448 lines
13 KiB
C#
448 lines
13 KiB
C#
using System;
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using System.IO;
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using BizHawk.Common;
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using BizHawk.Emulation.Common;
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using BizHawk.Emulation.Cores.Atari.Atari2600;
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using BizHawk.Emulation.Cores.Atari.Atari7800;
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using BizHawk.Emulation.Cores.Calculators;
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using BizHawk.Emulation.Cores.ColecoVision;
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using BizHawk.Emulation.Cores.Computers.Commodore64;
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using BizHawk.Emulation.Cores.Consoles.Sega.gpgx;
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using BizHawk.Emulation.Cores.Intellivision;
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using BizHawk.Emulation.Cores.Nintendo.Gameboy;
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using BizHawk.Emulation.Cores.Nintendo.GBA;
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using BizHawk.Emulation.Cores.Nintendo.N64;
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using BizHawk.Emulation.Cores.Nintendo.NES;
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using BizHawk.Emulation.Cores.Nintendo.SNES;
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using BizHawk.Emulation.Cores.PCEngine;
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using BizHawk.Emulation.Cores.Sega.MasterSystem;
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using BizHawk.Emulation.Cores.Sega.Saturn;
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using BizHawk.Emulation.Cores.Sony.PSP;
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using BizHawk.Emulation.Cores.Sony.PSX;
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using BizHawk.Emulation.DiscSystem;
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namespace BizHawk.Client.Common
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{
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public class RomLoader
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{
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// helper methods for the settings events
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private object GetCoreSettings<T>()
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where T : IEmulator
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{
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var e = new SettingsLoadArgs(typeof(T));
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if (OnLoadSettings != null)
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{
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OnLoadSettings(this, e);
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}
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return e.Settings;
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}
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private object GetCoreSyncSettings<T>()
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where T : IEmulator
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{
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var e = new SettingsLoadArgs(typeof(T));
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if (OnLoadSyncSettings != null)
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{
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OnLoadSyncSettings(this, e);
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}
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return e.Settings;
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}
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public RomLoader()
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{
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Deterministic = true;
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}
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// TODO: reconsider the need for exposing these;
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public IEmulator LoadedEmulator { get; private set; }
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public GameInfo Game { get; private set; }
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public RomGame Rom { get; private set; }
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public string CanonicalFullPath { get; private set; }
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public bool Deterministic { get; private set; }
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public class RomErrorArgs : EventArgs
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{
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// TODO: think about naming here, what to pass, a lot of potential good information about what went wrong could go here!
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public RomErrorArgs(string message, string systemId)
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{
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Message = message;
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AttemptedCoreLoad = systemId;
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}
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public string Message { get; private set; }
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public string AttemptedCoreLoad { get; private set; }
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}
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public class SettingsLoadArgs : EventArgs
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{
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public object Settings { get; set; }
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public Type Core { get; private set; }
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public SettingsLoadArgs(Type t)
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{
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Core = t;
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Settings = null;
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}
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}
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public delegate void SettingsLoadEventHandler(object sender, SettingsLoadArgs e);
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public event SettingsLoadEventHandler OnLoadSettings;
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public event SettingsLoadEventHandler OnLoadSyncSettings;
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public delegate void LoadErrorEventHandler(object sener, RomErrorArgs e);
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public event LoadErrorEventHandler OnLoadError;
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public Func<HawkFile, int?> ChooseArchive { get; set; }
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private int? HandleArchive(HawkFile file)
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{
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if (ChooseArchive != null)
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{
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return ChooseArchive(file);
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}
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return null;
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}
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private void ThrowLoadError(string message, string systemId)
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{
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if (OnLoadError != null)
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{
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OnLoadError(this, new RomErrorArgs(message, systemId));
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}
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}
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public bool LoadRom(string path, CoreComm nextComm)
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{
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if (path == null)
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{
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return false;
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}
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using (var file = new HawkFile())
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{
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var romExtensions = new[] { "SMS", "SMC", "SFC", "PCE", "SGX", "GG", "SG", "BIN", "GEN", "MD", "SMD", "GB", "NES", "FDS", "ROM", "INT", "GBC", "UNF", "A78", "CRT", "COL", "XML", "Z64", "V64", "N64" };
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// lets not use this unless we need to
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// file.NonArchiveExtensions = romExtensions;
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file.Open(path);
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// if the provided file doesnt even exist, give up!
