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Moved SystemHeap allocations to the process heap.
[wine.git] / graphics / enhmetafiledrv / init.c
blob4fce766a3ca0a0cd4cc6a4cde2fa1038d4a5e469
1 /*
2 * Enhanced MetaFile driver initialisation functions
3 *
4 * Copyright 1999 Huw D M Davies
5 */
6
7 #include "windef.h"
8 #include "wingdi.h"
9 #include "dc.h"
10 #include "heap.h"
11 #include "global.h"
12 #include "enhmetafile.h"
13 #include "enhmetafiledrv.h"
14 #include "wine/winestring.h"
15 #include "debugtools.h"
16 #include "winuser.h"
17
18 #include <string.h>
19
20 DEFAULT_DEBUG_CHANNEL(enhmetafile)
21
22 static const DC_FUNCTIONS EMFDRV_Funcs =
23 {
24 NULL, /* pAbortDoc */
25 EMFDRV_AbortPath, /* pAbortPath */
26 NULL, /* pAngleArc */
27 EMFDRV_Arc, /* pArc */
28 NULL, /* pArcTo */
29 EMFDRV_BeginPath, /* pBeginPath */
30 NULL, /* pBitBlt */
31 NULL, /* pBitmapBits */
32 EMFDRV_Chord, /* pChord */
33 EMFDRV_CloseFigure, /* pCloseFigure */
34 NULL, /* pCreateBitmap */
35 NULL, /* no implementation */ /* pCreateDC */
36 NULL, /* pCreateDIBSection */
37 NULL, /* pCreateDIBSection16 */
38 NULL, /* no implementation */ /* pDeleteDC */
39 NULL, /* pDeleteObject */
40 NULL, /* pDeviceCapabilities */
41 EMFDRV_Ellipse, /* pEllipse */
42 NULL, /* pEndDoc */
43 NULL, /* pEndPage */
44 EMFDRV_EndPath, /* pEndPath */
45 NULL, /* pEnumDeviceFonts */
46 NULL, /* pEscape */
47 EMFDRV_ExcludeClipRect, /* pExcludeClipRect */
48 NULL, /* pExtDeviceMode */
49 EMFDRV_ExtFloodFill, /* pExtFloodFill */
50 NULL, /* pExtTextOut */
51 EMFDRV_FillPath, /* pFillPath */
52 EMFDRV_FillRgn, /* pFillRgn */
53 EMFDRV_FlattenPath, /* pFlattenPath */
54 EMFDRV_FrameRgn, /* pFrameRgn */
55 NULL, /* pGetCharWidth */
56 NULL, /* no implementation */ /* pGetPixel */
57 NULL, /* pGetTextExtentPoint */
58 NULL, /* pGetTextMetrics */
59 EMFDRV_IntersectClipRect, /* pIntersectClipRect */
60 EMFDRV_InvertRgn, /* pInvertRgn */
61 EMFDRV_LineTo, /* pLineTo */
62 NULL, /* pLoadOEMResource */
63 EMFDRV_MoveToEx, /* pMoveToEx */
64 EMFDRV_OffsetClipRgn, /* pOffsetClipRgn */
65 NULL, /* pOffsetViewportOrg */
66 NULL, /* pOffsetWindowOrg */
67 EMFDRV_PaintRgn, /* pPaintRgn */
68 NULL, /* pPatBlt */
69 EMFDRV_Pie, /* pPie */
70 NULL, /* pPolyBezier */
71 NULL, /* pPolyBezierTo */
72 NULL, /* pPolyDraw */
73 EMFDRV_PolyPolygon, /* pPolyPolygon */
74 EMFDRV_PolyPolyline, /* pPolyPolyline */
75 EMFDRV_Polygon, /* pPolygon */
76 EMFDRV_Polyline, /* pPolyline */
77 NULL, /* pPolylineTo */
78 NULL, /* pRealizePalette */
79 EMFDRV_Rectangle, /* pRectangle */
80 EMFDRV_RestoreDC, /* pRestoreDC */
81 EMFDRV_RoundRect, /* pRoundRect */
82 EMFDRV_SaveDC, /* pSaveDC */
83 EMFDRV_ScaleViewportExt, /* pScaleViewportExt */
84 EMFDRV_ScaleWindowExt, /* pScaleWindowExt */
85 EMFDRV_SelectClipPath, /* pSelectClipPath */
86 NULL, /* pSelectClipRgn */
87 EMFDRV_SelectObject, /* pSelectObject */
88 NULL, /* pSelectPalette */
89 EMFDRV_SetBkColor, /* pSetBkColor */
90 EMFDRV_SetBkMode, /* pSetBkMode */
91 NULL, /* pSetDeviceClipping */
92 NULL, /* pSetDIBitsToDevice */
93 EMFDRV_SetMapMode, /* pSetMapMode */
94 EMFDRV_SetMapperFlags, /* pSetMapperFlags */
95 NULL, /* pSetPixel */
96 EMFDRV_SetPolyFillMode, /* pSetPolyFillMode */
97 EMFDRV_SetROP2, /* pSetROP2 */
98 NULL, /* pSetRelAbs */
99 EMFDRV_SetStretchBltMode, /* pSetStretchBltMode */
100 EMFDRV_SetTextAlign, /* pSetTextAlign */
101 NULL, /* pSetTextCharacterExtra */
102 EMFDRV_SetTextColor, /* pSetTextColor */
103 NULL, /* pSetTextJustification */
104 EMFDRV_SetViewportExt, /* pSetViewportExt */
105 EMFDRV_SetViewportOrg, /* pSetViewportOrg */
106 EMFDRV_SetWindowExt, /* pSetWindowExt */
107 EMFDRV_SetWindowOrg, /* pSetWindowOrg */
108 NULL, /* pStartDoc */
109 NULL, /* pStartPage */
110 NULL, /* pStretchBlt */
111 NULL, /* pStretchDIBits */
112 EMFDRV_StrokeAndFillPath, /* pStrokeAndFillPath */
113 EMFDRV_StrokePath, /* pStrokePath */
