include/gdi.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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __WINE_GDI_H
  22 #define __WINE_GDI_H
  23
  24 #include <stdarg.h>
  25 #include <windef.h>
  26 #include <winbase.h>
  27 #include <wingdi.h>
  28 #include <wine/wingdi16.h>
  29 #include <math.h>
  30
  31   /* GDI objects magic numbers */
  32 #define FIRST_MAGIC           0x4f47
  33 #define PEN_MAGIC             0x4f47
  34 #define BRUSH_MAGIC           0x4f48
  35 #define FONT_MAGIC            0x4f49
  36 #define PALETTE_MAGIC         0x4f4a
  37 #define BITMAP_MAGIC          0x4f4b
  38 #define REGION_MAGIC          0x4f4c
  39 #define DC_MAGIC              0x4f4d
  40 #define DISABLED_DC_MAGIC     0x4f4e
  41 #define META_DC_MAGIC         0x4f4f
  42 #define METAFILE_MAGIC        0x4f50
  43 #define METAFILE_DC_MAGIC     0x4f51
  44 #define ENHMETAFILE_MAGIC     0x4f52
  45 #define ENHMETAFILE_DC_MAGIC  0x4f53
  46 #define MEMORY_DC_MAGIC       0x4f54
  47 #define LAST_MAGIC            0x4f54
  48
  49 #define MAGIC_DONTCARE        0xffff
  50
  51 /* GDI constants for making objects private/system (naming undoc. !) */
  52 #define OBJECT_PRIVATE        0x2000
  53 #define OBJECT_NOSYSTEM       0x8000
  54
  55 #define GDIMAGIC(magic) ((magic) & ~(OBJECT_PRIVATE|OBJECT_NOSYSTEM))
  56
  57 struct gdi_obj_funcs
  58 {
  59     HGDIOBJ (*pSelectObject)( HGDIOBJ handle, void *obj, HDC hdc );
  60     INT     (*pGetObject16)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  61     INT     (*pGetObjectA)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  62     INT     (*pGetObjectW)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  63     BOOL    (*pUnrealizeObject)( HGDIOBJ handle, void *obj );
  64     BOOL    (*pDeleteObject)( HGDIOBJ handle, void *obj );
  65 };
  66
  67 typedef struct tagGDIOBJHDR
  68 {
  69     HANDLE16    hNext;
  70     WORD        wMagic;
  71     DWORD       dwCount;
  72     const struct gdi_obj_funcs *funcs;
  73 } GDIOBJHDR;
  74
  75
  76 /* It should not be necessary to access the contents of the GdiPath
  77  * structure directly; if you find that the exported functions don't
  78  * allow you to do what you want, then please place a new exported
  79  * function that does this job in path.c.
  80  */
  81 typedef enum tagGdiPathState
  82 {
  83    PATH_Null,
  84    PATH_Open,
  85    PATH_Closed
  86 } GdiPathState;
  87
  88 typedef struct tagGdiPath
  89 {
  90    GdiPathState state;
  91    POINT      *pPoints;
  92    BYTE         *pFlags;
  93    int          numEntriesUsed, numEntriesAllocated;
  94    BOOL       newStroke;
  95 } GdiPath;
  96
  97 typedef struct tagGdiFont *GdiFont;
  98
  99 typedef struct { int opaque; } *PHYSDEV;  /* PHYSDEV is an opaque pointer */
 100
 101 typedef struct tagDC
 102 {
 103     GDIOBJHDR    header;
 104     HDC          hSelf;            /* Handle to this DC */
 105     const struct tagDC_FUNCS *funcs; /* DC function table */
 106     PHYSDEV      physDev;         /* Physical device (driver-specific) */
 107     INT          saveLevel;
 108     DWORD        dwHookData;
 109     FARPROC16    hookProc;         /* the original SEGPTR ... */
 110     DCHOOKPROC   hookThunk;        /* ... and the thunk to call it */
