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 #define MAXSIZE 1024
  14
  15 #ifndef SYNC_PAINT
  16 void *gRC::thread_wrapper(void *ptr)
  17 {
  18         nice(3);
  19         return ((gRC*)ptr)->thread();
  20 }
  21 #endif
  22
  23 gRC *gRC::instance=0;
  24
  25 gRC::gRC(): queue(2048), m_notify_pump(eApp, 0), queuelock(MAXSIZE)
  26 {
  27         ASSERT(!instance);
  28         instance=this;
  29         queuelock.lock(MAXSIZE);
  30         CONNECT(m_notify_pump.recv_msg, gRC::recv_notify);
  31 #ifndef SYNC_PAINT
  32         int res = pthread_create(&the_thread, 0, thread_wrapper, this);
  33         if (res)
  34                 eFatal("RC thread couldn't be created");
  35         else
  36                 eDebug("RC thread created successfully");
  37 #endif
  38 }
  39
  40 DEFINE_REF(gRC);
  41
  42 gRC::~gRC()
  43 {
  44         instance=0;
  45
  46         gOpcode o;
  47         o.opcode=gOpcode::shutdown;
  48         submit(o);
  49 #ifndef SYNC_PAINT
  50         eDebug("waiting for gRC thread shutdown");
  51         pthread_join(the_thread, 0);
  52         eDebug("gRC thread has finished");
  53 #endif
  54 }
  55
  56 void *gRC::thread()
  57 {
  58         int need_notify = 0;
  59 #ifndef SYNC_PAINT
  60         while (1)
  61 #else
  62         while (queue.size())
  63 #endif
  64         {
  65                 queuelock.lock(1);
  66                 gOpcode& o(queue.current());
  67                 if (o.opcode==gOpcode::shutdown)
  68                         break;
  69                 if (o.opcode==gOpcode::notify)
  70                         need_notify = 1;
  71                 else
  72                         o.dc->exec(&o);
  73                 o.dc->Release();
  74                 queue.dequeue();
  75
  76                 if ((!queue.size()) && need_notify)
  77                 {
  78                         need_notify = 0;
  79                         m_notify_pump.send(1);
  80                 }
  81         }
  82 #ifndef SYNC_PAINT
  83         pthread_exit(0);
  84 #endif
  85         return 0;
  86 }
  87
  88 void gRC::recv_notify(const int &i)
  89 {
  90         notify();
  91 }
  92
  93 gRC *gRC::getInstance()
  94 {
  95         return instance;
  96 }
  97
  98 static int gPainter_instances;
  99
 100 gPainter::gPainter(gDC *dc, eRect rect): m_dc(dc), m_rc(gRC::getInstance())
 101 {
 102 //      ASSERT(!gPainter_instances);
 103         gPainter_instances++;
 104 //      begin(rect);
 105 }
 106
 107 gPainter::~gPainter()
 108 {
 109         end();
 110         gPainter_instances--;
 111 }
 112
 113 void gPainter::setBackgroundColor(const gColor &color)
 114 {
 115         gOpcode o;
 116         o.opcode = gOpcode::setBackgroundColor;
 117         o.dc = m_dc.grabRef();
 118         o.parm.setColor = new gOpcode::para::psetColor;
 119         o.parm.setColor->color = color;
 120
 121         m_rc->submit(o);
 122 }
 123
 124 void gPainter::setForegroundColor(const gColor &color)
 125 {
 126         gOpcode o;
 127         o.opcode = gOpcode::setForegroundColor;
 128         o.dc = m_dc.grabRef();
 129         o.parm.setColor = new gOpcode::para::psetColor;
 130         o.parm.setColor->color = color;
 131
 132         m_rc->submit(o);
 133 }
 134
 135 void gPainter::setBackgroundColor(const gRGB &color)
 136 {
 137         gOpcode o;
 138         o.opcode = gOpcode::setBackgroundColorRGB;
 139         o.dc = m_dc.grabRef();
 140         o.parm.setColorRGB = new gOpcode::para::psetColorRGB;
 141         o.parm.setColorRGB->color = color;
 142
 143         m_rc->submit(o);
 144 }
 145
 146 void gPainter::setForegroundColor(const gRGB &color)
 147 {
 148         gOpcode o;
 149         o.opcode = gOpcode::setForegroundColorRGB;
 150         o.dc = m_dc.grabRef();
