Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CReadFile.h

@@ -0,0 +1,73 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#ifndef __C_READ_FILE_H_INCLUDED__
+#define __C_READ_FILE_H_INCLUDED__
+
+#include <stdio.h>
+#include "IReadFile.h"
+#include "irrString.h"
+
+namespace irr
+{
+
+namespace io
+{
+
+	/*!
+		Class for reading a real file from disk.
+	*/
+	class CReadFile : public IReadFile
+	{
+	public:
+
+		CReadFile(const io::path& fileName);
+
+		virtual ~CReadFile();
+
+		//! returns how much was read
+		virtual size_t read(void* buffer, size_t sizeToRead) _IRR_OVERRIDE_;
+
+		//! changes position in file, returns true if successful
+		virtual bool seek(long finalPos, bool relativeMovement = false) _IRR_OVERRIDE_;
+
+		//! returns size of file
+		virtual long getSize() const _IRR_OVERRIDE_;
+
+		//! returns if file is open
+		bool isOpen() const
+		{
+			return File != 0;
+		}
+
+		//! returns where in the file we are.
+		virtual long getPos() const _IRR_OVERRIDE_;
+
+		//! returns name of file
+		virtual const io::path& getFileName() const _IRR_OVERRIDE_;
+
+		//! Get the type of the class implementing this interface
+		virtual EREAD_FILE_TYPE getType() const _IRR_OVERRIDE_
+		{
+			return ERFT_READ_FILE;
+		}
+
+		//! create read file on disk.
+		static IReadFile* createReadFile(const io::path& fileName);
+
+	private:
+
+		//! opens the file
+		void openFile();
+
+		FILE* File;
+		long FileSize;
+		io::path Filename;
+	};
+
+} // end namespace io
+} // end namespace irr
+
+#endif
+