mupen64plus-oldsvn/main/romcache.c

957 lines
32 KiB
C

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Mupen64plus - romchache.c *
* Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ *
* Copyright (C) 2008 Tillin9 *
* *
* 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 program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <zlib.h>
#include "winlnxdefs.h"
#include "romcache.h"
#include "config.h"
#include "rom.h"
#include "main.h"
#include "translate.h"
#include "../opengl/osd.h"
#define DEFAULT 16
/* Rom database necessary even in GUI=NONE due to Eeprom issue for ROM loading.
* Possible SoftHack or other necessary compatibility settings as well.
*/
void romdatabase_open(void);
void romdatabase_close(void);
_romdatabase g_romdatabase;
romdatabase_entry empty_entry;
/* All RCS thread and caching functions aren't needed if compiling GUI=NONE */
#ifndef NO_GUI
#include <iconv.h>
#include <errno.h>
#include <limits.h> /* PATH_MAX */
#include <dirent.h> /* Directory support. */
#include <sys/stat.h> /* Includes for POSIX file status.*/
#include <sys/types.h>
#include "7zip/Types.h"
#include "7zip/7zCrc.h"
#include "../memory/memory.h" /* sl() macro for CRCs. */
#include "md5.h"
#include "gui.h"
#include "util.h"
#include <SDL.h>
#include <SDL_thread.h>
#define UPDATE_FREQUENCY 12
#define RCS_VERSION "RCS1.1"
rom_cache g_romcache;
static char cache_filename[PATH_MAX];
static const char* romextensions[] =
{
".v64", ".z64", ".n64", ".gz", ".zip", ".bz2", ".lzma", ".7z", NULL
};
static void scan_dir(const char* dirname, int* romcounter);
int load_initial_cache(void);
static void clear_cache(void)
{
cache_entry *entry, *entrynext;
if(g_romcache.length!=0)
{
entry = g_romcache.top;
do
{
entrynext = entry->next;
free(entry);
entry = entrynext;
--g_romcache.length;
}
while (entry!=NULL);
g_romcache.last = NULL;
}
}
static int write_cache_file(void)
{
gzFile* gzfile;
if((gzfile = gzopen(cache_filename, "wb"))==NULL)
{
printf("Could not create cache file %s\n", cache_filename);
return 0;
}
int i = 0;
gzwrite(gzfile, &i, sizeof(int));
gzwrite(gzfile, RCS_VERSION, 6*sizeof(char));
gzwrite(gzfile, &g_romcache.length, sizeof(unsigned int));
if(g_romcache.length!=0)
{
cache_entry* entry;
entry = g_romcache.top;
do
{
gzwrite(gzfile, entry->md5, 16*sizeof(md5_byte_t));
gzwrite(gzfile, &entry->timestamp, sizeof(time_t));
gzwrite(gzfile, entry->filename, PATH_MAX*sizeof(char));
gzwrite(gzfile, entry->usercomments, COMMENT_MAXLENGTH*sizeof(char));
gzwrite(gzfile, &entry->internalname, 80*sizeof(char));
gzwrite(gzfile, &entry->compressiontype, sizeof(unsigned char));
gzwrite(gzfile, &entry->imagetype, sizeof(unsigned char));
gzwrite(gzfile, &entry->cic, sizeof(unsigned char));
gzwrite(gzfile, &entry->countrycode, sizeof(unsigned short));
gzwrite(gzfile, &entry->archivefile, sizeof(unsigned int));
gzwrite(gzfile, &entry->crc1, sizeof(unsigned int));
gzwrite(gzfile, &entry->crc2, sizeof(unsigned int));
gzwrite(gzfile, &entry->romsize, sizeof(int));
entry = entry->next;
}
while (entry!=NULL);
}
gzclose(gzfile);
return 1;
}
static void rebuild_cache_file(void)
{
char path[PATH_MAX], buffer[PATH_MAX];
char* file;
unsigned char match;
int counter, oldlength;
struct stat filestatus;
/* Scrub cache, if user removed rom directories remove roms. */
cache_entry *entry, *entryprevious, *entrynext;
if(g_romcache.length!=0)
{
oldlength = g_romcache.length;
entryprevious = entry = g_romcache.top;
while (entry != NULL)
{
for(match = counter = 0; counter < config_get_number("NumRomDirs", 0); ++counter)
{
