glxapi.h revision 01e04c3f 
1/*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26#ifndef _glxapi_h_
27#define _glxapi_h_
28
29
30#define GLX_GLXEXT_PROTOTYPES
31#include "GL/glx.h"
32
33
34/* The GLX API dispatcher (i.e. this code) is being built into stand-alone
35 * Mesa.  We don't know anything about XFree86 or real GLX so we define a
36 * minimal __GLXContextRec here so some of the functions in this file can
37 * work properly.
38 */
39typedef struct __GLXcontextRec {
40   GLboolean isDirect;
41   GLXDrawable currentDrawable;
42   GLXDrawable currentReadable;
43   XID xid;
44} __GLXcontext;
45
46
47/*
48 * Almost all the GLX API functions get routed through this dispatch table.
49 * The exceptions are the glXGetCurrentXXX() functions.
50 *
51 * This dispatch table allows multiple GLX client-side modules to coexist.
52 * Specifically, a real GLX library (like SGI's or the Utah GLX) and Mesa's
53 * pseudo-GLX can be present at the same time.  The former being used on
54 * GLX-enabled X servers and the later on non-GLX X servers.
55 *
56 * Red Hat has been using this since Red Hat Linux 7.0 (I think).
57 * This'll be a standard feature in XFree86 4.3.  It basically allows one
58 * libGL to do both DRI-rendering and "fake GLX" rendering to X displays
59 * that lack the GLX extension.
60 */
61struct _glxapi_table {
62   /*** GLX_VERSION_1_0 ***/
63   XVisualInfo *(*ChooseVisual)(Display *dpy, int screen, int *list);
64   void (*CopyContext)(Display *dpy, GLXContext src, GLXContext dst, unsigned long mask);
65   GLXContext (*CreateContext)(Display *dpy, XVisualInfo *visinfo, GLXContext shareList, Bool direct);
66   GLXPixmap (*CreateGLXPixmap)(Display *dpy, XVisualInfo *visinfo, Pixmap pixmap);
67   void (*DestroyContext)(Display *dpy, GLXContext ctx);
68   void (*DestroyGLXPixmap)(Display *dpy, GLXPixmap pixmap);
69   int (*GetConfig)(Display *dpy, XVisualInfo *visinfo, int attrib, int *value);
70   GLXContext (*GetCurrentContext)(void);
71   /*GLXDrawable (*GetCurrentDrawable)(void);*/
72   Bool (*IsDirect)(Display *dpy, GLXContext ctx);
73   Bool (*MakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
74   Bool (*QueryExtension)(Display *dpy, int *errorb, int *event);
75   Bool (*QueryVersion)(Display *dpy, int *maj, int *min);
76   void (*SwapBuffers)(Display *dpy, GLXDrawable drawable);
77   void (*UseXFont)(Font font, int first, int count, int listBase);
78   void (*WaitGL)(void);
79   void (*WaitX)(void);
80
81   /*** GLX_VERSION_1_1 ***/
82   const char *(*GetClientString)(Display *dpy, int name);
83   const char *(*QueryExtensionsString)(Display *dpy, int screen);
84   const char *(*QueryServerString)(Display *dpy, int screen, int name);
85
86   /*** GLX_VERSION_1_2 ***/
87   /*Display *(*GetCurrentDisplay)(void);*/
88
89   /*** GLX_VERSION_1_3 ***/
90   GLXFBConfig *(*ChooseFBConfig)(Display *dpy, int screen, const int *attribList, int *nitems);
91   GLXContext (*CreateNewContext)(Display *dpy, GLXFBConfig config, int renderType, GLXContext shareList, Bool direct);
92   GLXPbuffer (*CreatePbuffer)(Display *dpy, GLXFBConfig config, const int *attribList);
93   GLXPixmap (*CreatePixmap)(Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attribList);
94   GLXWindow (*CreateWindow)(Display *dpy, GLXFBConfig config, Window win, const int *attribList);
95   void (*DestroyPbuffer)(Display *dpy, GLXPbuffer pbuf);
96   void (*DestroyPixmap)(Display *dpy, GLXPixmap pixmap);
97   void (*DestroyWindow)(Display *dpy, GLXWindow window);
98   /*GLXDrawable (*GetCurrentReadDrawable)(void);*/
99   int (*GetFBConfigAttrib)(Display *dpy, GLXFBConfig config, int attribute, int *value);
100   GLXFBConfig *(*GetFBConfigs)(Display *dpy, int screen, int *nelements);
101   void (*GetSelectedEvent)(Display *dpy, GLXDrawable drawable, unsigned long *mask);
102   XVisualInfo *(*GetVisualFromFBConfig)(Display *dpy, GLXFBConfig config);
103   Bool (*MakeContextCurrent)(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
104   int (*QueryContext)(Display *dpy, GLXContext ctx, int attribute, int *value);
105   void (*QueryDrawable)(Display *dpy, GLXDrawable draw, int attribute, unsigned int *value);
106   void (*SelectEvent)(Display *dpy, GLXDrawable drawable, unsigned long mask);
107
108   /*** GLX_SGI_swap_control ***/
