1 /*
2  * Mesa 3-D graphics library
3  * Version:  6.5
4  *
5  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included
15  * 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  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  */
24 
25 
26 #ifndef GLX_H
27 #define GLX_H
28 
29 
30 #ifdef __VMS
31 #include <GL/vms_x_fix.h>
32 # ifdef __cplusplus
33 /* VMS Xlib.h gives problems with C++.
34  * this avoids a bunch of trivial warnings */
35 #pragma message disable nosimpint
36 #endif
37 #endif
38 #include <X11/Xlib.h>
39 #include <X11/Xutil.h>
40 #ifdef __VMS
41 # ifdef __cplusplus
42 #pragma message enable nosimpint
43 #endif
44 #endif
45 #include <GL/gl.h>
46 
47 
48 #if defined(USE_MGL_NAMESPACE)
49 #include "glx_mangle.h"
50 #endif
51 
52 
53 #ifdef __cplusplus
54 extern "C" {
55 #endif
56 
57 
58 #define GLX_VERSION_1_1		1
59 #define GLX_VERSION_1_2		1
60 #define GLX_VERSION_1_3		1
61 #define GLX_VERSION_1_4		1
62 
63 #define GLX_EXTENSION_NAME   "GLX"
64 
65 
66 
67 /*
68  * Tokens for glXChooseVisual and glXGetConfig:
69  */
70 #define GLX_USE_GL		1
71 #define GLX_BUFFER_SIZE		2
72 #define GLX_LEVEL		3
73 #define GLX_RGBA		4
74 #define GLX_DOUBLEBUFFER	5
75 #define GLX_STEREO		6
76 #define GLX_AUX_BUFFERS		7
77 #define GLX_RED_SIZE		8
78 #define GLX_GREEN_SIZE		9
79 #define GLX_BLUE_SIZE		10
80 #define GLX_ALPHA_SIZE		11
81 #define GLX_DEPTH_SIZE		12
82 #define GLX_STENCIL_SIZE	13
83 #define GLX_ACCUM_RED_SIZE	14
84 #define GLX_ACCUM_GREEN_SIZE	15
85 #define GLX_ACCUM_BLUE_SIZE	16
86 #define GLX_ACCUM_ALPHA_SIZE	17
87 
88 
89 /*
90  * Error codes returned by glXGetConfig:
91  */
92 #define GLX_BAD_SCREEN		1
93 #define GLX_BAD_ATTRIBUTE	2
94 #define GLX_NO_EXTENSION	3
95 #define GLX_BAD_VISUAL		4
96 #define GLX_BAD_CONTEXT		5
97 #define GLX_BAD_VALUE       	6
98 #define GLX_BAD_ENUM		7
99 
100 
101 /*
102  * GLX 1.1 and later:
103  */
104 #define GLX_VENDOR		1
105 #define GLX_VERSION		2
106 #define GLX_EXTENSIONS 		3
107 
108 
109 /*
110  * GLX 1.3 and later:
111  */
112 #define GLX_CONFIG_CAVEAT		0x20
113 #define GLX_DONT_CARE			0xFFFFFFFF
114 #define GLX_X_VISUAL_TYPE		0x22
115 #define GLX_TRANSPARENT_TYPE		0x23
116 #define GLX_TRANSPARENT_INDEX_VALUE	0x24
117 #define GLX_TRANSPARENT_RED_VALUE	0x25
118 #define GLX_TRANSPARENT_GREEN_VALUE	0x26
119 #define GLX_TRANSPARENT_BLUE_VALUE	0x27
120 #define GLX_TRANSPARENT_ALPHA_VALUE	0x28
121 #define GLX_WINDOW_BIT			0x00000001
122 #define GLX_PIXMAP_BIT			0x00000002
123 #define GLX_PBUFFER_BIT			0x00000004
124 #define GLX_AUX_BUFFERS_BIT		0x00000010
125 #define GLX_FRONT_LEFT_BUFFER_BIT	0x00000001
126 #define GLX_FRONT_RIGHT_BUFFER_BIT	0x00000002
127 #define GLX_BACK_LEFT_BUFFER_BIT	0x00000004
128 #define GLX_BACK_RIGHT_BUFFER_BIT	0x00000008
129 #define GLX_DEPTH_BUFFER_BIT		0x00000020
130 #define GLX_STENCIL_BUFFER_BIT		0x00000040
131 #define GLX_ACCUM_BUFFER_BIT		0x00000080
132 #define GLX_NONE			0x8000
133 #define GLX_SLOW_CONFIG			0x8001
134 #define GLX_TRUE_COLOR			0x8002
135 #define GLX_DIRECT_COLOR		0x8003
136 #define GLX_PSEUDO_COLOR		0x8004
137 #define GLX_STATIC_COLOR		0x8005
138 #define GLX_GRAY_SCALE			0x8006
139 #define GLX_STATIC_GRAY			0x8007
140 #define GLX_TRANSPARENT_RGB		0x8008
141 #define GLX_TRANSPARENT_INDEX		0x8009
142 #define GLX_VISUAL_ID			0x800B
143 #define GLX_SCREEN			0x800C
144 #define GLX_NON_CONFORMANT_CONFIG	0x800D
145 #define GLX_DRAWABLE_TYPE		0x8010
146 #define GLX_RENDER_TYPE			0x8011
147 #define GLX_X_RENDERABLE		0x8012
148 #define GLX_FBCONFIG_ID			0x8013
149 #define GLX_RGBA_TYPE			0x8014
150 #define GLX_COLOR_INDEX_TYPE		0x8015
151 #define GLX_MAX_PBUFFER_WIDTH		0x8016
152 #define GLX_MAX_PBUFFER_HEIGHT		0x8017
153 #define GLX_MAX_PBUFFER_PIXELS		0x8018
154 #define GLX_PRESERVED_CONTENTS		0x801B
155 #define GLX_LARGEST_PBUFFER		0x801C
156 #define GLX_WIDTH			0x801D
157 #define GLX_HEIGHT			0x801E
