fz_error *
pdf_storeitem(pdf_store *store, pdf_itemkind kind, fz_obj *key, void *val)
{
fz_error *error;
switch (kind)
{
case PDF_KCOLORSPACE: fz_keepcolorspace(val); break;
case PDF_KFUNCTION: pdf_keepfunction(val); break;
case PDF_KXOBJECT: pdf_keepxobject(val); break;
case PDF_KIMAGE: fz_keepimage(val); break;
case PDF_KPATTERN: pdf_keeppattern(val); break;
case PDF_KSHADE: fz_keepshade(val); break;
case PDF_KCMAP: pdf_keepcmap(val); break;
case PDF_KFONT: fz_keepfont(val); break;
}
if (fz_isindirect(key))
{
struct refkey item;
pdf_logrsrc("store item %d: %d %d R = %p\n", kind, fz_tonum(key), fz_togen(key), val);
item.kind = kind;
item.oid = fz_tonum(key);
item.gen = fz_togen(key);
error = fz_hashinsert(store->hash, &item, val);
if (error)
return error;
}
else
{
pdf_item *item;
item = fz_malloc(sizeof(pdf_item));
if (!item)
return fz_outofmem;
pdf_logrsrc("store item %d: ... = %p\n", kind, val);
item->kind = kind;
item->key = fz_keepobj(key);
item->val = val;
item->next = store->root;
store->root = item;
}
return nil;
}
static void keepitem(pdf_itemkind kind, void *val)
{
switch (kind)
{
case PDF_KCOLORSPACE: fz_keepcolorspace(val); break;
case PDF_KFUNCTION: pdf_keepfunction(val); break;
case PDF_KXOBJECT: pdf_keepxobject(val); break;
case PDF_KIMAGE: fz_keepimage(val); break;
case PDF_KPATTERN: pdf_keeppattern(val); break;
case PDF_KSHADE: fz_keepshade(val); break;
case PDF_KCMAP: pdf_keepcmap(val); break;
case PDF_KFONT: pdf_keepfont(val); break;
}
}
/*
* Load CMap stream in PDF file
*/
fz_error
pdf_loadembeddedcmap(pdf_cmap **cmapp, pdf_xref *xref, fz_obj *stmref)
{
fz_error error = fz_okay;
fz_obj *stmobj;
fz_stream *file = nil;
pdf_cmap *cmap = nil;
pdf_cmap *usecmap;
fz_obj *wmode;
fz_obj *obj;
if ((*cmapp = pdf_finditem(xref->store, PDF_KCMAP, stmref)))
{
pdf_keepcmap(*cmapp);
return fz_okay;
}
pdf_logfont("load embedded cmap (%d %d R) {\n", fz_tonum(stmref), fz_togen(stmref));
stmobj = fz_resolveindirect(stmref);
error = pdf_openstream(&file, xref, fz_tonum(stmref), fz_togen(stmref));
if (error)
{
error = fz_rethrow(error, "cannot open cmap stream");
goto cleanup;
}
error = pdf_parsecmap(&cmap, file);
if (error)
{
error = fz_rethrow(error, "cannot parse cmap stream");
goto cleanup;
}
fz_dropstream(file);
wmode = fz_dictgets(stmobj, "WMode");
if (fz_isint(wmode))
{
pdf_logfont("wmode %d\n", wmode);
pdf_setwmode(cmap, fz_toint(wmode));
}
obj = fz_dictgets(stmobj, "UseCMap");
if (fz_isname(obj))
{
pdf_logfont("usecmap /%s\n", fz_toname(obj));
error = pdf_loadsystemcmap(&usecmap, fz_toname(obj));
if (error)
{
error = fz_rethrow(error, "cannot load system usecmap '%s'", fz_toname(obj));
goto cleanup;
}
pdf_setusecmap(cmap, usecmap);
pdf_dropcmap(usecmap);
}
else if (fz_isindirect(obj))
{
pdf_logfont("usecmap (%d %d R)\n", fz_tonum(obj), fz_togen(obj));
error = pdf_loadembeddedcmap(&usecmap, xref, obj);
if (error)
{
error = fz_rethrow(error, "cannot load embedded usecmap");
goto cleanup;
}
pdf_setusecmap(cmap, usecmap);
pdf_dropcmap(usecmap);
}
pdf_logfont("}\n");
error = pdf_storeitem(xref->store, PDF_KCMAP, stmref, cmap);
if (error)
{
error = fz_rethrow(error, "cannot store cmap resource");
goto cleanup;
}
*cmapp = cmap;
return fz_okay;
cleanup:
if (file)
fz_dropstream(file);
if (cmap)
pdf_dropcmap(cmap);
return error; /* already rethrown */
}
