glxclient.h revision d8407755 
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/Xfuncproto.h>
43#include <X11/extensions/extutil.h>
44#define GLX_GLXEXT_PROTOTYPES
45#include <GL/glx.h>
46#include <GL/glxext.h>
47#include <string.h>
48#include <stdlib.h>
49#include <stdio.h>
50#include <stdint.h>
51#include <pthread.h>
52#include "GL/glxproto.h"
53#include "glxconfig.h"
54#include "glxhash.h"
55#include "util/macros.h"
56
57#include "glxextensions.h"
58
59#if defined(USE_LIBGLVND)
60#define _GLX_PUBLIC _X_HIDDEN
61#else
62#define _GLX_PUBLIC _X_EXPORT
63#endif
64
65#ifdef __cplusplus
66extern "C" {
67#endif
68
69
70#define GLX_MAJOR_VERSION 1       /* current version numbers */
71#define GLX_MINOR_VERSION 4
72
73#define __GLX_MAX_TEXTURE_UNITS 32
74
75struct glx_display;
76struct glx_context;
77
78/************************************************************************/
79
80#ifdef GLX_DIRECT_RENDERING
81
82extern void DRI_glXUseXFont(struct glx_context *ctx,
83			    Font font, int first, int count, int listbase);
84
85#endif
86
87#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
88
89/**
90 * Display dependent methods.  This structure is initialized during the
91 * \c driCreateDisplay call.
92 */
93typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
94typedef struct __GLXDRIscreenRec __GLXDRIscreen;
95typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
96
97struct __GLXDRIdisplayRec
98{
99    /**
100     * Method to destroy the private DRI display data.
101     */
102   void (*destroyDisplay) (__GLXDRIdisplay * display);
103
104   struct glx_screen *(*createScreen)(int screen, struct glx_display * priv);
105};
106
107struct __GLXDRIscreenRec {
108
109   void (*destroyScreen)(struct glx_screen *psc);
110
111   struct glx_context *(*createContext)(struct glx_screen *psc,
112					struct glx_config *config,
113					struct glx_context *shareList,
114					int renderType);
115
116   __GLXDRIdrawable *(*createDrawable)(struct glx_screen *psc,
117				       XID drawable,
118				       GLXDrawable glxDrawable,
119				       struct glx_config *config);
120
121   int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc,
122			  int64_t divisor, int64_t remainder, Bool flush);
123   void (*copySubBuffer)(__GLXDRIdrawable *pdraw,
124			 int x, int y, int width, int height, Bool flush);
125   int (*getDrawableMSC)(struct glx_screen *psc, __GLXDRIdrawable *pdraw,
126			 int64_t *ust, int64_t *msc, int64_t *sbc);
127   int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
128		     int64_t divisor, int64_t remainder, int64_t *ust,
129		     int64_t *msc, int64_t *sbc);
130   int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
131		     int64_t *msc, int64_t *sbc);
132   int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
133   int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
134   int (*getBufferAge)(__GLXDRIdrawable *pdraw);
135};
136
137struct __GLXDRIdrawableRec
138{
139   void (*destroyDrawable) (__GLXDRIdrawable * drawable);
140
141   XID xDrawable;
142   XID drawable;
143   struct glx_screen *psc;
144   GLenum textureTarget;
145   GLenum textureFormat;        /* EXT_texture_from_pixmap support */
146   unsigned long eventMask;
147   int refcount;
148};
149
150/*
151** Function to create and DRI display data and initialize the display
152** dependent methods.
