dlls/opengl32/wgl.c

   1 /* Window-specific OpenGL functions implementation.
   2  *
   3  * Copyright (c) 1999 Lionel Ulmer
   4  * Copyright (c) 2005 Raphael Junqueira
   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winuser.h"
  31 #include "winerror.h"
  32 #include "winreg.h"
  33 #include "wingdi.h"
  34 #include "winternl.h"
  35 #include "winnt.h"
  36
  37 #include "opengl_ext.h"
  38 #ifdef HAVE_GL_GLU_H
  39 #undef far
  40 #undef near
  41 #include <GL/glu.h>
  42 #endif
  43 #include "wine/library.h"
  44 #include "wine/debug.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(wgl);
  47 WINE_DECLARE_DEBUG_CHANNEL(opengl);
  48
  49 typedef struct wine_wgl_s {
  50     PROC WINAPI  (*p_wglGetProcAddress)(LPCSTR  lpszProc);
  51
  52     void WINAPI  (*p_wglDisable)(GLenum cap);
  53     void WINAPI  (*p_wglEnable)(GLenum cap);
  54     void WINAPI  (*p_wglGetIntegerv)(GLenum pname, GLint* params);
  55     GLboolean WINAPI (*p_wglIsEnabled)(GLenum cap);
  56     void WINAPI  (*p_wglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
  57     void WINAPI  (*p_wglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
  58 } wine_wgl_t;
  59
  60 /** global wgl object */
  61 static wine_wgl_t wine_wgl;
  62
  63 /* x11drv GDI escapes */
  64 #define X11DRV_ESCAPE 6789
  65 enum x11drv_escape_codes
  66 {
  67     X11DRV_GET_DISPLAY,         /* get X11 display for a DC */
  68     X11DRV_GET_DRAWABLE,        /* get current drawable for a DC */
  69     X11DRV_GET_FONT,            /* get current X font for a DC */
  70     X11DRV_SET_DRAWABLE,        /* set current drawable for a DC */
  71     X11DRV_START_EXPOSURES,     /* start graphics exposures */
  72     X11DRV_END_EXPOSURES,       /* end graphics exposures */
  73     X11DRV_GET_DCE,             /* get the DCE pointer */
  74     X11DRV_SET_DCE,             /* set the DCE pointer */
  75     X11DRV_GET_GLX_DRAWABLE,    /* get current glx drawable for a DC */
  76     X11DRV_SYNC_PIXMAP          /* sync the dibsection to its pixmap */
  77 };
  78
  79 void (*wine_tsx11_lock_ptr)(void) = NULL;
  80 void (*wine_tsx11_unlock_ptr)(void) = NULL;
  81
  82 static HMODULE opengl32_handle;
  83
  84 static char  internal_gl_disabled_extensions[512];
  85 static BOOL  wowhack = FALSE;
  86 static char* internal_gl_extensions = NULL;
  87
  88 typedef struct wine_glcontext {
  89   HDC hdc;
  90   XVisualInfo *vis;
  91   GLXFBConfig fb_conf;
  92   GLXContext ctx;
  93   BOOL do_escape;
  94   /* ... more stuff here */
  95 } Wine_GLContext;
  96
  97 void enter_gl(void)
  98 {
  99     Wine_GLContext *curctx = (Wine_GLContext *) NtCurrentTeb()->glContext;
 100
 101     if (curctx && curctx->do_escape)
 102     {
 103         enum x11drv_escape_codes escape = X11DRV_SYNC_PIXMAP;
 104         ExtEscape(curctx->hdc, X11DRV_ESCAPE, sizeof(escape), (LPCSTR)&escape, 0, NULL);
 105     }
 106
 107     wine_tsx11_lock_ptr();
 108     return;
 109 }
 110
 111 /*
 112  * Get a config key from either the app-specific or the default config
 113  */
 114
 115 inline static DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
 116                                     char *buffer, DWORD size )
 117 {
 118     if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 119     if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
 120     return ERROR_FILE_NOT_FOUND;
 121 }
 122
 123 const GLubyte * WINAPI wine_glGetString( GLenum name );
 124
 125 /***********************************************************************
 126  *              wglCreateLayerContext (OPENGL32.@)
 127  */
 128 HGLRC WINAPI wglCreateLayerContext(HDC hdc,
