fix: e2 didn't start when no sat-frontend was detected
[enigma2.git] / 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
10 // use this for init Freetype...
11 #include <ft2build.h>
12 #include FT_FREETYPE_H
13
14 #include <lib/base/eerror.h>
15 #include <lib/gdi/lcd.h>
16 #include <lib/gdi/grc.h>
17 #include <lib/base/elock.h>
18 #include <lib/base/init.h>
19 #include <lib/base/init_num.h>
20
21 //#define HAVE_FRIBIDI
22 // until we have it in the cdk
23
24 #ifdef HAVE_FRIBIDI
25 #include <fribidi/fribidi.h>
26 #endif
27
28 #include <map>
29
30 fontRenderClass *fontRenderClass::instance;
31
32 static pthread_mutex_t ftlock=PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
33 static pthread_mutex_t refcntlck=PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
34
35 static FTC_Font cache_current_font=0;
36
37 struct fntColorCacheKey
38 {
39         gRGB start, end;
40         fntColorCacheKey(const gRGB &start, const gRGB &end)
41                 : start(start), end(end)
42         {
43         }
44         bool operator <(const fntColorCacheKey &c) const
45         {
46                 if (start < c.start)
47                         return 1;
48                 else if (start == c.start)
49                         return end < c.end;
50                 return 0;
51         }
52 };
53
54 std::map<fntColorCacheKey,gLookup> colorcache;
55
56 static gLookup &getColor(const gPalette &pal, const gRGB &start, const gRGB &end)
57 {
58         fntColorCacheKey key(start, end);
59         std::map<fntColorCacheKey,gLookup>::iterator i=colorcache.find(key);
60         if (i != colorcache.end())
61                 return i->second;
62         gLookup &n=colorcache.insert(std::pair<fntColorCacheKey,gLookup>(key,gLookup())).first->second;
63 //      eDebug("[FONT] creating new font color cache entry %02x%02x%02x%02x .. %02x%02x%02x%02x", start.a, start.r, start.g, start.b,
64 //              end.a, end.r, end.g, end.b);
65         n.build(16, pal, start, end);
66 //      for (int i=0; i<16; i++)
67 //              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);
68 //      eDebug("");
69         return n;
70 }
71
72 fontRenderClass *fontRenderClass::getInstance()
73 {
74         return instance;
75 }
76
77 FT_Error myFTC_Face_Requester(FTC_FaceID        face_id,
78                                                                                                                         FT_Library      library,
79                                                                                                                         FT_Pointer      request_data,
80                                                                                                                         FT_Face*                aface)
81 {
82         return ((fontRenderClass*)request_data)->FTC_Face_Requester(face_id, aface);
83 }
84
85
86 FT_Error fontRenderClass::FTC_Face_Requester(FTC_FaceID face_id, FT_Face* aface)
87 {
88         fontListEntry *font=(fontListEntry *)face_id;
89         if (!font)
90                 return -1;
91         
92 //      eDebug("[FONT] FTC_Face_Requester (%s)", font->face.c_str());
93
94         int error;
95         if ((error=FT_New_Face(library, font->filename.c_str(), 0, aface)))
96         {
97                 eDebug(" failed: %s", strerror(error));
98                 return error;
99         }
100         FT_Select_Charmap(*aface, ft_encoding_unicode);
101         return 0;
102 }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
103
104 FTC_FaceID fontRenderClass::getFaceID(const std::string &face)
105 {
106         for (fontListEntry *f=font; f; f=f->next)
107         {
108                 if (f->face == face)
109                         return (FTC_FaceID)f;
110         }
111         return 0;
112 }
113
