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 HGLRC (WINAPI *p_wglCreateContext)(HDC hdc);
52 INT (WINAPI *p_GetPixelFormat)(HDC hdc);
54 /* internal WGL functions */
55 BOOL (WINAPI *p_wglCopyContext)(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask);
56 BOOL (WINAPI *p_wglDeleteContext)(HGLRC hglrc);
57 void (WINAPI *p_wglFinish)(void);
58 void (WINAPI *p_wglFlush)(void);
59 HGLRC (WINAPI *p_wglGetCurrentContext)(void);
60 HDC (WINAPI *p_wglGetCurrentDC)(void);
61 void (WINAPI *p_wglGetIntegerv)(GLenum pname, GLint* params);
62 BOOL (WINAPI *p_wglMakeCurrent)(HDC hdc, HGLRC hglrc);
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 static HMODULE opengl32_handle;
80 static void* libglu_handle = NULL;
82 const GLubyte * WINAPI wine_glGetString( GLenum name );
84 /* internal GDI functions */
85 extern INT WINAPI GdiDescribePixelFormat( HDC hdc, INT fmt, UINT size, PIXELFORMATDESCRIPTOR *pfd );
86 extern BOOL WINAPI GdiSetPixelFormat( HDC hdc, INT fmt, const PIXELFORMATDESCRIPTOR *pfd );
87 extern BOOL WINAPI GdiSwapBuffers( HDC hdc );
89 /***********************************************************************
90 * wglSetPixelFormat(OPENGL32.@)
92 BOOL WINAPI wglSetPixelFormat( HDC hdc, INT iPixelFormat,
93 const PIXELFORMATDESCRIPTOR *ppfd)
95 return GdiSetPixelFormat(hdc, iPixelFormat, ppfd);
98 /***********************************************************************
99 * wglCopyContext (OPENGL32.@)
101 BOOL WINAPI wglCopyContext(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask)
103 if (!hglrcSrc || !hglrcDst)
105 SetLastError(ERROR_INVALID_HANDLE);
108 return wine_wgl.p_wglCopyContext(hglrcSrc, hglrcDst, mask);
111 /***********************************************************************
112 * wglDeleteContext (OPENGL32.@)
114 BOOL WINAPI wglDeleteContext(HGLRC hglrc)
118 SetLastError(ERROR_INVALID_HANDLE);
121 return wine_wgl.p_wglDeleteContext(hglrc);
124 /***********************************************************************
125 * wglMakeCurrent (OPENGL32.@)
127 BOOL WINAPI wglMakeCurrent(HDC hdc, HGLRC hglrc)
129 if (!hglrc && !hdc && !NtCurrentTeb()->glContext)
131 SetLastError( ERROR_INVALID_HANDLE );
134 return wine_wgl.p_wglMakeCurrent(hdc, hglrc);
137 /***********************************************************************
138 * wglShareLists (OPENGL32.@)
140 BOOL WINAPI wglShareLists(HGLRC hglrc1, HGLRC hglrc2)
142 if (!hglrc1 || !hglrc2)
144 SetLastError(ERROR_INVALID_HANDLE);
147 return wine_wgl.p_wglShareLists(hglrc1, hglrc2);
150 /***********************************************************************
151 * wglGetCurrentDC (OPENGL32.@)
153 HDC WINAPI wglGetCurrentDC(void)
155 return wine_wgl.p_wglGetCurrentDC();
158 /***********************************************************************
159 * wglCreateContext (OPENGL32.@)
161 HGLRC WINAPI wglCreateContext(HDC hdc)
163 return wine_wgl.p_wglCreateContext(hdc);
166 /***********************************************************************
167 * wglGetCurrentContext (OPENGL32.@)
169 HGLRC WINAPI wglGetCurrentContext(void)
171 return wine_wgl.p_wglGetCurrentContext();
174 /***********************************************************************
175 * wglChoosePixelFormat (OPENGL32.@)
177 INT WINAPI wglChoosePixelFormat(HDC hdc, const PIXELFORMATDESCRIPTOR* ppfd)