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if (!file.Exists)
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{
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return false;
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}
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// try binding normal rom extensions first
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if (!file.IsBound)
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{
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file.BindSoleItemOf(romExtensions);
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}
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// if we have an archive and need to bind something, then pop the dialog
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if (file.IsArchive && !file.IsBound)
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{
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var result = HandleArchive(file);
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if (result.HasValue)
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{
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file.BindArchiveMember(result.Value);
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}
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else
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{
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return false;
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}
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}
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IEmulator nextEmulator = null;
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RomGame rom = null;
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GameInfo game = null;
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try
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{
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var ext = file.Extension.ToLower();
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if (ext == ".iso" || ext == ".cue")
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{
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var disc = ext == ".iso" ? Disc.FromIsoPath(path) : Disc.FromCuePath(path, new CueBinPrefs());
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var hash = disc.GetHash();
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game = Database.CheckDatabase(hash);
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if (game == null)
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{
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// try to use our wizard methods
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game = new GameInfo { Name = Path.GetFileNameWithoutExtension(file.Name), Hash = hash };
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switch (disc.DetectDiscType())
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{
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case DiscType.SegaSaturn:
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game.System = "SAT";
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break;
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case DiscType.SonyPSP:
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game.System = "PSP";
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break;
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case DiscType.SonyPSX:
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game.System = "PSX";
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break;
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case DiscType.MegaCD:
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game.System = "GEN";
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break;
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case DiscType.TurboCD:
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case DiscType.UnknownCDFS:
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case DiscType.UnknownFormat:
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default: // PCECD was bizhawk's first CD core,
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// and during that time, all CDs were blindly sent to it
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// so this prevents regressions
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game.System = "PCECD";
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break;
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}
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}
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switch (game.System)
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{
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case "GEN":
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var genesis = new GPGX(
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nextComm, null, disc, "GEN", GetCoreSettings<GPGX>());
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nextEmulator = genesis;
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break;
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case "SAT":
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nextEmulator = new Yabause(nextComm, disc, GetCoreSyncSettings<Yabause>());
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break;
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case "PSP":
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nextEmulator = new PSP(nextComm, file.Name);
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break;
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case "PSX":
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nextEmulator = new Octoshock(nextComm);
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(nextEmulator as Octoshock).LoadCuePath(file.CanonicalFullPath);
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nextEmulator.CoreComm.RomStatusDetails = "PSX etc.";
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break;
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case "PCE":
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case "PCECD":
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var biosPath = Global.FirmwareManager.Request("PCECD", "Bios");
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if (!File.Exists(biosPath))
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{
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ThrowLoadError("PCE-CD System Card not found. Please check the BIOS path in Config->Paths->PC Engine.", game.System);
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return false;
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}
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rom = new RomGame(new HawkFile(biosPath));
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if (rom.GameInfo.Status == RomStatus.BadDump)
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{
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ThrowLoadError(
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"The PCE-CD System Card you have selected is known to be a bad dump. This may cause problems playing PCE-CD games.\n\n"
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+ "It is recommended that you find a good dump of the system card. Sorry to be the bearer of bad news!",
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game.System);
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}
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else if (rom.GameInfo.NotInDatabase)
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{
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ThrowLoadError(
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"The PCE-CD System Card you have selected is not recognized in our database. That might mean it's a bad dump, or isn't the correct rom.",
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game.System);
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}
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else if (rom.GameInfo["BIOS"] == false)
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{
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ThrowLoadError(
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"The PCE-CD System Card you have selected is not a BIOS image. You may have selected the wrong rom.",
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game.System);
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}
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if (rom.GameInfo["SuperSysCard"])
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{
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game.AddOption("SuperSysCard");
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}
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if (game["NeedSuperSysCard"] && game["SuperSysCard"] == false)
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{
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ThrowLoadError(
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"This game requires a version 3.0 System card and won't run with the system card you've selected. Try selecting a 3.0 System Card in Config->Paths->PC Engine.",
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game.System);
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}
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game.FirmwareHash = Util.Hash_SHA1(rom.RomData);
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nextEmulator = new PCEngine(nextComm, game, disc, rom.RomData, GetCoreSettings<PCEngine>());
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break;
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}
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}
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else if (file.Extension.ToLower() == ".xml")
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{
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try
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{
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var xmlGame = XmlGame.Create(file); // if load fails, are we supposed to retry as a bsnes XML????????
