glxclient.h revision 61d26bc82e7c4100acfb551cbb0ba9d84bbc4ba5 
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);
185extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
186
187
188extern void DRI_glXUseXFont(Font font, int first, int count, int listbase);
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
249/**
250 * GLX state that needs to be kept on the client.  One of these records
251 * exist for each context that has been made current by this client.
252 */
253struct __GLXcontextRec
254{
255    /**
256     * \name Drawing command buffer.
257     *
258     * Drawing commands are packed into this buffer before being sent as a
259     * single GLX protocol request.  The buffer is sent when it overflows or
260     * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
261     * in the buffer to be filled.  \c limit is described above in the buffer
262     * slop discussion.
263     *
264     * Commands that require large amounts of data to be transfered will
265     * also use this buffer to hold a header that describes the large
266     * command.
267     *
268     * These must be the first 6 fields since they are static initialized
269     * in the dummy context in glxext.c
270     */
271   /*@{ */
272   GLubyte *buf;
273   GLubyte *pc;
274   GLubyte *limit;
275   GLubyte *bufEnd;
276   GLint bufSize;
277   /*@} */
278
279    /**
280     * The XID of this rendering context.  When the context is created a
281     * new XID is allocated.  This is set to None when the context is
282     * destroyed but is still current to some thread. In this case the
283     * context will be freed on next MakeCurrent.
284     */
285   XID xid;
286
287    /**
288     * The XID of the \c shareList context.
289     */
290   XID share_xid;
291
292    /**
293     * Screen number.
294     */
295   GLint screen;
296   __GLXscreenConfigs *psc;
297
298    /**
299     * \c GL_TRUE if the context was created with ImportContext, which
300     * means the server-side context was created by another X client.
301     */
302   GLboolean imported;
303
304    /**
305     * The context tag returned by MakeCurrent when this context is made
306     * current. This tag is used to identify the context that a thread has
307     * current so that proper server context management can be done.  It is
308     * used for all context specific commands (i.e., \c Render, \c RenderLarge,
309     * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
310     * context)).
311     */
312   GLXContextTag currentContextTag;
313
314    /**
315     * \name Rendering mode
316     *
317     * The rendering mode is kept on the client as well as the server.
318     * When \c glRenderMode is called, the buffer associated with the
319     * previous rendering mode (feedback or select) is filled.
320     */
321   /*@{ */
322   GLenum renderMode;
323   GLfloat *feedbackBuf;
324   GLuint *selectBuf;
325   /*@} */
326
327    /**
328     * This is \c GL_TRUE if the pixel unpack modes are such that an image
329     * can be unpacked from the clients memory by just copying.  It may
330     * still be true that the server will have to do some work.  This
331     * just promises that a straight copy will fetch the correct bytes.
332     */
333   GLboolean fastImageUnpack;
334
335    /**
336     * Fill newImage with the unpacked form of \c oldImage getting it
337     * ready for transport to the server.
338     */
339   void (*fillImage) (__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
340                      GLenum, const GLvoid *, GLubyte *, GLubyte *);
341
342    /**
343     * Client side attribs.
344     */
345   __GLXattributeMachine attributes;
346
347    /**
348     * Client side error code.  This is set when client side gl API
349     * routines need to set an error because of a bad enumerant or
350     * running out of memory, etc.
351     */
352   GLenum error;
353
354    /**
355     * Whether this context does direct rendering.
356     */
357   Bool isDirect;
358
359    /**
360     * \c dpy of current display for this context.  Will be \c NULL if not
361     * current to any display, or if this is the "dummy context".
362     */
363   Display *currentDpy;
364
365    /**
366     * The current drawable for this context.  Will be None if this
367     * context is not current to any drawable.  currentReadable is below.
368     */
369   GLXDrawable currentDrawable;
370
371    /**
372     * \name GL Constant Strings
373     *
374     * Constant strings that describe the server implementation
375     * These pertain to GL attributes, not to be confused with
376     * GLX versioning attributes.
