glxclient.h revision 6e8897ff9f90601ebf6eed500ad942c11b54d1f7 
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#define NEED_REPLIES
41#define NEED_EVENTS
42#include <X11/Xproto.h>
43#include <X11/Xlibint.h>
44#include <X11/extensions/extutil.h>
45#define GLX_GLXEXT_PROTOTYPES
46#include <GL/glx.h>
47#include <GL/glxext.h>
48#include <string.h>
49#include <stdlib.h>
50#include <stdio.h>
51#ifdef WIN32
52#include <stdint.h>
53#endif
54#include "GL/glxint.h"
55#include "GL/glxproto.h"
56#include "GL/internal/glcore.h"
57#include "glapi/glapitable.h"
58#include "glxhash.h"
59#if defined( PTHREADS )
60# include <pthread.h>
61#endif
62
63#include "glxextensions.h"
64
65
66/* If we build the library with gcc's -fvisibility=hidden flag, we'll
67 * use the PUBLIC macro to mark functions that are to be exported.
68 *
69 * We also need to define a USED attribute, so the optimizer doesn't
70 * inline a static function that we later use in an alias. - ajax
71 */
72#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303
73#  define PUBLIC __attribute__((visibility("default")))
74#  define USED __attribute__((used))
75#else
76#  define PUBLIC
77#  define USED
78#endif
79
80
81
82#define GLX_MAJOR_VERSION 1       /* current version numbers */
83#define GLX_MINOR_VERSION 4
84
85#define __GLX_MAX_TEXTURE_UNITS 32
86
87typedef struct __GLXscreenConfigsRec __GLXscreenConfigs;
88typedef struct __GLXcontextRec __GLXcontext;
89typedef struct __GLXdrawableRec __GLXdrawable;
90typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate;
91typedef struct _glapi_table __GLapi;
92
93/************************************************************************/
94
95#ifdef GLX_DIRECT_RENDERING
96
97#define containerOf(ptr, type, member)              \
98    (type *)( (char *)ptr - offsetof(type,member) )
99
100#include <GL/internal/dri_interface.h>
101
102
103/**
104 * Display dependent methods.  This structure is initialized during the
105 * \c driCreateDisplay call.
106 */
107typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
108typedef struct __GLXDRIscreenRec __GLXDRIscreen;
109typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
110typedef struct __GLXDRIcontextRec __GLXDRIcontext;
111
112#include "glxextensions.h"
113
114struct __GLXDRIdisplayRec
115{
116    /**
117     * Method to destroy the private DRI display data.
118     */
119   void (*destroyDisplay) (__GLXDRIdisplay * display);
120
121   __GLXDRIscreen *(*createScreen) (__GLXscreenConfigs * psc, int screen,
122                                    __GLXdisplayPrivate * priv);
123};
124
125struct __GLXDRIscreenRec {
126
127   void (*destroyScreen)(__GLXscreenConfigs *psc);
128
129   __GLXDRIcontext *(*createContext)(__GLXscreenConfigs *psc,
130				     const __GLcontextModes *mode,
131				     GLXContext gc,
132				     GLXContext shareList, int renderType);
133
134   __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc,
135				       XID drawable,
136				       GLXDrawable glxDrawable,
137				       const __GLcontextModes *modes);
138
139   int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc,
140			  int64_t divisor, int64_t remainder);
141   void (*copySubBuffer)(__GLXDRIdrawable *pdraw,
142			 int x, int y, int width, int height);
143   void (*waitX)(__GLXDRIdrawable *pdraw);
144   void (*waitGL)(__GLXDRIdrawable *pdraw);
145   int (*getDrawableMSC)(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw,
146			 int64_t *ust, int64_t *msc, int64_t *sbc);
147   int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
148		     int64_t divisor, int64_t remainder, int64_t *ust,
149		     int64_t *msc, int64_t *sbc);
150   int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
151		     int64_t *msc, int64_t *sbc);
152   void (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
153   int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
154};
155
156struct __GLXDRIcontextRec
157{
158   void (*destroyContext) (__GLXDRIcontext * context,
159                           __GLXscreenConfigs * psc, Display * dpy);
160     Bool(*bindContext) (__GLXDRIcontext * context, __GLXDRIdrawable * pdraw,
161                         __GLXDRIdrawable * pread);
162
163   void (*unbindContext) (__GLXDRIcontext * context);
164};
165
166struct __GLXDRIdrawableRec
167{
168   void (*destroyDrawable) (__GLXDRIdrawable * drawable);
169
170   XID xDrawable;
171   XID drawable;
172   __GLXscreenConfigs *psc;
173   GLenum textureTarget;
174   __DRIdrawable *driDrawable;
175   GLenum textureFormat;        /* EXT_texture_from_pixmap support */
176};
177
178/*
179** Function to create and DRI display data and initialize the display
180** dependent methods.
