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"
37 #include "wine/gdi_driver.h"
39 #include "wine/debug.h"
41 WINE_DEFAULT_DEBUG_CHANNEL(wgl
);
42 WINE_DECLARE_DEBUG_CHANNEL(fps
);
44 /* handle management */
46 #define MAX_WGL_HANDLES 1024
50 HANDLE_PBUFFER
= 0 << 12,
51 HANDLE_CONTEXT
= 1 << 12,
52 HANDLE_CONTEXT_V3
= 3 << 12,
53 HANDLE_TYPE_MASK
= 15 << 12
58 DWORD tid
; /* thread that the context is current in */
59 HDC draw_dc
; /* current drawing DC */
60 HDC read_dc
; /* current reading DC */
61 GLubyte
*extensions
; /* extension string */
62 GLuint
*disabled_exts
; /* indices of disabled extensions */
63 struct wgl_context
*drv_ctx
; /* driver context */
69 struct opengl_funcs
*funcs
;
72 struct opengl_context
*context
; /* for HANDLE_CONTEXT */
73 struct wgl_pbuffer
*pbuffer
; /* for HANDLE_PBUFFER */
74 struct wgl_handle
*next
; /* for free handles */
78 static struct wgl_handle wgl_handles
[MAX_WGL_HANDLES
];
79 static struct wgl_handle
*next_free
;
80 static unsigned int handle_count
;
82 static CRITICAL_SECTION wgl_section
;
83 static CRITICAL_SECTION_DEBUG critsect_debug
=
86 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
87 0, 0, { (DWORD_PTR
)(__FILE__
": wgl_section") }
89 static CRITICAL_SECTION wgl_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
91 static const MAT2 identity
= { {0,1},{0,0},{0,0},{0,1} };
93 static inline HANDLE
next_handle( struct wgl_handle
*ptr
, enum wgl_handle_type type
)
95 WORD generation
= HIWORD( ptr
->handle
) + 1;
96 if (!generation
) generation
++;
97 ptr
->handle
= MAKELONG( ptr
- wgl_handles
, generation
) | type
;
98 return ULongToHandle( ptr
->handle
);
101 /* the current context is assumed valid and doesn't need locking */
102 static inline struct wgl_handle
*get_current_context_ptr(void)
104 if (!NtCurrentTeb()->glCurrentRC
) return NULL
;
105 return &wgl_handles
[LOWORD(NtCurrentTeb()->glCurrentRC
) & ~HANDLE_TYPE_MASK
];
108 static struct wgl_handle
*get_handle_ptr( HANDLE handle
, enum wgl_handle_type type
)
110 unsigned int index
= LOWORD( handle
) & ~HANDLE_TYPE_MASK
;
112 EnterCriticalSection( &wgl_section
);
113 if (index
< handle_count
&& ULongToHandle(wgl_handles
[index
].handle
) == handle
)
114 return &wgl_handles
[index
];
116 LeaveCriticalSection( &wgl_section
);
117 SetLastError( ERROR_INVALID_HANDLE
);
121 static void release_handle_ptr( struct wgl_handle
*ptr
)
123 if (ptr
) LeaveCriticalSection( &wgl_section
);
126 static HANDLE
alloc_handle( enum wgl_handle_type type
, struct opengl_funcs
*funcs
, void *user_ptr
)
129 struct wgl_handle
*ptr
= NULL
;
131 EnterCriticalSection( &wgl_section
);
132 if ((ptr
= next_free
))
133 next_free
= next_free
->u
.next
;
134 else if (handle_count
< MAX_WGL_HANDLES
)
135 ptr
= &wgl_handles
[handle_count
++];
140 ptr
->u
.context
= user_ptr
;
141 handle
= next_handle( ptr
, type
);
143 else SetLastError( ERROR_NOT_ENOUGH_MEMORY
);
144 LeaveCriticalSection( &wgl_section
);
148 static void free_handle_ptr( struct wgl_handle
*ptr
)
150 ptr
->handle
|= 0xffff;
151 ptr
->u
.next
= next_free
;
154 LeaveCriticalSection( &wgl_section
);
157 static inline enum wgl_handle_type
get_current_context_type(void)
159 if (!NtCurrentTeb()->glCurrentRC
) return HANDLE_CONTEXT
;
160 return LOWORD(NtCurrentTeb()->glCurrentRC
) & HANDLE_TYPE_MASK
;
163 /***********************************************************************
164 * wglCopyContext (OPENGL32.@)
166 BOOL WINAPI
wglCopyContext(HGLRC hglrcSrc
, HGLRC hglrcDst
, UINT mask
)
168 struct wgl_handle
*src
, *dst
;
171 if (!(src
= get_handle_ptr( hglrcSrc
, HANDLE_CONTEXT
))) return FALSE
;
172 if ((dst
= get_handle_ptr( hglrcDst
, HANDLE_CONTEXT
)))
174 if (src
->funcs
!= dst
->funcs
) SetLastError( ERROR_INVALID_HANDLE
);
175 else ret
= src
->funcs
->wgl
.p_wglCopyContext( src
->u
.context
->drv_ctx
,
176 dst
->u
.context
->drv_ctx
, mask
);
178 release_handle_ptr( dst
);
179 release_handle_ptr( src
);
183 /***********************************************************************
184 * wglDeleteContext (OPENGL32.@)
186 BOOL WINAPI
wglDeleteContext(HGLRC hglrc
)
188 struct wgl_handle
*ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
);
190 if (!ptr
) return FALSE
;
192 if (ptr
->u
.context
->tid
&& ptr
->u
.context
->tid
!= GetCurrentThreadId())
194 SetLastError( ERROR_BUSY
);
195 release_handle_ptr( ptr
);
198 if (hglrc
== NtCurrentTeb()->glCurrentRC
) wglMakeCurrent( 0, 0 );
199 ptr
->funcs
->wgl
.p_wglDeleteContext( ptr
->u
.context
->drv_ctx
);
200 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
->disabled_exts
);
201 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
->extensions
);
202 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
);
203 free_handle_ptr( ptr
);
207 /***********************************************************************
208 * wglMakeCurrent (OPENGL32.@)
210 BOOL WINAPI
wglMakeCurrent(HDC hdc
, HGLRC hglrc
)
213 struct wgl_handle
*ptr
, *prev
= get_current_context_ptr();
217 if (!(ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
))) return FALSE
;
218 if (!ptr
->u
.context
->tid
|| ptr
->u
.context
->tid
== GetCurrentThreadId())
220 ret
= ptr
->funcs
->wgl
.p_wglMakeCurrent( hdc
, ptr
->u
.context
->drv_ctx
);
223 if (prev
) prev
->u
.context
->tid
= 0;
224 ptr
->u
.context
->tid
= GetCurrentThreadId();
225 ptr
->u
.context
->draw_dc
= hdc
;
226 ptr
->u
.context
->read_dc
= hdc
;
227 NtCurrentTeb()->glCurrentRC
= hglrc
;
228 NtCurrentTeb()->glTable
= ptr
->funcs
;
233 SetLastError( ERROR_BUSY
);
236 release_handle_ptr( ptr
);
240 if (!prev
->funcs
->wgl
.p_wglMakeCurrent( 0, NULL
)) return FALSE
;
241 prev
->u
.context
->tid
= 0;
242 NtCurrentTeb()->glCurrentRC
= 0;
243 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
247 SetLastError( ERROR_INVALID_HANDLE
);
253 /***********************************************************************
254 * wglCreateContextAttribsARB
256 * Provided by the WGL_ARB_create_context extension.