 129                                    int iLayerPlane) {
 130   TRACE("(%p,%d)\n", hdc, iLayerPlane);
 131
 132   if (iLayerPlane == 0) {
 133       return wglCreateContext(hdc);
 134   }
 135   FIXME(" no handler for layer %d\n", iLayerPlane);
 136
 137   return NULL;
 138 }
 139
 140 /***********************************************************************
 141  *              wglCopyContext (OPENGL32.@)
 142  */
 143 BOOL WINAPI wglCopyContext(HGLRC hglrcSrc,
 144                            HGLRC hglrcDst,
 145                            UINT mask) {
 146   FIXME("(%p,%p,%d)\n", hglrcSrc, hglrcDst, mask);
 147
 148   return FALSE;
 149 }
 150
 151 /***********************************************************************
 152  *              wglDescribeLayerPlane (OPENGL32.@)
 153  */
 154 BOOL WINAPI wglDescribeLayerPlane(HDC hdc,
 155                                   int iPixelFormat,
 156                                   int iLayerPlane,
 157                                   UINT nBytes,
 158                                   LPLAYERPLANEDESCRIPTOR plpd) {
 159   FIXME("(%p,%d,%d,%d,%p)\n", hdc, iPixelFormat, iLayerPlane, nBytes, plpd);
 160
 161   return FALSE;
 162 }
 163
 164 /***********************************************************************
 165  *              wglGetLayerPaletteEntries (OPENGL32.@)
 166  */
 167 int WINAPI wglGetLayerPaletteEntries(HDC hdc,
 168                                      int iLayerPlane,
 169                                      int iStart,
 170                                      int cEntries,
 171                                      const COLORREF *pcr) {
 172   FIXME("(): stub !\n");
 173
 174   return 0;
 175 }
 176
 177 static int compar(const void *elt_a, const void *elt_b) {
 178   return strcmp(((const OpenGL_extension *) elt_a)->name,
 179                 ((const OpenGL_extension *) elt_b)->name);
 180 }
 181
 182 /* Check if a GL extension is supported */
 183 static BOOL is_extension_supported(const char* extension)
 184 {
 185     const char *gl_ext_string = (const char*)wine_glGetString(GL_EXTENSIONS);
 186
 187     TRACE("Checking for extension '%s'\n", extension);
 188
 189     if(!gl_ext_string) {
 190         ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
 191         return FALSE;
 192     }
 193
 194     /* We use the GetProcAddress function from the display driver to retrieve function pointers
 195      * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done
 196      * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't
 197      * require the function to return NULL when a extension isn't found. For this reason we check
 198      * if the OpenGL extension required for the function we are looking up is supported. */
 199
 200     /* Check if the extension is part of the GL extension string to see if it is supported. */
 201     if(strstr(gl_ext_string, extension) != NULL)
 202         return TRUE;
 203
 204     /* In general an OpenGL function starts as an ARB/EXT extension and at some stage
 205      * it becomes part of the core OpenGL library and can be reached without the ARB/EXT
 206      * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor.
 207      * Check if we are searching for a core GL function */
 208     if(strncmp(extension, "GL_VERSION_", 11) == 0)
 209     {
 210         const GLubyte *gl_version = glGetString(GL_VERSION);
 211         const char *version = extension + 11; /* Move past 'GL_VERSION_' */
 212
 213         if(!gl_version) {
 214             ERR("Error no OpenGL version found,\n");
 215             return FALSE;
 216         }
 217
 218         /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function.
