sdlpixelformat.cpp

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00001 /*
00002   libwt - Vassilis Virvilis Toolkit - a widget library
00003   Copyright (C) 2006 Vassilis Virvilis <vasvir2@fastmail.fm>
00004  
00005   This library is free software; you can redistribute it and/or
00006   modify it under the terms of the GNU Lesser General Public
00007   License as published by the Free Software Foundation; either
00008   version 2.1 of the License, or (at your option) any later version.
00009   
00010   This library is distributed in the hope that it will be useful,
00011   but WITHOUT ANY WARRANTY; without even the implied warranty of
00012   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013   Lesser General Public License for more details.
00014   
00015   You should have received a copy of the GNU Lesser General Public
00016   License along with this library; if not, write to the
00017   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00018   Boston, MA  02111-1307, SA.
00019 */
00020 
00021 #include "sdlpixelformat.h"
00022 
00023 namespace Wt {
00024 
00025 SDLColor SDLPixelFormat::mapToColor(int v) const {
00026     Uint8 r, g, b, a;
00027     //SDL breakage
00028     SDL_PixelFormat *f = const_cast<SDL_PixelFormat *>(sdl_pixelformat);
00029     SDL_GetRGBA(v, f, &r, &g, &b, &a);
00030 
00031     return SDLColor(r, g, b, a);
00032 }
00033 
00034 int SDLPixelFormat::mapToPixelValue(const SDLColor& c) const {
00035     //SDL breakage
00036     SDL_PixelFormat *f = const_cast<SDL_PixelFormat *>(sdl_pixelformat);
00037     return SDL_MapRGBA(f, c.red(), c.green(), c.blue(), c.alpha());
00038 }
00039 
00040 SDLColor SDLPixelFormat::transparentColor() const {
00041     return mapToColor(sdl_pixelformat->colorkey);
00042 }
00043 
00044 } // namespace

Generated Fri Jul 28 19:23:00 2006.
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