//+------------------------------------------------------------------+
//|                                                          Def.mqh |
//|                                  Copyright 2026, Niquel Mendoza. |
//|                                            https://www.mql5.com/ |
//+------------------------------------------------------------------+
#property copyright "Copyright 2026, Niquel Mendoza."
#property link      "https://www.mql5.com/"
#property strict


#ifndef TSNTABES_SRC_PHASH_XXHASH_DEF_MQH
#define TSNTABES_SRC_PHASH_XXHASH_DEF_MQH

namespace TSN 
{
//+------------------------------------------------------------------+
//| Defines                                                          |
//+------------------------------------------------------------------+
#define XXH_PRIME64_1  0x9E3779B185EBCA87
/*!< 0b1001111000110111011110011011000110000101111010111100101010000111 */
#define XXH_PRIME64_2  0xC2B2AE3D27D4EB4F
/*!< 0b1100001010110010101011100011110100100111110101001110101101001111 */
#define XXH_PRIME64_3  0x165667B19E3779F9
/*!< 0b0001011001010110011001111011000110011110001101110111100111111001 */
#define XXH_PRIME64_4  0x85EBCA77C2B2AE63
/*!< 0b1000010111101011110010100111011111000010101100101010111001100011 */
#define XXH_PRIME64_5  0x27D4EB2F165667C5
/*!< 0b0010011111010100111010110010111100010110010101100110011111000101 */

//---
#define XXH_GET_64(v,i) (ulong(v[i]) | ulong(v[i+1]) << 8 | ulong(v[i+2]) << 16 | ulong(v[i+3]) << 24 | ulong(v[i+4]) << 32 | ulong(v[i+5]) << 40| ulong(v[i+6]) << 48| ulong(v[i+7]) << 56)
#define XXH_GET_32(v,i) (ulong(v[i]) | ulong(v[i+1]) << 8 | ulong(v[i+2]) << 16 | ulong(v[i+3]) << 24)

//---
#define XXH_rotl32(x,r) (((x) << (r)) | ((x) >> (32 - (r))))
#define XXH_rotl64(x,r) (((x) << (r)) | ((x) >> (64 - (r))))
#define XXH64_round(acc, in, val_name) \
    acc += in * XXH_PRIME64_2; \
    acc  = XXH_rotl64(acc, 31); \
    acc *= XXH_PRIME64_1; \
    const ulong val_name = acc; \


#define XXH64_round_i(acc, in, val_name) \
    acc += in * XXH_PRIME64_2; \
    acc = XXH_rotl64(acc, 31); \
    acc *= XXH_PRIME64_1; \
    val_name = acc; \

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
__forceinline ulong XXH64_MergeRound(ulong acc, ulong val)
 {
  ulong k = 0;
  XXH64_round_i(k, val, val)
  acc ^= val;
  acc = acc * XXH_PRIME64_1 + XXH_PRIME64_4;
  return acc;
 }
}    
#endif // TSNTABES_SRC_PHASH_XXHASH_DEF_MQH