377     */
378   /*@{ */
379   GLubyte *vendor;
380   GLubyte *renderer;
381   GLubyte *version;
382   GLubyte *extensions;
383   /*@} */
384
385    /**
386     * Record the dpy this context was created on for later freeing
387     */
388   Display *createDpy;
389
390    /**
391     * Maximum small render command size.  This is the smaller of 64k and
392     * the size of the above buffer.
393     */
394   GLint maxSmallRenderCommandSize;
395
396    /**
397     * Major opcode for the extension.  Copied here so a lookup isn't
398     * needed.
399     */
400   GLint majorOpcode;
401
402    /**
403     * Pointer to the mode used to create this context.
404     */
405   const __GLcontextModes *mode;
406
407#ifdef GLX_DIRECT_RENDERING
408   __GLXDRIcontext *driContext;
409   __DRIcontext *__driContext;
410#endif
411
412    /**
413     * The current read-drawable for this context.  Will be None if this
414     * context is not current to any drawable.
415     *
416     * \since Internal API version 20030606.
417     */
418   GLXDrawable currentReadable;
419
420   /**
421    * Pointer to client-state data that is private to libGL.  This is only
422    * used for indirect rendering contexts.
423    *
424    * No internal API version change was made for this change.  Client-side
425    * drivers should NEVER use this data or even care that it exists.
426    */
427   void *client_state_private;
428
429   /**
430    * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
431    */
432   int renderType;
433
434   /**
435    * \name Raw server GL version
436    *
437    * True core GL version supported by the server.  This is the raw value
438    * returned by the server, and it may not reflect what is actually
439    * supported (or reported) by the client-side library.
440    */
441   /*@{ */
442   int server_major;        /**< Major version number. */
443   int server_minor;        /**< Minor version number. */
444   /*@} */
445
446   /**
447    * Thread ID we're currently current in. Zero if none.
448    */
449   unsigned long thread_id;
450
451   char gl_extension_bits[__GL_EXT_BYTES];
452};
453
454#define __glXSetError(gc,code)  \
455   if (!(gc)->error) {          \
456      (gc)->error = code;       \
457   }
458
459extern void __glFreeAttributeState(__GLXcontext *);
460
461/************************************************************************/
462
463/**
464 * The size of the largest drawing command known to the implementation
465 * that will use the GLXRender GLX command.  In this case it is
466 * \c glPolygonStipple.
467 */
468#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
469
470/**
471 * To keep the implementation fast, the code uses a "limit" pointer
472 * to determine when the drawing command buffer is too full to hold
473 * another fixed size command.  This constant defines the amount of
474 * space that must always be available in the drawing command buffer
475 * at all times for the implementation to work.  It is important that
476 * the number be just large enough, but not so large as to reduce the
477 * efficacy of the buffer.  The "+32" is just to keep the code working
478 * in case somebody counts wrong.
479 */
480#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
481
482/**
483 * This implementation uses a smaller threshold for switching
484 * to the RenderLarge protocol than the protcol requires so that
485 * large copies don't occur.
486 */
487#define __GLX_RENDER_CMD_SIZE_LIMIT 4096
488
489/**
490 * One of these records exists per screen of the display.  It contains
491 * a pointer to the config data for that screen (if the screen supports GL).
492 */
493struct __GLXscreenConfigsRec
494{
495    /**
496     * GLX extension string reported by the X-server.
497     */
498   const char *serverGLXexts;
499
500    /**
501     * GLX extension string to be reported to applications.  This is the
502     * set of extensions that the application can actually use.
503     */
504   char *effectiveGLXexts;
505
506#ifdef GLX_DIRECT_RENDERING
507    /**
508     * Per screen direct rendering interface functions and data.