179 PIXELFORMATDESCRIPTOR format, best;
180 int i, count, best_format;
181 int bestDBuffer = -1, bestStereo = -1;
183 TRACE_(wgl)( "%p %p: size %u version %u flags %u type %u color %u %u,%u,%u,%u "
184 "accum %u depth %u stencil %u aux %u\n",
185 hdc, ppfd, ppfd->nSize, ppfd->nVersion, ppfd->dwFlags, ppfd->iPixelType,
186 ppfd->cColorBits, ppfd->cRedBits, ppfd->cGreenBits, ppfd->cBlueBits, ppfd->cAlphaBits,
187 ppfd->cAccumBits, ppfd->cDepthBits, ppfd->cStencilBits, ppfd->cAuxBuffers );
189 count = GdiDescribePixelFormat( hdc, 0, 0, NULL );
190 if (!count) return 0;
194 best.cAlphaBits = -1;
195 best.cColorBits = -1;
196 best.cDepthBits = -1;
197 best.cStencilBits = -1;
198 best.cAuxBuffers = -1;
200 for (i = 1; i <= count; i++)
202 if (!GdiDescribePixelFormat( hdc, i, sizeof(format), &format )) continue;
204 if (ppfd->iPixelType != format.iPixelType)
206 TRACE( "pixel type mismatch for iPixelFormat=%d\n", i );
210 /* only use bitmap capable for formats for bitmap rendering */
211 if( (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) != (format.dwFlags & PFD_DRAW_TO_BITMAP))
213 TRACE( "PFD_DRAW_TO_BITMAP mismatch for iPixelFormat=%d\n", i );
217 /* The behavior of PDF_STEREO/PFD_STEREO_DONTCARE and PFD_DOUBLEBUFFER / PFD_DOUBLEBUFFER_DONTCARE
218 * is not very clear on MSDN. They specify that ChoosePixelFormat tries to match pixel formats
219 * with the flag (PFD_STEREO / PFD_DOUBLEBUFFERING) set. Otherwise it says that it tries to match
220 * formats without the given flag set.
221 * A test on Windows using a Radeon 9500pro on WinXP (the driver doesn't support Stereo)
222 * has indicated that a format without stereo is returned when stereo is unavailable.
223 * So in case PFD_STEREO is set, formats that support it should have priority above formats
224 * without. In case PFD_STEREO_DONTCARE is set, stereo is ignored.
226 * To summarize the following is most likely the correct behavior:
227 * stereo not set -> prefer non-stereo formats, but also accept stereo formats
228 * stereo set -> prefer stereo formats, but also accept non-stereo formats
229 * stereo don't care -> it doesn't matter whether we get stereo or not
231 * In Wine we will treat non-stereo the same way as don't care because it makes
232 * format selection even more complicated and second drivers with Stereo advertise
233 * each format twice anyway.
236 /* Doublebuffer, see the comments above */
237 if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE))
239 if (((ppfd->dwFlags & PFD_DOUBLEBUFFER) != bestDBuffer) &&
240 ((format.dwFlags & PFD_DOUBLEBUFFER) == (ppfd->dwFlags & PFD_DOUBLEBUFFER)))
243 if (bestDBuffer != -1 && (format.dwFlags & PFD_DOUBLEBUFFER) != bestDBuffer) continue;
246 /* Stereo, see the comments above. */
247 if (!(ppfd->dwFlags & PFD_STEREO_DONTCARE))
249 if (((ppfd->dwFlags & PFD_STEREO) != bestStereo) &&
250 ((format.dwFlags & PFD_STEREO) == (ppfd->dwFlags & PFD_STEREO)))
253 if (bestStereo != -1 && (format.dwFlags & PFD_STEREO) != bestStereo) continue;
256 /* Below we will do a number of checks to select the 'best' pixelformat.
257 * We assume the precedence cColorBits > cAlphaBits > cDepthBits > cStencilBits -> cAuxBuffers.
258 * The code works by trying to match the most important options as close as possible.
259 * When a reasonable format is found, we will try to match more options.
