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
27 #include "wine/debug.h"
32 #include "wine/winuser16.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(dc
);
36 /* ### start build ### */
37 extern WORD CALLBACK
GDI_CallTo16_word_wwll(FARPROC16
,WORD
,WORD
,LONG
,LONG
);
38 /* ### stop build ### */
40 static BOOL
DC_DeleteObject( HGDIOBJ handle
, void *obj
);
42 static const struct gdi_obj_funcs dc_funcs
=
44 NULL
, /* pSelectObject */
45 NULL
, /* pGetObject16 */
46 NULL
, /* pGetObjectA */
47 NULL
, /* pGetObjectW */
48 NULL
, /* pUnrealizeObject */
49 DC_DeleteObject
/* pDeleteObject */
52 /***********************************************************************
55 DC
*DC_AllocDC( const DC_FUNCTIONS
*funcs
)
60 if (!(dc
= GDI_AllocObject( sizeof(*dc
), DC_MAGIC
, &hdc
, &dc_funcs
))) return NULL
;
81 dc
->hPen
= GetStockObject( BLACK_PEN
);
82 dc
->hBrush
= GetStockObject( WHITE_BRUSH
);
83 dc
->hFont
= GetStockObject( SYSTEM_FONT
);
86 dc
->hPalette
= GetStockObject( DEFAULT_PALETTE
);
88 dc
->ROPmode
= R2_COPYPEN
;
89 dc
->polyFillMode
= ALTERNATE
;
90 dc
->stretchBltMode
= BLACKONWHITE
;
91 dc
->relAbsMode
= ABSOLUTE
;
92 dc
->backgroundMode
= OPAQUE
;
93 dc
->backgroundColor
= RGB( 255, 255, 255 );
94 dc
->textColor
= RGB( 0, 0, 0 );
97 dc
->textAlign
= TA_LEFT
| TA_TOP
| TA_NOUPDATECP
;
99 dc
->breakTotalExtra
= 0;
103 dc
->totalExtent
.left
= 0;
104 dc
->totalExtent
.top
= 0;
105 dc
->totalExtent
.right
= 0;
106 dc
->totalExtent
.bottom
= 0;
107 dc
->bitsPerPixel
= 1;
108 dc
->MapMode
= MM_TEXT
;
109 dc
->GraphicsMode
= GM_COMPATIBLE
;
110 dc
->pAbortProc
= NULL
;
113 dc
->ArcDirection
= AD_COUNTERCLOCKWISE
;
114 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
115 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
116 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
117 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
118 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
119 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
120 dc
->xformWorld2Vport
= dc
->xformWorld2Wnd
;
121 dc
->xformVport2World
= dc
->xformWorld2Wnd
;
122 dc
->vport2WorldValid
= TRUE
;
123 PATH_InitGdiPath(&dc
->path
);
129 /***********************************************************************
132 DC
*DC_GetDCPtr( HDC hdc
)
134 GDIOBJHDR
*ptr
= GDI_GetObjPtr( hdc
, MAGIC_DONTCARE
);
135 if (!ptr
) return NULL
;
136 if ((GDIMAGIC(ptr
->wMagic
) == DC_MAGIC
) ||
137 (GDIMAGIC(ptr
->wMagic
) == METAFILE_DC_MAGIC
) ||
138 (GDIMAGIC(ptr
->wMagic
) == ENHMETAFILE_DC_MAGIC
))
140 GDI_ReleaseObj( hdc
);
141 SetLastError( ERROR_INVALID_HANDLE
);
145 /***********************************************************************
148 * Retrieve a DC ptr while making sure the visRgn is updated.
149 * This function may call up to USER so the GDI lock should _not_
150 * be held when calling it.
152 DC
*DC_GetDCUpdate( HDC hdc
)
154 DC
*dc
= DC_GetDCPtr( hdc
);
155 if (!dc
) return NULL
;
156 while (dc
->flags
& DC_DIRTY
)
158 dc
->flags
&= ~DC_DIRTY
;
159 if (!(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
161 DCHOOKPROC proc
= dc
->hookThunk
;
164 DWORD data
= dc
->dwHookData
;
165 GDI_ReleaseObj( hdc
);
166 proc( hdc
, DCHC_INVALIDVISRGN
, data
, 0 );
167 if (!(dc
= DC_GetDCPtr( hdc
))) break;
168 /* otherwise restart the loop in case it became dirty again in the meantime */
176 /***********************************************************************
179 static BOOL
DC_DeleteObject( HGDIOBJ handle
, void *obj
)
181 GDI_ReleaseObj( handle
);
182 return DeleteDC( handle
);
186 /***********************************************************************
189 * Setup device-specific DC values for a newly created DC.
