?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Initialize lpdwNeeded.
[wine/multimedia.git] / objects / dc.c
blob73b303c91275f72f1f2961ad268641d3c3a486e1
1 /*
2 * GDI Device Context functions
3 *
4 * Copyright 1993 Alexandre Julliard
5 *
6 */
7
8 #include <stdlib.h>
9 #include <string.h>
10 #include "dc.h"
11 #include "gdi.h"
12 #include "heap.h"
13 #include "metafile.h"
14 #include "debug.h"
15 #include "font.h"
16 #include "winerror.h"
17 #include "x11drv.h"
18
19 /***********************************************************************
20 * DC_Init_DC_INFO
21 *
22 * Fill the WIN_DC_INFO structure.
23 */
24 static void DC_Init_DC_INFO( WIN_DC_INFO *win_dc_info )
25 {
26 win_dc_info->flags = 0;
27 win_dc_info->devCaps = NULL;
28 win_dc_info->hClipRgn = 0;
29 win_dc_info->hVisRgn = 0;
30 win_dc_info->hGCClipRgn = 0;
31 win_dc_info->hPen = STOCK_BLACK_PEN;
32 win_dc_info->hBrush = STOCK_WHITE_BRUSH;
33 win_dc_info->hFont = STOCK_SYSTEM_FONT;
34 win_dc_info->hBitmap = 0;
35 win_dc_info->hFirstBitmap = 0;
36 win_dc_info->hDevice = 0;
37 win_dc_info->hPalette = STOCK_DEFAULT_PALETTE;
38 win_dc_info->ROPmode = R2_COPYPEN;
39 win_dc_info->polyFillMode = ALTERNATE;
40 win_dc_info->stretchBltMode = BLACKONWHITE;
41 win_dc_info->relAbsMode = ABSOLUTE;
42 win_dc_info->backgroundMode = OPAQUE;
43 win_dc_info->backgroundColor = RGB( 255, 255, 255 );
44 win_dc_info->textColor = RGB( 0, 0, 0 );
45 win_dc_info->brushOrgX = 0;
46 win_dc_info->brushOrgY = 0;
47 win_dc_info->textAlign = TA_LEFT | TA_TOP | TA_NOUPDATECP;
48 win_dc_info->charExtra = 0;
49 win_dc_info->breakTotalExtra = 0;
50 win_dc_info->breakCount = 0;
51 win_dc_info->breakExtra = 0;
52 win_dc_info->breakRem = 0;
53 win_dc_info->bitsPerPixel = 1;
54 win_dc_info->MapMode = MM_TEXT;
55 win_dc_info->GraphicsMode = GM_COMPATIBLE;
56 win_dc_info->DCOrgX = 0;
57 win_dc_info->DCOrgY = 0;
58 win_dc_info->lpfnPrint = NULL;
59 win_dc_info->CursPosX = 0;
60 win_dc_info->CursPosY = 0;
61 win_dc_info->ArcDirection = AD_COUNTERCLOCKWISE;
62 win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
63 win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
64 win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
65 win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
66 win_dc_info->xformWorld2Wnd.eDx = 0.0f;
67 win_dc_info->xformWorld2Wnd.eDy = 0.0f;
68 win_dc_info->xformWorld2Vport = win_dc_info->xformWorld2Wnd;
69 win_dc_info->xformVport2World = win_dc_info->xformWorld2Wnd;
70 win_dc_info->vport2WorldValid = TRUE;
71
72 PATH_InitGdiPath(&win_dc_info->path);
73 }
74
75
76 /***********************************************************************
77 * DC_AllocDC
78 */
79 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
80 {
81 HDC16 hdc;
82 DC *dc;
83
84 if (!(hdc = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return NULL;
85 dc = (DC *) GDI_HEAP_LOCK( hdc );
86
87 dc->hSelf = hdc;
88 dc->funcs = funcs;
89 dc->physDev = NULL;
90 dc->saveLevel = 0;
91 dc->dwHookData = 0L;
92 dc->hookProc = NULL;
93 dc->wndOrgX = 0;
94 dc->wndOrgY = 0;
95 dc->wndExtX = 1;
96 dc->wndExtY = 1;
97 dc->vportOrgX = 0;
98 dc->vportOrgY = 0;
99 dc->vportExtX = 1;
100 dc->vportExtY = 1;
101
102 DC_Init_DC_INFO( &dc->w );
103
104 return dc;
105 }
106
107
108
109 /***********************************************************************
110 * DC_GetDCPtr
111 */
112 DC *DC_GetDCPtr( HDC32 hdc )
113 {
114 GDIOBJHDR *ptr = (GDIOBJHDR *)GDI_HEAP_LOCK( hdc );
115 if (!ptr) return NULL;
116 if ((ptr->wMagic == DC_MAGIC) || (ptr->wMagic == METAFILE_DC_MAGIC))
117 return (DC *)ptr;
118 GDI_HEAP_UNLOCK( hdc );
119 return NULL;
120 }
121
122
123 /***********************************************************************
124 * DC_InitDC
125 *
126 * Setup device-specific DC values for a newly created DC.
127 */
128 void DC_InitDC( DC* dc )
129 {
130 RealizeDefaultPalette( dc->hSelf );
131 SetTextColor32( dc->hSelf, dc->w.textColor );
132 SetBkColor32( dc->hSelf, dc->w.backgroundColor );
133 SelectObject32( dc->hSelf, dc->w.hPen );
134 SelectObject32( dc->hSelf, dc->w.hBrush );
135 SelectObject32( dc->hSelf, dc->w.hFont );
136 CLIPPING_UpdateGCRegion( dc );
137 }
138
139
140 /***********************************************************************
141 * DC_InvertXform
142 *
143 * Computes the inverse of the transformation xformSrc and stores it to
144 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
145 * is singular.