snprintf(buffer, sizeof(buffer), "RomDirectory[%d]", counter);
snprintf(path, sizeof(path), "%s", config_get_string(buffer, "/"));
if(config_get_bool("RomDirsScanRecursive", FALSE))
{
if(strncmp(entry->filename, path, strlen(path))==0)
{
match = 1;
break;
}
}
else
{
file = dirfrompath(entry->filename);
if(strlen(file)==strlen(path)&&strncmp(file, path, strlen(path))==0)
{
free(file);
match = 1;
break;
}
free(file);
}
}
/* Check rom is valid. */
if(!match||stat(entry->filename, &filestatus)==-1)
{
if(entry==g_romcache.top)
g_romcache.top = entry->next;
if(entryprevious)
entryprevious->next = entry->next;
entrynext = entry->next;
entry = NULL;
free(entry);
--g_romcache.length;
}
else
{
entrynext = entry->next;
entryprevious = entry;
}
entry = entrynext;
};
if(g_romcache.length!=oldlength)
g_romcache.clear = 1;
g_romcache.last = entryprevious;
}
int romcounter = 0;
/* Re-scan directories. */
for(counter = 0; counter < config_get_number("NumRomDirs", 0); ++counter)
{
snprintf(buffer, sizeof(buffer), "RomDirectory[%d]", counter);
snprintf(path, sizeof(path), "%s", config_get_string(buffer, ""));
if(path[strlen(path)-1]!='/')
{
strncat(path, "/", sizeof(path));
path[sizeof(path)-1] = '\0';
}
printf("Scanning... %s\n", path);
scan_dir(path, &romcounter);
}
write_cache_file();
}
/* Entry point for the RCS thread. Sets up local variables and enters task loop.
* After initially loading and rescanning, thread sleeps unless asked to refresh
* cache (generally by user action in the GUI).
*/
int rom_cache_system(void* _arg)
{
char* buffer;
g_romcache.rcspause = 0;
g_romcache.clear = 0;
/* Setup job parser. */
while (g_romcache.rcstask != RCS_SHUTDOWN)
{
/* Uncomment to debug RCS task. */
/* printf("Task: %d\n", g_romcache.rcstask); */
switch(g_romcache.rcstask)
{
case RCS_INIT:
g_romcache.rcstask = RCS_BUSY;
buffer = (char*)config_get_string("RomCacheFile", NULL);
if(buffer==NULL)
{
buffer = (char*)malloc(PATH_MAX*sizeof(char));
snprintf(buffer, PATH_MAX, "%s%s", get_configpath(), "rombrowser.cache");
config_put_string("RomCacheFile", buffer);
}
snprintf(cache_filename, sizeof(cache_filename), "%s", buffer);
if(load_initial_cache())
gui_update_rombrowser(g_romcache.length, g_romcache.clear);
remove(cache_filename);
main_message(1, 1, 0, OSD_BOTTOM_LEFT, tr("Rescanning rom cache."));
rebuild_cache_file();
gui_update_rombrowser(g_romcache.length, g_romcache.clear);
main_message(1, 1, 0, OSD_BOTTOM_LEFT, tr("Rom cache up to date. %d ROM%s."), g_romcache.length, (g_romcache.length==1) ? "" : "s");
if(g_romcache.rcstask==RCS_BUSY)
g_romcache.rcstask = RCS_SLEEP;
break;
case RCS_WRITE_CACHE:
g_romcache.rcstask = RCS_BUSY;
remove(cache_filename);
write_cache_file();
if(g_romcache.rcstask==RCS_BUSY)
g_romcache.rcstask = RCS_SLEEP;
break;
case RCS_RESCAN:
g_romcache.rcstask = RCS_BUSY;
main_message(1, 1, 0, OSD_BOTTOM_LEFT, tr("Rescanning rom cache."));
rebuild_cache_file();
gui_update_rombrowser(g_romcache.length, g_romcache.clear);
main_message(1, 1, 0, OSD_BOTTOM_LEFT, tr("Rom cache up to date. %d ROM%s."), g_romcache.length, (g_romcache.length==1) ? "" : "s");
g_romcache.clear = 0;
if(g_romcache.rcstask==RCS_BUSY)
g_romcache.rcstask = RCS_SLEEP;
break;
case RCS_SLEEP:
SDL_Delay(100); /* Sleep to not use any CPU power. */
break;
}
}
printf("Rom cache system terminated!\n");
clear_cache();
SDL_WaitThread(g_RomCacheThread, NULL);
return 1;
}
/* Given a pointer to the memory space of a valid ROM, and its size in entry->romsize
* fill md5, inientry, countrycode, crc1, crc2, internalname, and cic properties of entry.