191 void DC_InitDC( DC
* dc
)
193 RealizeDefaultPalette16( dc
->hSelf
);
194 SetTextColor( dc
->hSelf
, dc
->textColor
);
195 SetBkColor( dc
->hSelf
, dc
->backgroundColor
);
196 SelectObject( dc
->hSelf
, dc
->hPen
);
197 SelectObject( dc
->hSelf
, dc
->hBrush
);
198 SelectObject( dc
->hSelf
, dc
->hFont
);
199 CLIPPING_UpdateGCRegion( dc
);
203 /***********************************************************************
206 * Computes the inverse of the transformation xformSrc and stores it to
207 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
210 static BOOL
DC_InvertXform( const XFORM
*xformSrc
, XFORM
*xformDest
)
214 determinant
= xformSrc
->eM11
*xformSrc
->eM22
-
215 xformSrc
->eM12
*xformSrc
->eM21
;
216 if (determinant
> -1e-12 && determinant
< 1e-12)
219 xformDest
->eM11
= xformSrc
->eM22
/ determinant
;
220 xformDest
->eM12
= -xformSrc
->eM12
/ determinant
;
221 xformDest
->eM21
= -xformSrc
->eM21
/ determinant
;
222 xformDest
->eM22
= xformSrc
->eM11
/ determinant
;
223 xformDest
->eDx
= -xformSrc
->eDx
* xformDest
->eM11
-
224 xformSrc
->eDy
* xformDest
->eM21
;
225 xformDest
->eDy
= -xformSrc
->eDx
* xformDest
->eM12
-
226 xformSrc
->eDy
* xformDest
->eM22
;
232 /***********************************************************************
235 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
236 * fields of the specified DC by creating a transformation that
237 * represents the current mapping mode and combining it with the DC's
238 * world transform. This function should be called whenever the
239 * parameters associated with the mapping mode (window and viewport
240 * extents and origins) or the world transform change.
242 void DC_UpdateXforms( DC
*dc
)
244 XFORM xformWnd2Vport
;
245 FLOAT scaleX
, scaleY
;
247 /* Construct a transformation to do the window-to-viewport conversion */
248 scaleX
= (FLOAT
)dc
->vportExtX
/ (FLOAT
)dc
->wndExtX
;
249 scaleY
= (FLOAT
)dc
->vportExtY
/ (FLOAT
)dc
->wndExtY
;
250 xformWnd2Vport
.eM11
= scaleX
;
251 xformWnd2Vport
.eM12
= 0.0;
252 xformWnd2Vport
.eM21
= 0.0;
253 xformWnd2Vport
.eM22
= scaleY
;
254 xformWnd2Vport
.eDx
= (FLOAT
)dc
->vportOrgX
-
255 scaleX
* (FLOAT
)dc
->wndOrgX
;
256 xformWnd2Vport
.eDy
= (FLOAT
)dc
->vportOrgY
-
257 scaleY
* (FLOAT
)dc
->wndOrgY
;
259 /* Combine with the world transformation */
260 CombineTransform( &dc
->xformWorld2Vport
, &dc
->xformWorld2Wnd
,
263 /* Create inverse of world-to-viewport transformation */
264 dc
->vport2WorldValid
= DC_InvertXform( &dc
->xformWorld2Vport
,
265 &dc
->xformVport2World
);
269 /***********************************************************************
270 * GetDCState (GDI.179)
272 HDC16 WINAPI
GetDCState16( HDC16 hdc
)
277 if (!(dc
= DC_GetDCPtr( hdc
))) return 0;
278 if (!(newdc
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
, &handle
, &dc_funcs
)))
280 GDI_ReleaseObj( hdc
);
283 TRACE("(%04x): returning %04x\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 (GDI.180)
361 void WINAPI
SetDCState16( HDC16 hdc
, HDC16 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("%04x %04x\n", hdc
, hdcs
);
379 dc
->flags
= dcs
->flags
& ~DC_SAVED
;
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 (!(dc
->flags
& DC_MEMORY
)) 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 GDISelectPalette16( hdc
, dcs
->hPalette
, FALSE
);
437 GDI_ReleaseObj( hdcs
);
438 GDI_ReleaseObj( hdc
);
442 /***********************************************************************
445 INT16 WINAPI
SaveDC16( HDC16 hdc
)
447 return (INT16
)SaveDC( hdc
);
451 /***********************************************************************
454 INT WINAPI
SaveDC( HDC hdc
)
460 dc
= DC_GetDCPtr( hdc
);
463 if(dc
->funcs
->pSaveDC
)
465 ret
= dc
->funcs
->pSaveDC( dc
->physDev
);
466 GDI_ReleaseObj( hdc
);
470 if (!(hdcs
= GetDCState16( hdc
)))
472 GDI_ReleaseObj( hdc
);
475 dcs
= DC_GetDCPtr( hdcs
);
477 /* Copy path. The reason why path saving / restoring is in SaveDC/
478 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
479 * functions are only in Win16 (which doesn't have paths) and that
480 * SetDCState doesn't allow us to signal an error (which can happen
481 * when copying paths).
