1 #include <lib/gdi/font.h>
10 // use this for init Freetype...
12 #include FT_FREETYPE_H
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>
22 // until we have it in the cdk
25 #include <fribidi/fribidi.h>
30 fontRenderClass *fontRenderClass::instance;
32 static pthread_mutex_t ftlock=PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
33 static pthread_mutex_t refcntlck=PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
35 static FTC_Font cache_current_font=0;
37 struct fntColorCacheKey
40 fntColorCacheKey(const gRGB &start, const gRGB &end)
41 : start(start), end(end)
44 bool operator <(const fntColorCacheKey &c) const
48 else if (start == c.start)
54 std::map<fntColorCacheKey,gLookup> colorcache;
56 static gLookup &getColor(const gPalette &pal, const gRGB &start, const gRGB &end)
58 fntColorCacheKey key(start, end);
59 std::map<fntColorCacheKey,gLookup>::iterator i=colorcache.find(key);
60 if (i != colorcache.end())
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);
72 fontRenderClass *fontRenderClass::getInstance()
77 FT_Error myFTC_Face_Requester(FTC_FaceID face_id,
79 FT_Pointer request_data,
82 return ((fontRenderClass*)request_data)->FTC_Face_Requester(face_id, aface);
86 FT_Error fontRenderClass::FTC_Face_Requester(FTC_FaceID face_id, FT_Face* aface)
88 fontListEntry *font=(fontListEntry *)face_id;
92 // eDebug("[FONT] FTC_Face_Requester (%s)", font->face.c_str());
95 if ((error=FT_New_Face(library, font->filename.c_str(), 0, aface)))
97 eDebug(" failed: %s", strerror(error));
100 FT_Select_Charmap(*aface, ft_encoding_unicode);
104 FTC_FaceID fontRenderClass::getFaceID(const std::string &face)
106 for (fontListEntry *f=font; f; f=f->next)
109 return (FTC_FaceID)f;
114 FT_Error fontRenderClass::getGlyphBitmap(FTC_Image_Desc *font, FT_ULong glyph_index, FTC_SBit *sbit)
116 FT_Error res=FTC_SBit_Cache_Lookup(sbitsCache, font, glyph_index, sbit);
120 std::string fontRenderClass::AddFont(const std::string &filename, const std::string &name, int scale)
122 eDebugNoNewLine("[FONT] adding font %s...", filename.c_str());
125 fontListEntry *n=new fontListEntry;
129 singleLock s(ftlock);
131 if ((error=FT_New_Face(library, filename.c_str(), 0, &face)))
132 eFatal(" failed: %s", strerror(error));
134 n->filename=filename;
139 eDebug("OK (%s)", n->face.c_str());
145 fontRenderClass::fontListEntry::~fontListEntry()
149 fontRenderClass::fontRenderClass(): fb(fbClass::getInstance())
152 eDebug("[FONT] initializing lib...");
154 if (FT_Init_FreeType(&library))
156 eDebug("[FONT] initializing failed.");
160 eDebug("[FONT] loading fonts...");
164 int maxbytes=4*1024*1024;
165 eDebug("[FONT] Intializing font cache, using max. %dMB...", maxbytes/1024/1024);
168 if (FTC_Manager_New(library, 8, 8, maxbytes, myFTC_Face_Requester, this, &cacheManager))
170 eDebug("[FONT] initializing font cache failed!");
175 eDebug("[FONT] initializing font cache manager error.");
178 if (FTC_SBit_Cache_New(cacheManager, &sbitsCache))
180 eDebug("[FONT] initializing font cache sbit failed!");
183 if (FTC_Image_Cache_New(cacheManager, &imageCache))
185 eDebug("[FONT] initializing font cache imagecache failed!");
191 float fontRenderClass::getLineHeight(const gFont& font)
196 getFont(fnt, font.family.c_str(), font.pointSize);
199 singleLock s(ftlock);
200 FT_Face current_face;
201 if (FTC_Manager_Lookup_Size(cacheManager, &fnt->font.font, ¤t_face, &fnt->size)<0)
204 eDebug("FTC_Manager_Lookup_Size failed!");
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;
212 fontRenderClass::~fontRenderClass()
214 singleLock s(ftlock);
217 fontListEntry *f=font;
221 // auskommentiert weil freetype und enigma die kritische masse des suckens ueberschreiten.
