static void renumberobjs(void)
{
pdf_xrefentry *oldxref;
int newlen;
int num;
/* Apply renumber map to indirect references in all objects in xref */
renumberobj(xref->trailer);
for (num = 0; num < xref->len; num++)
{
fz_obj *obj = xref->table[num].obj;
if (fz_isindirect(obj))
{
obj = fz_newindirect(renumbermap[fz_tonum(obj)], 0, xref);
pdf_updateobject(xref, num, 0, obj);
fz_dropobj(obj);
}
else
{
renumberobj(obj);
}
}
/* Create new table for the reordered, compacted xref */
oldxref = xref->table;
xref->table = fz_calloc(xref->len, sizeof(pdf_xrefentry));
xref->table[0] = oldxref[0];
/* Move used objects into the new compacted xref */
newlen = 0;
for (num = 1; num < xref->len; num++)
{
if (uselist[num])
{
if (newlen < renumbermap[num])
newlen = renumbermap[num];
xref->table[renumbermap[num]] = oldxref[num];
}
else
{
if (oldxref[num].obj)
fz_dropobj(oldxref[num].obj);
}
}
fz_free(oldxref);
/* Update the used objects count in compacted xref */
xref->len = newlen + 1;
/* Update list of used objects to fit with compacted xref */
for (num = 1; num < xref->len; num++)
uselist[num] = 1;
}
static void renumberobj(fz_obj *obj)
{
int i;
fz_context *ctx = xref->ctx;
if (fz_is_dict(obj))
{
int n = fz_dict_len(obj);
for (i = 0; i < n; i++)
{
fz_obj *key = fz_dict_get_key(obj, i);
fz_obj *val = fz_dict_get_val(obj, i);
if (fz_is_indirect(val))
{
val = fz_new_indirect(ctx, renumbermap[fz_to_num(val)], 0, xref);
fz_dict_put(obj, key, val);
fz_drop_obj(val);
}
else
{
renumberobj(val);
}
}
}
else if (fz_is_array(obj))
{
int n = fz_array_len(obj);
for (i = 0; i < n; i++)
{
fz_obj *val = fz_array_get(obj, i);
if (fz_is_indirect(val))
{
val = fz_new_indirect(ctx, renumbermap[fz_to_num(val)], 0, xref);
fz_array_put(obj, i, val);
fz_drop_obj(val);
}
else
{
renumberobj(val);
}
}
}
}
static void renumberobj(fz_obj *obj)
{
int i;
if (fz_isdict(obj))
{
for (i = 0; i < fz_dictlen(obj); i++)
{
fz_obj *key = fz_dictgetkey(obj, i);
fz_obj *val = fz_dictgetval(obj, i);
if (fz_isindirect(val))
{
val = fz_newindirect(renumbermap[fz_tonum(val)], 0, xref);
fz_dictput(obj, key, val);
fz_dropobj(val);
}
else
{
renumberobj(val);
}
}
}
else if (fz_isarray(obj))
{
for (i = 0; i < fz_arraylen(obj); i++)
{
fz_obj *val = fz_arrayget(obj, i);
if (fz_isindirect(val))
{
val = fz_newindirect(renumbermap[fz_tonum(val)], 0, xref);
fz_arrayput(obj, i, val);
fz_dropobj(val);
}
else
{
renumberobj(val);
}
}
}
}
