glxclient.h revision 643b2af0203764cb9f0a5b9e082937ab3f243523 
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__)
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
100extern void DRI_glXUseXFont(Font font, int first, int count, int listbase);
101
102#endif
103
104#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
105
106#include <GL/internal/dri_interface.h>
107
108/**
109 * Display dependent methods.  This structure is initialized during the
110 * \c driCreateDisplay call.
111 */
112typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
113typedef struct __GLXDRIscreenRec __GLXDRIscreen;
114typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
115typedef struct __GLXDRIcontextRec __GLXDRIcontext;
116
117#include "glxextensions.h"
118
119struct __GLXDRIdisplayRec
120{
121    /**
122     * Method to destroy the private DRI display data.
123     */
124   void (*destroyDisplay) (__GLXDRIdisplay * display);
125
126   __GLXDRIscreen *(*createScreen) (__GLXscreenConfigs * psc, int screen,
127                                    __GLXdisplayPrivate * priv);
128};
129
130struct __GLXDRIscreenRec {
131
132   void (*destroyScreen)(__GLXscreenConfigs *psc);
133
134   __GLXDRIcontext *(*createContext)(__GLXscreenConfigs *psc,
135				     const __GLcontextModes *mode,
136				     GLXContext gc,
137				     GLXContext shareList, int renderType);
138
139   __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc,
140				       XID drawable,
141				       GLXDrawable glxDrawable,
142				       const __GLcontextModes *modes);
143
144   int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc,
145			  int64_t divisor, int64_t remainder);
146   void (*copySubBuffer)(__GLXDRIdrawable *pdraw,
147			 int x, int y, int width, int height);
148   void (*waitX)(__GLXDRIdrawable *pdraw);
149   void (*waitGL)(__GLXDRIdrawable *pdraw);
150   int (*getDrawableMSC)(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw,
151			 int64_t *ust, int64_t *msc, int64_t *sbc);
152   int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
153		     int64_t divisor, int64_t remainder, int64_t *ust,
154		     int64_t *msc, int64_t *sbc);
155   int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
156		     int64_t *msc, int64_t *sbc);
157   void (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
158   int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
159};
160
161struct __GLXDRIcontextRec
162{
163   void (*destroyContext) (__GLXDRIcontext * context,
164                           __GLXscreenConfigs * psc, Display * dpy);
165     Bool(*bindContext) (__GLXDRIcontext * context, __GLXDRIdrawable * pdraw,
166                         __GLXDRIdrawable * pread);
167
168   void (*unbindContext) (__GLXDRIcontext * context);
169};
170
171struct __GLXDRIdrawableRec
172{
173   void (*destroyDrawable) (__GLXDRIdrawable * drawable);
174
175   XID xDrawable;
176   XID drawable;
177   __GLXscreenConfigs *psc;
178   GLenum textureTarget;
179   __DRIdrawable *driDrawable;
180   GLenum textureFormat;        /* EXT_texture_from_pixmap support */
181};
182
183/*
184** Function to create and DRI display data and initialize the display
185** dependent methods.
186*/
187extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
188extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
189extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
190extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
191
192
193/*
194** Functions to obtain driver configuration information from a direct
195** rendering client application
196*/
197extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
198
199extern const char *glXGetDriverConfig(const char *driverName);
200
201#endif
202
203/************************************************************************/
204
205#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
206
207typedef struct __GLXpixelStoreModeRec
208{
209   GLboolean swapEndian;
210   GLboolean lsbFirst;
211   GLuint rowLength;
212   GLuint imageHeight;
213   GLuint imageDepth;
214   GLuint skipRows;
215   GLuint skipPixels;
216   GLuint skipImages;
217   GLuint alignment;
218} __GLXpixelStoreMode;
219
220
221typedef struct __GLXattributeRec
222{
223   GLuint mask;
224
225    /**
226     * Pixel storage state.  Most of the pixel store mode state is kept
227     * here and used by the client code to manage the packing and
228     * unpacking of data sent to/received from the server.
229     */
230   __GLXpixelStoreMode storePack, storeUnpack;
231
232    /**
233     * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
234     * disabled?
235     */
236   GLboolean NoDrawArraysProtocol;
237
238    /**
239     * Vertex Array storage state.  The vertex array component
240     * state is stored here and is used to manage the packing of
241     * DrawArrays data sent to the server.
