Potential fix for errors related to 'Not enough free blocks'

changes fs getusage to return 1 additional inode to account for the directory itself
Fixes save creation for at least two games, R8XE52 (Jurassic: The Hunted), STEETR (Tetris Party Deluxe)
doesnt harm save creation in any games that i tested (about 25)

also it is now possible to boot a nand title by selecting the tmd file using File > Open

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7575 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_FileIO.cpp

@@ -156,7 +156,7 @@ bool CWII_IPC_HLE_Device_FileIO::Open(u32 _CommandAddress, u32 _Mode)
 	}
 	else
 	{
-		WARN_LOG(WII_IPC_FILEIO, "FileIO: Open failed - File doesn't exist %s", m_Filename.c_str());
+		WARN_LOG(WII_IPC_FILEIO, "FileIO: Open (%s) failed - File doesn't exist %s", Modes[_Mode], m_Filename.c_str());
 		ReturnValue = FS_FILE_NOT_EXIST;
 	}
 

Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_fs.cpp

@@ -190,20 +190,34 @@ bool CWII_IPC_HLE_Device_fs::IOCtlV(u32 _CommandAddress)
 			// this command sucks because it asks of the number of used 
 			// fsBlocks and inodes
 			// It should be correct, but don't count on it...
-			std::string path(HLE_IPC_BuildFilename((const char*)Memory::GetPointer(CommandBuffer.InBuffer[0].m_Address), CommandBuffer.InBuffer[0].m_Size));
+			const char *relativepath = (const char*)Memory::GetPointer(CommandBuffer.InBuffer[0].m_Address);
+			std::string path(HLE_IPC_BuildFilename(relativepath, CommandBuffer.InBuffer[0].m_Size));
 			u32 fsBlocks = 0;
 			u32 iNodes = 0;
 
 			INFO_LOG(WII_IPC_FILEIO, "IOCTL_GETUSAGE %s", path.c_str());
 			if (File::IsDirectory(path))
 			{
-				File::FSTEntry parentDir;
-				iNodes = File::ScanDirectoryTree(path, parentDir);
-
-				u64 totalSize = ComputeTotalFileSize(parentDir); // "Real" size, to be converted to nand blocks
+				// LPFaint99: After I found that setting the number of inodes to the number of children + 1 for the directory itself
+				// I decided to compare with sneek which has the following 2 special cases which are
+				// Copyright (C) 2009-2011  crediar http://code.google.com/p/sneek/
+				if ((memcmp(relativepath, "/title/00010001", 16 ) == 0 ) ||
+					(memcmp(relativepath, "/title/00010005", 16) == 0 ))
+				{
+					fsBlocks = 23; // size is size/0x4000
+					iNodes = 42; // empty folders return a FileCount of 1
+				}
+				else
+				{
+					File::FSTEntry parentDir;
+					// add one for the folder itself, allows some games to create their save files
+					// R8XE52 (Jurassic: The Hunted), STEETR (Tetris Party Deluxe) now create their saves with this change
+					iNodes = 1 + File::ScanDirectoryTree(path, parentDir);
 
-				fsBlocks = (u32)(totalSize / (16 * 1024));  // one bock is 16kb
+					u64 totalSize = ComputeTotalFileSize(parentDir); // "Real" size, to be converted to nand blocks
 
+					fsBlocks = (u32)(totalSize / (16 * 1024));  // one bock is 16kb
+				}
 				ReturnValue = FS_RESULT_OK;
 
 				INFO_LOG(WII_IPC_FILEIO, "FS: fsBlock: %i, iNodes: %i", fsBlocks, iNodes);

Source/Core/DiscIO/Src/NANDContentLoader.cpp

@@ -212,7 +212,7 @@ bool CNANDContentLoader::Initialize(const std::string& _rName)
 		}
 		else
 		{
-			SplitPath(TMDFileName, &m_Path, NULL, NULL);
+			m_Path = TMDFileName.substr(0, TMDFileName.find("title.tmd"));
 		}
 		File::IOFile pTMDFile(TMDFileName, "rb");
 		if (!pTMDFile)

Source/Core/DolphinWX/Src/FrameTools.cpp

@@ -662,7 +662,7 @@ void CFrame::DoOpen(bool Boot)
 			_("Select the file to load"),
 			wxEmptyString, wxEmptyString, wxEmptyString,
 			_("All GC/Wii files (elf, dol, gcm, iso, ciso, gcz, wad)") +
-			wxString::Format(wxT("|*.elf;*.dol;*.gcm;*.iso;*.ciso;*.gcz;*.wad;*.dff|%s"),
+			wxString::Format(wxT("|*.elf;*.dol;*.gcm;*.iso;*.ciso;*.gcz;*.wad;*.dff;*.tmd|%s"),
 				wxGetTranslation(wxALL_FILES)),
 			wxFD_OPEN | wxFD_FILE_MUST_EXIST,
 			this);