 219          * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */
 220         if( (gl_version[0] >= version[0]) || ((gl_version[0] == version[0]) && (gl_version[2] >= version[2])) ) {
 221             return TRUE;
 222         }
 223         WARN("The function requires OpenGL version '%c.%c' while your drivers only provide '%c.%c'\n", version[0], version[2], gl_version[0], gl_version[2]);
 224     }
 225
 226     return FALSE;
 227 }
 228
 229 /***********************************************************************
 230  *              wglGetProcAddress (OPENGL32.@)
 231  */
 232 PROC WINAPI wglGetProcAddress(LPCSTR  lpszProc) {
 233   void *local_func;
 234   OpenGL_extension  ext;
 235   const OpenGL_extension *ext_ret;
 236
 237   TRACE("(%s)\n", lpszProc);
 238
 239   if(lpszProc == NULL)
 240     return NULL;
 241
 242   /* First, look if it's not already defined in the 'standard' OpenGL functions */
 243   if ((local_func = GetProcAddress(opengl32_handle, lpszProc)) != NULL) {
 244     TRACE(" found function in 'standard' OpenGL functions (%p)\n", local_func);
 245     return local_func;
 246   }
 247
 248   /* After that, search in the thunks to find the real name of the extension */
 249   ext.name = lpszProc;
 250   ext_ret = (const OpenGL_extension *) bsearch(&ext, extension_registry,
 251                                          extension_registry_size, sizeof(OpenGL_extension), compar);
 252
 253   /* If nothing was found, we are looking for a WGL extension or an unknown GL extension. */
 254   if (ext_ret == NULL) {
 255     /* If the function name starts with a w it is a WGL extension */
 256     if(lpszProc[0] == 'w')
 257       return wine_wgl.p_wglGetProcAddress(lpszProc);
 258
 259     /* We are dealing with an unknown GL extension. */
 260     WARN("Extension '%s' not defined in opengl32.dll's function table!\n", lpszProc);
 261     return NULL;
 262   } else { /* We are looking for an OpenGL extension */
 263
 264     /* Check if the GL extension required by the function is available */
 265     if(!is_extension_supported(ext_ret->extension)) {
 266         WARN("Extension '%s' required by function '%s' not supported!\n", ext_ret->extension, lpszProc);
 267         return NULL;
 268     }
 269
 270     local_func = wine_wgl.p_wglGetProcAddress(ext_ret->name);
 271
 272     /* After that, look at the extensions defined in the Linux OpenGL library */
 273     if (local_func == NULL) {
 274       char buf[256];
 275       void *ret = NULL;
 276
 277       /* Remove the 3 last letters (EXT, ARB, ...).
 278
 279          I know that some extensions have more than 3 letters (MESA, NV,
 280          INTEL, ...), but this is only a stop-gap measure to fix buggy
 281          OpenGL drivers (moreover, it is only useful for old 1.0 apps
 282          that query the glBindTextureEXT extension).