 111
 112     INT          wndOrgX;          /* Window origin */
 113     INT          wndOrgY;
 114     INT          wndExtX;          /* Window extent */
 115     INT          wndExtY;
 116     INT          vportOrgX;        /* Viewport origin */
 117     INT          vportOrgY;
 118     INT          vportExtX;        /* Viewport extent */
 119     INT          vportExtY;
 120
 121     int           flags;
 122     HRGN          hClipRgn;     /* Clip region (may be 0) */
 123     HRGN          hVisRgn;      /* Visible region (must never be 0) */
 124     HRGN          hGCClipRgn;   /* GC clip region (ClipRgn AND VisRgn) */
 125     HPEN          hPen;
 126     HBRUSH        hBrush;
 127     HFONT         hFont;
 128     HBITMAP       hBitmap;
 129     HANDLE        hDevice;
 130     HPALETTE      hPalette;
 131
 132     GdiFont       gdiFont;
 133     GdiPath       path;
 134
 135     WORD          ROPmode;
 136     WORD          polyFillMode;
 137     WORD          stretchBltMode;
 138     WORD          relAbsMode;
 139     WORD          backgroundMode;
 140     COLORREF      backgroundColor;
 141     COLORREF      textColor;
 142     short         brushOrgX;
 143     short         brushOrgY;
 144
 145     WORD          textAlign;         /* Text alignment from SetTextAlign() */
 146     short         charExtra;         /* Spacing from SetTextCharacterExtra() */
 147     short         breakTotalExtra;   /* Total extra space for justification */
 148     short         breakCount;        /* Break char. count */
 149     short         breakExtra;        /* breakTotalExtra / breakCount */
 150     short         breakRem;          /* breakTotalExtra % breakCount */
 151
 152     RECT          totalExtent;
 153     BYTE          bitsPerPixel;
 154
 155     INT           MapMode;
 156     INT           GraphicsMode;      /* Graphics mode */
 157     ABORTPROC     pAbortProc;        /* AbortProc for Printing */
 158     ABORTPROC16   pAbortProc16;
 159     INT           CursPosX;          /* Current position */
 160     INT           CursPosY;
 161     INT           ArcDirection;
 162     XFORM         xformWorld2Wnd;    /* World-to-window transformation */
 163     XFORM         xformWorld2Vport;  /* World-to-viewport transformation */
 164     XFORM         xformVport2World;  /* Inverse of the above transformation */
 165     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
 166 } DC;
 167
 168 /* Device functions for the Wine driver interface */
 169
 170 typedef INT (*DEVICEFONTENUMPROC)(LPENUMLOGFONTEXW,NEWTEXTMETRICEXW *,DWORD,
 171                                   LPARAM);
 172
 173 typedef struct tagDC_FUNCS
 174 {
 175     INT      (*pAbortDoc)(PHYSDEV);
 176     BOOL     (*pAbortPath)(PHYSDEV);
 177     BOOL     (*pAngleArc)(PHYSDEV,INT,INT,DWORD,FLOAT,FLOAT);
 178     BOOL     (*pArc)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 179     BOOL     (*pArcTo)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 180     BOOL     (*pBeginPath)(PHYSDEV);
 181     BOOL     (*pBitBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,DWORD);
 182     INT      (*pChoosePixelFormat)(PHYSDEV,const PIXELFORMATDESCRIPTOR *);