258 HGLRC WINAPI
wglCreateContextAttribsARB( HDC hdc
, HGLRC share
, const int *attribs
)
261 struct wgl_context
*drv_ctx
;
262 struct wgl_handle
*share_ptr
= NULL
;
263 struct opengl_context
*context
;
264 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
268 SetLastError( ERROR_DC_NOT_FOUND
);
271 if (!funcs
->ext
.p_wglCreateContextAttribsARB
) return 0;
272 if (share
&& !(share_ptr
= get_handle_ptr( share
, HANDLE_CONTEXT
)))
274 SetLastError( ERROR_INVALID_OPERATION
);
277 if ((drv_ctx
= funcs
->ext
.p_wglCreateContextAttribsARB( hdc
,
278 share_ptr
? share_ptr
->u
.context
->drv_ctx
: NULL
, attribs
)))
280 if ((context
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*context
) )))
282 enum wgl_handle_type type
= HANDLE_CONTEXT
;
288 if (attribs
[0] == WGL_CONTEXT_MAJOR_VERSION_ARB
)
291 type
= HANDLE_CONTEXT_V3
;
298 context
->drv_ctx
= drv_ctx
;
299 if (!(ret
= alloc_handle( type
, funcs
, context
)))
300 HeapFree( GetProcessHeap(), 0, context
);
302 if (!ret
) funcs
->wgl
.p_wglDeleteContext( drv_ctx
);
304 release_handle_ptr( share_ptr
);
309 /***********************************************************************
310 * wglMakeContextCurrentARB
312 * Provided by the WGL_ARB_make_current_read extension.
314 BOOL WINAPI
wglMakeContextCurrentARB( HDC draw_hdc
, HDC read_hdc
, HGLRC hglrc
)
317 struct wgl_handle
*ptr
, *prev
= get_current_context_ptr();
321 if (!(ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
))) return FALSE
;
322 if (!ptr
->u
.context
->tid
|| ptr
->u
.context
->tid
== GetCurrentThreadId())
324 ret
= (ptr
->funcs
->ext
.p_wglMakeContextCurrentARB
&&
325 ptr
->funcs
->ext
.p_wglMakeContextCurrentARB( draw_hdc
, read_hdc
,
326 ptr
->u
.context
->drv_ctx
));
329 if (prev
) prev
->u
.context
->tid
= 0;
330 ptr
->u
.context
->tid
= GetCurrentThreadId();
331 ptr
->u
.context
->draw_dc
= draw_hdc
;
332 ptr
->u
.context
->read_dc
= read_hdc
;
333 NtCurrentTeb()->glCurrentRC
= hglrc
;
334 NtCurrentTeb()->glTable
= ptr
->funcs
;
339 SetLastError( ERROR_BUSY
);
342 release_handle_ptr( ptr
);
346 if (!prev
->funcs
->wgl
.p_wglMakeCurrent( 0, NULL
)) return FALSE
;
347 prev
->u
.context
->tid
= 0;
348 NtCurrentTeb()->glCurrentRC
= 0;
349 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
354 /***********************************************************************
355 * wglGetCurrentReadDCARB
357 * Provided by the WGL_ARB_make_current_read extension.
359 HDC WINAPI
wglGetCurrentReadDCARB(void)
361 struct wgl_handle
*ptr
= get_current_context_ptr();
364 return ptr
->u
.context
->read_dc
;
367 /***********************************************************************
368 * wglShareLists (OPENGL32.@)
370 BOOL WINAPI
wglShareLists(HGLRC hglrcSrc
, HGLRC hglrcDst
)
373 struct wgl_handle
*src
, *dst
;
375 if (!(src
= get_handle_ptr( hglrcSrc
, HANDLE_CONTEXT
))) return FALSE
;
376 if ((dst
= get_handle_ptr( hglrcDst
, HANDLE_CONTEXT
)))
378 if (src
->funcs
!= dst
->funcs
) SetLastError( ERROR_INVALID_HANDLE
);
379 else ret
= src
->funcs
->wgl
.p_wglShareLists( src
->u
.context
->drv_ctx
, dst
->u
.context
->drv_ctx
);
381 release_handle_ptr( dst
);
382 release_handle_ptr( src
);
386 /***********************************************************************
387 * wglGetCurrentDC (OPENGL32.@)
389 HDC WINAPI
wglGetCurrentDC(void)
391 struct wgl_handle
*ptr
= get_current_context_ptr();
394 return ptr
->u
.context
->draw_dc
;
397 /***********************************************************************
398 * wglCreateContext (OPENGL32.@)
400 HGLRC WINAPI
wglCreateContext(HDC hdc
)
403 struct wgl_context
*drv_ctx
;
404 struct opengl_context
*context
;
405 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
407 if (!funcs
) return 0;
408 if (!(drv_ctx
= funcs
->wgl
.p_wglCreateContext( hdc
))) return 0;
409 if ((context
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*context
) )))
411 context
->drv_ctx
= drv_ctx
;
412 if (!(ret
= alloc_handle( HANDLE_CONTEXT
, funcs
, context
)))
413 HeapFree( GetProcessHeap(), 0, context
);
415 if (!ret
) funcs
->wgl
.p_wglDeleteContext( drv_ctx
);
419 /***********************************************************************
420 * wglGetCurrentContext (OPENGL32.@)
422 HGLRC WINAPI
wglGetCurrentContext(void)
424 return NtCurrentTeb()->glCurrentRC
;
427 /***********************************************************************
428 * wglDescribePixelFormat (OPENGL32.@)
430 INT WINAPI
wglDescribePixelFormat(HDC hdc
, INT format
, UINT size
, PIXELFORMATDESCRIPTOR
*descr
)
432 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
433 if (!funcs
) return 0;
434 return funcs
->wgl
.p_wglDescribePixelFormat( hdc
, format
, size
, descr
);
437 /***********************************************************************
438 * wglChoosePixelFormat (OPENGL32.@)
440 INT WINAPI
wglChoosePixelFormat(HDC hdc
, const PIXELFORMATDESCRIPTOR
* ppfd
)
442 PIXELFORMATDESCRIPTOR format
, best
;
443 int i
, count
, best_format
;
444 int bestDBuffer
= -1, bestStereo
= -1;
446 TRACE_(wgl
)( "%p %p: size %u version %u flags %u type %u color %u %u,%u,%u,%u "
447 "accum %u depth %u stencil %u aux %u\n",
448 hdc
, ppfd
, ppfd
->nSize
, ppfd
->nVersion
, ppfd
->dwFlags
, ppfd
->iPixelType
,
449 ppfd
->cColorBits
, ppfd
->cRedBits
, ppfd
->cGreenBits
, ppfd
->cBlueBits
, ppfd
->cAlphaBits
,
450 ppfd
->cAccumBits
, ppfd
->cDepthBits
, ppfd
->cStencilBits
, ppfd
->cAuxBuffers
);
452 count
= wglDescribePixelFormat( hdc
, 0, 0, NULL
);
453 if (!count
) return 0;
457 best
.cAlphaBits
= -1;
458 best
.cColorBits
= -1;
459 best
.cDepthBits
= -1;
460 best
.cStencilBits
= -1;
461 best
.cAuxBuffers
= -1;
463 for (i
= 1; i
<= count
; i
++)
465 if (!wglDescribePixelFormat( hdc
, i
, sizeof(format
), &format
)) continue;
467 if (ppfd
->iPixelType
!= format
.iPixelType
)
469 TRACE( "pixel type mismatch for iPixelFormat=%d\n", i
);
473 /* only use bitmap capable for formats for bitmap rendering */
474 if( (ppfd
->dwFlags
& PFD_DRAW_TO_BITMAP
) != (format
.dwFlags
& PFD_DRAW_TO_BITMAP
))
476 TRACE( "PFD_DRAW_TO_BITMAP mismatch for iPixelFormat=%d\n", i
);
480 /* The behavior of PDF_STEREO/PFD_STEREO_DONTCARE and PFD_DOUBLEBUFFER / PFD_DOUBLEBUFFER_DONTCARE
481 * is not very clear on MSDN. They specify that ChoosePixelFormat tries to match pixel formats
482 * with the flag (PFD_STEREO / PFD_DOUBLEBUFFERING) set. Otherwise it says that it tries to match
483 * formats without the given flag set.
