src/gallium/state_trackers/wgl/stw_context.c

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