git.oblomov.eu Git - wine/blob - dlls/gdi/enhmfdrv/init.c

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <string.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "gdi.h"
  28 #include "enhmfdrv/enhmetafiledrv.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
  32
  33 static const DC_FUNCTIONS EMFDRV_Funcs =
  34 {
  35     NULL,                            /* pAbortDoc */
  36     EMFDRV_AbortPath,                /* pAbortPath */
  37     NULL,                            /* pAngleArc */
  38     EMFDRV_Arc,                      /* pArc */
  39     NULL,                            /* pArcTo */
  40     EMFDRV_BeginPath,                /* pBeginPath */
  41     EMFDRV_BitBlt,                   /* pBitBlt */
  42     NULL,                            /* pChoosePixelFormat */
  43     EMFDRV_Chord,                    /* pChord */
  44     EMFDRV_CloseFigure,              /* pCloseFigure */
  45     NULL,                            /* pCreateBitmap */
  46     NULL,                            /* pCreateDC */
  47     NULL,                            /* pCreateDIBSection */
  48     NULL,                            /* pDeleteBitmap */
  49     NULL,                            /* pDeleteDC */
  50     NULL,                            /* pDescribePixelFormat */
  51     NULL,                            /* pDeviceCapabilities */
  52     EMFDRV_Ellipse,                  /* pEllipse */
  53     NULL,                            /* pEndDoc */
  54     NULL,                            /* pEndPage */
  55     EMFDRV_EndPath,                  /* pEndPath */
  56     NULL,                            /* pEnumDeviceFonts */
  57     EMFDRV_ExcludeClipRect,          /* pExcludeClipRect */
  58     NULL,                            /* pExtDeviceMode */
  59     NULL,                            /* pExtEscape */
  60     EMFDRV_ExtFloodFill,             /* pExtFloodFill */
  61     EMFDRV_ExtSelectClipRgn,         /* pExtSelectClipRgn */
  62     EMFDRV_ExtTextOut,               /* pExtTextOut */
  63     EMFDRV_FillPath,                 /* pFillPath */
  64     EMFDRV_FillRgn,                  /* pFillRgn */
  65     EMFDRV_FlattenPath,              /* pFlattenPath */
  66     EMFDRV_FrameRgn,                 /* pFrameRgn */
  67     EMFDRV_GdiComment,               /* pGdiComment */
  68     NULL,                            /* pGetBitmapBits */
  69     NULL,                            /* pGetCharWidth */
  70     NULL,                            /* pGetDCOrgEx */
  71     NULL,                            /* pGetDIBColorTable */
  72     NULL,                            /* pGetDIBits */
  73     EMFDRV_GetDeviceCaps,            /* pGetDeviceCaps */
  74     NULL,                            /* pGetDeviceGammaRamp */
  75     NULL,                            /* pGetNearestColor */
  76     NULL,                            /* pGetPixel */
  77     NULL,                            /* pGetPixelFormat */
  78     NULL,                            /* pGetSystemPaletteEntries */
  79     NULL,                            /* pGetTextExtentPoint */
  80     NULL,                            /* pGetTextMetrics */
  81     EMFDRV_IntersectClipRect,        /* pIntersectClipRect */
  82     EMFDRV_InvertRgn,                /* pInvertRgn */
  83     EMFDRV_LineTo,                   /* pLineTo */
  84     EMFDRV_ModifyWorldTransform,     /* pModifyWorldTransform */
  85     EMFDRV_MoveTo,                   /* pMoveTo */
  86     EMFDRV_OffsetClipRgn,            /* pOffsetClipRgn */
  87     EMFDRV_OffsetViewportOrg,        /* pOffsetViewportOrg */
  88     EMFDRV_OffsetWindowOrg,          /* pOffsetWindowOrg */
  89     EMFDRV_PaintRgn,                 /* pPaintRgn */
  90     EMFDRV_PatBlt,                   /* pPatBlt */
  91     EMFDRV_Pie,                      /* pPie */
  92     NULL,                            /* pPolyBezier */
  93     NULL,                            /* pPolyBezierTo */
  94     NULL,                            /* pPolyDraw */
  95     EMFDRV_PolyPolygon,              /* pPolyPolygon */
  96     EMFDRV_PolyPolyline,             /* pPolyPolyline */
