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1 #include <u.h>2 #include <libc.h>3 #include <draw.h>5 static6 void7 packinfo(Fontchar *fc, uchar *p, int n)8 {9 int j;11 for(j=0; j<=n; j++){12 p[0] = fc->x;13 p[1] = fc->x>>8;14 p[2] = fc->top;15 p[3] = fc->bottom;16 p[4] = fc->left;17 p[5] = fc->width;18 fc++;19 p += 6;20 }21 }23 int24 writesubfont(int fd, Subfont *f)25 {26 char hdr[3*12+1];27 uchar *data;28 int nb;30 sprint(hdr, "%11d %11d %11d ", f->n, f->height, f->ascent);31 if(write(fd, hdr, 3*12) != 3*12){32 Err:33 werrstr("writesubfont: bad write: %r");34 return -1;35 }36 nb = 6*(f->n+1);37 data = malloc(nb);38 if(data == nil)39 return -1;40 packinfo(f->info, data, f->n);41 if(write(fd, data, nb) != nb)42 goto Err;43 free(data);44 return 0;45 }