 151         o.parm.setColorRGB = new gOpcode::para::psetColorRGB;
 152         o.parm.setColorRGB->color = color;
 153
 154         m_rc->submit(o);
 155 }
 156
 157 void gPainter::setFont(gFont *font)
 158 {
 159         gOpcode o;
 160         o.opcode = gOpcode::setFont;
 161         o.dc = m_dc.grabRef();
 162         font->AddRef();
 163         o.parm.setFont = new gOpcode::para::psetFont;
 164         o.parm.setFont->font = font;
 165
 166         m_rc->submit(o);
 167 }
 168
 169 void gPainter::renderText(const eRect &pos, const std::string &string, int flags)
 170 {
 171         gOpcode o;
 172         o.opcode=gOpcode::renderText;
 173         o.dc = m_dc.grabRef();
 174         o.parm.renderText = new gOpcode::para::prenderText;
 175         o.parm.renderText->area = pos;
 176         o.parm.renderText->text = string;
 177         o.parm.renderText->flags = flags;
 178         m_rc->submit(o);
 179 }
 180
 181 void gPainter::renderPara(eTextPara *para, ePoint offset)
 182 {
 183         gOpcode o;
 184         o.opcode=gOpcode::renderPara;
 185         o.dc = m_dc.grabRef();
 186         o.parm.renderPara = new gOpcode::para::prenderPara;
 187         o.parm.renderPara->offset = offset;
 188
 189         para->AddRef();
 190         o.parm.renderPara->textpara = para;
 191         m_rc->submit(o);
 192 }
 193
 194 void gPainter::fill(const eRect &area)
 195 {
 196         gOpcode o;
 197         o.opcode=gOpcode::fill;
 198
 199         o.dc = m_dc.grabRef();
 200         o.parm.fill = new gOpcode::para::pfillRect;
 201         o.parm.fill->area = area;
 202         m_rc->submit(o);
 203 }
 204
 205 void gPainter::fill(const gRegion &region)
 206 {
 207         gOpcode o;
 208         o.opcode=gOpcode::fillRegion;
 209
 210         o.dc = m_dc.grabRef();
 211         o.parm.fillRegion = new gOpcode::para::pfillRegion;
 212         o.parm.fillRegion->region = region;
 213         m_rc->submit(o);
 214 }
 215
 216 void gPainter::clear()
 217 {
 218         gOpcode o;
 219         o.opcode=gOpcode::clear;
 220         o.dc = m_dc.grabRef();
 221         o.parm.fill = new gOpcode::para::pfillRect;
 222         o.parm.fill->area = eRect();
 223         m_rc->submit(o);
 224 }
 225
 226 void gPainter::blit(gPixmap *pixmap, ePoint pos, const eRect &clip, int flags)
 227 {
 228         gOpcode o;
 229
 230         o.opcode=gOpcode::blit;
 231         o.dc = m_dc.grabRef();
 232         pixmap->AddRef();
 233         o.parm.blit  = new gOpcode::para::pblit;
 234         o.parm.blit->pixmap = pixmap;
 235         o.parm.blit->position = pos;
 236         o.parm.blit->clip = clip;
 237         o.parm.blit->flags=flags;
 238         m_rc->submit(o);
 239 }
 240
 241
 242 void gPainter::setPalette(gRGB *colors, int start, int len)
 243 {
 244         gOpcode o;
 245         o.opcode=gOpcode::setPalette;
 246         o.dc = m_dc.grabRef();
 247         gPalette *p=new gPalette;
 248
 249         o.parm.setPalette = new gOpcode::para::psetPalette;
 250         p->data=new gRGB[len];
 251
 252         memcpy(p->data, colors, len*sizeof(gRGB));
 253         p->start=start;
 254         p->colors=len;
 255         o.parm.setPalette->palette = p;
 256         m_rc->submit(o);
 257 }
 258
 259 void gPainter::setPalette(gPixmap *source)
 260 {
 261         ASSERT(source);
 262         setPalette(source->surface->clut.data, source->surface->clut.start, source->surface->clut.colors);
 263 }
 264
 265 void gPainter::mergePalette(gPixmap *target)
 266 {
 267         gOpcode o;
 268         o.opcode = gOpcode::mergePalette;
 269         o.dc = m_dc.grabRef();
 270         target->AddRef();
 271         o.parm.mergePalette = new gOpcode::para::pmergePalette;
 272         o.parm.mergePalette->target = target;
 273         m_rc->submit(o);
 274 }
 275