153*/
154extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
155extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
156extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
157extern __GLXDRIdisplay *dri3_create_display(Display * dpy);
158extern __GLXDRIdisplay *driwindowsCreateDisplay(Display * dpy);
159
160/*
161**
162*/
163extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
164extern unsigned dri2GetSwapEventType(Display *dpy, XID drawable);
165
166/*
167** Functions to obtain driver configuration information from a direct
168** rendering client application
169*/
170extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
171
172extern const char *glXGetDriverConfig(const char *driverName);
173
174#endif
175
176/************************************************************************/
177
178#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
179
180typedef struct __GLXpixelStoreModeRec
181{
182   GLboolean swapEndian;
183   GLboolean lsbFirst;
184   GLuint rowLength;
185   GLuint imageHeight;
186   GLuint imageDepth;
187   GLuint skipRows;
188   GLuint skipPixels;
189   GLuint skipImages;
190   GLuint alignment;
191} __GLXpixelStoreMode;
192
193
194typedef struct __GLXattributeRec
195{
196   GLuint mask;
197
198    /**
199     * Pixel storage state.  Most of the pixel store mode state is kept
200     * here and used by the client code to manage the packing and
201     * unpacking of data sent to/received from the server.
202     */
203   __GLXpixelStoreMode storePack, storeUnpack;
204
205    /**
206     * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
207     * disabled?
208     */
209   GLboolean NoDrawArraysProtocol;
210
211    /**
212     * Vertex Array storage state.  The vertex array component
213     * state is stored here and is used to manage the packing of
214     * DrawArrays data sent to the server.
215     */
216   struct array_state_vector *array_state;
217} __GLXattribute;
218
219typedef struct __GLXattributeMachineRec
220{
221   __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
222   __GLXattribute **stackPointer;
223} __GLXattributeMachine;
224
225struct mesa_glinterop_device_info;
226struct mesa_glinterop_export_in;
227struct mesa_glinterop_export_out;
228
229struct glx_context_vtable {
230   void (*destroy)(struct glx_context *ctx);
231   int (*bind)(struct glx_context *context, struct glx_context *old,
232	       GLXDrawable draw, GLXDrawable read);
233   void (*unbind)(struct glx_context *context, struct glx_context *new_ctx);
234   void (*wait_gl)(struct glx_context *ctx);
235   void (*wait_x)(struct glx_context *ctx);
236   void (*use_x_font)(struct glx_context *ctx,
237		      Font font, int first, int count, int listBase);
238   void (*bind_tex_image)(Display * dpy,
239			  GLXDrawable drawable,
240			  int buffer, const int *attrib_list);
241   void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
242   void * (*get_proc_address)(const char *symbol);
243   int (*interop_query_device_info)(struct glx_context *ctx,
244                                    struct mesa_glinterop_device_info *out);
245   int (*interop_export_object)(struct glx_context *ctx,
246                                struct mesa_glinterop_export_in *in,
247                                struct mesa_glinterop_export_out *out);
248};
249
250/**
251 * GLX state that needs to be kept on the client.  One of these records
252 * exist for each context that has been made current by this client.
253 */
254struct glx_context
255{
256    /**
257     * \name Drawing command buffer.
258     *
259     * Drawing commands are packed into this buffer before being sent as a
260     * single GLX protocol request.  The buffer is sent when it overflows or
261     * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
262     * in the buffer to be filled.  \c limit is described above in the buffer
263     * slop discussion.
264     *
265     * Commands that require large amounts of data to be transfered will
266     * also use this buffer to hold a header that describes the large
267     * command.
268     *
269     * These must be the first 6 fields since they are static initialized
270     * in the dummy context in glxext.c
271     */
272   /*@{ */
273   GLubyte *buf;
274   GLubyte *pc;
275   GLubyte *limit;
276   GLubyte *bufEnd;
277   GLint bufSize;
278   /*@} */
279
280   const struct glx_context_vtable *vtable;
281
282    /**
283     * The XID of this rendering context.  When the context is created a
284     * new XID is allocated.  This is set to None when the context is
285     * destroyed but is still current to some thread. In this case the
286     * context will be freed on next MakeCurrent.
287     */
288   XID xid;
289
290    /**
291     * The XID of the \c shareList context.
292     */
293   XID share_xid;
294
295    /**
296     * Screen number.
297     */
298   GLint screen;
299   struct glx_screen *psc;
300
301    /**
302     * \c GL_TRUE if the context was created with ImportContext, which
303     * means the server-side context was created by another X client.
