2 * GDI Device Context functions
4 * Copyright 1993 Alexandre Julliard
14 #include "debugtools.h"
20 #include "wine/winuser16.h"
22 DEFAULT_DEBUG_CHANNEL(dc
);
25 /***********************************************************************
28 DC
*DC_AllocDC( const DC_FUNCTIONS
*funcs
)
33 if (!(dc
= GDI_AllocObject( sizeof(*dc
), DC_MAGIC
, &hdc
))) return NULL
;
54 dc
->hPen
= GetStockObject( BLACK_PEN
);
55 dc
->hBrush
= GetStockObject( WHITE_BRUSH
);
56 dc
->hFont
= GetStockObject( SYSTEM_FONT
);
59 dc
->hPalette
= GetStockObject( DEFAULT_PALETTE
);
60 dc
->ROPmode
= R2_COPYPEN
;
61 dc
->polyFillMode
= ALTERNATE
;
62 dc
->stretchBltMode
= BLACKONWHITE
;
63 dc
->relAbsMode
= ABSOLUTE
;
64 dc
->backgroundMode
= OPAQUE
;
65 dc
->backgroundColor
= RGB( 255, 255, 255 );
66 dc
->textColor
= RGB( 0, 0, 0 );
69 dc
->textAlign
= TA_LEFT
| TA_TOP
| TA_NOUPDATECP
;
71 dc
->breakTotalExtra
= 0;
75 dc
->totalExtent
.left
= 0;
76 dc
->totalExtent
.top
= 0;
77 dc
->totalExtent
.right
= 0;
78 dc
->totalExtent
.bottom
= 0;
80 dc
->MapMode
= MM_TEXT
;
81 dc
->GraphicsMode
= GM_COMPATIBLE
;
84 dc
->pAbortProc
= NULL
;
87 dc
->ArcDirection
= AD_COUNTERCLOCKWISE
;
88 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
89 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
90 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
91 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
92 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
93 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
94 dc
->xformWorld2Vport
= dc
->xformWorld2Wnd
;
95 dc
->xformVport2World
= dc
->xformWorld2Wnd
;
96 dc
->vport2WorldValid
= TRUE
;
97 PATH_InitGdiPath(&dc
->path
);
103 /***********************************************************************
106 DC
*DC_GetDCPtr( HDC hdc
)
108 GDIOBJHDR
*ptr
= GDI_GetObjPtr( hdc
, MAGIC_DONTCARE
);
109 if (!ptr
) return NULL
;
110 if ((GDIMAGIC(ptr
->wMagic
) == DC_MAGIC
) ||
111 (GDIMAGIC(ptr
->wMagic
) == METAFILE_DC_MAGIC
) ||
112 (GDIMAGIC(ptr
->wMagic
) == ENHMETAFILE_DC_MAGIC
))
114 GDI_ReleaseObj( hdc
);
115 SetLastError( ERROR_INVALID_HANDLE
);
119 /***********************************************************************
122 * Retrieve a DC ptr while making sure the visRgn is updated.
123 * This function may call up to USER so the GDI lock should _not_
124 * be held when calling it.
126 DC
*DC_GetDCUpdate( HDC hdc
)
128 DC
*dc
= DC_GetDCPtr( hdc
);
129 if (!dc
) return NULL
;
130 while (dc
->flags
& DC_DIRTY
)
132 dc
->flags
&= ~DC_DIRTY
;
133 if (!(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
135 DCHOOKPROC proc
= dc
->hookThunk
;
138 DWORD data
= dc
->dwHookData
;
139 GDI_ReleaseObj( hdc
);
140 proc( hdc
, DCHC_INVALIDVISRGN
, data
, 0 );
141 if (!(dc
= DC_GetDCPtr( hdc
))) break;
142 /* otherwise restart the loop in case it became dirty again in the meantime */
149 /***********************************************************************
152 * Setup device-specific DC values for a newly created DC.
154 void DC_InitDC( DC
* dc
)
156 RealizeDefaultPalette16( dc
->hSelf
);
157 SetTextColor( dc
->hSelf
, dc
->textColor
);
158 SetBkColor( dc
->hSelf
, dc
->backgroundColor
);
159 SelectObject( dc
->hSelf
, dc
->hPen
);
160 SelectObject( dc
->hSelf
, dc
->hBrush
);
161 SelectObject( dc
->hSelf
, dc
->hFont
);
162 CLIPPING_UpdateGCRegion( dc
);
166 /***********************************************************************
169 * Computes the inverse of the transformation xformSrc and stores it to
170 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
173 static BOOL
DC_InvertXform( const XFORM
*xformSrc
, XFORM
*xformDest
)
177 determinant
= xformSrc
->eM11
*xformSrc
->eM22
-
178 xformSrc
->eM12
*xformSrc
->eM21
;
179 if (determinant
> -1e-12 && determinant
< 1e-12)
182 xformDest
->eM11
= xformSrc
->eM22
/ determinant
;
183 xformDest
->eM12
= -xformSrc
->eM12
/ determinant
;
184 xformDest
->eM21
= -xformSrc
->eM21
/ determinant
;
185 xformDest
->eM22
= xformSrc
->eM11
/ determinant
;
186 xformDest
->eDx
= -xformSrc
->eDx
* xformDest
->eM11
-
187 xformSrc
->eDy
* xformDest
->eM21
;
188 xformDest
->eDy
= -xformSrc
->eDx
* xformDest
->eM12
-
189 xformSrc
->eDy
* xformDest
->eM22
;
195 /***********************************************************************
198 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
199 * fields of the specified DC by creating a transformation that
200 * represents the current mapping mode and combining it with the DC's
201 * world transform. This function should be called whenever the
202 * parameters associated with the mapping mode (window and viewport
203 * extents and origins) or the world transform change.
