2 * GDI Device Context functions
4 * Copyright 1993 Alexandre Julliard
8 #ifndef X_DISPLAY_MISSING
11 #endif /* !defined(X_DISPLAY_MISSING) */
21 #include "wine/winuser16.h"
23 DEFAULT_DEBUG_CHANNEL(dc
)
25 /***********************************************************************
28 * Fill the WIN_DC_INFO structure.
30 static void DC_Init_DC_INFO( WIN_DC_INFO
*win_dc_info
)
32 win_dc_info
->flags
= 0;
33 win_dc_info
->devCaps
= NULL
;
34 win_dc_info
->hClipRgn
= 0;
35 win_dc_info
->hVisRgn
= 0;
36 win_dc_info
->hGCClipRgn
= 0;
37 win_dc_info
->hPen
= STOCK_BLACK_PEN
;
38 win_dc_info
->hBrush
= STOCK_WHITE_BRUSH
;
39 win_dc_info
->hFont
= STOCK_SYSTEM_FONT
;
40 win_dc_info
->hBitmap
= 0;
41 win_dc_info
->hFirstBitmap
= 0;
42 win_dc_info
->hDevice
= 0;
43 win_dc_info
->hPalette
= STOCK_DEFAULT_PALETTE
;
44 win_dc_info
->ROPmode
= R2_COPYPEN
;
45 win_dc_info
->polyFillMode
= ALTERNATE
;
46 win_dc_info
->stretchBltMode
= BLACKONWHITE
;
47 win_dc_info
->relAbsMode
= ABSOLUTE
;
48 win_dc_info
->backgroundMode
= OPAQUE
;
49 win_dc_info
->backgroundColor
= RGB( 255, 255, 255 );
50 win_dc_info
->textColor
= RGB( 0, 0, 0 );
51 win_dc_info
->brushOrgX
= 0;
52 win_dc_info
->brushOrgY
= 0;
53 win_dc_info
->textAlign
= TA_LEFT
| TA_TOP
| TA_NOUPDATECP
;
54 win_dc_info
->charExtra
= 0;
55 win_dc_info
->breakTotalExtra
= 0;
56 win_dc_info
->breakCount
= 0;
57 win_dc_info
->breakExtra
= 0;
58 win_dc_info
->breakRem
= 0;
59 win_dc_info
->bitsPerPixel
= 1;
60 win_dc_info
->MapMode
= MM_TEXT
;
61 win_dc_info
->GraphicsMode
= GM_COMPATIBLE
;
62 win_dc_info
->DCOrgX
= 0;
63 win_dc_info
->DCOrgY
= 0;
64 win_dc_info
->lpfnPrint
= NULL
;
65 win_dc_info
->CursPosX
= 0;
66 win_dc_info
->CursPosY
= 0;
67 win_dc_info
->ArcDirection
= AD_COUNTERCLOCKWISE
;
68 win_dc_info
->xformWorld2Wnd
.eM11
= 1.0f
;
69 win_dc_info
->xformWorld2Wnd
.eM12
= 0.0f
;
70 win_dc_info
->xformWorld2Wnd
.eM21
= 0.0f
;
71 win_dc_info
->xformWorld2Wnd
.eM22
= 1.0f
;
72 win_dc_info
->xformWorld2Wnd
.eDx
= 0.0f
;
73 win_dc_info
->xformWorld2Wnd
.eDy
= 0.0f
;
74 win_dc_info
->xformWorld2Vport
= win_dc_info
->xformWorld2Wnd
;
75 win_dc_info
->xformVport2World
= win_dc_info
->xformWorld2Wnd
;
76 win_dc_info
->vport2WorldValid
= TRUE
;
78 PATH_InitGdiPath(&win_dc_info
->path
);
82 /***********************************************************************
85 DC
*DC_AllocDC( const DC_FUNCTIONS
*funcs
)
90 if (!(hdc
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
))) return NULL
;
91 dc
= (DC
*) GDI_HEAP_LOCK( hdc
);
108 DC_Init_DC_INFO( &dc
->w
);
115 /***********************************************************************
118 DC
*DC_GetDCPtr( HDC hdc
)
120 GDIOBJHDR
*ptr
= (GDIOBJHDR
*)GDI_HEAP_LOCK( hdc
);
121 if (!ptr
) return NULL
;
122 if ((ptr
->wMagic
== DC_MAGIC
) || (ptr
->wMagic
== METAFILE_DC_MAGIC
) ||
123 (ptr
->wMagic
== ENHMETAFILE_DC_MAGIC
))
125 GDI_HEAP_UNLOCK( hdc
);
130 /***********************************************************************
133 * Setup device-specific DC values for a newly created DC.
