godot/core/io/image_loader.h

/*************************************************************************/
/*  image_loader.h                                                       */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
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#ifndef IMAGE_LOADER_H
#define IMAGE_LOADER_H

#include "image.h"
#include "ustring.h"
#include "os/file_access.h"
#include "list.h"
/**
	@author Juan Linietsky <reduzio@gmail.com>
*/


/**
 * @class ImageScanLineLoader
 * @author Juan Linietsky <reduzio@gmail.com>
 *

 */
class ImageLoader;


/**
 * @class ImageLoader
 * Base Class and singleton for loading images from disk
 * Can load images in one go, or by scanline
 */


class ImageFormatLoader {
friend class ImageLoader;
protected:
	virtual Error load_image(Image *p_image,FileAccess *p_fileaccess)=0;
	virtual void get_recognized_extensions(List<String> *p_extensions) const=0;
	bool recognize(const String& p_extension) const;


public:
	virtual ~ImageFormatLoader() {}
};

class ImageLoader {

	enum {
		MAX_LOADERS=8
	};

	static ImageFormatLoader *loader[MAX_LOADERS];
	static int loader_count;

protected:


public:

	static Error load_image(String p_file,Image *p_image, FileAccess *p_custom=NULL);
	static void get_recognized_extensions(List<String> *p_extensions) ;
	static bool recognize(const String& p_extension) ;

	static void add_image_format_loader(ImageFormatLoader *p_loader);

};

#endif