1 /* Window-specific OpenGL functions implementation.
3 * Copyright (c) 1999 Lionel Ulmer
4 * Copyright (c) 2005 Raphael Junqueira
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.
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.
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
22 #include "wine/port.h"
36 #include "opengl_ext.h"
42 #include "wine/library.h"
43 #include "wine/debug.h"
45 WINE_DEFAULT_DEBUG_CHANNEL(wgl);
46 WINE_DECLARE_DEBUG_CHANNEL(opengl);
50 PROC (WINAPI *p_wglGetProcAddress)(LPCSTR lpszProc);
51 BOOL (WINAPI *p_SetPixelFormat)(HDC hdc, INT iPixelFormat, const PIXELFORMATDESCRIPTOR *ppfd);
52 BOOL (WINAPI *p_wglCopyContext)(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask);
53 BOOL (WINAPI *p_wglDeleteContext)(HGLRC hglrc);
54 BOOL (WINAPI *p_wglMakeCurrent)(HDC hdc, HGLRC hglrc);
55 BOOL (WINAPI *p_wglShareLists)(HGLRC hglrc1, HGLRC hglrc2);
56 BOOL (WINAPI *p_wglUseFontBitmapsA)(HDC hdc, DWORD first, DWORD count, DWORD listBase);
57 BOOL (WINAPI *p_wglUseFontBitmapsW)(HDC hdc, DWORD first, DWORD count, DWORD listBase);
58 HDC (WINAPI *p_wglGetCurrentDC)(void);
59 HGLRC (WINAPI *p_wglCreateContext)(HDC hdc);
60 HGLRC (WINAPI *p_wglGetCurrentContext)(void);
61 INT (WINAPI *p_ChoosePixelFormat)(HDC hdc, const PIXELFORMATDESCRIPTOR* ppfd);
62 INT (WINAPI *p_DescribePixelFormat)(HDC hdc, INT iPixelFormat, UINT nBytes, LPPIXELFORMATDESCRIPTOR ppfd);
63 INT (WINAPI *p_GetPixelFormat)(HDC hdc);
65 /* Interal WGL function */
66 void (WINAPI *p_wglGetIntegerv)(GLenum pname, GLint* params);
67 void (WINAPI *p_wglFinish)(void);
68 void (WINAPI *p_wglFlush)(void);
72 #define MAKE_FUNCPTR(f) static typeof(f) * p##f;
73 MAKE_FUNCPTR(gluNewTess)
74 MAKE_FUNCPTR(gluDeleteTess)
75 MAKE_FUNCPTR(gluTessBeginContour)
76 MAKE_FUNCPTR(gluTessBeginPolygon)
77 MAKE_FUNCPTR(gluTessCallback)
78 MAKE_FUNCPTR(gluTessEndContour)
79 MAKE_FUNCPTR(gluTessEndPolygon)
80 MAKE_FUNCPTR(gluTessVertex)
82 #endif /* SONAME_LIBGLU */
84 /* x11drv GDI escapes */
85 #define X11DRV_ESCAPE 6789
86 enum x11drv_escape_codes
88 X11DRV_GET_DISPLAY, /* get X11 display for a DC */
89 X11DRV_GET_DRAWABLE, /* get current drawable for a DC */
90 X11DRV_GET_FONT, /* get current X font for a DC */
91 X11DRV_SET_DRAWABLE, /* set current drawable for a DC */
92 X11DRV_START_EXPOSURES, /* start graphics exposures */
93 X11DRV_END_EXPOSURES, /* end graphics exposures */
94 X11DRV_GET_DCE, /* get the DCE pointer */
95 X11DRV_SET_DCE, /* set the DCE pointer */
96 X11DRV_GET_GLX_DRAWABLE, /* get current glx drawable for a DC */
97 X11DRV_SYNC_PIXMAP /* sync the dibsection to its pixmap */
100 void (*wine_tsx11_lock_ptr)(void) = NULL;
101 void (*wine_tsx11_unlock_ptr)(void) = NULL;
103 static HMODULE opengl32_handle;
104 static void* libglu_handle = NULL;
106 static char* internal_gl_disabled_extensions = NULL;
107 static char* internal_gl_extensions = NULL;
109 typedef struct wine_glcontext {
112 /* ... more stuff here */
117 Wine_GLContext *curctx = NtCurrentTeb()->glContext;
119 if (curctx && curctx->do_escape)
121 enum x11drv_escape_codes escape = X11DRV_SYNC_PIXMAP;
122 ExtEscape(curctx->hdc, X11DRV_ESCAPE, sizeof(escape), (LPCSTR)&escape, 0, NULL);
125 wine_tsx11_lock_ptr();
129 const GLubyte * WINAPI wine_glGetString( GLenum name );
131 /***********************************************************************
132 * wglSetPixelFormat(OPENGL32.@)
134 BOOL WINAPI wglSetPixelFormat( HDC hdc, INT iPixelFormat,
135 const PIXELFORMATDESCRIPTOR *ppfd)
137 return wine_wgl.p_SetPixelFormat(hdc, iPixelFormat, ppfd);
