Backup savestate is created before a state is loaded

changelog.txt

@@ -1,4 +1,5 @@
 ---version 2.0.4 yet to be released---
+19-dec-2008 - adelikat - Backup savestate is made before loading a state
 18-dec-2008 - adelikat - win32 - turbo bypasses sound better if muteturbo is checked
 18-dec-2008 - shinydoofy - sdl - fixed compiling errors for SDL due to r1037
 18-dec-2008 - adelikat - win32 - fullscreen mode fixed (both enters and returns to fullscreen just fine)

src/drivers/win/state.cpp

@@ -55,5 +55,4 @@ void FCEUD_LoadStateFrom()
 		// Load save state if a file was selected.
 		FCEUI_LoadState(nameo);
 	}
-}
-
+}

src/state.cpp

@@ -48,6 +48,8 @@
 #include "zlib.h"
 #include "driver.h"
 
+using namespace std;
+
 static void (*SPreSave)(void);
 static void (*SPostSave)(void);
 
@@ -795,6 +797,7 @@ void FCEUI_LoadState(const char *fname)
 	information expected in newer save states, desynchronization won't occur(at least not
 	from this ;)).
 	*/
+	BackupSaveState();
 
 	if(FCEUSS_Load(fname))
 	{
@@ -836,3 +839,15 @@ void FCEU_DrawSaveStates(uint8 *XBuf)
 	StateShow--;
 }
 
+void BackupSaveState()
+{
+	//Everytime a load state is loaded, this is run prior so that the user has a backup of the previous emulator state
+	string filename;
+	int x;
+	
+	filename = strdup(FCEU_MakeFName(FCEUMKF_STATE,CurrentState,0).c_str());	//Generate normal savestate filename
+	x = filename.find_last_of(".");		//Find last dot
+	filename = filename.substr(0,x);	//Chop off file extension
+	filename.append(".bak");			//add .bak
+}
+

src/state.h

@@ -61,3 +61,4 @@ void AddExState(void *v, uint32 s, int type, char *desc);
 
 void FCEU_DrawSaveStates(uint8 *XBuf);
 
+void BackupSaveState();				//Makes a backupsavestate