dlls/x11drv/opengl.c

   1 /*
   2  * X11DRV OpenGL functions
   3  *
   4  * Copyright 2000 Lionel Ulmer
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "x11drv.h"
  28 #include "wine/library.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(opengl);
  32
  33 #if defined(HAVE_GL_GL_H) && defined(HAVE_GL_GLX_H)
  34
  35 #undef APIENTRY
  36 #undef CALLBACK
  37 #undef WINAPI
  38
  39 #ifdef HAVE_GL_GL_H
  40 # include <GL/gl.h>
  41 #endif
  42 #ifdef HAVE_GL_GLX_H
  43 # include <GL/glx.h>
  44 #endif
  45 #ifdef HAVE_GL_GLEXT_H
  46 # include <GL/glext.h>
  47 #endif
  48
  49 #undef APIENTRY
  50 #undef CALLBACK
  51 #undef WINAPI
  52
  53 /* Redefines the constants */
  54 #define CALLBACK    __stdcall
  55 #define WINAPI      __stdcall
  56 #define APIENTRY    WINAPI
  57
  58
  59 static void dump_PIXELFORMATDESCRIPTOR(const PIXELFORMATDESCRIPTOR *ppfd) {
  60   TRACE("  - size / version : %d / %d\n", ppfd->nSize, ppfd->nVersion);
  61   TRACE("  - dwFlags : ");
  62 #define TEST_AND_DUMP(t,tv) if ((t) & (tv)) TRACE(#tv " ")
  63   TEST_AND_DUMP(ppfd->dwFlags, PFD_DEPTH_DONTCARE);
  64   TEST_AND_DUMP(ppfd->dwFlags, PFD_DOUBLEBUFFER);
  65   TEST_AND_DUMP(ppfd->dwFlags, PFD_DOUBLEBUFFER_DONTCARE);
  66   TEST_AND_DUMP(ppfd->dwFlags, PFD_DRAW_TO_WINDOW);
  67   TEST_AND_DUMP(ppfd->dwFlags, PFD_DRAW_TO_BITMAP);
  68   TEST_AND_DUMP(ppfd->dwFlags, PFD_GENERIC_ACCELERATED);
  69   TEST_AND_DUMP(ppfd->dwFlags, PFD_GENERIC_FORMAT);
  70   TEST_AND_DUMP(ppfd->dwFlags, PFD_NEED_PALETTE);
  71   TEST_AND_DUMP(ppfd->dwFlags, PFD_NEED_SYSTEM_PALETTE);
  72   TEST_AND_DUMP(ppfd->dwFlags, PFD_STEREO);
  73   TEST_AND_DUMP(ppfd->dwFlags, PFD_STEREO_DONTCARE);
  74   TEST_AND_DUMP(ppfd->dwFlags, PFD_SUPPORT_GDI);
  75   TEST_AND_DUMP(ppfd->dwFlags, PFD_SUPPORT_OPENGL);
  76   TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_COPY);
  77   TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_EXCHANGE);
  78   TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_LAYER_BUFFERS);
  79 #undef TEST_AND_DUMP
  80   TRACE("\n");
  81
  82   TRACE("  - iPixelType : ");
  83   switch (ppfd->iPixelType) {
  84   case PFD_TYPE_RGBA: TRACE("PFD_TYPE_RGBA"); break;
  85   case PFD_TYPE_COLORINDEX: TRACE("PFD_TYPE_COLORINDEX"); break;
  86   }
  87   TRACE("\n");
  88
  89   TRACE("  - Color   : %d\n", ppfd->cColorBits);
  90   TRACE("  - Red     : %d\n", ppfd->cRedBits);
  91   TRACE("  - Green   : %d\n", ppfd->cGreenBits);
  92   TRACE("  - Blue    : %d\n", ppfd->cBlueBits);
  93   TRACE("  - Alpha   : %d\n", ppfd->cAlphaBits);
  94   TRACE("  - Accum   : %d\n", ppfd->cAccumBits);
  95   TRACE("  - Depth   : %d\n", ppfd->cDepthBits);
  96   TRACE("  - Stencil : %d\n", ppfd->cStencilBits);
  97   TRACE("  - Aux     : %d\n", ppfd->cAuxBuffers);
  98
  99   TRACE("  - iLayerType : ");
 100   switch (ppfd->iLayerType) {
 101   case PFD_MAIN_PLANE: TRACE("PFD_MAIN_PLANE"); break;
 102   case PFD_OVERLAY_PLANE: TRACE("PFD_OVERLAY_PLANE"); break;
 103   case (BYTE)PFD_UNDERLAY_PLANE: TRACE("PFD_UNDERLAY_PLANE"); break;
 104   }
 105   TRACE("\n");
 106 }
 107
 108 /* No need to load any other libraries as according to the ABI, libGL should be self-sufficient and