181*/
182extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
183extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
184extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
185
186extern void DRI_glXUseXFont(Font font, int first, int count, int listbase);
187
188/*
189** Functions to obtain driver configuration information from a direct
190** rendering client application
191*/
192extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
193
194extern const char *glXGetDriverConfig(const char *driverName);
195
196#endif
197
198/************************************************************************/
199
200#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
201
202typedef struct __GLXpixelStoreModeRec
203{
204   GLboolean swapEndian;
205   GLboolean lsbFirst;
206   GLuint rowLength;
207   GLuint imageHeight;
208   GLuint imageDepth;
209   GLuint skipRows;
210   GLuint skipPixels;
211   GLuint skipImages;
212   GLuint alignment;
213} __GLXpixelStoreMode;
214
215
216typedef struct __GLXattributeRec
217{
218   GLuint mask;
219
220    /**
221     * Pixel storage state.  Most of the pixel store mode state is kept
222     * here and used by the client code to manage the packing and
223     * unpacking of data sent to/received from the server.
224     */
225   __GLXpixelStoreMode storePack, storeUnpack;
226
227    /**
228     * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
229     * disabled?
230     */
231   GLboolean NoDrawArraysProtocol;
232
233    /**
234     * Vertex Array storage state.  The vertex array component
235     * state is stored here and is used to manage the packing of
236     * DrawArrays data sent to the server.
237     */
238   struct array_state_vector *array_state;
239} __GLXattribute;
240
241typedef struct __GLXattributeMachineRec
242{
243   __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
244   __GLXattribute **stackPointer;
245} __GLXattributeMachine;
246
247/**
248 * GLX state that needs to be kept on the client.  One of these records
249 * exist for each context that has been made current by this client.
250 */
251struct __GLXcontextRec
252{
253    /**
254     * \name Drawing command buffer.
255     *
256     * Drawing commands are packed into this buffer before being sent as a
257     * single GLX protocol request.  The buffer is sent when it overflows or
258     * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
259     * in the buffer to be filled.  \c limit is described above in the buffer
260     * slop discussion.
261     *
262     * Commands that require large amounts of data to be transfered will
263     * also use this buffer to hold a header that describes the large
264     * command.
265     *
266     * These must be the first 6 fields since they are static initialized
267     * in the dummy context in glxext.c
268     */
269   /*@{ */
270   GLubyte *buf;
271   GLubyte *pc;
272   GLubyte *limit;
273   GLubyte *bufEnd;
274   GLint bufSize;
275   /*@} */
276
277    /**
278     * The XID of this rendering context.  When the context is created a
279     * new XID is allocated.  This is set to None when the context is
280     * destroyed but is still current to some thread. In this case the
281     * context will be freed on next MakeCurrent.
282     */
283   XID xid;
284
285    /**
286     * The XID of the \c shareList context.
287     */
288   XID share_xid;
289
290    /**
291     * Screen number.
292     */
293   GLint screen;
294   __GLXscreenConfigs *psc;
295
296    /**
297     * \c GL_TRUE if the context was created with ImportContext, which
298     * means the server-side context was created by another X client.
299     */
300   GLboolean imported;
301
302    /**
303     * The context tag returned by MakeCurrent when this context is made
304     * current. This tag is used to identify the context that a thread has
305     * current so that proper server context management can be done.  It is
306     * used for all context specific commands (i.e., \c Render, \c RenderLarge,
307     * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
308     * context)).
309     */
310   GLXContextTag currentContextTag;
311
312    /**
313     * \name Rendering mode
314     *
315     * The rendering mode is kept on the client as well as the server.
316     * When \c glRenderMode is called, the buffer associated with the
317     * previous rendering mode (feedback or select) is filled.
318     */
319   /*@{ */
320   GLenum renderMode;
321   GLfloat *feedbackBuf;
322   GLuint *selectBuf;
323   /*@} */
324
325    /**
326     * This is \c GL_TRUE if the pixel unpack modes are such that an image
327     * can be unpacked from the clients memory by just copying.  It may
328     * still be true that the server will have to do some work.  This
329     * just promises that a straight copy will fetch the correct bytes.
330     */
331   GLboolean fastImageUnpack;
332
333    /**
334     * Fill newImage with the unpacked form of \c oldImage getting it
335     * ready for transport to the server.