146 */
147 static BOOL32 DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
148 {
149 FLOAT determinant;
150
151 determinant = xformSrc->eM11*xformSrc->eM22 -
152 xformSrc->eM12*xformSrc->eM21;
153 if (determinant > -1e-12 && determinant < 1e-12)
154 return FALSE;
155
156 xformDest->eM11 = xformSrc->eM22 / determinant;
157 xformDest->eM12 = -xformSrc->eM12 / determinant;
158 xformDest->eM21 = -xformSrc->eM21 / determinant;
159 xformDest->eM22 = xformSrc->eM11 / determinant;
160 xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
161 xformSrc->eDy * xformDest->eM21;
162 xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
163 xformSrc->eDy * xformDest->eM22;
164
165 return TRUE;
166 }
167
168
169 /***********************************************************************
170 * DC_UpdateXforms
171 *
172 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
173 * fields of the specified DC by creating a transformation that
174 * represents the current mapping mode and combining it with the DC's
175 * world transform. This function should be called whenever the
176 * parameters associated with the mapping mode (window and viewport
177 * extents and origins) or the world transform change.
178 */
179 void DC_UpdateXforms( DC *dc )
180 {
181 XFORM xformWnd2Vport;
182 FLOAT scaleX, scaleY;
183
184 /* Construct a transformation to do the window-to-viewport conversion */
185 scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
186 scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
187 xformWnd2Vport.eM11 = scaleX;
188 xformWnd2Vport.eM12 = 0.0;
189 xformWnd2Vport.eM21 = 0.0;
190 xformWnd2Vport.eM22 = scaleY;
191 xformWnd2Vport.eDx = (FLOAT)dc->vportOrgX -
192 scaleX * (FLOAT)dc->wndOrgX;
193 xformWnd2Vport.eDy = (FLOAT)dc->vportOrgY -
194 scaleY * (FLOAT)dc->wndOrgY;
195
196 /* Combine with the world transformation */
197 CombineTransform( &dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd,
198 &xformWnd2Vport );
199
200 /* Create inverse of world-to-viewport transformation */
201 dc->w.vport2WorldValid = DC_InvertXform( &dc->w.xformWorld2Vport,
202 &dc->w.xformVport2World );
203 }
204
205
206 /***********************************************************************
207 * GetDCState (GDI.179)
208 */
209 HDC16 WINAPI GetDCState( HDC16 hdc )
210 {
211 DC * newdc, * dc;
212 HGDIOBJ16 handle;
213
214 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
215 if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC )))
216 {
217 GDI_HEAP_UNLOCK( hdc );
218 return 0;
219 }
220 newdc = (DC *) GDI_HEAP_LOCK( handle );
221
222 TRACE(dc, "(%04x): returning %04x\n", hdc, handle );
223
224 newdc->w.flags = dc->w.flags | DC_SAVED;
225 newdc->w.devCaps = dc->w.devCaps;
226 newdc->w.hPen = dc->w.hPen;
227 newdc->w.hBrush = dc->w.hBrush;
228 newdc->w.hFont = dc->w.hFont;
229 newdc->w.hBitmap = dc->w.hBitmap;
230 newdc->w.hFirstBitmap = dc->w.hFirstBitmap;
231 newdc->w.hDevice = dc->w.hDevice;
232 newdc->w.hPalette = dc->w.hPalette;
233 newdc->w.totalExtent = dc->w.totalExtent;
234 newdc->w.bitsPerPixel = dc->w.bitsPerPixel;
235 newdc->w.ROPmode = dc->w.ROPmode;
236 newdc->w.polyFillMode = dc->w.polyFillMode;
237 newdc->w.stretchBltMode = dc->w.stretchBltMode;
238 newdc->w.relAbsMode = dc->w.relAbsMode;
239 newdc->w.backgroundMode = dc->w.backgroundMode;
240 newdc->w.backgroundColor = dc->w.backgroundColor;
241 newdc->w.textColor = dc->w.textColor;
242 newdc->w.brushOrgX = dc->w.brushOrgX;
243 newdc->w.brushOrgY = dc->w.brushOrgY;
244 newdc->w.textAlign = dc->w.textAlign;
245 newdc->w.charExtra = dc->w.charExtra;
246 newdc->w.breakTotalExtra = dc->w.breakTotalExtra;
247 newdc->w.breakCount = dc->w.breakCount;
248 newdc->w.breakExtra = dc->w.breakExtra;
249 newdc->w.breakRem = dc->w.breakRem;
250 newdc->w.MapMode = dc->w.MapMode;
251 newdc->w.GraphicsMode = dc->w.GraphicsMode;
252 #if 0
253 /* Apparently, the DC origin is not changed by [GS]etDCState */
254 newdc->w.DCOrgX = dc->w.DCOrgX;
255 newdc->w.DCOrgY = dc->w.DCOrgY;
256 #endif
257 newdc->w.CursPosX = dc->w.CursPosX;
258 newdc->w.CursPosY = dc->w.CursPosY;
259 newdc->w.ArcDirection = dc->w.ArcDirection;
260 newdc->w.xformWorld2Wnd = dc->w.xformWorld2Wnd;
261 newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
262 newdc->w.xformVport2World = dc->w.xformVport2World;
263 newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
264 newdc->wndOrgX = dc->wndOrgX;
265 newdc->wndOrgY = dc->wndOrgY;
266 newdc->wndExtX = dc->wndExtX;
267 newdc->wndExtY = dc->wndExtY;
268 newdc->vportOrgX = dc->vportOrgX;
269 newdc->vportOrgY = dc->vportOrgY;
270 newdc->vportExtX = dc->vportExtX;
271 newdc->vportExtY = dc->vportExtY;
272
