lib/gdi/font.cpp

   1 #include <lib/gdi/font.h>
   2
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <ctype.h>
   6 #include <pthread.h>
   7 #include <sys/types.h>
   8 #include <unistd.h>
   9 #include <byteswap.h>
  10
  11 #ifndef BYTE_ORDER
  12 #error "no BYTE_ORDER defined!"
  13 #endif
  14
  15 // use this for init Freetype...
  16 #include <ft2build.h>
  17 #include FT_FREETYPE_H
  18 #define FTC_Image_Cache_New(a,b)        FTC_ImageCache_New(a,b)
  19 #define FTC_Image_Cache_Lookup(a,b,c,d) FTC_ImageCache_Lookup(a,b,c,d,NULL)
  20 #define FTC_SBit_Cache_New(a,b)         FTC_SBitCache_New(a,b)
  21 #define FTC_SBit_Cache_Lookup(a,b,c,d)  FTC_SBitCache_Lookup(a,b,c,d,NULL)
  22
  23 #include <lib/base/eerror.h>
  24 #include <lib/gdi/lcd.h>
  25 #include <lib/gdi/grc.h>
  26 #include <lib/base/elock.h>
  27 #include <lib/base/init.h>
  28 #include <lib/base/init_num.h>
  29
  30 #define HAVE_FRIBIDI
  31 // until we have it in the cdk
  32
  33 #ifdef HAVE_FRIBIDI
  34 #include <fribidi/fribidi.h>
  35 #endif
  36
  37 #include <map>
  38
  39 fontRenderClass *fontRenderClass::instance;
  40
  41 static pthread_mutex_t ftlock=PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
  42
  43 struct fntColorCacheKey
  44 {
  45         gRGB start, end;
  46         fntColorCacheKey(const gRGB &start, const gRGB &end)
  47                 : start(start), end(end)
  48         {
  49         }
  50         bool operator <(const fntColorCacheKey &c) const
  51         {
  52                 if (start < c.start)
  53                         return 1;
  54                 else if (start == c.start)
  55                         return end < c.end;
  56                 return 0;
  57         }
  58 };
  59
  60 std::map<fntColorCacheKey,gLookup> colorcache;
  61
  62 static gLookup &getColor(const gPalette &pal, const gRGB &start, const gRGB &end)
  63 {
  64         fntColorCacheKey key(start, end);
  65         std::map<fntColorCacheKey,gLookup>::iterator i=colorcache.find(key);
  66         if (i != colorcache.end())
  67                 return i->second;
  68         gLookup &n=colorcache.insert(std::pair<fntColorCacheKey,gLookup>(key,gLookup())).first->second;
  69 //      eDebug("[FONT] creating new font color cache entry %02x%02x%02x%02x .. %02x%02x%02x%02x", start.a, start.r, start.g, start.b,
  70 //              end.a, end.r, end.g, end.b);
  71         n.build(16, pal, start, end);
  72 //      for (int i=0; i<16; i++)
  73 //              eDebugNoNewLine("%02x|%02x%02x%02x%02x ", (int)n.lookup[i], pal.data[n.lookup[i]].a, pal.data[n.lookup[i]].r, pal.data[n.lookup[i]].g, pal.data[n.lookup[i]].b);
  74 //      eDebug("");
  75         return n;
  76 }
  77
  78 fontRenderClass *fontRenderClass::getInstance()
  79 {
  80         return instance;
  81 }
  82
  83 FT_Error myFTC_Face_Requester(FTC_FaceID        face_id,
  84                                                                                                                         FT_Library      library,
  85                                                                                                                         FT_Pointer      request_data,
  86                                                                                                                         FT_Face*                aface)
  87 {
  88         return ((fontRenderClass*)request_data)->FTC_Face_Requester(face_id, aface);
  89 }
  90
  91
  92 FT_Error fontRenderClass::FTC_Face_Requester(FTC_FaceID face_id, FT_Face* aface)
  93 {
  94         fontListEntry *font=(fontListEntry *)face_id;
  95         if (!font)
  96                 return -1;
  97
  98 //      eDebug("[FONT] FTC_Face_Requester (%s)", font->face.c_str());
  99
 100         int error;
 101         if ((error=FT_New_Face(library, font->filename.c_str(), 0, aface)))
 102         {
 103                 eDebug(" failed: %s", strerror(error));
 104                 return error;
 105         }
 106         FT_Select_Charmap(*aface, ft_encoding_unicode);
 107         return 0;
 108 }
 109
 110 FTC_FaceID fontRenderClass::getFaceID(const std::string &face)
 111 {
 112         for (fontListEntry *f=font; f; f=f->next)