336     */
337   void (*fillImage) (__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
338                      GLenum, const GLvoid *, GLubyte *, GLubyte *);
339
340    /**
341     * Client side attribs.
342     */
343   __GLXattributeMachine attributes;
344
345    /**
346     * Client side error code.  This is set when client side gl API
347     * routines need to set an error because of a bad enumerant or
348     * running out of memory, etc.
349     */
350   GLenum error;
351
352    /**
353     * Whether this context does direct rendering.
354     */
355   Bool isDirect;
356
357    /**
358     * \c dpy of current display for this context.  Will be \c NULL if not
359     * current to any display, or if this is the "dummy context".
360     */
361   Display *currentDpy;
362
363    /**
364     * The current drawable for this context.  Will be None if this
365     * context is not current to any drawable.  currentReadable is below.
366     */
367   GLXDrawable currentDrawable;
368
369    /**
370     * \name GL Constant Strings
371     *
372     * Constant strings that describe the server implementation
373     * These pertain to GL attributes, not to be confused with
374     * GLX versioning attributes.
375     */
376   /*@{ */
377   GLubyte *vendor;
378   GLubyte *renderer;
379   GLubyte *version;
380   GLubyte *extensions;
381   /*@} */
382
383    /**
384     * Record the dpy this context was created on for later freeing
385     */
386   Display *createDpy;
387
388    /**
389     * Maximum small render command size.  This is the smaller of 64k and
390     * the size of the above buffer.
391     */
392   GLint maxSmallRenderCommandSize;
393
394    /**
395     * Major opcode for the extension.  Copied here so a lookup isn't
396     * needed.
397     */
398   GLint majorOpcode;
399
400    /**
401     * Pointer to the mode used to create this context.
402     */
403   const __GLcontextModes *mode;
404
405#ifdef GLX_DIRECT_RENDERING
406   __GLXDRIcontext *driContext;
407   __DRIcontext *__driContext;
408#endif
409
410    /**
411     * The current read-drawable for this context.  Will be None if this
412     * context is not current to any drawable.
413     *
414     * \since Internal API version 20030606.
415     */
416   GLXDrawable currentReadable;
417
418   /**
419    * Pointer to client-state data that is private to libGL.  This is only
420    * used for indirect rendering contexts.
421    *
422    * No internal API version change was made for this change.  Client-side
423    * drivers should NEVER use this data or even care that it exists.
424    */
425   void *client_state_private;
426
427   /**
428    * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
429    */
430   int renderType;
431
432   /**
433    * \name Raw server GL version
434    *
435    * True core GL version supported by the server.  This is the raw value
436    * returned by the server, and it may not reflect what is actually
437    * supported (or reported) by the client-side library.
438    */
439   /*@{ */
440   int server_major;        /**< Major version number. */
441   int server_minor;        /**< Minor version number. */
442   /*@} */
443
444   /**
445    * Thread ID we're currently current in. Zero if none.
446    */
447   unsigned long thread_id;
448
449   char gl_extension_bits[__GL_EXT_BYTES];
450};
451
452#define __glXSetError(gc,code)  \
453   if (!(gc)->error) {          \
454      (gc)->error = code;       \
455   }
456
457extern void __glFreeAttributeState(__GLXcontext *);
458
459/************************************************************************/
460
461/**
462 * The size of the largest drawing command known to the implementation
463 * that will use the GLXRender GLX command.  In this case it is
464 * \c glPolygonStipple.
465 */
466#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
467
468/**
469 * To keep the implementation fast, the code uses a "limit" pointer
470 * to determine when the drawing command buffer is too full to hold
471 * another fixed size command.  This constant defines the amount of
472 * space that must always be available in the drawing command buffer
473 * at all times for the implementation to work.  It is important that
474 * the number be just large enough, but not so large as to reduce the
475 * efficacy of the buffer.  The "+32" is just to keep the code working
476 * in case somebody counts wrong.
477 */
478#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
479
480/**
481 * This implementation uses a smaller threshold for switching
482 * to the RenderLarge protocol than the protcol requires so that
483 * large copies don't occur.
484 */
485#define __GLX_RENDER_CMD_SIZE_LIMIT 4096
486
487/**
488 * One of these records exists per screen of the display.  It contains
489 * a pointer to the config data for that screen (if the screen supports GL).
490 */
491struct __GLXscreenConfigsRec
492{
493    /**
494     * GLX extension string reported by the X-server.
