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 /* MAKE_FUNCPTR(glXQueryDrawable) */
 128 #undef MAKE_FUNCPTR
 129
 130 static BOOL has_opengl(void)
 131 {
 132     static int init_done;
 133     static void *opengl_handle;
 134
 135     int error_base, event_base;
 136
 137     if (init_done) return (opengl_handle != NULL);
 138     init_done = 1;
 139
 140     opengl_handle = wine_dlopen(SONAME_LIBGL, RTLD_NOW|RTLD_GLOBAL, NULL, 0);
 141     if (opengl_handle == NULL) return FALSE;
 142
 143 #define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(RTLD_DEFAULT, #f, NULL, 0)) == NULL) goto sym_not_found;
 144 LOAD_FUNCPTR(glGetError)
 145 LOAD_FUNCPTR(glXChooseVisual)
 146 LOAD_FUNCPTR(glXGetConfig)
 147 LOAD_FUNCPTR(glXSwapBuffers)
 148 LOAD_FUNCPTR(glXQueryExtension)
 149
 150 LOAD_FUNCPTR(glXGetFBConfigs)
 151 LOAD_FUNCPTR(glXChooseFBConfig)
 152 LOAD_FUNCPTR(glXGetFBConfigAttrib)
 153 LOAD_FUNCPTR(glXCreateGLXPixmap)
 154 LOAD_FUNCPTR(glXDestroyGLXPixmap)
 155 #undef LOAD_FUNCPTR
 156
 157     wine_tsx11_lock();
 158     if (pglXQueryExtension(gdi_display, &event_base, &error_base) == True) {
 159         TRACE("GLX is up and running error_base = %d\n", error_base);
 160     } else {
 161         wine_dlclose(opengl_handle, NULL, 0);
 162         opengl_handle = NULL;
 163     }
 164     wine_tsx11_unlock();
 165     return (opengl_handle != NULL);
 166
 167 sym_not_found:
 168     wine_dlclose(opengl_handle, NULL, 0);
 169     opengl_handle = NULL;
 170     return FALSE;
 171 }
 172
 173 #define TEST_AND_ADD1(t,a) if (t) att_list[att_pos++] = (a)
 174 #define TEST_AND_ADD2(t,a,b) if (t) { att_list[att_pos++] = (a); att_list[att_pos++] = (b); }
 175 #define NULL_TEST_AND_ADD2(tv,a,b) att_list[att_pos++] = (a); att_list[att_pos++] = ((tv) == 0 ? 0 : (b))
 176 #define ADD2(a,b) att_list[att_pos++] = (a); att_list[att_pos++] = (b)
 177
 178 /**
 179  * X11DRV_ChoosePixelFormat
 180  *
 181  * Equivalent of glXChooseVisual
 182  */
 183 int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
 184                              const PIXELFORMATDESCRIPTOR *ppfd) {
 185   int att_list[64];
 186   int att_pos = 0;
 187   int att_pos_fac = 0;
 188   GLXFBConfig* cfgs = NULL;
 189   int ret = 0;
 190
 191   if (!has_opengl()) {
 192     ERR("No libGL on this box - disabling OpenGL support !\n");
 193     return 0;
 194   }
 195
 196   if (TRACE_ON(opengl)) {
 197     TRACE("(%p,%p)\n", physDev, ppfd);
 198
 199     dump_PIXELFORMATDESCRIPTOR((const PIXELFORMATDESCRIPTOR *) ppfd);
 200   }
 201
 202   /* Now, build the request to GLX */
 203
 204   if (ppfd->iPixelType == PFD_TYPE_COLORINDEX) {
 205     ADD2(GLX_BUFFER_SIZE, ppfd->cColorBits);
 206   }
 207   if (ppfd->iPixelType == PFD_TYPE_RGBA) {
 208     ADD2(GLX_RENDER_TYPE, GLX_RGBA_BIT);
 209     if (ppfd->dwFlags & PFD_DEPTH_DONTCARE) {
 210       ADD2(GLX_DEPTH_SIZE, GLX_DONT_CARE);
 211     } else {
 212       if (32 == ppfd->cDepthBits) {
 213         /**
 214          * for 32 bpp depth buffers force to use 24.
