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/IImageWriter.h

@@ -0,0 +1,45 @@
+// 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_IMAGE_WRITER_H_INCLUDED__
+#define _I_IMAGE_WRITER_H_INCLUDED__
+
+#include "IReferenceCounted.h"
+#include "irrString.h"
+#include "coreutil.h"
+
+namespace irr
+{
+namespace io
+{
+	class IWriteFile;
+} // end namespace io
+
+namespace video
+{
+	class IImage;
+
+
+//! Interface for writing software image data.
+class IImageWriter : public IReferenceCounted
+{
+public:
+	//! Check if this writer can write a file with the given extension
+	/** \param filename Name of the file to check.
+	\return True if file extension specifies a writable type. */
+	virtual bool isAWriteableFileExtension(const io::path& filename) const = 0;
+
+	//! Write image to file
+	/** \param file File handle to write to.
+	\param image Image to write into file.
+	\param param Writer specific parameter, influencing e.g. quality.
+	\return True if image was successfully written. */
+	virtual bool writeImage(io::IWriteFile *file, IImage *image, u32 param = 0) const = 0;
+};
+
+} // namespace video
+} // namespace irr
+
+#endif // _I_IMAGE_WRITER_H_INCLUDED__
+