304     */
305   GLboolean imported;
306
307    /**
308     * The context tag returned by MakeCurrent when this context is made
309     * current. This tag is used to identify the context that a thread has
310     * current so that proper server context management can be done.  It is
311     * used for all context specific commands (i.e., \c Render, \c RenderLarge,
312     * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
313     * context)).
314     */
315   GLXContextTag currentContextTag;
316
317    /**
318     * \name Rendering mode
319     *
320     * The rendering mode is kept on the client as well as the server.
321     * When \c glRenderMode is called, the buffer associated with the
322     * previous rendering mode (feedback or select) is filled.
323     */
324   /*@{ */
325   GLenum renderMode;
326   GLfloat *feedbackBuf;
327   GLuint *selectBuf;
328   /*@} */
329
330    /**
331     * Fill newImage with the unpacked form of \c oldImage getting it
332     * ready for transport to the server.
333     */
334   void (*fillImage) (struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
335                      GLenum, const GLvoid *, GLubyte *, GLubyte *);
336
337    /**
338     * Client side attribs.
339     */
340   __GLXattributeMachine attributes;
341
342    /**
343     * Client side error code.  This is set when client side gl API
344     * routines need to set an error because of a bad enumerant or
345     * running out of memory, etc.
346     */
347   GLenum error;
348
349    /**
350     * Whether this context does direct rendering.
351     */
352   Bool isDirect;
353
354#if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_APPLEGL)
355   void *driContext;
356#endif
357
358    /**
359     * \c dpy of current display for this context.  Will be \c NULL if not
360     * current to any display, or if this is the "dummy context".
361     */
362   Display *currentDpy;
363
364    /**
365     * The current drawable for this context.  Will be None if this
366     * context is not current to any drawable.  currentReadable is below.
367     */
368   GLXDrawable currentDrawable;
369
370    /**
371     * \name GL Constant Strings
372     *
373     * Constant strings that describe the server implementation
374     * These pertain to GL attributes, not to be confused with
375     * GLX versioning attributes.
376     */
377   /*@{ */
378   GLubyte *vendor;
379   GLubyte *renderer;
380   GLubyte *version;
381   GLubyte *extensions;
382   /*@} */
383
384    /**
385     * Maximum small render command size.  This is the smaller of 64k and
386     * the size of the above buffer.
387     */
388   GLint maxSmallRenderCommandSize;
389
390    /**
391     * Major opcode for the extension.  Copied here so a lookup isn't
392     * needed.
393     */
394   GLint majorOpcode;
395
396    /**
397     * Pointer to the config used to create this context.
398     */
399   struct glx_config *config;
400
401    /**
402     * The current read-drawable for this context.  Will be None if this
403     * context is not current to any drawable.
404     *
405     * \since Internal API version 20030606.
406     */
407   GLXDrawable currentReadable;
408
409   /**
410    * Pointer to client-state data that is private to libGL.  This is only
411    * used for indirect rendering contexts.
412    *
413    * No internal API version change was made for this change.  Client-side
414    * drivers should NEVER use this data or even care that it exists.
415    */
416   void *client_state_private;
417
418   /**
419    * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
420    */
421   int renderType;
422
423   /**
424    * \name Raw server GL version
425    *
426    * True core GL version supported by the server.  This is the raw value
427    * returned by the server, and it may not reflect what is actually
428    * supported (or reported) by the client-side library.
429    */
430   /*@{ */
431   int server_major;        /**< Major version number. */
432   int server_minor;        /**< Minor version number. */
433   /*@} */
434
435   /**
436    * Number of threads we're currently current in.
437    */
438   unsigned long thread_refcount;
439
440   /**
441    * GLX_ARB_create_context_no_error setting for this context.
442    * This needs to be kept here to enforce shared context rules.
443    */
444   Bool noError;
445
446   char gl_extension_bits[__GL_EXT_BYTES];
447};
448
449extern Bool
450glx_context_init(struct glx_context *gc,
451		 struct glx_screen *psc, struct glx_config *fbconfig);
452
453#define __glXSetError(gc,code)  \
454   if (!(gc)->error) {          \
455      (gc)->error = code;       \
456   }
457
458extern void __glFreeAttributeState(struct glx_context *);
459
460/************************************************************************/
461
462/**
463 * The size of the largest drawing command known to the implementation
464 * that will use the GLXRender GLX command.  In this case it is
465 * \c glPolygonStipple.