135 void DC_InitDC( DC
* dc
)
137 RealizeDefaultPalette16( dc
->hSelf
);
138 SetTextColor( dc
->hSelf
, dc
->w
.textColor
);
139 SetBkColor( dc
->hSelf
, dc
->w
.backgroundColor
);
140 SelectObject( dc
->hSelf
, dc
->w
.hPen
);
141 SelectObject( dc
->hSelf
, dc
->w
.hBrush
);
142 SelectObject( dc
->hSelf
, dc
->w
.hFont
);
143 CLIPPING_UpdateGCRegion( dc
);
147 /***********************************************************************
150 * Computes the inverse of the transformation xformSrc and stores it to
151 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
154 static BOOL
DC_InvertXform( const XFORM
*xformSrc
, XFORM
*xformDest
)
158 determinant
= xformSrc
->eM11
*xformSrc
->eM22
-
159 xformSrc
->eM12
*xformSrc
->eM21
;
160 if (determinant
> -1e-12 && determinant
< 1e-12)
163 xformDest
->eM11
= xformSrc
->eM22
/ determinant
;
164 xformDest
->eM12
= -xformSrc
->eM12
/ determinant
;
165 xformDest
->eM21
= -xformSrc
->eM21
/ determinant
;
166 xformDest
->eM22
= xformSrc
->eM11
/ determinant
;
167 xformDest
->eDx
= -xformSrc
->eDx
* xformDest
->eM11
-
168 xformSrc
->eDy
* xformDest
->eM21
;
169 xformDest
->eDy
= -xformSrc
->eDx
* xformDest
->eM12
-
170 xformSrc
->eDy
* xformDest
->eM22
;
176 /***********************************************************************
179 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
180 * fields of the specified DC by creating a transformation that
181 * represents the current mapping mode and combining it with the DC's
182 * world transform. This function should be called whenever the
183 * parameters associated with the mapping mode (window and viewport
184 * extents and origins) or the world transform change.
186 void DC_UpdateXforms( DC
*dc
)
188 XFORM xformWnd2Vport
;
189 FLOAT scaleX
, scaleY
;
191 /* Construct a transformation to do the window-to-viewport conversion */
192 scaleX
= (FLOAT
)dc
->vportExtX
/ (FLOAT
)dc
->wndExtX
;
193 scaleY
= (FLOAT
)dc
->vportExtY
/ (FLOAT
)dc
->wndExtY
;
194 xformWnd2Vport
.eM11
= scaleX
;
195 xformWnd2Vport
.eM12
= 0.0;
196 xformWnd2Vport
.eM21
= 0.0;
197 xformWnd2Vport
.eM22
= scaleY
;
198 xformWnd2Vport
.eDx
= (FLOAT
)dc
->vportOrgX
-
199 scaleX
* (FLOAT
)dc
->wndOrgX
;
200 xformWnd2Vport
.eDy
= (FLOAT
)dc
->vportOrgY
-
201 scaleY
* (FLOAT
)dc
->wndOrgY
;
203 /* Combine with the world transformation */
204 CombineTransform( &dc
->w
.xformWorld2Vport
, &dc
->w
.xformWorld2Wnd
,
207 /* Create inverse of world-to-viewport transformation */
208 dc
->w
.vport2WorldValid
= DC_InvertXform( &dc
->w
.xformWorld2Vport
,
209 &dc
->w
.xformVport2World
);
213 /***********************************************************************
214 * GetDCState (GDI.179)
216 HDC16 WINAPI
GetDCState16( HDC16 hdc
)
221 if (!(dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
))) return 0;
222 if (!(handle
= GDI_AllocObject( sizeof(DC
), DC_MAGIC
)))
224 GDI_HEAP_UNLOCK( hdc
);
227 newdc
= (DC
*) GDI_HEAP_LOCK( handle
);
229 TRACE(dc
, "(%04x): returning %04x\n", hdc
, handle
);
231 newdc
->w
.flags
= dc
->w
.flags
| DC_SAVED
;
232 newdc
->w
.devCaps
= dc
->w
.devCaps
;
233 newdc
->w
.hPen
= dc
->w
.hPen
;
234 newdc
->w
.hBrush
= dc
->w
.hBrush
;
235 newdc
->w
.hFont
= dc
->w
.hFont
;
236 newdc
->w
.hBitmap
= dc
->w
.hBitmap
;
237 newdc
->w
.hFirstBitmap
= dc
->w
.hFirstBitmap
;
238 newdc
->w
.hDevice
= dc
->w
.hDevice
;
239 newdc
->w
.hPalette
= dc
->w
.hPalette
;
240 newdc
->w
.totalExtent
= dc
->w
.totalExtent
;
241 newdc
->w
.bitsPerPixel
= dc
->w
.bitsPerPixel
;
242 newdc
->w
.ROPmode
= dc
->w
.ROPmode
;
243 newdc
->w
.polyFillMode
= dc
->w
.polyFillMode
;
244 newdc
->w
.stretchBltMode
= dc
->w
.stretchBltMode
;
245 newdc
->w
.relAbsMode
= dc
->w
.relAbsMode
;
246 newdc
->w
.backgroundMode
= dc
->w
.backgroundMode
;
247 newdc
->w
.backgroundColor
= dc
->w
.backgroundColor
;
248 newdc
->w
.textColor
= dc
->w
.textColor
;
249 newdc
->w
.brushOrgX
= dc
->w
.brushOrgX
;
250 newdc
->w
.brushOrgY
= dc
->w
.brushOrgY
;
251 newdc
->w
.textAlign
= dc
->w
.textAlign
;
252 newdc
->w
.charExtra
= dc
