#include "UtilityCommon.h" #include "./StreamHashKey.h" namespace util { ; ////////////////////////////////////////////////////////////////////////// // reference Unreal3 GameEngine, Epic Games, co.ltd. // - changes : 처음 사용한 SHA alogrithm hash는 유니크 할 수는 없었다. // 희박한 확률이라도 Hash중복 가능성이 있었고, 또한 기타 여러 // 가지 면에서도 당근 아래와 같은 코드가 더 효율적이다. // - (CHANGES) (f100813.3L) make to a constant table and add extended interfaces //#define _SDL_CRC32_POLYNOMIAL 0x04C11DB7 HashKey StreamHashKey::GetStringHashKey(const char* input_str) { const char* it = input_str; HashKey crc = 0xFFFFFFFF; // for ( ; *it != '\0'; ++it) { char c = *it; HashKey cL = c & 255; crc = (crc << 8) ^ crc_table_static_[ (crc >> 24) ^ cL ]; } return ~crc; } HashKey StreamHashKey::GetStringHashKey(const wchar_t* input_wstr) { const wchar_t* it = input_wstr; const wchar_t* end = it + wcslen(input_wstr); HashKey crc = 0xFFFFFFFF; // for ( ; it != end; ++it) { wchar_t c = *it; HashKey cL = c & 255; crc = (crc << 8) ^ crc_table_static_[ (crc >> 24) ^ cL ]; HashKey cH = (c >> 8) & 255; crc = (crc << 8) ^ crc_table_static_[ (crc >> 24) ^ cH ]; } return ~crc; } HashKey StreamHashKey::GetMemoryHashKey(const void* input_ptr, size_t length) { const uint8_t* it = reinterpret_cast(input_ptr); const uint8_t* end = it + length; HashKey crc = 0xFFFFFFFF; // for ( ; it != end; ++it) { crc = (crc << 8) ^ crc_table_static_[ (crc >> 24) ^ *it ]; } return ~crc; } //HashKey GetMemoryHashKeyEnDecode(const void* input_ptr, size_t length, HashKey endecode); const HashKey StreamHashKey::crc_table_static_[256] = { 0x00000000, //[0x00] 0x04C11DB7, //[0x01] 0x09823B6E, //[0x02] 0x0D4326D9, //[0x03] 0x130476DC, //[0x04] 0x17C56B6B, //[0x05] 0x1A864DB2, //[0x06] 0x1E475005, //[0x07] 0x2608EDB8, //[0x08] 0x22C9F00F, //[0x09] 0x2F8AD6D6, //[0x0A] 0x2B4BCB61, //[0x0B] 0x350C9B64, //[0x0C] 0x31CD86D3, //[0x0D] 0x3C8EA00A, //[0x0E] 0x384FBDBD, //[0x0F] 0x4C11DB70, //[0x10] 0x48D0C6C7, //[0x11] 0x4593E01E, //[0x12] 0x4152FDA9, //[0x13] 0x5F15ADAC, //[0x14] 0x5BD4B01B, //[0x15] 0x569796C2, //[0x16] 0x52568B75, //[0x17] 0x6A1936C8, //[0x18] 0x6ED82B7F, //[0x19] 0x639B0DA6, //[0x1A] 0x675A1011, //[0x1B] 0x791D4014, //[0x1C] 0x7DDC5DA3, //[0x1D] 0x709F7B7A, //[0x1E] 0x745E66CD, //[0x1F] 0x9823B6E0, //[0x20] 0x9CE2AB57, //[0x21] 0x91A18D8E, //[0x22] 0x95609039, //[0x23] 