stw_context.c revision 7ec681f3 
1/**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include <windows.h>
29
30#define WGL_WGLEXT_PROTOTYPES
31
32#include <GL/gl.h>
33#include <GL/wglext.h>
34
35#include "pipe/p_compiler.h"
36#include "pipe/p_context.h"
37#include "pipe/p_state.h"
38#include "util/compiler.h"
39#include "util/u_memory.h"
40#include "util/u_atomic.h"
41#include "hud/hud_context.h"
42
43#include "gldrv.h"
44#include "stw_device.h"
45#include "stw_winsys.h"
46#include "stw_framebuffer.h"
47#include "stw_pixelformat.h"
48#include "stw_context.h"
49#include "stw_tls.h"
50
51
52struct stw_context *
53stw_current_context(void)
54{
55   struct st_context_iface *st;
56
57   st = (stw_dev) ? stw_dev->stapi->get_current(stw_dev->stapi) : NULL;
58
59   return (struct stw_context *) ((st) ? st->st_manager_private : NULL);
60}
61
62
63BOOL APIENTRY
64DrvCopyContext(DHGLRC dhrcSource, DHGLRC dhrcDest, UINT fuMask)
65{
66   struct stw_context *src;
67   struct stw_context *dst;
68   BOOL ret = FALSE;
69
70   if (!stw_dev)
71      return FALSE;
72
73   stw_lock_contexts(stw_dev);
74
75   src = stw_lookup_context_locked( dhrcSource );
76   dst = stw_lookup_context_locked( dhrcDest );
77
78   if (src && dst) {
79      /* FIXME */
80      assert(0);
81      (void) src;
82      (void) dst;
83      (void) fuMask;
84   }
85
86   stw_unlock_contexts(stw_dev);
87
88   return ret;
89}
90
91
92BOOL APIENTRY
93DrvShareLists(DHGLRC dhglrc1, DHGLRC dhglrc2)
94{
95   struct stw_context *ctx1;
96   struct stw_context *ctx2;
97   BOOL ret = FALSE;
98
99   if (!stw_dev)
100      return FALSE;
101
102   stw_lock_contexts(stw_dev);
103
104   ctx1 = stw_lookup_context_locked( dhglrc1 );
105   ctx2 = stw_lookup_context_locked( dhglrc2 );
106
107   if (ctx1 && ctx2 && ctx2->st->share) {
108      ret = ctx2->st->share(ctx2->st, ctx1->st);
109      ctx1->shared = TRUE;
110      ctx2->shared = TRUE;
111   }
112
113   stw_unlock_contexts(stw_dev);
114
115   return ret;
116}
117
118
119DHGLRC APIENTRY
120DrvCreateContext(HDC hdc)
121{
122   return DrvCreateLayerContext( hdc, 0 );
123}
124
125
126DHGLRC APIENTRY
127DrvCreateLayerContext(HDC hdc, INT iLayerPlane)
128{
129   struct stw_context *ctx = stw_create_context_attribs(hdc, iLayerPlane, 0, 1, 0, 0,
130                                                        WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
131                                                        0);
132   if (!ctx)
133      return 0;
134
135   DHGLRC ret = stw_create_context_handle(ctx, 0);
136   if (!ret)
137      stw_destroy_context(ctx);
138
139   return ret;
140}
141
142
143/**
144 * Return the stw pixel format that most closely matches the pixel format
145 * on HDC.
146 * Used to get a pixel format when SetPixelFormat() hasn't been called before.
147 */
148static int
149get_matching_pixel_format(HDC hdc)
150{
151   int iPixelFormat = GetPixelFormat(hdc);
152   PIXELFORMATDESCRIPTOR pfd;
153
154   if (!iPixelFormat)
155      return 0;
156   if (!DescribePixelFormat(hdc, iPixelFormat, sizeof(pfd), &pfd))
157      return 0;
158   return stw_pixelformat_choose(hdc, &pfd);
159}
160
161
162/**
163 * Called via DrvCreateContext(), DrvCreateLayerContext() and
164 * wglCreateContextAttribsARB() to actually create a rendering context.