 113         {
 114                 if (f->face == face)
 115                         return (FTC_FaceID)f;
 116         }
 117         return 0;
 118 }
 119
 120 FT_Error fontRenderClass::getGlyphBitmap(FTC_Image_Desc *font, FT_ULong glyph_index, FTC_SBit *sbit)
 121 {
 122         FT_Error res=FTC_SBit_Cache_Lookup(sbitsCache, font, glyph_index, sbit);
 123         return res;
 124 }
 125
 126 std::string fontRenderClass::AddFont(const std::string &filename, const std::string &name, int scale)
 127 {
 128         eDebugNoNewLine("[FONT] adding font %s...", filename.c_str());
 129         fflush(stdout);
 130         int error;
 131         fontListEntry *n=new fontListEntry;
 132
 133         n->scale=scale;
 134         FT_Face face;
 135         singleLock s(ftlock);
 136
 137         if ((error=FT_New_Face(library, filename.c_str(), 0, &face)))
 138                 eFatal(" failed: %s", strerror(error));
 139
 140         n->filename=filename;
 141         n->face=name;
 142         FT_Done_Face(face);
 143
 144         n->next=font;
 145         eDebug("OK (%s)", n->face.c_str());
 146         font=n;
 147
 148         return n->face;
 149 }
 150
 151 fontRenderClass::fontListEntry::~fontListEntry()
 152 {
 153 }
 154
 155 fontRenderClass::fontRenderClass(): fb(fbClass::getInstance())
 156 {
 157         instance=this;
 158         eDebug("[FONT] initializing lib...");
 159         {
 160                 if (FT_Init_FreeType(&library))
 161                 {
 162                         eDebug("[FONT] initializing failed.");
 163                         return;
 164                 }
 165         }
 166         eDebug("[FONT] loading fonts...");
 167         fflush(stdout);
 168         font=0;
 169
 170         int maxbytes=4*1024*1024;
 171         eDebug("[FONT] Intializing font cache, using max. %dMB...", maxbytes/1024/1024);
 172         fflush(stdout);
 173         {
 174                 if (FTC_Manager_New(library, 8, 8, maxbytes, myFTC_Face_Requester, this, &cacheManager))
 175                 {
 176                         eDebug("[FONT] initializing font cache failed!");
 177                         return;
 178                 }
 179                 if (!cacheManager)
 180                 {
 181                         eDebug("[FONT] initializing font cache manager error.");
 182                         return;
 183                 }
 184                 if (FTC_SBit_Cache_New(cacheManager, &sbitsCache))
 185                 {
 186                         eDebug("[FONT] initializing font cache sbit failed!");
 187                         return;
 188                 }
 189                 if (FTC_Image_Cache_New(cacheManager, &imageCache))
 190                 {
 191                         eDebug("[FONT] initializing font cache imagecache failed!");
 192                 }
 193         }
 194         return;
 195 }
 196
 197 float fontRenderClass::getLineHeight(const gFont& font)
 198 {
 199         if (!instance)
 200                 return 0;
 201         ePtr<Font> fnt;
 202         getFont(fnt, font.family.c_str(), font.pointSize);
 203         if (!fnt)
 204                 return 0;
 205         singleLock s(ftlock);
 206         FT_Face current_face;
 207         if ((FTC_Manager_LookupFace(cacheManager, fnt->scaler.face_id, &current_face) < 0) ||
 208             (FTC_Manager_LookupSize(cacheManager, &fnt->scaler, &fnt->size) < 0))
 209         {
 210                 eDebug("FTC_Manager_Lookup_Size failed!");
 211                 return 0;
 212         }
 213         int linegap=current_face->size->metrics.height-(current_face->size->metrics.ascender+current_face->size->metrics.descender);
 214         float height=(current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap)/64.0;
 215         return height;
 216 }
 217
 218 fontRenderClass::~fontRenderClass()
 219 {
 220         singleLock s(ftlock);
 221         while(font)
 222         {
 223                 fontListEntry *f=font;
 224                 font=font->next;
 225                 delete f;
 226         }
 227 //      auskommentiert weil freetype und enigma die kritische masse des suckens ueberschreiten.
