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