1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003 the VideoLAN team
7 * Authors: Cyril Deguet <asmax@via.ecp.fr>
8 * Olivier Teulière <ipkiss@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
26 #include "vlc_image.h"
27 #include "file_bitmap.hpp"
29 FileBitmap::FileBitmap( intf_thread_t *pIntf, image_handler_t *pImageHandler,
30 string fileName, uint32_t aColor ):
31 GenericBitmap( pIntf ), m_width( 0 ), m_height( 0 ), m_pData( NULL )
33 video_format_t fmt_in = {0}, fmt_out = {0};
36 fmt_out.i_chroma = VLC_FOURCC('R','V','3','2');
38 pPic = image_ReadUrl( pImageHandler, fileName.c_str(), &fmt_in, &fmt_out );
41 m_width = fmt_out.i_width;
42 m_height = fmt_out.i_height;
44 m_pData = new uint8_t[m_height * m_width * 4];
46 // Compute the alpha layer
47 uint8_t *pData = m_pData, *pSrc = pPic->p->p_pixels;
48 for( int y = 0; y < m_height; y++ )
50 for( int x = 0; x < m_width; x++ )
52 uint32_t b = *(pSrc++);
53 uint32_t g = *(pSrc++);
54 uint32_t r = *(pSrc++);
55 uint8_t a = *(pSrc++);
56 *(pData++) = (b * a) >> 8;
57 *(pData++) = (g * a) >> 8;
58 *(pData++) = (r * a) >> 8;
60 // Transparent pixel ?
61 if( aColor == (r<<16 | g<<8 | b) )
71 pSrc += pPic->p->i_pitch - m_width * 4;
74 pPic->pf_release( pPic );
79 FileBitmap::~FileBitmap()
81 if( m_pData ) delete[] m_pData;
85 uint8_t *FileBitmap::getData() const
89 msg_Warn( getIntf(), "FileBitmap::getData() returns NULL" );