*/
void fill_entry(cache_entry* entry, unsigned char* localrom)
{
/* Compute md5. */
md5_state_t state;
md5_init(&state);
md5_append(&state, (const md5_byte_t *)localrom, entry->romsize);
md5_finish(&state, entry->md5);
entry->inientry = ini_search_by_md5(entry->md5);
/* See rom.h for header layout. */
entry->countrycode = (unsigned short)*(localrom+0x3E);
entry->crc1 = sl(*(unsigned int*)(localrom+0x10));
entry->crc2 = sl(*(unsigned int*)(localrom+0x14));
/* Internal name is encoded in SHIFT-JIS. Attempt to convert to UTF-8 so that
GUIs and (ideally) Rice can use this for Japanese titles in a moderm environment. */
iconv_t conversion = iconv_open ("UTF-8", "SHIFT-JIS");
if(conversion==(iconv_t)-1)
snprintf(entry->internalname, 20, "%s", (char*)localrom+0x20);
else
{
char *shiftjis, *shiftjisstart, *utf8, *utf8start;
size_t shiftjislength = 20;
size_t utf8length = 80;
shiftjisstart = shiftjis = (char*)calloc(20,sizeof(char));
utf8start = utf8 = (char*)calloc(81,sizeof(char));
snprintf(shiftjis, 20, "%s", (char*)localrom+0x20);
iconv(conversion, &shiftjis, &shiftjislength, &utf8, &utf8length);
iconv_close(conversion);
snprintf(entry->internalname, sizeof(entry->internalname), "%s", utf8start);
free(shiftjisstart);
free(utf8start);
}
/* Detect CIC copy protection boot chip by CRCing the boot code. */
long long CRC = 0;
int counter;
for(counter = 0x40/4; counter < 0x1000/4; ++counter)
CRC += ((unsigned int*)localrom)[counter];
switch(CRC)
{
case 0x000000A0F26F62FELL:
entry->cic = CIC_NUS_6101;
break;
case 0x000000A316ADC55ALL:
entry->cic = CIC_NUS_6102;
break;
case 0x000000A9229D7C45LL:
entry->cic = CIC_NUS_6103;
break;
case 0x000000F8B860ED00LL:
entry->cic = CIC_NUS_6105;
break;
case 0x000000BA5BA4B8CDLL:
entry->cic = CIC_NUS_6106;
break;
default:
entry->cic = CIC_NUS_6102;
}
}
static void scan_dir(const char* directoryname, int* romcounter)
{
char filename[PATH_MAX];
char fullpath[PATH_MAX];
char* extension;
DIR* directory;
struct dirent* directoryentry;
struct stat filestatus;
cache_entry* entry;
int found;
directory = opendir(directoryname);
if(!directory)
{
printf("Could not open directory '%s': %s\n", directoryname, strerror(errno));
return;
}
int counter;
while ((directoryentry = readdir(directory)))
{
if(directoryentry->d_name[0]=='.') /* Skip .,.., or hidden files. */
continue;
snprintf(filename, PATH_MAX-1, "%s%s", directoryname, directoryentry->d_name);
#ifdef __WIN32__
snprintf(fullpath, PATH_MAX-1, "%s", filename);
#else
/* Use real path (maybe it's a link) */
if(realpath(filename, fullpath))
snprintf(fullpath, PATH_MAX-1, "%s", filename);
#endif
/* If we can't get information, move to next file. */
if(stat(fullpath, &filestatus)==-1)
{
printf("Could not open file '%s': %s\n", fullpath, strerror(errno));
continue;
}
/* Handle recursive scanning. */
if(config_get_bool("RomDirsScanRecursive", 0))
{
if(S_ISDIR(filestatus.st_mode))
{
strncat(filename, "/", sizeof(filename));
filename[sizeof(filename)-1] = '\0';
scan_dir(filename, romcounter);
continue;
}
}
/* Check if file has a supported extension. */
extension = strrchr(filename, '.');
if(!extension)
continue;
for(counter = 0; romextensions[counter]; ++counter)
{
if(!strcasecmp(extension,romextensions[counter]))
