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gdi32: Don't hold the gdi lock while creating a DC.
[wine/multimedia.git] / dlls / gdi32 / enhmfdrv / init.c
blob0db9ff6db5feba7905164ebcf716f59475e290fa
1 /*
2 * Enhanced MetaFile driver initialisation functions
3 *
4 * Copyright 1999 Huw D M Davies
5 *
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.
10 *
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.
15 *
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include <assert.h>
22 #include <stdarg.h>
23 #include <string.h>
24
25 #include "windef.h"
26 #include "winbase.h"
27 #include "wingdi.h"
28 #include "gdi_private.h"
29 #include "enhmfdrv/enhmetafiledrv.h"
30 #include "wine/debug.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
33
34 static const DC_FUNCTIONS EMFDRV_Funcs =
35 {
36 NULL, /* pAbortDoc */
37 EMFDRV_AbortPath, /* pAbortPath */
38 NULL, /* pAlphaBlend */
39 NULL, /* pAngleArc */
40 EMFDRV_Arc, /* pArc */
41 NULL, /* pArcTo */
42 EMFDRV_BeginPath, /* pBeginPath */
43 EMFDRV_BitBlt, /* pBitBlt */
44 NULL, /* pChoosePixelFormat */
45 EMFDRV_Chord, /* pChord */
46 EMFDRV_CloseFigure, /* pCloseFigure */
47 NULL, /* pCreateBitmap */
48 NULL, /* pCreateDC */
49 NULL, /* pCreateDIBSection */
50 NULL, /* pDeleteBitmap */
51 NULL, /* pDeleteDC */
52 EMFDRV_DeleteObject, /* pDeleteObject */
53 NULL, /* pDescribePixelFormat */
54 NULL, /* pDeviceCapabilities */
55 EMFDRV_Ellipse, /* pEllipse */
56 NULL, /* pEndDoc */
57 NULL, /* pEndPage */
58 EMFDRV_EndPath, /* pEndPath */
59 NULL, /* pEnumDeviceFonts */
60 EMFDRV_ExcludeClipRect, /* pExcludeClipRect */
61 NULL, /* pExtDeviceMode */
62 NULL, /* pExtEscape */
63 EMFDRV_ExtFloodFill, /* pExtFloodFill */
64 EMFDRV_ExtSelectClipRgn, /* pExtSelectClipRgn */
65 EMFDRV_ExtTextOut, /* pExtTextOut */
66 EMFDRV_FillPath, /* pFillPath */
67 EMFDRV_FillRgn, /* pFillRgn */
68 EMFDRV_FlattenPath, /* pFlattenPath */
69 EMFDRV_FrameRgn, /* pFrameRgn */
70 EMFDRV_GdiComment, /* pGdiComment */
71 NULL, /* pGetBitmapBits */
72 NULL, /* pGetCharWidth */
73 NULL, /* pGetDCOrgEx */
74 NULL, /* pGetDIBColorTable */
75 NULL, /* pGetDIBits */
76 EMFDRV_GetDeviceCaps, /* pGetDeviceCaps */
77 NULL, /* pGetDeviceGammaRamp */
78 NULL, /* pGetNearestColor */
79 NULL, /* pGetPixel */
80 NULL, /* pGetPixelFormat */
81 NULL, /* pGetSystemPaletteEntries */
82 NULL, /* pGetTextExtentExPoint */
83 NULL, /* pGetTextMetrics */
84 EMFDRV_IntersectClipRect, /* pIntersectClipRect */
85 EMFDRV_InvertRgn, /* pInvertRgn */
86 EMFDRV_LineTo, /* pLineTo */
87 EMFDRV_ModifyWorldTransform, /* pModifyWorldTransform */
88 EMFDRV_MoveTo, /* pMoveTo */
89 EMFDRV_OffsetClipRgn, /* pOffsetClipRgn */
90 EMFDRV_OffsetViewportOrg, /* pOffsetViewportOrg */
91 EMFDRV_OffsetWindowOrg, /* pOffsetWindowOrg */
92 EMFDRV_PaintRgn, /* pPaintRgn */
93 EMFDRV_PatBlt, /* pPatBlt */
94 EMFDRV_Pie, /* pPie */
95 NULL, /* pPolyBezier */
96 NULL, /* pPolyBezierTo */
97 NULL, /* pPolyDraw */
98 EMFDRV_PolyPolygon, /* pPolyPolygon */
99 EMFDRV_PolyPolyline, /* pPolyPolyline */