260 * It appears (see the opengl32 test) that Windows opengl drivers ignore options
261 * like cColorBits, cAlphaBits and friends if they are set to 0, so they are considered
262 * as DONTCARE. At least Serious Sam TSE relies on this behavior. */
264 if (ppfd->cColorBits)
266 if (((ppfd->cColorBits > best.cColorBits) && (format.cColorBits > best.cColorBits)) ||
267 ((format.cColorBits >= ppfd->cColorBits) && (format.cColorBits < best.cColorBits)))
270 if (best.cColorBits != format.cColorBits) /* Do further checks if the format is compatible */
272 TRACE( "color mismatch for iPixelFormat=%d\n", i );
276 if (ppfd->cAlphaBits)
278 if (((ppfd->cAlphaBits > best.cAlphaBits) && (format.cAlphaBits > best.cAlphaBits)) ||
279 ((format.cAlphaBits >= ppfd->cAlphaBits) && (format.cAlphaBits < best.cAlphaBits)))
282 if (best.cAlphaBits != format.cAlphaBits)
284 TRACE( "alpha mismatch for iPixelFormat=%d\n", i );
288 if (ppfd->cDepthBits)
290 if (((ppfd->cDepthBits > best.cDepthBits) && (format.cDepthBits > best.cDepthBits)) ||
291 ((format.cDepthBits >= ppfd->cDepthBits) && (format.cDepthBits < best.cDepthBits)))
294 if (best.cDepthBits != format.cDepthBits)
296 TRACE( "depth mismatch for iPixelFormat=%d\n", i );
300 if (ppfd->cStencilBits)
302 if (((ppfd->cStencilBits > best.cStencilBits) && (format.cStencilBits > best.cStencilBits)) ||
303 ((format.cStencilBits >= ppfd->cStencilBits) && (format.cStencilBits < best.cStencilBits)))
306 if (best.cStencilBits != format.cStencilBits)
308 TRACE( "stencil mismatch for iPixelFormat=%d\n", i );
312 if (ppfd->cAuxBuffers)
314 if (((ppfd->cAuxBuffers > best.cAuxBuffers) && (format.cAuxBuffers > best.cAuxBuffers)) ||
315 ((format.cAuxBuffers >= ppfd->cAuxBuffers) && (format.cAuxBuffers < best.cAuxBuffers)))
318 if (best.cAuxBuffers != format.cAuxBuffers)
320 TRACE( "aux mismatch for iPixelFormat=%d\n", i );
329 bestDBuffer = format.dwFlags & PFD_DOUBLEBUFFER;
330 bestStereo = format.dwFlags & PFD_STEREO;
333 TRACE( "returning %u\n", best_format );
337 /***********************************************************************
338 * wglDescribePixelFormat (OPENGL32.@)
340 INT WINAPI wglDescribePixelFormat(HDC hdc, INT iPixelFormat, UINT nBytes,
341 LPPIXELFORMATDESCRIPTOR ppfd)
343 return GdiDescribePixelFormat(hdc, iPixelFormat, nBytes, ppfd);
346 /***********************************************************************
347 * wglGetPixelFormat (OPENGL32.@)
349 INT WINAPI wglGetPixelFormat(HDC hdc)
351 return wine_wgl.p_GetPixelFormat(hdc);
354 /***********************************************************************
355 * wglCreateLayerContext (OPENGL32.@)
357 HGLRC WINAPI wglCreateLayerContext(HDC hdc,
359 TRACE("(%p,%d)\n", hdc, iLayerPlane);
361 if (iLayerPlane == 0) {
362 return wglCreateContext(hdc);
364 FIXME("no handler for layer %d\n", iLayerPlane);
369 /***********************************************************************
370 * wglDescribeLayerPlane (OPENGL32.@)
372 BOOL WINAPI wglDescribeLayerPlane(HDC hdc,
376 LPLAYERPLANEDESCRIPTOR plpd) {
377 FIXME("(%p,%d,%d,%d,%p)\n", hdc, iPixelFormat, iLayerPlane, nBytes, plpd);
382 /***********************************************************************
383 * wglGetLayerPaletteEntries (OPENGL32.@)
385 int WINAPI wglGetLayerPaletteEntries(HDC hdc,
389 const COLORREF *pcr) {
390 FIXME("(): stub!\n");
395 /* check if the extension is present in the list */
396 static BOOL has_extension( const char *list, const char *ext )
398 size_t len = strlen( ext );
402 while (*list == ' ') list++;
403 if (!strncmp( list, ext, len ) && (!list[len] || list[len] == ' ')) return TRUE;
404 list = strchr( list, ' ' );
409 static int compar(const void *elt_a, const void *elt_b) {
410 return strcmp(((const OpenGL_extension *) elt_a)->name,
411 ((const OpenGL_extension *) elt_b)->name);
414 /* Check if a GL extension is supported */
415 static BOOL is_extension_supported(const char* extension)
417 const char *gl_ext_string = (const char*)wine_glGetString(GL_EXTENSIONS);
419 TRACE("Checking for extension '%s'\n", extension);
422 ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
426 /* We use the GetProcAddress function from the display driver to retrieve function pointers
427 * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done
428 * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't
429 * require the function to return NULL when an extension isn't found. For this reason we check
430 * if the OpenGL extension required for the function we are looking up is supported. */
432 /* Check if the extension is part of the GL extension string to see if it is supported. */
433 if (has_extension(gl_ext_string, extension))
436 /* In general an OpenGL function starts as an ARB/EXT extension and at some stage
437 * it becomes part of the core OpenGL library and can be reached without the ARB/EXT
438 * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor.
