tsiry-sandratraina.com / rockbox-zig
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita audio rust zig deno mpris rockbox mpd
fork atom
rockbox-zig / apps / plugins / lib / jhash.h
at master 67 lines 2.4 kB view raw
Thomas Martitz Move c/h files implementing/defining standard library stuff into a new libc directory, also standard'ify some parts of the code base (almost entirely #include fixes). This is to a) to cleanup firmware/common and firmware/include a bit, but also b) for Rockbox as an application which should use the host system's c library and headers, separating makes it easy to exclude our files from the build.
50a6ca39
1/*************************************************************************** 2* __________ __ ___. 3* Open \______ \ ____ ____ | | _\_ |__ _______ ___ 4* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / 5* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < 6* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ 7* \/ \/ \/ \/ \/ 8* $Id$ 9* 10* Copyright (C) 2009 by Andrew Mahone 11* 12* jhash.c headers 13* 14* This program is free software; you can redistribute it and/or 15* modify it under the terms of the GNU General Public License 16* as published by the Free Software Foundation; either version 2 17* of the License, or (at your option) any later version. 18* 19* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 20* KIND, either express or implied. 21* 22****************************************************************************/ 23 24#ifndef _LIB_JHASH_H_ 25#define _LIB_JHASH_H_ 26#include <inttypes.h> /* defines uint32_t etc */ 27#include <string.h> /* size_t */ 28#include "plugin.h" 29 30/* 31hashw() -- hash an array of uint32_t into a 32-bit value 32 k: pointer to the key, an array of uint32_t 33 length: number of elements in the key 34 initval: an initialization value 35 returns the 32-bit hash 36*/ 37uint32_t hashw(const uint32_t *k, size_t length, uint32_t initval); 38 39/* 40hashw() -- hash an array of uint32_t into two 32-bit values 41(*pc) will be the same as the return value from hashword(). 42 k: pointer to the key, an array of uint32_t 43 length: number of elements in the key 44 pc, pb: pointers to primary and secondary initial values, also used to store 45 the hash results. 46*/ 47void hashw2 (const uint32_t *k, size_t length, uint32_t *pc, uint32_t *pb); 48 49/* 50hashs() -- hash an array of bytes into a 32-bit value 51 k: pointer to the key, an array of bytes 52 length: number of elements in the key 53 initval: an initialization value 54 returns the 32-bit hash 55*/ 56uint32_t hashs( const void *key, size_t length, uint32_t initval); 57 58/* 59hashs2() -- hash an array of bytes into two 32-bit values 60 k: pointer to the key, an array of bytes 61 length: number of elements in the key 62 pc, pb: pointers to primary and secondary initial values, also used to store 63 the hash results. 64*/ 65void hashs2(const void *key, size_t length, uint32_t *pc, uint32_t *pb); 66#endif 67