 183     BOOL     (*pChord)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 184     BOOL     (*pCloseFigure)(PHYSDEV);
 185     BOOL     (*pCreateBitmap)(PHYSDEV,HBITMAP);
 186     BOOL     (*pCreateDC)(DC *,PHYSDEV *,LPCWSTR,LPCWSTR,LPCWSTR,const DEVMODEW*);
 187     HBITMAP  (*pCreateDIBSection)(PHYSDEV,BITMAPINFO *,UINT,LPVOID *,HANDLE,DWORD,DWORD);
 188     BOOL     (*pDeleteBitmap)(HBITMAP);
 189     BOOL     (*pDeleteDC)(PHYSDEV);
 190     INT      (*pDescribePixelFormat)(PHYSDEV,INT,UINT,PIXELFORMATDESCRIPTOR *);
 191     DWORD    (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
 192     BOOL     (*pEllipse)(PHYSDEV,INT,INT,INT,INT);
 193     INT      (*pEndDoc)(PHYSDEV);
 194     INT      (*pEndPage)(PHYSDEV);
 195     BOOL     (*pEndPath)(PHYSDEV);
 196     BOOL     (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,DEVICEFONTENUMPROC,LPARAM);
 197     INT      (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
 198     INT      (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 199     INT      (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
 200     BOOL     (*pExtFloodFill)(PHYSDEV,INT,INT,COLORREF,UINT);
 201     INT      (*pExtSelectClipRgn)(PHYSDEV,HRGN,INT);
 202     BOOL     (*pExtTextOut)(PHYSDEV,INT,INT,UINT,const RECT*,LPCWSTR,UINT,const INT*);
 203     BOOL     (*pFillPath)(PHYSDEV);
 204     BOOL     (*pFillRgn)(PHYSDEV,HRGN,HBRUSH);
 205     BOOL     (*pFlattenPath)(PHYSDEV);
 206     BOOL     (*pFrameRgn)(PHYSDEV,HRGN,HBRUSH,INT,INT);
 207     BOOL     (*pGdiComment)(PHYSDEV,UINT,CONST BYTE*);
 208     LONG     (*pGetBitmapBits)(HBITMAP,void*,LONG);
 209     BOOL     (*pGetCharWidth)(PHYSDEV,UINT,UINT,LPINT);
 210     BOOL     (*pGetDCOrgEx)(PHYSDEV,LPPOINT);
 211     UINT     (*pGetDIBColorTable)(PHYSDEV,UINT,UINT,RGBQUAD*);
 212     INT      (*pGetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPVOID,BITMAPINFO*,UINT);
 213     INT      (*pGetDeviceCaps)(PHYSDEV,INT);
 214     BOOL     (*pGetDeviceGammaRamp)(PHYSDEV,LPVOID);
 215     COLORREF (*pGetNearestColor)(PHYSDEV,COLORREF);
 216     COLORREF (*pGetPixel)(PHYSDEV,INT,INT);
 217     INT      (*pGetPixelFormat)(PHYSDEV);
 218     UINT     (*pGetSystemPaletteEntries)(PHYSDEV,UINT,UINT,LPPALETTEENTRY);
 219     BOOL     (*pGetTextExtentPoint)(PHYSDEV,LPCWSTR,INT,LPSIZE);
 220     BOOL     (*pGetTextMetrics)(PHYSDEV,TEXTMETRICW*);
 221     INT      (*pIntersectClipRect)(PHYSDEV,INT,INT,INT,INT);
 222     BOOL     (*pInvertRgn)(PHYSDEV,HRGN);
 223     BOOL     (*pLineTo)(PHYSDEV,INT,INT);
 224     BOOL     (*pModifyWorldTransform)(PHYSDEV,const XFORM*,INT);
 225     BOOL     (*pMoveTo)(PHYSDEV,INT,INT);
 226     INT      (*pOffsetClipRgn)(PHYSDEV,INT,INT);
 227     INT      (*pOffsetViewportOrg)(PHYSDEV,INT,INT);
 228     INT      (*pOffsetWindowOrg)(PHYSDEV,INT,INT);
 229     BOOL     (*pPaintRgn)(PHYSDEV,HRGN);
 230     BOOL     (*pPatBlt)(PHYSDEV,INT,INT,INT,INT,DWORD);
 231     BOOL     (*pPie)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 232     BOOL     (*pPolyBezier)(PHYSDEV,const POINT*,DWORD);
 233     BOOL     (*pPolyBezierTo)(PHYSDEV,const POINT*,DWORD);
 234     BOOL     (*pPolyDraw)(PHYSDEV,const POINT*,const BYTE *,DWORD);
 235     BOOL     (*pPolyPolygon)(PHYSDEV,const POINT*,const INT*,UINT);
 236     BOOL     (*pPolyPolyline)(PHYSDEV,const POINT*,const DWORD*,DWORD);