165 */
166struct stw_context *
167stw_create_context_attribs(HDC hdc, INT iLayerPlane, struct stw_context *shareCtx,
168                           int majorVersion, int minorVersion,
169                           int contextFlags, int profileMask,
170                           int iPixelFormat)
171{
172   const struct stw_pixelformat_info *pfi;
173   struct st_context_attribs attribs;
174   struct stw_context *ctx = NULL;
175   enum st_context_error ctx_err = 0;
176
177   if (!stw_dev)
178      return 0;
179
180   if (iLayerPlane != 0)
181      return 0;
182
183   if (!iPixelFormat) {
184      /*
185       * GDI only knows about displayable pixel formats, so determine the pixel
186       * format from the framebuffer.
187       *
188       * This also allows to use a OpenGL DLL / ICD without installing.
189       */
190      struct stw_framebuffer *fb;
191      fb = stw_framebuffer_from_hdc(hdc);
192      if (fb) {
193         iPixelFormat = fb->iPixelFormat;
194         stw_framebuffer_unlock(fb);
195      }
196      else {
197         /* Applications should call SetPixelFormat before creating a context,
198          * but not all do, and the opengl32 runtime seems to use a default
199          * pixel format in some cases, so use that.
200          */
201         iPixelFormat = get_matching_pixel_format(hdc);
202         if (!iPixelFormat)
203            return 0;
204      }
205   }
206
207   pfi = stw_pixelformat_get_info( iPixelFormat );
208
209   if (shareCtx != NULL)
210      shareCtx->shared = TRUE;
211
212   ctx = CALLOC_STRUCT( stw_context );
213   if (ctx == NULL)
214      goto no_ctx;
215
216   ctx->hDrawDC = hdc;
217   ctx->hReadDC = hdc;
218   ctx->iPixelFormat = iPixelFormat;
219   ctx->shared = shareCtx != NULL;
220
221   memset(&attribs, 0, sizeof(attribs));
222   attribs.visual = pfi->stvis;
223   attribs.major = majorVersion;
224   attribs.minor = minorVersion;
225   if (contextFlags & WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB)
226      attribs.flags |= ST_CONTEXT_FLAG_FORWARD_COMPATIBLE;
227   if (contextFlags & WGL_CONTEXT_DEBUG_BIT_ARB)
228      attribs.flags |= ST_CONTEXT_FLAG_DEBUG;
229
230   switch (profileMask) {
231   case WGL_CONTEXT_CORE_PROFILE_BIT_ARB:
232      /* There are no profiles before OpenGL 3.2.  The
233       * WGL_ARB_create_context_profile spec says:
234       *
235       *     "If the requested OpenGL version is less than 3.2,
236       *     WGL_CONTEXT_PROFILE_MASK_ARB is ignored and the functionality
237       *     of the context is determined solely by the requested version."
238       */
239      if (majorVersion > 3 || (majorVersion == 3 && minorVersion >= 2)) {
240         attribs.profile = ST_PROFILE_OPENGL_CORE;
241         break;
242      }
243      FALLTHROUGH;
244   case WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB:
245      /*
246       * The spec also says:
247       *
248       *     "If version 3.1 is requested, the context returned may implement
249       *     any of the following versions:
250       *
251       *       * Version 3.1. The GL_ARB_compatibility extension may or may not
252       *         be implemented, as determined by the implementation.
253       *       * The core profile of version 3.2 or greater."
254       *
255       * But Mesa doesn't support GL_ARB_compatibility, while most prevalent
256       * Windows OpenGL implementations do, and unfortunately many Windows
257       * applications don't check whether they receive or not a context with
258       * GL_ARB_compatibility, so returning a core profile here does more harm
259       * than good.
260       */
261      attribs.profile = ST_PROFILE_DEFAULT;
262      break;
263   case WGL_CONTEXT_ES_PROFILE_BIT_EXT:
264      if (majorVersion >= 2) {
265         attribs.profile = ST_PROFILE_OPENGL_ES2;
266      } else {
267         attribs.profile = ST_PROFILE_OPENGL_ES1;
268      }
269      break;
270   default:
271      assert(0);
272      goto no_st_ctx;
273   }
274
275   attribs.options = stw_dev->st_options;
276
277   ctx->st = stw_dev->stapi->create_context(stw_dev->stapi,
278         stw_dev->smapi, &attribs, &ctx_err, shareCtx ? shareCtx->st : NULL);
279   if (ctx->st == NULL)
280      goto no_st_ctx;
281
282   ctx->st->st_manager_private = (void *) ctx;
283
284   if (ctx->st->cso_context) {
285      ctx->hud = hud_create(ctx->st->cso_context, ctx->st, NULL);
286   }
287
288   return ctx;
289
290no_st_ctx:
291   FREE(ctx);
292no_ctx:
293   return NULL;
294}
295
296DHGLRC
297stw_create_context_handle(struct stw_context *ctx, DHGLRC handle)
298{
299   assert(ctx->dhglrc == 0);
300
301   stw_lock_contexts(stw_dev);
302   if (handle) {
303      /* We're replacing the context data for this handle. See the
304       * wglCreateContextAttribsARB() function.
