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Rev 10 Rev 8103
Line 14... Line 14...
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 *  along with this program; if not, write to the Free Software
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 */
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 */
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 17 
 
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/* dvi 2 gif driver, gf font loader and processor */
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/* dvi 2 gif driver, gf font loader and processor */
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#include "texgif.h"
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#define gf_paint_0      0
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#define gf_paint1       64
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#define gf_paint2       65
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#define gf_paint3       66
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#define gf_boc          67
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#define gf_boc1         68
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#define gf_eoc          69
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#define gf_skip0        70
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#define gf_skip1        71
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#define gf_skip2        72
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#define gf_skip3        73
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#define gf_new_row_0    74
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#define gf_xxx1         239
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#define gf_xxx2         240
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#define gf_xxx3         241
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#define gf_xxx4         242
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#define gf_yyy          243
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#define gf_no_op        244
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#define gf_char_loc     245
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#define gf_char_loc0    246
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#define gf_pre          247
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#define gf_post         248
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#define gf_post_post    249
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int g;
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int g;
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FONTHEADER *fh;
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FONTHEADER *fh;
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int brush, x,y,xmax,ymax,thischar,xsize,charsize,charcnt,charpos;
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int brush, x,y,xmax,ymax,thischar,xsize,charsize,charcnt,charpos;
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int chswitch;
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int chswitch;
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    x+=p; if(x>xmax) x=xmax;
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    x+=p; if(x>xmax) x=xmax;
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    brush^=1;
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    brush^=1;
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}
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}
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void GF_new_row(int p)
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void GF_new_row(int p)
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{
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{
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    y++; if(y>ymax) y=ymax;
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    y++; if(y>ymax) y=ymax;
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    x=p; if(x>xmax) x=xmax;
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    x=p; if(x>xmax) x=xmax;
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    brush=1;
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    brush=1;
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}
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}
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void GF_skip(int p)
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void GF_skip(int p)
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{
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{
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    if(p>0) p=texint(gfbuf+(++g),p);
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    if(p>0) p=texint(gfbuf+(++g),p);
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    p++; y+=p; if(y>ymax) y=ymax;
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    p++; y+=p; if(y>ymax) y=ymax;
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    x=0; brush=0;
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    x=0; brush=0;
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}
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}
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void GF_xxx(int p)
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void GF_xxx(int p)
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{
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{
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    unsigned int t;
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    unsigned int t;
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    t=texint(gfbuf+(++g),p);
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    t=texint(gfbuf+(++g),p);
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    g+=p+t-1;
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    g+=p+t-1;
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}
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}
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void GF_yyy(void)
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void GF_yyy(void)
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{
 131 
{
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    g+=4;
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    g+=4;
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}
 133 
}
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void GF_char_loc(int p)
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void GF_char_loc(int p)
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{
 136 
{
112 
    if(p==0) g+=1+1+4+4;
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    if(p==0) g+=1+1+4+4;
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    else g+=1+4+4+4+4;
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    else g+=1+4+4+4+4;
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}
 139 
}
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void GF_post(void)
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void GF_post(void)
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{
 142 
{
118 
    chswitch=0;
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    chswitch=0;
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}
 144 
}
120 
 
 145 
 
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void GF_post_post(void)
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void GF_post_post(void)
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{
 147 
{
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    g=gfbuflen; chswitch=0;
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    g=gfbuflen; chswitch=0;
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}
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}
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#include "gfcmd.c"
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void loadgf(char *fname, int density)
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void loadgf(char *fname, int density)
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{
 152 
{
130 
    int len;
 153 
    int len;
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    char namebuf[128];
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    char namebuf[128];
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 155 
 
133 
    snprintf(namebuf,sizeof(namebuf),"%s/texgf.%dgf",tmpdir,density);
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    snprintf(namebuf,sizeof(namebuf),"%s/texgf.%dgf",tmpdir,density);
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    len=getfile(namebuf,&gfbuf);
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    len=getfile(namebuf,&gfbuf);
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    if(len<=0) {
 158 
    if(len<=0) {
136 
        error("Metafont failed.");
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        error("Metafont failed.");
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    }
 160 
    }
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void gf2font(char *fontname,int density)
 185 
void gf2font(char *fontname,int density)
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{
 186 
{
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    unsigned char cc;
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    unsigned char cc;
165 
    char namebuf[1024];
 188 
    char namebuf[1024];
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    char tmpname[1024];
 189 
    char tmpname[1024];
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 190 
 
168 
    if((gfbuf[0]&255)!=gf_pre || (gfbuf[1]&255)!=131) return;
 191 
    if((gfbuf[0]&255)!=gf_pre || (gfbuf[1]&255)!=131) return;
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    g=3+(gfbuf[2]&255);
 192 
    g=3+(gfbuf[2]&255);
170 
    if(gfbuflen<=g) return;
 193 
    if(gfbuflen<=g) return;
171 
    if(tfm.ec==0 && tfm.bc==0) return;
 194 
    if(tfm.ec==0 && tfm.bc==0) return;
172 
    charcnt=tfm.ec-tfm.bc+1;
 195 
    charcnt=tfm.ec-tfm.bc+1;
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192 
            case gf_xxx1:       GF_xxx(1); break;
 215 
            case gf_xxx1:       GF_xxx(1); break;
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            case gf_xxx2:       GF_xxx(2); break;
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            case gf_xxx2:       GF_xxx(2); break;
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            case gf_xxx3:       GF_xxx(3); break;
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            case gf_xxx3:       GF_xxx(3); break;
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            case gf_xxx4:       GF_xxx(4); break;
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            case gf_xxx4:       GF_xxx(4); break;
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            case gf_yyy:        GF_yyy(); break;
 219 
            case gf_yyy:        GF_yyy(); break;
197 
           
 220 
 
198 
            default: break;
 221 
            default: break;
199 
        }
 222 
        }
200 
    }
 223 
    }
201 
    fclose(fontf);
 224 
    fclose(fontf);
202 
    snprintf(namebuf,sizeof(namebuf),"%s/%s.font",
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    snprintf(namebuf,sizeof(namebuf),"%s/%s.font",