273 newdc->hSelf = (HDC32)handle;
274 newdc->saveLevel = 0;
275
276 PATH_InitGdiPath( &newdc->w.path );
277
278 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
279
280 newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
281 if (dc->w.hClipRgn)
282 {
283 newdc->w.hClipRgn = CreateRectRgn32( 0, 0, 0, 0 );
284 CombineRgn32( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
285 }
286 else
287 newdc->w.hClipRgn = 0;
288 GDI_HEAP_UNLOCK( handle );
289 GDI_HEAP_UNLOCK( hdc );
290 return handle;
291 }
292
293
294 /***********************************************************************
295 * SetDCState (GDI.180)
296 */
297 void WINAPI SetDCState( HDC16 hdc, HDC16 hdcs )
298 {
299 DC *dc, *dcs;
300
301 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
302 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
303 {
304 GDI_HEAP_UNLOCK( hdc );
305 return;
306 }
307 if (!dcs->w.flags & DC_SAVED)
308 {
309 GDI_HEAP_UNLOCK( hdc );
310 GDI_HEAP_UNLOCK( hdcs );
311 return;
312 }
313 TRACE(dc, "%04x %04x\n", hdc, hdcs );
314
315 dc->w.flags = dcs->w.flags & ~DC_SAVED;
316 dc->w.devCaps = dcs->w.devCaps;
317 dc->w.hFirstBitmap = dcs->w.hFirstBitmap;
318 dc->w.hDevice = dcs->w.hDevice;
319 dc->w.totalExtent = dcs->w.totalExtent;
320 dc->w.ROPmode = dcs->w.ROPmode;
321 dc->w.polyFillMode = dcs->w.polyFillMode;
322 dc->w.stretchBltMode = dcs->w.stretchBltMode;
323 dc->w.relAbsMode = dcs->w.relAbsMode;
324 dc->w.backgroundMode = dcs->w.backgroundMode;
325 dc->w.backgroundColor = dcs->w.backgroundColor;
326 dc->w.textColor = dcs->w.textColor;
327 dc->w.brushOrgX = dcs->w.brushOrgX;
328 dc->w.brushOrgY = dcs->w.brushOrgY;
329 dc->w.textAlign = dcs->w.textAlign;
330 dc->w.charExtra = dcs->w.charExtra;
331 dc->w.breakTotalExtra = dcs->w.breakTotalExtra;
332 dc->w.breakCount = dcs->w.breakCount;
333 dc->w.breakExtra = dcs->w.breakExtra;
334 dc->w.breakRem = dcs->w.breakRem;
335 dc->w.MapMode = dcs->w.MapMode;
336 dc->w.GraphicsMode = dcs->w.GraphicsMode;
337 #if 0
338 /* Apparently, the DC origin is not changed by [GS]etDCState */
339 dc->w.DCOrgX = dcs->w.DCOrgX;
340 dc->w.DCOrgY = dcs->w.DCOrgY;
341 #endif
342 dc->w.CursPosX = dcs->w.CursPosX;
343 dc->w.CursPosY = dcs->w.CursPosY;
344 dc->w.ArcDirection = dcs->w.ArcDirection;
345 dc->w.xformWorld2Wnd = dcs->w.xformWorld2Wnd;
346 dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
347 dc->w.xformVport2World = dcs->w.xformVport2World;
348 dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
349
350 dc->wndOrgX = dcs->wndOrgX;
351 dc->wndOrgY = dcs->wndOrgY;
352 dc->wndExtX = dcs->wndExtX;
353 dc->wndExtY = dcs->wndExtY;
354 dc->vportOrgX = dcs->vportOrgX;
355 dc->vportOrgY = dcs->vportOrgY;
356 dc->vportExtX = dcs->vportExtX;
357 dc->vportExtY = dcs->vportExtY;
358
359 if (!(dc->w.flags & DC_MEMORY)) dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
360
361 if (dcs->w.hClipRgn)
362 {
363 if (!dc->w.hClipRgn) dc->w.hClipRgn = CreateRectRgn32( 0, 0, 0, 0 );
364 CombineRgn32( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
365 }
366 else
367 {
368 if (dc->w.hClipRgn) DeleteObject16( dc->w.hClipRgn );
369 dc->w.hClipRgn = 0;
370 }
371 CLIPPING_UpdateGCRegion( dc );
372
373 SelectObject32( hdc, dcs->w.hBitmap );
374 SelectObject32( hdc, dcs->w.hBrush );
375 SelectObject32( hdc, dcs->w.hFont );
376 SelectObject32( hdc, dcs->w.hPen );
377 SetBkColor32( hdc, dcs->w.backgroundColor);
378 SetTextColor32( hdc, dcs->w.textColor);
379 GDISelectPalette( hdc, dcs->w.hPalette, FALSE );
380 GDI_HEAP_UNLOCK( hdc );
381 GDI_HEAP_UNLOCK( hdcs );
382 }
383
384
385 /***********************************************************************
386 * SaveDC16 (GDI.30)
387 */
388 INT16 WINAPI SaveDC16( HDC16 hdc )
389 {
390 return (INT16)SaveDC32( hdc );
391 }
392
393
394 /***********************************************************************
395 * SaveDC32 (GDI32.292)
396 */
397 INT32 WINAPI SaveDC32( HDC32 hdc )
398 {
399 HDC32 hdcs;
400 DC * dc, * dcs;
401 INT32 ret;
402
403 dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
404 if (!dc)
405 {
406 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
407 if (!dc) return 0;
408 MF_MetaParam0(dc, META_SAVEDC);
409 GDI_HEAP_UNLOCK( hdc );
410 return 1; /* ?? */
411 }
412 if (!(hdcs = GetDCState( hdc )))
413 {
414 GDI_HEAP_UNLOCK( hdc );
415 return 0;
416 }
417 dcs = (DC *) GDI_HEAP_LOCK( hdcs );
418
419 /* Copy path. The reason why path saving / restoring is in SaveDC/
420 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
421 * functions are only in Win16 (which doesn't have paths) and that
422 * SetDCState doesn't allow us to signal an error (which can happen
423 * when copying paths).