305       */
306      struct stw_context *old_ctx =
307         stw_lookup_context_locked((unsigned) handle);
308      if (old_ctx) {
309         stw_destroy_context(old_ctx);
310      }
311
312      /* replace table entry */
313      handle_table_set(stw_dev->ctx_table, (unsigned) handle, ctx);
314   }
315   else {
316      /* create new table entry */
317      handle = (DHGLRC) handle_table_add(stw_dev->ctx_table, ctx);
318   }
319
320   ctx->dhglrc = handle;
321
322   stw_unlock_contexts(stw_dev);
323
324   return ctx->dhglrc;
325}
326
327void
328stw_destroy_context(struct stw_context *ctx)
329{
330   if (ctx->hud) {
331      hud_destroy(ctx->hud, NULL);
332   }
333
334   ctx->st->destroy(ctx->st);
335   FREE(ctx);
336}
337
338
339BOOL APIENTRY
340DrvDeleteContext(DHGLRC dhglrc)
341{
342   struct stw_context *ctx ;
343   BOOL ret = FALSE;
344
345   if (!stw_dev)
346      return FALSE;
347
348   stw_lock_contexts(stw_dev);
349   ctx = stw_lookup_context_locked(dhglrc);
350   handle_table_remove(stw_dev->ctx_table, dhglrc);
351   stw_unlock_contexts(stw_dev);
352
353   if (ctx) {
354      struct stw_context *curctx = stw_current_context();
355
356      /* Unbind current if deleting current context. */
357      if (curctx == ctx)
358         stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
359
360      stw_destroy_context(ctx);
361      ret = TRUE;
362   }
363
364   return ret;
365}
366
367BOOL
368stw_unbind_context(struct stw_context *ctx)
369{
370   if (!ctx)
371      return FALSE;
372
373   /* The expectation is that ctx is the same context which is
374    * current for this thread.  We should check that and return False
375    * if not the case.
376    */
377   if (ctx != stw_current_context())
378      return FALSE;
379
380   if (stw_make_current( NULL, NULL, NULL ) == FALSE)
381      return FALSE;
382
383   return TRUE;
384}
385
386BOOL APIENTRY
387DrvReleaseContext(DHGLRC dhglrc)
388{
389   struct stw_context *ctx;
390
391   if (!stw_dev)
392      return FALSE;
393
394   stw_lock_contexts(stw_dev);
395   ctx = stw_lookup_context_locked( dhglrc );
396   stw_unlock_contexts(stw_dev);
397
398   return stw_unbind_context(ctx);
399}
400
401
402DHGLRC
403stw_get_current_context( void )
404{
405   struct stw_context *ctx;
406
407   ctx = stw_current_context();
408   if (!ctx)
409      return 0;
410
411   return ctx->dhglrc;
412}
413
414
415HDC
416stw_get_current_dc( void )
417{
418   struct stw_context *ctx;
419
420   ctx = stw_current_context();
421   if (!ctx)
422      return NULL;
423
424   return ctx->hDrawDC;
425}
426
427HDC
428stw_get_current_read_dc( void )
429{
430   struct stw_context *ctx;
431
432   ctx = stw_current_context();
433   if (!ctx)
434      return NULL;
435
436   return ctx->hReadDC;
437}
438
439static void
440release_old_framebuffers(struct stw_framebuffer *old_fb, struct stw_framebuffer *old_fbRead,
441                         struct stw_context *old_ctx)
442{
443   if (old_fb || old_fbRead) {
444      stw_lock_framebuffers(stw_dev);
445      if (old_fb) {
446         stw_framebuffer_lock(old_fb);
447         stw_framebuffer_release_locked(old_fb, old_ctx->st);
448      }
449      if (old_fbRead) {
450         stw_framebuffer_lock(old_fbRead);
451         stw_framebuffer_release_locked(old_fbRead, old_ctx->st);
452      }
453      stw_unlock_framebuffers(stw_dev);
454   }
455}
456
457BOOL
458stw_make_current(struct stw_framebuffer *fb, struct stw_framebuffer *fbRead, struct stw_context *ctx)
459{
460   struct stw_context *old_ctx = NULL;
461   BOOL ret = FALSE;
462
463   if (!stw_dev)
464      return FALSE;
465
466   old_ctx = stw_current_context();
467   if (old_ctx != NULL) {
468      if (old_ctx == ctx) {
