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.");
}
}
}
public void Dispose()
{
if (resampler != null)
{
resampler.Dispose();
resampler = null;
}
if (retro != null)
{
retro.Dispose();
retro = null;
}
}
public void Dispose()
{
if (resampler != null)
{
resampler.Dispose();
resampler = null;
}
if (retro != null)
{
retro.Dispose();
retro = null;
}
unmanagedResources.Dispose();
unmanagedResources = null;
}
public LibRetroEmulator(CoreComm nextComm, string modulename)
{
ServiceProvider = new BasicServiceProvider(this);
retro_environment_cb = new LibRetro.retro_environment_t(retro_environment);
retro_video_refresh_cb = new LibRetro.retro_video_refresh_t(retro_video_refresh);
retro_audio_sample_cb = new LibRetro.retro_audio_sample_t(retro_audio_sample);
retro_audio_sample_batch_cb = new LibRetro.retro_audio_sample_batch_t(retro_audio_sample_batch);
retro_input_poll_cb = new LibRetro.retro_input_poll_t(retro_input_poll);
retro_input_state_cb = new LibRetro.retro_input_state_t(retro_input_state);
retro = new LibRetro(modulename);
try
{
CoreComm = nextComm;
LibRetro.retro_system_info sys = new LibRetro.retro_system_info();
retro.retro_get_system_info(ref sys);
if (sys.need_fullpath)
{
throw new ArgumentException("This libretro core needs filepaths");
}
if (sys.block_extract)
{
throw new ArgumentException("This libretro needs non-blocked extract");
}
retro.retro_set_environment(retro_environment_cb);
retro.retro_init();
retro.retro_set_video_refresh(retro_video_refresh_cb);
retro.retro_set_audio_sample(retro_audio_sample_cb);
retro.retro_set_audio_sample_batch(retro_audio_sample_batch_cb);
retro.retro_set_input_poll(retro_input_poll_cb);
retro.retro_set_input_state(retro_input_state_cb);
}
catch
{
retro.Dispose();
throw;
}
}
public LibRetroEmulator(CoreComm nextComm, string modulename)
{
ServiceProvider = new BasicServiceProvider(this);
retro_environment_cb = new LibRetro.retro_environment_t(retro_environment);
retro_video_refresh_cb = new LibRetro.retro_video_refresh_t(retro_video_refresh);
retro_audio_sample_cb = new LibRetro.retro_audio_sample_t(retro_audio_sample);
retro_audio_sample_batch_cb = new LibRetro.retro_audio_sample_batch_t(retro_audio_sample_batch);
retro_input_poll_cb = new LibRetro.retro_input_poll_t(retro_input_poll);
retro_input_state_cb = new LibRetro.retro_input_state_t(retro_input_state);
retro = new LibRetro(modulename);
try
{
CoreComm = nextComm;
LibRetro.retro_system_info sys = new LibRetro.retro_system_info();
retro.retro_get_system_info(ref sys);
if (sys.need_fullpath)
throw new ArgumentException("This libretro core needs filepaths");
if (sys.block_extract)
throw new ArgumentException("This libretro needs non-blocked extract");
retro.retro_set_environment(retro_environment_cb);
retro.retro_init();
retro.retro_set_video_refresh(retro_video_refresh_cb);
retro.retro_set_audio_sample(retro_audio_sample_cb);
retro.retro_set_audio_sample_batch(retro_audio_sample_batch_cb);
retro.retro_set_input_poll(retro_input_poll_cb);
retro.retro_set_input_state(retro_input_state_cb);
}
catch
{
retro.Dispose();
throw;
}
}
public LibRetroEmulator(CoreComm nextComm, string modulename)
{
ServiceProvider = new BasicServiceProvider(this);
_SyncSettings = new SyncSettings();
retro_environment_cb = new LibRetro.retro_environment_t(retro_environment);
retro_video_refresh_cb = new LibRetro.retro_video_refresh_t(retro_video_refresh);
retro_audio_sample_cb = new LibRetro.retro_audio_sample_t(retro_audio_sample);
retro_audio_sample_batch_cb = new LibRetro.retro_audio_sample_batch_t(retro_audio_sample_batch);
retro_input_poll_cb = new LibRetro.retro_input_poll_t(retro_input_poll);
retro_input_state_cb = new LibRetro.retro_input_state_t(retro_input_state);
retro_log_printf_cb = new LibRetro.retro_log_printf_t(retro_log_printf);
//no way (need new mechanism) to check for SSSE3, MMXEXT, SSE4, SSE42
retro_perf_callback.get_cpu_features = new LibRetro.retro_get_cpu_features_t(() => (ulong)(
(Win32PInvokes.IsProcessorFeaturePresent(Win32PInvokes.ProcessorFeature.InstructionsXMMIAvailable) ? LibRetro.RETRO_SIMD.SSE : 0) |
(Win32PInvokes.IsProcessorFeaturePresent(Win32PInvokes.ProcessorFeature.InstructionsXMMI64Available) ? LibRetro.RETRO_SIMD.SSE2 : 0) |
(Win32PInvokes.IsProcessorFeaturePresent(Win32PInvokes.ProcessorFeature.InstructionsSSE3Available) ? LibRetro.RETRO_SIMD.SSE3 : 0) |
(Win32PInvokes.IsProcessorFeaturePresent(Win32PInvokes.ProcessorFeature.InstructionsMMXAvailable) ? LibRetro.RETRO_SIMD.MMX : 0)
));
retro_perf_callback.get_perf_counter = new LibRetro.retro_perf_get_counter_t(() => System.Diagnostics.Stopwatch.GetTimestamp());
retro_perf_callback.get_time_usec = new LibRetro.retro_perf_get_time_usec_t(() => DateTime.Now.Ticks / 10);
retro_perf_callback.perf_log = new LibRetro.retro_perf_log_t(() => {});
retro_perf_callback.perf_register = new LibRetro.retro_perf_register_t((ref LibRetro.retro_perf_counter counter) => { });
retro_perf_callback.perf_start = new LibRetro.retro_perf_start_t((ref LibRetro.retro_perf_counter counter) => { });
retro_perf_callback.perf_stop = new LibRetro.retro_perf_stop_t((ref LibRetro.retro_perf_counter counter) => { });
retro = new LibRetro(modulename);
try
{
CoreComm = nextComm;
//this series of steps may be mystical.