466 */
467#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
468
469/**
470 * To keep the implementation fast, the code uses a "limit" pointer
471 * to determine when the drawing command buffer is too full to hold
472 * another fixed size command.  This constant defines the amount of
473 * space that must always be available in the drawing command buffer
474 * at all times for the implementation to work.  It is important that
475 * the number be just large enough, but not so large as to reduce the
476 * efficacy of the buffer.  The "+32" is just to keep the code working
477 * in case somebody counts wrong.
478 */
479#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
480
481/**
482 * This implementation uses a smaller threshold for switching
483 * to the RenderLarge protocol than the protcol requires so that
484 * large copies don't occur.
485 */
486#define __GLX_RENDER_CMD_SIZE_LIMIT 4096
487
488/**
489 * One of these records exists per screen of the display.  It contains
490 * a pointer to the config data for that screen (if the screen supports GL).
491 */
492struct glx_screen_vtable {
493   struct glx_context *(*create_context)(struct glx_screen *psc,
494					 struct glx_config *config,
495					 struct glx_context *shareList,
496					 int renderType);
497
498   struct glx_context *(*create_context_attribs)(struct glx_screen *psc,
499						 struct glx_config *config,
500						 struct glx_context *shareList,
501						 unsigned num_attrib,
502						 const uint32_t *attribs,
503						 unsigned *error);
504   int (*query_renderer_integer)(struct glx_screen *psc,
505                                 int attribute,
506                                 unsigned int *value);
507   int (*query_renderer_string)(struct glx_screen *psc,
508                                int attribute,
509                                const char **value);
510};
511
512struct glx_screen
513{
514   const struct glx_screen_vtable *vtable;
515
516    /**
517     * GLX extension string reported by the X-server.
518     */
519   const char *serverGLXexts;
520
521    /**
522     * GLX extension string to be reported to applications.  This is the
523     * set of extensions that the application can actually use.
524     */
525   char *effectiveGLXexts;
526
527   struct glx_display *display;
528
529   Display *dpy;
530   int scr;
531
532#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
533    /**
534     * Per screen direct rendering interface functions and data.
535     */
536   __GLXDRIscreen *driScreen;
537#endif
538
539    /**
540     * Linked list of glx visuals and  fbconfigs for this screen.
541     */
542   struct glx_config *visuals, *configs;
543
544    /**
545     * Per-screen dynamic GLX extension tracking.  The \c direct_support
546     * field only contains enough bits for 64 extensions.  Should libGL
547     * ever need to track more than 64 GLX extensions, we can safely grow
548     * this field.  The \c struct glx_screen structure is not used outside
549     * libGL.
550     */
551   /*@{ */
552   unsigned char direct_support[8];
553   GLboolean ext_list_first_time;
554   /*@} */
555
556};
557
558/**
559 * Per display private data.  One of these records exists for each display
560 * that is using the OpenGL (GLX) extension.
561 */
562struct glx_display
563{
564   /* The extension protocol codes */
565   XExtCodes *codes;
566   struct glx_display *next;
567
568    /**
569     * Back pointer to the display
570     */
571   Display *dpy;
572
573    /**
574     * The \c majorOpcode is common to all connections to the same server.
575     * It is also copied into the context structure.
576     */
577   int majorOpcode;
578
579    /**
580     * \name Server Version
581     *
582     * Major and minor version returned by the server during initialization.
583     */
584   /*@{ */
585   int majorVersion, minorVersion;
586   /*@} */
587
588    /**
589     * \name Storage for the servers GLX vendor and versions strings.
590     *
591     * These are the same for all screens on this display. These fields will
592     * be filled in on demand.