 228 //      FTC_Manager_Done(cacheManager);
 229 //      FT_Done_FreeType(library);
 230 }
 231
 232 int fontRenderClass::getFont(ePtr<Font> &font, const std::string &face, int size, int tabwidth)
 233 {
 234         FTC_FaceID id=getFaceID(face);
 235         if (!id)
 236         {
 237                 font = 0;
 238                 return -1;
 239         }
 240         font = new Font(this, id, size * ((fontListEntry*)id)->scale / 100, tabwidth);
 241         return 0;
 242 }
 243
 244 void addFont(const char *filename, const char *alias, int scale_factor, int is_replacement)
 245 {
 246         fontRenderClass::getInstance()->AddFont(filename, alias, scale_factor);
 247         if (is_replacement)
 248                 eTextPara::setReplacementFont(alias);
 249 }
 250
 251 DEFINE_REF(Font);
 252
 253 Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): tabwidth(tw)
 254 {
 255         renderer=render;
 256         font.face_id = faceid;
 257         font.width = isize;
 258         font.height = isize;
 259         font.flags = FT_LOAD_DEFAULT;
 260         scaler.face_id = faceid;
 261         scaler.width = isize;
 262         scaler.height = isize;
 263         scaler.pixel = 1;
 264         height=isize;
 265         if (tabwidth==-1)
 266                 tabwidth=8*isize;
 267 //      font.image_type |= ftc_image_flag_autohinted;
 268 }
 269
 270 FT_Error Font::getGlyphBitmap(FT_ULong glyph_index, FTC_SBit *sbit)
 271 {
 272         return renderer->getGlyphBitmap(&font, glyph_index, sbit);
 273 }
 274
 275 Font::~Font()
 276 {
 277 }
 278
 279 DEFINE_REF(eTextPara);
 280
 281 int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt glyphIndex, int flags, int rflags)
 282 {
 283         FTC_SBit glyph;
 284         if (current_font->getGlyphBitmap(glyphIndex, &glyph))
 285                 return 1;
 286
 287         int nx=cursor.x();
 288
 289         nx+=glyph->xadvance;
 290
 291         if (
 292                         (rflags&RS_WRAP) &&
 293                         (nx >= area.right())
 294                 )
 295         {
 296                 int cnt = 0;
 297                 glyphString::reverse_iterator i(glyphs.rbegin());
 298                         /* find first possibility (from end to begin) to break */
 299                 while (i != glyphs.rend())
 300                 {
 301                         if (i->flags&(GS_CANBREAK|GS_ISFIRST)) /* stop on either space/hyphen/shy or start of line (giving up) */
 302                                 break;
 303                         cnt++;
 304                         ++i;
 305                 }
 306
 307                         /* if ... */
 308                 if (i != glyphs.rend()  /* ... we found anything */
 309                         && (i->flags&GS_CANBREAK) /* ...and this is a space/hyphen/soft-hyphen */
 310                         && (!(i->flags & GS_ISFIRST)) /* ...and this is not an start of line (line with just a single space/hyphen) */
 311                         && cnt ) /* ... and there are actual non-space characters after this */
 312                 {
 313                                 /* if we have a soft-hyphen, and used that for breaking, turn it into a real hyphen */
 314                         if (i->flags & GS_SOFTHYPHEN)
 315                         {
 316                                 i->flags &= ~GS_SOFTHYPHEN;
 317                                 i->flags |= GS_HYPHEN;
 318                         }
 319                         --i; /* skip the space/hypen/softhyphen */
 320                         int linelength=cursor.x()-i->x;
 321                         i->flags|=GS_ISFIRST; /* make this a line start */
 322                         ePoint offset=ePoint(i->x, i->y);
 323                         newLine(rflags);
 324                         offset-=cursor;
 325
 326                                 /* and move everything to the end into the next line. */
 327                         do
 328                         {
 329                                 i->x-=offset.x();
 330                                 i->y-=offset.y();
 331                                 i->bbox.moveBy(-offset.x(), -offset.y());
 332                                 --lineChars.back();
 333                                 ++charCount;
 334                         } while (i-- != glyphs.rbegin()); // rearrange them into the next line
 335                         cursor+=ePoint(linelength, 0);  // put the cursor after that line
 336                 } else
 337                 {
 338                         if (cnt)
 339                         {
 340                                 newLine(rflags);
 341                                 flags|=GS_ISFIRST;
 342                         }
 343                 }
 344         }
 345
 346         int xadvance=glyph->xadvance, kern=0;
 347
 348         if (previous && use_kerning)
 349         {
 350                 FT_Vector delta;
 351                 FT_Get_Kerning(current_face, previous, glyphIndex, ft_kerning_default, &delta);
 352                 kern=delta.x>>6;
 353         }
 354
 355         pGlyph ng;
 356         ng.bbox.setLeft( ((flags&GS_ISFIRST)|(cursor.x()-1))+glyph->left );
 357         ng.bbox.setTop( cursor.y() - glyph->top );
 358         ng.bbox.setWidth( glyph->width );
 359         ng.bbox.setHeight( glyph->height );
 360
 361         xadvance += kern;
 362         ng.bbox.setWidth(xadvance);
 363
 364         ng.x = cursor.x()+kern;
 365         ng.y = cursor.y();
 366         ng.w = xadvance;
 367         ng.font = current_font;
 368         ng.glyph_index = glyphIndex;
 369         ng.flags = flags;
 370         glyphs.push_back(ng);
 371         ++charCount;
 372
 373                 /* when we have a SHY, don't xadvance. It will either be the last in the line (when used for breaking), or not displayed. */
