/// <summary>
/// Loads no game.
/// </summary>
public void LoadGame()
{
ThrowIfNotInitialized();
if (gameLoaded)
{
throw new Exception("You need to unload the currently loaded game.");
}
Native.retro_game_info gameInfo = new Native.retro_game_info();
gameInfo.path = "";
if (Info.RequiresFullGamePath || !Info.SupportsNoGame)
{
throw new Exception("This core does not supported the specified loading mode.");
}
else
{
gameInfo.data = IntPtr.Zero;
gameInfo.size = 0;
}
gameInfo.meta = "";
IntPtr gamePtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Native.retro_game_info)));
Marshal.StructureToPtr(gameInfo, gamePtr, false);
retro_load_game(gamePtr);
IntPtr infoPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Native.retro_system_av_info)));
retro_get_system_av_info(infoPtr);
Native.retro_system_av_info info = (Native.retro_system_av_info)Marshal.PtrToStructure(infoPtr, typeof(Native.retro_system_av_info));
HandleAVInfo(info, false);
gameLoaded = true;
}
/// <summary>
/// Load a game from a file.
/// </summary>
public void LoadGame(string filename)
{
ThrowIfNotInitialized();
if (gameLoaded)
{
throw new Exception("You need to unload the currently loaded game.");
}
Native.retro_game_info gameInfo = new Native.retro_game_info();
gameInfo.path = filename;
if(Info.RequiresFullGamePath)
{
gameInfo.data = IntPtr.Zero;
gameInfo.size = 0;
}
else
{
byte[] data = File.ReadAllBytes(filename);
gameInfo.data = Marshal.AllocHGlobal(data.Length);
Marshal.Copy(data, 0, gameInfo.data, data.Length);
gameInfo.size = (uint)data.Length;
}
gameInfo.meta = "";
IntPtr gamePtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Native.retro_game_info)));
Marshal.StructureToPtr(gameInfo, gamePtr, false);
retro_load_game(gamePtr);
IntPtr infoPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Native.retro_system_av_info)));
retro_get_system_av_info(infoPtr);
Native.retro_system_av_info info = (Native.retro_system_av_info)Marshal.PtrToStructure(infoPtr, typeof(Native.retro_system_av_info));
HandleAVInfo(info, false);
if(gameInfo.data != IntPtr.Zero)
{
Marshal.FreeHGlobal(gameInfo.data);
}
gameLoaded = true;
}