222 // FTC_Manager_Done(cacheManager);
223 // FT_Done_FreeType(library);
226 int fontRenderClass::getFont(ePtr<Font> &font, const std::string &face, int size, int tabwidth)
228 FTC_FaceID id=getFaceID(face);
234 font = new Font(this, id, size * ((fontListEntry*)id)->scale / 100, tabwidth);
238 void addFont(const char *filename, const char *alias, int scale_factor, int is_replacement)
240 fontRenderClass::getInstance()->AddFont(filename, alias, scale_factor);
242 eTextPara::setReplacementFont(alias);
247 Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): tabwidth(tw)
250 font.font.face_id=faceid;
251 font.font.pix_width = isize;
252 font.font.pix_height = isize;
253 font.image_type = ftc_image_grays;
257 // font.image_type |= ftc_image_flag_autohinted;
260 FT_Error Font::getGlyphBitmap(FT_ULong glyph_index, FTC_SBit *sbit)
262 return renderer->getGlyphBitmap(&font, glyph_index, sbit);
269 DEFINE_REF(eTextPara);
271 int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt glyphIndex, int flags, int rflags)
274 if (current_font->getGlyphBitmap(glyphIndex, &glyph))
287 glyphString::reverse_iterator i(glyphs.rbegin());
288 /* find first possibility (from end to begin) to break */
289 while (i != glyphs.rend())
291 if (i->flags&(GS_CANBREAK|GS_ISFIRST)) /* stop on either space/hyphen/shy or start of line (giving up) */
298 if (i != glyphs.rend() /* ... we found anything */
299 && (i->flags&GS_CANBREAK) /* ...and this is a space/hyphen/soft-hyphen */
300 && (!(i->flags & GS_ISFIRST)) /* ...and this is not an start of line (line with just a single space/hyphen) */
301 && cnt ) /* ... and there are actual non-space characters after this */
303 /* if we have a soft-hyphen, and used that for breaking, turn it into a real hyphen */
304 if (i->flags & GS_SOFTHYPHEN)
306 i->flags &= ~GS_SOFTHYPHEN;
307 i->flags |= GS_HYPHEN;
309 --i; /* skip the space/hypen/softhyphen */
310 int linelength=cursor.x()-i->x;
311 i->flags|=GS_ISFIRST; /* make this a line start */
312 ePoint offset=ePoint(i->x, i->y);
316 /* and move everything to the end into the next line. */
321 i->bbox.moveBy(-offset.x(), -offset.y());
322 } while (i-- != glyphs.rbegin()); // rearrange them into the next line
323 cursor+=ePoint(linelength, 0); // put the cursor after that line
334 int xadvance=glyph->xadvance, kern=0;
336 if (previous && use_kerning)
339 FT_Get_Kerning(current_face, previous, glyphIndex, ft_kerning_default, &delta);
344 ng.bbox.setLeft( (flags&GS_ISFIRST|cursor.x()-1)+glyph->left );
345 ng.bbox.setTop( cursor.y() - glyph->top );
346 ng.bbox.setWidth( glyph->width );
347 ng.bbox.setHeight( glyph->height );
350 ng.bbox.setWidth(xadvance);
352 ng.x = cursor.x()+kern;
355 ng.font = current_font;
356 ng.glyph_index = glyphIndex;
358 glyphs.push_back(ng);
360 /* when we have a SHY, don't xadvance. It will either be the last in the line (when used for breaking), or not displayed. */
361 if (!(flags & GS_SOFTHYPHEN))
362 cursor += ePoint(xadvance, 0);
363 previous = glyphIndex;
367 void eTextPara::calc_bbox()
378 glyphString::iterator i(glyphs.begin());
383 for (; i != glyphs.end(); ++i)
385 if (i->flags & (GS_ISSPACE|GS_SOFTHYPHEN))
387 if ( i->bbox.left() < boundBox.left() )
388 boundBox.setLeft( i->bbox.left() );
389 if ( i->bbox.top() < boundBox.top() )
390 boundBox.setTop( i->bbox.top() );
