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wine/include/gdi.h
Alexandre Julliard d8a9244fc4 Added function table to GDI objects for better encapsulation. 
Removed some direct accesses to the bitmap structure.
Fixed handling of stock bitmap if selected in multiple DCs.
Some minor fixes to the DC function table.
2002-05-31 18:43:22 +00:00

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/*
* GDI definitions
*
* Copyright 1993 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __WINE_GDI_H
#define __WINE_GDI_H
#include "windef.h"
#include "wingdi.h"
#include "wine/wingdi16.h"
#include "path.h"
#include <math.h>
/* GDI objects magic numbers */
#define FIRST_MAGIC 0x4f47
#define PEN_MAGIC 0x4f47
#define BRUSH_MAGIC 0x4f48
#define FONT_MAGIC 0x4f49
#define PALETTE_MAGIC 0x4f4a
#define BITMAP_MAGIC 0x4f4b
#define REGION_MAGIC 0x4f4c
#define DC_MAGIC 0x4f4d
#define DISABLED_DC_MAGIC 0x4f4e
#define META_DC_MAGIC 0x4f4f
#define METAFILE_MAGIC 0x4f50
#define METAFILE_DC_MAGIC 0x4f51
#define ENHMETAFILE_MAGIC 0x4f52
#define ENHMETAFILE_DC_MAGIC 0x4f53
#define LAST_MAGIC 0x4f53
#define MAGIC_DONTCARE 0xffff
/* GDI constants for making objects private/system (naming undoc. !) */
#define OBJECT_PRIVATE 0x2000
#define OBJECT_NOSYSTEM 0x8000
#define GDIMAGIC(magic) ((magic) & ~(OBJECT_PRIVATE|OBJECT_NOSYSTEM))
struct gdi_obj_funcs
{
HGDIOBJ (*pSelectObject)( HGDIOBJ handle, void *obj, HDC hdc );
INT (*pGetObject16)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
INT (*pGetObjectA)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
INT (*pGetObjectW)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
BOOL (*pUnrealizeObject)( HGDIOBJ handle, void *obj );
BOOL (*pDeleteObject)( HGDIOBJ handle, void *obj );
};
typedef struct tagGDIOBJHDR
{
HANDLE16 hNext;
WORD wMagic;
DWORD dwCount;
const struct gdi_obj_funcs *funcs;
} GDIOBJHDR;
typedef struct tagGdiFont *GdiFont;
typedef struct { int opaque; } *PHYSDEV; /* PHYSDEV is an opaque pointer */
typedef struct tagDC
{
GDIOBJHDR header;
HDC hSelf; /* Handle to this DC */
const struct tagDC_FUNCS *funcs; /* DC function table */
PHYSDEV physDev; /* Physical device (driver-specific) */
INT saveLevel;
DWORD dwHookData;
FARPROC16 hookProc; /* the original SEGPTR ... */
DCHOOKPROC hookThunk; /* ... and the thunk to call it */
INT wndOrgX; /* Window origin */
INT wndOrgY;
INT wndExtX; /* Window extent */
INT wndExtY;
INT vportOrgX; /* Viewport origin */
INT vportOrgY;
INT vportExtX; /* Viewport extent */
INT vportExtY;
int flags;
HRGN16 hClipRgn; /* Clip region (may be 0) */
HRGN16 hVisRgn; /* Visible region (must never be 0) */
HRGN16 hGCClipRgn; /* GC clip region (ClipRgn AND VisRgn) */
HPEN16 hPen;
HBRUSH16 hBrush;
HFONT16 hFont;
HBITMAP16 hBitmap;
HANDLE16 hDevice;
HPALETTE16 hPalette;
GdiFont gdiFont;
GdiPath path;