LibRetro.retro_system_info system_info = new LibRetro.retro_system_info();
retro.retro_get_system_info(ref system_info);
//the dosbox core calls GET_SYSTEM_DIRECTORY and GET_SAVE_DIRECTORY from retro_set_environment.
//so, lets set some temporary values (which we'll replace)
SystemDirectory = Path.GetDirectoryName(modulename);
SystemDirectoryAtom = unmanagedResources.StringToHGlobalAnsi(SystemDirectory);
SaveDirectory = Path.GetDirectoryName(modulename);
SaveDirectoryAtom = unmanagedResources.StringToHGlobalAnsi(SaveDirectory);
retro.retro_set_environment(retro_environment_cb);
retro.retro_set_video_refresh(retro_video_refresh_cb);
retro.retro_set_audio_sample(retro_audio_sample_cb);
retro.retro_set_audio_sample_batch(retro_audio_sample_batch_cb);
retro.retro_set_input_poll(retro_input_poll_cb);
retro.retro_set_input_state(retro_input_state_cb);
//compile descriptive information
Description.NeedsArchives = system_info.block_extract;
Description.NeedsRomAsPath = system_info.need_fullpath;
Description.LibraryName = system_info.library_name;
Description.LibraryVersion = system_info.library_version;
Description.ValidExtensions = system_info.valid_extensions;
Description.SupportsNoGame = environmentInfo.SupportNoGame;
}
catch
{
retro.Dispose();
retro = null;
throw;
}
}
bool retro_environment(LibRetro.RETRO_ENVIRONMENT cmd, IntPtr data)
{
switch (cmd)
{
case LibRetro.RETRO_ENVIRONMENT.SET_ROTATION:
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_OVERSCAN:
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_CAN_DUPE:
return true;
case LibRetro.RETRO_ENVIRONMENT.SET_MESSAGE:
{
LibRetro.retro_message msg = new LibRetro.retro_message();
Marshal.PtrToStructure(data, msg);
if (!string.IsNullOrEmpty(msg.msg))
Console.WriteLine("LibRetro Message: {0}", msg.msg);
return true;
}
case LibRetro.RETRO_ENVIRONMENT.SHUTDOWN:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_PERFORMANCE_LEVEL:
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_SYSTEM_DIRECTORY:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_PIXEL_FORMAT:
{
LibRetro.RETRO_PIXEL_FORMAT fmt = 0;
int[] tmp = new int[1];
Marshal.Copy(data, tmp, 0, 1);
fmt = (LibRetro.RETRO_PIXEL_FORMAT)tmp[0];
switch (fmt)
{
case LibRetro.RETRO_PIXEL_FORMAT.RGB565:
case LibRetro.RETRO_PIXEL_FORMAT.XRGB1555:
case LibRetro.RETRO_PIXEL_FORMAT.XRGB8888:
pixelfmt = fmt;
Console.WriteLine("New pixel format set: {0}", pixelfmt);
return true;
default:
Console.WriteLine("Unrecognized pixel format: {0}", (int)pixelfmt);
return false;
}
}
case LibRetro.RETRO_ENVIRONMENT.SET_INPUT_DESCRIPTORS:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_KEYBOARD_CALLBACK:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_DISK_CONTROL_INTERFACE:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_HW_RENDER:
// this can be done in principle, but there's no reason to right now
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_VARIABLE:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_VARIABLES:
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_VARIABLE_UPDATE:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_SUPPORT_NO_GAME:
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_LIBRETRO_PATH:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_AUDIO_CALLBACK:
return false;
case LibRetro.RETRO_ENVIRONMENT.SET_FRAME_TIME_CALLBACK:
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_RUMBLE_INTERFACE:
return false;
case LibRetro.RETRO_ENVIRONMENT.GET_INPUT_DEVICE_CAPABILITIES:
return false;
default:
Console.WriteLine("Unknkown retro_environment command {0}", (int)cmd);
return false;
}
}
public void Dispose()
{
if (resampler != null)
{
resampler.Dispose();
resampler = null;
}
if (retro != null)
{
retro.Dispose();
retro = null;
}
}