break;
}
if(!romextensions[counter])
continue;
found = 0; /* Found controls whether its found in the cache. */
if(g_romcache.length!=0)
{
entry = g_romcache.top;
do
{
if(strncmp(entry->filename, filename, PATH_MAX)==0)
{
found = 1;
break;
}
entry = entry->next;
}
while (entry != NULL);
}
entry = (cache_entry*)calloc(1,sizeof(cache_entry));
if(entry==NULL)
{
fprintf(stderr, "%s, %d: Out of memory!\n", __FILE__, __LINE__);
continue;
}
if(found==0)
{
snprintf(entry->filename, PATH_MAX, "%s", filename);
unsigned char* localrom;
/* Uncomment to debug file handling. */
/* printf("File: %s\n", filename); */
UInt32 blockIndex = 0xFFFFFFFF;
Byte* outBuffer = NULL;
size_t outBufferSize = 0;
CFileInStream archiveStream;
archiveStream.File=NULL;
archiveStream.InStream.Read = SzFileReadImp;
archiveStream.InStream.Seek = SzFileSeekImp;
CArchiveDatabaseEx db;
SzArDbExInit(&db);
CrcGenerateTable();
unsigned int archivefile = 0;
/* Testload to see if we're a valid rom. Functions in rom.c. */
if((localrom=load_single_rom(filename, &entry->romsize, &entry->compressiontype, &entry->romsize))==NULL)
{
if((localrom=load_archive_rom(filename, &entry->romsize, &entry->compressiontype, &entry->romsize, &archivefile, &blockIndex, &outBuffer, &outBufferSize, &archiveStream, &db))==NULL)
{
free(entry);
continue;
}
}
/* Multi-rom archive? */
int multi;
do
{
multi = 0;
swap_rom(localrom, &entry->imagetype, entry->romsize);
fill_entry(entry, localrom);
free(localrom);
entry->timestamp = filestatus.st_mtime;
entry->archivefile = archivefile;
++archivefile;
/* Actually add rom to cache. */
if(g_romcache.length==0)
{
g_romcache.top = entry;
g_romcache.last = entry;
++g_romcache.length;
}
else
{
g_romcache.last->next = entry;
g_romcache.last = entry;
++g_romcache.length;
}
printf("Added ROM: %s\n", entry->inientry->goodname);
++*romcounter;
if(*romcounter%UPDATE_FREQUENCY==0)
{
gui_update_rombrowser(g_romcache.length, g_romcache.clear);
main_message(1, 1, 0, OSD_BOTTOM_LEFT, tr("Added ROMs %d-%d."), g_romcache.length-UPDATE_FREQUENCY+1, g_romcache.length);
write_cache_file();
}
if(entry->compressiontype==ZIP_COMPRESSION||entry->compressiontype==SZIP_COMPRESSION)
{
entry = (cache_entry*)calloc(1, sizeof(cache_entry));
snprintf(entry->filename, PATH_MAX, "%s", filename);
if((localrom=load_archive_rom(filename, &entry->romsize, &entry->compressiontype, &entry->romsize, &archivefile, &blockIndex, &outBuffer, &outBufferSize, &archiveStream, &db))!=NULL)
{
multi = 1;
if(entry==NULL)
{
fprintf(stderr, "%s, %d: Out of memory!\n", __FILE__, __LINE__);
continue;
}
}
}
}
while (multi);
if(outBuffer)
free(outBuffer);
if(archiveStream.File)
fclose(archiveStream.File);
SzArDbExFree(&db, free);
}
/* Pause if user open a ROM and starts emulation. Toggled in rom.c. */
while (g_romcache.rcspause)
SDL_Delay(100);
}
closedir(directory);
}
int load_initial_cache(void)
{
int counter;
char header[6];
cache_entry *entry;
struct stat filestatus;
gzFile* gzfile;
if((gzfile = gzopen(cache_filename,"rb"))==NULL)
{
printf("Could not open cachefile %s\n", cache_filename);
return 0;
}
gzread(gzfile, &header, sizeof(int));
if(!gzread(gzfile, &header, 6*sizeof(char))||strncmp(header, RCS_VERSION,6)!=0)
