dlls/gdi/gdi_private.h

   1 /*
   2  * GDI definitions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   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 #ifndef __WINE_GDI_PRIVATE_H
  22 #define __WINE_GDI_PRIVATE_H
  23
  24 /* Metafile defines */
  25 #define META_EOF 0x0000
  26 /* values of mtType in METAHEADER.  Note however that the disk image of a disk
  27    based metafile has mtType == 1 */
  28 #define METAFILE_MEMORY 1
  29 #define METAFILE_DISK   2
  30 #define MFHEADERSIZE (sizeof(METAHEADER))
  31 #define MFVERSION 0x300
  32
  33 typedef struct {
  34     EMR   emr;
  35     INT   nBreakExtra;
  36     INT   nBreakCount;
  37 } EMRSETTEXTJUSTIFICATION, *PEMRSETTEXTJUSTIFICATION;
  38
  39 /* extra stock object: default 1x1 bitmap for memory DCs */
  40 #define DEFAULT_BITMAP (STOCK_LAST+1)
  41
  42 struct gdi_obj_funcs
  43 {
  44     HGDIOBJ (*pSelectObject)( HGDIOBJ handle, void *obj, HDC hdc );
  45     INT     (*pGetObject16)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  46     INT     (*pGetObjectA)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  47     INT     (*pGetObjectW)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  48     BOOL    (*pUnrealizeObject)( HGDIOBJ handle, void *obj );
  49     BOOL    (*pDeleteObject)( HGDIOBJ handle, void *obj );
  50 };
  51
  52 struct hdc_list
  53 {
  54     HDC hdc;
  55     struct hdc_list *next;
  56 };
  57
  58 /* Device functions for the Wine driver interface */
  59
  60 typedef struct { int opaque; } *PHYSDEV;  /* PHYSDEV is an opaque pointer */
  61
  62 typedef struct tagDC_FUNCS
  63 {
  64     INT      (*pAbortDoc)(PHYSDEV);
  65     BOOL     (*pAbortPath)(PHYSDEV);
  66     BOOL     (*pAlphaBlend)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,BLENDFUNCTION);
  67     BOOL     (*pAngleArc)(PHYSDEV,INT,INT,DWORD,FLOAT,FLOAT);
  68     BOOL     (*pArc)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
  69     BOOL     (*pArcTo)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
  70     BOOL     (*pBeginPath)(PHYSDEV);
  71     BOOL     (*pBitBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,DWORD);
  72     INT      (*pChoosePixelFormat)(PHYSDEV,const PIXELFORMATDESCRIPTOR *);
  73     BOOL     (*pChord)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
  74     BOOL     (*pCloseFigure)(PHYSDEV);
  75     BOOL     (*pCreateBitmap)(PHYSDEV,HBITMAP,LPVOID);
  76     BOOL     (*pCreateDC)(HDC,PHYSDEV *,LPCWSTR,LPCWSTR,LPCWSTR,const DEVMODEW*);
  77     HBITMAP  (*pCreateDIBSection)(PHYSDEV,HBITMAP,const BITMAPINFO *,UINT);
  78     BOOL     (*pDeleteBitmap)(HBITMAP);
  79     BOOL     (*pDeleteDC)(PHYSDEV);
  80     BOOL     (*pDeleteObject)(PHYSDEV,HGDIOBJ);
  81     INT      (*pDescribePixelFormat)(PHYSDEV,INT,UINT,PIXELFORMATDESCRIPTOR *);
  82     DWORD    (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
  83     BOOL     (*pEllipse)(PHYSDEV,INT,INT,INT,INT);
  84     INT      (*pEndDoc)(PHYSDEV);
  85     INT      (*pEndPage)(PHYSDEV);
  86     BOOL     (*pEndPath)(PHYSDEV);
