/*
 * Copyright (c) 2006-2009, Google Inc. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 */

#ifndef PNGImageEncoder_h
#define PNGImageEncoder_h

#include "Vector.h"

class IntSize;
class SkBitmap;

namespace WebCore {

    // Interface for encoding PNG data. This is a wrapper around libpng.
    class PNGImageEncoder {
    public:
        // Encodes the specific SkBitmap into the supplied vector.
        static bool encode(const SkBitmap&, WTF::Vector<unsigned char>* output);

        // Encodes the specified image data into the supplied vector.
        // w, h give the size of the image and bytes_per_row gives the bytes
        // per row.
        static bool encode(const unsigned char* input, const IntSize& size, int bytesPerRow, WTF::Vector<unsigned char>* output);
    };

}  // namespace WebCore

#endif