483 if (!PATH_AssignGdiPath( &dcs
->path
, &dc
->path
))
485 GDI_ReleaseObj( hdc
);
486 GDI_ReleaseObj( hdcs
);
491 dcs
->header
.hNext
= dc
->header
.hNext
;
492 dc
->header
.hNext
= hdcs
;
493 TRACE("(%04x): returning %d\n", hdc
, dc
->saveLevel
+1 );
494 ret
= ++dc
->saveLevel
;
495 GDI_ReleaseObj( hdcs
);
496 GDI_ReleaseObj( hdc
);
501 /***********************************************************************
504 BOOL16 WINAPI
RestoreDC16( HDC16 hdc
, INT16 level
)
506 return RestoreDC( hdc
, level
);
510 /***********************************************************************
511 * RestoreDC (GDI32.@)
513 BOOL WINAPI
RestoreDC( HDC hdc
, INT level
)
518 TRACE("%04x %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 HDC16 hdcs
= 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 SetDCState16( 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 /***********************************************************************
572 HDC16 WINAPI
CreateDC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
573 const DEVMODEA
*initData
)
575 return CreateDCA( driver
, device
, output
, initData
);
578 /***********************************************************************
579 * CreateDCA (GDI32.@)
581 HDC WINAPI
CreateDCA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
582 const DEVMODEA
*initData
)
586 const DC_FUNCTIONS
*funcs
;
589 if ((!driver
) && (!device
))
594 if (!device
|| !DRIVER_GetDriverName( device
, buf
, sizeof(buf
) ))
597 if (!(funcs
= DRIVER_load_driver( buf
)))
599 ERR( "no driver found for %s\n", buf
);
602 if (!(dc
= DC_AllocDC( funcs
)))
604 DRIVER_release_driver( funcs
);
610 TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
611 debugstr_a(driver
), debugstr_a(device
), debugstr_a(output
), dc
->hSelf
);
613 if (dc
->funcs
->pCreateDC
&&
614 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, buf
, device
, output
, initData
))
616 WARN("creation aborted by device\n" );
617 GDI_FreeObject( dc
->hSelf
, dc
);
618 DRIVER_release_driver( funcs
);
622 dc
->totalExtent
.left
= 0;
623 dc
->totalExtent
.top
= 0;
624 dc
->totalExtent
.right
= GetDeviceCaps( dc
->hSelf
, HORZRES
);
625 dc
->totalExtent
.bottom
= GetDeviceCaps( dc
->hSelf
, VERTRES
);
626 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
630 GDI_ReleaseObj( hdc
);
635 /***********************************************************************
636 * CreateDCW (GDI32.@)
638 HDC WINAPI
CreateDCW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
639 const DEVMODEW
*initData
)
641 LPSTR driverA
= HEAP_strdupWtoA( GetProcessHeap(), 0, driver
);
642 LPSTR deviceA
= HEAP_strdupWtoA( GetProcessHeap(), 0, device
);
643 LPSTR outputA
= HEAP_strdupWtoA( GetProcessHeap(), 0, output
);
644 HDC res
= CreateDCA( driverA
, deviceA
, outputA
,
645 (const DEVMODEA
*)initData
/*FIXME*/ );
646 HeapFree( GetProcessHeap(), 0, driverA
);
647 HeapFree( GetProcessHeap(), 0, deviceA
);
648 HeapFree( GetProcessHeap(), 0, outputA
);
653 /***********************************************************************
656 HDC16 WINAPI
CreateIC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
657 const DEVMODEA
* initData
)
659 /* Nothing special yet for ICs */
660 return CreateDC16( driver
, device
, output
, initData
);
664 /***********************************************************************
665 * CreateICA (GDI32.@)
667 HDC WINAPI
CreateICA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
668 const DEVMODEA
* initData
)
670 /* Nothing special yet for ICs */
671 return CreateDCA( driver
, device
, output
, initData
);
675 /***********************************************************************
676 * CreateICW (GDI32.@)
678 HDC WINAPI
CreateICW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
679 const DEVMODEW
* initData
)
681 /* Nothing special yet for ICs */
682 return CreateDCW( driver
, device
, output
, initData
);
686 /***********************************************************************
687 * CreateCompatibleDC (GDI.52)
689 HDC16 WINAPI
CreateCompatibleDC16( HDC16 hdc
)
