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 "path.h"
  28 #include <math.h>
  29
  30   /* GDI objects magic numbers */
  31 #define FIRST_MAGIC           0x4f47
  32 #define PEN_MAGIC             0x4f47
  33 #define BRUSH_MAGIC           0x4f48
  34 #define FONT_MAGIC            0x4f49
  35 #define PALETTE_MAGIC         0x4f4a
  36 #define BITMAP_MAGIC          0x4f4b
  37 #define REGION_MAGIC          0x4f4c
  38 #define DC_MAGIC              0x4f4d
  39 #define DISABLED_DC_MAGIC     0x4f4e
  40 #define META_DC_MAGIC         0x4f4f
  41 #define METAFILE_MAGIC        0x4f50
  42 #define METAFILE_DC_MAGIC     0x4f51
  43 #define ENHMETAFILE_MAGIC     0x4f52
  44 #define ENHMETAFILE_DC_MAGIC  0x4f53
  45 #define LAST_MAGIC            0x4f53
  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 typedef struct tagGdiFont *GdiFont;
  75
  76 typedef struct { int opaque; } *PHYSDEV;  /* PHYSDEV is an opaque pointer */
  77
  78 typedef struct tagDC
  79 {
  80     GDIOBJHDR    header;
  81     HDC          hSelf;            /* Handle to this DC */
  82     const struct tagDC_FUNCS *funcs; /* DC function table */
  83     PHYSDEV      physDev;         /* Physical device (driver-specific) */
  84     INT          saveLevel;
  85     DWORD        dwHookData;
  86     FARPROC16    hookProc;         /* the original SEGPTR ... */
  87     DCHOOKPROC   hookThunk;        /* ... and the thunk to call it */
  88
  89     INT          wndOrgX;          /* Window origin */
  90     INT          wndOrgY;
  91     INT          wndExtX;          /* Window extent */
  92     INT          wndExtY;
  93     INT          vportOrgX;        /* Viewport origin */
  94     INT          vportOrgY;
  95     INT          vportExtX;        /* Viewport extent */
  96     INT          vportExtY;
  97
  98     int           flags;
  99     HRGN16        hClipRgn;     /* Clip region (may be 0) */
 100     HRGN16        hVisRgn;      /* Visible region (must never be 0) */
 101     HRGN16        hGCClipRgn;   /* GC clip region (ClipRgn AND VisRgn) */
 102     HPEN16        hPen;
 103     HBRUSH16      hBrush;
 104     HFONT16       hFont;
 105     HBITMAP16     hBitmap;
 106     HANDLE16      hDevice;
 107     HPALETTE16    hPalette;
 108
 109     GdiFont       gdiFont;
 110     GdiPath       path;
 111
 112     WORD          ROPmode;
 113     WORD          polyFillMode;
 114     WORD          stretchBltMode;
 115     WORD          relAbsMode;
 116     WORD          backgroundMode;
 117     COLORREF      backgroundColor;
 118     COLORREF      textColor;
 119     short         brushOrgX;
 120     short         brushOrgY;
 121
 122     WORD          textAlign;         /* Text alignment from SetTextAlign() */
 123     short         charExtra;         /* Spacing from SetTextCharacterExtra() */
 124     short         breakTotalExtra;   /* Total extra space for justification */
 125     short         breakCount;        /* Break char. count */
 126     short         breakExtra;        /* breakTotalExtra / breakCount */
 127     short         breakRem;          /* breakTotalExtra % breakCount */
 128
 129     RECT          totalExtent;
 130     BYTE          bitsPerPixel;
 131
 132     INT           MapMode;
 133     INT           GraphicsMode;      /* Graphics mode */
 134     INT           DCOrgX;            /* DC origin */
 135     INT           DCOrgY;