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game = xmlGame.GI;
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switch (game.System)
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{
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case "DGB":
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var left = Database.GetGameInfo(xmlGame.Assets["LeftRom"], "left.gb");
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var right = Database.GetGameInfo(xmlGame.Assets["RightRom"], "right.gb");
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nextEmulator = new GambatteLink(
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nextComm,
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left,
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xmlGame.Assets["LeftRom"],
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right,
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xmlGame.Assets["RightRom"],
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GetCoreSettings<GambatteLink>(),
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GetCoreSyncSettings<GambatteLink>());
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// other stuff todo
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break;
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default:
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return false;
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}
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}
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catch (Exception ex)
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{
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ThrowLoadError(ex.ToString(), "XMLGame Load Error"); // TODO: don't pass in XMLGame Load Error as a system ID
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}
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}
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else // most extensions
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{
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rom = new RomGame(file);
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game = rom.GameInfo;
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var isXml = false;
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// other xml has already been handled
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if (file.Extension.ToLower() == ".xml")
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{
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game.System = "SNES";
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isXml = true;
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}
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switch (game.System)
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{
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case "SNES":
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{
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// need to get rid of this hack at some point
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((CoreFileProvider)nextComm.CoreFileProvider).SubfileDirectory = Path.GetDirectoryName(path.Replace("|", String.Empty)); // Dirty hack to get around archive filenames (since we are just getting the directory path, it is safe to mangle the filename
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var snes = new LibsnesCore(nextComm, GetCoreSettings<LibsnesCore>(), GetCoreSyncSettings<LibsnesCore>());
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nextEmulator = snes;
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var romData = isXml ? null : rom.FileData;
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var xmlData = isXml ? rom.FileData : null;
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snes.Load(game, romData, Deterministic, xmlData);
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}
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break;
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case "SMS":
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case "SG":
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case "GG":
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nextEmulator = new SMS(nextComm, game, rom.RomData, GetCoreSettings<SMS>(), GetCoreSyncSettings<SMS>());
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break;
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case "A26":
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nextEmulator = new Atari2600(
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nextComm,
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game,
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rom.FileData,
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GetCoreSettings<Atari2600>(),
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GetCoreSyncSettings<Atari2600>());
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break;
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case "PCE":
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case "PCECD":
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case "SGX":
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nextEmulator = new PCEngine(nextComm, game, rom.RomData, GetCoreSettings<PCEngine>());
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break;
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case "GEN":
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// nextEmulator = new Genesis(nextComm, game, rom.RomData);
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nextEmulator = new GPGX(nextComm, rom.RomData, null, "GEN", GetCoreSyncSettings<GPGX>());
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break;
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case "TI83":
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nextEmulator = new TI83(nextComm, game, rom.RomData);
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break;
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case "NES":
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nextEmulator = new NES(
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nextComm,
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game,
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rom.FileData,
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GetCoreSettings<NES>(),
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GetCoreSyncSettings<NES>());
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break;
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case "GB":
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case "GBC":
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if (!Global.Config.GB_AsSGB)
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{
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nextEmulator = new Gameboy(
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nextComm,
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game,
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rom.FileData,
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GetCoreSettings<Gameboy>(),
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GetCoreSyncSettings<Gameboy>());
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}
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else
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{
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try
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{
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game.System = "SNES";
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game.AddOption("SGB");
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var snes = new LibsnesCore(nextComm, GetCoreSettings<LibsnesCore>(), GetCoreSyncSettings<LibsnesCore>());
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nextEmulator = snes;
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snes.Load(game, rom.FileData, Deterministic, null);
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}
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catch
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{
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// failed to load SGB bios. to avoid catch-22, disable SGB mode
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ThrowLoadError("Failed to load a GB rom in SGB mode. Disabling SGB Mode.", game.System);
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Global.Config.GB_AsSGB = false;
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throw;
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}
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}
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break;
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case "Coleco":
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nextEmulator = new ColecoVision(nextComm, game, rom.RomData, GetCoreSyncSettings<ColecoVision>());
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break;
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case "INTV":
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nextEmulator = new Intellivision(nextComm, game, rom.RomData);
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break;
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case "A78":
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var gamedbpath = Path.Combine(PathManager.GetExeDirectoryAbsolute(), "gamedb", "EMU7800.csv");
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nextEmulator = new Atari7800(nextComm, game, rom.RomData, gamedbpath);
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break;
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case "C64":
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var c64 = new C64(nextComm, game, rom.RomData, rom.Extension);
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c64.HardReset(); // TODO: The core should be responsible for this!
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nextEmulator = c64;
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break;
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case "GBA":
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if (VersionInfo.INTERIM)
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{
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GBA gba = new GBA(nextComm);
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gba.Load(rom.RomData);
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nextEmulator = gba;
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}
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break;
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case "N64":
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nextEmulator = new N64(nextComm, game, rom.RomData, GetCoreSyncSettings<N64>());
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break;
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case "DEBUG":
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if (VersionInfo.INTERIM)
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{
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nextEmulator = LibRetroEmulator.CreateDebug(nextComm, rom.RomData);
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}
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break;
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}
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}
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if (nextEmulator == null)
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{
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ThrowLoadError("No core could load the rom.", "NULL");
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return false;
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}
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}
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catch (Exception ex)
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{
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ThrowLoadError("Exception during loadgame:\n\n" + ex, "NULL");
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return false;
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}
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Rom = rom;
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LoadedEmulator = nextEmulator;
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Game = game;
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CanonicalFullPath = file.CanonicalFullPath;
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return true;
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}
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}
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}
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} |