glxclient.h revision eeaab2047cfce8a7445fd9f835e737682eb503ac 
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(GLXContext CC,
99			    Font font, int first, int count, int listbase);
100
101#endif
102
103#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
104
105/**
106 * Display dependent methods.  This structure is initialized during the
107 * \c driCreateDisplay call.
108 */
109typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
110typedef struct __GLXDRIscreenRec __GLXDRIscreen;
111typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
112typedef struct __GLXDRIcontextRec __GLXDRIcontext;
113
114#include "glxextensions.h"
115
116struct __GLXDRIdisplayRec
117{
118    /**
119     * Method to destroy the private DRI display data.
120     */
121   void (*destroyDisplay) (__GLXDRIdisplay * display);
122
123   __GLXscreenConfigs *(*createScreen)(int screen, __GLXdisplayPrivate * priv);
124};
125
126struct __GLXDRIscreenRec {
127
128   void (*destroyScreen)(__GLXscreenConfigs *psc);
129
130   __GLXcontext *(*createContext)(__GLXscreenConfigs *psc,
131				  const __GLcontextModes *mode,
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   int (*getDrawableMSC)(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw,
144			 int64_t *ust, int64_t *msc, int64_t *sbc);
145   int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
146		     int64_t divisor, int64_t remainder, int64_t *ust,
147		     int64_t *msc, int64_t *sbc);
148   int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
149		     int64_t *msc, int64_t *sbc);
150   int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
151   int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
152};
153
154struct __GLXDRIcontextRec
155{
156   void (*destroyContext) (__GLXcontext *context);
157   Bool(*bindContext) (__GLXcontext *context, __GLXDRIdrawable *pdraw,
158		       __GLXDRIdrawable *pread);
159   void (*unbindContext) (__GLXcontext *context);
160};
161
162struct __GLXDRIdrawableRec
163{
164   void (*destroyDrawable) (__GLXDRIdrawable * drawable);
165
166   XID xDrawable;
167   XID drawable;
168   __GLXscreenConfigs *psc;
169   GLenum textureTarget;
170   GLenum textureFormat;        /* EXT_texture_from_pixmap support */
171   unsigned long eventMask;
172};
173
174/*
175** Function to create and DRI display data and initialize the display
176** dependent methods.
177*/
178extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
179extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
180extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
181extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
182
183
184/*
185** Functions to obtain driver configuration information from a direct
186** rendering client application
187*/
188extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
189
190extern const char *glXGetDriverConfig(const char *driverName);
191
192#endif
193
194/************************************************************************/
195
196#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
197
198typedef struct __GLXpixelStoreModeRec
199{
200   GLboolean swapEndian;
201   GLboolean lsbFirst;
202   GLuint rowLength;
203   GLuint imageHeight;
204   GLuint imageDepth;
205   GLuint skipRows;
206   GLuint skipPixels;
207   GLuint skipImages;
208   GLuint alignment;
209} __GLXpixelStoreMode;
210
211
212typedef struct __GLXattributeRec
213{
214   GLuint mask;
215
216    /**
217     * Pixel storage state.  Most of the pixel store mode state is kept
218     * here and used by the client code to manage the packing and
219     * unpacking of data sent to/received from the server.
220     */
221   __GLXpixelStoreMode storePack, storeUnpack;
222
223    /**
224     * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
225     * disabled?
226     */
227   GLboolean NoDrawArraysProtocol;
228
229    /**
230     * Vertex Array storage state.  The vertex array component
231     * state is stored here and is used to manage the packing of
232     * DrawArrays data sent to the server.
