Modify state.dat before launching wads. Fixes Liight, maybe others. If in doubt, install the wad to the nand.

Source/Core/Common/Src/CommonPaths.h

@@ -121,6 +121,8 @@
 #define GC_MEMCARDA	"MemoryCardA"
 #define GC_MEMCARDB	"MemoryCardB"
 
+#define WII_STATE 	"state.dat"
+
 #define WII_SETTING 	"setting.txt"
 #define WII_EUR_SETTING "setting-eur.txt"
 #define WII_USA_SETTING "setting-usa.txt"

Source/Core/Core/Src/Boot/Boot_WiiWAD.cpp

@@ -32,8 +32,57 @@
 #include "VolumeCreator.h"
 #include "CommonPaths.h"
 
+static u32 state_checksum(u32 *buf, int len)
+{
+	u32 checksum = 0;
+	len = len>>2;
+
+	for(int i=0; i<len; i++)
+	{
+		checksum += buf[i];
+	}
+
+	return checksum;
+}
+
+typedef struct {
+	u32 checksum;
+	u8 flags;
+	u8 type;
+	u8 discstate;
+	u8 returnto;
+	u32 unknown[6];
+} StateFlags;
+
 bool CBoot::Boot_WiiWAD(const char* _pFilename)
 {
+	
+	std::string state_filename(Common::GetTitleDataPath(TITLEID_SYSMENU) + WII_STATE);
+
+	if (File::Exists(state_filename))
+	{
+		File::IOFile state_file(state_filename, "r+b");
+		StateFlags state;
+		state_file.ReadBytes(&state, sizeof(StateFlags));
+		
+		state.type = 0x03; // TYPE_RETURN
+		state.checksum = state_checksum((u32*)&state.flags, sizeof(StateFlags)-4);
+
+		state_file.Seek(0, SEEK_SET);
+		state_file.WriteBytes(&state, sizeof(StateFlags));
+	}
+	else
+	{
+		File::CreateFullPath(state_filename);
+		File::IOFile state_file(state_filename, "a+b");
+		StateFlags state;
+		memset(&state,0,sizeof(StateFlags));
+		state.type = 0x03; // TYPE_RETURN
+		state.discstate = 0x01; // DISCSTATE_WII
+		state.checksum = state_checksum((u32*)&state.flags, sizeof(StateFlags)-4);
+		state_file.WriteBytes(&state, sizeof(StateFlags));
+	}
+
 	const DiscIO::INANDContentLoader& ContentLoader = DiscIO::CNANDContentManager::Access().GetNANDLoader(_pFilename);
 	if (!ContentLoader.IsValid())
 		return false;

Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_es.cpp

@@ -266,8 +266,7 @@ bool CWII_IPC_HLE_Device_es::IOCtlV(u32 _CommandAddress)
 
 			m_ContentAccessMap[CFD].m_Position = 0;
 			m_ContentAccessMap[CFD].m_pContent = AccessContentDevice(m_TitleID).GetContentByIndex(Index);
-			_dbg_assert_(WII_IPC_ES, m_ContentAccessMap[CFD].m_pContent != NULL);
+			
-
 			if (m_ContentAccessMap[CFD].m_pContent == NULL)
 				CFD = 0xffffffff; //TODO: what is the correct error value here?
 
@@ -740,6 +739,7 @@ bool CWII_IPC_HLE_Device_es::IOCtlV(u32 _CommandAddress)
         {
             _dbg_assert_(WII_IPC_ES, Buffer.NumberInBuffer == 2);
 			bool bSuccess = false;
+			bool reloadIOS = false;
 			u16 IOSv = 0xffff;
 
             u64 TitleID		= Memory::Read_U64(Buffer.InBuffer[0].m_Address);
@@ -776,14 +776,16 @@ bool CWII_IPC_HLE_Device_es::IOCtlV(u32 _CommandAddress)
 				// Lie to mem about loading a different ios
 				// someone with an affected game should test
 				IOSv = TitleID & 0xffff;
+				reloadIOS = true;
 			}
 			if (!bSuccess)
 			{
 				PanicAlertT("IOCTL_ES_LAUNCH: Game tried to reload ios or a title that is not available in your nand dump\n"
 					"TitleID %016llx.\n Dolphin will likely hang now", TitleID);
 			}
-			else
+			else if (reloadIOS)
 			{
+				std::string tContentFile(m_ContentFile.c_str());
 				WII_IPC_HLE_Interface::Reset(true);
 				WII_IPC_HLE_Interface::Init();
 
@@ -800,7 +802,8 @@ bool CWII_IPC_HLE_Device_es::IOCtlV(u32 _CommandAddress)
 						s_Usb->m_WiiMotes[i].Activate(false);
 					}
 				}
-
+				
+				WII_IPC_HLE_Interface::SetDefaultContentFile(tContentFile);
 			}
 			// Pass the "#002 check"
 			// Apploader should write the IOS version and revision to 0x3140, and compare it