bool LoadWork(ref LibRetro.retro_game_info gi)
{
//defer this until loading because during the LibRetroEmulator constructor, we dont have access to the game name and so paths can't be selected
//this cannot be done until set_environment is complete
if (CoreComm.CoreFileProvider == null)
{
SaveDirectory = SystemDirectory = "";
}
else
{
SystemDirectory = CoreComm.CoreFileProvider.GetRetroSystemPath();
SaveDirectory = CoreComm.CoreFileProvider.GetRetroSaveRAMDirectory();
SystemDirectoryAtom = unmanagedResources.StringToHGlobalAnsi(SystemDirectory);
SaveDirectoryAtom = unmanagedResources.StringToHGlobalAnsi(SaveDirectory);
}
//defer this until loading because it triggers the core to read save and system paths
//if any cores did that from set_environment then i'm assured we can call set_environment again here before retro_init and it should work
//--alcaro says any cores that can't handle that should be considered a bug
//UPDATE: dosbox does that, so lets try it
retro.retro_set_environment(retro_environment_cb);
retro.retro_init();
if (!retro.retro_load_game(ref gi))
{
Console.WriteLine("retro_load_game() failed");
return(false);
}
//TODO - libretro cores can return a varying serialize size over time. I tried to get them to write it in the docs...
savebuff = new byte[retro.retro_serialize_size()];
savebuff2 = new byte[savebuff.Length + 13];
LibRetro.retro_system_av_info av = new LibRetro.retro_system_av_info();
retro.retro_get_system_av_info(ref av);
BufferWidth = (int)av.geometry.base_width;
BufferHeight = (int)av.geometry.base_height;
vidbuff = new int[av.geometry.max_width * av.geometry.max_height];
dar = av.geometry.aspect_ratio;
// TODO: more precise
CoreComm.VsyncNum = (int)(10000000 * av.timing.fps);
CoreComm.VsyncDen = 10000000;
SetupResampler(av.timing.fps, av.timing.sample_rate);
(ServiceProvider as BasicServiceProvider).Register <ISoundProvider>(resampler);
ControllerDefinition = CreateControllerDefinition(_SyncSettings);
return(true);
}
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;
}
}