424 */
425 if (!PATH_AssignGdiPath( &dcs->w.path, &dc->w.path ))
426 {
427 GDI_HEAP_UNLOCK( hdc );
428 GDI_HEAP_UNLOCK( hdcs );
429 DeleteDC32( hdcs );
430 return 0;
431 }
432
433 dcs->header.hNext = dc->header.hNext;
434 dc->header.hNext = hdcs;
435 TRACE(dc, "(%04x): returning %d\n", hdc, dc->saveLevel+1 );
436 ret = ++dc->saveLevel;
437 GDI_HEAP_UNLOCK( hdcs );
438 GDI_HEAP_UNLOCK( hdc );
439 return ret;
440 }
441
442
443 /***********************************************************************
444 * RestoreDC16 (GDI.39)
445 */
446 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
447 {
448 return RestoreDC32( hdc, level );
449 }
450
451
452 /***********************************************************************
453 * RestoreDC32 (GDI32.290)
454 */
455 BOOL32 WINAPI RestoreDC32( HDC32 hdc, INT32 level )
456 {
457 DC * dc, * dcs;
458 BOOL32 success;
459
460 TRACE(dc, "%04x %d\n", hdc, level );
461 dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
462 if (!dc)
463 {
464 dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
465 if (!dc) return FALSE;
466 if (level != -1)
467 {
468 GDI_HEAP_UNLOCK( hdc );
469 return FALSE;
470 }
471 MF_MetaParam1(dc, META_RESTOREDC, level);
472 GDI_HEAP_UNLOCK( hdc );
473 return TRUE;
474 }
475 if (level == -1) level = dc->saveLevel;
476 if ((level < 1) || (level > dc->saveLevel))
477 {
478 GDI_HEAP_UNLOCK( hdc );
479 return FALSE;
480 }
481
482 success=TRUE;
483 while (dc->saveLevel >= level)
484 {
485 HDC16 hdcs = dc->header.hNext;
486 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
487 {
488 GDI_HEAP_UNLOCK( hdc );
489 return FALSE;
490 }
491 dc->header.hNext = dcs->header.hNext;
492 if (--dc->saveLevel < level)
493 {
494 SetDCState( hdc, hdcs );
495 if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
496 /* FIXME: This might not be quite right, since we're
497 * returning FALSE but still destroying the saved DC state */
498 success=FALSE;
499 }
500 DeleteDC32( hdcs );
501 }
502 GDI_HEAP_UNLOCK( hdc );
503 return success;
504 }
505
506
507 /***********************************************************************
508 * CreateDC16 (GDI.53)
509 */
510 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
511 const DEVMODE16 *initData )
512 {
513 DC * dc;
514 const DC_FUNCTIONS *funcs;
515
516 if (!(funcs = DRIVER_FindDriver( driver ))) return 0;
517 if (!(dc = DC_AllocDC( funcs ))) return 0;
518 dc->w.flags = 0;
519
520 TRACE(dc, "(driver=%s, device=%s, output=%s): returning %04x\n",
521 debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
522
523 if (dc->funcs->pCreateDC &&
524 !dc->funcs->pCreateDC( dc, driver, device, output, initData ))
525 {
526 WARN(dc, "creation aborted by device\n" );
527 GDI_HEAP_FREE( dc->hSelf );
528 return 0;
529 }
530
531 DC_InitDC( dc );
532 GDI_HEAP_UNLOCK( dc->hSelf );
533 return dc->hSelf;
534 }
535
536
537 /***********************************************************************
538 * CreateDC32A (GDI32.)
539 */
540 HDC32 WINAPI CreateDC32A( LPCSTR driver, LPCSTR device, LPCSTR output,
541 const DEVMODE32A *initData )
542 {
543 return CreateDC16( driver, device, output, (const DEVMODE16 *)initData );
544 }
545
546
547 /***********************************************************************
548 * CreateDC32W (GDI32.)