 136     ABORTPROC     pAbortProc;        /* AbortProc for Printing */
 137     ABORTPROC16   pAbortProc16;
 138     INT           CursPosX;          /* Current position */
 139     INT           CursPosY;
 140     INT           ArcDirection;
 141     XFORM         xformWorld2Wnd;    /* World-to-window transformation */
 142     XFORM         xformWorld2Vport;  /* World-to-viewport transformation */
 143     XFORM         xformVport2World;  /* Inverse of the above transformation */
 144     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
 145 } DC;
 146
 147 /* Device functions for the Wine driver interface */
 148
 149 typedef INT (*DEVICEFONTENUMPROC)(LPENUMLOGFONTEXW,LPNEWTEXTMETRICEXW,DWORD,
 150                                   LPARAM);
 151
 152 typedef struct tagDC_FUNCS
 153 {
 154     INT      (*pAbortDoc)(PHYSDEV);
 155     BOOL     (*pAbortPath)(PHYSDEV);
 156     BOOL     (*pAngleArc)(PHYSDEV,INT,INT,DWORD,FLOAT,FLOAT);
 157     BOOL     (*pArc)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 158     BOOL     (*pArcTo)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 159     BOOL     (*pBeginPath)(PHYSDEV);
 160     BOOL     (*pBitBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,DWORD);
 161     INT      (*pChoosePixelFormat)(PHYSDEV,const PIXELFORMATDESCRIPTOR *);
 162     BOOL     (*pChord)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 163     BOOL     (*pCloseFigure)(PHYSDEV);
 164     BOOL     (*pCreateBitmap)(PHYSDEV,HBITMAP);
 165     BOOL     (*pCreateDC)(DC *,LPCSTR,LPCSTR,LPCSTR,const DEVMODEA*);
 166     HBITMAP  (*pCreateDIBSection)(PHYSDEV,BITMAPINFO *,UINT,LPVOID *,HANDLE,DWORD,DWORD);
 167     BOOL     (*pDeleteBitmap)(HBITMAP);
 168     BOOL     (*pDeleteDC)(PHYSDEV);
 169     INT      (*pDescribePixelFormat)(PHYSDEV,INT,UINT,PIXELFORMATDESCRIPTOR *);
 170     DWORD    (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
 171     BOOL     (*pEllipse)(PHYSDEV,INT,INT,INT,INT);
 172     INT      (*pEndDoc)(PHYSDEV);
 173     INT      (*pEndPage)(PHYSDEV);
 174     BOOL     (*pEndPath)(PHYSDEV);
 175     BOOL     (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,DEVICEFONTENUMPROC,LPARAM);
 176     INT      (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
 177     INT      (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 178     INT      (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
 179     BOOL     (*pExtFloodFill)(PHYSDEV,INT,INT,COLORREF,UINT);
 180     INT      (*pExtSelectClipRgn)(PHYSDEV,HRGN,INT);
 181     BOOL     (*pExtTextOut)(PHYSDEV,INT,INT,UINT,const RECT*,LPCWSTR,UINT,const INT*);
 182     BOOL     (*pFillPath)(PHYSDEV);
 183     BOOL     (*pFillRgn)(PHYSDEV,HRGN,HBRUSH);
 184     BOOL     (*pFlattenPath)(PHYSDEV);
 185     BOOL     (*pFrameRgn)(PHYSDEV,HRGN,HBRUSH,INT,INT);
 186     LONG     (*pGetBitmapBits)(HBITMAP,void*,LONG);
 187     BOOL     (*pGetCharWidth)(PHYSDEV,UINT,UINT,LPINT);
 188     BOOL     (*pGetDCOrgEx)(PHYSDEV,LPPOINT);
 189     UINT     (*pGetDIBColorTable)(PHYSDEV,UINT,UINT,RGBQUAD*);
 190     INT      (*pGetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPVOID,BITMAPINFO*,UINT);
 191     INT      (*pGetDeviceCaps)(PHYSDEV,INT);
 192     BOOL     (*pGetDeviceGammaRamp)(PHYSDEV,LPVOID);
 193     COLORREF (*pGetPixel)(PHYSDEV,INT,INT);
 194     INT      (*pGetPixelFormat)(PHYSDEV);
 195     BOOL     (*pGetTextExtentPoint)(PHYSDEV,LPCWSTR,INT,LPSIZE);
