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| Rev | Author | Line No. | Line |
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| 10 | reyssat | 1 | /* Copyright (C) 2002-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis |
| 2 | * |
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| 3 | * This program is free software; you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation; either version 2 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 16 | */ |
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| 17 | |||
| 18 | /* tex 2 gif translator, font loader */ |
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| 8103 | bpr | 19 | #include "texgif.h" |
| 10 | reyssat | 20 | |
| 21 | void mf2font(char *fontname, int density) |
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| 22 | { |
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| 23 | loadtfm(fontname); |
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| 24 | makegf(fontname,density); |
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| 25 | loadgf(fontname,density); |
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| 26 | gf2font(fontname,density); |
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| 27 | } |
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| 28 | |||
| 29 | FONT *loadfont(char *fname, int checksum, int density, FONT *ft) |
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| 30 | { |
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| 31 | char namebuf[2048]; |
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| 32 | char *fcache, *cc; |
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| 33 | long int l,l2; |
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| 34 | FILE *f; |
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| 35 | int newfont; |
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| 8103 | bpr | 36 | |
| 10 | reyssat | 37 | newfont=0; |
| 8103 | bpr | 38 | for(cc=fname; isalnum(*cc); cc++); |
| 10 | reyssat | 39 | if(*cc!=0) error("Bad font name."); |
| 40 | snprintf(namebuf,sizeof(namebuf),"%s/%d/%s.font",fontdir,density,fname); |
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| 41 | f=fopen(namebuf,"r"); if(f==NULL) { |
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| 42 | renewfont: mf2font(fname,density); |
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| 43 | f=fopen(namebuf,"r"); newfont=1; |
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| 44 | } |
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| 45 | if(f==NULL) return NULL; |
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| 46 | fseek(f,0,SEEK_END); l=ftell(f); fseek(f,0,SEEK_SET); |
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| 47 | if(l<=0 || l>FILE_LENGTH_LIMIT) return NULL; |
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| 48 | fcache=xmalloc(l+16); |
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| 49 | l2=fread(fcache,1,l,f); if(l2!=l) { |
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| 50 | error("Error reading font file."); |
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| 51 | } |
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| 52 | memmove(&ft->checksum,fcache,sizeof(int)); |
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| 53 | memmove(&ft->designsize,fcache+sizeof(int),sizeof(int)); |
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| 54 | memmove(&ft->bc,fcache+2*sizeof(int),sizeof(int)); |
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| 55 | memmove(&ft->ec,fcache+3*sizeof(int),sizeof(int)); |
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| 56 | ft->cnt=ft->ec-ft->bc+1; |
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| 57 | cc=fcache+4*sizeof(int); ft->fh=(FONTHEADER *) cc; |
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| 58 | ft->data=fcache+4*sizeof(int)+ft->cnt*sizeof(FONTHEADER); |
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| 59 | ft->cache=fcache; |
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| 60 | fclose(f); |
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| 61 | if(checksum!=ft->checksum && checksum!=0 && ft->checksum!=0) { |
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| 62 | if(newfont) { |
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| 63 | fprintf(stderr,"%08X != %08X\n",checksum, ft->checksum); |
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| 64 | error("Font checksum discord."); |
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| 65 | } |
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| 66 | free(fcache); unlink(namebuf); goto renewfont; |
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| 67 | } |
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| 68 | return ft; |
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| 69 | } |
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| 70 |