public LibretroApi(string dllPath, string corePath)
{
InstanceName = "libretro_" + Guid.NewGuid().ToString();
var pipeName = InstanceName;
instanceDll = new InstanceDll(dllPath);
instanceDllCore = new InstanceDll(corePath);
var dllinit = (DllInit)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("DllInit"), typeof(DllInit));
Message = (MessageApi)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("Message"), typeof(MessageApi));
_copyBuffer = (BufferApi)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("CopyBuffer"), typeof(BufferApi));
_setBuffer = (BufferApi)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("SetBuffer"), typeof(BufferApi));
SetVariable = (SetVariableApi)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("SetVariable"), typeof(SetVariableApi));
comm = (CommStruct *)dllinit(instanceDllCore.HModule).ToPointer();
//TODO: (stash function pointers locally and thunk to IntPtr)
//ALSO: this should be done by the core, I think, not the API. No smarts should be in here
comm->env.retro_perf_callback.get_cpu_features = IntPtr.Zero;
//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) => { });
}
BufferApi _setBuffer; //TODO: consider making private and wrapping
public LibsnesApi(string dllPath)
{
InstanceName = "libsneshawk_" + Guid.NewGuid().ToString();
instanceDll = new InstanceDll(dllPath);
var dllinit = (DllInit)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("DllInit"), typeof(DllInit));
Message = (MessageApi)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("Message"), typeof(MessageApi));
_copyBuffer = (BufferApi)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("CopyBuffer"), typeof(BufferApi));
_setBuffer = (BufferApi)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("SetBuffer"), typeof(BufferApi));
comm = (CommStruct *)dllinit().ToPointer();
}
public LibsnesApi(string dllPath)
{
InstanceName = "libsneshawk_" + Guid.NewGuid().ToString();
var pipeName = InstanceName;
mmf = MemoryMappedFile.CreateNew(pipeName, 1024 * 1024);
mmva = mmf.CreateViewAccessor();
mmva.SafeMemoryMappedViewHandle.AcquirePointer(ref mmvaPtr);
pipe = new NamedPipeServerStream(pipeName, PipeDirection.InOut, 1, PipeTransmissionMode.Byte, PipeOptions.None, 1024 * 1024, 1024);
instanceDll = new InstanceDll(dllPath);
var dllinit = (DllInit)Marshal.GetDelegateForFunctionPointer(instanceDll.GetProcAddress("DllInit"), typeof(DllInit));
dllinit(pipeName);
//TODO - start a thread to wait for process to exit and gracefully handle errors? how about the pipe?
pipe.WaitForConnection();
rbuf = new IPCRingBuffer();
wbuf = new IPCRingBuffer();
rbuf.Allocate(1024);
wbuf.Allocate(1024);
rbufstr = new IPCRingBufferStream(rbuf);
wbufstr = new IPCRingBufferStream(wbuf);
rstream = new SwitcherStream();
wstream = new SwitcherStream();
rstream.SetCurrStream(pipe);
wstream.SetCurrStream(pipe);
brPipe = new BinaryReader(rstream);
bwPipe = new BinaryWriter(wstream);
WritePipeMessage(eMessage.eMessage_SetBuffer);
bwPipe.Write(1);
WritePipeString(rbuf.Id);
WritePipeMessage(eMessage.eMessage_SetBuffer);
bwPipe.Write(0);
WritePipeString(wbuf.Id);
bwPipe.Flush();
}
private bool ConnectAllEntryPoints()
{
bool succeed = true;
foreach (var field in GetAllEntryPoints())
{
string fieldname = field.Name;
IntPtr entry = dll.GetProcAddress(fieldname);
if (entry != IntPtr.Zero)
{
field.SetValue(this, Marshal.GetDelegateForFunctionPointer(entry, field.FieldType));
}
else
{
Console.WriteLine("Couldn't bind libretro entry point {0}", fieldname);
succeed = false;
}
}
return(succeed);
}