00001 /*************************************************************************** 00002 * Copyright (C) 2006 by Rick L. Vinyard, Jr. * 00003 * rvinyard@cs.nmsu.edu * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU Lesser General Public License as * 00007 * published by the Free Software Foundation version 2.1. * 00008 * * 00009 * This program is distributed in the hope that it will be useful, * 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00012 * GNU General Public License for more details. * 00013 * * 00014 * You should have received a copy of the GNU Lesser General Public * 00015 * License along with this library; if not, write to the * 00016 * Free Software Foundation, Inc., * 00017 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * 00018 ***************************************************************************/ 00019 #ifndef PAPYRUSYUVA_H 00020 #define PAPYRUSYUVA_H 00021 00022 namespace Papyrus { 00023 00024 class RGBA; 00025 00030 struct YUVA { 00031 YUVA(double yuv_y=0.0, double yuv_u=0.0, double yuv_v=0.0, double yuv_a=1.0); 00032 00033 YUVA(const RGBA& rgb); 00034 00035 double y, u, v, alpha; 00036 00037 double operator[](unsigned index); 00038 00039 YUVA& operator=(const RGBA& rgb); 00040 00041 operator RGBA(); 00042 00043 00044 }; 00045 00046 void rgb_to_yuv(double rgb_r, double rgb_g, double rgb_b, 00047 double& yuv_y, double& yuv_u, double& yuv_v); 00048 00049 void yuv_to_rgb(double yuv_y, double yuv_u, double yuv_v, 00050 double& rgb_r, double& rgb_g, double& rgb_b); 00051 00052 00053 } 00054 00055 #endif