549 */
550 HDC32 WINAPI CreateDC32W( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
551 const DEVMODE32W *initData )
552 {
553 LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
554 LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
555 LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
556 HDC32 res = CreateDC16( driverA, deviceA, outputA,
557 (const DEVMODE16 *)initData /*FIXME*/ );
558 HeapFree( GetProcessHeap(), 0, driverA );
559 HeapFree( GetProcessHeap(), 0, deviceA );
560 HeapFree( GetProcessHeap(), 0, outputA );
561 return res;
562 }
563
564
565 /***********************************************************************
566 * CreateIC16 (GDI.153)
567 */
568 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
569 const DEVMODE16* initData )
570 {
571 /* Nothing special yet for ICs */
572 return CreateDC16( driver, device, output, initData );
573 }
574
575
576 /***********************************************************************
577 * CreateIC32A (GDI32.49)
578 */
579 HDC32 WINAPI CreateIC32A( LPCSTR driver, LPCSTR device, LPCSTR output,
580 const DEVMODE32A* initData )
581 {
582 /* Nothing special yet for ICs */
583 return CreateDC32A( driver, device, output, initData );
584 }
585
586
587 /***********************************************************************
588 * CreateIC32W (GDI32.50)
589 */
590 HDC32 WINAPI CreateIC32W( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
591 const DEVMODE32W* initData )
592 {
593 /* Nothing special yet for ICs */
594 return CreateDC32W( driver, device, output, initData );
595 }
596
597
598 /***********************************************************************
599 * CreateCompatibleDC16 (GDI.52)
600 */
601 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
602 {
603 return (HDC16)CreateCompatibleDC32( hdc );
604 }
605
606
607 /***********************************************************************
608 * CreateCompatibleDC32 (GDI32.31)
609 */
610 HDC32 WINAPI CreateCompatibleDC32( HDC32 hdc )
611 {
612 DC *dc, *origDC;
613 HBITMAP32 hbitmap;
614 const DC_FUNCTIONS *funcs;
615
616 if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
617 else funcs = DRIVER_FindDriver( "DISPLAY" );
618 if (!funcs) return 0;
619
620 if (!(dc = DC_AllocDC( funcs ))) return 0;
621
622 TRACE(dc, "(%04x): returning %04x\n",
623 hdc, dc->hSelf );
624
625 /* Create default bitmap */
626 if (!(hbitmap = CreateBitmap32( 1, 1, 1, 1, NULL )))
627 {
628 GDI_HEAP_FREE( dc->hSelf );
629 return 0;
630 }
631 dc->w.flags = DC_MEMORY;
632 dc->w.bitsPerPixel = 1;
633 dc->w.hBitmap = hbitmap;
634 dc->w.hFirstBitmap = hbitmap;
635
636 if (dc->funcs->pCreateDC &&
637 !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
638 {
639 WARN(dc, "creation aborted by device\n");
640 DeleteObject32( hbitmap );
641 GDI_HEAP_FREE( dc->hSelf );
642 return 0;
643 }
644
645 DC_InitDC( dc );
646 GDI_HEAP_UNLOCK( dc->hSelf );
647 return dc->hSelf;
648 }
649
650
651 /***********************************************************************
652 * DeleteDC16 (GDI.68)
653 */
654 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
655 {
656 return DeleteDC32( hdc );
657 }
658
659
660 /***********************************************************************
661 * DeleteDC32 (GDI32.67)
662 */
663 BOOL32 WINAPI DeleteDC32( HDC32 hdc )
664 {
665 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
666 if (!dc) return FALSE;
667
668 TRACE(dc, "%04x\n", hdc );
669
670 while (dc->saveLevel)
671 {
672 DC * dcs;
673 HDC16 hdcs = dc->header.hNext;
674 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
675 dc->header.hNext = dcs->header.hNext;
676 dc->saveLevel--;
677 DeleteDC32( hdcs );
678 }
679
680 if (!(dc->w.flags & DC_SAVED))
681 {
682 SelectObject32( hdc, STOCK_BLACK_PEN );
683 SelectObject32( hdc, STOCK_WHITE_BRUSH );
684 SelectObject32( hdc, STOCK_SYSTEM_FONT );
685 if (dc->w.flags & DC_MEMORY) DeleteObject32( dc->w.hFirstBitmap );
686 if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
687 }
688
689 if (dc->w.hClipRgn) DeleteObject32( dc->w.hClipRgn );
690 if (dc->w.hVisRgn) DeleteObject32( dc->w.hVisRgn );
691 if (dc->w.hGCClipRgn) DeleteObject32( dc->w.hGCClipRgn );
692
693 PATH_DestroyGdiPath(&dc->w.path);
694
695 return GDI_FreeObject( hdc );
696 }
697
698
699 /***********************************************************************
700 * ResetDC16 (GDI.376)
701 */
702 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODE16 *devmode )
703 {
704 FIXME(dc, "stub\n" );
705 return hdc;
706 }
707
708
709 /***********************************************************************
710 * ResetDC32A (GDI32.287)
711 */
712 HDC32 WINAPI ResetDC32A( HDC32 hdc, const DEVMODE32A *devmode )
713 {
714 FIXME(dc, "stub\n" );
715 return hdc;
716 }
717
718
719 /***********************************************************************
720 * ResetDC32W (GDI32.288)
721 */
722 HDC32 WINAPI ResetDC32W( HDC32 hdc, const DEVMODE32W *devmode )
723 {
724 FIXME(dc, "stub\n" );
725 return hdc;
726 }
727
728
729 /***********************************************************************
730 * GetDeviceCaps16 (GDI.80)
731 */
732 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
733 {
734 return GetDeviceCaps32( hdc, cap );
735 }
736
737