  87     BOOL     (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,FONTENUMPROCW,LPARAM);
  88     INT      (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
  89     INT      (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
  90     INT      (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
  91     BOOL     (*pExtFloodFill)(PHYSDEV,INT,INT,COLORREF,UINT);
  92     INT      (*pExtSelectClipRgn)(PHYSDEV,HRGN,INT);
  93     BOOL     (*pExtTextOut)(PHYSDEV,INT,INT,UINT,const RECT*,LPCWSTR,UINT,const INT*);
  94     BOOL     (*pFillPath)(PHYSDEV);
  95     BOOL     (*pFillRgn)(PHYSDEV,HRGN,HBRUSH);
  96     BOOL     (*pFlattenPath)(PHYSDEV);
  97     BOOL     (*pFrameRgn)(PHYSDEV,HRGN,HBRUSH,INT,INT);
  98     BOOL     (*pGdiComment)(PHYSDEV,UINT,CONST BYTE*);
  99     LONG     (*pGetBitmapBits)(HBITMAP,void*,LONG);
 100     BOOL     (*pGetCharWidth)(PHYSDEV,UINT,UINT,LPINT);
 101     BOOL     (*pGetDCOrgEx)(PHYSDEV,LPPOINT);
 102     UINT     (*pGetDIBColorTable)(PHYSDEV,UINT,UINT,RGBQUAD*);
 103     INT      (*pGetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPVOID,BITMAPINFO*,UINT);
 104     INT      (*pGetDeviceCaps)(PHYSDEV,INT);
 105     BOOL     (*pGetDeviceGammaRamp)(PHYSDEV,LPVOID);
 106     COLORREF (*pGetNearestColor)(PHYSDEV,COLORREF);
 107     COLORREF (*pGetPixel)(PHYSDEV,INT,INT);
 108     INT      (*pGetPixelFormat)(PHYSDEV);
 109     UINT     (*pGetSystemPaletteEntries)(PHYSDEV,UINT,UINT,LPPALETTEENTRY);
 110     BOOL     (*pGetTextExtentExPoint)(PHYSDEV,LPCWSTR,INT,INT,LPINT,LPINT,LPSIZE);
 111     BOOL     (*pGetTextMetrics)(PHYSDEV,TEXTMETRICW*);
 112     INT      (*pIntersectClipRect)(PHYSDEV,INT,INT,INT,INT);
 113     BOOL     (*pInvertRgn)(PHYSDEV,HRGN);
 114     BOOL     (*pLineTo)(PHYSDEV,INT,INT);
 115     BOOL     (*pModifyWorldTransform)(PHYSDEV,const XFORM*,INT);
 116     BOOL     (*pMoveTo)(PHYSDEV,INT,INT);
 117     INT      (*pOffsetClipRgn)(PHYSDEV,INT,INT);
 118     INT      (*pOffsetViewportOrg)(PHYSDEV,INT,INT);
 119     INT      (*pOffsetWindowOrg)(PHYSDEV,INT,INT);
 120     BOOL     (*pPaintRgn)(PHYSDEV,HRGN);
 121     BOOL     (*pPatBlt)(PHYSDEV,INT,INT,INT,INT,DWORD);
 122     BOOL     (*pPie)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 123     BOOL     (*pPolyBezier)(PHYSDEV,const POINT*,DWORD);
 124     BOOL     (*pPolyBezierTo)(PHYSDEV,const POINT*,DWORD);
 125     BOOL     (*pPolyDraw)(PHYSDEV,const POINT*,const BYTE *,DWORD);
 126     BOOL     (*pPolyPolygon)(PHYSDEV,const POINT*,const INT*,UINT);
 127     BOOL     (*pPolyPolyline)(PHYSDEV,const POINT*,const DWORD*,DWORD);
 128     BOOL     (*pPolygon)(PHYSDEV,const POINT*,INT);
 129     BOOL     (*pPolyline)(PHYSDEV,const POINT*,INT);
 130     BOOL     (*pPolylineTo)(PHYSDEV,const POINT*,INT);
 131     UINT     (*pRealizeDefaultPalette)(PHYSDEV);
 132     UINT     (*pRealizePalette)(PHYSDEV,HPALETTE,BOOL);
 133     BOOL     (*pRectangle)(PHYSDEV,INT,INT,INT,INT);
 134     HDC      (*pResetDC)(PHYSDEV,const DEVMODEW*);
 135     BOOL     (*pRestoreDC)(PHYSDEV,INT);
 136     BOOL     (*pRoundRect)(PHYSDEV,INT,INT,INT,INT,INT,INT);
