Subfont*
getdefont(Display *d)
{
char *hdr, *p;
int n;
Fontchar *fc;
Subfont *f;
int ld;
Rectangle r;
Image *i;
/*
* make sure data is word-aligned. this is true with Plan 9 compilers
* but not in general. the byte order is right because the data is
* declared as char*, not ulong*.
*/
p = (char*)defontdata;
n = (ulong)p & 3;
if(n != 0){
memmove(p+(4-n), p, sizeofdefont-n);
p += 4-n;
}
ld = atoi(p+0*12);
r.min.x = atoi(p+1*12);
r.min.y = atoi(p+2*12);
r.max.x = atoi(p+3*12);
r.max.y = atoi(p+4*12);
i = allocimage(d, r, drawld2chan[ld], 0, 0);
if(i == 0)
return 0;
p += 5*12;
n = loadimage(i, r, (uchar*)p, (defontdata+sizeofdefont)-(uchar*)p);
if(n < 0){
freeimage(i);
return 0;
}
hdr = p+n;
n = atoi(hdr);
p = hdr+3*12;
fc = malloc(sizeof(Fontchar)*(n+1));
if(fc == 0){
freeimage(i);
return 0;
}
_unpackinfo(fc, (uchar*)p, n);
f = allocsubfont("*default*", n, atoi(hdr+12), atoi(hdr+24), fc, i);
if(f == 0){
freeimage(i);
free(fc);
return 0;
}
return f;
}
Memsubfont*
openmemsubfont(char *name)
{
Memsubfont *sf;
Memimage *i;
Fontchar *fc;
int fd, n;
char hdr[3*12+4+1];
uchar *p;
fd = open(name, OREAD);
if(fd < 0)
return nil;
p = nil;
i = readmemimage(fd);
if(i == nil)
goto Err;
if(readn(fd, hdr, 3*12) != 3*12){
werrstr("openmemsubfont: header read error: %r");
goto Err;
}
n = atoi(hdr);
if(n <= 0 || n > 0x7fff){
werrstr("openmemsubfont: bad fontchar count %d", n);
goto Err;
}
p = malloc(6*(n+1));
if(p == nil)
goto Err;
if(readn(fd, p, 6*(n+1)) != 6*(n+1)){
werrstr("openmemsubfont: fontchar read error: %r");
goto Err;
}
fc = malloc(sizeof(Fontchar)*(n+1));
if(fc == nil)
goto Err;
_unpackinfo(fc, p, n);
sf = allocmemsubfont(name, n, atoi(hdr+12), atoi(hdr+24), fc, i);
if(sf == nil){
free(fc);
goto Err;
}
close(fd);
free(p);
return sf;
Err:
close(fd);
free(p);
freememimage(i);
return nil;
}
Memsubfont*
getmemdefont(void)
{
char *hdr, *p;
int n;
Fontchar *fc;
Memsubfont *f;
int ld;
Rectangle r;
Memdata *md;
Memimage *i;
/*
* make sure data is word-aligned. this is true with Plan 9 compilers
* but not in general. the byte order is right because the data is
* declared as char*, not u32int*.
*/
p = (char*)defontdata;
n = (uintptr)p & 3;
if(n != 0){
memmove(p+(4-n), p, sizeofdefont-n);
p += 4-n;
}
ld = atoi(p+0*12);
r.min.x = atoi(p+1*12);
r.min.y = atoi(p+2*12);
r.max.x = atoi(p+3*12);
r.max.y = atoi(p+4*12);
md = mallocz(sizeof(Memdata), 1);
if(md == nil)
return nil;
p += 5*12;
md->base = nil; /* so freememimage doesn't free p */
md->bdata = (uchar*)p; /* ick */
md->ref = 1;
md->allocd = 1; /* so freememimage does free md */
i = allocmemimaged(r, drawld2chan[ld], md, nil);
if(i == nil){
free(md);
return nil;
}
hdr = p+Dy(r)*i->width*sizeof(u32int);
n = atoi(hdr);
p = hdr+3*12;
fc = malloc(sizeof(Fontchar)*(n+1));
if(fc == 0){
freememimage(i);
return 0;
}
_unpackinfo(fc, (uchar*)p, n);
f = allocmemsubfont("*default*", n, atoi(hdr+12), atoi(hdr+24), fc, i);
if(f == 0){
freememimage(i);
free(fc);
return 0;
}
return f;
}
