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_wglMakeCurrent)(HDC hdc, HGLRC hglrc);
52 HGLRC (WINAPI *p_wglCreateContext)(HDC hdc);
53 INT (WINAPI *p_GetPixelFormat)(HDC hdc);
55 /* internal WGL functions */
56 BOOL (WINAPI *p_wglCopyContext)(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask);
57 BOOL (WINAPI *p_wglDeleteContext)(HGLRC hglrc);
58 void (WINAPI *p_wglFinish)(void);
59 void (WINAPI *p_wglFlush)(void);
60 HGLRC (WINAPI *p_wglGetCurrentContext)(void);
61 HDC (WINAPI *p_wglGetCurrentDC)(void);
62 void (WINAPI *p_wglGetIntegerv)(GLenum pname, GLint* params);
63 BOOL (WINAPI *p_wglShareLists)(HGLRC hglrc1, HGLRC hglrc2);
67 #define MAKE_FUNCPTR(f) static typeof(f) * p##f;
68 MAKE_FUNCPTR(gluNewTess)
69 MAKE_FUNCPTR(gluDeleteTess)
70 MAKE_FUNCPTR(gluTessBeginContour)
71 MAKE_FUNCPTR(gluTessBeginPolygon)
72 MAKE_FUNCPTR(gluTessCallback)
73 MAKE_FUNCPTR(gluTessEndContour)
74 MAKE_FUNCPTR(gluTessEndPolygon)
75 MAKE_FUNCPTR(gluTessVertex)
77 #endif /* SONAME_LIBGLU */
79 void (*wine_tsx11_lock_ptr)(void) = NULL;
80 void (*wine_tsx11_unlock_ptr)(void) = NULL;
82 static HMODULE opengl32_handle;
83 static void* libglu_handle = NULL;
85 static char* internal_gl_disabled_extensions = NULL;
86 static char* internal_gl_extensions = NULL;
88 const GLubyte * WINAPI wine_glGetString( GLenum name );
90 /* internal GDI functions */
91 extern INT WINAPI GdiDescribePixelFormat( HDC hdc, INT fmt, UINT size, PIXELFORMATDESCRIPTOR *pfd );
92 extern BOOL WINAPI GdiSetPixelFormat( HDC hdc, INT fmt, const PIXELFORMATDESCRIPTOR *pfd );
93 extern BOOL WINAPI GdiSwapBuffers( HDC hdc );
95 /***********************************************************************
96 * wglSetPixelFormat(OPENGL32.@)
98 BOOL WINAPI wglSetPixelFormat( HDC hdc, INT iPixelFormat,
99 const PIXELFORMATDESCRIPTOR *ppfd)
101 return GdiSetPixelFormat(hdc, iPixelFormat, ppfd);
104 /***********************************************************************
105 * wglCopyContext (OPENGL32.@)
107 BOOL WINAPI wglCopyContext(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask)
109 if (!hglrcSrc || !hglrcDst)
111 SetLastError(ERROR_INVALID_HANDLE);
114 return wine_wgl.p_wglCopyContext(hglrcSrc, hglrcDst, mask);
117 /***********************************************************************
118 * wglDeleteContext (OPENGL32.@)
120 BOOL WINAPI wglDeleteContext(HGLRC hglrc)
124 SetLastError(ERROR_INVALID_HANDLE);
127 return wine_wgl.p_wglDeleteContext(hglrc);
130 /***********************************************************************
131 * wglMakeCurrent (OPENGL32.@)
133 BOOL WINAPI wglMakeCurrent(HDC hdc, HGLRC hglrc)
135 return wine_wgl.p_wglMakeCurrent(hdc, hglrc);
138 /***********************************************************************
139 * wglShareLists (OPENGL32.@)
141 BOOL WINAPI wglShareLists(HGLRC hglrc1, HGLRC hglrc2)
143 if (!hglrc1 || !hglrc2)
145 SetLastError(ERROR_INVALID_HANDLE);
148 return wine_wgl.p_wglShareLists(hglrc1, hglrc2);
151 /***********************************************************************
152 * wglGetCurrentDC (OPENGL32.@)
154 HDC WINAPI wglGetCurrentDC(void)
156 return wine_wgl.p_wglGetCurrentDC();
159 /***********************************************************************
160 * wglCreateContext (OPENGL32.@)
162 HGLRC WINAPI wglCreateContext(HDC hdc)
164 return wine_wgl.p_wglCreateContext(hdc);
167 /***********************************************************************
168 * wglGetCurrentContext (OPENGL32.@)
170 HGLRC WINAPI wglGetCurrentContext(void)
172 return wine_wgl.p_wglGetCurrentContext();