  97     EMFDRV_Polygon,                  /* pPolygon */
  98     EMFDRV_Polyline,                 /* pPolyline */
  99     NULL,                            /* pPolylineTo */
 100     NULL,                            /* pRealizeDefaultPalette */
 101     NULL,                            /* pRealizePalette */
 102     EMFDRV_Rectangle,                /* pRectangle */
 103     NULL,                            /* pResetDC */
 104     EMFDRV_RestoreDC,                /* pRestoreDC */
 105     EMFDRV_RoundRect,                /* pRoundRect */
 106     EMFDRV_SaveDC,                   /* pSaveDC */
 107     EMFDRV_ScaleViewportExt,         /* pScaleViewportExt */
 108     EMFDRV_ScaleWindowExt,           /* pScaleWindowExt */
 109     EMFDRV_SelectBitmap,             /* pSelectBitmap */
 110     EMFDRV_SelectBrush,              /* pSelectBrush */
 111     EMFDRV_SelectClipPath,           /* pSelectClipPath */
 112     EMFDRV_SelectFont,               /* pSelectFont */
 113     NULL,                            /* pSelectPalette */
 114     EMFDRV_SelectPen,                /* pSelectPen */
 115     EMFDRV_SetArcDirection,          /* pSetArcDirection */
 116     NULL,                            /* pSetBitmapBits */
 117     EMFDRV_SetBkColor,               /* pSetBkColor */
 118     EMFDRV_SetBkMode,                /* pSetBkMode */
 119     NULL,                            /* pSetDCBrushColor */
 120     NULL,                            /* pSetDCOrg */
 121     NULL,                            /* pSetDCPenColor */
 122     NULL,                            /* pSetDIBColorTable */
 123     NULL,                            /* pSetDIBits */
 124     EMFDRV_SetDIBitsToDevice,        /* pSetDIBitsToDevice */
 125     NULL,                            /* pSetDeviceClipping */
 126     NULL,                            /* pSetDeviceGammaRamp */
 127     EMFDRV_SetMapMode,               /* pSetMapMode */
 128     EMFDRV_SetMapperFlags,           /* pSetMapperFlags */
 129     NULL,                            /* pSetPixel */
 130     NULL,                            /* pSetPixelFormat */
 131     EMFDRV_SetPolyFillMode,          /* pSetPolyFillMode */
 132     EMFDRV_SetROP2,                  /* pSetROP2 */
 133     NULL,                            /* pSetRelAbs */
 134     EMFDRV_SetStretchBltMode,        /* pSetStretchBltMode */
 135     EMFDRV_SetTextAlign,             /* pSetTextAlign */
 136     NULL,                            /* pSetTextCharacterExtra */
 137     EMFDRV_SetTextColor,             /* pSetTextColor */
 138     EMFDRV_SetTextJustification,     /* pSetTextJustification */
 139     EMFDRV_SetViewportExt,           /* pSetViewportExt */
 140     EMFDRV_SetViewportOrg,           /* pSetViewportOrg */
 141     EMFDRV_SetWindowExt,             /* pSetWindowExt */
 142     EMFDRV_SetWindowOrg,             /* pSetWindowOrg */
 143     EMFDRV_SetWorldTransform,        /* pSetWorldTransform */
 144     NULL,                            /* pStartDoc */
 145     NULL,                            /* pStartPage */
 146     EMFDRV_StretchBlt,               /* pStretchBlt */
 147     EMFDRV_StretchDIBits,            /* pStretchDIBits */
 148     EMFDRV_StrokeAndFillPath,        /* pStrokeAndFillPath */
 149     EMFDRV_StrokePath,               /* pStrokePath */
 150     NULL,                            /* pSwapBuffers */
 151     EMFDRV_WidenPath                 /* pWidenPath */
 152 };
 153
 154
 155 /**********************************************************************
 156  *           EMFDRV_DeleteDC
 157  */
 158 static BOOL EMFDRV_DeleteDC( PHYSDEV dev )
 159 {
 160     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 161     DC *dc = physDev->dc;
 162
 163     if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
 164     HeapFree( GetProcessHeap(), 0, physDev );
 165     dc->physDev = NULL;
 166     GDI_FreeObject( dc->hSelf, dc );
 167     return TRUE;
 168 }
 169
 170
 171 /******************************************************************
 172  *         EMFDRV_WriteRecord
 173  *
 174  * Warning: this function can change the pointer to the metafile header.