 374         if (!(flags & GS_SOFTHYPHEN))
 375                 cursor += ePoint(xadvance, 0);
 376         previous = glyphIndex;
 377         return 0;
 378 }
 379
 380 void eTextPara::calc_bbox()
 381 {
 382         if (!glyphs.size())
 383         {
 384                 bboxValid = 0;
 385                 boundBox = eRect();
 386                 return;
 387         }
 388
 389         bboxValid = 1;
 390
 391         glyphString::iterator i(glyphs.begin());
 392
 393         boundBox = i->bbox;
 394         ++i;
 395
 396         for (; i != glyphs.end(); ++i)
 397         {
 398                 if (i->flags & (GS_ISSPACE|GS_SOFTHYPHEN))
 399                         continue;
 400                 if ( i->bbox.left() < boundBox.left() )
 401                         boundBox.setLeft( i->bbox.left() );
 402                 if ( i->bbox.top() < boundBox.top() )
 403                         boundBox.setTop( i->bbox.top() );
 404                 if ( i->bbox.right() > boundBox.right() )
 405                         boundBox.setRight( i->bbox.right() );
 406                 if ( i->bbox.bottom() > boundBox.bottom() )
 407                         boundBox.setBottom( i->bbox.bottom() );
 408         }
 409 //      eDebug("boundBox left = %i, top = %i, right = %i, bottom = %i", boundBox.left(), boundBox.top(), boundBox.right(), boundBox.bottom() );
 410 }
 411
 412 void eTextPara::newLine(int flags)
 413 {
 414         if (maximum.width()<cursor.x())
 415                 maximum.setWidth(cursor.x());
 416         cursor.setX(left);
 417         previous=0;
 418         int linegap=current_face->size->metrics.height-(current_face->size->metrics.ascender+current_face->size->metrics.descender);
 419
 420         lineOffsets.push_back(cursor.y());
 421         lineChars.push_back(charCount);
 422         charCount=0;
 423
 424         cursor+=ePoint(0, (current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap)>>6);
 425
 426         if (maximum.height()<cursor.y())
 427                 maximum.setHeight(cursor.y());
 428         previous=0;
 429 }
 430
 431 eTextPara::~eTextPara()
 432 {
 433         clear();
 434 }
 435
 436 void eTextPara::setFont(const gFont *font)
 437 {
 438         ePtr<Font> fnt, replacement;
 439         fontRenderClass::getInstance()->getFont(fnt, font->family.c_str(), font->pointSize);
 440         if (!fnt)
 441                 eWarning("FONT '%s' MISSING!", font->family.c_str());
 442         fontRenderClass::getInstance()->getFont(replacement, replacement_facename.c_str(), font->pointSize);
 443         setFont(fnt, replacement);
 444 }
 445
 446 std::string eTextPara::replacement_facename;
 447 std::set<int> eTextPara::forced_replaces;
 448
 449 void eTextPara::setFont(Font *fnt, Font *replacement)
 450 {
 451         if (!fnt)
 452                 return;
 453         current_font=fnt;
 454         replacement_font=replacement;
 455         singleLock s(ftlock);
 456
 457                         // we ask for replacment_font first becauseof the cache
 458         if (replacement_font)
 459         {
 460                 if ((FTC_Manager_LookupFace(fontRenderClass::instance->cacheManager,
 461                                             replacement_font->scaler.face_id,
 462                                             &replacement_face) < 0) ||
 463                     (FTC_Manager_LookupSize(fontRenderClass::instance->cacheManager,
 464                                             &replacement_font->scaler,
 465                                             &replacement_font->size) < 0))
 466                 {
 467                         eDebug("FTC_Manager_Lookup_Size failed!");
 468                         return;
 469                 }
 470         }
 471         if (current_font)
 472         {
 473                 if ((FTC_Manager_LookupFace(fontRenderClass::instance->cacheManager,
 474                                             current_font->scaler.face_id,
 475                                             &current_face) < 0) ||
 476                     (FTC_Manager_LookupSize(fontRenderClass::instance->cacheManager,
 477                                             &current_font->scaler,
 478                                             &current_font->size) < 0))
 479                 {
 480                         eDebug("FTC_Manager_Lookup_Size failed!");
 481                         return;
 482                 }
 483         }
 484         previous=0;
 485         use_kerning=FT_HAS_KERNING(current_face);
 486 }
 487
 488 void
 489 shape (std::vector<unsigned long> &string, const std::vector<unsigned long> &text);
 490
 491 int eTextPara::renderString(const char *string, int rflags)
 492 {
 493         singleLock s(ftlock);
 494
 495         if (!current_font)
 496                 return -1;
 497
 498         if ((FTC_Manager_LookupFace(fontRenderClass::instance->cacheManager,
 499                                     current_font->scaler.face_id,
 500                                     &current_face) < 0) ||
 501             (FTC_Manager_LookupSize(fontRenderClass::instance->cacheManager,
 502                                     &current_font->scaler,
 503                                     &current_font->size) < 0))
 504         {
 505                 eDebug("FTC_Manager_Lookup_Size failed!");
 506                 return -1;
 507         }
 508
 509         if (!current_face)
 510                 eFatal("eTextPara::renderString: no current_face");
 511         if (!current_face->size)
 512                 eFatal("eTextPara::renderString: no current_face->size");
 513
 514         if (cursor.y()==-1)
 515         {
 516                 cursor=ePoint(area.x(), area.y()+(current_face->size->metrics.ascender>>6));
 517                 left=cursor.x();
 518         }
 519
