float fz_to_real(fz_context *ctx, fz_obj *obj)
{
obj = fz_resolve_indirect(ctx, obj);
if (fz_is_real(ctx, obj))
return obj->u.f;
if (fz_is_int(ctx, obj))
return obj->u.i;
return 0;
}
int fz_to_int(fz_context *ctx, fz_obj *obj)
{
obj = fz_resolve_indirect(ctx, obj);
if (fz_is_int(ctx, obj))
return obj->u.i;
if (fz_is_real(ctx, obj))
return (int)(obj->u.f + 0.5f); /* No roundf in MSVC */
return 0;
}
static int _pdf_doc_find_page_no(
struct _pdf_doc *self, fz_obj *dest)
{
if (fz_is_dict(dest)) {
/* The destination is linked from a Go-To action's D array. */
fz_obj * D = fz_dict_gets(dest, "D");
if (D && fz_is_array(D))
dest = D;
}
if (fz_is_array(dest))
dest = fz_array_get(dest, 0);
if (fz_is_int(dest))
return fz_to_int(dest);
return pdf_find_page_number(self->xref, dest);
}
/*
* Load CMap stream in PDF file
*/
fz_error
pdf_load_embedded_cmap(pdf_cmap **cmapp, pdf_xref *xref, fz_obj *stmobj)
{
fz_error error = fz_okay;
fz_stream *file = NULL;
pdf_cmap *cmap = NULL;
pdf_cmap *usecmap;
fz_obj *wmode;
fz_obj *obj;
if ((*cmapp = pdf_find_item(xref->store, pdf_drop_cmap, stmobj)))
{
pdf_keep_cmap(*cmapp);
return fz_okay;
}
error = pdf_open_stream(&file, xref, fz_to_num(stmobj), fz_to_gen(stmobj));
if (error)
{
error = fz_rethrow(error, "cannot open cmap stream (%d %d R)", fz_to_num(stmobj), fz_to_gen(stmobj));
goto cleanup;
}
error = pdf_parse_cmap(&cmap, file);
if (error)
{
error = fz_rethrow(error, "cannot parse cmap stream (%d %d R)", fz_to_num(stmobj), fz_to_gen(stmobj));
goto cleanup;
}
fz_close(file);
wmode = fz_dict_gets(stmobj, "WMode");
if (fz_is_int(wmode))
pdf_set_wmode(cmap, fz_to_int(wmode));
obj = fz_dict_gets(stmobj, "UseCMap");
if (fz_is_name(obj))
{
error = pdf_load_system_cmap(&usecmap, fz_to_name(obj));
if (error)
{
error = fz_rethrow(error, "cannot load system usecmap '%s'", fz_to_name(obj));
goto cleanup;
}
pdf_set_usecmap(cmap, usecmap);
pdf_drop_cmap(usecmap);
}
else if (fz_is_indirect(obj))
{
error = pdf_load_embedded_cmap(&usecmap, xref, obj);
if (error)
{
error = fz_rethrow(error, "cannot load embedded usecmap (%d %d R)", fz_to_num(obj), fz_to_gen(obj));
goto cleanup;
}
pdf_set_usecmap(cmap, usecmap);
pdf_drop_cmap(usecmap);
}
pdf_store_item(xref->store, pdf_keep_cmap, pdf_drop_cmap, stmobj, cmap);
*cmapp = cmap;
return fz_okay;
cleanup:
if (file)
fz_close(file);
if (cmap)
pdf_drop_cmap(cmap);
return error; /* already rethrown */
}