495     */
496   const char *serverGLXexts;
497
498    /**
499     * GLX extension string to be reported to applications.  This is the
500     * set of extensions that the application can actually use.
501     */
502   char *effectiveGLXexts;
503
504#ifdef GLX_DIRECT_RENDERING
505    /**
506     * Per screen direct rendering interface functions and data.
507     */
508   __DRIscreen *__driScreen;
509   const __DRIcoreExtension *core;
510   const __DRIlegacyExtension *legacy;
511   const __DRIswrastExtension *swrast;
512   const __DRIdri2Extension *dri2;
513   __glxHashTable *drawHash;
514   Display *dpy;
515   int scr, fd;
516   void *driver;
517
518   __GLXDRIscreen *driScreen;
519
520   const __DRIconfig **driver_configs;
521
522#ifdef __DRI_COPY_SUB_BUFFER
523   const __DRIcopySubBufferExtension *driCopySubBuffer;
524#endif
525
526#ifdef __DRI_SWAP_CONTROL
527   const __DRIswapControlExtension *swapControl;
528#endif
529
530#ifdef __DRI_ALLOCATE
531   const __DRIallocateExtension *allocate;
532#endif
533
534#ifdef __DRI_FRAME_TRACKING
535   const __DRIframeTrackingExtension *frameTracking;
536#endif
537
538#ifdef __DRI_MEDIA_STREAM_COUNTER
539   const __DRImediaStreamCounterExtension *msc;
540#endif
541
542#ifdef __DRI_TEX_BUFFER
543   const __DRItexBufferExtension *texBuffer;
544#endif
545
546#ifdef __DRI2_FLUSH
547   const __DRI2flushExtension *f;
548#endif
549
550#endif
551
552    /**
553     * Linked list of glx visuals and  fbconfigs for this screen.
554     */
555   __GLcontextModes *visuals, *configs;
556
557    /**
558     * Per-screen dynamic GLX extension tracking.  The \c direct_support
559     * field only contains enough bits for 64 extensions.  Should libGL
560     * ever need to track more than 64 GLX extensions, we can safely grow
561     * this field.  The \c __GLXscreenConfigs structure is not used outside
562     * libGL.
563     */
564   /*@{ */
565   unsigned char direct_support[8];
566   GLboolean ext_list_first_time;
567   /*@} */
568
569};
570
571/**
572 * Per display private data.  One of these records exists for each display
573 * that is using the OpenGL (GLX) extension.
574 */
575struct __GLXdisplayPrivateRec
576{
577    /**
578     * Back pointer to the display
579     */
580   Display *dpy;
581
582    /**
583     * The \c majorOpcode is common to all connections to the same server.
584     * It is also copied into the context structure.
585     */
586   int majorOpcode;
587
588    /**
589     * \name Server Version
590     *
591     * Major and minor version returned by the server during initialization.
592     */
593   /*@{ */
594   int majorVersion, minorVersion;
595   /*@} */
596
597    /**
598     * \name Storage for the servers GLX vendor and versions strings.
599     *
600     * These are the same for all screens on this display. These fields will
601     * be filled in on demand.
602     */
603   /*@{ */
604   const char *serverGLXvendor;
605   const char *serverGLXversion;
606   /*@} */
607
608    /**
609     * Configurations of visuals for all screens on this display.
610     * Also, per screen data which now includes the server \c GLX_EXTENSION
611     * string.
612     */
613   __GLXscreenConfigs *screenConfigs;
614
615#ifdef GLX_DIRECT_RENDERING
616    /**
617     * Per display direct rendering interface functions and data.
618     */
619   __GLXDRIdisplay *driswDisplay;
620   __GLXDRIdisplay *driDisplay;
621   __GLXDRIdisplay *dri2Display;
622#endif
623};
624
625
626extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *);
627
628extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber,
629                                GLint totalRequests,
630                                const GLvoid * data, GLint dataLen);
631
632extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
633                                  const GLvoid *, GLint);
634
635/* Initialize the GLX extension for dpy */
636extern __GLXdisplayPrivate *__glXInitialize(Display *);
637
638extern void __glXPreferEGL(int state);
639
640/************************************************************************/
641
642extern int __glXDebug;
643
644/* This is per-thread storage in an MT environment */
645#if defined( PTHREADS )
646
647extern void __glXSetCurrentContext(__GLXcontext * c);
648
649# if defined( GLX_USE_TLS )
650
651extern __thread void *__glX_tls_Context
652   __attribute__ ((tls_model("initial-exec")));
653
654#  define __glXGetCurrentContext() __glX_tls_Context
655
656# else
657
658extern __GLXcontext *__glXGetCurrentContext(void);
659
660# endif /* defined( GLX_USE_TLS ) */
661
662#else
663
664extern __GLXcontext *__glXcurrentContext;
665#define __glXGetCurrentContext() __glXcurrentContext
666#define __glXSetCurrentContext(gc) __glXcurrentContext = gc
667
668#endif /* defined( PTHREADS ) */
669
670extern void __glXSetCurrentContextNull(void);
671
672extern void __glXFreeContext(__GLXcontext *);
673
674
675/*
676** Global lock for all threads in this address space using the GLX
677** extension
678*/
679#if defined( PTHREADS )
680extern pthread_mutex_t __glXmutex;
681#define __glXLock()    pthread_mutex_lock(&__glXmutex)
682#define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
683#else
684#define __glXLock()
685#define __glXUnlock()
686#endif
687
688/*
689** Setup for a command.  Initialize the extension for dpy if necessary.
