texture.cpp

/* Mondschein Engine is a fast, powerful, and easy-to-use 3D realtime rendering engine.
 *
 * Copyright (C) 2009-2013 by Andreas Amereller
 * E-Mail: andreas.amereller.dev@googlemail.com
 *
 * 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 3 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "gl13/texture.h"
#include "gl13/renderer.h"
#include "core/texture.h"
#include <GL/gl.h>
#include <GL/glu.h>

using namespace mondschein;
using namespace renderer;

GL13_Texture::GL13_Texture() : unit(0), texture(0)
{
  glGenTextures(1,&texture);
  return;
}

GL13_Texture::GL13_Texture(uint8 _u,uint32 _t) : unit(_u), texture(_t)
{
  return;
}

GL13_Texture::~GL13_Texture()
{
  glDeleteTextures(1,&texture);
  return;
}

void GL13_Texture::set_unit(uint8 _u)
{
  unit=_u;
  return;
}

uint8 GL13_Texture::get_unit() const
{
  return unit;
}

void GL13_Texture::set_texture(uint32 _t)
{
  texture=_t;
  return;
}

uint32 GL13_Texture::get_texture() const
{
  return texture;
}

void GL13_Texture::render() const
{
  if (glIsTexture(texture))
  {
    glActiveTexture(GL_TEXTURE0+unit);
    glBindTexture(GL_TEXTURE_2D,texture);
  }
  else
  {
    std::string err("Mondschein Engine ERROR: Internal reference is not a valid OpenGL 1.3 compliant texture object. ");
    err+="Exception raised in function\n\t";
    err+="void mondschein::renderer::GL13_Texture::render() const";
    throw boost::enable_current_exception(exception()) << exception_error(err);
  }
}