593     */
594   /*@{ */
595   const char *serverGLXvendor;
596   const char *serverGLXversion;
597   /*@} */
598
599    /**
600     * Configurations of visuals for all screens on this display.
601     * Also, per screen data which now includes the server \c GLX_EXTENSION
602     * string.
603     */
604   struct glx_screen **screens;
605
606   __glxHashTable *glXDrawHash;
607
608#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
609   __glxHashTable *drawHash;
610
611    /**
612     * Per display direct rendering interface functions and data.
613     */
614   __GLXDRIdisplay *driswDisplay;
615   __GLXDRIdisplay *driDisplay;
616   __GLXDRIdisplay *dri2Display;
617   __GLXDRIdisplay *dri3Display;
618#endif
619#ifdef GLX_USE_WINDOWSGL
620   __GLXDRIdisplay *windowsdriDisplay;
621#endif
622};
623
624struct glx_drawable {
625   XID xDrawable;
626   XID drawable;
627
628   uint32_t lastEventSbc;
629   int64_t eventSbcWrap;
630};
631
632extern int
633glx_screen_init(struct glx_screen *psc,
634		int screen, struct glx_display * priv);
635extern void
636glx_screen_cleanup(struct glx_screen *psc);
637
638#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
639extern __GLXDRIdrawable *
640dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
641#endif
642
643extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *);
644
645extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber,
646                                GLint totalRequests,
647                                const GLvoid * data, GLint dataLen);
648
649extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint,
650                                  const GLvoid *, GLint);
651
652/* Initialize the GLX extension for dpy */
653extern struct glx_display *__glXInitialize(Display *);
654
655/************************************************************************/
656
657extern int __glXDebug;
658
659/* This is per-thread storage in an MT environment */
660
661extern void __glXSetCurrentContext(struct glx_context * c);
662
663# if defined( GLX_USE_TLS )
664
665extern __thread void *__glX_tls_Context
666   __attribute__ ((tls_model("initial-exec")));
667
668#if defined(__NetBSD__)
669#  define __glXGetCurrentContext() (likely(__glX_tls_Context) ? __glX_tls_Context : (void*)&dummyContext)
670#else
671#  define __glXGetCurrentContext() __glX_tls_Context
672#endif
673
674# else
675
676extern struct glx_context *__glXGetCurrentContext(void);
677
678# endif /* defined( GLX_USE_TLS ) */
679
680extern void __glXSetCurrentContextNull(void);
681
682
683/*
684** Global lock for all threads in this address space using the GLX
685** extension
686*/
687extern pthread_mutex_t __glXmutex;
688#define __glXLock()    pthread_mutex_lock(&__glXmutex)
689#define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
690
691/*
692** Setup for a command.  Initialize the extension for dpy if necessary.
693*/
694extern CARD8 __glXSetupForCommand(Display * dpy);
695
696/************************************************************************/
697
698/*
699** Data conversion and packing support.
700*/
701
702extern const GLuint __glXDefaultPixelStore[9];
703
704/* Send an image to the server using RenderLarge. */
705extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
706                                GLint width, GLint height, GLint depth,
707                                GLenum format, GLenum type,
708                                const GLvoid * src, GLubyte * pc,
709                                GLubyte * modes);
710
711/* Return the size, in bytes, of some pixel data */
712extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
713
714/* Return the number of elements per group of a specified format*/
715extern GLint __glElementsPerGroup(GLenum format, GLenum type);
716
717/* Return the number of bytes per element, based on the element type (other
718** than GL_BITMAP).
719*/
720extern GLint __glBytesPerElement(GLenum type);
721
722/*
723** Fill the transport buffer with the data from the users buffer,
724** applying some of the pixel store modes (unpack modes) to the data
725** first.  As a side effect of this call, the "modes" field is
726** updated to contain the modes needed by the server to decode the
727** sent data.
728*/
729extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
730                          GLenum, const GLvoid *, GLubyte *, GLubyte *);
731
732/* Copy map data with a stride into a packed buffer */
733extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
734extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
735extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
736                          const GLfloat *, GLfloat *);
737extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
738                          const GLdouble *, GLdouble *);
739
740/*
741** Empty an image out of the reply buffer into the clients memory applying
742** the pack modes to pack back into the clients requested format.