 109    include all dependencies
 110 */
 111 #ifndef SONAME_LIBGL
 112 #define SONAME_LIBGL "libGL.so"
 113 #endif
 114
 115 #define MAKE_FUNCPTR(f) static typeof(f) * p##f;
 116 MAKE_FUNCPTR(glGetError)
 117 MAKE_FUNCPTR(glXChooseVisual)
 118 MAKE_FUNCPTR(glXGetConfig)
 119 MAKE_FUNCPTR(glXSwapBuffers)
 120 MAKE_FUNCPTR(glXQueryExtension)
 121
 122 MAKE_FUNCPTR(glXGetFBConfigs)
 123 MAKE_FUNCPTR(glXChooseFBConfig)
 124 MAKE_FUNCPTR(glXGetFBConfigAttrib)
 125 MAKE_FUNCPTR(glXCreateGLXPixmap)
 126 MAKE_FUNCPTR(glXDestroyGLXPixmap)
 127 #undef MAKE_FUNCPTR
 128
 129 static BOOL has_opengl(void)
 130 {
 131     static int init_done;
 132     static void *opengl_handle;
 133
 134     int error_base, event_base;
 135
 136     if (init_done) return (opengl_handle != NULL);
 137     init_done = 1;
 138
 139     opengl_handle = wine_dlopen(SONAME_LIBGL, RTLD_NOW|RTLD_GLOBAL, NULL, 0);
 140     if (opengl_handle == NULL) return FALSE;
 141
 142 #define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(opengl_handle, #f, NULL, 0)) == NULL) goto sym_not_found;
 143 LOAD_FUNCPTR(glGetError)
 144 LOAD_FUNCPTR(glXChooseVisual)
 145 LOAD_FUNCPTR(glXGetConfig)
 146 LOAD_FUNCPTR(glXSwapBuffers)
 147 LOAD_FUNCPTR(glXQueryExtension)
 148
 149 LOAD_FUNCPTR(glXGetFBConfigs)
 150 LOAD_FUNCPTR(glXChooseFBConfig)
 151 LOAD_FUNCPTR(glXGetFBConfigAttrib)
 152 LOAD_FUNCPTR(glXCreateGLXPixmap)
 153 LOAD_FUNCPTR(glXDestroyGLXPixmap)
 154 #undef LOAD_FUNCPTR
 155
 156     wine_tsx11_lock();
 157     if (pglXQueryExtension(gdi_display, &event_base, &error_base) == True) {
 158         TRACE("GLX is up and running error_base = %d\n", error_base);
 159     } else {
 160         wine_dlclose(opengl_handle, NULL, 0);
 161         opengl_handle = NULL;
 162     }
 163     wine_tsx11_unlock();
 164     return (opengl_handle != NULL);
 165
 166 sym_not_found:
 167     wine_dlclose(opengl_handle, NULL, 0);
 168     opengl_handle = NULL;
 169     return FALSE;
 170 }
 171
 172 #define TEST_AND_ADD1(t,a) if (t) att_list[att_pos++] = (a)
 173 #define TEST_AND_ADD2(t,a,b) if (t) { att_list[att_pos++] = (a); att_list[att_pos++] = (b); }
 174 #define NULL_TEST_AND_ADD2(tv,a,b) att_list[att_pos++] = (a); att_list[att_pos++] = ((tv) == 0 ? 0 : (b))
 175 #define ADD2(a,b) att_list[att_pos++] = (a); att_list[att_pos++] = (b)
 176
 177 /**
 178  * X11DRV_ChoosePixelFormat
 179  *
 180  * Equivalent of glXChooseVisual
 181  */
 182 int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
 183                              const PIXELFORMATDESCRIPTOR *ppfd) {
 184   int att_list[64];
 185   int att_pos = 0;
 186   GLXFBConfig* cfgs = NULL;
 187   int ret = 0;
 188
 189   if (!has_opengl()) {
 190     ERR("No libGL on this box - disabling OpenGL support !\n");
 191     return 0;
 192   }
 193
 194   if (TRACE_ON(opengl)) {
 195     TRACE("(%p,%p)\n", physDev, ppfd);
 196
 197     dump_PIXELFORMATDESCRIPTOR((const PIXELFORMATDESCRIPTOR *) ppfd);
 198   }
 199
 200   if (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) {
 201     ERR("Flag not supported !\n");
 202     /* Should SetError here... */
 203     return 0;
 204   }
 205
 206   /* Now, build the request to GLX */
