m64p_error open_rom(const unsigned char* romimage, unsigned int size)
{
md5_state_t state;
md5_byte_t digest[16];
romdatabase_entry* entry;
char buffer[256];
unsigned char imagetype;
int i;
/* check input requirements */
if (g_rom != NULL)
{
DebugMessage(M64MSG_ERROR, "open_rom(): previous ROM image was not freed");
return M64ERR_INTERNAL;
}
if (romimage == NULL || !is_valid_rom(romimage))
{
DebugMessage(M64MSG_ERROR, "open_rom(): not a valid ROM image");
return M64ERR_INPUT_INVALID;
}
/* Clear Byte-swapped flag, since ROM is now deleted. */
g_MemHasBeenBSwapped = 0;
/* allocate new buffer for ROM and copy into this buffer */
g_rom_size = size;
g_rom = (unsigned char *) malloc(size);
if (g_rom == NULL)
return M64ERR_NO_MEMORY;
swap_copy_rom(g_rom, romimage, size, &imagetype);
memcpy(&ROM_HEADER, g_rom, sizeof(m64p_rom_header));
/* Calculate MD5 hash */
md5_init(&state);
md5_append(&state, (const md5_byte_t*)g_rom, g_rom_size);
md5_finish(&state, digest);
for ( i = 0; i < 16; ++i )
sprintf(buffer+i*2, "%02X", digest[i]);
buffer[32] = '\0';
strcpy(ROM_SETTINGS.MD5, buffer);
/* add some useful properties to ROM_PARAMS */
ROM_PARAMS.systemtype = rom_country_code_to_system_type(ROM_HEADER.Country_code);
ROM_PARAMS.countperop = COUNT_PER_OP_DEFAULT;
ROM_PARAMS.vitiming = ALTERNATE_VI_TIMING_DEFAULT;
ROM_PARAMS.countperscanline = DEFAULT_COUNT_PER_SCANLINE;
ROM_PARAMS.cheats = NULL;
memcpy(ROM_PARAMS.headername, ROM_HEADER.Name, 20);
ROM_PARAMS.headername[20] = '\0';
trim(ROM_PARAMS.headername); /* Remove trailing whitespace from ROM name. */
/* Look up this ROM in the .ini file and fill in goodname, etc */
if ((entry=ini_search_by_md5(digest)) != NULL ||
(entry=ini_search_by_crc(sl(ROM_HEADER.CRC1),sl(ROM_HEADER.CRC2))) != NULL)
{
strncpy(ROM_SETTINGS.goodname, entry->goodname, 255);
ROM_SETTINGS.goodname[255] = '\0';
ROM_SETTINGS.savetype = entry->savetype;
ROM_SETTINGS.status = entry->status;
ROM_SETTINGS.players = entry->players;
ROM_SETTINGS.rumble = entry->rumble;
ROM_PARAMS.countperop = entry->countperop;
ROM_PARAMS.vitiming = entry->alternate_vi_timing;
ROM_PARAMS.countperscanline = entry->count_per_scanline;
ROM_PARAMS.cheats = entry->cheats;
}
else
{
strcpy(ROM_SETTINGS.goodname, ROM_PARAMS.headername);
strcat(ROM_SETTINGS.goodname, " (unknown rom)");
ROM_SETTINGS.savetype = NONE;
ROM_SETTINGS.status = 0;
ROM_SETTINGS.players = 0;
ROM_SETTINGS.rumble = 0;
ROM_PARAMS.countperop = COUNT_PER_OP_DEFAULT;
ROM_PARAMS.vitiming = ALTERNATE_VI_TIMING_DEFAULT;
ROM_PARAMS.countperscanline = DEFAULT_COUNT_PER_SCANLINE;
ROM_PARAMS.cheats = NULL;
}
/* print out a bunch of info about the ROM */
