// vim:fileencoding=utf-8:foldmethod=marker

/**
 * An implementation of the x64 128-bit variant of the MurmurHash3 algorithm
 * based on https://github.com/aappleby/smhasher/blob/master/src/MurmurHash3.cpp
 */

#ifndef MURMUR3_H
#define MURMUR3_H

#include "hasher.h"
#include "../../stream/stream.h"
#include "../../../common/aliases/aliases.h"
#include "../../../common/platform/platform.h"

#ifdef WP_PLATFORM_CPP
BEGIN_C_LINKAGE
#endif // !WP_PLATFORM_CPP

#define WP_MUR3_HASHER_MAGIC wpU64Const(0x57504d4841534833)

typedef struct {
	u64 magic;
	u32 seed;
} WpMur3HasherData;

#ifdef WP_PLATFORM_CPP
#define wpMur3HasherData(SEED) (WpMur3HasherData{WP_MUR3_HASHER_MAGIC, SEED})
#else
#define wpMur3HasherData(SEED) ((WpMur3HasherData){ .magic = WP_MUR3_HASHER_MAGIC, .seed = SEED })
#endif

WpU128Hash wpX64Mur3Hasher128(WpU8Stream *bytes, void *hasher_io);

#ifdef WP_PLATFORM_CPP
END_C_LINKAGE
#endif // !WP_PLATFORM_CPP

#endif // !MURMUR3_H