* fixed savestates filenaming bug when working with a movie

* updated docs

[[Split portion of a mixed commit.]]

changelog.txt

@@ -1,3 +1,4 @@
+30-Aug-2012 - AnS - fixed savestates filenaming bug when working with a movie
 29-Aug-2012 - AnS - added "Force Grayscale" checkbox to Palette config
 26-Aug-2012 - AnS - Taseditor: History Log highlights items related to current item
 25-Aug-2012 - AnS - Taseditor: fixed AdjustLag feature and changed fm3 version to v2

src/file.cpp

@@ -566,7 +566,7 @@ std::string FCEU_MakeFName(int type, int id1, const char *cd1)
 	char ret[FILENAME_MAX] = "";
 	struct stat tmpstat;
 	std::string mfnString;
-	const char* mfn;
+	const char* mfn;	// the movie filename
 
 	switch(type)
 	{
@@ -582,20 +582,22 @@ std::string FCEU_MakeFName(int type, int id1, const char *cd1)
 			break;
 		case FCEUMKF_STATE:
 			{
-				if (bindSavestate) mfnString = GetMfn();
-				else mfnString = "";
-				
-				if (mfnString.length() < 60)	//This caps the movie filename length before adding it to the savestate filename.  
-					mfn = mfnString.c_str();	//This helps prevent possible crashes from savestate filenames of excessive length.
-					
+				if (bindSavestate)
+					mfnString = GetMfn();
 				else
+					mfnString = "";
+				
+				if (mfnString.length() <= MAX_MOVIEFILENAME_LEN)
 				{
-					std::string mfnStringTemp = mfnString.substr(0,60);
-					mfn = mfnStringTemp.c_str();	//mfn is the movie filename
+					mfn = mfnString.c_str();	
+				} else
+				{
+					//This caps the movie filename length before adding it to the savestate filename.  
+					//This helps prevent possible crashes from savestate filenames of excessive length.
+					mfnString = mfnString.substr(0, MAX_MOVIEFILENAME_LEN);
+					mfn = mfnString.c_str();
 				}
 				
-				
-				
 				if(odirs[FCEUIOD_STATES])
 				{
 					sprintf(ret,"%s"PSS"%s%s.fc%d",odirs[FCEUIOD_STATES],FileBase,mfn,id1);

src/file.h

@@ -1,6 +1,8 @@
 #ifndef _FCEU_FILE_H_
 #define _FCEU_FILE_H_
 
+#define MAX_MOVIEFILENAME_LEN 80
+
 #include <string>
 #include <iostream>
 #include "types.h"