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