/*
Copyright (c) 2018 tevador

This file is part of RandomX.

RandomX is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

RandomX is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
*/

/* Original code from Argon2 reference source code package used under CC0 Licence
 * https://github.com/P-H-C/phc-winner-argon2
 * Copyright 2015
 * Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*/

#ifndef PORTABLE_BLAKE2_IMPL_H
#define PORTABLE_BLAKE2_IMPL_H

#include <stdint.h>

#include "endian.h"

static FORCE_INLINE uint64_t load48(const void *src) {
	const uint8_t *p = (const uint8_t *)src;
	uint64_t w = *p++;
	w |= (uint64_t)(*p++) << 8;
	w |= (uint64_t)(*p++) << 16;
	w |= (uint64_t)(*p++) << 24;
	w |= (uint64_t)(*p++) << 32;
	w |= (uint64_t)(*p++) << 40;
	return w;
}

static FORCE_INLINE void store48(void *dst, uint64_t w) {
	uint8_t *p = (uint8_t *)dst;
	*p++ = (uint8_t)w;
	w >>= 8;
	*p++ = (uint8_t)w;
	w >>= 8;
	*p++ = (uint8_t)w;
	w >>= 8;
	*p++ = (uint8_t)w;
	w >>= 8;
	*p++ = (uint8_t)w;
	w >>= 8;
	*p++ = (uint8_t)w;
}

static FORCE_INLINE uint32_t rotr32(const uint32_t w, const unsigned c) {
	return (w >> c) | (w << (32 - c));
}

static FORCE_INLINE uint64_t rotr64(const uint64_t w, const unsigned c) {
	return (w >> c) | (w << (64 - c));
}

#endif