 237     BOOL     (*pPolygon)(PHYSDEV,const POINT*,INT);
 238     BOOL     (*pPolyline)(PHYSDEV,const POINT*,INT);
 239     BOOL     (*pPolylineTo)(PHYSDEV,const POINT*,INT);
 240     UINT     (*pRealizeDefaultPalette)(PHYSDEV);
 241     UINT     (*pRealizePalette)(PHYSDEV,HPALETTE,BOOL);
 242     BOOL     (*pRectangle)(PHYSDEV,INT,INT,INT,INT);
 243     HDC      (*pResetDC)(PHYSDEV,const DEVMODEA*);
 244     BOOL     (*pRestoreDC)(PHYSDEV,INT);
 245     BOOL     (*pRoundRect)(PHYSDEV,INT,INT,INT,INT,INT,INT);
 246     INT      (*pSaveDC)(PHYSDEV);
 247     INT      (*pScaleViewportExt)(PHYSDEV,INT,INT,INT,INT);
 248     INT      (*pScaleWindowExt)(PHYSDEV,INT,INT,INT,INT);
 249     HBITMAP  (*pSelectBitmap)(PHYSDEV,HBITMAP);
 250     HBRUSH   (*pSelectBrush)(PHYSDEV,HBRUSH);
 251     BOOL     (*pSelectClipPath)(PHYSDEV,INT);
 252     HFONT    (*pSelectFont)(PHYSDEV,HFONT);
 253     HPALETTE (*pSelectPalette)(PHYSDEV,HPALETTE,BOOL);
 254     HPEN     (*pSelectPen)(PHYSDEV,HPEN);
 255     LONG     (*pSetBitmapBits)(HBITMAP,const void*,LONG);
 256     COLORREF (*pSetBkColor)(PHYSDEV,COLORREF);
 257     INT      (*pSetBkMode)(PHYSDEV,INT);
 258     DWORD    (*pSetDCOrg)(PHYSDEV,INT,INT);
 259     UINT     (*pSetDIBColorTable)(PHYSDEV,UINT,UINT,const RGBQUAD*);
 260     INT      (*pSetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
 261     INT      (*pSetDIBitsToDevice)(PHYSDEV,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,LPCVOID,
 262                                    const BITMAPINFO*,UINT);
 263     VOID     (*pSetDeviceClipping)(PHYSDEV,HRGN);
 264     BOOL     (*pSetDeviceGammaRamp)(PHYSDEV,LPVOID);
 265     INT      (*pSetMapMode)(PHYSDEV,INT);
 266     DWORD    (*pSetMapperFlags)(PHYSDEV,DWORD);
 267     COLORREF (*pSetPixel)(PHYSDEV,INT,INT,COLORREF);
 268     BOOL     (*pSetPixelFormat)(PHYSDEV,INT,const PIXELFORMATDESCRIPTOR *);
 269     INT      (*pSetPolyFillMode)(PHYSDEV,INT);
 270     INT      (*pSetROP2)(PHYSDEV,INT);
 271     INT      (*pSetRelAbs)(PHYSDEV,INT);
 272     INT      (*pSetStretchBltMode)(PHYSDEV,INT);
 273     UINT     (*pSetTextAlign)(PHYSDEV,UINT);
 274     INT      (*pSetTextCharacterExtra)(PHYSDEV,INT);
 275     DWORD    (*pSetTextColor)(PHYSDEV,DWORD);
 276     INT      (*pSetTextJustification)(PHYSDEV,INT,INT);
 277     INT      (*pSetViewportExt)(PHYSDEV,INT,INT);
 278     INT      (*pSetViewportOrg)(PHYSDEV,INT,INT);
 279     INT      (*pSetWindowExt)(PHYSDEV,INT,INT);
 280     INT      (*pSetWindowOrg)(PHYSDEV,INT,INT);
 281     BOOL     (*pSetWorldTransform)(PHYSDEV,const XFORM*);
 282     INT      (*pStartDoc)(PHYSDEV,const DOCINFOA*);
 283     INT      (*pStartPage)(PHYSDEV);
 284     BOOL     (*pStretchBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,DWORD);
 285     INT      (*pStretchDIBits)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT,const void *,
 286                                const BITMAPINFO*,UINT,DWORD);
 287     BOOL     (*pStrokeAndFillPath)(PHYSDEV);
 288     BOOL     (*pStrokePath)(PHYSDEV);
 289     BOOL     (*pSwapBuffers)(PHYSDEV);
 290     BOOL     (*pWidenPath)(PHYSDEV);
 291 } DC_FUNCTIONS;
 292
 293 /* Certain functions will do no further processing if the driver returns this.
