made savestate compression togglable. Win32 - enable a menu item to toggle savestate compression. For SDL to have a similar feature it simply needs to toggle the variable bool compressSavestates in the core state.cpp.

src/drivers/win/config.cpp

@@ -299,6 +299,7 @@ static CFGSTRUCT fceuconfig[] = {
 	AC(ramw_y),
 
 	AC(backupSavestates),
+	AC(compressSavestates),
 
 	ENDCFGSTRUCT
 };

src/drivers/win/res.rc

@@ -111,6 +111,7 @@ BEGIN
             MENUITEM "&Auto-savestates",            MENU_ENABLE_AUTOSAVE
             MENUITEM "&Frame Adv. - Skip Lag",      MENU_DISPLAY_FA_LAGSKIP
             MENUITEM "Backup Savestates",           ID_ENABLE_BACKUPSAVESTATES
+            MENUITEM "Compress Savestates",         ID_ENABLE_COMPRESSSAVESTATES
         END
         POPUP "&Display"
         BEGIN

src/drivers/win/resource.h

@@ -767,6 +767,7 @@
 #define RW_MENU_FIRST_RECENT_FILE       40380
 #define RW_MENU_LAST_RECENT_FILE        40400
 #define ID_ENABLE_BACKUPSAVESTATES      40401
+#define ID_ENABLE_COMPRESSSAVESTATES    40402
 #define IDC_DEBUGGER_ICONTRAY           55535
 #define MW_ValueLabel2                  65423
 #define MW_ValueLabel1                  65426
@@ -776,7 +777,7 @@
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NEXT_RESOURCE_VALUE        160
-#define _APS_NEXT_COMMAND_VALUE         40402
+#define _APS_NEXT_COMMAND_VALUE         40403
 #define _APS_NEXT_CONTROL_VALUE         1256
 #define _APS_NEXT_SYMED_VALUE           101
 #endif

src/drivers/win/window.cpp

@@ -387,6 +387,7 @@ void UpdateCheckedMenuItems()
 	CheckMenuItem(fceumenu, MENU_DISPLAY_FA_LAGSKIP, frameAdvanceLagSkip?MF_CHECKED : MF_UNCHECKED);
 	CheckMenuItem(fceumenu, MENU_CONFIG_BINDSAVES, bindSavestate?MF_CHECKED : MF_UNCHECKED);
 	CheckMenuItem(fceumenu, ID_ENABLE_BACKUPSAVESTATES, backupSavestates?MF_CHECKED : MF_UNCHECKED);
+	CheckMenuItem(fceumenu, ID_ENABLE_COMPRESSSAVESTATES, compressSavestates?MF_CHECKED : MF_UNCHECKED);
 
 	//Config - Display SubMenu
 	CheckMenuItem(fceumenu, MENU_DISPLAY_LAGCOUNTER, lagCounterDisplay?MF_CHECKED : MF_UNCHECKED);
@@ -1621,6 +1622,10 @@ LRESULT FAR PASCAL AppWndProc(HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam)
 				backupSavestates ^=1;
 				UpdateCheckedMenuItems();
 				break;
+			case ID_ENABLE_COMPRESSSAVESTATES:
+				compressSavestates ^=1;
+				UpdateCheckedMenuItems();
+				break;
 			
 			//Display submenu
 			case MENU_INPUTDISPLAY_0: //Input display off

src/state.cpp

@@ -81,6 +81,7 @@ bool redoLS = false;		  //This will be true if a backupstate was loaded, meaning
 bool internalSaveLoad = false;
 
 bool backupSavestates = true;
+bool compressSavestates = true;  //By default FCEUX compresses savestates when a movie is inactive.
 
 #define SFMDATA_SIZE (64)
 static SFORMAT SFMDATA[SFMDATA_SIZE];
@@ -416,7 +417,7 @@ bool FCEUSS_SaveMS(std::ostream* outstream, int compressionLevel)
 	int error = Z_OK;
 	uint8* cbuf = (uint8*)ms.buf();
 	uLongf comprlen = -1;
-	if(compressionLevel != Z_NO_COMPRESSION)
+	if(compressionLevel != Z_NO_COMPRESSION && compressSavestates)
 	{
 		//worst case compression.
 		//zlib says "0.1% larger than sourceLen plus 12 bytes"

src/state.h

@@ -75,3 +75,5 @@ extern bool undoLS;					 //undo loadstate flag
 extern bool redoLS;					 //redo savestate flag
 extern bool backupSavestates;		 //Whether or not to make backups, true by default
 bool CheckBackupSaveStateExist();	 //Checks if backupsavestate exists
+
+extern bool compressSavestates;		//Whether or not to compress non-movie savestates (by default, yes)