graphics.h

/*****************************************************************************
 *
 *  Elmer, A Finite Element Software for Multiphysical Problems
 *
 *  Copyright 1st April 1995 - , CSC - IT Center for Science Ltd., Finland
 * 
 *  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 (in file fem/GPL-2); if not, write to the 
 *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 
 *  Boston, MA 02110-1301, USA.
 *
 *****************************************************************************/

/*******************************************************************************
 *
 * Includes for X & OpenGL.
 *
 *******************************************************************************
 *
 *                     Author:       Juha Ruokolainen
 *
 *                    Address: CSC - IT Center for Science Ltd.
 *                                Keilaranta 14, P.O. BOX 405
 *                                  02101 Espoo, Finland
 *                                  Tel. [phone]
 *                                Telefax: [phone]
 *                              EMail: [email protected]
 *
 *                       Date: 26 Sep 1995
 *
 *                Modified by:
 *
 *       Date of modification:
 *
 * $Id: graphics.h,v 1.3 2005/05/31 11:28:14 vierinen Exp $
 *
 * $Log: graphics.h,v $
 * Revision 1.3  2005/05/31 11:28:14  vierinen
 * ads
 *
 * Revision 1.2  2005/05/31 10:39:03  vierinen
 * apple?
 *
 * Revision 1.1.1.1  2005/05/31 06:29:21  vierinen
 * ads
 *
 * Revision 1.4  2001/06/29 12:00:05  jpr
 * *** empty log message ***
 *
 * Revision 1.3  2001/06/13 07:55:53  jpr
 * *** empty log message ***
 *
 * Revision 1.2  1998/07/31 13:36:55  jpr
 *
 * Added id, started log.
 *
 *
 ******************************************************************************/

#include "../../config.h"

#ifndef MINGW32

#include <X11/X.h>
#include <X11/keysymdef.h>
#include "../glaux/glaux.h"

#else

#include <GL/glaux.h>

#endif

#include <GL/gl.h>
#include <GL/glu.h>



/*
 *  Material for lightning computations
 */
typedef struct material_s
{
    struct material_s *Next;

    char *Name;

    int Changed;

    float Shininess;
    float Diffuse[4],Specular[4];
} material_t;

/*
 * 
 */
typedef struct rgb_s
{
    unsigned char r,g,b;
} rgb_t;

typedef struct colormap_s
{
    struct colormap_s *Next;

    char *Name;

    int Changed;

    rgb_t *Values; 
    int NumberOfEntries;
} colormap_t;

#ifdef MODULE_GRAPHICS

material_t DefaultMaterial =
{
   NULL, NULL, TRUE, 20.0, { 0.8,0.8,0.8,1.0 }, { 0.0,0.0,0.0,1.0 }
};
material_t DefaultEdgeMaterial =
{
   NULL, NULL, TRUE, 20.0, { 0.8,0.8,0.8,1.0 }, { 0.0,0.0,0.0,1.0 }
};
material_t def_mat =
{
   NULL, NULL, TRUE, 20.0, { 0.8,0.8,0.8,1.0 }, { 0.0,0.0,0.0,1.0 }
};

colormap_t DefaultColorMap =
{
    NULL, NULL, TRUE, NULL, 0
};
colormap_t def_map =
{
    NULL, NULL, TRUE, NULL, 0
};

colormap_t *ArrowColorMap   = &DefaultColorMap, *MeshColorMap = &DefaultColorMap,
           *ContourColorMap = &DefaultColorMap, *IsoSurfaceColorMap = &DefaultColorMap,
           *SphereColorMap  = &DefaultColorMap, *ParticleColorMap = &DefaultColorMap;

material_t *ArrowMaterial   = &DefaultMaterial, *MeshMaterial = &DefaultMaterial,
           *ContourMaterial = &DefaultMaterial, *IsoSurfaceMaterial = &DefaultMaterial,
           *SphereMaterial  = &DefaultMaterial, *ParticleMaterial = &DefaultMaterial;

#else

extern colormap_t DefaultColorMap,def_map;

extern colormap_t *ArrowColorMap,*MeshColorMap,*ContourColorMap,
                  *IsoSurfaceColorMap,*SphereColorMap,*ParticleColorMap;

extern material_t DefaultMaterial,DefaultEdgeMaterial,def_mat;
extern material_t *ArrowMaterial,*MeshMaterial,*ContourMaterial,
                  *IsoSurfaceMaterial,*SphereMaterial,*ParticleMaterial;
#endif


/*
 * Try keeping direct softcalls to OpenGL in graphics module...
 */
#define GRA_FILL      (GL_FILL)
#define GRA_LINE      (GL_LINE)

#define GRA_POINTS    (GL_POINTS)
#define GRA_LINES     (GL_LINES)
#define GRA_QUADS     (GL_QUADS)
#define GRA_TRIANGLES (GL_TRIANGLES)

#define gra_end() glEnd()
#define gra_begin( Mode ) glBegin( Mode )

#define gra_lon()  glEnable( GL_LIGHTING )
#define gra_loff() glDisable( GL_LIGHTING )

#define gra_beg_lines() { glDisable( GL_LIGHTING ); glBegin( GL_LINES ); }
#define gra_end_lines() { glEnd(); glEnable( GL_LIGHTING ); }

#define gra_line_width(a) glLineWidth(a)

#define gra_push_matrix() glPushMatrix()
#define gra_pop_matrix()  glPopMatrix()
#define gra_mult_matrix(Matrix) glMultMatrixd( (GLdouble *)Matrix )
#define gra_load_identity() glLoadIdentity()

#define gra_look_at(fx,fy,fz,tx,ty,tz,ux,uy,uz) gluLookAt(fx,fy,fz,tx,ty,tz,ux,uy,uz)

#define gra_polygon_mode( Mode ) glPolygonMode( GL_FRONT_AND_BACK, Mode )