 175  */
 176 BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
 177 {
 178     DWORD len;
 179     ENHMETAHEADER *emh;
 180     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 181
 182     physDev->emh->nBytes += emr->nSize;
 183     physDev->emh->nRecords++;
 184
 185     if(physDev->hFile) {
 186         TRACE("Writing record to disk\n");
 187         if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
 188             return FALSE;
 189     } else {
 190         DWORD nEmfSize = HeapSize(GetProcessHeap(), 0, physDev->emh);
 191         len = physDev->emh->nBytes;
 192         if (len > nEmfSize) {
 193             nEmfSize += (nEmfSize / 2) + emr->nSize;
 194             emh = HeapReAlloc(GetProcessHeap(), 0, physDev->emh, nEmfSize);
 195             if (!emh) return FALSE;
 196             physDev->emh = emh;
 197         }
 198         memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
 199                emr->nSize);
 200     }
 201     return TRUE;
 202 }
 203
 204
 205 /******************************************************************
 206  *         EMFDRV_UpdateBBox
 207  */
 208 void EMFDRV_UpdateBBox( PHYSDEV dev, RECTL *rect )
 209 {
 210     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 211     RECTL *bounds = &physDev->emh->rclBounds;
 212     RECTL vportRect = *rect;
 213
 214     LPtoDP(physDev->hdc, (LPPOINT)&vportRect, 2);
 215
 216     if(bounds->left > bounds->right) {/* first rect */
 217         *bounds = vportRect;
 218         return;
 219     }
 220     bounds->left   = min(bounds->left,   vportRect.left);
 221     bounds->top    = min(bounds->top,    vportRect.top);
 222     bounds->right  = max(bounds->right,  vportRect.right);
 223     bounds->bottom = max(bounds->bottom, vportRect.bottom);
 224     return;
 225 }
 226
 227 /******************************************************************
 228  *         EMFDRV_AddHandleDC
 229  *
 230  * Note: this function assumes that we never delete objects.
 231  * If we do someday, we'll need to maintain a table to re-use deleted
 232  * handles.
 233  */
 234 int EMFDRV_AddHandleDC( PHYSDEV dev )
 235 {
 236     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 237     physDev->emh->nHandles++;
 238     return physDev->nextHandle++;
 239 }
 240
 241
 242 /**********************************************************************
 243  *          CreateEnhMetaFileA   (GDI32.@)
 244  */
 245 HDC WINAPI CreateEnhMetaFileA(
 246     HDC hdc,           /* [in] optional reference DC */
 247     LPCSTR filename,   /* [in] optional filename for disk metafiles */
 248     const RECT *rect,  /* [in] optional bounding rectangle */
 249     LPCSTR description /* [in] optional description */
 250     )
 251 {
 252     LPWSTR filenameW = NULL;
 253     LPWSTR descriptionW = NULL;
 254     HDC hReturnDC;
 255     DWORD len1, len2, total;
 256
 257     if(filename)
 258     {
 259         total = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
 260         filenameW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 261         MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, total );
 262     }
 263     if(description) {
 264         len1 = strlen(description);
 265         len2 = strlen(description + len1 + 1);
 266         total = MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, NULL, 0 );
 267         descriptionW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 268         MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, descriptionW, total );
 269     }
 270
 271     hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
 272
 273     if(filenameW)
 274         HeapFree( GetProcessHeap(), 0, filenameW );
 275     if(descriptionW)
 276         HeapFree( GetProcessHeap(), 0, descriptionW );
 277
 278     return hReturnDC;
 279 }
 280