 215          * needed as some drivers don't support 32bpp
 216          */
 217         TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, 24);
 218       } else {
 219         TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, ppfd->cDepthBits);
 220       }
 221     }
 222     if (32 == ppfd->cColorBits) {
 223       ADD2(GLX_RED_SIZE,   8);
 224       ADD2(GLX_GREEN_SIZE, 8);
 225       ADD2(GLX_BLUE_SIZE,  8);
 226       ADD2(GLX_ALPHA_SIZE, 8);
 227     } else {
 228       ADD2(GLX_BUFFER_SIZE, ppfd->cColorBits);
 229       TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, ppfd->cAlphaBits);
 230     }
 231   }
 232   TEST_AND_ADD2(ppfd->cStencilBits, GLX_STENCIL_SIZE, ppfd->cStencilBits);
 233   TEST_AND_ADD2(ppfd->cAuxBuffers,  GLX_AUX_BUFFERS,  ppfd->cAuxBuffers);
 234
 235   /* These flags are not supported yet...
 236   ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits);
 237   */
 238
 239   /** facultative flags now */
 240   att_pos_fac = att_pos;
 241   if (ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) {
 242     ADD2(GLX_DOUBLEBUFFER, GLX_DONT_CARE);
 243   } else {
 244     ADD2(GLX_DOUBLEBUFFER, (ppfd->dwFlags & PFD_DOUBLEBUFFER) ? TRUE : FALSE);
 245   }
 246   if (ppfd->dwFlags & PFD_STEREO_DONTCARE) {
 247     ADD2(GLX_STEREO, GLX_DONT_CARE);
 248   } else {
 249     ADD2(GLX_STEREO, (ppfd->dwFlags & PFD_STEREO) ? TRUE : FALSE);
 250   }
 251
 252   /** Attributes List End */
 253   att_list[att_pos] = None;
 254
 255   wine_tsx11_lock();
 256   {
 257     int nCfgs = 0;
 258     int gl_test = 0;
 259     int fmt_id;
 260
 261     GLXFBConfig* cfgs_fmt = NULL;
 262     int nCfgs_fmt = 0;
 263     int tmp_fmt_id;
 264     UINT it_fmt;
 265
 266     cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), att_list, &nCfgs);
 267     /**
 268      * if we have facultative flags and we failed, try without
 269      *  as MSDN said
 270      *
 271      * see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/opengl/ntopnglr_2qb8.asp
 272      */
 273     if ((NULL == cfgs || 0 == nCfgs) && att_pos > att_pos_fac) {
 274       att_list[att_pos_fac] = None;
 275       cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), att_list, &nCfgs);
 276     }
 277
 278     if (NULL == cfgs || 0 == nCfgs) {
 279       ERR("glXChooseFBConfig returns NULL (glError: %d)\n", pglGetError());
 280       ret = 0;
 281       goto choose_exit;
 282     }
 283
 284     gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs[0], GLX_FBCONFIG_ID, &fmt_id);
 285     if (gl_test) {
 286       ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
 287       ret = 0;
 288       goto choose_exit;
 289     }
 290
 291     cfgs_fmt = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs_fmt);
 292     if (NULL == cfgs_fmt) {
 293       ERR("Failed to get All FB Configs\n");
 294       ret = 0;
 295       goto choose_exit;
 296     }
 297
 298     for (it_fmt = 0; it_fmt < nCfgs_fmt; ++it_fmt) {
 299       gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs_fmt[it_fmt], GLX_FBCONFIG_ID, &tmp_fmt_id);
 300       if (gl_test) {
 301         ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
 302         XFree(cfgs_fmt);
 303         ret = 0;
 304         goto choose_exit;
 305       }
 306       if (fmt_id == tmp_fmt_id) {
 307         ret = it_fmt + 1;
 308         break ;
 309       }
 310     }
 311     if (it_fmt == nCfgs_fmt) {
 312       ERR("Failed to get valid fmt for FBCONFIG_ID(%d)\n", fmt_id);
 313       ret = 0;
 314     }
 315     XFree(cfgs_fmt);
 316   }
 317
 318 choose_exit:
 319   if (NULL != cfgs) XFree(cfgs);
 320   wine_tsx11_unlock();
 321   return ret;
 322 }
 323
 324 /**
 325  * X11DRV_DescribePixelFormat
 326  *
 327  * Get the pixel-format descriptor associated to the given id
 328  */
 329 int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
 330                                int iPixelFormat,