 207   TEST_AND_ADD2(ppfd->dwFlags & PFD_DOUBLEBUFFER, GLX_DOUBLEBUFFER, TRUE);
 208   TEST_AND_ADD1(ppfd->dwFlags & PFD_STEREO, GLX_STEREO);
 209
 210   if (ppfd->iPixelType == PFD_TYPE_COLORINDEX) {
 211     ADD2(GLX_BUFFER_SIZE, ppfd->cColorBits);
 212   }
 213   if (ppfd->iPixelType == PFD_TYPE_RGBA) {
 214     ADD2(GLX_RENDER_TYPE, GLX_RGBA_BIT);
 215     ADD2(GLX_BUFFER_SIZE, ppfd->cColorBits);
 216     if (32 == ppfd->cDepthBits) {
 217       /**
 218        * for 32 bpp depth buffers force to use 24.
 219        * needed as some drivers don't support 32bpp
 220        */
 221       TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, 24);
 222     } else {
 223       TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, ppfd->cDepthBits);
 224     }
 225     TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, ppfd->cAlphaBits);
 226   }
 227   TEST_AND_ADD2(ppfd->cStencilBits, GLX_STENCIL_SIZE, ppfd->cStencilBits);
 228   TEST_AND_ADD2(ppfd->cAuxBuffers,  GLX_AUX_BUFFERS,  ppfd->cAuxBuffers);
 229
 230   /* These flags are not supported yet...
 231   ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits);
 232   */
 233   att_list[att_pos] = None;
 234
 235   wine_tsx11_lock();
 236   {
 237     int nCfgs = 0;
 238     int gl_test = 0;
 239     int fmt_id;
 240
 241     GLXFBConfig* cfgs_fmt = NULL;
 242     int nCfgs_fmt = 0;
 243     int tmp_fmt_id;
 244     UINT it_fmt;
 245
 246     cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), att_list, &nCfgs);
 247     if (NULL == cfgs || 0 == nCfgs) {
 248       ERR("glXChooseFBConfig returns NULL (glError: %d)\n", pglGetError());
 249       ret = 0;
 250       goto choose_exit;
 251     }
 252
 253     gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs[0], GLX_FBCONFIG_ID, &fmt_id);
 254     if (gl_test) {
 255       ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
 256       ret = 0;
 257       goto choose_exit;
 258     }
 259
 260     cfgs_fmt = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs_fmt);
 261     if (NULL == cfgs_fmt) {
 262       ERR("Failed to get All FB Configs\n");
 263       ret = 0;
 264       goto choose_exit;
 265     }
 266
 267     for (it_fmt = 0; it_fmt < nCfgs_fmt; ++it_fmt) {
 268       gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs_fmt[it_fmt], GLX_FBCONFIG_ID, &tmp_fmt_id);
 269       if (gl_test) {
 270         ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
 271         XFree(cfgs_fmt);
 272         ret = 0;
 273         goto choose_exit;
 274       }
 275       if (fmt_id == tmp_fmt_id) {
 276         ret = it_fmt + 1;
 277         break ;
 278       }
 279     }
 280     if (it_fmt == nCfgs_fmt) {
 281       ERR("Failed to get valid fmt for FBCONFIG_ID(%d)\n", fmt_id);
 282       ret = 0;
 283     }
 284     XFree(cfgs_fmt);
 285   }
 286
 287 choose_exit:
 288   if (NULL != cfgs) XFree(cfgs);
 289   wine_tsx11_unlock();
 290   return ret;
 291 }
 292
 293 /**
 294  * X11DRV_DescribePixelFormat
 295  *
 296  * Get the pixel-format descriptor associated to the given id
 297  */
 298 int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
 299                                int iPixelFormat,
 300                                UINT nBytes,