 283       */
 284       memcpy(buf, ext_ret->name, strlen(ext_ret->name) - 3);
 285       buf[strlen(ext_ret->name) - 3] = '\0';
 286       TRACE(" extension not found in the Linux OpenGL library, checking against libGL bug with %s..\n", buf);
 287
 288       ret = GetProcAddress(opengl32_handle, buf);
 289       if (ret != NULL) {
 290         TRACE(" found function in main OpenGL library (%p) !\n", ret);
 291       } else {
 292         WARN("Did not find function %s (%s) in your OpenGL library !\n", lpszProc, ext_ret->name);
 293       }
 294
 295       return ret;
 296     } else {
 297       TRACE(" returning function  (%p)\n", ext_ret->func);
 298       extension_funcs[ext_ret - extension_registry] = local_func;
 299
 300       return ext_ret->func;
 301     }
 302   }
 303 }
 304
 305 /***********************************************************************
 306  *              wglRealizeLayerPalette (OPENGL32.@)
 307  */
 308 BOOL WINAPI wglRealizeLayerPalette(HDC hdc,
 309                                    int iLayerPlane,
 310                                    BOOL bRealize) {
 311   FIXME("()\n");
 312
 313   return FALSE;
 314 }
 315
 316 /***********************************************************************
 317  *              wglSetLayerPaletteEntries (OPENGL32.@)
 318  */
 319 int WINAPI wglSetLayerPaletteEntries(HDC hdc,
 320                                      int iLayerPlane,
 321                                      int iStart,
 322                                      int cEntries,
 323                                      const COLORREF *pcr) {
 324   FIXME("(): stub !\n");
 325
 326   return 0;
 327 }
 328
 329 /***********************************************************************
 330  *              wglSwapLayerBuffers (OPENGL32.@)
 331  */
 332 BOOL WINAPI wglSwapLayerBuffers(HDC hdc,
 333                                 UINT fuPlanes) {
 334   TRACE_(opengl)("(%p, %08x)\n", hdc, fuPlanes);
 335
 336   if (fuPlanes & WGL_SWAP_MAIN_PLANE) {
 337     if (!SwapBuffers(hdc)) return FALSE;
 338     fuPlanes &= ~WGL_SWAP_MAIN_PLANE;
 339   }
 340
 341   if (fuPlanes) {
 342     WARN("Following layers unhandled : %08x\n", fuPlanes);
 343   }
 344
 345   return TRUE;
 346 }
 347
 348 #ifdef HAVE_GL_GLU_H
 349
 350 static void fixed_to_double(POINTFX fixed, UINT em_size, GLdouble vertex[3])
 351 {
 352     vertex[0] = (fixed.x.value + (GLdouble)fixed.x.fract / (1 << 16)) / em_size;
 353     vertex[1] = (fixed.y.value + (GLdouble)fixed.y.fract / (1 << 16)) / em_size;
 354     vertex[2] = 0.0;
 355 }
 356
 357 static void tess_callback_vertex(GLvoid *vertex)
 358 {
 359     GLdouble *dbl = vertex;
 360     TRACE("%f, %f, %f\n", dbl[0], dbl[1], dbl[2]);
 361     glVertex3dv(vertex);
 362 }
 363
 364 static void tess_callback_begin(GLenum which)
 365 {
 366     TRACE("%d\n", which);
 367     glBegin(which);
 368 }
 369
 370 static void tess_callback_end(void)
 371 {
 372     TRACE("\n");
 373     glEnd();
 374 }
 375
 376 /***********************************************************************
 377  *              wglUseFontOutlines_common
 378  */
 379 static BOOL WINAPI wglUseFontOutlines_common(HDC hdc,
 380                                       DWORD first,
 381                                       DWORD count,
 382                                       DWORD listBase,
 383                                       FLOAT deviation,
 384                                       FLOAT extrusion,
 385                                       int format,
 386                                       LPGLYPHMETRICSFLOAT lpgmf,
 387                                       BOOL unicode)
 388 {
 389     UINT glyph;
 390     const MAT2 identity = {{0,1},{0,0},{0,0},{0,1}};
 391     GLUtesselator *tess;
 392     LOGFONTW lf;
 393     HFONT old_font, unscaled_font;
 394     UINT em_size = 1024;
 395     RECT rc;
 396
