summaryrefslogtreecommitdiff
path: root/xserver/glx/glxcontext.h
blob: 18d3c6fe5c0efc3a48687372d5bcadeeec6d58c5 (plain)
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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#ifndef _GLX_context_h_
#define _GLX_context_h_

/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 1.1 (the "License"), the contents of this
** file are subject only to the provisions of the License. You may not use
** this file except in compliance with the License. You may obtain a copy
** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
** 
** http://oss.sgi.com/projects/FreeB
** 
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
** 
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
** 
** Additional Notice Provisions: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. This software
** was created using the OpenGL(R) version 1.2.1 Sample Implementation
** published by SGI, but has not been independently verified as being
** compliant with the OpenGL(R) version 1.2.1 Specification.
**
*/

typedef struct __GLXtextureFromPixmap __GLXtextureFromPixmap;
struct __GLXtextureFromPixmap {
    int (*bindTexImage)		(__GLXcontext  *baseContext,
				 int            buffer,
				 __GLXdrawable *pixmap);
    int (*releaseTexImage)	(__GLXcontext  *baseContext,
				 int            buffer,
				 __GLXdrawable *pixmap);
};


struct __GLXcontext {
    void           (*destroy)       (__GLXcontext *context);
    int            (*makeCurrent)   (__GLXcontext *context);
    int            (*loseCurrent)   (__GLXcontext *context);
    int            (*copy)          (__GLXcontext *dst,
				     __GLXcontext *src,
				     unsigned long mask);
    int            (*forceCurrent)  (__GLXcontext *context);

    __GLXtextureFromPixmap *textureFromPixmap;

    /*
    ** list of context structs
    */
    __GLXcontext *last;
    __GLXcontext *next;

    /*
    ** list of contexts bound to the same drawable
    */
    __GLXcontext *nextDrawPriv;
    __GLXcontext *nextReadPriv;

    /*
    ** config struct for this context
    */
    __GLXconfig *config;

    /*
    ** Pointer to screen info data for this context.  This is set
    ** when the context is created.
    */
    __GLXscreen *pGlxScreen;

    /*
    ** The XID of this context.
    */
    XID id;

    /*
    ** The XID of the shareList context.
    */
    XID share_id;

    /*
    ** screen number.
    */
    GLint screen;

    /*
    ** Whether this context's ID still exists.
    */
    GLboolean idExists;
    
    /*
    ** Whether this context is current for some client.
    */
    GLboolean isCurrent;
    
    /*
    ** Whether this context is a direct rendering context.
    */
    GLboolean isDirect;

    /*
    ** This flag keeps track of whether there are unflushed GL commands.
    */
    GLboolean hasUnflushedCommands;
    
    /*
    ** Current rendering mode for this context.
    */
    GLenum renderMode;
    
    /*
    ** Buffers for feedback and selection.
    */
    GLfloat *feedbackBuf;
    GLint feedbackBufSize;	/* number of elements allocated */
    GLuint *selectBuf;
    GLint selectBufSize;	/* number of elements allocated */

    /*
    ** The drawable private this context is bound to
    */
    __GLXdrawable *drawPriv;
    __GLXdrawable *readPriv;
};

/* pending state defines */
#define __GLX_PENDING_RESIZE	0x1
#define	__GLX_PENDING_DESTROY	0x2
#define __GLX_PENDING_SWAP	0x4

void __glXContextDestroy(__GLXcontext *context);

#endif /* !__GLX_context_h__ */