 294    Used by mfdrv for example. */
 295 #define GDI_NO_MORE_WORK 2
 296
 297   /* DC hook codes */
 298 #define DCHC_INVALIDVISRGN      0x0001
 299 #define DCHC_DELETEDC           0x0002
 300
 301 #define DCHF_INVALIDATEVISRGN   0x0001
 302 #define DCHF_VALIDATEVISRGN     0x0002
 303
 304   /* DC flags */
 305 #define DC_SAVED      0x0002   /* It is a saved DC */
 306 #define DC_DIRTY      0x0004   /* hVisRgn has to be updated */
 307 #define DC_THUNKHOOK  0x0008   /* DC hook is in the 16-bit code */
 308
 309 #define GDI_HEAP_SIZE 0xffe0
 310
 311 /* extra stock object: default 1x1 bitmap for memory DCs */
 312 #define DEFAULT_BITMAP (STOCK_LAST+1)
 313
 314 /* Metafile defines */
 315
 316 #define META_EOF 0x0000
 317 /* values of mtType in METAHEADER.  Note however that the disk image of a disk
 318    based metafile has mtType == 1 */
 319 #define METAFILE_MEMORY 1
 320 #define METAFILE_DISK   2
 321
 322 /* Rounds a floating point number to integer. The world-to-viewport
 323  * transformation process is done in floating point internally. This function
 324  * is then used to round these coordinates to integer values.
 325  */
 326 static inline INT WINE_UNUSED GDI_ROUND(FLOAT val)
 327 {
 328    return (int)floor(val + 0.5);
 329 }
 330
 331   /* World -> Device size conversion */
 332
 333 /* Performs a world-to-viewport transformation on the specified width (which
 334  * is in floating point format).
 335  */
 336 static inline void WINE_UNUSED INTERNAL_XWSTODS_FLOAT(DC *dc, FLOAT *width)
 337 {
 338     /* Perform the transformation */
 339     *width = *width * dc->xformWorld2Vport.eM11;
 340 }
 341
 342 /* Performs a world-to-viewport transformation on the specified width (which
 343  * is in integer format).
 344  */
 345 static inline INT WINE_UNUSED INTERNAL_XWSTODS(DC *dc, INT width)
 346 {
 347     FLOAT floatWidth;
 348
 349     /* Perform operation with floating point */
 350     floatWidth = (FLOAT)width;
 351     INTERNAL_XWSTODS_FLOAT(dc, &floatWidth);
 352
 353     /* Round to integers */
 354     return GDI_ROUND(floatWidth);
 355 }
 356
 357
 358 /* Performs a world-to-viewport transformation on the specified size (which
 359  * is in floating point format).
 360  */
 361 static inline void WINE_UNUSED INTERNAL_YWSTODS_FLOAT(DC *dc, FLOAT *height)
 362 {
 363     /* Perform the transformation */
 364     *height = *height * dc->xformWorld2Vport.eM22;
 365 }
 366
 367 /* Performs a world-to-viewport transformation on the specified size (which
 368  * is in integer format).
 369  */
 370 static inline INT WINE_UNUSED INTERNAL_YWSTODS(DC *dc, INT height)
 371 {
 372     FLOAT floatHeight;
 373
 374     /* Perform operation with floating point */
 375     floatHeight = (FLOAT)height;
 376     INTERNAL_YWSTODS_FLOAT(dc, &floatHeight);
 377
 378     /* Round to integers */
 379     return GDI_ROUND(floatHeight);
 380 }
 381
 382
 383   /* Device -> World size conversion */
 384
 385 /* Performs a device to world transformation on the specified width (which
 386  * is in floating point format).
 387  */
 388 static inline void INTERNAL_XDSTOWS_FLOAT(DC *dc, FLOAT *width)
 389 {
 390     /* Perform the transformation */
 391     *width = *width * dc->xformVport2World.eM11;
 392 }
 393
 394 /* Performs a device to world transformation on the specified width (which
 395  * is in integer format).