100 EMFDRV_Polygon, /* pPolygon */
101 EMFDRV_Polyline, /* pPolyline */
102 NULL, /* pPolylineTo */
103 NULL, /* pRealizeDefaultPalette */
104 NULL, /* pRealizePalette */
105 EMFDRV_Rectangle, /* pRectangle */
106 NULL, /* pResetDC */
107 EMFDRV_RestoreDC, /* pRestoreDC */
108 EMFDRV_RoundRect, /* pRoundRect */
109 EMFDRV_SaveDC, /* pSaveDC */
110 EMFDRV_ScaleViewportExt, /* pScaleViewportExt */
111 EMFDRV_ScaleWindowExt, /* pScaleWindowExt */
112 EMFDRV_SelectBitmap, /* pSelectBitmap */
113 EMFDRV_SelectBrush, /* pSelectBrush */
114 EMFDRV_SelectClipPath, /* pSelectClipPath */
115 EMFDRV_SelectFont, /* pSelectFont */
116 NULL, /* pSelectPalette */
117 EMFDRV_SelectPen, /* pSelectPen */
118 EMFDRV_SetArcDirection, /* pSetArcDirection */
119 NULL, /* pSetBitmapBits */
120 EMFDRV_SetBkColor, /* pSetBkColor */
121 EMFDRV_SetBkMode, /* pSetBkMode */
122 NULL, /* pSetDCBrushColor */
123 NULL, /* pSetDCOrg */
124 NULL, /* pSetDCPenColor */
125 NULL, /* pSetDIBColorTable */
126 NULL, /* pSetDIBits */
127 EMFDRV_SetDIBitsToDevice, /* pSetDIBitsToDevice */
128 NULL, /* pSetDeviceClipping */
129 NULL, /* pSetDeviceGammaRamp */
130 EMFDRV_SetMapMode, /* pSetMapMode */
131 EMFDRV_SetMapperFlags, /* pSetMapperFlags */
132 NULL, /* pSetPixel */
133 NULL, /* pSetPixelFormat */
134 EMFDRV_SetPolyFillMode, /* pSetPolyFillMode */
135 EMFDRV_SetROP2, /* pSetROP2 */
136 NULL, /* pSetRelAbs */
137 EMFDRV_SetStretchBltMode, /* pSetStretchBltMode */
138 EMFDRV_SetTextAlign, /* pSetTextAlign */
139 NULL, /* pSetTextCharacterExtra */
140 EMFDRV_SetTextColor, /* pSetTextColor */
141 EMFDRV_SetTextJustification, /* pSetTextJustification */
142 EMFDRV_SetViewportExt, /* pSetViewportExt */
143 EMFDRV_SetViewportOrg, /* pSetViewportOrg */
144 EMFDRV_SetWindowExt, /* pSetWindowExt */
145 EMFDRV_SetWindowOrg, /* pSetWindowOrg */
146 EMFDRV_SetWorldTransform, /* pSetWorldTransform */
147 NULL, /* pStartDoc */
148 NULL, /* pStartPage */
149 EMFDRV_StretchBlt, /* pStretchBlt */
150 EMFDRV_StretchDIBits, /* pStretchDIBits */
151 EMFDRV_StrokeAndFillPath, /* pStrokeAndFillPath */
152 EMFDRV_StrokePath, /* pStrokePath */
153 NULL, /* pSwapBuffers */
154 NULL, /* pUnrealizePalette */
155 EMFDRV_WidenPath /* pWidenPath */
156 };
157
158
159 /**********************************************************************
160 * EMFDRV_DeleteDC
161 */
162 static BOOL EMFDRV_DeleteDC( DC *dc )
163 {
164 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev;
165 UINT index;
166
167 if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
168 for(index = 0; index < physDev->handles_size; index++)
169 if(physDev->handles[index])
170 GDI_hdc_not_using_object(physDev->handles[index], physDev->hdc);
171 HeapFree( GetProcessHeap(), 0, physDev->handles );
172 HeapFree( GetProcessHeap(), 0, physDev );
173 dc->physDev = NULL;
174 free_dc_ptr( dc );
175 return TRUE;
176 }
177
178
179 /******************************************************************
180 * EMFDRV_WriteRecord
181 *
182 * Warning: this function can change the pointer to the metafile header.
