/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2020 by William Wilgus * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #ifndef OPEN_PLUGIN_H #define OPEN_PLUGIN_H /* Open_plugin module * OP stores and retrieves plugin path and parameters by key * from a dictionary file * * plugins can load other plugins * return rb->plugin_open(path, parameter); */ #ifndef __PCTOOL__ /* open_plugin path lookup */ #define OPEN_PLUGIN_DAT PLUGIN_DIR "/plugin.dat" #define OPEN_PLUGIN_BUFSZ MAX_PATH #define OPEN_PLUGIN_NAMESZ 32 struct open_plugin_entry_t { uint32_t hash; int32_t lang_id; char name[OPEN_PLUGIN_NAMESZ+1]; /*char key[OPEN_PLUGIN_BUFSZ+1];*/ char path[OPEN_PLUGIN_BUFSZ+1]; char param[OPEN_PLUGIN_BUFSZ+1]; }; inline static void open_plugin_get_hash(const char *key, uint32_t *hash) { /* Calculate modified FNV1a hash of string */ const uint32_t p = 16777619; *hash = 0x811C9DC5; //seed, 2166136261; while(*key) *hash = (*key++ ^ *hash) * p; } #ifndef PLUGIN extern struct open_plugin_entry_t open_plugin_entry; uint32_t open_plugin_add_path(const char *key, const char *plugin, const char *parameter); int open_plugin_get_entry(const char *key, struct open_plugin_entry_t *entry); void open_plugin_browse(const char *key); int open_plugin_run(const char *key); void open_plugin_cache_flush(void); /* flush to disk */ #endif #endif /*ndef __PCTOOL__ */ #endif /* OPEN_PLUGIN_H */