484 * A test on Windows using a Radeon 9500pro on WinXP (the driver doesn't support Stereo)
485 * has indicated that a format without stereo is returned when stereo is unavailable.
486 * So in case PFD_STEREO is set, formats that support it should have priority above formats
487 * without. In case PFD_STEREO_DONTCARE is set, stereo is ignored.
489 * To summarize the following is most likely the correct behavior:
490 * stereo not set -> prefer non-stereo formats, but also accept stereo formats
491 * stereo set -> prefer stereo formats, but also accept non-stereo formats
492 * stereo don't care -> it doesn't matter whether we get stereo or not
494 * In Wine we will treat non-stereo the same way as don't care because it makes
495 * format selection even more complicated and second drivers with Stereo advertise
496 * each format twice anyway.
499 /* Doublebuffer, see the comments above */
500 if (!(ppfd
->dwFlags
& PFD_DOUBLEBUFFER_DONTCARE
))
502 if (((ppfd
->dwFlags
& PFD_DOUBLEBUFFER
) != bestDBuffer
) &&
503 ((format
.dwFlags
& PFD_DOUBLEBUFFER
) == (ppfd
->dwFlags
& PFD_DOUBLEBUFFER
)))
506 if (bestDBuffer
!= -1 && (format
.dwFlags
& PFD_DOUBLEBUFFER
) != bestDBuffer
) continue;
508 else if (!best_format
)
511 /* Stereo, see the comments above. */
512 if (!(ppfd
->dwFlags
& PFD_STEREO_DONTCARE
))
514 if (((ppfd
->dwFlags
& PFD_STEREO
) != bestStereo
) &&
515 ((format
.dwFlags
& PFD_STEREO
) == (ppfd
->dwFlags
& PFD_STEREO
)))
518 if (bestStereo
!= -1 && (format
.dwFlags
& PFD_STEREO
) != bestStereo
) continue;
520 else if (!best_format
)
523 /* Below we will do a number of checks to select the 'best' pixelformat.
524 * We assume the precedence cColorBits > cAlphaBits > cDepthBits > cStencilBits -> cAuxBuffers.
525 * The code works by trying to match the most important options as close as possible.
526 * When a reasonable format is found, we will try to match more options.
527 * It appears (see the opengl32 test) that Windows opengl drivers ignore options
528 * like cColorBits, cAlphaBits and friends if they are set to 0, so they are considered
529 * as DONTCARE. At least Serious Sam TSE relies on this behavior. */
531 if (ppfd
->cColorBits
)
533 if (((ppfd
->cColorBits
> best
.cColorBits
) && (format
.cColorBits
> best
.cColorBits
)) ||
534 ((format
.cColorBits
>= ppfd
->cColorBits
) && (format
.cColorBits
< best
.cColorBits
)))
537 if (best
.cColorBits
!= format
.cColorBits
) /* Do further checks if the format is compatible */
539 TRACE( "color mismatch for iPixelFormat=%d\n", i
);
543 if (ppfd
->cAlphaBits
)
545 if (((ppfd
->cAlphaBits
> best
.cAlphaBits
) && (format
.cAlphaBits
> best
.cAlphaBits
)) ||
546 ((format
.cAlphaBits
>= ppfd
->cAlphaBits
) && (format
.cAlphaBits
< best
.cAlphaBits
)))
549 if (best
.cAlphaBits
!= format
.cAlphaBits
)
551 TRACE( "alpha mismatch for iPixelFormat=%d\n", i
);
555 if (ppfd
->cDepthBits
)
557 if (((ppfd
->cDepthBits
> best
.cDepthBits
) && (format
.cDepthBits
> best
.cDepthBits
)) ||
558 ((format
.cDepthBits
>= ppfd
->cDepthBits
) && (format
.cDepthBits
< best
.cDepthBits
)))
561 if (best
.cDepthBits
!= format
.cDepthBits
)
563 TRACE( "depth mismatch for iPixelFormat=%d\n", i
);
567 if (ppfd
->cStencilBits
)
569 if (((ppfd
->cStencilBits
> best
.cStencilBits
) && (format
.cStencilBits
> best
.cStencilBits
)) ||
570 ((format
.cStencilBits
>= ppfd
->cStencilBits
) && (format
.cStencilBits
< best
.cStencilBits
)))
573 if (best
.cStencilBits
!= format
.cStencilBits
)
575 TRACE( "stencil mismatch for iPixelFormat=%d\n", i
);
579 if (ppfd
->cAuxBuffers
)
581 if (((ppfd
->cAuxBuffers
> best
.cAuxBuffers
) && (format
.cAuxBuffers
> best
.cAuxBuffers
)) ||
582 ((format
.cAuxBuffers
>= ppfd
->cAuxBuffers
) && (format
.cAuxBuffers
< best
.cAuxBuffers
)))
585 if (best
.cAuxBuffers
!= format
.cAuxBuffers
)
587 TRACE( "aux mismatch for iPixelFormat=%d\n", i
);
596 bestDBuffer
= format
.dwFlags
& PFD_DOUBLEBUFFER
;
597 bestStereo
= format
.dwFlags
& PFD_STEREO
;
600 TRACE( "returning %u\n", best_format
);
604 /***********************************************************************
605 * wglGetPixelFormat (OPENGL32.@)
607 INT WINAPI
wglGetPixelFormat(HDC hdc
)
609 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
612 SetLastError( ERROR_INVALID_PIXEL_FORMAT
);
615 return funcs
->wgl
.p_wglGetPixelFormat( hdc
);
618 /***********************************************************************
619 * wglSetPixelFormat(OPENGL32.@)
621 BOOL WINAPI
wglSetPixelFormat( HDC hdc
, INT format
, const PIXELFORMATDESCRIPTOR
*descr
)
623 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
624 if (!funcs
) return FALSE
;
625 return funcs
->wgl
.p_wglSetPixelFormat( hdc
, format
, descr
);
628 /***********************************************************************
629 * wglSwapBuffers (OPENGL32.@)
631 BOOL WINAPI DECLSPEC_HOTPATCH
wglSwapBuffers( HDC hdc
)
633 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
635 if (!funcs
|| !funcs
->wgl
.p_wglSwapBuffers
) return FALSE
;
636 if (!funcs
->wgl
.p_wglSwapBuffers( hdc
)) return FALSE
;
640 static long prev_time
, start_time
;
641 static unsigned long frames
, frames_total
;
643 DWORD time
= GetTickCount();
646 /* every 1.5 seconds */
647 if (time
- prev_time
> 1500)
649 TRACE_(fps
)("@ approx %.2ffps, total %.2ffps\n",
650 1000.0*frames
/(time
- prev_time
), 1000.0*frames_total
/(time
- start_time
));
653 if (start_time
== 0) start_time
= time
;
659 /***********************************************************************