391 if ( i->bbox.right() > boundBox.right() )
392 boundBox.setRight( i->bbox.right() );
393 if ( i->bbox.bottom() > boundBox.bottom() )
394 boundBox.setBottom( i->bbox.bottom() );
396 // eDebug("boundBox left = %i, top = %i, right = %i, bottom = %i", boundBox.left(), boundBox.top(), boundBox.right(), boundBox.bottom() );
399 void eTextPara::newLine(int flags)
401 if (maximum.width()<cursor.x())
402 maximum.setWidth(cursor.x());
405 int linegap=current_face->size->metrics.height-(current_face->size->metrics.ascender+current_face->size->metrics.descender);
406 cursor+=ePoint(0, (current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap)>>6);
407 if (maximum.height()<cursor.y())
408 maximum.setHeight(cursor.y());
412 eTextPara::~eTextPara()
417 void eTextPara::setFont(const gFont *font)
419 ePtr<Font> fnt, replacement;
420 fontRenderClass::getInstance()->getFont(fnt, font->family.c_str(), font->pointSize);
422 eWarning("FONT '%s' MISSING!", font->family.c_str());
423 fontRenderClass::getInstance()->getFont(replacement, replacement_facename.c_str(), font->pointSize);
424 setFont(fnt, replacement);
427 std::string eTextPara::replacement_facename;
428 std::set<int> eTextPara::forced_replaces;
430 void eTextPara::setFont(Font *fnt, Font *replacement)
435 replacement_font=replacement;
436 singleLock s(ftlock);
438 // we ask for replacment_font first becauseof the cache
439 if (replacement_font)
441 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager,
442 &replacement_font->font.font, &replacement_face,
443 &replacement_font->size)<0)
445 eDebug("FTC_Manager_Lookup_Size failed!");
451 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager, ¤t_font->font.font, ¤t_face, ¤t_font->size)<0)
453 eDebug("FTC_Manager_Lookup_Size failed!");
457 cache_current_font=¤t_font->font.font;
459 use_kerning=FT_HAS_KERNING(current_face);
463 shape (std::vector<unsigned long> &string, const std::vector<unsigned long> &text);
465 int eTextPara::renderString(const char *string, int rflags)
467 singleLock s(ftlock);
474 cursor=ePoint(area.x(), area.y()+(current_face->size->metrics.ascender>>6));
478 if (¤t_font->font.font != cache_current_font)
480 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager, ¤t_font->font.font, ¤t_face, ¤t_font->size)<0)
482 eDebug("FTC_Manager_Lookup_Size failed!");
485 cache_current_font=¤t_font->font.font;
488 std::vector<unsigned long> uc_string, uc_visual;
490 uc_string.reserve(strlen(string));
492 const char *p = string ? string : "";
496 unsigned int unicode=(unsigned char)*p++;
498 if (unicode & 0x80) // we have (hopefully) UTF8 here, and we assume that the encoding is VALID
500 if ((unicode & 0xE0)==0xC0) // two bytes
505 unicode|=(*p++)&0x3F;
506 } else if ((unicode & 0xF0)==0xE0) // three bytes
511 unicode|=(*p++)&0x3F;
514 unicode|=(*p++)&0x3F;
515 } else if ((unicode & 0xF8)==0xF0) // four bytes
520 unicode|=(*p++)&0x3F;
523 unicode|=(*p++)&0x3F;
526 unicode|=(*p++)&0x3F;
529 uc_string.push_back(unicode);
532 std::vector<unsigned long> uc_shape;
534 // character -> glyph conversion
535 shape(uc_shape, uc_string);
537 // now do the usual logical->visual reordering
539 FriBidiCharType dir=FRIBIDI_TYPE_ON;
541 int size=uc_shape.size();
542 uc_visual.resize(size);
543 // gaaanz lahm, aber anders geht das leider nicht, sorry.
