Initial megacommit.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoDX9/Src/W32Util/ChunkFile.h

@@ -0,0 +1,59 @@
+#pragma once
+
+//TO REMEMBER WHEN USING:
+
+//EITHER a chunk contains ONLY data
+//OR it contains ONLY other chunks
+//otherwise the scheme breaks...
+#include "File.h"
+
+namespace W32Util
+{
+	inline unsigned int flipID(unsigned int id)
+	{
+		return ((id>>24)&0xFF) | ((id>>8)&0xFF00) | ((id<<8)&0xFF0000) | ((id<<24)&0xFF000000);
+	}
+
+	class ChunkFile
+	{
+		File file;
+		struct ChunkInfo
+		{
+			int startLocation;
+			int parentStartLocation;
+			int parentEOF;
+			unsigned int ID;
+			int length;
+		};
+		ChunkInfo stack[8];
+		int numLevels;
+
+		char *data;
+		int pos,eof;
+		bool fastMode;
+		bool read;
+		bool didFail;
+
+		void SeekTo(int _pos);
+		int GetPos() {return pos;}
+	public:
+		ChunkFile(const TCHAR *filename, bool _read);
+		~ChunkFile();
+
+		bool Descend(unsigned int id);
+		void Ascend();
+
+		int  ReadInt();
+		void ReadInt(int &i) {i = ReadInt();}
+		void ReadData(void *data, int count);
+//		String ReadString();
+
+		void WriteInt(int i);
+		//void WriteString(String str);
+		void WriteData(void *data, int count);
+
+		int GetCurrentChunkSize();
+		bool Failed() {return didFail;}
+	};
+
+}