fix a rather nasty mem leak with savebuffer

source/ngc/cheatmgr.cpp

@@ -18,7 +18,6 @@
 #include "menudraw.h"
 
 extern SCheatData Cheat;
-extern unsigned char savebuffer[];
 
 /****************************************************************************
  * NGCLoadCheatFile

source/ngc/dvd.cpp

@@ -17,21 +17,15 @@
 #include <string.h>
 
 #ifdef WII_DVD
-#ifdef __cplusplus
 extern "C" {
 #include <di/di.h>
 }
 #endif
-#endif
 
 #include "menudraw.h"
 #include "snes9xGX.h"
 #include "unzip.h"
 
-extern int offset;
-extern int selection;
-extern FILEENTRIES filelist[MAXFILES];
-extern int maxfiles;
 u64 dvddir = 0;
 u64 dvdrootdir = 0;
 int dvddirlength = 0;

source/ngc/fileop.cpp

@@ -29,13 +29,6 @@
 
 FILE * filehandle;
 
-extern unsigned char savebuffer[];
-extern char output[16384];
-extern int offset;
-extern int selection;
-extern char currentdir[MAXPATHLEN];
-extern FILEENTRIES filelist[MAXFILES];
-
 /****************************************************************************
  * fat_is_mounted
  * to check whether FAT media are detected.

source/ngc/filesel.cpp

@@ -18,6 +18,7 @@
 #include <string.h>
 #include <wiiuse/wpad.h>
 #include <sys/dir.h>
+#include <malloc.h>
 
 #ifdef WII_DVD
 extern "C" {
@@ -33,7 +34,6 @@ extern "C" {
 #include "menudraw.h"
 #include "video.h"
 #include "aram.h"
-#include "filesel.h"
 #include "smbop.h"
 #include "fileop.h"
 #include "memcardop.h"
@@ -55,15 +55,19 @@ int hasloaded = 0;
 // Global file entry table
 FILEENTRIES filelist[MAXFILES];
 
-unsigned char savebuffer[SAVEBUFFERSIZE] ATTRIBUTE_ALIGN (32);
+unsigned char *savebuffer = NULL;
 
 /****************************************************************************
  * ClearSaveBuffer ()
- * Clear the savebuffer
+ * Allocate and clear the savebuffer
  ***************************************************************************/
 void
 ClearSaveBuffer ()
 {
+	if (savebuffer)
+		free(savebuffer);
+
+	savebuffer = (unsigned char *) memalign(32, SAVEBUFFERSIZE);
 	memset (savebuffer, 0, SAVEBUFFERSIZE);
 }
 

source/ngc/filesel.h

@@ -14,7 +14,9 @@
 #ifndef _NGCFILESEL_
 #define _NGCFILESEL_
 
-#define SAVEBUFFERSIZE ((512 * 1024) + 2048 + 64 + 4 + 4)
+#include <unistd.h>
+
+#define SAVEBUFFERSIZE (512 * 1024)
 #define MAXJOLIET 255
 #define MAXDISPLAY 54
 
@@ -29,6 +31,11 @@ typedef struct
 
 #define MAXFILES 2000 // Restrict to 2000 files per dir
 extern FILEENTRIES filelist[MAXFILES];
+extern unsigned char *savebuffer;
+extern int offset;
+extern int selection;
+extern char currentdir[MAXPATHLEN];
+extern int maxfiles;
 
 void ClearSaveBuffer ();
 int OpenROM (int method);

source/ngc/freeze.cpp

@@ -40,7 +40,6 @@
 extern void S9xSRTCPreSaveState ();
 extern void NGCFreezeStruct ();
 extern bool8 S9xUnfreezeGame (const char *filename);
-extern unsigned char savebuffer[];
 
 static int bufoffset;
 

source/ngc/memcardop.cpp

@@ -17,18 +17,6 @@
 #include <string.h>
 #include <unistd.h>
 
-#include "snes9x.h"
-#include "memmap.h"
-#include "debug.h"
-#include "cpuexec.h"
-#include "ppu.h"
-#include "apu.h"
-#include "display.h"
-#include "gfx.h"
-#include "soundux.h"
-#include "spc700.h"
-#include "spc7110.h"
-
 #include "snes9xGX.h"
 #include "video.h"
 #include "menudraw.h"
@@ -39,10 +27,10 @@
 #include "preferences.h"
 #include "memcardop.h"
 #include "fileop.h"
+#include "filesel.h"
 
 #define VERIFBUFFERSIZE 65536
 static u8 SysArea[CARD_WORKAREA] ATTRIBUTE_ALIGN (32);
-extern unsigned char savebuffer[];
 unsigned char verifbuffer[VERIFBUFFERSIZE] ATTRIBUTE_ALIGN (32);
 card_dir CardDir;
 card_file CardFile;

source/ngc/preferences.cpp

@@ -26,7 +26,6 @@
 #include "smbop.h"
 #include "filesel.h"
 
-extern unsigned char savebuffer[];
 extern int currconfig[4];
 
 // button map configurations
@@ -120,7 +119,7 @@ int
 preparePrefsData (int method)
 {
 	int offset = 0;
-	memset (savebuffer, 0, SAVEBUFFERSIZE);
+	ClearSaveBuffer ();
 
 	// add save icon and comments for Memory Card saves
 	if(method == METHOD_MC_SLOTA || method == METHOD_MC_SLOTB)

source/ngc/smbop.cpp

@@ -35,14 +35,6 @@ unsigned int SMBTimer = 0;
 SMBCONN smbconn;
 #define ZIPCHUNK 16384
 
-extern unsigned char savebuffer[];
-extern char output[16384];
-extern int offset;
-extern int selection;
-extern char currentdir[MAXPATHLEN];
-extern FILEENTRIES filelist[MAXFILES];
-
-
 /****************************************************************************
  * InitializeNetwork
  * Initializes the Wii/GameCube network interface
@@ -281,7 +273,6 @@ SaveBufferToSMB (char *filepath, int datasize, bool8 silent)
 		WaitPrompt (msg);
 	}
 
-	ClearSaveBuffer ();
 	return boffset;
 }
 

source/ngc/sram.cpp

@@ -27,7 +27,6 @@
 #include "smbop.h"
 #include "filesel.h"
 
-extern unsigned char savebuffer[];
 extern int padcal;
 extern unsigned short gcpadmap[];