 397     TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc, first, count,
 398           listBase, deviation, extrusion, format, lpgmf, unicode ? "W" : "A");
 399
 400
 401     ENTER_GL();
 402     tess = gluNewTess();
 403     if(tess)
 404     {
 405         gluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex);
 406         gluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin);
 407         gluTessCallback(tess, GLU_TESS_END, tess_callback_end);
 408     }
 409     LEAVE_GL();
 410
 411     if(!tess) return FALSE;
 412
 413     GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf);
 414     rc.left = rc.right = rc.bottom = 0;
 415     rc.top = em_size;
 416     DPtoLP(hdc, (POINT*)&rc, 2);
 417     lf.lfHeight = -abs(rc.top - rc.bottom);
 418     lf.lfOrientation = lf.lfEscapement = 0;
 419     unscaled_font = CreateFontIndirectW(&lf);
 420     old_font = SelectObject(hdc, unscaled_font);
 421
 422     for (glyph = first; glyph < first + count; glyph++)
 423     {
 424         DWORD needed;
 425         GLYPHMETRICS gm;
 426         BYTE *buf;
 427         TTPOLYGONHEADER *pph;
 428         TTPOLYCURVE *ppc;
 429         GLdouble *vertices;
 430
 431         if(unicode)
 432             needed = GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
 433         else
 434             needed = GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
 435
 436         if(needed == GDI_ERROR)
 437             goto error;
 438
 439         buf = HeapAlloc(GetProcessHeap(), 0, needed);
 440         vertices = HeapAlloc(GetProcessHeap(), 0, needed / sizeof(POINTFX) * 3 * sizeof(GLdouble));
 441
 442         if(unicode)
 443             GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
 444         else
 445             GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
 446
 447         TRACE("glyph %d\n", glyph);
 448
 449         if(lpgmf)
 450         {
 451             lpgmf->gmfBlackBoxX = (float)gm.gmBlackBoxX / em_size;
 452             lpgmf->gmfBlackBoxY = (float)gm.gmBlackBoxY / em_size;
 453             lpgmf->gmfptGlyphOrigin.x = (float)gm.gmptGlyphOrigin.x / em_size;
 454             lpgmf->gmfptGlyphOrigin.y = (float)gm.gmptGlyphOrigin.y / em_size;
 455             lpgmf->gmfCellIncX = (float)gm.gmCellIncX / em_size;
 456             lpgmf->gmfCellIncY = (float)gm.gmCellIncY / em_size;
 457
 458             TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf->gmfBlackBoxX, lpgmf->gmfBlackBoxY,
 459                   lpgmf->gmfptGlyphOrigin.x, lpgmf->gmfptGlyphOrigin.y, lpgmf->gmfCellIncX, lpgmf->gmfCellIncY);
 460             lpgmf++;
 461         }
 462
 463         ENTER_GL();
 464         glNewList(listBase++, GL_COMPILE);
 465         gluTessBeginPolygon(tess, NULL);
 466
 467         pph = (TTPOLYGONHEADER*)buf;
 468         while((BYTE*)pph < buf + needed)
 469         {
 470             TRACE("\tstart %d, %d\n", pph->pfxStart.x.value, pph->pfxStart.y.value);
 471
 472             gluTessBeginContour(tess);
 473
 474             fixed_to_double(pph->pfxStart, em_size, vertices);
 475             gluTessVertex(tess, vertices, vertices);
 476             vertices += 3;
 477
 478             ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
 479             while((char*)ppc < (char*)pph + pph->cb)
 480             {
 481                 int i;
 482
 483                 switch(ppc->wType) {
 484                 case TT_PRIM_LINE:
 485                     for(i = 0; i < ppc->cpfx; i++)
 486                     {
 487                         TRACE("\t\tline to %d, %d\n", ppc->apfx[i].x.value, ppc->apfx[i].y.value);
 488                         fixed_to_double(ppc->apfx[i], em_size, vertices);
 489                         gluTessVertex(tess, vertices, vertices);
 490                         vertices += 3;
 491                     }
 492                     break;
 493
 494                 case TT_PRIM_QSPLINE:
 495                     for(i = 0; i < ppc->cpfx/2; i++)
 496                     {
 497                         /* FIXME just connecting the control points for now */
 498                         TRACE("\t\tcurve  %d,%d %d,%d\n",
 499                               ppc->apfx[i * 2].x.value,     ppc->apfx[i * 3].y.value,
 500                               ppc->apfx[i * 2 + 1].x.value, ppc->apfx[i * 3 + 1].y.value);
 501                         fixed_to_double(ppc->apfx[i * 2], em_size, vertices);
 502                         gluTessVertex(tess, vertices, vertices);
 503                         vertices += 3;
 504                         fixed_to_double(ppc->apfx[i * 2 + 1], em_size, vertices);
 505                         gluTessVertex(tess, vertices, vertices);
 506                         vertices += 3;
 507                     }
 508                     break;
 509                 default:
 510                     ERR("\t\tcurve type = %d\n", ppc->wType);
 511                     gluTessEndContour(tess);
 512                     goto error_in_list;
 513                 }
 514
 515                 ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
 516                                      (ppc->cpfx - 1) * sizeof(POINTFX));
 517             }
 518             gluTessEndContour(tess);
 519             pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
 520         }
 521
 522 error_in_list:
 523         gluTessEndPolygon(tess);
 524         glTranslated((GLdouble)gm.gmCellIncX / em_size, (GLdouble)gm.gmCellIncY / em_size, 0.0);
 525         glEndList();
 526         LEAVE_GL();
 527         HeapFree(GetProcessHeap(), 0, buf);
 528         HeapFree(GetProcessHeap(), 0, vertices);
 529     }
 530
 531  error:
 532     DeleteObject(SelectObject(hdc, old_font));
 533     gluDeleteTess(tess);
 534     return TRUE;
 535
 536 }
 537
 538 #else /* HAVE_GL_GLU_H */
 539
 540 static BOOL WINAPI wglUseFontOutlines_common(HDC hdc,
 541                                       DWORD first,
 542                                       DWORD count,
 543                                       DWORD listBase,
 544                                       FLOAT deviation,
 545                                       FLOAT extrusion,
 546                                       int format,
 547                                       LPGLYPHMETRICSFLOAT lpgmf,
 548                                       BOOL unicode)
 549 {
 550     FIXME("Unable to compile in wglUseFontOutlines support without GL/glu.h\n");
 551     return FALSE;
 552 }
 553
 554 #endif /* HAVE_GL_GLU_H */
 555
 556 /***********************************************************************
 557  *              wglUseFontOutlinesA (OPENGL32.@)
 558  */
 559 BOOL WINAPI wglUseFontOutlinesA(HDC hdc,
 560                                 DWORD first,
 561                                 DWORD count,
 562                                 DWORD listBase,
 563                                 FLOAT deviation,
 564                                 FLOAT extrusion,
 565                                 int format,
 566                                 LPGLYPHMETRICSFLOAT lpgmf)
 567 {
 568     return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, FALSE);
 569 }
 570
 571 /***********************************************************************
 572  *              wglUseFontOutlinesW (OPENGL32.@)
 573  */
 574 BOOL WINAPI wglUseFontOutlinesW(HDC hdc,
 575                                 DWORD first,
 576                                 DWORD count,
 577                                 DWORD listBase,
 578                                 FLOAT deviation,
 579                                 FLOAT extrusion,
 580                                 int format,
 581                                 LPGLYPHMETRICSFLOAT lpgmf)
 582 {
 583     return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, TRUE);