114 FT_Error fontRenderClass::getGlyphBitmap(FTC_Image_Desc *font, FT_ULong glyph_index, FTC_SBit *sbit)
115 {
116         FT_Error res=FTC_SBit_Cache_Lookup(sbitsCache, font, glyph_index, sbit);
117         return res;
118 }
119
120 std::string fontRenderClass::AddFont(const std::string &filename, const std::string &name, int scale)
121 {
122         eDebugNoNewLine("[FONT] adding font %s...", filename.c_str());
123         fflush(stdout);
124         int error;
125         fontListEntry *n=new fontListEntry;
126
127         n->scale=scale;
128         FT_Face face;
129         singleLock s(ftlock);
130
131         if ((error=FT_New_Face(library, filename.c_str(), 0, &face)))
132                 eFatal(" failed: %s", strerror(error));
133
134         n->filename=filename;
135         n->face=name;
136         FT_Done_Face(face);
137
138         n->next=font;
139         eDebug("OK (%s)", n->face.c_str());
140         font=n;
141
142         return n->face;
143 }
144
145 fontRenderClass::fontListEntry::~fontListEntry()
146 {
147 }
148
149 fontRenderClass::fontRenderClass(): fb(fbClass::getInstance())
150 {
151         instance=this;
152         eDebug("[FONT] initializing lib...");
153         {
154                 if (FT_Init_FreeType(&library))
155                 {
156                         eDebug("[FONT] initializing failed.");
157                         return;
158                 }
159         }
160         eDebug("[FONT] loading fonts...");
161         fflush(stdout);
162         font=0;
163         
164         int maxbytes=4*1024*1024;
165         eDebug("[FONT] Intializing font cache, using max. %dMB...", maxbytes/1024/1024);
166         fflush(stdout);
167         {
168                 if (FTC_Manager_New(library, 8, 8, maxbytes, myFTC_Face_Requester, this, &cacheManager))
169                 {
170                         eDebug("[FONT] initializing font cache failed!");
171                         return;
172                 }
173                 if (!cacheManager)
174                 {
175                         eDebug("[FONT] initializing font cache manager error.");
176                         return;
177                 }
178                 if (FTC_SBit_Cache_New(cacheManager, &sbitsCache))
179                 {
180                         eDebug("[FONT] initializing font cache sbit failed!");
181                         return;
182                 }
183                 if (FTC_Image_Cache_New(cacheManager, &imageCache))
184                 {
185                         eDebug("[FONT] initializing font cache imagecache failed!");
186                 }
187         }
188         return;
189 }
190
191 float fontRenderClass::getLineHeight(const gFont& font)
192 {
193         if (!instance)
194                 return 0;
195         ePtr<Font> fnt;
196         getFont(fnt, font.family.c_str(), font.pointSize);
197         if (!fnt)
198                 return 0;
199         singleLock s(ftlock);
200         FT_Face current_face;
201         if (FTC_Manager_Lookup_Size(cacheManager, &fnt->font.font, &current_face, &fnt->size)<0)
202         {
203                 delete fnt;
204                 eDebug("FTC_Manager_Lookup_Size failed!");
205                 return 0;
206         }
207         int linegap=current_face->size->metrics.height-(current_face->size->metrics.ascender+current_face->size->metrics.descender);
208         float height=(current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap)/64.0;
209         return height;
210 }
211
212 fontRenderClass::~fontRenderClass()
213 {
214         singleLock s(ftlock);
215         while(font)
216         {
217                 fontListEntry *f=font;
218                 font=font->next;
219                 delete f;
220         }
221 //      auskommentiert weil freetype und enigma die kritische masse des suckens ueberschreiten. 
