generic_bitmap.cpp
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上传日期:2009-03-27
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- /*****************************************************************************
- * generic_bitmap.cpp
- *****************************************************************************
- * Copyright (C) 2004 VideoLAN
- * $Id: generic_bitmap.cpp 7173 2004-03-27 00:21:13Z asmax $
- *
- * 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"
- BitmapImpl::BitmapImpl( intf_thread_t *pIntf, int width, int height ):
- GenericBitmap( pIntf ), m_width( width ), m_height( height ),
- m_pData( NULL )
- {
- m_pData = new uint8_t[width * height * 4];
- memset( m_pData, 0, width * height * 4 );
- }
- BitmapImpl::~BitmapImpl()
- {
- delete[] m_pData;
- }
- void BitmapImpl::drawBitmap( const GenericBitmap &rSource, int xSrc, int ySrc,
- int xDest, int yDest, int width, int height )
- {
- int srcWidth = rSource.getWidth();
- uint32_t *pSrc = (uint32_t*)rSource.getData() + ySrc * srcWidth + xSrc;
- uint32_t *pDest = (uint32_t*)m_pData + yDest * m_width + xDest ;
- for( int y = 0; y < height; y++ )
- {
- memcpy( pDest, pSrc, 4 * width );
- pSrc += srcWidth;
- pDest += m_width;
- }
- }