439 * Check if we are searching for a core GL function */
440 if(strncmp(extension, "GL_VERSION_", 11) == 0)
442 const GLubyte *gl_version = glGetString(GL_VERSION);
443 const char *version = extension + 11; /* Move past 'GL_VERSION_' */
446 ERR("No OpenGL version found!\n");
450 /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function.
451 * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */
452 if( (gl_version[0] >= version[0]) || ((gl_version[0] == version[0]) && (gl_version[2] >= version[2])) ) {
455 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]);
461 /***********************************************************************
462 * wglGetProcAddress (OPENGL32.@)
464 PROC WINAPI wglGetProcAddress(LPCSTR lpszProc) {
466 OpenGL_extension ext;
467 const OpenGL_extension *ext_ret;
469 TRACE("(%s)\n", lpszProc);
471 if (lpszProc == NULL)
474 /* Without an active context opengl32 doesn't know to what
475 * driver it has to dispatch wglGetProcAddress.
477 if (wglGetCurrentContext() == NULL)
479 WARN("No active WGL context found\n");
483 /* Search in the thunks to find the real name of the extension */
485 ext_ret = bsearch(&ext, extension_registry, extension_registry_size,
486 sizeof(OpenGL_extension), compar);
488 /* If nothing was found, we are looking for a WGL extension or an unknown GL extension. */
489 if (ext_ret == NULL) {
490 /* If the function name starts with a 'w', it is a WGL extension */
491 if(lpszProc[0] == 'w')
492 return wine_wgl.p_wglGetProcAddress(lpszProc);
494 /* We are dealing with an unknown GL extension */
495 WARN("Extension '%s' not defined in opengl32.dll's function table!\n", lpszProc);
497 } else { /* We are looking for an OpenGL extension */
499 /* Check if the GL extension required by the function is available */
500 if(!is_extension_supported(ext_ret->extension)) {
501 WARN("Extension '%s' required by function '%s' not supported!\n", ext_ret->extension, lpszProc);
504 local_func = wine_wgl.p_wglGetProcAddress(ext_ret->name);
506 /* After that, look at the extensions defined in the Linux OpenGL library */
507 if (local_func == NULL) {
511 /* Remove the last 3 letters (EXT, ARB, ...).
513 I know that some extensions have more than 3 letters (MESA, NV,
514 INTEL, ...), but this is only a stop-gap measure to fix buggy
515 OpenGL drivers (moreover, it is only useful for old 1.0 apps
516 that query the glBindTextureEXT extension).
518 memcpy(buf, ext_ret->name, strlen(ext_ret->name) - 3);
519 buf[strlen(ext_ret->name) - 3] = '\0';
520 TRACE("Extension not found in the Linux OpenGL library, checking against libGL bug with %s..\n", buf);
522 ret = GetProcAddress(opengl32_handle, buf);
524 TRACE("Found function in main OpenGL library (%p)!\n", ret);
526 WARN("Did not find function %s (%s) in your OpenGL library!\n", lpszProc, ext_ret->name);
531 TRACE("returning function (%p)\n", ext_ret->func);
532 extension_funcs[ext_ret - extension_registry] = local_func;
534 return ext_ret->func;
539 /***********************************************************************
540 * wglRealizeLayerPalette (OPENGL32.@)
542 BOOL WINAPI wglRealizeLayerPalette(HDC hdc,
550 /***********************************************************************
551 * wglSetLayerPaletteEntries (OPENGL32.@)
553 int WINAPI wglSetLayerPaletteEntries(HDC hdc,
557 const COLORREF *pcr) {
558 FIXME("(): stub!\n");
563 /***********************************************************************
564 * wglSwapLayerBuffers (OPENGL32.@)
566 BOOL WINAPI wglSwapLayerBuffers(HDC hdc,
568 TRACE_(opengl)("(%p, %08x)\n", hdc, fuPlanes);