->w
.charExtra
;
253 newdc
->w
.breakTotalExtra
= dc
->w
.breakTotalExtra
;
254 newdc
->w
.breakCount
= dc
->w
.breakCount
;
255 newdc
->w
.breakExtra
= dc
->w
.breakExtra
;
256 newdc
->w
.breakRem
= dc
->w
.breakRem
;
257 newdc
->w
.MapMode
= dc
->w
.MapMode
;
258 newdc
->w
.GraphicsMode
= dc
->w
.GraphicsMode
;
260 /* Apparently, the DC origin is not changed by [GS]etDCState */
261 newdc
->w
.DCOrgX
= dc
->w
.DCOrgX
;
262 newdc
->w
.DCOrgY
= dc
->w
.DCOrgY
;
264 newdc
->w
.CursPosX
= dc
->w
.CursPosX
;
265 newdc
->w
.CursPosY
= dc
->w
.CursPosY
;
266 newdc
->w
.ArcDirection
= dc
->w
.ArcDirection
;
267 newdc
->w
.xformWorld2Wnd
= dc
->w
.xformWorld2Wnd
;
268 newdc
->w
.xformWorld2Vport
= dc
->w
.xformWorld2Vport
;
269 newdc
->w
.xformVport2World
= dc
->w
.xformVport2World
;
270 newdc
->w
.vport2WorldValid
= dc
->w
.vport2WorldValid
;
271 newdc
->wndOrgX
= dc
->wndOrgX
;
272 newdc
->wndOrgY
= dc
->wndOrgY
;
273 newdc
->wndExtX
= dc
->wndExtX
;
274 newdc
->wndExtY
= dc
->wndExtY
;
275 newdc
->vportOrgX
= dc
->vportOrgX
;
276 newdc
->vportOrgY
= dc
->vportOrgY
;
277 newdc
->vportExtX
= dc
->vportExtX
;
278 newdc
->vportExtY
= dc
->vportExtY
;
280 newdc
->hSelf
= (HDC
)handle
;
281 newdc
->saveLevel
= 0;
283 PATH_InitGdiPath( &newdc
->w
.path
);
285 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
287 newdc
->w
.hGCClipRgn
= newdc
->w
.hVisRgn
= 0;
290 newdc
->w
.hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
291 CombineRgn( newdc
->w
.hClipRgn
, dc
->w
.hClipRgn
, 0, RGN_COPY
);
294 newdc
->w
.hClipRgn
= 0;
295 GDI_HEAP_UNLOCK( handle
);
296 GDI_HEAP_UNLOCK( hdc
);
301 /***********************************************************************
302 * SetDCState (GDI.180)
304 void WINAPI
SetDCState16( HDC16 hdc
, HDC16 hdcs
)
308 if (!(dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
))) return;
309 if (!(dcs
= (DC
*) GDI_GetObjPtr( hdcs
, DC_MAGIC
)))
311 GDI_HEAP_UNLOCK( hdc
);
314 if (!dcs
->w
.flags
& DC_SAVED
)
316 GDI_HEAP_UNLOCK( hdc
);
317 GDI_HEAP_UNLOCK( hdcs
);
320 TRACE(dc
, "%04x %04x\n", hdc
, hdcs
);
322 dc
->w
.flags
= dcs
->w
.flags
& ~DC_SAVED
;
323 dc
->w
.devCaps
= dcs
->w
.devCaps
;
324 dc
->w
.hFirstBitmap
= dcs
->w
.hFirstBitmap
;
325 dc
->w
.hDevice
= dcs
->w
.hDevice
;
326 dc
->w
.totalExtent
= dcs
->w
.totalExtent
;
327 dc
->w
.ROPmode
= dcs
->w
.ROPmode
;
328 dc
->w
.polyFillMode
= dcs
->w
.polyFillMode
;
329 dc
->w
.stretchBltMode
= dcs
->w
.stretchBltMode
;
330 dc
->w
.relAbsMode
= dcs
->w
.relAbsMode
;
331 dc
->w
.backgroundMode
= dcs
->w
.backgroundMode
;
332 dc
->w
.backgroundColor
= dcs
->w
.backgroundColor
;
333 dc
->w
.textColor
= dcs
->w
.textColor
;
334 dc
->w
.brushOrgX
= dcs
->w
.brushOrgX
;
335 dc
->w
.brushOrgY
= dcs
->w
.brushOrgY
;
336 dc
->w
.textAlign
= dcs
->w
.textAlign
;
337 dc
->w
.charExtra
= dcs
->w
.charExtra
;
338 dc
->w
.breakTotalExtra
= dcs
->w
.breakTotalExtra
;
339 dc
->w
.breakCount
= dcs
->w
.breakCount
;
340 dc
->w
.breakExtra
= dcs
->w
.breakExtra
;
341 dc
->w
.breakRem
= dcs
->w
.breakRem
;
342 dc
->w
.MapMode
= dcs
->w
.MapMode
;
343 dc
->w
.GraphicsMode
= dcs
->w
.GraphicsMode
;
345 /* Apparently, the DC origin is not changed by [GS]etDCState */
346 dc
->w
.DCOrgX
= dcs
->w
.DCOrgX
;
347 dc
->w
.DCOrgY
= dcs
->w
.DCOrgY
;
349 dc
->w
.CursPosX
= dcs
->w
.CursPosX
;
350 dc
->w
.CursPosY
= dcs
->w
.CursPosY
;
351 dc
->w
.ArcDirection
= dcs
->w
.ArcDirection
;
352 dc
->w
.xformWorld2Wnd
= dcs
->w
.xformWorld2Wnd
;
353 dc
->w
.xformWorld2Vport
= dcs
->w
.xformWorld2Vport
;
354 dc
->w
.xformVport2World
= dcs
->w
.xformVport2World
;
355 dc
->w
.vport2WorldValid
= dcs
->w
.vport2WorldValid
;
357 dc
->wndOrgX
= dcs
->wndOrgX
;
358 dc
->wndOrgY
= dcs
->wndOrgY
;
359 dc
->wndExtX
= dcs
->wndExtX
;
360 dc
->wndExtY
= dcs
->wndExtY
;
361 dc
->vportOrgX
= dcs
->vportOrgX
;
362 dc
->vportOrgY
= dcs
->vportOrgY
;
363 dc
->vportExtX
= dcs
->vportExtX
;
364 dc
->vportExtY
= dcs
->vportExtY
;
366 if (!(dc
->w
.flags
& DC_MEMORY
)) dc
->w
.bitsPerPixel
= dcs
->w
.bitsPerPixel
;
370 if (!dc
->w
