < 5; ++i)
 811         {
 812                 int x = i * 20 + m_spinner_pos.left();
 813                 int y = m_spinner_pos.top();
 814
 815                 int col = ((blub - i) * 30) % 256;
 816
 817                 m_pixmap->fill(eRect(x, y, 10, 10), gRGB(col, col, col));
 818         }
 819 }
 820
 821 void gDC::setSpinner(eRect pos)
 822 {
 823         ASSERT(m_pixmap);
 824         ASSERT(m_pixmap->surface);
 825         m_spinner_saved = new gPixmap(pos.size(), m_pixmap->surface->bpp);
 826         m_spinner_pos = pos;
 827 }
 828
 829 DEFINE_REF(gDC);
 830
 831 eAutoInitPtr<gRC> init_grc(eAutoInitNumbers::graphic, "gRC");