 520         std::vector<unsigned long> uc_string, uc_visual;
 521         if (string)
 522                 uc_string.reserve(strlen(string));
 523
 524         const char *p = string ? string : "";
 525
 526         while (*p)
 527         {
 528                 unsigned int unicode=(unsigned char)*p++;
 529
 530                 if (unicode & 0x80) // we have (hopefully) UTF8 here, and we assume that the encoding is VALID
 531                 {
 532                         if ((unicode & 0xE0)==0xC0) // two bytes
 533                         {
 534                                 unicode&=0x1F;
 535                                 unicode<<=6;
 536                                 if (*p)
 537                                         unicode|=(*p++)&0x3F;
 538                         } else if ((unicode & 0xF0)==0xE0) // three bytes
 539                         {
 540                                 unicode&=0x0F;
 541                                 unicode<<=6;
 542                                 if (*p)
 543                                         unicode|=(*p++)&0x3F;
 544                                 unicode<<=6;
 545                                 if (*p)
 546                                         unicode|=(*p++)&0x3F;
 547                         } else if ((unicode & 0xF8)==0xF0) // four bytes
 548                         {
 549                                 unicode&=0x07;
 550                                 unicode<<=6;
 551                                 if (*p)
 552                                         unicode|=(*p++)&0x3F;
 553                                 unicode<<=6;
 554                                 if (*p)
 555                                         unicode|=(*p++)&0x3F;
 556                                 unicode<<=6;
 557                                 if (*p)
 558                                         unicode|=(*p++)&0x3F;
 559                         }
 560                 }
 561                 uc_string.push_back(unicode);
 562         }
 563
 564         std::vector<unsigned long> uc_shape;
 565
 566                 // character -> glyph conversion
 567         shape(uc_shape, uc_string);
 568
 569                 // now do the usual logical->visual reordering
 570         int size=uc_shape.size();
 571 #ifdef HAVE_FRIBIDI
 572         FriBidiCharType dir=FRIBIDI_TYPE_ON;
 573         uc_visual.resize(size);
 574         // gaaanz lahm, aber anders geht das leider nicht, sorry.
 575         FriBidiChar array[size], target[size];
 576         std::copy(uc_shape.begin(), uc_shape.end(), array);
 577         fribidi_log2vis(array, size, &dir, target, 0, 0, 0);
 578         uc_visual.assign(target, target+size);
 579 #else
 580         uc_visual=uc_shape;
 581 #endif
 582
 583         glyphs.reserve(size);
 584
 585         int nextflags = 0;
 586
 587         for (std::vector<unsigned long>::const_iterator i(uc_visual.begin());
 588                 i != uc_visual.end(); ++i)
 589         {
 590                 int isprintable=1;
 591                 int flags = nextflags;
 592                 nextflags = 0;
 593                 unsigned long chr = *i;
 594
 595                 if (!(rflags&RS_DIRECT))
 596                 {
 597                         switch (chr)
 598                         {
 599                         case '\\':
 600                         {
 601                                 unsigned long c = *(i+1);
 602                                 switch (c)
 603                                 {
 604                                         case 'n':
 605                                                 i++;
 606                                                 goto newline;
 607                                         case 't':
 608                                                 i++;
 609                                                 goto tab;
 610                                         case 'r':
 611                                                 i++;
 612                                                 goto nprint;
 613                                         default:
 614                                         ;
 615                                 }
 616                                 break;
 617                         }
 618                         case '\t':
 619 tab:            isprintable=0;
 620                                 cursor+=ePoint(current_font->tabwidth, 0);
 621                                 cursor-=ePoint(cursor.x()%current_font->tabwidth, 0);
 622                                 break;
 623                         case 0x8A:
 624                         case 0xE08A:
 625                         case '\n':
 626 newline:isprintable=0;
 627                                 newLine(rflags);
 628                                 nextflags|=GS_ISFIRST;
 629                                 break;
 630                         case '\r':
 631                         case 0x86: case 0xE086:
 632                         case 0x87: case 0xE087:
 633 nprint: isprintable=0;
 634                                 break;
 635                         case 0xAD: // soft-hyphen
 636                                 flags |= GS_SOFTHYPHEN;
 637                                 chr = 0x2010; /* hyphen */
 638                                 break;
 639                         case 0x2010:
 640                         case '-':
 641                                 flags |= GS_HYPHEN;
 642                                 break;
 643                         case ' ':
 644                                 flags|=GS_ISSPACE;
 645                         default:
 646                                 break;
 647                         }
 648                 }
 649                 if (isprintable)
 650                 {
 651                         FT_UInt index = 0;
 652