175 /***********************************************************************
176 * wglChoosePixelFormat (OPENGL32.@)
178 INT WINAPI wglChoosePixelFormat(HDC hdc, const PIXELFORMATDESCRIPTOR* ppfd)
180 PIXELFORMATDESCRIPTOR format, best;
181 int i, count, best_format;
182 int bestDBuffer = -1, bestStereo = -1;
184 TRACE_(wgl)( "%p %p: size %u version %u flags %u type %u color %u %u,%u,%u,%u "
185 "accum %u depth %u stencil %u aux %u\n",
186 hdc, ppfd, ppfd->nSize, ppfd->nVersion, ppfd->dwFlags, ppfd->iPixelType,
187 ppfd->cColorBits, ppfd->cRedBits, ppfd->cGreenBits, ppfd->cBlueBits, ppfd->cAlphaBits,
188 ppfd->cAccumBits, ppfd->cDepthBits, ppfd->cStencilBits, ppfd->cAuxBuffers );
190 count = GdiDescribePixelFormat( hdc, 0, 0, NULL );
191 if (!count) return 0;
195 best.cAlphaBits = -1;
196 best.cColorBits = -1;
197 best.cDepthBits = -1;
198 best.cStencilBits = -1;
199 best.cAuxBuffers = -1;
201 for (i = 1; i <= count; i++)
203 if (!GdiDescribePixelFormat( hdc, i, sizeof(format), &format )) continue;
205 if (ppfd->iPixelType != format.iPixelType)
207 TRACE( "pixel type mismatch for iPixelFormat=%d\n", i );
211 /* only use bitmap capable for formats for bitmap rendering */
212 if( (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) != (format.dwFlags & PFD_DRAW_TO_BITMAP))
214 TRACE( "PFD_DRAW_TO_BITMAP mismatch for iPixelFormat=%d\n", i );
218 /* The behavior of PDF_STEREO/PFD_STEREO_DONTCARE and PFD_DOUBLEBUFFER / PFD_DOUBLEBUFFER_DONTCARE
219 * is not very clear on MSDN. They specify that ChoosePixelFormat tries to match pixel formats
220 * with the flag (PFD_STEREO / PFD_DOUBLEBUFFERING) set. Otherwise it says that it tries to match
221 * formats without the given flag set.
222 * A test on Windows using a Radeon 9500pro on WinXP (the driver doesn't support Stereo)
223 * has indicated that a format without stereo is returned when stereo is unavailable.
224 * So in case PFD_STEREO is set, formats that support it should have priority above formats
225 * without. In case PFD_STEREO_DONTCARE is set, stereo is ignored.
227 * To summarize the following is most likely the correct behavior:
228 * stereo not set -> prefer no-stereo formats, else also accept stereo formats
229 * stereo set -> prefer stereo formats, else also accept no-stereo formats
230 * stereo don't care -> it doesn't matter whether we get stereo or not
232 * In Wine we will treat no-stereo the same way as don't care because it makes
233 * format selection even more complicated and second drivers with Stereo advertise
234 * each format twice anyway.
237 /* Doublebuffer, see the comments above */
238 if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE))
240 if (((ppfd->dwFlags & PFD_DOUBLEBUFFER) != bestDBuffer) &&
241 ((format.dwFlags & PFD_DOUBLEBUFFER) == (ppfd->dwFlags & PFD_DOUBLEBUFFER)))
244 if (bestDBuffer != -1 && (format.dwFlags & PFD_DOUBLEBUFFER) != bestDBuffer) continue;
247 /* Stereo, see the comments above. */
248 if (!(ppfd->dwFlags & PFD_STEREO_DONTCARE))
250 if (((ppfd->dwFlags & PFD_STEREO) != bestStereo) &&
251 ((format.dwFlags & PFD_STEREO) == (ppfd->dwFlags & PFD_STEREO)))
254 if (bestStereo != -1 && (format.dwFlags & PFD_STEREO) != bestStereo) continue;
257 /* Below we will do a number of checks to select the 'best' pixelformat.
258 * We assume the precedence cColorBits > cAlphaBits > cDepthBits > cStencilBits -> cAuxBuffers.
259 * The code works by trying to match the most important options as close as possible.
260 * When a reasonable format is found, we will try to match more options.