 276 void gPainter::line(ePoint start, ePoint end)
 277 {
 278         gOpcode o;
 279         o.opcode=gOpcode::line;
 280         o.dc = m_dc.grabRef();
 281         o.parm.line = new gOpcode::para::pline;
 282         o.parm.line->start = start;
 283         o.parm.line->end = end;
 284         m_rc->submit(o);
 285 }
 286
 287 void gPainter::setOffset(ePoint val)
 288 {
 289         gOpcode o;
 290         o.opcode=gOpcode::setOffset;
 291         o.dc = m_dc.grabRef();
 292         o.parm.setOffset = new gOpcode::para::psetOffset;
 293         o.parm.setOffset->rel = 0;
 294         o.parm.setOffset->value = val;
 295         m_rc->submit(o);
 296 }
 297
 298 void gPainter::moveOffset(ePoint rel)
 299 {
 300         gOpcode o;
 301         o.opcode=gOpcode::setOffset;
 302         o.dc = m_dc.grabRef();
 303         o.parm.setOffset = new gOpcode::para::psetOffset;
 304         o.parm.setOffset->rel = 1;
 305         o.parm.setOffset->value = rel;
 306         m_rc->submit(o);
 307 }
 308
 309 void gPainter::resetOffset()
 310 {
 311         gOpcode o;
 312         o.opcode=gOpcode::setOffset;
 313         o.dc = m_dc.grabRef();
 314         o.parm.setOffset = new gOpcode::para::psetOffset;
 315         o.parm.setOffset->rel = 0;
 316         o.parm.setOffset->value = ePoint(0, 0);
 317         m_rc->submit(o);
 318 }
 319
 320 void gPainter::resetClip(const gRegion &region)
 321 {
 322         gOpcode o;
 323         o.opcode = gOpcode::setClip;
 324         o.dc = m_dc.grabRef();
 325         o.parm.clip = new gOpcode::para::psetClip;
 326         o.parm.clip->region = region;
 327         m_rc->submit(o);
 328 }
 329
 330 void gPainter::clip(const gRegion &region)
 331 {
 332         gOpcode o;
 333         o.opcode = gOpcode::addClip;
 334         o.dc = m_dc.grabRef();
 335         o.parm.clip = new gOpcode::para::psetClip;
 336         o.parm.clip->region = region;
 337         m_rc->submit(o);
 338 }
 339
 340 void gPainter::clippop()
 341 {
 342         gOpcode o;
 343         o.opcode = gOpcode::popClip;
 344         o.dc = m_dc.grabRef();
 345         m_rc->submit(o);
 346 }
 347
 348 void gPainter::flush()
 349 {
 350         gOpcode o;
 351         o.opcode = gOpcode::flush;
 352         o.dc = m_dc.grabRef();
 353         m_rc->submit(o);
 354 }
 355
 356 void gPainter::waitVSync()
 357 {
 358         gOpcode o;
 359         o.opcode = gOpcode::waitVSync;
 360         o.dc = m_dc.grabRef();
 361         m_rc->submit(o);
 362 }
 363
 364 void gPainter::flip()
 365 {
 366         gOpcode o;
 367         o.opcode = gOpcode::flip;
 368         o.dc = m_dc.grabRef();
 369         m_rc->submit(o);
 370 }
 371
 372 void gPainter::notify()
 373 {
 374         gOpcode o;
 375         o.opcode = gOpcode::notify;
 376         o.dc = m_dc.grabRef();
 377         m_rc->submit(o);
 378 }
 379
 380 void gPainter::end()
 381 {
 382         gOpcode o;
 383         o.opcode = gOpcode::flush;
 384         o.dc = m_dc.grabRef();
 385         m_rc->submit(o);
 386 }
 387
 388 gDC::gDC()
 389 {
 390 }
 391
 392 gDC::gDC(gPixmap *pixmap): m_pixmap(pixmap)
 393 {
 394 }
 395
 396 gDC::~gDC()
 397 {
 398 }
 399
 400 void gDC::exec(gOpcode *o)
 401 {
 402         switch (o->opcode)
 403         {
 404         case gOpcode::setBackgroundColor:
 405                 m_background_color = o->parm.setColor->color;
 406                 delete o->parm.setColor;
 407                 break;
 408         case gOpcode::setForegroundColor:
 409                 m_foreground_color = o->parm.setColor->color;
 410                 delete o->parm.setColor;
 411                 break;
 412         case gOpcode::setBackgroundColorRGB:
 413                 m_background_color = m_pixmap->surface->clut.findColor(o->parm.setColorRGB->color);
 414                 delete o->parm.setColorRGB;