570 if (fuPlanes & WGL_SWAP_MAIN_PLANE) {
571 if (!GdiSwapBuffers(hdc)) return FALSE;
572 fuPlanes &= ~WGL_SWAP_MAIN_PLANE;
576 WARN("Following layers unhandled: %08x\n", fuPlanes);
582 /***********************************************************************
583 * wglUseFontBitmaps_common
585 static BOOL wglUseFontBitmaps_common( HDC hdc, DWORD first, DWORD count, DWORD listBase, BOOL unicode )
588 unsigned int glyph, size = 0;
589 void *bitmap = NULL, *gl_bitmap = NULL;
593 glGetIntegerv(GL_UNPACK_ALIGNMENT, &org_alignment);
594 glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
596 for (glyph = first; glyph < first + count; glyph++) {
597 static const MAT2 identity = { {0,1},{0,0},{0,0},{0,1} };
598 unsigned int needed_size, height, width, width_int;
601 needed_size = GetGlyphOutlineW(hdc, glyph, GGO_BITMAP, &gm, 0, NULL, &identity);
603 needed_size = GetGlyphOutlineA(hdc, glyph, GGO_BITMAP, &gm, 0, NULL, &identity);
605 TRACE("Glyph: %3d / List: %d size %d\n", glyph, listBase, needed_size);
606 if (needed_size == GDI_ERROR) {
611 if (needed_size > size) {
613 HeapFree(GetProcessHeap(), 0, bitmap);
614 HeapFree(GetProcessHeap(), 0, gl_bitmap);
615 bitmap = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
616 gl_bitmap = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
619 ret = (GetGlyphOutlineW(hdc, glyph, GGO_BITMAP, &gm, size, bitmap, &identity) != GDI_ERROR);
621 ret = (GetGlyphOutlineA(hdc, glyph, GGO_BITMAP, &gm, size, bitmap, &identity) != GDI_ERROR);
625 unsigned int bitmask;
626 unsigned char *bitmap_ = bitmap;
628 TRACE(" - bbox: %d x %d\n", gm.gmBlackBoxX, gm.gmBlackBoxY);
629 TRACE(" - origin: (%d, %d)\n", gm.gmptGlyphOrigin.x, gm.gmptGlyphOrigin.y);
630 TRACE(" - increment: %d - %d\n", gm.gmCellIncX, gm.gmCellIncY);
631 if (needed_size != 0) {
632 TRACE(" - bitmap:\n");
633 for (height = 0; height < gm.gmBlackBoxY; height++) {
635 for (width = 0, bitmask = 0x80; width < gm.gmBlackBoxX; width++, bitmask >>= 1) {
640 if (*bitmap_ & bitmask)
645 bitmap_ += (4 - ((UINT_PTR)bitmap_ & 0x03));
651 /* In OpenGL, the bitmap is drawn from the bottom to the top... So we need to invert the
652 * glyph for it to be drawn properly.
654 if (needed_size != 0) {
655 width_int = (gm.gmBlackBoxX + 31) / 32;
656 for (height = 0; height < gm.gmBlackBoxY; height++) {
657 for (width = 0; width < width_int; width++) {
658 ((int *) gl_bitmap)[(gm.gmBlackBoxY - height - 1) * width_int + width] =
659 ((int *) bitmap)[height * width_int + width];
664 glNewList(listBase++, GL_COMPILE);
665 if (needed_size != 0) {
666 glBitmap(gm.gmBlackBoxX, gm.gmBlackBoxY,
667 0 - gm.gmptGlyphOrigin.x, (int) gm.gmBlackBoxY - gm.gmptGlyphOrigin.y,
668 gm.gmCellIncX, gm.gmCellIncY,
671 /* This is the case of 'empty' glyphs like the space character */
672 glBitmap(0, 0, 0, 0, gm.gmCellIncX, gm.gmCellIncY, NULL);
677 glPixelStorei(GL_UNPACK_ALIGNMENT, org_alignment);
678 HeapFree(GetProcessHeap(), 0, bitmap);
679 HeapFree(GetProcessHeap(), 0, gl_bitmap);
683 /***********************************************************************
684 * wglUseFontBitmapsA (OPENGL32.@)
686 BOOL WINAPI wglUseFontBitmapsA(HDC hdc, DWORD first, DWORD count, DWORD listBase)
688 return wglUseFontBitmaps_common( hdc, first, count, listBase, FALSE );
691 /***********************************************************************
692 * wglUseFontBitmapsW (OPENGL32.@)
694 BOOL WINAPI wglUseFontBitmapsW(HDC hdc, DWORD first, DWORD count, DWORD listBase)
696 return wglUseFontBitmaps_common( hdc, first, count, listBase, TRUE );
701 static void *load_libglu(void)