WORD ROPmode;
WORD polyFillMode;
WORD stretchBltMode;
WORD relAbsMode;
WORD backgroundMode;
COLORREF backgroundColor;
COLORREF textColor;
short brushOrgX;
short brushOrgY;
WORD textAlign; /* Text alignment from SetTextAlign() */
short charExtra; /* Spacing from SetTextCharacterExtra() */
short breakTotalExtra; /* Total extra space for justification */
short breakCount; /* Break char. count */
short breakExtra; /* breakTotalExtra / breakCount */
short breakRem; /* breakTotalExtra % breakCount */
RECT totalExtent;
BYTE bitsPerPixel;
INT MapMode;
INT GraphicsMode; /* Graphics mode */
INT DCOrgX; /* DC origin */
INT DCOrgY;
ABORTPROC pAbortProc; /* AbortProc for Printing */
ABORTPROC16 pAbortProc16;
INT CursPosX; /* Current position */
INT CursPosY;
INT ArcDirection;
XFORM xformWorld2Wnd; /* World-to-window transformation */
XFORM xformWorld2Vport; /* World-to-viewport transformation */
XFORM xformVport2World; /* Inverse of the above transformation */
BOOL vport2WorldValid; /* Is xformVport2World valid? */
} DC;
/* Device functions for the Wine driver interface */
typedef INT (*DEVICEFONTENUMPROC)(LPENUMLOGFONTEXW,LPNEWTEXTMETRICEXW,DWORD,
LPARAM);
typedef struct tagDC_FUNCS
{
INT (*pAbortDoc)(PHYSDEV);
BOOL (*pAbortPath)(PHYSDEV);
BOOL (*pAngleArc)(PHYSDEV,INT,INT,DWORD,FLOAT,FLOAT);
BOOL (*pArc)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
BOOL (*pArcTo)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
BOOL (*pBeginPath)(PHYSDEV);
BOOL (*pBitBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,DWORD);
INT (*pChoosePixelFormat)(PHYSDEV,const PIXELFORMATDESCRIPTOR *);
BOOL (*pChord)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
BOOL (*pCloseFigure)(PHYSDEV);
BOOL (*pCreateBitmap)(PHYSDEV,HBITMAP);
BOOL (*pCreateDC)(DC *,LPCSTR,LPCSTR,LPCSTR,const DEVMODEA*);
HBITMAP (*pCreateDIBSection)(PHYSDEV,BITMAPINFO *,UINT,LPVOID *,HANDLE,DWORD,DWORD);
BOOL (*pDeleteBitmap)(HBITMAP);
BOOL (*pDeleteDC)(PHYSDEV);
INT (*pDescribePixelFormat)(PHYSDEV,INT,UINT,PIXELFORMATDESCRIPTOR *);
DWORD (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
BOOL (*pEllipse)(PHYSDEV,INT,INT,INT,INT);
INT (*pEndDoc)(PHYSDEV);
INT (*pEndPage)(PHYSDEV);
BOOL (*pEndPath)(PHYSDEV);
BOOL (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,DEVICEFONTENUMPROC,LPARAM);
INT (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
INT (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
BOOL (*pExtFloodFill)(PHYSDEV,INT,INT,COLORREF,UINT);
INT (*pExtSelectClipRgn)(PHYSDEV,HRGN,INT);
BOOL (*pExtTextOut)(PHYSDEV,INT,INT,UINT,const RECT*,LPCWSTR,UINT,const INT*);
BOOL (*pFillPath)(PHYSDEV);
BOOL (*pFillRgn)(PHYSDEV,HRGN,HBRUSH);
BOOL (*pFlattenPath)(PHYSDEV);
BOOL (*pFrameRgn)(PHYSDEV,HRGN,HBRUSH,INT,INT);
LONG (*pGetBitmapBits)(HBITMAP,void*,LONG);
BOOL (*pGetCharWidth)(PHYSDEV,UINT,UINT,LPINT);