233     */
234   struct array_state_vector *array_state;
235} __GLXattribute;
236
237typedef struct __GLXattributeMachineRec
238{
239   __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
240   __GLXattribute **stackPointer;
241} __GLXattributeMachine;
242
243struct glx_context_vtable {
244   void (*wait_gl)(__GLXcontext *ctx);
245   void (*wait_x)(__GLXcontext *ctx);
246   void (*use_x_font)(__GLXcontext *ctx,
247		      Font font, int first, int count, int listBase);
248   void (*bind_tex_image)(Display * dpy,
249			  GLXDrawable drawable,
250			  int buffer, const int *attrib_list);
251   void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
252
253};
254
255/**
256 * GLX state that needs to be kept on the client.  One of these records
257 * exist for each context that has been made current by this client.
258 */
259struct __GLXcontextRec
260{
261    /**
262     * \name Drawing command buffer.
263     *
264     * Drawing commands are packed into this buffer before being sent as a
265     * single GLX protocol request.  The buffer is sent when it overflows or
266     * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
267     * in the buffer to be filled.  \c limit is described above in the buffer
268     * slop discussion.
269     *
270     * Commands that require large amounts of data to be transfered will
271     * also use this buffer to hold a header that describes the large
272     * command.
273     *
274     * These must be the first 6 fields since they are static initialized
275     * in the dummy context in glxext.c
276     */
277   /*@{ */
278   GLubyte *buf;
279   GLubyte *pc;
280   GLubyte *limit;
281   GLubyte *bufEnd;
282   GLint bufSize;
283   /*@} */
284
285    /**
286     * The XID of this rendering context.  When the context is created a
287     * new XID is allocated.  This is set to None when the context is
288     * destroyed but is still current to some thread. In this case the
289     * context will be freed on next MakeCurrent.
290     */
291   XID xid;
292
293    /**
294     * The XID of the \c shareList context.
295     */
296   XID share_xid;
297
298    /**
299     * Screen number.
300     */
301   GLint screen;
302   __GLXscreenConfigs *psc;
303
304    /**
305     * \c GL_TRUE if the context was created with ImportContext, which
306     * means the server-side context was created by another X client.
307     */
308   GLboolean imported;
309
310    /**
311     * The context tag returned by MakeCurrent when this context is made
312     * current. This tag is used to identify the context that a thread has
313     * current so that proper server context management can be done.  It is
314     * used for all context specific commands (i.e., \c Render, \c RenderLarge,
315     * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
316     * context)).
317     */
318   GLXContextTag currentContextTag;
319
320    /**
321     * \name Rendering mode
322     *
323     * The rendering mode is kept on the client as well as the server.
324     * When \c glRenderMode is called, the buffer associated with the
325     * previous rendering mode (feedback or select) is filled.
326     */
327   /*@{ */
328   GLenum renderMode;
329   GLfloat *feedbackBuf;
330   GLuint *selectBuf;
331   /*@} */
332
333    /**
334     * This is \c GL_TRUE if the pixel unpack modes are such that an image
335     * can be unpacked from the clients memory by just copying.  It may
336     * still be true that the server will have to do some work.  This
337     * just promises that a straight copy will fetch the correct bytes.
338     */
339   GLboolean fastImageUnpack;
340
341    /**
342     * Fill newImage with the unpacked form of \c oldImage getting it
343     * ready for transport to the server.
344     */
345   void (*fillImage) (__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
346                      GLenum, const GLvoid *, GLubyte *, GLubyte *);
347
348    /**
349     * Client side attribs.
350     */
351   __GLXattributeMachine attributes;
352
353    /**
354     * Client side error code.  This is set when client side gl API
355     * routines need to set an error because of a bad enumerant or
356     * running out of memory, etc.
357     */
358   GLenum error;
359
360    /**
361     * Whether this context does direct rendering.
362     */
363   Bool isDirect;
364
365    /**
366     * \c dpy of current display for this context.  Will be \c NULL if not
367     * current to any display, or if this is the "dummy context".
368     */
369   Display *currentDpy;
370
371    /**
372     * The current drawable for this context.  Will be None if this
373     * context is not current to any drawable.  currentReadable is below.
374     */
375   GLXDrawable currentDrawable;
376
377    /**
378     * \name GL Constant Strings
379     *
380     * Constant strings that describe the server implementation
381     * These pertain to GL attributes, not to be confused with
382     * GLX versioning attributes.