261 * It appears (see the opengl32 test) that Windows opengl drivers ignore options
262 * like cColorBits, cAlphaBits and friends if they are set to 0, so they are considered
263 * as DONTCARE. At least Serious Sam TSE relies on this behavior. */
265 if (ppfd->cColorBits)
267 if (((ppfd->cColorBits > best.cColorBits) && (format.cColorBits > best.cColorBits)) ||
268 ((format.cColorBits >= ppfd->cColorBits) && (format.cColorBits < best.cColorBits)))
271 if (best.cColorBits != format.cColorBits) /* Do further checks if the format is compatible */
273 TRACE( "color mismatch for iPixelFormat=%d\n", i );
277 if (ppfd->cAlphaBits)
279 if (((ppfd->cAlphaBits > best.cAlphaBits) && (format.cAlphaBits > best.cAlphaBits)) ||
280 ((format.cAlphaBits >= ppfd->cAlphaBits) && (format.cAlphaBits < best.cAlphaBits)))
283 if (best.cAlphaBits != format.cAlphaBits)
285 TRACE( "alpha mismatch for iPixelFormat=%d\n", i );
289 if (ppfd->cDepthBits)
291 if (((ppfd->cDepthBits > best.cDepthBits) && (format.cDepthBits > best.cDepthBits)) ||
292 ((format.cDepthBits >= ppfd->cDepthBits) && (format.cDepthBits < best.cDepthBits)))
295 if (best.cDepthBits != format.cDepthBits)
297 TRACE( "depth mismatch for iPixelFormat=%d\n", i );
301 if (ppfd->cStencilBits)
303 if (((ppfd->cStencilBits > best.cStencilBits) && (format.cStencilBits > best.cStencilBits)) ||
304 ((format.cStencilBits >= ppfd->cStencilBits) && (format.cStencilBits < best.cStencilBits)))
307 if (best.cStencilBits != format.cStencilBits)
309 TRACE( "stencil mismatch for iPixelFormat=%d\n", i );
313 if (ppfd->cAuxBuffers)
315 if (((ppfd->cAuxBuffers > best.cAuxBuffers) && (format.cAuxBuffers > best.cAuxBuffers)) ||
316 ((format.cAuxBuffers >= ppfd->cAuxBuffers) && (format.cAuxBuffers < best.cAuxBuffers)))
319 if (best.cAuxBuffers != format.cAuxBuffers)
321 TRACE( "aux mismatch for iPixelFormat=%d\n", i );
330 bestDBuffer = format.dwFlags & PFD_DOUBLEBUFFER;
331 bestStereo = format.dwFlags & PFD_STEREO;
334 TRACE( "returning %u\n", best_format );
338 /***********************************************************************
339 * wglDescribePixelFormat (OPENGL32.@)
341 INT WINAPI wglDescribePixelFormat(HDC hdc, INT iPixelFormat, UINT nBytes,
342 LPPIXELFORMATDESCRIPTOR ppfd)
344 return GdiDescribePixelFormat(hdc, iPixelFormat, nBytes, ppfd);
347 /***********************************************************************
348 * wglGetPixelFormat (OPENGL32.@)
350 INT WINAPI wglGetPixelFormat(HDC hdc)
352 return wine_wgl.p_GetPixelFormat(hdc);
355 /***********************************************************************
356 * wglCreateLayerContext (OPENGL32.@)
358 HGLRC WINAPI wglCreateLayerContext(HDC hdc,
360 TRACE("(%p,%d)\n", hdc, iLayerPlane);
362 if (iLayerPlane == 0) {
363 return wglCreateContext(hdc);
365 FIXME(" no handler for layer %d\n", iLayerPlane);
370 /***********************************************************************
371 * wglDescribeLayerPlane (OPENGL32.@)
373 BOOL WINAPI wglDescribeLayerPlane(HDC hdc,
377 LPLAYERPLANEDESCRIPTOR plpd) {
378 FIXME("(%p,%d,%d,%d,%p)\n", hdc, iPixelFormat, iLayerPlane, nBytes, plpd);
383 /***********************************************************************
384 * wglGetLayerPaletteEntries (OPENGL32.@)
386 int WINAPI wglGetLayerPaletteEntries(HDC hdc,
390 const COLORREF *pcr) {
391 FIXME("(): stub !\n");
396 static int compar(const void *elt_a, const void *elt_b) {
397 return strcmp(((const OpenGL_extension *) elt_a)->name,
398 ((const OpenGL_extension *) elt_b)->name);
401 /* Check if a GL extension is supported */
402 static BOOL is_extension_supported(const char* extension)
404 const char *gl_ext_string = (const char*)wine_glGetString(GL_EXTENSIONS);
406 TRACE("Checking for extension '%s'\n", extension);
409 ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
413 /* We use the GetProcAddress function from the display driver to retrieve function pointers
414 * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done
415 * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't
416 * require the function to return NULL when a extension isn't found. For this reason we check
417 * if the OpenGL extension required for the function we are looking up is supported. */
419 /* Check if the extension is part of the GL extension string to see if it is supported. */
420 if(strstr(gl_ext_string, extension) != NULL)
423 /* In general an OpenGL function starts as an ARB/EXT extension and at some stage
424 * it becomes part of the core OpenGL library and can be reached without the ARB/EXT
425 * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor.