 137     INT      (*pSaveDC)(PHYSDEV);
 138     INT      (*pScaleViewportExt)(PHYSDEV,INT,INT,INT,INT);
 139     INT      (*pScaleWindowExt)(PHYSDEV,INT,INT,INT,INT);
 140     HBITMAP  (*pSelectBitmap)(PHYSDEV,HBITMAP);
 141     HBRUSH   (*pSelectBrush)(PHYSDEV,HBRUSH);
 142     BOOL     (*pSelectClipPath)(PHYSDEV,INT);
 143     HFONT    (*pSelectFont)(PHYSDEV,HFONT,HANDLE);
 144     HPALETTE (*pSelectPalette)(PHYSDEV,HPALETTE,BOOL);
 145     HPEN     (*pSelectPen)(PHYSDEV,HPEN);
 146     INT      (*pSetArcDirection)(PHYSDEV,INT);
 147     LONG     (*pSetBitmapBits)(HBITMAP,const void*,LONG);
 148     COLORREF (*pSetBkColor)(PHYSDEV,COLORREF);
 149     INT      (*pSetBkMode)(PHYSDEV,INT);
 150     COLORREF (*pSetDCBrushColor)(PHYSDEV, COLORREF);
 151     DWORD    (*pSetDCOrg)(PHYSDEV,INT,INT);
 152     COLORREF (*pSetDCPenColor)(PHYSDEV, COLORREF);
 153     UINT     (*pSetDIBColorTable)(PHYSDEV,UINT,UINT,const RGBQUAD*);
 154     INT      (*pSetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
 155     INT      (*pSetDIBitsToDevice)(PHYSDEV,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,LPCVOID,
 156                                    const BITMAPINFO*,UINT);
 157     VOID     (*pSetDeviceClipping)(PHYSDEV,HRGN,HRGN);
 158     BOOL     (*pSetDeviceGammaRamp)(PHYSDEV,LPVOID);
 159     INT      (*pSetMapMode)(PHYSDEV,INT);
 160     DWORD    (*pSetMapperFlags)(PHYSDEV,DWORD);
 161     COLORREF (*pSetPixel)(PHYSDEV,INT,INT,COLORREF);
 162     BOOL     (*pSetPixelFormat)(PHYSDEV,INT,const PIXELFORMATDESCRIPTOR *);
 163     INT      (*pSetPolyFillMode)(PHYSDEV,INT);
 164     INT      (*pSetROP2)(PHYSDEV,INT);
 165     INT      (*pSetRelAbs)(PHYSDEV,INT);
 166     INT      (*pSetStretchBltMode)(PHYSDEV,INT);
 167     UINT     (*pSetTextAlign)(PHYSDEV,UINT);
 168     INT      (*pSetTextCharacterExtra)(PHYSDEV,INT);
 169     DWORD    (*pSetTextColor)(PHYSDEV,DWORD);
 170     INT      (*pSetTextJustification)(PHYSDEV,INT,INT);
 171     INT      (*pSetViewportExt)(PHYSDEV,INT,INT);
 172     INT      (*pSetViewportOrg)(PHYSDEV,INT,INT);
 173     INT      (*pSetWindowExt)(PHYSDEV,INT,INT);
 174     INT      (*pSetWindowOrg)(PHYSDEV,INT,INT);
 175     BOOL     (*pSetWorldTransform)(PHYSDEV,const XFORM*);
 176     INT      (*pStartDoc)(PHYSDEV,const DOCINFOW*);
 177     INT      (*pStartPage)(PHYSDEV);
 178     BOOL     (*pStretchBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,DWORD);
 179     INT      (*pStretchDIBits)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT,const void *,
 180                                const BITMAPINFO*,UINT,DWORD);
 181     BOOL     (*pStrokeAndFillPath)(PHYSDEV);
 182     BOOL     (*pStrokePath)(PHYSDEV);
 183     BOOL     (*pSwapBuffers)(PHYSDEV);
 184     BOOL     (*pWidenPath)(PHYSDEV);
 185 } DC_FUNCTIONS;
 186
 187 /* It should not be necessary to access the contents of the GdiPath
 188  * structure directly; if you find that the exported functions don't
 189  * allow you to do what you want, then please place a new exported
 190  * function that does this job in path.c.
 191  */
 192 typedef enum tagGdiPathState
 193 {
 194    PATH_Null,
 195    PATH_Open,
 196    PATH_Closed
 197 } GdiPathState;
 198
 199 typedef struct tagGdiPath
 200 {
 201    GdiPathState state;
 202    POINT      *pPoints;
 203    BYTE         *pFlags;
 204    int          numEntriesUsed, numEntriesAllocated;
 205    BOOL       newStroke;
 206 } GdiPath;
 207
 208 typedef struct tagGdiFont *GdiFont;
 209
 210 struct saved_visrgn
 211 {
 212     struct saved_visrgn *next;
 213     HRGN                 hrgn;
 214 };
 215
 216 typedef struct tagDC
 217 {
 218     GDIOBJHDR    header;
 219     HDC          hSelf;            /* Handle to this DC */
 220     const struct tagDC_FUNCS *funcs; /* DC function table */
 221     PHYSDEV      physDev;         /* Physical device (driver-specific) */
 222     INT          saveLevel;
 223     HDC          saved_dc;
 224     DWORD        dwHookData;
 225     FARPROC16    hookProc;         /* the original SEGPTR ... */
 226     DCHOOKPROC   hookThunk;        /* ... and the thunk to call it */
 227
 228     INT          wndOrgX;          /* Window origin */
 229     INT          wndOrgY;
 230     INT          wndExtX;          /* Window extent */
 231     INT          wndExtY;
 232     INT          vportOrgX;        /* Viewport origin */
 233     INT          vportOrgY;
 234     INT          vportExtX;        /* Viewport extent */
 235     INT          vportExtY;
 236     FLOAT        miterLimit;
 237
 238     int           flags;
 239     DWORD         layout;
 240     HRGN          hClipRgn;      /* Clip region (may be 0) */
 241     HRGN          hMetaRgn;      /* Meta region (may be 0) */
 242     HRGN          hMetaClipRgn;  /* Intersection of meta and clip regions (may be 0) */
 243     HRGN          hVisRgn;       /* Visible region (must never be 0) */
 244     HPEN          hPen;
 245     HBRUSH        hBrush;
 246     HFONT         hFont;
 247     HBITMAP       hBitmap;
 248     HANDLE        hDevice;
 249     HPALETTE      hPalette;
 250
 251     GdiFont       gdiFont;
 252     GdiPath       path;
 253
 254     WORD          ROPmode;
 255     WORD          polyFillMode;
 256     WORD          stretchBltMode;
 257     WORD          relAbsMode;
 258     WORD          backgroundMode;
 259     COLORREF      backgroundColor;
 260     COLORREF      textColor;
 261     COLORREF      dcBrushColor;
 262     COLORREF      dcPenColor;
 263     short         brushOrgX;
 264     short         brushOrgY;
 265
 266     WORD          textAlign;         /* Text alignment from SetTextAlign() */
 267     INT           charExtra;         /* Spacing from SetTextCharacterExtra() */
 268     INT           breakExtra;        /* breakTotalExtra / breakCount */
 269     INT           breakRem;          /* breakTotalExtra % breakCount */
 270     INT           MapMode;
 271     INT           GraphicsMode;      /* Graphics mode */
 272     ABORTPROC     pAbortProc;        /* AbortProc for Printing */
 273     ABORTPROC16   pAbortProc16;
 274     INT           CursPosX;          /* Current position */
 275     INT           CursPosY;
 276     INT           ArcDirection;
 277     XFORM         xformWorld2Wnd;    /* World-to-window transformation */
 278     XFORM         xformWorld2Vport;  /* World-to-viewport transformation */
 279     XFORM         xformVport2World;  /* Inverse of the above transformation */
 280     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
 281     RECT          BoundsRect;        /* Current bounding rect */
 282
 283     struct saved_visrgn *saved_visrgn;
 284 } DC;
 285
 286   /* DC flags */
 287 #define DC_SAVED         0x0002   /* It is a saved DC */
 288 #define DC_DIRTY         0x0004   /* hVisRgn has to be updated */
 289 #define DC_BOUNDS_ENABLE 0x0008   /* Bounding rectangle tracking is enabled */
 290 #define DC_BOUNDS_SET    0x0010   /* Bounding rectangle has been set */
 291
 292 /* Certain functions will do no further processing if the driver returns this.
 293    Used by mfdrv for example. */
 294 #define GDI_NO_MORE_WORK 2
 295
 296 /* Rounds a floating point number to integer. The world-to-viewport
 297  * transformation process is done in floating point internally. This function
 298  * is then used to round these coordinates to integer values.