 196     BOOL     (*pGetTextMetrics)(PHYSDEV,TEXTMETRICW*);
 197     INT      (*pIntersectClipRect)(PHYSDEV,INT,INT,INT,INT);
 198     BOOL     (*pInvertRgn)(PHYSDEV,HRGN);
 199     BOOL     (*pLineTo)(PHYSDEV,INT,INT);
 200     BOOL     (*pMoveTo)(PHYSDEV,INT,INT);
 201     INT      (*pOffsetClipRgn)(PHYSDEV,INT,INT);
 202     BOOL     (*pOffsetViewportOrg)(PHYSDEV,INT,INT);
 203     BOOL     (*pOffsetWindowOrg)(PHYSDEV,INT,INT);
 204     BOOL     (*pPaintRgn)(PHYSDEV,HRGN);
 205     BOOL     (*pPatBlt)(PHYSDEV,INT,INT,INT,INT,DWORD);
 206     BOOL     (*pPie)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 207     BOOL     (*pPolyBezier)(PHYSDEV,const POINT*,DWORD);
 208     BOOL     (*pPolyBezierTo)(PHYSDEV,const POINT*,DWORD);
 209     BOOL     (*pPolyDraw)(PHYSDEV,const POINT*,const BYTE *,DWORD);
 210     BOOL     (*pPolyPolygon)(PHYSDEV,const POINT*,const INT*,UINT);
 211     BOOL     (*pPolyPolyline)(PHYSDEV,const POINT*,const DWORD*,DWORD);
 212     BOOL     (*pPolygon)(PHYSDEV,const POINT*,INT);
 213     BOOL     (*pPolyline)(PHYSDEV,const POINT*,INT);
 214     BOOL     (*pPolylineTo)(PHYSDEV,const POINT*,INT);
 215     UINT     (*pRealizePalette)(PHYSDEV);
 216     BOOL     (*pRectangle)(PHYSDEV,INT,INT,INT,INT);
 217     HDC      (*pResetDC)(PHYSDEV,const DEVMODEA*);
 218     BOOL     (*pRestoreDC)(PHYSDEV,INT);
 219     BOOL     (*pRoundRect)(PHYSDEV,INT,INT,INT,INT,INT,INT);
 220     INT      (*pSaveDC)(PHYSDEV);
 221     BOOL     (*pScaleViewportExt)(PHYSDEV,INT,INT,INT,INT);
 222     BOOL     (*pScaleWindowExt)(PHYSDEV,INT,INT,INT,INT);
 223     HBITMAP  (*pSelectBitmap)(PHYSDEV,HBITMAP);
 224     HBRUSH   (*pSelectBrush)(PHYSDEV,HBRUSH);
 225     BOOL     (*pSelectClipPath)(PHYSDEV,INT);
 226     HFONT    (*pSelectFont)(PHYSDEV,HFONT);
 227     HPALETTE (*pSelectPalette)(PHYSDEV,HPALETTE,BOOL);
 228     HPEN     (*pSelectPen)(PHYSDEV,HPEN);
 229     LONG     (*pSetBitmapBits)(HBITMAP,const void*,LONG);
 230     COLORREF (*pSetBkColor)(PHYSDEV,COLORREF);
 231     INT      (*pSetBkMode)(PHYSDEV,INT);
 232     UINT     (*pSetDIBColorTable)(PHYSDEV,UINT,UINT,const RGBQUAD*);
 233     INT      (*pSetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
 234     INT      (*pSetDIBitsToDevice)(PHYSDEV,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,LPCVOID,
 235                                    const BITMAPINFO*,UINT);
 236     VOID     (*pSetDeviceClipping)(PHYSDEV,HRGN);
 237     BOOL     (*pSetDeviceGammaRamp)(PHYSDEV,LPVOID);
 238     INT      (*pSetMapMode)(PHYSDEV,INT);
 239     DWORD    (*pSetMapperFlags)(PHYSDEV,DWORD);
 240     COLORREF (*pSetPixel)(PHYSDEV,INT,INT,COLORREF);
 241     BOOL     (*pSetPixelFormat)(PHYSDEV,INT,const PIXELFORMATDESCRIPTOR *);
 242     INT      (*pSetPolyFillMode)(PHYSDEV,INT);
 243     INT      (*pSetROP2)(PHYSDEV,INT);
 244     INT      (*pSetRelAbs)(PHYSDEV,INT);
 245     INT      (*pSetStretchBltMode)(PHYSDEV,INT);
 246     UINT     (*pSetTextAlign)(PHYSDEV,UINT);
 247     INT      (*pSetTextCharacterExtra)(PHYSDEV,INT);
 248     DWORD    (*pSetTextColor)(PHYSDEV,DWORD);
 249     INT      (*pSetTextJustification)(PHYSDEV,INT,INT);
 250     BOOL     (*pSetViewportExt)(PHYSDEV,INT,INT);
 251     BOOL     (*pSetViewportOrg)(PHYSDEV,INT,INT);
 252     BOOL     (*pSetWindowExt)(PHYSDEV,INT,INT);
 253     BOOL     (*pSetWindowOrg)(PHYSDEV,INT,INT);