660 * wglCreateLayerContext (OPENGL32.@)
662 HGLRC WINAPI
wglCreateLayerContext(HDC hdc
,
664 TRACE("(%p,%d)\n", hdc
, iLayerPlane
);
666 if (iLayerPlane
== 0) {
667 return wglCreateContext(hdc
);
669 FIXME("no handler for layer %d\n", iLayerPlane
);
674 /***********************************************************************
675 * wglDescribeLayerPlane (OPENGL32.@)
677 BOOL WINAPI
wglDescribeLayerPlane(HDC hdc
,
681 LPLAYERPLANEDESCRIPTOR plpd
) {
682 FIXME("(%p,%d,%d,%d,%p)\n", hdc
, iPixelFormat
, iLayerPlane
, nBytes
, plpd
);
687 /***********************************************************************
688 * wglGetLayerPaletteEntries (OPENGL32.@)
690 int WINAPI
wglGetLayerPaletteEntries(HDC hdc
,
694 const COLORREF
*pcr
) {
695 FIXME("(): stub!\n");
700 static BOOL
filter_extensions(const char *extensions
, GLubyte
**exts_list
, GLuint
**disabled_exts
);
702 void WINAPI
glGetIntegerv(GLenum pname
, GLint
*data
)
704 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
706 TRACE("(%d, %p)\n", pname
, data
);
707 if (pname
== GL_NUM_EXTENSIONS
)
709 struct wgl_handle
*ptr
= get_current_context_ptr();
711 if (ptr
->u
.context
->disabled_exts
||
712 filter_extensions(NULL
, NULL
, &ptr
->u
.context
->disabled_exts
))
714 const GLuint
*disabled_exts
= ptr
->u
.context
->disabled_exts
;
715 GLint count
, disabled_count
= 0;
717 funcs
->gl
.p_glGetIntegerv(pname
, &count
);
718 while (*disabled_exts
++ != ~0u)
720 *data
= count
- disabled_count
;
724 funcs
->gl
.p_glGetIntegerv(pname
, data
);
727 const GLubyte
* WINAPI
glGetStringi(GLenum name
, GLuint index
)
729 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
731 TRACE("(%d, %d)\n", name
, index
);
732 if (!funcs
->ext
.p_glGetStringi
)
734 void **func_ptr
= (void **)&funcs
->ext
.p_glGetStringi
;
736 *func_ptr
= funcs
->wgl
.p_wglGetProcAddress("glGetStringi");
739 if (name
== GL_EXTENSIONS
)
741 struct wgl_handle
*ptr
= get_current_context_ptr();
743 if (ptr
->u
.context
->disabled_exts
||
744 filter_extensions(NULL
, NULL
, &ptr
->u
.context
->disabled_exts
))
746 const GLuint
*disabled_exts
= ptr
->u
.context
->disabled_exts
;
747 unsigned int disabled_count
= 0;
749 while (index
+ disabled_count
>= *disabled_exts
++)
751 return funcs
->ext
.p_glGetStringi(name
, index
+ disabled_count
);
754 return funcs
->ext
.p_glGetStringi(name
, index
);
757 /* check if the extension is present in the list */
758 static BOOL
has_extension( const char *list
, const char *ext
, size_t len
)
764 GLint extensions_count
;
766 glGetIntegerv(GL_NUM_EXTENSIONS
, &extensions_count
);
767 for (i
= 0; i
< extensions_count
; ++i
)
769 gl_ext
= (const char *)glGetStringi(GL_EXTENSIONS
, i
);
770 if (!strncmp(gl_ext
, ext
, len
) && !gl_ext
[len
])
778 while (*list
== ' ') list
++;
779 if (!strncmp( list
, ext
, len
) && (!list
[len
] || list
[len
] == ' ')) return TRUE
;
780 list
= strchr( list
, ' ' );
785 static int compar(const void *elt_a
, const void *elt_b
) {
786 return strcmp(((const OpenGL_extension
*) elt_a
)->name
,
787 ((const OpenGL_extension
*) elt_b
)->name
);
790 /* Check if a GL extension is supported */
791 static BOOL
is_extension_supported(const char* extension
)
793 enum wgl_handle_type type
= get_current_context_type();
794 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
795 const char *gl_ext_string
= NULL
;
798 TRACE("Checking for extension '%s'\n", extension
);
800 if (type
== HANDLE_CONTEXT
)
802 gl_ext_string
= (const char*)glGetString(GL_EXTENSIONS
);
805 ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
810 /* We use the GetProcAddress function from the display driver to retrieve function pointers
811 * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done
812 * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't
813 * require the function to return NULL when an extension isn't found. For this reason we check
814 * if the OpenGL extension required for the function we are looking up is supported. */
816 while ((len
= strcspn(extension
, " ")) != 0)
818 /* Check if the extension is part of the GL extension string to see if it is supported. */
819 if (has_extension(gl_ext_string
, extension
, len
))
822 /* In general an OpenGL function starts as an ARB/EXT extension and at some stage
823 * it becomes part of the core OpenGL library and can be reached without the ARB/EXT
824 * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor.
825 * Check if we are searching for a core GL function */
826 if(strncmp(extension
, "GL_VERSION_", 11) == 0)
828 const GLubyte
*gl_version
= funcs
->gl
.p_glGetString(GL_VERSION
);
829 const char *version
= extension
+ 11; /* Move past 'GL_VERSION_' */
832 ERR("No OpenGL version found!\n");
836 /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function.
837 * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */
838 if( (gl_version
[0] > version
[0]) || ((gl_version
[0] == version
[0]) && (gl_version
[2] >= version
[2])) ) {
841 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]);
844 if (extension
[len
] == ' ') len
++;
851 /***********************************************************************
852 * wglGetProcAddress (OPENGL32.@)
854 PROC WINAPI
wglGetProcAddress( LPCSTR name
)
856 struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
858 OpenGL_extension ext
;
859 const OpenGL_extension
*ext_ret
;
861 if (!name
) return NULL
;
863 /* Without an active context opengl32 doesn't know to what
864 * driver it has to dispatch wglGetProcAddress.
