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

include/IWriteFile.h

@@ -0,0 +1,51 @@
+// 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 __I_WRITE_FILE_H_INCLUDED__
+#define __I_WRITE_FILE_H_INCLUDED__
+
+#include "IReferenceCounted.h"
+#include "path.h"
+
+namespace irr
+{
+namespace io
+{
+
+	//! Interface providing write access to a file.
+	class IWriteFile : public virtual IReferenceCounted
+	{
+	public:
+		//! Writes an amount of bytes to the file.
+		/** \param buffer Pointer to buffer of bytes to write.
+		\param sizeToWrite Amount of bytes to write to the file.
+		\return How much bytes were written. */
+		virtual size_t write(const void* buffer, size_t sizeToWrite) = 0;
+
+		//! Changes position in file
+		/** \param finalPos Destination position in the file.
+		\param relativeMovement If set to true, the position in the file is
+		changed relative to current position. Otherwise the position is changed
+		from begin of file.
+		\return True if successful, otherwise false. */
+		virtual bool seek(long finalPos, bool relativeMovement = false) = 0;
+
+		//! Get the current position in the file.
+		/** \return Current position in the file in bytes on success or -1L on failure */
+		virtual long getPos() const = 0;
+
+		//! Get name of file.
+		/** \return File name as zero terminated character string. */
+		virtual const path& getFileName() const = 0;
+
+		//! Flush the content of the buffer in the file
+		/** \return True if successful, otherwise false. */
+		virtual bool flush() = 0;
+	};
+
+} // end namespace io
+} // end namespace irr
+
+#endif
+