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"
28 #include "opengl_ext.h"
37 #define WGL_WGLEXT_PROTOTYPES
38 #include "wine/wglext.h"
39 #include "wine/gdi_driver.h"
40 #include "wine/wgl_driver.h"
42 #include "wine/debug.h"
44 WINE_DEFAULT_DEBUG_CHANNEL(wgl
);
45 WINE_DECLARE_DEBUG_CHANNEL(fps
);
47 extern struct opengl_funcs null_opengl_funcs
;
49 /* handle management */
51 #define MAX_WGL_HANDLES 1024
55 HANDLE_PBUFFER
= 0 << 12,
56 HANDLE_CONTEXT
= 1 << 12,
57 HANDLE_CONTEXT_V3
= 3 << 12,
58 HANDLE_TYPE_MASK
= 15 << 12
63 DWORD tid
; /* thread that the context is current in */
64 HDC draw_dc
; /* current drawing DC */
65 HDC read_dc
; /* current reading DC */
66 GLubyte
*extensions
; /* extension string */
67 GLuint
*disabled_exts
; /* indices of disabled extensions */
68 struct wgl_context
*drv_ctx
; /* driver context */
74 struct opengl_funcs
*funcs
;
77 struct opengl_context
*context
; /* for HANDLE_CONTEXT */
78 struct wgl_pbuffer
*pbuffer
; /* for HANDLE_PBUFFER */
79 struct wgl_handle
*next
; /* for free handles */
83 static struct wgl_handle wgl_handles
[MAX_WGL_HANDLES
];
84 static struct wgl_handle
*next_free
;
85 static unsigned int handle_count
;
87 static CRITICAL_SECTION wgl_section
;
88 static CRITICAL_SECTION_DEBUG critsect_debug
=
91 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
92 0, 0, { (DWORD_PTR
)(__FILE__
": wgl_section") }
94 static CRITICAL_SECTION wgl_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
96 static const MAT2 identity
= { {0,1},{0,0},{0,0},{0,1} };
98 static inline struct opengl_funcs
*get_dc_funcs( HDC hdc
)
100 struct opengl_funcs
*funcs
= __wine_get_wgl_driver( hdc
, WINE_WGL_DRIVER_VERSION
);
101 if (!funcs
) SetLastError( ERROR_INVALID_HANDLE
);
102 else if (funcs
== (void *)-1) funcs
= &null_opengl_funcs
;
106 static inline HANDLE
next_handle( struct wgl_handle
*ptr
, enum wgl_handle_type type
)
108 WORD generation
= HIWORD( ptr
->handle
) + 1;
109 if (!generation
) generation
++;
110 ptr
->handle
= MAKELONG( ptr
- wgl_handles
, generation
) | type
;
111 return ULongToHandle( ptr
->handle
);
114 /* the current context is assumed valid and doesn't need locking */
115 static inline struct wgl_handle
*get_current_context_ptr(void)
117 if (!NtCurrentTeb()->glCurrentRC
) return NULL
;
118 return &wgl_handles
[LOWORD(NtCurrentTeb()->glCurrentRC
) & ~HANDLE_TYPE_MASK
];
121 static struct wgl_handle
*get_handle_ptr( HANDLE handle
, enum wgl_handle_type type
)
123 unsigned int index
= LOWORD( handle
) & ~HANDLE_TYPE_MASK
;
125 EnterCriticalSection( &wgl_section
);
126 if (index
< handle_count
&& ULongToHandle(wgl_handles
[index
].handle
) == handle
)
127 return &wgl_handles
[index
];
129 LeaveCriticalSection( &wgl_section
);
130 SetLastError( ERROR_INVALID_HANDLE
);
134 static void release_handle_ptr( struct wgl_handle
*ptr
)
136 if (ptr
) LeaveCriticalSection( &wgl_section
);
139 static HANDLE
alloc_handle( enum wgl_handle_type type
, struct opengl_funcs
*funcs
, void *user_ptr
)
142 struct wgl_handle
*ptr
= NULL
;
144 EnterCriticalSection( &wgl_section
);
145 if ((ptr
= next_free
))
146 next_free
= next_free
->u
.next
;
147 else if (handle_count
< MAX_WGL_HANDLES
)
148 ptr
= &wgl_handles
[handle_count
++];
153 ptr
->u
.context
= user_ptr
;
154 handle
= next_handle( ptr
, type
);
156 else SetLastError( ERROR_NOT_ENOUGH_MEMORY
);
157 LeaveCriticalSection( &wgl_section
);
161 static void free_handle_ptr( struct wgl_handle
*ptr
)
163 ptr
->handle
|= 0xffff;
164 ptr
->u
.next
= next_free
;
167 LeaveCriticalSection( &wgl_section
);
170 static inline enum wgl_handle_type
get_current_context_type(void)
172 if (!NtCurrentTeb()->glCurrentRC
) return HANDLE_CONTEXT
;
173 return LOWORD(NtCurrentTeb()->glCurrentRC
) & HANDLE_TYPE_MASK
;
176 /***********************************************************************
177 * wglCopyContext (OPENGL32.@)
179 BOOL WINAPI
wglCopyContext(HGLRC hglrcSrc
, HGLRC hglrcDst
, UINT mask
)
181 struct wgl_handle
*src
, *dst
;
184 if (!(src
= get_handle_ptr( hglrcSrc
, HANDLE_CONTEXT
))) return FALSE
;
185 if ((dst
= get_handle_ptr( hglrcDst
, HANDLE_CONTEXT
)))
187 if (src
->funcs
!= dst
->funcs
) SetLastError( ERROR_INVALID_HANDLE
);
188 else ret
= src
->funcs
->wgl
.p_wglCopyContext( src
->u
.context
->drv_ctx
,
189 dst
->u
.context
->drv_ctx
, mask
);
191 release_handle_ptr( dst
);
192 release_handle_ptr( src
);
196 /***********************************************************************
197 * wglDeleteContext (OPENGL32.@)
199 BOOL WINAPI
wglDeleteContext(HGLRC hglrc
)
201 struct wgl_handle
*ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
);
203 if (!ptr
) return FALSE
;
205 if (ptr
->u
.context
->tid
&& ptr
->u
.context
->tid
!= GetCurrentThreadId())
207 SetLastError( ERROR_BUSY
);
208 release_handle_ptr( ptr
);
211 if (hglrc
== NtCurrentTeb()->glCurrentRC
) wglMakeCurrent( 0, 0 );
212 ptr
->funcs
->wgl
.p_wglDeleteContext( ptr
->u
.context
->drv_ctx
);
213 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
->disabled_exts
);
214 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
->extensions
);
215 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
);
216 free_handle_ptr( ptr
);
220 /***********************************************************************
221 * wglMakeCurrent (OPENGL32.@)
223 BOOL WINAPI
wglMakeCurrent(HDC hdc
, HGLRC hglrc
)
226 struct wgl_handle
*ptr
, *prev
= get_current_context_ptr();
230 if (!(ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
))) return FALSE
;
231 if (!ptr
->u
.context
->tid
|| ptr
->u
.context
->tid
== GetCurrentThreadId())
233 ret
= ptr
->funcs
->wgl
.p_wglMakeCurrent( hdc
, ptr
->u
.context
->drv_ctx
);
236 if (prev
) prev
->u
.context
->tid
= 0;
237 ptr
->u
.context
->tid
= GetCurrentThreadId();
238 ptr
->u
.context
->draw_dc
= hdc
;
239 ptr
->u
.context
->read_dc
= hdc
;
240 NtCurrentTeb()->glCurrentRC
= hglrc
;
241 NtCurrentTeb()->glTable
= ptr
->funcs
;
246 SetLastError( ERROR_BUSY
);
249 release_handle_ptr( ptr
);
253 if (!prev
->funcs
->wgl
.p_wglMakeCurrent( 0, NULL
)) return FALSE
;
254 prev
->u
.context
->tid
= 0;
255 NtCurrentTeb()->glCurrentRC
= 0;
256 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
260 SetLastError( ERROR_INVALID_HANDLE
);
266 /***********************************************************************
267 * wglCreateContextAttribsARB
269 * Provided by the WGL_ARB_create_context extension.