242     */
243   struct array_state_vector *array_state;
244} __GLXattribute;
245
246typedef struct __GLXattributeMachineRec
247{
248   __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
249   __GLXattribute **stackPointer;
250} __GLXattributeMachine;
251
252struct glx_context_vtable {
253   void (*bind_tex_image)(Display * dpy,
254			  GLXDrawable drawable,
255			  int buffer, const int *attrib_list);
256   void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
257
258};
259
260/**
261 * GLX state that needs to be kept on the client.  One of these records
262 * exist for each context that has been made current by this client.
263 */
264struct __GLXcontextRec
265{
266    /**
267     * \name Drawing command buffer.
268     *
269     * Drawing commands are packed into this buffer before being sent as a
270     * single GLX protocol request.  The buffer is sent when it overflows or
271     * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
272     * in the buffer to be filled.  \c limit is described above in the buffer
273     * slop discussion.
274     *
275     * Commands that require large amounts of data to be transfered will
276     * also use this buffer to hold a header that describes the large
277     * command.
278     *
279     * These must be the first 6 fields since they are static initialized
280     * in the dummy context in glxext.c
281     */
282   /*@{ */
283   GLubyte *buf;
284   GLubyte *pc;
285   GLubyte *limit;
286   GLubyte *bufEnd;
287   GLint bufSize;
288   /*@} */
289
290    /**
291     * The XID of this rendering context.  When the context is created a
292     * new XID is allocated.  This is set to None when the context is
293     * destroyed but is still current to some thread. In this case the
294     * context will be freed on next MakeCurrent.
295     */
296   XID xid;
297
298    /**
299     * The XID of the \c shareList context.
300     */
301   XID share_xid;
302
303    /**
304     * Screen number.
305     */
306   GLint screen;
307   __GLXscreenConfigs *psc;
308
309    /**
310     * \c GL_TRUE if the context was created with ImportContext, which
311     * means the server-side context was created by another X client.
312     */
313   GLboolean imported;
314
315    /**
316     * The context tag returned by MakeCurrent when this context is made
317     * current. This tag is used to identify the context that a thread has
318     * current so that proper server context management can be done.  It is
319     * used for all context specific commands (i.e., \c Render, \c RenderLarge,
320     * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
321     * context)).
322     */
323   GLXContextTag currentContextTag;
324
325    /**
326     * \name Rendering mode
327     *
328     * The rendering mode is kept on the client as well as the server.
329     * When \c glRenderMode is called, the buffer associated with the
330     * previous rendering mode (feedback or select) is filled.
331     */
332   /*@{ */
333   GLenum renderMode;
334   GLfloat *feedbackBuf;
335   GLuint *selectBuf;
336   /*@} */
337
338    /**
339     * This is \c GL_TRUE if the pixel unpack modes are such that an image
340     * can be unpacked from the clients memory by just copying.  It may
341     * still be true that the server will have to do some work.  This
342     * just promises that a straight copy will fetch the correct bytes.
343     */
344   GLboolean fastImageUnpack;
345
346    /**
347     * Fill newImage with the unpacked form of \c oldImage getting it
348     * ready for transport to the server.
349     */
350   void (*fillImage) (__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
351                      GLenum, const GLvoid *, GLubyte *, GLubyte *);
352
353    /**
354     * Client side attribs.
355     */
356   __GLXattributeMachine attributes;
357
358    /**
359     * Client side error code.  This is set when client side gl API
360     * routines need to set an error because of a bad enumerant or
361     * running out of memory, etc.
362     */
363   GLenum error;
364
365    /**
366     * Whether this context does direct rendering.
367     */
368   Bool isDirect;
369
370    /**
371     * \c dpy of current display for this context.  Will be \c NULL if not
372     * current to any display, or if this is the "dummy context".
373     */
374   Display *currentDpy;
375
376    /**
377     * The current drawable for this context.  Will be None if this
378     * context is not current to any drawable.  currentReadable is below.
379     */
380   GLXDrawable currentDrawable;
381
382    /**
383     * \name GL Constant Strings
384     *
385     * Constant strings that describe the server implementation
386     * These pertain to GL attributes, not to be confused with
387     * GLX versioning attributes.