469         if (old_ctx->current_framebuffer == fb && old_ctx->current_read_framebuffer == fbRead) {
470            /* Return if already current. */
471            return TRUE;
472         }
473      } else {
474         if (old_ctx->shared) {
475            if (old_ctx->current_framebuffer) {
476               stw_st_flush(old_ctx->st, old_ctx->current_framebuffer->stfb,
477                            ST_FLUSH_FRONT | ST_FLUSH_WAIT);
478            } else {
479               struct pipe_fence_handle *fence = NULL;
480               old_ctx->st->flush(old_ctx->st,
481                                  ST_FLUSH_FRONT | ST_FLUSH_WAIT, &fence,
482                                  NULL, NULL);
483            }
484         } else {
485            if (old_ctx->current_framebuffer)
486               stw_st_flush(old_ctx->st, old_ctx->current_framebuffer->stfb,
487                            ST_FLUSH_FRONT);
488            else
489               old_ctx->st->flush(old_ctx->st, ST_FLUSH_FRONT, NULL, NULL, NULL);
490         }
491      }
492   }
493
494   if (ctx) {
495      if (!fb || !fbRead)
496         goto fail;
497
498      if (fb->iPixelFormat != ctx->iPixelFormat) {
499         SetLastError(ERROR_INVALID_PIXEL_FORMAT);
500         goto fail;
501      }
502      if (fbRead->iPixelFormat != ctx->iPixelFormat) {
503         SetLastError(ERROR_INVALID_PIXEL_FORMAT);
504         goto fail;
505      }
506
507      stw_framebuffer_lock(fb);
508      stw_framebuffer_update(fb);
509      stw_framebuffer_reference_locked(fb);
510      stw_framebuffer_unlock(fb);
511
512      stw_framebuffer_lock(fbRead);
513      if (fbRead != fb)
514         stw_framebuffer_update(fbRead);
515      stw_framebuffer_reference_locked(fbRead);
516      stw_framebuffer_unlock(fbRead);
517
518      struct stw_framebuffer *old_fb = ctx->current_framebuffer;
519      struct stw_framebuffer *old_fbRead = ctx->current_read_framebuffer;
520      ctx->current_framebuffer = fb;
521      ctx->current_read_framebuffer = fbRead;
522
523      ret = stw_dev->stapi->make_current(stw_dev->stapi, ctx->st,
524                                          fb->stfb, fbRead->stfb);
525
526      /* Release the old framebuffers from this context. */
527      release_old_framebuffers(old_fb, old_fbRead, ctx);
528
529fail:
530      /* fb and fbRead must be unlocked at this point. */
531      if (fb)
532         assert(!stw_own_mutex(&fb->mutex));
533      if (fbRead)
534         assert(!stw_own_mutex(&fbRead->mutex));
535
536      /* On failure, make the thread's current rendering context not current
537       * before returning.
538       */
539      if (!ret) {
540         stw_make_current(NULL, NULL, NULL);
541      }
542   } else {
543      ret = stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
544   }
545
546   /* Unreference the previous framebuffer if any. It must be done after
547    * make_current, as it can be referenced inside.
548    */
549   if (old_ctx && old_ctx != ctx) {
550      release_old_framebuffers(old_ctx->current_framebuffer, old_ctx->current_read_framebuffer, old_ctx);
551      old_ctx->current_framebuffer = NULL;
552      old_ctx->current_read_framebuffer = NULL;
553   }
554
555   return ret;
556}
557
558static struct stw_framebuffer *
559get_unlocked_refd_framebuffer_from_dc(HDC hDC)
560{
561   if (!hDC)
562      return NULL;
563
564   /* This call locks fb's mutex */
565   struct stw_framebuffer *fb = stw_framebuffer_from_hdc(hDC);
566   if (!fb) {
567      /* Applications should call SetPixelFormat before creating a context,
568       * but not all do, and the opengl32 runtime seems to use a default
569       * pixel format in some cases, so we must create a framebuffer for
570       * those here.
