glxclient.h revision 0594cf70883b64692ba617d85f4f9b4e636e5c2b 
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#ifndef GLX_USE_APPLEGL
58#include "glapi/glapitable.h"
59#endif
60#include "glxhash.h"
61#if defined( PTHREADS )
62# include <pthread.h>
63#endif
64
65#include "glxextensions.h"
66
67
68/* If we build the library with gcc's -fvisibility=hidden flag, we'll
69 * use the PUBLIC macro to mark functions that are to be exported.
70 *
71 * We also need to define a USED attribute, so the optimizer doesn't
72 * inline a static function that we later use in an alias. - ajax
73 */
74#if defined(__GNUC__)
75#  define PUBLIC __attribute__((visibility("default")))
76#  define USED __attribute__((used))
77#else
78#  define PUBLIC
79#  define USED
80#endif
81
82
83
84#define GLX_MAJOR_VERSION 1       /* current version numbers */
85#define GLX_MINOR_VERSION 4
86
87#define __GLX_MAX_TEXTURE_UNITS 32
88
89typedef struct __GLXscreenConfigsRec __GLXscreenConfigs;
90typedef struct __GLXcontextRec __GLXcontext;
91typedef struct __GLXdrawableRec __GLXdrawable;
92typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate;
93typedef struct _glapi_table __GLapi;
94
95/************************************************************************/
96
97#ifdef GLX_DIRECT_RENDERING
98
99#define containerOf(ptr, type, member)              \
100    (type *)( (char *)ptr - offsetof(type,member) )
101
102#include <GL/internal/dri_interface.h>
103
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   __GLXDRIscreen *(*createScreen) (__GLXscreenConfigs * psc, int screen,
124                                    __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   void (*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   __DRIdrawable *driDrawable;
177   GLenum textureFormat;        /* EXT_texture_from_pixmap support */
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
190extern void DRI_glXUseXFont(Font font, int first, int count, int listbase);
191
192/*
193** Functions to obtain driver configuration information from a direct
194** rendering client application
195*/
196extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
197
198extern const char *glXGetDriverConfig(const char *driverName);
199
200#endif
201
202#ifdef GLX_USE_APPLEGL
203extern void DRI_glXUseXFont( Font font, int first, int count, int listbase );
204#endif
205
206/************************************************************************/
207
208#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
209
210typedef struct __GLXpixelStoreModeRec
211{
212   GLboolean swapEndian;
213   GLboolean lsbFirst;
214   GLuint rowLength;
215   GLuint imageHeight;
216   GLuint imageDepth;
217   GLuint skipRows;
218   GLuint skipPixels;
219   GLuint skipImages;
220   GLuint alignment;
221} __GLXpixelStoreMode;
222
223
224typedef struct __GLXattributeRec
225{
226   GLuint mask;
227
228    /**
229     * Pixel storage state.  Most of the pixel store mode state is kept
230     * here and used by the client code to manage the packing and
231     * unpacking of data sent to/received from the server.
232     */
233   __GLXpixelStoreMode storePack, storeUnpack;
234
235    /**
236     * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
237     * disabled?
238     */
239   GLboolean NoDrawArraysProtocol;
240
241    /**
242     * Vertex Array storage state.  The vertex array component
243     * state is stored here and is used to manage the packing of
244     * DrawArrays data sent to the server.
245     */
246   struct array_state_vector *array_state;
247} __GLXattribute;
248
249typedef struct __GLXattributeMachineRec
250{
251   __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
252   __GLXattribute **stackPointer;
253} __GLXattributeMachine;
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     * Record the dpy this context was created on for later freeing
393     */
394   Display *createDpy;
395
396    /**
397     * Maximum small render command size.  This is the smaller of 64k and
398     * the size of the above buffer.
399     */
400   GLint maxSmallRenderCommandSize;
401
402    /**
403     * Major opcode for the extension.  Copied here so a lookup isn't
404     * needed.
405     */
406   GLint majorOpcode;
407
408    /**
409     * Pointer to the mode used to create this context.
410     */
411   const __GLcontextModes *mode;
412
413#ifdef GLX_DIRECT_RENDERING
414   __GLXDRIcontext *driContext;
415   __DRIcontext *__driContext;
416#endif
417
418    /**
419     * The current read-drawable for this context.  Will be None if this
420     * context is not current to any drawable.
421     *
422     * \since Internal API version 20030606.
423     */
424   GLXDrawable currentReadable;
425
426   /**
427    * Pointer to client-state data that is private to libGL.  This is only
428    * used for indirect rendering contexts.
429    *
430    * No internal API version change was made for this change.  Client-side
431    * drivers should NEVER use this data or even care that it exists.
432    */
433   void *client_state_private;
434
435   /**
436    * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
437    */
438   int renderType;
439
440   /**
441    * \name Raw server GL version
442    *
443    * True core GL version supported by the server.  This is the raw value
444    * returned by the server, and it may not reflect what is actually
445    * supported (or reported) by the client-side library.