691 return (HDC16
)CreateCompatibleDC( hdc
);
695 /***********************************************************************
696 * CreateCompatibleDC (GDI32.@)
698 HDC WINAPI
CreateCompatibleDC( HDC hdc
)
701 const DC_FUNCTIONS
*funcs
;
705 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
)))
707 funcs
= origDC
->funcs
;
708 GDI_ReleaseObj( hdc
); /* can't hold the lock while loading the driver */
709 funcs
= DRIVER_get_driver( funcs
);
711 else funcs
= DRIVER_load_driver( "DISPLAY" );
713 if (!funcs
) return 0;
715 if (!(dc
= DC_AllocDC( funcs
)))
717 DRIVER_release_driver( funcs
);
721 TRACE("(%04x): returning %04x\n",
724 dc
->flags
= DC_MEMORY
;
725 dc
->bitsPerPixel
= 1;
726 dc
->hBitmap
= GetStockObject( DEFAULT_BITMAP
);
728 /* Copy the driver-specific physical device info into
729 * the new DC. The driver may use this read-only info
730 * while creating the compatible DC below. */
731 if ((origDC
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) dc
->physDev
= origDC
->physDev
;
733 if (dc
->funcs
->pCreateDC
&&
734 !dc
->funcs
->pCreateDC( dc
, &dc
->physDev
, NULL
, NULL
, NULL
, NULL
))
736 WARN("creation aborted by device\n");
737 GDI_FreeObject( dc
->hSelf
, dc
);
738 if (origDC
) GDI_ReleaseObj( hdc
);
739 DRIVER_release_driver( funcs
);
743 dc
->totalExtent
.left
= 0;
744 dc
->totalExtent
.top
= 0;
745 dc
->totalExtent
.right
= 1; /* default bitmap is 1x1 */
746 dc
->totalExtent
.bottom
= 1;
747 dc
->hVisRgn
= CreateRectRgnIndirect( &dc
->totalExtent
);
750 GDI_ReleaseObj( dc
->hSelf
);
751 if (origDC
) GDI_ReleaseObj( hdc
);
756 /***********************************************************************
759 BOOL16 WINAPI
DeleteDC16( HDC16 hdc
)
761 return DeleteDC( hdc
);
765 /***********************************************************************
768 BOOL WINAPI
DeleteDC( HDC hdc
)
770 const DC_FUNCTIONS
*funcs
= NULL
;
773 TRACE("%04x\n", hdc
);
777 if (!(dc
= GDI_GetObjPtr( hdc
, DC_MAGIC
))) return FALSE
;
779 /* Call hook procedure to check whether is it OK to delete this DC */
780 if (dc
->hookThunk
&& !(dc
->flags
& (DC_SAVED
| DC_MEMORY
)))
782 DCHOOKPROC proc
= dc
->hookThunk
;
785 DWORD data
= dc
->dwHookData
;
786 GDI_ReleaseObj( hdc
);
787 if (!proc( hdc
, DCHC_DELETEDC
, data
, 0 )) return FALSE
;
788 if (!(dc
= DC_GetDCPtr( hdc
))) return TRUE
; /* deleted by the hook */
792 while (dc
->saveLevel
)
795 HDC16 hdcs
= dc
->header
.hNext
;
796 if (!(dcs
= DC_GetDCPtr( hdcs
))) break;
797 dc
->header
.hNext
= dcs
->header
.hNext
;
799 if (dcs
->hClipRgn
) DeleteObject( dcs
->hClipRgn
);
800 if (dcs
->hVisRgn
) DeleteObject( dcs
->hVisRgn
);
801 if (dcs
->hGCClipRgn
) DeleteObject( dcs
->hGCClipRgn
);
802 PATH_DestroyGdiPath(&dcs
->path
);
803 GDI_FreeObject( hdcs
, dcs
);
806 if (!(dc
->flags
& DC_SAVED
))
808 SelectObject( hdc
, GetStockObject(BLACK_PEN
) );
809 SelectObject( hdc
, GetStockObject(WHITE_BRUSH
) );
810 SelectObject( hdc
, GetStockObject(SYSTEM_FONT
) );
811 SelectObject( hdc
, GetStockObject(DEFAULT_BITMAP
) );
813 if (dc
->funcs
->pDeleteDC
) dc
->funcs
->pDeleteDC(dc
->physDev
);
817 if (dc
->hClipRgn
) DeleteObject( dc
->hClipRgn
);
818 if (dc
->hVisRgn
) DeleteObject( dc
->hVisRgn
);
819 if (dc
->hGCClipRgn
) DeleteObject( dc
->hGCClipRgn
);
820 PATH_DestroyGdiPath(&dc
->path
);
822 GDI_FreeObject( hdc
, dc
);
823 if (funcs
) DRIVER_release_driver( funcs
); /* do that after releasing the GDI lock */
828 /***********************************************************************
831 HDC16 WINAPI
ResetDC16( HDC16 hdc
, const DEVMODEA
*devmode
)
833 return ResetDCA(hdc
, devmode
);
837 /***********************************************************************
840 HDC WINAPI
ResetDCA( HDC hdc
, const DEVMODEA
*devmode
)
845 if ((dc
= DC_GetDCPtr( hdc
)))
847 if (dc
->funcs
->pResetDC
) ret
= dc
->funcs
->pResetDC( dc
->physDev
, devmode
);
848 GDI_ReleaseObj( hdc
);
854 /***********************************************************************
857 HDC WINAPI
ResetDCW( HDC hdc
, const DEVMODEW
*devmode
)
859 return ResetDCA(hdc
