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 struct hdc_list
  68 {
  69     HDC hdc;
  70     struct hdc_list *next;
  71 };
  72
  73 typedef struct tagGDIOBJHDR
  74 {
  75     HANDLE16    hNext;
  76     WORD        wMagic;
  77     DWORD       dwCount;
  78     const struct gdi_obj_funcs *funcs;
  79     struct hdc_list *hdcs;
  80 } GDIOBJHDR;
  81
  82
  83 /* It should not be necessary to access the contents of the GdiPath
  84  * structure directly; if you find that the exported functions don't
  85  * allow you to do what you want, then please place a new exported
  86  * function that does this job in path.c.
  87  */
  88 typedef enum tagGdiPathState
  89 {
  90    PATH_Null,
  91    PATH_Open,
  92    PATH_Closed
  93 } GdiPathState;
  94
  95 typedef struct tagGdiPath
  96 {
  97    GdiPathState state;
  98    POINT      *pPoints;
  99    BYTE         *pFlags;
 100    int          numEntriesUsed, numEntriesAllocated;
 101    BOOL       newStroke;
 102 } GdiPath;
 103
 104 typedef struct tagGdiFont *GdiFont;
 105
 106 typedef struct { int opaque; } *PHYSDEV;  /* PHYSDEV is an opaque pointer */
 107
 108 typedef struct tagDC
 109 {
 110     GDIOBJHDR    header;
 111     HDC          hSelf;            /* Handle to this DC */
 112     const struct tagDC_FUNCS *funcs; /* DC function table */
 113     PHYSDEV      physDev;         /* Physical device (driver-specific) */
 114     INT          saveLevel;
 115     DWORD        dwHookData;
 116     FARPROC16    hookProc;         /* the original SEGPTR ... */
 117     DCHOOKPROC   hookThunk;        /* ... and the thunk to call it */
 118
 119     INT          wndOrgX;          /* Window origin */
 120     INT          wndOrgY;
 121     INT          wndExtX;          /* Window extent */
 122     INT          wndExtY;
 123     INT          vportOrgX;        /* Viewport origin */
 124     INT          vportOrgY;
 125     INT          vportExtX;        /* Viewport extent */
 126     INT          vportExtY;
 127
 128     int           flags;
 129     HRGN          hClipRgn;     /* Clip region (may be 0) */
 130     HRGN          hVisRgn;      /* Visible region (must never be 0) */
 131     HRGN          hGCClipRgn;   /* GC clip region (ClipRgn AND VisRgn) */
 132     HPEN          hPen;
 133     HBRUSH        hBrush;
 134     HFONT         hFont;
 135     HBITMAP       hBitmap;
 136     HANDLE        hDevice;
 137     HPALETTE      hPalette;
 138
 139     GdiFont       gdiFont;
 140     GdiPath       path;
 141
 142     WORD          ROPmode;
 143     WORD          polyFillMode;
 144     WORD          stretchBltMode;
 145     WORD          relAbsMode;
 146     WORD          backgroundMode;
 147     COLORREF      backgroundColor;
 148     COLORREF      textColor;
 149     COLORREF      dcBrushColor;
 150     COLORREF      dcPenColor;
 151     short         brushOrgX;
 152     short         brushOrgY;
 153