703 static int already_loaded;
706 if (already_loaded) return libglu_handle;
709 TRACE("Trying to load GLU library: %s\n", SONAME_LIBGLU);
710 handle = wine_dlopen(SONAME_LIBGLU, RTLD_NOW, NULL, 0);
713 WARN("Failed to load %s\n", SONAME_LIBGLU);
717 #define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(handle, #f, NULL, 0)) == NULL) goto sym_not_found;
718 LOAD_FUNCPTR(gluNewTess)
719 LOAD_FUNCPTR(gluDeleteTess)
720 LOAD_FUNCPTR(gluTessBeginContour)
721 LOAD_FUNCPTR(gluTessBeginPolygon)
722 LOAD_FUNCPTR(gluTessCallback)
723 LOAD_FUNCPTR(gluTessEndContour)
724 LOAD_FUNCPTR(gluTessEndPolygon)
725 LOAD_FUNCPTR(gluTessVertex)
727 libglu_handle = handle;
731 WARN("Unable to load function ptrs from libGLU\n");
732 /* Close the library as we won't use it */
733 wine_dlclose(handle, NULL, 0);
737 static void fixed_to_double(POINTFX fixed, UINT em_size, GLdouble vertex[3])
739 vertex[0] = (fixed.x.value + (GLdouble)fixed.x.fract / (1 << 16)) / em_size;
740 vertex[1] = (fixed.y.value + (GLdouble)fixed.y.fract / (1 << 16)) / em_size;
744 static void tess_callback_vertex(GLvoid *vertex)
746 GLdouble *dbl = vertex;
747 TRACE("%f, %f, %f\n", dbl[0], dbl[1], dbl[2]);
751 static void tess_callback_begin(GLenum which)
753 TRACE("%d\n", which);
757 static void tess_callback_end(void)
763 /***********************************************************************
764 * wglUseFontOutlines_common
766 static BOOL wglUseFontOutlines_common(HDC hdc,
773 LPGLYPHMETRICSFLOAT lpgmf,
777 const MAT2 identity = {{0,1},{0,0},{0,0},{0,1}};
780 HFONT old_font, unscaled_font;
784 TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc, first, count,
785 listBase, deviation, extrusion, format, lpgmf, unicode ? "W" : "A");
789 ERR("libGLU is required for this function but isn't loaded\n");
793 tess = pgluNewTess();
794 if(!tess) return FALSE;
795 pgluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex);
796 pgluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin);
797 pgluTessCallback(tess, GLU_TESS_END, tess_callback_end);
799 GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf);
800 rc.left = rc.right = rc.bottom = 0;
802 DPtoLP(hdc, (POINT*)&rc, 2);
803 lf.lfHeight = -abs(rc.top - rc.bottom);
804 lf.lfOrientation = lf.lfEscapement = 0;
805 unscaled_font = CreateFontIndirectW(&lf);
806 old_font = SelectObject(hdc, unscaled_font);
808 for (glyph = first; glyph < first + count; glyph++)
813 TTPOLYGONHEADER *pph;
818 needed = GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
820 needed = GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
822 if(needed == GDI_ERROR)
825 buf = HeapAlloc(GetProcessHeap(), 0, needed);
826 vertices = HeapAlloc(GetProcessHeap(), 0, needed / sizeof(POINTFX) * 3 * sizeof(GLdouble));
829 GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
831 GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
833 TRACE("glyph %d\n", glyph);
837 lpgmf->gmfBlackBoxX = (float)gm.gmBlackBoxX / em_size;
838 lpgmf->gmfBlackBoxY = (float)gm.gmBlackBoxY / em_size;
839 lpgmf->gmfptGlyphOrigin.x = (float)gm.gmptGlyphOrigin.x / em_size;
840 lpgmf->gmfptGlyphOrigin.y = (float)gm.gmptGlyphOrigin.y / em_size;
841 lpgmf->gmfCellIncX = (float)gm.gmCellIncX / em_size;
842 lpgmf->gmfCellIncY = (float)gm.gmCellIncY / em_size;
844 TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf->gmfBlackBoxX, lpgmf->gmfBlackBoxY,
845 lpgmf->gmfptGlyphOrigin.x, lpgmf->gmfptGlyphOrigin.y, lpgmf->gmfCellIncX, lpgmf->gmfCellIncY);
849 glNewList(listBase++, GL_COMPILE);
850 pgluTessBeginPolygon(tess, NULL);
852 pph = (TTPOLYGONHEADER*)buf;