383     */
384   /*@{ */
385   GLubyte *vendor;
386   GLubyte *renderer;
387   GLubyte *version;
388   GLubyte *extensions;
389   /*@} */
390
391    /**
392     * Maximum small render command size.  This is the smaller of 64k and
393     * the size of the above buffer.
394     */
395   GLint maxSmallRenderCommandSize;
396
397    /**
398     * Major opcode for the extension.  Copied here so a lookup isn't
399     * needed.
400     */
401   GLint majorOpcode;
402
403    /**
404     * Pointer to the mode used to create this context.
405     */
406   const __GLcontextModes *mode;
407
408#ifdef GLX_DIRECT_RENDERING
409#ifdef GLX_USE_APPLEGL
410   void *driContext;
411   Bool do_destroy;
412#else
413   __GLXDRIcontext *driContext;
414#endif
415#endif
416
417    /**
418     * The current read-drawable for this context.  Will be None if this
419     * context is not current to any drawable.
420     *
421     * \since Internal API version 20030606.
422     */
423   GLXDrawable currentReadable;
424
425   /**
426    * Pointer to client-state data that is private to libGL.  This is only
427    * used for indirect rendering contexts.
428    *
429    * No internal API version change was made for this change.  Client-side
430    * drivers should NEVER use this data or even care that it exists.
431    */
432   void *client_state_private;
433
434   /**
435    * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
436    */
437   int renderType;
438
439   /**
440    * \name Raw server GL version
441    *
442    * True core GL version supported by the server.  This is the raw value
443    * returned by the server, and it may not reflect what is actually
444    * supported (or reported) by the client-side library.
445    */
446   /*@{ */
447   int server_major;        /**< Major version number. */
448   int server_minor;        /**< Minor version number. */
449   /*@} */
450
451   /**
452    * Thread ID we're currently current in. Zero if none.
453    */
454   unsigned long thread_id;
455
456   char gl_extension_bits[__GL_EXT_BYTES];
457
458   const struct glx_context_vtable *vtable;
459};
460
461extern Bool
462glx_context_init(__GLXcontext *gc,
463		 __GLXscreenConfigs *psc, const __GLcontextModes *fbconfig);
464
465#define __glXSetError(gc,code)  \
466   if (!(gc)->error) {          \
467      (gc)->error = code;       \
468   }
469
470extern void __glFreeAttributeState(__GLXcontext *);
471
472/************************************************************************/
473
474/**
475 * The size of the largest drawing command known to the implementation
476 * that will use the GLXRender GLX command.  In this case it is
477 * \c glPolygonStipple.
478 */
479#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
480
481/**
482 * To keep the implementation fast, the code uses a "limit" pointer
483 * to determine when the drawing command buffer is too full to hold
484 * another fixed size command.  This constant defines the amount of
485 * space that must always be available in the drawing command buffer
486 * at all times for the implementation to work.  It is important that
487 * the number be just large enough, but not so large as to reduce the
488 * efficacy of the buffer.  The "+32" is just to keep the code working
489 * in case somebody counts wrong.
490 */
491#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
492
493/**
494 * This implementation uses a smaller threshold for switching
495 * to the RenderLarge protocol than the protcol requires so that
496 * large copies don't occur.
497 */
498#define __GLX_RENDER_CMD_SIZE_LIMIT 4096
499
500/**
501 * One of these records exists per screen of the display.  It contains
502 * a pointer to the config data for that screen (if the screen supports GL).
503 */
504struct __GLXscreenConfigsRec
505{
506    /**
507     * GLX extension string reported by the X-server.
508     */
509   const char *serverGLXexts;
510
511    /**
512     * GLX extension string to be reported to applications.  This is the
513     * set of extensions that the application can actually use.
514     */
515   char *effectiveGLXexts;
516
517   __GLXdisplayPrivate *display;
518
519#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
520    /**
521     * Per screen direct rendering interface functions and data.