426 * Check if we are searching for a core GL function */
427 if(strncmp(extension, "GL_VERSION_", 11) == 0)
429 const GLubyte *gl_version = glGetString(GL_VERSION);
430 const char *version = extension + 11; /* Move past 'GL_VERSION_' */
433 ERR("Error no OpenGL version found,\n");
437 /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function.
438 * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */
439 if( (gl_version[0] >= version[0]) || ((gl_version[0] == version[0]) && (gl_version[2] >= version[2])) ) {
442 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]);
448 /***********************************************************************
449 * wglGetProcAddress (OPENGL32.@)
451 PROC WINAPI wglGetProcAddress(LPCSTR lpszProc) {
453 OpenGL_extension ext;
454 const OpenGL_extension *ext_ret;
456 TRACE("(%s)\n", lpszProc);
458 if (lpszProc == NULL)
461 /* Without an active context opengl32 doesn't know to what
462 * driver it has to dispatch wglGetProcAddress.
464 if (wglGetCurrentContext() == NULL)
466 WARN("No active WGL context found\n");
470 /* First, look if it's not already defined in the 'standard' OpenGL functions */
471 if ((local_func = GetProcAddress(opengl32_handle, lpszProc)) != NULL) {
472 TRACE(" found function in 'standard' OpenGL functions (%p)\n", local_func);
476 /* After that, search in the thunks to find the real name of the extension */
478 ext_ret = bsearch(&ext, extension_registry, extension_registry_size,
479 sizeof(OpenGL_extension), compar);
481 /* If nothing was found, we are looking for a WGL extension or an unknown GL extension. */
482 if (ext_ret == NULL) {
483 /* If the function name starts with a w it is a WGL extension */
484 if(lpszProc[0] == 'w')
485 return wine_wgl.p_wglGetProcAddress(lpszProc);
487 /* We are dealing with an unknown GL extension. */
488 WARN("Extension '%s' not defined in opengl32.dll's function table!\n", lpszProc);
490 } else { /* We are looking for an OpenGL extension */
492 /* Check if the GL extension required by the function is available */
493 if(!is_extension_supported(ext_ret->extension)) {
494 WARN("Extension '%s' required by function '%s' not supported!\n", ext_ret->extension, lpszProc);
497 local_func = wine_wgl.p_wglGetProcAddress(ext_ret->name);
499 /* After that, look at the extensions defined in the Linux OpenGL library */
500 if (local_func == NULL) {
504 /* Remove the 3 last letters (EXT, ARB, ...).
506 I know that some extensions have more than 3 letters (MESA, NV,
507 INTEL, ...), but this is only a stop-gap measure to fix buggy
508 OpenGL drivers (moreover, it is only useful for old 1.0 apps
509 that query the glBindTextureEXT extension).