, (const DEVMODEA
*)devmode
); /* FIXME */
863 /***********************************************************************
864 * GetDeviceCaps (GDI.80)
866 INT16 WINAPI
GetDeviceCaps16( HDC16 hdc
, INT16 cap
)
868 INT16 ret
= GetDeviceCaps( hdc
, cap
);
869 /* some apps don't expect -1 and think it's a B&W screen */
870 if ((cap
== NUMCOLORS
) && (ret
== -1)) ret
= 2048;
875 /***********************************************************************
876 * GetDeviceCaps (GDI32.@)
878 INT WINAPI
GetDeviceCaps( HDC hdc
, INT cap
)
883 if ((dc
= DC_GetDCPtr( hdc
)))
885 if (dc
->funcs
->pGetDeviceCaps
) ret
= dc
->funcs
->pGetDeviceCaps( dc
->physDev
, cap
);
886 GDI_ReleaseObj( hdc
);
892 /***********************************************************************
895 COLORREF WINAPI
SetBkColor16( HDC16 hdc
, COLORREF color
)
897 return SetBkColor( hdc
, color
);
901 /***********************************************************************
902 * SetBkColor (GDI32.@)
904 COLORREF WINAPI
SetBkColor( HDC hdc
, COLORREF color
)
907 DC
* dc
= DC_GetDCPtr( hdc
);
909 if (!dc
) return CLR_INVALID
;
910 oldColor
= dc
->backgroundColor
;
911 if (dc
->funcs
->pSetBkColor
)
913 color
= dc
->funcs
->pSetBkColor(dc
->physDev
, color
);
914 if (color
== CLR_INVALID
) /* don't change it */
917 oldColor
= CLR_INVALID
;
920 dc
->backgroundColor
= color
;
921 GDI_ReleaseObj( hdc
);
926 /***********************************************************************
927 * SetTextColor (GDI.9)
929 COLORREF WINAPI
SetTextColor16( HDC16 hdc
, COLORREF color
)
931 return SetTextColor( hdc
, color
);
935 /***********************************************************************
936 * SetTextColor (GDI32.@)
938 COLORREF WINAPI
SetTextColor( HDC hdc
, COLORREF color
)
941 DC
* dc
= DC_GetDCPtr( hdc
);
943 if (!dc
) return CLR_INVALID
;
944 oldColor
= dc
->textColor
;
945 if (dc
->funcs
->pSetTextColor
)
947 color
= dc
->funcs
->pSetTextColor(dc
->physDev
, color
);
948 if (color
== CLR_INVALID
) /* don't change it */
951 oldColor
= CLR_INVALID
;
954 dc
->textColor
= color
;
955 GDI_ReleaseObj( hdc
);
959 /***********************************************************************
960 * SetTextAlign (GDI.346)
962 UINT16 WINAPI
SetTextAlign16( HDC16 hdc
, UINT16 align
)
964 return SetTextAlign( hdc
, align
);
968 /***********************************************************************
969 * SetTextAlign (GDI32.@)
971 UINT WINAPI
SetTextAlign( HDC hdc
, UINT align
)
974 DC
*dc
= DC_GetDCPtr( hdc
);
976 if (dc
->funcs
->pSetTextAlign
)
977 prevAlign
= dc
->funcs
->pSetTextAlign(dc
->physDev
, align
);
979 prevAlign
= dc
->textAlign
;
980 dc
->textAlign
= align
;
982 GDI_ReleaseObj( hdc
);
986 /***********************************************************************
987 * GetDCOrgEx (GDI32.@)
989 BOOL WINAPI
GetDCOrgEx( HDC hDC
, LPPOINT lpp
)
993 if (!lpp
) return FALSE
;
994 if (!(dc
= DC_GetDCPtr( hDC
))) return FALSE
;
997 if (dc
->funcs
->pGetDCOrgEx
) dc
->funcs
->pGetDCOrgEx( dc
->physDev
, lpp
);
998 GDI_ReleaseObj( hDC
);
1003 /***********************************************************************
1006 DWORD WINAPI
GetDCOrg16( HDC16 hdc
)
1009 if( GetDCOrgEx( hdc
, &pt
) )
1010 return MAKELONG( (WORD
)pt
.x
, (WORD
)pt
.y
);
1015 /***********************************************************************
1016 * SetDCOrg (GDI.117)
1018 DWORD WINAPI
SetDCOrg16( HDC16 hdc
, INT16 x
, INT16 y
)
1021 DC
*dc
= DC_GetDCPtr( hdc
);
1023 if (dc
->funcs
->pSetDCOrg
) prevOrg
= dc
->funcs
->pSetDCOrg( dc
->physDev
, x
, y
);
1024 GDI_ReleaseObj( hdc
);
1029 /***********************************************************************
1030 * SetGraphicsMode (GDI32.@)
1032 INT WINAPI
SetGraphicsMode( HDC hdc
, INT mode
)
1035 DC
*dc
= DC_GetDCPtr( hdc
);
1037 /* One would think that setting the graphics mode to GM_COMPATIBLE
1038 * would also reset the world transformation matrix to the unity
1039 * matrix. However, in Windows, this is not the case. This doesn't
1040 * make a lot of sense to me, but that's the way it is.