114 EMFDRV_WidenPath /* pWiddenPath */
115 };
116
117
118 /**********************************************************************
119 * EMFDRV_DeleteDC
120 */
121 static BOOL EMFDRV_DeleteDC( DC *dc )
122 {
123 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev;
124
125 if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
126 HeapFree( GetProcessHeap(), 0, physDev );
127 dc->physDev = NULL;
128 GDI_FreeObject(dc->hSelf);
129 return TRUE;
130 }
131
132
133 /******************************************************************
134 * EMFDRV_WriteRecord
135 *
136 * Warning: this function can change the pointer to the metafile header.
137 */
138 BOOL EMFDRV_WriteRecord( DC *dc, EMR *emr )
139 {
140 DWORD len;
141 ENHMETAHEADER *emh;
142 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev;
143
144 physDev->emh->nBytes += emr->nSize;
145 physDev->emh->nRecords++;
146
147 if(physDev->hFile) {
148 TRACE("Writing record to disk\n");
149 if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
150 return FALSE;
151 } else {
152 len = physDev->emh->nBytes;
153 emh = HeapReAlloc( GetProcessHeap(), 0, physDev->emh, len );
154 if (!emh) return FALSE;
155 physDev->emh = emh;
156 memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
157 emr->nSize);
158 }
159 return TRUE;
160 }
161
162
163 /******************************************************************
164 * EMFDRV_UpdateBBox
165 */
166 void EMFDRV_UpdateBBox( DC *dc, RECTL *rect )
167 {
168 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev;
169 RECTL *bounds = &physDev->emh->rclBounds;
170
171 if(bounds->left > bounds->right) {/* first rect */
172 *bounds = *rect;
173 return;
174 }
175 bounds->left = MIN(bounds->left, rect->left);
176 bounds->top = MIN(bounds->top, rect->top);
177 bounds->right = MAX(bounds->right, rect->right);
178 bounds->bottom = MAX(bounds->bottom, rect->bottom);
179 return;
180 }
181
182 /******************************************************************
183 * EMFDRV_AddHandleDC
184 *
185 * Note: this function assumes that we never delete objects.
186 * If we do someday, we'll need to maintain a table to re-use deleted
187 * handles.
188 */
189 int EMFDRV_AddHandleDC( DC *dc )
190 {
191 EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev;
192 physDev->emh->nHandles++;
193 return physDev->nextHandle++;
194 }
195
196
197 /**********************************************************************
198 * CreateEnhMetaFileA (GDI32.41)
199 */
200 HDC WINAPI CreateEnhMetaFileA(
201 HDC hdc, /* optional reference DC */
202 LPCSTR filename, /* optional filename for disk metafiles */
203 const RECT *rect, /* optional bounding rectangle */
204 LPCSTR description /* optional description */
205 )
206 {
207 LPWSTR filenameW = NULL;
208 LPWSTR descriptionW = NULL;
209 HDC hReturnDC;
210 DWORD len1, len2;
211
212 if(filename)
213 filenameW = HEAP_strdupAtoW( GetProcessHeap(), 0, filename );
214
215 if(description) {
216 len1 = strlen(description);
217 len2 = strlen(description + len1 + 1);
218 descriptionW = HeapAlloc( GetProcessHeap(), 0, (len1 + len2 + 3) * 2);
219 lstrcpyAtoW(descriptionW, description );
220 lstrcpyAtoW(descriptionW + len1 + 1 , description + len1 + 1);
221 *(descriptionW + len1 + len2 + 2) = 0;
222 }
223
224 hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
225
226 if(filenameW)
227 HeapFree( GetProcessHeap(), 0, filenameW );
228 if(descriptionW)
229 HeapFree( GetProcessHeap(), 0, descriptionW );
230
231 return hReturnDC;
232 }
233
234 /**********************************************************************
235 * CreateEnhMetaFileW (GDI32.42)
236 */
237 HDC WINAPI CreateEnhMetaFileW(
238 HDC hdc, /* optional reference DC */
239 LPCWSTR filename, /* optional filename for disk metafiles */
240 const RECT* rect, /* optional bounding rectangle */
241 LPCWSTR description /* optional description */
242 )
243 {
244 DC *dc;
245 HDC hRefDC = hdc ? hdc : GetDC(0); /* If no ref, use current display */
