glxclient.h revision bab13969d8bf3ff9259524c3f4ab96d81485ccef 
1/*
2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice including the dates of first publication and
13 * either this permission notice or a reference to
14 * http://oss.sgi.com/projects/FreeB/
15 * shall be included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Except as contained in this notice, the name of Silicon Graphics, Inc.
26 * shall not be used in advertising or otherwise to promote the sale, use or
27 * other dealings in this Software without prior written authorization from
28 * Silicon Graphics, Inc.
29 */
30
31/**
32 * \file glxclient.h
33 * Direct rendering support added by Precision Insight, Inc.
34 *
35 * \author Kevin E. Martin <kevin@precisioninsight.com>
36 */
37
38#ifndef _GLX_client_h_
39#define _GLX_client_h_
40#include <X11/Xproto.h>
41#include <X11/Xlibint.h>
42#include <X11/extensions/extutil.h>
43#define GLX_GLXEXT_PROTOTYPES
44#include <GL/glx.h>
45#include <GL/glxext.h>
46#include <string.h>
47#include <stdlib.h>
48#include <stdio.h>
49#ifdef WIN32
50#include <stdint.h>
51#endif
52#include "GL/glxint.h"
53#include "GL/glxproto.h"
54#include "GL/internal/glcore.h"
55#include "glapi/glapitable.h"
56#include "glxhash.h"
57#if defined( PTHREADS )
58# include <pthread.h>
59#endif
60
61#include "glxextensions.h"
62
63
64/* If we build the library with gcc's -fvisibility=hidden flag, we'll
65 * use the PUBLIC macro to mark functions that are to be exported.
66 *
67 * We also need to define a USED attribute, so the optimizer doesn't
68 * inline a static function that we later use in an alias. - ajax
69 */
70#if defined(__GNUC__)
71#  define PUBLIC __attribute__((visibility("default")))
72#  define USED __attribute__((used))
73#else
74#  define PUBLIC
75#  define USED
76#endif
77
78
79
80#define GLX_MAJOR_VERSION 1       /* current version numbers */
81#define GLX_MINOR_VERSION 4
82
83#define __GLX_MAX_TEXTURE_UNITS 32
84
85typedef struct __GLXscreenConfigsRec __GLXscreenConfigs;
86typedef struct __GLXcontextRec __GLXcontext;
87typedef struct __GLXdrawableRec __GLXdrawable;
88typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate;
89typedef struct _glapi_table __GLapi;
90
91/************************************************************************/
92
93#ifdef GLX_DIRECT_RENDERING
94
95#define containerOf(ptr, type, member)              \
96    (type *)( (char *)ptr - offsetof(type,member) )
97
98extern void DRI_glXUseXFont(Font font, int first, int count, int listbase);
99
100#endif
101
102#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
103
104#include <GL/internal/dri_interface.h>
105
106/**
107 * Display dependent methods.  This structure is initialized during the
108 * \c driCreateDisplay call.
109 */
110typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
111typedef struct __GLXDRIscreenRec __GLXDRIscreen;
112typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
113typedef struct __GLXDRIcontextRec __GLXDRIcontext;
114
115#include "glxextensions.h"
116
117struct __GLXDRIdisplayRec
118{
119    /**
120     * Method to destroy the private DRI display data.
121     */
122   void (*destroyDisplay) (__GLXDRIdisplay * display);
123
124   __GLXscreenConfigs *(*createScreen)(int screen, __GLXdisplayPrivate * priv);
125};
126
127struct __GLXDRIscreenRec {
128
129   void (*destroyScreen)(__GLXscreenConfigs *psc);
130
131   __GLXDRIcontext *(*createContext)(__GLXscreenConfigs *psc,
132				     const __GLcontextModes *mode,
133				     GLXContext gc,
134				     GLXContext shareList, int renderType);
135
136   __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc,
137				       XID drawable,
138				       GLXDrawable glxDrawable,
139				       const __GLcontextModes *modes);
140
141   int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc,
142			  int64_t divisor, int64_t remainder);
143   void (*copySubBuffer)(__GLXDRIdrawable *pdraw,
144			 int x, int y, int width, int height);
145   void (*waitX)(__GLXDRIdrawable *pdraw);
146   void (*waitGL)(__GLXDRIdrawable *pdraw);
147   int (*getDrawableMSC)(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw,
148			 int64_t *ust, int64_t *msc, int64_t *sbc);
149   int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
150		     int64_t divisor, int64_t remainder, int64_t *ust,
151		     int64_t *msc, int64_t *sbc);
152   int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
153		     int64_t *msc, int64_t *sbc);
154   int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
155   int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
156};
157
158struct __GLXDRIcontextRec
159{
160   void (*destroyContext) (__GLXDRIcontext * context,
161                           __GLXscreenConfigs * psc, Display * dpy);
162     Bool(*bindContext) (__GLXDRIcontext * context, __GLXDRIdrawable * pdraw,
163                         __GLXDRIdrawable * pread);
164
165   void (*unbindContext) (__GLXDRIcontext * context);
166};
167
168struct __GLXDRIdrawableRec
169{
170   void (*destroyDrawable) (__GLXDRIdrawable * drawable);
171
172   XID xDrawable;
173   XID drawable;
174   __GLXscreenConfigs *psc;
175   GLenum textureTarget;
176   GLenum textureFormat;        /* EXT_texture_from_pixmap support */
177   unsigned long eventMask;
178};
179
180/*
181** Function to create and DRI display data and initialize the display
182** dependent methods.