140 /***********************************************************************
141 * wglCopyContext (OPENGL32.@)
143 BOOL WINAPI wglCopyContext(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask)
145 return wine_wgl.p_wglCopyContext(hglrcSrc, hglrcDst, mask);
148 /***********************************************************************
149 * wglDeleteContext (OPENGL32.@)
151 BOOL WINAPI wglDeleteContext(HGLRC hglrc)
153 return wine_wgl.p_wglDeleteContext(hglrc);
156 /***********************************************************************
157 * wglMakeCurrent (OPENGL32.@)
159 BOOL WINAPI wglMakeCurrent(HDC hdc, HGLRC hglrc)
161 return wine_wgl.p_wglMakeCurrent(hdc, hglrc);
164 /***********************************************************************
165 * wglShareLists (OPENGL32.@)
167 BOOL WINAPI wglShareLists(HGLRC hglrc1, HGLRC hglrc2)
169 return wine_wgl.p_wglShareLists(hglrc1, hglrc2);
172 /***********************************************************************
173 * wglUseFontBitmapsA (OPENGL32.@)
175 BOOL WINAPI wglUseFontBitmapsA(HDC hdc, DWORD first, DWORD count, DWORD listBase)
177 return wine_wgl.p_wglUseFontBitmapsA(hdc, first, count, listBase);
180 /***********************************************************************
181 * wglUseFontBitmapsW (OPENGL32.@)
183 BOOL WINAPI wglUseFontBitmapsW(HDC hdc, DWORD first, DWORD count, DWORD listBase)
185 return wine_wgl.p_wglUseFontBitmapsW(hdc, first, count, listBase);
188 /***********************************************************************
189 * wglGetCurrentDC (OPENGL32.@)
191 HDC WINAPI wglGetCurrentDC(void)
193 return wine_wgl.p_wglGetCurrentDC();
196 /***********************************************************************
197 * wglCreateContext (OPENGL32.@)
199 HGLRC WINAPI wglCreateContext(HDC hdc)
201 return wine_wgl.p_wglCreateContext(hdc);
204 /***********************************************************************
205 * wglGetCurrentContext (OPENGL32.@)
207 HGLRC WINAPI wglGetCurrentContext(void)
209 return wine_wgl.p_wglGetCurrentContext();
212 /***********************************************************************
213 * wglChoosePixelFormat (OPENGL32.@)
215 INT WINAPI wglChoosePixelFormat(HDC hdc, const PIXELFORMATDESCRIPTOR* ppfd)
217 return wine_wgl.p_ChoosePixelFormat(hdc, ppfd);
220 /***********************************************************************
221 * wglDescribePixelFormat (OPENGL32.@)
223 INT WINAPI wglDescribePixelFormat(HDC hdc, INT iPixelFormat, UINT nBytes,
224 LPPIXELFORMATDESCRIPTOR ppfd)
226 return wine_wgl.p_DescribePixelFormat(hdc, iPixelFormat, nBytes, ppfd);
228 /***********************************************************************
229 * wglGetPixelFormat (OPENGL32.@)
231 INT WINAPI wglGetPixelFormat(HDC hdc)
233 return wine_wgl.p_GetPixelFormat(hdc);
236 /***********************************************************************
237 * wglCreateLayerContext (OPENGL32.@)
239 HGLRC WINAPI wglCreateLayerContext(HDC hdc,
241 TRACE("(%p,%d)\n", hdc, iLayerPlane);
243 if (iLayerPlane == 0) {
244 return wglCreateContext(hdc);
246 FIXME(" no handler for layer %d\n", iLayerPlane);
251 /***********************************************************************
252 * wglDescribeLayerPlane (OPENGL32.@)
254 BOOL WINAPI wglDescribeLayerPlane(HDC hdc,
258 LPLAYERPLANEDESCRIPTOR plpd) {
259 FIXME("(%p,%d,%d,%d,%p)\n", hdc, iPixelFormat, iLayerPlane, nBytes, plpd);
264 /***********************************************************************
265 * wglGetLayerPaletteEntries (OPENGL32.@)