{
printf("Rom cache corrupt or from previous version.\n");
return 0;
}
gzread(gzfile, &g_romcache.length, sizeof(unsigned int));
for(counter = 0; counter < g_romcache.length; ++counter)
{
entry = (cache_entry*)calloc(1, sizeof(cache_entry));
if(!entry)
{
fprintf(stderr, "%s, %d: Out of memory!\n", __FILE__, __LINE__);
return 0;
}
gzread(gzfile, entry->md5, 16*sizeof(md5_byte_t));
gzread(gzfile, &entry->timestamp, sizeof(time_t));
gzread(gzfile, entry->filename, PATH_MAX*sizeof(char));
gzread(gzfile, entry->usercomments, COMMENT_MAXLENGTH*sizeof(char));
gzread(gzfile, entry->internalname, 80*sizeof(char));
gzread(gzfile, &entry->compressiontype, sizeof(unsigned char));
gzread(gzfile, &entry->imagetype, sizeof(unsigned char));
gzread(gzfile, &entry->cic, sizeof(unsigned char));
gzread(gzfile, &entry->countrycode, sizeof(unsigned short));
gzread(gzfile, &entry->archivefile, sizeof(unsigned int));
gzread(gzfile, &entry->crc1, sizeof(unsigned int));
gzread(gzfile, &entry->crc2, sizeof(unsigned int));
gzread(gzfile, &entry->romsize, sizeof(int));
/* Check rom is valid. */
if(stat(entry->filename, &filestatus)==-1)
{
free(entry); /* If we can't get into make sure to */
--counter; /* Update counters before continuing. */
--g_romcache.length;
continue;
}
entry->next = NULL;
if(entry->timestamp==filestatus.st_mtime)
{
/* Actually add rom to cache. */
entry->inientry = ini_search_by_md5(entry->md5);
if(counter==0)
{
g_romcache.top = entry;
g_romcache.last = entry;
}
else
{
g_romcache.last->next = entry;
g_romcache.last = entry;
}
/* Uncomment to debug which roms are loaded from cache. */
/* printf("Added from cache: %d %s\n", counter, entry->inientry->goodname); */
}
}
gzclose(gzfile);
return 1;
}
#endif
/* Convert two letters representing hexidecimal to the appropriate value: 00->0 - FF->255. */
unsigned char hexconvert(const char* bigraph)
{
unsigned char returnvalue = 0;
char character;
int digits;
for(digits = 2; digits > 0; --digits)
{
returnvalue = returnvalue << 4;
character = *bigraph++ | 0x20;
if(character>='0'&&character<='9')
returnvalue += character - '0';
else if(character>='a'&&character<='f')
returnvalue += character - 'a' + 10;
}
return returnvalue;
}
/* Helper function, identify the space of a line before an = sign. */
static int split_property(char* string)
{
int counter = 0;
while (string[counter] != '=' && string[counter] != '\0')
++counter;
if(string[counter]=='\0')
return -1;
string[counter] = '\0';
return counter;
}
void romdatabase_open(void)
{
gzFile gzfile;
char buffer[256];
romdatabase_search* search = NULL;
romdatabase_entry* entry = NULL;
int stringlength, totallength, namelength, index, counter, value;
char hashtemp[3];
hashtemp[2] = '\0';
if(g_romdatabase.comment!=NULL)
return;
/* Setup empty_entry. */
empty_entry.goodname = "";
for(counter=0; counter<16; ++counter)
empty_entry.md5[counter]=0;
empty_entry.refmd5 = NULL;
empty_entry.crc1 = 0;
empty_entry.crc2 = 0;
empty_entry.status = 0;
empty_entry.savetype = DEFAULT;
empty_entry.players = DEFAULT;
empty_entry.rumble = DEFAULT;
/* Open romdatabase. */
char* pathname = (char*)malloc(PATH_MAX*sizeof(char));
snprintf(pathname, PATH_MAX, "%s%s", get_installpath(), "mupen64plus.ini");