511 memcpy(buf, ext_ret->name, strlen(ext_ret->name) - 3);
512 buf[strlen(ext_ret->name) - 3] = '\0';
513 TRACE(" extension not found in the Linux OpenGL library, checking against libGL bug with %s..\n", buf);
515 ret = GetProcAddress(opengl32_handle, buf);
517 TRACE(" found function in main OpenGL library (%p) !\n", ret);
519 WARN("Did not find function %s (%s) in your OpenGL library !\n", lpszProc, ext_ret->name);
524 TRACE(" returning function (%p)\n", ext_ret->func);
525 extension_funcs[ext_ret - extension_registry] = local_func;
527 return ext_ret->func;
532 /***********************************************************************
533 * wglRealizeLayerPalette (OPENGL32.@)
535 BOOL WINAPI wglRealizeLayerPalette(HDC hdc,
543 /***********************************************************************
544 * wglSetLayerPaletteEntries (OPENGL32.@)
546 int WINAPI wglSetLayerPaletteEntries(HDC hdc,
550 const COLORREF *pcr) {
551 FIXME("(): stub !\n");
556 /***********************************************************************
557 * wglSwapLayerBuffers (OPENGL32.@)
559 BOOL WINAPI wglSwapLayerBuffers(HDC hdc,
561 TRACE_(opengl)("(%p, %08x)\n", hdc, fuPlanes);
563 if (fuPlanes & WGL_SWAP_MAIN_PLANE) {
564 if (!GdiSwapBuffers(hdc)) return FALSE;
565 fuPlanes &= ~WGL_SWAP_MAIN_PLANE;
569 WARN("Following layers unhandled : %08x\n", fuPlanes);
575 /***********************************************************************
576 * wglUseFontBitmaps_common
578 static BOOL wglUseFontBitmaps_common( HDC hdc, DWORD first, DWORD count, DWORD listBase, BOOL unicode )
581 unsigned int glyph, size = 0;
582 void *bitmap = NULL, *gl_bitmap = NULL;
587 glGetIntegerv(GL_UNPACK_ALIGNMENT, &org_alignment);
588 glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
591 for (glyph = first; glyph < first + count; glyph++) {
592 static const MAT2 identity = { {0,1},{0,0},{0,0},{0,1} };
593 unsigned int needed_size, height, width, width_int;
596 needed_size = GetGlyphOutlineW(hdc, glyph, GGO_BITMAP, &gm, 0, NULL, &identity);
598 needed_size = GetGlyphOutlineA(hdc, glyph, GGO_BITMAP, &gm, 0, NULL, &identity);
600 TRACE("Glyph : %3d / List : %d size %d\n", glyph, listBase, needed_size);
601 if (needed_size == GDI_ERROR) {
606 if (needed_size > size) {
608 HeapFree(GetProcessHeap(), 0, bitmap);
609 HeapFree(GetProcessHeap(), 0, gl_bitmap);
610 bitmap = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
611 gl_bitmap = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
614 ret = (GetGlyphOutlineW(hdc, glyph, GGO_BITMAP, &gm, size, bitmap, &identity) != GDI_ERROR);
616 ret = (GetGlyphOutlineA(hdc, glyph, GGO_BITMAP, &gm, size, bitmap, &identity) != GDI_ERROR);
620 unsigned int bitmask;
621 unsigned char *bitmap_ = bitmap;
623 TRACE(" - bbox : %d x %d\n", gm.gmBlackBoxX, gm.gmBlackBoxY);
624 TRACE(" - origin : (%d , %d)\n", gm.gmptGlyphOrigin.x, gm.gmptGlyphOrigin.y);
625 TRACE(" - increment : %d - %d\n", gm.gmCellIncX, gm.gmCellIncY);
626 if (needed_size != 0) {
627 TRACE(" - bitmap :\n");
628 for (height = 0; height < gm.gmBlackBoxY; height++) {
630 for (width = 0, bitmask = 0x80; width < gm.gmBlackBoxX; width++, bitmask >>= 1) {
635 if (*bitmap_ & bitmask)
640 bitmap_ += (4 - ((UINT_PTR)bitmap_ & 0x03));
646 /* In OpenGL, the bitmap is drawn from the bottom to the top... So we need to invert the
647 * glyph for it to be drawn properly.
649 if (needed_size != 0) {
650 width_int = (gm.gmBlackBoxX + 31) / 32;
651 for (height = 0; height < gm.gmBlackBoxY; height++) {
652 for (width = 0; width < width_int; width++) {
653 ((int *) gl_bitmap)[(gm.gmBlackBoxY - height - 1) * width_int + width] =
654 ((int *) bitmap)[height * width_int + width];
660 glNewList(listBase++, GL_COMPILE);
661 if (needed_size != 0) {
662 glBitmap(gm.gmBlackBoxX, gm.gmBlackBoxY,
663 0 - gm.gmptGlyphOrigin.x, (int) gm.gmBlackBoxY - gm.gmptGlyphOrigin.y,
664 gm.gmCellIncX, gm.gmCellIncY,
