Added support for gzipped roms. save states and srm files are also automatically compressed. For the moment, this is only available in the linux version, and you must enable it by defining __GZIP__

zsnes/src/cfgload.asm

@@ -28,7 +28,11 @@ EXTSYM newengen,per2exec,pl1Ak,pl1Bk,pl1Lk,pl1Rk,pl1Xk,pl1Yk
 EXTSYM pl1contrl,pl1downk,pl1leftk,pl1rightk,scanlines,soundon
 EXTSYM spcon,vsyncon,Open_File,Read_File
 EXTSYM Create_File,Write_File,Close_File
-
+%ifdef __LINUX__
+; if TextFile==0, zlib functions aren't used
+; useful to save the config file
+EXTSYM TextFile
+%endif
 
 NEWSYM CfgLoadAsmStart
 
@@ -272,6 +276,9 @@ NEWSYM DOScreatenewcfg
     push ecx
     ; Save .CFG file
     mov edx,CMDLineStr
+%ifdef _GZIP__
+    mov byte[TextFile], 1
+%endif
     call Create_File
     pop ecx
     jc .failed
@@ -280,6 +287,9 @@ NEWSYM DOScreatenewcfg
     mov edx,mode7tab
     call Write_File
     call Close_File
+%ifdef __GZIP__
+    mov byte[TextFile], 0
+%endif
 .failed
     ret
 

zsnes/src/gui/guiload.inc

@@ -566,6 +566,9 @@ GetNormalEntries2:
     GUIGetEntry2 GUIsfcfind
     GUIGetEntry2 GUIswcfind
     GUIGetEntry2 GUIfigfind
+%ifdef __GZIP__
+    GUIGetEntry2 GUIfindGZIP
+%endif
     GUIGetEntry2 GUIfind058
     GUIGetEntry2 GUIfind078
     GUIGetEntry2 GUIfindUSA
@@ -589,6 +592,9 @@ GetNormalEntries:
     GUIGetEntry GUIsfcfind
     GUIGetEntry GUIswcfind
     GUIGetEntry GUIfigfind
+%ifdef __GZIP__
+    GUIGetEntry GUIfindGZIP
+%endif
     GUIGetEntry GUIfind058
     GUIGetEntry GUIfind078
     GUIGetEntry GUIfindUSA
@@ -750,6 +756,9 @@ GetLoadLfn:
     GUIGetEntryLFN GUIsfcfind
     GUIGetEntryLFN GUIswcfind
     GUIGetEntryLFN GUIfigfind
+%ifdef __GZIP__
+    GUIGetEntryLFN GUIfindGZIP
+%endif
     GUIGetEntryLFN GUIfind058
     GUIGetEntryLFN GUIfind078
     GUIGetEntryLFN GUIfindUSA

zsnes/src/linux/zfilew.c

@@ -17,6 +17,11 @@
 
 
 #include <stdio.h>
+
+#ifdef __GZIP__
+#include <zlib.h>
+#endif
+
 #ifdef __LINUX__
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -37,7 +42,13 @@
 #define STUB_FUNCTION fprintf(stderr,"STUB: %s at " __FILE__ ", line %d, thread %d\n",__FUNCTION__,__LINE__,getpid())
 #endif
 #include <errno.h>
+
+#ifdef __GZIP__
+gzFile *FILEHANDLE[16];
+#else
 FILE *FILEHANDLE[16];
+#endif
+
 DWORD CurrentHandle=0;
 
 
@@ -86,7 +97,7 @@ DWORD ZFTime;
 BYTE * MKPath;
 BYTE * CHPath;
 BYTE * RMPath;
-
+BYTE TextFile;
 // GetDir
 BYTE * DirName;
 DWORD DriveNumber;
@@ -97,6 +108,11 @@ BYTE * ZFileDelFName;
 