544 FriBidiChar array[size], target[size];
545 std::copy(uc_shape.begin(), uc_shape.end(), array);
546 fribidi_log2vis(array, size, &dir, target, 0, 0, 0);
547 uc_visual.assign(target, target+size);
553 glyphs.reserve(uc_visual.size());
557 for (std::vector<unsigned long>::const_iterator i(uc_visual.begin());
558 i != uc_visual.end(); ++i)
561 int flags = nextflags;
563 unsigned long chr = *i;
565 if (!(rflags&RS_DIRECT))
571 unsigned long c = *(i+1);
590 cursor+=ePoint(current_font->tabwidth, 0);
591 cursor-=ePoint(cursor.x()%current_font->tabwidth, 0);
596 newline:isprintable=0;
598 nextflags|=GS_ISFIRST;
601 case 0x86: case 0xE086:
602 case 0x87: case 0xE087:
603 nprint: isprintable=0;
605 case 0xAD: // soft-hyphen
606 flags |= GS_SOFTHYPHEN;
607 chr = 0x2010; /* hyphen */
623 /* FIXME: our font doesn't seem to have a hyphen, so use hyphen-minus for it. */
627 if (forced_replaces.find(chr) == forced_replaces.end())
628 index=(rflags&RS_DIRECT)? chr : FT_Get_Char_Index(current_face, chr);
632 if (replacement_face)
633 index=(rflags&RS_DIRECT)? chr : FT_Get_Char_Index(replacement_face, chr);
636 eDebug("unicode U+%4lx not present", chr);
638 appendGlyph(replacement_font, replacement_face, index, flags, rflags);
640 appendGlyph(current_font, current_face, index, flags, rflags);
646 if (dir & FRIBIDI_MASK_RTL)
652 void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, const gRGB &foreground)
654 singleLock s(ftlock);
659 if (¤t_font->font.font != cache_current_font)
661 if (FTC_Manager_Lookup_Size(fontRenderClass::instance->cacheManager, ¤t_font->font.font, ¤t_face, ¤t_font->size)<0)
663 eDebug("FTC_Manager_Lookup_Size failed!");
666 cache_current_font=¤t_font->font.font;
669 ePtr<gPixmap> target;
670 dc.getPixmap(target);
671 gSurface *surface = target->surface;
675 gColor *lookup8, lookup8_invert[16];
676 gColor *lookup8_normal=0;
678 __u32 lookup32_normal[16], lookup32_invert[16], *lookup32;
680 if (surface->bpp == 8)
682 if (surface->clut.data)
684 lookup8_normal=getColor(surface->clut, background, foreground).lookup;
688 lookup8_invert[i] = lookup8_normal[i^0xF];
693 } else if (surface->bpp == 32)
697 for (int i=0; i<16; ++i)
699 #define BLEND(y, x, a) (y + (((x-y) * a)>>8))
701 unsigned char da = background.a, dr = background.r, dg = background.g, db = background.b;
705 da = BLEND(background.a, foreground.a, sa) & 0xFF;
706 dr = BLEND(background.r, foreground.r, sa) & 0xFF;
707 dg = BLEND(background.g, foreground.g, sa) & 0xFF;
708 db = BLEND(background.b, foreground.b, sa) & 0xFF;
712 lookup32_normal[i]=db | (dg << 8) | (dr << 16) | (da << 24);;
714 for (int i=0; i<16; ++i)
715 lookup32_invert[i]=lookup32_normal[i^0xF];