 254     INT      (*pStartDoc)(PHYSDEV,const DOCINFOA*);
 255     INT      (*pStartPage)(PHYSDEV);
 256     BOOL     (*pStretchBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,DWORD);
 257     INT      (*pStretchDIBits)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT,const void *,
 258                                const BITMAPINFO*,UINT,DWORD);
 259     BOOL     (*pStrokeAndFillPath)(PHYSDEV);
 260     BOOL     (*pStrokePath)(PHYSDEV);
 261     BOOL     (*pSwapBuffers)(PHYSDEV);
 262     BOOL     (*pWidenPath)(PHYSDEV);
 263 } DC_FUNCTIONS;
 264
 265   /* DC hook codes */
 266 #define DCHC_INVALIDVISRGN      0x0001
 267 #define DCHC_DELETEDC           0x0002
 268
 269 #define DCHF_INVALIDATEVISRGN   0x0001
 270 #define DCHF_VALIDATEVISRGN     0x0002
 271
 272   /* DC flags */
 273 #define DC_MEMORY     0x0001   /* It is a memory DC */
 274 #define DC_SAVED      0x0002   /* It is a saved DC */
 275 #define DC_DIRTY      0x0004   /* hVisRgn has to be updated */
 276 #define DC_THUNKHOOK  0x0008   /* DC hook is in the 16-bit code */
 277
 278 #define GDI_HEAP_SIZE 0xffe0
 279
 280 /* extra stock object: default 1x1 bitmap for memory DCs */
 281 #define DEFAULT_BITMAP (STOCK_LAST+1)
 282
 283   /* Device <-> logical coords conversion */
 284
 285 /* A floating point version of the POINT structure */
 286 typedef struct tagFLOAT_POINT
 287 {
 288    FLOAT x, y;
 289 } FLOAT_POINT;
 290
 291 /* Rounds a floating point number to integer. The world-to-viewport
 292  * transformation process is done in floating point internally. This function
 293  * is then used to round these coordinates to integer values.
 294  */
 295 static inline INT WINE_UNUSED GDI_ROUND(FLOAT val)
 296 {
 297    return (int)floor(val + 0.5);
 298 }
 299
 300 /* Performs a viewport-to-world transformation on the specified point (which
 301  * is in floating point format). Returns TRUE if successful, else FALSE.
 302  */
 303 static inline BOOL WINE_UNUSED INTERNAL_DPTOLP_FLOAT(DC *dc, FLOAT_POINT *point)
 304 {
 305     FLOAT x, y;
 306
 307     /* Check that the viewport-to-world transformation is valid */
 308     if (!dc->vport2WorldValid)
 309         return FALSE;
 310
 311     /* Perform the transformation */
 312     x = point->x;
 313     y = point->y;
 314     point->x = x * dc->xformVport2World.eM11 +
 315                y * dc->xformVport2World.eM21 +
 316                dc->xformVport2World.eDx;
 317     point->y = x * dc->xformVport2World.eM12 +
 318                y * dc->xformVport2World.eM22 +
 319                dc->xformVport2World.eDy;
 320
 321     return TRUE;
 322 }
 323
 324 /* Performs a viewport-to-world transformation on the specified point (which
 325  * is in integer format). Returns TRUE if successful, else FALSE.
 326  */
 327 static inline BOOL WINE_UNUSED INTERNAL_DPTOLP(DC *dc, LPPOINT point)
 328 {
 329     FLOAT_POINT floatPoint;
 330
 331     /* Perform operation with floating point */
 332     floatPoint.x=(FLOAT)point->x;
 333     floatPoint.y=(FLOAT)point->y;
 334     if (!INTERNAL_DPTOLP_FLOAT(dc, &floatPoint))
 335         return FALSE;
 336
 337     /* Round to integers */
 338     point->x = GDI_ROUND(floatPoint.x);
 339     point->y = GDI_ROUND(floatPoint.y);
 340
 341     return TRUE;
 342 }
 343
 344 /* Performs a world-to-viewport transformation on the specified point (which
 345  * is in floating point format).