509     */
510   __DRIscreen *__driScreen;
511   const __DRIcoreExtension *core;
512   const __DRIlegacyExtension *legacy;
513   const __DRIswrastExtension *swrast;
514   const __DRIdri2Extension *dri2;
515   __glxHashTable *drawHash;
516   Display *dpy;
517   int scr, fd;
518   void *driver;
519
520   __GLXDRIscreen *driScreen;
521
522   const __DRIconfig **driver_configs;
523
524#ifdef __DRI_COPY_SUB_BUFFER
525   const __DRIcopySubBufferExtension *driCopySubBuffer;
526#endif
527
528#ifdef __DRI_SWAP_CONTROL
529   const __DRIswapControlExtension *swapControl;
530#endif
531
532#ifdef __DRI_ALLOCATE
533   const __DRIallocateExtension *allocate;
534#endif
535
536#ifdef __DRI_FRAME_TRACKING
537   const __DRIframeTrackingExtension *frameTracking;
538#endif
539
540#ifdef __DRI_MEDIA_STREAM_COUNTER
541   const __DRImediaStreamCounterExtension *msc;
542#endif
543
544#ifdef __DRI_TEX_BUFFER
545   const __DRItexBufferExtension *texBuffer;
546#endif
547
548#ifdef __DRI2_FLUSH
549   const __DRI2flushExtension *f;
550#endif
551
552#endif
553
554    /**
555     * Linked list of glx visuals and  fbconfigs for this screen.
556     */
557   __GLcontextModes *visuals, *configs;
558
559    /**
560     * Per-screen dynamic GLX extension tracking.  The \c direct_support
561     * field only contains enough bits for 64 extensions.  Should libGL
562     * ever need to track more than 64 GLX extensions, we can safely grow
563     * this field.  The \c __GLXscreenConfigs structure is not used outside
564     * libGL.
565     */
566   /*@{ */
567   unsigned char direct_support[8];
568   GLboolean ext_list_first_time;
569   /*@} */
570
571};
572
573/**
574 * Per display private data.  One of these records exists for each display
575 * that is using the OpenGL (GLX) extension.
576 */
577struct __GLXdisplayPrivateRec
578{
579    /**
580     * Back pointer to the display
581     */
582   Display *dpy;
583
584    /**
585     * The \c majorOpcode is common to all connections to the same server.
586     * It is also copied into the context structure.
587     */
588   int majorOpcode;
589
590    /**
591     * \name Server Version
592     *
593     * Major and minor version returned by the server during initialization.
594     */
595   /*@{ */
596   int majorVersion, minorVersion;
597   /*@} */
598
599    /**
600     * \name Storage for the servers GLX vendor and versions strings.
601     *
602     * These are the same for all screens on this display. These fields will
603     * be filled in on demand.
604     */
605   /*@{ */
606   const char *serverGLXvendor;
607   const char *serverGLXversion;
608   /*@} */
609
610    /**
611     * Configurations of visuals for all screens on this display.
612     * Also, per screen data which now includes the server \c GLX_EXTENSION
613     * string.
614     */
615   __GLXscreenConfigs *screenConfigs;
616
617#ifdef GLX_DIRECT_RENDERING
618    /**
619     * Per display direct rendering interface functions and data.
620     */
621   __GLXDRIdisplay *driswDisplay;
622   __GLXDRIdisplay *driDisplay;
623   __GLXDRIdisplay *dri2Display;
624#endif
625};
626
627
628extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *);
629
630extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber,
631                                GLint totalRequests,
632                                const GLvoid * data, GLint dataLen);
633
634extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
635                                  const GLvoid *, GLint);
636
637/* Initialize the GLX extension for dpy */
638extern __GLXdisplayPrivate *__glXInitialize(Display *);
639
640extern void __glXPreferEGL(int state);
641
642/************************************************************************/
643
644extern int __glXDebug;
645
646/* This is per-thread storage in an MT environment */
647#if defined( PTHREADS )
648
649extern void __glXSetCurrentContext(__GLXcontext * c);
650
651# if defined( GLX_USE_TLS )
652
653extern __thread void *__glX_tls_Context
654   __attribute__ ((tls_model("initial-exec")));
655
656#  define __glXGetCurrentContext() __glX_tls_Context
657
658# else
659
660extern __GLXcontext *__glXGetCurrentContext(void);
661
662# endif /* defined( GLX_USE_TLS ) */
663
664#else
665
666extern __GLXcontext *__glXcurrentContext;
667#define __glXGetCurrentContext() __glXcurrentContext
668#define __glXSetCurrentContext(gc) __glXcurrentContext = gc
669
670#endif /* defined( PTHREADS ) */
671
672extern void __glXSetCurrentContextNull(void);
673
674extern void __glXFreeContext(__GLXcontext *);
675
676
677/*
678** Global lock for all threads in this address space using the GLX
679** extension
680*/
681#if defined( PTHREADS )
682extern pthread_mutex_t __glXmutex;
683#define __glXLock()    pthread_mutex_lock(&__glXmutex)
684#define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
685#else
686#define __glXLock()
687#define __glXUnlock()
688#endif
689
690/*
691** Setup for a command.  Initialize the extension for dpy if necessary.