 DWORD ZFileSystemInit()
 {
+#ifdef __GZIP__
+	TextFile = 0;
+#else
+	TextFile = 1;
+#endif
 	CurrentHandle=0;
 	return(0);
 }
@@ -105,7 +121,11 @@ DWORD ZOpenFile()
 {
 	if(ZOpenMode==0)
 	{
-      if((FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"rb"))!=NULL)
+		if (TextFile) 
+			FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"rb");
+		else
+			FILEHANDLE[CurrentHandle]=gzopen(ZOpenFileName,"rb");
+		if(FILEHANDLE[CurrentHandle]!=NULL)
 		{
 			CurrentHandle+=1;
 			return(CurrentHandle-1);
@@ -114,7 +134,11 @@ DWORD ZOpenFile()
 	}
 	if(ZOpenMode==1)
 	{
-      if((FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"wb"))!=NULL)
+		if (TextFile) 
+			FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"wb");
+		else
+			FILEHANDLE[CurrentHandle]=gzopen(ZOpenFileName,"wb");
+		if(FILEHANDLE[CurrentHandle]!=NULL)	       
 		{
 			CurrentHandle+=1;
 			return(CurrentHandle-1);
@@ -123,7 +147,11 @@ DWORD ZOpenFile()
 	}
 	if(ZOpenMode==2)
 	{
-      if((FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"r+b"))!=NULL)
+		if (TextFile) 
+			FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"r+b");
+		else
+			FILEHANDLE[CurrentHandle]=gzopen(ZOpenFileName,"r+b");
+		if(FILEHANDLE[CurrentHandle]!=NULL)	       
 		{
 			CurrentHandle+=1;
 			return(CurrentHandle-1);
@@ -135,41 +163,77 @@ DWORD ZOpenFile()
 
 DWORD ZCloseFile()
 {
+	if (TextFile)
 		fclose(FILEHANDLE[ZCloseFileHandle]);
+	else
+		gzclose(FILEHANDLE[ZCloseFileHandle]);
 	CurrentHandle-=1;
 	return(0);
 }
 
 DWORD ZFileSeek()
 {
+	int res = 0;
+	int mode = 0;
 	if (ZFileSeekMode==0)
-   {
-      fseek(FILEHANDLE[ZFileSeekHandle],ZFileSeekPos,SEEK_SET);
-      return(0);
-   }
-   if(ZFileSeekMode==1)
-   {
-      fseek(FILEHANDLE[ZFileSeekHandle],ZFileSeekPos,SEEK_END);
-      return(0);
+		mode = SEEK_SET;
+	else if (ZFileSeekMode==1) {
+		mode = SEEK_END;
+		if (TextFile==0) 
+			printf("Warning : gzseek(SEEK_END) not supported");
+	} else return (0xFFFFFFFF);
+
+	if (TextFile) {
+		fseek(FILEHANDLE[ZFileSeekHandle], ZFileSeekPos, mode);
+		return 0;
+	} else {
+		gzseek(FILEHANDLE[ZFileSeekHandle], ZFileSeekPos, mode);
+		return 0;
 	}
 	return(0xFFFFFFFF);
 }
 
 DWORD ZFileRead()
 {
-   return(fread(ZFileReadBlock,1,ZFileReadSize,FILEHANDLE[ZFileReadHandle]));
+	if (TextFile)
+		return(fread(ZFileReadBlock,
+			     1,
+			     ZFileReadSize,
+			     FILEHANDLE[ZFileReadHandle]));
+	else
+		return(gzread(FILEHANDLE[ZFileReadHandle], 
+			      ZFileReadBlock, 
+			      ZFileReadSize));
 }
 
 
 DWORD ZFileWrite()
 {
-   if((fwrite(ZFileWriteBlock,1,ZFileWriteSize,FILEHANDLE[ZFileWriteHandle]))!=ZFileWriteSize) return(0xFFFFFFFF);
+	int res=0;
+	if (TextFile)
+		res = fwrite(ZFileWriteBlock,
+			     1,
+			     ZFileWriteSize,
+			     FILEHANDLE[ZFileWriteHandle]);
+	else
+		res = gzwrite(FILEHANDLE[ZFileWriteHandle], 
+			      ZFileWriteBlock, 
+			      ZFileWriteSize);
+		
+	if (res!=ZFileWriteSize) 
+		return(0xFFFFFFFF);
+
 	return(0);
 }
 
 DWORD ZFileTell()
 {
-   return(ftell(FILEHANDLE[ZFileTellHandle]));
+	int res = 0;
+	if (TextFile) {
+		res = gztell(FILEHANDLE[ZFileTellHandle]);
+		if (res == -1) fprintf(stderr, "Oups!! gzTell\n");
+		return(res);
+	} else return gztell(FILEHANDLE[ZFileTellHandle]);
 }
 
 DWORD ZFileDelete()