667 /* This is the case of 'empty' glyphs like the space character */
668 glBitmap(0, 0, 0, 0, gm.gmCellIncX, gm.gmCellIncY, NULL);
675 glPixelStorei(GL_UNPACK_ALIGNMENT, org_alignment);
677 HeapFree(GetProcessHeap(), 0, bitmap);
678 HeapFree(GetProcessHeap(), 0, gl_bitmap);
682 /***********************************************************************
683 * wglUseFontBitmapsA (OPENGL32.@)
685 BOOL WINAPI wglUseFontBitmapsA(HDC hdc, DWORD first, DWORD count, DWORD listBase)
687 return wglUseFontBitmaps_common( hdc, first, count, listBase, FALSE );
690 /***********************************************************************
691 * wglUseFontBitmapsW (OPENGL32.@)
693 BOOL WINAPI wglUseFontBitmapsW(HDC hdc, DWORD first, DWORD count, DWORD listBase)
695 return wglUseFontBitmaps_common( hdc, first, count, listBase, TRUE );
700 static void *load_libglu(void)
702 static int already_loaded;
705 if (already_loaded) return libglu_handle;
708 TRACE("Trying to load GLU library: %s\n", SONAME_LIBGLU);
709 handle = wine_dlopen(SONAME_LIBGLU, RTLD_NOW, NULL, 0);
712 WARN("Failed to load %s\n", SONAME_LIBGLU);
716 #define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(handle, #f, NULL, 0)) == NULL) goto sym_not_found;
717 LOAD_FUNCPTR(gluNewTess)
718 LOAD_FUNCPTR(gluDeleteTess)
719 LOAD_FUNCPTR(gluTessBeginContour)
720 LOAD_FUNCPTR(gluTessBeginPolygon)
721 LOAD_FUNCPTR(gluTessCallback)
722 LOAD_FUNCPTR(gluTessEndContour)
723 LOAD_FUNCPTR(gluTessEndPolygon)
724 LOAD_FUNCPTR(gluTessVertex)
726 libglu_handle = handle;
730 WARN("Unable to load function ptrs from libGLU\n");
731 /* Close the library as we won't use it */
732 wine_dlclose(handle, NULL, 0);
736 static void fixed_to_double(POINTFX fixed, UINT em_size, GLdouble vertex[3])
738 vertex[0] = (fixed.x.value + (GLdouble)fixed.x.fract / (1 << 16)) / em_size;
739 vertex[1] = (fixed.y.value + (GLdouble)fixed.y.fract / (1 << 16)) / em_size;
743 static void tess_callback_vertex(GLvoid *vertex)
745 GLdouble *dbl = vertex;
746 TRACE("%f, %f, %f\n", dbl[0], dbl[1], dbl[2]);
750 static void tess_callback_begin(GLenum which)
752 TRACE("%d\n", which);
756 static void tess_callback_end(void)
762 /***********************************************************************
763 * wglUseFontOutlines_common
765 static BOOL wglUseFontOutlines_common(HDC hdc,
772 LPGLYPHMETRICSFLOAT lpgmf,
776 const MAT2 identity = {{0,1},{0,0},{0,0},{0,1}};
779 HFONT old_font, unscaled_font;
783 TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc, first, count,
784 listBase, deviation, extrusion, format, lpgmf, unicode ? "W" : "A");
788 ERR("libGLU is required for this function but isn't loaded\n");
793 tess = pgluNewTess();
796 pgluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex);
797 pgluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin);
798 pgluTessCallback(tess, GLU_TESS_END, tess_callback_end);
802 if(!tess) return FALSE;
804 GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf);
805 rc.left = rc.right = rc.bottom = 0;
807 DPtoLP(hdc, (POINT*)&rc, 2);
808 lf.lfHeight = -abs(rc.top - rc.bottom);
809 lf.lfOrientation = lf.lfEscapement = 0;
810 unscaled_font = CreateFontIndirectW(&lf);
811 old_font = SelectObject(hdc, unscaled_font);
813 for (glyph = first; glyph < first + count; glyph++)
818 TTPOLYGONHEADER *pph;
823 needed = GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
825 needed = GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
827 if(needed == GDI_ERROR)
830 buf = HeapAlloc(GetProcessHeap(), 0, needed);
831 vertices = HeapAlloc(GetProcessHeap(), 0, needed / sizeof(POINTFX) * 3 * sizeof(GLdouble));
834 GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
836 GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
838 TRACE("glyph %d\n", glyph);
842 lpgmf->gmfBlackBoxX = (float)gm.gmBlackBoxX / em_size;
843 lpgmf->gmfBlackBoxY = (float)gm.gmBlackBoxY / em_size;
844 lpgmf->gmfptGlyphOrigin.x = (float)gm.gmptGlyphOrigin.x / em_size;