267 int WINAPI wglGetLayerPaletteEntries(HDC hdc,
271 const COLORREF *pcr) {
272 FIXME("(): stub !\n");
277 static int compar(const void *elt_a, const void *elt_b) {
278 return strcmp(((const OpenGL_extension *) elt_a)->name,
279 ((const OpenGL_extension *) elt_b)->name);
282 /* Check if a GL extension is supported */
283 static BOOL is_extension_supported(const char* extension)
285 const char *gl_ext_string = (const char*)wine_glGetString(GL_EXTENSIONS);
287 TRACE("Checking for extension '%s'\n", extension);
290 ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
294 /* We use the GetProcAddress function from the display driver to retrieve function pointers
295 * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done
296 * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't
297 * require the function to return NULL when a extension isn't found. For this reason we check
298 * if the OpenGL extension required for the function we are looking up is supported. */
300 /* Check if the extension is part of the GL extension string to see if it is supported. */
301 if(strstr(gl_ext_string, extension) != NULL)
304 /* In general an OpenGL function starts as an ARB/EXT extension and at some stage
305 * it becomes part of the core OpenGL library and can be reached without the ARB/EXT
306 * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor.
307 * Check if we are searching for a core GL function */
308 if(strncmp(extension, "GL_VERSION_", 11) == 0)
310 const GLubyte *gl_version = glGetString(GL_VERSION);
311 const char *version = extension + 11; /* Move past 'GL_VERSION_' */
314 ERR("Error no OpenGL version found,\n");
318 /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function.
319 * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */
320 if( (gl_version[0] >= version[0]) || ((gl_version[0] == version[0]) && (gl_version[2] >= version[2])) ) {
323 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]);
329 /***********************************************************************
330 * wglGetProcAddress (OPENGL32.@)
332 PROC WINAPI wglGetProcAddress(LPCSTR lpszProc) {
334 OpenGL_extension ext;
335 const OpenGL_extension *ext_ret;
337 TRACE("(%s)\n", lpszProc);
342 /* First, look if it's not already defined in the 'standard' OpenGL functions */
343 if ((local_func = GetProcAddress(opengl32_handle, lpszProc)) != NULL) {
344 TRACE(" found function in 'standard' OpenGL functions (%p)\n", local_func);
348 /* After that, search in the thunks to find the real name of the extension */
350 ext_ret = bsearch(&ext, extension_registry, extension_registry_size,
351 sizeof(OpenGL_extension), compar);
353 /* If nothing was found, we are looking for a WGL extension or an unknown GL extension. */
354 if (ext_ret == NULL) {
355 /* If the function name starts with a w it is a WGL extension */
356 if(lpszProc[0] == 'w')
357 return wine_wgl.p_wglGetProcAddress(lpszProc);
359 /* We are dealing with an unknown GL extension. */
360 WARN("Extension '%s' not defined in opengl32.dll's function table!\n", lpszProc);
362 } else { /* We are looking for an OpenGL extension */
364 /* Check if the GL extension required by the function is available */
365 if(!is_extension_supported(ext_ret->extension)) {
366 WARN("Extension '%s' required by function '%s' not supported!\n", ext_ret->extension, lpszProc);
369 local_func = wine_wgl.p_wglGetProcAddress(ext_ret->name);
371 /* After that, look at the extensions defined in the Linux OpenGL library */
372 if (local_func == NULL) {
376 /* Remove the 3 last letters (EXT, ARB, ...).