1043 if ((mode
> 0) || (mode
<= GM_LAST
))
1045 ret
= dc
->GraphicsMode
;
1046 dc
->GraphicsMode
= mode
;
1048 GDI_ReleaseObj( hdc
);
1053 /***********************************************************************
1054 * SetArcDirection (GDI.525)
1056 INT16 WINAPI
SetArcDirection16( HDC16 hdc
, INT16 nDirection
)
1058 return SetArcDirection( (HDC
)hdc
, (INT
)nDirection
);
1062 /***********************************************************************
1063 * SetArcDirection (GDI32.@)
1065 INT WINAPI
SetArcDirection( HDC hdc
, INT nDirection
)
1068 INT nOldDirection
= 0;
1070 if (nDirection
!=AD_COUNTERCLOCKWISE
&& nDirection
!=AD_CLOCKWISE
)
1072 SetLastError(ERROR_INVALID_PARAMETER
);
1076 if ((dc
= DC_GetDCPtr( hdc
)))
1078 nOldDirection
= dc
->ArcDirection
;
1079 dc
->ArcDirection
= nDirection
;
1080 GDI_ReleaseObj( hdc
);
1082 return nOldDirection
;
1086 /***********************************************************************
1087 * GetWorldTransform (GDI32.@)
1089 BOOL WINAPI
GetWorldTransform( HDC hdc
, LPXFORM xform
)
1092 if (!xform
) return FALSE
;
1093 if (!(dc
= DC_GetDCPtr( hdc
))) return FALSE
;
1094 *xform
= dc
->xformWorld2Wnd
;
1095 GDI_ReleaseObj( hdc
);
1100 /***********************************************************************
1101 * SetWorldTransform (GDI32.@)
1103 BOOL WINAPI
SetWorldTransform( HDC hdc
, const XFORM
*xform
)
1106 DC
*dc
= DC_GetDCPtr( hdc
);
1108 if (!dc
) return FALSE
;
1109 if (!xform
) goto done
;
1111 /* Check that graphics mode is GM_ADVANCED */
1112 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1114 dc
->xformWorld2Wnd
= *xform
;
1115 DC_UpdateXforms( dc
);
1118 GDI_ReleaseObj( hdc
);
1123 /****************************************************************************
1124 * ModifyWorldTransform [GDI32.@]
1125 * Modifies the world transformation for a device context.
1128 * hdc [I] Handle to device context
1129 * xform [I] XFORM structure that will be used to modify the world
1131 * iMode [I] Specifies in what way to modify the world transformation
1134 * Resets the world transformation to the identity matrix.
1135 * The parameter xform is ignored.
1137 * Multiplies xform into the world transformation matrix from
1140 * Multiplies xform into the world transformation matrix from
1145 BOOL WINAPI
ModifyWorldTransform( HDC hdc
, const XFORM
*xform
,
1149 DC
*dc
= DC_GetDCPtr( hdc
);
1151 /* Check for illegal parameters */
1152 if (!dc
) return FALSE
;
1153 if (!xform
) goto done
;
1155 /* Check that graphics mode is GM_ADVANCED */
1156 if (dc
->GraphicsMode
!=GM_ADVANCED
) goto done
;
1161 dc
->xformWorld2Wnd
.eM11
= 1.0f
;
1162 dc
->xformWorld2Wnd
.eM12
= 0.0f
;
1163 dc
->xformWorld2Wnd
.eM21
= 0.0f
;
1164 dc
->xformWorld2Wnd
.eM22
= 1.0f
;
1165 dc
->xformWorld2Wnd
.eDx
= 0.0f
;
1166 dc
->xformWorld2Wnd
.eDy
= 0.0f
;
1168 case MWT_LEFTMULTIPLY
:
1169 CombineTransform( &dc
->xformWorld2Wnd
, xform
,
1170 &dc
->xformWorld2Wnd
);
1172 case MWT_RIGHTMULTIPLY
:
1173 CombineTransform( &dc
->xformWorld2Wnd
, &dc
->xformWorld2Wnd
,
1180 DC_UpdateXforms( dc
);
1183 GDI_ReleaseObj( hdc
);
1188 /****************************************************************************
1189 * CombineTransform [GDI32.@]
1190 * Combines two transformation matrices.