388     */
389   /*@{ */
390   GLubyte *vendor;
391   GLubyte *renderer;
392   GLubyte *version;
393   GLubyte *extensions;
394   /*@} */
395
396    /**
397     * Record the dpy this context was created on for later freeing
398     */
399   Display *createDpy;
400
401    /**
402     * Maximum small render command size.  This is the smaller of 64k and
403     * the size of the above buffer.
404     */
405   GLint maxSmallRenderCommandSize;
406
407    /**
408     * Major opcode for the extension.  Copied here so a lookup isn't
409     * needed.
410     */
411   GLint majorOpcode;
412
413    /**
414     * Pointer to the mode used to create this context.
415     */
416   const __GLcontextModes *mode;
417
418#ifdef GLX_DIRECT_RENDERING
419#ifdef GLX_USE_APPLEGL
420   void *driContext;
421   Bool do_destroy;
422#else
423   __GLXDRIcontext *driContext;
424   __DRIcontext *__driContext;
425#endif
426#endif
427
428    /**
429     * The current read-drawable for this context.  Will be None if this
430     * context is not current to any drawable.
431     *
432     * \since Internal API version 20030606.
433     */
434   GLXDrawable currentReadable;
435
436   /**
437    * Pointer to client-state data that is private to libGL.  This is only
438    * used for indirect rendering contexts.
439    *
440    * No internal API version change was made for this change.  Client-side
441    * drivers should NEVER use this data or even care that it exists.
442    */
443   void *client_state_private;
444
445   /**
446    * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
447    */
448   int renderType;
449
450   /**
451    * \name Raw server GL version
452    *
453    * True core GL version supported by the server.  This is the raw value
454    * returned by the server, and it may not reflect what is actually
455    * supported (or reported) by the client-side library.
456    */
457   /*@{ */
458   int server_major;        /**< Major version number. */
459   int server_minor;        /**< Minor version number. */
460   /*@} */
461
462   /**
463    * Thread ID we're currently current in. Zero if none.
464    */
465   unsigned long thread_id;
466
467   char gl_extension_bits[__GL_EXT_BYTES];
468
469   const struct glx_context_vtable *vtable;
470};
471
472#define __glXSetError(gc,code)  \
473   if (!(gc)->error) {          \
474      (gc)->error = code;       \
475   }
476
477extern void __glFreeAttributeState(__GLXcontext *);
478
479/************************************************************************/
480
481/**
482 * The size of the largest drawing command known to the implementation
483 * that will use the GLXRender GLX command.  In this case it is
484 * \c glPolygonStipple.
485 */
486#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
487
488/**
489 * To keep the implementation fast, the code uses a "limit" pointer
490 * to determine when the drawing command buffer is too full to hold
491 * another fixed size command.  This constant defines the amount of
492 * space that must always be available in the drawing command buffer
493 * at all times for the implementation to work.  It is important that
494 * the number be just large enough, but not so large as to reduce the
495 * efficacy of the buffer.  The "+32" is just to keep the code working
496 * in case somebody counts wrong.
497 */
498#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
499
500/**
501 * This implementation uses a smaller threshold for switching
502 * to the RenderLarge protocol than the protcol requires so that
503 * large copies don't occur.
504 */
505#define __GLX_RENDER_CMD_SIZE_LIMIT 4096
506
507/**
508 * One of these records exists per screen of the display.  It contains
509 * a pointer to the config data for that screen (if the screen supports GL).
510 */
511struct __GLXscreenConfigsRec
512{
513    /**
514     * GLX extension string reported by the X-server.
515     */
516   const char *serverGLXexts;
517
518    /**
519     * GLX extension string to be reported to applications.  This is the
520     * set of extensions that the application can actually use.
521     */
522   char *effectiveGLXexts;
523
524   /**
525    * Context vtable to use for direct contexts on this screen
526    */
527   const struct glx_context_vtable *direct_context_vtable;
528
529#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
530    /**
531     * Per screen direct rendering interface functions and data.