 653                                 /* FIXME: our font doesn't seem to have a hyphen, so use hyphen-minus for it. */
 654                         if (chr == 0x2010)
 655                                 chr = '-';
 656
 657                         if (forced_replaces.find(chr) == forced_replaces.end())
 658                                 index=(rflags&RS_DIRECT)? chr : FT_Get_Char_Index(current_face, chr);
 659
 660                         if (!index)
 661                         {
 662                                 if (replacement_face)
 663                                         index=(rflags&RS_DIRECT)? chr : FT_Get_Char_Index(replacement_face, chr);
 664
 665                                 if (!index)
 666                                         eDebug("unicode U+%4lx not present", chr);
 667                                 else
 668                                         appendGlyph(replacement_font, replacement_face, index, flags, rflags);
 669                         } else
 670                                 appendGlyph(current_font, current_face, index, flags, rflags);
 671                 }
 672         }
 673         bboxValid=false;
 674         calc_bbox();
 675 #ifdef HAVE_FRIBIDI
 676         if (dir & FRIBIDI_MASK_RTL)
 677         {
 678                 realign(dirRight);
 679                 doTopBottomReordering=true;
 680         }
 681 #endif
 682
 683         if (charCount)
 684         {
 685                 lineOffsets.push_back(cursor.y());
 686                 lineChars.push_back(charCount);
 687                 charCount=0;
 688         }
 689
 690         return 0;
 691 }
 692
 693 void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, const gRGB &foreground)
 694 {
 695         singleLock s(ftlock);
 696
 697         if (!current_font)
 698                 return;
 699
 700         if ((FTC_Manager_LookupFace(fontRenderClass::instance->cacheManager,
 701                                     current_font->scaler.face_id,
 702                                     &current_face) < 0) ||
 703             (FTC_Manager_LookupSize(fontRenderClass::instance->cacheManager,
 704                                     &current_font->scaler,
 705                                     &current_font->size) < 0))
 706         {
 707                 eDebug("FTC_Manager_Lookup_Size failed!");
 708                 return;
 709         }
 710
 711         ePtr<gPixmap> target;
 712         dc.getPixmap(target);
 713         gSurface *surface = target->surface;
 714
 715         register int opcode;
 716
 717         gColor *lookup8, lookup8_invert[16];
 718         gColor *lookup8_normal=0;
 719
 720         __u16 lookup16_normal[16], lookup16_invert[16], *lookup16;
 721         __u32 lookup32_normal[16], lookup32_invert[16], *lookup32;
 722
 723         if (surface->bpp == 8)
 724         {
 725                 if (surface->clut.data)
 726                 {
 727                         lookup8_normal=getColor(surface->clut, background, foreground).lookup;
 728
 729                         int i;
 730                         for (i=0; i<16; ++i)
 731                                 lookup8_invert[i] = lookup8_normal[i^0xF];
 732
 733                         opcode=0;
 734                 } else
 735                         opcode=1;
 736         } else if (surface->bpp == 16)
 737         {
 738                 opcode=2;
 739                 for (int i=0; i<16; ++i)
 740                 {
 741 #define BLEND(y, x, a) (y + (((x-y) * a)>>8))
 742                         unsigned char da = background.a, dr = background.r, dg = background.g, db = background.b;
 743                         int sa = i * 16;
 744                         if (sa < 256)
 745                         {
 746                                 dr = BLEND(background.r, foreground.r, sa) & 0xFF;
 747                                 dg = BLEND(background.g, foreground.g, sa) & 0xFF;
 748                                 db = BLEND(background.b, foreground.b, sa) & 0xFF;
 749                         }
 750 #undef BLEND
 751 #if BYTE_ORDER == LITTLE_ENDIAN
 752                         lookup16_normal[i] = bswap_16(((db >> 3) << 11) | ((dg >> 2) << 5) | (dr >> 3));
 753 #else
 754                         lookup16_normal[i] = ((db >> 3) << 11) | ((dg >> 2) << 5) | (dr >> 3);
 755 #endif
 756                         da ^= 0xFF;
 757                 }
 758                 for (int i=0; i<16; ++i)
 759                         lookup16_invert[i]=lookup16_normal[i^0xF];
 760         } else if (surface->bpp == 32)
 761         {
 762                 opcode=3;
 763                 for (int i=0; i<16; ++i)
 764                 {
 765 #define BLEND(y, x, a) (y + (((x-y) * a)>>8))
 766
 767                         unsigned char da = background.a, dr = background.r, dg = background.g, db = background.b;
 768                         int sa = i * 16;
 769                         if (sa < 256)
 770                         {
 771                                 da = BLEND(background.a, foreground.a, sa) & 0xFF;
 772                                 dr = BLEND(background.r, foreground.r, sa) & 0xFF;
 773                                 dg = BLEND(background.g, foreground.g, sa) & 0xFF;
 774                                 db = BLEND(background.b, foreground.b, sa) & 0xFF;
 775                         }
 776 #undef BLEND
 777                         da ^= 0xFF;
 778                         lookup32_normal[i]=db | (dg << 8) | (dr << 16) | (da << 24);;
 779                 }
 780                 for (int i=0; i<16; ++i)
 781                         lookup32_invert[i]=lookup32_normal[i^0xF];
 782         } else
 783         {
 784                 eWarning("can't render to %dbpp", surface->bpp);
 785                 return;
 786         }
 787
 788         gRegion area(eRect(0, 0, surface->x, surface->y));
