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126 lines
4.9 KiB
C
126 lines
4.9 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Mupen64plus - romcache.h *
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* Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ *
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* Copyright (C) 2008 Tillin9 *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef __ROMCACHE_H__
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#define __ROMCACHE_H__
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#include <limits.h>
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#include "md5.h"
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#define COMMENT_MAXLENGTH 256
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/* The romdatabase contains the items mupen64plus indexes for each rom. These
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* include the goodname (from the GoodN64 project), the current status of the rom
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* in mupen, the N64 savetype used in the original cartridge (often necessary for
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* booting the rom in mupen), the number of players (including netplay options),
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* and whether the rom can make use of the N64's rumble feature. Md5, crc1, and
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* crc2 used for rom lookup. Md5s are unique hashes of the ENTIRE rom. Crcs are not
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* unique and read from the rom header, meaning corrupt crcs are also a problem.
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* Crcs were widely used (mainly in the cheat system). Refmd5s allows for a smaller
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* database file and need not be used outside database loading.
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*/
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typedef struct
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{
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char* goodname;
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md5_byte_t md5[16];
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md5_byte_t* refmd5;
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unsigned int crc1;
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unsigned int crc2;
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unsigned char status; /* Rom status on a scale from 0-5. */
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unsigned char savetype;
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unsigned char players; /* Local players 0-4, 2/3/4 way Netplay indicated by 5/6/7. */
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unsigned char rumble; /* 0 - No, 1 - Yes boolean for rumble support. */
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} romdatabase_entry;
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typedef struct _romdatabase_search
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{
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romdatabase_entry entry;
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struct _romdatabase_search* next_entry;
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struct _romdatabase_search* next_crc;
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struct _romdatabase_search* next_md5;
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} romdatabase_search;
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typedef struct
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{
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char* comment;
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romdatabase_search* crc_lists[256];
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romdatabase_search* md5_lists[256];
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romdatabase_search* list;
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} _romdatabase;
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extern romdatabase_entry empty_entry;
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void romdatabase_open(void);
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void romdatabase_close(void);
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romdatabase_entry* ini_search_by_md5(md5_byte_t* md5);
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/* Should be used by current cheat system (isn't), when cheat system is
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* migrated to md5s, will be fully depreciated.
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*/
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romdatabase_entry* ini_search_by_crc(unsigned int crc1, unsigned int crc2);
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#ifndef NO_GUI
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/* See http://code.google.com/p/mupen64plus/wiki/RomBrowserColumns for details. */
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typedef struct _cache_entry
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{
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md5_byte_t md5[16];
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time_t timestamp;
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char filename[PATH_MAX];
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char usercomments[COMMENT_MAXLENGTH];
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char internalname[81]; /* Needs to be 4 times +1 (for '\0') for UTF8 conversion. */
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unsigned char compressiontype; /* Enum for compression type. */
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unsigned char imagetype; /* Enum for original rom image type. */
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unsigned char cic; /* N64 boot chip, determined from rom. */
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unsigned short countrycode; /* Found in rom header. */
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unsigned int archivefile; /* 0 indexed file number in multirom archive. */
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unsigned int crc1;
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unsigned int crc2;
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int romsize;
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romdatabase_entry* inientry; /* Persistent pointer to romdatabase. */
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struct _cache_entry* next;
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} cache_entry;
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enum
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{
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RCS_INIT = 1,
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RCS_RESCAN,
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RCS_SLEEP,
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RCS_BUSY,
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RCS_SHUTDOWN,
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RCS_WRITE_CACHE /* For quickly saving user comments from GUI frontend. */
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};
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typedef struct
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{
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unsigned int length;
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unsigned char rcstask; /* Enum for what rcs thread should do. */
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unsigned char rcspause; /* Bool for pausing after last file, toggled by start/stopping emulation. */
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unsigned char clear; /* Bool for clearing on an update. */
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cache_entry* top;
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cache_entry* last;
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} rom_cache;
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extern rom_cache g_romcache;
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int rom_cache_system(void* _arg);
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#endif /* NO_GUI */
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#endif /* __ROMCACHE_H__ */
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