fix for file loading errors

source/fceultra/fceu.cpp

@@ -99,7 +99,7 @@ FCEUGI::~FCEUGI()
 	if(archiveFilename) delete archiveFilename;
 }
 
-static void CloseGame(void)
+static void FCEU_CloseGame(void)
 {
 	if(GameInfo)
 	{
@@ -360,7 +360,7 @@ static DECLFR(ARAMH)
 
 void ResetGameLoaded(void)
 {
-	if(GameInfo) CloseGame();
+	if(GameInfo) FCEU_CloseGame();
 	EmulationPaused = 0; //mbg 5/8/08 - loading games while paused was bad news. maybe this fixes it
 	GameStateRestore=0;
 	PPU_hook=0;
@@ -421,7 +421,7 @@ FCEUGI *FCEUI_LoadGameVirtual(const char *name, int OverwriteVidMode)
 	for (AutosaveIndex=0; AutosaveIndex<AutosaveQty; ++AutosaveIndex)
 		AutosaveStatus[AutosaveIndex] = 0;
 
-	CloseGame();
+	FCEU_CloseGame();
 	GameInfo = new FCEUGI();
 	memset(GameInfo, 0, sizeof(FCEUGI));
 
@@ -714,7 +714,7 @@ void FCEUI_CloseGame(void)
 	if(!FCEU_IsValidUI(FCEUI_CLOSEGAME))
 		return;
 
-	CloseGame();
+	FCEU_CloseGame();
 }
 
 void ResetNES(void)

source/fceultra/fds.cpp

@@ -776,9 +776,9 @@ int FDSLoad(const char *name, FCEUFILE *fp)
 	FILE *zp;
 	int x;
 	char *fn;
-#ifndef GEKKO
+
 	FCEU_fseek(fp,0,SEEK_SET);
-#endif
+
 	if(!SubLoad(fp)) 
 		return(0);
 

source/fceultra/file.cpp

@@ -424,8 +424,10 @@ int FCEU_fseek(FCEUFILE *fp, long offset, int whence)
 	//else
 	//	return fseek((FILE *)fp->fp,offset,whence);
 
-	fp->stream->seekg(offset,(std::ios_base::seekdir)whence);
-	fp->stream->seekp(offset,(std::ios_base::seekdir)whence);
+	if(fp->mode == FCEUFILE::READ || fp->mode == FCEUFILE::READWRITE)
+		fp->stream->seekg(offset,(std::ios_base::seekdir)whence);
+	if(fp->mode == FCEUFILE::WRITE || fp->mode == FCEUFILE::READWRITE)
+		fp->stream->seekp(offset,(std::ios_base::seekdir)whence);
 
 	return FCEU_ftell(fp);
 }

source/fceultra/nsf.cpp

@@ -167,9 +167,8 @@ static INLINE void BANKSET(uint32 A, uint32 bank)
 int NSFLoad(const char *name, FCEUFILE *fp)
 {
 	int x;
-#ifndef GEKKO
+
 	FCEU_fseek(fp,0,SEEK_SET);
-#endif
 	FCEU_fread(&NSFHeader,1,0x80,fp);
 	if(memcmp(NSFHeader.ID,"NESM\x1a",5))
 		return 0;

source/fceultra/types.h

@@ -117,6 +117,10 @@ typedef uint32_t uint32;
 #define PSS ":"
 #define PS ':'
 
+#else
+
+#error PSS_STYLE undefined or invalid; see "types.h" for possible values, and add as compile-time option.  
+
 #endif
 
 

source/fceultra/unif.cpp

@@ -556,9 +556,7 @@ static void UNIFGI(GI h)
 
 int UNIFLoad(const char *name, FCEUFILE *fp)
 {
-#ifndef GEKKO
 	FCEU_fseek(fp,0,SEEK_SET);
-#endif
 	FCEU_fread(&unhead,1,4,fp);
 	if(memcmp(&unhead,"UNIF",4))
 		return 0;        

source/fceultra/utils/memorystream.h

@@ -184,11 +184,7 @@ private:
 		if(!myBuf && !usevec)
 			throw new std::runtime_error("memory_streambuf is not expandable");
 
-		size_t newcapacity;
-		if(upto == 0)
-			newcapacity = capacity + capacity/2 + 2;
-		else
-			newcapacity = std::max(upto,capacity);
+		size_t newcapacity = std::max(upto,capacity);
 
 		if(newcapacity == capacity) return;
 

source/ngc/fceuload.cpp

@@ -17,6 +17,8 @@
 #include <string.h>
 #include <malloc.h>
 
+#include "file.h"
+
 #include "fceugx.h"
 #include "gcaudio.h"
 #include "fceusupport.h"
@@ -61,28 +63,19 @@ int GCMemROM(int size)
 	FCEUFILE * fceufp = new FCEUFILE();
 	fceufp->size = size;
 	fceufp->filename = romFilename;
-	memorystream * fceumem;
-
-	romLoaded = false;
-
-	// for some reason FCEU_fseek(fp,0,SEEK_SET); fails, so we will do this
-	fceumem = new memorystream((char *) nesrom, size);
+	fceufp->mode = FCEUFILE::READ; // read only
+	memorystream * fceumem = new memorystream((char *) nesrom, size);
 	fceufp->stream = fceumem;
+
 	romLoaded = iNESLoad(romFilename, fceufp, 1);
 
 	if(!romLoaded)
 	{
-		delete fceumem;
-		fceumem = new memorystream((char *) nesrom, size);
-		fceufp->stream = fceumem;
 		romLoaded = UNIFLoad(romFilename, fceufp);
 	}
 
 	if(!romLoaded)
 	{
-		delete fceumem;
-		fceumem = new memorystream((char *) nesrom, size);
-		fceufp->stream = fceumem;
 		romLoaded = NSFLoad(romFilename, fceufp);
 	}
 
@@ -118,11 +111,6 @@ int GCMemROM(int size)
 		}
 		if (FDSBIOS[1] != 0)
 		{
-			// load game
-			delete fceumem;
-			fceumem = new memorystream((char *) nesrom, size);
-			fceufp->stream = fceumem;
-
 			romLoaded = FDSLoad(romFilename, fceufp);
 		}
 	}