692*/
693extern CARD8 __glXSetupForCommand(Display * dpy);
694
695/************************************************************************/
696
697/*
698** Data conversion and packing support.
699*/
700
701extern const GLuint __glXDefaultPixelStore[9];
702
703/* Send an image to the server using RenderLarge. */
704extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim,
705                                GLint width, GLint height, GLint depth,
706                                GLenum format, GLenum type,
707                                const GLvoid * src, GLubyte * pc,
708                                GLubyte * modes);
709
710/* Return the size, in bytes, of some pixel data */
711extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
712
713/* Return the number of elements per group of a specified format*/
714extern GLint __glElementsPerGroup(GLenum format, GLenum type);
715
716/* Return the number of bytes per element, based on the element type (other
717** than GL_BITMAP).
718*/
719extern GLint __glBytesPerElement(GLenum type);
720
721/*
722** Fill the transport buffer with the data from the users buffer,
723** applying some of the pixel store modes (unpack modes) to the data
724** first.  As a side effect of this call, the "modes" field is
725** updated to contain the modes needed by the server to decode the
726** sent data.
727*/
728extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
729                          GLenum, const GLvoid *, GLubyte *, GLubyte *);
730
731/* Copy map data with a stride into a packed buffer */
732extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
733extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
734extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
735                          const GLfloat *, GLfloat *);
736extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
737                          const GLdouble *, GLdouble *);
738
739/*
740** Empty an image out of the reply buffer into the clients memory applying
741** the pack modes to pack back into the clients requested format.
742*/
743extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
744                           GLenum, const GLubyte *, GLvoid *);
745
746
747/*
748** Allocate and Initialize Vertex Array client state, and free.
749*/
750extern void __glXInitVertexArrayState(__GLXcontext *);
751extern void __glXFreeVertexArrayState(__GLXcontext *);
752
753/*
754** Inform the Server of the major and minor numbers and of the client
755** libraries extension string.
756*/
757extern void __glXClientInfo(Display * dpy, int opcode);
758
759/************************************************************************/
760
761/*
762** Declarations that should be in Xlib
763*/
764#ifdef __GL_USE_OUR_PROTOTYPES
765extern void _XFlush(Display *);
766extern Status _XReply(Display *, xReply *, int, Bool);
767extern void _XRead(Display *, void *, long);
768extern void _XSend(Display *, const void *, long);
769#endif
770
771
772extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config,
773                                                int count, const INT32 * bp,
774                                                Bool tagged_only,
775                                                Bool fbconfig_style_tags);
776
777extern char *__glXQueryServerString(Display * dpy, int opcode,
778                                    CARD32 screen, CARD32 name);
779extern char *__glXGetString(Display * dpy, int opcode,
780                            CARD32 screen, CARD32 name);
781
782extern char *__glXstrdup(const char *str);
783
784
785extern const char __glXGLClientVersion[];
786extern const char __glXGLClientExtensions[];
787
788/* Get the unadjusted system time */
789extern int __glXGetUST(int64_t * ust);
790
791extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
792                                    int32_t * numerator,
793                                    int32_t * denominator);
794
795#ifdef GLX_DIRECT_RENDERING
796GLboolean
797__driGetMscRateOML(__DRIdrawable * draw,
798                   int32_t * numerator, int32_t * denominator, void *private);
799
800/* So that dri2.c:DRI2WireToEvent() can access
801 * glx_info->codes->first_event */
802XExtDisplayInfo *__glXFindDisplay (Display *dpy);
803
804extern __GLXDRIdrawable *
805GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable, int *const scrn_num);
806
807#endif
808
809#endif /* !__GLX_client_h__ */
810