.hClipRgn
) dc
->w
.hClipRgn
= CreateRectRgn( 0, 0, 0, 0 );
371 CombineRgn( dc
->w
.hClipRgn
, dcs
->w
.hClipRgn
, 0, RGN_COPY
);
375 if (dc
->w
.hClipRgn
) DeleteObject16( dc
->w
.hClipRgn
);
378 CLIPPING_UpdateGCRegion( dc
);
380 SelectObject( hdc
, dcs
->w
.hBitmap
);
381 SelectObject( hdc
, dcs
->w
.hBrush
);
382 SelectObject( hdc
, dcs
->w
.hFont
);
383 SelectObject( hdc
, dcs
->w
.hPen
);
384 SetBkColor( hdc
, dcs
->w
.backgroundColor
);
385 SetTextColor( hdc
, dcs
->w
.textColor
);
386 GDISelectPalette16( hdc
, dcs
->w
.hPalette
, FALSE
);
387 GDI_HEAP_UNLOCK( hdc
);
388 GDI_HEAP_UNLOCK( hdcs
);
392 /***********************************************************************
395 INT16 WINAPI
SaveDC16( HDC16 hdc
)
397 return (INT16
)SaveDC( hdc
);
401 /***********************************************************************
402 * SaveDC32 (GDI32.292)
404 INT WINAPI
SaveDC( HDC hdc
)
410 dc
= DC_GetDCPtr( hdc
);
413 if(dc
->funcs
->pSaveDC
)
414 return dc
->funcs
->pSaveDC( dc
);
416 if (!(hdcs
= GetDCState16( hdc
)))
418 GDI_HEAP_UNLOCK( hdc
);
421 dcs
= (DC
*) GDI_HEAP_LOCK( hdcs
);
423 /* Copy path. The reason why path saving / restoring is in SaveDC/
424 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
425 * functions are only in Win16 (which doesn't have paths) and that
426 * SetDCState doesn't allow us to signal an error (which can happen
427 * when copying paths).
429 if (!PATH_AssignGdiPath( &dcs
->w
.path
, &dc
->w
.path
))
431 GDI_HEAP_UNLOCK( hdc
);
432 GDI_HEAP_UNLOCK( hdcs
);
437 dcs
->header
.hNext
= dc
->header
.hNext
;
438 dc
->header
.hNext
= hdcs
;
439 TRACE(dc
, "(%04x): returning %d\n", hdc
, dc
->saveLevel
+1 );
440 ret
= ++dc
->saveLevel
;
441 GDI_HEAP_UNLOCK( hdcs
);
442 GDI_HEAP_UNLOCK( hdc
);
447 /***********************************************************************
448 * RestoreDC16 (GDI.39)
450 BOOL16 WINAPI
RestoreDC16( HDC16 hdc
, INT16 level
)
452 return RestoreDC( hdc
, level
);
456 /***********************************************************************
457 * RestoreDC32 (GDI32.290)
459 BOOL WINAPI
RestoreDC( HDC hdc
, INT level
)
464 TRACE(dc
, "%04x %d\n", hdc
, level
);
465 dc
= DC_GetDCPtr( hdc
);
466 if(!dc
) return FALSE
;
467 if(dc
->funcs
->pRestoreDC
)
468 return dc
->funcs
->pRestoreDC( dc
, level
);
470 if (level
== -1) level
= dc
->saveLevel
;
471 if ((level
< 1) || (level
> dc
->saveLevel
))
473 GDI_HEAP_UNLOCK( hdc
);
478 while (dc
->saveLevel
>= level
)
480 HDC16 hdcs
= dc
->header
.hNext
;
481 if (!(dcs
= (DC
*) GDI_GetObjPtr( hdcs
, DC_MAGIC
)))
483 GDI_HEAP_UNLOCK( hdc
);
486 dc
->header
.hNext
= dcs
->header
.hNext
;
487 if (--dc
->saveLevel
< level
)
489 SetDCState16( hdc
, hdcs
);
490 if (!PATH_AssignGdiPath( &dc
->w
.path
, &dcs
->w
.path
))
491 /* FIXME: This might not be quite right, since we're
492 * returning FALSE but still destroying the saved DC state */
497 GDI_HEAP_UNLOCK( hdc
);
502 /***********************************************************************
503 * CreateDC16 (GDI.53)
505 HDC16 WINAPI
CreateDC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
506 const DEVMODE16
*initData
)
509 const DC_FUNCTIONS
*funcs
;
511 if (!(funcs
= DRIVER_FindDriver( driver
))) return 0;
512 if (!(dc
= DC_AllocDC( funcs
))) return 0;
515 TRACE(dc
, "(driver=%s, device=%s, output=%s): returning %04x\n",
516 debugstr_a(driver
), debugstr_a(device
), debugstr_a(output
), dc
->hSelf
);
518 if (dc
->funcs
->pCreateDC
&&
519 !dc
->funcs
->pCreateDC( dc
, driver
, device
, output
, initData
))
521 WARN(dc
, "creation aborted by device\n" );
522 GDI_HEAP_FREE( dc
->hSelf
);
527 GDI_HEAP_UNLOCK( dc
->hSelf
);
532 /***********************************************************************
533 * CreateDC32A (GDI32.)
535 HDC WINAPI
CreateDCA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
536 const DEVMODEA
*initData
)
538 return CreateDC16( driver
, device
, output
, (const DEVMODE16
*)initData
);
542 /***********************************************************************
543 * CreateDC32W (GDI32.)