738 /***********************************************************************
739 * GetDeviceCaps32 (GDI32.171)
740 */
741 INT32 WINAPI GetDeviceCaps32( HDC32 hdc, INT32 cap )
742 {
743 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
744 INT32 ret;
745
746 if (!dc) return 0;
747
748 if ((cap < 0) || (cap > sizeof(DeviceCaps)-sizeof(WORD)))
749 {
750 GDI_HEAP_UNLOCK( hdc );
751 return 0;
752 }
753
754 TRACE(dc, "(%04x,%d): returning %d\n",
755 hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
756 ret = *(WORD *)(((char *)dc->w.devCaps) + cap);
757 GDI_HEAP_UNLOCK( hdc );
758 return ret;
759 }
760
761
762 /***********************************************************************
763 * SetBkColor16 (GDI.1)
764 */
765 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
766 {
767 return SetBkColor32( hdc, color );
768 }
769
770
771 /***********************************************************************
772 * SetBkColor32 (GDI32.305)
773 */
774 COLORREF WINAPI SetBkColor32( HDC32 hdc, COLORREF color )
775 {
776 COLORREF oldColor;
777 DC * dc = DC_GetDCPtr( hdc );
778
779 if (!dc) return 0x80000000;
780 if (dc->funcs->pSetBkColor)
781 oldColor = dc->funcs->pSetBkColor(dc, color);
782 else {
783 oldColor = dc->w.backgroundColor;
784 dc->w.backgroundColor = color;
785 }
786 GDI_HEAP_UNLOCK( hdc );
787 return oldColor;
788 }
789
790
791 /***********************************************************************
792 * SetTextColor16 (GDI.9)
793 */
794 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
795 {
796 return SetTextColor32( hdc, color );
797 }
798
799
800 /***********************************************************************
801 * SetTextColor32 (GDI32.338)
802 */
803 COLORREF WINAPI SetTextColor32( HDC32 hdc, COLORREF color )
804 {
805 COLORREF oldColor;
806 DC * dc = DC_GetDCPtr( hdc );
807
808 if (!dc) return 0x80000000;
809 if (dc->funcs->pSetTextColor)
810 oldColor = dc->funcs->pSetTextColor(dc, color);
811 else {
812 oldColor = dc->w.textColor;
813 dc->w.textColor = color;
814 }
815 GDI_HEAP_UNLOCK( hdc );
816 return oldColor;
817 }
818
819
820 /***********************************************************************
821 * SetTextAlign16 (GDI.346)
822 */
823 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 textAlign )
824 {
825 return SetTextAlign32( hdc, textAlign );
826 }
827
828
829 /***********************************************************************
830 * SetTextAlign32 (GDI32.336)
831 */
832 UINT32 WINAPI SetTextAlign32( HDC32 hdc, UINT32 textAlign )
833 {
834 UINT32 prevAlign;
835 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
836 if (!dc)
837 {
838 if (!(dc = (DC *)GDI_GetObjPtr( hdc, METAFILE_DC_MAGIC ))) return 0;
839 MF_MetaParam1( dc, META_SETTEXTALIGN, textAlign );
840 GDI_HEAP_UNLOCK( hdc );
841 return 1;
842 }
843 prevAlign = dc->w.textAlign;
844 dc->w.textAlign = textAlign;
845 GDI_HEAP_UNLOCK( hdc );
846 return prevAlign;
847 }
848
849
850 /***********************************************************************
851 * GetDCOrgEx (GDI32.168)
852 */
853 BOOL32 WINAPI GetDCOrgEx( HDC32 hDC, LPPOINT32 lpp )
854 {
855 DC * dc;
856 X11DRV_PDEVICE *physDev;
857
858 if (!lpp) return FALSE;
859 if (!(dc = (DC *) GDI_GetObjPtr( hDC, DC_MAGIC ))) return FALSE;
860 physDev = (X11DRV_PDEVICE *)dc->physDev;
861
862 if (!(dc->w.flags & DC_MEMORY))
863 {
864 Window root;
865 int w, h, border, depth;
866 /* FIXME: this is not correct for managed windows */
867 TSXGetGeometry( display, physDev->drawable, &root,
868 &lpp->x, &lpp->y, &w, &h, &border, &depth );
869 }
870 else lpp->x = lpp->y = 0;
871 lpp->x += dc->w.DCOrgX; lpp->y += dc->w.DCOrgY;
872 GDI_HEAP_UNLOCK( hDC );
873 return TRUE;
874 }
875
876
877 /***********************************************************************
878 * GetDCOrg (GDI.79)
879 */
880 DWORD WINAPI GetDCOrg( HDC16 hdc )
881 {
882 POINT32 pt;
883 if( GetDCOrgEx( hdc, &pt) )
884 return MAKELONG( (WORD)pt.x, (WORD)pt.y );
885 return 0;
886 }
887
888
889 /***********************************************************************
890 * SetDCOrg (GDI.117)
891 */
892 DWORD WINAPI SetDCOrg( HDC16 hdc, INT16 x, INT16 y )
893 {
894 DWORD prevOrg;
895 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
896 if (!dc) return 0;
897 prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);
898 dc->w.DCOrgX = x;
899 dc->w.DCOrgY = y;
900 GDI_HEAP_UNLOCK( hdc );
901 return prevOrg;
902 }
903
904
905 /***********************************************************************
906 * GetGraphicsMode (GDI32.188)
907 */
908 INT32 WINAPI GetGraphicsMode( HDC32 hdc )
909 {
910 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
911 if (!dc) return 0;
912 return dc->w.GraphicsMode;
913 }
914
915
916 /***********************************************************************
917 * SetGraphicsMode (GDI32.317)
918 */
919 INT32 WINAPI SetGraphicsMode( HDC32 hdc, INT32 mode )
920 {
921 INT32 ret;
922 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
923
924 /* One would think that setting the graphics mode to GM_COMPATIBLE
925 * would also reset the world transformation matrix to the unity
926 * matrix. However, in Windows, this is not the case. This doesn't
927 * make a lot of sense to me, but that's the way it is.
