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Amiga Plus 1997 #1
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Amiga Plus CD - 1997 - No. 01.iso
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programmierung
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mesa-1.2.8
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src
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clip.h
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1996-05-27
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/* clip.h */
/*
* Mesa 3-D graphics library
* Version: 1.2
* Copyright (C) 1995 Brian Paul (brianp@ssec.wisc.edu)
*
* 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.
*/
/*
* Line and polygon clipping.
*/
/*
$Id: clip.h,v 1.5 1995/10/14 17:41:29 brianp Exp $
$Log: clip.h,v $
* Revision 1.5 1995/10/14 17:41:29 brianp
* made glClipPlane display list-able
*
* Revision 1.4 1995/05/22 20:59:34 brianp
* Release 1.2
*
* Revision 1.3 1995/03/23 17:04:31 brianp
* added GL_VIEWCLIP_POINT macro
*
* Revision 1.2 1995/03/04 19:25:29 brianp
* 1.1 beta revision
*
* Revision 1.1 1995/02/24 14:18:12 brianp
* Initial revision
*
*/
#ifndef CLIP_H
#define CLIP_H
#include "GL/gl.h"
#include "config.h"
#ifdef DEBUG
# define GL_VIEWCLIP_POINT( V ) gl_viewclip_point( V )
#else
# define GL_VIEWCLIP_POINT( V ) \
( (V)[0] <= (V)[3] && (V)[0] >= -(V)[3] \
&& (V)[1] <= (V)[3] && (V)[1] >= -(V)[3] \
&& (V)[2] <= (V)[3] && (V)[2] >= -(V)[3] )
#endif
extern void gl_clipplane( GLenum plane, const float *equation );
extern GLuint gl_viewclip_point( const GLfloat v[] );
extern GLuint gl_viewclip_line( GLuint *i, GLuint *j );
extern GLuint gl_viewclip_polygon( GLuint n, GLuint vlist[] );
extern GLuint gl_userclip_point( const GLfloat v[] );
extern GLuint gl_userclip_line( GLuint *i, GLuint *j );
extern GLuint gl_userclip_polygon( GLuint n, GLuint vlist[] );
#endif