853 while((BYTE*)pph < buf + needed)
855 TRACE("\tstart %d, %d\n", pph->pfxStart.x.value, pph->pfxStart.y.value);
857 pgluTessBeginContour(tess);
859 fixed_to_double(pph->pfxStart, em_size, vertices);
860 pgluTessVertex(tess, vertices, vertices);
863 ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
864 while((char*)ppc < (char*)pph + pph->cb)
870 for(i = 0; i < ppc->cpfx; i++)
872 TRACE("\t\tline to %d, %d\n", ppc->apfx[i].x.value, ppc->apfx[i].y.value);
873 fixed_to_double(ppc->apfx[i], em_size, vertices);
874 pgluTessVertex(tess, vertices, vertices);
879 case TT_PRIM_QSPLINE:
880 for(i = 0; i < ppc->cpfx/2; i++)
882 /* FIXME: just connecting the control points for now */
883 TRACE("\t\tcurve %d,%d %d,%d\n",
884 ppc->apfx[i * 2].x.value, ppc->apfx[i * 3].y.value,
885 ppc->apfx[i * 2 + 1].x.value, ppc->apfx[i * 3 + 1].y.value);
886 fixed_to_double(ppc->apfx[i * 2], em_size, vertices);
887 pgluTessVertex(tess, vertices, vertices);
889 fixed_to_double(ppc->apfx[i * 2 + 1], em_size, vertices);
890 pgluTessVertex(tess, vertices, vertices);
895 ERR("\t\tcurve type = %d\n", ppc->wType);
896 pgluTessEndContour(tess);
900 ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
901 (ppc->cpfx - 1) * sizeof(POINTFX));
903 pgluTessEndContour(tess);
904 pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
908 pgluTessEndPolygon(tess);
909 glTranslated((GLdouble)gm.gmCellIncX / em_size, (GLdouble)gm.gmCellIncY / em_size, 0.0);
911 HeapFree(GetProcessHeap(), 0, buf);
912 HeapFree(GetProcessHeap(), 0, vertices);
916 DeleteObject(SelectObject(hdc, old_font));
917 pgluDeleteTess(tess);
922 #else /* SONAME_LIBGLU */
924 static BOOL wglUseFontOutlines_common(HDC hdc,
931 LPGLYPHMETRICSFLOAT lpgmf,
934 FIXME("Unable to compile in wglUseFontOutlines support without GL/glu.h\n");
938 #endif /* SONAME_LIBGLU */
940 /***********************************************************************
941 * wglUseFontOutlinesA (OPENGL32.@)
943 BOOL WINAPI wglUseFontOutlinesA(HDC hdc,
950 LPGLYPHMETRICSFLOAT lpgmf)
952 return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, FALSE);
955 /***********************************************************************
956 * wglUseFontOutlinesW (OPENGL32.@)
958 BOOL WINAPI wglUseFontOutlinesW(HDC hdc,
965 LPGLYPHMETRICSFLOAT lpgmf)
967 return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, TRUE);
970 /***********************************************************************
971 * glDebugEntry (OPENGL32.@)
973 GLint WINAPI wine_glDebugEntry( GLint unknown1, GLint unknown2 )
978 /***********************************************************************
979 * glFinish (OPENGL32.@)
981 void WINAPI wine_glFinish( void )
984 wine_wgl.p_wglFinish();
987 /***********************************************************************
988 * glFlush (OPENGL32.@)
990 void WINAPI wine_glFlush( void )
993 wine_wgl.p_wglFlush();
996 /* build the extension string by filtering out the disabled extensions */
997 static char *build_gl_extensions( const char *extensions )
999 char *p, *str, *disabled = NULL;
1003 TRACE( "GL_EXTENSIONS:\n" );
1005 if (!extensions) extensions = "";
1007 /* @@ Wine registry key: HKCU\Software\Wine\OpenGL */
1008 if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\OpenGL", &hkey ))
1010 DWORD size, ret = RegQueryValueExA( hkey, "DisabledExtensions", 0, NULL, NULL, &size );
1011 if (!ret && (disabled = HeapAlloc( GetProcessHeap(), 0, size )))
1012 ret = RegQueryValueExA( hkey, "DisabledExtensions", 0, NULL, (BYTE *)disabled, &size );
1013 RegCloseKey( hkey );
1014 if (ret) *disabled = 0;