866 if (!get_current_context_ptr())
868 WARN("No active WGL context found\n");
873 ext_ret
= bsearch(&ext
, extension_registry
, extension_registry_size
, sizeof(ext
), compar
);
876 WARN("Function %s unknown\n", name
);
880 func_ptr
= (void **)&funcs
->ext
+ (ext_ret
- extension_registry
);
883 void *driver_func
= funcs
->wgl
.p_wglGetProcAddress( name
);
885 if (!is_extension_supported(ext_ret
->extension
))
888 static const struct { const char *name
, *alt
; } alternatives
[] =
890 { "glCopyTexSubImage3DEXT", "glCopyTexSubImage3D" }, /* needed by RuneScape */
891 { "glVertexAttribDivisor", "glVertexAttribDivisorARB"}, /* needed by Caffeine */
894 for (i
= 0; i
< sizeof(alternatives
)/sizeof(alternatives
[0]); i
++)
896 if (strcmp( name
, alternatives
[i
].name
)) continue;
897 WARN("Extension %s required for %s not supported, trying %s\n",
898 ext_ret
->extension
, name
, alternatives
[i
].alt
);
899 return wglGetProcAddress( alternatives
[i
].alt
);
901 WARN("Extension %s required for %s not supported\n", ext_ret
->extension
, name
);
905 if (driver_func
== NULL
)
907 WARN("Function %s not supported by driver\n", name
);
910 *func_ptr
= driver_func
;
913 TRACE("returning %s -> %p\n", name
, ext_ret
->func
);
914 return ext_ret
->func
;
917 /***********************************************************************
918 * wglRealizeLayerPalette (OPENGL32.@)
920 BOOL WINAPI
wglRealizeLayerPalette(HDC hdc
,
928 /***********************************************************************
929 * wglSetLayerPaletteEntries (OPENGL32.@)
931 int WINAPI
wglSetLayerPaletteEntries(HDC hdc
,
935 const COLORREF
*pcr
) {
936 FIXME("(): stub!\n");
941 /***********************************************************************
942 * wglSwapLayerBuffers (OPENGL32.@)
944 BOOL WINAPI
wglSwapLayerBuffers(HDC hdc
,
946 TRACE("(%p, %08x)\n", hdc
, fuPlanes
);
948 if (fuPlanes
& WGL_SWAP_MAIN_PLANE
) {
949 if (!wglSwapBuffers( hdc
)) return FALSE
;
950 fuPlanes
&= ~WGL_SWAP_MAIN_PLANE
;
954 WARN("Following layers unhandled: %08x\n", fuPlanes
);
960 /***********************************************************************
963 * Provided by the WGL_ARB_render_texture extension.
965 BOOL WINAPI
wglBindTexImageARB( HPBUFFERARB handle
, int buffer
)
967 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
970 if (!ptr
) return FALSE
;
971 ret
= ptr
->funcs
->ext
.p_wglBindTexImageARB( ptr
->u
.pbuffer
, buffer
);
972 release_handle_ptr( ptr
);
976 /***********************************************************************
977 * wglReleaseTexImageARB
979 * Provided by the WGL_ARB_render_texture extension.
981 BOOL WINAPI
wglReleaseTexImageARB( HPBUFFERARB handle
, int buffer
)
983 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
986 if (!ptr
) return FALSE
;
987 ret
= ptr
->funcs
->ext
.p_wglReleaseTexImageARB( ptr
->u
.pbuffer
, buffer
);
988 release_handle_ptr( ptr
);
992 /***********************************************************************
993 * wglSetPbufferAttribARB
995 * Provided by the WGL_ARB_render_texture extension.
997 BOOL WINAPI
wglSetPbufferAttribARB( HPBUFFERARB handle
, const int *attribs
)
999 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1002 if (!ptr
) return FALSE
;
1003 ret
= ptr
->funcs
->ext
.p_wglSetPbufferAttribARB( ptr
->u
.pbuffer
, attribs
);
1004 release_handle_ptr( ptr
);
1008 /***********************************************************************
1009 * wglCreatePbufferARB
1011 * Provided by the WGL_ARB_pbuffer extension.
1013 HPBUFFERARB WINAPI
wglCreatePbufferARB( HDC hdc
, int format
, int width
, int height
, const int *attribs
)
1016 struct wgl_pbuffer
*pbuffer
;
1017 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1019 if (!funcs
|| !funcs
->ext
.p_wglCreatePbufferARB
) return 0;
1020 if (!(pbuffer
= funcs
->ext
.p_wglCreatePbufferARB( hdc
, format
, width
, height
, attribs
))) return 0;
1021 ret
= alloc_handle( HANDLE_PBUFFER
, funcs
, pbuffer
);
1022 if (!ret
) funcs
->ext
.p_wglDestroyPbufferARB( pbuffer
);
1026 /***********************************************************************
1027 * wglGetPbufferDCARB
1029 * Provided by the WGL_ARB_pbuffer extension.
1031 HDC WINAPI
wglGetPbufferDCARB( HPBUFFERARB handle
)
1033 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1037 ret
= ptr
->funcs
->ext
.p_wglGetPbufferDCARB( ptr
->u
.pbuffer
);
1038 release_handle_ptr( ptr
);
1042 /***********************************************************************
1043 * wglReleasePbufferDCARB
1045 * Provided by the WGL_ARB_pbuffer extension.
1047 int WINAPI
wglReleasePbufferDCARB( HPBUFFERARB handle
, HDC hdc
)
1049 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1052 if (!ptr
) return FALSE
;
1053 ret
= ptr
->funcs
->ext
.p_wglReleasePbufferDCARB( ptr
->u
.pbuffer
, hdc
);
1054 release_handle_ptr( ptr
);
1058 /***********************************************************************
1059 * wglDestroyPbufferARB
1061 * Provided by the WGL_ARB_pbuffer extension.
1063 BOOL WINAPI
wglDestroyPbufferARB( HPBUFFERARB handle
)
1065 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1067 if (!ptr
) return FALSE
;
1068 ptr
->funcs
->ext
.p_wglDestroyPbufferARB( ptr
->u
.pbuffer
);
1069 free_handle_ptr( ptr
);
1073 /***********************************************************************
1074 * wglQueryPbufferARB
1076 * Provided by the WGL_ARB_pbuffer extension.
1078 BOOL WINAPI
wglQueryPbufferARB( HPBUFFERARB handle
, int attrib
, int *value
)
1080 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1083 if (!ptr
) return FALSE
;
1084 ret
= ptr
->funcs
->ext
.p_wglQueryPbufferARB( ptr
->u
.pbuffer
, attrib
, value
);
1085 release_handle_ptr( ptr
);
1089 /***********************************************************************
1090 * wglUseFontBitmaps_common
1092 static BOOL
wglUseFontBitmaps_common( HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
, BOOL unicode
)
1094 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1096 unsigned int glyph
, size
= 0;
1097 void *bitmap
= NULL
, *gl_bitmap
= NULL
;
1101 funcs
->gl
.p_glGetIntegerv(GL_UNPACK_ALIGNMENT
, &org_alignment
);
1102 funcs
->gl
.p_glPixelStorei(GL_UNPACK_ALIGNMENT
, 4);
1104 for (glyph
= first
; glyph
< first
+ count
; glyph
++) {
1105 unsigned int needed_size
, height
, width
, width_int
;
1108 needed_size
= GetGlyphOutlineW(hdc
, glyph
, GGO_BITMAP
, &gm
, 0, NULL
, &identity
);
1110 needed_size
= GetGlyphOutlineA(hdc
, glyph
, GGO_BITMAP
, &gm
, 0, NULL
, &identity
);
1112 TRACE("Glyph: %3d / List: %d size %d\n", glyph
, listBase
, needed_size
);
1113 if (needed_size
== GDI_ERROR
) {
1118 if (needed_size
> size
) {
1120 HeapFree(GetProcessHeap(), 0, bitmap
);
1121 HeapFree(GetProcessHeap(), 0, gl_bitmap
);
1122 bitmap
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, size
);
1123 gl_bitmap
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, size
);
1125 if (needed_size
!= 0) {
1127 ret
= (GetGlyphOutlineW(hdc
, glyph
, GGO_BITMAP
, &gm
,
1128 size
, bitmap
, &identity
) != GDI_ERROR
);
1130 ret
= (GetGlyphOutlineA(hdc
, glyph
, GGO_BITMAP
, &gm
,
1131 size
, bitmap
, &identity
) != GDI_ERROR
);
1135 if (TRACE_ON(wgl
)) {
1136 unsigned int bitmask
;
1137 unsigned char *bitmap_
= bitmap
;
1139 TRACE(" - bbox: %d x %d\n", gm
.gmBlackBoxX
, gm
.gmBlackBoxY
);
1140 TRACE(" - origin: (%d, %d)\n", gm
.gmptGlyphOrigin
.x
, gm
.gmptGlyphOrigin
.y
);
1141 TRACE(" - increment: %d - %d\n", gm
.gmCellIncX
, gm
.gmCellIncY
);
1142 if (needed_size
!= 0) {
1143 TRACE(" - bitmap:\n");
1144 for (height
= 0; height
< gm
.gmBlackBoxY
; height
++) {
1146 for (width
= 0, bitmask
= 0x80; width
< gm
.gmBlackBoxX
; width
++, bitmask
>>= 1) {
1151 if (*bitmap_
& bitmask
)
1156 bitmap_
+= (4 - ((UINT_PTR
)bitmap_
& 0x03));
1162 /* In OpenGL, the bitmap is drawn from the bottom to the top... So we need to invert the
1163 * glyph for it to be drawn properly.