 415                 break;
 416         case gOpcode::setForegroundColorRGB:
 417                 m_foreground_color = m_pixmap->surface->clut.findColor(o->parm.setColorRGB->color);
 418                 delete o->parm.setColorRGB;
 419                 break;
 420         case gOpcode::setFont:
 421                 m_current_font = o->parm.setFont->font;
 422                 o->parm.setFont->font->Release();
 423                 delete o->parm.setFont;
 424                 break;
 425         case gOpcode::renderText:
 426         {
 427                 ePtr<eTextPara> para = new eTextPara(o->parm.renderText->area);
 428                 int flags = o->parm.renderText->flags;
 429                 assert(m_current_font);
 430                 para->setFont(m_current_font);
 431                 para->renderString(o->parm.renderText->text, (flags & gPainter::RT_WRAP) ? RS_WRAP : 0);
 432
 433                 if (flags & gPainter::RT_HALIGN_RIGHT)
 434                         para->realign(eTextPara::dirRight);
 435                 else if (flags & gPainter::RT_HALIGN_CENTER)
 436                         para->realign(eTextPara::dirCenter);
 437                 else if (flags & gPainter::RT_HALIGN_BLOCK)
 438                         para->realign(eTextPara::dirBlock);
 439
 440                 ePoint offset = m_current_offset;
 441
 442                 if (o->parm.renderText->flags & gPainter::RT_VALIGN_CENTER)
 443                 {
 444                         eRect bbox = para->getBoundBox();
 445                         int vcentered_top = (o->parm.renderText->area.height() - bbox.height()) / 2;
 446                         int correction = vcentered_top - bbox.top();
 447                         offset += ePoint(0, correction);
 448                 }
 449                 para->blit(*this, offset, getRGB(m_background_color), getRGB(m_foreground_color));
 450                 delete o->parm.renderText;
 451                 break;
 452         }
 453         case gOpcode::renderPara:
 454         {
 455                 o->parm.renderPara->textpara->blit(*this, o->parm.renderPara->offset + m_current_offset, getRGB(m_background_color), getRGB(m_foreground_color));
 456                 o->parm.renderPara->textpara->Release();
 457                 delete o->parm.renderPara;
 458                 break;
 459         }
 460         case gOpcode::fill:
 461         {
 462                 eRect area = o->parm.fill->area;
 463                 area.moveBy(m_current_offset);
 464                 gRegion clip = m_current_clip & area;
 465                 m_pixmap->fill(clip, m_foreground_color);
 466                 delete o->parm.fill;
 467                 break;
 468         }
 469         case gOpcode::fillRegion:
 470         {
 471                 o->parm.fillRegion->region.moveBy(m_current_offset);
 472                 gRegion clip = m_current_clip & o->parm.fillRegion->region;
 473                 m_pixmap->fill(clip, m_foreground_color);
 474                 delete o->parm.fillRegion;
 475                 break;
 476         }
 477         case gOpcode::clear:
 478                 m_pixmap->fill(m_current_clip, m_background_color);
 479                 delete o->parm.fill;
 480                 break;
 481         case gOpcode::blit:
 482         {
 483                 gRegion clip;
 484                                 // this code should be checked again but i'm too tired now
 485
 486                 o->parm.blit->position += m_current_offset;
 487
 488                 if (o->parm.blit->clip.valid())
 489                 {
 490                         o->parm.blit->clip.moveBy(m_current_offset);
 491                         clip.intersect(gRegion(o->parm.blit->clip), m_current_clip);
 492                 } else
