Texture.cpp

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00001 /******************************************************************************
00002 *       SOFA, Simulation Open-Framework Architecture, version 1.0 beta 3      *
00003 *                (c) 2006-2008 MGH, INRIA, USTL, UJF, CNRS                    *
00004 *                                                                             *
00005 * This library is free software; you can redistribute it and/or modify it     *
00006 * under the terms of the GNU Lesser General Public License as published by    *
00007 * the Free Software Foundation; either version 2.1 of the License, or (at     *
00008 * your option) any later version.                                             *
00009 *                                                                             *
00010 * This library is distributed in the hope that it will be useful, but WITHOUT *
00011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       *
00012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License *
00013 * for more details.                                                           *
00014 *                                                                             *
00015 * You should have received a copy of the GNU Lesser General Public License    *
00016 * along with this library; if not, write to the Free Software Foundation,     *
00017 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.          *
00018 *******************************************************************************
00019 *                              SOFA :: Framework                              *
00020 *                                                                             *
00021 * Authors: M. Adam, J. Allard, B. Andre, P-J. Bensoussan, S. Cotin, C. Duriez,*
00022 * H. Delingette, F. Falipou, F. Faure, S. Fonteneau, L. Heigeas, C. Mendoza,  *
00023 * M. Nesme, P. Neumann, J-P. de la Plata Alcade, F. Poyer and F. Roy          *
00024 *                                                                             *
00025 * Contact information: contact@sofa-framework.org                             *
00026 ******************************************************************************/
00027 #include <sofa/helper/gl/Texture.h>
00028 #include <assert.h>
00029 
00030 namespace sofa
00031 {
00032 
00033 namespace helper
00034 {
00035 
00036 namespace gl
00037 {
00038 
00039 void Texture::init(void)
00040 {
00041     glGenTextures(1, &id); // Create The Texture
00042 //     std::cout << "Create "<<image->getWidth()<<"x"<<image->getHeight()<<" Texture "<<id<<std::endl; 
00043     // Typical Texture Generation Using Data From The Bitmap
00044     glBindTexture(GL_TEXTURE_2D, id);
00045     switch(image->getNbBits())
00046     {
00047     case 32:
00048         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image->getWidth(), image->getHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, image->getData());
00049         break;
00050     case 24:
00051         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, image->getWidth(), image->getHeight(), 0, GL_RGB, GL_UNSIGNED_BYTE, image->getData());
00052         break;
00053     case 8:
00054         glTexImage2D(GL_TEXTURE_2D, 0, GL_INTENSITY, image->getWidth(), image->getHeight(), 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, image->getData());
00055         break;
00056     }
00057     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
00058     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
00059 //     std::cout << "Texture "<<id<<" Created"<<std::endl; 
00060 }
00061 
00062 void Texture::bind(void)
00063 {
00064     glBindTexture(GL_TEXTURE_2D, id);
00065 }
00066 
00067 void Texture::unbind(void)
00068 {
00069     glBindTexture(GL_TEXTURE_2D, 0);
00070 }
00071 
00072 io::Image* Texture::getImage(void)
00073 {
00074     return image;
00075 }
00076 Texture::~Texture(void)
00077 {
00078     glDeleteTextures(1, &id);
00079     delete image;
00080 }
00081 
00082 } // namespace gl
00083 
00084 } // namespace helper
00085 
00086 } // namespace sofa
00087