545 HDC WINAPI
CreateDCW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
546 const DEVMODEW
*initData
)
548 LPSTR driverA
= HEAP_strdupWtoA( GetProcessHeap(), 0, driver
);
549 LPSTR deviceA
= HEAP_strdupWtoA( GetProcessHeap(), 0, device
);
550 LPSTR outputA
= HEAP_strdupWtoA( GetProcessHeap(), 0, output
);
551 HDC res
= CreateDC16( driverA
, deviceA
, outputA
,
552 (const DEVMODE16
*)initData
/*FIXME*/ );
553 HeapFree( GetProcessHeap(), 0, driverA
);
554 HeapFree( GetProcessHeap(), 0, deviceA
);
555 HeapFree( GetProcessHeap(), 0, outputA
);
560 /***********************************************************************
561 * CreateIC16 (GDI.153)
563 HDC16 WINAPI
CreateIC16( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
564 const DEVMODE16
* initData
)
566 /* Nothing special yet for ICs */
567 return CreateDC16( driver
, device
, output
, initData
);
571 /***********************************************************************
572 * CreateIC32A (GDI32.49)
574 HDC WINAPI
CreateICA( LPCSTR driver
, LPCSTR device
, LPCSTR output
,
575 const DEVMODEA
* initData
)
577 /* Nothing special yet for ICs */
578 return CreateDCA( driver
, device
, output
, initData
);
582 /***********************************************************************
583 * CreateIC32W (GDI32.50)
585 HDC WINAPI
CreateICW( LPCWSTR driver
, LPCWSTR device
, LPCWSTR output
,
586 const DEVMODEW
* initData
)
588 /* Nothing special yet for ICs */
589 return CreateDCW( driver
, device
, output
, initData
);
593 /***********************************************************************
594 * CreateCompatibleDC16 (GDI.52)
596 HDC16 WINAPI
CreateCompatibleDC16( HDC16 hdc
)
598 return (HDC16
)CreateCompatibleDC( hdc
);
602 /***********************************************************************
603 * CreateCompatibleDC32 (GDI32.31)
605 HDC WINAPI
CreateCompatibleDC( HDC hdc
)
609 const DC_FUNCTIONS
*funcs
;
611 if ((origDC
= (DC
*)GDI_GetObjPtr( hdc
, DC_MAGIC
))) funcs
= origDC
->funcs
;
612 else funcs
= DRIVER_FindDriver( "DISPLAY" );
613 if (!funcs
) return 0;
615 if (!(dc
= DC_AllocDC( funcs
))) return 0;
617 TRACE(dc
, "(%04x): returning %04x\n",
620 /* Create default bitmap */
621 if (!(hbitmap
= CreateBitmap( 1, 1, 1, 1, NULL
)))
623 GDI_HEAP_FREE( dc
->hSelf
);
626 dc
->w
.flags
= DC_MEMORY
;
627 dc
->w
.bitsPerPixel
= 1;
628 dc
->w
.hBitmap
= hbitmap
;
629 dc
->w
.hFirstBitmap
= hbitmap
;
631 if (dc
->funcs
->pCreateDC
&&
632 !dc
->funcs
->pCreateDC( dc
, NULL
, NULL
, NULL
, NULL
))
634 WARN(dc
, "creation aborted by device\n");
635 DeleteObject( hbitmap
);
636 GDI_HEAP_FREE( dc
->hSelf
);
641 GDI_HEAP_UNLOCK( dc
->hSelf
);
646 /***********************************************************************
647 * DeleteDC16 (GDI.68)
649 BOOL16 WINAPI
DeleteDC16( HDC16 hdc
)
651 return DeleteDC( hdc
);
655 /***********************************************************************
656 * DeleteDC32 (GDI32.67)
658 BOOL WINAPI
DeleteDC( HDC hdc
)
660 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
661 if (!dc
) return FALSE
;
663 TRACE(dc
, "%04x\n", hdc
);
665 /* Call hook procedure to check whether is it OK to delete this DC */
666 if ( dc
->hookProc
&& !(dc
->w
.flags
& (DC_SAVED
| DC_MEMORY
))
667 && dc
->hookProc( hdc
, DCHC_DELETEDC
, dc
->dwHookData
, 0 ) == FALSE
)
669 GDI_HEAP_UNLOCK( hdc
);
673 while (dc
->saveLevel
)
676 HDC16 hdcs
= dc
->header
.hNext
;
677 if (!(dcs
= (DC
*) GDI_GetObjPtr( hdcs
, DC_MAGIC
))) break;
678 dc
->header
.hNext
= dcs
->header
.hNext
;
683 if (!(dc
->w
.flags
& DC_SAVED
))
685 SelectObject( hdc
, STOCK_BLACK_PEN
);
686 SelectObject( hdc
, STOCK_WHITE_BRUSH
);
687 SelectObject( hdc
, STOCK_SYSTEM_FONT
);
688 if (dc
->w
.flags
& DC_MEMORY
) DeleteObject( dc
->w
.hFirstBitmap
);
689 if (dc
->funcs
->pDeleteDC
) dc
->funcs
->pDeleteDC(dc
);
692 if (dc
->w
.hClipRgn
) DeleteObject( dc
->w
.hClipRgn
);
693 if (dc
->w
.hVisRgn
) DeleteObject( dc
->w
.hVisRgn
);
694 if (dc
->w
.hGCClipRgn
) DeleteObject( dc
->w
.hGCClipRgn
);
696 PATH_DestroyGdiPath(&dc
->w
.path
);
698 return GDI_FreeObject( hdc
);
702 /***********************************************************************
703 * ResetDC16 (GDI.376)
705 HDC16 WINAPI
ResetDC16( HDC16 hdc
, const DEVMODE16
*devmode
)
707 FIXME(dc
, "stub\n" );
712 /***********************************************************************
713 * ResetDC32A (GDI32.287)
715 HDC WINAPI
ResetDCA( HDC hdc
, const DEVMODEA
*devmode
)
717 FIXME(dc
, "stub\n" );
722 /***********************************************************************
723 * ResetDC32W (GDI32.288)
725 HDC WINAPI
ResetDCW( HDC hdc