1165 if (needed_size
!= 0) {
1166 width_int
= (gm
.gmBlackBoxX
+ 31) / 32;
1167 for (height
= 0; height
< gm
.gmBlackBoxY
; height
++) {
1168 for (width
= 0; width
< width_int
; width
++) {
1169 ((int *) gl_bitmap
)[(gm
.gmBlackBoxY
- height
- 1) * width_int
+ width
] =
1170 ((int *) bitmap
)[height
* width_int
+ width
];
1175 funcs
->gl
.p_glNewList(listBase
++, GL_COMPILE
);
1176 if (needed_size
!= 0) {
1177 funcs
->gl
.p_glBitmap(gm
.gmBlackBoxX
, gm
.gmBlackBoxY
,
1178 0 - gm
.gmptGlyphOrigin
.x
, (int) gm
.gmBlackBoxY
- gm
.gmptGlyphOrigin
.y
,
1179 gm
.gmCellIncX
, gm
.gmCellIncY
,
1182 /* This is the case of 'empty' glyphs like the space character */
1183 funcs
->gl
.p_glBitmap(0, 0, 0, 0, gm
.gmCellIncX
, gm
.gmCellIncY
, NULL
);
1185 funcs
->gl
.p_glEndList();
1188 funcs
->gl
.p_glPixelStorei(GL_UNPACK_ALIGNMENT
, org_alignment
);
1189 HeapFree(GetProcessHeap(), 0, bitmap
);
1190 HeapFree(GetProcessHeap(), 0, gl_bitmap
);
1194 /***********************************************************************
1195 * wglUseFontBitmapsA (OPENGL32.@)
1197 BOOL WINAPI
wglUseFontBitmapsA(HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
)
1199 return wglUseFontBitmaps_common( hdc
, first
, count
, listBase
, FALSE
);
1202 /***********************************************************************
1203 * wglUseFontBitmapsW (OPENGL32.@)
1205 BOOL WINAPI
wglUseFontBitmapsW(HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
)
1207 return wglUseFontBitmaps_common( hdc
, first
, count
, listBase
, TRUE
);
1210 static void fixed_to_double(POINTFX fixed
, UINT em_size
, GLdouble vertex
[3])
1212 vertex
[0] = (fixed
.x
.value
+ (GLdouble
)fixed
.x
.fract
/ (1 << 16)) / em_size
;
1213 vertex
[1] = (fixed
.y
.value
+ (GLdouble
)fixed
.y
.fract
/ (1 << 16)) / em_size
;
1217 static void WINAPI
tess_callback_vertex(GLvoid
*vertex
)
1219 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1220 GLdouble
*dbl
= vertex
;
1221 TRACE("%f, %f, %f\n", dbl
[0], dbl
[1], dbl
[2]);
1222 funcs
->gl
.p_glVertex3dv(vertex
);
1225 static void WINAPI
tess_callback_begin(GLenum which
)
1227 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1228 TRACE("%d\n", which
);
1229 funcs
->gl
.p_glBegin(which
);
1232 static void WINAPI
tess_callback_end(void)
1234 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1236 funcs
->gl
.p_glEnd();
1239 typedef struct _bezier_vector
{
1244 static double bezier_deviation_squared(const bezier_vector
*p
)
1246 bezier_vector deviation
;
1247 bezier_vector vertex
;
1252 vertex
.x
= (p
[0].x
+ p
[1].x
*2 + p
[2].x
)/4 - p
[0].x
;
1253 vertex
.y
= (p
[0].y
+ p
[1].y
*2 + p
[2].y
)/4 - p
[0].y
;
1255 base
.x
= p
[2].x
- p
[0].x
;
1256 base
.y
= p
[2].y
- p
[0].y
;
1258 base_length
= sqrt(base
.x
*base
.x
+ base
.y
*base
.y
);
1259 base
.x
/= base_length
;
1260 base
.y
/= base_length
;
1262 dot
= base
.x
*vertex
.x
+ base
.y
*vertex
.y
;
1263 dot
= min(max(dot
, 0.0), base_length
);
1267 deviation
.x
= vertex
.x
-base
.x
;
1268 deviation
.y
= vertex
.y
-base
.y
;
1270 return deviation
.x
*deviation
.x
+ deviation
.y
*deviation
.y
;
1273 static int bezier_approximate(const bezier_vector
*p
, bezier_vector
*points
, FLOAT deviation
)
1275 bezier_vector first_curve
[3];
1276 bezier_vector second_curve
[3];
1277 bezier_vector vertex
;
1280 if(bezier_deviation_squared(p
) <= deviation
*deviation
)
1287 vertex
.x
= (p
[0].x
+ p
[1].x
*2 + p
[2].x
)/4;
1288 vertex
.y
= (p
[0].y
+ p
[1].y
*2 + p
[2].y
)/4;
1290 first_curve
[0] = p
[0];
1291 first_curve
[1].x
= (p
[0].x
+ p
[1].x
)/2;
1292 first_curve
[1].y
= (p
[0].y
+ p
[1].y
)/2;
1293 first_curve
[2] = vertex
;
1295 second_curve
[0] = vertex
;
1296 second_curve
[1].x
= (p
[2].x
+ p
[1].x
)/2;
1297 second_curve
[1].y
= (p
[2].y
+ p
[1].y
)/2;
1298 second_curve
[2] = p
[2];
1300 total_vertices
= bezier_approximate(first_curve
, points
, deviation
);
1302 points
+= total_vertices
;
1303 total_vertices
+= bezier_approximate(second_curve
, points
, deviation
);
1304 return total_vertices
;
1307 /***********************************************************************
1308 * wglUseFontOutlines_common
1310 static BOOL
wglUseFontOutlines_common(HDC hdc
,
1317 LPGLYPHMETRICSFLOAT lpgmf
,
1320 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1322 GLUtesselator
*tess
= NULL
;
1324 HFONT old_font
, unscaled_font
;
1325 UINT em_size
= 1024;
1328 TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc
, first
, count
,
1329 listBase
, deviation
, extrusion
, format
, lpgmf
, unicode
? "W" : "A");
1331 if(deviation
<= 0.0)
1332 deviation
= 1.0/em_size
;
1334 if(format
== WGL_FONT_POLYGONS
)
1336 tess
= gluNewTess();
1339 ERR("glu32 is required for this function but isn't available\n");
1342 gluTessCallback(tess
, GLU_TESS_VERTEX
, (void *)tess_callback_vertex
);
1343 gluTessCallback(tess
, GLU_TESS_BEGIN
, (void *)tess_callback_begin
);
1344 gluTessCallback(tess
, GLU_TESS_END
, tess_callback_end
);
1347 GetObjectW(GetCurrentObject(hdc
, OBJ_FONT
), sizeof(lf
), &lf
);
1348 rc
.left
= rc
.right
= rc
.bottom
= 0;
1350 DPtoLP(hdc
, (POINT
*)&rc
, 2);
1351 lf
.lfHeight
= -abs(rc
.top
- rc
.bottom
);
1352 lf
.lfOrientation
= lf
.lfEscapement
= 0;
1353 unscaled_font
= CreateFontIndirectW(&lf
);
1354 old_font
= SelectObject(hdc
, unscaled_font
);
1356 for (glyph
= first
; glyph
< first
+ count
; glyph
++)
1361 TTPOLYGONHEADER
*pph
;
1363 GLdouble
*vertices
= NULL
;
1364 int vertex_total
= -1;
1367 needed
= GetGlyphOutlineW(hdc
, glyph
, GGO_NATIVE
, &gm
, 0, NULL
, &identity
);
1369 needed
= GetGlyphOutlineA(hdc
, glyph
, GGO_NATIVE
, &gm
, 0, NULL
, &identity
);
1371 if(needed
== GDI_ERROR
)
1374 buf
= HeapAlloc(GetProcessHeap(), 0, needed
);
1377 GetGlyphOutlineW(hdc
, glyph
, GGO_NATIVE
, &gm
, needed
, buf
, &identity
);
1379 GetGlyphOutlineA(hdc
, glyph
, GGO_NATIVE
, &gm
, needed
, buf
, &identity
);
1381 TRACE("glyph %d\n", glyph
);
1385 lpgmf
->gmfBlackBoxX
= (float)gm
.gmBlackBoxX
/ em_size
;
1386 lpgmf
->gmfBlackBoxY
= (float)gm
.gmBlackBoxY
/ em_size
;
1387 lpgmf
->gmfptGlyphOrigin
.x
= (float)gm
.gmptGlyphOrigin
.x
/ em_size
;
1388 lpgmf
->gmfptGlyphOrigin
.y
= (float)gm
.gmptGlyphOrigin
.y
/ em_size
;
1389 lpgmf
->gmfCellIncX
= (float)gm
.gmCellIncX
/ em_size
;
1390 lpgmf
->gmfCellIncY
= (float)gm
.gmCellIncY
/ em_size
;
1392 TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf
->gmfBlackBoxX
, lpgmf
->gmfBlackBoxY
,
1393 lpgmf
->gmfptGlyphOrigin
.x
, lpgmf
->gmfptGlyphOrigin
.y
, lpgmf
->gmfCellIncX
, lpgmf
->gmfCellIncY
);
1397 funcs
->gl
.p_glNewList(listBase
++, GL_COMPILE
);
1398 funcs
->gl
.p_glFrontFace(GL_CCW
);
1399 if(format
== WGL_FONT_POLYGONS
)
1401 funcs
->gl
.p_glNormal3d(0.0, 0.0, 1.0);
1402 gluTessNormal(tess
, 0, 0, 1);
1403 gluTessBeginPolygon(tess
, NULL
);
1408 if(vertex_total
!= -1)
1409 vertices
= HeapAlloc(GetProcessHeap(), 0, vertex_total
* 3 * sizeof(GLdouble
));
1412 pph
= (TTPOLYGONHEADER
*)buf
;
1413 while((BYTE
*)pph
< buf
+ needed
)
1415 GLdouble previous
[3];
1416 fixed_to_double(pph
->pfxStart
, em_size
, previous
);
1419 TRACE("\tstart %d, %d\n", pph
->pfxStart
.x
.value
, pph
->pfxStart
.y
.value
);
1421 if(format
== WGL_FONT_POLYGONS
)
1422 gluTessBeginContour(tess
);
1424 funcs
->gl
.p_glBegin(GL_LINE_LOOP
);
1428 fixed_to_double(pph
->pfxStart
, em_size
, vertices
);
1429 if(format
== WGL_FONT_POLYGONS
)
1430 gluTessVertex(tess
, vertices
, vertices
);
1432 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1437 ppc
= (TTPOLYCURVE
*)((char*)pph
+ sizeof(*pph
));
1438 while((char*)ppc
< (char*)pph
+ pph
->cb
)
1443 switch(ppc
->wType
) {
1445 for(i
= 0; i
< ppc
->cpfx
; i
++)
1449 TRACE("\t\tline to %d, %d\n",
1450 ppc
->apfx
[i
].x
.value
, ppc
->apfx
[i
].y
.value
);
1451 fixed_to_double(ppc
->apfx
[i
], em_size
, vertices
);
1452 if(format
== WGL_FONT_POLYGONS
)
1453 gluTessVertex(tess
, vertices
, vertices
);
1455 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1458 fixed_to_double(ppc
->apfx
[i
], em_size
, previous
);
1463 case TT_PRIM_QSPLINE
:
1464 for(i
= 0; i
< ppc
->cpfx
-1; i
++)
1466 bezier_vector curve
[3];
1467 bezier_vector
*points
;
1468 GLdouble curve_vertex
[3];
1471 TRACE("\t\tcurve %d,%d %d,%d\n",
1472 ppc
->apfx
[i
].x
.value
, ppc
->apfx
[i
].y
.value
,
1473 ppc
->apfx
[i
+ 1].x
.value
, ppc
->apfx
[i
+ 1].y
.value
);
1475 curve
[0].x
= previous
[0];
1476 curve
[0].y
= previous
[1];
1477 fixed_to_double(ppc
->apfx
[i
], em_size
, curve_vertex
);
1478 curve
[1].x
= curve_vertex
[0];
1479 curve
[1].y
= curve_vertex
[1];
1480 fixed_to_double(ppc
->apfx
[i
+ 1], em_size
, curve_vertex
);
1481 curve
[2].x
= curve_vertex
[0];
1482 curve
[2].y
= curve_vertex
[1];
1485 curve
[2].x
= (curve
[1].x
+ curve
[2].x
)/2;
1486 curve
[2].y
= (curve
[1].y
+ curve
[2].y
)/2;
1488 num
= bezier_approximate(curve
, NULL
, deviation
);
1489 points
= HeapAlloc(GetProcessHeap(), 0, num
*sizeof(bezier_vector
));
1490 num
= bezier_approximate(curve
, points
, deviation
);
1491 vertex_total
+= num
;
1494 for(j
=0; j
<num
; j
++)
1496 TRACE("\t\t\tvertex at %f,%f\n", points
[j
].x
, points
[j
].y
);
1497 vertices
[0] = points
[j
].x
;
1498 vertices
[1] = points
[j
].y
;
1500 if(format
== WGL_FONT_POLYGONS
)
1501 gluTessVertex(tess
, vertices
, vertices
);
1503 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1507 HeapFree(GetProcessHeap(), 0, points
);
1508 previous
[0] = curve
[2].x
;
1509 previous
[1] = curve
[2].y
;
1513 ERR("\t\tcurve type = %d\n", ppc
->wType
);
1514 if(format
== WGL_FONT_POLYGONS
)
1515 gluTessEndContour(tess
);
1517 funcs
->gl
.p_glEnd();
1521 ppc
= (TTPOLYCURVE
*)((char*)ppc
+ sizeof(*ppc
) +
1522 (ppc
->cpfx
- 1) * sizeof(POINTFX
));
1524 if(format
== WGL_FONT_POLYGONS
)
1525 gluTessEndContour(tess
);
1527 funcs
->gl
.p_glEnd();
1528 pph
= (TTPOLYGONHEADER
*)((char*)pph
+ pph
->cb
);
1533 if(format
== WGL_FONT_POLYGONS
)
1534 gluTessEndPolygon(tess
);
1535 funcs
->gl
.p_glTranslated((GLdouble
)gm
.gmCellIncX
/ em_size
, (GLdouble
)gm
.gmCellIncY
/ em_size
, 0.0);
1536 funcs
->gl
.p_glEndList();
1537 HeapFree(GetProcessHeap(), 0, buf
);
1538 HeapFree(GetProcessHeap(), 0, vertices
);
1542 DeleteObject(SelectObject(hdc
, old_font
));
1543 if(format
== WGL_FONT_POLYGONS
)
1544 gluDeleteTess(tess
);
1549 /***********************************************************************
1550 * wglUseFontOutlinesA (OPENGL32.@)
1552 BOOL WINAPI
wglUseFontOutlinesA(HDC hdc
,
1559 LPGLYPHMETRICSFLOAT lpgmf
)
1561 return wglUseFontOutlines_common(hdc
, first
, count
, listBase
, deviation
, extrusion
, format
, lpgmf
, FALSE
);
1564 /***********************************************************************
1565 * wglUseFontOutlinesW (OPENGL32.@)
1567 BOOL WINAPI
wglUseFontOutlinesW(HDC hdc
,
1574 LPGLYPHMETRICSFLOAT lpgmf
)
1576 return wglUseFontOutlines_common(hdc
, first
, count
, listBase
, deviation
, extrusion
, format
, lpgmf
, TRUE
);
1579 /***********************************************************************
1580 * glDebugEntry (OPENGL32.@)
1582 GLint WINAPI
glDebugEntry( GLint unknown1
, GLint unknown2
)
1587 static GLubyte
*filter_extensions_list(const char *extensions
, const char *disabled
)
1592 p
= str
= HeapAlloc(GetProcessHeap(), 0, strlen(extensions
) + 2);
1596 TRACE( "GL_EXTENSIONS:\n" );
1600 while (*extensions
== ' ')
1604 if (!(end
= strchr(extensions
, ' ')))
1605 end
= extensions
+ strlen(extensions
);
1606 memcpy(p
, extensions
, end
- extensions
);
1607 p
[end
- extensions
] = 0;
1608 if (!has_extension(disabled
, p
, strlen(p
)))
1610 TRACE("++ %s\n", p
);
1611 p
+= end
- extensions
;
1616 TRACE("-- %s (disabled by config)\n", p
);
1621 return (GLubyte
*)str
;
1624 static GLuint
*filter_extensions_index(const char *disabled
)
1626 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1627 const char *ext
, *end
, *gl_ext
;
1628 GLuint
*disabled_exts
, *new_disabled_exts
;
1629 unsigned int i
= 0, j
, disabled_size
;
1630 GLint extensions_count
;
1632 if (!funcs
->ext
.p_glGetStringi
)
1634 void **func_ptr
= (void **)&funcs
->ext
.p_glGetStringi
;
1636 *func_ptr
= funcs
->wgl
.p_wglGetProcAddress("glGetStringi");
1637 if (!funcs
->ext
.p_glGetStringi
)
1641 funcs
->gl
.p_glGetIntegerv(GL_NUM_EXTENSIONS
, &extensions_count
);
1643 disabled_exts
= HeapAlloc(GetProcessHeap(), 0, disabled_size
* sizeof(*disabled_exts
));
1647 TRACE( "GL_EXTENSIONS:\n" );
1649 for (j
= 0; j
< extensions_count
; ++j
)
1651 gl_ext
= (const char *)funcs
->ext
.p_glGetStringi(GL_EXTENSIONS
, j
);
1659 TRACE("++ %s\n", gl_ext
);
1662 if (!(end
= strchr(ext
, ' ')))
1663 end
= ext
+ strlen(ext
);
1665 if (!strncmp(gl_ext
, ext
, end
- ext
) && !gl_ext
[end
- ext
])
1667 if (i
+ 1 == disabled_size
)
1670 new_disabled_exts
= HeapReAlloc(GetProcessHeap(), 0, disabled_exts
,
1671 disabled_size
* sizeof(*disabled_exts
));
1672 if (!new_disabled_exts
)
1674 disabled_exts
[i
] = ~0u;
1675 return disabled_exts
;
1677 disabled_exts
= new_disabled_exts
;
1679 TRACE("-- %s (disabled by config)\n", gl_ext
);
1680 disabled_exts
[i
++] = j
;
1686 disabled_exts
[i
] = ~0u;
1687 return disabled_exts
;
1690 /* build the extension string by filtering out the disabled extensions */
1691 static BOOL
filter_extensions(const char *extensions
, GLubyte
**exts_list
, GLuint
**disabled_exts
)
1693 static const char *disabled
;
1701 /* @@ Wine registry key: HKCU\Software\Wine\OpenGL */
1702 if (!RegOpenKeyA( HKEY_CURRENT_USER
, "Software\\Wine\\OpenGL", &hkey
))
1704 if (!RegQueryValueExA( hkey
, "DisabledExtensions", 0, NULL
, NULL
, &size
))
1706 str
= HeapAlloc( GetProcessHeap(), 0, size
);
1707 if (RegQueryValueExA( hkey
, "DisabledExtensions", 0, NULL
, (BYTE
*)str
, &size
)) *str
= 0;
1709 RegCloseKey( hkey
);
1713 if (InterlockedCompareExchangePointer( (void **)&disabled
, str
, NULL
))
1714 HeapFree( GetProcessHeap(), 0, str
);
1722 if (extensions
&& !*exts_list
)
1723 *exts_list
= filter_extensions_list(extensions
, disabled
);
1725 if (!*disabled_exts
)
1726 *disabled_exts
= filter_extensions_index(disabled
);
1728 return (exts_list
&& *exts_list
) || *disabled_exts
;
1731 /***********************************************************************
1732 * glGetString (OPENGL32.@)
1734 const GLubyte
* WINAPI
glGetString( GLenum name
)
1736 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1737 const GLubyte
*ret
= funcs
->gl
.p_glGetString( name
);
1739 if (name
== GL_EXTENSIONS
&& ret
)
1741 struct wgl_handle
*ptr
= get_current_context_ptr();
1742 if (ptr
->u
.context
->extensions
||
1743 filter_extensions((const char *)ret
, &ptr
->u
.context
->extensions
, &ptr
->u
.context
->disabled_exts
))
1744 ret
= ptr
->u
.context
->extensions
;
1749 /***********************************************************************
1750 * OpenGL initialisation routine
1752 BOOL WINAPI
DllMain( HINSTANCE hinst
, DWORD reason
, LPVOID reserved
)
1756 case DLL_PROCESS_ATTACH
:
1757 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
1759 case DLL_THREAD_ATTACH
:
1760 NtCurrentTeb()->glTable
= &null_opengl_funcs
;