378 I know that some extensions have more than 3 letters (MESA, NV,
379 INTEL, ...), but this is only a stop-gap measure to fix buggy
380 OpenGL drivers (moreover, it is only useful for old 1.0 apps
381 that query the glBindTextureEXT extension).
383 memcpy(buf, ext_ret->name, strlen(ext_ret->name) - 3);
384 buf[strlen(ext_ret->name) - 3] = '\0';
385 TRACE(" extension not found in the Linux OpenGL library, checking against libGL bug with %s..\n", buf);
387 ret = GetProcAddress(opengl32_handle, buf);
389 TRACE(" found function in main OpenGL library (%p) !\n", ret);
391 WARN("Did not find function %s (%s) in your OpenGL library !\n", lpszProc, ext_ret->name);
396 TRACE(" returning function (%p)\n", ext_ret->func);
397 extension_funcs[ext_ret - extension_registry] = local_func;
399 return ext_ret->func;
404 /***********************************************************************
405 * wglRealizeLayerPalette (OPENGL32.@)
407 BOOL WINAPI wglRealizeLayerPalette(HDC hdc,
415 /***********************************************************************
416 * wglSetLayerPaletteEntries (OPENGL32.@)
418 int WINAPI wglSetLayerPaletteEntries(HDC hdc,
422 const COLORREF *pcr) {
423 FIXME("(): stub !\n");
428 /***********************************************************************
429 * wglSwapLayerBuffers (OPENGL32.@)
431 BOOL WINAPI wglSwapLayerBuffers(HDC hdc,
433 TRACE_(opengl)("(%p, %08x)\n", hdc, fuPlanes);
435 if (fuPlanes & WGL_SWAP_MAIN_PLANE) {
436 if (!SwapBuffers(hdc)) return FALSE;
437 fuPlanes &= ~WGL_SWAP_MAIN_PLANE;
441 WARN("Following layers unhandled : %08x\n", fuPlanes);
449 static void *load_libglu(void)
451 static int already_loaded;
454 if (already_loaded) return libglu_handle;
457 TRACE("Trying to load GLU library: %s\n", SONAME_LIBGLU);
458 handle = wine_dlopen(SONAME_LIBGLU, RTLD_NOW, NULL, 0);
461 WARN("Failed to load %s\n", SONAME_LIBGLU);
465 #define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(handle, #f, NULL, 0)) == NULL) goto sym_not_found;
466 LOAD_FUNCPTR(gluNewTess)
467 LOAD_FUNCPTR(gluDeleteTess)
468 LOAD_FUNCPTR(gluTessBeginContour)
469 LOAD_FUNCPTR(gluTessBeginPolygon)
470 LOAD_FUNCPTR(gluTessCallback)
471 LOAD_FUNCPTR(gluTessEndContour)
472 LOAD_FUNCPTR(gluTessEndPolygon)
473 LOAD_FUNCPTR(gluTessVertex)
475 libglu_handle = handle;
479 WARN("Unable to load function ptrs from libGLU\n");
480 /* Close the library as we won't use it */
481 wine_dlclose(handle, NULL, 0);
485 static void fixed_to_double(POINTFX fixed, UINT em_size, GLdouble vertex[3])
487 vertex[0] = (fixed.x.value + (GLdouble)fixed.x.fract / (1 << 16)) / em_size;
488 vertex[1] = (fixed.y.value + (GLdouble)fixed.y.fract / (1 << 16)) / em_size;
492 static void tess_callback_vertex(GLvoid *vertex)
494 GLdouble *dbl = vertex;
495 TRACE("%f, %f, %f\n", dbl[0], dbl[1], dbl[2]);
499 static void tess_callback_begin(GLenum which)
501 TRACE("%d\n", which);
505 static void tess_callback_end(void)
511 /***********************************************************************
512 * wglUseFontOutlines_common
514 static BOOL wglUseFontOutlines_common(HDC hdc,
521 LPGLYPHMETRICSFLOAT lpgmf,
525 const MAT2 identity = {{0,1},{0,0},{0,0},{0,1}};
528 HFONT old_font, unscaled_font;