522     */
523   Display *dpy;
524   int scr;
525
526   __GLXDRIscreen *driScreen;
527#endif
528
529    /**
530     * Linked list of glx visuals and  fbconfigs for this screen.
531     */
532   __GLcontextModes *visuals, *configs;
533
534    /**
535     * Per-screen dynamic GLX extension tracking.  The \c direct_support
536     * field only contains enough bits for 64 extensions.  Should libGL
537     * ever need to track more than 64 GLX extensions, we can safely grow
538     * this field.  The \c __GLXscreenConfigs structure is not used outside
539     * libGL.
540     */
541   /*@{ */
542   unsigned char direct_support[8];
543   GLboolean ext_list_first_time;
544   /*@} */
545
546};
547
548/**
549 * Per display private data.  One of these records exists for each display
550 * that is using the OpenGL (GLX) extension.
551 */
552struct __GLXdisplayPrivateRec
553{
554   /* The extension protocol codes */
555   XExtCodes *codes;
556   struct __GLXdisplayPrivateRec *next;
557
558    /**
559     * Back pointer to the display
560     */
561   Display *dpy;
562
563    /**
564     * The \c majorOpcode is common to all connections to the same server.
565     * It is also copied into the context structure.
566     */
567   int majorOpcode;
568
569    /**
570     * \name Server Version
571     *
572     * Major and minor version returned by the server during initialization.
573     */
574   /*@{ */
575   int majorVersion, minorVersion;
576   /*@} */
577
578    /**
579     * \name Storage for the servers GLX vendor and versions strings.
580     *
581     * These are the same for all screens on this display. These fields will
582     * be filled in on demand.
583     */
584   /*@{ */
585   const char *serverGLXvendor;
586   const char *serverGLXversion;
587   /*@} */
588
589    /**
590     * Configurations of visuals for all screens on this display.
591     * Also, per screen data which now includes the server \c GLX_EXTENSION
592     * string.
593     */
594   __GLXscreenConfigs **screenConfigs;
595
596#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
597   __glxHashTable *drawHash;
598
599    /**
600     * Per display direct rendering interface functions and data.
601     */
602   __GLXDRIdisplay *driswDisplay;
603   __GLXDRIdisplay *driDisplay;
604   __GLXDRIdisplay *dri2Display;
605#endif
606};
607
608extern int
609glx_screen_init(__GLXscreenConfigs *psc,
610		int screen, __GLXdisplayPrivate * priv);
611
612#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
613extern __GLXDRIdrawable *
614dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
615#endif
616
617extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *);
618
619extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber,
620                                GLint totalRequests,
621                                const GLvoid * data, GLint dataLen);
622
623extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
624                                  const GLvoid *, GLint);
625
626/* Initialize the GLX extension for dpy */
627extern __GLXdisplayPrivate *__glXInitialize(Display *);
628
629extern void __glXPreferEGL(int state);
630
631/************************************************************************/
632
633extern int __glXDebug;
634
635/* This is per-thread storage in an MT environment */
636#if defined( PTHREADS )
637
638extern void __glXSetCurrentContext(__GLXcontext * c);
639
640# if defined( GLX_USE_TLS )
641
642extern __thread void *__glX_tls_Context
643   __attribute__ ((tls_model("initial-exec")));
644
645#  define __glXGetCurrentContext() __glX_tls_Context
646
647# else
648
649extern __GLXcontext *__glXGetCurrentContext(void);
650
651# endif /* defined( GLX_USE_TLS ) */
652
653#else
654
655extern __GLXcontext *__glXcurrentContext;
656#define __glXGetCurrentContext() __glXcurrentContext
657#define __glXSetCurrentContext(gc) __glXcurrentContext = gc
658
659#endif /* defined( PTHREADS ) */
660
661extern void __glXSetCurrentContextNull(void);
662
663extern void __glXFreeContext(__GLXcontext *);
664
665
666/*
667** Global lock for all threads in this address space using the GLX
668** extension
669*/
670#if defined( PTHREADS )
671extern pthread_mutex_t __glXmutex;
672#define __glXLock()    pthread_mutex_lock(&__glXmutex)
673#define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
674#else
675#define __glXLock()
676#define __glXUnlock()
677#endif
678
679/*
680** Setup for a command.  Initialize the extension for dpy if necessary.
