lib/example/dumpfont.c

   1 /* dumpfont.c
   2
   3    Example for font handling
   4
   5    This tool dumps font information into C files
   6    which can be included to rfxswf applications.
   7    This is an easy way for developers to use
   8    fonts in applications without dealing with
   9    external files.
  10
  11    Usage: ./dumpfont filename.swf > myfont.c
  12
  13    Part of the swftools package.
  14
  15    Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>
  16
  17    This program is free software; you can redistribute it and/or modify
  18    it under the terms of the GNU General Public License as published by
  19    the Free Software Foundation; either version 2 of the License, or
  20    (at your option) any later version.
  21
  22    This program is distributed in the hope that it will be useful,
  23    but WITHOUT ANY WARRANTY; without even the implied warranty of
  24    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25    GNU General Public License for more details.
  26
  27    You should have received a copy of the GNU General Public License
  28    along with this program; if not, write to the Free Software
  29    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  30
  31 #include <stdio.h>
  32 #include <fcntl.h>
  33 #include <unistd.h>
  34 #include "../rfxswf.h"
  35
  36 #define PRINTABLE(a) (((a>0x20)&&(a<0xff)&&(a!='\\'))?a:0x20)
  37
  38 SWF swf;
  39
  40 void DumpFont(SWFFONT * f,char * name)
  41 { int n,i;
  42   int*gpos = malloc(sizeof(int*)*f->numchars);
  43   memset(gpos,0,sizeof(int*)*f->numchars);
  44
  45   // Glyph Shapes Data
  46
  47   n = 0;
  48   printf("U8 Glyphs_%s[] = {\n\t  ",name);
  49
  50   for (i=0;i<f->numchars;i++)
  51     if (f->glyph[i].shape)
  52     { SHAPE * s = f->glyph[i].shape;
  53       int j,l = (s->bitlen+7)/8;
  54       gpos[i] = n;
  55
  56       for (j=0;j<l;j++)
  57       { printf("0x%02x, ",s->data[j]);
  58         if ((n&7)==7) printf("\n\t  ");
  59         n++;
  60       }
  61     }
  62   printf("0x00 };\n");
  63
  64   // SWFFONT function
  65
  66   printf("\nSWFFONT * Font_%s(U16 id)\n",name);
  67   printf("{ SWFFONT * f;\n  int i;\n\n");
  68   printf("  if (!(f=malloc(sizeof(SWFFONT)))) return NULL;\n");
  69   printf("  memset(f,0x00,sizeof(SWFFONT));\n");
  70   printf("  f->id       = id;\n");
  71   printf("  f->version  = %d;\n", f->version);
  72   printf("  f->name     = strdup(\"%s\");\n",f->name);
  73   printf("  f->style    = 0x%02x;\n",f->style);
  74   printf("  f->encoding = 0x%02x;\n",f->encoding);
  75   printf("  f->numchars = %d;\n",f->numchars);
  76   printf("  f->maxascii = %d;\n",f->maxascii);
  77   printf("  f->glyph    = (SWFGLYPH*)malloc(sizeof(SWFGLYPH)*%d);\n",f->numchars);
  78   printf("  f->glyph2ascii = (U16*)malloc(sizeof(U16)*%d);\n",f->numchars);
  79   printf("  f->ascii2glyph = (int*)malloc(sizeof(int)*%d);\n",f->maxascii);
  80   printf("  memset(f->ascii2glyph, -1, sizeof(int)*%d);\n\n", f->maxascii);
  81   if(f->layout) {
  82       printf("  f->layout = (SWFLAYOUT*)malloc(sizeof(SWFLAYOUT));\n");
  83       printf("  f->layout->ascent = %d;\n", f->layout->ascent);
  84       printf("  f->layout->descent = %d;\n", f->layout->descent);
  85       printf("  f->layout->leading = %d;\n", f->layout->leading);
  86       printf("  f->layout->kerningcount = 0;\n");
  87       printf("  f->layout->kerning = 0;\n");
  88       printf("  f->layout->bounds = (SRECT*)malloc(sizeof(SRECT)*%d);\n", f->numchars);
  89       printf("  memset(f->layout->bounds, 0, sizeof(SRECT)*%d);\n\n", f->numchars);
  90   }
  91
  92   for (i=0;i<f->numchars;i++)
  93     if (f->glyph[i].shape)
  94     {
  95         printf("  addGlyph(f,%3i, 0x%03x,%4i, &Glyphs_%s[0x%04x], %4i, ",
  96                i, f->glyph2ascii[i], f->glyph[i].advance, name, gpos[i],
  97                f->glyph[i].shape->bitlen);
  98         if(f->layout && f->layout->bounds) {
  99             printf("%d, %d, %d, %d);",
 100                     f->layout->bounds[i].xmin,
 101                     f->layout->bounds[i].ymin,
 102                     f->layout->bounds[i].xmax,
 103                     f->layout->bounds[i].ymax);
 104         } else {
 105             printf("/* bbox not set */ 0, 0, 0, 0);");
 106         }
 107         printf(" // %c\n", PRINTABLE(f->glyph2ascii[i]));
 108     }
 109
 110   printf("  return f;\n}\n\n");
 111   free(gpos);
 112 }
 113
 114 void DumpGlobal(char * funcname)
 115 { printf("\nvoid %s(SWFFONT * f,int i,U16 ascii,U16 advance,U8 * data,U32 bitlen,int xmin,int ymin,int xmax, int ymax)\n",funcname);
 116   printf("{ SHAPE * s;\n  U32 l = (bitlen+7)/8;\n\n");
 117   printf("  if (FAILED(swf_ShapeNew(&s))) return;\n");
 118   printf("  s->data = malloc(l);\n");
 119   printf("  if (!s->data) { swf_ShapeFree(s); return; }\n\n");
 120   printf("  f->glyph2ascii[i]     = ascii;\n");
 121   printf("  f->ascii2glyph[ascii] = i;\n");
 122   printf("  f->glyph[i].advance   = advance;\n");
 123   printf("  f->glyph[i].shape     = s;\n");
 124   printf("  s->bitlen             = bitlen;\n");
 125   printf("  s->bits.fill          = 1;\n");
 126   printf("  if(f->layout && f->layout->bounds)\n");
 127   printf("  {  f->layout->bounds[i].xmin = xmin;\n");
 128   printf("     f->layout->bounds[i].ymin = ymin;\n");
 129   printf("     f->layout->bounds[i].xmax = xmax;\n");
 130   printf("     f->layout->bounds[i].ymax = ymax;\n");
 131   printf("  }\n");
 132   printf("  memcpy(s->data,data,l);\n}\n\n");
 133 }
 134
 135
 136 void fontcallback(U16 id,U8 * name,void*data)
 137 { SWFFONT * font;
 138
 139   int f;
 140   char s[500],*ss;
 141
 142   swf_FontExtract(&swf,id,&font);
 143   sprintf(s,"%s%s%s",name,swf_FontIsBold(font)?"_bold":"",swf_FontIsItalic(font)?"_italic":"");
 144
 145   ss = s;
 146   while(*ss)
 147   {
 148     if(!((*ss>='a' && *ss<='z') ||
 149          (*ss>='A' && *ss<='Z') ||
 150          (*ss>='0' && *ss<='9' && ss!=s) ||
 151          (*ss=='_')))
 152                 *ss = '_';
 153     ss++;
 154   }
 155
 156   DumpFont(font,s);
 157
 158   swf_FontFree(font);
 159 }
 160
 161 int main(int argc,char ** argv)
 162 { int f;
 163
 164   if (argc>1)
 165   { f = open(argv[1],O_RDONLY);
 166     if (f>=0)
 167     { if FAILED(swf_ReadSWF(f,&swf))
 168       { fprintf(stderr,"%s is not a valid SWF file or contains errors.\n",argv[1]);
 169         close(f);
 170       }
 171       else
 172       { char fn[200];
 173         close(f);
 174         sprintf(fn,"fn%04x",getpid()); // avoid name conflicts @ using multiple fonts
 175         printf("#define addGlyph %s\n",fn);
 176         DumpGlobal(fn);
 177         swf_FontEnumerate(&swf,&fontcallback,0);
 178         swf_FreeTags(&swf);
 179         printf("#undef addGlyph\n");
 180       }
 181     } else fprintf(stderr,"File not found: %s\n",argv[1]);
 182   }
 183   else fprintf(stderr,"\nreflex SWF Font Dump Utility\n(w) 2000 by Rainer Boehme <rb@reflex-studio.de>\n\nUsage: dumpfont filename.swf\n");
 184
 185   return 0;
 186 }
 187