158 #define GLX_EVENT_MASK			0x801F
159 #define GLX_DAMAGED			0x8020
160 #define GLX_SAVED			0x8021
161 #define GLX_WINDOW			0x8022
162 #define GLX_PBUFFER			0x8023
163 #define GLX_PBUFFER_HEIGHT              0x8040
164 #define GLX_PBUFFER_WIDTH               0x8041
165 #define GLX_RGBA_BIT			0x00000001
166 #define GLX_COLOR_INDEX_BIT		0x00000002
167 #define GLX_PBUFFER_CLOBBER_MASK	0x08000000
168 
169 
170 /*
171  * GLX 1.4 and later:
172  */
173 #define GLX_SAMPLE_BUFFERS              0x186a0 /*100000*/
174 #define GLX_SAMPLES                     0x186a1 /*100001*/
175 
176 
177 
178 typedef struct __GLXcontextRec *GLXContext;
179 typedef XID GLXPixmap;
180 typedef XID GLXDrawable;
181 /* GLX 1.3 and later */
182 typedef struct __GLXFBConfigRec *GLXFBConfig;
183 typedef XID GLXFBConfigID;
184 typedef XID GLXContextID;
185 typedef XID GLXWindow;
186 typedef XID GLXPbuffer;
187 
188 
189 /*
190 ** Events.
191 ** __GLX_NUMBER_EVENTS is set to 17 to account for the BufferClobberSGIX
192 **  event - this helps initialization if the server supports the pbuffer
193 **  extension and the client doesn't.
194 */
195 #define GLX_PbufferClobber	0
196 #define GLX_BufferSwapComplete	1
197 
198 #define __GLX_NUMBER_EVENTS 17
199 
200 extern XVisualInfo* glXChooseVisual( Display *dpy, int screen,
201 				     int *attribList );
202 
203 extern GLXContext glXCreateContext( Display *dpy, XVisualInfo *vis,
204 				    GLXContext shareList, Bool direct );
205 
206 extern void glXDestroyContext( Display *dpy, GLXContext ctx );
207 
208 extern Bool glXMakeCurrent( Display *dpy, GLXDrawable drawable,
209 			    GLXContext ctx);
210 
211 extern void glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
212 			    unsigned long mask );
213 
214 extern void glXSwapBuffers( Display *dpy, GLXDrawable drawable );
215 
216 extern GLXPixmap glXCreateGLXPixmap( Display *dpy, XVisualInfo *visual,
217 				     Pixmap pixmap );
218 
219 extern void glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap );
220 
221 extern Bool glXQueryExtension( Display *dpy, int *errorb, int *event );
222 
223 extern Bool glXQueryVersion( Display *dpy, int *maj, int *min );
224 
225 extern Bool glXIsDirect( Display *dpy, GLXContext ctx );
226 
227 extern int glXGetConfig( Display *dpy, XVisualInfo *visual,
228 			 int attrib, int *value );
229 
230 extern GLXContext glXGetCurrentContext( void );
231 
232 extern GLXDrawable glXGetCurrentDrawable( void );
233 
234 extern void glXWaitGL( void );
235 
236 extern void glXWaitX( void );
237 
238 extern void glXUseXFont( Font font, int first, int count, int list );
239 
240 
241 
242 /* GLX 1.1 and later */
243 extern const char *glXQueryExtensionsString( Display *dpy, int screen );
244 
245 extern const char *glXQueryServerString( Display *dpy, int screen, int name );
246 
247 extern const char *glXGetClientString( Display *dpy, int name );
248 
249 
250 /* GLX 1.2 and later */
251 extern Display *glXGetCurrentDisplay( void );
252 
253 
254 /* GLX 1.3 and later */
255 extern GLXFBConfig *glXChooseFBConfig( Display *dpy, int screen,
256                                        const int *attribList, int *nitems );
257 
258 extern int glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
259                                  int attribute, int *value );
260 
261 extern GLXFBConfig *glXGetFBConfigs( Display *dpy, int screen,
262                                      int *nelements );
263 
264 extern XVisualInfo *glXGetVisualFromFBConfig( Display *dpy,
265                                               GLXFBConfig config );
266 
267 extern GLXWindow glXCreateWindow( Display *dpy, GLXFBConfig config,
268                                   Window win, const int *attribList );
269 
270 extern void glXDestroyWindow( Display *dpy, GLXWindow window );
271 
272 extern GLXPixmap glXCreatePixmap( Display *dpy, GLXFBConfig config,