446    */
447   /*@{ */
448   int server_major;        /**< Major version number. */
449   int server_minor;        /**< Minor version number. */
450   /*@} */
451
452   /**
453    * Thread ID we're currently current in. Zero if none.
454    */
455   unsigned long thread_id;
456
457   char gl_extension_bits[__GL_EXT_BYTES];
458
459#ifdef GLX_USE_APPLEGL
460   void *apple;
461   Bool do_destroy;
462#endif
463};
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#ifdef GLX_DIRECT_RENDERING
518    /**
519     * Per screen direct rendering interface functions and data.
520     */
521   __DRIscreen *__driScreen;
522   const __DRIcoreExtension *core;
523   const __DRIlegacyExtension *legacy;
524   const __DRIswrastExtension *swrast;
525   const __DRIdri2Extension *dri2;
526   __glxHashTable *drawHash;
527   Display *dpy;
528   int scr, fd;
529   void *driver;
530
531   __GLXDRIscreen *driScreen;
532
533   const __DRIconfig **driver_configs;
534
535#ifdef __DRI_COPY_SUB_BUFFER
536   const __DRIcopySubBufferExtension *driCopySubBuffer;
537#endif
538
539#ifdef __DRI_SWAP_CONTROL
540   const __DRIswapControlExtension *swapControl;
541#endif
542
543#ifdef __DRI_ALLOCATE
544   const __DRIallocateExtension *allocate;
545#endif
546
547#ifdef __DRI_FRAME_TRACKING
548   const __DRIframeTrackingExtension *frameTracking;
549#endif
550
551#ifdef __DRI_MEDIA_STREAM_COUNTER
552   const __DRImediaStreamCounterExtension *msc;
553#endif
554
555#ifdef __DRI_TEX_BUFFER
556   const __DRItexBufferExtension *texBuffer;
557#endif
558
559#ifdef __DRI2_FLUSH
560   const __DRI2flushExtension *f;
561#endif
562
563#endif
564
565    /**
566     * Linked list of glx visuals and  fbconfigs for this screen.
567     */
568   __GLcontextModes *visuals, *configs;
569
570    /**
571     * Per-screen dynamic GLX extension tracking.  The \c direct_support
572     * field only contains enough bits for 64 extensions.  Should libGL
573     * ever need to track more than 64 GLX extensions, we can safely grow
574     * this field.  The \c __GLXscreenConfigs structure is not used outside
575     * libGL.
576     */
577   /*@{ */
578   unsigned char direct_support[8];
579   GLboolean ext_list_first_time;
580   /*@} */
581
582};
583
584/**
585 * Per display private data.  One of these records exists for each display
586 * that is using the OpenGL (GLX) extension.
587 */
588struct __GLXdisplayPrivateRec
589{
590    /**
591     * Back pointer to the display
592     */
593   Display *dpy;
594
595    /**
596     * The \c majorOpcode is common to all connections to the same server.
597     * It is also copied into the context structure.
598     */
599   int majorOpcode;
600
601    /**
602     * \name Server Version
603     *
604     * Major and minor version returned by the server during initialization.
605     */
606   /*@{ */
607   int majorVersion, minorVersion;
608   /*@} */
609
610    /**
611     * \name Storage for the servers GLX vendor and versions strings.
612     *
613     * These are the same for all screens on this display. These fields will
614     * be filled in on demand.
615     */
616   /*@{ */
617   const char *serverGLXvendor;
618   const char *serverGLXversion;
619   /*@} */
620
621    /**
622     * Configurations of visuals for all screens on this display.
623     * Also, per screen data which now includes the server \c GLX_EXTENSION
624     * string.
625     */
626   __GLXscreenConfigs *screenConfigs;
627
628#ifdef GLX_DIRECT_RENDERING
629    /**
630     * Per display direct rendering interface functions and data.