183*/
184extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
185extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
186extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
187extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
188
189
190/*
191** Functions to obtain driver configuration information from a direct
192** rendering client application
193*/
194extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
195
196extern const char *glXGetDriverConfig(const char *driverName);
197
198#endif
199
200/************************************************************************/
201
202#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
203
204typedef struct __GLXpixelStoreModeRec
205{
206   GLboolean swapEndian;
207   GLboolean lsbFirst;
208   GLuint rowLength;
209   GLuint imageHeight;
210   GLuint imageDepth;
211   GLuint skipRows;
212   GLuint skipPixels;
213   GLuint skipImages;
214   GLuint alignment;
215} __GLXpixelStoreMode;
216
217
218typedef struct __GLXattributeRec
219{
220   GLuint mask;
221
222    /**
223     * Pixel storage state.  Most of the pixel store mode state is kept
224     * here and used by the client code to manage the packing and
225     * unpacking of data sent to/received from the server.
226     */
227   __GLXpixelStoreMode storePack, storeUnpack;
228
229    /**
230     * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
231     * disabled?
232     */
233   GLboolean NoDrawArraysProtocol;
234
235    /**
236     * Vertex Array storage state.  The vertex array component
237     * state is stored here and is used to manage the packing of
238     * DrawArrays data sent to the server.
239     */
240   struct array_state_vector *array_state;
241} __GLXattribute;
242
243typedef struct __GLXattributeMachineRec
244{
245   __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
246   __GLXattribute **stackPointer;
247} __GLXattributeMachine;
248
249struct glx_context_vtable {
250   void (*bind_tex_image)(Display * dpy,
251			  GLXDrawable drawable,
252			  int buffer, const int *attrib_list);
253   void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
254
255};
256
257/**
258 * GLX state that needs to be kept on the client.  One of these records
259 * exist for each context that has been made current by this client.
260 */
261struct __GLXcontextRec
262{
263    /**
264     * \name Drawing command buffer.
265     *
266     * Drawing commands are packed into this buffer before being sent as a
267     * single GLX protocol request.  The buffer is sent when it overflows or
268     * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
269     * in the buffer to be filled.  \c limit is described above in the buffer
270     * slop discussion.
271     *
272     * Commands that require large amounts of data to be transfered will
273     * also use this buffer to hold a header that describes the large
274     * command.
275     *
276     * These must be the first 6 fields since they are static initialized
277     * in the dummy context in glxext.c
278     */
279   /*@{ */
280   GLubyte *buf;
281   GLubyte *pc;
282   GLubyte *limit;
283   GLubyte *bufEnd;
284   GLint bufSize;
285   /*@} */
286
287    /**
288     * The XID of this rendering context.  When the context is created a
289     * new XID is allocated.  This is set to None when the context is
290     * destroyed but is still current to some thread. In this case the
291     * context will be freed on next MakeCurrent.
292     */
293   XID xid;
294
295    /**
296     * The XID of the \c shareList context.
297     */
298   XID share_xid;
299
300    /**
301     * Screen number.
302     */
303   GLint screen;
304   __GLXscreenConfigs *psc;
305
306    /**
307     * \c GL_TRUE if the context was created with ImportContext, which
308     * means the server-side context was created by another X client.
309     */
310   GLboolean imported;
311
312    /**
313     * The context tag returned by MakeCurrent when this context is made
314     * current. This tag is used to identify the context that a thread has
315     * current so that proper server context management can be done.  It is
316     * used for all context specific commands (i.e., \c Render, \c RenderLarge,
317     * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
318     * context)).
319     */
320   GLXContextTag currentContextTag;
321
322    /**
323     * \name Rendering mode
324     *
325     * The rendering mode is kept on the client as well as the server.