DebugMessage(M64MSG_INFO, "Goodname: %s", ROM_SETTINGS.goodname);
DebugMessage(M64MSG_INFO, "Name: %s", ROM_HEADER.Name);
imagestring(imagetype, buffer);
DebugMessage(M64MSG_INFO, "MD5: %s", ROM_SETTINGS.MD5);
DebugMessage(M64MSG_INFO, "CRC: %08" PRIX32 " %08" PRIX32, sl(ROM_HEADER.CRC1), sl(ROM_HEADER.CRC2));
DebugMessage(M64MSG_INFO, "Imagetype: %s", buffer);
DebugMessage(M64MSG_INFO, "Rom size: %d bytes (or %d Mb or %d Megabits)", g_rom_size, g_rom_size/1024/1024, g_rom_size/1024/1024*8);
DebugMessage(M64MSG_VERBOSE, "ClockRate = %" PRIX32, sl(ROM_HEADER.ClockRate));
DebugMessage(M64MSG_INFO, "Version: %" PRIX32, sl(ROM_HEADER.Release));
if(sl(ROM_HEADER.Manufacturer_ID) == 'N')
DebugMessage(M64MSG_INFO, "Manufacturer: Nintendo");
else
DebugMessage(M64MSG_INFO, "Manufacturer: %" PRIX32, sl(ROM_HEADER.Manufacturer_ID));
DebugMessage(M64MSG_VERBOSE, "Cartridge_ID: %" PRIX16, ROM_HEADER.Cartridge_ID);
countrycodestring(ROM_HEADER.Country_code, buffer);
DebugMessage(M64MSG_INFO, "Country: %s", buffer);
DebugMessage(M64MSG_VERBOSE, "PC = %" PRIX32, sl(ROM_HEADER.PC));
DebugMessage(M64MSG_VERBOSE, "Save type: %d", ROM_SETTINGS.savetype);
//Prepare Hack for GOLDENEYE
isGoldeneyeRom = 0;
if(strcmp(ROM_PARAMS.headername, "GOLDENEYE") == 0)
isGoldeneyeRom = 1;
return M64ERR_SUCCESS;
}
m64p_error open_rom(const unsigned char* romimage, unsigned int size)
{
md5_state_t state;
md5_byte_t digest[16];
romdatabase_entry* entry;
char buffer[256];
unsigned char imagetype;
int i;
m64p_handle CoreSection = NULL;
/* check input requirements */
if (rom != NULL)
{
DebugMessage(M64MSG_ERROR, "open_rom(): previous ROM image was not freed");
return M64ERR_INTERNAL;
}
if (romimage == NULL || !is_valid_rom(romimage))
{
DebugMessage(M64MSG_ERROR, "open_rom(): not a valid ROM image");
return M64ERR_INPUT_INVALID;
}
/* Clear Byte-swapped flag, since ROM is now deleted. */
g_MemHasBeenBSwapped = 0;
/* allocate new buffer for ROM and copy into this buffer */
rom_size = size;
rom = (unsigned char *) malloc(size);
if (rom == NULL)
return M64ERR_NO_MEMORY;
memcpy(rom, romimage, size);
swap_rom(rom, &imagetype, rom_size);
memcpy(&ROM_HEADER, rom, sizeof(m64p_rom_header));
/* Calculate MD5 hash */
md5_init(&state);
md5_append(&state, (const md5_byte_t*)rom, rom_size);
md5_finish(&state, digest);
for ( i = 0; i < 16; ++i )
sprintf(buffer+i*2, "%02X", digest[i]);
buffer[32] = '\0';
strcpy(ROM_SETTINGS.MD5, buffer);
/* add some useful properties to ROM_PARAMS */
ROM_PARAMS.systemtype = rom_country_code_to_system_type(ROM_HEADER.Country_code);
ROM_PARAMS.vilimit = rom_system_type_to_vi_limit(ROM_PARAMS.systemtype);