690*/
691extern CARD8 __glXSetupForCommand(Display * dpy);
692
693/************************************************************************/
694
695/*
696** Data conversion and packing support.
697*/
698
699extern const GLuint __glXDefaultPixelStore[9];
700
701/* Send an image to the server using RenderLarge. */
702extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim,
703                                GLint width, GLint height, GLint depth,
704                                GLenum format, GLenum type,
705                                const GLvoid * src, GLubyte * pc,
706                                GLubyte * modes);
707
708/* Return the size, in bytes, of some pixel data */
709extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
710
711/* Return the number of elements per group of a specified format*/
712extern GLint __glElementsPerGroup(GLenum format, GLenum type);
713
714/* Return the number of bytes per element, based on the element type (other
715** than GL_BITMAP).
716*/
717extern GLint __glBytesPerElement(GLenum type);
718
719/*
720** Fill the transport buffer with the data from the users buffer,
721** applying some of the pixel store modes (unpack modes) to the data
722** first.  As a side effect of this call, the "modes" field is
723** updated to contain the modes needed by the server to decode the
724** sent data.
725*/
726extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
727                          GLenum, const GLvoid *, GLubyte *, GLubyte *);
728
729/* Copy map data with a stride into a packed buffer */
730extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
731extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
732extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
733                          const GLfloat *, GLfloat *);
734extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
735                          const GLdouble *, GLdouble *);
736
737/*
738** Empty an image out of the reply buffer into the clients memory applying
739** the pack modes to pack back into the clients requested format.
740*/
741extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
742                           GLenum, const GLubyte *, GLvoid *);
743
744
745/*
746** Allocate and Initialize Vertex Array client state, and free.
747*/
748extern void __glXInitVertexArrayState(__GLXcontext *);
749extern void __glXFreeVertexArrayState(__GLXcontext *);
750
751/*
752** Inform the Server of the major and minor numbers and of the client
753** libraries extension string.
754*/
755extern void __glXClientInfo(Display * dpy, int opcode);
756
757/************************************************************************/
758
759/*
760** Declarations that should be in Xlib
761*/
762#ifdef __GL_USE_OUR_PROTOTYPES
763extern void _XFlush(Display *);
764extern Status _XReply(Display *, xReply *, int, Bool);
765extern void _XRead(Display *, void *, long);
766extern void _XSend(Display *, const void *, long);
767#endif
768
769
770extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config,
771                                                int count, const INT32 * bp,
772                                                Bool tagged_only,
773                                                Bool fbconfig_style_tags);
774
775extern char *__glXQueryServerString(Display * dpy, int opcode,
776                                    CARD32 screen, CARD32 name);
777extern char *__glXGetString(Display * dpy, int opcode,
778                            CARD32 screen, CARD32 name);
779
780extern char *__glXstrdup(const char *str);
781
782
783extern const char __glXGLClientVersion[];
784extern const char __glXGLClientExtensions[];
785
786/* Get the unadjusted system time */
787extern int __glXGetUST(int64_t * ust);
788
789extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
790                                    int32_t * numerator,
791                                    int32_t * denominator);
792
793#ifdef GLX_DIRECT_RENDERING
794GLboolean
795__driGetMscRateOML(__DRIdrawable * draw,
796                   int32_t * numerator, int32_t * denominator, void *private);
797
798/* So that dri2.c:DRI2WireToEvent() can access
799 * glx_info->codes->first_event */
800XExtDisplayInfo *__glXFindDisplay (Display *dpy);
801#endif
802
803#endif /* !__GLX_client_h__ */
804