273                                   Pixmap pixmap, const int *attribList );
274 
275 extern void glXDestroyPixmap( Display *dpy, GLXPixmap pixmap );
276 
277 extern GLXPbuffer glXCreatePbuffer( Display *dpy, GLXFBConfig config,
278                                     const int *attribList );
279 
280 extern void glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf );
281 
282 extern void glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
283                               unsigned int *value );
284 
285 extern GLXContext glXCreateNewContext( Display *dpy, GLXFBConfig config,
286                                        int renderType, GLXContext shareList,
287                                        Bool direct );
288 
289 extern Bool glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
290                                    GLXDrawable read, GLXContext ctx );
291 
292 extern GLXDrawable glXGetCurrentReadDrawable( void );
293 
294 extern int glXQueryContext( Display *dpy, GLXContext ctx, int attribute,
295                             int *value );
296 
297 extern void glXSelectEvent( Display *dpy, GLXDrawable drawable,
298                             unsigned long mask );
299 
300 extern void glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
301                                  unsigned long *mask );
302 
303 /* GLX 1.3 function pointer typedefs */
304 typedef GLXFBConfig * (* PFNGLXGETFBCONFIGSPROC) (Display *dpy, int screen, int *nelements);
305 typedef GLXFBConfig * (* PFNGLXCHOOSEFBCONFIGPROC) (Display *dpy, int screen, const int *attrib_list, int *nelements);
306 typedef int (* PFNGLXGETFBCONFIGATTRIBPROC) (Display *dpy, GLXFBConfig config, int attribute, int *value);
307 typedef XVisualInfo * (* PFNGLXGETVISUALFROMFBCONFIGPROC) (Display *dpy, GLXFBConfig config);
308 typedef GLXWindow (* PFNGLXCREATEWINDOWPROC) (Display *dpy, GLXFBConfig config, Window win, const int *attrib_list);
309 typedef void (* PFNGLXDESTROYWINDOWPROC) (Display *dpy, GLXWindow win);
310 typedef GLXPixmap (* PFNGLXCREATEPIXMAPPROC) (Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attrib_list);
311 typedef void (* PFNGLXDESTROYPIXMAPPROC) (Display *dpy, GLXPixmap pixmap);
312 typedef GLXPbuffer (* PFNGLXCREATEPBUFFERPROC) (Display *dpy, GLXFBConfig config, const int *attrib_list);
313 typedef void (* PFNGLXDESTROYPBUFFERPROC) (Display *dpy, GLXPbuffer pbuf);
314 typedef void (* PFNGLXQUERYDRAWABLEPROC) (Display *dpy, GLXDrawable draw, int attribute, unsigned int *value);
315 typedef GLXContext (* PFNGLXCREATENEWCONTEXTPROC) (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
316 typedef Bool (* PFNGLXMAKECONTEXTCURRENTPROC) (Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
317 typedef GLXDrawable (* PFNGLXGETCURRENTREADDRAWABLEPROC) (void);
318 typedef Display * (* PFNGLXGETCURRENTDISPLAYPROC) (void);
319 typedef int (* PFNGLXQUERYCONTEXTPROC) (Display *dpy, GLXContext ctx, int attribute, int *value);
320 typedef void (* PFNGLXSELECTEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long event_mask);
321 typedef void (* PFNGLXGETSELECTEDEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long *event_mask);
322 
323 
324 /*
325  * ARB 2. GLX_ARB_get_proc_address
326  */
327 #ifndef GLX_ARB_get_proc_address
328 #define GLX_ARB_get_proc_address 1
329 
330 typedef void (*__GLXextFuncPtr)(void);
331 extern __GLXextFuncPtr glXGetProcAddressARB (const GLubyte *);
332 
333 #endif /* GLX_ARB_get_proc_address */
334 
335 
336 
337 /* GLX 1.4 and later */
338 extern void (*glXGetProcAddress(const GLubyte *procname))( void );
339 
340 /* GLX 1.4 function pointer typedefs */
341 typedef __GLXextFuncPtr (* PFNGLXGETPROCADDRESSPROC) (const GLubyte *procName);
342 
343 
344 #ifndef GLX_GLXEXT_LEGACY
345 
346 #include <GL/glxext.h>
347 
348 #endif /* GLX_GLXEXT_LEGACY */
349 
350 
351 /**
352  ** The following aren't in glxext.h yet.