631     */
632   __GLXDRIdisplay *driswDisplay;
633   __GLXDRIdisplay *driDisplay;
634   __GLXDRIdisplay *dri2Display;
635#endif
636};
637
638
639extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *);
640
641#ifndef GLX_USE_APPLEGL
642extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber,
643                                GLint totalRequests,
644                                const GLvoid * data, GLint dataLen);
645
646extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
647                                  const GLvoid *, GLint);
648#endif
649
650/* Initialize the GLX extension for dpy */
651extern __GLXdisplayPrivate *__glXInitialize(Display *);
652
653extern void __glXPreferEGL(int state);
654
655/************************************************************************/
656
657extern int __glXDebug;
658
659/* This is per-thread storage in an MT environment */
660#if defined( PTHREADS )
661
662extern void __glXSetCurrentContext(__GLXcontext * c);
663
664# if defined( GLX_USE_TLS )
665
666extern __thread void *__glX_tls_Context
667   __attribute__ ((tls_model("initial-exec")));
668
669#  define __glXGetCurrentContext() __glX_tls_Context
670
671# else
672
673extern __GLXcontext *__glXGetCurrentContext(void);
674
675# endif /* defined( GLX_USE_TLS ) */
676
677#else
678
679extern __GLXcontext *__glXcurrentContext;
680#define __glXGetCurrentContext() __glXcurrentContext
681#define __glXSetCurrentContext(gc) __glXcurrentContext = gc
682
683#endif /* defined( PTHREADS ) */
684
685extern void __glXSetCurrentContextNull(void);
686
687extern void __glXFreeContext(__GLXcontext *);
688
689
690/*
691** Global lock for all threads in this address space using the GLX
692** extension
693*/
694#if defined( PTHREADS )
695extern pthread_mutex_t __glXmutex;
696#define __glXLock()    pthread_mutex_lock(&__glXmutex)
697#define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
698#else
699#define __glXLock()
700#define __glXUnlock()
701#endif
702
703/*
704** Setup for a command.  Initialize the extension for dpy if necessary.
705*/
706extern CARD8 __glXSetupForCommand(Display * dpy);
707
708/************************************************************************/
709
710/*
711** Data conversion and packing support.
712*/
713
714extern const GLuint __glXDefaultPixelStore[9];
715
716/* Send an image to the server using RenderLarge. */
717extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim,
718                                GLint width, GLint height, GLint depth,
719                                GLenum format, GLenum type,
720                                const GLvoid * src, GLubyte * pc,
721                                GLubyte * modes);
722
723/* Return the size, in bytes, of some pixel data */
724extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
725
726/* Return the number of elements per group of a specified format*/
727extern GLint __glElementsPerGroup(GLenum format, GLenum type);
728
729/* Return the number of bytes per element, based on the element type (other
730** than GL_BITMAP).
731*/
732extern GLint __glBytesPerElement(GLenum type);
733
734/*
735** Fill the transport buffer with the data from the users buffer,
736** applying some of the pixel store modes (unpack modes) to the data
737** first.  As a side effect of this call, the "modes" field is
738** updated to contain the modes needed by the server to decode the
739** sent data.
740*/
741extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
742                          GLenum, const GLvoid *, GLubyte *, GLubyte *);
743
744/* Copy map data with a stride into a packed buffer */
745extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
746extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
747extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
748                          const GLfloat *, GLfloat *);
749extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
750                          const GLdouble *, GLdouble *);
751
752/*
753** Empty an image out of the reply buffer into the clients memory applying
754** the pack modes to pack back into the clients requested format.
755*/
756extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
757                           GLenum, const GLubyte *, GLvoid *);
758
759
760/*
761** Allocate and Initialize Vertex Array client state, and free.
762*/
763extern void __glXInitVertexArrayState(__GLXcontext *);
764extern void __glXFreeVertexArrayState(__GLXcontext *);
765
766/*
767** Inform the Server of the major and minor numbers and of the client
768** libraries extension string.
769*/
770extern void __glXClientInfo(Display * dpy, int opcode);
771
772/************************************************************************/
773
774/*
775** Declarations that should be in Xlib
776*/
777#ifdef __GL_USE_OUR_PROTOTYPES
778extern void _XFlush(Display *);
779extern Status _XReply(Display *, xReply *, int, Bool);
780extern void _XRead(Display *, void *, long);
781extern void _XSend(Display *, const void *, long);
782#endif
783
784
785extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config,
786                                                int count, const INT32 * bp,
787                                                Bool tagged_only,
788                                                Bool fbconfig_style_tags);
789
790extern char *__glXQueryServerString(Display * dpy, int opcode,
791                                    CARD32 screen, CARD32 name);
792extern char *__glXGetString(Display * dpy, int opcode,
793                            CARD32 screen, CARD32 name);
794
795extern char *__glXstrdup(const char *str);
796
797
798extern const char __glXGLClientVersion[];
799extern const char __glXGLClientExtensions[];
800
801/* Get the unadjusted system time */
802extern int __glXGetUST(int64_t * ust);
803
804extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
805                                    int32_t * numerator,
806                                    int32_t * denominator);
807
808#ifdef GLX_DIRECT_RENDERING
809GLboolean
810__driGetMscRateOML(__DRIdrawable * draw,
811                   int32_t * numerator, int32_t * denominator, void *private);
812
813/* So that dri2.c:DRI2WireToEvent() can access
814 * glx_info->codes->first_event */
815XExtDisplayInfo *__glXFindDisplay (Display *dpy);
816
817extern __GLXDRIdrawable *
818GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable, int *const scrn_num);
819
820#endif
821
822#endif /* !__GLX_client_h__ */
823