845 lpgmf->gmfptGlyphOrigin.y = (float)gm.gmptGlyphOrigin.y / em_size;
846 lpgmf->gmfCellIncX = (float)gm.gmCellIncX / em_size;
847 lpgmf->gmfCellIncY = (float)gm.gmCellIncY / em_size;
849 TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf->gmfBlackBoxX, lpgmf->gmfBlackBoxY,
850 lpgmf->gmfptGlyphOrigin.x, lpgmf->gmfptGlyphOrigin.y, lpgmf->gmfCellIncX, lpgmf->gmfCellIncY);
855 glNewList(listBase++, GL_COMPILE);
856 pgluTessBeginPolygon(tess, NULL);
858 pph = (TTPOLYGONHEADER*)buf;
859 while((BYTE*)pph < buf + needed)
861 TRACE("\tstart %d, %d\n", pph->pfxStart.x.value, pph->pfxStart.y.value);
863 pgluTessBeginContour(tess);
865 fixed_to_double(pph->pfxStart, em_size, vertices);
866 pgluTessVertex(tess, vertices, vertices);
869 ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
870 while((char*)ppc < (char*)pph + pph->cb)
876 for(i = 0; i < ppc->cpfx; i++)
878 TRACE("\t\tline to %d, %d\n", ppc->apfx[i].x.value, ppc->apfx[i].y.value);
879 fixed_to_double(ppc->apfx[i], em_size, vertices);
880 pgluTessVertex(tess, vertices, vertices);
885 case TT_PRIM_QSPLINE:
886 for(i = 0; i < ppc->cpfx/2; i++)
888 /* FIXME just connecting the control points for now */
889 TRACE("\t\tcurve %d,%d %d,%d\n",
890 ppc->apfx[i * 2].x.value, ppc->apfx[i * 3].y.value,
891 ppc->apfx[i * 2 + 1].x.value, ppc->apfx[i * 3 + 1].y.value);
892 fixed_to_double(ppc->apfx[i * 2], em_size, vertices);
893 pgluTessVertex(tess, vertices, vertices);
895 fixed_to_double(ppc->apfx[i * 2 + 1], em_size, vertices);
896 pgluTessVertex(tess, vertices, vertices);
901 ERR("\t\tcurve type = %d\n", ppc->wType);
902 pgluTessEndContour(tess);
906 ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
907 (ppc->cpfx - 1) * sizeof(POINTFX));
909 pgluTessEndContour(tess);
910 pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
914 pgluTessEndPolygon(tess);
915 glTranslated((GLdouble)gm.gmCellIncX / em_size, (GLdouble)gm.gmCellIncY / em_size, 0.0);
918 HeapFree(GetProcessHeap(), 0, buf);
919 HeapFree(GetProcessHeap(), 0, vertices);
923 DeleteObject(SelectObject(hdc, old_font));
924 pgluDeleteTess(tess);
929 #else /* SONAME_LIBGLU */
931 static BOOL wglUseFontOutlines_common(HDC hdc,
938 LPGLYPHMETRICSFLOAT lpgmf,
941 FIXME("Unable to compile in wglUseFontOutlines support without GL/glu.h\n");
945 #endif /* SONAME_LIBGLU */
947 /***********************************************************************
948 * wglUseFontOutlinesA (OPENGL32.@)
950 BOOL WINAPI wglUseFontOutlinesA(HDC hdc,
957 LPGLYPHMETRICSFLOAT lpgmf)
959 return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, FALSE);
962 /***********************************************************************
963 * wglUseFontOutlinesW (OPENGL32.@)
965 BOOL WINAPI wglUseFontOutlinesW(HDC hdc,
972 LPGLYPHMETRICSFLOAT lpgmf)
974 return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, TRUE);
977 /***********************************************************************
978 * glFinish (OPENGL32.@)
980 void WINAPI wine_glFinish( void )
983 wine_wgl.p_wglFinish();
986 /***********************************************************************
987 * glFlush (OPENGL32.@)
989 void WINAPI wine_glFlush( void )
992 wine_wgl.p_wglFlush();
995 /***********************************************************************
996 * glGetString (OPENGL32.@)
998 const GLubyte * WINAPI wine_glGetString( GLenum name )
1001 const char* GL_Extensions = NULL;
1003 /* this is for buggy nvidia driver, crashing if called from a different
1004 thread with no context */
1005 if(wglGetCurrentContext() == NULL)
1008 if (GL_EXTENSIONS != name) {
1010 ret = glGetString(name);
1015 if (NULL == internal_gl_extensions) {
1017 GL_Extensions = (const char *) glGetString(GL_EXTENSIONS);
1021 size_t len = strlen(GL_Extensions);
1022 internal_gl_extensions = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len + 2);
1024 TRACE("GL_EXTENSIONS reported:\n");