532 TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc, first, count,
533 listBase, deviation, extrusion, format, lpgmf, unicode ? "W" : "A");
537 ERR("libGLU is required for this function but isn't loaded\n");
542 tess = pgluNewTess();
545 pgluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex);
546 pgluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin);
547 pgluTessCallback(tess, GLU_TESS_END, tess_callback_end);
551 if(!tess) return FALSE;
553 GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf);
554 rc.left = rc.right = rc.bottom = 0;
556 DPtoLP(hdc, (POINT*)&rc, 2);
557 lf.lfHeight = -abs(rc.top - rc.bottom);
558 lf.lfOrientation = lf.lfEscapement = 0;
559 unscaled_font = CreateFontIndirectW(&lf);
560 old_font = SelectObject(hdc, unscaled_font);
562 for (glyph = first; glyph < first + count; glyph++)
567 TTPOLYGONHEADER *pph;
572 needed = GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
574 needed = GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
576 if(needed == GDI_ERROR)
579 buf = HeapAlloc(GetProcessHeap(), 0, needed);
580 vertices = HeapAlloc(GetProcessHeap(), 0, needed / sizeof(POINTFX) * 3 * sizeof(GLdouble));
583 GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
585 GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
587 TRACE("glyph %d\n", glyph);
591 lpgmf->gmfBlackBoxX = (float)gm.gmBlackBoxX / em_size;
592 lpgmf->gmfBlackBoxY = (float)gm.gmBlackBoxY / em_size;
593 lpgmf->gmfptGlyphOrigin.x = (float)gm.gmptGlyphOrigin.x / em_size;
594 lpgmf->gmfptGlyphOrigin.y = (float)gm.gmptGlyphOrigin.y / em_size;
595 lpgmf->gmfCellIncX = (float)gm.gmCellIncX / em_size;
596 lpgmf->gmfCellIncY = (float)gm.gmCellIncY / em_size;
598 TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf->gmfBlackBoxX, lpgmf->gmfBlackBoxY,
599 lpgmf->gmfptGlyphOrigin.x, lpgmf->gmfptGlyphOrigin.y, lpgmf->gmfCellIncX, lpgmf->gmfCellIncY);
604 glNewList(listBase++, GL_COMPILE);
605 pgluTessBeginPolygon(tess, NULL);
607 pph = (TTPOLYGONHEADER*)buf;
608 while((BYTE*)pph < buf + needed)
610 TRACE("\tstart %d, %d\n", pph->pfxStart.x.value, pph->pfxStart.y.value);
612 pgluTessBeginContour(tess);
614 fixed_to_double(pph->pfxStart, em_size, vertices);
615 pgluTessVertex(tess, vertices, vertices);
618 ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
619 while((char*)ppc < (char*)pph + pph->cb)
625 for(i = 0; i < ppc->cpfx; i++)
627 TRACE("\t\tline to %d, %d\n", ppc->apfx[i].x.value, ppc->apfx[i].y.value);
628 fixed_to_double(ppc->apfx[i], em_size, vertices);
629 pgluTessVertex(tess, vertices, vertices);
634 case TT_PRIM_QSPLINE:
635 for(i = 0; i < ppc->cpfx/2; i++)
637 /* FIXME just connecting the control points for now */
638 TRACE("\t\tcurve %d,%d %d,%d\n",
639 ppc->apfx[i * 2].x.value, ppc->apfx[i * 3].y.value,
640 ppc->apfx[i * 2 + 1].x.value, ppc->apfx[i * 3 + 1].y.value);
641 fixed_to_double(ppc->apfx[i * 2], em_size, vertices);
642 pgluTessVertex(tess, vertices, vertices);
644 fixed_to_double(ppc->apfx[i * 2 + 1], em_size, vertices);
645 pgluTessVertex(tess, vertices, vertices);
650 ERR("\t\tcurve type = %d\n", ppc->wType);
651 pgluTessEndContour(tess);
655 ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
656 (ppc->cpfx - 1) * sizeof(POINTFX));