BOOL (*pGetDCOrgEx)(PHYSDEV,LPPOINT);
UINT (*pGetDIBColorTable)(PHYSDEV,UINT,UINT,RGBQUAD*);
INT (*pGetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPVOID,BITMAPINFO*,UINT);
INT (*pGetDeviceCaps)(PHYSDEV,INT);
BOOL (*pGetDeviceGammaRamp)(PHYSDEV,LPVOID);
COLORREF (*pGetPixel)(PHYSDEV,INT,INT);
INT (*pGetPixelFormat)(PHYSDEV);
BOOL (*pGetTextExtentPoint)(PHYSDEV,LPCWSTR,INT,LPSIZE);
BOOL (*pGetTextMetrics)(PHYSDEV,TEXTMETRICW*);
INT (*pIntersectClipRect)(PHYSDEV,INT,INT,INT,INT);
BOOL (*pInvertRgn)(PHYSDEV,HRGN);
BOOL (*pLineTo)(PHYSDEV,INT,INT);
BOOL (*pMoveTo)(PHYSDEV,INT,INT);
INT (*pOffsetClipRgn)(PHYSDEV,INT,INT);
BOOL (*pOffsetViewportOrg)(PHYSDEV,INT,INT);
BOOL (*pOffsetWindowOrg)(PHYSDEV,INT,INT);
BOOL (*pPaintRgn)(PHYSDEV,HRGN);
BOOL (*pPatBlt)(PHYSDEV,INT,INT,INT,INT,DWORD);
BOOL (*pPie)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
BOOL (*pPolyBezier)(PHYSDEV,const POINT*,DWORD);
BOOL (*pPolyBezierTo)(PHYSDEV,const POINT*,DWORD);
BOOL (*pPolyDraw)(PHYSDEV,const POINT*,const BYTE *,DWORD);
BOOL (*pPolyPolygon)(PHYSDEV,const POINT*,const INT*,UINT);
BOOL (*pPolyPolyline)(PHYSDEV,const POINT*,const DWORD*,DWORD);
BOOL (*pPolygon)(PHYSDEV,const POINT*,INT);
BOOL (*pPolyline)(PHYSDEV,const POINT*,INT);
BOOL (*pPolylineTo)(PHYSDEV,const POINT*,INT);
UINT (*pRealizePalette)(PHYSDEV);
BOOL (*pRectangle)(PHYSDEV,INT,INT,INT,INT);
HDC (*pResetDC)(PHYSDEV,const DEVMODEA*);
BOOL (*pRestoreDC)(PHYSDEV,INT);
BOOL (*pRoundRect)(PHYSDEV,INT,INT,INT,INT,INT,INT);
INT (*pSaveDC)(PHYSDEV);
BOOL (*pScaleViewportExt)(PHYSDEV,INT,INT,INT,INT);
BOOL (*pScaleWindowExt)(PHYSDEV,INT,INT,INT,INT);
HBITMAP (*pSelectBitmap)(PHYSDEV,HBITMAP);
HBRUSH (*pSelectBrush)(PHYSDEV,HBRUSH);
BOOL (*pSelectClipPath)(PHYSDEV,INT);
HFONT (*pSelectFont)(PHYSDEV,HFONT);
HPALETTE (*pSelectPalette)(PHYSDEV,HPALETTE,BOOL);
HPEN (*pSelectPen)(PHYSDEV,HPEN);
LONG (*pSetBitmapBits)(HBITMAP,const void*,LONG);
COLORREF (*pSetBkColor)(PHYSDEV,COLORREF);
INT (*pSetBkMode)(PHYSDEV,INT);
UINT (*pSetDIBColorTable)(PHYSDEV,UINT,UINT,const RGBQUAD*);
INT (*pSetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
INT (*pSetDIBitsToDevice)(PHYSDEV,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,LPCVOID,
const BITMAPINFO*,UINT);
VOID (*pSetDeviceClipping)(PHYSDEV,HRGN);
BOOL (*pSetDeviceGammaRamp)(PHYSDEV,LPVOID);
INT (*pSetMapMode)(PHYSDEV,INT);
DWORD (*pSetMapperFlags)(PHYSDEV,DWORD);
COLORREF (*pSetPixel)(PHYSDEV,INT,INT,COLORREF);
BOOL (*pSetPixelFormat)(PHYSDEV,INT,const PIXELFORMATDESCRIPTOR *);
INT (*pSetPolyFillMode)(PHYSDEV,INT);
INT (*pSetROP2)(PHYSDEV,INT);
INT (*pSetRelAbs)(PHYSDEV,INT);
INT (*pSetStretchBltMode)(PHYSDEV,INT);
UINT (*pSetTextAlign)(PHYSDEV,UINT);
INT (*pSetTextCharacterExtra)(PHYSDEV,INT);
DWORD (*pSetTextColor)(PHYSDEV,DWORD);
INT (*pSetTextJustification)(PHYSDEV,INT,INT);