 789         gRegion clip = dc.getClip() & area;
 790
 791         int buffer_stride=surface->stride;
 792
 793         for (unsigned int c = 0; c < clip.rects.size(); ++c)
 794         {
 795                 std::list<int>::reverse_iterator line_offs_it(lineOffsets.rbegin());
 796                 std::list<int>::iterator line_chars_it(lineChars.begin());
 797                 int line_offs=0;
 798                 int line_chars=0;
 799                 for (glyphString::iterator i(glyphs.begin()); i != glyphs.end(); ++i, --line_chars)
 800                 {
 801                         while(!line_chars)
 802                         {
 803                                 line_offs = *(line_offs_it++);
 804                                 line_chars = *(line_chars_it++);
 805                         }
 806
 807                         if (i->flags & GS_SOFTHYPHEN)
 808                                 continue;
 809
 810                         if (!(i->flags & GS_INVERT))
 811                         {
 812                                 lookup8 = lookup8_normal;
 813                                 lookup16 = lookup16_normal;
 814                                 lookup32 = lookup32_normal;
 815                         } else
 816                         {
 817                                 lookup8 = lookup8_invert;
 818                                 lookup16 = lookup16_invert;
 819                                 lookup32 = lookup32_invert;
 820                         }
 821
 822                         static FTC_SBit glyph_bitmap;
 823                         if (fontRenderClass::instance->getGlyphBitmap(&i->font->font, i->glyph_index, &glyph_bitmap))
 824                                 continue;
 825                         int rx=i->x+glyph_bitmap->left + offset.x();
 826                         int ry=(doTopBottomReordering ? line_offs : i->y) - glyph_bitmap->top + offset.y();
 827
 828                         __u8 *d=(__u8*)(surface->data)+buffer_stride*ry+rx*surface->bypp;
 829                         __u8 *s=glyph_bitmap->buffer;
 830                         register int sx=glyph_bitmap->width;
 831                         int sy=glyph_bitmap->height;
 832                         if ((sy+ry) >= clip.rects[c].bottom())
 833                                 sy=clip.rects[c].bottom()-ry;
 834                         if ((sx+rx) >= clip.rects[c].right())
 835                                 sx=clip.rects[c].right()-rx;
 836                         if (rx < clip.rects[c].left())
 837                         {
 838                                 int diff=clip.rects[c].left()-rx;
 839                                 s+=diff;
 840                                 sx-=diff;
 841                                 rx+=diff;
 842                                 d+=diff*surface->bypp;
 843                         }
 844                         if (ry < clip.rects[c].top())
 845                         {
 846                                 int diff=clip.rects[c].top()-ry;
 847                                 s+=diff*glyph_bitmap->pitch;
 848                                 sy-=diff;
 849                                 ry+=diff;
 850                                 d+=diff*buffer_stride;
 851                         }
 852                         if (sx>0)
 853                         {
 854                                 switch(opcode) {
 855                                 case 0: // 4bit lookup to 8bit
 856                                         for (int ay=0; ay<sy; ay++)
 857                                         {
 858                                                 register __u8 *td=d;
 859                                                 register int ax;
 860                                                 for (ax=0; ax<sx; ax++)
 861                                                 {
 862                                                         register int b=(*s++)>>4;
 863                                                         if(b)
 864                                                                 *td++=lookup8[b];
 865                                                         else
 866                                                                 td++;
 867                                                 }
 868                                                 s+=glyph_bitmap->pitch-sx;
 869                                                 d+=buffer_stride;
 870                                         }
 871                                         break;
 872                                 case 1: // 8bit direct
 873                                         for (int ay=0; ay<sy; ay++)
 874                                         {
 875                                                 register __u8 *td=d;
 876                                                 register int ax;
 877                                                 for (ax=0; ax<sx; ax++)
 878                                                 {
 879                                                         register int b=*s++;
 880                                                         *td++^=b;
 881                                                 }
 882                                                 s+=glyph_bitmap->pitch-sx;
 883                                                 d+=buffer_stride;
 884                                         }
 885                                         break;
 886                                 case 2: // 16bit
 887                                         for (int ay=0; ay<sy; ay++)
 888                                         {
 889                                                 register __u16 *td=(__u16*)d;
 890                                                 register int ax;
 891                                                 for (ax=0; ax<sx; ax++)