658 pgluTessEndContour(tess);
659 pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
663 pgluTessEndPolygon(tess);
664 glTranslated((GLdouble)gm.gmCellIncX / em_size, (GLdouble)gm.gmCellIncY / em_size, 0.0);
667 HeapFree(GetProcessHeap(), 0, buf);
668 HeapFree(GetProcessHeap(), 0, vertices);
672 DeleteObject(SelectObject(hdc, old_font));
673 pgluDeleteTess(tess);
678 #else /* SONAME_LIBGLU */
680 static BOOL wglUseFontOutlines_common(HDC hdc,
687 LPGLYPHMETRICSFLOAT lpgmf,
690 FIXME("Unable to compile in wglUseFontOutlines support without GL/glu.h\n");
694 #endif /* SONAME_LIBGLU */
696 /***********************************************************************
697 * wglUseFontOutlinesA (OPENGL32.@)
699 BOOL WINAPI wglUseFontOutlinesA(HDC hdc,
706 LPGLYPHMETRICSFLOAT lpgmf)
708 return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, FALSE);
711 /***********************************************************************
712 * wglUseFontOutlinesW (OPENGL32.@)
714 BOOL WINAPI wglUseFontOutlinesW(HDC hdc,
721 LPGLYPHMETRICSFLOAT lpgmf)
723 return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, TRUE);
726 /***********************************************************************
727 * glFinish (OPENGL32.@)
729 void WINAPI wine_glFinish( void )
732 wine_wgl.p_wglFinish();
735 /***********************************************************************
736 * glFlush (OPENGL32.@)
738 void WINAPI wine_glFlush( void )
741 wine_wgl.p_wglFlush();
744 /***********************************************************************
745 * glGetString (OPENGL32.@)
747 const GLubyte * WINAPI wine_glGetString( GLenum name )
750 const char* GL_Extensions = NULL;
752 /* this is for buggy nvidia driver, crashing if called from a different
753 thread with no context */
754 if(wglGetCurrentContext() == NULL)
757 if (GL_EXTENSIONS != name) {
759 ret = glGetString(name);
764 if (NULL == internal_gl_extensions) {
766 GL_Extensions = (const char *) glGetString(GL_EXTENSIONS);
770 size_t len = strlen(GL_Extensions);
771 internal_gl_extensions = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len + 2);
773 TRACE("GL_EXTENSIONS reported:\n");
774 while (*GL_Extensions != 0x00) {
775 const char* Start = GL_Extensions;
778 while (*GL_Extensions != ' ' && *GL_Extensions != 0x00) {
781 memcpy(ThisExtn, Start, (GL_Extensions - Start));
782 ThisExtn[GL_Extensions - Start] = 0;
783 TRACE("- %s:", ThisExtn);
785 /* test if supported API is disabled by config */
786 if (!internal_gl_disabled_extensions || !strstr(internal_gl_disabled_extensions, ThisExtn)) {
787 strcat(internal_gl_extensions, " ");
788 strcat(internal_gl_extensions, ThisExtn);
791 TRACE(" deactived (by config)\n");
794 if (*GL_Extensions == ' ') GL_Extensions++;
799 return (const GLubyte *) internal_gl_extensions;
802 /***********************************************************************
803 * glGetIntegerv (OPENGL32.@)
805 void WINAPI wine_glGetIntegerv( GLenum pname, GLint* params )
807 wine_wgl.p_wglGetIntegerv(pname, params);
810 /***********************************************************************
811 * wglSwapBuffers (OPENGL32.@)
813 BOOL WINAPI DECLSPEC_HOTPATCH wglSwapBuffers( HDC hdc )
815 return SwapBuffers(hdc);