1017 if ((str = HeapAlloc( GetProcessHeap(), 0, strlen(extensions) + 2 )))
1022 while (*extensions == ' ') extensions++;
1023 if (!*extensions) break;
1024 if (!(end = strchr( extensions, ' ' ))) end = extensions + strlen( extensions );
1025 memcpy( p, extensions, end - extensions );
1026 p[end - extensions] = 0;
1027 if (!has_extension( disabled, p ))
1029 TRACE("++ %s\n", p );
1030 p += end - extensions;
1033 else TRACE("-- %s (disabled by config)\n", p );
1038 HeapFree( GetProcessHeap(), 0, disabled );
1042 /***********************************************************************
1043 * glGetString (OPENGL32.@)
1045 const GLubyte * WINAPI wine_glGetString( GLenum name )
1047 static const GLubyte *gl_extensions;
1049 /* this is for buggy nvidia driver, crashing if called from a different
1050 thread with no context */
1051 if(wglGetCurrentContext() == NULL)
1054 if (name != GL_EXTENSIONS) return glGetString(name);
1058 const char *orig_ext = (const char *)glGetString(GL_EXTENSIONS);
1059 char *new_ext = build_gl_extensions( orig_ext );
1060 if (InterlockedCompareExchangePointer( (void **)&gl_extensions, new_ext, NULL ))
1061 HeapFree( GetProcessHeap(), 0, new_ext );
1063 return gl_extensions;
1066 /***********************************************************************
1067 * glGetIntegerv (OPENGL32.@)
1069 void WINAPI wine_glGetIntegerv( GLenum pname, GLint* params )
1071 wine_wgl.p_wglGetIntegerv(pname, params);
1074 /***********************************************************************
1075 * wglSwapBuffers (OPENGL32.@)
1077 BOOL WINAPI DECLSPEC_HOTPATCH wglSwapBuffers( HDC hdc )
1079 return GdiSwapBuffers(hdc);
1082 /* This is for brain-dead applications that use OpenGL functions before even
1083 creating a rendering context.... */
1084 static BOOL process_attach(void)
1088 GetDesktopWindow(); /* make sure winex11 is loaded (FIXME) */
1089 mod_gdi32 = GetModuleHandleA( "gdi32.dll" );
1093 ERR("GDI32 not loaded. Cannot create default context.\n");
1097 wine_wgl.p_wglGetProcAddress = (void *)GetProcAddress(mod_gdi32, "wglGetProcAddress");
1098 wine_wgl.p_wglCreateContext = (void *)GetProcAddress(mod_gdi32, "wglCreateContext");
1099 wine_wgl.p_GetPixelFormat = (void *)GetProcAddress(mod_gdi32, "GetPixelFormat");
1101 /* internal WGL functions */
1102 wine_wgl.p_wglCopyContext = (void *)wine_wgl.p_wglGetProcAddress("wglCopyContext");
1103 wine_wgl.p_wglDeleteContext = (void *)wine_wgl.p_wglGetProcAddress("wglDeleteContext");
1104 wine_wgl.p_wglFinish = (void *)wine_wgl.p_wglGetProcAddress("wglFinish");
1105 wine_wgl.p_wglFlush = (void *)wine_wgl.p_wglGetProcAddress("wglFlush");
1106 wine_wgl.p_wglGetCurrentContext = (void *)wine_wgl.p_wglGetProcAddress("wglGetCurrentContext");
1107 wine_wgl.p_wglGetCurrentDC = (void *)wine_wgl.p_wglGetProcAddress("wglGetCurrentDC");
1108 wine_wgl.p_wglGetIntegerv = (void *)wine_wgl.p_wglGetProcAddress("wglGetIntegerv");
1109 wine_wgl.p_wglMakeCurrent = (void *)wine_wgl.p_wglGetProcAddress("wglMakeCurrent");
1110 wine_wgl.p_wglShareLists = (void *)wine_wgl.p_wglGetProcAddress("wglShareLists");
1115 /**********************************************************************/
1117 static void process_detach(void)
1119 if (libglu_handle) wine_dlclose(libglu_handle, NULL, 0);
1122 /***********************************************************************
1123 * OpenGL initialisation routine
1125 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
1129 case DLL_PROCESS_ATTACH:
1130 opengl32_handle = hinst;
1131 DisableThreadLibraryCalls(hinst);
1132 return process_attach();
1133 case DLL_PROCESS_DETACH: