revamp handling of wii sysconf. it's in Common lib so that plugins can (possibly) utilize it if they like

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4268 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Common/Src/SysConf.h

@@ -0,0 +1,122 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#ifndef __SYSCONF_MANAGER_h__
+#define __SYSCONF_MANAGER_h__
+
+// This class is meant to edit the values in a given Wii SYSCONF file
+// It currently does not add/remove/rearrange sections,
+// instead only modifies exiting sections' data
+
+#define SYSCONF_SIZE 0x4000
+
+enum SysconfType
+{
+	Type_BigArray = 1,
+	Type_SmallArray,
+	Type_Byte,
+	Type_Short,
+	Type_Long,
+	Type_Unknown,
+	Type_Bool
+};
+
+struct SSysConfHeader
+{
+	char version[4];
+	u16 numEntries;
+};
+
+struct SSysConfEntry
+{
+	u16 offset;
+	SysconfType type;
+	u8 nameLength;
+	char name[32];
+	u16 dataLength;
+	u8* data;
+
+	template<class T>
+	T GetData() { return *(T*)data; }
+};
+
+class SysConf
+{
+private:
+	SSysConfHeader m_Header;
+	std::string m_Filename;
+	std::vector<SSysConfEntry> m_Entries;
+	bool m_IsValid;
+
+public:
+	SysConf();
+	~SysConf();
+
+	bool IsValid() { return m_IsValid; }
+
+	template<class T>
+	T GetData(const char* sectionName)
+	{
+		if (!m_IsValid)
+		{
+			PanicAlert("Trying to read from invalid SYSCONF");
+			return 0;
+		}
+
+		size_t index = 0;
+		for (index; index < m_Entries.size() - 1; index++)
+		{
+			if (strcmp(m_Entries.at(index).name, sectionName) == 0)
+				break;
+		}
+		if (index == m_Entries.size() - 1)
+		{
+			PanicAlert("Section %s not found in SYSCONF", sectionName);
+			return 0;
+		}
+
+		return m_Entries.at(index).GetData<T>();
+	}
+
+	template<class T>
+	bool SetData(const char* sectionName, T newValue)
+	{
+		if (!m_IsValid)
+			return false;
+
+		size_t index = 0;
+		for (index; index < m_Entries.size() - 1; index++)
+		{
+			if (strcmp(m_Entries.at(index).name, sectionName) == 0)
+				break;
+		}
+		if (index == m_Entries.size() - 1)
+		{
+			PanicAlert("Section %s not found in SYSCONF", sectionName);
+			return false;
+		}
+
+		*(T*)m_Entries.at(index).data = newValue;
+		return true;
+	}
+
+	bool Save();
+	bool SaveToFile(const char* filename);
+	bool LoadFromFile(const char* filename);
+};
+
+#endif // __SYSCONF_MANAGER_h__