 331                                UINT nBytes,
 332                                PIXELFORMATDESCRIPTOR *ppfd) {
 333   /*XVisualInfo *vis;*/
 334   int value;
 335   int rb,gb,bb,ab;
 336
 337   GLXFBConfig* cfgs = NULL;
 338   GLXFBConfig cur;
 339   int nCfgs = 0;
 340   int ret = 0;
 341
 342   if (!has_opengl()) {
 343     ERR("No libGL on this box - disabling OpenGL support !\n");
 344     return 0;
 345   }
 346
 347   TRACE("(%p,%d,%d,%p)\n", physDev, iPixelFormat, nBytes, ppfd);
 348
 349   wine_tsx11_lock();
 350   cfgs = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs);
 351   wine_tsx11_unlock();
 352
 353   if (NULL == cfgs || 0 == nCfgs) {
 354     ERR("unexpected iPixelFormat(%d), returns NULL\n", iPixelFormat);
 355     return 0; /* unespected error */
 356   }
 357
 358   if (ppfd == NULL) {
 359     /* The application is only querying the number of visuals */
 360     wine_tsx11_lock();
 361     if (NULL != cfgs) XFree(cfgs);
 362     wine_tsx11_unlock();
 363     return nCfgs;
 364   }
 365
 366   if (nBytes < sizeof(PIXELFORMATDESCRIPTOR)) {
 367     ERR("Wrong structure size !\n");
 368     /* Should set error */
 369     return 0;
 370   }
 371
 372   if (nCfgs < iPixelFormat) {
 373     ERR("unexpected iPixelFormat(%d) > nFormats(%d), returns NULL\n", iPixelFormat, nCfgs);
 374     return 0; /* unespected error */
 375   }
 376
 377   ret = nCfgs;
 378   cur = cfgs[iPixelFormat - 1];
 379
 380   memset(ppfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
 381   ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR);
 382   ppfd->nVersion = 1;
 383
 384   /* These flags are always the same... */
 385   ppfd->dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
 386   /* Now the flags extracted from the Visual */
 387
 388   wine_tsx11_lock();
 389
 390   pglXGetFBConfigAttrib(gdi_display, cur, GLX_CONFIG_CAVEAT, &value);
 391   if(value == GLX_SLOW_CONFIG)
 392       ppfd->dwFlags |= PFD_GENERIC_ACCELERATED;
 393
 394   pglXGetFBConfigAttrib(gdi_display, cur, GLX_DOUBLEBUFFER, &value); if (value) ppfd->dwFlags |= PFD_DOUBLEBUFFER;
 395   pglXGetFBConfigAttrib(gdi_display, cur, GLX_STEREO, &value); if (value) ppfd->dwFlags |= PFD_STEREO;
 396
 397   /* Pixel type */
 398   pglXGetFBConfigAttrib(gdi_display, cur, GLX_RENDER_TYPE, &value);
 399   if (value & GLX_RGBA_BIT)
 400     ppfd->iPixelType = PFD_TYPE_RGBA;
 401   else
 402     ppfd->iPixelType = PFD_TYPE_COLORINDEX;
 403
 404   /* Color bits */
 405   pglXGetFBConfigAttrib(gdi_display, cur, GLX_BUFFER_SIZE, &value);
 406   ppfd->cColorBits = value;
 407
 408   /* Red, green, blue and alpha bits / shifts */
 409   if (ppfd->iPixelType == PFD_TYPE_RGBA) {
 410     pglXGetFBConfigAttrib(gdi_display, cur, GLX_RED_SIZE, &rb);
 411     pglXGetFBConfigAttrib(gdi_display, cur, GLX_GREEN_SIZE, &gb);
 412     pglXGetFBConfigAttrib(gdi_display, cur, GLX_BLUE_SIZE, &bb);
 413     pglXGetFBConfigAttrib(gdi_display, cur, GLX_ALPHA_SIZE, &ab);
 414
 415     ppfd->cRedBits = rb;
 416     ppfd->cRedShift = gb + bb + ab;
 417     ppfd->cBlueBits = bb;
 418     ppfd->cBlueShift = ab;
 419     ppfd->cGreenBits = gb;
 420     ppfd->cGreenShift = bb + ab;
 421     ppfd->cAlphaBits = ab;
 422     ppfd->cAlphaShift = 0;
 423   } else {
 424     ppfd->cRedBits = 0;
 425     ppfd->cRedShift = 0;
 426     ppfd->cBlueBits = 0;
 427     ppfd->cBlueShift = 0;
 428     ppfd->cGreenBits = 0;
 429     ppfd->cGreenShift = 0;
 430     ppfd->cAlphaBits = 0;
 431     ppfd->cAlphaShift = 0;
 432   }
 433   /* Accums : to do ... */
 434
 435   /* Depth bits */
 436   pglXGetFBConfigAttrib(gdi_display, cur, GLX_DEPTH_SIZE, &value);
 437   ppfd->cDepthBits = value;
 438
 439   /* stencil bits */
 440   pglXGetFBConfigAttrib(gdi_display, cur, GLX_STENCIL_SIZE, &value);
 441   ppfd->cStencilBits = value;
 442
 443   wine_tsx11_unlock();
 444
 445   /* Aux : to do ... */
 446
 447   ppfd->iLayerType = PFD_MAIN_PLANE;