 396  */
 397 static inline INT INTERNAL_XDSTOWS(DC *dc, INT width)
 398 {
 399     FLOAT floatWidth;
 400
 401     /* Perform operation with floating point */
 402     floatWidth = (FLOAT)width;
 403     INTERNAL_XDSTOWS_FLOAT(dc, &floatWidth);
 404
 405     /* Round to integers */
 406     return GDI_ROUND(floatWidth);
 407 }
 408
 409
 410 /* Performs a device to world transformation on the specified size (which
 411  * is in floating point format).
 412  */
 413 static inline void INTERNAL_YDSTOWS_FLOAT(DC *dc, FLOAT *height)
 414 {
 415     /* Perform the transformation */
 416     *height = *height * dc->xformVport2World.eM22;
 417 }
 418
 419 /* Performs a device to world transformation on the specified size (which
 420  * is in integer format).
 421  */
 422 static inline INT INTERNAL_YDSTOWS(DC *dc, INT height)
 423 {
 424     FLOAT floatHeight;
 425
 426     /* Perform operation with floating point */
 427     floatHeight = (FLOAT)height;
 428     INTERNAL_YDSTOWS_FLOAT(dc, &floatHeight);
 429
 430     /* Round to integers */
 431     return GDI_ROUND(floatHeight);
 432 }
 433
 434
 435   /* Device <-> logical size conversion */
 436
 437 #define XDSTOLS(dc,x) \
 438     MulDiv((x), (dc)->wndExtX, (dc)->vportExtX)
 439 #define YDSTOLS(dc,y) \
 440     MulDiv((y), (dc)->wndExtY, (dc)->vportExtY)
 441 #define XLSTODS(dc,x) \
 442     MulDiv((x), (dc)->vportExtX, (dc)->wndExtX)
 443 #define YLSTODS(dc,y) \
 444     MulDiv((y), (dc)->vportExtY, (dc)->wndExtY)
 445
 446   /* GDI local heap */
 447
 448 extern BOOL GDI_Init(void);
 449 extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ *, const struct gdi_obj_funcs *funcs );
 450 extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
 451 extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
 452 extern void *GDI_GetObjPtr( HGDIOBJ, WORD );
 453 extern void GDI_ReleaseObj( HGDIOBJ );
 454 extern void GDI_CheckNotLock(void);
 455
 456 extern const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name );
 457 extern const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs );
 458 extern void DRIVER_release_driver( const DC_FUNCTIONS *funcs );
 459 extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size );
 460
 461 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
 462
 463 extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic );
 464 extern DC * DC_GetDCPtr( HDC hdc );
 465 extern DC * DC_GetDCUpdate( HDC hdc );
 466 extern void DC_InitDC( DC * dc );
 467 extern void DC_UpdateXforms( DC * dc );
 468
 469 /* bidi.c */
 470
 471 /* Wine_GCPW Flags */
 472 /* Directionality -
 473  * LOOSE means that the paragraph dir is only set if there is no strong character.
 474  * FORCE means override the characters in the paragraph.
