glutil.h

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/*
 * Author: David Woolford, 11/06/2007 (woolford@bcm.edu)
 * Copyright (c) 2000-2006 Baylor College of Medicine
 *
 * This software is issued under a joint BSD/GNU license. You may use the
 * source code in this file under either license. However, note that the
 * complete EMAN2 and SPARX software packages have some GPL dependencies,
 * so you are responsible for compliance with the licenses of these packages
 * if you opt to use BSD licensing. The warranty disclaimer below holds
 * in either instance.
 *
 * This complete copyright notice must be included in any revised version of the
 * source code. Additional authorship citations may be added, but existing
 * author citations must be preserved.
 *
 * 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 2 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * */
#ifndef glutil_h__
#define glutil_h__
 
#include <vector>
#include "vec3.h"
#include "transform.h"
#include "emdata.h"
 
#ifdef __APPLE__
        #include "OpenGL/gl.h"
#else // WIN32, LINUX
        #include "GL/gl.h"
#endif  //__APPLE__
 
using std::vector;
 
namespace EMAN
{
        class EMData;
        class MarchingCubes;
 
        class GLUtil {
        public:
                static unsigned int gen_glu_mipmaps(const EMData* const emdata);
 
                static unsigned int gen_gl_texture(const EMData* const emdata, GLenum format = GL_LUMINANCE);
 
                static unsigned int render_amp8_gl_texture(EMData* emdata, int x0, int y0, int ixsize, int iysize, int bpl, float scale, int mingray, int maxgray,      float render_min, float render_max,float gamma,int flags);
 
                static int nearest_projected_points(const vector<float>& model_matrix, const vector<float>& proj_matrix, const vector<int>& view_matrix, const vector<Vec3f>& points, const float mouse_x, const float mouse_y,const float& nearnes);
                static void colored_rectangle(const vector<float>& data,const float& alpha, const bool center_point=false);
                static void mx_bbox(const vector<float>& data, const vector<float>& text_color, const vector<float>& bg_color);
 
                static EMBytes render_amp8(EMData * emdata, int x, int y, int xsize, int ysize,
                                                 int bpl, float scale, int min_gray, int max_gray,
                                                 float min_render, float max_render,float gamma,int flags);
 
                static unsigned long get_isosurface_dl(MarchingCubes* mc, unsigned int tex_id = 0, bool surface_face_z = false, bool recontour = true);
                
                static void render_using_VBOs(MarchingCubes* mc, unsigned int tex_id = 0, bool surface_face_z = false);
                
                static void contour_isosurface(MarchingCubes* mc);
                
                static void glLoadMatrix(const Transform& xform);
                
                static void glMultMatrix(const Transform& xform);
                
                static void glDrawBoundingBox(float width, float height, float depth);
                
                static void glDrawDisk(float radius, int spokes);
                
        private:
                //This is a buffer for the bounding box
                static GLuint buffer[2];
                
        };
}
 
#endif  //glutil_h__