/* printf("Database file: %s \n", pathname); */
gzfile = gzopen(pathname, "rb");
if(gzfile==NULL)
{
printf("Unable to open rom database.\n");
free(pathname);
return;
}
free(pathname);
/* Move through opening comments, set romdatabase.comment to non-NULL
to signal we have a database. */
totallength = 0;
do
{
gzgets(gzfile, buffer, 255);
if(buffer[0]!='[')
{
stringlength=strlen(buffer);
totallength+=stringlength;
if(g_romdatabase.comment==NULL)
{
g_romdatabase.comment = (char*)malloc(stringlength+2);
snprintf(g_romdatabase.comment, stringlength, "%s", buffer);
}
else
{
g_romdatabase.comment = (char*)realloc(g_romdatabase.comment, totallength+2);
snprintf(g_romdatabase.comment, totallength+1, "%s%s", g_romdatabase.comment, buffer);
}
}
}
while (buffer[0] != '[' && !gzeof(gzfile));
/* Clear premade indices. */
for(counter = 0; counter < 255; ++counter)
g_romdatabase.crc_lists[counter] = NULL;
for(counter = 0; counter < 255; ++counter)
g_romdatabase.md5_lists[counter] = NULL;
g_romdatabase.list = NULL;
do
{
if(buffer[0]=='[')
{
if(g_romdatabase.list==NULL)
{
g_romdatabase.list = (romdatabase_search*)malloc(sizeof(romdatabase_search));
g_romdatabase.list->next_entry = NULL;
g_romdatabase.list->next_crc = NULL;
g_romdatabase.list->next_md5 = NULL;
search = g_romdatabase.list;
}
else
{
search->next_entry = (romdatabase_search*)malloc(sizeof(romdatabase_search));
search = search->next_entry;
search->next_entry = NULL;
search->next_crc = NULL;
search->next_md5 = NULL;
}
for (counter=0; counter < 16; ++counter)
{
hashtemp[0] = buffer[counter*2+1];
hashtemp[1] = buffer[counter*2+2];
search->entry.md5[counter] = hexconvert(hashtemp);
}
/* Index MD5s by first 8 bits. */
index = search->entry.md5[0];
if(g_romdatabase.md5_lists[index]==NULL)
g_romdatabase.md5_lists[index] = search;
else
{
romdatabase_search* aux = g_romdatabase.md5_lists[index];
search->next_md5 = aux;
g_romdatabase.md5_lists[index] = search;
}
search->entry.goodname = NULL;
search->entry.refmd5 = NULL;
search->entry.crc1 = 0;
search->entry.crc2 = 0;
search->entry.status = 0; /* Set default to 0 stars. */
search->entry.savetype = DEFAULT;
search->entry.rumble = DEFAULT;
search->entry.players = DEFAULT;
}
else
{
stringlength = split_property(buffer);
if(stringlength!=-1)
{
if(!strcmp(buffer, "GoodName"))
{
/* Get length of GoodName since we dynamically allocate. */
namelength = strlen(buffer+stringlength+1);
search->entry.goodname = (char*)malloc(namelength*sizeof(char));
/* Make sure we're null terminated. */
if(buffer[stringlength+namelength]=='\n'||buffer[stringlength+namelength]=='\r')
buffer[stringlength+namelength] = '\0';
snprintf(search->entry.goodname, namelength, "%s", buffer+stringlength+1);
/* printf("Name: %s, Length: %d\n", search->entry.goodname, namelength-1); */
}
else if(!strcmp(buffer, "CRC"))
{
buffer[stringlength+19] = '\0';
sscanf(buffer+stringlength+10, "%X", &search->entry.crc2);
buffer[stringlength+9] = '\0';
sscanf(buffer+stringlength+1, "%X", &search->entry.crc1);
buffer[stringlength+3] = '\0';
index = hexconvert(buffer+stringlength+1);
/* Index CRCs by first 8 bits. */
if(g_romdatabase.crc_lists[index]==NULL)
g_romdatabase.crc_lists[index] = search;
else
{