818 /* This is for brain-dead applications that use OpenGL functions before even
819 creating a rendering context.... */
820 static BOOL process_attach(void)
822 HMODULE mod_x11, mod_gdi32;
826 GetDesktopWindow(); /* make sure winex11 is loaded (FIXME) */
827 mod_x11 = GetModuleHandleA( "winex11.drv" );
828 mod_gdi32 = GetModuleHandleA( "gdi32.dll" );
830 if (!mod_x11 || !mod_gdi32)
832 ERR("X11DRV or GDI32 not loaded. Cannot create default context.\n");
836 wine_tsx11_lock_ptr = (void *)GetProcAddress( mod_x11, "wine_tsx11_lock" );
837 wine_tsx11_unlock_ptr = (void *)GetProcAddress( mod_x11, "wine_tsx11_unlock" );
839 wine_wgl.p_wglGetProcAddress = (void *)GetProcAddress(mod_gdi32, "wglGetProcAddress");
840 wine_wgl.p_SetPixelFormat = (void *)GetProcAddress(mod_gdi32, "SetPixelFormat");
841 wine_wgl.p_wglCopyContext = (void *)GetProcAddress(mod_gdi32, "wglCopyContext");
842 wine_wgl.p_wglDeleteContext = (void *)GetProcAddress(mod_gdi32, "wglDeleteContext");
843 wine_wgl.p_wglMakeCurrent = (void *)GetProcAddress(mod_gdi32, "wglMakeCurrent");
844 wine_wgl.p_wglShareLists = (void *)GetProcAddress(mod_gdi32, "wglShareLists");
845 wine_wgl.p_wglUseFontBitmapsA = (void *)GetProcAddress(mod_gdi32, "wglUseFontBitmapsA");
846 wine_wgl.p_wglUseFontBitmapsW = (void *)GetProcAddress(mod_gdi32, "wglUseFontBitmapsW");
847 wine_wgl.p_wglGetCurrentDC = (void *)GetProcAddress(mod_gdi32, "wglGetCurrentDC");
848 wine_wgl.p_wglCreateContext = (void *)GetProcAddress(mod_gdi32, "wglCreateContext");
849 wine_wgl.p_wglGetCurrentContext = (void *)GetProcAddress(mod_gdi32, "wglGetCurrentContext");
850 wine_wgl.p_ChoosePixelFormat = (void *)GetProcAddress(mod_gdi32, "ChoosePixelFormat");
851 wine_wgl.p_DescribePixelFormat = (void *)GetProcAddress(mod_gdi32, "DescribePixelFormat");
852 wine_wgl.p_GetPixelFormat = (void *)GetProcAddress(mod_gdi32, "GetPixelFormat");
854 /* Interal WGL function */
855 wine_wgl.p_wglGetIntegerv = (void *)wine_wgl.p_wglGetProcAddress("wglGetIntegerv");
856 wine_wgl.p_wglFinish = (void *)wine_wgl.p_wglGetProcAddress("wglFinish");
857 wine_wgl.p_wglFlush = (void *)wine_wgl.p_wglGetProcAddress("wglFlush");
859 if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\OpenGL", &hkey)) {
860 if (!RegQueryValueExA( hkey, "DisabledExtensions", 0, NULL, NULL, &size)) {
861 internal_gl_disabled_extensions = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
862 RegQueryValueExA( hkey, "DisabledExtensions", 0, NULL, (LPBYTE)internal_gl_disabled_extensions, &size);
863 TRACE("found DisabledExtensions=%s\n", debugstr_a(internal_gl_disabled_extensions));
872 /**********************************************************************/
874 static void process_detach(void)
876 if (libglu_handle) wine_dlclose(libglu_handle, NULL, 0);
877 HeapFree(GetProcessHeap(), 0, internal_gl_extensions);
878 HeapFree(GetProcessHeap(), 0, internal_gl_disabled_extensions);
881 /***********************************************************************
882 * OpenGL initialisation routine
884 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
888 case DLL_PROCESS_ATTACH:
889 opengl32_handle = hinst;
890 DisableThreadLibraryCalls(hinst);
891 return process_attach();
892 case DLL_PROCESS_DETACH: