blob: 93eb39e29e4bbf8ea80236b14989e423c0f6ba4e [file] [log] [blame]
#include <u.h>
#include <libc.h>
#include <draw.h>
#include <memdraw.h>
#include <thread.h>
#include <fcall.h>
#include <9p.h>
/*
* we included thread.h in order to include 9p.h,
* but we don't use threads, so exits is ok.
*/
#undef exits
#include "a.h"
Memsubfont *defont;
void
usage(void)
{
fprint(2, "usage: fontsrv [-m mtpt]\n");
fprint(2, "or fontsrv -p path\n");
exits("usage");
}
static
void
packinfo(Fontchar *fc, uchar *p, int n)
{
int j;
for(j=0; j<=n; j++){
p[0] = fc->x;
p[1] = fc->x>>8;
p[2] = fc->top;
p[3] = fc->bottom;
p[4] = fc->left;
p[5] = fc->width;
fc++;
p += 6;
}
}
enum
{
Qroot = 0,
Qfontdir,
Qsizedir,
Qfontfile,
Qsubfontfile,
};
#define QTYPE(p) ((p) & 0xF)
#define QFONT(p) (((p) >> 4) & 0xFFFF)
#define QSIZE(p) (((p) >> 20) & 0xFF)
#define QANTIALIAS(p) (((p) >> 28) & 0x1)
#define QRANGE(p) (((p) >> 29) & 0xFF)
static int sizes[] = { 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 24, 28 };
static vlong
qpath(int type, int font, int size, int antialias, int range)
{
return type | (font << 4) | (size << 20) | (antialias << 28) | ((vlong)range << 29);
}
static void
dostat(vlong path, Qid *qid, Dir *dir)
{
char *name;
Qid q;
ulong mode;
vlong length;
XFont *f;
char buf[100];
q.type = 0;
q.vers = 0;
q.path = path;
mode = 0444;
length = 0;
name = "???";
switch(QTYPE(path)) {
default:
sysfatal("dostat %#llux", path);
case Qroot:
q.type = QTDIR;
name = "/";
break;
case Qfontdir:
q.type = QTDIR;
f = &xfont[QFONT(path)];
name = f->name;
break;
case Qsizedir:
q.type = QTDIR;
snprint(buf, sizeof buf, "%lld%s", QSIZE(path), QANTIALIAS(path) ? "a" : "");
name = buf;
break;
case Qfontfile:
f = &xfont[QFONT(path)];
load(f);
length = 11+1+11+1+f->nrange*(6+1+6+1+9+1);
name = "font";
break;
case Qsubfontfile:
snprint(buf, sizeof buf, "x%02llx00.bit", QRANGE(path));
name = buf;
break;
}
if(qid)
*qid = q;
if(dir) {
memset(dir, 0, sizeof *dir);
dir->name = estrdup9p(name);
dir->muid = estrdup9p("");
dir->uid = estrdup9p("font");
dir->gid = estrdup9p("font");
dir->qid = q;
if(q.type == QTDIR)
mode |= DMDIR | 0111;
dir->mode = mode;
dir->length = length;
}
}
static char*
xwalk1(Fid *fid, char *name, Qid *qid)
{
int i, dotdot;
vlong path;
char *p;
int a, n;
XFont *f;
path = fid->qid.path;
dotdot = strcmp(name, "..") == 0;
switch(QTYPE(path)) {
default:
NotFound:
return "file not found";
case Qroot:
if(dotdot)
break;
for(i=0; i<nxfont; i++) {
if(strcmp(xfont[i].name, name) == 0) {
path = qpath(Qfontdir, i, 0, 0, 0);
goto Found;
}
}
goto NotFound;
case Qfontdir:
if(dotdot) {
path = Qroot;
break;
}
n = strtol(name, &p, 10);
if(n == 0)
goto NotFound;
a = 0;
if(*p == 'a') {
a = 1;
p++;
}
if(*p != 0)
goto NotFound;
path += Qsizedir - Qfontdir + qpath(0, 0, n, a, 0);
break;
case Qsizedir:
if(dotdot) {
path = qpath(Qfontdir, QFONT(path), 0, 0, 0);
break;
}
if(strcmp(name, "font") == 0) {
path += Qfontfile - Qsizedir;
break;
}
f = &xfont[QFONT(path)];
load(f);
p = name;
if(*p != 'x')
goto NotFound;
p++;
n = strtoul(p, &p, 16);
if(p != name+5 || (n&0xFF) != 0 || strcmp(p, ".bit") != 0 || !f->range[(n>>8) & 0xFF])