 301                                PIXELFORMATDESCRIPTOR *ppfd) {
 302   /*XVisualInfo *vis;*/
 303   int value;
 304   int rb,gb,bb,ab;
 305
 306   GLXFBConfig* cfgs = NULL;
 307   GLXFBConfig cur;
 308   int nCfgs = 0;
 309   int ret = 0;
 310
 311   if (!has_opengl()) {
 312     ERR("No libGL on this box - disabling OpenGL support !\n");
 313     return 0;
 314   }
 315
 316   TRACE("(%p,%d,%d,%p)\n", physDev, iPixelFormat, nBytes, ppfd);
 317
 318   wine_tsx11_lock();
 319   cfgs = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs);
 320   wine_tsx11_unlock();
 321
 322   if (NULL == cfgs || 0 == nCfgs) {
 323     ERR("unexpected iPixelFormat(%d), returns NULL\n", iPixelFormat);
 324     return 0; /* unespected error */
 325   }
 326
 327   if (ppfd == NULL) {
 328     /* The application is only querying the number of visuals */
 329     wine_tsx11_lock();
 330     if (NULL != cfgs) XFree(cfgs);
 331     wine_tsx11_unlock();
 332     return nCfgs;
 333   }
 334
 335   if (nBytes < sizeof(PIXELFORMATDESCRIPTOR)) {
 336     ERR("Wrong structure size !\n");
 337     /* Should set error */
 338     return 0;
 339   }
 340
 341   if (nCfgs < iPixelFormat) {
 342     ERR("unexpected iPixelFormat(%d) > nFormats(%d), returns NULL\n", iPixelFormat, nCfgs);
 343     return 0; /* unespected error */
 344   }
 345
 346   ret = nCfgs;
 347   cur = cfgs[iPixelFormat - 1];
 348
 349   memset(ppfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
 350   ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR);
 351   ppfd->nVersion = 1;
 352
 353   /* These flags are always the same... */
 354   ppfd->dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_GENERIC_ACCELERATED;
 355   /* Now the flags extraced from the Visual */
 356
 357   wine_tsx11_lock();
 358
 359   pglXGetFBConfigAttrib(gdi_display, cur, GLX_DOUBLEBUFFER, &value); if (value) ppfd->dwFlags |= PFD_DOUBLEBUFFER;
 360   pglXGetFBConfigAttrib(gdi_display, cur, GLX_STEREO, &value); if (value) ppfd->dwFlags |= PFD_STEREO;
 361
 362   /* Pixel type */
 363   pglXGetFBConfigAttrib(gdi_display, cur, GLX_RENDER_TYPE, &value);
 364   if (value & GLX_RGBA_BIT)
 365     ppfd->iPixelType = PFD_TYPE_RGBA;
 366   else
 367     ppfd->iPixelType = PFD_TYPE_COLORINDEX;
 368
 369   /* Color bits */
 370   pglXGetFBConfigAttrib(gdi_display, cur, GLX_BUFFER_SIZE, &value);
 371   ppfd->cColorBits = value;
 372
 373   /* Red, green, blue and alpha bits / shifts */
 374   if (ppfd->iPixelType == PFD_TYPE_RGBA) {
 375     pglXGetFBConfigAttrib(gdi_display, cur, GLX_RED_SIZE, &rb);
 376     pglXGetFBConfigAttrib(gdi_display, cur, GLX_GREEN_SIZE, &gb);
 377     pglXGetFBConfigAttrib(gdi_display, cur, GLX_BLUE_SIZE, &bb);
 378     pglXGetFBConfigAttrib(gdi_display, cur, GLX_ALPHA_SIZE, &ab);
 379
 380     ppfd->cRedBits = rb;
 381     ppfd->cRedShift = gb + bb + ab;
 382     ppfd->cBlueBits = bb;
 383     ppfd->cBlueShift = ab;
 384     ppfd->cGreenBits = gb;
 385     ppfd->cGreenShift = bb + ab;
 386     ppfd->cAlphaBits = ab;
 387     ppfd->cAlphaShift = 0;
 388   } else {
 389     ppfd->cRedBits = 0;
 390     ppfd->cRedShift = 0;
 391     ppfd->cBlueBits = 0;
 392     ppfd->cBlueShift = 0;
 393     ppfd->cGreenBits = 0;