109   int (*SwapIntervalSGI)(int);
110
111   /*** GLX_SGI_video_sync ***/
112   int (*GetVideoSyncSGI)(unsigned int *count);
113   int (*WaitVideoSyncSGI)(int divisor, int remainder, unsigned int *count);
114
115   /*** GLX_SGI_make_current_read ***/
116   Bool (*MakeCurrentReadSGI)(Display *, GLXDrawable, GLXDrawable, GLXContext);
117   /*GLXDrawable (*GetCurrentReadDrawableSGI)(void);*/
118
119   /*** GLX_SGIX_video_source (needs video library) ***/
120#if defined(_VL_H_)
121   GLXVideoSourceSGIX (*CreateGLXVideoSourceSGIX)(Display *, int, VLServer, VLPath, int, VLNode);
122   void (*DestroyGLXVideoSourceSGIX)(Display *, GLXVideoSourceSGIX);
123#else
124   void *CreateGLXVideoSourceSGIX;
125   void *DestroyGLXVideoSourceSGIX;
126#endif
127
128   /*** GLX_EXT_import_context ***/
129   void (*FreeContextEXT)(Display *dpy, GLXContext context);
130   GLXContextID (*GetContextIDEXT)(const GLXContext context);
131   /*Display *(*GetCurrentDisplayEXT)(void);*/
132   GLXContext (*ImportContextEXT)(Display *dpy, GLXContextID contextID);
133   int (*QueryContextInfoEXT)(Display *dpy, GLXContext context, int attribute,int *value);
134
135   /*** GLX_SGIX_fbconfig ***/
136   int (*GetFBConfigAttribSGIX)(Display *, GLXFBConfigSGIX, int, int *);
137   GLXFBConfigSGIX * (*ChooseFBConfigSGIX)(Display *, int, int *, int *);
138   GLXPixmap (*CreateGLXPixmapWithConfigSGIX)(Display *, GLXFBConfigSGIX, Pixmap);
139   GLXContext (*CreateContextWithConfigSGIX)(Display *, GLXFBConfigSGIX, int, GLXContext, Bool);
140   XVisualInfo * (*GetVisualFromFBConfigSGIX)(Display *, GLXFBConfigSGIX);
141   GLXFBConfigSGIX (*GetFBConfigFromVisualSGIX)(Display *, XVisualInfo *);
142
143   /*** GLX_SGIX_pbuffer ***/
144   GLXPbufferSGIX (*CreateGLXPbufferSGIX)(Display *, GLXFBConfigSGIX, unsigned int, unsigned int, int *);
145   void (*DestroyGLXPbufferSGIX)(Display *, GLXPbufferSGIX);
146   int (*QueryGLXPbufferSGIX)(Display *, GLXPbufferSGIX, int, unsigned int *);
147   void (*SelectEventSGIX)(Display *, GLXDrawable, unsigned long);
148   void (*GetSelectedEventSGIX)(Display *, GLXDrawable, unsigned long *);
149
150   /*** GLX_SGI_cushion ***/
151   void (*CushionSGI)(Display *, Window, float);
152
153   /*** GLX_SGIX_video_resize ***/
154   int (*BindChannelToWindowSGIX)(Display *, int, int, Window);
155   int (*ChannelRectSGIX)(Display *, int, int, int, int, int, int);
156   int (*QueryChannelRectSGIX)(Display *, int, int, int *, int *, int *, int *);
157   int (*QueryChannelDeltasSGIX)(Display *, int, int, int *, int *, int *, int *);
158   int (*ChannelRectSyncSGIX)(Display *, int, int, GLenum);
159
160   /*** GLX_SGIX_dmbuffer (needs dmedia library) ***/
161#if defined (_DM_BUFFER_H_)
162   Bool (*AssociateDMPbufferSGIX)(Display *, GLXPbufferSGIX, DMparams *, DMbuffer);
163#else
164   void *AssociciateDMPbufferSGIX;
165#endif
166
167   /*** GLX_SUN_get_transparent_index ***/
168   Status (*GetTransparentIndexSUN)(Display *, Window, Window, long *);
169
170   /*** GLX_MESA_copy_sub_buffer ***/
171   void (*CopySubBufferMESA)(Display *dpy, GLXDrawable drawable, int x, int y, int width, int height);
172
173   /*** GLX_MESA_release_buffers ***/
174   Bool (*ReleaseBuffersMESA)(Display *dpy, Window w);
175
176   /*** GLX_MESA_pixmap_colormap ***/
177   GLXPixmap (*CreateGLXPixmapMESA)(Display *dpy, XVisualInfo *visinfo, Pixmap pixmap, Colormap cmap);
178
179   /*** GLX_EXT_texture_from_pixmap ***/
180   void (*BindTexImageEXT)(Display *dpy, GLXDrawable drawable, int buffer,
181                           const int *attrib_list);
182   void (*ReleaseTexImageEXT)(Display *dpy, GLXDrawable drawable, int buffer);
183
184   /*** GLX_ARB_create_context ***/
185   GLXContext (*CreateContextAttribs)(Display *dpy, GLXFBConfig config,
186                                      GLXContext share_context, Bool direct,
187                                      const int *attrib_list);
188};
189
190
191
192extern const char *
193_glxapi_get_version(void);
194
195
196extern const char **
197_glxapi_get_extensions(void);
198
199
200extern GLuint
201_glxapi_get_dispatch_table_size(void);
202
203
204extern void
205_glxapi_set_no_op_table(struct _glxapi_table *t);
206
207
208extern __GLXextFuncPtr
209_glxapi_get_proc_address(const char *funcName);
210
211
212#endif
213