lib/gdi/grc.cpp

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