 584 }
 585
 586 /***********************************************************************
 587  *              glEnable (OPENGL32.@)
 588  */
 589 void WINAPI wine_glEnable( GLenum cap )
 590 {
 591     TRACE("(%d)\n", cap );
 592     wine_wgl.p_wglEnable(cap);
 593 }
 594
 595 /***********************************************************************
 596  *              glIsEnabled (OPENGL32.@)
 597  */
 598 GLboolean WINAPI wine_glIsEnabled( GLenum cap )
 599 {
 600     TRACE("(%d)\n", cap );
 601     return wine_wgl.p_wglIsEnabled(cap);
 602 }
 603
 604 /***********************************************************************
 605  *              glDisable (OPENGL32.@)
 606  */
 607 void WINAPI wine_glDisable( GLenum cap )
 608 {
 609     TRACE("(%d)\n", cap );
 610     wine_wgl.p_wglDisable(cap);
 611 }
 612
 613 /***********************************************************************
 614  *              glScissor (OPENGL32.@)
 615  */
 616 void WINAPI wine_glScissor( GLint x, GLint y, GLsizei width, GLsizei height )
 617 {
 618     TRACE("(%d, %d, %d, %d)\n", x, y, width, height );
 619     wine_wgl.p_wglScissor(x, y, width, height);
 620 }
 621
 622 /***********************************************************************
 623  *              glViewport (OPENGL32.@)
 624  */
 625 void WINAPI wine_glViewport( GLint x, GLint y, GLsizei width, GLsizei height )
 626 {
 627     TRACE("(%d, %d, %d, %d)\n", x, y, width, height );
 628     wine_wgl.p_wglViewport(x, y, width, height);
 629 }
 630
 631 /***********************************************************************
 632  *              glGetString (OPENGL32.@)
 633  */
 634 const GLubyte * WINAPI wine_glGetString( GLenum name )
 635 {
 636   const GLubyte *ret;
 637   const char* GL_Extensions = NULL;
 638
 639   if (GL_EXTENSIONS != name) {
 640     ENTER_GL();
 641     ret = glGetString(name);
 642     LEAVE_GL();
 643     return ret;
 644   }
 645
 646   if (NULL == internal_gl_extensions) {
 647     ENTER_GL();
 648     GL_Extensions = (const char *) glGetString(GL_EXTENSIONS);
 649
 650     if (GL_Extensions)
 651     {
 652       size_t len = strlen(GL_Extensions);
 653       internal_gl_extensions = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len + 2);
 654
 655       TRACE("GL_EXTENSIONS reported:\n");
 656       while (*GL_Extensions != 0x00) {
 657         const char* Start = GL_Extensions;
 658         char        ThisExtn[256];
 659
 660         while (*GL_Extensions != ' ' && *GL_Extensions != 0x00) {
 661           GL_Extensions++;
 662         }
 663         memcpy(ThisExtn, Start, (GL_Extensions - Start));
 664         ThisExtn[GL_Extensions - Start] = 0;
 665         TRACE("- %s:", ThisExtn);
 666
 667         /* test if supported API is disabled by config */
 668         if (NULL == strstr(internal_gl_disabled_extensions, ThisExtn)) {
 669           strcat(internal_gl_extensions, " ");
 670           strcat(internal_gl_extensions, ThisExtn);
 671           TRACE(" active\n");
 672         } else {
 673           TRACE(" deactived (by config)\n");
 674         }
 675
 676         if (*GL_Extensions == ' ') GL_Extensions++;
 677       }
 678     }
 679     LEAVE_GL();
 680   }
 681   return (const GLubyte *) internal_gl_extensions;
 682 }
 683
 684 /***********************************************************************
 685  *              glGetIntegerv (OPENGL32.@)
 686  */
 687 void WINAPI wine_glGetIntegerv( GLenum pname, GLint* params )
 688 {
 689     wine_wgl.p_wglGetIntegerv(pname, params);
 690 }
 691
 692
 693 /* No need to load any other libraries as according to the ABI, libGL should be self-sufficient and
 694    include all dependencies
 695 */
 696 #ifndef SONAME_LIBGL
 697 #define SONAME_LIBGL "libGL.so"
 698 #endif
 699
 700 #define IS_OPTION_TRUE(ch) \
 701     ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