1025 while (*GL_Extensions != 0x00) {
1026 const char* Start = GL_Extensions;
1029 while (*GL_Extensions != ' ' && *GL_Extensions != 0x00) {
1032 memcpy(ThisExtn, Start, (GL_Extensions - Start));
1033 ThisExtn[GL_Extensions - Start] = 0;
1034 TRACE("- %s:", ThisExtn);
1036 /* test if supported API is disabled by config */
1037 if (!internal_gl_disabled_extensions || !strstr(internal_gl_disabled_extensions, ThisExtn)) {
1038 strcat(internal_gl_extensions, " ");
1039 strcat(internal_gl_extensions, ThisExtn);
1042 TRACE(" deactived (by config)\n");
1045 if (*GL_Extensions == ' ') GL_Extensions++;
1050 return (const GLubyte *) internal_gl_extensions;
1053 /***********************************************************************
1054 * glGetIntegerv (OPENGL32.@)
1056 void WINAPI wine_glGetIntegerv( GLenum pname, GLint* params )
1058 wine_wgl.p_wglGetIntegerv(pname, params);
1061 /***********************************************************************
1062 * wglSwapBuffers (OPENGL32.@)
1064 BOOL WINAPI DECLSPEC_HOTPATCH wglSwapBuffers( HDC hdc )
1066 return GdiSwapBuffers(hdc);
1069 /* This is for brain-dead applications that use OpenGL functions before even
1070 creating a rendering context.... */
1071 static BOOL process_attach(void)
1073 HMODULE mod_x11, mod_gdi32;
1077 GetDesktopWindow(); /* make sure winex11 is loaded (FIXME) */
1078 mod_x11 = GetModuleHandleA( "winex11.drv" );
1079 mod_gdi32 = GetModuleHandleA( "gdi32.dll" );
1081 if (!mod_x11 || !mod_gdi32)
1083 ERR("X11DRV or GDI32 not loaded. Cannot create default context.\n");
1087 wine_tsx11_lock_ptr = (void *)GetProcAddress( mod_x11, "wine_tsx11_lock" );
1088 wine_tsx11_unlock_ptr = (void *)GetProcAddress( mod_x11, "wine_tsx11_unlock" );
1090 wine_wgl.p_wglGetProcAddress = (void *)GetProcAddress(mod_gdi32, "wglGetProcAddress");
1091 wine_wgl.p_wglMakeCurrent = (void *)GetProcAddress(mod_gdi32, "wglMakeCurrent");
1092 wine_wgl.p_wglCreateContext = (void *)GetProcAddress(mod_gdi32, "wglCreateContext");
1093 wine_wgl.p_GetPixelFormat = (void *)GetProcAddress(mod_gdi32, "GetPixelFormat");
1095 /* internal WGL functions */
1096 wine_wgl.p_wglCopyContext = (void *)wine_wgl.p_wglGetProcAddress("wglCopyContext");
1097 wine_wgl.p_wglDeleteContext = (void *)wine_wgl.p_wglGetProcAddress("wglDeleteContext");
1098 wine_wgl.p_wglFinish = (void *)wine_wgl.p_wglGetProcAddress("wglFinish");
1099 wine_wgl.p_wglFlush = (void *)wine_wgl.p_wglGetProcAddress("wglFlush");
1100 wine_wgl.p_wglGetCurrentContext = (void *)wine_wgl.p_wglGetProcAddress("wglGetCurrentContext");
1101 wine_wgl.p_wglGetCurrentDC = (void *)wine_wgl.p_wglGetProcAddress("wglGetCurrentDC");
1102 wine_wgl.p_wglGetIntegerv = (void *)wine_wgl.p_wglGetProcAddress("wglGetIntegerv");
1103 wine_wgl.p_wglShareLists = (void *)wine_wgl.p_wglGetProcAddress("wglShareLists");
1105 if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\OpenGL", &hkey)) {
1106 if (!RegQueryValueExA( hkey, "DisabledExtensions", 0, NULL, NULL, &size)) {
1107 internal_gl_disabled_extensions = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
1108 RegQueryValueExA( hkey, "DisabledExtensions", 0, NULL, (LPBYTE)internal_gl_disabled_extensions, &size);
1109 TRACE("found DisabledExtensions=%s\n", debugstr_a(internal_gl_disabled_extensions));
1118 /**********************************************************************/
1120 static void process_detach(void)
1122 if (libglu_handle) wine_dlclose(libglu_handle, NULL, 0);
1123 HeapFree(GetProcessHeap(), 0, internal_gl_extensions);
1124 HeapFree(GetProcessHeap(), 0, internal_gl_disabled_extensions);
1127 /***********************************************************************
1128 * OpenGL initialisation routine
1130 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
1134 case DLL_PROCESS_ATTACH:
1135 opengl32_handle = hinst;
1136 DisableThreadLibraryCalls(hinst);
1137 return process_attach();
1138 case DLL_PROCESS_DETACH: