home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Amiga Plus 1997 #1
/
Amiga Plus CD - 1997 - No. 01.iso
/
pd
/
programmierung
/
mesa-1.2.8
/
src
/
depth.h
< prev
next >
Wrap
C/C++ Source or Header
|
1996-05-27
|
2KB
|
94 lines
/* depth.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.
*/
/*
$Id: depth.h,v 1.8 1996/05/01 15:47:48 brianp Exp $
$Log: depth.h,v $
* Revision 1.8 1996/05/01 15:47:48 brianp
* added gl_read_depth_span_int()
*
* Revision 1.7 1996/01/12 22:30:38 brianp
* added Z_ADDRESS() macro
*
* Revision 1.6 1995/12/18 17:25:20 brianp
* use new GLdepth datatype
*
* Revision 1.5 1995/06/09 20:20:50 brianp
* renamed gl_depth_test() as gl_depth_test_span() and return 'passed' count
*
* Revision 1.4 1995/05/22 20:59:34 brianp
* Release 1.2
*
* Revision 1.3 1995/03/04 19:25:29 brianp
* 1.1 beta revision
*
* Revision 1.2 1995/02/27 22:48:41 brianp
* modified for PB
*
* Revision 1.1 1995/02/24 14:20:31 brianp
* Initial revision
*
*/
#ifndef DEPTH_H
#define DEPTH_H
#include "GL/gl.h"
/*
* Return the address of the Z-buffer value for window coordinate (x,y):
*/
#define Z_ADDRESS( X, Y ) (CC.DepthBuffer + CC.BufferWidth * (Y) + (X))
extern GLuint gl_depth_test_span( GLuint n, GLint x, GLint y,
const GLdepth z[], GLubyte mask[] );
extern void gl_depth_test_pixels( GLuint n, const GLint x[], const GLint y[],
const GLdepth z[], GLubyte mask[] );
extern void gl_read_depth_span_float( GLuint n, GLint x, GLint y,
GLfloat depth[] );
extern void gl_read_depth_span_int( GLuint n, GLint x, GLint y,
GLdepth depth[] );
extern void gl_alloc_depth_buffer( void );
extern void gl_clear_depth_buffer( void );
#endif