222 //      FTC_Manager_Done(cacheManager);
223 //      FT_Done_FreeType(library);
224 }
225
226 int fontRenderClass::getFont(ePtr<Font> &font, const std::string &face, int size, int tabwidth)
227 {
228         FTC_FaceID id=getFaceID(face);
229         if (!id)
230         {
231                 font = 0;
232                 return -1;
233         }
234         font = new Font(this, id, size * ((fontListEntry*)id)->scale / 100, tabwidth);
235         return 0;
236 }
237
238 DEFINE_REF(Font);
239
240 Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): tabwidth(tw)
241 {
242         renderer=render;
243         font.font.face_id=faceid;
244         font.font.pix_width     = isize;
245         font.font.pix_height = isize;
246         font.image_type = ftc_image_grays;
247         height=isize;
248         if (tabwidth==-1)
249                 tabwidth=8*isize;
250 //      font.image_type |= ftc_image_flag_autohinted;
251 }
252
253 FT_Error Font::getGlyphBitmap(FT_ULong glyph_index, FTC_SBit *sbit)
254 {
255         return renderer->getGlyphBitmap(&font, glyph_index, sbit);
256 }
257
258 Font::~Font()
259 {
260 }
261
262 DEFINE_REF(eTextPara);
263
264 int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt glyphIndex, int flags, int rflags)
265 {
266         FTC_SBit glyph;
267         if (current_font->getGlyphBitmap(glyphIndex, &glyph))
268                 return 1;
269
270         int nx=cursor.x();
271
272         nx+=glyph->xadvance;
273         
274         if (
275                         (rflags&RS_WRAP) && 
276                         (nx >= area.right())
277                 )
278         {
279                 int cnt = 0;
280                 glyphString::reverse_iterator i(glyphs.rbegin());
281                 while (i != glyphs.rend())
282                 {
283                         if (i->flags&(GS_ISSPACE|GS_ISFIRST))
284                                 break;
285                         cnt++;
286                         ++i;
287                 } 
288                 if (i != glyphs.rend()
289                         && ((i->flags&(GS_ISSPACE|GS_ISFIRST))==GS_ISSPACE)
290                         && cnt )
291                 {
292                         --i;
293                         int linelength=cursor.x()-i->x;
294                         i->flags|=GS_ISFIRST;
295                         ePoint offset=ePoint(i->x, i->y);
296                         newLine(rflags);
297                         offset-=cursor;
298                         do
299                         {
300                                 i->x-=offset.x();
301                                 i->y-=offset.y();
302                                 i->bbox.moveBy(-offset.x(), -offset.y());
303                         }
304                         while (i-- != glyphs.rbegin()); // rearrange them into the next line
305                         cursor+=ePoint(linelength, 0);  // put the cursor after that line
306                 }
307                 else
308                 {
309                         if (cnt)
310                         {
311                                 newLine(rflags);
312                                 flags|=GS_ISFIRST;
313                         }
314                 }
315         }
316
317         int xadvance=glyph->xadvance, kern=0;
318         
319         if (previous && use_kerning)
320         {
321                 FT_Vector delta;
322                 FT_Get_Kerning(current_face, previous, glyphIndex, ft_kerning_default, &delta);
323                 kern=delta.x>>6;
324         }
325
326         pGlyph ng;
327         ng.bbox.setLeft( (flags&GS_ISFIRST|cursor.x()-1)+glyph->left );
328         ng.bbox.setTop( cursor.y() - glyph->top );
329         ng.bbox.setWidth( glyph->width );
330         ng.bbox.setHeight( glyph->height );
331
332         xadvance += kern;
333         ng.bbox.setWidth(xadvance);
334
335         ng.x = cursor.x()+kern;
336         ng.y = cursor.y();
337         ng.w = xadvance;
338         ng.font = current_font;
339         ng.glyph_index = glyphIndex;
340         ng.flags = flags;
341         glyphs.push_back(ng);
342
343         cursor += ePoint(xadvance, 0);
344         previous = glyphIndex;
345         return 0;
346 }
347
348 void eTextPara::calc_bbox()
349 {
350         if (!glyphs.size())
351         {
352                 bboxValid = 0;
353                 boundBox = eRect();
354                 return;
355         }
356         
357         bboxValid = 1;
358
359         glyphString::iterator i(glyphs.begin());
360         
361         boundBox = i->bbox; 
362         ++i;
363
364         for (i ; i != glyphs.end(); ++i)
365         {
366                 if ( i->flags & GS_ISSPACE )
367                         continue;
368                 if ( i->bbox.left() < boundBox.left() )
369                         boundBox.setLeft( i->bbox.left() );
370                 if ( i->bbox.top() < boundBox.top() )
371                         boundBox.setTop( i->bbox.top() );
372                 if ( i->bbox.right() > boundBox.right() )
373                         boundBox.setRight( i->bbox.right() );
374                 if ( i->bbox.bottom() > boundBox.bottom() )
375                         boundBox.setBottom( i->bbox.bottom() );
376         }
377 //      eDebug("boundBox left = %i, top = %i, right = %i, bottom = %i", boundBox.left(), boundBox.top(), boundBox.right(), boundBox.bottom() );
378 }
379
380 void eTextPara::newLine(int flags)
381 {
382         if (maximum.width()<cursor.x())
383                 maximum.setWidth(cursor.x());
384         cursor.setX(left);
385         previous=0;