0x8B27C03C, //[0x24] 0x8FE6DD8B, //[0x25] 0x82A5FB52, //[0x26] 0x8664E6E5, //[0x27] 0xBE2B5B58, //[0x28] 0xBAEA46EF, //[0x29] 0xB7A96036, //[0x2A] 0xB3687D81, //[0x2B] 0xAD2F2D84, //[0x2C] 0xA9EE3033, //[0x2D] 0xA4AD16EA, //[0x2E] 0xA06C0B5D, //[0x2F] 0xD4326D90, //[0x30] 0xD0F37027, //[0x31] 0xDDB056FE, //[0x32] 0xD9714B49, //[0x33] 0xC7361B4C, //[0x34] 0xC3F706FB, //[0x35] 0xCEB42022, //[0x36] 0xCA753D95, //[0x37] 0xF23A8028, //[0x38] 0xF6FB9D9F, //[0x39] 0xFBB8BB46, //[0x3A] 0xFF79A6F1, //[0x3B] 0xE13EF6F4, //[0x3C] 0xE5FFEB43, //[0x3D] 0xE8BCCD9A, //[0x3E] 0xEC7DD02D, //[0x3F] 0x34867077, //[0x40] 0x30476DC0, //[0x41] 0x3D044B19, //[0x42] 0x39C556AE, //[0x43] 0x278206AB, //[0x44] 0x23431B1C, //[0x45] 0x2E003DC5, //[0x46] 0x2AC12072, //[0x47] 0x128E9DCF, //[0x48] 0x164F8078, //[0x49] 0x1B0CA6A1, //[0x4A] 0x1FCDBB16, //[0x4B] 0x018AEB13, //[0x4C] 0x054BF6A4, //[0x4D] 0x0808D07D, //[0x4E] 0x0CC9CDCA, //[0x4F] 0x7897AB07, //[0x50] 0x7C56B6B0, //[0x51] 0x71159069, //[0x52] 0x75D48DDE, //[0x53] 0x6B93DDDB, //[0x54] 0x6F52C06C, //[0x55] 0x6211E6B5, //[0x56] 0x66D0FB02, //[0x57] 0x5E9F46BF, //[0x58] 0x5A5E5B08, //[0x59] 0x571D7DD1, //[0x5A] 0x53DC6066, //[0x5B] 0x4D9B3063, //[0x5C] 0x495A2DD4, //[0x5D] 0x44190B0D, //[0x5E] 0x40D816BA, //[0x5F] 0xACA5C697, //[0x60] 0xA864DB20, //[0x61] 0xA527FDF9, //[0x62] 0xA1E6E04E, //[0x63] 0xBFA1B04B, //[0x64] 0xBB60ADFC, //[0x65] 0xB6238B25, //[0x66] 0xB2E29692, //[0x67] 0x8AAD2B2F, //[0x68] 0x8E6C3698, //[0x69] 0x832F1041, //[0x6A] 0x87EE0DF6, //[0x6B] 0x99A95DF3, //[0x6C] 0x9D684044, //[0x6D] 0x902B669D, //[0x6E] 0x94EA7B2A, //[0x6F] 0xE0B41DE7, //[0x70] 0xE4750050, //[0x71] 0xE9362689, //[0x72] 0xEDF73B3E, //[0x73] 0xF3B06B3B, //[0x74] 0xF771768C, //[0x75] 0xFA325055, //[0x76] 0xFEF34DE2, //[0x77] 0xC6BCF05F, //[0x78] 0xC27DEDE8, //[0x79] 0xCF3ECB31, //[0x7A] 0xCBFFD686, //[0x7B] 0xD5B88683, //[0x7C] 0xD1799B34, //[0x7D] 0xDC3ABDED, //[0x7E] 0xD8FBA05A, //[0x7F] 0x690CE0EE, //[0x80] 0x6DCDFD59, //[0x81] 0x608EDB80, //[0x82] 0x644FC637, //[0x83] 0x7A089632, //[0x84] 0x7EC98B85, //[0x85] 0x738AAD5C, //[0x86] 0x774BB0EB, //[0x87] 0x4F040D56, //[0x88] 0x4BC510E1, //[0x89] 0x46863638, //[0x8A] 0x42472B8F, //[0x8B] 0x5C007B8A, //[0x8C] 0x58C1663D, //[0x8D] 0x558240E4, //[0x8E] 0x51435D53, //[0x8F] 0x251D3B9E, //[0x90] 0x21DC2629, //[0x91] 0x2C9F00F0, //[0x92] 