romdatabase_search* aux = g_romdatabase.crc_lists[index];
search->next_crc = aux;
g_romdatabase.crc_lists[index] = search;
}
}
else if(!strcmp(buffer, "RefMD5"))
{
/* If we have a refernce MD5, dynamically allocate. */
search->entry.refmd5 = (md5_byte_t*)malloc(16*sizeof(md5_byte_t));
for (counter=0; counter < 16; ++counter)
{
hashtemp[0] = buffer[stringlength+1+counter*2];
hashtemp[1] = buffer[stringlength+2+counter*2];
search->entry.refmd5[counter] = hexconvert(hashtemp);
}
/* Lookup reference MD5 and replace non-default entries. */
if((entry = ini_search_by_md5(search->entry.refmd5))!=&empty_entry)
{
/* printf("RefMD5: %s\n", aux->goodname); */
if(entry->savetype!=DEFAULT)
search->entry.savetype = entry->savetype;
if(entry->status!=0)
search->entry.status = entry->status;
if(entry->players!=DEFAULT)
search->entry.players = entry->players;
if(entry->rumble!=DEFAULT)
search->entry.rumble = entry->rumble;
}
}
else if(!strcmp(buffer, "SaveType"))
{
if(!strncmp(buffer+stringlength+1, "Eeprom 4KB", 10))
search->entry.savetype = EEPROM_4KB;
else if(!strncmp(buffer+stringlength+1, "Eeprom 16KB", 10))
search->entry.savetype = EEPROM_16KB;
else if(!strncmp(buffer+stringlength+1, "SRAM", 4))
search->entry.savetype = SRAM;
else if(!strncmp(buffer+stringlength+1, "Flash RAM", 9))
search->entry.savetype = FLASH_RAM;
else if(!strncmp(buffer+stringlength+1, "Controller Pack", 15))
search->entry.savetype = CONTROLLER_PACK;
else if(!strncmp(buffer+stringlength+1, "None", 4))
search->entry.savetype = NONE;
}
else if(!strcmp(buffer, "Status"))
{
value = (unsigned char)atoi(buffer+stringlength+1);
if(value>-1&&value<6)
search->entry.status = value;
}
else if(!strcmp(buffer, "Players"))
{
value = (unsigned char)atoi(buffer+stringlength+1);
if(value>-1&&value<8)
search->entry.players = value;
}
else if(!strcmp(buffer, "Rumble"))
{
if(!strncmp(buffer+stringlength+1, "Yes", 3))
search->entry.rumble = 1;
if(!strncmp(buffer+stringlength+1, "No", 2))
search->entry.rumble = 0;
}
}
}
gzgets(gzfile, buffer, 255);
}
while (!gzeof(gzfile));
gzclose(gzfile);
}
void romdatabase_close(void)
{
if (g_romdatabase.comment == NULL)
return;
free(g_romdatabase.comment);
while (g_romdatabase.list != NULL)
{
romdatabase_search* search = g_romdatabase.list->next_entry;
if(g_romdatabase.list->entry.goodname)
free(g_romdatabase.list->entry.goodname);
if(g_romdatabase.list->entry.refmd5)
free(g_romdatabase.list->entry.refmd5);
free(g_romdatabase.list);
g_romdatabase.list = search;
}
}
romdatabase_entry* ini_search_by_md5(md5_byte_t* md5)
{
if(g_romdatabase.comment==NULL)
return &empty_entry;
romdatabase_search* search;
search = g_romdatabase.md5_lists[md5[0]];
while (search != NULL && memcmp(search->entry.md5, md5, 16) != 0)
search = search->next_md5;
if(search==NULL)
return &empty_entry;
else
return &(search->entry);
}
romdatabase_entry* ini_search_by_crc(unsigned int crc1, unsigned int crc2)
{
if(g_romdatabase.comment==NULL)
return &empty_entry;
romdatabase_search* search;
search = g_romdatabase.crc_lists[((crc1 >> 24) & 0xff)];
while (search != NULL && search->entry.crc1 != crc1 && search->entry.crc2 != crc2)
search = search->next_crc;
if(search == NULL)
return &empty_entry;
else
return &(search->entry);
}