183 */
184 BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
185 {
186 DWORD len;
187 ENHMETAHEADER *emh;
188 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
189
190 TRACE("record %d, size %d %s\n",
191 emr->iType, emr->nSize, physDev->hFile ? "(to disk)" : "");
192
193 assert( !(emr->nSize & 3) );
194
195 physDev->emh->nBytes += emr->nSize;
196 physDev->emh->nRecords++;
197
198 if(physDev->hFile) {
199 if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
200 return FALSE;
201 } else {
202 DWORD nEmfSize = HeapSize(GetProcessHeap(), 0, physDev->emh);
203 len = physDev->emh->nBytes;
204 if (len > nEmfSize) {
205 nEmfSize += (nEmfSize / 2) + emr->nSize;
206 emh = HeapReAlloc(GetProcessHeap(), 0, physDev->emh, nEmfSize);
207 if (!emh) return FALSE;
208 physDev->emh = emh;
209 }
210 memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
211 emr->nSize);
212 }
213 return TRUE;
214 }
215
216
217 /******************************************************************
218 * EMFDRV_UpdateBBox
219 */
220 void EMFDRV_UpdateBBox( PHYSDEV dev, RECTL *rect )
221 {
222 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
223 RECTL *bounds = &physDev->emh->rclBounds;
224 RECTL vportRect = *rect;
225
226 LPtoDP(physDev->hdc, (LPPOINT)&vportRect, 2);
227
228 /* The coordinate systems may be mirrored
229 (LPtoDP handles points, not rectangles) */
230 if (vportRect.left > vportRect.right)
231 {
232 LONG temp = vportRect.right;
233 vportRect.right = vportRect.left;
234 vportRect.left = temp;
235 }
236 if (vportRect.top > vportRect.bottom)
237 {
238 LONG temp = vportRect.bottom;
239 vportRect.bottom = vportRect.top;
240 vportRect.top = temp;
241 }
242
243 if (bounds->left > bounds->right)
244 {
245 /* first bounding rectangle */
246 *bounds = vportRect;
247 }
248 else
249 {
250 bounds->left = min(bounds->left, vportRect.left);
251 bounds->top = min(bounds->top, vportRect.top);
252 bounds->right = max(bounds->right, vportRect.right);
253 bounds->bottom = max(bounds->bottom, vportRect.bottom);
254 }
255 }
256
257 /**********************************************************************
258 * CreateEnhMetaFileA (GDI32.@)
259 */
260 HDC WINAPI CreateEnhMetaFileA(
261 HDC hdc, /* [in] optional reference DC */
262 LPCSTR filename, /* [in] optional filename for disk metafiles */
263 const RECT *rect, /* [in] optional bounding rectangle */
264 LPCSTR description /* [in] optional description */
265 )
266 {
267 LPWSTR filenameW = NULL;
268 LPWSTR descriptionW = NULL;
269 HDC hReturnDC;
270 DWORD len1, len2, total;
271
272 if(filename)
273 {
274 total = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
275 filenameW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
276 MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, total );
277 }
278 if(description) {
279 len1 = strlen(description);
280 len2 = strlen(description + len1 + 1);
281 total = MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, NULL, 0 );
282 descriptionW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
283 MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, descriptionW, total );
284 }
285
286 hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
287
288 if(filenameW)
289 HeapFree( GetProcessHeap(), 0, filenameW );
290 if(descriptionW)
291 HeapFree( GetProcessHeap(), 0, descriptionW );
292
293 return hReturnDC;
294 }
295
296 /**********************************************************************
