1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/* $Id: depth.h,v 1.8 2000/04/11 20:42:22 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
*
* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef DEPTH_H
#define DEPTH_H
#include "types.h"
/*
* Immediate-mode API entrpoints
*/
extern void
_mesa_ClearDepth( GLclampd depth );
extern void
_mesa_DepthFunc( GLenum func );
extern void
_mesa_DepthMask( GLboolean flag );
/*
* Internal functions
*/
extern GLvoid *
_mesa_zbuffer_address(GLcontext *ctx, GLint x, GLint y);
extern GLuint
_mesa_depth_test_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLdepth z[], GLubyte mask[] );
extern void
_mesa_depth_test_pixels( GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLdepth z[], GLubyte mask[] );
extern void
_mesa_read_depth_span( GLcontext *ctx,
GLint n, GLint x, GLint y, GLdepth depth[] );
extern void
_mesa_read_depth_span_float( GLcontext *ctx, GLint n, GLint x, GLint y,
GLfloat depth[] );
extern void
_mesa_alloc_depth_buffer( GLcontext* ctx );
extern void
_mesa_clear_depth_buffer( GLcontext* ctx );
#endif
|
