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Mesen/Core/GameDatabase.cpp

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C++
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#include "stdafx.h"
#include "RomData.h"
#include "MessageManager.h"
#include "../Utilities/CRC32.h"
#include "../Utilities/FolderUtilities.h"
#include "../Utilities/StringUtilities.h"
#include "../Utilities/HexUtilities.h"
#include "GameDatabase.h"
#include "EmulationSettings.h"
#include "UnifLoader.h"
std::unordered_map<uint32_t, GameInfo> GameDatabase::_gameDatabase;
template<typename T>
T GameDatabase::ToInt(string value)
{
if(value.empty()) {
return 0;
}
return std::stoi(value);
}
void GameDatabase::InitDatabase()
{
if(_gameDatabase.size() == 0) {
string dbPath = FolderUtilities::CombinePath(FolderUtilities::GetHomeFolder(), "MesenDB.txt");
ifstream db(dbPath, ios::in | ios::binary);
while(db.good()) {
string lineContent;
std::getline(db, lineContent);
if(lineContent.empty() || lineContent[0] == '#') {
continue;
}
vector<string> values = StringUtilities::Split(lineContent, ',');
if(values.size() >= 16) {
GameInfo gameInfo{
(uint32_t)std::stoll(values[0], nullptr, 16),
values[1],
values[2],
values[3],
values[4],
(uint16_t)ToInt<uint32_t>(values[5]),
ToInt<uint32_t>(values[6]),
ToInt<uint32_t>(values[7]),
ToInt<uint32_t>(values[8]),
ToInt<uint32_t>(values[9]),
ToInt<uint32_t>(values[10]),
ToInt<uint32_t>(values[11]) == 0 ? false : true,
values[12],
values[13],
values[14],
values[15]
};
if(gameInfo.MapperID == 65000) {
gameInfo.MapperID = UnifLoader::GetMapperID(gameInfo.Board);
}
if(!gameInfo.InputType.empty() && gameInfo.InputType[gameInfo.InputType.size() - 1] == '\r') {
gameInfo.InputType = gameInfo.InputType.substr(0, gameInfo.InputType.size() - 1);
}
_gameDatabase[gameInfo.Crc] = gameInfo;
}
}
MessageManager::Log();
MessageManager::Log("[DB] Initialized - " + std::to_string(_gameDatabase.size()) + " games in DB");
}
}
BusConflictType GameDatabase::GetBusConflictType(string busConflictSetting)
{
if(busConflictSetting.compare("Y") == 0) {
return BusConflictType::Yes;
} else if(busConflictSetting.compare("N") == 0) {
return BusConflictType::No;
}
return BusConflictType::Default;
}
GameSystem GameDatabase::GetGameSystem(string system)
{
if(system.compare("NesNtsc") == 0) {
return GameSystem::NesNtsc;
} else if(system.compare("NesPal") == 0) {
return GameSystem::NesPal;
} else if(system.compare("Famicom") == 0) {
return GameSystem::Famicom;
} else if(system.compare("VsUni") == 0) {
return GameSystem::VsUniSystem;
} else if(system.compare("Dendy") == 0) {
return GameSystem::Dendy;
} else if(system.compare("Playchoice") == 0) {
return GameSystem::Playchoice;
}
return GameSystem::NesNtsc;
}
void GameDatabase::InitializeInputDevices(string inputType, GameSystem system)
{
if(EmulationSettings::CheckFlag(EmulationFlags::AutoConfigureInput)) {
ControllerType controllers[4] = { ControllerType::StandardController, ControllerType::StandardController, ControllerType::None, ControllerType::None };
ExpansionPortDevice expDevice = ExpansionPortDevice::None;
EmulationSettings::ClearFlags(EmulationFlags::HasFourScore);
bool isFamicom = (system == GameSystem::Famicom || system == GameSystem::FDS);
if(inputType.compare("Zapper") == 0) {
MessageManager::Log("[DB] Input: Zapper connected");
if(isFamicom) {
expDevice = ExpansionPortDevice::Zapper;
} else {
controllers[1] = ControllerType::Zapper;
}
} else if(inputType.compare("FourPlayer") == 0) {
MessageManager::Log("[DB] Input: Four player adapter connected");
EmulationSettings::SetFlags(EmulationFlags::HasFourScore);
if(isFamicom) {
expDevice = ExpansionPortDevice::FourPlayerAdapter;
controllers[2] = controllers[3] = ControllerType::StandardController;
} else {
controllers[2] = controllers[3] = ControllerType::StandardController;
}
} else if(inputType.compare("Arkanoid") == 0) {
MessageManager::Log("[DB] Input: Arkanoid controller connected");