571       */
572      int iPixelFormat = get_matching_pixel_format(hDC);
573      if (iPixelFormat)
574         fb = stw_framebuffer_create(WindowFromDC(hDC), iPixelFormat, STW_FRAMEBUFFER_WGL_WINDOW);
575      if (!fb)
576         return NULL;
577   }
578   stw_framebuffer_reference_locked(fb);
579   stw_framebuffer_unlock(fb);
580   return fb;
581}
582
583BOOL
584stw_make_current_by_handles(HDC hDrawDC, HDC hReadDC, DHGLRC dhglrc)
585{
586   struct stw_context *ctx = stw_lookup_context(dhglrc);
587   if (dhglrc && !ctx) {
588      stw_make_current_by_handles(NULL, NULL, 0);
589      return FALSE;
590   }
591
592   struct stw_framebuffer *fb = get_unlocked_refd_framebuffer_from_dc(hDrawDC);
593   if (ctx && !fb) {
594      stw_make_current_by_handles(NULL, NULL, 0);
595      return FALSE;
596   }
597
598   struct stw_framebuffer *fbRead = (hDrawDC == hReadDC || hReadDC == NULL) ?
599      fb : get_unlocked_refd_framebuffer_from_dc(hReadDC);
600   if (ctx && !fbRead) {
601      release_old_framebuffers(fb, NULL, ctx);
602      stw_make_current_by_handles(NULL, NULL, 0);
603      return FALSE;
604   }
605
606   BOOL success = stw_make_current(fb, fbRead, ctx);
607
608   if (ctx) {
609      if (success) {
610         ctx->hDrawDC = hDrawDC;
611         ctx->hReadDC = hReadDC;
612      } else {
613         ctx->hDrawDC = NULL;
614         ctx->hReadDC = NULL;
615      }
616
617      assert(fb && fbRead);
618      /* In the success case, the context took extra references on these framebuffers,
619       * so release our local references.
620       */
621      stw_lock_framebuffers(stw_dev);
622      stw_framebuffer_lock(fb);
623      stw_framebuffer_release_locked(fb, ctx->st);
624      if (fb != fbRead) {
625         stw_framebuffer_lock(fbRead);
626         stw_framebuffer_release_locked(fbRead, ctx->st);
627      }
628      stw_unlock_framebuffers(stw_dev);
629   }
630   return success;
631}
632
633
634/**
635 * Notify the current context that the framebuffer has become invalid.
636 */
637void
638stw_notify_current_locked( struct stw_framebuffer *fb )
639{
640   p_atomic_inc(&fb->stfb->stamp);
641}
642
643
644/**
645 * Although WGL allows different dispatch entrypoints per context
646 */
647static const GLCLTPROCTABLE cpt =
648{
649   OPENGL_VERSION_110_ENTRIES,
650   {
651      &glNewList,
652      &glEndList,
653      &glCallList,
654      &glCallLists,
655      &glDeleteLists,
656      &glGenLists,
657      &glListBase,
658      &glBegin,
659      &glBitmap,
660      &glColor3b,
661      &glColor3bv,
662      &glColor3d,
663      &glColor3dv,
664      &glColor3f,
665      &glColor3fv,
666      &glColor3i,
667      &glColor3iv,
668      &glColor3s,
669      &glColor3sv,
670      &glColor3ub,
671      &glColor3ubv,
672      &glColor3ui,
673      &glColor3uiv,
674      &glColor3us,
675      &glColor3usv,
676      &glColor4b,
677      &glColor4bv,
678      &glColor4d,
679      &glColor4dv,
680      &glColor4f,
681      &glColor4fv,
682      &glColor4i,
683      &glColor4iv,
684      &glColor4s,
685      &glColor4sv,
686      &glColor4ub,
687      &glColor4ubv,
688      &glColor4ui,
689      &glColor4uiv,
690      &glColor4us,
691      &glColor4usv,
692      &glEdgeFlag,
693      &glEdgeFlagv,
694      &glEnd,
695      &glIndexd,
696      &glIndexdv,
697      &glIndexf,
698      &glIndexfv,
699      &glIndexi,
700      &glIndexiv,
701      &glIndexs,
702      &glIndexsv,
703      &glNormal3b,
704      &glNormal3bv,
705      &glNormal3d,
706      &glNormal3dv,