353  **/
354 
355 
356 /*
357  * ???. GLX_NV_vertex_array_range
358  */
359 #ifndef GLX_NV_vertex_array_range
360 #define GLX_NV_vertex_array_range
361 
362 extern void *glXAllocateMemoryNV(GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
363 extern void glXFreeMemoryNV(GLvoid *pointer);
364 typedef void * ( * PFNGLXALLOCATEMEMORYNVPROC) (GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
365 typedef void ( * PFNGLXFREEMEMORYNVPROC) (GLvoid *pointer);
366 
367 #endif /* GLX_NV_vertex_array_range */
368 
369 
370 /*
371  * ARB ?. GLX_ARB_render_texture
372  * XXX This was never finalized!
373  */
374 #ifndef GLX_ARB_render_texture
375 #define GLX_ARB_render_texture 1
376 
377 extern Bool glXBindTexImageARB(Display *dpy, GLXPbuffer pbuffer, int buffer);
378 extern Bool glXReleaseTexImageARB(Display *dpy, GLXPbuffer pbuffer, int buffer);
379 extern Bool glXDrawableAttribARB(Display *dpy, GLXDrawable draw, const int *attribList);
380 
381 #endif /* GLX_ARB_render_texture */
382 
383 
384 /*
385  * Remove this when glxext.h is updated.
386  */
387 #ifndef GLX_NV_float_buffer
388 #define GLX_NV_float_buffer 1
389 
390 #define GLX_FLOAT_COMPONENTS_NV         0x20B0
391 
392 #endif /* GLX_NV_float_buffer */
393 
394 
395 
396 /*
397  * #?. GLX_MESA_swap_frame_usage
398  */
399 #ifndef GLX_MESA_swap_frame_usage
400 #define GLX_MESA_swap_frame_usage 1
401 
402 extern int glXGetFrameUsageMESA(Display *dpy, GLXDrawable drawable, float *usage);
403 extern int glXBeginFrameTrackingMESA(Display *dpy, GLXDrawable drawable);
404 extern int glXEndFrameTrackingMESA(Display *dpy, GLXDrawable drawable);
405 extern int glXQueryFrameTrackingMESA(Display *dpy, GLXDrawable drawable, int64_t *swapCount, int64_t *missedFrames, float *lastMissedUsage);
406 
407 typedef int (*PFNGLXGETFRAMEUSAGEMESAPROC) (Display *dpy, GLXDrawable drawable, float *usage);
408 typedef int (*PFNGLXBEGINFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable);
409 typedef int (*PFNGLXENDFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable);
410 typedef int (*PFNGLXQUERYFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable, int64_t *swapCount, int64_t *missedFrames, float *lastMissedUsage);
411 
412 #endif /* GLX_MESA_swap_frame_usage */
413 
414 
415 
416 /*
417  * #?. GLX_MESA_swap_control
418  */
419 #ifndef GLX_MESA_swap_control
420 #define GLX_MESA_swap_control 1
421 
422 extern int glXSwapIntervalMESA(unsigned int interval);
423 extern int glXGetSwapIntervalMESA(void);
424 
425 typedef int (*PFNGLXSWAPINTERVALMESAPROC)(unsigned int interval);
426 typedef int (*PFNGLXGETSWAPINTERVALMESAPROC)(void);
427 
428 #endif /* GLX_MESA_swap_control */
429 
430 
431 
432 /*
433  * #?. GLX_EXT_texture_from_pixmap
434  * XXX not finished?