 299  */
 300 static inline INT GDI_ROUND(FLOAT val)
 301 {
 302    return (int)floor(val + 0.5);
 303 }
 304
 305 /* bitmap object */
 306
 307 typedef struct tagBITMAPOBJ
 308 {
 309     GDIOBJHDR           header;
 310     BITMAP              bitmap;
 311     SIZE                size;   /* For SetBitmapDimension() */
 312     const DC_FUNCTIONS *funcs; /* DC function table */
 313     /* For device-independent bitmaps: */
 314     DIBSECTION         *dib;
 315     SEGPTR              segptr_bits;  /* segptr to DIB bits */
 316 } BITMAPOBJ;
 317
 318 /* bidi.c */
 319
 320 /* Wine_GCPW Flags */
 321 /* Directionality -
 322  * LOOSE means that the paragraph dir is only set if there is no strong character.
 323  * FORCE means override the characters in the paragraph.
 324  */
 325 #define WINE_GCPW_FORCE_LTR 0
 326 #define WINE_GCPW_FORCE_RTL 1
 327 #define WINE_GCPW_LOOSE_LTR 2
 328 #define WINE_GCPW_LOOSE_RTL 3
 329 #define WINE_GCPW_DIR_MASK 3
 330 extern BOOL BIDI_Reorder( LPCWSTR lpString, INT uCount, DWORD dwFlags, DWORD dwWineGCP_Flags,
 331                           LPWSTR lpOutString, INT uCountOut, UINT *lpOrder );
 332 extern BOOL BidiAvail;
 333
 334 /* bitmap.c */
 335 extern HBITMAP BITMAP_CopyBitmap( HBITMAP hbitmap );
 336 extern BOOL BITMAP_SetOwnerDC( HBITMAP hbitmap, DC *dc );
 337 extern INT BITMAP_GetWidthBytes( INT bmWidth, INT bpp );
 338
 339 /* clipping.c */
 340 extern void CLIPPING_UpdateGCRegion( DC * dc );
 341
 342 /* dc.c */
 343 extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic );
 344 extern DC * DC_GetDCUpdate( HDC hdc );
 345 extern DC * DC_GetDCPtr( HDC hdc );
 346 extern void DC_InitDC( DC * dc );
 347 extern void DC_UpdateXforms( DC * dc );
 348
 349 /* dib.c */
 350 extern int DIB_GetDIBWidthBytes( int width, int depth );
 351 extern int DIB_GetDIBImageBytes( int width, int height, int depth );
 352 extern int DIB_BitmapInfoSize( const BITMAPINFO * info, WORD coloruse );
 353
 354 /* driver.c */
 355 extern const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name );
 356 extern const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs );
 357 extern void DRIVER_release_driver( const DC_FUNCTIONS *funcs );
 358 extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size );
 359
 360 /* enhmetafile.c */
 361 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk );
 362
 363 /* freetype.c */
 364 extern INT WineEngAddFontResourceEx(LPCWSTR, DWORD, PVOID);
 365 extern GdiFont WineEngCreateFontInstance(DC*, HFONT);
 366 extern BOOL WineEngDestroyFontInstance(HFONT handle);
 367 extern DWORD WineEngEnumFonts(LPLOGFONTW, FONTENUMPROCW, LPARAM);
 368 extern BOOL WineEngGetCharABCWidths(GdiFont font, UINT firstChar,
 369                                     UINT lastChar, LPABC buffer);
 370 extern BOOL WineEngGetCharABCWidthsI(GdiFont font, UINT firstChar,
 371                                     UINT count, LPWORD pgi, LPABC buffer);
 372 extern BOOL WineEngGetCharWidth(GdiFont, UINT, UINT, LPINT);
 373 extern DWORD WineEngGetFontData(GdiFont, DWORD, DWORD, LPVOID, DWORD);
 374 extern DWORD WineEngGetGlyphIndices(GdiFont font, LPCWSTR lpstr, INT count,
 375                                     LPWORD pgi, DWORD flags);
 376 extern DWORD WineEngGetGlyphOutline(GdiFont, UINT glyph, UINT format,
 377                                     LPGLYPHMETRICS, DWORD buflen, LPVOID buf,
 378                                     const MAT2*);
 379 extern BOOL WineEngGetLinkedHFont(DC *dc, WCHAR c, HFONT *new_hfont, UINT *glyph);
 380 extern UINT WineEngGetOutlineTextMetrics(GdiFont, UINT, LPOUTLINETEXTMETRICW);
 381 extern UINT WineEngGetTextCharsetInfo(GdiFont font, LPFONTSIGNATURE fs, DWORD flags);