297 * CreateEnhMetaFileW (GDI32.@)
298 */
299 HDC WINAPI CreateEnhMetaFileW(
300 HDC hdc, /* [in] optional reference DC */
301 LPCWSTR filename, /* [in] optional filename for disk metafiles */
302 const RECT* rect, /* [in] optional bounding rectangle */
303 LPCWSTR description /* [in] optional description */
304 )
305 {
306 static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
307 HDC ret;
308 DC *dc;
309 HDC hRefDC = hdc ? hdc : CreateDCW(displayW,NULL,NULL,NULL);
310 /* If no ref, use current display */
311 EMFDRV_PDEVICE *physDev;
312 HANDLE hFile;
313 DWORD size = 0, length = 0;
314
315 TRACE("%s\n", debugstr_w(filename) );
316
317 if (!(dc = alloc_dc_ptr( &EMFDRV_Funcs, ENHMETAFILE_DC_MAGIC ))) return 0;
318
319 physDev = HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
320 if (!physDev) {
321 free_dc_ptr( dc );
322 return 0;
323 }
324 dc->physDev = (PHYSDEV)physDev;
325 physDev->hdc = dc->hSelf;
326
327 if(description) { /* App name\0Title\0\0 */
328 length = lstrlenW(description);
329 length += lstrlenW(description + length + 1);
330 length += 3;
331 length *= 2;
332 }
333 size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
334
335 if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
336 HeapFree( GetProcessHeap(), 0, physDev );
337 free_dc_ptr( dc );
338 return 0;
339 }
340
341 physDev->handles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, HANDLE_LIST_INC * sizeof(physDev->handles[0]));
342 physDev->handles_size = HANDLE_LIST_INC;
343 physDev->cur_handles = 1;
344 physDev->hFile = 0;
345
346 physDev->horzres = GetDeviceCaps(hRefDC, HORZRES);
347 physDev->vertres = GetDeviceCaps(hRefDC, VERTRES);
348 physDev->logpixelsx = GetDeviceCaps(hRefDC, LOGPIXELSX);
349 physDev->logpixelsy = GetDeviceCaps(hRefDC, LOGPIXELSY);
350 physDev->horzsize = GetDeviceCaps(hRefDC, HORZSIZE);
351 physDev->vertsize = GetDeviceCaps(hRefDC, VERTSIZE);
352 physDev->bitspixel = GetDeviceCaps(hRefDC, BITSPIXEL);
353 physDev->textcaps = GetDeviceCaps(hRefDC, TEXTCAPS);
354 physDev->rastercaps = GetDeviceCaps(hRefDC, RASTERCAPS);
355 physDev->technology = GetDeviceCaps(hRefDC, TECHNOLOGY);
356 physDev->planes = GetDeviceCaps(hRefDC, PLANES);
357 physDev->numcolors = GetDeviceCaps(hRefDC, NUMCOLORS);
358
359 physDev->emh->iType = EMR_HEADER;
360 physDev->emh->nSize = size;
361
362 physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
363 physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
364
365 if(rect) {
366 physDev->emh->rclFrame.left = rect->left;
367 physDev->emh->rclFrame.top = rect->top;
368 physDev->emh->rclFrame.right = rect->right;
369 physDev->emh->rclFrame.bottom = rect->bottom;
370 } else { /* Set this to {0,0 - -1,-1} and update it at the end */
371 physDev->emh->rclFrame.left = physDev->emh->rclFrame.top = 0;
372 physDev->emh->rclFrame.right = physDev->emh->rclFrame.bottom = -1;
373 }
374
375 physDev->emh->dSignature = ENHMETA_SIGNATURE;
376 physDev->emh->nVersion = 0x10000;
377 physDev->emh->nBytes = physDev->emh->nSize;
378 physDev->emh->nRecords = 1;
379 physDev->emh->nHandles = 1;
380
381 physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
382 physDev->emh->nDescription = length / 2;
383
384 physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
385
386 physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
387
388 /* Size in pixels */
389 physDev->emh->szlDevice.cx = physDev->horzres;
390 physDev->emh->szlDevice.cy = physDev->vertres;