BOOL (*pSetViewportExt)(PHYSDEV,INT,INT);
BOOL (*pSetViewportOrg)(PHYSDEV,INT,INT);
BOOL (*pSetWindowExt)(PHYSDEV,INT,INT);
BOOL (*pSetWindowOrg)(PHYSDEV,INT,INT);
INT (*pStartDoc)(PHYSDEV,const DOCINFOA*);
INT (*pStartPage)(PHYSDEV);
BOOL (*pStretchBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,DWORD);
INT (*pStretchDIBits)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT,const void *,
const BITMAPINFO*,UINT,DWORD);
BOOL (*pStrokeAndFillPath)(PHYSDEV);
BOOL (*pStrokePath)(PHYSDEV);
BOOL (*pSwapBuffers)(PHYSDEV);
BOOL (*pWidenPath)(PHYSDEV);
} DC_FUNCTIONS;
/* DC hook codes */
#define DCHC_INVALIDVISRGN 0x0001
#define DCHC_DELETEDC 0x0002
#define DCHF_INVALIDATEVISRGN 0x0001
#define DCHF_VALIDATEVISRGN 0x0002
/* DC flags */
#define DC_MEMORY 0x0001 /* It is a memory DC */
#define DC_SAVED 0x0002 /* It is a saved DC */
#define DC_DIRTY 0x0004 /* hVisRgn has to be updated */
#define DC_THUNKHOOK 0x0008 /* DC hook is in the 16-bit code */
#define GDI_HEAP_SIZE 0xffe0
/* extra stock object: default 1x1 bitmap for memory DCs */
#define DEFAULT_BITMAP (STOCK_LAST+1)
/* Device <-> logical coords conversion */
/* A floating point version of the POINT structure */
typedef struct tagFLOAT_POINT
{
FLOAT x, y;
} FLOAT_POINT;
/* Rounds a floating point number to integer. The world-to-viewport
* transformation process is done in floating point internally. This function
* is then used to round these coordinates to integer values.
*/
static inline INT WINE_UNUSED GDI_ROUND(FLOAT val)
{
return (int)floor(val + 0.5);
}
/* Performs a viewport-to-world transformation on the specified point (which
* is in floating point format). Returns TRUE if successful, else FALSE.
*/
static inline BOOL WINE_UNUSED INTERNAL_DPTOLP_FLOAT(DC *dc, FLOAT_POINT *point)
{
FLOAT x, y;
/* Check that the viewport-to-world transformation is valid */
if (!dc->vport2WorldValid)
return FALSE;
/* Perform the transformation */
x = point->x;
y = point->y;
point->x = x * dc->xformVport2World.eM11 +
y * dc->xformVport2World.eM21 +
dc->xformVport2World.eDx;
point->y = x * dc->xformVport2World.eM12 +
y * dc->xformVport2World.eM22 +
dc->xformVport2World.eDy;
return TRUE;
}
/* Performs a viewport-to-world transformation on the specified point (which
* is in integer format). Returns TRUE if successful, else FALSE.
*/
static inline BOOL WINE_UNUSED INTERNAL_DPTOLP(DC *dc, LPPOINT point)
{
FLOAT_POINT floatPoint;
/* Perform operation with floating point */
floatPoint.x=(FLOAT)point->x;
floatPoint.y=(FLOAT)point->y;
if (!INTERNAL_DPTOLP_FLOAT(dc, &floatPoint))
return FALSE;
/* Round to integers */
point->x = GDI_ROUND(floatPoint.x);
point->y = GDI_ROUND(floatPoint.y);
return TRUE;
}
/* Performs a world-to-viewport transformation on the specified point (which
* is in floating point format).