1193 * xformResult [O] Stores the result of combining the two matrices
1194 * xform1 [I] Specifies the first matrix to apply
1195 * xform2 [I] Specifies the second matrix to apply
1198 * The same matrix can be passed in for more than one of the parameters.
1202 BOOL WINAPI
CombineTransform( LPXFORM xformResult
, const XFORM
*xform1
,
1203 const XFORM
*xform2
)
1207 /* Check for illegal parameters */
1208 if (!xformResult
|| !xform1
|| !xform2
)
1211 /* Create the result in a temporary XFORM, since xformResult may be
1212 * equal to xform1 or xform2 */
1213 xformTemp
.eM11
= xform1
->eM11
* xform2
->eM11
+
1214 xform1
->eM12
* xform2
->eM21
;
1215 xformTemp
.eM12
= xform1
->eM11
* xform2
->eM12
+
1216 xform1
->eM12
* xform2
->eM22
;
1217 xformTemp
.eM21
= xform1
->eM21
* xform2
->eM11
+
1218 xform1
->eM22
* xform2
->eM21
;
1219 xformTemp
.eM22
= xform1
->eM21
* xform2
->eM12
+
1220 xform1
->eM22
* xform2
->eM22
;
1221 xformTemp
.eDx
= xform1
->eDx
* xform2
->eM11
+
1222 xform1
->eDy
* xform2
->eM21
+
1224 xformTemp
.eDy
= xform1
->eDx
* xform2
->eM12
+
1225 xform1
->eDy
* xform2
->eM22
+
1228 /* Copy the result to xformResult */
1229 *xformResult
= xformTemp
;
1235 /***********************************************************************
1236 * SetDCHook (GDI32.@)
1238 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1240 BOOL WINAPI
SetDCHook( HDC hdc
, DCHOOKPROC hookProc
, DWORD dwHookData
)
1242 DC
*dc
= DC_GetDCPtr( hdc
);
1244 if (!dc
) return FALSE
;
1245 dc
->dwHookData
= dwHookData
;
1246 dc
->hookThunk
= hookProc
;
1247 GDI_ReleaseObj( hdc
);
1252 /* relay function to call the 16-bit DC hook proc */
1253 static BOOL16 WINAPI
call_dc_hook16( HDC16 hdc
, WORD code
, DWORD data
, LPARAM lParam
)
1255 FARPROC16 proc
= NULL
;
1256 DC
*dc
= DC_GetDCPtr( hdc
);
1257 if (!dc
) return FALSE
;
1258 proc
= dc
->hookProc
;
1259 GDI_ReleaseObj( hdc
);
1260 if (!proc
) return FALSE
;
1261 return GDI_CallTo16_word_wwll( proc
, hdc
, code
, data
, lParam
);
1264 /***********************************************************************
1265 * SetDCHook (GDI.190)
1267 BOOL16 WINAPI
SetDCHook16( HDC16 hdc
, FARPROC16 hookProc
, DWORD dwHookData
)
1269 DC
*dc
= DC_GetDCPtr( hdc
);
1270 if (!dc
) return FALSE
;
1272 dc
->hookProc
= hookProc
;
1273 GDI_ReleaseObj( hdc
);
1274 return SetDCHook( hdc
, call_dc_hook16
, dwHookData
);
1278 /***********************************************************************
1279 * GetDCHook (GDI.191)
1281 DWORD WINAPI
GetDCHook( HDC16 hdc
, FARPROC16
*phookProc
)
1283 DC
*dc
= DC_GetDCPtr( hdc
);
1285 *phookProc
= dc
->hookProc
;
1286 GDI_ReleaseObj( hdc
);
1287 return dc
->dwHookData
;
1291 /***********************************************************************
1292 * SetHookFlags (GDI.192)
1294 WORD WINAPI
SetHookFlags16(HDC16 hDC
, WORD flags
)
1296 DC
*dc
= DC_GetDCPtr( hDC
);
1300 WORD wRet
= dc
->flags
& DC_DIRTY
;
1302 /* "Undocumented Windows" info is slightly confusing.
