2 * GDI Device Context functions
4 * Copyright 1993 Alexandre Julliard
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include "wine/winuser16.h"
33 #include "wine/unicode.h"
34 #include "wine/debug.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(dc
);
38 static BOOL
DC_DeleteObject( HGDIOBJ handle
, void *obj
);
40 static const struct gdi_obj_funcs dc_funcs
=
42 NULL
, /* pSelectObject */
43 NULL
, /* pGetObject16 */
44 NULL
, /* pGetObjectA */
45 NULL
, /* pGetObjectW */
46 NULL
, /* pUnrealizeObject */
47 DC_DeleteObject
/* pDeleteObject */
50 /***********************************************************************
53 DC
*DC_AllocDC( const DC_FUNCTIONS
*funcs
, WORD magic
)
58 if (!(dc
= GDI_AllocObject( sizeof(*dc
), magic
, (HGDIOBJ
*)&hdc
, &dc_funcs
))) return NULL
;
79 dc
->hPen
= GetStockObject( BLACK_PEN
);
80 dc
->hBrush
= GetStockObject( WHITE_BRUSH
);
81 dc
->hFont
= GetStockObject( SYSTEM_FONT
);
84 dc
->hPalette
= GetStockObject( DEFAULT_PALETTE
);
86 dc
->ROPmode
= R2_COPYPEN
;
87 dc
->polyFillMode
= ALTERNATE
;
88 dc
->stretchBltMode
= BLACKONWHITE
;
89 dc
->relAbsMode
= ABSOLUTE
;
90 dc
->backgroundMode
= OPAQUE
;
91 dc
->backgroundColor
= RGB( 255, 255, 255 );
92 dc
->textColor
= RGB( 0, 0, 0 );
95 dc
->textAlign
= TA_LEFT
| TA_TOP
| TA_NOUPDATECP
;
97 dc
->breakTotalExtra
= 0;
101 dc
->totalExtent
.left
= 0;
102 dc
->totalExtent
.top
= 0;
103 dc
->totalExtent
.right
= 0;
104 dc
->totalExtent
.bottom
= 0;
105 dc
->bitsPerPixel
= 1;
106 dc
->MapMode
= MM_TEXT
;
107 dc
->GraphicsMode
= GM_COMPATIBLE
;
108 dc
->pAbortProc
= NULL
;
111 dc
->ArcDirection
= AD_COUNTERCLOCKWISE
;
112 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
113 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
114 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
115 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
116 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
117 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
118 dc
->xformWorld2Vport
= dc
->xformWorld2Wnd
;
119 dc
->xformVport2World
= dc
->xformWorld2Wnd
;
120 dc
->vport2WorldValid
= TRUE
;
121 PATH_InitGdiPath(&dc
->path
);
127 /***********************************************************************
130 DC
*DC_GetDCPtr( HDC hdc
)
132 GDIOBJHDR
*ptr
= GDI_GetObjPtr( hdc
, MAGIC_DONTCARE
);
133 if (!ptr
) return NULL
;
134 if ((GDIMAGIC(ptr
->wMagic
) == DC_MAGIC
) ||
135 (GDIMAGIC(ptr
->wMagic
) == MEMORY_DC_MAGIC
) ||
136 (GDIMAGIC(ptr
->wMagic
) == METAFILE_DC_MAGIC
) ||
137 (GDIMAGIC(ptr
->wMagic
) == ENHMETAFILE_DC_MAGIC
))
139 GDI_ReleaseObj( hdc
);
140 SetLastError( ERROR_INVALID_HANDLE
);
144 /***********************************************************************
147 * Retrieve a DC ptr while making sure the visRgn is updated.
148 * This function may call up to USER so the GDI lock should _not_
149 * be held when calling it.
151 DC
*DC_GetDCUpdate( HDC hdc
)
153 DC
*dc
= DC_GetDCPtr( hdc
);
154 if (!dc
) return NULL
;
155 while (dc
->flags
& DC_DIRTY
)
157 DCHOOKPROC proc
= dc
->hookThunk
;
158 dc
->flags
&= ~DC_DIRTY
;
161 DWORD data
= dc
->dwHookData
;
162 GDI_ReleaseObj( hdc
);
163 proc( HDC_16(hdc
), DCHC_INVALIDVISRGN
, data
, 0 );
164 if (!(dc
= DC_GetDCPtr( hdc
))) break;
165 /* otherwise restart the loop in case it became dirty again in the meantime */
172 /***********************************************************************
175 static BOOL
DC_DeleteObject( HGDIOBJ handle
, void *obj
)
177 GDI_ReleaseObj( handle
);
178 return DeleteDC( handle
);
182 /***********************************************************************
185 * Setup device-specific DC values for a newly created DC.
187 void DC_InitDC( DC
* dc
)
189 if (dc
->funcs
->pRealizeDefaultPalette
) dc
->funcs
->pRealizeDefaultPalette( dc
->physDev
);
190 SetTextColor( dc
->hSelf
, dc
->textColor
);
191 SetBkColor( dc
->hSelf
, dc
->backgroundColor
);
192 SelectObject( dc
->hSelf
, dc
->hPen
);
193 SelectObject( dc
->hSelf
, dc
->hBrush
);
194 SelectObject( dc
->hSelf
, dc
->hFont
);
195 CLIPPING_UpdateGCRegion( dc
);
199 /***********************************************************************
202 * Computes the inverse of the transformation xformSrc and stores it to
203 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
206 static BOOL
DC_InvertXform( const XFORM
*xformSrc
, XFORM
*xformDest
)
210 determinant
= xformSrc
->eM11
*xformSrc
->eM22
-
211 xformSrc
->eM12
*xformSrc
->eM21
;
212 if (determinant
> -1e-12 && determinant
< 1e-12)
215 xformDest
->eM11
= xformSrc
->eM22
/ determinant
;
216 xformDest
->eM12
= -xformSrc
->eM12
/ determinant
;
217 xformDest
->eM21
= -xformSrc
->eM21
/ determinant
;
218 xformDest
->eM22
= xformSrc
->eM11
/ determinant
;
219 xformDest
->eDx
= -xformSrc
->eDx
* xformDest
->eM11
-
220 xformSrc
->eDy
* xformDest
->eM21
;
221 xformDest
->eDy
= -xformSrc
->eDx
* xformDest
->eM12
-
222 xformSrc
->eDy
* xformDest
->eM22
;
228 /***********************************************************************
231 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
232 * fields of the specified DC by creating a transformation that
233 * represents the current mapping mode and combining it with the DC's
234 * world transform. This function should be called whenever the
235 * parameters associated with the mapping mode (window and viewport
236 * extents and origins) or the world transform change.
238 void DC_UpdateXforms( DC
*dc
)
240 XFORM xformWnd2Vport
;
241 FLOAT scaleX
, scaleY
;
243 /* Construct a transformation to do the window-to-viewport conversion */
244 scaleX
= (FLOAT
)dc
->vportExtX
/ (FLOAT
)dc
->wndExtX
;
245 scaleY
= (FLOAT
)dc
->vportExtY
/ (FLOAT
)dc
->wndExtY
;
246 xformWnd2Vport
.eM11
= scaleX
;
247 xformWnd2Vport
.eM12
= 0.0;
248 xformWnd2Vport
.eM21
= 0.0;
249 xformWnd2Vport
.eM22
= scaleY
;
250 xformWnd2Vport
.eDx
= (FLOAT
)dc
->vportOrgX
-
251 scaleX
* (FLOAT
)dc
->wndOrgX
;
252 xformWnd2Vport
.eDy
= (FLOAT
)dc
->vportOrgY
-
253 scaleY
* (FLOAT
)dc
->wndOrgY
;
255 /* Combine with the world transformation */
256 CombineTransform( &dc
->xformWorld2Vport
, &dc
->xformWorld2Wnd
,
259 /* Create inverse of world-to-viewport transformation */
260 dc
->vport2WorldValid
= DC_InvertXform( &dc
->xformWorld2Vport
,
261 &dc
->xformVport2World
);
263 /* Reselect the font back into the dc so that the font size
265 SelectObject(dc
->hSelf
, GetCurrentObject(dc
->hSelf
, OBJ_FONT
));
269 /***********************************************************************
270 * GetDCState (Not a Windows API)
272 HDC WINAPI
GetDCState( HDC hdc
)
277 if (!(dc
= DC_GetDCPtr( hdc
))) return 0;
278 if (!(newdc
= GDI_AllocObject( sizeof(DC
), GDIMAGIC(dc
->header
.wMagic
), &handle
, &dc_funcs
)))
280 GDI_ReleaseObj( hdc
);
283 TRACE("(%p): returning %p\n", hdc
, handle
);
285 newdc
->flags
= dc
->flags
| DC_SAVED
;
286 newdc
->hPen
= dc
->hPen
;
287 newdc
->hBrush
= dc
->hBrush
;
288 newdc
->hFont
= dc
->hFont
;
289 newdc
->hBitmap
= dc
->hBitmap
;
290 newdc
->hDevice
= dc
->hDevice
;
291 newdc
->hPalette
= dc
->hPalette
;
292 newdc
->totalExtent
= dc
->totalExtent
;
293 newdc
->bitsPerPixel
= dc
->bitsPerPixel
;
294 newdc
->ROPmode
= dc
->ROPmode
;
295 newdc
->polyFillMode
= dc
->polyFillMode
;
296 newdc
->stretchBltMode
= dc
->stretchBltMode
;
297 newdc
->relAbsMode
= dc
->relAbsMode
;
298 newdc
->backgroundMode
= dc
->backgroundMode
;
299 newdc
->backgroundColor
= dc
->backgroundColor
;
300 newdc
->textColor
= dc
->textColor
;
301 newdc
->brushOrgX
= dc
->brushOrgX
;
302 newdc
->brushOrgY
= dc
->brushOrgY
;
303 newdc
->textAlign
= dc
->textAlign
;
304 newdc
->charExtra
= dc
->charExtra
;
305 newdc
->breakTotalExtra
= dc
->breakTotalExtra
;
306 newdc
->breakCount
= dc
->breakCount
;
307 newdc
->breakExtra
= dc
->breakExtra
;
308 newdc
->breakRem
= dc
->breakRem
;
309 newdc
->MapMode
= dc
->MapMode
;
310 newdc
->GraphicsMode
= dc
->GraphicsMode
;
311 newdc
->CursPosX
= dc
->CursPosX
;
312 newdc
->CursPosY
= dc
->CursPosY
;
313 newdc
->ArcDirection
= dc
->ArcDirection
;
314 newdc
->xformWorld2Wnd
= dc
->xformWorld2Wnd
;
315 newdc
->xformWorld2Vport
= dc
->xformWorld2Vport
;
316 newdc
->xformVport2World
= dc
->xformVport2World
;
317 newdc
->vport2WorldValid
= dc
->vport2WorldValid
;
318 newdc
->wndOrgX
= dc
->wndOrgX
;
319 newdc
->wndOrgY
= dc
->wndOrgY
;
320 newdc
->wndExtX
= dc
->wndExtX
;
321 newdc
->wndExtY
= dc
->wndExtY
;
322 newdc
->vportOrgX
= dc
->vportOrgX
;
323 newdc
->vportOrgY
= dc
->vportOrgY
;
324 newdc
->vportExtX
= dc
->vportExtX
;
325 newdc
->vportExtY
= dc
->vportExtY
;
327 newdc
->hSelf
= (HDC
)handle
;
328 newdc
->saveLevel
= 0;
330 PATH_InitGdiPath( &newdc
->path
);
332 newdc
->pAbortProc
= NULL
;
333 newdc
->hookThunk
= NULL
;
336 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
338 newdc
->hGCClipRgn
= newdc
->hVisRgn
= 0;
341 newdc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
342 CombineRgn( newdc
->hClipRgn
, dc
->hClipRgn
, 0, RGN_COPY
);
348 newdc
->gdiFont
= dc
->gdiFont
;
352 GDI_ReleaseObj( handle
);
353 GDI_ReleaseObj( hdc
);
358 /***********************************************************************
359 * SetDCState (Not a Windows API)
361 void WINAPI
SetDCState( HDC hdc
, HDC hdcs
)
365 if (!(dc
= DC_GetDCUpdate( hdc
))) return;
366 if (!(dcs
= DC_GetDCPtr( hdcs
)))
368 GDI_ReleaseObj( hdc
);
371 if (!dcs
->flags
& DC_SAVED
)
373 GDI_ReleaseObj( hdc
);
374 GDI_ReleaseObj( hdcs
);
377 TRACE("%p %p\n", hdc
, hdcs
);
379 dc
->flags
= dcs
->flags
& ~(DC_SAVED
| DC_DIRTY
);
380 dc
->hDevice
= dcs
->hDevice
;
381 dc
->totalExtent
= dcs
->totalExtent
;
382 dc
->ROPmode
= dcs
->ROPmode
;
383 dc
->polyFillMode
= dcs
->polyFillMode
;
384 dc
->stretchBltMode
= dcs
->stretchBltMode
;
385 dc
->relAbsMode
= dcs
->relAbsMode
;
386 dc
->backgroundMode
= dcs
->backgroundMode
;
387 dc
->backgroundColor
= dcs
->backgroundColor
;
388 dc
->textColor
= dcs
->textColor
;
389 dc
->brushOrgX
= dcs
->brushOrgX
;
390 dc
->brushOrgY
= dcs
->brushOrgY
;
391 dc
->textAlign
= dcs
->textAlign
;
392 dc
->charExtra
= dcs
->charExtra
;
393 dc
->breakTotalExtra
= dcs
->breakTotalExtra
;
394 dc
->breakCount
= dcs
->breakCount
;
395 dc
->breakExtra
= dcs
->breakExtra
;
396 dc
->breakRem
= dcs
->breakRem
;
397 dc
->MapMode
= dcs
->MapMode
;
398 dc
->GraphicsMode
= dcs
->GraphicsMode
;
399 dc
->CursPosX
= dcs
->CursPosX
;
400 dc
->CursPosY
= dcs
->CursPosY
;
401 dc
->ArcDirection
= dcs
->ArcDirection
;
402 dc
->xformWorld2Wnd
= dcs
->xformWorld2Wnd
;
403 dc
->xformWorld2Vport
= dcs
->xformWorld2Vport
;
404 dc
->xformVport2World
= dcs
->xformVport2World
;
405 dc
->vport2WorldValid
= dcs
->vport2WorldValid
;
407 dc
->wndOrgX
= dcs
->wndOrgX
;
408 dc
->wndOrgY
= dcs
->wndOrgY
;
409 dc
->wndExtX
= dcs
->wndExtX
;
410 dc
->wndExtY
= dcs
->wndExtY
;
411 dc
->vportOrgX
= dcs
->vportOrgX
;
412 dc
->vportOrgY
= dcs
->vportOrgY
;
413 dc
->vportExtX
= dcs
->vportExtX
;
414 dc
->vportExtY
= dcs
->vportExtY
;
416 if (GDIMAGIC(dc
->header
.wMagic
) != MEMORY_DC_MAGIC
) dc
->bitsPerPixel
= dcs
->bitsPerPixel
;
420 if (!dc
->hClipRgn
) dc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
421 CombineRgn( dc
->hClipRgn
, dcs
->hClipRgn
, 0, RGN_COPY
);
425 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
428 CLIPPING_UpdateGCRegion( dc
);
430 SelectObject( hdc
, dcs
->hBitmap
);
431 SelectObject( hdc
, dcs
->hBrush
);
432 SelectObject( hdc
, dcs
->hFont
);
433 SelectObject( hdc
, dcs
->hPen
);
434 SetBkColor( hdc
, dcs
->backgroundColor
);
435 SetTextColor( hdc
, dcs
->textColor
);
436 GDISelectPalette( hdc
, dcs
->hPalette
, FALSE
);
437 GDI_ReleaseObj( hdcs
);
438 GDI_ReleaseObj( hdc
);
442 /***********************************************************************
443 * GetDCState (GDI.179)
445 HDC16 WINAPI
GetDCState16( HDC16 hdc
)
447 return HDC_16( GetDCState( HDC_32(hdc
) ));
451 /***********************************************************************
452 * SetDCState (GDI.180)
454 void WINAPI
SetDCState16( HDC16 hdc
, HDC16 hdcs
)
456 SetDCState( HDC_32(hdc
), HDC_32(hdcs
) );
460 /***********************************************************************
463 INT WINAPI
SaveDC( HDC hdc
)
469 dc
= DC_GetDCPtr( hdc
);
472 if(dc
->funcs
->pSaveDC
)
474 ret
= dc
->funcs
->pSaveDC( dc
->physDev
);
475 GDI_ReleaseObj( hdc
);
479 if (!(hdcs
= GetDCState( hdc
)))
481 GDI_ReleaseObj( hdc
);
484 dcs
= DC_GetDCPtr( hdcs
);
486 /* Copy path. The reason why path saving / restoring is in SaveDC/
487 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
488 * functions are only in Win16 (which doesn't have paths) and that
489 * SetDCState doesn't allow us to signal an error (which can happen
490 * when copying paths).
492 if (!PATH_AssignGdiPath( &dcs
->path
, &dc
->path
))
494 GDI_ReleaseObj( hdc
);
495 GDI_ReleaseObj( hdcs
);
500 dcs
->header
.hNext
= dc
->header
.hNext
;
501 dc
->header
.hNext
= HDC_16(hdcs
);
502 TRACE("(%p): returning %d\n", hdc
, dc
->saveLevel
+1 );
503 ret
= ++dc
->saveLevel
;
504 GDI_ReleaseObj( hdcs
);
505 GDI_ReleaseObj( hdc
);
510 /***********************************************************************
511 * RestoreDC (GDI32.@)
513 BOOL WINAPI
RestoreDC( HDC hdc
, INT level
)
518 TRACE("%p %d\n", hdc
, level
);
519 dc
= DC_GetDCUpdate( hdc
);
520 if(!dc
) return FALSE
;
521 if(dc
->funcs
->pRestoreDC
)
523 success
= dc
->funcs
->pRestoreDC( dc
->physDev
, level
);
524 GDI_ReleaseObj( hdc
);
528 if (level
== -1) level
= dc
->saveLevel
;
530 /* This pair of checks disagrees with MSDN "Platform SDK:
531 Windows GDI" July 2000 which says all negative values
532 for level will be interpreted as an instance relative
533 to the current state. Restricting it to just -1 does
535 || (level
> dc
->saveLevel
))
537 GDI_ReleaseObj( hdc
);
542 while (dc
->saveLevel
>= level
)
544 HDC hdcs
= HDC_32(dc
->header
.hNext
);
545 if (!(dcs
= DC_GetDCPtr( hdcs
)))
547 GDI_ReleaseObj( hdc
);
550 dc
->header
.hNext
= dcs
->header
.hNext
;
551 if (--dc
->saveLevel
< level
)
553 SetDCState( hdc
, hdcs
);
554 if (!PATH_AssignGdiPath( &dc
->path
, &dcs
->path
))
555 /* FIXME: This might not be quite right, since we're
556 * returning FALSE but still destroying the saved DC state */
559 GDI_ReleaseObj( hdcs
);
560 GDI_ReleaseObj( hdc
);
562 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
564 GDI_ReleaseObj( hdc
);
569 /***********************************************************************
570 * CreateDCW (GDI32.@)
572 HDC WINAPI
CreateDCW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
573 const DEVMODEW
*initData
)
577 const DC_FUNCTIONS
*funcs
;
582 if (!device
|| !DRIVER_GetDriverName( device
, buf
, 300 ))
584 if (!driver
) return 0;
585 strcpyW(buf
, driver
);
588 if (!(funcs
= DRIVER_load_driver( buf
)))
590 ERR( "no driver found for %s\n", debugstr_w(buf
) );
593 if (!(dc
= DC_AllocDC( funcs
, DC_MAGIC
)))
595 DRIVER_release_driver( funcs
);
599 dc
->hBitmap
= GetStockObject( DEFAULT_BITMAP
);
601 TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
602 debugstr_w(driver
), debugstr_w(device
), debugstr_w(output
), dc
->hSelf
);
604 if (dc
->funcs
->pCreateDC
&&
605 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, buf
, device
, output
, initData
))
607 WARN("creation aborted by device\n" );
608 GDI_FreeObject( dc
->hSelf
, dc
);
609 DRIVER_release_driver( funcs
);
613 dc
->totalExtent
.left
= 0;
614 dc
->totalExtent
.top
= 0;
615 dc
->totalExtent
.right
= GetDeviceCaps( dc
->hSelf
, HORZRES
);
616 dc
->totalExtent
.bottom
= GetDeviceCaps( dc
->hSelf
, VERTRES
);
617 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
621 GDI_ReleaseObj( hdc
);
626 /***********************************************************************
627 * CreateDCA (GDI32.@)
629 HDC WINAPI
CreateDCA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
630 const DEVMODEA
*initData
)
632 UNICODE_STRING driverW
, deviceW
, outputW
;
636 if (driver
) RtlCreateUnicodeStringFromAsciiz(&driverW
, driver
);
637 else driverW
.Buffer
= NULL
;
639 if (device
) RtlCreateUnicodeStringFromAsciiz(&deviceW
, device
);
640 else deviceW
.Buffer
= NULL
;
642 if (output
) RtlCreateUnicodeStringFromAsciiz(&outputW
, output
);
643 else outputW
.Buffer
= NULL
;
645 if (initData
) initDataW
= GdiConvertToDevmodeW(initData
);
646 else initDataW
= NULL
;
648 ret
= CreateDCW( driverW
.Buffer
, deviceW
.Buffer
, outputW
.Buffer
, initDataW
);
650 RtlFreeUnicodeString(&driverW
);
651 RtlFreeUnicodeString(&deviceW
);
652 RtlFreeUnicodeString(&outputW
);
653 if (initDataW
) HeapFree(GetProcessHeap(), 0, initDataW
);
658 /***********************************************************************
659 * CreateICA (GDI32.@)
661 HDC WINAPI
CreateICA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
662 const DEVMODEA
* initData
)
664 /* Nothing special yet for ICs */
665 return CreateDCA( driver
, device
, output
, initData
);
669 /***********************************************************************
670 * CreateICW (GDI32.@)
672 HDC WINAPI
CreateICW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
673 const DEVMODEW
* initData
)
675 /* Nothing special yet for ICs */
676 return CreateDCW( driver
, device
, output
, initData
);
680 /***********************************************************************
681 * CreateCompatibleDC (GDI32.@)
683 HDC WINAPI
CreateCompatibleDC( HDC hdc
)
686 const DC_FUNCTIONS
*funcs
;
691 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
)))
693 funcs
= origDC
->funcs
;
694 physDev
= origDC
->physDev
;
695 GDI_ReleaseObj( hdc
); /* can't hold the lock while loading the driver */
696 funcs
= DRIVER_get_driver( funcs
);
700 static const WCHAR displayW
[] = { 'd','i','s','p','l','a','y',0 };
701 funcs
= DRIVER_load_driver( displayW
);
705 if (!funcs
) return 0;
707 if (!(dc
= DC_AllocDC( funcs
, MEMORY_DC_MAGIC
)))
709 DRIVER_release_driver( funcs
);
713 TRACE("(%p): returning %p\n", hdc
, dc
->hSelf
);
715 dc
->bitsPerPixel
= 1;
716 dc
->hBitmap
= GetStockObject( DEFAULT_BITMAP
);
718 /* Copy the driver-specific physical device info into
719 * the new DC. The driver may use this read-only info
720 * while creating the compatible DC below. */
721 dc
->physDev
= physDev
;
723 if (dc
->funcs
->pCreateDC
&&
724 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, NULL
, NULL
, NULL
, NULL
))
726 WARN("creation aborted by device\n");
727 GDI_FreeObject( dc
->hSelf
, dc
);
728 DRIVER_release_driver( funcs
);
732 dc
->totalExtent
.left
= 0;
733 dc
->totalExtent
.top
= 0;
734 dc
->totalExtent
.right
= 1; /* default bitmap is 1x1 */
735 dc
->totalExtent
.bottom
= 1;
736 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
739 GDI_ReleaseObj( dc
->hSelf
);
744 /***********************************************************************
747 BOOL WINAPI
DeleteDC( HDC hdc
)
749 const DC_FUNCTIONS
*funcs
= NULL
;
756 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
758 /* Call hook procedure to check whether is it OK to delete this DC */
761 DCHOOKPROC proc
= dc
->hookThunk
;
762 DWORD data
= dc
->dwHookData
;
763 GDI_ReleaseObj( hdc
);
764 if (!proc( HDC_16(hdc
), DCHC_DELETEDC
, data
, 0 )) return FALSE
;
765 if (!(dc
= DC_GetDCPtr( hdc
))) return TRUE
; /* deleted by the hook */
768 while (dc
->saveLevel
)
771 HDC hdcs
= HDC_32(dc
->header
.hNext
);
772 if (!(dcs
= DC_GetDCPtr( hdcs
))) break;
773 dc
->header
.hNext
= dcs
->header
.hNext
;
775 if (dcs
->hClipRgn
) DeleteObject( dcs
->hClipRgn
);
776 if (dcs
->hVisRgn
) DeleteObject( dcs
->hVisRgn
);
777 if (dcs
->hGCClipRgn
) DeleteObject( dcs
->hGCClipRgn
);
778 PATH_DestroyGdiPath(&dcs
->path
);
779 GDI_FreeObject( hdcs
, dcs
);
782 if (!(dc
->flags
& DC_SAVED
))
784 SelectObject( hdc
, GetStockObject(BLACK_PEN
) );
785 SelectObject( hdc
, GetStockObject(WHITE_BRUSH
) );
786 SelectObject( hdc
, GetStockObject(SYSTEM_FONT
) );
787 SelectObject( hdc
, GetStockObject(DEFAULT_BITMAP
) );
789 if (dc
->funcs
->pDeleteDC
) dc
->funcs
->pDeleteDC(dc
->physDev
);
793 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
794 if (dc
->hVisRgn
) DeleteObject( dc
->hVisRgn
);
795 if (dc
->hGCClipRgn
) DeleteObject( dc
->hGCClipRgn
);
796 PATH_DestroyGdiPath(&dc
->path
);
798 GDI_FreeObject( hdc
, dc
);
799 if (funcs
) DRIVER_release_driver( funcs
); /* do that after releasing the GDI lock */
804 /***********************************************************************
807 HDC WINAPI
ResetDCA( HDC hdc
, const DEVMODEA
*devmode
)
812 if ((dc
= DC_GetDCPtr( hdc
)))
814 if (dc
->funcs
->pResetDC
) ret
= dc
->funcs
->pResetDC( dc
->physDev
, devmode
);
815 GDI_ReleaseObj( hdc
);
821 /***********************************************************************
824 HDC WINAPI
ResetDCW( HDC hdc
, const DEVMODEW
*devmode
)
826 return ResetDCA(hdc
, (const DEVMODEA
*)devmode
); /* FIXME */
830 /***********************************************************************
831 * GetDeviceCaps (GDI32.@)
833 INT WINAPI
GetDeviceCaps( HDC hdc
, INT cap
)
838 if ((dc
= DC_GetDCPtr( hdc
)))
840 if (dc
->funcs
->pGetDeviceCaps
) ret
= dc
->funcs
->pGetDeviceCaps( dc
->physDev
, cap
);
841 GDI_ReleaseObj( hdc
);
847 /***********************************************************************
848 * SetBkColor (GDI32.@)
850 COLORREF WINAPI
SetBkColor( HDC hdc
, COLORREF color
)
853 DC
* dc
= DC_GetDCPtr( hdc
);
855 if (!dc
) return CLR_INVALID
;
856 oldColor
= dc
->backgroundColor
;
857 if (dc
->funcs
->pSetBkColor
)
859 color
= dc
->funcs
->pSetBkColor(dc
->physDev
, color
);
860 if (color
== CLR_INVALID
) /* don't change it */
863 oldColor
= CLR_INVALID
;
866 dc
->backgroundColor
= color
;
867 GDI_ReleaseObj( hdc
);
872 /***********************************************************************
873 * SetTextColor (GDI32.@)
875 COLORREF WINAPI
SetTextColor( HDC hdc
, COLORREF color
)
878 DC
* dc
= DC_GetDCPtr( hdc
);
880 if (!dc
) return CLR_INVALID
;
881 oldColor
= dc
->textColor
;
882 if (dc
->funcs
->pSetTextColor
)
884 color
= dc
->funcs
->pSetTextColor(dc
->physDev
, color
);
885 if (color
== CLR_INVALID
) /* don't change it */
888 oldColor
= CLR_INVALID
;
891 dc
->textColor
= color
;
892 GDI_ReleaseObj( hdc
);
897 /***********************************************************************
898 * SetTextAlign (GDI32.@)
900 UINT WINAPI
SetTextAlign( HDC hdc
, UINT align
)
903 DC
*dc
= DC_GetDCPtr( hdc
);
905 if (dc
->funcs
->pSetTextAlign
)
906 prevAlign
= dc
->funcs
->pSetTextAlign(dc
->physDev
, align
);
908 prevAlign
= dc
->textAlign
;
909 dc
->textAlign
= align
;
911 GDI_ReleaseObj( hdc
);
915 /***********************************************************************
916 * GetDCOrgEx (GDI32.@)
918 BOOL WINAPI
GetDCOrgEx( HDC hDC
, LPPOINT lpp
)
922 if (!lpp
) return FALSE
;
923 if (!(dc
= DC_GetDCPtr( hDC
))) return FALSE
;
926 if (dc
->funcs
->pGetDCOrgEx
) dc
->funcs
->pGetDCOrgEx( dc
->physDev
, lpp
);
927 GDI_ReleaseObj( hDC
);
932 /***********************************************************************
935 DWORD WINAPI
SetDCOrg16( HDC16 hdc16
, INT16 x
, INT16 y
)
938 HDC hdc
= HDC_32( hdc16
);
939 DC
*dc
= DC_GetDCPtr( hdc
);
941 if (dc
->funcs
->pSetDCOrg
) prevOrg
= dc
->funcs
->pSetDCOrg( dc
->physDev
, x
, y
);
942 GDI_ReleaseObj( hdc
);
947 /***********************************************************************
948 * SetGraphicsMode (GDI32.@)
950 INT WINAPI
SetGraphicsMode( HDC hdc
, INT mode
)
953 DC
*dc
= DC_GetDCPtr( hdc
);
955 /* One would think that setting the graphics mode to GM_COMPATIBLE
956 * would also reset the world transformation matrix to the unity
957 * matrix. However, in Windows, this is not the case. This doesn't
958 * make a lot of sense to me, but that's the way it is.
961 if ((mode
> 0) && (mode
<= GM_LAST
))
963 ret
= dc
->GraphicsMode
;
964 dc
->GraphicsMode
= mode
;
966 GDI_ReleaseObj( hdc
);
971 /***********************************************************************
972 * SetArcDirection (GDI32.@)
974 INT WINAPI
SetArcDirection( HDC hdc
, INT nDirection
)
977 INT nOldDirection
= 0;
979 if (nDirection
!=AD_COUNTERCLOCKWISE
&& nDirection
!=AD_CLOCKWISE
)
981 SetLastError(ERROR_INVALID_PARAMETER
);
985 if ((dc
= DC_GetDCPtr( hdc
)))
987 nOldDirection
= dc
->ArcDirection
;
988 dc
->ArcDirection
= nDirection
;
989 GDI_ReleaseObj( hdc
);
991 return nOldDirection
;
995 /***********************************************************************
996 * GetWorldTransform (GDI32.@)
998 BOOL WINAPI
GetWorldTransform( HDC hdc
, LPXFORM xform
)
1001 if (!xform
) return FALSE
;
1002 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
1003 *xform
= dc
->xformWorld2Wnd
;
1004 GDI_ReleaseObj( hdc
);
1009 /***********************************************************************
1010 * GetTransform (GDI32.@)
1012 BOOL WINAPI
GetTransform( HDC hdc
, DWORD unknown
, LPXFORM xform
)
1014 if (unknown
== 0x0203) return GetWorldTransform( hdc
, xform
);
1015 ERR("stub: don't know what to do for code %lx\n", unknown
);
1020 /***********************************************************************
1021 * SetWorldTransform (GDI32.@)
1023 BOOL WINAPI
SetWorldTransform( HDC hdc
, const XFORM
*xform
)
1026 DC
*dc
= DC_GetDCPtr( hdc
);
1028 if (!dc
) return FALSE
;
1029 if (!xform
) goto done
;
1031 /* Check that graphics mode is GM_ADVANCED */
1032 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1034 if (dc
->funcs
->pSetWorldTransform
)
1036 ret
= dc
->funcs
->pSetWorldTransform(dc
->physDev
, xform
);
1037 if (!ret
) goto done
;
1040 dc
->xformWorld2Wnd
= *xform
;
1041 DC_UpdateXforms( dc
);
1044 GDI_ReleaseObj( hdc
);
1049 /****************************************************************************
1050 * ModifyWorldTransform [GDI32.@]
1051 * Modifies the world transformation for a device context.
1054 * hdc [I] Handle to device context
1055 * xform [I] XFORM structure that will be used to modify the world
1057 * iMode [I] Specifies in what way to modify the world transformation
1060 * Resets the world transformation to the identity matrix.
1061 * The parameter xform is ignored.
1063 * Multiplies xform into the world transformation matrix from
1066 * Multiplies xform into the world transformation matrix from
1071 BOOL WINAPI
ModifyWorldTransform( HDC hdc
, const XFORM
*xform
,
1075 DC
*dc
= DC_GetDCPtr( hdc
);
1077 /* Check for illegal parameters */
1078 if (!dc
) return FALSE
;
1079 if (!xform
) goto done
;
1081 /* Check that graphics mode is GM_ADVANCED */
1082 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1084 if (dc
->funcs
->pModifyWorldTransform
)
1086 ret
= dc
->funcs
->pModifyWorldTransform(dc
->physDev
, xform
, iMode
);
1087 if (!ret
) goto done
;
1093 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
1094 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
1095 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
1096 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
1097 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
1098 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
1100 case MWT_LEFTMULTIPLY
:
1101 CombineTransform( &dc
->xformWorld2Wnd
, xform
,
1102 &dc
->xformWorld2Wnd
);
1104 case MWT_RIGHTMULTIPLY
:
1105 CombineTransform( &dc
->xformWorld2Wnd
, &dc
->xformWorld2Wnd
,
1112 DC_UpdateXforms( dc
);
1115 GDI_ReleaseObj( hdc
);
1120 /****************************************************************************
1121 * CombineTransform [GDI32.@]
1122 * Combines two transformation matrices.
1125 * xformResult [O] Stores the result of combining the two matrices
1126 * xform1 [I] Specifies the first matrix to apply
1127 * xform2 [I] Specifies the second matrix to apply
1130 * The same matrix can be passed in for more than one of the parameters.
1134 BOOL WINAPI
CombineTransform( LPXFORM xformResult
, const XFORM
*xform1
,
1135 const XFORM
*xform2
)
1139 /* Check for illegal parameters */
1140 if (!xformResult
|| !xform1
|| !xform2
)
1143 /* Create the result in a temporary XFORM, since xformResult may be
1144 * equal to xform1 or xform2 */
1145 xformTemp
.eM11
= xform1
->eM11
* xform2
->eM11
+
1146 xform1
->eM12
* xform2
->eM21
;
1147 xformTemp
.eM12
= xform1
->eM11
* xform2
->eM12
+
1148 xform1
->eM12
* xform2
->eM22
;
1149 xformTemp
.eM21
= xform1
->eM21
* xform2
->eM11
+
1150 xform1
->eM22
* xform2
->eM21
;
1151 xformTemp
.eM22
= xform1
->eM21
* xform2
->eM12
+
1152 xform1
->eM22
* xform2
->eM22
;
1153 xformTemp
.eDx
= xform1
->eDx
* xform2
->eM11
+
1154 xform1
->eDy
* xform2
->eM21
+
1156 xformTemp
.eDy
= xform1
->eDx
* xform2
->eM12
+
1157 xform1
->eDy
* xform2
->eM22
+
1160 /* Copy the result to xformResult */
1161 *xformResult
= xformTemp
;
1167 /***********************************************************************
1168 * SetDCHook (GDI32.@)
1170 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1172 BOOL WINAPI
SetDCHook( HDC hdc
, DCHOOKPROC hookProc
, DWORD dwHookData
)
1174 DC
*dc
= GDI_GetObjPtr( hdc
, DC_MAGIC
);
1176 if (!dc
) return FALSE
;
1178 if (!(dc
->flags
& DC_SAVED
))
1180 dc
->dwHookData
= dwHookData
;
1181 dc
->hookThunk
= hookProc
;
1183 GDI_ReleaseObj( hdc
);
1188 /* relay function to call the 16-bit DC hook proc */
1189 static BOOL16 WINAPI
call_dc_hook16( HDC16 hdc16
, WORD code
, DWORD data
, LPARAM lParam
)
1193 FARPROC16 proc
= NULL
;
1194 HDC hdc
= HDC_32( hdc16
);
1195 DC
*dc
= DC_GetDCPtr( hdc
);
1197 if (!dc
) return FALSE
;
1198 proc
= dc
->hookProc
;
1199 GDI_ReleaseObj( hdc
);
1200 if (!proc
) return FALSE
;
1203 args
[3] = HIWORD(data
);
1204 args
[2] = LOWORD(data
);
1205 args
[1] = HIWORD(lParam
);
1206 args
[0] = LOWORD(lParam
);
1207 WOWCallback16Ex( (DWORD
)proc
, WCB16_PASCAL
, sizeof(args
), args
, &ret
);
1211 /***********************************************************************
1212 * SetDCHook (GDI.190)
1214 BOOL16 WINAPI
SetDCHook16( HDC16 hdc16
, FARPROC16 hookProc
, DWORD dwHookData
)
1216 HDC hdc
= HDC_32( hdc16
);
1217 DC
*dc
= DC_GetDCPtr( hdc
);
1218 if (!dc
) return FALSE
;
1220 dc
->hookProc
= hookProc
;
1221 GDI_ReleaseObj( hdc
);
1222 return SetDCHook( hdc
, call_dc_hook16
, dwHookData
);
1226 /***********************************************************************
1227 * GetDCHook (GDI.191)
1229 DWORD WINAPI
GetDCHook16( HDC16 hdc16
, FARPROC16
*phookProc
)
1231 HDC hdc
= HDC_32( hdc16
);
1232 DC
*dc
= DC_GetDCPtr( hdc
);
1236 *phookProc
= dc
->hookProc
;
1237 ret
= dc
->dwHookData
;
1238 GDI_ReleaseObj( hdc
);
1243 /***********************************************************************
1244 * SetHookFlags (GDI.192)
1246 WORD WINAPI
SetHookFlags16(HDC16 hdc16
, WORD flags
)
1248 HDC hdc
= HDC_32( hdc16
);
1249 DC
*dc
= DC_GetDCPtr( hdc
);
1253 WORD wRet
= dc
->flags
& DC_DIRTY
;
1255 /* "Undocumented Windows" info is slightly confusing.
1258 TRACE("hDC %p, flags %04x\n",hdc
,flags
);
1260 if( flags
& DCHF_INVALIDATEVISRGN
)
1261 dc
->flags
|= DC_DIRTY
;
1262 else if( flags
& DCHF_VALIDATEVISRGN
|| !flags
)
1263 dc
->flags
&= ~DC_DIRTY
;
1264 GDI_ReleaseObj( hdc
);
1270 /***********************************************************************
1271 * SetICMMode (GDI32.@)
1273 INT WINAPI
SetICMMode(HDC hdc
, INT iEnableICM
)
1275 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1276 if (iEnableICM
== ICM_OFF
) return ICM_OFF
;
1277 if (iEnableICM
== ICM_ON
) return 0;
1278 if (iEnableICM
== ICM_QUERY
) return ICM_OFF
;
1282 /***********************************************************************
1283 * GetDeviceGammaRamp (GDI32.@)
1285 BOOL WINAPI
GetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1288 DC
*dc
= DC_GetDCPtr( hDC
);
1292 if (dc
->funcs
->pGetDeviceGammaRamp
)
1293 ret
= dc
->funcs
->pGetDeviceGammaRamp(dc
->physDev
, ptr
);
1294 GDI_ReleaseObj( hDC
);
1299 /***********************************************************************
1300 * SetDeviceGammaRamp (GDI32.@)
1302 BOOL WINAPI
SetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1305 DC
*dc
= DC_GetDCPtr( hDC
);
1309 if (dc
->funcs
->pSetDeviceGammaRamp
)
1310 ret
= dc
->funcs
->pSetDeviceGammaRamp(dc
->physDev
, ptr
);
1311 GDI_ReleaseObj( hDC
);
1316 /***********************************************************************
1317 * GetColorSpace (GDI32.@)
1319 HCOLORSPACE WINAPI
GetColorSpace(HDC hdc
)
1321 /*FIXME Need to to whatever GetColorSpace actually does */
1325 /***********************************************************************
1326 * CreateColorSpaceA (GDI32.@)
1328 HCOLORSPACE WINAPI
CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace
)
1334 /***********************************************************************
1335 * CreateColorSpaceW (GDI32.@)
1337 HCOLORSPACE WINAPI
CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace
)
1343 /***********************************************************************
1344 * DeleteColorSpace (GDI32.@)
1346 BOOL WINAPI
DeleteColorSpace( HCOLORSPACE hColorSpace
)
1353 /***********************************************************************
1354 * SetColorSpace (GDI32.@)
1356 HCOLORSPACE WINAPI
SetColorSpace( HDC hDC
, HCOLORSPACE hColorSpace
)
1363 /***********************************************************************
1364 * GetBoundsRect (GDI.194)
1366 UINT16 WINAPI
GetBoundsRect16(HDC16 hdc
, LPRECT16 rect
, UINT16 flags
)
1368 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1371 /***********************************************************************
1372 * GetBoundsRect (GDI32.@)
1374 UINT WINAPI
GetBoundsRect(HDC hdc
, LPRECT rect
, UINT flags
)
1376 FIXME("(): stub\n");
1377 return DCB_RESET
; /* bounding rectangle always empty */
1380 /***********************************************************************
1381 * SetBoundsRect (GDI.193)
1383 UINT16 WINAPI
SetBoundsRect16(HDC16 hdc
, const RECT16
* rect
, UINT16 flags
)
1385 if ( (flags
& DCB_ACCUMULATE
) || (flags
& DCB_ENABLE
) )
1386 FIXME("(%04x, %p, %04x): stub\n", hdc
, rect
, flags
);
1388 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1391 /***********************************************************************
1392 * SetBoundsRect (GDI32.@)
1394 UINT WINAPI
SetBoundsRect(HDC hdc
, const RECT
* rect
, UINT flags
)
1396 FIXME("(): stub\n");
1397 return DCB_DISABLE
; /* bounding rectangle always empty */
1401 /***********************************************************************
1402 * GetRelAbs (GDI32.@)
1404 INT WINAPI
GetRelAbs( HDC hdc
, DWORD dwIgnore
)
1407 DC
*dc
= DC_GetDCPtr( hdc
);
1408 if (dc
) ret
= dc
->relAbsMode
;
1409 GDI_ReleaseObj( hdc
);
1413 /***********************************************************************
1414 * GetLayout (GDI32.@)
1416 * Gets left->right or right->left text layout flags of a dc.
1417 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1420 DWORD WINAPI
GetLayout(HDC hdc
)
1422 FIXME("(%p): stub\n", hdc
);
1423 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1427 /***********************************************************************
1428 * SetLayout (GDI32.@)
1430 * Sets left->right or right->left text layout flags of a dc.
1431 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1434 DWORD WINAPI
SetLayout(HDC hdc
, DWORD layout
)
1436 FIXME("(%p,%08lx): stub\n", hdc
, layout
);
1437 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1441 /***********************************************************************
1442 * SetDCBrushColor (GDI32.@)
1444 * Sets the current device context (DC) brush color to the specified
1445 * color value. If the device cannot represent the specified color
1446 * value, the color is set to the nearest physical color.
1449 COLORREF WINAPI
SetDCBrushColor(HDC hdc
, COLORREF crColor
)
1451 FIXME("(%p, %08lx): stub\n", hdc
, crColor
);
1452 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1456 /***********************************************************************
1457 * SetVirtualResolution (GDI32.@)
1459 * Undocumented on msdn. Called when powerpoint xp saves a file.
1461 DWORD WINAPI
SetVirtualResolution(HDC hdc
, DWORD dw2
, DWORD dw3
, DWORD dw4
, DWORD dw5
)
1463 FIXME("(%p %08lx %08lx %08lx %08lx): stub!\n", hdc
, dw2
, dw3
, dw4
, dw5
);