 154     WORD          textAlign;         /* Text alignment from SetTextAlign() */
 155     short         charExtra;         /* Spacing from SetTextCharacterExtra() */
 156     short         breakTotalExtra;   /* Total extra space for justification */
 157     short         breakCount;        /* Break char. count */
 158     short         breakExtra;        /* breakTotalExtra / breakCount */
 159     short         breakRem;          /* breakTotalExtra % breakCount */
 160
 161     RECT          totalExtent;
 162     BYTE          bitsPerPixel;
 163
 164     INT           MapMode;
 165     INT           GraphicsMode;      /* Graphics mode */
 166     ABORTPROC     pAbortProc;        /* AbortProc for Printing */
 167     ABORTPROC16   pAbortProc16;
 168     INT           CursPosX;          /* Current position */
 169     INT           CursPosY;
 170     INT           ArcDirection;
 171     XFORM         xformWorld2Wnd;    /* World-to-window transformation */
 172     XFORM         xformWorld2Vport;  /* World-to-viewport transformation */
 173     XFORM         xformVport2World;  /* Inverse of the above transformation */
 174     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
 175 } DC;
 176
 177 /* Device functions for the Wine driver interface */
 178
 179 typedef INT (*DEVICEFONTENUMPROC)(LPENUMLOGFONTEXW,NEWTEXTMETRICEXW *,DWORD,
 180                                   LPARAM);
 181
 182 typedef struct tagDC_FUNCS
 183 {
 184     INT      (*pAbortDoc)(PHYSDEV);
 185     BOOL     (*pAbortPath)(PHYSDEV);
 186     BOOL     (*pAngleArc)(PHYSDEV,INT,INT,DWORD,FLOAT,FLOAT);
 187     BOOL     (*pArc)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 188     BOOL     (*pArcTo)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 189     BOOL     (*pBeginPath)(PHYSDEV);
 190     BOOL     (*pBitBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,DWORD);
 191     INT      (*pChoosePixelFormat)(PHYSDEV,const PIXELFORMATDESCRIPTOR *);
 192     BOOL     (*pChord)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 193     BOOL     (*pCloseFigure)(PHYSDEV);
 194     BOOL     (*pCreateBitmap)(PHYSDEV,HBITMAP);
 195     BOOL     (*pCreateDC)(DC *,PHYSDEV *,LPCWSTR,LPCWSTR,LPCWSTR,const DEVMODEW*);
 196     HBITMAP  (*pCreateDIBSection)(PHYSDEV,BITMAPINFO *,UINT,LPVOID *,HANDLE,DWORD,DWORD);
 197     BOOL     (*pDeleteBitmap)(HBITMAP);
 198     BOOL     (*pDeleteDC)(PHYSDEV);
 199     BOOL     (*pDeleteObject)(PHYSDEV,HGDIOBJ);
 200     INT      (*pDescribePixelFormat)(PHYSDEV,INT,UINT,PIXELFORMATDESCRIPTOR *);
 201     DWORD    (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
 202     BOOL     (*pEllipse)(PHYSDEV,INT,INT,INT,INT);
 203     INT      (*pEndDoc)(PHYSDEV);
 204     INT      (*pEndPage)(PHYSDEV);
 205     BOOL     (*pEndPath)(PHYSDEV);
 206     BOOL     (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,DEVICEFONTENUMPROC,LPARAM);
 207     INT      (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
 208     INT      (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 209     INT      (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
 210     BOOL     (*pExtFloodFill)(PHYSDEV,INT,INT,COLORREF,UINT);
 211     INT      (*pExtSelectClipRgn)(PHYSDEV,HRGN,INT);
 212     BOOL     (*pExtTextOut)(PHYSDEV,INT,INT,UINT,const RECT*,LPCWSTR,UINT,const INT*);
 213     BOOL     (*pFillPath)(PHYSDEV);
 214     BOOL     (*pFillRgn)(PHYSDEV,HRGN,HBRUSH);
 215     BOOL     (*pFlattenPath)(PHYSDEV);
 216     BOOL     (*pFrameRgn)(PHYSDEV,HRGN,HBRUSH,INT,INT);
 217     BOOL     (*pGdiComment)(PHYSDEV,UINT,CONST BYTE*);
 218     LONG     (*pGetBitmapBits)(HBITMAP,void*,LONG);
 219     BOOL     (*pGetCharWidth)(PHYSDEV,UINT,UINT,LPINT);
 220     BOOL     (*pGetDCOrgEx)(PHYSDEV,LPPOINT);
 221     UINT     (*pGetDIBColorTable)(PHYSDEV,UINT,UINT,RGBQUAD*);
 222     INT      (*pGetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPVOID,BITMAPINFO*,UINT);
 223     INT      (*pGetDeviceCaps)(PHYSDEV,INT);
 224     BOOL     (*pGetDeviceGammaRamp)(PHYSDEV,LPVOID);
 225     COLORREF (*pGetNearestColor)(PHYSDEV,COLORREF);
 226     COLORREF (*pGetPixel)(PHYSDEV,INT,INT);
 227     INT      (*pGetPixelFormat)(PHYSDEV);
 228     UINT     (*pGetSystemPaletteEntries)(PHYSDEV,UINT,UINT,LPPALETTEENTRY);
 229     BOOL     (*pGetTextExtentPoint)(PHYSDEV,LPCWSTR,INT,LPSIZE);
 230     BOOL     (*pGetTextMetrics)(PHYSDEV,TEXTMETRICW*);
 231     INT      (*pIntersectClipRect)(PHYSDEV,INT,INT,INT,INT);
 232     BOOL     (*pInvertRgn)(PHYSDEV,HRGN);
 233     BOOL     (*pLineTo)(PHYSDEV,INT,INT);
 234     BOOL     (*pModifyWorldTransform)(PHYSDEV,const XFORM*,INT);
 235     BOOL     (*pMoveTo)(PHYSDEV,INT,INT);
 236     INT      (*pOffsetClipRgn)(PHYSDEV,INT,INT);
 237     INT      (*pOffsetViewportOrg)(PHYSDEV,INT,INT);
 238     INT      (*pOffsetWindowOrg)(PHYSDEV,INT,INT);
 239     BOOL     (*pPaintRgn)(PHYSDEV,HRGN);
 240     BOOL     (*pPatBlt)(PHYSDEV,INT,INT,INT,INT,DWORD);
 241     BOOL     (*pPie)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 242     BOOL     (*pPolyBezier)(PHYSDEV,const POINT*,DWORD);
 243     BOOL     (*pPolyBezierTo)(PHYSDEV,const POINT*,DWORD);
 244     BOOL     (*pPolyDraw)(PHYSDEV,const POINT*,const BYTE *,DWORD);
 245     BOOL     (*pPolyPolygon)(PHYSDEV,const POINT*,const INT*,UINT);
 246     BOOL     (*pPolyPolyline)(PHYSDEV,const POINT*,const DWORD*,DWORD);
 247     BOOL     (*pPolygon)(PHYSDEV,const POINT*,INT);
 248     BOOL     (*pPolyline)(PHYSDEV,const POINT*,INT);
 249     BOOL     (*pPolylineTo)(PHYSDEV,const POINT*,INT);
 250     UINT     (*pRealizeDefaultPalette)(PHYSDEV);
 251     UINT     (*pRealizePalette)(PHYSDEV,HPALETTE,BOOL);
 252     BOOL     (*pRectangle)(PHYSDEV,INT,INT,INT,INT);
 253     HDC      (*pResetDC)(PHYSDEV,const DEVMODEA*);
 254     BOOL     (*pRestoreDC)(PHYSDEV,INT);
 255     BOOL     (*pRoundRect)(PHYSDEV,INT,INT,INT,INT,INT,INT);
 256     INT      (*pSaveDC)(PHYSDEV);
 257     INT      (*pScaleViewportExt)(PHYSDEV,INT,INT,INT,INT);
 258     INT      (*pScaleWindowExt)(PHYSDEV,INT,INT,INT,INT);
 259     HBITMAP  (*pSelectBitmap)(PHYSDEV,HBITMAP);
 260     HBRUSH   (*pSelectBrush)(PHYSDEV,HBRUSH);
 261     BOOL     (*pSelectClipPath)(PHYSDEV,INT);
 262     HFONT    (*pSelectFont)(PHYSDEV,HFONT);
 263     HPALETTE (*pSelectPalette)(PHYSDEV,HPALETTE,BOOL);
 264     HPEN     (*pSelectPen)(PHYSDEV,HPEN);
 265     INT      (*pSetArcDirection)(PHYSDEV,INT);
 266     LONG     (*pSetBitmapBits)(HBITMAP,const void*,LONG);
 267     COLORREF (*pSetBkColor)(PHYSDEV,COLORREF);
 268     INT      (*pSetBkMode)(PHYSDEV,INT);
 269     COLORREF (*pSetDCBrushColor)(PHYSDEV, COLORREF);
 270     DWORD    (*pSetDCOrg)(PHYSDEV,INT,INT);
 271     COLORREF (*pSetDCPenColor)(PHYSDEV, COLORREF);
 272     UINT     (*pSetDIBColorTable)(PHYSDEV,UINT,UINT,const RGBQUAD*);
 273     INT      (*pSetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
 274     INT      (*pSetDIBitsToDevice)(PHYSDEV,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,LPCVOID,
 275                                    const BITMAPINFO*,UINT);
 276     VOID     (*pSetDeviceClipping)(PHYSDEV,HRGN);
 277     BOOL     (*pSetDeviceGammaRamp)(PHYSDEV,LPVOID);
 278     INT      (*pSetMapMode)(PHYSDEV,INT);
 279     DWORD    (*pSetMapperFlags)(PHYSDEV,DWORD);
 280     COLORREF (*pSetPixel)(PHYSDEV,INT,INT,COLORREF);
 281     BOOL     (*pSetPixelFormat)(PHYSDEV,INT,const PIXELFORMATDESCRIPTOR *);
 282     INT      (*pSetPolyFillMode)(PHYSDEV,INT);
 283     INT      (*pSetROP2)(PHYSDEV,INT);
 284     INT      (*pSetRelAbs)(PHYSDEV,INT);
 285     INT      (*pSetStretchBltMode)(PHYSDEV,INT);
 286     UINT     (*pSetTextAlign)(PHYSDEV,UINT);
 287     INT      (*pSetTextCharacterExtra)(PHYSDEV,INT);
 288     DWORD    (*pSetTextColor)(PHYSDEV,DWORD);
 289     INT      (*pSetTextJustification)(PHYSDEV,INT,INT);
 290     INT      (*pSetViewportExt)(PHYSDEV,INT,INT);
 291     INT      (*pSetViewportOrg)(PHYSDEV,INT,INT);
 292     INT      (*pSetWindowExt)(PHYSDEV,INT,INT);
 293     INT      (*pSetWindowOrg)(PHYSDEV,INT,INT);
 294     BOOL     (*pSetWorldTransform)(PHYSDEV,const XFORM*);
 295     INT      (*pStartDoc)(PHYSDEV,const DOCINFOA*);
 296     INT      (*pStartPage)(PHYSDEV);
 297     BOOL     (*pStretchBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,DWORD);
 298     INT      (*pStretchDIBits)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT,const void *,
 299                                const BITMAPINFO*,UINT,DWORD);
 300     BOOL     (*pStrokeAndFillPath)(PHYSDEV);
 301     BOOL     (*pStrokePath)(PHYSDEV);
 302     BOOL     (*pSwapBuffers)(PHYSDEV);
 303     BOOL     (*pWidenPath)(PHYSDEV);
 304 } DC_FUNCTIONS;
 305
 306 /* Certain functions will do no further processing if the driver returns this.
 307    Used by mfdrv for example. */
 308 #define GDI_NO_MORE_WORK 2
 309
 310   /* DC hook codes */
 311 #define DCHC_INVALIDVISRGN      0x0001
 312 #define DCHC_DELETEDC           0x0002
 313
 314 #define DCHF_INVALIDATEVISRGN   0x0001
 315 #define DCHF_VALIDATEVISRGN     0x0002
 316
 317   /* DC flags */
 318 #define DC_SAVED      0x0002   /* It is a saved DC */
 319 #define DC_DIRTY      0x0004   /* hVisRgn has to be updated */
 320 #define DC_THUNKHOOK  0x0008   /* DC hook is in the 16-bit code */
 321
 322 #define GDI_HEAP_SIZE 0xffe0
 323
 324 /* extra stock object: default 1x1 bitmap for memory DCs */
 325 #define DEFAULT_BITMAP (STOCK_LAST+1)
 326
 327 /* Metafile defines */
 328
 329 #define META_EOF 0x0000
 330 /* values of mtType in METAHEADER.  Note however that the disk image of a disk
 331    based metafile has mtType == 1 */
 332 #define METAFILE_MEMORY 1
 333 #define METAFILE_DISK   2
 334
 335 /* Rounds a floating point number to integer. The world-to-viewport
 336  * transformation process is done in floating point internally. This function
 337  * is then used to round these coordinates to integer values.
 338  */
 339 static inline INT WINE_UNUSED GDI_ROUND(FLOAT val)
 340 {
 341    return (int)floor(val + 0.5);
 342 }
 343
 344   /* World -> Device size conversion */
 345
 346 /* Performs a world-to-viewport transformation on the specified width (which
 347  * is in floating point format).
 348  */
 349 static inline void WINE_UNUSED INTERNAL_XWSTODS_FLOAT(DC *dc, FLOAT *width)
 350 {
 351     /* Perform the transformation */
 352     *width = *width * dc->xformWorld2Vport.eM11;
 353 }
 354
 355 /* Performs a world-to-viewport transformation on the specified width (which
 356  * is in integer format).
 357  */
 358 static inline INT WINE_UNUSED INTERNAL_XWSTODS(DC *dc, INT width)
 359 {
 360     FLOAT floatWidth;
 361
 362     /* Perform operation with floating point */
 363     floatWidth = (FLOAT)width;
 364     INTERNAL_XWSTODS_FLOAT(dc, &floatWidth);
 365
 366     /* Round to integers */
 367     return GDI_ROUND(floatWidth);
 368 }
 369
 370
 371 /* Performs a world-to-viewport transformation on the specified size (which
 372  * is in floating point format).
 373  */
 374 static inline void WINE_UNUSED INTERNAL_YWSTODS_FLOAT(DC *dc, FLOAT *height)
 375 {
 376     /* Perform the transformation */
 377     *height = *height * dc->xformWorld2Vport.eM22;
 378 }
 379
 380 /* Performs a world-to-viewport transformation on the specified size (which
 381  * is in integer format).
 382  */
 383 static inline INT WINE_UNUSED INTERNAL_YWSTODS(DC *dc, INT height)
 384 {
 385     FLOAT floatHeight;
 386
 387     /* Perform operation with floating point */
 388     floatHeight = (FLOAT)height;
 389     INTERNAL_YWSTODS_FLOAT(dc, &floatHeight);
 390
 391     /* Round to integers */
 392     return GDI_ROUND(floatHeight);
 393 }
 394
 395
 396   /* Device -> World size conversion */
 397
 398 /* Performs a device to world transformation on the specified width (which
 399  * is in floating point format).
 400  */
 401 static inline void INTERNAL_XDSTOWS_FLOAT(DC *dc, FLOAT *width)
 402 {
 403     /* Perform the transformation */
 404     *width = *width * dc->xformVport2World.eM11;
 405 }
 406
 407 /* Performs a device to world transformation on the specified width (which
 408  * is in integer format).
 409  */
 410 static inline INT INTERNAL_XDSTOWS(DC *dc, INT width)
 411 {
 412     FLOAT floatWidth;
 413
 414     /* Perform operation with floating point */
 415     floatWidth = (FLOAT)width;
 416     INTERNAL_XDSTOWS_FLOAT(dc, &floatWidth);
 417
 418     /* Round to integers */
 419     return GDI_ROUND(floatWidth);
 420 }
 421
 422
 423 /* Performs a device to world transformation on the specified size (which
 424  * is in floating point format).
 425  */
 426 static inline void INTERNAL_YDSTOWS_FLOAT(DC *dc, FLOAT *height)
 427 {
 428     /* Perform the transformation */
 429     *height = *height * dc->xformVport2World.eM22;
 430 }
 431
 432 /* Performs a device to world transformation on the specified size (which
 433  * is in integer format).
 434  */
 435 static inline INT INTERNAL_YDSTOWS(DC *dc, INT height)
 436 {
 437     FLOAT floatHeight;
 438
 439     /* Perform operation with floating point */
 440     floatHeight = (FLOAT)height;
 441     INTERNAL_YDSTOWS_FLOAT(dc, &floatHeight);
 442
 443     /* Round to integers */
 444     return GDI_ROUND(floatHeight);
 445 }
 446
 447
 448   /* Device <-> logical size conversion */
 449
 450 #define XDSTOLS(dc,x) \
 451     MulDiv((x), (dc)->wndExtX, (dc)->vportExtX)
 452 #define YDSTOLS(dc,y) \
 453     MulDiv((y), (dc)->wndExtY, (dc)->vportExtY)
 454 #define XLSTODS(dc,x) \
 455     MulDiv((x), (dc)->vportExtX, (dc)->wndExtX)
 456 #define YLSTODS(dc,y) \
 457     MulDiv((y), (dc)->vportExtY, (dc)->wndExtY)
 458
 459   /* GDI local heap */
 460
 461 extern BOOL GDI_Init(void);
 462 extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ *, const struct gdi_obj_funcs *funcs );
 463 extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
 464 extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
 465 extern void *GDI_GetObjPtr( HGDIOBJ, WORD );
 466 extern void GDI_ReleaseObj( HGDIOBJ );
 467 extern void GDI_CheckNotLock(void);
 468
 469 extern const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name );
 470 extern const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs );
 471 extern void DRIVER_release_driver( const DC_FUNCTIONS *funcs );
 472 extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size );
 473
 474 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
 475
 476 extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic );
 477 extern DC * DC_GetDCPtr( HDC hdc );
 478 extern DC * DC_GetDCUpdate( HDC hdc );
 479 extern void DC_InitDC( DC * dc );
 480 extern void DC_UpdateXforms( DC * dc );
 481
 482 BOOL GDI_hdc_using_object(HGDIOBJ obj, HDC hdc);
 483 BOOL GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc);
 484
 485 /* bidi.c */
 486
 487 /* Wine_GCPW Flags */
 488 /* Directionality -
 489  * LOOSE means that the paragraph dir is only set if there is no strong character.
 490  * FORCE means override the characters in the paragraph.
 491  */
 492 #define WINE_GCPW_FORCE_LTR 0
 493 #define WINE_GCPW_FORCE_RTL 1
 494 #define WINE_GCPW_LOOSE_LTR 2
 495 #define WINE_GCPW_LOOSE_RTL 3
 496 #define WINE_GCPW_DIR_MASK 3
 497 extern BOOL BIDI_Reorder( LPCWSTR lpString, INT uCount, DWORD dwFlags, DWORD dwWineGCP_Flags,
 498                           LPWSTR lpOutString, INT uCountOut, UINT *lpOrder );
 499 extern BOOL BidiAvail;
 500
 501 /* clipping.c */
 502 extern void CLIPPING_UpdateGCRegion( DC * dc );
 503
 504 /* enhmetafile.c */
 505 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk );
 506
 507 /* freetype.c */
 508 extern INT WineEngAddFontResourceEx(LPCWSTR, DWORD, PVOID);
 509 extern GdiFont WineEngCreateFontInstance(DC*, HFONT);
 510 extern BOOL WineEngDestroyFontInstance(HFONT handle);
 511 extern DWORD WineEngEnumFonts(LPLOGFONTW, DEVICEFONTENUMPROC, LPARAM);
 512 extern BOOL WineEngGetCharWidth(GdiFont, UINT, UINT, LPINT);
 513 extern DWORD WineEngGetFontData(GdiFont, DWORD, DWORD, LPVOID, DWORD);
 514 extern DWORD WineEngGetGlyphIndices(GdiFont font, LPCWSTR lpstr, INT count,
 515                                     LPWORD pgi, DWORD flags);
 516 extern DWORD WineEngGetGlyphOutline(GdiFont, UINT glyph, UINT format,
 517                                     LPGLYPHMETRICS, DWORD buflen, LPVOID buf,
 518                                     const MAT2*);
 519 extern UINT WineEngGetOutlineTextMetrics(GdiFont, UINT, LPOUTLINETEXTMETRICW);
 520 extern UINT WineEngGetTextCharsetInfo(GdiFont font, LPFONTSIGNATURE fs, DWORD flags);
 521 extern BOOL WineEngGetTextExtentPoint(GdiFont, LPCWSTR, INT, LPSIZE);
 522 extern BOOL WineEngGetTextExtentPointI(GdiFont, const WORD *, INT, LPSIZE);
 523 extern INT  WineEngGetTextFace(GdiFont, INT, LPWSTR);
 524 extern BOOL WineEngGetTextMetrics(GdiFont, LPTEXTMETRICW);
 525 extern BOOL WineEngInit(void);
 526 extern BOOL WineEngRemoveFontResourceEx(LPCWSTR, DWORD, PVOID);
 527
 528 /* metafile.c */
 529 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh);
 530 extern HMETAFILE16 MF_Create_HMETAFILE16(METAHEADER *mh);
 531 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCSTR filename);
 532
 533 /* region.c */
 534 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y );
 535
 536 /* palette.c */
 537 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg);
 538 extern UINT WINAPI GDIRealizePalette( HDC hdc );
 539
 540 /* path.c */
 541
 542 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
 543 /* Returns TRUE if the specified path is in the open state, i.e. in the
 544  * state where points will be added to the path, or FALSE otherwise. This
 545  * function is implemented as a macro for performance reasons.
 546  */
 547
 548 extern void PATH_InitGdiPath(GdiPath *pPath);
 549 extern void PATH_DestroyGdiPath(GdiPath *pPath);
 550 extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest, const GdiPath *pPathSrc);
 551
 552 extern BOOL PATH_MoveTo(DC *dc);
 553 extern BOOL PATH_LineTo(DC *dc, INT x, INT y);
 554 extern BOOL PATH_Rectangle(DC *dc, INT x1, INT y1, INT x2, INT y2);
 555 extern BOOL PATH_Ellipse(DC *dc, INT x1, INT y1, INT x2, INT y2);
 556 extern BOOL PATH_Arc(DC *dc, INT x1, INT y1, INT x2, INT y2,
 557                      INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
 558 extern BOOL PATH_PolyBezierTo(DC *dc, const POINT *pt, DWORD cbCount);
 559 extern BOOL PATH_PolyBezier(DC *dc, const POINT *pt, DWORD cbCount);
 560 extern BOOL PATH_PolylineTo(DC *dc, const POINT *pt, DWORD cbCount);
 561 extern BOOL PATH_Polyline(DC *dc, const POINT *pt, DWORD cbCount);
 562 extern BOOL PATH_Polygon(DC *dc, const POINT *pt, DWORD cbCount);
 563 extern BOOL PATH_PolyPolyline(DC *dc, const POINT *pt, const DWORD *counts, DWORD polylines);
 564 extern BOOL PATH_PolyPolygon(DC *dc, const POINT *pt, const INT *counts, UINT polygons);
 565 extern BOOL PATH_RoundRect(DC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width, INT ell_height);
 566 extern BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags);
 567
 568 /* text.c */
 569 extern LPWSTR FONT_mbtowc(HDC, LPCSTR, INT, INT*, UINT*);
 570
 571 #define WINE_GGO_GRAY16_BITMAP 0x7f
 572
 573 #endif  /* __WINE_GDI_H */