928 */
929
930 if (!dc) return 0;
931 if ((mode <= 0) || (mode > GM_LAST)) return 0;
932 ret = dc->w.GraphicsMode;
933 dc->w.GraphicsMode = mode;
934 return ret;
935 }
936
937
938 /***********************************************************************
939 * GetArcDirection16 (GDI.524)
940 */
941 INT16 WINAPI GetArcDirection16( HDC16 hdc )
942 {
943 return GetArcDirection32( (HDC32)hdc );
944 }
945
946
947 /***********************************************************************
948 * GetArcDirection32 (GDI32.141)
949 */
950 INT32 WINAPI GetArcDirection32( HDC32 hdc )
951 {
952 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
953
954 if (!dc)
955 return 0;
956
957 return dc->w.ArcDirection;
958 }
959
960
961 /***********************************************************************
962 * SetArcDirection16 (GDI.525)
963 */
964 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
965 {
966 return SetArcDirection32( (HDC32)hdc, (INT32)nDirection );
967 }
968
969
970 /***********************************************************************
971 * SetArcDirection32 (GDI32.302)
972 */
973 INT32 WINAPI SetArcDirection32( HDC32 hdc, INT32 nDirection )
974 {
975 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
976 INT32 nOldDirection;
977
978 if (!dc)
979 return 0;
980
981 if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
982 {
983 SetLastError(ERROR_INVALID_PARAMETER);
984 return 0;
985 }
986
987 nOldDirection = dc->w.ArcDirection;
988 dc->w.ArcDirection = nDirection;
989
990 return nOldDirection;
991 }
992
993
994 /***********************************************************************
995 * GetWorldTransform (GDI32.244)
996 */
997 BOOL32 WINAPI GetWorldTransform( HDC32 hdc, LPXFORM xform )
998 {
999 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1000
1001 if (!dc)
1002 return FALSE;
1003 if (!xform)
1004 return FALSE;
1005
1006 *xform = dc->w.xformWorld2Wnd;
1007
1008 return TRUE;
1009 }
1010
1011
1012 /***********************************************************************
1013 * SetWorldTransform (GDI32.346)
1014 */
1015 BOOL32 WINAPI SetWorldTransform( HDC32 hdc, const XFORM *xform )
1016 {
1017 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1018
1019 if (!dc)
1020 {
1021 SetLastError( ERROR_INVALID_HANDLE );
1022 return FALSE;
1023 }
1024
1025 if (!xform)
1026 return FALSE;
1027
1028 /* Check that graphics mode is GM_ADVANCED */
1029 if (dc->w.GraphicsMode!=GM_ADVANCED)
1030 return FALSE;
1031
1032 dc->w.xformWorld2Wnd = *xform;
1033
1034 DC_UpdateXforms( dc );
1035
1036 return TRUE;
1037 }
1038
1039
1040 /****************************************************************************
1041 * ModifyWorldTransform [GDI32.253]
1042 * Modifies the world transformation for a device context.
1043 *
1044 * PARAMS
1045 * hdc [I] Handle to device context
1046 * xform [I] XFORM structure that will be used to modify the world
1047 * transformation
1048 * iMode [I] Specifies in what way to modify the world transformation
1049 * Possible values:
1050 * MWT_IDENTITY
1051 * Resets the world transformation to the identity matrix.
1052 * The parameter xform is ignored.
1053 * MWT_LEFTMULTIPLY
1054 * Multiplies xform into the world transformation matrix from
1055 * the left.
1056 * MWT_RIGHTMULTIPLY
1057 * Multiplies xform into the world transformation matrix from
1058 * the right.
1059 *
1060 * RETURNS STD
1061 */
1062 BOOL32 WINAPI ModifyWorldTransform( HDC32 hdc, const XFORM *xform,
1063 DWORD iMode )
1064 {
1065 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1066
1067 /* Check for illegal parameters */
1068 if (!dc)
1069 {
1070 SetLastError( ERROR_INVALID_HANDLE );
1071 return FALSE;
1072 }
1073 if (!xform)
1074 return FALSE;
1075
1076 /* Check that graphics mode is GM_ADVANCED */
1077 if (dc->w.GraphicsMode!=GM_ADVANCED)
1078 return FALSE;
1079
1080 switch (iMode)
1081 {
1082 case MWT_IDENTITY:
1083 dc->w.xformWorld2Wnd.eM11 = 1.0f;
1084 dc->w.xformWorld2Wnd.eM12 = 0.0f;
1085 dc->w.xformWorld2Wnd.eM21 = 0.0f;
1086 dc->w.xformWorld2Wnd.eM22 = 1.0f;
1087 dc->w.xformWorld2Wnd.eDx = 0.0f;
1088 dc->w.xformWorld2Wnd.eDy = 0.0f;
1089 break;
1090 case MWT_LEFTMULTIPLY:
1091 CombineTransform( &dc->w.xformWorld2Wnd, xform,
1092 &dc->w.xformWorld2Wnd );
1093 break;
1094 case MWT_RIGHTMULTIPLY:
1095 CombineTransform( &dc->w.xformWorld2Wnd, &dc->w.xformWorld2Wnd,
1096 xform );
1097 break;
1098 default:
1099 return FALSE;
1100 }
1101
1102 DC_UpdateXforms( dc );
1103
1104 return TRUE;
1105 }
1106
1107
1108 /****************************************************************************
1109 * CombineTransform [GDI32.20]
1110 * Combines two transformation matrices.