1305 TRACE("hDC %04x, flags %04x\n",hDC
,flags
);
1307 if( flags
& DCHF_INVALIDATEVISRGN
)
1308 dc
->flags
|= DC_DIRTY
;
1309 else if( flags
& DCHF_VALIDATEVISRGN
|| !flags
)
1310 dc
->flags
&= ~DC_DIRTY
;
1311 GDI_ReleaseObj( hDC
);
1317 /***********************************************************************
1318 * SetICMMode (GDI32.@)
1320 INT WINAPI
SetICMMode(HDC hdc
, INT iEnableICM
)
1322 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1323 if (iEnableICM
== ICM_OFF
) return ICM_OFF
;
1324 if (iEnableICM
== ICM_ON
) return 0;
1325 if (iEnableICM
== ICM_QUERY
) return ICM_OFF
;
1329 /***********************************************************************
1330 * GetDeviceGammaRamp (GDI32.@)
1332 BOOL WINAPI
GetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1335 DC
*dc
= DC_GetDCPtr( hDC
);
1339 if (dc
->funcs
->pGetDeviceGammaRamp
)
1340 ret
= dc
->funcs
->pGetDeviceGammaRamp(dc
->physDev
, ptr
);
1341 GDI_ReleaseObj( hDC
);
1346 /***********************************************************************
1347 * SetDeviceGammaRamp (GDI32.@)
1349 BOOL WINAPI
SetDeviceGammaRamp(HDC hDC
, LPVOID ptr
)
1352 DC
*dc
= DC_GetDCPtr( hDC
);
1356 if (dc
->funcs
->pSetDeviceGammaRamp
)
1357 ret
= dc
->funcs
->pSetDeviceGammaRamp(dc
->physDev
, ptr
);
1358 GDI_ReleaseObj( hDC
);
1363 /***********************************************************************
1364 * GetColorSpace (GDI32.@)
1366 HCOLORSPACE WINAPI
GetColorSpace(HDC hdc
)
1368 /*FIXME Need to to whatever GetColorSpace actually does */
1372 /***********************************************************************
1373 * CreateColorSpaceA (GDI32.@)
1375 HCOLORSPACE WINAPI
CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace
)
1381 /***********************************************************************
1382 * CreateColorSpaceW (GDI32.@)
1384 HCOLORSPACE WINAPI
CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace
)
1390 /***********************************************************************
1391 * DeleteColorSpace (GDI32.@)
1393 BOOL WINAPI
DeleteColorSpace( HCOLORSPACE hColorSpace
)
1400 /***********************************************************************
1401 * SetColorSpace (GDI32.@)
1403 HCOLORSPACE WINAPI
SetColorSpace( HDC hDC
, HCOLORSPACE hColorSpace
)
1410 /***********************************************************************
1411 * GetBoundsRect (GDI.194)
1413 UINT16 WINAPI
GetBoundsRect16(HDC16 hdc
, LPRECT16 rect
, UINT16 flags
)
1415 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1418 /***********************************************************************
1419 * GetBoundsRect (GDI32.@)
1421 UINT WINAPI
GetBoundsRect(HDC hdc
, LPRECT rect
, UINT flags
)
1423 FIXME("(): stub\n");
1424 return DCB_RESET
; /* bounding rectangle always empty */
1427 /***********************************************************************
1428 * SetBoundsRect (GDI.193)
1430 UINT16 WINAPI
SetBoundsRect16(HDC16 hdc
, const RECT16
* rect
, UINT16 flags
)
1432 if ( (flags
& DCB_ACCUMULATE
) || (flags
& DCB_ENABLE
) )
1433 FIXME("(%04x, %p, %04x): stub\n", hdc
, rect
, flags
);
1435 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1438 /***********************************************************************
1439 * SetBoundsRect (GDI32.@)
1441 UINT WINAPI
SetBoundsRect(HDC hdc
, const RECT
* rect
, UINT flags
)
1443 FIXME("(): stub\n");
1444 return DCB_DISABLE
; /* bounding rectangle always empty */
1448 /***********************************************************************
1449 * GetRelAbs (GDI32.@)
1451 INT WINAPI
GetRelAbs( HDC hdc
, DWORD dwIgnore
)
1454 DC
*dc
= DC_GetDCPtr( hdc
);
1455 if (dc
) ret
= dc
->relAbsMode
;
1456 GDI_ReleaseObj( hdc
);
1460 /***********************************************************************
1463 * Disables GDI, switches back to text mode.
1464 * We don't have to do anything here,
1465 * just let console support handle everything
1467 void WINAPI
Death16(HDC16 hDC
)
1469 MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC
);
1472 /***********************************************************************
1473 * Resurrection (GDI.122)
1475 * Restores GDI functionality
1477 void WINAPI
Resurrection16(HDC16 hDC
,
1478 WORD w1
, WORD w2
, WORD w3
, WORD w4
, WORD w5
, WORD w6
)
1480 MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC
, w1
, w2
, w3
, w4
, w5
, w6
);
1483 /***********************************************************************
1484 * GetLayout (GDI32.@)
1486 * Gets left->right or right->left text layout flags of a dc.
1487 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1490 DWORD WINAPI
GetLayout(HDC hdc
)
1492 FIXME("(%08x): stub\n", hdc
);
1493 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
1497 /***********************************************************************
1498 * SetLayout (GDI32.@)
1500 * Sets left->right or right->left text layout flags of a dc.
1501 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1504 DWORD WINAPI
SetLayout(HDC hdc
, DWORD layout
)
1506 FIXME("(%08x,%08lx): stub\n", hdc
, layout
);
1507 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);