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 void (CALLBACK
*debug_callback
)(GLenum
, GLenum
, GLuint
, GLenum
,
62 GLsizei
, const GLchar
*, const void *); /* debug callback */
63 const void *debug_user
; /* debug user parameter */
64 GLubyte
*extensions
; /* extension string */
65 GLuint
*disabled_exts
; /* indices of disabled extensions */
66 struct wgl_context
*drv_ctx
; /* driver context */
72 struct opengl_funcs
*funcs
;
75 struct opengl_context
*context
; /* for HANDLE_CONTEXT */
76 struct wgl_pbuffer
*pbuffer
; /* for HANDLE_PBUFFER */
77 struct wgl_handle
*next
; /* for free handles */
81 static struct wgl_handle wgl_handles
[MAX_WGL_HANDLES
];
82 static struct wgl_handle
*next_free
;
83 static unsigned int handle_count
;
85 static CRITICAL_SECTION wgl_section
;
86 static CRITICAL_SECTION_DEBUG critsect_debug
=
89 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
90 0, 0, { (DWORD_PTR
)(__FILE__
": wgl_section") }
92 static CRITICAL_SECTION wgl_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
94 static const MAT2 identity
= { {0,1},{0,0},{0,0},{0,1} };
96 static inline HANDLE
next_handle( struct wgl_handle
*ptr
, enum wgl_handle_type type
)
98 WORD generation
= HIWORD( ptr
->handle
) + 1;
99 if (!generation
) generation
++;
100 ptr
->handle
= MAKELONG( ptr
- wgl_handles
, generation
) | type
;
101 return ULongToHandle( ptr
->handle
);
104 /* the current context is assumed valid and doesn't need locking */
105 static inline struct wgl_handle
*get_current_context_ptr(void)
107 if (!NtCurrentTeb()->glCurrentRC
) return NULL
;
108 return &wgl_handles
[LOWORD(NtCurrentTeb()->glCurrentRC
) & ~HANDLE_TYPE_MASK
];
111 static struct wgl_handle
*get_handle_ptr( HANDLE handle
, enum wgl_handle_type type
)
113 unsigned int index
= LOWORD( handle
) & ~HANDLE_TYPE_MASK
;
115 EnterCriticalSection( &wgl_section
);
116 if (index
< handle_count
&& ULongToHandle(wgl_handles
[index
].handle
) == handle
)
117 return &wgl_handles
[index
];
119 LeaveCriticalSection( &wgl_section
);
120 SetLastError( ERROR_INVALID_HANDLE
);
124 static void release_handle_ptr( struct wgl_handle
*ptr
)
126 if (ptr
) LeaveCriticalSection( &wgl_section
);
129 static HANDLE
alloc_handle( enum wgl_handle_type type
, struct opengl_funcs
*funcs
, void *user_ptr
)
132 struct wgl_handle
*ptr
= NULL
;
134 EnterCriticalSection( &wgl_section
);
135 if ((ptr
= next_free
))
136 next_free
= next_free
->u
.next
;
137 else if (handle_count
< MAX_WGL_HANDLES
)
138 ptr
= &wgl_handles
[handle_count
++];
143 ptr
->u
.context
= user_ptr
;
144 handle
= next_handle( ptr
, type
);
146 else SetLastError( ERROR_NOT_ENOUGH_MEMORY
);
147 LeaveCriticalSection( &wgl_section
);
151 static void free_handle_ptr( struct wgl_handle
*ptr
)
153 ptr
->handle
|= 0xffff;
154 ptr
->u
.next
= next_free
;
157 LeaveCriticalSection( &wgl_section
);
160 static inline enum wgl_handle_type
get_current_context_type(void)
162 if (!NtCurrentTeb()->glCurrentRC
) return HANDLE_CONTEXT
;
163 return LOWORD(NtCurrentTeb()->glCurrentRC
) & HANDLE_TYPE_MASK
;
166 /***********************************************************************
167 * wglCopyContext (OPENGL32.@)
169 BOOL WINAPI
wglCopyContext(HGLRC hglrcSrc
, HGLRC hglrcDst
, UINT mask
)
171 struct wgl_handle
*src
, *dst
;
174 if (!(src
= get_handle_ptr( hglrcSrc
, HANDLE_CONTEXT
))) return FALSE
;
175 if ((dst
= get_handle_ptr( hglrcDst
, HANDLE_CONTEXT
)))
177 if (src
->funcs
!= dst
->funcs
) SetLastError( ERROR_INVALID_HANDLE
);
178 else ret
= src
->funcs
->wgl
.p_wglCopyContext( src
->u
.context
->drv_ctx
,
179 dst
->u
.context
->drv_ctx
, mask
);
181 release_handle_ptr( dst
);
182 release_handle_ptr( src
);
186 /***********************************************************************
187 * wglDeleteContext (OPENGL32.@)
189 BOOL WINAPI
wglDeleteContext(HGLRC hglrc
)
191 struct wgl_handle
*ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
);
193 if (!ptr
) return FALSE
;
195 if (ptr
->u
.context
->tid
&& ptr
->u
.context
->tid
!= GetCurrentThreadId())
197 SetLastError( ERROR_BUSY
);
198 release_handle_ptr( ptr
);
201 if (hglrc
== NtCurrentTeb()->glCurrentRC
) wglMakeCurrent( 0, 0 );
202 ptr
->funcs
->wgl
.p_wglDeleteContext( ptr
->u
.context
->drv_ctx
);
203 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
->disabled_exts
);
204 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
->extensions
);
205 HeapFree( GetProcessHeap(), 0, ptr
->u
.context
);
206 free_handle_ptr( ptr
);
210 /***********************************************************************
211 * wglMakeCurrent (OPENGL32.@)
213 BOOL WINAPI
wglMakeCurrent(HDC hdc
, HGLRC hglrc
)
216 struct wgl_handle
*ptr
, *prev
= get_current_context_ptr();
220 if (!(ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
))) return FALSE
;
221 if (!ptr
->u
.context
->tid
|| ptr
->u
.context
->tid
== GetCurrentThreadId())
223 ret
= ptr
->funcs
->wgl
.p_wglMakeCurrent( hdc
, ptr
->u
.context
->drv_ctx
);
226 if (prev
) prev
->u
.context
->tid
= 0;
227 ptr
->u
.context
->tid
= GetCurrentThreadId();
228 ptr
->u
.context
->draw_dc
= hdc
;
229 ptr
->u
.context
->read_dc
= hdc
;
230 NtCurrentTeb()->glCurrentRC
= hglrc
;
231 NtCurrentTeb()->glTable
= ptr
->funcs
;
236 SetLastError( ERROR_BUSY
);
239 release_handle_ptr( ptr
);
243 if (!prev
->funcs
->wgl
.p_wglMakeCurrent( 0, NULL
)) return FALSE
;
244 prev
->u
.context
->tid
= 0;
245 NtCurrentTeb()->glCurrentRC
= 0;
246 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
250 SetLastError( ERROR_INVALID_HANDLE
);
256 /***********************************************************************
257 * wglCreateContextAttribsARB
259 * Provided by the WGL_ARB_create_context extension.
261 HGLRC WINAPI
wglCreateContextAttribsARB( HDC hdc
, HGLRC share
, const int *attribs
)
264 struct wgl_context
*drv_ctx
;
265 struct wgl_handle
*share_ptr
= NULL
;
266 struct opengl_context
*context
;
267 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
271 SetLastError( ERROR_DC_NOT_FOUND
);
274 if (!funcs
->ext
.p_wglCreateContextAttribsARB
) return 0;
275 if (share
&& !(share_ptr
= get_handle_ptr( share
, HANDLE_CONTEXT
)))
277 SetLastError( ERROR_INVALID_OPERATION
);
280 if ((drv_ctx
= funcs
->ext
.p_wglCreateContextAttribsARB( hdc
,
281 share_ptr
? share_ptr
->u
.context
->drv_ctx
: NULL
, attribs
)))
283 if ((context
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*context
) )))
285 enum wgl_handle_type type
= HANDLE_CONTEXT
;
291 if (attribs
[0] == WGL_CONTEXT_MAJOR_VERSION_ARB
)
294 type
= HANDLE_CONTEXT_V3
;
301 context
->drv_ctx
= drv_ctx
;
302 if (!(ret
= alloc_handle( type
, funcs
, context
)))
303 HeapFree( GetProcessHeap(), 0, context
);
305 if (!ret
) funcs
->wgl
.p_wglDeleteContext( drv_ctx
);
307 release_handle_ptr( share_ptr
);
312 /***********************************************************************
313 * wglMakeContextCurrentARB
315 * Provided by the WGL_ARB_make_current_read extension.
317 BOOL WINAPI
wglMakeContextCurrentARB( HDC draw_hdc
, HDC read_hdc
, HGLRC hglrc
)
320 struct wgl_handle
*ptr
, *prev
= get_current_context_ptr();
324 if (!(ptr
= get_handle_ptr( hglrc
, HANDLE_CONTEXT
))) return FALSE
;
325 if (!ptr
->u
.context
->tid
|| ptr
->u
.context
->tid
== GetCurrentThreadId())
327 ret
= (ptr
->funcs
->ext
.p_wglMakeContextCurrentARB
&&
328 ptr
->funcs
->ext
.p_wglMakeContextCurrentARB( draw_hdc
, read_hdc
,
329 ptr
->u
.context
->drv_ctx
));
332 if (prev
) prev
->u
.context
->tid
= 0;
333 ptr
->u
.context
->tid
= GetCurrentThreadId();
334 ptr
->u
.context
->draw_dc
= draw_hdc
;
335 ptr
->u
.context
->read_dc
= read_hdc
;
336 NtCurrentTeb()->glCurrentRC
= hglrc
;
337 NtCurrentTeb()->glTable
= ptr
->funcs
;
342 SetLastError( ERROR_BUSY
);
345 release_handle_ptr( ptr
);
349 if (!prev
->funcs
->wgl
.p_wglMakeCurrent( 0, NULL
)) return FALSE
;
350 prev
->u
.context
->tid
= 0;
351 NtCurrentTeb()->glCurrentRC
= 0;
352 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
357 /***********************************************************************
358 * wglGetCurrentReadDCARB
360 * Provided by the WGL_ARB_make_current_read extension.
362 HDC WINAPI
wglGetCurrentReadDCARB(void)
364 struct wgl_handle
*ptr
= get_current_context_ptr();
367 return ptr
->u
.context
->read_dc
;
370 /***********************************************************************
371 * wglShareLists (OPENGL32.@)
373 BOOL WINAPI
wglShareLists(HGLRC hglrcSrc
, HGLRC hglrcDst
)
376 struct wgl_handle
*src
, *dst
;
378 if (!(src
= get_handle_ptr( hglrcSrc
, HANDLE_CONTEXT
))) return FALSE
;
379 if ((dst
= get_handle_ptr( hglrcDst
, HANDLE_CONTEXT
)))
381 if (src
->funcs
!= dst
->funcs
) SetLastError( ERROR_INVALID_HANDLE
);
382 else ret
= src
->funcs
->wgl
.p_wglShareLists( src
->u
.context
->drv_ctx
, dst
->u
.context
->drv_ctx
);
384 release_handle_ptr( dst
);
385 release_handle_ptr( src
);
389 /***********************************************************************
390 * wglGetCurrentDC (OPENGL32.@)
392 HDC WINAPI
wglGetCurrentDC(void)
394 struct wgl_handle
*ptr
= get_current_context_ptr();
397 return ptr
->u
.context
->draw_dc
;
400 /***********************************************************************
401 * wglCreateContext (OPENGL32.@)
403 HGLRC WINAPI
wglCreateContext(HDC hdc
)
406 struct wgl_context
*drv_ctx
;
407 struct opengl_context
*context
;
408 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
410 if (!funcs
) return 0;
411 if (!(drv_ctx
= funcs
->wgl
.p_wglCreateContext( hdc
))) return 0;
412 if ((context
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*context
) )))
414 context
->drv_ctx
= drv_ctx
;
415 if (!(ret
= alloc_handle( HANDLE_CONTEXT
, funcs
, context
)))
416 HeapFree( GetProcessHeap(), 0, context
);
418 if (!ret
) funcs
->wgl
.p_wglDeleteContext( drv_ctx
);
422 /***********************************************************************
423 * wglGetCurrentContext (OPENGL32.@)
425 HGLRC WINAPI
wglGetCurrentContext(void)
427 return NtCurrentTeb()->glCurrentRC
;
430 /***********************************************************************
431 * wglDescribePixelFormat (OPENGL32.@)
433 INT WINAPI
wglDescribePixelFormat(HDC hdc
, INT format
, UINT size
, PIXELFORMATDESCRIPTOR
*descr
)
435 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
436 if (!funcs
) return 0;
437 return funcs
->wgl
.p_wglDescribePixelFormat( hdc
, format
, size
, descr
);
440 /***********************************************************************
441 * wglChoosePixelFormat (OPENGL32.@)
443 INT WINAPI
wglChoosePixelFormat(HDC hdc
, const PIXELFORMATDESCRIPTOR
* ppfd
)
445 PIXELFORMATDESCRIPTOR format
, best
;
446 int i
, count
, best_format
;
447 int bestDBuffer
= -1, bestStereo
= -1;
449 TRACE_(wgl
)( "%p %p: size %u version %u flags %u type %u color %u %u,%u,%u,%u "
450 "accum %u depth %u stencil %u aux %u\n",
451 hdc
, ppfd
, ppfd
->nSize
, ppfd
->nVersion
, ppfd
->dwFlags
, ppfd
->iPixelType
,
452 ppfd
->cColorBits
, ppfd
->cRedBits
, ppfd
->cGreenBits
, ppfd
->cBlueBits
, ppfd
->cAlphaBits
,
453 ppfd
->cAccumBits
, ppfd
->cDepthBits
, ppfd
->cStencilBits
, ppfd
->cAuxBuffers
);
455 count
= wglDescribePixelFormat( hdc
, 0, 0, NULL
);
456 if (!count
) return 0;
460 best
.cAlphaBits
= -1;
461 best
.cColorBits
= -1;
462 best
.cDepthBits
= -1;
463 best
.cStencilBits
= -1;
464 best
.cAuxBuffers
= -1;
466 for (i
= 1; i
<= count
; i
++)
468 if (!wglDescribePixelFormat( hdc
, i
, sizeof(format
), &format
)) continue;
470 if (ppfd
->iPixelType
!= format
.iPixelType
)
472 TRACE( "pixel type mismatch for iPixelFormat=%d\n", i
);
476 /* only use bitmap capable for formats for bitmap rendering */
477 if( (ppfd
->dwFlags
& PFD_DRAW_TO_BITMAP
) != (format
.dwFlags
& PFD_DRAW_TO_BITMAP
))
479 TRACE( "PFD_DRAW_TO_BITMAP mismatch for iPixelFormat=%d\n", i
);
483 /* The behavior of PDF_STEREO/PFD_STEREO_DONTCARE and PFD_DOUBLEBUFFER / PFD_DOUBLEBUFFER_DONTCARE
484 * is not very clear on MSDN. They specify that ChoosePixelFormat tries to match pixel formats
485 * with the flag (PFD_STEREO / PFD_DOUBLEBUFFERING) set. Otherwise it says that it tries to match
486 * formats without the given flag set.
487 * A test on Windows using a Radeon 9500pro on WinXP (the driver doesn't support Stereo)
488 * has indicated that a format without stereo is returned when stereo is unavailable.
489 * So in case PFD_STEREO is set, formats that support it should have priority above formats
490 * without. In case PFD_STEREO_DONTCARE is set, stereo is ignored.
492 * To summarize the following is most likely the correct behavior:
493 * stereo not set -> prefer non-stereo formats, but also accept stereo formats
494 * stereo set -> prefer stereo formats, but also accept non-stereo formats
495 * stereo don't care -> it doesn't matter whether we get stereo or not
497 * In Wine we will treat non-stereo the same way as don't care because it makes
498 * format selection even more complicated and second drivers with Stereo advertise
499 * each format twice anyway.
502 /* Doublebuffer, see the comments above */
503 if (!(ppfd
->dwFlags
& PFD_DOUBLEBUFFER_DONTCARE
))
505 if (((ppfd
->dwFlags
& PFD_DOUBLEBUFFER
) != bestDBuffer
) &&
506 ((format
.dwFlags
& PFD_DOUBLEBUFFER
) == (ppfd
->dwFlags
& PFD_DOUBLEBUFFER
)))
509 if (bestDBuffer
!= -1 && (format
.dwFlags
& PFD_DOUBLEBUFFER
) != bestDBuffer
) continue;
511 else if (!best_format
)
514 /* Stereo, see the comments above. */
515 if (!(ppfd
->dwFlags
& PFD_STEREO_DONTCARE
))
517 if (((ppfd
->dwFlags
& PFD_STEREO
) != bestStereo
) &&
518 ((format
.dwFlags
& PFD_STEREO
) == (ppfd
->dwFlags
& PFD_STEREO
)))
521 if (bestStereo
!= -1 && (format
.dwFlags
& PFD_STEREO
) != bestStereo
) continue;
523 else if (!best_format
)
526 /* Below we will do a number of checks to select the 'best' pixelformat.
527 * We assume the precedence cColorBits > cAlphaBits > cDepthBits > cStencilBits -> cAuxBuffers.
528 * The code works by trying to match the most important options as close as possible.
529 * When a reasonable format is found, we will try to match more options.
530 * It appears (see the opengl32 test) that Windows opengl drivers ignore options
531 * like cColorBits, cAlphaBits and friends if they are set to 0, so they are considered
532 * as DONTCARE. At least Serious Sam TSE relies on this behavior. */
534 if (ppfd
->cColorBits
)
536 if (((ppfd
->cColorBits
> best
.cColorBits
) && (format
.cColorBits
> best
.cColorBits
)) ||
537 ((format
.cColorBits
>= ppfd
->cColorBits
) && (format
.cColorBits
< best
.cColorBits
)))
540 if (best
.cColorBits
!= format
.cColorBits
) /* Do further checks if the format is compatible */
542 TRACE( "color mismatch for iPixelFormat=%d\n", i
);
546 if (ppfd
->cAlphaBits
)
548 if (((ppfd
->cAlphaBits
> best
.cAlphaBits
) && (format
.cAlphaBits
> best
.cAlphaBits
)) ||
549 ((format
.cAlphaBits
>= ppfd
->cAlphaBits
) && (format
.cAlphaBits
< best
.cAlphaBits
)))
552 if (best
.cAlphaBits
!= format
.cAlphaBits
)
554 TRACE( "alpha mismatch for iPixelFormat=%d\n", i
);
558 if (ppfd
->cDepthBits
)
560 if (((ppfd
->cDepthBits
> best
.cDepthBits
) && (format
.cDepthBits
> best
.cDepthBits
)) ||
561 ((format
.cDepthBits
>= ppfd
->cDepthBits
) && (format
.cDepthBits
< best
.cDepthBits
)))
564 if (best
.cDepthBits
!= format
.cDepthBits
)
566 TRACE( "depth mismatch for iPixelFormat=%d\n", i
);
570 if (ppfd
->cStencilBits
)
572 if (((ppfd
->cStencilBits
> best
.cStencilBits
) && (format
.cStencilBits
> best
.cStencilBits
)) ||
573 ((format
.cStencilBits
>= ppfd
->cStencilBits
) && (format
.cStencilBits
< best
.cStencilBits
)))
576 if (best
.cStencilBits
!= format
.cStencilBits
)
578 TRACE( "stencil mismatch for iPixelFormat=%d\n", i
);
582 if (ppfd
->cAuxBuffers
)
584 if (((ppfd
->cAuxBuffers
> best
.cAuxBuffers
) && (format
.cAuxBuffers
> best
.cAuxBuffers
)) ||
585 ((format
.cAuxBuffers
>= ppfd
->cAuxBuffers
) && (format
.cAuxBuffers
< best
.cAuxBuffers
)))
588 if (best
.cAuxBuffers
!= format
.cAuxBuffers
)
590 TRACE( "aux mismatch for iPixelFormat=%d\n", i
);
599 bestDBuffer
= format
.dwFlags
& PFD_DOUBLEBUFFER
;
600 bestStereo
= format
.dwFlags
& PFD_STEREO
;
603 TRACE( "returning %u\n", best_format
);
607 /***********************************************************************
608 * wglGetPixelFormat (OPENGL32.@)
610 INT WINAPI
wglGetPixelFormat(HDC hdc
)
612 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
615 SetLastError( ERROR_INVALID_PIXEL_FORMAT
);
618 return funcs
->wgl
.p_wglGetPixelFormat( hdc
);
621 /***********************************************************************
622 * wglSetPixelFormat(OPENGL32.@)
624 BOOL WINAPI
wglSetPixelFormat( HDC hdc
, INT format
, const PIXELFORMATDESCRIPTOR
*descr
)
626 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
627 if (!funcs
) return FALSE
;
628 return funcs
->wgl
.p_wglSetPixelFormat( hdc
, format
, descr
);
631 /***********************************************************************
632 * wglSwapBuffers (OPENGL32.@)
634 BOOL WINAPI DECLSPEC_HOTPATCH
wglSwapBuffers( HDC hdc
)
636 const struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
638 if (!funcs
|| !funcs
->wgl
.p_wglSwapBuffers
) return FALSE
;
639 if (!funcs
->wgl
.p_wglSwapBuffers( hdc
)) return FALSE
;
643 static long prev_time
, start_time
;
644 static unsigned long frames
, frames_total
;
646 DWORD time
= GetTickCount();
649 /* every 1.5 seconds */
650 if (time
- prev_time
> 1500)
652 TRACE_(fps
)("@ approx %.2ffps, total %.2ffps\n",
653 1000.0*frames
/(time
- prev_time
), 1000.0*frames_total
/(time
- start_time
));
656 if (start_time
== 0) start_time
= time
;
662 /***********************************************************************
663 * wglCreateLayerContext (OPENGL32.@)
665 HGLRC WINAPI
wglCreateLayerContext(HDC hdc
,
667 TRACE("(%p,%d)\n", hdc
, iLayerPlane
);
669 if (iLayerPlane
== 0) {
670 return wglCreateContext(hdc
);
672 FIXME("no handler for layer %d\n", iLayerPlane
);
677 /***********************************************************************
678 * wglDescribeLayerPlane (OPENGL32.@)
680 BOOL WINAPI
wglDescribeLayerPlane(HDC hdc
,
684 LPLAYERPLANEDESCRIPTOR plpd
) {
685 FIXME("(%p,%d,%d,%d,%p)\n", hdc
, iPixelFormat
, iLayerPlane
, nBytes
, plpd
);
690 /***********************************************************************
691 * wglGetLayerPaletteEntries (OPENGL32.@)
693 int WINAPI
wglGetLayerPaletteEntries(HDC hdc
,
697 const COLORREF
*pcr
) {
698 FIXME("(): stub!\n");
703 static BOOL
filter_extensions(const char *extensions
, GLubyte
**exts_list
, GLuint
**disabled_exts
);
705 void WINAPI
glGetIntegerv(GLenum pname
, GLint
*data
)
707 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
709 TRACE("(%d, %p)\n", pname
, data
);
710 if (pname
== GL_NUM_EXTENSIONS
)
712 struct wgl_handle
*ptr
= get_current_context_ptr();
714 if (ptr
->u
.context
->disabled_exts
||
715 filter_extensions(NULL
, NULL
, &ptr
->u
.context
->disabled_exts
))
717 const GLuint
*disabled_exts
= ptr
->u
.context
->disabled_exts
;
718 GLint count
, disabled_count
= 0;
720 funcs
->gl
.p_glGetIntegerv(pname
, &count
);
721 while (*disabled_exts
++ != ~0u)
723 *data
= count
- disabled_count
;
727 funcs
->gl
.p_glGetIntegerv(pname
, data
);
730 const GLubyte
* WINAPI
glGetStringi(GLenum name
, GLuint index
)
732 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
734 TRACE("(%d, %d)\n", name
, index
);
735 if (!funcs
->ext
.p_glGetStringi
)
737 void **func_ptr
= (void **)&funcs
->ext
.p_glGetStringi
;
739 *func_ptr
= funcs
->wgl
.p_wglGetProcAddress("glGetStringi");
742 if (name
== GL_EXTENSIONS
)
744 struct wgl_handle
*ptr
= get_current_context_ptr();
746 if (ptr
->u
.context
->disabled_exts
||
747 filter_extensions(NULL
, NULL
, &ptr
->u
.context
->disabled_exts
))
749 const GLuint
*disabled_exts
= ptr
->u
.context
->disabled_exts
;
750 unsigned int disabled_count
= 0;
752 while (index
+ disabled_count
>= *disabled_exts
++)
754 return funcs
->ext
.p_glGetStringi(name
, index
+ disabled_count
);
757 return funcs
->ext
.p_glGetStringi(name
, index
);
760 /* check if the extension is present in the list */
761 static BOOL
has_extension( const char *list
, const char *ext
, size_t len
)
767 GLint extensions_count
;
769 glGetIntegerv(GL_NUM_EXTENSIONS
, &extensions_count
);
770 for (i
= 0; i
< extensions_count
; ++i
)
772 gl_ext
= (const char *)glGetStringi(GL_EXTENSIONS
, i
);
773 if (!strncmp(gl_ext
, ext
, len
) && !gl_ext
[len
])
781 while (*list
== ' ') list
++;
782 if (!strncmp( list
, ext
, len
) && (!list
[len
] || list
[len
] == ' ')) return TRUE
;
783 list
= strchr( list
, ' ' );
788 static int compar(const void *elt_a
, const void *elt_b
) {
789 return strcmp(((const OpenGL_extension
*) elt_a
)->name
,
790 ((const OpenGL_extension
*) elt_b
)->name
);
793 /* Check if a GL extension is supported */
794 static BOOL
is_extension_supported(const char* extension
)
796 enum wgl_handle_type type
= get_current_context_type();
797 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
798 const char *gl_ext_string
= NULL
;
801 TRACE("Checking for extension '%s'\n", extension
);
803 if (type
== HANDLE_CONTEXT
)
805 gl_ext_string
= (const char*)glGetString(GL_EXTENSIONS
);
808 ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n");
813 /* We use the GetProcAddress function from the display driver to retrieve function pointers
814 * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done
815 * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't
816 * require the function to return NULL when an extension isn't found. For this reason we check
817 * if the OpenGL extension required for the function we are looking up is supported. */
819 while ((len
= strcspn(extension
, " ")) != 0)
821 /* Check if the extension is part of the GL extension string to see if it is supported. */
822 if (has_extension(gl_ext_string
, extension
, len
))
825 /* In general an OpenGL function starts as an ARB/EXT extension and at some stage
826 * it becomes part of the core OpenGL library and can be reached without the ARB/EXT
827 * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor.
828 * Check if we are searching for a core GL function */
829 if(strncmp(extension
, "GL_VERSION_", 11) == 0)
831 const GLubyte
*gl_version
= funcs
->gl
.p_glGetString(GL_VERSION
);
832 const char *version
= extension
+ 11; /* Move past 'GL_VERSION_' */
835 ERR("No OpenGL version found!\n");
839 /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function.
840 * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */
841 if( (gl_version
[0] > version
[0]) || ((gl_version
[0] == version
[0]) && (gl_version
[2] >= version
[2])) ) {
844 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]);
847 if (extension
[len
] == ' ') len
++;
854 /***********************************************************************
855 * wglGetProcAddress (OPENGL32.@)
857 PROC WINAPI
wglGetProcAddress( LPCSTR name
)
859 struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
861 OpenGL_extension ext
;
862 const OpenGL_extension
*ext_ret
;
864 if (!name
) return NULL
;
866 /* Without an active context opengl32 doesn't know to what
867 * driver it has to dispatch wglGetProcAddress.
869 if (!get_current_context_ptr())
871 WARN("No active WGL context found\n");
876 ext_ret
= bsearch(&ext
, extension_registry
, extension_registry_size
, sizeof(ext
), compar
);
879 WARN("Function %s unknown\n", name
);
883 func_ptr
= (void **)&funcs
->ext
+ (ext_ret
- extension_registry
);
886 void *driver_func
= funcs
->wgl
.p_wglGetProcAddress( name
);
888 if (!is_extension_supported(ext_ret
->extension
))
891 static const struct { const char *name
, *alt
; } alternatives
[] =
893 { "glCopyTexSubImage3DEXT", "glCopyTexSubImage3D" }, /* needed by RuneScape */
894 { "glVertexAttribDivisor", "glVertexAttribDivisorARB"}, /* needed by Caffeine */
897 for (i
= 0; i
< ARRAY_SIZE(alternatives
); i
++)
899 if (strcmp( name
, alternatives
[i
].name
)) continue;
900 WARN("Extension %s required for %s not supported, trying %s\n",
901 ext_ret
->extension
, name
, alternatives
[i
].alt
);
902 return wglGetProcAddress( alternatives
[i
].alt
);
904 WARN("Extension %s required for %s not supported\n", ext_ret
->extension
, name
);
908 if (driver_func
== NULL
)
910 WARN("Function %s not supported by driver\n", name
);
913 *func_ptr
= driver_func
;
916 TRACE("returning %s -> %p\n", name
, ext_ret
->func
);
917 return ext_ret
->func
;
920 /***********************************************************************
921 * wglRealizeLayerPalette (OPENGL32.@)
923 BOOL WINAPI
wglRealizeLayerPalette(HDC hdc
,
931 /***********************************************************************
932 * wglSetLayerPaletteEntries (OPENGL32.@)
934 int WINAPI
wglSetLayerPaletteEntries(HDC hdc
,
938 const COLORREF
*pcr
) {
939 FIXME("(): stub!\n");
944 /***********************************************************************
945 * wglSwapLayerBuffers (OPENGL32.@)
947 BOOL WINAPI
wglSwapLayerBuffers(HDC hdc
,
949 TRACE("(%p, %08x)\n", hdc
, fuPlanes
);
951 if (fuPlanes
& WGL_SWAP_MAIN_PLANE
) {
952 if (!wglSwapBuffers( hdc
)) return FALSE
;
953 fuPlanes
&= ~WGL_SWAP_MAIN_PLANE
;
957 WARN("Following layers unhandled: %08x\n", fuPlanes
);
963 /***********************************************************************
966 * Provided by the WGL_ARB_render_texture extension.
968 BOOL WINAPI
wglBindTexImageARB( HPBUFFERARB handle
, int buffer
)
970 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
973 if (!ptr
) return FALSE
;
974 ret
= ptr
->funcs
->ext
.p_wglBindTexImageARB( ptr
->u
.pbuffer
, buffer
);
975 release_handle_ptr( ptr
);
979 /***********************************************************************
980 * wglReleaseTexImageARB
982 * Provided by the WGL_ARB_render_texture extension.
984 BOOL WINAPI
wglReleaseTexImageARB( HPBUFFERARB handle
, int buffer
)
986 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
989 if (!ptr
) return FALSE
;
990 ret
= ptr
->funcs
->ext
.p_wglReleaseTexImageARB( ptr
->u
.pbuffer
, buffer
);
991 release_handle_ptr( ptr
);
995 /***********************************************************************
996 * wglSetPbufferAttribARB
998 * Provided by the WGL_ARB_render_texture extension.
1000 BOOL WINAPI
wglSetPbufferAttribARB( HPBUFFERARB handle
, const int *attribs
)
1002 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1005 if (!ptr
) return FALSE
;
1006 ret
= ptr
->funcs
->ext
.p_wglSetPbufferAttribARB( ptr
->u
.pbuffer
, attribs
);
1007 release_handle_ptr( ptr
);
1011 /***********************************************************************
1012 * wglCreatePbufferARB
1014 * Provided by the WGL_ARB_pbuffer extension.
1016 HPBUFFERARB WINAPI
wglCreatePbufferARB( HDC hdc
, int format
, int width
, int height
, const int *attribs
)
1019 struct wgl_pbuffer
*pbuffer
;
1020 struct opengl_funcs
*funcs
= get_dc_funcs( hdc
);
1022 if (!funcs
|| !funcs
->ext
.p_wglCreatePbufferARB
) return 0;
1023 if (!(pbuffer
= funcs
->ext
.p_wglCreatePbufferARB( hdc
, format
, width
, height
, attribs
))) return 0;
1024 ret
= alloc_handle( HANDLE_PBUFFER
, funcs
, pbuffer
);
1025 if (!ret
) funcs
->ext
.p_wglDestroyPbufferARB( pbuffer
);
1029 /***********************************************************************
1030 * wglGetPbufferDCARB
1032 * Provided by the WGL_ARB_pbuffer extension.
1034 HDC WINAPI
wglGetPbufferDCARB( HPBUFFERARB handle
)
1036 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1040 ret
= ptr
->funcs
->ext
.p_wglGetPbufferDCARB( ptr
->u
.pbuffer
);
1041 release_handle_ptr( ptr
);
1045 /***********************************************************************
1046 * wglReleasePbufferDCARB
1048 * Provided by the WGL_ARB_pbuffer extension.
1050 int WINAPI
wglReleasePbufferDCARB( HPBUFFERARB handle
, HDC hdc
)
1052 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1055 if (!ptr
) return FALSE
;
1056 ret
= ptr
->funcs
->ext
.p_wglReleasePbufferDCARB( ptr
->u
.pbuffer
, hdc
);
1057 release_handle_ptr( ptr
);
1061 /***********************************************************************
1062 * wglDestroyPbufferARB
1064 * Provided by the WGL_ARB_pbuffer extension.
1066 BOOL WINAPI
wglDestroyPbufferARB( HPBUFFERARB handle
)
1068 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1070 if (!ptr
) return FALSE
;
1071 ptr
->funcs
->ext
.p_wglDestroyPbufferARB( ptr
->u
.pbuffer
);
1072 free_handle_ptr( ptr
);
1076 /***********************************************************************
1077 * wglQueryPbufferARB
1079 * Provided by the WGL_ARB_pbuffer extension.
1081 BOOL WINAPI
wglQueryPbufferARB( HPBUFFERARB handle
, int attrib
, int *value
)
1083 struct wgl_handle
*ptr
= get_handle_ptr( handle
, HANDLE_PBUFFER
);
1086 if (!ptr
) return FALSE
;
1087 ret
= ptr
->funcs
->ext
.p_wglQueryPbufferARB( ptr
->u
.pbuffer
, attrib
, value
);
1088 release_handle_ptr( ptr
);
1092 /***********************************************************************
1093 * wglUseFontBitmaps_common
1095 static BOOL
wglUseFontBitmaps_common( HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
, BOOL unicode
)
1097 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1099 unsigned int glyph
, size
= 0;
1100 void *bitmap
= NULL
, *gl_bitmap
= NULL
;
1104 funcs
->gl
.p_glGetIntegerv(GL_UNPACK_ALIGNMENT
, &org_alignment
);
1105 funcs
->gl
.p_glPixelStorei(GL_UNPACK_ALIGNMENT
, 4);
1107 for (glyph
= first
; glyph
< first
+ count
; glyph
++) {
1108 unsigned int needed_size
, height
, width
, width_int
;
1111 needed_size
= GetGlyphOutlineW(hdc
, glyph
, GGO_BITMAP
, &gm
, 0, NULL
, &identity
);
1113 needed_size
= GetGlyphOutlineA(hdc
, glyph
, GGO_BITMAP
, &gm
, 0, NULL
, &identity
);
1115 TRACE("Glyph: %3d / List: %d size %d\n", glyph
, listBase
, needed_size
);
1116 if (needed_size
== GDI_ERROR
) {
1121 if (needed_size
> size
) {
1123 HeapFree(GetProcessHeap(), 0, bitmap
);
1124 HeapFree(GetProcessHeap(), 0, gl_bitmap
);
1125 bitmap
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, size
);
1126 gl_bitmap
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, size
);
1128 if (needed_size
!= 0) {
1130 ret
= (GetGlyphOutlineW(hdc
, glyph
, GGO_BITMAP
, &gm
,
1131 size
, bitmap
, &identity
) != GDI_ERROR
);
1133 ret
= (GetGlyphOutlineA(hdc
, glyph
, GGO_BITMAP
, &gm
,
1134 size
, bitmap
, &identity
) != GDI_ERROR
);
1138 if (TRACE_ON(wgl
)) {
1139 unsigned int bitmask
;
1140 unsigned char *bitmap_
= bitmap
;
1142 TRACE(" - bbox: %d x %d\n", gm
.gmBlackBoxX
, gm
.gmBlackBoxY
);
1143 TRACE(" - origin: (%d, %d)\n", gm
.gmptGlyphOrigin
.x
, gm
.gmptGlyphOrigin
.y
);
1144 TRACE(" - increment: %d - %d\n", gm
.gmCellIncX
, gm
.gmCellIncY
);
1145 if (needed_size
!= 0) {
1146 TRACE(" - bitmap:\n");
1147 for (height
= 0; height
< gm
.gmBlackBoxY
; height
++) {
1149 for (width
= 0, bitmask
= 0x80; width
< gm
.gmBlackBoxX
; width
++, bitmask
>>= 1) {
1154 if (*bitmap_
& bitmask
)
1159 bitmap_
+= (4 - ((UINT_PTR
)bitmap_
& 0x03));
1165 /* In OpenGL, the bitmap is drawn from the bottom to the top... So we need to invert the
1166 * glyph for it to be drawn properly.
1168 if (needed_size
!= 0) {
1169 width_int
= (gm
.gmBlackBoxX
+ 31) / 32;
1170 for (height
= 0; height
< gm
.gmBlackBoxY
; height
++) {
1171 for (width
= 0; width
< width_int
; width
++) {
1172 ((int *) gl_bitmap
)[(gm
.gmBlackBoxY
- height
- 1) * width_int
+ width
] =
1173 ((int *) bitmap
)[height
* width_int
+ width
];
1178 funcs
->gl
.p_glNewList(listBase
++, GL_COMPILE
);
1179 if (needed_size
!= 0) {
1180 funcs
->gl
.p_glBitmap(gm
.gmBlackBoxX
, gm
.gmBlackBoxY
,
1181 0 - gm
.gmptGlyphOrigin
.x
, (int) gm
.gmBlackBoxY
- gm
.gmptGlyphOrigin
.y
,
1182 gm
.gmCellIncX
, gm
.gmCellIncY
,
1185 /* This is the case of 'empty' glyphs like the space character */
1186 funcs
->gl
.p_glBitmap(0, 0, 0, 0, gm
.gmCellIncX
, gm
.gmCellIncY
, NULL
);
1188 funcs
->gl
.p_glEndList();
1191 funcs
->gl
.p_glPixelStorei(GL_UNPACK_ALIGNMENT
, org_alignment
);
1192 HeapFree(GetProcessHeap(), 0, bitmap
);
1193 HeapFree(GetProcessHeap(), 0, gl_bitmap
);
1197 /***********************************************************************
1198 * wglUseFontBitmapsA (OPENGL32.@)
1200 BOOL WINAPI
wglUseFontBitmapsA(HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
)
1202 return wglUseFontBitmaps_common( hdc
, first
, count
, listBase
, FALSE
);
1205 /***********************************************************************
1206 * wglUseFontBitmapsW (OPENGL32.@)
1208 BOOL WINAPI
wglUseFontBitmapsW(HDC hdc
, DWORD first
, DWORD count
, DWORD listBase
)
1210 return wglUseFontBitmaps_common( hdc
, first
, count
, listBase
, TRUE
);
1213 static void fixed_to_double(POINTFX fixed
, UINT em_size
, GLdouble vertex
[3])
1215 vertex
[0] = (fixed
.x
.value
+ (GLdouble
)fixed
.x
.fract
/ (1 << 16)) / em_size
;
1216 vertex
[1] = (fixed
.y
.value
+ (GLdouble
)fixed
.y
.fract
/ (1 << 16)) / em_size
;
1220 static void WINAPI
tess_callback_vertex(GLvoid
*vertex
)
1222 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1223 GLdouble
*dbl
= vertex
;
1224 TRACE("%f, %f, %f\n", dbl
[0], dbl
[1], dbl
[2]);
1225 funcs
->gl
.p_glVertex3dv(vertex
);
1228 static void WINAPI
tess_callback_begin(GLenum which
)
1230 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1231 TRACE("%d\n", which
);
1232 funcs
->gl
.p_glBegin(which
);
1235 static void WINAPI
tess_callback_end(void)
1237 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1239 funcs
->gl
.p_glEnd();
1242 typedef struct _bezier_vector
{
1247 static double bezier_deviation_squared(const bezier_vector
*p
)
1249 bezier_vector deviation
;
1250 bezier_vector vertex
;
1255 vertex
.x
= (p
[0].x
+ p
[1].x
*2 + p
[2].x
)/4 - p
[0].x
;
1256 vertex
.y
= (p
[0].y
+ p
[1].y
*2 + p
[2].y
)/4 - p
[0].y
;
1258 base
.x
= p
[2].x
- p
[0].x
;
1259 base
.y
= p
[2].y
- p
[0].y
;
1261 base_length
= sqrt(base
.x
*base
.x
+ base
.y
*base
.y
);
1262 base
.x
/= base_length
;
1263 base
.y
/= base_length
;
1265 dot
= base
.x
*vertex
.x
+ base
.y
*vertex
.y
;
1266 dot
= min(max(dot
, 0.0), base_length
);
1270 deviation
.x
= vertex
.x
-base
.x
;
1271 deviation
.y
= vertex
.y
-base
.y
;
1273 return deviation
.x
*deviation
.x
+ deviation
.y
*deviation
.y
;
1276 static int bezier_approximate(const bezier_vector
*p
, bezier_vector
*points
, FLOAT deviation
)
1278 bezier_vector first_curve
[3];
1279 bezier_vector second_curve
[3];
1280 bezier_vector vertex
;
1283 if(bezier_deviation_squared(p
) <= deviation
*deviation
)
1290 vertex
.x
= (p
[0].x
+ p
[1].x
*2 + p
[2].x
)/4;
1291 vertex
.y
= (p
[0].y
+ p
[1].y
*2 + p
[2].y
)/4;
1293 first_curve
[0] = p
[0];
1294 first_curve
[1].x
= (p
[0].x
+ p
[1].x
)/2;
1295 first_curve
[1].y
= (p
[0].y
+ p
[1].y
)/2;
1296 first_curve
[2] = vertex
;
1298 second_curve
[0] = vertex
;
1299 second_curve
[1].x
= (p
[2].x
+ p
[1].x
)/2;
1300 second_curve
[1].y
= (p
[2].y
+ p
[1].y
)/2;
1301 second_curve
[2] = p
[2];
1303 total_vertices
= bezier_approximate(first_curve
, points
, deviation
);
1305 points
+= total_vertices
;
1306 total_vertices
+= bezier_approximate(second_curve
, points
, deviation
);
1307 return total_vertices
;
1310 /***********************************************************************
1311 * wglUseFontOutlines_common
1313 static BOOL
wglUseFontOutlines_common(HDC hdc
,
1320 LPGLYPHMETRICSFLOAT lpgmf
,
1323 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1325 GLUtesselator
*tess
= NULL
;
1327 HFONT old_font
, unscaled_font
;
1328 UINT em_size
= 1024;
1331 TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc
, first
, count
,
1332 listBase
, deviation
, extrusion
, format
, lpgmf
, unicode
? "W" : "A");
1334 if(deviation
<= 0.0)
1335 deviation
= 1.0/em_size
;
1337 if(format
== WGL_FONT_POLYGONS
)
1339 tess
= gluNewTess();
1342 ERR("glu32 is required for this function but isn't available\n");
1345 gluTessCallback(tess
, GLU_TESS_VERTEX
, (void *)tess_callback_vertex
);
1346 gluTessCallback(tess
, GLU_TESS_BEGIN
, (void *)tess_callback_begin
);
1347 gluTessCallback(tess
, GLU_TESS_END
, tess_callback_end
);
1350 GetObjectW(GetCurrentObject(hdc
, OBJ_FONT
), sizeof(lf
), &lf
);
1351 rc
.left
= rc
.right
= rc
.bottom
= 0;
1353 DPtoLP(hdc
, (POINT
*)&rc
, 2);
1354 lf
.lfHeight
= -abs(rc
.top
- rc
.bottom
);
1355 lf
.lfOrientation
= lf
.lfEscapement
= 0;
1356 unscaled_font
= CreateFontIndirectW(&lf
);
1357 old_font
= SelectObject(hdc
, unscaled_font
);
1359 for (glyph
= first
; glyph
< first
+ count
; glyph
++)
1364 TTPOLYGONHEADER
*pph
;
1366 GLdouble
*vertices
= NULL
;
1367 int vertex_total
= -1;
1370 needed
= GetGlyphOutlineW(hdc
, glyph
, GGO_NATIVE
, &gm
, 0, NULL
, &identity
);
1372 needed
= GetGlyphOutlineA(hdc
, glyph
, GGO_NATIVE
, &gm
, 0, NULL
, &identity
);
1374 if(needed
== GDI_ERROR
)
1377 buf
= HeapAlloc(GetProcessHeap(), 0, needed
);
1380 GetGlyphOutlineW(hdc
, glyph
, GGO_NATIVE
, &gm
, needed
, buf
, &identity
);
1382 GetGlyphOutlineA(hdc
, glyph
, GGO_NATIVE
, &gm
, needed
, buf
, &identity
);
1384 TRACE("glyph %d\n", glyph
);
1388 lpgmf
->gmfBlackBoxX
= (float)gm
.gmBlackBoxX
/ em_size
;
1389 lpgmf
->gmfBlackBoxY
= (float)gm
.gmBlackBoxY
/ em_size
;
1390 lpgmf
->gmfptGlyphOrigin
.x
= (float)gm
.gmptGlyphOrigin
.x
/ em_size
;
1391 lpgmf
->gmfptGlyphOrigin
.y
= (float)gm
.gmptGlyphOrigin
.y
/ em_size
;
1392 lpgmf
->gmfCellIncX
= (float)gm
.gmCellIncX
/ em_size
;
1393 lpgmf
->gmfCellIncY
= (float)gm
.gmCellIncY
/ em_size
;
1395 TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf
->gmfBlackBoxX
, lpgmf
->gmfBlackBoxY
,
1396 lpgmf
->gmfptGlyphOrigin
.x
, lpgmf
->gmfptGlyphOrigin
.y
, lpgmf
->gmfCellIncX
, lpgmf
->gmfCellIncY
);
1400 funcs
->gl
.p_glNewList(listBase
++, GL_COMPILE
);
1401 funcs
->gl
.p_glFrontFace(GL_CCW
);
1402 if(format
== WGL_FONT_POLYGONS
)
1404 funcs
->gl
.p_glNormal3d(0.0, 0.0, 1.0);
1405 gluTessNormal(tess
, 0, 0, 1);
1406 gluTessBeginPolygon(tess
, NULL
);
1411 if(vertex_total
!= -1)
1412 vertices
= HeapAlloc(GetProcessHeap(), 0, vertex_total
* 3 * sizeof(GLdouble
));
1415 pph
= (TTPOLYGONHEADER
*)buf
;
1416 while((BYTE
*)pph
< buf
+ needed
)
1418 GLdouble previous
[3];
1419 fixed_to_double(pph
->pfxStart
, em_size
, previous
);
1422 TRACE("\tstart %d, %d\n", pph
->pfxStart
.x
.value
, pph
->pfxStart
.y
.value
);
1424 if(format
== WGL_FONT_POLYGONS
)
1425 gluTessBeginContour(tess
);
1427 funcs
->gl
.p_glBegin(GL_LINE_LOOP
);
1431 fixed_to_double(pph
->pfxStart
, em_size
, vertices
);
1432 if(format
== WGL_FONT_POLYGONS
)
1433 gluTessVertex(tess
, vertices
, vertices
);
1435 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1440 ppc
= (TTPOLYCURVE
*)((char*)pph
+ sizeof(*pph
));
1441 while((char*)ppc
< (char*)pph
+ pph
->cb
)
1446 switch(ppc
->wType
) {
1448 for(i
= 0; i
< ppc
->cpfx
; i
++)
1452 TRACE("\t\tline to %d, %d\n",
1453 ppc
->apfx
[i
].x
.value
, ppc
->apfx
[i
].y
.value
);
1454 fixed_to_double(ppc
->apfx
[i
], em_size
, vertices
);
1455 if(format
== WGL_FONT_POLYGONS
)
1456 gluTessVertex(tess
, vertices
, vertices
);
1458 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1461 fixed_to_double(ppc
->apfx
[i
], em_size
, previous
);
1466 case TT_PRIM_QSPLINE
:
1467 for(i
= 0; i
< ppc
->cpfx
-1; i
++)
1469 bezier_vector curve
[3];
1470 bezier_vector
*points
;
1471 GLdouble curve_vertex
[3];
1474 TRACE("\t\tcurve %d,%d %d,%d\n",
1475 ppc
->apfx
[i
].x
.value
, ppc
->apfx
[i
].y
.value
,
1476 ppc
->apfx
[i
+ 1].x
.value
, ppc
->apfx
[i
+ 1].y
.value
);
1478 curve
[0].x
= previous
[0];
1479 curve
[0].y
= previous
[1];
1480 fixed_to_double(ppc
->apfx
[i
], em_size
, curve_vertex
);
1481 curve
[1].x
= curve_vertex
[0];
1482 curve
[1].y
= curve_vertex
[1];
1483 fixed_to_double(ppc
->apfx
[i
+ 1], em_size
, curve_vertex
);
1484 curve
[2].x
= curve_vertex
[0];
1485 curve
[2].y
= curve_vertex
[1];
1488 curve
[2].x
= (curve
[1].x
+ curve
[2].x
)/2;
1489 curve
[2].y
= (curve
[1].y
+ curve
[2].y
)/2;
1491 num
= bezier_approximate(curve
, NULL
, deviation
);
1492 points
= HeapAlloc(GetProcessHeap(), 0, num
*sizeof(bezier_vector
));
1493 num
= bezier_approximate(curve
, points
, deviation
);
1494 vertex_total
+= num
;
1497 for(j
=0; j
<num
; j
++)
1499 TRACE("\t\t\tvertex at %f,%f\n", points
[j
].x
, points
[j
].y
);
1500 vertices
[0] = points
[j
].x
;
1501 vertices
[1] = points
[j
].y
;
1503 if(format
== WGL_FONT_POLYGONS
)
1504 gluTessVertex(tess
, vertices
, vertices
);
1506 funcs
->gl
.p_glVertex3d(vertices
[0], vertices
[1], vertices
[2]);
1510 HeapFree(GetProcessHeap(), 0, points
);
1511 previous
[0] = curve
[2].x
;
1512 previous
[1] = curve
[2].y
;
1516 ERR("\t\tcurve type = %d\n", ppc
->wType
);
1517 if(format
== WGL_FONT_POLYGONS
)
1518 gluTessEndContour(tess
);
1520 funcs
->gl
.p_glEnd();
1524 ppc
= (TTPOLYCURVE
*)((char*)ppc
+ sizeof(*ppc
) +
1525 (ppc
->cpfx
- 1) * sizeof(POINTFX
));
1527 if(format
== WGL_FONT_POLYGONS
)
1528 gluTessEndContour(tess
);
1530 funcs
->gl
.p_glEnd();
1531 pph
= (TTPOLYGONHEADER
*)((char*)pph
+ pph
->cb
);
1536 if(format
== WGL_FONT_POLYGONS
)
1537 gluTessEndPolygon(tess
);
1538 funcs
->gl
.p_glTranslated((GLdouble
)gm
.gmCellIncX
/ em_size
, (GLdouble
)gm
.gmCellIncY
/ em_size
, 0.0);
1539 funcs
->gl
.p_glEndList();
1540 HeapFree(GetProcessHeap(), 0, buf
);
1541 HeapFree(GetProcessHeap(), 0, vertices
);
1545 DeleteObject(SelectObject(hdc
, old_font
));
1546 if(format
== WGL_FONT_POLYGONS
)
1547 gluDeleteTess(tess
);
1552 /***********************************************************************
1553 * wglUseFontOutlinesA (OPENGL32.@)
1555 BOOL WINAPI
wglUseFontOutlinesA(HDC hdc
,
1562 LPGLYPHMETRICSFLOAT lpgmf
)
1564 return wglUseFontOutlines_common(hdc
, first
, count
, listBase
, deviation
, extrusion
, format
, lpgmf
, FALSE
);
1567 /***********************************************************************
1568 * wglUseFontOutlinesW (OPENGL32.@)
1570 BOOL WINAPI
wglUseFontOutlinesW(HDC hdc
,
1577 LPGLYPHMETRICSFLOAT lpgmf
)
1579 return wglUseFontOutlines_common(hdc
, first
, count
, listBase
, deviation
, extrusion
, format
, lpgmf
, TRUE
);
1582 /***********************************************************************
1583 * glDebugEntry (OPENGL32.@)
1585 GLint WINAPI
glDebugEntry( GLint unknown1
, GLint unknown2
)
1590 static GLubyte
*filter_extensions_list(const char *extensions
, const char *disabled
)
1595 p
= str
= HeapAlloc(GetProcessHeap(), 0, strlen(extensions
) + 2);
1599 TRACE( "GL_EXTENSIONS:\n" );
1603 while (*extensions
== ' ')
1607 if (!(end
= strchr(extensions
, ' ')))
1608 end
= extensions
+ strlen(extensions
);
1609 memcpy(p
, extensions
, end
- extensions
);
1610 p
[end
- extensions
] = 0;
1611 if (!has_extension(disabled
, p
, strlen(p
)))
1613 TRACE("++ %s\n", p
);
1614 p
+= end
- extensions
;
1619 TRACE("-- %s (disabled by config)\n", p
);
1624 return (GLubyte
*)str
;
1627 static GLuint
*filter_extensions_index(const char *disabled
)
1629 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1630 const char *ext
, *end
, *gl_ext
;
1631 GLuint
*disabled_exts
, *new_disabled_exts
;
1632 unsigned int i
= 0, j
, disabled_size
;
1633 GLint extensions_count
;
1635 if (!funcs
->ext
.p_glGetStringi
)
1637 void **func_ptr
= (void **)&funcs
->ext
.p_glGetStringi
;
1639 *func_ptr
= funcs
->wgl
.p_wglGetProcAddress("glGetStringi");
1640 if (!funcs
->ext
.p_glGetStringi
)
1644 funcs
->gl
.p_glGetIntegerv(GL_NUM_EXTENSIONS
, &extensions_count
);
1646 disabled_exts
= HeapAlloc(GetProcessHeap(), 0, disabled_size
* sizeof(*disabled_exts
));
1650 TRACE( "GL_EXTENSIONS:\n" );
1652 for (j
= 0; j
< extensions_count
; ++j
)
1654 gl_ext
= (const char *)funcs
->ext
.p_glGetStringi(GL_EXTENSIONS
, j
);
1662 TRACE("++ %s\n", gl_ext
);
1665 if (!(end
= strchr(ext
, ' ')))
1666 end
= ext
+ strlen(ext
);
1668 if (!strncmp(gl_ext
, ext
, end
- ext
) && !gl_ext
[end
- ext
])
1670 if (i
+ 1 == disabled_size
)
1673 new_disabled_exts
= HeapReAlloc(GetProcessHeap(), 0, disabled_exts
,
1674 disabled_size
* sizeof(*disabled_exts
));
1675 if (!new_disabled_exts
)
1677 disabled_exts
[i
] = ~0u;
1678 return disabled_exts
;
1680 disabled_exts
= new_disabled_exts
;
1682 TRACE("-- %s (disabled by config)\n", gl_ext
);
1683 disabled_exts
[i
++] = j
;
1689 disabled_exts
[i
] = ~0u;
1690 return disabled_exts
;
1693 /* build the extension string by filtering out the disabled extensions */
1694 static BOOL
filter_extensions(const char *extensions
, GLubyte
**exts_list
, GLuint
**disabled_exts
)
1696 static const char *disabled
;
1704 /* @@ Wine registry key: HKCU\Software\Wine\OpenGL */
1705 if (!RegOpenKeyA( HKEY_CURRENT_USER
, "Software\\Wine\\OpenGL", &hkey
))
1707 if (!RegQueryValueExA( hkey
, "DisabledExtensions", 0, NULL
, NULL
, &size
))
1709 str
= HeapAlloc( GetProcessHeap(), 0, size
);
1710 if (RegQueryValueExA( hkey
, "DisabledExtensions", 0, NULL
, (BYTE
*)str
, &size
)) *str
= 0;
1712 RegCloseKey( hkey
);
1716 if (InterlockedCompareExchangePointer( (void **)&disabled
, str
, NULL
))
1717 HeapFree( GetProcessHeap(), 0, str
);
1725 if (extensions
&& !*exts_list
)
1726 *exts_list
= filter_extensions_list(extensions
, disabled
);
1728 if (!*disabled_exts
)
1729 *disabled_exts
= filter_extensions_index(disabled
);
1731 return (exts_list
&& *exts_list
) || *disabled_exts
;
1734 /***********************************************************************
1735 * glGetString (OPENGL32.@)
1737 const GLubyte
* WINAPI
glGetString( GLenum name
)
1739 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1740 const GLubyte
*ret
= funcs
->gl
.p_glGetString( name
);
1742 if (name
== GL_EXTENSIONS
&& ret
)
1744 struct wgl_handle
*ptr
= get_current_context_ptr();
1745 if (ptr
->u
.context
->extensions
||
1746 filter_extensions((const char *)ret
, &ptr
->u
.context
->extensions
, &ptr
->u
.context
->disabled_exts
))
1747 ret
= ptr
->u
.context
->extensions
;
1752 /* wrapper for glDebugMessageCallback* functions */
1753 static void gl_debug_message_callback( GLenum source
, GLenum type
, GLuint id
, GLenum severity
,
1754 GLsizei length
, const GLchar
*message
,const void *userParam
)
1756 struct wgl_handle
*ptr
= (struct wgl_handle
*)userParam
;
1757 if (!ptr
->u
.context
->debug_callback
) return;
1758 ptr
->u
.context
->debug_callback( source
, type
, id
, severity
, length
, message
, ptr
->u
.context
->debug_user
);
1761 /***********************************************************************
1762 * glDebugMessageCallback
1764 void WINAPI
glDebugMessageCallback( GLDEBUGPROC callback
, const void *userParam
)
1766 struct wgl_handle
*ptr
= get_current_context_ptr();
1767 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1769 TRACE( "(%p, %p)\n", callback
, userParam
);
1771 ptr
->u
.context
->debug_callback
= callback
;
1772 ptr
->u
.context
->debug_user
= userParam
;
1773 funcs
->ext
.p_glDebugMessageCallback( gl_debug_message_callback
, ptr
);
1776 /***********************************************************************
1777 * glDebugMessageCallbackAMD
1779 void WINAPI
glDebugMessageCallbackAMD( GLDEBUGPROCAMD callback
, void *userParam
)
1781 struct wgl_handle
*ptr
= get_current_context_ptr();
1782 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1784 TRACE( "(%p, %p)\n", callback
, userParam
);
1786 ptr
->u
.context
->debug_callback
= callback
;
1787 ptr
->u
.context
->debug_user
= userParam
;
1788 funcs
->ext
.p_glDebugMessageCallbackAMD( gl_debug_message_callback
, ptr
);
1791 /***********************************************************************
1792 * glDebugMessageCallbackARB
1794 void WINAPI
glDebugMessageCallbackARB( GLDEBUGPROCARB callback
, const void *userParam
)
1796 struct wgl_handle
*ptr
= get_current_context_ptr();
1797 const struct opengl_funcs
*funcs
= NtCurrentTeb()->glTable
;
1799 TRACE( "(%p, %p)\n", callback
, userParam
);
1801 ptr
->u
.context
->debug_callback
= callback
;
1802 ptr
->u
.context
->debug_user
= userParam
;
1803 funcs
->ext
.p_glDebugMessageCallbackARB( gl_debug_message_callback
, ptr
);
1806 /***********************************************************************
1807 * OpenGL initialisation routine
1809 BOOL WINAPI
DllMain( HINSTANCE hinst
, DWORD reason
, LPVOID reserved
)
1813 case DLL_PROCESS_ATTACH
:
1814 NtCurrentTeb()->glTable
= &null_opengl_funcs
;
1816 case DLL_THREAD_ATTACH
:
1817 NtCurrentTeb()->glTable
= &null_opengl_funcs
;