From 0a40d9f9c644efc84a621b1696faf7934455a70b Mon Sep 17 00:00:00 2001
From: dborth <dborth@0aaa047c-bd49-0410-9b25-49477284f1fd>
Date: Wed, 29 Jul 2009 06:33:17 +0000
Subject: [PATCH] add game genie support, FDS BIOS and game genie ROM are set
 to load from fceugx/disksys.rom and fceugx/gg.rom

---
 source/fceultra/cart.cpp   |  8 +++++--
 source/fceultra/fceu.cpp   |  4 ++++
 source/ngc/cheatmgr.cpp    | 49 ++++++++++++++++++++++++++++++++++++++
 source/ngc/cheatmgr.h      |  1 +
 source/ngc/fceugx.cpp      |  2 +-
 source/ngc/fceugx.h        |  1 +
 source/ngc/fceuload.cpp    |  6 ++---
 source/ngc/fceusupport.h   |  1 +
 source/ngc/filebrowser.cpp |  6 ++++-
 9 files changed, 71 insertions(+), 7 deletions(-)

diff --git a/source/fceultra/cart.cpp b/source/fceultra/cart.cpp
index 1a0f254..17da47e 100644
--- a/source/fceultra/cart.cpp
+++ b/source/fceultra/cart.cpp
@@ -293,7 +293,7 @@ void setchr8r(int r, unsigned int V)
 	if(CHRram[r])
 		PPUCHRRAM|=(255);
 	else
-		PPUCHRRAM=0; 
+		PPUCHRRAM=0;
 }
 
 void setchr1(unsigned int A, unsigned int V)
@@ -429,11 +429,15 @@ void SetupCartMirroring(int m, int hard, uint8 *extra)
 	mirrorhard=hard;
 }
 
+#ifdef GEKKO
+uint8 *GENIEROM=0;
+#else
 static uint8 *GENIEROM=0;
+#endif
 
 void FixGenieMap(void);
 
-// Called when a game(file) is opened successfully. 
+// Called when a game(file) is opened successfully.
 void OpenGenie(void)
 {
 	FILE *fp;
diff --git a/source/fceultra/fceu.cpp b/source/fceultra/fceu.cpp
index 75d6cb7..008ea7d 100644
--- a/source/fceultra/fceu.cpp
+++ b/source/fceultra/fceu.cpp
@@ -110,7 +110,11 @@ static void CloseGame(void)
 
 		if(GameInfo->type!=GIT_NSF)
 		{
+			#ifdef GEKKO
+			FCEU_FlushGameCheats(0,1); // don't save cheats
+			#else
 			FCEU_FlushGameCheats(0,0);
+			#endif
 		}
 
 		GameInterface(GI_CLOSE);
diff --git a/source/ngc/cheatmgr.cpp b/source/ngc/cheatmgr.cpp
index 684e696..cc2016e 100644
--- a/source/ngc/cheatmgr.cpp
+++ b/source/ngc/cheatmgr.cpp
@@ -9,6 +9,8 @@
  * Cheat handling
  ***************************************************************************/
 
+#include <malloc.h>
+
 #include "fceugx.h"
 #include "fceusupport.h"
 #include "fileop.h"
@@ -143,3 +145,50 @@ SetupCheats()
 
 	FreeSaveBuffer ();
 }
+
+void OpenGameGenie()
+{
+	if (GENIEROM) // already loaded
+	{
+		geniestage=1;
+		return;
+	}
+
+	int romSize = 0;
+	char * tmpbuffer = (char *) memalign(32, 512 * 1024);
+	if(!tmpbuffer)
+		return;
+	char filepath[1024];
+
+	if (MakeFilePath(filepath, FILE_GGROM, GCSettings.LoadMethod))
+	{
+		romSize = LoadFile(tmpbuffer, filepath, 0, GCSettings.LoadMethod, SILENT);
+	}
+
+	if (romSize > 0)
+	{
+		GENIEROM=(uint8 *)malloc(4096+1024);
+
+		if(tmpbuffer[0]==0x4E)  /* iNES ROM image */
+		{
+			memcpy(GENIEROM,tmpbuffer+16,4096);
+			memcpy(GENIEROM+4096,tmpbuffer+16400,256);
+		}
+		else
+		{
+			memcpy(GENIEROM,tmpbuffer,4352);
+		}
+
+		/* Workaround for the FCE Ultra CHR page size only being 1KB */
+		for(int x=0; x<4; x++)
+			memcpy(GENIEROM+4096+(x<<8),GENIEROM+4096,256);
+
+		geniestage=1;
+	}
+	else
+	{
+		free(GENIEROM);
+		GENIEROM=0;
+	}
+	free(tmpbuffer);
+}
diff --git a/source/ngc/cheatmgr.h b/source/ngc/cheatmgr.h
index d9ce05b..9dd3cf7 100644
--- a/source/ngc/cheatmgr.h
+++ b/source/ngc/cheatmgr.h
@@ -10,5 +10,6 @@
  ***************************************************************************/
 