 493                         clip = m_current_clip;
 494
 495                 m_pixmap->blit(*o->parm.blit->pixmap, o->parm.blit->position, clip, o->parm.blit->flags);
 496                 o->parm.blit->pixmap->Release();
 497                 delete o->parm.blit;
 498                 break;
 499         }
 500         case gOpcode::setPalette:
 501                 if (o->parm.setPalette->palette->start > m_pixmap->surface->clut.colors)
 502                         o->parm.setPalette->palette->start = m_pixmap->surface->clut.colors;
 503                 if (o->parm.setPalette->palette->colors > (m_pixmap->surface->clut.colors-o->parm.setPalette->palette->start))
 504                         o->parm.setPalette->palette->colors = m_pixmap->surface->clut.colors-o->parm.setPalette->palette->start;
 505                 if (o->parm.setPalette->palette->colors)
 506                         memcpy(m_pixmap->surface->clut.data+o->parm.setPalette->palette->start, o->parm.setPalette->palette->data, o->parm.setPalette->palette->colors*sizeof(gRGB));
 507
 508                 delete[] o->parm.setPalette->palette->data;
 509                 delete o->parm.setPalette->palette;
 510                 delete o->parm.setPalette;
 511                 break;
 512         case gOpcode::mergePalette:
 513                 m_pixmap->mergePalette(*o->parm.mergePalette->target);
 514                 o->parm.mergePalette->target->Release();
 515                 delete o->parm.mergePalette;
 516                 break;
 517         case gOpcode::line:
 518         {
 519                 ePoint start = o->parm.line->start + m_current_offset, end = o->parm.line->end + m_current_offset;
 520                 m_pixmap->line(m_current_clip, start, end, m_foreground_color);
 521                 delete o->parm.line;
 522                 break;
 523         }
 524         case gOpcode::addClip:
 525                 m_clip_stack.push(m_current_clip);
 526                 o->parm.clip->region.moveBy(m_current_offset);
 527                 m_current_clip &= o->parm.clip->region;
 528                 delete o->parm.clip;
 529                 break;
 530         case gOpcode::setClip:
 531                 o->parm.clip->region.moveBy(m_current_offset);
 532                 m_current_clip = o->parm.clip->region & eRect(ePoint(0, 0), m_pixmap->size());
 533                 delete o->parm.clip;
 534                 break;
 535         case gOpcode::popClip:
 536                 if (!m_clip_stack.empty())
 537                 {
 538                         m_current_clip = m_clip_stack.top();
 539                         m_clip_stack.pop();
 540                 }
 541                 break;
 542         case gOpcode::setOffset:
 543                 if (o->parm.setOffset->rel)
 544                         m_current_offset += o->parm.setOffset->value;
 545                 else
 546                         m_current_offset  = o->parm.setOffset->value;
 547                 delete o->parm.setOffset;
 548                 break;
 549         case gOpcode::waitVSync:
 550                 break;
 551         case gOpcode::flip:
 552                 break;
 553         case gOpcode::flush:
 554                 break;
 555         default:
 556                 eFatal("illegal opcode %d. expect memory leak!", o->opcode);
 557         }
 558 }
 559
 560 gRGB gDC::getRGB(gColor col)
 561 {
 562         if ((!m_pixmap) || (!m_pixmap->surface->clut.data))
 563                 return gRGB(col, col, col);
 564         if (col<0)
 565         {
 566                 eFatal("bla transp");
 567                 return gRGB(0, 0, 0, 0xFF);
 568         }
 569         return m_pixmap->surface->clut.data[col];
 570 }
 571
 572 DEFINE_REF(gDC);
 573
 574 eAutoInitPtr<gRC> init_grc(eAutoInitNumbers::graphic, "gRC");