718 eWarning("can't render to %dbpp", surface->bpp);
722 gRegion area(eRect(0, 0, surface->x, surface->y));
723 gRegion clip = dc.getClip() & area;
725 int buffer_stride=surface->stride;
727 for (unsigned int c = 0; c < clip.rects.size(); ++c)
729 for (glyphString::iterator i(glyphs.begin()); i != glyphs.end(); ++i)
731 if (i->flags & GS_SOFTHYPHEN)
734 if (!(i->flags & GS_INVERT))
736 lookup8 = lookup8_normal;
737 lookup32 = lookup32_normal;
740 lookup8 = lookup8_invert;
741 lookup32 = lookup32_invert;
744 static FTC_SBit glyph_bitmap;
745 if (fontRenderClass::instance->getGlyphBitmap(&i->font->font, i->glyph_index, &glyph_bitmap))
747 int rx=i->x+glyph_bitmap->left + offset.x();
748 int ry=i->y-glyph_bitmap->top + offset.y();
750 __u8 *d=(__u8*)(surface->data)+buffer_stride*ry+rx*surface->bypp;
751 __u8 *s=glyph_bitmap->buffer;
752 register int sx=glyph_bitmap->width;
753 int sy=glyph_bitmap->height;
754 if ((sy+ry) >= clip.rects[c].bottom())
755 sy=clip.rects[c].bottom()-ry;
756 if ((sx+rx) >= clip.rects[c].right())
757 sx=clip.rects[c].right()-rx;
758 if (rx < clip.rects[c].left())
760 int diff=clip.rects[c].left()-rx;
764 d+=diff*surface->bypp;
766 if (ry < clip.rects[c].top())
768 int diff=clip.rects[c].top()-ry;
769 s+=diff*glyph_bitmap->pitch;
772 d+=diff*buffer_stride;
775 for (int ay=0; ay<sy; ay++)
777 if (!opcode) // 4bit lookup to 8bit
782 for (ax=0; ax<sx; ax++)
784 register int b=(*s++)>>4;
790 } else if (opcode == 1) // 8bit direct
794 for (ax=0; ax<sx; ax++)
801 register __u32 *td=(__u32*)d;
803 for (ax=0; ax<sx; ax++)
805 register int b=(*s++)>>4;
812 s+=glyph_bitmap->pitch-sx;
819 void eTextPara::realign(int dir) // der code hier ist ein wenig merkwuerdig.
821 glyphString::iterator begin(glyphs.begin()), c(glyphs.begin()), end(glyphs.begin()), last;
824 while (c != glyphs.end())
827 int numspaces=0, num=0;
830 ASSERT( end != glyphs.end());
836 } while ((end != glyphs.end()) && (!(end->flags&GS_ISFIRST)));
837 // end zeigt jetzt auf begin der naechsten zeile
839 for (c=begin; c!=end; ++c)
841 // space am zeilenende skippen
842 if ((c==last) && (c->flags&GS_ISSPACE))
845 if (c->flags&GS_ISSPACE)
856 int offset=area.width()-linelength;
862 begin->bbox.moveBy(offset-begin->x,0);
871 if (end == glyphs.end()) // letzte zeile linksbuendig lassen
878 if ((!spacemode) && (num<2))
880 int off=(area.width()-linelength)*256/(spacemode?numspaces:(num-1));
885 if ((!spacemode) || (begin->flags&GS_ISSPACE))
888 begin->bbox.moveBy(curoff>>8,0);
901 void eTextPara::clear()
903 singleLock s(ftlock);
906 replacement_font = 0;
911 eAutoInitP0<fontRenderClass> init_fontRenderClass(eAutoInitNumbers::graphic-1, "Font Render Class");