 448
 449   if (TRACE_ON(opengl)) {
 450     dump_PIXELFORMATDESCRIPTOR(ppfd);
 451   }
 452
 453   wine_tsx11_lock();
 454   if (NULL != cfgs) XFree(cfgs);
 455   wine_tsx11_unlock();
 456
 457   return ret;
 458 }
 459
 460 /**
 461  * X11DRV_GetPixelFormat
 462  *
 463  * Get the pixel-format id used by this DC
 464  */
 465 int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
 466   TRACE("(%p): returns %d\n", physDev, physDev->current_pf);
 467
 468   return physDev->current_pf;
 469 }
 470
 471 /**
 472  * X11DRV_SetPixelFormat
 473  *
 474  * Set the pixel-format id used by this DC
 475  */
 476 BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
 477                            int iPixelFormat,
 478                            const PIXELFORMATDESCRIPTOR *ppfd) {
 479   TRACE("(%p,%d,%p)\n", physDev, iPixelFormat, ppfd);
 480
 481   physDev->current_pf = iPixelFormat;
 482
 483   if (TRACE_ON(opengl)) {
 484     int nCfgs_fmt = 0;
 485     GLXFBConfig* cfgs_fmt = NULL;
 486     GLXFBConfig cur_cfg;
 487     int value;
 488     int gl_test = 0;
 489
 490     /*
 491      * How to test if hdc current drawable is compatible (visual/FBConfig) ?
 492      *
 493      * in case of root window created HDCs we crash here :(
 494      *
 495     Drawable drawable =  get_drawable( physDev->hdc );
 496     TRACE(" drawable (%p,%p) have :\n", drawable, root_window);
 497     pglXQueryDrawable(gdi_display, drawable, GLX_FBCONFIG_ID, (unsigned int*) &value);
 498     TRACE(" - FBCONFIG_ID as 0x%x\n", tmp);
 499     pglXQueryDrawable(gdi_display, drawable, GLX_VISUAL_ID, (unsigned int*) &value);
 500     TRACE(" - VISUAL_ID as 0x%x\n", tmp);
 501     pglXQueryDrawable(gdi_display, drawable, GLX_WIDTH, (unsigned int*) &value);
 502     TRACE(" - WIDTH as %d\n", tmp);
 503     pglXQueryDrawable(gdi_display, drawable, GLX_HEIGHT, (unsigned int*) &value);
 504     TRACE(" - HEIGHT as %d\n", tmp);
 505     */
 506     cfgs_fmt = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs_fmt);
 507     cur_cfg = cfgs_fmt[iPixelFormat - 1];
 508     gl_test = pglXGetFBConfigAttrib(gdi_display, cur_cfg, GLX_FBCONFIG_ID, &value);
 509     if (gl_test) {
 510       ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
 511     } else {
 512       TRACE(" FBConfig have :\n");
 513       TRACE(" - FBCONFIG_ID   0x%x\n", value);
 514       pglXGetFBConfigAttrib(gdi_display, cur_cfg, GLX_VISUAL_ID, &value);
 515       TRACE(" - VISUAL_ID     0x%x\n", value);
 516       pglXGetFBConfigAttrib(gdi_display, cur_cfg, GLX_DRAWABLE_TYPE, &value);
 517       TRACE(" - DRAWABLE_TYPE 0x%x\n", value);
 518     }
 519     XFree(cfgs_fmt);
 520   }
 521   return TRUE;
 522 }
 523
 524 /**
 525  * X11DRV_SwapBuffers
 526  *
 527  * Swap the buffers of this DC
 528  */
 529 BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
 530   if (!has_opengl()) {
 531     ERR("No libGL on this box - disabling OpenGL support !\n");
 532     return 0;
 533   }
 534
 535   TRACE("(%p)\n", physDev);
 536
 537   wine_tsx11_lock();
 538   pglXSwapBuffers(gdi_display, physDev->drawable);
 539   wine_tsx11_unlock();
 540
 541   return TRUE;
 542 }
 543
 544 /***********************************************************************
 545  *              X11DRV_setup_opengl_visual
 546  *
 547  * Setup the default visual used for OpenGL and Direct3D, and the desktop
 548  * window (if it exists).  If OpenGL isn't available, the visual is simply
 549  * set to the default visual for the display
 550  */
 551 XVisualInfo *X11DRV_setup_opengl_visual( Display *display )
 552 {
 553     XVisualInfo *visual = NULL;
 554     /* In order to support OpenGL or D3D, we require a double-buffered visual and stencil buffer support, */
 555     int dblBuf[] = {GLX_RGBA,GLX_DEPTH_SIZE, 16, GLX_STENCIL_SIZE, 8, GLX_DOUBLEBUFFER, None};
 556     if (!has_opengl()) return NULL;
 557
 558     wine_tsx11_lock();