 void SetupCheats();
+void OpenGameGenie();
 
 extern int numcheats;
diff --git a/source/ngc/fceugx.cpp b/source/ngc/fceugx.cpp
index 80caa50..e8d02fb 100644
--- a/source/ngc/fceugx.cpp
+++ b/source/ngc/fceugx.cpp
@@ -274,7 +274,7 @@ int main(int argc, char *argv[])
 	if (!FCEUI_Initialize())
 		ExitApp();
 
-	FCEUI_SetGameGenie(0); // 0 - OFF, 1 - ON
+	FCEUI_SetGameGenie(1); // 0 - OFF, 1 - ON
 
 	memset(FDSBIOS, 0, sizeof(FDSBIOS)); // clear FDS BIOS memory
 
diff --git a/source/ngc/fceugx.h b/source/ngc/fceugx.h
index f342d91..d9a55a3 100644
--- a/source/ngc/fceugx.h
+++ b/source/ngc/fceugx.h
@@ -40,6 +40,7 @@ enum {
 	FILE_STATE,
 	FILE_ROM,
 	FILE_FDSBIOS,
+	FILE_GGROM,
 	FILE_CHEAT,
 	FILE_PREF
 };
diff --git a/source/ngc/fceuload.cpp b/source/ngc/fceuload.cpp
index 41836ff..7e95d35 100644
--- a/source/ngc/fceuload.cpp
+++ b/source/ngc/fceuload.cpp
@@ -129,9 +129,9 @@ int GCMemROM(int method, int size)
 	{
 		FCEU_ResetVidSys();
 
-		//if(GameInfo->type!=GIT_NSF)
-		//	if(FSettings.GameGenie)
-		//		OpenGenie();
+		if(GameInfo->type!=GIT_NSF)
+			if(FSettings.GameGenie)
+				OpenGameGenie();
 		PowerNES();
 
 		//if(GameInfo->type!=GIT_NSF)
diff --git a/source/ngc/fceusupport.h b/source/ngc/fceusupport.h
index 4e8cf14..c5db766 100644
--- a/source/ngc/fceusupport.h
+++ b/source/ngc/fceusupport.h
@@ -42,6 +42,7 @@ extern int iNESLoad(const char *name, FCEUFILE *fp, int o);
 extern int UNIFLoad(const char *name, FCEUFILE *fp);
 extern int NSFLoad(FCEUFILE *fp);
 extern uint8 FDSBIOS[8192];
+extern uint8 *GENIEROM;
 extern FCEUGI *GameInfo;
 extern int CloseGame();
 
diff --git a/source/ngc/filebrowser.cpp b/source/ngc/filebrowser.cpp
index 2d25b3e..16f39fc 100644
--- a/source/ngc/filebrowser.cpp
+++ b/source/ngc/filebrowser.cpp
@@ -269,9 +269,13 @@ bool MakeFilePath(char filepath[], int type, int method, char * filename, int fi
 				break;
 
 			case FILE_FDSBIOS:
-				sprintf(folder, GCSettings.LoadFolder);
+				sprintf(folder, "fceugx");
 				sprintf(file, "disksys.rom");
 				break;
+			case FILE_GGROM:
+				sprintf(folder, "fceugx");
+				sprintf(file, "gg.rom");
+				break;
 			case FILE_CHEAT:
 				sprintf(folder, GCSettings.CheatFolder);
 				sprintf(file, "%s.cht", romFilename);