goto NotFound;
path += Qsubfontfile - Qsizedir + qpath(0, 0, 0, 0, (n>>8) & 0xFF);
break;
}
Found:
dostat(path, qid, nil);
fid->qid = *qid;
return nil;
}
static int
rootgen(int i, Dir *d, void *v)
{
if(i >= nxfont)
return -1;
dostat(qpath(Qfontdir, i, 0, 0, 0), nil, d);
return 0;
}
static int
fontgen(int i, Dir *d, void *v)
{
vlong path;
Fid *f;
f = v;
path = f->qid.path;
if(i >= 2*nelem(sizes))
return -1;
dostat(qpath(Qsizedir, QFONT(path), sizes[i/2], i&1, 0), nil, d);
return 0;
}
static int
sizegen(int i, Dir *d, void *v)
{
vlong path;
Fid *fid;
XFont *f;
int j;
fid = v;
path = fid->qid.path;
if(i == 0) {
path += Qfontfile - Qsizedir;
goto Done;
}
i--;
f = &xfont[QFONT(path)];
load(f);
for(j=0; j<nelem(f->range); j++) {
if(f->range[j] == 0)
continue;
if(i == 0) {
path += Qsubfontfile - Qsizedir;
path += qpath(0, 0, 0, 0, j);
goto Done;
}
i--;
}
return -1;
Done:
dostat(path, nil, d);
return 0;
}
static void
xattach(Req *r)
{
dostat(0, &r->ofcall.qid, nil);
r->fid->qid = r->ofcall.qid;
respond(r, nil);
}
static void
xopen(Req *r)
{
if(r->ifcall.mode != OREAD) {
respond(r, "permission denied");
return;
}
r->ofcall.qid = r->fid->qid;
respond(r, nil);
}
void
responderrstr(Req *r)
{
char err[ERRMAX];
rerrstr(err, sizeof err);
respond(r, err);
}
static void
xread(Req *r)
{
int i, size, height, ascent;
vlong path;
Fmt fmt;
XFont *f;
char *data;
Memsubfont *sf;
Memimage *m;
path = r->fid->qid.path;
switch(QTYPE(path)) {
case Qroot:
dirread9p(r, rootgen, nil);
break;
case Qfontdir:
dirread9p(r, fontgen, r->fid);
break;
case Qsizedir:
dirread9p(r, sizegen, r->fid);
break;
case Qfontfile:
fmtstrinit(&fmt);
f = &xfont[QFONT(path)];
load(f);
if(f->unit == 0)
break;
height = f->height * (int)QSIZE(path)/f->unit + 0.99999999;
ascent = height - (int)(-f->originy * (int)QSIZE(path)/f->unit + 0.99999999);
fmtprint(&fmt, "%11d %11d\n", height, ascent);
for(i=0; i<nelem(f->range); i++) {
if(f->range[i] == 0)
continue;
fmtprint(&fmt, "0x%04x 0x%04x x%04x.bit\n", i<<8, (i<<8) + 0xFF, i<<8);
}
data = fmtstrflush(&fmt);
readstr(r, data);
free(data);
break;
case Qsubfontfile:
f = &xfont[QFONT(path)];
load(f);
if(r->fid->aux == nil) {
r->fid->aux = mksubfont(f->name, QRANGE(path)<<8, (QRANGE(path)<<8)+0xFF, QSIZE(path), QANTIALIAS(path));
if(r->fid->aux == nil) {
responderrstr(r);
return;
}
}
sf = r->fid->aux;
m = sf->bits;
if(r->ifcall.offset < 5*12) {
char *chan;
if(QANTIALIAS(path))
chan = "k8";
else
chan = "k1";
data = smprint("%11s %11d %11d %11d %11d ", chan, m->r.min.x, m->r.min.y, m->r.max.x, m->r.max.y);
readstr(r, data);
free(data);
break;
}
r->ifcall.offset -= 5*12;
size = bytesperline(m->r, chantodepth(m->chan)) * Dy(m->r);
if(r->ifcall.offset < size) {
readbuf(r, byteaddr(m, m->r.min), size);
break;
}
r->ifcall.offset -= size;
data = emalloc9p(3*12+6*(sf->n+1));
sprint(data, "%11d %11d %11d ", sf->n, sf->height, sf->ascent);
packinfo(sf->info, (uchar*)data+3*12, sf->n);
readbuf(r, data, 3*12+6*(sf->n+1));
free(data);
break;
}
respond(r, nil);
}
static void
xdestroyfid(Fid *fid)
{
Memsubfont *sf;
sf = fid->aux;
if(sf == nil)
return;
freememimage(sf->bits);
free(sf->info);
free(sf);
fid->aux = nil;