 559     visual = pglXChooseVisual(display, DefaultScreen(display), dblBuf);
 560     wine_tsx11_unlock();
 561     if (visual == NULL) {
 562         /* fallback to no stencil */
 563         int dblBuf2[] = {GLX_RGBA,GLX_DEPTH_SIZE, 16, GLX_DOUBLEBUFFER, None};
 564         WARN("Failed to get a visual with at least 8 bits of stencil\n");
 565
 566         wine_tsx11_lock();
 567         visual = pglXChooseVisual(display, DefaultScreen(display), dblBuf2);
 568         wine_tsx11_unlock();
 569         if (visual == NULL) {
 570             /* This should only happen if we cannot find a match with a depth size 16 */
 571             FIXME("Failed to find a suitable visual\n");
 572             return visual;
 573         }
 574     }
 575     TRACE("Visual ID %lx Chosen\n",visual->visualid);
 576     return visual;
 577 }
 578
 579 XID create_glxpixmap(X11DRV_PDEVICE *physDev)
 580 {
 581     GLXPixmap ret;
 582     XVisualInfo *vis;
 583     XVisualInfo template;
 584     int num;
 585     GLXFBConfig *cfgs;
 586
 587     wine_tsx11_lock();
 588     cfgs = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &num);
 589     pglXGetFBConfigAttrib(gdi_display, cfgs[physDev->current_pf - 1], GLX_VISUAL_ID, (int *)&template.visualid);
 590
 591     vis = XGetVisualInfo(gdi_display, VisualIDMask, &template, &num);
 592
 593     ret = pglXCreateGLXPixmap(gdi_display, vis, physDev->bitmap->pixmap);
 594     XFree(vis);
 595     XFree(cfgs);
 596     wine_tsx11_unlock();
 597     TRACE("return %lx\n", ret);
 598     return ret;
 599 }
 600
 601 BOOL destroy_glxpixmap(XID glxpixmap)
 602 {
 603     wine_tsx11_lock();
 604     pglXDestroyGLXPixmap(gdi_display, glxpixmap);
 605     wine_tsx11_unlock();
 606     return TRUE;
 607 }
 608
 609 #else  /* no OpenGL includes */
 610
 611 void X11DRV_OpenGL_Init(Display *display)
 612 {
 613 }
 614
 615 /***********************************************************************
 616  *              ChoosePixelFormat (X11DRV.@)
 617  */
 618 int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
 619                              const PIXELFORMATDESCRIPTOR *ppfd) {
 620   ERR("No OpenGL support compiled in.\n");
 621
 622   return 0;
 623 }
 624
 625 /***********************************************************************
 626  *              DescribePixelFormat (X11DRV.@)
 627  */
 628 int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
 629                                int iPixelFormat,
 630                                UINT nBytes,
 631                                PIXELFORMATDESCRIPTOR *ppfd) {
 632   ERR("No OpenGL support compiled in.\n");
 633
 634   return 0;
 635 }
 636
 637 /***********************************************************************
 638  *              GetPixelFormat (X11DRV.@)
 639  */
 640 int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
 641   ERR("No OpenGL support compiled in.\n");
 642
 643   return 0;
 644 }
 645
 646 /***********************************************************************
 647  *              SetPixelFormat (X11DRV.@)
 648  */
 649 BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
 650                            int iPixelFormat,
 651                            const PIXELFORMATDESCRIPTOR *ppfd) {
 652   ERR("No OpenGL support compiled in.\n");
 653
 654   return FALSE;
 655 }
 656
 657 /***********************************************************************
 658  *              SwapBuffers (X11DRV.@)
 659  */
 660 BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
 661   ERR("No OpenGL support compiled in.\n");
 662
 663   return FALSE;
 664 }
 665
 666 XVisualInfo *X11DRV_setup_opengl_visual( Display *display )
 667 {
 668   return NULL;
 669 }
 670
 671 XID create_glxpixmap(X11DRV_PDEVICE *physDev)
 672 {
 673     return 0;
 674 }
 675
 676 BOOL destroy_glxpixmap(XID glxpixmap)
 677 {
 678     return FALSE;
 679 }
 680
 681 #endif /* defined(HAVE_OPENGL) */