386         int linegap=current_face->size->metrics.height-(current_face->size->metrics.ascender+current_face->size->metrics.descender);
387         cursor+=ePoint(0, (current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap)>>6);
388         if (maximum.height()<cursor.y())
389                 maximum.setHeight(cursor.y());
390         previous=0;
391 }
392
393 eTextPara::~eTextPara()
394 {
395         clear();
396 }
397
398 void eTextPara::setFont(const gFont *font)
399 {
400         ePtr<Font> fnt, replacement;
401         fontRenderClass::getInstance()->getFont(fnt, font->family.c_str(), font->pointSize);
402         if (!fnt)
403                 eWarning("FONT '%s' MISSING!", font->family.c_str());
404         fontRenderClass::getInstance()->getFont(replacement, replacement_facename.c_str(), font->pointSize);
405         setFont(fnt, replacement);
406 }
407
408 std::string eTextPara::replacement_facename;
409
410 void eTextPara::setFont(Font *fnt, Font *replacement)
411 {
412         if (!fnt)
413                 return;
414         current_font=fnt;
415         replacement_font=replacement;
416         singleLock s(ftlock);
417
418                         // we ask for replacment_font first becauseof the cache
419         if (replacement_font)
420         {
421                 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager, 
422                                 &replacement_font->font.font, &replacement_face, 
423                                 &replacement_font->size)<0)
424                 {
425                         eDebug("FTC_Manager_Lookup_Size failed!");
426                         return;
427                 }
428         }
429         if (current_font)
430         {
431                 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager, &current_font->font.font, &current_face, &current_font->size)<0)
432                 {
433                         eDebug("FTC_Manager_Lookup_Size failed!");
434                         return;
435                 }
436         }
437         cache_current_font=&current_font->font.font;
438         previous=0;
439         use_kerning=FT_HAS_KERNING(current_face);
440 }
441
442 void
443 shape (std::vector<unsigned long> &string, const std::vector<unsigned long> &text);
444
445 int eTextPara::renderString(const std::string &string, int rflags)
446 {
447         singleLock s(ftlock);
448         
449         if (!current_font)
450                 return -1;
451                 
452         if (cursor.y()==-1)
453         {
454                 cursor=ePoint(area.x(), area.y()+(current_face->size->metrics.ascender>>6));
455                 left=cursor.x();
456         }
457                 
458         if (&current_font->font.font != cache_current_font)
459         {
460                 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager, &current_font->font.font, &current_face, &current_font->size)<0)
461                 {
462                         eDebug("FTC_Manager_Lookup_Size failed!");
463                         return -1;
464                 }
465                 cache_current_font=&current_font->font.font;
466         }
467         
468         std::vector<unsigned long> uc_string, uc_visual;
469         uc_string.reserve(string.length());
470         
471         std::string::const_iterator p(string.begin());
472
473         while(p != string.end())
474         {
475                 unsigned int unicode=(unsigned char)*p++;
476
477                 if (unicode & 0x80) // we have (hopefully) UTF8 here, and we assume that the encoding is VALID
478                 {
479                         if ((unicode & 0xE0)==0xC0) // two bytes
480                         {
481                                 unicode&=0x1F;
482                                 unicode<<=6;
483                                 if (p != string.end())
484                                         unicode|=(*p++)&0x3F;
485                         } else if ((unicode & 0xF0)==0xE0) // three bytes
486                         {
487                                 unicode&=0x0F;
488                                 unicode<<=6;
489                                 if (p != string.end())
490                                         unicode|=(*p++)&0x3F;
491                                 unicode<<=6;
492                                 if (p != string.end())
493                                         unicode|=(*p++)&0x3F;
494                         } else if ((unicode & 0xF8)==0xF0) // four bytes
495                         {
496                                 unicode&=0x07;
497                                 unicode<<=6;
498                                 if (p != string.end())
499                                         unicode|=(*p++)&0x3F;
500                                 unicode<<=6;
501                                 if (p != string.end())
502                                         unicode|=(*p++)&0x3F;
503                                 unicode<<=6;
504                                 if (p != string.end())
505                                         unicode|=(*p++)&0x3F;
506                         }
507                 }
508                 uc_string.push_back(unicode);
509         }
510
511         std::vector<unsigned long> uc_shape;
512
513                 // character -> glyph conversion
514         shape(uc_shape, uc_string);
515         
516                 // now do the usual logical->visual reordering
517 #ifdef HAVE_FRIBIDI     
518         FriBidiCharType dir=FRIBIDI_TYPE_ON;
519         {
520                 int size=uc_shape.size();
521                 uc_visual.resize(size);
522                 // gaaanz lahm, aber anders geht das leider nicht, sorry.