 475  */
 476 #define WINE_GCPW_FORCE_LTR 0
 477 #define WINE_GCPW_FORCE_RTL 1
 478 #define WINE_GCPW_LOOSE_LTR 2
 479 #define WINE_GCPW_LOOSE_RTL 3
 480 #define WINE_GCPW_DIR_MASK 3
 481 extern BOOL BIDI_Reorder( LPCWSTR lpString, INT uCount, DWORD dwFlags, DWORD dwWineGCP_Flags,
 482                           LPWSTR lpOutString, INT uCountOut, UINT *lpOrder );
 483 extern BOOL BidiAvail;
 484
 485 /* clipping.c */
 486 extern void CLIPPING_UpdateGCRegion( DC * dc );
 487
 488 /* enhmetafile.c */
 489 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk );
 490
 491 /* freetype.c */
 492 extern INT WineEngAddFontResourceEx(LPCWSTR, DWORD, PVOID);
 493 extern GdiFont WineEngCreateFontInstance(DC*, HFONT);
 494 extern BOOL WineEngDestroyFontInstance(HFONT handle);
 495 extern DWORD WineEngEnumFonts(LPLOGFONTW, DEVICEFONTENUMPROC, LPARAM);
 496 extern BOOL WineEngGetCharWidth(GdiFont, UINT, UINT, LPINT);
 497 extern DWORD WineEngGetFontData(GdiFont, DWORD, DWORD, LPVOID, DWORD);
 498 extern DWORD WineEngGetGlyphIndices(GdiFont font, LPCWSTR lpstr, INT count,
 499                                     LPWORD pgi, DWORD flags);
 500 extern DWORD WineEngGetGlyphOutline(GdiFont, UINT glyph, UINT format,
 501                                     LPGLYPHMETRICS, DWORD buflen, LPVOID buf,
 502                                     const MAT2*);
 503 extern UINT WineEngGetOutlineTextMetrics(GdiFont, UINT, LPOUTLINETEXTMETRICW);
 504 extern UINT WineEngGetTextCharsetInfo(GdiFont font, LPFONTSIGNATURE fs, DWORD flags);
 505 extern BOOL WineEngGetTextExtentPoint(GdiFont, LPCWSTR, INT, LPSIZE);
 506 extern BOOL WineEngGetTextExtentPointI(GdiFont, const WORD *, INT, LPSIZE);
 507 extern INT  WineEngGetTextFace(GdiFont, INT, LPWSTR);
 508 extern BOOL WineEngGetTextMetrics(GdiFont, LPTEXTMETRICW);
 509 extern BOOL WineEngInit(void);
 510 extern BOOL WineEngRemoveFontResourceEx(LPCWSTR, DWORD, PVOID);
 511
 512 /* metafile.c */
 513 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh);
 514 extern HMETAFILE16 MF_Create_HMETAFILE16(METAHEADER *mh);
 515 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCSTR filename);
 516
 517 /* region.c */
 518 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y );
 519
 520 /* palette.c */
 521 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg);
 522 extern UINT WINAPI GDIRealizePalette( HDC hdc );
 523
 524 /* path.c */
 525
 526 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
 527 /* Returns TRUE if the specified path is in the open state, i.e. in the
 528  * state where points will be added to the path, or FALSE otherwise. This
 529  * function is implemented as a macro for performance reasons.
 530  */
 531
 532 extern void PATH_InitGdiPath(GdiPath *pPath);
 533 extern void PATH_DestroyGdiPath(GdiPath *pPath);
 534 extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest, const GdiPath *pPathSrc);
 535
 536 extern BOOL PATH_MoveTo(DC *dc);
 537 extern BOOL PATH_LineTo(DC *dc, INT x, INT y);
 538 extern BOOL PATH_Rectangle(DC *dc, INT x1, INT y1, INT x2, INT y2);
 539 extern BOOL PATH_Ellipse(DC *dc, INT x1, INT y1, INT x2, INT y2);
 540 extern BOOL PATH_Arc(DC *dc, INT x1, INT y1, INT x2, INT y2,
 541                      INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
 542 extern BOOL PATH_PolyBezierTo(DC *dc, const POINT *pt, DWORD cbCount);
 543 extern BOOL PATH_PolyBezier(DC *dc, const POINT *pt, DWORD cbCount);
 544 extern BOOL PATH_PolylineTo(DC *dc, const POINT *pt, DWORD cbCount);
 545 extern BOOL PATH_Polyline(DC *dc, const POINT *pt, DWORD cbCount);
 546 extern BOOL PATH_Polygon(DC *dc, const POINT *pt, DWORD cbCount);
 547 extern BOOL PATH_PolyPolyline(DC *dc, const POINT *pt, const DWORD *counts, DWORD polylines);
 548 extern BOOL PATH_PolyPolygon(DC *dc, const POINT *pt, const INT *counts, UINT polygons);
 549 extern BOOL PATH_RoundRect(DC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width, INT ell_height);
 550 extern BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags);
 551
 552 /* text.c */
 553 extern LPWSTR FONT_mbtowc(HDC, LPCSTR, INT, INT*, UINT*);
 554
 555 #define WINE_GGO_GRAY16_BITMAP 0x7f
 556
 557 #endif  /* __WINE_GDI_H */