326     * When \c glRenderMode is called, the buffer associated with the
327     * previous rendering mode (feedback or select) is filled.
328     */
329   /*@{ */
330   GLenum renderMode;
331   GLfloat *feedbackBuf;
332   GLuint *selectBuf;
333   /*@} */
334
335    /**
336     * This is \c GL_TRUE if the pixel unpack modes are such that an image
337     * can be unpacked from the clients memory by just copying.  It may
338     * still be true that the server will have to do some work.  This
339     * just promises that a straight copy will fetch the correct bytes.
340     */
341   GLboolean fastImageUnpack;
342
343    /**
344     * Fill newImage with the unpacked form of \c oldImage getting it
345     * ready for transport to the server.
346     */
347   void (*fillImage) (__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
348                      GLenum, const GLvoid *, GLubyte *, GLubyte *);
349
350    /**
351     * Client side attribs.
352     */
353   __GLXattributeMachine attributes;
354
355    /**
356     * Client side error code.  This is set when client side gl API
357     * routines need to set an error because of a bad enumerant or
358     * running out of memory, etc.
359     */
360   GLenum error;
361
362    /**
363     * Whether this context does direct rendering.
364     */
365   Bool isDirect;
366
367    /**
368     * \c dpy of current display for this context.  Will be \c NULL if not
369     * current to any display, or if this is the "dummy context".
370     */
371   Display *currentDpy;
372
373    /**
374     * The current drawable for this context.  Will be None if this
375     * context is not current to any drawable.  currentReadable is below.
376     */
377   GLXDrawable currentDrawable;
378
379    /**
380     * \name GL Constant Strings
381     *
382     * Constant strings that describe the server implementation
383     * These pertain to GL attributes, not to be confused with
384     * GLX versioning attributes.
385     */
386   /*@{ */
387   GLubyte *vendor;
388   GLubyte *renderer;
389   GLubyte *version;
390   GLubyte *extensions;
391   /*@} */
392
393    /**
394     * Record the dpy this context was created on for later freeing
395     */
396   Display *createDpy;
397
398    /**
399     * Maximum small render command size.  This is the smaller of 64k and
400     * the size of the above buffer.
401     */
402   GLint maxSmallRenderCommandSize;
403
404    /**
405     * Major opcode for the extension.  Copied here so a lookup isn't
406     * needed.
407     */
408   GLint majorOpcode;
409
410    /**
411     * Pointer to the mode used to create this context.
412     */
413   const __GLcontextModes *mode;
414
415#ifdef GLX_DIRECT_RENDERING
416#ifdef GLX_USE_APPLEGL
417   void *driContext;
418   Bool do_destroy;
419#else
420   __GLXDRIcontext *driContext;
421   __DRIcontext *__driContext;
422#endif
423#endif
424
425    /**
426     * The current read-drawable for this context.  Will be None if this
427     * context is not current to any drawable.
428     *
429     * \since Internal API version 20030606.
430     */
431   GLXDrawable currentReadable;
432
433   /**
434    * Pointer to client-state data that is private to libGL.  This is only
435    * used for indirect rendering contexts.
436    *
437    * No internal API version change was made for this change.  Client-side
438    * drivers should NEVER use this data or even care that it exists.
439    */
440   void *client_state_private;
441
442   /**
443    * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
444    */
445   int renderType;
446
447   /**
448    * \name Raw server GL version
449    *
450    * True core GL version supported by the server.  This is the raw value
451    * returned by the server, and it may not reflect what is actually
452    * supported (or reported) by the client-side library.
453    */
454   /*@{ */
455   int server_major;        /**< Major version number. */
456   int server_minor;        /**< Minor version number. */
457   /*@} */
458
459   /**
460    * Thread ID we're currently current in. Zero if none.
461    */
462   unsigned long thread_id;
463
464   char gl_extension_bits[__GL_EXT_BYTES];
465
466   const struct glx_context_vtable *vtable;
467};
468
469#define __glXSetError(gc,code)  \
470   if (!(gc)->error) {          \
471      (gc)->error = code;       \
472   }
473
474extern void __glFreeAttributeState(__GLXcontext *);
475
476/************************************************************************/
477
478/**
479 * The size of the largest drawing command known to the implementation
480 * that will use the GLXRender GLX command.  In this case it is
481 * \c glPolygonStipple.
