--- /dev/null
+/* swffont.c
+
+ Functions for loading external fonts.
+
+ Extension module for the rfxswf library.
+ Part of the swftools package.
+
+ Copyright (c) 2003, 2004 Matthias Kramm
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+
+#ifdef USE_FREETYPE
+
+#include <freetype/freetype.h>
+#include <freetype/ftglyph.h>
+#include <freetype/ftsnames.h>
+#include <freetype/ttnameid.h>
+#include <freetype/ftoutln.h>
+
+static int ft_move_to(FT_Vector* _to, void* user)
+{
+ drawer_t* draw = (drawer_t*)user;
+ FPOINT to;
+ to.x = _to->x/256.0;
+ to.y = _to->y/256.0;
+ draw->moveTo(draw, &to);
+ return 0;
+}
+static int ft_line_to(FT_Vector* _to, void* user)
+{
+ drawer_t* draw = (drawer_t*)user;
+ FPOINT to;
+ to.x = _to->x/256.0;
+ to.y = _to->y/256.0;
+ draw->lineTo(draw, &to);
+ return 0;
+}
+static int ft_cubic_to(FT_Vector* _c1, FT_Vector* _c2, FT_Vector* _to, void* user)
+{
+ drawer_t* draw = (drawer_t*)user;
+ FPOINT c1,c2,to;
+ to.x = _to->x/256.0;
+ to.y = _to->y/256.0;
+ c1.x = _c1->x/256.0;
+ c1.y = _c1->y/256.0;
+ c2.x = _c2->x/256.0;
+ c2.y = _c2->y/256.0;
+ draw_cubicTo(draw, &c1, &c2, &to);
+ return 0;
+}
+static int ft_conic_to(FT_Vector* _c, FT_Vector* _to, void* user)
+{
+ drawer_t* draw = (drawer_t*)user;
+ FPOINT c,to;
+ to.x = _to->x/256.0;
+ to.y = _to->y/256.0;
+ c.x = _c->x/256.0;
+ c.y = _c->y/256.0;
+ draw_conicTo(draw, &c, &to);
+ return 0;
+}
+static FT_Outline_Funcs outline_functions =
+{
+ ft_move_to,
+ ft_line_to,
+ ft_conic_to,
+ ft_cubic_to,
+ 0,0
+};
+
+static FT_Library ftlibrary = 0;
+
+SWFFONT* swf_LoadTrueTypeFont(char*filename)
+{
+ FT_Face face;
+ FT_Error error;
+ const char* name;
+ FT_ULong charcode;
+ FT_UInt gindex;
+ SWFFONT* font;
+ int t;
+
+ if(ftlibrary == 0) {
+ if(FT_Init_FreeType(&ftlibrary)) {
+ fprintf(stderr, "Couldn't init freetype library!\n");
+ exit(1);
+ }
+ }
+ error = FT_New_Face(ftlibrary, filename, 0, &face);
+ if(error) {
+ fprintf(stderr, "Couldn't load file %s- not a TTF file?\n", filename);
+ return 0;
+ }
+ if(face->num_glyphs <= 0)
+ return 0;
+
+ font = malloc(sizeof(SWFFONT));
+ memset(font, 0, sizeof(SWFFONT));
+ font->id = -1;
+ font->version = 2;
+ font->layout = malloc(sizeof(SWFLAYOUT));
+ memset(font->layout, 0, sizeof(SWFLAYOUT));
+ font->layout->bounds = malloc(face->num_glyphs*sizeof(SRECT));
+ font->numchars = face->num_glyphs;
+ font->style = ((face->style_flags&FT_STYLE_FLAG_ITALIC)?FONT_STYLE_ITALIC:0)
+ |((face->style_flags&FT_STYLE_FLAG_BOLD)?FONT_STYLE_BOLD:0);
+ font->encoding = FONT_ENCODING_UNICODE;
+ font->glyph2ascii = malloc(face->num_glyphs*sizeof(U16));
+ font->maxascii = 0;
+ memset(font->ascii2glyph, 0, font->maxascii*sizeof(int));
+ font->glyph = malloc(face->num_glyphs*sizeof(SWFGLYPH));
+ memset(font->glyph, 0, face->num_glyphs*sizeof(U16));
+ if(FT_HAS_GLYPH_NAMES(face)) {
+ font->glyphnames = malloc(face->num_glyphs*sizeof(char*));
+ }
+
+ font->layout->ascent = face->ascender; //face->bbox.xMin;
+ font->layout->descent = face->descender; //face->bbox.xMax;
+ font->layout->leading = -face->bbox.xMin;
+ font->layout->kerningcount = 0;
+
+ if(name && *name)
+ font->name = (U8*)strdup(FT_Get_Postscript_Name(face));
+
+/* // Map Glyphs to Unicode, version 1 (quick and dirty):
+ int t;
+ for(t=0;t<65536;t++) {
+ int index = FT_Get_Char_Index(face, t);
+ if(index>=0 && index<face->num_glyphs) {
+ if(font->glyph2ascii[index]<0)
+ font->glyph2ascii[index] = t;
+ }
+ }*/
+
+ // Map Glyphs to Unicode, version 2 (much nicer):
+ // (The third way would be the AGL algorithm, as proposed
+ // by Werner Lemberg on freetype@freetype.org)
+
+ charcode = FT_Get_First_Char(face, &gindex);
+ while(gindex != 0)
+ {
+ if(gindex >= 0 && gindex<face->num_glyphs) {
+ if(!font->glyph2ascii[gindex]) {
+ font->glyph2ascii[gindex] = charcode;
+ if(charcode + 1 > font->maxascii) {
+ font->maxascii = charcode + 1;
+ }
+ }
+ }
+ charcode = FT_Get_Next_Char(face, charcode, &gindex);
+ }
+
+ memset(font->glyph2ascii, 0, face->num_glyphs*sizeof(U16));
+ font->ascii2glyph = malloc(font->maxascii*sizeof(int));
+
+ for(t=0;t<font->maxascii;t++)
+ font->ascii2glyph[t] = FT_Get_Char_Index(face, t);
+
+ for(t=0; t < face->num_glyphs; t++) {
+ FT_Glyph glyph;
+ FT_BBox bbox;
+ char name[128];
+ drawer_t draw;
+ name[0]=0;
+ if(FT_HAS_GLYPH_NAMES(face)) {
+ error = FT_Get_Glyph_Name(face, t, name, 127);
+ if(!error)
+ font->glyphnames[t] = strdup(name);
+ }
+ error = FT_Load_Glyph(face, t, FT_LOAD_NO_BITMAP|FT_LOAD_NO_SCALE);
+ if(error) return 0;
+ error = FT_Get_Glyph(face->glyph, &glyph);
+ if(error) return 0;
+
+ FT_Glyph_Get_CBox(glyph, ft_glyph_bbox_unscaled, &bbox);
+
+ swf_Shape01DrawerInit(&draw, 0);
+
+ error = FT_Outline_Decompose(&face->glyph->outline, &outline_functions, &draw);
+ if(error) return 0;
+
+ draw.finish(&draw);
+
+ font->glyph[t].advance = glyph->advance.x*20/256;
+ font->glyph[t].shape = swf_ShapeDrawerToShape(&draw);
+ //swf_ShapeDrawerGetBBox(&draw);
+ draw.dealloc(&draw);
+
+ font->layout->bounds[t].xmin = (bbox.xMin*5*20)/266;
+ font->layout->bounds[t].ymin = (bbox.yMin*5*20)/266;
+ font->layout->bounds[t].xmax = (bbox.xMax*5*20)/266;
+ font->layout->bounds[t].ymax = (bbox.yMax*5*20)/266;
+
+ FT_Done_Glyph(glyph);
+ }
+
+ FT_Done_Face(face);
+ FT_Done_FreeType(ftlibrary);ftlibrary=0;
+
+ return font;
+}
+#else //USE_FREETYPE
+
+SWFFONT* swf_LoadTrueTypeFont(char*filename)
+{
+ fprintf(stderr, "Warning: no freetype library- not able to load %s\n", filename);
+ return 0;
+}
+
+#endif
+
+#ifdef HAVE_T1LIB
+
+#include <t1lib.h>
+
+SWFFONT* swf_LoadT1Font(char*filename)
+{
+ SWFFONT * font;
+ int nr;
+ float angle,underline;
+ char*fontname,*fullname,*familyname;
+ BBox bbox;
+ int s,num;
+ char*encoding[256];
+ char**charnames;
+ char*charname;
+
+ T1_SetBitmapPad( 16);
+ if ((T1_InitLib(NO_LOGFILE)==NULL)){
+ fprintf(stderr, "Initialization of t1lib failed\n");
+ return 0;
+ }
+ nr = T1_AddFont(filename);
+ T1_LoadFont(nr);
+
+ num = T1_SetDefaultEncoding(encoding);
+ for(;num<256;num++) encoding[num] = 0;
+
+ charnames = T1_GetAllCharNames(nr);
+
+ angle = T1_GetItalicAngle(nr);
+ fontname = T1_GetFontName(nr);
+ fullname = T1_GetFullName(nr);
+ familyname = T1_GetFamilyName(nr);
+ underline = T1_GetUnderlinePosition(nr);
+ bbox = T1_GetFontBBox(nr);
+
+ font = (SWFFONT*)malloc(sizeof(SWFFONT));
+ memset(font, 0, sizeof(SWFFONT));
+
+ font->version = 2;
+ font->name = (U8*)strdup(fontname);
+ font->layout = (SWFLAYOUT*)malloc(sizeof(SWFLAYOUT));
+ memset(font->layout, 0, sizeof(SWFLAYOUT));
+
+ num = 0;
+ charname = charnames[0];
+ while(*charname) {
+ charname++;
+ num++;
+ }
+
+ font->maxascii = 256;
+ font->numchars = num;
+
+ font->style = (/*bold*/0?FONT_STYLE_BOLD:0) + (angle>0.05?FONT_STYLE_ITALIC:0);
+
+ font->glyph = (SWFGLYPH*)malloc(num*sizeof(SWFGLYPH));
+ memset(font->glyph, 0, num*sizeof(SWFGLYPH));
+ font->glyph2ascii = (U16*)malloc(num*sizeof(U16));
+ memset(font->glyph2ascii, 0, num*sizeof(U16));
+ font->ascii2glyph = (int*)malloc(font->maxascii*sizeof(int));
+ memset(font->ascii2glyph, -1, font->maxascii*sizeof(int));
+ font->layout->ascent = (U16)(underline - bbox.lly);
+ font->layout->descent = (U16)(bbox.ury - underline);
+ font->layout->leading = (U16)(font->layout->ascent -
+ font->layout->descent -
+ (bbox.lly - bbox.ury));
+ font->layout->bounds = (SRECT*)malloc(sizeof(SRECT)*num);
+ memset(font->layout->bounds, 0, sizeof(SRECT)*num);
+ font->layout->kerningcount = 0;
+ font->layout->kerning = 0;
+
+ num = 0;
+
+ charname = charnames[0];
+ while(*charname) {
+ int c;
+ T1_OUTLINE * outline = T1_GetCharOutline(nr, c, 100.0, 0);
+ int firstx = outline->dest.x/0xffff;
+
+ font->ascii2glyph[s] = num;
+ font->glyph2ascii[num] = s;
+
+ /* fix bounding box */
+ SHAPE2*shape2;
+ SRECT bbox;
+ shape2 = swf_ShapeToShape2(font->glyph[s].shape);
+ if(!shape2) { fprintf(stderr, "Shape parse error\n");exit(1);}
+ bbox = swf_GetShapeBoundingBox(shape2);
+ swf_Shape2Free(shape2);
+ font->layout->bounds[num] = bbox;
+ //font->glyph[num].advance = (int)(width/6.4); // 128/20
+ font->glyph[num].advance = bbox.xmax/20;
+ if(!font->glyph[num].advance) {
+ font->glyph[num].advance = firstx;
+ }
+ }
+ return font;
+}
+
+#else
+
+SWFFONT* swf_LoadT1Font(char*filename)
+{
+ fprintf(stderr, "Warning: no t1lib- not able to load %s\n", filename);
+ return 0;
+}
+
+#endif
+