public LibRetro(string modulename)
{
// like many other emu cores, libretros are in general single instance, so we track some things
lock (AttachedCores)
{
IntPtr newmodule = Win32.LoadLibrary(modulename);
if (newmodule == IntPtr.Zero)
{
throw new Exception(string.Format("LoadLibrary(\"{0}\") returned NULL", modulename));
}
if (AttachedCores.ContainsKey(newmodule))
{
// this core is already loaded, so we must detatch the old instance
LibRetro martyr = AttachedCores[newmodule];
martyr.retro_deinit();
martyr.ClearAllEntryPoints();
martyr.hModule = IntPtr.Zero;
Win32.FreeLibrary(newmodule); // decrease ref count by 1
}
AttachedCores[newmodule] = this;
hModule = newmodule;
if (!ConnectAllEntryPoints())
{
ClearAllEntryPoints();
Win32.FreeLibrary(hModule);
hModule = IntPtr.Zero;
throw new Exception("ConnectAllEntryPoints() failed. The console may contain more details.");
}
}
}