482 */
483#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
484
485/**
486 * To keep the implementation fast, the code uses a "limit" pointer
487 * to determine when the drawing command buffer is too full to hold
488 * another fixed size command.  This constant defines the amount of
489 * space that must always be available in the drawing command buffer
490 * at all times for the implementation to work.  It is important that
491 * the number be just large enough, but not so large as to reduce the
492 * efficacy of the buffer.  The "+32" is just to keep the code working
493 * in case somebody counts wrong.
494 */
495#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
496
497/**
498 * This implementation uses a smaller threshold for switching
499 * to the RenderLarge protocol than the protcol requires so that
500 * large copies don't occur.
501 */
502#define __GLX_RENDER_CMD_SIZE_LIMIT 4096
503
504/**
505 * One of these records exists per screen of the display.  It contains
506 * a pointer to the config data for that screen (if the screen supports GL).
507 */
508struct __GLXscreenConfigsRec
509{
510    /**
511     * GLX extension string reported by the X-server.
512     */
513   const char *serverGLXexts;
514
515    /**
516     * GLX extension string to be reported to applications.  This is the
517     * set of extensions that the application can actually use.
518     */
519   char *effectiveGLXexts;
520
521   /**
522    * Context vtable to use for direct contexts on this screen
523    */
524   const struct glx_context_vtable *direct_context_vtable;
525
526   __GLXdisplayPrivate *display;
527
528#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
529    /**
530     * Per screen direct rendering interface functions and data.
531     */
532   Display *dpy;
533   int scr;
534
535   __GLXDRIscreen *driScreen;
536
537#ifdef __DRI_COPY_SUB_BUFFER
538   const __DRIcopySubBufferExtension *driCopySubBuffer;
539#endif
540
541#endif
542
543    /**
544     * Linked list of glx visuals and  fbconfigs for this screen.
545     */
546   __GLcontextModes *visuals, *configs;
547
548    /**
549     * Per-screen dynamic GLX extension tracking.  The \c direct_support
550     * field only contains enough bits for 64 extensions.  Should libGL
551     * ever need to track more than 64 GLX extensions, we can safely grow
552     * this field.  The \c __GLXscreenConfigs structure is not used outside
553     * libGL.
554     */
555   /*@{ */
556   unsigned char direct_support[8];
557   GLboolean ext_list_first_time;
558   /*@} */
559
560};
561
562/**
563 * Per display private data.  One of these records exists for each display
564 * that is using the OpenGL (GLX) extension.
565 */
566struct __GLXdisplayPrivateRec
567{
568    /**
569     * Back pointer to the display
570     */
571   Display *dpy;
572
573    /**
574     * The \c majorOpcode is common to all connections to the same server.
575     * It is also copied into the context structure.
576     */
577   int majorOpcode;
578
579    /**
580     * \name Server Version
581     *
582     * Major and minor version returned by the server during initialization.
583     */
584   /*@{ */
585   int majorVersion, minorVersion;
586   /*@} */
587
588    /**
589     * \name Storage for the servers GLX vendor and versions strings.
590     *
591     * These are the same for all screens on this display. These fields will
592     * be filled in on demand.
593     */
594   /*@{ */
595   const char *serverGLXvendor;
596   const char *serverGLXversion;
597   /*@} */
598
599    /**
600     * Configurations of visuals for all screens on this display.
601     * Also, per screen data which now includes the server \c GLX_EXTENSION
602     * string.
603     */
604   __GLXscreenConfigs **screenConfigs;
605
606#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
607   __glxHashTable *drawHash;
608
609    /**
610     * Per display direct rendering interface functions and data.
611     */
612   __GLXDRIdisplay *driswDisplay;
613   __GLXDRIdisplay *driDisplay;
614   __GLXDRIdisplay *dri2Display;
615#endif
616};
617
618extern int
619glx_screen_init(__GLXscreenConfigs *psc,
620		int screen, __GLXdisplayPrivate * priv);
621
622extern __GLXDRIdrawable *
623dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
624
625extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *);
626
627extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber,
628                                GLint totalRequests,
629                                const GLvoid * data, GLint dataLen);
630
631extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
632                                  const GLvoid *, GLint);
633
634/* Initialize the GLX extension for dpy */
635extern __GLXdisplayPrivate *__glXInitialize(Display *);
636
637extern void __glXPreferEGL(int state);
638
639/************************************************************************/
640
641extern int __glXDebug;
642
643/* This is per-thread storage in an MT environment */
644#if defined( PTHREADS )
645
646extern void __glXSetCurrentContext(__GLXcontext * c);
647
648# if defined( GLX_USE_TLS )
649
650extern __thread void *__glX_tls_Context
651   __attribute__ ((tls_model("initial-exec")));
652
653#  define __glXGetCurrentContext() __glX_tls_Context
654
655# else
656
657extern __GLXcontext *__glXGetCurrentContext(void);
658
659# endif /* defined( GLX_USE_TLS ) */
660
661#else
662
663extern __GLXcontext *__glXcurrentContext;
664#define __glXGetCurrentContext() __glXcurrentContext
665#define __glXSetCurrentContext(gc) __glXcurrentContext = gc
666
667#endif /* defined( PTHREADS ) */
668
669extern void __glXSetCurrentContextNull(void);
670
671extern void __glXFreeContext(__GLXcontext *);
672
673
674/*
675** Global lock for all threads in this address space using the GLX
676** extension
677*/
678#if defined( PTHREADS )
679extern pthread_mutex_t __glXmutex;
680#define __glXLock()    pthread_mutex_lock(&__glXmutex)
681#define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
682#else
683#define __glXLock()
684#define __glXUnlock()
685#endif
686
687/*
688** Setup for a command.  Initialize the extension for dpy if necessary.
689*/
690extern CARD8 __glXSetupForCommand(Display * dpy);
691
692/************************************************************************/
693
694/*
695** Data conversion and packing support.
696*/
697
698extern const GLuint __glXDefaultPixelStore[9];
699
700/* Send an image to the server using RenderLarge. */
701extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim,
702                                GLint width, GLint height, GLint depth,
703                                GLenum format, GLenum type,
704                                const GLvoid * src, GLubyte * pc,
705                                GLubyte * modes);
706
707/* Return the size, in bytes, of some pixel data */
708extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
709
710/* Return the number of elements per group of a specified format*/
711extern GLint __glElementsPerGroup(GLenum format, GLenum type);
712
713/* Return the number of bytes per element, based on the element type (other
714** than GL_BITMAP).
715*/
716extern GLint __glBytesPerElement(GLenum type);
717
718/*
719** Fill the transport buffer with the data from the users buffer,
720** applying some of the pixel store modes (unpack modes) to the data
721** first.  As a side effect of this call, the "modes" field is
722** updated to contain the modes needed by the server to decode the
723** sent data.
724*/
725extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
726                          GLenum, const GLvoid *, GLubyte *, GLubyte *);
727
728/* Copy map data with a stride into a packed buffer */
729extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
730extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
731extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
732                          const GLfloat *, GLfloat *);
733extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
734                          const GLdouble *, GLdouble *);
735
736/*
737** Empty an image out of the reply buffer into the clients memory applying
738** the pack modes to pack back into the clients requested format.
739*/
740extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
741                           GLenum, const GLubyte *, GLvoid *);
742
743
744/*
745** Allocate and Initialize Vertex Array client state, and free.
746*/
747extern void __glXInitVertexArrayState(__GLXcontext *);
748extern void __glXFreeVertexArrayState(__GLXcontext *);
749
750/*
751** Inform the Server of the major and minor numbers and of the client
752** libraries extension string.
753*/
754extern void __glXClientInfo(Display * dpy, int opcode);
755
756/************************************************************************/
757
758/*
759** Declarations that should be in Xlib
760*/
761#ifdef __GL_USE_OUR_PROTOTYPES
762extern void _XFlush(Display *);
763extern Status _XReply(Display *, xReply *, int, Bool);
764extern void _XRead(Display *, void *, long);
765extern void _XSend(Display *, const void *, long);
766#endif
767
768
769extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config,
770                                                int count, const INT32 * bp,
771                                                Bool tagged_only,
772                                                Bool fbconfig_style_tags);
773
774extern char *__glXQueryServerString(Display * dpy, int opcode,
775                                    CARD32 screen, CARD32 name);
776extern char *__glXGetString(Display * dpy, int opcode,
777                            CARD32 screen, CARD32 name);
778
779extern char *__glXstrdup(const char *str);
780
781
782extern const char __glXGLClientVersion[];
783extern const char __glXGLClientExtensions[];
784
785/* Get the unadjusted system time */
786extern int __glXGetUST(int64_t * ust);
787
788extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
789                                    int32_t * numerator,
790                                    int32_t * denominator);
791
792#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
793GLboolean
794__driGetMscRateOML(__DRIdrawable * draw,
795                   int32_t * numerator, int32_t * denominator, void *private);
796
797/* So that dri2.c:DRI2WireToEvent() can access
798 * glx_info->codes->first_event */
799XExtDisplayInfo *__glXFindDisplay (Display *dpy);
800
801extern __GLXDRIdrawable *
802GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable, int *const scrn_num);
803
804#endif
805
806#endif /* !__GLX_client_h__ */
807