205 void DC_UpdateXforms( DC
*dc
)
207 XFORM xformWnd2Vport
;
208 FLOAT scaleX
, scaleY
;
210 /* Construct a transformation to do the window-to-viewport conversion */
211 scaleX
= (FLOAT
)dc
->vportExtX
/ (FLOAT
)dc
->wndExtX
;
212 scaleY
= (FLOAT
)dc
->vportExtY
/ (FLOAT
)dc
->wndExtY
;
213 xformWnd2Vport
.eM11
= scaleX
;
214 xformWnd2Vport
.eM12
= 0.0;
215 xformWnd2Vport
.eM21
= 0.0;
216 xformWnd2Vport
.eM22
= scaleY
;
217 xformWnd2Vport
.eDx
= (FLOAT
)dc
->vportOrgX
-
218 scaleX
* (FLOAT
)dc
->wndOrgX
;
219 xformWnd2Vport
.eDy
= (FLOAT
)dc
->vportOrgY
-
220 scaleY
* (FLOAT
)dc
->wndOrgY
;
222 /* Combine with the world transformation */
223 CombineTransform( &dc
->xformWorld2Vport
, &dc
->xformWorld2Wnd
,
226 /* Create inverse of world-to-viewport transformation */
227 dc
->vport2WorldValid
= DC_InvertXform( &dc
->xformWorld2Vport
,
228 &dc
->xformVport2World
);
232 /***********************************************************************
233 * GetDCState (GDI.179)
235 HDC16 WINAPI
GetDCState16( HDC16 hdc
)
240 if (!(dc
= DC_GetDCUpdate( hdc
))) return 0;
241 if (!(newdc
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
, &handle
)))
243 GDI_ReleaseObj( hdc
);
246 TRACE("(%04x): returning %04x\n", hdc
, handle
);
248 newdc
->flags
= dc
->flags
| DC_SAVED
;
249 newdc
->hPen
= dc
->hPen
;
250 newdc
->hBrush
= dc
->hBrush
;
251 newdc
->hFont
= dc
->hFont
;
252 newdc
->hBitmap
= dc
->hBitmap
;
253 newdc
->hDevice
= dc
->hDevice
;
254 newdc
->hPalette
= dc
->hPalette
;
255 newdc
->totalExtent
= dc
->totalExtent
;
256 newdc
->bitsPerPixel
= dc
->bitsPerPixel
;
257 newdc
->ROPmode
= dc
->ROPmode
;
258 newdc
->polyFillMode
= dc
->polyFillMode
;
259 newdc
->stretchBltMode
= dc
->stretchBltMode
;
260 newdc
->relAbsMode
= dc
->relAbsMode
;
261 newdc
->backgroundMode
= dc
->backgroundMode
;
262 newdc
->backgroundColor
= dc
->backgroundColor
;
263 newdc
->textColor
= dc
->textColor
;
264 newdc
->brushOrgX
= dc
->brushOrgX
;
265 newdc
->brushOrgY
= dc
->brushOrgY
;
266 newdc
->textAlign
= dc
->textAlign
;
267 newdc
->charExtra
= dc
->charExtra
;
268 newdc
->breakTotalExtra
= dc
->breakTotalExtra
;
269 newdc
->breakCount
= dc
->breakCount
;
270 newdc
->breakExtra
= dc
->breakExtra
;
271 newdc
->breakRem
= dc
->breakRem
;
272 newdc
->MapMode
= dc
->MapMode
;
273 newdc
->GraphicsMode
= dc
->GraphicsMode
;
275 /* Apparently, the DC origin is not changed by [GS]etDCState */
276 newdc
->DCOrgX
= dc
->DCOrgX
;
277 newdc
->DCOrgY
= dc
->DCOrgY
;
279 newdc
->CursPosX
= dc
->CursPosX
;
280 newdc
->CursPosY
= dc
->CursPosY
;
281 newdc
->ArcDirection
= dc
->ArcDirection
;
282 newdc
->xformWorld2Wnd
= dc
->xformWorld2Wnd
;
283 newdc
->xformWorld2Vport
= dc
->xformWorld2Vport
;
284 newdc
->xformVport2World
= dc
->xformVport2World
;
285 newdc
->vport2WorldValid
= dc
->vport2WorldValid
;
286 newdc
->wndOrgX
= dc
->wndOrgX
;
287 newdc
->wndOrgY
= dc
->wndOrgY
;
288 newdc
->wndExtX
= dc
->wndExtX
;
289 newdc
->wndExtY
= dc
->wndExtY
;
290 newdc
->vportOrgX
= dc
->vportOrgX
;
291 newdc
->vportOrgY
= dc
->vportOrgY
;
292 newdc
->vportExtX
= dc
->vportExtX
;
293 newdc
->vportExtY
= dc
->vportExtY
;
295 newdc
->hSelf
= (HDC
)handle
;
296 newdc
->saveLevel
= 0;
298 PATH_InitGdiPath( &newdc
->path
);
300 newdc
->pAbortProc
= NULL
;
301 newdc
->hookThunk
= NULL
;
304 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
306 newdc
->hGCClipRgn
= newdc
->hVisRgn
= 0;
309 newdc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
310 CombineRgn( newdc
->hClipRgn
, dc
->hClipRgn
, 0, RGN_COPY
);
314 GDI_ReleaseObj( handle