ROM_PARAMS.aidacrate = rom_system_type_to_ai_dac_rate(ROM_PARAMS.systemtype);
memcpy(ROM_PARAMS.headername, ROM_HEADER.Name, 20);
ROM_PARAMS.headername[20] = '\0';
trim(ROM_PARAMS.headername); /* Remove trailing whitespace from ROM name. */
/* Look up this ROM in the .ini file and fill in goodname, etc */
/*
if ((entry=ini_search_by_md5(digest)) != NULL ||
(entry=ini_search_by_crc(sl(ROM_HEADER.CRC1),sl(ROM_HEADER.CRC2))) != NULL)
{
strncpy(ROM_SETTINGS.goodname, entry->goodname, 255);
ROM_SETTINGS.goodname[255] = '\0';
ROM_SETTINGS.savetype = entry->savetype;
ROM_SETTINGS.status = entry->status;
ROM_SETTINGS.players = entry->players;
ROM_SETTINGS.rumble = entry->rumble;
}
else
{
strcpy(ROM_SETTINGS.goodname, ROM_PARAMS.headername);
strcat(ROM_SETTINGS.goodname, " (unknown rom)");
ROM_SETTINGS.savetype = NONE;
ROM_SETTINGS.status = 0;
ROM_SETTINGS.players = 0;
ROM_SETTINGS.rumble = 0;
}
*/
strcpy(ROM_SETTINGS.goodname, ROM_PARAMS.headername);
strcat(ROM_SETTINGS.goodname, " (unknown rom)");
ROM_SETTINGS.savetype = 0;
if (ConfigOpenSection("Core", &CoreSection) == M64ERR_SUCCESS)
{
ConfigSetDefaultInt(CoreSection, "SaveType", NONE, "The savetype for the game");
ROM_SETTINGS.savetype = ConfigGetParamInt(CoreSection, "SaveType");
}
ROM_SETTINGS.status = 0;
ROM_SETTINGS.players = 0;
ROM_SETTINGS.rumble = 0;
/* print out a bunch of info about the ROM */
DebugMessage(M64MSG_INFO, "Goodname: %s", ROM_SETTINGS.goodname);
DebugMessage(M64MSG_INFO, "Name: %s", ROM_HEADER.Name);
imagestring(imagetype, buffer);
DebugMessage(M64MSG_INFO, "MD5: %s", ROM_SETTINGS.MD5);
DebugMessage(M64MSG_INFO, "CRC: %x %x", sl(ROM_HEADER.CRC1), sl(ROM_HEADER.CRC2));
DebugMessage(M64MSG_INFO, "Imagetype: %s", buffer);
DebugMessage(M64MSG_INFO, "Rom size: %d bytes (or %d Mb or %d Megabits)", rom_size, rom_size/1024/1024, rom_size/1024/1024*8);
DebugMessage(M64MSG_VERBOSE, "ClockRate = %x", sl(ROM_HEADER.ClockRate));
DebugMessage(M64MSG_INFO, "Version: %x", sl(ROM_HEADER.Release));
if(sl(ROM_HEADER.Manufacturer_ID) == 'N')
DebugMessage(M64MSG_INFO, "Manufacturer: Nintendo");
else
DebugMessage(M64MSG_INFO, "Manufacturer: %x", sl(ROM_HEADER.Manufacturer_ID));
DebugMessage(M64MSG_VERBOSE, "Cartridge_ID: %x", ROM_HEADER.Cartridge_ID);
countrycodestring(ROM_HEADER.Country_code, buffer);
DebugMessage(M64MSG_INFO, "Country: %s", buffer);
DebugMessage(M64MSG_VERBOSE, "PC = %x", sl((unsigned int)ROM_HEADER.PC));
DebugMessage(M64MSG_VERBOSE, "Save type: %d", ROM_SETTINGS.savetype);
//Prepare Hack for GOLDENEYE
isGoldeneyeRom = 0;
if(strcmp(ROM_PARAMS.headername, "GOLDENEYE") == 0)
isGoldeneyeRom = 1;
return M64ERR_SUCCESS;
}