271 HGLRC WINAPI
wglCreateContextAttribsARB( HDC hdc
, HGLRC share
, const int *attribs
)
274 struct wgl_context
*drv_ctx
;
275 struct wgl_handle
*share_ptr
= NULL
;
276 struct opengl_context
*context
;
277 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
281 SetLastError( ERROR_DC_NOT_FOUND
);
284 if (!funcs
->ext
.p_wglCreateContextAttribsARB
) return 0;
285 if (share
&& !(share_ptr
= get_handle_ptr( share
, HANDLE_CONTEXT
)))
287 SetLastError( ERROR_INVALID_OPERATION
);
290 if ((drv_ctx
= funcs
->ext
.p_wglCreateContextAttribsARB( hdc
,
291 share_ptr
? share_ptr
->u
.context
->drv_ctx
: NULL
, attribs
)))
293 if ((context
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*context
) )))
295 enum wgl_handle_type type
= HANDLE_CONTEXT
;
301 if (attribs
[0] == WGL_CONTEXT_MAJOR_VERSION_ARB
)
304 type
= HANDLE_CONTEXT_V3
;
311 context
->drv_ctx
= drv_ctx
;
312 if (!(ret
= alloc_handle( type
, funcs
, context
)))
313 HeapFree( GetProcessHeap(), 0, context
);
315 if (!ret
) funcs
->wgl
.p_wglDeleteContext( drv_ctx
);
317 release_handle_ptr( share_ptr
);
322 /***********************************************************************
323 * wglMakeContextCurrentARB
325 * Provided by the WGL_ARB_make_current_read extension.
327 BOOL WINAPI
wglMakeContextCurrentARB( HDC draw_hdc
, HDC read_hdc
, HGLRC hglrc
)
330 struct wgl_handle
*ptr
, *prev
= get_current_context_ptr();
334 if (!(ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
))) return FALSE
;
335 if (!ptr
->u
.context
->tid
|| ptr
->u
.context
->tid
== GetCurrentThreadId())
337 ret
= (ptr
->funcs
->ext
.p_wglMakeContextCurrentARB
&&
338 ptr
->funcs
->ext
.p_wglMakeContextCurrentARB( draw_hdc
, read_hdc
,
339 ptr
->u
.context
->drv_ctx
));
342 if (prev
) prev
->u
.context
->tid
= 0;
343 ptr
->u
.context
->tid
= GetCurrentThreadId();
344 ptr
->u
.context
->draw_dc
= draw_hdc
;
345 ptr
->u
.context
->read_dc
= read_hdc
;
346 NtCurrentTeb()->glCurrentRC
= hglrc
;
347 NtCurrentTeb()->glTable
= ptr
->funcs
;
352 SetLastError( ERROR_BUSY
);
355 release_handle_ptr( ptr
);
359 if (!prev
->funcs
->wgl
.p_wglMakeCurrent( 0, NULL
)) return FALSE
;
360 prev
->u
.context
->tid
= 0;
361 NtCurrentTeb()->glCurrentRC
= 0;
362 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
367 /***********************************************************************
368 * wglGetCurrentReadDCARB
370 * Provided by the WGL_ARB_make_current_read extension.
372 HDC WINAPI
wglGetCurrentReadDCARB(void)
374 struct wgl_handle
*ptr
= get_current_context_ptr();
377 return ptr
->u
.context
->read_dc
;
380 /***********************************************************************
381 * wglShareLists (OPENGL32.@)
383 BOOL WINAPI
wglShareLists(HGLRC hglrcSrc
, HGLRC hglrcDst
)
386 struct wgl_handle
*src
, *dst
;
388 if (!(src
= get_handle_ptr( hglrcSrc
, HANDLE_CONTEXT
))) return FALSE
;
389 if ((dst
= get_handle_ptr( hglrcDst
, HANDLE_CONTEXT
)))
391 if (src
->funcs
!= dst
->funcs
) SetLastError( ERROR_INVALID_HANDLE
);
392 else ret
= src
->funcs
->wgl
.p_wglShareLists( src
->u
.context
->drv_ctx
, dst
->u
.context
->drv_ctx
);
394 release_handle_ptr( dst
);
395 release_handle_ptr( src
);
399 /***********************************************************************
400 * wglGetCurrentDC (OPENGL32.@)
402 HDC WINAPI
wglGetCurrentDC(void)
404 struct wgl_handle
*ptr
= get_current_context_ptr();
407 return ptr
->u
.context
->draw_dc
;
410 /***********************************************************************
411 * wglCreateContext (OPENGL32.@)
413 HGLRC WINAPI
wglCreateContext(HDC hdc
)
416 struct wgl_context
*drv_ctx
;
417 struct opengl_context
*context
;
418 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
420 if (!funcs
) return 0;
421 if (!(drv_ctx
= funcs
->wgl
.p_wglCreateContext( hdc
))) return 0;
422 if ((context
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*context
) )))
424 context
->drv_ctx
= drv_ctx
;
425 if (!(ret
= alloc_handle( HANDLE_CONTEXT
, funcs
, context
)))
426 HeapFree( GetProcessHeap(), 0, context
);
428 if (!ret
) funcs
->wgl
.p_wglDeleteContext( drv_ctx
);
432 /***********************************************************************
433 * wglGetCurrentContext (OPENGL32.@)
435 HGLRC WINAPI
wglGetCurrentContext(void)
437 return NtCurrentTeb()->glCurrentRC
;
440 /***********************************************************************
441 * wglDescribePixelFormat (OPENGL32.@)
443 INT WINAPI
wglDescribePixelFormat(HDC hdc
, INT format
, UINT size
, PIXELFORMATDESCRIPTOR
*descr
)
445 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
446 if (!funcs
) return 0;
447 return funcs
->wgl
.p_wglDescribePixelFormat( hdc
, format
, size
, descr
);
450 /***********************************************************************
451 * wglChoosePixelFormat (OPENGL32.@)
453 INT WINAPI
wglChoosePixelFormat(HDC hdc
, const PIXELFORMATDESCRIPTOR
* ppfd
)
455 PIXELFORMATDESCRIPTOR format
, best
;
456 int i
, count
, best_format
;
457 int bestDBuffer
= -1, bestStereo
= -1;
459 TRACE_(wgl
)( "%p %p: size %u version %u flags %u type %u color %u %u,%u,%u,%u "
460 "accum %u depth %u stencil %u aux %u\n",
461 hdc
, ppfd
, ppfd
->nSize
, ppfd
->nVersion
, ppfd
->dwFlags
, ppfd
->iPixelType
,
462 ppfd
->cColorBits
, ppfd
->cRedBits
, ppfd
->cGreenBits
, ppfd
->cBlueBits
, ppfd
->cAlphaBits
,
463 ppfd
->cAccumBits
, ppfd
->cDepthBits
, ppfd
->cStencilBits
, ppfd
->cAuxBuffers
);
465 count
= wglDescribePixelFormat( hdc
, 0, 0, NULL
);
466 if (!count
) return 0;
470 best
.cAlphaBits
= -1;
471 best
.cColorBits
= -1;
472 best
.cDepthBits
= -1;
473 best
.cStencilBits
= -1;
474 best
.cAuxBuffers
= -1;
476 for (i
= 1; i
<= count
; i
++)
478 if (!wglDescribePixelFormat( hdc
, i
, sizeof(format
), &format
)) continue;
480 if (ppfd
->iPixelType
!= format
.iPixelType
)
482 TRACE( "pixel type mismatch for iPixelFormat=%d\n", i
);
486 /* only use bitmap capable for formats for bitmap rendering */
487 if( (ppfd
->dwFlags
& PFD_DRAW_TO_BITMAP
) != (format
.dwFlags
& PFD_DRAW_TO_BITMAP
))
489 TRACE( "PFD_DRAW_TO_BITMAP mismatch for iPixelFormat=%d\n", i
);
493 /* The behavior of PDF_STEREO/PFD_STEREO_DONTCARE and PFD_DOUBLEBUFFER / PFD_DOUBLEBUFFER_DONTCARE
494 * is not very clear on MSDN. They specify that ChoosePixelFormat tries to match pixel formats
495 * with the flag (PFD_STEREO / PFD_DOUBLEBUFFERING) set. Otherwise it says that it tries to match
496 * formats without the given flag set.
497 * A test on Windows using a Radeon 9500pro on WinXP (the driver doesn't support Stereo)
498 * has indicated that a format without stereo is returned when stereo is unavailable.
499 * So in case PFD_STEREO is set, formats that support it should have priority above formats
500 * without. In case PFD_STEREO_DONTCARE is set, stereo is ignored.
502 * To summarize the following is most likely the correct behavior:
503 * stereo not set -> prefer non-stereo formats, but also accept stereo formats
504 * stereo set -> prefer stereo formats, but also accept non-stereo formats
505 * stereo don't care -> it doesn't matter whether we get stereo or not
507 * In Wine we will treat non-stereo the same way as don't care because it makes
508 * format selection even more complicated and second drivers with Stereo advertise
509 * each format twice anyway.
512 /* Doublebuffer, see the comments above */
513 if (!(ppfd
->dwFlags
& PFD_DOUBLEBUFFER_DONTCARE
))
515 if (((ppfd
->dwFlags
& PFD_DOUBLEBUFFER
) != bestDBuffer
) &&
516 ((format
.dwFlags
& PFD_DOUBLEBUFFER
) == (ppfd
->dwFlags
& PFD_DOUBLEBUFFER
)))
519 if (bestDBuffer
!= -1 && (format
.dwFlags
& PFD_DOUBLEBUFFER
) != bestDBuffer
) continue;
521 else if (!best_format
)
524 /* Stereo, see the comments above. */
525 if (!(ppfd
->dwFlags
& PFD_STEREO_DONTCARE
))
527 if (((ppfd
->dwFlags
& PFD_STEREO
) != bestStereo
) &&
528 ((format
.dwFlags
& PFD_STEREO
) == (ppfd
->dwFlags
& PFD_STEREO
)))
531 if (bestStereo
!= -1 && (format
.dwFlags
& PFD_STEREO
) != bestStereo
) continue;
533 else if (!best_format
)
536 /* Below we will do a number of checks to select the 'best' pixelformat.
537 * We assume the precedence cColorBits > cAlphaBits > cDepthBits > cStencilBits -> cAuxBuffers.
538 * The code works by trying to match the most important options as close as possible.
539 * When a reasonable format is found, we will try to match more options.
540 * It appears (see the opengl32 test) that Windows opengl drivers ignore options
541 * like cColorBits, cAlphaBits and friends if they are set to 0, so they are considered
542 * as DONTCARE. At least Serious Sam TSE relies on this behavior. */
544 if (ppfd
->cColorBits
)
546 if (((ppfd
->cColorBits
> best
.cColorBits
) && (format
.cColorBits
> best
.cColorBits
)) ||
547 ((format
.cColorBits
>= ppfd
->cColorBits
) && (format
.cColorBits
< best
.cColorBits
)))
550 if (best
.cColorBits
!= format
.cColorBits
) /* Do further checks if the format is compatible */
552 TRACE( "color mismatch for iPixelFormat=%d\n", i
);
556 if (ppfd
->cAlphaBits
)
558 if (((ppfd
->cAlphaBits
> best
.cAlphaBits
) && (format
.cAlphaBits
> best
.cAlphaBits
)) ||
559 ((format
.cAlphaBits
>= ppfd
->cAlphaBits
) && (format
.cAlphaBits
< best
.cAlphaBits
)))
562 if (best
.cAlphaBits
!= format
.cAlphaBits
)
564 TRACE( "alpha mismatch for iPixelFormat=%d\n", i
);
568 if (ppfd
->cDepthBits
)
570 if (((ppfd
->cDepthBits
> best
.cDepthBits
) && (format
.cDepthBits
> best
.cDepthBits
)) ||
571 ((format
.cDepthBits
>= ppfd
->cDepthBits
) && (format
.cDepthBits
< best
.cDepthBits
)))
574 if (best
.cDepthBits
!= format
.cDepthBits
)
576 TRACE( "depth mismatch for iPixelFormat=%d\n", i
);
580 if (ppfd
->cStencilBits
)
582 if (((ppfd
->cStencilBits
> best
.cStencilBits
) && (format
.cStencilBits
> best
.cStencilBits
)) ||
583 ((format
.cStencilBits
>= ppfd
->cStencilBits
) && (format
.cStencilBits
< best
.cStencilBits
)))
586 if (best
.cStencilBits
!= format
.cStencilBits
)
588 TRACE( "stencil mismatch for iPixelFormat=%d\n", i
);
592 if (ppfd
->cAuxBuffers
)
594 if (((ppfd
->cAuxBuffers
> best
.cAuxBuffers
) && (format
.cAuxBuffers
> best
.cAuxBuffers
)) ||
595 ((format
.cAuxBuffers
>= ppfd
->cAuxBuffers
) && (format
.cAuxBuffers
< best
.cAuxBuffers
)))
598 if (best
.cAuxBuffers
!= format
.cAuxBuffers
)
600 TRACE( "aux mismatch for iPixelFormat=%d\n", i
);
609 bestDBuffer
= format
.dwFlags
& PFD_DOUBLEBUFFER
;
610 bestStereo
= format
.dwFlags
& PFD_STEREO
;
613 TRACE( "returning %u\n", best_format
);
617 /***********************************************************************
618 * wglGetPixelFormat (OPENGL32.@)
620 INT WINAPI
wglGetPixelFormat(HDC hdc
)
622 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
625 SetLastError( ERROR_INVALID_PIXEL_FORMAT
);
628 return funcs
->wgl
.p_wglGetPixelFormat( hdc
);
631 /***********************************************************************
632 * wglSetPixelFormat(OPENGL32.@)
634 BOOL WINAPI
wglSetPixelFormat( HDC hdc
, INT format
, const PIXELFORMATDESCRIPTOR
*descr
)
636 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
637 if (!funcs
) return FALSE
;
638 return funcs
->wgl
.p_wglSetPixelFormat( hdc
, format
, descr
);
641 /***********************************************************************
642 * wglSwapBuffers (OPENGL32.@)
644 BOOL WINAPI DECLSPEC_HOTPATCH
wglSwapBuffers( HDC hdc
)
646 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
648 if (!funcs
|| !funcs
->wgl
.p_wglSwapBuffers
) return FALSE
;
649 if (!funcs
->wgl
.p_wglSwapBuffers( hdc
)) return FALSE
;
653 static long prev_time
, start_time
;
654 static unsigned long frames
, frames_total
;
656 DWORD time
= GetTickCount();
659 /* every 1.5 seconds */
660 if (time
- prev_time
> 1500)
662 TRACE_(fps
)("@ approx %.2ffps, total %.2ffps\n",
663 1000.0*frames
/(time
- prev_time
), 1000.0*frames_total
/(time
- start_time
));
666 if (start_time
== 0) start_time
= time
;
672 /***********************************************************************
673 * wglCreateLayerContext (OPENGL32.@)
675 HGLRC WINAPI
wglCreateLayerContext(HDC hdc
,
677 TRACE("(%p,%d)\n", hdc
, iLayerPlane
);
679 if (iLayerPlane
== 0) {
680 return wglCreateContext(hdc
);
682 FIXME("no handler for layer %d\n", iLayerPlane
);
687 /***********************************************************************
688 * wglDescribeLayerPlane (OPENGL32.@)
690 BOOL WINAPI
wglDescribeLayerPlane(HDC hdc
,
694 LPLAYERPLANEDESCRIPTOR plpd
) {
695 FIXME("(%p,%d,%d,%d,%p)\n", hdc
, iPixelFormat
, iLayerPlane
, nBytes
, plpd
);
700 /***********************************************************************
701 * wglGetLayerPaletteEntries (OPENGL32.@)
703 int WINAPI
wglGetLayerPaletteEntries(HDC hdc
,
707 const COLORREF
*pcr
) {
708 FIXME("(): stub!\n");
713 static BOOL
filter_extensions(const char *extensions
, GLubyte
**exts_list
, GLuint
**disabled_exts
);
715 void WINAPI
glGetIntegerv(GLenum pname
, GLint
*data
)
717 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
719 TRACE("(%d, %p)\n", pname
, data
);
720 if (pname
== GL_NUM_EXTENSIONS
)
722 struct wgl_handle
*ptr
= get_current_context_ptr();
724 if (ptr
->u
.context
->disabled_exts
||
725 filter_extensions(NULL
, NULL
, &ptr
->u
.context
->disabled_exts
))
727 const GLuint
*disabled_exts
= ptr
->u
.context
->disabled_exts
;
728 GLint count
, disabled_count
= 0;
730 funcs
->gl
.p_glGetIntegerv(pname
, &count
);
731 while (*disabled_exts
++ != ~0u)
733 *data
= count
- disabled_count
;
737 funcs
->gl
.p_glGetIntegerv(pname
, data
);
740 const GLubyte
* WINAPI
glGetStringi(GLenum name
, GLuint index
)
742 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
744 TRACE("(%d, %d)\n", name
, index
);
745 if (!funcs
->ext
.p_glGetStringi
)
747 void **func_ptr
= (void **)&funcs
->ext
.p_glGetStringi
;
749 *func_ptr
= funcs
->wgl
.p_wglGetProcAddress("glGetStringi");
752 if (name
== GL_EXTENSIONS
)
754 struct wgl_handle
*ptr
= get_current_context_ptr();
756 if (ptr
->u
.context
->disabled_exts
||
757 filter_extensions(NULL
, NULL
, &ptr
->u
.context
->disabled_exts
))
759 const GLuint
*disabled_exts
= ptr
->u
.context
->disabled_exts
;
760 unsigned int disabled_count
= 0;
762 while (index
+ disabled_count
>= *disabled_exts
++)
764 return funcs
->ext
.p_glGetStringi(name
, index
+ disabled_count
);
767 return funcs
->ext
.p_glGetStringi(name
, index
);
770 /* check if the extension is present in the list */
771 static BOOL
has_extension( const char *list
, const char *ext
, size_t len
)
777 GLint extensions_count
;
779 glGetIntegerv(GL_NUM_EXTENSIONS
, &extensions_count
);
780 for (i
= 0; i
< extensions_count
; ++i
)
782 gl_ext
= (const char *)glGetStringi(GL_EXTENSIONS
, i
);
783 if (!strncmp(gl_ext
, ext
, len
) && !gl_ext
[len
])
791 while (*list
== ' ') list
++;
792 if (!strncmp( list
, ext
, len
) && (!list
[len
] || list
[len
] == ' ')) return TRUE
;
793 list
= strchr( list
, ' ' );
798 static int compar(const void *elt_a
, const void *elt_b
) {
799 return strcmp(((const OpenGL_extension
*) elt_a
)->name
,
800 ((const OpenGL_extension
*) elt_b
)->name
);
803 /* Check if a GL extension is supported */
804 static BOOL
is_extension_supported(const char* extension
)
806 enum wgl_handle_type type
= get_current_context_type();
807 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
808 const char *gl_ext_string
= NULL
;
811 TRACE("Checking for extension '%s'\n", extension
);
813 if (type
== HANDLE_CONTEXT
)
815 gl_ext_string
= (const char*)glGetString(GL_EXTENSIONS
);
818 ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
823 /* We use the GetProcAddress function from the display driver to retrieve function pointers
824 * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done
825 * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't
826 * require the function to return NULL when an extension isn't found. For this reason we check
827 * if the OpenGL extension required for the function we are looking up is supported. */
829 while ((len
= strcspn(extension
, " ")) != 0)
831 /* Check if the extension is part of the GL extension string to see if it is supported. */
832 if (has_extension(gl_ext_string
, extension
, len
))
835 /* In general an OpenGL function starts as an ARB/EXT extension and at some stage
836 * it becomes part of the core OpenGL library and can be reached without the ARB/EXT
837 * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor.
838 * Check if we are searching for a core GL function */
839 if(strncmp(extension
, "GL_VERSION_", 11) == 0)
841 const GLubyte
*gl_version
= funcs
->gl
.p_glGetString(GL_VERSION
);
842 const char *version
= extension
+ 11; /* Move past 'GL_VERSION_' */
845 ERR("No OpenGL version found!\n");
849 /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function.
850 * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */
851 if( (gl_version
[0] > version
[0]) || ((gl_version
[0] == version
[0]) && (gl_version
[2] >= version
[2])) ) {
854 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]);
857 if (extension
[len
] == ' ') len
++;
864 /***********************************************************************
865 * wglGetProcAddress (OPENGL32.@)
867 PROC WINAPI
wglGetProcAddress( LPCSTR name
)
869 struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
871 OpenGL_extension ext
;
872 const OpenGL_extension
*ext_ret
;
874 if (!name
) return NULL
;
876 /* Without an active context opengl32 doesn't know to what
877 * driver it has to dispatch wglGetProcAddress.
879 if (!get_current_context_ptr())
881 WARN("No active WGL context found\n");
886 ext_ret
= bsearch(&ext
, extension_registry
, extension_registry_size
, sizeof(ext
), compar
);
889 WARN("Function %s unknown\n", name
);
893 func_ptr
= (void **)&funcs
->ext
+ (ext_ret
- extension_registry
);
896 void *driver_func
= funcs
->wgl
.p_wglGetProcAddress( name
);
898 if (!is_extension_supported(ext_ret
->extension
))
901 static const struct { const char *name
, *alt
; } alternatives
[] =
903 { "glCopyTexSubImage3DEXT", "glCopyTexSubImage3D" }, /* needed by RuneScape */
904 { "glVertexAttribDivisor", "glVertexAttribDivisorARB"}, /* needed by Caffeine */
907 for (i
= 0; i
< sizeof(alternatives
)/sizeof(alternatives
[0]); i
++)
909 if (strcmp( name
, alternatives
[i
].name
)) continue;
910 WARN("Extension %s required for %s not supported, trying %s\n",
911 ext_ret
->extension
, name
, alternatives
[i
].alt
);
912 return wglGetProcAddress( alternatives
[i
].alt
);
914 WARN("Extension %s required for %s not supported\n", ext_ret
->extension
, name
);
918 if (driver_func
== NULL
)
920 WARN("Function %s not supported by driver\n", name
);
923 *func_ptr
= driver_func
;
926 TRACE("returning %s -> %p\n", name
, ext_ret
->func
);
927 return ext_ret
->func
;
930 /***********************************************************************
931 * wglRealizeLayerPalette (OPENGL32.@)
933 BOOL WINAPI
wglRealizeLayerPalette(HDC hdc
,
941 /***********************************************************************
942 * wglSetLayerPaletteEntries (OPENGL32.@)
944 int WINAPI
wglSetLayerPaletteEntries(HDC hdc
,
948 const COLORREF
*pcr
) {
949 FIXME("(): stub!\n");
954 /***********************************************************************
955 * wglSwapLayerBuffers (OPENGL32.@)
957 BOOL WINAPI
wglSwapLayerBuffers(HDC hdc
,
959 TRACE("(%p, %08x)\n", hdc
, fuPlanes
);
961 if (fuPlanes
& WGL_SWAP_MAIN_PLANE
) {
962 if (!wglSwapBuffers( hdc
)) return FALSE
;
963 fuPlanes
&= ~WGL_SWAP_MAIN_PLANE
;
967 WARN("Following layers unhandled: %08x\n", fuPlanes
);
973 /***********************************************************************
974 * wglAllocateMemoryNV
976 * Provided by the WGL_NV_vertex_array_range extension.
978 void * WINAPI
wglAllocateMemoryNV( GLsizei size
, GLfloat readfreq
, GLfloat writefreq
, GLfloat priority
)
980 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
982 if (!funcs
->ext
.p_wglAllocateMemoryNV
) return NULL
;
983 return funcs
->ext
.p_wglAllocateMemoryNV( size
, readfreq
, writefreq
, priority
);
986 /***********************************************************************
989 * Provided by the WGL_NV_vertex_array_range extension.
991 void WINAPI
wglFreeMemoryNV( void *pointer
)
993 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
995 if (funcs
->ext
.p_wglFreeMemoryNV
) funcs
->ext
.p_wglFreeMemoryNV( pointer
);
998 /***********************************************************************
1001 * Provided by the WGL_ARB_render_texture extension.
1003 BOOL WINAPI
wglBindTexImageARB( HPBUFFERARB handle
, int buffer
)
1005 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1008 if (!ptr
) return FALSE
;
1009 ret
= ptr
->funcs
->ext
.p_wglBindTexImageARB( ptr
->u
.pbuffer
, buffer
);
1010 release_handle_ptr( ptr
);
1014 /***********************************************************************
1015 * wglReleaseTexImageARB
1017 * Provided by the WGL_ARB_render_texture extension.
1019 BOOL WINAPI
wglReleaseTexImageARB( HPBUFFERARB handle
, int buffer
)
1021 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1024 if (!ptr
) return FALSE
;
1025 ret
= ptr
->funcs
->ext
.p_wglReleaseTexImageARB( ptr
->u
.pbuffer
, buffer
);
1026 release_handle_ptr( ptr
);
1030 /***********************************************************************
1031 * wglSetPbufferAttribARB
1033 * Provided by the WGL_ARB_render_texture extension.
1035 BOOL WINAPI
wglSetPbufferAttribARB( HPBUFFERARB handle
, const int *attribs
)
1037 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1040 if (!ptr
) return FALSE
;
1041 ret
= ptr
->funcs
->ext
.p_wglSetPbufferAttribARB( ptr
->u
.pbuffer
, attribs
);
1042 release_handle_ptr( ptr
);
1046 /***********************************************************************
1047 * wglChoosePixelFormatARB
1049 * Provided by the WGL_ARB_pixel_format extension.
1051 BOOL WINAPI
wglChoosePixelFormatARB( HDC hdc
, const int *iattribs
, const FLOAT
*fattribs
,
1052 UINT max
, int *formats
, UINT
*count
)
1054 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1056 if (!funcs
|| !funcs
->ext
.p_wglChoosePixelFormatARB
) return FALSE
;
1057 return funcs
->ext
.p_wglChoosePixelFormatARB( hdc
, iattribs
, fattribs
, max
, formats
, count
);
1060 /***********************************************************************
1061 * wglGetPixelFormatAttribivARB
1063 * Provided by the WGL_ARB_pixel_format extension.
1065 BOOL WINAPI
wglGetPixelFormatAttribivARB( HDC hdc
, int format
, int layer
, UINT count
, const int *attribs
,
1068 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1070 if (!funcs
|| !funcs
->ext
.p_wglGetPixelFormatAttribivARB
) return FALSE
;
1071 return funcs
->ext
.p_wglGetPixelFormatAttribivARB( hdc
, format
, layer
, count
, attribs
, values
);
1074 /***********************************************************************
1075 * wglGetPixelFormatAttribfvARB
1077 * Provided by the WGL_ARB_pixel_format extension.
1079 BOOL WINAPI
wglGetPixelFormatAttribfvARB( HDC hdc
, int format
, int layer
, UINT count
, const int *attribs
,
1082 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1084 if (!funcs
|| !funcs
->ext
.p_wglGetPixelFormatAttribfvARB
) return FALSE
;
1085 return funcs
->ext
.p_wglGetPixelFormatAttribfvARB( hdc
, format
, layer
, count
, attribs
, values
);
1088 /***********************************************************************
1089 * wglCreatePbufferARB
1091 * Provided by the WGL_ARB_pbuffer extension.
1093 HPBUFFERARB WINAPI
wglCreatePbufferARB( HDC hdc
, int format
, int width
, int height
, const int *attribs
)
1096 struct wgl_pbuffer
*pbuffer
;
1097 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1099 if (!funcs
|| !funcs
->ext
.p_wglCreatePbufferARB
) return 0;
1100 if (!(pbuffer
= funcs
->ext
.p_wglCreatePbufferARB( hdc
, format
, width
, height
, attribs
))) return 0;
1101 ret
= alloc_handle( HANDLE_PBUFFER
, funcs
, pbuffer
);
1102 if (!ret
) funcs
->ext
.p_wglDestroyPbufferARB( pbuffer
);
1106 /***********************************************************************
1107 * wglGetPbufferDCARB
1109 * Provided by the WGL_ARB_pbuffer extension.
1111 HDC WINAPI
wglGetPbufferDCARB( HPBUFFERARB handle
)
1113 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1117 ret
= ptr
->funcs
->ext
.p_wglGetPbufferDCARB( ptr
->u
.pbuffer
);
1118 release_handle_ptr( ptr
);
1122 /***********************************************************************
1123 * wglReleasePbufferDCARB
1125 * Provided by the WGL_ARB_pbuffer extension.
1127 int WINAPI
wglReleasePbufferDCARB( HPBUFFERARB handle
, HDC hdc
)
1129 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1132 if (!ptr
) return FALSE
;
1133 ret
= ptr
->funcs
->ext
.p_wglReleasePbufferDCARB( ptr
->u
.pbuffer
, hdc
);
1134 release_handle_ptr( ptr
);
1138 /***********************************************************************
1139 * wglDestroyPbufferARB
1141 * Provided by the WGL_ARB_pbuffer extension.
1143 BOOL WINAPI
wglDestroyPbufferARB( HPBUFFERARB handle
)
1145 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1147 if (!ptr
) return FALSE
;
1148 ptr
->funcs
->ext
.p_wglDestroyPbufferARB( ptr
->u
.pbuffer
);
1149 free_handle_ptr( ptr
);
1153 /***********************************************************************
1154 * wglQueryPbufferARB
1156 * Provided by the WGL_ARB_pbuffer extension.
1158 BOOL WINAPI
wglQueryPbufferARB( HPBUFFERARB handle
, int attrib
, int *value
)
1160 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1163 if (!ptr
) return FALSE
;
1164 ret
= ptr
->funcs
->ext
.p_wglQueryPbufferARB( ptr
->u
.pbuffer
, attrib
, value
);
1165 release_handle_ptr( ptr
);
1169 /***********************************************************************
1170 * wglGetExtensionsStringARB
1172 * Provided by the WGL_ARB_extensions_string extension.
1174 const char * WINAPI
wglGetExtensionsStringARB( HDC hdc
)
1176 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1178 if (!funcs
|| !funcs
->ext
.p_wglGetExtensionsStringARB
) return NULL
;
1179 return (const char *)funcs
->ext
.p_wglGetExtensionsStringARB( hdc
);
1182 /***********************************************************************
1183 * wglGetExtensionsStringEXT
1185 * Provided by the WGL_EXT_extensions_string extension.
1187 const char * WINAPI
wglGetExtensionsStringEXT(void)
1189 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1191 if (!funcs
->ext
.p_wglGetExtensionsStringEXT
) return NULL
;
1192 return (const char *)funcs
->ext
.p_wglGetExtensionsStringEXT();
1195 /***********************************************************************
1196 * wglSwapIntervalEXT
1198 * Provided by the WGL_EXT_swap_control extension.
1200 BOOL WINAPI
wglSwapIntervalEXT( int interval
)
1202 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1204 if (!funcs
->ext
.p_wglSwapIntervalEXT
) return FALSE
;
1205 return funcs
->ext
.p_wglSwapIntervalEXT( interval
);
1208 /***********************************************************************
1209 * wglGetSwapIntervalEXT
1211 * Provided by the WGL_EXT_swap_control extension.
1213 int WINAPI
wglGetSwapIntervalEXT(void)
1215 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1217 if (!funcs
->ext
.p_wglGetSwapIntervalEXT
) return FALSE
;
1218 return funcs
->ext
.p_wglGetSwapIntervalEXT();
1221 /***********************************************************************
1222 * wglSetPixelFormatWINE
1224 * Provided by the WGL_WINE_pixel_format_passthrough extension.
1226 BOOL WINAPI
wglSetPixelFormatWINE( HDC hdc
, int format
)
1228 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1230 if (!funcs
|| !funcs
->ext
.p_wglSetPixelFormatWINE
) return FALSE
;
1231 return funcs
->ext
.p_wglSetPixelFormatWINE( hdc
, format
);
1234 /***********************************************************************
1235 * wglQueryCurrentRendererIntegerWINE
1237 * Provided by the WGL_WINE_query_renderer extension.
1239 BOOL WINAPI
wglQueryCurrentRendererIntegerWINE( GLenum attribute
, GLuint
*value
)
1241 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1243 if (!funcs
->ext
.p_wglQueryCurrentRendererIntegerWINE
) return FALSE
;
1244 return funcs
->ext
.p_wglQueryCurrentRendererIntegerWINE( attribute
, value
);
1247 /***********************************************************************
1248 * wglQueryCurrentRendererStringWINE
1250 * Provided by the WGL_WINE_query_renderer extension.
1252 const GLchar
* WINAPI
wglQueryCurrentRendererStringWINE( GLenum attribute
)
1254 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1256 if (!funcs
->ext
.p_wglQueryCurrentRendererStringWINE
) return NULL
;
1257 return funcs
->ext
.p_wglQueryCurrentRendererStringWINE( attribute
);
1260 /***********************************************************************
1261 * wglQueryRendererIntegerWINE
1263 * Provided by the WGL_WINE_query_renderer extension.
1265 BOOL WINAPI
wglQueryRendererIntegerWINE( HDC dc
, GLint renderer
, GLenum attribute
, GLuint
*value
)
1267 const struct opengl_funcs
*funcs
= get_dc_funcs( dc
);
1269 if (!funcs
|| !funcs
->ext
.p_wglQueryRendererIntegerWINE
) return FALSE
;
1270 return funcs
->ext
.p_wglQueryRendererIntegerWINE( dc
, renderer
, attribute
, value
);
1273 /***********************************************************************
1274 * wglQueryRendererStringWINE
1276 * Provided by the WGL_WINE_query_renderer extension.
1278 const GLchar
* WINAPI
wglQueryRendererStringWINE( HDC dc
, GLint renderer
, GLenum attribute
)
1280 const struct opengl_funcs
*funcs
= get_dc_funcs( dc
);
1282 if (!funcs
|| !funcs
->ext
.p_wglQueryRendererStringWINE
) return NULL
;
1283 return funcs
->ext
.p_wglQueryRendererStringWINE( dc
, renderer
, attribute
);
1286 /***********************************************************************
1287 * wglUseFontBitmaps_common
1289 static BOOL
wglUseFontBitmaps_common( HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
, BOOL unicode
)
1291 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1293 unsigned int glyph
, size
= 0;
1294 void *bitmap
= NULL
, *gl_bitmap
= NULL
;
1298 funcs
->gl
.p_glGetIntegerv(GL_UNPACK_ALIGNMENT
, &org_alignment
);
1299 funcs
->gl
.p_glPixelStorei(GL_UNPACK_ALIGNMENT
, 4);
1301 for (glyph
= first
; glyph
< first
+ count
; glyph
++) {
1302 unsigned int needed_size
, height
, width
, width_int
;
1305 needed_size
= GetGlyphOutlineW(hdc
, glyph
, GGO_BITMAP
, &gm
, 0, NULL
, &identity
);
1307 needed_size
= GetGlyphOutlineA(hdc
, glyph
, GGO_BITMAP
, &gm
, 0, NULL
, &identity
);
1309 TRACE("Glyph: %3d / List: %d size %d\n", glyph
, listBase
, needed_size
);
1310 if (needed_size
== GDI_ERROR
) {
1315 if (needed_size
> size
) {
1317 HeapFree(GetProcessHeap(), 0, bitmap
);
1318 HeapFree(GetProcessHeap(), 0, gl_bitmap
);
1319 bitmap
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, size
);
1320 gl_bitmap
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, size
);
1322 if (needed_size
!= 0) {
1324 ret
= (GetGlyphOutlineW(hdc
, glyph
, GGO_BITMAP
, &gm
,
1325 size
, bitmap
, &identity
) != GDI_ERROR
);
1327 ret
= (GetGlyphOutlineA(hdc
, glyph
, GGO_BITMAP
, &gm
,
1328 size
, bitmap
, &identity
) != GDI_ERROR
);
1332 if (TRACE_ON(wgl
)) {
1333 unsigned int bitmask
;
1334 unsigned char *bitmap_
= bitmap
;
1336 TRACE(" - bbox: %d x %d\n", gm
.gmBlackBoxX
, gm
.gmBlackBoxY
);
1337 TRACE(" - origin: (%d, %d)\n", gm
.gmptGlyphOrigin
.x
, gm
.gmptGlyphOrigin
.y
);
1338 TRACE(" - increment: %d - %d\n", gm
.gmCellIncX
, gm
.gmCellIncY
);
1339 if (needed_size
!= 0) {
1340 TRACE(" - bitmap:\n");
1341 for (height
= 0; height
< gm
.gmBlackBoxY
; height
++) {
1343 for (width
= 0, bitmask
= 0x80; width
< gm
.gmBlackBoxX
; width
++, bitmask
>>= 1) {
1348 if (*bitmap_
& bitmask
)
1353 bitmap_
+= (4 - ((UINT_PTR
)bitmap_
& 0x03));
1359 /* In OpenGL, the bitmap is drawn from the bottom to the top... So we need to invert the
1360 * glyph for it to be drawn properly.
1362 if (needed_size
!= 0) {
1363 width_int
= (gm
.gmBlackBoxX
+ 31) / 32;
1364 for (height
= 0; height
< gm
.gmBlackBoxY
; height
++) {
1365 for (width
= 0; width
< width_int
; width
++) {
1366 ((int *) gl_bitmap
)[(gm
.gmBlackBoxY
- height
- 1) * width_int
+ width
] =
1367 ((int *) bitmap
)[height
* width_int
+ width
];
1372 funcs
->gl
.p_glNewList(listBase
++, GL_COMPILE
);
1373 if (needed_size
!= 0) {
1374 funcs
->gl
.p_glBitmap(gm
.gmBlackBoxX
, gm
.gmBlackBoxY
,
1375 0 - gm
.gmptGlyphOrigin
.x
, (int) gm
.gmBlackBoxY
- gm
.gmptGlyphOrigin
.y
,
1376 gm
.gmCellIncX
, gm
.gmCellIncY
,
1379 /* This is the case of 'empty' glyphs like the space character */
1380 funcs
->gl
.p_glBitmap(0, 0, 0, 0, gm
.gmCellIncX
, gm
.gmCellIncY
, NULL
);
1382 funcs
->gl
.p_glEndList();
1385 funcs
->gl
.p_glPixelStorei(GL_UNPACK_ALIGNMENT
, org_alignment
);
1386 HeapFree(GetProcessHeap(), 0, bitmap
);
1387 HeapFree(GetProcessHeap(), 0, gl_bitmap
);
1391 /***********************************************************************
1392 * wglUseFontBitmapsA (OPENGL32.@)
1394 BOOL WINAPI
wglUseFontBitmapsA(HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
)
1396 return wglUseFontBitmaps_common( hdc
, first
, count
, listBase
, FALSE
);
1399 /***********************************************************************
1400 * wglUseFontBitmapsW (OPENGL32.@)
1402 BOOL WINAPI
wglUseFontBitmapsW(HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
)
1404 return wglUseFontBitmaps_common( hdc
, first
, count
, listBase
, TRUE
);
1407 static void fixed_to_double(POINTFX fixed
, UINT em_size
, GLdouble vertex
[3])
1409 vertex
[0] = (fixed
.x
.value
+ (GLdouble
)fixed
.x
.fract
/ (1 << 16)) / em_size
;
1410 vertex
[1] = (fixed
.y
.value
+ (GLdouble
)fixed
.y
.fract
/ (1 << 16)) / em_size
;
1414 static void WINAPI
tess_callback_vertex(GLvoid
*vertex
)
1416 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1417 GLdouble
*dbl
= vertex
;
1418 TRACE("%f, %f, %f\n", dbl
[0], dbl
[1], dbl
[2]);
1419 funcs
->gl
.p_glVertex3dv(vertex
);
1422 static void WINAPI
tess_callback_begin(GLenum which
)
1424 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1425 TRACE("%d\n", which
);
1426 funcs
->gl
.p_glBegin(which
);
1429 static void WINAPI
tess_callback_end(void)
1431 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1433 funcs
->gl
.p_glEnd();
1436 typedef struct _bezier_vector
{
1441 static double bezier_deviation_squared(const bezier_vector
*p
)
1443 bezier_vector deviation
;
1444 bezier_vector vertex
;
1449 vertex
.x
= (p
[0].x
+ p
[1].x
*2 + p
[2].x
)/4 - p
[0].x
;
1450 vertex
.y
= (p
[0].y
+ p
[1].y
*2 + p
[2].y
)/4 - p
[0].y
;
1452 base
.x
= p
[2].x
- p
[0].x
;
1453 base
.y
= p
[2].y
- p
[0].y
;
1455 base_length
= sqrt(base
.x
*base
.x
+ base
.y
*base
.y
);
1456 base
.x
/= base_length
;
1457 base
.y
/= base_length
;
1459 dot
= base
.x
*vertex
.x
+ base
.y
*vertex
.y
;
1460 dot
= min(max(dot
, 0.0), base_length
);
1464 deviation
.x
= vertex
.x
-base
.x
;
1465 deviation
.y
= vertex
.y
-base
.y
;
1467 return deviation
.x
*deviation
.x
+ deviation
.y
*deviation
.y
;
1470 static int bezier_approximate(const bezier_vector
*p
, bezier_vector
*points
, FLOAT deviation
)
1472 bezier_vector first_curve
[3];
1473 bezier_vector second_curve
[3];
1474 bezier_vector vertex
;
1477 if(bezier_deviation_squared(p
) <= deviation
*deviation
)
1484 vertex
.x
= (p
[0].x
+ p
[1].x
*2 + p
[2].x
)/4;
1485 vertex
.y
= (p
[0].y
+ p
[1].y
*2 + p
[2].y
)/4;
1487 first_curve
[0] = p
[0];
1488 first_curve
[1].x
= (p
[0].x
+ p
[1].x
)/2;
1489 first_curve
[1].y
= (p
[0].y
+ p
[1].y
)/2;
1490 first_curve
[2] = vertex
;
1492 second_curve
[0] = vertex
;
1493 second_curve
[1].x
= (p
[2].x
+ p
[1].x
)/2;
1494 second_curve
[1].y
= (p
[2].y
+ p
[1].y
)/2;
1495 second_curve
[2] = p
[2];
1497 total_vertices
= bezier_approximate(first_curve
, points
, deviation
);
1499 points
+= total_vertices
;
1500 total_vertices
+= bezier_approximate(second_curve
, points
, deviation
);
1501 return total_vertices
;
1504 /***********************************************************************
1505 * wglUseFontOutlines_common
1507 static BOOL
wglUseFontOutlines_common(HDC hdc
,
1514 LPGLYPHMETRICSFLOAT lpgmf
,
1517 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1519 GLUtesselator
*tess
= NULL
;
1521 HFONT old_font
, unscaled_font
;
1522 UINT em_size
= 1024;
1525 TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc
, first
, count
,
1526 listBase
, deviation
, extrusion
, format
, lpgmf
, unicode
? "W" : "A");
1528 if(deviation
<= 0.0)
1529 deviation
= 1.0/em_size
;
1531 if(format
== WGL_FONT_POLYGONS
)
1533 tess
= gluNewTess();
1536 ERR("glu32 is required for this function but isn't available\n");
1539 gluTessCallback(tess
, GLU_TESS_VERTEX
, (void *)tess_callback_vertex
);
1540 gluTessCallback(tess
, GLU_TESS_BEGIN
, (void *)tess_callback_begin
);
1541 gluTessCallback(tess
, GLU_TESS_END
, tess_callback_end
);
1544 GetObjectW(GetCurrentObject(hdc
, OBJ_FONT
), sizeof(lf
), &lf
);
1545 rc
.left
= rc
.right
= rc
.bottom
= 0;
1547 DPtoLP(hdc
, (POINT
*)&rc
, 2);
1548 lf
.lfHeight
= -abs(rc
.top
- rc
.bottom
);
1549 lf
.lfOrientation
= lf
.lfEscapement
= 0;
1550 unscaled_font
= CreateFontIndirectW(&lf
);
1551 old_font
= SelectObject(hdc
, unscaled_font
);
1553 for (glyph
= first
; glyph
< first
+ count
; glyph
++)
1558 TTPOLYGONHEADER
*pph
;
1560 GLdouble
*vertices
= NULL
;
1561 int vertex_total
= -1;
1564 needed
= GetGlyphOutlineW(hdc
, glyph
, GGO_NATIVE
, &gm
, 0, NULL
, &identity
);
1566 needed
= GetGlyphOutlineA(hdc
, glyph
, GGO_NATIVE
, &gm
, 0, NULL
, &identity
);
1568 if(needed
== GDI_ERROR
)
1571 buf
= HeapAlloc(GetProcessHeap(), 0, needed
);
1574 GetGlyphOutlineW(hdc
, glyph
, GGO_NATIVE
, &gm
, needed
, buf
, &identity
);
1576 GetGlyphOutlineA(hdc
, glyph
, GGO_NATIVE
, &gm
, needed
, buf
, &identity
);
1578 TRACE("glyph %d\n", glyph
);
1582 lpgmf
->gmfBlackBoxX
= (float)gm
.gmBlackBoxX
/ em_size
;
1583 lpgmf
->gmfBlackBoxY
= (float)gm
.gmBlackBoxY
/ em_size
;
1584 lpgmf
->gmfptGlyphOrigin
.x
= (float)gm
.gmptGlyphOrigin
.x
/ em_size
;
1585 lpgmf
->gmfptGlyphOrigin
.y
= (float)gm
.gmptGlyphOrigin
.y
/ em_size
;
1586 lpgmf
->gmfCellIncX
= (float)gm
.gmCellIncX
/ em_size
;
1587 lpgmf
->gmfCellIncY
= (float)gm
.gmCellIncY
/ em_size
;
1589 TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf
->gmfBlackBoxX
, lpgmf
->gmfBlackBoxY
,
1590 lpgmf
->gmfptGlyphOrigin
.x
, lpgmf
->gmfptGlyphOrigin
.y
, lpgmf
->gmfCellIncX
, lpgmf
->gmfCellIncY
);
1594 funcs
->gl
.p_glNewList(listBase
++, GL_COMPILE
);
1595 funcs
->gl
.p_glFrontFace(GL_CCW
);
1596 if(format
== WGL_FONT_POLYGONS
)
1598 funcs
->gl
.p_glNormal3d(0.0, 0.0, 1.0);
1599 gluTessNormal(tess
, 0, 0, 1);
1600 gluTessBeginPolygon(tess
, NULL
);
1605 if(vertex_total
!= -1)
1606 vertices
= HeapAlloc(GetProcessHeap(), 0, vertex_total
* 3 * sizeof(GLdouble
));
1609 pph
= (TTPOLYGONHEADER
*)buf
;
1610 while((BYTE
*)pph
< buf
+ needed
)
1612 GLdouble previous
[3];
1613 fixed_to_double(pph
->pfxStart
, em_size
, previous
);
1616 TRACE("\tstart %d, %d\n", pph
->pfxStart
.x
.value
, pph
->pfxStart
.y
.value
);
1618 if(format
== WGL_FONT_POLYGONS
)
1619 gluTessBeginContour(tess
);
1621 funcs
->gl
.p_glBegin(GL_LINE_LOOP
);
1625 fixed_to_double(pph
->pfxStart
, em_size
, vertices
);
1626 if(format
== WGL_FONT_POLYGONS
)
1627 gluTessVertex(tess
, vertices
, vertices
);
1629 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1634 ppc
= (TTPOLYCURVE
*)((char*)pph
+ sizeof(*pph
));
1635 while((char*)ppc
< (char*)pph
+ pph
->cb
)
1640 switch(ppc
->wType
) {
1642 for(i
= 0; i
< ppc
->cpfx
; i
++)
1646 TRACE("\t\tline to %d, %d\n",
1647 ppc
->apfx
[i
].x
.value
, ppc
->apfx
[i
].y
.value
);
1648 fixed_to_double(ppc
->apfx
[i
], em_size
, vertices
);
1649 if(format
== WGL_FONT_POLYGONS
)
1650 gluTessVertex(tess
, vertices
, vertices
);
1652 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1655 fixed_to_double(ppc
->apfx
[i
], em_size
, previous
);
1660 case TT_PRIM_QSPLINE
:
1661 for(i
= 0; i
< ppc
->cpfx
-1; i
++)
1663 bezier_vector curve
[3];
1664 bezier_vector
*points
;
1665 GLdouble curve_vertex
[3];
1668 TRACE("\t\tcurve %d,%d %d,%d\n",
1669 ppc
->apfx
[i
].x
.value
, ppc
->apfx
[i
].y
.value
,
1670 ppc
->apfx
[i
+ 1].x
.value
, ppc
->apfx
[i
+ 1].y
.value
);
1672 curve
[0].x
= previous
[0];
1673 curve
[0].y
= previous
[1];
1674 fixed_to_double(ppc
->apfx
[i
], em_size
, curve_vertex
);
1675 curve
[1].x
= curve_vertex
[0];
1676 curve
[1].y
= curve_vertex
[1];
1677 fixed_to_double(ppc
->apfx
[i
+ 1], em_size
, curve_vertex
);
1678 curve
[2].x
= curve_vertex
[0];
1679 curve
[2].y
= curve_vertex
[1];
1682 curve
[2].x
= (curve
[1].x
+ curve
[2].x
)/2;
1683 curve
[2].y
= (curve
[1].y
+ curve
[2].y
)/2;
1685 num
= bezier_approximate(curve
, NULL
, deviation
);
1686 points
= HeapAlloc(GetProcessHeap(), 0, num
*sizeof(bezier_vector
));
1687 num
= bezier_approximate(curve
, points
, deviation
);
1688 vertex_total
+= num
;
1691 for(j
=0; j
<num
; j
++)
1693 TRACE("\t\t\tvertex at %f,%f\n", points
[j
].x
, points
[j
].y
);
1694 vertices
[0] = points
[j
].x
;
1695 vertices
[1] = points
[j
].y
;
1697 if(format
== WGL_FONT_POLYGONS
)
1698 gluTessVertex(tess
, vertices
, vertices
);
1700 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1704 HeapFree(GetProcessHeap(), 0, points
);
1705 previous
[0] = curve
[2].x
;
1706 previous
[1] = curve
[2].y
;
1710 ERR("\t\tcurve type = %d\n", ppc
->wType
);
1711 if(format
== WGL_FONT_POLYGONS
)
1712 gluTessEndContour(tess
);
1714 funcs
->gl
.p_glEnd();
1718 ppc
= (TTPOLYCURVE
*)((char*)ppc
+ sizeof(*ppc
) +
1719 (ppc
->cpfx
- 1) * sizeof(POINTFX
));
1721 if(format
== WGL_FONT_POLYGONS
)
1722 gluTessEndContour(tess
);
1724 funcs
->gl
.p_glEnd();
1725 pph
= (TTPOLYGONHEADER
*)((char*)pph
+ pph
->cb
);
1730 if(format
== WGL_FONT_POLYGONS
)
1731 gluTessEndPolygon(tess
);
1732 funcs
->gl
.p_glTranslated((GLdouble
)gm
.gmCellIncX
/ em_size
, (GLdouble
)gm
.gmCellIncY
/ em_size
, 0.0);
1733 funcs
->gl
.p_glEndList();
1734 HeapFree(GetProcessHeap(), 0, buf
);
1735 HeapFree(GetProcessHeap(), 0, vertices
);
1739 DeleteObject(SelectObject(hdc
, old_font
));
1740 if(format
== WGL_FONT_POLYGONS
)
1741 gluDeleteTess(tess
);
1746 /***********************************************************************
1747 * wglUseFontOutlinesA (OPENGL32.@)
1749 BOOL WINAPI
wglUseFontOutlinesA(HDC hdc
,
1756 LPGLYPHMETRICSFLOAT lpgmf
)
1758 return wglUseFontOutlines_common(hdc
, first
, count
, listBase
, deviation
, extrusion
, format
, lpgmf
, FALSE
);
1761 /***********************************************************************
1762 * wglUseFontOutlinesW (OPENGL32.@)
1764 BOOL WINAPI
wglUseFontOutlinesW(HDC hdc
,
1771 LPGLYPHMETRICSFLOAT lpgmf
)
1773 return wglUseFontOutlines_common(hdc
, first
, count
, listBase
, deviation
, extrusion
, format
, lpgmf
, TRUE
);
1776 /***********************************************************************
1777 * glDebugEntry (OPENGL32.@)
1779 GLint WINAPI
glDebugEntry( GLint unknown1
, GLint unknown2
)
1784 static GLubyte
*filter_extensions_list(const char *extensions
, const char *disabled
)
1789 p
= str
= HeapAlloc(GetProcessHeap(), 0, strlen(extensions
) + 2);
1793 TRACE( "GL_EXTENSIONS:\n" );
1797 while (*extensions
== ' ')
1801 if (!(end
= strchr(extensions
, ' ')))
1802 end
= extensions
+ strlen(extensions
);
1803 memcpy(p
, extensions
, end
- extensions
);
1804 p
[end
- extensions
] = 0;
1805 if (!has_extension(disabled
, p
, strlen(p
)))
1807 TRACE("++ %s\n", p
);
1808 p
+= end
- extensions
;
1813 TRACE("-- %s (disabled by config)\n", p
);
1818 return (GLubyte
*)str
;
1821 static GLuint
*filter_extensions_index(const char *disabled
)
1823 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1824 const char *ext
, *end
, *gl_ext
;
1825 GLuint
*disabled_exts
, *new_disabled_exts
;
1826 unsigned int i
= 0, j
, disabled_size
;
1827 GLint extensions_count
;
1829 if (!funcs
->ext
.p_glGetStringi
)
1831 void **func_ptr
= (void **)&funcs
->ext
.p_glGetStringi
;
1833 *func_ptr
= funcs
->wgl
.p_wglGetProcAddress("glGetStringi");
1834 if (!funcs
->ext
.p_glGetStringi
)
1838 funcs
->gl
.p_glGetIntegerv(GL_NUM_EXTENSIONS
, &extensions_count
);
1840 disabled_exts
= HeapAlloc(GetProcessHeap(), 0, disabled_size
* sizeof(*disabled_exts
));
1844 TRACE( "GL_EXTENSIONS:\n" );
1846 for (j
= 0; j
< extensions_count
; ++j
)
1848 gl_ext
= (const char *)funcs
->ext
.p_glGetStringi(GL_EXTENSIONS
, j
);
1856 TRACE("++ %s\n", gl_ext
);
1859 if (!(end
= strchr(ext
, ' ')))
1860 end
= ext
+ strlen(ext
);
1862 if (!strncmp(gl_ext
, ext
, end
- ext
) && !gl_ext
[end
- ext
])
1864 if (i
+ 1 == disabled_size
)
1867 new_disabled_exts
= HeapReAlloc(GetProcessHeap(), 0, disabled_exts
,
1868 disabled_size
* sizeof(*disabled_exts
));
1869 if (!new_disabled_exts
)
1871 disabled_exts
[i
] = ~0u;
1872 return disabled_exts
;
1874 disabled_exts
= new_disabled_exts
;
1876 TRACE("-- %s (disabled by config)\n", gl_ext
);
1877 disabled_exts
[i
++] = j
;
1883 disabled_exts
[i
] = ~0u;
1884 return disabled_exts
;
1887 /* build the extension string by filtering out the disabled extensions */
1888 static BOOL
filter_extensions(const char *extensions
, GLubyte
**exts_list
, GLuint
**disabled_exts
)
1890 static const char *disabled
;
1898 /* @@ Wine registry key: HKCU\Software\Wine\OpenGL */
1899 if (!RegOpenKeyA( HKEY_CURRENT_USER
, "Software\\Wine\\OpenGL", &hkey
))
1901 if (!RegQueryValueExA( hkey
, "DisabledExtensions", 0, NULL
, NULL
, &size
))
1903 str
= HeapAlloc( GetProcessHeap(), 0, size
);
1904 if (RegQueryValueExA( hkey
, "DisabledExtensions", 0, NULL
, (BYTE
*)str
, &size
)) *str
= 0;
1906 RegCloseKey( hkey
);
1910 if (InterlockedCompareExchangePointer( (void **)&disabled
, str
, NULL
))
1911 HeapFree( GetProcessHeap(), 0, str
);
1919 if (extensions
&& !*exts_list
)
1920 *exts_list
= filter_extensions_list(extensions
, disabled
);
1922 if (!*disabled_exts
)
1923 *disabled_exts
= filter_extensions_index(disabled
);
1925 return (exts_list
&& *exts_list
) || *disabled_exts
;
1928 /***********************************************************************
1929 * glGetString (OPENGL32.@)
1931 const GLubyte
* WINAPI
glGetString( GLenum name
)
1933 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1934 const GLubyte
*ret
= funcs
->gl
.p_glGetString( name
);
1936 if (name
== GL_EXTENSIONS
&& ret
)
1938 struct wgl_handle
*ptr
= get_current_context_ptr();
1939 if (ptr
->u
.context
->extensions
||
1940 filter_extensions((const char *)ret
, &ptr
->u
.context
->extensions
, &ptr
->u
.context
->disabled_exts
))
1941 ret
= ptr
->u
.context
->extensions
;
1946 /***********************************************************************
1947 * OpenGL initialisation routine
1949 BOOL WINAPI
DllMain( HINSTANCE hinst
, DWORD reason
, LPVOID reserved
)
1953 case DLL_PROCESS_ATTACH
:
1954 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
1956 case DLL_THREAD_ATTACH
:
1957 NtCurrentTeb()->glTable
= &null_opengl_funcs
;