523                 FriBidiChar array[size], target[size];
524                 std::copy(uc_shape.begin(), uc_shape.end(), array);
525                 fribidi_log2vis(array, size, &dir, target, 0, 0, 0);
526                 uc_visual.assign(target, target+size);
527         }
528 #else
529         uc_visual=uc_shape;
530 #endif
531
532         glyphs.reserve(uc_visual.size());
533         
534         int nextflags = 0;
535         
536         for (std::vector<unsigned long>::const_iterator i(uc_visual.begin());
537                 i != uc_visual.end(); ++i)
538         {
539                 int isprintable=1;
540                 int flags = nextflags;
541                 nextflags = 0;
542                 if (!(rflags&RS_DIRECT))
543                 {
544                         switch (*i)
545                         {
546                         case '\\':
547                         {
548                                 unsigned long c = *(i+1);
549                                 switch (c)
550                                 {
551                                         case 'n':
552                                                 i++;
553                                                 goto newline;
554                                         case 't':
555                                                 i++;
556                                                 goto tab;
557                                         case 'r':
558                                                 i++;
559                                                 goto nprint;
560                                         default:
561                                         ;
562                                 }
563                                 break;
564                         }
565                         case '\t':
566 tab:            isprintable=0;
567                                 cursor+=ePoint(current_font->tabwidth, 0);
568                                 cursor-=ePoint(cursor.x()%current_font->tabwidth, 0);
569                                 break;
570                         case 0x8A:
571                         case 0xE08A:
572                         case '\n':
573 newline:isprintable=0;
574                                 newLine(rflags);
575                                 nextflags|=GS_ISFIRST;
576                                 break;
577                         case '\r':
578                         case 0x86: case 0xE086:
579                         case 0x87: case 0xE087:
580 nprint: isprintable=0;
581                                 break;
582                         case ' ':
583                                 flags|=GS_ISSPACE;
584                         default:
585                                 break;
586                         }
587                 }
588                 if (isprintable)
589                 {
590                         FT_UInt index;
591
592                         index=(rflags&RS_DIRECT)? *i : FT_Get_Char_Index(current_face, *i);
593
594                         if (!index)
595                         {
596                                 if (replacement_face)
597                                         index=(rflags&RS_DIRECT)? *i : FT_Get_Char_Index(replacement_face, *i);
598
599                                 if (!index)
600                                         eDebug("unicode %d ('%c') not present", *i, *i);
601                                 else
602                                         appendGlyph(replacement_font, replacement_face, index, flags, rflags);
603                         } else
604                                 appendGlyph(current_font, current_face, index, flags, rflags);
605                 }
606         }
607         bboxValid=false;
608         calc_bbox();
609 #ifdef HAVE_FRIBIDI
610         if (dir & FRIBIDI_MASK_RTL)
611                 realign(dirRight);
612 #endif
613         return 0;
614 }
615
616 void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, const gRGB &foreground)
617 {
618         singleLock s(ftlock);
619         
620         if (!current_font)
621                 return;
622
623         if (&current_font->font.font != cache_current_font)
624         {
625                 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager, &current_font->font.font, &current_face, &current_font->size)<0)
626                 {
627                         eDebug("FTC_Manager_Lookup_Size failed!");
628                         return;
629                 }
630                 cache_current_font=&current_font->font.font;
631         }
632
633         ePtr<gPixmap> target;
634         dc.getPixmap(target);
635         gSurface *surface = target->surface;
636
637         register int opcode;
638
639         gColor *lookup8, lookup8_invert[16];
640         gColor *lookup8_normal=0;
641
642         __u32 lookup32_normal[16], lookup32_invert[16], *lookup32;
643         
644         if (surface->bpp == 8)
645         {
