pngreader.h

这是法国Kaleido公司提供了一个手机mmi设计平台

/***************************************************************************
                     PNGReader.h  -  An PNG decoder
                     ---------
    begin                : Tue Feb 07 2006
    copyright            : (C) 2003-2006 by DigitalAirways
    email                : [e-mail]
 ***************************************************************************/

/*
 * Copyright (c) 2005-2006 DigitalAirways, sarl. All Rights Reserved.
 *
 * This software is the confidential and proprietary information of
 * DigitalAirways, sarl. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with DigitalAirways.
 * A copy of this license is included in the licence.txt file included
 * on this software package.
 *
 */


#ifndef _PNGREADER_H_
#define _PNGREADER_H_

#include "EB_PFWGraphics.h"


struct PngHuffTree
	{
	unsigned short index_zero;
	unsigned short index_one;
	unsigned int node_data;
	};



/*****************************************************************************
* Global functions
******************************************************************************/

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Creates a 32bit buffer from a bloc of data
 */
void decodePNGImage(unsigned char* data, int dataLen, unsigned char** buffer, int *w, int *h);
/*
 * Return non zero if the bloc of data seems to be a valid PNG file
 */
int isValidPNGImage(unsigned char* data, int dataLen);
/*
 * Creates a PFWGraphics from a bloc of data
 */
void readPNGImage(PFWGraphics* g , unsigned char* data, int dataLen);

#ifdef __cplusplus
}
#endif

#endif // ndef _PNGREADER_H_