, const DEVMODEW
*devmode
)
727 FIXME(dc
, "stub\n" );
732 /***********************************************************************
733 * GetDeviceCaps16 (GDI.80)
735 INT16 WINAPI
GetDeviceCaps16( HDC16 hdc
, INT16 cap
)
737 return GetDeviceCaps( hdc
, cap
);
741 /***********************************************************************
742 * GetDeviceCaps32 (GDI32.171)
744 INT WINAPI
GetDeviceCaps( HDC hdc
, INT cap
)
746 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
751 if ((cap
< 0) || (cap
> sizeof(DeviceCaps
)-sizeof(WORD
)))
753 GDI_HEAP_UNLOCK( hdc
);
757 TRACE(dc
, "(%04x,%d): returning %d\n",
758 hdc
, cap
, *(WORD
*)(((char *)dc
->w
.devCaps
) + cap
) );
759 ret
= *(WORD
*)(((char *)dc
->w
.devCaps
) + cap
);
760 GDI_HEAP_UNLOCK( hdc
);
765 /***********************************************************************
766 * SetBkColor16 (GDI.1)
768 COLORREF WINAPI
SetBkColor16( HDC16 hdc
, COLORREF color
)
770 return SetBkColor( hdc
, color
);
774 /***********************************************************************
775 * SetBkColor32 (GDI32.305)
777 COLORREF WINAPI
SetBkColor( HDC hdc
, COLORREF color
)
780 DC
* dc
= DC_GetDCPtr( hdc
);
782 if (!dc
) return 0x80000000;
783 if (dc
->funcs
->pSetBkColor
)
784 oldColor
= dc
->funcs
->pSetBkColor(dc
, color
);
786 oldColor
= dc
->w
.backgroundColor
;
787 dc
->w
.backgroundColor
= color
;
789 GDI_HEAP_UNLOCK( hdc
);
794 /***********************************************************************
795 * SetTextColor16 (GDI.9)
797 COLORREF WINAPI
SetTextColor16( HDC16 hdc
, COLORREF color
)
799 return SetTextColor( hdc
, color
);
803 /***********************************************************************
804 * SetTextColor32 (GDI32.338)
806 COLORREF WINAPI
SetTextColor( HDC hdc
, COLORREF color
)
809 DC
* dc
= DC_GetDCPtr( hdc
);
811 if (!dc
) return 0x80000000;
812 if (dc
->funcs
->pSetTextColor
)
813 oldColor
= dc
->funcs
->pSetTextColor(dc
, color
);
815 oldColor
= dc
->w
.textColor
;
816 dc
->w
.textColor
= color
;
818 GDI_HEAP_UNLOCK( hdc
);
822 /***********************************************************************
823 * SetTextAlign16 (GDI.346)
825 UINT16 WINAPI
SetTextAlign16( HDC16 hdc
, UINT16 align
)
827 return SetTextAlign( hdc
, align
);
831 /***********************************************************************
832 * SetTextAlign (GDI32.336)
834 UINT WINAPI
SetTextAlign( HDC hdc
, UINT align
)
837 DC
*dc
= DC_GetDCPtr( hdc
);
839 if (dc
->funcs
->pSetTextAlign
)
840 prevAlign
= dc
->funcs
->pSetTextAlign(dc
, align
);
842 prevAlign
= dc
->w
.textAlign
;
843 dc
->w
.textAlign
= align
;
845 GDI_HEAP_UNLOCK( hdc
);
849 /***********************************************************************
850 * GetDCOrgEx (GDI32.168)
852 BOOL WINAPI
GetDCOrgEx( HDC hDC
, LPPOINT lpp
)
856 if (!lpp
) return FALSE
;
857 if (!(dc
= (DC
*) GDI_GetObjPtr( hDC
, DC_MAGIC
))) return FALSE
;
859 #ifndef X_DISPLAY_MISSING
860 if (!(dc
->w
.flags
& DC_MEMORY
))
862 X11DRV_PDEVICE
*physDev
;
864 int w
, h
, border
, depth
;
866 physDev
= (X11DRV_PDEVICE
*) dc
->physDev
;
868 /* FIXME: this is not correct for managed windows */
869 TSXGetGeometry( display
, physDev
->drawable
, &root
,
870 (int*)&lpp
->x
, (int*)&lpp
->y
, &w
, &h
, &border
, &depth
);
873 #endif /* !defined(X_DISPLAY_MISSING) */
876 lpp
->x
+= dc
->w
.DCOrgX
; lpp
->y
+= dc
->w
.DCOrgY
;
877 GDI_HEAP_UNLOCK( hDC
);
882 /***********************************************************************
885 DWORD WINAPI
GetDCOrg16( HDC16 hdc
)
888 if( GetDCOrgEx( hdc
, &pt
) )
889 return MAKELONG( (WORD
)pt
.x
, (WORD
)pt
.y
);
894 /***********************************************************************
897 DWORD WINAPI
SetDCOrg16( HDC16 hdc
, INT16 x
, INT16 y
)
900 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
902 prevOrg
= dc
->w
.DCOrgX
| (dc
->w
.DCOrgY
<< 16);
905 GDI_HEAP_UNLOCK( hdc
);
910 /***********************************************************************
911 * GetGraphicsMode (GDI32.188)
913 INT WINAPI
GetGraphicsMode( HDC hdc
)
915 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
917 return dc
->w
.GraphicsMode
;
921 /***********************************************************************
922 * SetGraphicsMode (GDI32.317)
924 INT WINAPI
SetGraphicsMode( HDC hdc
, INT mode
)
927 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
929 /* One would think that setting the graphics mode to GM_COMPATIBLE
930 * would also reset the world transformation matrix to the unity
931 * matrix. However, in Windows, this is not the case. This doesn't
932 * make a lot of sense to me, but that's the way it is.