532     */
533   __DRIscreen *__driScreen;
534   const __DRIcoreExtension *core;
535   const __DRIlegacyExtension *legacy;
536   const __DRIswrastExtension *swrast;
537   const __DRIdri2Extension *dri2;
538   __glxHashTable *drawHash;
539   Display *dpy;
540   int scr, fd;
541   void *driver;
542
543   __GLXDRIscreen *driScreen;
544
545   const __DRIconfig **driver_configs;
546
547#ifdef __DRI_COPY_SUB_BUFFER
548   const __DRIcopySubBufferExtension *driCopySubBuffer;
549#endif
550
551#ifdef __DRI_SWAP_CONTROL
552   const __DRIswapControlExtension *swapControl;
553#endif
554
555#ifdef __DRI_ALLOCATE
556   const __DRIallocateExtension *allocate;
557#endif
558
559#ifdef __DRI_FRAME_TRACKING
560   const __DRIframeTrackingExtension *frameTracking;
561#endif
562
563#ifdef __DRI_MEDIA_STREAM_COUNTER
564   const __DRImediaStreamCounterExtension *msc;
565#endif
566
567#ifdef __DRI_TEX_BUFFER
568   const __DRItexBufferExtension *texBuffer;
569#endif
570
571#ifdef __DRI2_FLUSH
572   const __DRI2flushExtension *f;
573#endif
574
575#ifdef __DRI2_CONFIG_QUERY
576   const __DRI2configQueryExtension *config;
577#endif
578
579#endif
580
581    /**
582     * Linked list of glx visuals and  fbconfigs for this screen.
583     */
584   __GLcontextModes *visuals, *configs;
585
586    /**
587     * Per-screen dynamic GLX extension tracking.  The \c direct_support
588     * field only contains enough bits for 64 extensions.  Should libGL
589     * ever need to track more than 64 GLX extensions, we can safely grow
590     * this field.  The \c __GLXscreenConfigs structure is not used outside
591     * libGL.
592     */
593   /*@{ */
594   unsigned char direct_support[8];
595   GLboolean ext_list_first_time;
596   /*@} */
597
598};
599
600/**
601 * Per display private data.  One of these records exists for each display
602 * that is using the OpenGL (GLX) extension.
603 */
604struct __GLXdisplayPrivateRec
605{
606    /**
607     * Back pointer to the display
608     */
609   Display *dpy;
610
611    /**
612     * The \c majorOpcode is common to all connections to the same server.
613     * It is also copied into the context structure.
614     */
615   int majorOpcode;
616
617    /**
618     * \name Server Version
619     *
620     * Major and minor version returned by the server during initialization.
621     */
622   /*@{ */
623   int majorVersion, minorVersion;
624   /*@} */
625
626    /**
627     * \name Storage for the servers GLX vendor and versions strings.
628     *
629     * These are the same for all screens on this display. These fields will
630     * be filled in on demand.
631     */
632   /*@{ */
633   const char *serverGLXvendor;
634   const char *serverGLXversion;
635   /*@} */
636
637    /**
638     * Configurations of visuals for all screens on this display.
639     * Also, per screen data which now includes the server \c GLX_EXTENSION
640     * string.
641     */
642   __GLXscreenConfigs *screenConfigs;
643
644#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
645    /**
646     * Per display direct rendering interface functions and data.
647     */
648   __GLXDRIdisplay *driswDisplay;
649   __GLXDRIdisplay *driDisplay;
650   __GLXDRIdisplay *dri2Display;
651#endif
652};
653
654
655extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *);
656
657extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber,
658                                GLint totalRequests,
659                                const GLvoid * data, GLint dataLen);
660
661extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
662                                  const GLvoid *, GLint);
663
664/* Initialize the GLX extension for dpy */
665extern __GLXdisplayPrivate *__glXInitialize(Display *);
666
667extern void __glXPreferEGL(int state);
668
669/************************************************************************/
670
671extern int __glXDebug;
672
673/* This is per-thread storage in an MT environment */
674#if defined( PTHREADS )
675
676extern void __glXSetCurrentContext(__GLXcontext * c);
677
678# if defined( GLX_USE_TLS )
679
680extern __thread void *__glX_tls_Context
681   __attribute__ ((tls_model("initial-exec")));
682
683#  define __glXGetCurrentContext() __glX_tls_Context
684
685# else
686
687extern __GLXcontext *__glXGetCurrentContext(void);
688
689# endif /* defined( GLX_USE_TLS ) */
690
691#else
692
693extern __GLXcontext *__glXcurrentContext;
694#define __glXGetCurrentContext() __glXcurrentContext
695#define __glXSetCurrentContext(gc) __glXcurrentContext = gc
696
697#endif /* defined( PTHREADS ) */
698
699extern void __glXSetCurrentContextNull(void);
700
701extern void __glXFreeContext(__GLXcontext *);
702
703
704/*
705** Global lock for all threads in this address space using the GLX
706** extension
707*/
708#if defined( PTHREADS )
709extern pthread_mutex_t __glXmutex;
710#define __glXLock()    pthread_mutex_lock(&__glXmutex)
711#define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
712#else
713#define __glXLock()
714#define __glXUnlock()
715#endif
716
717/*
718** Setup for a command.  Initialize the extension for dpy if necessary.