0x285E1D47, //[0x93] 0x36194D42, //[0x94] 0x32D850F5, //[0x95] 0x3F9B762C, //[0x96] 0x3B5A6B9B, //[0x97] 0x0315D626, //[0x98] 0x07D4CB91, //[0x99] 0x0A97ED48, //[0x9A] 0x0E56F0FF, //[0x9B] 0x1011A0FA, //[0x9C] 0x14D0BD4D, //[0x9D] 0x19939B94, //[0x9E] 0x1D528623, //[0x9F] 0xF12F560E, //[0xA0] 0xF5EE4BB9, //[0xA1] 0xF8AD6D60, //[0xA2] 0xFC6C70D7, //[0xA3] 0xE22B20D2, //[0xA4] 0xE6EA3D65, //[0xA5] 0xEBA91BBC, //[0xA6] 0xEF68060B, //[0xA7] 0xD727BBB6, //[0xA8] 0xD3E6A601, //[0xA9] 0xDEA580D8, //[0xAA] 0xDA649D6F, //[0xAB] 0xC423CD6A, //[0xAC] 0xC0E2D0DD, //[0xAD] 0xCDA1F604, //[0xAE] 0xC960EBB3, //[0xAF] 0xBD3E8D7E, //[0xB0] 0xB9FF90C9, //[0xB1] 0xB4BCB610, //[0xB2] 0xB07DABA7, //[0xB3] 0xAE3AFBA2, //[0xB4] 0xAAFBE615, //[0xB5] 0xA7B8C0CC, //[0xB6] 0xA379DD7B, //[0xB7] 0x9B3660C6, //[0xB8] 0x9FF77D71, //[0xB9] 0x92B45BA8, //[0xBA] 0x9675461F, //[0xBB] 0x8832161A, //[0xBC] 0x8CF30BAD, //[0xBD] 0x81B02D74, //[0xBE] 0x857130C3, //[0xBF] 0x5D8A9099, //[0xC0] 0x594B8D2E, //[0xC1] 0x5408ABF7, //[0xC2] 0x50C9B640, //[0xC3] 0x4E8EE645, //[0xC4] 0x4A4FFBF2, //[0xC5] 0x470CDD2B, //[0xC6] 0x43CDC09C, //[0xC7] 0x7B827D21, //[0xC8] 0x7F436096, //[0xC9] 0x7200464F, //[0xCA] 0x76C15BF8, //[0xCB] 0x68860BFD, //[0xCC] 0x6C47164A, //[0xCD] 0x61043093, //[0xCE] 0x65C52D24, //[0xCF] 0x119B4BE9, //[0xD0] 0x155A565E, //[0xD1] 0x18197087, //[0xD2] 0x1CD86D30, //[0xD3] 0x029F3D35, //[0xD4] 0x065E2082, //[0xD5] 0x0B1D065B, //[0xD6] 0x0FDC1BEC, //[0xD7] 0x3793A651, //[0xD8] 0x3352BBE6, //[0xD9] 0x3E119D3F, //[0xDA] 0x3AD08088, //[0xDB] 0x2497D08D, //[0xDC] 0x2056CD3A, //[0xDD] 0x2D15EBE3, //[0xDE] 0x29D4F654, //[0xDF] 0xC5A92679, //[0xE0] 0xC1683BCE, //[0xE1] 0xCC2B1D17, //[0xE2] 0xC8EA00A0, //[0xE3] 0xD6AD50A5, //[0xE4] 0xD26C4D12, //[0xE5] 0xDF2F6BCB, //[0xE6] 0xDBEE767C, //[0xE7] 0xE3A1CBC1, //[0xE8] 0xE760D676, //[0xE9] 0xEA23F0AF, //[0xEA] 0xEEE2ED18, //[0xEB] 0xF0A5BD1D, //[0xEC] 0xF464A0AA, //[0xED] 0xF9278673, //[0xEE] 0xFDE69BC4, //[0xEF] 0x89B8FD09, //[0xF0] 0x8D79E0BE, //[0xF1] 0x803AC667, //[0xF2] 0x84FBDBD0, //[0xF3] 0x9ABC8BD5, //[0xF4] 0x9E7D9662, //[0xF5] 0x933EB0BB, //[0xF6] 0x97FFAD0C, //[0xF7] 0xAFB010B1, //[0xF8] 0xAB710D06, //[0xF9] 0xA6322BDF, //[0xFA] 0xA2F33668, //[0xFB] 0xBCB4666D, //[0xFC] 0xB8757BDA, //[0xFD] 0xB5365D03, //[0xFE] 0xB1F740B4, //[0xFF] }; }; //end of namespace