707      &glNormal3f,
708      &glNormal3fv,
709      &glNormal3i,
710      &glNormal3iv,
711      &glNormal3s,
712      &glNormal3sv,
713      &glRasterPos2d,
714      &glRasterPos2dv,
715      &glRasterPos2f,
716      &glRasterPos2fv,
717      &glRasterPos2i,
718      &glRasterPos2iv,
719      &glRasterPos2s,
720      &glRasterPos2sv,
721      &glRasterPos3d,
722      &glRasterPos3dv,
723      &glRasterPos3f,
724      &glRasterPos3fv,
725      &glRasterPos3i,
726      &glRasterPos3iv,
727      &glRasterPos3s,
728      &glRasterPos3sv,
729      &glRasterPos4d,
730      &glRasterPos4dv,
731      &glRasterPos4f,
732      &glRasterPos4fv,
733      &glRasterPos4i,
734      &glRasterPos4iv,
735      &glRasterPos4s,
736      &glRasterPos4sv,
737      &glRectd,
738      &glRectdv,
739      &glRectf,
740      &glRectfv,
741      &glRecti,
742      &glRectiv,
743      &glRects,
744      &glRectsv,
745      &glTexCoord1d,
746      &glTexCoord1dv,
747      &glTexCoord1f,
748      &glTexCoord1fv,
749      &glTexCoord1i,
750      &glTexCoord1iv,
751      &glTexCoord1s,
752      &glTexCoord1sv,
753      &glTexCoord2d,
754      &glTexCoord2dv,
755      &glTexCoord2f,
756      &glTexCoord2fv,
757      &glTexCoord2i,
758      &glTexCoord2iv,
759      &glTexCoord2s,
760      &glTexCoord2sv,
761      &glTexCoord3d,
762      &glTexCoord3dv,
763      &glTexCoord3f,
764      &glTexCoord3fv,
765      &glTexCoord3i,
766      &glTexCoord3iv,
767      &glTexCoord3s,
768      &glTexCoord3sv,
769      &glTexCoord4d,
770      &glTexCoord4dv,
771      &glTexCoord4f,
772      &glTexCoord4fv,
773      &glTexCoord4i,
774      &glTexCoord4iv,
775      &glTexCoord4s,
776      &glTexCoord4sv,
777      &glVertex2d,
778      &glVertex2dv,
779      &glVertex2f,
780      &glVertex2fv,
781      &glVertex2i,
782      &glVertex2iv,
783      &glVertex2s,
784      &glVertex2sv,
785      &glVertex3d,
786      &glVertex3dv,
787      &glVertex3f,
788      &glVertex3fv,
789      &glVertex3i,
790      &glVertex3iv,
791      &glVertex3s,
792      &glVertex3sv,
793      &glVertex4d,
794      &glVertex4dv,
795      &glVertex4f,
796      &glVertex4fv,
797      &glVertex4i,
798      &glVertex4iv,
799      &glVertex4s,
800      &glVertex4sv,
801      &glClipPlane,
802      &glColorMaterial,
803      &glCullFace,
804      &glFogf,
805      &glFogfv,
806      &glFogi,
807      &glFogiv,
808      &glFrontFace,
809      &glHint,
810      &glLightf,
811      &glLightfv,
812      &glLighti,
813      &glLightiv,
814      &glLightModelf,
815      &glLightModelfv,
816      &glLightModeli,
817      &glLightModeliv,
818      &glLineStipple,
819      &glLineWidth,
820      &glMaterialf,
821      &glMaterialfv,
822      &glMateriali,
823      &glMaterialiv,
824      &glPointSize,
825      &glPolygonMode,
826      &glPolygonStipple,
827      &glScissor,
828      &glShadeModel,
829      &glTexParameterf,
830      &glTexParameterfv,
831      &glTexParameteri,
832      &glTexParameteriv,
833      &glTexImage1D,
834      &glTexImage2D,
835      &glTexEnvf,
836      &glTexEnvfv,
837      &glTexEnvi,
838      &glTexEnviv,
839      &glTexGend,
840      &glTexGendv,
841      &glTexGenf,
842      &glTexGenfv,
843      &glTexGeni,
844      &glTexGeniv,
845      &glFeedbackBuffer,
846      &glSelectBuffer,
847      &glRenderMode,
848      &glInitNames,
849      &glLoadName,
850      &glPassThrough,
851      &glPopName,
852      &glPushName,
853      &glDrawBuffer,
854      &glClear,
855      &glClearAccum,
856      &glClearIndex,