 281 /**********************************************************************
 282  *          CreateEnhMetaFileW   (GDI32.@)
 283  */
 284 HDC WINAPI CreateEnhMetaFileW(
 285     HDC           hdc,        /* [in] optional reference DC */
 286     LPCWSTR       filename,   /* [in] optional filename for disk metafiles */
 287     const RECT*   rect,       /* [in] optional bounding rectangle */
 288     LPCWSTR       description /* [in] optional description */
 289     )
 290 {
 291     static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
 292     HDC ret;
 293     DC *dc;
 294     HDC hRefDC = hdc ? hdc : CreateDCW(displayW,NULL,NULL,NULL);
 295         /* If no ref, use current display */
 296     EMFDRV_PDEVICE *physDev;
 297     HANDLE hFile;
 298     DWORD size = 0, length = 0;
 299
 300     TRACE("%s\n", debugstr_w(filename) );
 301
 302     if (!(dc = DC_AllocDC( &EMFDRV_Funcs, ENHMETAFILE_DC_MAGIC ))) return 0;
 303
 304     physDev = (EMFDRV_PDEVICE *)HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
 305     if (!physDev) {
 306         GDI_FreeObject( dc->hSelf, dc );
 307         return 0;
 308     }
 309     dc->physDev = (PHYSDEV)physDev;
 310     physDev->hdc = dc->hSelf;
 311     physDev->dc = dc;
 312
 313     if(description) { /* App name\0Title\0\0 */
 314         length = lstrlenW(description);
 315         length += lstrlenW(description + length + 1);
 316         length += 3;
 317         length *= 2;
 318     }
 319     size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
 320
 321     if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
 322         HeapFree( GetProcessHeap(), 0, physDev );
 323         GDI_FreeObject( dc->hSelf, dc );
 324         return 0;
 325     }
 326
 327     physDev->nextHandle = 1;
 328     physDev->hFile = 0;
 329
 330     physDev->horzres = GetDeviceCaps(hRefDC, HORZRES);
 331     physDev->vertres = GetDeviceCaps(hRefDC, VERTRES);
 332     physDev->logpixelsx = GetDeviceCaps(hRefDC, LOGPIXELSX);
 333     physDev->logpixelsy = GetDeviceCaps(hRefDC, LOGPIXELSY);
 334     physDev->horzsize = GetDeviceCaps(hRefDC, HORZSIZE);
 335     physDev->vertsize = GetDeviceCaps(hRefDC, VERTSIZE);
 336     physDev->bitspixel = GetDeviceCaps(hRefDC, BITSPIXEL);
 337     physDev->textcaps = GetDeviceCaps(hRefDC, TEXTCAPS);
 338     physDev->rastercaps = GetDeviceCaps(hRefDC, RASTERCAPS);
 339     physDev->technology = GetDeviceCaps(hRefDC, TECHNOLOGY);
 340     physDev->planes = GetDeviceCaps(hRefDC, PLANES);
 341
 342     physDev->emh->iType = EMR_HEADER;
 343     physDev->emh->nSize = size;
 344
 345     physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
 346     physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
 347
 348     if(rect) {
 349         physDev->emh->rclFrame.left   = rect->left;
 350         physDev->emh->rclFrame.top    = rect->top;
 351         physDev->emh->rclFrame.right  = rect->right;
 352         physDev->emh->rclFrame.bottom = rect->bottom;
 353     } else {  /* Set this to {0,0 - -1,-1} and update it at the end */
 354         physDev->emh->rclFrame.left = physDev->emh->rclFrame.top = 0;
 355         physDev->emh->rclFrame.right = physDev->emh->rclFrame.bottom = -1;
 356     }
 357
 358     physDev->emh->dSignature = ENHMETA_SIGNATURE;
 359     physDev->emh->nVersion = 0x10000;
 360     physDev->emh->nBytes = physDev->emh->nSize;
 361     physDev->emh->nRecords = 1;
 362     physDev->emh->nHandles = 1;
 363
 364     physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
 365     physDev->emh->nDescription = length / 2;
 366
 367     physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
 368
 369     physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
 370
 371     /* Size in pixels */
 372     physDev->emh->szlDevice.cx = physDev->horzres;
 373     physDev->emh->szlDevice.cy = physDev->vertres;
