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#ifndef ARGON2_BLAKE2_IMPL_H
#define ARGON2_BLAKE2_IMPL_H
#include <stdint.h>
/* Argon2 Team - Begin Code */
/*
Not an exhaustive list, but should cover the majority of modern platforms
Additionally, the code will always be correct---this is only a performance
tweak.
*/
#if (defined(__BYTE_ORDER__) && \
(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)) || \
defined(__LITTLE_ENDIAN__) || defined(__ARMEL__) || defined(__MIPSEL__) || \
defined(__AARCH64EL__) || defined(__amd64__) || defined(__i386__) || \
defined(_M_IX86) || defined(_M_X64) || defined(_M_AMD64) || \
defined(_M_ARM)
#define NATIVE_LITTLE_ENDIAN
#endif
/* Argon2 Team - End Code */
static inline uint32_t load32(const void *src) {
#if defined(NATIVE_LITTLE_ENDIAN)
return *(const uint32_t *)src;
#else
const uint8_t *p = (const uint8_t *)src;
uint32_t w = *p++;
w |= (uint32_t)(*p++) << 8;
w |= (uint32_t)(*p++) << 16;
w |= (uint32_t)(*p++) << 24;
return w;
#endif
}
static inline uint64_t load64(const void *src) {
#if defined(NATIVE_LITTLE_ENDIAN)
return *(const uint64_t *)src;
#else
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;
w |= (uint64_t)(*p++) << 48;
w |= (uint64_t)(*p++) << 56;
return w;
#endif
}
static inline void store32(void *dst, uint32_t w) {
#if defined(NATIVE_LITTLE_ENDIAN)
*(uint32_t *)dst = w;
#else
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;
#endif
}
static inline void store64(void *dst, uint64_t w) {
#if defined(NATIVE_LITTLE_ENDIAN)
*(uint64_t *)dst = w;
#else
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;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
#endif
}
#endif // ARGON2_BLAKE2_IMPL_H
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