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depth.h
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1 /* $Id: depth.h,v 1.2 1996/09/15 14:19:16 brianp Exp $ */
2 
3 /*
4  * Mesa 3-D graphics library
5  * Version: 2.0
6  * Copyright (C) 1995-1996 Brian Paul
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public
19  * License along with this library; if not, write to the Free
20  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21  */
22 
23 
24 /*
25  * $Log: depth.h,v $
26  * Revision 1.2 1996/09/15 14:19:16 brianp
27  * now use GLframebuffer and GLvisual
28  *
29  * Revision 1.1 1996/09/13 01:38:16 brianp
30  * Initial revision
31  *
32  */
33 
34 
35 #ifndef DEPTH_H
36 #define DEPTH_H
37 
38 
39 #include "types.h"
40 
41 
42 /*
43  * Return the address of the Z-buffer value for window coordinate (x,y):
44  */
45 #define Z_ADDRESS( CTX, X, Y ) \
46  ((CTX)->Buffer->Depth + (CTX)->Buffer->Width * (Y) + (X))
47 
48 
49 
50 
51 extern GLuint
53  const GLdepth z[], GLubyte mask[] );
54 
55 extern GLuint
57  const GLdepth z[], GLubyte mask[] );
58 
59 extern GLuint
61  const GLdepth z[], GLubyte mask[] );
62 
63 
64 
65 extern void
67  GLuint n, const GLint x[], const GLint y[],
68  const GLdepth z[], GLubyte mask[] );
69 
70 extern void
72  GLuint n, const GLint x[], const GLint y[],
73  const GLdepth z[], GLubyte mask[] );
74 
75 extern void
77  GLuint n, const GLint x[], const GLint y[],
78  const GLdepth z[], GLubyte mask[] );
79 
80 
81 extern void gl_read_depth_span_float( GLcontext* ctx,
82  GLuint n, GLint x, GLint y,
83  GLfloat depth[] );
84 
85 
86 extern void gl_read_depth_span_int( GLcontext* ctx, GLuint n, GLint x, GLint y,
87  GLdepth depth[] );
88 
89 
90 extern void gl_alloc_depth_buffer( GLcontext* ctx );
91 
92 
93 extern void gl_clear_depth_buffer( GLcontext* ctx );
94 
95 
96 extern void gl_ClearDepth( GLcontext* ctx, GLclampd depth );
97 extern void gl_DepthFunc( GLcontext* ctx, GLenum func );
98 extern void gl_DepthMask( GLcontext* ctx, GLboolean flag );
99 extern void gl_DepthRange( GLcontext* ctx, GLclampd nearval, GLclampd farval );
100 
101 #endif
GLenum func
Definition: glext.h:6028
void gl_alloc_depth_buffer(GLcontext *ctx)
Definition: depth.c:848
unsigned char GLubyte
Definition: gl.h:157
GLuint gl_depth_test_span_less(GLcontext *ctx, GLuint n, GLint x, GLint y, const GLdepth z[], GLubyte mask[])
Definition: depth.c:419
GLdouble n
Definition: glext.h:7729
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
void gl_depth_test_pixels_less(GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLdepth z[], GLubyte mask[])
Definition: depth.c:726
GLuint gl_depth_test_span_greater(GLcontext *ctx, GLuint n, GLint x, GLint y, const GLdepth z[], GLubyte mask[])
Definition: depth.c:447
GLuint gl_depth_test_span_generic(GLcontext *ctx, GLuint n, GLint x, GLint y, const GLdepth z[], GLubyte mask[])
Definition: depth.c:193
GLenum GLint GLuint mask
Definition: glext.h:6028
unsigned char GLboolean
Definition: gl.h:151
void gl_clear_depth_buffer(GLcontext *ctx)
Definition: depth.c:875
GLdouble GLdouble z
Definition: glext.h:5874
double GLclampd
Definition: gl.h:164
void gl_DepthRange(GLcontext *ctx, GLclampd nearval, GLclampd farval)
Definition: depth.c:141
GLint GLdepth
Definition: types.h:218
void gl_depth_test_pixels_generic(GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLdepth z[], GLubyte mask[])
Definition: depth.c:489
void gl_DepthMask(GLcontext *ctx, GLboolean flag)
Definition: depth.c:124
GLint GLint GLsizei GLsizei GLsizei depth
Definition: gl.h:1546
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean flag
Definition: glfuncs.h:52
unsigned int GLenum
Definition: gl.h:150
unsigned int GLuint
Definition: gl.h:159
GLint GLint GLint GLint GLint GLint y
Definition: gl.h:1548
float GLfloat
Definition: gl.h:161
void gl_read_depth_span_int(GLcontext *ctx, GLuint n, GLint x, GLint y, GLdepth depth[])
Definition: depth.c:820
void gl_ClearDepth(GLcontext *ctx, GLclampd depth)
Definition: depth.c:87
int GLint
Definition: gl.h:156
void gl_depth_test_pixels_greater(GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLdepth z[], GLubyte mask[])
Definition: depth.c:752
void gl_DepthFunc(GLcontext *ctx, GLenum func)
Definition: depth.c:98
void gl_read_depth_span_float(GLcontext *ctx, GLuint n, GLint x, GLint y, GLfloat depth[])
Definition: depth.c:789