 394     ppfd->cGreenShift = 0;
 395     ppfd->cAlphaBits = 0;
 396     ppfd->cAlphaShift = 0;
 397   }
 398   /* Accums : to do ... */
 399
 400   /* Depth bits */
 401   pglXGetFBConfigAttrib(gdi_display, cur, GLX_DEPTH_SIZE, &value);
 402   ppfd->cDepthBits = value;
 403
 404   /* stencil bits */
 405   pglXGetFBConfigAttrib(gdi_display, cur, GLX_STENCIL_SIZE, &value);
 406   ppfd->cStencilBits = value;
 407
 408   wine_tsx11_unlock();
 409
 410   /* Aux : to do ... */
 411
 412   ppfd->iLayerType = PFD_MAIN_PLANE;
 413
 414   if (TRACE_ON(opengl)) {
 415     dump_PIXELFORMATDESCRIPTOR(ppfd);
 416   }
 417
 418   wine_tsx11_lock();
 419   if (NULL != cfgs) XFree(cfgs);
 420   wine_tsx11_unlock();
 421
 422   return ret;
 423 }
 424
 425 /**
 426  * X11DRV_GetPixelFormat
 427  *
 428  * Get the pixel-format id used by this DC
 429  */
 430 int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
 431   TRACE("(%p): returns %d\n", physDev, physDev->current_pf);
 432
 433   return physDev->current_pf;
 434 }
 435
 436 /**
 437  * X11DRV_SetPixelFormat
 438  *
 439  * Set the pixel-format id used by this DC
 440  */
 441 BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
 442                            int iPixelFormat,
 443                            const PIXELFORMATDESCRIPTOR *ppfd) {
 444   TRACE("(%p,%d,%p)\n", physDev, iPixelFormat, ppfd);
 445
 446   physDev->current_pf = iPixelFormat;
 447
 448   return TRUE;
 449 }
 450
 451 /**
 452  * X11DRV_SwapBuffers
 453  *
 454  * Swap the buffers of this DC
 455  */
 456 BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
 457   if (!has_opengl()) {
 458     ERR("No libGL on this box - disabling OpenGL support !\n");
 459     return 0;
 460   }
 461
 462   TRACE("(%p)\n", physDev);
 463
 464   wine_tsx11_lock();
 465   pglXSwapBuffers(gdi_display, physDev->drawable);
 466   wine_tsx11_unlock();
 467
 468   return TRUE;
 469 }
 470
 471 /***********************************************************************
 472  *              X11DRV_setup_opengl_visual
 473  *
 474  * Setup the default visual used for OpenGL and Direct3D, and the desktop
 475  * window (if it exists).  If OpenGL isn't available, the visual is simply
 476  * set to the default visual for the display
 477  */
 478 XVisualInfo *X11DRV_setup_opengl_visual( Display *display )
 479 {
 480     XVisualInfo *visual = NULL;
 481     /* In order to support OpenGL or D3D, we require a double-buffered visual and stencil buffer support, */
 482     int dblBuf[] = {GLX_RGBA,GLX_DEPTH_SIZE, 16, GLX_STENCIL_SIZE, 8, GLX_DOUBLEBUFFER, None};
 483     if (!has_opengl()) return NULL;
 484
 485     wine_tsx11_lock();
 486     visual = pglXChooseVisual(display, DefaultScreen(display), dblBuf);
 487     wine_tsx11_unlock();
 488     if (visual == NULL) {
 489         /* fallback to no stencil */
 490         int dblBuf2[] = {GLX_RGBA,GLX_DEPTH_SIZE, 16, GLX_DOUBLEBUFFER, None};
 491         WARN("Failed to get a visual with at least 8 bits of stencil\n");
 492
 493         wine_tsx11_lock();
 494         visual = pglXChooseVisual(display, DefaultScreen(display), dblBuf2);
 495         wine_tsx11_unlock();
 496         if (visual == NULL) {