}
static void
xstat(Req *r)
{
dostat(r->fid->qid.path, nil, &r->d);
respond(r, nil);
}
Srv xsrv;
int
proccreate(void (*f)(void*), void *a, unsigned i)
{
abort();
}
int pflag;
static long dirpackage(uchar*, long, Dir**);
void
dump(char *path)
{
char *elem, *p, *path0, *err;
uchar buf[4096];
Fid fid;
Qid qid;
Dir *d;
Req r;
int off, i, n;
// root
memset(&fid, 0, sizeof fid);
dostat(0, &fid.qid, nil);
qid = fid.qid;
path0 = path;
while(path != nil) {
p = strchr(path, '/');
if(p != nil)
*p = '\0';
elem = path;
if(strcmp(elem, "") != 0 && strcmp(elem, ".") != 0) {
err = xwalk1(&fid, elem, &qid);
if(err != nil) {
fprint(2, "%s: %s\n", path0, err);
exits(err);
}
}
if(p)
*p++ = '/';
path = p;
}
memset(&r, 0, sizeof r);
xsrv.fake = 1;
// read and display
off = 0;
for(;;) {
r.srv = &xsrv;
r.fid = &fid;
r.ifcall.type = Tread;
r.ifcall.count = sizeof buf;
r.ifcall.offset = off;
r.ofcall.data = (char*)buf;
r.ofcall.count = 0;
xread(&r);
if(r.ofcall.type != Rread) {
fprint(2, "reading %s: %s\n", path0, r.ofcall.ename);
exits(r.ofcall.ename);
}
n = r.ofcall.count;
if(n == 0)
break;
if(off == 0 && pflag > 1) {
print("\001");
}
off += n;
if(qid.type & QTDIR) {
n = dirpackage(buf, n, &d);
for(i=0; i<n; i++)
print("%s%s\n", d[i].name, (d[i].mode&DMDIR) ? "/" : "");
free(d);
} else
write(1, buf, n);
}
}
int
fontcmp(const void *va, const void *vb)
{
XFont *a, *b;
a = (XFont*)va;
b = (XFont*)vb;
return strcmp(a->name, b->name);
}
void
main(int argc, char **argv)
{
char *mtpt, *srvname;
mtpt = nil;
srvname = "font";
ARGBEGIN{
case 'D':
chatty9p++;
break;
case 'F':
chattyfuse++;
break;
case 'm':
mtpt = EARGF(usage());
break;
case 's':
srvname = EARGF(usage());
break;
case 'p':
pflag++;
break;
default:
usage();
}ARGEND
xsrv.attach = xattach;
xsrv.open = xopen;
xsrv.read = xread;
xsrv.stat = xstat;
xsrv.walk1 = xwalk1;
xsrv.destroyfid = xdestroyfid;
fmtinstall('R', Rfmt);
fmtinstall('P', Pfmt);
memimageinit();
defont = getmemdefont();
loadfonts();
qsort(xfont, nxfont, sizeof xfont[0], fontcmp);
if(pflag) {
if(argc != 1 || chatty9p || chattyfuse)
usage();
dump(argv[0]);
exits(0);
}
if(pflag || argc != 0)
usage();
/*
* Check twice -- if there is an exited instance
* mounted there, the first access will fail but unmount it.
*/
if(mtpt && access(mtpt, AEXIST) < 0 && access(mtpt, AEXIST) < 0)
sysfatal("mountpoint %s does not exist", mtpt);
xsrv.foreground = 1;
threadpostmountsrv(&xsrv, srvname, mtpt, 0);
}
/*
/sys/src/libc/9sys/dirread.c
*/
static
long
dirpackage(uchar *buf, long ts, Dir **d)
{
char *s;
long ss, i, n, nn, m;
*d = nil;
if(ts <= 0)
return 0;
/*
* first find number of all stats, check they look like stats, & size all associated strings
*/
ss = 0;
n = 0;
for(i = 0; i < ts; i += m){
m = BIT16SZ + GBIT16(&buf[i]);
if(statcheck(&buf[i], m) < 0)
break;
ss += m;
n++;
}
if(i != ts)
return -1;
*d = malloc(n * sizeof(Dir) + ss);
if(*d == nil)
return -1;
/*
* then convert all buffers
*/
s = (char*)*d + n * sizeof(Dir);
nn = 0;
for(i = 0; i < ts; i += m){
m = BIT16SZ + GBIT16((uchar*)&buf[i]);
if(nn >= n || convM2D(&buf[i], m, *d + nn, s) != m){
free(*d);
*d = nil;
return -1;
}
nn++;
s += m;
}
return nn;
}