719*/
720extern CARD8 __glXSetupForCommand(Display * dpy);
721
722/************************************************************************/
723
724/*
725** Data conversion and packing support.
726*/
727
728extern const GLuint __glXDefaultPixelStore[9];
729
730/* Send an image to the server using RenderLarge. */
731extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim,
732                                GLint width, GLint height, GLint depth,
733                                GLenum format, GLenum type,
734                                const GLvoid * src, GLubyte * pc,
735                                GLubyte * modes);
736
737/* Return the size, in bytes, of some pixel data */
738extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
739
740/* Return the number of elements per group of a specified format*/
741extern GLint __glElementsPerGroup(GLenum format, GLenum type);
742
743/* Return the number of bytes per element, based on the element type (other
744** than GL_BITMAP).
745*/
746extern GLint __glBytesPerElement(GLenum type);
747
748/*
749** Fill the transport buffer with the data from the users buffer,
750** applying some of the pixel store modes (unpack modes) to the data
751** first.  As a side effect of this call, the "modes" field is
752** updated to contain the modes needed by the server to decode the
753** sent data.
754*/
755extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
756                          GLenum, const GLvoid *, GLubyte *, GLubyte *);
757
758/* Copy map data with a stride into a packed buffer */
759extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
760extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
761extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
762                          const GLfloat *, GLfloat *);
763extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
764                          const GLdouble *, GLdouble *);
765
766/*
767** Empty an image out of the reply buffer into the clients memory applying
768** the pack modes to pack back into the clients requested format.
769*/
770extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum,
771                           GLenum, const GLubyte *, GLvoid *);
772
773
774/*
775** Allocate and Initialize Vertex Array client state, and free.
776*/
777extern void __glXInitVertexArrayState(__GLXcontext *);
778extern void __glXFreeVertexArrayState(__GLXcontext *);
779
780/*
781** Inform the Server of the major and minor numbers and of the client
782** libraries extension string.
783*/
784extern void __glXClientInfo(Display * dpy, int opcode);
785
786/************************************************************************/
787
788/*
789** Declarations that should be in Xlib
790*/
791#ifdef __GL_USE_OUR_PROTOTYPES
792extern void _XFlush(Display *);
793extern Status _XReply(Display *, xReply *, int, Bool);
794extern void _XRead(Display *, void *, long);
795extern void _XSend(Display *, const void *, long);
796#endif
797
798
799extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config,
800                                                int count, const INT32 * bp,
801                                                Bool tagged_only,
802                                                Bool fbconfig_style_tags);
803
804extern char *__glXQueryServerString(Display * dpy, int opcode,
805                                    CARD32 screen, CARD32 name);
806extern char *__glXGetString(Display * dpy, int opcode,
807                            CARD32 screen, CARD32 name);
808
809extern char *__glXstrdup(const char *str);
810
811
812extern const char __glXGLClientVersion[];
813extern const char __glXGLClientExtensions[];
814
815/* Get the unadjusted system time */
816extern int __glXGetUST(int64_t * ust);
817
818extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
819                                    int32_t * numerator,
820                                    int32_t * denominator);
821
822#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
823GLboolean
824__driGetMscRateOML(__DRIdrawable * draw,
825                   int32_t * numerator, int32_t * denominator, void *private);
826
827/* So that dri2.c:DRI2WireToEvent() can access
828 * glx_info->codes->first_event */
829XExtDisplayInfo *__glXFindDisplay (Display *dpy);
830
831extern __GLXDRIdrawable *
832GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable, int *const scrn_num);
833
834#endif
835
836#endif /* !__GLX_client_h__ */
837