936 if ((mode
<= 0) || (mode
> GM_LAST
)) return 0;
937 ret
= dc
->w
.GraphicsMode
;
938 dc
->w
.GraphicsMode
= mode
;
943 /***********************************************************************
944 * GetArcDirection16 (GDI.524)
946 INT16 WINAPI
GetArcDirection16( HDC16 hdc
)
948 return GetArcDirection( (HDC
)hdc
);
952 /***********************************************************************
953 * GetArcDirection32 (GDI32.141)
955 INT WINAPI
GetArcDirection( HDC hdc
)
957 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
962 return dc
->w
.ArcDirection
;
966 /***********************************************************************
967 * SetArcDirection16 (GDI.525)
969 INT16 WINAPI
SetArcDirection16( HDC16 hdc
, INT16 nDirection
)
971 return SetArcDirection( (HDC
)hdc
, (INT
)nDirection
);
975 /***********************************************************************
976 * SetArcDirection32 (GDI32.302)
978 INT WINAPI
SetArcDirection( HDC hdc
, INT nDirection
)
980 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
986 if (nDirection
!=AD_COUNTERCLOCKWISE
&& nDirection
!=AD_CLOCKWISE
)
988 SetLastError(ERROR_INVALID_PARAMETER
);
992 nOldDirection
= dc
->w
.ArcDirection
;
993 dc
->w
.ArcDirection
= nDirection
;
995 return nOldDirection
;
999 /***********************************************************************
1000 * GetWorldTransform (GDI32.244)
1002 BOOL WINAPI
GetWorldTransform( HDC hdc
, LPXFORM xform
)
1004 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
1011 *xform
= dc
->w
.xformWorld2Wnd
;
1017 /***********************************************************************
1018 * SetWorldTransform (GDI32.346)
1020 BOOL WINAPI
SetWorldTransform( HDC hdc
, const XFORM
*xform
)
1022 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
1026 SetLastError( ERROR_INVALID_HANDLE
);
1033 /* Check that graphics mode is GM_ADVANCED */
1034 if (dc
->w
.GraphicsMode
!=GM_ADVANCED
)
1037 dc
->w
.xformWorld2Wnd
= *xform
;
1039 DC_UpdateXforms( dc
);
1045 /****************************************************************************
1046 * ModifyWorldTransform [GDI32.253]
1047 * Modifies the world transformation for a device context.
1050 * hdc [I] Handle to device context
1051 * xform [I] XFORM structure that will be used to modify the world
1053 * iMode [I] Specifies in what way to modify the world transformation
1056 * Resets the world transformation to the identity matrix.
1057 * The parameter xform is ignored.
1059 * Multiplies xform into the world transformation matrix from
1062 * Multiplies xform into the world transformation matrix from
1067 BOOL WINAPI
ModifyWorldTransform( HDC hdc
, const XFORM
*xform
,
1070 DC
* dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
1072 /* Check for illegal parameters */
1075 SetLastError( ERROR_INVALID_HANDLE
);
1081 /* Check that graphics mode is GM_ADVANCED */
1082 if (dc
->w
.GraphicsMode
!=GM_ADVANCED
)
1088 dc
->w
.xformWorld2Wnd
.eM11
= 1.0f
;
1089 dc
->w
.xformWorld2Wnd
.eM12
= 0.0f
;
1090 dc
->w
.xformWorld2Wnd
.eM21
= 0.0f
;
1091 dc
->w
.xformWorld2Wnd
.eM22
= 1.0f
;
1092 dc
->w
.xformWorld2Wnd
.eDx
= 0.0f
;
1093 dc
->w
.xformWorld2Wnd
.eDy
= 0.0f
;
1095 case MWT_LEFTMULTIPLY
:
1096 CombineTransform( &dc
->w
.xformWorld2Wnd
, xform
,
1097 &dc
->w
.xformWorld2Wnd
);
1099 case MWT_RIGHTMULTIPLY
:
1100 CombineTransform( &dc
->w
.xformWorld2Wnd
, &dc
->w
.xformWorld2Wnd
,
1107 DC_UpdateXforms( dc
);
1113 /****************************************************************************
1114 * CombineTransform [GDI32.20]
1115 * Combines two transformation matrices.
1118 * xformResult [O] Stores the result of combining the two matrices
1119 * xform1 [I] Specifies the first matrix to apply
1120 * xform2 [I] Specifies the second matrix to apply
1123 * The same matrix can be passed in for more than one of the parameters.
