/* $Id: light.h,v 1.2 2000/10/27 15:21:40 mholst Exp $ */

/*
 * Mesa 3-D graphics library
 * Version:  2.1
 * Copyright (C) 1995-1996  Brian Paul
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef LIGHT_H
#define LIGHT_H


#include "types.h"


extern void gl_ShadeModel( GLcontext *ctx, GLenum mode );

extern void gl_ColorMaterial( GLcontext *ctx, GLenum face, GLenum mode );

extern void gl_Lightfv( GLcontext *ctx,
                        GLenum light, GLenum pname, const GLfloat *params,
                        GLint nparams );

extern void gl_LightModelfv( GLcontext *ctx,
                             GLenum pname, const GLfloat *params );


extern GLuint gl_material_bitmask( GLenum face, GLenum pname );

extern void gl_set_material( GLcontext *ctx, GLuint bitmask,
                             const GLfloat *params);

extern void gl_Materialfv( GLcontext *ctx,
                           GLenum face, GLenum pname, const GLfloat *params );



extern void gl_GetLightfv( GLcontext *ctx,
                           GLenum light, GLenum pname, GLfloat *params );

extern void gl_GetLightiv( GLcontext *ctx,
                           GLenum light, GLenum pname, GLint *params );


extern void gl_GetMaterialfv( GLcontext *ctx,
                              GLenum face, GLenum pname, GLfloat *params );

extern void gl_GetMaterialiv( GLcontext *ctx,
                              GLenum face, GLenum pname, GLint *params );


extern void gl_compute_spot_exp_table( struct gl_light *l );

extern void gl_compute_material_shine_table( struct gl_material *m );

extern void gl_update_lighting( GLcontext *ctx );



extern void gl_color_shade_vertices( GLcontext *ctx,
                                     GLuint n,
                                     GLfloat vertex[][4],
                                     GLfloat normal[][3],
                                     GLuint twoside,
                                     GLfixed frontcolor[][4],
                                     GLfixed backcolor[][4] );


extern void gl_color_shade_vertices_fast( GLcontext *ctx,
                                          GLuint n,
                                          GLfloat vertex[][4],
                                          GLfloat normal[][3],
                                          GLuint twoside,
                                          GLfixed frontcolor[][4],
                                          GLfixed backcolor[][4] );


extern void gl_index_shade_vertices( GLcontext *ctx,
                                     GLuint n,
                                     GLfloat vertex[][4],
                                     GLfloat normal[][3],
                                     GLuint twoside,
                                     GLuint frontindex[],
                                     GLuint backindex[] );

#endif