435  */
436 #ifndef GLX_EXT_texture_from_pixmap
437 #define GLX_EXT_texture_from_pixmap 1
438 
439 #define GLX_BIND_TO_TEXTURE_RGB_EXT        0x20D0
440 #define GLX_BIND_TO_TEXTURE_RGBA_EXT       0x20D1
441 #define GLX_BIND_TO_MIPMAP_TEXTURE_EXT     0x20D2
442 #define GLX_BIND_TO_TEXTURE_TARGETS_EXT    0x20D3
443 #define GLX_Y_INVERTED_EXT                 0x20D4
444 
445 #define GLX_TEXTURE_FORMAT_EXT             0x20D5
446 #define GLX_TEXTURE_TARGET_EXT             0x20D6
447 #define GLX_MIPMAP_TEXTURE_EXT             0x20D7
448 
449 #define GLX_TEXTURE_FORMAT_NONE_EXT        0x20D8
450 #define GLX_TEXTURE_FORMAT_RGB_EXT         0x20D9
451 #define GLX_TEXTURE_FORMAT_RGBA_EXT        0x20DA
452 
453 #define GLX_TEXTURE_1D_BIT_EXT             0x00000001
454 #define GLX_TEXTURE_2D_BIT_EXT             0x00000002
455 #define GLX_TEXTURE_RECTANGLE_BIT_EXT      0x00000004
456 
457 #define GLX_TEXTURE_1D_EXT                 0x20DB
458 #define GLX_TEXTURE_2D_EXT                 0x20DC
459 #define GLX_TEXTURE_RECTANGLE_EXT          0x20DD
460 
461 #define GLX_FRONT_LEFT_EXT                 0x20DE
462 #define GLX_FRONT_RIGHT_EXT                0x20DF
463 #define GLX_BACK_LEFT_EXT                  0x20E0
464 #define GLX_BACK_RIGHT_EXT                 0x20E1
465 #define GLX_FRONT_EXT                      GLX_FRONT_LEFT_EXT
466 #define GLX_BACK_EXT                       GLX_BACK_LEFT_EXT
467 #define GLX_AUX0_EXT                       0x20E2
468 #define GLX_AUX1_EXT                       0x20E3
469 #define GLX_AUX2_EXT                       0x20E4
470 #define GLX_AUX3_EXT                       0x20E5
471 #define GLX_AUX4_EXT                       0x20E6
472 #define GLX_AUX5_EXT                       0x20E7
473 #define GLX_AUX6_EXT                       0x20E8
474 #define GLX_AUX7_EXT                       0x20E9
475 #define GLX_AUX8_EXT                       0x20EA
476 #define GLX_AUX9_EXT                       0x20EB
477 
478 extern void glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer, const int *attrib_list);
479 extern void glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer);
480 
481 #endif /* GLX_EXT_texture_from_pixmap */
482 
483 
484 
485 
486 /*** Should these go here, or in another header? */
487 /*
488 ** GLX Events
489 */
490 typedef struct {
491     int event_type;		/* GLX_DAMAGED or GLX_SAVED */
492     int draw_type;		/* GLX_WINDOW or GLX_PBUFFER */
493     unsigned long serial;	/* # of last request processed by server */
494     Bool send_event;		/* true if this came for SendEvent request */
495     Display *display;		/* display the event was read from */
496     GLXDrawable drawable;	/* XID of Drawable */
497     unsigned int buffer_mask;	/* mask indicating which buffers are affected */
498     unsigned int aux_buffer;	/* which aux buffer was affected */
499     int x, y;
500     int width, height;
501     int count;			/* if nonzero, at least this many more */
502 } GLXPbufferClobberEvent;
503 
504 typedef struct {
505     int type;
506     unsigned long serial;	/* # of last request processed by server */
507     Bool send_event;		/* true if this came from a SendEvent request */
508     Display *display;		/* Display the event was read from */
509     GLXDrawable drawable;	/* drawable on which event was requested in event mask */
510     int event_type;
511     int64_t ust;
512     int64_t msc;
513     int64_t sbc;
514 } GLXBufferSwapComplete;
515 
516 typedef union __GLXEvent {
517     GLXPbufferClobberEvent glxpbufferclobber;
518     GLXBufferSwapComplete glxbufferswapcomplete;
519     long pad[24];
520 } GLXEvent;
521 
522 #ifdef __cplusplus
523 }
524 #endif
525 
526 #endif
527