/*****************************************************************************
 * generic_bitmap.cpp
 *****************************************************************************
 * Copyright (C) 2004 VideoLAN
 * $Id$
 *
 * Authors: Cyril Deguet     <asmax@via.ecp.fr>
 *
 * 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.
 *****************************************************************************/

#include "generic_bitmap.hpp"


SubBitmap::SubBitmap( intf_thread_t *pIntf, const GenericBitmap &rSource,
                      int left, int top, int width, int height ):
    GenericBitmap( pIntf ), m_width( width ), m_height( height ),
    m_pData( NULL )
{
    m_pData = new uint8_t[width * height * 4];

    uint32_t *pSrc = (uint32_t*)rSource.getData();
    uint32_t *pDest = (uint32_t*)m_pData;
    int srcWidth = rSource.getWidth();
    for( int y = top; y < top + height; y++ )
    {
        memcpy( pDest, pSrc, 4 * width );
        pSrc += srcWidth;
        pDest += width;
    }
}


SubBitmap::~SubBitmap()
{
    delete[] m_pData;
}