681*/
682extern CARD8 __glXSetupForCommand(Display * dpy);
683
684/************************************************************************/
685
686/*
687** Data conversion and packing support.
688*/
689
690extern const GLuint __glXDefaultPixelStore[9];
691
692/* Send an image to the server using RenderLarge. */
693extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim,
694                                GLint width, GLint height, GLint depth,
695                                GLenum format, GLenum type,
696                                const GLvoid * src, GLubyte * pc,
697                                GLubyte * modes);
698
699/* Return the size, in bytes, of some pixel data */
700extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
701
702/* Return the number of elements per group of a specified format*/
703extern GLint __glElementsPerGroup(GLenum format, GLenum type);
704
705/* Return the number of bytes per element, based on the element type (other
706** than GL_BITMAP).
707*/
708extern GLint __glBytesPerElement(GLenum type);
709
710/*
711** Fill the transport buffer with the data from the users buffer,
712** applying some of the pixel store modes (unpack modes) to the data
713** first.  As a side effect of this call, the "modes" field is
714** updated to contain the modes needed by the server to decode the
715** sent data.
716*/
717extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
718                          GLenum, const GLvoid *, GLubyte *, GLubyte *);
719
720/* Copy map data with a stride into a packed buffer */
721extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
722extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
723extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
724                          const GLfloat *, GLfloat *);
725extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
726                          const GLdouble *, GLdouble *);
727
728/*
729** Empty an image out of the reply buffer into the clients memory applying
730** the pack modes to pack back into the clients requested format.
731*/
732extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
733                           GLenum, const GLubyte *, GLvoid *);
734
735
736/*
737** Allocate and Initialize Vertex Array client state, and free.
738*/
739extern void __glXInitVertexArrayState(__GLXcontext *);
740extern void __glXFreeVertexArrayState(__GLXcontext *);
741
742/*
743** Inform the Server of the major and minor numbers and of the client
744** libraries extension string.
745*/
746extern void __glXClientInfo(Display * dpy, int opcode);
747
748/************************************************************************/
749
750/*
751** Declarations that should be in Xlib
752*/
753#ifdef __GL_USE_OUR_PROTOTYPES
754extern void _XFlush(Display *);
755extern Status _XReply(Display *, xReply *, int, Bool);
756extern void _XRead(Display *, void *, long);
757extern void _XSend(Display *, const void *, long);
758#endif
759
760
761extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config,
762                                                int count, const INT32 * bp,
763                                                Bool tagged_only,
764                                                Bool fbconfig_style_tags);
765
766extern char *__glXQueryServerString(Display * dpy, int opcode,
767                                    CARD32 screen, CARD32 name);
768extern char *__glXGetString(Display * dpy, int opcode,
769                            CARD32 screen, CARD32 name);
770
771extern char *__glXstrdup(const char *str);
772
773
774extern const char __glXGLClientVersion[];
775extern const char __glXGLClientExtensions[];
776
777/* Get the unadjusted system time */
778extern int __glXGetUST(int64_t * ust);
779
780extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
781                                    int32_t * numerator,
782                                    int32_t * denominator);
783
784#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
785extern GLboolean
786__glxGetMscRate(__GLXDRIdrawable *glxDraw,
787		int32_t * numerator, int32_t * denominator);
788
789/* So that dri2.c:DRI2WireToEvent() can access
790 * glx_info->codes->first_event */
791XExtDisplayInfo *__glXFindDisplay (Display *dpy);
792
793extern __GLXDRIdrawable *
794GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
795
796#endif
797
798#endif /* !__GLX_client_h__ */
799