 892                                                 {
 893                                                         register int b=(*s++)>>4;
 894                                                         if(b)
 895                                                                 *td++=lookup16[b];
 896                                                         else
 897                                                                 td++;
 898                                                 }
 899                                                 s+=glyph_bitmap->pitch-sx;
 900                                                 d+=buffer_stride;
 901                                         }
 902                                         break;
 903                                 case 3: // 32bit
 904                                         for (int ay=0; ay<sy; ay++)
 905                                         {
 906                                                 register __u32 *td=(__u32*)d;
 907                                                 register int ax;
 908                                                 for (ax=0; ax<sx; ax++)
 909                                                 {
 910                                                         register int b=(*s++)>>4;
 911                                                         if(b)
 912                                                                 *td++=lookup32[b];
 913                                                         else
 914                                                                 td++;
 915                                                 }
 916                                                 s+=glyph_bitmap->pitch-sx;
 917                                                 d+=buffer_stride;
 918                                         }
 919                                 default:
 920                                         break;
 921                                 }
 922                         }
 923                 }
 924         }
 925 }
 926
 927 void eTextPara::realign(int dir)        // der code hier ist ein wenig merkwuerdig.
 928 {
 929         glyphString::iterator begin(glyphs.begin()), c(glyphs.begin()), end(glyphs.begin()), last;
 930         if (dir==dirLeft)
 931                 return;
 932         while (c != glyphs.end())
 933         {
 934                 int linelength=0;
 935                 int numspaces=0, num=0;
 936                 begin=end;
 937
 938                 ASSERT( end != glyphs.end());
 939
 940                         // zeilenende suchen
 941                 do {
 942                         last=end;
 943                         ++end;
 944                 } while ((end != glyphs.end()) && (!(end->flags&GS_ISFIRST)));
 945                         // end zeigt jetzt auf begin der naechsten zeile
 946
 947                 for (c=begin; c!=end; ++c)
 948                 {
 949                                 // space am zeilenende skippen
 950                         if ((c==last) && (c->flags&GS_ISSPACE))
 951                                 continue;
 952
 953                         if (c->flags&GS_ISSPACE)
 954                                 numspaces++;
 955                         linelength+=c->w;
 956                         num++;
 957                 }
 958
 959                 switch (dir)
 960                 {
 961                 case dirRight:
 962                 case dirCenter:
 963                 {
 964                         int offset=area.width()-linelength;
 965                         if (dir==dirCenter)
 966                                 offset/=2;
 967                         offset+=area.left();
 968                         while (begin != end)
 969                         {
 970                                 begin->bbox.moveBy(offset-begin->x,0);
 971                                 begin->x=offset;
 972                                 offset+=begin->w;
 973                                 ++begin;
 974                         }
 975                         break;
 976                 }
 977                 case dirBlock:
 978                 {
 979                         if (end == glyphs.end())                // letzte zeile linksbuendig lassen
 980                                 continue;
 981                         int spacemode;
 982                         if (numspaces)
 983                                 spacemode=1;
 984                         else
 985                                 spacemode=0;
 986                         if ((!spacemode) && (num<2))
 987                                 break;
 988                         int off=(area.width()-linelength)*256/(spacemode?numspaces:(num-1));
 989                         int curoff=0;
 990                         while (begin != end)
 991                         {
 992                                 int doadd=0;
 993                                 if ((!spacemode) || (begin->flags&GS_ISSPACE))
 994                                         doadd=1;
 995                                 begin->x+=curoff>>8;
 996                                 begin->bbox.moveBy(curoff>>8,0);
 997                                 if (doadd)
 998                                         curoff+=off;
 999                                 ++begin;
1000                         }
1001                         break;
1002                 }
1003                 }
1004         }
1005         bboxValid=false;
1006         calc_bbox();
1007 }
1008
1009 void eTextPara::clear()
1010 {
1011         singleLock s(ftlock);
1012
1013         current_font = 0;
1014         replacement_font = 0;
1015
1016         glyphs.clear();
1017 }
1018
1019 eAutoInitP0<fontRenderClass> init_fontRenderClass(eAutoInitNumbers::graphic-1, "Font Render Class");