irrlicht/include/IImageLoader.h

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// Copyright (C) 2002-2009 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#ifndef __I_SURFACE_LOADER_H_INCLUDED__
#define __I_SURFACE_LOADER_H_INCLUDED__
#include "IReferenceCounted.h"
#include "IImage.h"
#include "path.h"
namespace irr
{
namespace io
{
class IReadFile;
} // end namespace io
namespace video
{
//! Class which is able to create a image from a file.
/** If you want the Irrlicht Engine be able to load textures of
currently unsupported file formats (e.g .gif), then implement
this and add your new Surface loader with
IVideoDriver::addExternalImageLoader() to the engine. */
class IImageLoader : public virtual IReferenceCounted
{
public:
//! Check if the file might be loaded by this class
/** Check is based on the file extension (e.g. ".tga")
\param filename Name of file to check.
\return True if file seems to be loadable. */
virtual bool isALoadableFileExtension(const io::path& filename) const = 0;
//! Check if the file might be loaded by this class
/** Check might look into the file.
\param file File handle to check.
\return True if file seems to be loadable. */
virtual bool isALoadableFileFormat(io::IReadFile* file) const = 0;
//! Creates a surface from the file
/** \param file File handle to check.
\return Pointer to newly created image, or 0 upon error. */
virtual IImage* loadImage(io::IReadFile* file) const = 0;
};
} // end namespace video
} // end namespace irr
#endif