 382 extern BOOL WineEngGetTextExtentExPoint(GdiFont, LPCWSTR, INT, INT, LPINT, LPINT, LPSIZE);
 383 extern BOOL WineEngGetTextExtentPointI(GdiFont, const WORD *, INT, LPSIZE);
 384 extern INT  WineEngGetTextFace(GdiFont, INT, LPWSTR);
 385 extern BOOL WineEngGetTextMetrics(GdiFont, LPTEXTMETRICW);
 386 extern BOOL WineEngInit(void);
 387 extern BOOL WineEngRemoveFontResourceEx(LPCWSTR, DWORD, PVOID);
 388
 389 /* gdiobj.c */
 390 extern BOOL GDI_Init(void);
 391 extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ *, const struct gdi_obj_funcs *funcs );
 392 extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
 393 extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
 394 extern void GDI_CheckNotLock(void);
 395 extern BOOL GDI_hdc_using_object(HGDIOBJ obj, HDC hdc);
 396 extern BOOL GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc);
 397
 398 /* metafile.c */
 399 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh);
 400 extern HMETAFILE16 MF_Create_HMETAFILE16(METAHEADER *mh);
 401 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCVOID filename, BOOL unicode );
 402 extern METAHEADER *MF_ReadMetaFile(HANDLE hfile);
 403 extern METAHEADER *MF_LoadDiskBasedMetaFile(METAHEADER *mh);
 404 extern BOOL MF_PlayMetaFile( HDC hdc, METAHEADER *mh);
 405
 406 /* path.c */
 407
 408 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
 409 /* Returns TRUE if the specified path is in the open state, i.e. in the
 410  * state where points will be added to the path, or FALSE otherwise. This
 411  * function is implemented as a macro for performance reasons.
 412  */
 413
 414 extern void PATH_InitGdiPath(GdiPath *pPath);
 415 extern void PATH_DestroyGdiPath(GdiPath *pPath);
 416 extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest, const GdiPath *pPathSrc);
 417
 418 extern BOOL PATH_MoveTo(DC *dc);
 419 extern BOOL PATH_LineTo(DC *dc, INT x, INT y);
 420 extern BOOL PATH_Rectangle(DC *dc, INT x1, INT y1, INT x2, INT y2);
 421 extern BOOL PATH_ExtTextOut(DC *dc, INT x, INT y, UINT flags, const RECT *lprc,
 422                             LPCWSTR str, UINT count, const INT *dx);
 423 extern BOOL PATH_Ellipse(DC *dc, INT x1, INT y1, INT x2, INT y2);
 424 extern BOOL PATH_Arc(DC *dc, INT x1, INT y1, INT x2, INT y2,
 425                      INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
 426 extern BOOL PATH_PolyBezierTo(DC *dc, const POINT *pt, DWORD cbCount);
 427 extern BOOL PATH_PolyBezier(DC *dc, const POINT *pt, DWORD cbCount);
 428 extern BOOL PATH_PolylineTo(DC *dc, const POINT *pt, DWORD cbCount);
 429 extern BOOL PATH_Polyline(DC *dc, const POINT *pt, DWORD cbCount);
 430 extern BOOL PATH_Polygon(DC *dc, const POINT *pt, DWORD cbCount);
 431 extern BOOL PATH_PolyPolyline(DC *dc, const POINT *pt, const DWORD *counts, DWORD polylines);
 432 extern BOOL PATH_PolyPolygon(DC *dc, const POINT *pt, const INT *counts, UINT polygons);
 433 extern BOOL PATH_RoundRect(DC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width, INT ell_height);
 434 extern BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags);
 435
 436 /* painting.c */
 437 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
 438
 439 /* palette.c */
 440 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg);
 441 extern UINT WINAPI GDIRealizePalette( HDC hdc );
 442 extern HPALETTE PALETTE_Init(void);
 443
 444 /* region.c */
 445 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y );
 446
 447 /* Undocumented value for DIB's iUsage: Indicates a mono DIB w/o pal enties */
 448 #define DIB_PAL_MONO 2
 449 #endif /* __WINE_GDI_PRIVATE_H */
 450
 451 BOOL WINAPI FontIsLinked(HDC);