);
315 GDI_ReleaseObj( hdc
);
320 /***********************************************************************
321 * SetDCState (GDI.180)
323 void WINAPI
SetDCState16( HDC16 hdc
, HDC16 hdcs
)
327 if (!(dc
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) return;
328 if (!(dcs
= GDI_GetObjPtr( hdcs
, DC_MAGIC
)))
330 GDI_ReleaseObj( hdc
);
333 if (!dcs
->flags
& DC_SAVED
)
335 GDI_ReleaseObj( hdc
);
336 GDI_ReleaseObj( hdcs
);
339 TRACE("%04x %04x\n", hdc
, hdcs
);
341 dc
->flags
= dcs
->flags
& ~DC_SAVED
;
342 dc
->hDevice
= dcs
->hDevice
;
343 dc
->totalExtent
= dcs
->totalExtent
;
344 dc
->ROPmode
= dcs
->ROPmode
;
345 dc
->polyFillMode
= dcs
->polyFillMode
;
346 dc
->stretchBltMode
= dcs
->stretchBltMode
;
347 dc
->relAbsMode
= dcs
->relAbsMode
;
348 dc
->backgroundMode
= dcs
->backgroundMode
;
349 dc
->backgroundColor
= dcs
->backgroundColor
;
350 dc
->textColor
= dcs
->textColor
;
351 dc
->brushOrgX
= dcs
->brushOrgX
;
352 dc
->brushOrgY
= dcs
->brushOrgY
;
353 dc
->textAlign
= dcs
->textAlign
;
354 dc
->charExtra
= dcs
->charExtra
;
355 dc
->breakTotalExtra
= dcs
->breakTotalExtra
;
356 dc
->breakCount
= dcs
->breakCount
;
357 dc
->breakExtra
= dcs
->breakExtra
;
358 dc
->breakRem
= dcs
->breakRem
;
359 dc
->MapMode
= dcs
->MapMode
;
360 dc
->GraphicsMode
= dcs
->GraphicsMode
;
362 /* Apparently, the DC origin is not changed by [GS]etDCState */
363 dc
->DCOrgX
= dcs
->DCOrgX
;
364 dc
->DCOrgY
= dcs
->DCOrgY
;
366 dc
->CursPosX
= dcs
->CursPosX
;
367 dc
->CursPosY
= dcs
->CursPosY
;
368 dc
->ArcDirection
= dcs
->ArcDirection
;
369 dc
->xformWorld2Wnd
= dcs
->xformWorld2Wnd
;
370 dc
->xformWorld2Vport
= dcs
->xformWorld2Vport
;
371 dc
->xformVport2World
= dcs
->xformVport2World
;
372 dc
->vport2WorldValid
= dcs
->vport2WorldValid
;
374 dc
->wndOrgX
= dcs
->wndOrgX
;
375 dc
->wndOrgY
= dcs
->wndOrgY
;
376 dc
->wndExtX
= dcs
->wndExtX
;
377 dc
->wndExtY
= dcs
->wndExtY
;
378 dc
->vportOrgX
= dcs
->vportOrgX
;
379 dc
->vportOrgY
= dcs
->vportOrgY
;
380 dc
->vportExtX
= dcs
->vportExtX
;
381 dc
->vportExtY
= dcs
->vportExtY
;
383 if (!(dc
->flags
& DC_MEMORY
)) dc
->bitsPerPixel
= dcs
->bitsPerPixel
;
387 if (!dc
->hClipRgn
) dc
->hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
388 CombineRgn( dc
->hClipRgn
, dcs
->hClipRgn
, 0, RGN_COPY
);
392 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
395 CLIPPING_UpdateGCRegion( dc
);
397 SelectObject( hdc
, dcs
->hBitmap
);
398 SelectObject( hdc
, dcs
->hBrush
);
399 SelectObject( hdc
, dcs
->hFont
);
400 SelectObject( hdc
, dcs
->hPen
);
401 SetBkColor( hdc
, dcs
->backgroundColor
);
402 SetTextColor( hdc
, dcs
->textColor
);
403 GDISelectPalette16( hdc
, dcs
->hPalette
, FALSE
);
404 GDI_ReleaseObj( hdcs
);
405 GDI_ReleaseObj( hdc
);
409 /***********************************************************************
412 INT16 WINAPI
SaveDC16( HDC16 hdc
)
414 return (INT16
)SaveDC( hdc
);
418 /***********************************************************************
421 INT WINAPI
SaveDC( HDC hdc
)
427 dc
= DC_GetDCUpdate( hdc
);
430 if(dc
->funcs
->pSaveDC
)
432 ret
= dc
->funcs
->pSaveDC( dc
);
433 GDI_ReleaseObj( hdc
);
437 if (!(hdcs
= GetDCState16( hdc
)))
439 GDI_ReleaseObj( hdc
);
442 dcs
= GDI_GetObjPtr( hdcs
, DC_MAGIC
);
444 /* Copy path. The reason why path saving / restoring is in SaveDC/
445 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
446 * functions are only in Win16 (which doesn't have paths) and that
447 * SetDCState doesn't allow us to signal an error (which can happen
448 * when copying paths).
450 if (!PATH_AssignGdiPath( &dcs
->path
, &dc
->path
))
452 GDI_ReleaseObj( hdc
);
453 GDI_ReleaseObj( hdcs
);
458 dcs
->header
.hNext
= dc
->header
.hNext
;
459 dc
->header
.hNext
= hdcs
;
460 TRACE("(%04x): returning %d\n", hdc
, dc
->saveLevel
+1 );
461 ret
= ++dc
->saveLevel
;
462 GDI_ReleaseObj( hdcs
);
463 GDI_ReleaseObj( hdc
);
468 /***********************************************************************
471 BOOL16 WINAPI
RestoreDC16( HDC16 hdc
, INT16 level
)
473 return RestoreDC( hdc
, level
);
477 /***********************************************************************
478 * RestoreDC (GDI32.@)
480 BOOL WINAPI
RestoreDC( HDC hdc
, INT level
)
485 TRACE("%04x %d\n", hdc
, level
);
486 dc
= DC_GetDCPtr( hdc
);
487 if(!dc
) return FALSE
;
488 if(dc
->funcs
->pRestoreDC
)
490 success
= dc
->funcs
->pRestoreDC( dc
, level
);
491 GDI_ReleaseObj( hdc
);
495 if (level
== -1) level
= dc
->saveLevel
;
497 /* This pair of checks disagrees with MSDN "Platform SDK:
498 Windows GDI" July 2000 which says all negative values
499 for level will be interpreted as an instance relative
500 to the current state. Restricting it to just -1 does
502 || (level
> dc
->saveLevel
))
504 GDI_ReleaseObj( hdc
);
509 while (dc
->saveLevel
>= level
)
511 HDC16 hdcs
= dc
->header
.hNext
;
512 if (!(dcs
= GDI_GetObjPtr( hdcs
, DC_MAGIC
)))
514 GDI_ReleaseObj( hdc
);
517 dc
->header
.hNext
= dcs
->header
.hNext
;
518 if (--dc
->saveLevel
< level
)
520 SetDCState16( hdc
, hdcs
);
521 if (!PATH_AssignGdiPath( &dc
->path
, &dcs
->path
))
522 /* FIXME: This might not be quite right, since we're
523 * returning FALSE but still destroying the saved DC state */
526 GDI_ReleaseObj( hdcs
);
529 GDI_ReleaseObj( hdc
);
534 /***********************************************************************
537 HDC16 WINAPI
CreateDC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
538 const DEVMODEA
*initData
)
540 return CreateDCA( driver
, device
, output
, initData
);
543 /***********************************************************************
544 * CreateDCA (GDI32.@)
546 HDC WINAPI
CreateDCA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
547 const DEVMODEA
*initData
)
551 const DC_FUNCTIONS
*funcs
;
554 if (!device
|| !DRIVER_GetDriverName( device
, buf
, sizeof(buf
) ))
557 if (!(funcs
= DRIVER_load_driver( buf
)))
559 ERR( "no driver found for %s\n", buf
);
562 if (!(dc
= DC_AllocDC( funcs
)))
564 DRIVER_release_driver( funcs
);
570 TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
571 debugstr_a(driver
), debugstr_a(device
), debugstr_a(output
), dc
->hSelf
);
573 if (dc
->funcs
->pCreateDC
&&
574 !dc
->funcs
->pCreateDC( dc
, buf
, device
, output
, initData
))
576 WARN("creation aborted by device\n" );
577 GDI_FreeObject( dc
->hSelf
, dc
);
578 DRIVER_release_driver( funcs
);
584 GDI_ReleaseObj( hdc
);
589 /***********************************************************************
590 * CreateDCW (GDI32.@)
592 HDC WINAPI
CreateDCW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
593 const DEVMODEW
*initData
)
595 LPSTR driverA
= HEAP_strdupWtoA( GetProcessHeap(), 0, driver
);
596 LPSTR deviceA
= HEAP_strdupWtoA( GetProcessHeap(), 0, device
);
597 LPSTR outputA
= HEAP_strdupWtoA( GetProcessHeap(), 0, output
);
598 HDC res
= CreateDCA( driverA
, deviceA
, outputA
,
599 (const DEVMODEA
*)initData
/*FIXME*/ );
600 HeapFree( GetProcessHeap(), 0, driverA
);
601 HeapFree( GetProcessHeap(), 0, deviceA
);
602 HeapFree( GetProcessHeap(), 0, outputA
);
607 /***********************************************************************
610 HDC16 WINAPI
CreateIC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
611 const DEVMODEA
* initData
)
613 /* Nothing special yet for ICs */
614 return CreateDC16( driver
, device
, output
, initData
);
618 /***********************************************************************
619 * CreateICA (GDI32.@)
621 HDC WINAPI
CreateICA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
622 const DEVMODEA
* initData
)
624 /* Nothing special yet for ICs */
625 return CreateDCA( driver
, device
, output
, initData
);
629 /***********************************************************************
630 * CreateICW (GDI32.@)
632 HDC WINAPI
CreateICW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
633 const DEVMODEW
* initData
)
635 /* Nothing special yet for ICs */
636 return CreateDCW( driver
, device
, output
, initData
);
640 /***********************************************************************
641 * CreateCompatibleDC (GDI.52)
643 HDC16 WINAPI
CreateCompatibleDC16( HDC16 hdc
)
645 return (HDC16
)CreateCompatibleDC( hdc
);
649 /***********************************************************************
650 * CreateCompatibleDC (GDI32.@)
652 HDC WINAPI
CreateCompatibleDC( HDC hdc
)
655 const DC_FUNCTIONS
*funcs
;
657 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) funcs
= DRIVER_get_driver(origDC
->funcs
);
658 else funcs
= DRIVER_load_driver( "DISPLAY" );
662 if (origDC
) GDI_ReleaseObj( hdc
);
666 if (!(dc
= DC_AllocDC( funcs
)))
668 DRIVER_release_driver( funcs
);
669 if (origDC
) GDI_ReleaseObj( hdc
);
674 TRACE("(%04x): returning %04x\n",
677 dc
->flags
= DC_MEMORY
;
678 dc
->bitsPerPixel
= 1;
679 dc
->hBitmap
= hPseudoStockBitmap
;
681 /* Copy the driver-specific physical device info into
682 * the new DC. The driver may use this read-only info
683 * while creating the compatible DC below. */
685 dc
->physDev
= origDC
->physDev
;
687 if (dc
->funcs
->pCreateDC
&&
688 !dc
->funcs
->pCreateDC( dc
, NULL
, NULL
, NULL
, NULL
))
690 WARN("creation aborted by device\n");
691 GDI_FreeObject( dc
->hSelf
, dc
);
692 DRIVER_release_driver( funcs
);
693 if (origDC
) GDI_ReleaseObj( hdc
);
698 GDI_ReleaseObj( dc
->hSelf
);
699 if (origDC
) GDI_ReleaseObj( hdc
);
704 /***********************************************************************
707 BOOL16 WINAPI
DeleteDC16( HDC16 hdc
)
709 return DeleteDC( hdc
);
713 /***********************************************************************
716 BOOL WINAPI
DeleteDC( HDC hdc
)
718 DC
* dc
= GDI_GetObjPtr( hdc
, DC_MAGIC
);
719 if (!dc
) return FALSE
;
721 TRACE("%04x\n", hdc
);
723 /* Call hook procedure to check whether is it OK to delete this DC */
724 if (dc
->hookThunk
&& !(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
726 DCHOOKPROC proc
= dc
->hookThunk
;
729 DWORD data
= dc
->dwHookData
;
730 GDI_ReleaseObj( hdc
);
731 if (!proc( hdc
, DCHC_DELETEDC
, data
, 0 )) return FALSE
;
732 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
736 while (dc
->saveLevel
)
739 HDC16 hdcs
= dc
->header
.hNext
;
740 if (!(dcs
= GDI_GetObjPtr( hdcs
, DC_MAGIC
))) break;
741 dc
->header
.hNext
= dcs
->header
.hNext
;
743 GDI_ReleaseObj( hdcs
);
747 if (!(dc
->flags
& DC_SAVED
))
749 SelectObject( hdc
, GetStockObject(BLACK_PEN
) );
750 SelectObject( hdc
, GetStockObject(WHITE_BRUSH
) );
751 SelectObject( hdc
, GetStockObject(SYSTEM_FONT
) );
752 if (dc
->funcs
->pDeleteDC
) dc
->funcs
->pDeleteDC(dc
);
753 DRIVER_release_driver( dc
->funcs
);
756 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
757 if (dc
->hVisRgn
) DeleteObject( dc
->hVisRgn
);
758 if (dc
->hGCClipRgn
) DeleteObject( dc
->hGCClipRgn
);
759 if (dc
->pAbortProc
) THUNK_Free( (FARPROC
)dc
->pAbortProc
);
760 if (dc
->hookThunk
) THUNK_Free( (FARPROC
)dc
->hookThunk
);
761 PATH_DestroyGdiPath(&dc
->path
);
763 return GDI_FreeObject( hdc
, dc
);
767 /***********************************************************************
770 HDC16 WINAPI
ResetDC16( HDC16 hdc
, const DEVMODEA
*devmode
)
777 /***********************************************************************
780 HDC WINAPI
ResetDCA( HDC hdc
, const DEVMODEA
*devmode
)
787 /***********************************************************************
790 HDC WINAPI
ResetDCW( HDC hdc
, const DEVMODEW
*devmode
)
797 /***********************************************************************
798 * GetDeviceCaps (GDI.80)
800 INT16 WINAPI
GetDeviceCaps16( HDC16 hdc
, INT16 cap
)
802 INT16 ret
= GetDeviceCaps( hdc
, cap
);
803 /* some apps don't expect -1 and think it's a B&W screen */
804 if ((cap
== NUMCOLORS
) && (ret
== -1)) ret
= 2048;
809 /***********************************************************************
810 * GetDeviceCaps (GDI32.@)
812 INT WINAPI
GetDeviceCaps( HDC hdc
, INT cap
)
817 if ((dc
= DC_GetDCPtr( hdc
)))
819 if (dc
->funcs
->pGetDeviceCaps
) ret
= dc
->funcs
->pGetDeviceCaps( dc
, cap
);
820 GDI_ReleaseObj( hdc
);
826 /***********************************************************************
829 COLORREF WINAPI
SetBkColor16( HDC16 hdc
, COLORREF color
)
831 return SetBkColor( hdc
, color
);
835 /***********************************************************************
836 * SetBkColor (GDI32.@)
838 COLORREF WINAPI
SetBkColor( HDC hdc
, COLORREF color
)
841 DC
* dc
= DC_GetDCPtr( hdc
);
843 if (!dc
) return 0x80000000;
844 if (dc
->funcs
->pSetBkColor
)
845 oldColor
= dc
->funcs
->pSetBkColor(dc
, color
);
847 oldColor
= dc
->backgroundColor
;
848 dc
->backgroundColor
= color
;
850 GDI_ReleaseObj( hdc
);
855 /***********************************************************************
856 * SetTextColor (GDI.9)
858 COLORREF WINAPI
SetTextColor16( HDC16 hdc
, COLORREF color
)
860 return SetTextColor( hdc
, color
);
864 /***********************************************************************
865 * SetTextColor (GDI32.@)
867 COLORREF WINAPI
SetTextColor( HDC hdc
, COLORREF color
)
870 DC
* dc
= DC_GetDCPtr( hdc
);
872 if (!dc
) return 0x80000000;
873 if (dc
->funcs
->pSetTextColor
)
874 oldColor
= dc
->funcs
->pSetTextColor(dc
, color
);
876 oldColor
= dc
->textColor
;
877 dc
->textColor
= color
;
879 GDI_ReleaseObj( hdc
);
883 /***********************************************************************
884 * SetTextAlign (GDI.346)
886 UINT16 WINAPI
SetTextAlign16( HDC16 hdc
, UINT16 align
)
888 return SetTextAlign( hdc
, align
);
892 /***********************************************************************
893 * SetTextAlign (GDI32.@)
895 UINT WINAPI
SetTextAlign( HDC hdc
, UINT align
)
898 DC
*dc
= DC_GetDCPtr( hdc
);
900 if (dc
->funcs
->pSetTextAlign
)
901 prevAlign
= dc
->funcs
->pSetTextAlign(dc
, align
);
903 prevAlign
= dc
->textAlign
;
904 dc
->textAlign
= align
;
906 GDI_ReleaseObj( hdc
);
910 /***********************************************************************
911 * GetDCOrgEx (GDI32.@)
913 BOOL WINAPI
GetDCOrgEx( HDC hDC
, LPPOINT lpp
)
917 if (!lpp
) return FALSE
;
918 if (!(dc
= DC_GetDCPtr( hDC
))) return FALSE
;
921 if (dc
->funcs
->pGetDCOrgEx
) dc
->funcs
->pGetDCOrgEx( dc
, lpp
);
922 lpp
->x
+= dc
->DCOrgX
;
923 lpp
->y
+= dc
->DCOrgY
;
924 GDI_ReleaseObj( hDC
);
929 /***********************************************************************
932 DWORD WINAPI
GetDCOrg16( HDC16 hdc
)
935 if( GetDCOrgEx( hdc
, &pt
) )
936 return MAKELONG( (WORD
)pt
.x
, (WORD
)pt
.y
);
941 /***********************************************************************
944 DWORD WINAPI
SetDCOrg16( HDC16 hdc
, INT16 x
, INT16 y
)
947 DC
*dc
= DC_GetDCPtr( hdc
);
949 prevOrg
= dc
->DCOrgX
| (dc
->DCOrgY
<< 16);
952 GDI_ReleaseObj( hdc
);
957 /***********************************************************************
958 * SetGraphicsMode (GDI32.@)
960 INT WINAPI
SetGraphicsMode( HDC hdc
, INT mode
)
963 DC
*dc
= DC_GetDCPtr( hdc
);
965 /* One would think that setting the graphics mode to GM_COMPATIBLE
966 * would also reset the world transformation matrix to the unity
967 * matrix. However, in Windows, this is not the case. This doesn't
968 * make a lot of sense to me, but that's the way it is.
971 if ((mode
> 0) || (mode
<= GM_LAST
))
973 ret
= dc
->GraphicsMode
;
974 dc
->GraphicsMode
= mode
;
976 GDI_ReleaseObj( hdc
);
981 /***********************************************************************
982 * SetArcDirection (GDI.525)
984 INT16 WINAPI
SetArcDirection16( HDC16 hdc
, INT16 nDirection
)
986 return SetArcDirection( (HDC
)hdc
, (INT
)nDirection
);
990 /***********************************************************************
991 * SetArcDirection (GDI32.@)
993 INT WINAPI
SetArcDirection( HDC hdc
, INT nDirection
)
996 INT nOldDirection
= 0;
998 if (nDirection
!=AD_COUNTERCLOCKWISE
&& nDirection
!=AD_CLOCKWISE
)
1000 SetLastError(ERROR_INVALID_PARAMETER
);
1004 if ((dc
= DC_GetDCPtr( hdc
)))
1006 nOldDirection
= dc
->ArcDirection
;
1007 dc
->ArcDirection
= nDirection
;
1008 GDI_ReleaseObj( hdc
);
1010 return nOldDirection
;
1014 /***********************************************************************
1015 * GetWorldTransform (GDI32.@)
1017 BOOL WINAPI
GetWorldTransform( HDC hdc
, LPXFORM xform
)
1020 if (!xform
) return FALSE
;
1021 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
1022 *xform
= dc
->xformWorld2Wnd
;
1023 GDI_ReleaseObj( hdc
);
1028 /***********************************************************************
1029 * SetWorldTransform (GDI32.@)
1031 BOOL WINAPI
SetWorldTransform( HDC hdc
, const XFORM
*xform
)
1034 DC
*dc
= DC_GetDCPtr( hdc
);
1036 if (!dc
) return FALSE
;
1037 if (!xform
) goto done
;
1039 /* Check that graphics mode is GM_ADVANCED */
1040 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1042 dc
->xformWorld2Wnd
= *xform
;
1043 DC_UpdateXforms( dc
);
1046 GDI_ReleaseObj( hdc
);
1051 /****************************************************************************
1052 * ModifyWorldTransform [GDI32.@]
1053 * Modifies the world transformation for a device context.
1056 * hdc [I] Handle to device context
1057 * xform [I] XFORM structure that will be used to modify the world
1059 * iMode [I] Specifies in what way to modify the world transformation
1062 * Resets the world transformation to the identity matrix.
1063 * The parameter xform is ignored.
1065 * Multiplies xform into the world transformation matrix from
1068 * Multiplies xform into the world transformation matrix from
1073 BOOL WINAPI
ModifyWorldTransform( HDC hdc
, const XFORM
*xform
,
1077 DC
*dc
= DC_GetDCPtr( hdc
);
1079 /* Check for illegal parameters */
1080 if (!dc
) return FALSE
;
1081 if (!xform
) goto done
;
1083 /* Check that graphics mode is GM_ADVANCED */
1084 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1089 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
1090 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
1091 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
1092 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
1093 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
1094 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
1096 case MWT_LEFTMULTIPLY
:
1097 CombineTransform( &dc
->xformWorld2Wnd
, xform
,
1098 &dc
->xformWorld2Wnd
);
1100 case MWT_RIGHTMULTIPLY
:
1101 CombineTransform( &dc
->xformWorld2Wnd
, &dc
->xformWorld2Wnd
,
1108 DC_UpdateXforms( dc
);
1111 GDI_ReleaseObj( hdc
);
1116 /****************************************************************************
1117 * CombineTransform [GDI32.@]
1118 * Combines two transformation matrices.
1121 * xformResult [O] Stores the result of combining the two matrices
1122 * xform1 [I] Specifies the first matrix to apply
1123 * xform2 [I] Specifies the second matrix to apply
1126 * The same matrix can be passed in for more than one of the parameters.
1130 BOOL WINAPI
CombineTransform( LPXFORM xformResult
, const XFORM
*xform1
,
1131 const XFORM
*xform2
)
1135 /* Check for illegal parameters */
1136 if (!xformResult
|| !xform1
|| !xform2
)
1139 /* Create the result in a temporary XFORM, since xformResult may be
1140 * equal to xform1 or xform2 */
1141 xformTemp
.eM11
= xform1
->eM11
* xform2
->eM11
+
1142 xform1
->eM12
* xform2
->eM21
;
1143 xformTemp
.eM12
= xform1
->eM11
* xform2
->eM12
+
1144 xform1
->eM12
* xform2
->eM22
;
1145 xformTemp
.eM21
= xform1
->eM21
* xform2
->eM11
+
1146 xform1
->eM22
* xform2
->eM21
;
1147 xformTemp
.eM22
= xform1
->eM21
* xform2
->eM12
+
1148 xform1
->eM22
* xform2
->eM22
;
1149 xformTemp
.eDx
= xform1
->eDx
* xform2
->eM11
+
1150 xform1
->eDy
* xform2
->eM21
+
1152 xformTemp
.eDy
= xform1
->eDx
* xform2
->eM12
+
1153 xform1
->eDy
* xform2
->eM22
+
1156 /* Copy the result to xformResult */
1157 *xformResult
= xformTemp
;
1163 /***********************************************************************
1164 * SetDCHook (GDI.190)
1167 /* ### start build ### */
1168 extern WORD CALLBACK
GDI_CallTo16_word_wwll(FARPROC16
,WORD
,WORD
,LONG
,LONG
);
1169 /* ### stop build ### */
1171 /**********************************************************************/
1173 BOOL16 WINAPI
SetDCHook( HDC16 hdc
, FARPROC16 hookProc
, DWORD dwHookData
)
1175 DC
*dc
= DC_GetDCPtr( hdc
);
1176 if (!dc
) return FALSE
;
1179 * Note: We store the original SEGPTR 'hookProc' as we need to be
1180 * able to return it verbatim in GetDCHook,
1182 * On the other hand, we still call THUNK_Alloc and store the
1183 * 32-bit thunk into another DC member, because THUNK_Alloc
1184 * recognizes the (typical) case that the 'hookProc' is indeed
1185 * the 16-bit API entry point of a built-in routine (e.g. DCHook16)
1187 * We could perform that test every time the hook is about to
1188 * be called (or else we could live with the 32->16->32 detour),
1189 * but this way is the most efficient ...
1192 dc
->hookProc
= hookProc
;
1193 dc
->dwHookData
= dwHookData
;
1195 THUNK_Free( (FARPROC
)dc
->hookThunk
);
1196 dc
->hookThunk
= (DCHOOKPROC
)
1197 THUNK_Alloc( hookProc
, (RELAY
)GDI_CallTo16_word_wwll
);
1199 GDI_ReleaseObj( hdc
);
1204 /***********************************************************************
1205 * GetDCHook (GDI.191)
1207 DWORD WINAPI
GetDCHook( HDC16 hdc
, FARPROC16
*phookProc
)
1209 DC
*dc
= DC_GetDCPtr( hdc
);
1211 *phookProc
= dc
->hookProc
;
1212 GDI_ReleaseObj( hdc
);
1213 return dc
->dwHookData
;
1217 /***********************************************************************
1218 * SetHookFlags (GDI.192)
1220 WORD WINAPI
SetHookFlags16(HDC16 hDC
, WORD flags
)
1222 DC
*dc
= DC_GetDCPtr( hDC
);
1226 WORD wRet
= dc
->flags
& DC_DIRTY
;
1228 /* "Undocumented Windows" info is slightly confusing.
1231 TRACE("hDC %04x, flags %04x\n",hDC
,flags
);
1233 if( flags
& DCHF_INVALIDATEVISRGN
)
1234 dc
->flags
|= DC_DIRTY
;
1235 else if( flags
& DCHF_VALIDATEVISRGN
|| !flags
)
1236 dc
->flags
&= ~DC_DIRTY
;
1237 GDI_ReleaseObj( hDC
);
1243 /***********************************************************************
1244 * SetICMMode (GDI32.@)
1246 INT WINAPI
SetICMMode(HDC hdc
, INT iEnableICM
)
1248 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1249 if (iEnableICM
== ICM_OFF
) return ICM_OFF
;
1250 if (iEnableICM
== ICM_ON
) return 0;
1251 if (iEnableICM
== ICM_QUERY
) return ICM_OFF
;
1255 /***********************************************************************
1256 * GetDeviceGammaRamp (GDI32.@)
1258 BOOL WINAPI
GetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1261 DC
*dc
= DC_GetDCPtr( hDC
);
1265 if (dc
->funcs
->pGetDeviceGammaRamp
)
1266 ret
= dc
->funcs
->pGetDeviceGammaRamp(dc
, ptr
);
1267 GDI_ReleaseObj( hDC
);
1272 /***********************************************************************
1273 * SetDeviceGammaRamp (GDI32.@)
1275 BOOL WINAPI
SetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1278 DC
*dc
= DC_GetDCPtr( hDC
);
1282 if (dc
->funcs
->pSetDeviceGammaRamp
)
1283 ret
= dc
->funcs
->pSetDeviceGammaRamp(dc
, ptr
);
1284 GDI_ReleaseObj( hDC
);
1289 /***********************************************************************
1290 * GetColorSpace (GDI32.@)
1292 HCOLORSPACE WINAPI
GetColorSpace(HDC hdc
)
1294 /*FIXME Need to to whatever GetColorSpace actually does */
1298 /***********************************************************************
1299 * CreateColorSpaceA (GDI32.@)
1301 HCOLORSPACE WINAPI
CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace
)
1307 /***********************************************************************
1308 * CreateColorSpaceW (GDI32.@)
1310 HCOLORSPACE WINAPI
CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace
)
1316 /***********************************************************************
1317 * DeleteColorSpace (GDI32.@)
1319 BOOL WINAPI
DeleteColorSpace( HCOLORSPACE hColorSpace
)
1326 /***********************************************************************
1327 * SetColorSpace (GDI32.@)
1329 HCOLORSPACE WINAPI
SetColorSpace( HDC hDC
, HCOLORSPACE hColorSpace
)
1336 /***********************************************************************
1337 * GetBoundsRect (GDI.194)
1339 UINT16 WINAPI
GetBoundsRect16(HDC16 hdc
, LPRECT16 rect
, UINT16 flags
)
1341 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1344 /***********************************************************************
1345 * GetBoundsRect (GDI32.@)
1347 UINT WINAPI
GetBoundsRect(HDC hdc
, LPRECT rect
, UINT flags
)
1349 FIXME("(): stub\n");
1350 return DCB_RESET
; /* bounding rectangle always empty */
1353 /***********************************************************************
1354 * SetBoundsRect (GDI.193)
1356 UINT16 WINAPI
SetBoundsRect16(HDC16 hdc
, const RECT16
* rect
, UINT16 flags
)
1358 if ( (flags
& DCB_ACCUMULATE
) || (flags
& DCB_ENABLE
) )
1359 FIXME("(%04x, %p, %04x): stub\n", hdc
, rect
, flags
);
1361 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1364 /***********************************************************************
1365 * SetBoundsRect (GDI32.@)
1367 UINT WINAPI
SetBoundsRect(HDC hdc
, const RECT
* rect
, UINT flags
)
1369 FIXME("(): stub\n");
1370 return DCB_DISABLE
; /* bounding rectangle always empty */
1374 /***********************************************************************
1375 * GetRelAbs (GDI32.@)
1377 INT WINAPI
GetRelAbs( HDC hdc
, DWORD dwIgnore
)
1380 DC
*dc
= DC_GetDCPtr( hdc
);
1381 if (dc
) ret
= dc
->relAbsMode
;
1382 GDI_ReleaseObj( hdc
);
1386 /***********************************************************************
1389 * Disables GDI, switches back to text mode.
1390 * We don't have to do anything here,
1391 * just let console support handle everything
1393 void WINAPI
Death16(HDC16 hDC
)
1395 MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC
);
1398 /***********************************************************************
1399 * Resurrection (GDI.122)
1401 * Restores GDI functionality
1403 void WINAPI
Resurrection16(HDC16 hDC
,
1404 WORD w1
, WORD w2
, WORD w3
, WORD w4
, WORD w5
, WORD w6
)
1406 MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC
, w1
, w2
, w3
, w4
, w5
, w6
);
1409 /***********************************************************************
1410 * GetLayout (GDI32.@)
1412 * Gets left->right or right->left text layout flags of a dc.
1413 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1416 DWORD WINAPI
GetLayout(HDC hdc
)
1418 FIXME("(%08x): stub\n", hdc
);
1419 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1423 /***********************************************************************
1424 * SetLayout (GDI32.@)
1426 * Sets left->right or right->left text layout flags of a dc.
1427 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1430 DWORD WINAPI
SetLayout(HDC hdc
, DWORD layout
)
1432 FIXME("(%08x,%08lx): stub\n", hdc
, layout
);
1433 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);