 497             /* This should only happen if we cannot find a match with a depth size 16 */
 498             FIXME("Failed to find a suitable visual\n");
 499             return visual;
 500         }
 501     }
 502     TRACE("Visual ID %lx Chosen\n",visual->visualid);
 503     return visual;
 504 }
 505
 506 XID create_glxpixmap(X11DRV_PDEVICE *physDev)
 507 {
 508     GLXPixmap ret;
 509     XVisualInfo *vis;
 510     XVisualInfo template;
 511     int num;
 512
 513     wine_tsx11_lock();
 514     template.visualid = XVisualIDFromVisual(visual);
 515     vis = XGetVisualInfo(gdi_display, VisualIDMask, &template, &num);
 516
 517     ret = pglXCreateGLXPixmap(gdi_display, vis, physDev->bitmap->pixmap);
 518     XFree(vis);
 519     wine_tsx11_unlock();
 520     TRACE("return %lx\n", ret);
 521     return ret;
 522 }
 523
 524 BOOL destroy_glxpixmap(XID glxpixmap)
 525 {
 526     wine_tsx11_lock();
 527     pglXDestroyGLXPixmap(gdi_display, glxpixmap);
 528     wine_tsx11_unlock();
 529     return TRUE;
 530 }
 531
 532 #else  /* no OpenGL includes */
 533
 534 void X11DRV_OpenGL_Init(Display *display)
 535 {
 536 }
 537
 538 /***********************************************************************
 539  *              ChoosePixelFormat (X11DRV.@)
 540  */
 541 int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
 542                              const PIXELFORMATDESCRIPTOR *ppfd) {
 543   ERR("No OpenGL support compiled in.\n");
 544
 545   return 0;
 546 }
 547
 548 /***********************************************************************
 549  *              DescribePixelFormat (X11DRV.@)
 550  */
 551 int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
 552                                int iPixelFormat,
 553                                UINT nBytes,
 554                                PIXELFORMATDESCRIPTOR *ppfd) {
 555   ERR("No OpenGL support compiled in.\n");
 556
 557   return 0;
 558 }
 559
 560 /***********************************************************************
 561  *              GetPixelFormat (X11DRV.@)
 562  */
 563 int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
 564   ERR("No OpenGL support compiled in.\n");
 565
 566   return 0;
 567 }
 568
 569 /***********************************************************************
 570  *              SetPixelFormat (X11DRV.@)
 571  */
 572 BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
 573                            int iPixelFormat,
 574                            const PIXELFORMATDESCRIPTOR *ppfd) {
 575   ERR("No OpenGL support compiled in.\n");
 576
 577   return FALSE;
 578 }
 579
 580 /***********************************************************************
 581  *              SwapBuffers (X11DRV.@)
 582  */
 583 BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
 584   ERR("No OpenGL support compiled in.\n");
 585
 586   return FALSE;
 587 }
 588
 589 XVisualInfo *X11DRV_setup_opengl_visual( Display *display )
 590 {
 591   return NULL;
 592 }
 593
 594 XID create_glxpixmap(X11DRV_PDEVICE *physDev)
 595 {
 596     return NULL;
 597 }
 598
 599 BOOL destroy_glxpixmap(XID glxpixmap)
 600 {
 601     return FALSE;
 602 }
 603
 604 #endif /* defined(HAVE_OPENGL) */