391
392 /* Size in millimeters */
393 physDev->emh->szlMillimeters.cx = physDev->horzsize;
394 physDev->emh->szlMillimeters.cy = physDev->vertsize;
395
396 /* Size in micrometers */
397 physDev->emh->szlMicrometers.cx = physDev->horzsize * 1000;
398 physDev->emh->szlMicrometers.cy = physDev->vertsize * 1000;
399
400 memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
401
402 if (filename) /* disk based metafile */
403 {
404 if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
405 NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
406 EMFDRV_DeleteDC( dc );
407 return 0;
408 }
409 if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
410 EMFDRV_DeleteDC( dc );
411 return 0;
412 }
413 physDev->hFile = hFile;
414 }
415
416 TRACE("returning %p\n", dc->hSelf);
417 ret = dc->hSelf;
418 release_dc_ptr( dc );
419
420 if( !hdc )
421 DeleteDC( hRefDC );
422
423 return ret;
424 }
425
426 /******************************************************************
427 * CloseEnhMetaFile (GDI32.@)
428 */
429 HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
430 {
431 HENHMETAFILE hmf;
432 EMFDRV_PDEVICE *physDev;
433 DC *dc;
434 EMREOF emr;
435 HANDLE hMapping = 0;
436
437 TRACE("(%p)\n", hdc );
438
439 if (!(dc = get_dc_ptr( hdc ))) return NULL;
440 if (GDIMAGIC(dc->header.wMagic) != ENHMETAFILE_DC_MAGIC)
441 {
442 release_dc_ptr( dc );
443 return NULL;
444 }
445 if (dc->refcount != 1)
446 {
447 FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
448 release_dc_ptr( dc );
449 return NULL;
450 }
451 physDev = (EMFDRV_PDEVICE *)dc->physDev;
452
453 if(dc->saveLevel)
454 RestoreDC(hdc, 1);
455
456 emr.emr.iType = EMR_EOF;
457 emr.emr.nSize = sizeof(emr);
458 emr.nPalEntries = 0;
459 emr.offPalEntries = 0;
460 emr.nSizeLast = emr.emr.nSize;
461 EMFDRV_WriteRecord( dc->physDev, &emr.emr );
462
463 /* Update rclFrame if not initialized in CreateEnhMetaFile */
464 if(physDev->emh->rclFrame.left > physDev->emh->rclFrame.right) {
465 physDev->emh->rclFrame.left = physDev->emh->rclBounds.left *
466 physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
467 physDev->emh->rclFrame.top = physDev->emh->rclBounds.top *
468 physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
469 physDev->emh->rclFrame.right = physDev->emh->rclBounds.right *
470 physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
471 physDev->emh->rclFrame.bottom = physDev->emh->rclBounds.bottom *
472 physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
473 }
474
475 if (physDev->hFile) /* disk based metafile */
476 {
477 if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
478 {
479 CloseHandle( physDev->hFile );
480 EMFDRV_DeleteDC( dc );
481 return 0;
482 }
483
484 if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh,
485 sizeof(*physDev->emh), NULL, NULL))
486 {
487 CloseHandle( physDev->hFile );
488 EMFDRV_DeleteDC( dc );
489 return 0;
490 }
491 HeapFree( GetProcessHeap(), 0, physDev->emh );
492 hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
493 0, NULL);
494 TRACE("hMapping = %p\n", hMapping );
495 physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
496 TRACE("view = %p\n", physDev->emh );
497 CloseHandle( hMapping );
498 CloseHandle( physDev->hFile );
499 }
500
501 hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
502 physDev->emh = NULL; /* So it won't be deleted */
503 EMFDRV_DeleteDC( dc );
504 return hmf;
505 }
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