646                 if (surface->clut.data)
647                 {
648                         lookup8_normal=getColor(surface->clut, background, foreground).lookup;
649                         
650                         int i;
651                         for (i=0; i<16; ++i)
652                                 lookup8_invert[i] = lookup8_normal[i^0xF];
653                         
654                         opcode=0;
655                 } else
656                         opcode=1;
657         } else if (surface->bpp == 32)
658         {
659                 opcode=3;
660                 if (surface->clut.data)
661                 {
662                         lookup8=getColor(surface->clut, background, foreground).lookup;
663                         for (int i=0; i<16; ++i)
664                                 lookup32_normal[i]=((surface->clut.data[lookup8[i]].a<<24)|
665                                         (surface->clut.data[lookup8[i]].r<<16)|
666                                         (surface->clut.data[lookup8[i]].g<<8)|
667                                         (surface->clut.data[lookup8[i]].b))^0xFF000000;
668                 } else
669                 {
670                         for (int i=0; i<16; ++i)
671                                 lookup32_normal[i]=(0x010101*i)|0xFF000000;
672                 }
673                 for (int i=0; i<16; ++i)
674                         lookup32_invert[i]=lookup32_normal[i^0xF];
675         } else
676         {
677                 eWarning("can't render to %dbpp", surface->bpp);
678                 return;
679         }
680         
681         gRegion area(eRect(0, 0, surface->x, surface->y));
682         gRegion clip = dc.getClip() & area;
683
684         int buffer_stride=surface->stride;
685         
686         for (glyphString::iterator i(glyphs.begin()); i != glyphs.end(); ++i)
687         {
688                 if (!(i->flags & GS_INVERT))
689                 {
690                         lookup8 = lookup8_normal;
691                         lookup32 = lookup32_normal;
692                 } else
693                 {
694                         lookup8 = lookup8_invert;
695                         lookup32 = lookup32_invert;
696                 }
697                 
698                 static FTC_SBit glyph_bitmap;
699                 if (fontRenderClass::instance->getGlyphBitmap(&i->font->font, i->glyph_index, &glyph_bitmap))
700                         continue;
701                 int rx=i->x+glyph_bitmap->left + offset.x();
702                 int ry=i->y-glyph_bitmap->top  + offset.y();
703                 
704                 __u8 *d=(__u8*)(surface->data)+buffer_stride*ry+rx*surface->bypp;
705                 __u8 *s=glyph_bitmap->buffer;
706                 register int sx=glyph_bitmap->width;
707                 int sy=glyph_bitmap->height;
708                 if ((sy+ry) >= clip.extends.bottom())
709                         sy=clip.extends.bottom()-ry;
710                 if ((sx+rx) >= clip.extends.right())
711                         sx=clip.extends.right()-rx;
712                 if (rx < clip.extends.left())
713                 {
714                         int diff=clip.extends.left()-rx;
715                         s+=diff;
716                         sx-=diff;
717                         rx+=diff;
718                         d+=diff*surface->bypp;
719                 }
720                 if (ry < clip.extends.top())
721                 {
722                         int diff=clip.extends.top()-ry;
723                         s+=diff*glyph_bitmap->pitch;
724                         sy-=diff;
725                         ry+=diff;
726                         d+=diff*buffer_stride;
727                 }
728                 if (sx>0)
729                         for (int ay=0; ay<sy; ay++)
730                         {
731                                 if (!opcode)            // 4bit lookup to 8bit
732                                 {
733                                         register __u8 *td=d;
734                                         register int ax;
735                                         
736                                         for (ax=0; ax<sx; ax++)
737                                         {       
738                                                 register int b=(*s++)>>4;
739                                                 if(b)
740                                                         *td++=lookup8[b];
741                                                 else
742                                                         td++;
743                                         }
744                                 } else if (opcode == 1) // 8bit direct
745                                 {
746                                         register __u8 *td=d;
747                                         register int ax;
748                                         for (ax=0; ax<sx; ax++)