*/
static inline void WINE_UNUSED INTERNAL_LPTODP_FLOAT(DC *dc, FLOAT_POINT *point)
{
FLOAT x, y;
/* Perform the transformation */
x = point->x;
y = point->y;
point->x = x * dc->xformWorld2Vport.eM11 +
y * dc->xformWorld2Vport.eM21 +
dc->xformWorld2Vport.eDx;
point->y = x * dc->xformWorld2Vport.eM12 +
y * dc->xformWorld2Vport.eM22 +
dc->xformWorld2Vport.eDy;
}
/* Performs a world-to-viewport transformation on the specified point (which
* is in integer format).
*/
static inline void WINE_UNUSED INTERNAL_LPTODP(DC *dc, LPPOINT point)
{
FLOAT_POINT floatPoint;
/* Perform operation with floating point */
floatPoint.x=(FLOAT)point->x;
floatPoint.y=(FLOAT)point->y;
INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
/* Round to integers */
point->x = GDI_ROUND(floatPoint.x);
point->y = GDI_ROUND(floatPoint.y);
}
/* Performs a world-to-viewport transformation on the specified point (which
* is in integer format).
*/
static inline INT WINE_UNUSED INTERNAL_XWPTODP(DC *dc, INT x, INT y)
{
FLOAT_POINT floatPoint;
/* Perform operation with floating point */
floatPoint.x=(FLOAT)x;
floatPoint.y=(FLOAT)y;
INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
/* Round to integers */
return GDI_ROUND(floatPoint.x);
}
/* Performs a world-to-viewport transformation on the specified point (which
* is in integer format).
*/
static inline INT WINE_UNUSED INTERNAL_YWPTODP(DC *dc, INT x, INT y)
{
FLOAT_POINT floatPoint;
/* Perform operation with floating point */
floatPoint.x=(FLOAT)x;
floatPoint.y=(FLOAT)y;
INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
/* Round to integers */
return GDI_ROUND(floatPoint.y);
}
/* Performs a viewport-to-world transformation on the specified point (which
* is in integer format).
*/
static inline INT WINE_UNUSED INTERNAL_XDPTOWP(DC *dc, INT x, INT y)
{
FLOAT_POINT floatPoint;
/* Perform operation with floating point */
floatPoint.x=(FLOAT)x;
floatPoint.y=(FLOAT)y;
INTERNAL_DPTOLP_FLOAT(dc, &floatPoint);
/* Round to integers */
return GDI_ROUND(floatPoint.x);
}
/* Performs a viewport-to-world transformation on the specified point (which
* is in integer format).
*/
static inline INT WINE_UNUSED INTERNAL_YDPTOWP(DC *dc, INT x, INT y)
{
FLOAT_POINT floatPoint;
/* Perform operation with floating point */
floatPoint.x=(FLOAT)x;
floatPoint.y=(FLOAT)y;
INTERNAL_DPTOLP_FLOAT(dc, &floatPoint);
/* Round to integers */
return GDI_ROUND(floatPoint.y);
}
#define XDPTOLP(dc,x) \
(MulDiv(((x)-(dc)->vportOrgX), (dc)->wndExtX, (dc)->vportExtX) + (dc)->wndOrgX)
#define YDPTOLP(dc,y) \
(MulDiv(((y)-(dc)->vportOrgY), (dc)->wndExtY, (dc)->vportExtY) + (dc)->wndOrgY)
#define XLPTODP(dc,x) \
(MulDiv(((x)-(dc)->wndOrgX), (dc)->vportExtX, (dc)->wndExtX) + (dc)->vportOrgX)
#define YLPTODP(dc,y) \
(MulDiv(((y)-(dc)->wndOrgY), (dc)->vportExtY, (dc)->wndExtY) + (dc)->vportOrgY)
/* World -> Device size conversion */
/* Performs a world-to-viewport transformation on the specified width (which
* is in floating point format).
*/
static inline void WINE_UNUSED INTERNAL_XWSTODS_FLOAT(DC *dc, FLOAT *width)
{
/* Perform the transformation */
*width = *width * dc->xformWorld2Vport.eM11;
}
/* Performs a world-to-viewport transformation on the specified width (which
* is in integer format).
