/*
 * Argon2 reference source code package - reference C implementations
 *
 * Copyright 2015
 * Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
 *
 * You may use this work under the terms of a Creative Commons CC0 1.0 
 * License/Waiver or the Apache Public License 2.0, at your option. The terms of
 * these licenses can be found at:
 *
 * - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
 * - Apache 2.0        : http://www.apache.org/licenses/LICENSE-2.0
 *
 * You should have received a copy of both of these licenses along with this
 * software. If not, they may be obtained at the above URLs.
 */

#ifndef ARGON2_OPT_H
#define ARGON2_OPT_H

#include "core.h"
#include <emmintrin.h>

/*
 * Function fills a new memory block and optionally XORs the old block over the new one.
 * Memory must be initialized.
 * @param state Pointer to the just produced block. Content will be updated(!)
 * @param ref_block Pointer to the reference block
 * @param next_block Pointer to the block to be XORed over. May coincide with @ref_block
 * @param with_xor Whether to XOR into the new block (1) or just overwrite (0)
 * @pre all block pointers must be valid
 */
static void fill_block(__m128i *s, const block *ref_block, block *next_block, int with_xor);

#endif /* ARGON2_OPT_H */