743*/
744extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
745                           GLenum, const GLubyte *, GLvoid *);
746
747
748/*
749** Allocate and Initialize Vertex Array client state, and free.
750*/
751extern void __glXInitVertexArrayState(struct glx_context *);
752extern void __glXFreeVertexArrayState(struct glx_context *);
753
754/*
755** Inform the Server of the major and minor numbers and of the client
756** libraries extension string.
757*/
758extern void __glXClientInfo(Display * dpy, int opcode);
759
760_X_HIDDEN void
761__glX_send_client_info(struct glx_display *glx_dpy);
762
763/************************************************************************/
764
765/*
766** Declarations that should be in Xlib
767*/
768#ifdef __GL_USE_OUR_PROTOTYPES
769extern void _XFlush(Display *);
770extern Status _XReply(Display *, xReply *, int, Bool);
771extern void _XRead(Display *, void *, long);
772extern void _XSend(Display *, const void *, long);
773#endif
774
775
776extern void __glXInitializeVisualConfigFromTags(struct glx_config * config,
777                                                int count, const INT32 * bp,
778                                                Bool tagged_only,
779                                                Bool fbconfig_style_tags);
780
781extern char *__glXQueryServerString(Display * dpy, int opcode,
782                                    CARD32 screen, CARD32 name);
783extern char *__glXGetString(Display * dpy, int opcode,
784                            CARD32 screen, CARD32 name);
785
786extern const char __glXGLClientVersion[];
787extern const char __glXGLClientExtensions[];
788
789/* Get the unadjusted system time */
790extern int __glXGetUST(int64_t * ust);
791
792extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
793                                    int32_t * numerator,
794                                    int32_t * denominator);
795
796#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
797extern GLboolean
798__glxGetMscRate(struct glx_screen *psc,
799		int32_t * numerator, int32_t * denominator);
800
801/* So that dri2.c:DRI2WireToEvent() can access
802 * glx_info->codes->first_event */
803XExtDisplayInfo *__glXFindDisplay (Display *dpy);
804
805extern void
806GarbageCollectDRIDrawables(struct glx_screen *psc);
807
808extern __GLXDRIdrawable *
809GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
810#endif
811
812extern struct glx_screen *GetGLXScreenConfigs(Display * dpy, int scrn);
813
814#ifdef GLX_USE_APPLEGL
815extern struct glx_screen *
816applegl_create_screen(int screen, struct glx_display * priv);
817
818extern struct glx_context *
819applegl_create_context(struct glx_screen *psc,
820			struct glx_config *mode,
821			struct glx_context *shareList, int renderType);
822
823extern int
824applegl_create_display(struct glx_display *display);
825#endif
826
827extern Bool validate_renderType_against_config(const struct glx_config *config,
828                                               int renderType);
829
830
831extern struct glx_drawable *GetGLXDrawable(Display *dpy, GLXDrawable drawable);
832extern int InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw,
833			   XID xDrawable, GLXDrawable drawable);
834extern void DestroyGLXDrawable(Display *dpy, GLXDrawable drawable);
835
836extern struct glx_context dummyContext;
837
838extern struct glx_screen *
839indirect_create_screen(int screen, struct glx_display * priv);
840extern struct glx_context *
841indirect_create_context(struct glx_screen *psc,
842			struct glx_config *mode,
843			struct glx_context *shareList, int renderType);
844extern struct glx_context *
845indirect_create_context_attribs(struct glx_screen *base,
846                                struct glx_config *config_base,
847                                struct glx_context *shareList,
848                                unsigned num_attribs,
849                                const uint32_t *attribs,
850                                unsigned *error);
851
852
853extern int __glXGetDrawableAttribute(Display * dpy, GLXDrawable drawable,
854                                     int attribute, unsigned int *value);
855
856#ifdef __cplusplus
857}
858#endif
859
860#endif /* !__GLX_client_h__ */
861