private void TurnOn()
{
if (_backend != null)
{
return;
}
var buffers = new Buffers(UnityEngine.SystemInfo.SupportsTextureFormat(TextureFormat.RGB565));
_backend = new Backend(buffers);
_backend.On(Rom.bytes);
var w = Convert.ToInt32(Backend.SystemAvInfo.geometry.base_width);
var h = Convert.ToInt32(Backend.SystemAvInfo.geometry.base_height);
Texture =
new Texture2D(w, h, buffers.VideoSupport16Bit ? TextureFormat.RGB565 : TextureFormat.RGB24, false)
{
filterMode = FilterMode.Point
};
Display.material.mainTexture = Texture;
AudioSource.clip = AudioClip.Create(name, buffers.AudioBufferSize / 2, 2, 44100, true, OnAudioRead);
AudioSource.playOnAwake = false;
AudioSource.spatialBlend = 0;
AudioSource.loop = true;
Bridges.SetupExternalInput();
}
public void SaveState(string filepath)
{
var ptr = Marshal.UnsafeAddrOfPinnedArrayElement(Buffers.StateBuffer, 0);
Bridges.retro_serialize(ptr, Buffers.StateBufferSize);
using (var file = File.OpenWrite(filepath))
file.Write(Buffers.StateBuffer, 0, Buffers.StateBuffer.Length);
}
public void LoadState(string filepath)
{
using (var file = File.OpenRead(filepath))
file.Read(Buffers.StateBuffer, 0, Buffers.StateBuffer.Length);
var ptr = Marshal.UnsafeAddrOfPinnedArrayElement(Buffers.StateBuffer, 0);
Bridges.retro_unserialize(ptr, Buffers.StateBufferSize);
}
private void SaveMemory(string filepath, uint memoryType)
{
var size = Bridges.retro_get_memory_size(memoryType);
var ptr = Bridges.retro_get_memory_data(memoryType);
if (size <= 0)
{
return;
}
var bytes = new byte[size];
Marshal.Copy(ptr, bytes, 0, (int)size);
using (var file = File.OpenWrite(filepath))
file.Write(bytes, 0, (int)size);
}
public unsafe void LoadGame(byte[] bytes)
{
if (bytes == null || bytes.Length == 0)
{
return;
}
var offset = (0x400 << bytes[0x7FD7] == bytes.Length) ? 0x7000 : 0xF000;
RomHeader = new RomHeader
{
GameTitle = System.Text.Encoding.GetEncoding("iso-2022-jp").GetString(bytes, offset | 0xFC0, 21).Trim(),
RomType = bytes[offset | 0xFD6],
RomSize = 0x400 << bytes[offset | 0xFD7],
SaveRamSize = 0x400 << bytes[offset | 0xFD8],
CountryCode = bytes[offset | 0xFD9],
License = bytes[offset | 0xFDA],
Version = bytes[offset | 0xFDB]
};
var arrayPointer = Marshal.AllocHGlobal(bytes.Length * Marshal.SizeOf(typeof(byte)));
Marshal.Copy(bytes, 0, arrayPointer, bytes.Length);
GameInfo = new GameInfo
{
path = (char *)Marshal.StringToHGlobalUni(Path.Combine(Buffers.TemporaryDataPath, "temp.bytes")).ToPointer(),
size = (uint)bytes.Length,
data = arrayPointer.ToPointer()
};
Bridges.retro_unload_game();
if (!Bridges.retro_load_game(ref GameInfo))
{
throw new ArgumentException();
}
SystemAvInfo = new SystemAvInfo();
Bridges.retro_get_system_av_info(ref SystemAvInfo);
Buffers.SetSystemAvInfo(SystemAvInfo);
Buffers.SetStateSize(Bridges.retro_serialize_size());
}
private void LoadMemory(string filepath, uint memoryType)
{
if (!File.Exists(filepath))
{
return;
}
var size = Bridges.retro_get_memory_size(memoryType);
var ptr = Bridges.retro_get_memory_data(memoryType);
if (size <= 0)
{
return;
}
var bytes = new byte[size];
using (var file = File.OpenRead(filepath))
file.Read(bytes, 0, (int)size);
Marshal.Copy(bytes, 0, ptr, (int)size);
}
public unsafe void Init()
{
_environment = RetroEnvironment;
_videoRefresh = RetroVideoRefresh;
_audioSample = RetroAudioSample;
_audioSampleBatch = RetroAudioSampleBatch;
_inputPoll = RetroInputPoll;
_inputState = RetroInputState;
_controllerPortDevide = RetroControllerPortDevide;
SystemInfo = new SystemInfo();
Bridges.retro_get_system_info(ref SystemInfo);
Bridges.retro_set_environment(_environment);
Bridges.retro_set_video_refresh(_videoRefresh);
Bridges.retro_set_audio_sample(_audioSample);
Bridges.retro_set_audio_sample_batch(_audioSampleBatch);
Bridges.retro_set_input_poll(_inputPoll);
Bridges.retro_set_input_state(_inputState);
Bridges.retro_set_controller_port_device(_controllerPortDevide);
Bridges.retro_init();
}
private unsafe void LoadGame(byte[] bytes)
{
var arrayPointer = Marshal.AllocHGlobal(bytes.Length * Marshal.SizeOf(typeof(byte)));
Marshal.Copy(bytes, 0, arrayPointer, bytes.Length);
GameInfo = new GameInfo
{
path = (char *)Marshal.StringToHGlobalUni(Path.GetTempFileName()).ToPointer(),
size = (uint)bytes.Length,
data = arrayPointer.ToPointer()
};
if (!Bridges.retro_load_game(ref GameInfo))
{
throw new ArgumentException();
}
SystemAvInfo = new SystemAvInfo();
Bridges.retro_get_system_av_info(ref SystemAvInfo);
Buffers.SetSystemAvInfo(SystemAvInfo);
Buffers.SetStateSize(Bridges.retro_serialize_size());
}
public void TurnOn(string filename = "")
{
if (_backend != null)
{
return;
}
var buffers = new Buffers()
{
VideoSupport16Bit = UnityEngine.SystemInfo.SupportsTextureFormat(TextureFormat.RGB565),
SystemDirectory = Application.persistentDataPath,
PersistentDataPath = Application.persistentDataPath,
TemporaryDataPath = Application.temporaryCachePath,
StreamingAssets = Application.streamingAssetsPath
};
_backend = new Backend(buffers);
_backend.Init();
_backend.LoadGame(GetRom(filename));
_backend.LoadSram(GetSramFilePaths());
_backend.LoadRtc(GetRtcFilePaths());
Debug.Log($"load game: {Backend.RomHeader.GameTitle}");
_texture = new Texture2D(buffers.VideoUnitSize, buffers.VideoUnitSize,
buffers.VideoSupport16Bit ? TextureFormat.RGB565 : TextureFormat.RGBA32,
false)
{
filterMode = FilterMode.Point
};
InputMapper = new InputMapper();
InputMapper.SetKeyAsICade();
Display.material.mainTexture = _texture;
AudioSource.clip = AudioClip.Create(name, buffers.AudioBufferSize / 2, 2, 44100, true, OnAudioRead);
AudioSource.playOnAwake = false;
AudioSource.spatialBlend = 0;
AudioSource.loop = true;
Bridges.SetupExternalInput();
}
private static void RetroEnvironmentShutdown()
{
Bridges.retro_unload_game();
Bridges.retro_deinit();
}
public void Reset()
{
Bridges.retro_reset();
}
public void Loop()
{
Bridges.retro_run();
}
public void DeInit()
{
Bridges.retro_unload_game();
Bridges.retro_deinit();
}