 702 #define IS_OPTION_FALSE(ch) \
 703     ((ch) == 'n' || (ch) == 'N' || (ch) == 'f' || (ch) == 'F' || (ch) == '0')
 704
 705 /* This is for brain-dead applications that use OpenGL functions before even
 706    creating a rendering context.... */
 707 static BOOL process_attach(void)
 708 {
 709   HMODULE mod_x11, mod_gdi32;
 710   DWORD size = sizeof(internal_gl_disabled_extensions);
 711   char tmp[32];
 712   HKEY hkey = 0;
 713   HKEY appkey = 0;
 714   char buffer[MAX_PATH+10];
 715   DWORD len;
 716
 717   GetDesktopWindow();  /* make sure winex11 is loaded (FIXME) */
 718   mod_x11 = GetModuleHandleA( "winex11.drv" );
 719   mod_gdi32 = GetModuleHandleA( "gdi32.dll" );
 720
 721   if (!mod_x11 || !mod_gdi32)
 722   {
 723       ERR("X11DRV or GDI32 not loaded. Cannot create default context.\n");
 724       return FALSE;
 725   }
 726
 727   wine_tsx11_lock_ptr   = (void *)GetProcAddress( mod_x11, "wine_tsx11_lock" );
 728   wine_tsx11_unlock_ptr = (void *)GetProcAddress( mod_x11, "wine_tsx11_unlock" );
 729
 730   wine_wgl.p_wglGetProcAddress = (void *)GetProcAddress(mod_gdi32, "wglGetProcAddress");
 731
 732   /* Interal WGL function */
 733   wine_wgl.p_wglDisable = (void *)wine_wgl.p_wglGetProcAddress("wglDisable");
 734   wine_wgl.p_wglEnable = (void *)wine_wgl.p_wglGetProcAddress("wglEnable");
 735   wine_wgl.p_wglGetIntegerv = (void *)wine_wgl.p_wglGetProcAddress("wglGetIntegerv");
 736   wine_wgl.p_wglIsEnabled = (void *)wine_wgl.p_wglGetProcAddress("wglIsEnabled");
 737   wine_wgl.p_wglScissor = (void *)wine_wgl.p_wglGetProcAddress("wglScissor");
 738   wine_wgl.p_wglViewport = (void *)wine_wgl.p_wglGetProcAddress("wglViewport");
 739
 740   internal_gl_disabled_extensions[0] = 0;
 741
 742   /* @@ Wine registry key: HKLM\Software\Wine\OpenGL */
 743   if ( RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\OpenGL", &hkey) ) hkey = 0;
 744
 745   len = GetModuleFileNameA( 0, buffer, MAX_PATH );
 746   if (len && len < MAX_PATH)
 747   {
 748     HKEY tmpkey;
 749     /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\OpenGL */
 750     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
 751     {
 752       char *p, *appname = buffer;
 753       if ((p = strrchr( appname, '/' ))) appname = p + 1;
 754       if ((p = strrchr( appname, '\\' ))) appname = p + 1;
 755       strcat( appname, "\\OpenGL" );
 756       TRACE("appname = [%s]\n", appname);
 757       if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
 758       RegCloseKey( tmpkey );
 759     }
 760   }
 761
 762   if ( 0 != hkey || 0 != appkey ) {
 763     if ( !get_config_key( hkey, appkey, "DisabledExtensions", internal_gl_disabled_extensions, size) ) {
 764       TRACE("found DisabledExtensions=\"%s\"\n", internal_gl_disabled_extensions);
 765     }
 766     size = sizeof(tmp);
 767     if ( !get_config_key( hkey, appkey, "wowhack", tmp, size) ) {
 768         TRACE("found wowhack=\"%s\"\n", tmp);
 769         if(IS_OPTION_TRUE(tmp[0])) wowhack = TRUE;
 770     }
 771
 772     if (appkey)
 773         RegCloseKey( appkey );
 774     if (hkey)
 775         RegCloseKey( hkey );
 776   }
 777
 778   return TRUE;
 779 }
 780
 781
 782 /**********************************************************************/
 783
 784 static void process_detach(void)
 785 {
 786   HeapFree(GetProcessHeap(), 0, internal_gl_extensions);
 787 }
 788
 789 /***********************************************************************
 790  *           OpenGL initialisation routine
 791  */
 792 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
 793 {
 794     switch(reason)
 795     {
 796     case DLL_PROCESS_ATTACH:
 797         opengl32_handle = hinst;
 798         DisableThreadLibraryCalls(hinst);
 799         return process_attach();
 800     case DLL_PROCESS_DETACH:
 801         process_detach();
 802         break;
 803     }
 804     return TRUE;
 805 }