/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Stuart Parmenter <pavlov@netscape.com>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef nsPNGDecoder_h__
#define nsPNGDecoder_h__

#include "imgIDecoder.h"

#include "imgIContainer.h"
#include "imgIDecoderObserver.h"
#include "gfxIImageFrame.h"
#include "imgILoad.h"


#include "nsCOMPtr.h"

#include "png.h"

#define NS_PNGDECODER_CID \
{ /* 36fa00c2-1dd2-11b2-be07-d16eeb4c50ed */         \
     0x36fa00c2,                                     \
     0x1dd2,                                         \
     0x11b2,                                         \
    {0xbe, 0x07, 0xd1, 0x6e, 0xeb, 0x4c, 0x50, 0xed} \
}

class nsPNGDecoder : public imgIDecoder
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_IMGIDECODER

  nsPNGDecoder();
  virtual ~nsPNGDecoder();

public:
  nsCOMPtr<imgIContainer> mImage;
  nsCOMPtr<gfxIImageFrame> mFrame;
  nsCOMPtr<imgILoad> mImageLoad;
  nsCOMPtr<imgIDecoderObserver> mObserver; // this is just qi'd from mRequest for speed

  png_structp mPNG;
  png_infop mInfo;
  PRUint8 *colorLine, *alphaLine;
  PRUint8 *interlacebuf;
  PRUint32 ibpr;
  PRPackedBool mError;
};

#endif // nsPNGDecoder_h__