if(isFamicom) {
expDevice = ExpansionPortDevice::ArkanoidController;
} else {
controllers[1] = ControllerType::ArkanoidController;
}
} else if(inputType.compare("OekaKidsTablet") == 0) {
MessageManager::Log("[DB] Input: Oeka Kids Tablet connected");
system = GameSystem::Famicom;
expDevice = ExpansionPortDevice::OekaKidsTablet;
} else {
MessageManager::Log("[DB] Input: 2 standard controllers connected");
}
EmulationSettings::SetConsoleType(isFamicom ? ConsoleType::Famicom : ConsoleType::Nes);
for(int i = 0; i < 4; i++) {
EmulationSettings::SetControllerType(i, controllers[i]);
}
EmulationSettings::SetExpansionDevice(expDevice);
}
}
uint8_t GameDatabase::GetSubMapper(GameInfo &info)
{
if(!info.SubmapperID.empty()) {
return ToInt<uint8_t>(info.SubmapperID);
} else {
switch(info.MapperID) {
case 1:
if(info.Board.find("SEROM") != string::npos ||
info.Board.find("SHROM") != string::npos ||
info.Board.find("SH1ROM") != string::npos) {
//SEROM, SHROM, SH1ROM have fixed PRG banking
return 5;
}
break;
case 3:
if(info.Board.compare("NES-CNROM") == 0) {
//Enable bus conflicts for CNROM games
//Fixes "Cybernoid - The Fighting Machine" which requires open bus behavior to work properly
return 2;
}
break;
case 4:
if(info.Board.compare("ACCLAIM-MC-ACC") == 0) {
return 3; //Acclaim MC-ACC (MMC3 clone)
} else if(info.Chip.compare("MMC6B") == 0) {
return 1; //MMC6 (Star Tropics)
}
break;
case 21:
if(info.Pcb.compare("352398") == 0) {
return 1; //VRC4a
} else if(info.Pcb.compare("352889") == 0) {
return 2; //VRC4c
}
break;
case 23:
if(info.Pcb.compare("352396") == 0) {
return 2; //VRC4e
} else if(info.Pcb.compare("350603") == 0 || info.Pcb.compare("350636") == 0 || info.Pcb.compare("350926") == 0 || info.Pcb.compare("351179") == 0 || info.Pcb.compare("LROG009-00") == 0) {
return 3; //VRC2b
}
break;
case 25:
if(info.Pcb.compare("351406") == 0) {
return 1; //VRC4b
} else if(info.Pcb.compare("352400") == 0) {
return 2; //VRC4d
} else if(info.Pcb.compare("351948") == 0) {
return 3; //VRC2c
}
break;
case 32:
if(info.Board.compare("IREM-G101-B") == 0) {
return 1; //Major League
}
break;
case 71:
if(info.Board.compare("CAMERICA-BF9097") == 0) {
return 1; //Fire Hawk
}
break;
case 78:
if(info.Board.compare("IREM-HOLYDIVER") == 0) {
return 3; //Holy Diver
}
break;
case 185:
if(info.Crc == 0x0F05FF0A) {
//Seicross (v2)
//Not a real submapper, used to alter behavior specifically for this game
//This is equivalent to FCEUX's mapper 181
return 16;
}
break;
case 210:
if(info.Board.compare("NAMCOT-175") == 0) {
return 1; //Namco 175
} else if(info.Board.compare("NAMCOT-340") == 0) {
return 2; //Namco 340
}
break;
}
}
return 0;
}
bool GameDatabase::GetDbRomSize(uint32_t romCrc, uint32_t &prgSize, uint32_t &chrSize)
{
InitDatabase();
auto result = _gameDatabase.find(romCrc);
if(result != _gameDatabase.end()) {
prgSize = result->second.PrgRomSize * 1024;
chrSize = result->second.ChrRomSize * 1024;
return true;
}
return false;
}
bool GameDatabase::GetiNesHeader(uint32_t romCrc, NESHeader &nesHeader)
{
GameInfo info = {};
InitDatabase();
auto result = _gameDatabase.find(romCrc);
if(result != _gameDatabase.end()) {
info = result->second;
nesHeader.Byte9 = 0;
if(info.PrgRomSize > 4096) {
uint16_t prgSize = info.PrgRomSize / 16;
nesHeader.PrgCount = prgSize & 0xFF;
nesHeader.Byte9 |= (prgSize & 0xF00) >> 8;
} else {
nesHeader.PrgCount = info.PrgRomSize / 16;
}
if(info.ChrRomSize > 2048) {
uint16_t chrSize = info.ChrRomSize / 8;
nesHeader.ChrCount = chrSize & 0xFF;
nesHeader.Byte9 |= (chrSize & 0xF00) >> 4;
} else {
nesHeader.ChrCount = info.ChrRomSize / 8;
}
nesHeader.Byte6 = (info.MapperID & 0x0F) << 4;
if(info.HasBattery) {
nesHeader.Byte6 |= 0x02;
}
if(info.Mirroring.compare("v") == 0) {
nesHeader.Byte6 |= 0x01;
}
nesHeader.Byte7 = (info.MapperID & 0xF0);
GameSystem system = GetGameSystem(info.System);
if(system == GameSystem::Playchoice) {
nesHeader.Byte7 |= 0x02;
