png_bitmap.hpp

video linux conference

/*****************************************************************************
 * png_bitmap.hpp
 *****************************************************************************
 * Copyright (C) 2003 VideoLAN
 * $Id: png_bitmap.hpp 9581 2004-12-16 17:47:40Z gbazin $
 *
 * Authors: Cyril Deguet     <[e-mail]>
 *          Olivier Teuli鑢e <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

#ifndef PNG_BITMAP_HPP
#define PNG_BITMAP_HPP

#include "generic_bitmap.hpp"
#include <string>


/// Class for PNG bitmaps
class PngBitmap: public GenericBitmap
{
    public:
        /// Load a PNG bitmap from a file. aColor is the transparency
        /// color, in the format 0xRRGGBB
        PngBitmap( intf_thread_t *pIntf, image_handler_t *pImageHandler,
                   string fileName, uint32_t aColor );

        virtual ~PngBitmap();

        /// Get the width of the bitmap
        virtual int getWidth() const { return m_width; }

        /// Get the heighth of the bitmap
        virtual int getHeight() const { return m_height; }

        /// Get a linear buffer containing the image data.
        /// Each pixel is stored in 4 bytes in the order B,G,R,A
        virtual uint8_t *getData() const;

    private:
        /// Size of the bitmap.
        int m_width, m_height;
        /// Buffer containing the image data.
        uint8_t *m_pData;
};


#endif