Lines Matching refs:signature
144 /* Read any remaining signature bytes from the stream and compare them with
145 * the correct PNG signature. It is possible that this routine is called
146 * with bytes already read from the signature, either because they have been
161 png_push_fill_buffer(png_ptr, &(info_ptr->signature[num_checked]),
165 if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check))
168 png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