} else if(system == GameSystem::VsUniSystem) {
nesHeader.Byte7 |= 0x01;
}
//Don't set this, otherwise the header will be used over the game DB data
//nesHeader.Byte7 |= 0x08; //NES 2.0 marker
nesHeader.Byte8 = ((GetSubMapper(info) & 0x0F) << 4) | ((info.MapperID & 0xF00) >> 8);
nesHeader.Byte10 = 0;
if(info.SaveRamSize > 0) {
nesHeader.Byte10 |= ((int)log2(info.SaveRamSize * 1024) - 6) << 4;
}
if(info.WorkRamSize > 0) {
nesHeader.Byte10 |= ((int)log2(info.WorkRamSize * 1024) - 6);
}
nesHeader.Byte11 = 0;
if(info.ChrRamSize > 0) {
nesHeader.Byte11 |= ((int)log2(info.ChrRamSize * 1024) - 6);
}
nesHeader.Byte12 = system == GameSystem::NesPal ? 0x01 : 0;
nesHeader.Byte13 = 0; //VS PPU variant
return true;
}
return false;
}
void GameDatabase::SetGameInfo(uint32_t romCrc, RomData &romData, bool updateRomData)
{
GameInfo info = {};
InitDatabase();
auto result = _gameDatabase.find(romCrc);
if(result != _gameDatabase.end()) {
MessageManager::Log("[DB] Game found in database");
info = result->second;
if(info.MapperID < UnifBoards::UnknownBoard) {
MessageManager::Log("[DB] Mapper: " + std::to_string(info.MapperID) + " Sub: " + std::to_string(GetSubMapper(info)));
} else if(info.MapperID == UnifBoards::UnknownBoard) {
MessageManager::DisplayMessage("Error", "UnsupportedMapper", "UNIF: " + info.Board);
}
MessageManager::Log("[DB] System : " + info.System);
if(!info.Board.empty()) {
MessageManager::Log("[DB] Board: " + info.Board);
}
if(!info.Chip.empty()) {
MessageManager::Log("[DB] Chip: " + info.Chip);
}
switch(GetBusConflictType(info.BusConflicts)) {
case BusConflictType::Yes: MessageManager::Log("[DB] Bus conflicts: Yes"); break;
case BusConflictType::No: MessageManager::Log("[DB] Bus conflicts: No"); break;
}
if(!info.Mirroring.empty()) {
string msg = "[DB] Mirroring: ";
switch(info.Mirroring[0]) {
case 'h': msg += "Horizontal"; break;
case 'v': msg += "Vertical"; break;
case '4': msg += "4 Screens"; break;
case 'a': msg += "Single screen"; break;
}
MessageManager::Log(msg);
}
MessageManager::Log("[DB] PRG ROM: " + std::to_string(info.PrgRomSize) + " KB");
MessageManager::Log("[DB] CHR ROM: " + std::to_string(info.ChrRomSize) + " KB");
if(info.ChrRamSize > 0) {
MessageManager::Log("[DB] CHR RAM: " + std::to_string(info.ChrRamSize) + " KB");
}
if(info.WorkRamSize > 0) {
MessageManager::Log("[DB] Work RAM: " + std::to_string(info.WorkRamSize) + " KB");
}
if(info.SaveRamSize > 0) {
MessageManager::Log("[DB] Save RAM: " + std::to_string(info.SaveRamSize) + " KB");
}
MessageManager::Log("[DB] Battery: " + string(info.HasBattery ? "Yes" : "No"));
if(updateRomData) {
MessageManager::Log("[DB] Database info will be used instead of file header.");
UpdateRomData(info, romData);
}
InitializeInputDevices(info.InputType, romData.System);
#ifdef _DEBUG
MessageManager::DisplayMessage("DB", "Mapper: " + std::to_string(romData.MapperID) + " Sub: " + std::to_string(romData.SubMapperID) + " System: " + info.System);
#endif
} else {
MessageManager::Log("[DB] Game not found in database");
}
romData.DatabaseInfo = info;
}
void GameDatabase::UpdateRomData(GameInfo &info, RomData &romData)
{
romData.MapperID = info.MapperID;
romData.System = GetGameSystem(info.System);
romData.SubMapperID = GetSubMapper(info);
romData.BusConflicts = GetBusConflictType(info.BusConflicts);
if(info.ChrRamSize > 0) {
romData.ChrRamSize = info.ChrRamSize * 1024;
}
if(info.WorkRamSize > 0) {
romData.WorkRamSize = info.WorkRamSize * 1024;
}
if(info.SaveRamSize > 0) {
romData.SaveRamSize = info.SaveRamSize * 1024;
}
romData.HasBattery |= info.HasBattery;
if(!info.Mirroring.empty()) {
switch(info.Mirroring[0]) {
case 'h': romData.Mirroring = MirroringType::Horizontal; break;
case 'v': romData.Mirroring = MirroringType::Vertical; break;
case '4': romData.Mirroring = MirroringType::FourScreens; break;
case 'a': romData.Mirroring = MirroringType::ScreenAOnly; break;
}
}
}
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