1111 *
1112 * PARAMS
1113 * xformResult [O] Stores the result of combining the two matrices
1114 * xform1 [I] Specifies the first matrix to apply
1115 * xform2 [I] Specifies the second matrix to apply
1116 *
1117 * REMARKS
1118 * The same matrix can be passed in for more than one of the parameters.
1119 *
1120 * RETURNS STD
1121 */
1122 BOOL32 WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1123 const XFORM *xform2 )
1124 {
1125 XFORM xformTemp;
1126
1127 /* Check for illegal parameters */
1128 if (!xformResult || !xform1 || !xform2)
1129 return FALSE;
1130
1131 /* Create the result in a temporary XFORM, since xformResult may be
1132 * equal to xform1 or xform2 */
1133 xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1134 xform1->eM12 * xform2->eM21;
1135 xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1136 xform1->eM12 * xform2->eM22;
1137 xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1138 xform1->eM22 * xform2->eM21;
1139 xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1140 xform1->eM22 * xform2->eM22;
1141 xformTemp.eDx = xform1->eDx * xform2->eM11 +
1142 xform1->eDy * xform2->eM21 +
1143 xform2->eDx;
1144 xformTemp.eDy = xform1->eDx * xform2->eM12 +
1145 xform1->eDy * xform2->eM22 +
1146 xform2->eDy;
1147
1148 /* Copy the result to xformResult */
1149 *xformResult = xformTemp;
1150
1151 return TRUE;
1152 }
1153
1154
1155 /***********************************************************************
1156 * SetDCHook (GDI.190)
1157 */
1158 BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1159 {
1160 DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1161
1162 TRACE(dc, "hookProc %08x, default is %08x\n",
1163 (UINT32)hookProc, (UINT32)DCHook );
1164
1165 if (!dc) return FALSE;
1166 dc->hookProc = hookProc;
1167 dc->dwHookData = dwHookData;
1168 GDI_HEAP_UNLOCK( hdc );
1169 return TRUE;
1170 }
1171
1172
1173 /***********************************************************************
1174 * GetDCHook (GDI.191)
1175 */
1176 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1177 {
1178 DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1179 if (!dc) return 0;
1180 *phookProc = dc->hookProc;
1181 GDI_HEAP_UNLOCK( hdc );
1182 return dc->dwHookData;
1183 }
1184
1185
1186 /***********************************************************************
1187 * SetHookFlags (GDI.192)
1188 */
1189 WORD WINAPI SetHookFlags(HDC16 hDC, WORD flags)
1190 {
1191 DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
1192
1193 if( dc )
1194 {
1195 WORD wRet = dc->w.flags & DC_DIRTY;
1196
1197 /* "Undocumented Windows" info is slightly confusing.
1198 */
1199
1200 TRACE(dc,"hDC %04x, flags %04x\n",hDC,flags);
1201
1202 if( flags & DCHF_INVALIDATEVISRGN )
1203 dc->w.flags |= DC_DIRTY;
1204 else if( flags & DCHF_VALIDATEVISRGN || !flags )
1205 dc->w.flags &= ~DC_DIRTY;
1206 GDI_HEAP_UNLOCK( hDC );
1207 return wRet;
1208 }
1209 return 0;
1210 }
1211
1212 /***********************************************************************
1213 * SetICMMode (GDI32.318)
1214 */
1215 INT32 WINAPI SetICMMode(HDC32 hdc, INT32 iEnableICM)
1216 {
1217 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1218 if (iEnableICM == ICM_OFF) return ICM_OFF;
1219 if (iEnableICM == ICM_ON) return 0;
1220 if (iEnableICM == ICM_QUERY) return ICM_OFF;
1221 return 0;
1222 }
1223
1224
1225 /***********************************************************************
1226 * GetColorSpace (GDI32.165)
1227 */
1228 HCOLORSPACE32 WINAPI GetColorSpace(HDC32 hdc)
1229 {
1230 /*FIXME Need to to whatever GetColorSpace actually does */
1231 return 0;
1232 }
1233
1234 /***********************************************************************
1235 * GetBoundsRect16 (GDI.194)
1236 */
1237 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1238 {
1239 return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1240 }
1241
1242 /***********************************************************************
1243 * GetBoundsRect32 (GDI32.147)
1244 */
1245 UINT32 WINAPI GetBoundsRect32(HDC32 hdc, LPRECT32 rect, UINT32 flags)
1246 {
1247 FIXME(dc, "(): stub\n");
1248 return DCB_RESET; /* bounding rectangle always empty */
1249 }
1250
1251 /***********************************************************************
1252 * SetBoundsRect16 (GDI.193)
1253 */
1254 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1255 {
1256 if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1257 FIXME( dc, "(%04x, %p, %04x): stub\n", hdc, rect, flags );
1258
1259 return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1260 }
1261
1262 /***********************************************************************
1263 * SetBoundsRect32 (GDI32.307)
1264 */
1265 UINT32 WINAPI SetBoundsRect32(HDC32 hdc, const RECT32* rect, UINT32 flags)
1266 {
1267 FIXME(dc, "(): stub\n");
1268 return DCB_DISABLE; /* bounding rectangle always empty */
1269 }
1270
Maarten's multimedia branch