*/
static inline INT WINE_UNUSED INTERNAL_XWSTODS(DC *dc, INT width)
{
FLOAT floatWidth;
/* Perform operation with floating point */
floatWidth = (FLOAT)width;
INTERNAL_XWSTODS_FLOAT(dc, &floatWidth);
/* Round to integers */
return GDI_ROUND(floatWidth);
}
/* Performs a world-to-viewport transformation on the specified size (which
* is in floating point format).
*/
static inline void WINE_UNUSED INTERNAL_YWSTODS_FLOAT(DC *dc, FLOAT *height)
{
/* Perform the transformation */
*height = *height * dc->xformWorld2Vport.eM22;
}
/* Performs a world-to-viewport transformation on the specified size (which
* is in integer format).
*/
static inline INT WINE_UNUSED INTERNAL_YWSTODS(DC *dc, INT height)
{
FLOAT floatHeight;
/* Perform operation with floating point */
floatHeight = (FLOAT)height;
INTERNAL_YWSTODS_FLOAT(dc, &floatHeight);
/* Round to integers */
return GDI_ROUND(floatHeight);
}
/* Device -> World size conversion */
/* Performs a device to world transformation on the specified width (which
* is in floating point format).
*/
static inline void INTERNAL_XDSTOWS_FLOAT(DC *dc, FLOAT *width)
{
/* Perform the transformation */
*width = *width * dc->xformVport2World.eM11;
}
/* Performs a device to world transformation on the specified width (which
* is in integer format).
*/
static inline INT INTERNAL_XDSTOWS(DC *dc, INT width)
{
FLOAT floatWidth;
/* Perform operation with floating point */
floatWidth = (FLOAT)width;
INTERNAL_XDSTOWS_FLOAT(dc, &floatWidth);
/* Round to integers */
return GDI_ROUND(floatWidth);
}
/* Performs a device to world transformation on the specified size (which
* is in floating point format).
*/
static inline void INTERNAL_YDSTOWS_FLOAT(DC *dc, FLOAT *height)
{
/* Perform the transformation */
*height = *height * dc->xformVport2World.eM22;
}
/* Performs a device to world transformation on the specified size (which
* is in integer format).
*/
static inline INT INTERNAL_YDSTOWS(DC *dc, INT height)
{
FLOAT floatHeight;
/* Perform operation with floating point */
floatHeight = (FLOAT)height;
INTERNAL_YDSTOWS_FLOAT(dc, &floatHeight);
/* Round to integers */
return GDI_ROUND(floatHeight);
}
/* Device <-> logical size conversion */
#define XDSTOLS(dc,x) \
MulDiv((x), (dc)->wndExtX, (dc)->vportExtX)
#define YDSTOLS(dc,y) \
MulDiv((y), (dc)->wndExtY, (dc)->vportExtY)
#define XLSTODS(dc,x) \
MulDiv((x), (dc)->vportExtX, (dc)->wndExtX)
#define YLSTODS(dc,y) \
MulDiv((y), (dc)->vportExtY, (dc)->wndExtY)
/* GDI local heap */
extern BOOL GDI_Init(void);
extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ *, const struct gdi_obj_funcs *funcs );
extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
extern void *GDI_GetObjPtr( HGDIOBJ, WORD );
extern void GDI_ReleaseObj( HGDIOBJ );
extern void GDI_CheckNotLock(void);
extern const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name );
extern const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs );
extern void DRIVER_release_driver( const DC_FUNCTIONS *funcs );
extern BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size );
extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs );
extern DC * DC_GetDCPtr( HDC hdc );
extern DC * DC_GetDCUpdate( HDC hdc );
extern void DC_InitDC( DC * dc );
extern void DC_UpdateXforms( DC * dc );
/* objects/clipping.c */
extern void CLIPPING_UpdateGCRegion( DC * dc );
/* objects/enhmetafile.c */
extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk );
/* region.c */
extern HRGN REGION_CropRgn( HRGN hDst, HRGN hSrc, const RECT *lpRect, const POINT *lpPt );
extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y );
#define WINE_GGO_GRAY16_BITMAP 0x7f
#endif /* __WINE_GDI_H */
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