1127 BOOL WINAPI
CombineTransform( LPXFORM xformResult
, const XFORM
*xform1
,
1128 const XFORM
*xform2
)
1132 /* Check for illegal parameters */
1133 if (!xformResult
|| !xform1
|| !xform2
)
1136 /* Create the result in a temporary XFORM, since xformResult may be
1137 * equal to xform1 or xform2 */
1138 xformTemp
.eM11
= xform1
->eM11
* xform2
->eM11
+
1139 xform1
->eM12
* xform2
->eM21
;
1140 xformTemp
.eM12
= xform1
->eM11
* xform2
->eM12
+
1141 xform1
->eM12
* xform2
->eM22
;
1142 xformTemp
.eM21
= xform1
->eM21
* xform2
->eM11
+
1143 xform1
->eM22
* xform2
->eM21
;
1144 xformTemp
.eM22
= xform1
->eM21
* xform2
->eM12
+
1145 xform1
->eM22
* xform2
->eM22
;
1146 xformTemp
.eDx
= xform1
->eDx
* xform2
->eM11
+
1147 xform1
->eDy
* xform2
->eM21
+
1149 xformTemp
.eDy
= xform1
->eDx
* xform2
->eM12
+
1150 xform1
->eDy
* xform2
->eM22
+
1153 /* Copy the result to xformResult */
1154 *xformResult
= xformTemp
;
1160 /***********************************************************************
1161 * SetDCHook (GDI.190)
1163 BOOL16 WINAPI
SetDCHook( HDC16 hdc
, FARPROC16 hookProc
, DWORD dwHookData
)
1165 DC
*dc
= (DC
*)GDI_GetObjPtr( hdc
, DC_MAGIC
);
1167 TRACE(dc
, "hookProc %08x, default is %08x\n",
1168 (UINT
)hookProc
, (UINT
)DCHook16
);
1170 if (!dc
) return FALSE
;
1171 dc
->hookProc
= hookProc
;
1172 dc
->dwHookData
= dwHookData
;
1173 GDI_HEAP_UNLOCK( hdc
);
1178 /***********************************************************************
1179 * GetDCHook (GDI.191)
1181 DWORD WINAPI
GetDCHook( HDC16 hdc
, FARPROC16
*phookProc
)
1183 DC
*dc
= (DC
*)GDI_GetObjPtr( hdc
, DC_MAGIC
);
1185 *phookProc
= dc
->hookProc
;
1186 GDI_HEAP_UNLOCK( hdc
);
1187 return dc
->dwHookData
;
1191 /***********************************************************************
1192 * SetHookFlags (GDI.192)
1194 WORD WINAPI
SetHookFlags16(HDC16 hDC
, WORD flags
)
1196 DC
* dc
= (DC
*)GDI_GetObjPtr( hDC
, DC_MAGIC
);
1200 WORD wRet
= dc
->w
.flags
& DC_DIRTY
;
1202 /* "Undocumented Windows" info is slightly confusing.
1205 TRACE(dc
,"hDC %04x, flags %04x\n",hDC
,flags
);
1207 if( flags
& DCHF_INVALIDATEVISRGN
)
1208 dc
->w
.flags
|= DC_DIRTY
;
1209 else if( flags
& DCHF_VALIDATEVISRGN
|| !flags
)
1210 dc
->w
.flags
&= ~DC_DIRTY
;
1211 GDI_HEAP_UNLOCK( hDC
);
1217 /***********************************************************************
1218 * SetICMMode (GDI32.318)
1220 INT WINAPI
SetICMMode(HDC hdc
, INT iEnableICM
)
1222 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1223 if (iEnableICM
== ICM_OFF
) return ICM_OFF
;
1224 if (iEnableICM
== ICM_ON
) return 0;
1225 if (iEnableICM
== ICM_QUERY
) return ICM_OFF
;
1230 /***********************************************************************
1231 * GetColorSpace (GDI32.165)
1233 HCOLORSPACE WINAPI
GetColorSpace(HDC hdc
)
1235 /*FIXME Need to to whatever GetColorSpace actually does */
1239 /***********************************************************************
1240 * GetBoundsRect16 (GDI.194)
1242 UINT16 WINAPI
GetBoundsRect16(HDC16 hdc
, LPRECT16 rect
, UINT16 flags
)
1244 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1247 /***********************************************************************
1248 * GetBoundsRect32 (GDI32.147)
1250 UINT WINAPI
GetBoundsRect(HDC hdc
, LPRECT rect
, UINT flags
)
1252 FIXME(dc
, "(): stub\n");
1253 return DCB_RESET
; /* bounding rectangle always empty */
1256 /***********************************************************************
1257 * SetBoundsRect16 (GDI.193)
1259 UINT16 WINAPI
SetBoundsRect16(HDC16 hdc
, const RECT16
* rect
, UINT16 flags
)
1261 if ( (flags
& DCB_ACCUMULATE
) || (flags
& DCB_ENABLE
) )
1262 FIXME( dc
, "(%04x, %p, %04x): stub\n", hdc
, rect
, flags
);
1264 return DCB_RESET
| DCB_DISABLE
; /* bounding rectangle always empty and disabled*/
1267 /***********************************************************************
1268 * SetBoundsRect32 (GDI32.307)
1270 UINT WINAPI
SetBoundsRect(HDC hdc
, const RECT
* rect
, UINT flags
)
1272 FIXME(dc
, "(): stub\n");
1273 return DCB_DISABLE
; /* bounding rectangle always empty */
1276 /***********************************************************************
1279 * Disables GDI, switches back to text mode.
1280 * We don't have to do anything here,
1281 * just let console support handle everything
1283 void WINAPI
Death16(HDC16 hDC
)
1285 MSG("Death(%04x) called. Application enters text mode...\n", hDC
);
1288 /***********************************************************************
1289 * Resurrection (GDI.122)
1291 * Restores GDI functionality
1293 void WINAPI
Resurrection16(HDC16 hDC
,
1294 WORD w1
, WORD w2
, WORD w3
, WORD w4
, WORD w5
, WORD w6
)
1296 MSG("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC
, w1
, w2
, w3
, w4
, w5
, w6
);