saturn: support input callback stuffs

BizHawk.Emulation.Cores/Consoles/Sega/Saturn/LibYabause.cs

@@ -73,6 +73,18 @@ namespace BizHawk.Emulation.Cores.Sega.Saturn
 		[DllImport("libyabause.dll", CallingConvention = CallingConvention.Cdecl)]
 		public static extern void libyabause_hardreset();
 
+
+		[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+		public delegate void InputCallback();
+
+		/// <summary>
+		/// set a fcn to call every time input is read
+		/// </summary>
+		/// <param name="cb">execxutes right before the input read.  null to clear</param>
+		[DllImport("libyabause.dll", CallingConvention = CallingConvention.Cdecl)]
+		public static extern void libyabause_setinputcallback(InputCallback cb);
+
+
 		/// <summary>
 		/// 
 		/// </summary>

BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Yabause.cs

@@ -39,6 +39,8 @@ namespace BizHawk.Emulation.Cores.Sega.Saturn
 		LibYabause.CDInterface.ReadSectorFAD ReadSectorFADH;
 		LibYabause.CDInterface.ReadAheadFAD ReadAheadFADH;
 
+		LibYabause.InputCallback InputCallbackH;
+
 		public Yabause(CoreComm CoreComm, DiscSystem.Disc CD, byte[] bios, bool GL = false)
 		{
 			CoreComm.RomStatusDetails = "Yeh";
@@ -46,6 +48,9 @@ namespace BizHawk.Emulation.Cores.Sega.Saturn
 			this.CD = CD;
 			ResetCounters();
 			Init(bios, GL);
+
+			InputCallbackH = new LibYabause.InputCallback(() => CoreComm.InputCallback.Call());
+			LibYabause.libyabause_setinputcallback(InputCallbackH);
 		}
 
 		void Init(byte[] bios, bool GL = false)

yabause/src/smpc.c

@@ -32,6 +32,8 @@
 #include "yabause.h"
 #include "movie.h"
 
+#include "yui.h"
+
 #ifdef _arch_dreamcast
 # include "dreamcast/localtime.h"
 #endif
@@ -362,6 +364,10 @@ static void SmpcINTBACKPeripheral(void) {
 
   if (SmpcInternalVars->port1.size == 0 && SmpcInternalVars->port2.size == 0)
   {
+	  /////
+	  if (inputcallback)
+		  inputcallback();
+
      // Request data from the Peripheral Interface
      port1 = &PORTDATA1;
      port2 = &PORTDATA2;

yabause/src/yui.h

@@ -52,6 +52,14 @@ int YuiSetVideoMode(int width, int height, int bpp, int fullscreen);
    up being moved to the Video Core. */
 void YuiSwapBuffers(void);
 
+
+
+extern void (*inputcallback)(void);
+
+
+
+
+
 //////////////////////////////////////////////////////////////////////////////
 // Helper functions(you can use these in your own port)
 //////////////////////////////////////////////////////////////////////////////