749                                         {       
750                                                 register int b=*s++;
751                                                 *td++^=b;
752                                         }
753                                 } else
754                                 {
755                                         register __u32 *td=(__u32*)d;
756                                         register int ax;
757                                         for (ax=0; ax<sx; ax++)
758                                         {       
759                                                 register int b=(*s++)>>4;
760                                                 if(b)
761                                                         *td++=lookup32[b];
762                                                 else
763                                                         td++;
764                                         }
765                                 }
766                                 s+=glyph_bitmap->pitch-sx;
767                                 d+=buffer_stride;
768                         }
769         }
770 }
771
772 void eTextPara::realign(int dir)        // der code hier ist ein wenig merkwuerdig.
773 {
774         glyphString::iterator begin(glyphs.begin()), c(glyphs.begin()), end(glyphs.begin()), last;
775         if (dir==dirLeft)
776                 return;
777         while (c != glyphs.end())
778         {
779                 int linelength=0;
780                 int numspaces=0, num=0;
781                 begin=end;
782                 
783                 ASSERT( end != glyphs.end());
784                 
785                         // zeilenende suchen
786                 do {
787                         last=end;
788                         ++end;
789                 } while ((end != glyphs.end()) && (!(end->flags&GS_ISFIRST)));
790                         // end zeigt jetzt auf begin der naechsten zeile
791                 
792                 for (c=begin; c!=end; ++c)
793                 {
794                                 // space am zeilenende skippen
795                         if ((c==last) && (c->flags&GS_ISSPACE))
796                                 continue;
797
798                         if (c->flags&GS_ISSPACE)
799                                 numspaces++;
800                         linelength+=c->w;
801                         num++;
802                 }
803
804                 if (!num)               // line mit nur einem space
805                         continue;
806
807                 switch (dir)
808                 {
809                 case dirRight:
810                 case dirCenter:
811                 {
812                         int offset=area.width()-linelength;
813                         if (dir==dirCenter)
814                                 offset/=2;
815                         offset+=area.left();
816                         while (begin != end)
817                         {
818                                 begin->bbox.moveBy(offset-begin->x,0);
819                                 begin->x=offset;
820                                 offset+=begin->w;
821                                 ++begin;
822                         }
823                         break;
824                 }
825                 case dirBlock:
826                 {
827                         if (end == glyphs.end())                // letzte zeile linksbuendig lassen
828                                 continue;
829                         int spacemode;
830                         if (numspaces)
831                                 spacemode=1;
832                         else
833                                 spacemode=0;
834                         if ((!spacemode) && (num<2))
835                                 break;
836                         int off=(area.width()-linelength)*256/(spacemode?numspaces:(num-1));
837                         int curoff=0;
838                         while (begin != end)
839                         {
840                                 int doadd=0;
841                                 if ((!spacemode) || (begin->flags&GS_ISSPACE))
842                                         doadd=1;
843                                 begin->x+=curoff>>8;
844                                 begin->bbox.moveBy(curoff>>8,0);
845                                 if (doadd)
846                                         curoff+=off;
847                                 ++begin;
848                         }
849                         break;
850                 }
851                 }
852         }
853         bboxValid=false;
854         calc_bbox();
855 }
856
857 void eTextPara::clear()
858 {
859         singleLock s(ftlock);
860
861         current_font = 0;
862         replacement_font = 0;
863
864         glyphs.clear();
865 }
866
867 eAutoInitP0<fontRenderClass> init_fontRenderClass(eAutoInitNumbers::graphic-1, "Font Render Class");