 374
 375     /* Size in millimeters */
 376     physDev->emh->szlMillimeters.cx = physDev->horzsize;
 377     physDev->emh->szlMillimeters.cy = physDev->vertsize;
 378
 379     /* Size in micrometers */
 380     physDev->emh->szlMicrometers.cx = physDev->horzsize * 1000;
 381     physDev->emh->szlMicrometers.cy = physDev->vertsize * 1000;
 382
 383     memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
 384
 385     if (filename)  /* disk based metafile */
 386     {
 387         if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
 388                                  NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
 389             EMFDRV_DeleteDC( dc->physDev );
 390             return 0;
 391         }
 392         if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
 393             EMFDRV_DeleteDC( dc->physDev );
 394             return 0;
 395         }
 396         physDev->hFile = hFile;
 397     }
 398
 399     TRACE("returning %p\n", dc->hSelf);
 400     ret = dc->hSelf;
 401     GDI_ReleaseObj( dc->hSelf );
 402
 403     if( !hdc )
 404       DeleteDC( hRefDC );
 405
 406     return ret;
 407 }
 408
 409 /******************************************************************
 410  *             CloseEnhMetaFile (GDI32.@)
 411  */
 412 HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
 413 {
 414     HENHMETAFILE hmf;
 415     EMFDRV_PDEVICE *physDev;
 416     DC *dc;
 417     EMREOF emr;
 418     HANDLE hMapping = 0;
 419
 420     TRACE("(%p)\n", hdc );
 421
 422     if (!(dc = (DC *) GDI_GetObjPtr( hdc, ENHMETAFILE_DC_MAGIC ))) return 0;
 423     physDev = (EMFDRV_PDEVICE *)dc->physDev;
 424
 425     emr.emr.iType = EMR_EOF;
 426     emr.emr.nSize = sizeof(emr);
 427     emr.nPalEntries = 0;
 428     emr.offPalEntries = 0;
 429     emr.nSizeLast = emr.emr.nSize;
 430     EMFDRV_WriteRecord( dc->physDev, &emr.emr );
 431
 432     /* Update rclFrame if not initialized in CreateEnhMetaFile */
 433     if(physDev->emh->rclFrame.left > physDev->emh->rclFrame.right) {
 434         physDev->emh->rclFrame.left = physDev->emh->rclBounds.left *
 435           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 436         physDev->emh->rclFrame.top = physDev->emh->rclBounds.top *
 437           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 438         physDev->emh->rclFrame.right = physDev->emh->rclBounds.right *
 439           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 440         physDev->emh->rclFrame.bottom = physDev->emh->rclBounds.bottom *
 441           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 442     }
 443
 444     if (physDev->hFile)  /* disk based metafile */
 445     {
 446         if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
 447         {
 448             CloseHandle( physDev->hFile );
 449             EMFDRV_DeleteDC( dc->physDev );
 450             return 0;
 451         }
 452
 453         if (!WriteFile(physDev->hFile, (LPSTR)physDev->emh,
 454                        sizeof(*physDev->emh), NULL, NULL))
 455         {
 456             CloseHandle( physDev->hFile );
 457             EMFDRV_DeleteDC( dc->physDev );
 458             return 0;
 459         }
 460         HeapFree( GetProcessHeap(), 0, physDev->emh );
 461         hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
 462                                       0, NULL);
 463         TRACE("hMapping = %p\n", hMapping );
 464         physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
 465         TRACE("view = %p\n", physDev->emh );
 466         CloseHandle( hMapping );
 467         CloseHandle( physDev->hFile );
 468     }
 469
 470     hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
 471     physDev->emh = NULL;  /* So it won't be deleted */
 472     EMFDRV_DeleteDC( dc->physDev );
 473     return hmf;
 474 }