246 EMFDRV_PDEVICE *physDev;
247 HFILE hFile;
248 DWORD size = 0, length = 0;
249
250 TRACE("'%s'\n", debugstr_w(filename) );
251
252 if (!(dc = DC_AllocDC( &EMFDRV_Funcs ))) return 0;
253 dc->header.wMagic = ENHMETAFILE_DC_MAGIC;
254
255 physDev = (EMFDRV_PDEVICE *)HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
256 if (!physDev) {
257 GDI_HEAP_FREE( dc->hSelf );
258 return 0;
259 }
260 dc->physDev = physDev;
261
262 if(description) { /* App name\0Title\0\0 */
263 length = lstrlenW(description);
264 length += lstrlenW(description + length + 1);
265 length += 3;
266 length *= 2;
267 }
268 size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
269
270 if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
271 HeapFree( GetProcessHeap(), 0, physDev );
272 GDI_HEAP_FREE( dc->hSelf );
273 return 0;
274 }
275
276 physDev->nextHandle = 1;
277 physDev->hFile = 0;
278
279 physDev->emh->iType = EMR_HEADER;
280 physDev->emh->nSize = size;
281
282 physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
283 physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
284
285 physDev->emh->dSignature = ENHMETA_SIGNATURE;
286 physDev->emh->nVersion = 0x10000;
287 physDev->emh->nBytes = physDev->emh->nSize;
288 physDev->emh->nRecords = 1;
289 physDev->emh->nHandles = 1;
290
291 physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
292 physDev->emh->nDescription = length / 2;
293
294 physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
295
296 physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
297
298 /* Size in pixels */
299 physDev->emh->szlDevice.cx = GetDeviceCaps( hRefDC, HORZRES );
300 physDev->emh->szlDevice.cy = GetDeviceCaps( hRefDC, VERTRES );
301
302 /* Size in millimeters */
303 physDev->emh->szlMillimeters.cx = GetDeviceCaps( hRefDC, HORZSIZE );
304 physDev->emh->szlMillimeters.cy = GetDeviceCaps( hRefDC, VERTSIZE );
305
306 memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
307
308 if (filename) /* disk based metafile */
309 {
310 if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
311 NULL, CREATE_ALWAYS, 0, -1)) == HFILE_ERROR) {
312 EMFDRV_DeleteDC( dc );
313 return 0;
314 }
315 if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
316 EMFDRV_DeleteDC( dc );
317 return 0;
318 }
319 physDev->hFile = hFile;
320 }
321
322 if( !hdc )
323 ReleaseDC( 0, hRefDC );
324
325 TRACE("returning %04x\n", dc->hSelf);
326 return dc->hSelf;
327
328 }
329
330 /******************************************************************
331 * CloseEnhMetaFile
332 */
333 HENHMETAFILE WINAPI CloseEnhMetaFile( HDC hdc /* metafile DC */ )
334 {
335 HENHMETAFILE hmf;
336 EMFDRV_PDEVICE *physDev;
337 DC *dc;
338 EMREOF emr;
339 HANDLE hMapping = 0;
340
341 TRACE("(%04x)\n", hdc );
342
343 if (!(dc = (DC *) GDI_GetObjPtr( hdc, ENHMETAFILE_DC_MAGIC ))) return 0;
344 physDev = (EMFDRV_PDEVICE *)dc->physDev;
345
346 emr.emr.iType = EMR_EOF;
347 emr.emr.nSize = sizeof(emr);
348 emr.nPalEntries = 0;
349 emr.offPalEntries = 0;
350 emr.nSizeLast = emr.emr.nSize;
351 EMFDRV_WriteRecord( dc, &emr.emr );
352
353 if (physDev->hFile) /* disk based metafile */
354 {
355 if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0) {
356 EMFDRV_DeleteDC( dc );
357 return 0;
358 }
359
360 if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh,
361 sizeof(*physDev->emh), NULL, NULL)) {
362 EMFDRV_DeleteDC( dc );
363 return 0;
364 }
365 HeapFree( GetProcessHeap(), 0, physDev->emh );
366 hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
367 0, NULL);
368 TRACE("hMapping = %08x\n", hMapping );
369 physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
370 TRACE("view = %p\n", physDev->emh );
371 }
372
373
374 hmf = EMF_Create_HENHMETAFILE( physDev->emh, physDev->hFile, hMapping );
375 physDev->emh = NULL; /* So it won't be deleted */
376 EMFDRV_DeleteDC( dc );
377 return hmf;
378 }
379
380
Windows API implementation