add Mappings for SaveState/LoadState/UndoState also

src/burner/burner.h

@@ -113,6 +113,12 @@ extern TCHAR szPlayerDefaultIni[4][MAX_PATH];
 // mappable System Macros for the Input Dialogue
 extern UINT8 macroSystemPause;
 extern UINT8 macroSystemFFWD;
+extern UINT8 macroSystemSaveState;
+extern UINT8 macroSystemLoadState;
+extern UINT8 macroSystemUNDOState;
+
+// scrn.cpp
+extern void scrnSSUndo();
 
 // cong.cpp
 extern const INT32 nConfigMinVersion;					// Minimum version of application for which input files are valid

src/burner/gami.cpp

@@ -21,6 +21,9 @@ bool bLeftAltkeyMapped = false;
 // These are mappable global macros for mapping Pause/FFWD etc to controls in the input mapping dialogue. -dink
 UINT8 macroSystemPause = 0;
 UINT8 macroSystemFFWD = 0;
+UINT8 macroSystemSaveState = 0;
+UINT8 macroSystemLoadState = 0;
+UINT8 macroSystemUNDOState = 0;
 
 // ---------------------------------------------------------------------------
 
@@ -268,6 +271,35 @@ static void GameInpInitMacros()
 			nMacroCount++;
 			pgi++;
 
+			pgi->nInput = GIT_MACRO_AUTO;
+			pgi->nType = BIT_DIGITAL;
+			pgi->Macro.nMode = 0;
+			pgi->Macro.nSysMacro = 1;
+			sprintf(pgi->Macro.szName, "System Load State");
+			pgi->Macro.pVal[0] = &macroSystemLoadState;
+			pgi->Macro.nVal[0] = 1;
+			nMacroCount++;
+			pgi++;
+
+			pgi->nInput = GIT_MACRO_AUTO;
+			pgi->nType = BIT_DIGITAL;
+			pgi->Macro.nMode = 0;
+			pgi->Macro.nSysMacro = 1;
+			sprintf(pgi->Macro.szName, "System Save State");
+			pgi->Macro.pVal[0] = &macroSystemSaveState;
+			pgi->Macro.nVal[0] = 1;
+			nMacroCount++;
+			pgi++;
+
+			pgi->nInput = GIT_MACRO_AUTO;
+			pgi->nType = BIT_DIGITAL;
+			pgi->Macro.nMode = 0;
+			pgi->Macro.nSysMacro = 1;
+			sprintf(pgi->Macro.szName, "System UNDO State");
+			pgi->Macro.pVal[0] = &macroSystemUNDOState;
+			pgi->Macro.nVal[0] = 1;
+			nMacroCount++;
+			pgi++;
 	}
 
 	for (INT32 nPlayer = 0; nPlayer < nMaxPlayers; nPlayer++) {

src/burner/win32/run.cpp

@@ -27,7 +27,7 @@ static int nNormalFrac = 0;					// Extra fraction we did
 static bool bAppDoStep = 0;
 static bool bAppDoFast = 0;
 static int nFastSpeed = 6;
-static int prevPause = 0;
+static int prevPause = 0, prevSState = 0, prevLState = 0, prevUState = 0;
 
 static void CheckSystemMacros() // These are the Pause / FFWD macros added to the input dialog
 {
@@ -38,6 +38,21 @@ static void CheckSystemMacros() // These are the Pause / FFWD macros added to th
 	prevPause = macroSystemPause;
 	// FFWD
 	if (!kNetGame) bAppDoFast = macroSystemFFWD;
+	// Load State
+	if (macroSystemLoadState && macroSystemLoadState != prevLState) {
+		PostMessage(hScrnWnd, WM_KEYDOWN, VK_F9, 0);
+	}
+	prevLState = macroSystemLoadState;
+	// Save State
+	if (macroSystemSaveState && macroSystemSaveState != prevSState) {
+		PostMessage(hScrnWnd, WM_KEYDOWN, VK_F10, 0);
+	}
+	prevSState = macroSystemSaveState;
+	// UNDO State
+	if (macroSystemUNDOState && macroSystemUNDOState != prevUState) {
+		scrnSSUndo();
+	}
+	prevUState = macroSystemUNDOState;
 }
 
 static int GetInput(bool bCopy)

src/burner/win32/scrn.cpp

@@ -772,6 +772,20 @@ int BurnerLoadDriver(TCHAR *szDriverName)
 	return 0;
 }
 
+void scrnSSUndo() // called from the menu (shift+F8) and CheckSystemMacros() in run.cpp
+{
+	if (bDrvOkay) {
+		TCHAR szString[256] = _T("state undo");
+		TCHAR szStringFailed[256] = _T("state: nothing to undo");
+		if (!StatedUNDO(nSavestateSlot)) {
+			VidSNewShortMsg(szString);
+		} else {
+			VidSNewShortMsg(szStringFailed);
+		}
+		PausedRedraw();
+	}
+}
+
 static void OnCommand(HWND /*hDlg*/, int id, HWND /*hwndCtl*/, UINT codeNotify)
 {
 	//if(id >= ID_MDI_START_CHILD) {
@@ -1088,16 +1102,7 @@ static void OnCommand(HWND /*hDlg*/, int id, HWND /*hwndCtl*/, UINT codeNotify)
 			break;
 		}
 		case MENU_STATE_UNDO:
-			if (bDrvOkay) {
-				TCHAR szString[256] = _T("state undo");
-				TCHAR szStringFailed[256] = _T("state: nothing to undo");
-				if (!StatedUNDO(nSavestateSlot)) {
-					VidSNewShortMsg(szString);
-				} else {
-					VidSNewShortMsg(szStringFailed);
-				}
-				PausedRedraw();
-			}
+			scrnSSUndo();
 			break;
 		case MENU_STATE_LOAD_SLOT:
 			if (bDrvOkay && !kNetGame) {