857      &glClearColor,
858      &glClearStencil,
859      &glClearDepth,
860      &glStencilMask,
861      &glColorMask,
862      &glDepthMask,
863      &glIndexMask,
864      &glAccum,
865      &glDisable,
866      &glEnable,
867      &glFinish,
868      &glFlush,
869      &glPopAttrib,
870      &glPushAttrib,
871      &glMap1d,
872      &glMap1f,
873      &glMap2d,
874      &glMap2f,
875      &glMapGrid1d,
876      &glMapGrid1f,
877      &glMapGrid2d,
878      &glMapGrid2f,
879      &glEvalCoord1d,
880      &glEvalCoord1dv,
881      &glEvalCoord1f,
882      &glEvalCoord1fv,
883      &glEvalCoord2d,
884      &glEvalCoord2dv,
885      &glEvalCoord2f,
886      &glEvalCoord2fv,
887      &glEvalMesh1,
888      &glEvalPoint1,
889      &glEvalMesh2,
890      &glEvalPoint2,
891      &glAlphaFunc,
892      &glBlendFunc,
893      &glLogicOp,
894      &glStencilFunc,
895      &glStencilOp,
896      &glDepthFunc,
897      &glPixelZoom,
898      &glPixelTransferf,
899      &glPixelTransferi,
900      &glPixelStoref,
901      &glPixelStorei,
902      &glPixelMapfv,
903      &glPixelMapuiv,
904      &glPixelMapusv,
905      &glReadBuffer,
906      &glCopyPixels,
907      &glReadPixels,
908      &glDrawPixels,
909      &glGetBooleanv,
910      &glGetClipPlane,
911      &glGetDoublev,
912      &glGetError,
913      &glGetFloatv,
914      &glGetIntegerv,
915      &glGetLightfv,
916      &glGetLightiv,
917      &glGetMapdv,
918      &glGetMapfv,
919      &glGetMapiv,
920      &glGetMaterialfv,
921      &glGetMaterialiv,
922      &glGetPixelMapfv,
923      &glGetPixelMapuiv,
924      &glGetPixelMapusv,
925      &glGetPolygonStipple,
926      &glGetString,
927      &glGetTexEnvfv,
928      &glGetTexEnviv,
929      &glGetTexGendv,
930      &glGetTexGenfv,
931      &glGetTexGeniv,
932      &glGetTexImage,
933      &glGetTexParameterfv,
934      &glGetTexParameteriv,
935      &glGetTexLevelParameterfv,
936      &glGetTexLevelParameteriv,
937      &glIsEnabled,
938      &glIsList,
939      &glDepthRange,
940      &glFrustum,
941      &glLoadIdentity,
942      &glLoadMatrixf,
943      &glLoadMatrixd,
944      &glMatrixMode,
945      &glMultMatrixf,
946      &glMultMatrixd,
947      &glOrtho,
948      &glPopMatrix,
949      &glPushMatrix,
950      &glRotated,
951      &glRotatef,
952      &glScaled,
953      &glScalef,
954      &glTranslated,
955      &glTranslatef,
956      &glViewport,
957      &glArrayElement,
958      &glBindTexture,
959      &glColorPointer,
960      &glDisableClientState,
961      &glDrawArrays,
962      &glDrawElements,
963      &glEdgeFlagPointer,
964      &glEnableClientState,
965      &glIndexPointer,
966      &glIndexub,
967      &glIndexubv,
968      &glInterleavedArrays,
969      &glNormalPointer,
970      &glPolygonOffset,
971      &glTexCoordPointer,
972      &glVertexPointer,
973      &glAreTexturesResident,
974      &glCopyTexImage1D,
975      &glCopyTexImage2D,
976      &glCopyTexSubImage1D,
977      &glCopyTexSubImage2D,
978      &glDeleteTextures,
979      &glGenTextures,
980      &glGetPointerv,
981      &glIsTexture,
982      &glPrioritizeTextures,
983      &glTexSubImage1D,
984      &glTexSubImage2D,
985      &glPopClientAttrib,
986      &glPushClientAttrib
987   }
988};
989
990
991PGLCLTPROCTABLE APIENTRY
992DrvSetContext(HDC hdc, DHGLRC dhglrc, PFN_SETPROCTABLE pfnSetProcTable)
993{
994   PGLCLTPROCTABLE r = (PGLCLTPROCTABLE)&cpt;
995
996   if (!stw_make_current_by_handles(hdc, hdc, dhglrc))
997      r = NULL;
998
999   return r;
1000}
1001