 346  */
 347 static inline void WINE_UNUSED INTERNAL_LPTODP_FLOAT(DC *dc, FLOAT_POINT *point)
 348 {
 349     FLOAT x, y;
 350
 351     /* Perform the transformation */
 352     x = point->x;
 353     y = point->y;
 354     point->x = x * dc->xformWorld2Vport.eM11 +
 355                y * dc->xformWorld2Vport.eM21 +
 356                dc->xformWorld2Vport.eDx;
 357     point->y = x * dc->xformWorld2Vport.eM12 +
 358                y * dc->xformWorld2Vport.eM22 +
 359                dc->xformWorld2Vport.eDy;
 360 }
 361
 362 /* Performs a world-to-viewport transformation on the specified point (which
 363  * is in integer format).
 364  */
 365 static inline void WINE_UNUSED INTERNAL_LPTODP(DC *dc, LPPOINT point)
 366 {
 367     FLOAT_POINT floatPoint;
 368
 369     /* Perform operation with floating point */
 370     floatPoint.x=(FLOAT)point->x;
 371     floatPoint.y=(FLOAT)point->y;
 372     INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
 373
 374     /* Round to integers */
 375     point->x = GDI_ROUND(floatPoint.x);
 376     point->y = GDI_ROUND(floatPoint.y);
 377 }
 378
 379
 380 /* Performs a world-to-viewport transformation on the specified point (which
 381  * is in integer format).
 382  */
 383 static inline INT WINE_UNUSED INTERNAL_XWPTODP(DC *dc, INT x, INT y)
 384 {
 385     FLOAT_POINT floatPoint;
 386
 387     /* Perform operation with floating point */
 388     floatPoint.x=(FLOAT)x;
 389     floatPoint.y=(FLOAT)y;
 390     INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
 391
 392     /* Round to integers */
 393     return GDI_ROUND(floatPoint.x);
 394 }
 395
 396 /* Performs a world-to-viewport transformation on the specified point (which
 397  * is in integer format).
 398  */
 399 static inline INT WINE_UNUSED INTERNAL_YWPTODP(DC *dc, INT x, INT y)
 400 {
 401     FLOAT_POINT floatPoint;
 402
 403     /* Perform operation with floating point */
 404     floatPoint.x=(FLOAT)x;
 405     floatPoint.y=(FLOAT)y;
 406     INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
 407
 408     /* Round to integers */
 409     return GDI_ROUND(floatPoint.y);
 410 }
 411
 412
 413 /* Performs a viewport-to-world transformation on the specified point (which
 414  * is in integer format).
 415  */
 416 static inline INT WINE_UNUSED INTERNAL_XDPTOWP(DC *dc, INT x, INT y)
 417 {
 418     FLOAT_POINT floatPoint;
 419
 420     /* Perform operation with floating point */
 421     floatPoint.x=(FLOAT)x;
 422     floatPoint.y=(FLOAT)y;
 423     INTERNAL_DPTOLP_FLOAT(dc, &floatPoint);
 424
 425     /* Round to integers */
 426     return GDI_ROUND(floatPoint.x);
 427 }
 428
 429 /* Performs a viewport-to-world transformation on the specified point (which
 430  * is in integer format).
 431  */
 432 static inline INT WINE_UNUSED INTERNAL_YDPTOWP(DC *dc, INT x, INT y)
 433 {
 434     FLOAT_POINT floatPoint;
 435
 436     /* Perform operation with floating point */
 437     floatPoint.x=(FLOAT)x;
 438     floatPoint.y=(FLOAT)y;
 439     INTERNAL_DPTOLP_FLOAT(dc, &floatPoint);
 440
 441     /* Round to integers */
 442     return GDI_ROUND(floatPoint.y);
 443 }
 444
 445
 446 #define XDPTOLP(dc,x) \
 447     (MulDiv(((x)-(dc)->vportOrgX), (dc)->wndExtX, (dc)->vportExtX) + (dc)->wndOrgX)
 448 #define YDPTOLP(dc,y) \
 449     (MulDiv(((y)-(dc)->vportOrgY), (dc)->wndExtY, (dc)->vportExtY) + (dc)->wndOrgY)
 450 #define XLPTODP(dc,x) \
 451     (MulDiv(((x)-(dc)->wndOrgX), (dc)->vportExtX, (dc)->wndExtX) + (dc)->vportOrgX)
 452 #define YLPTODP(dc,y) \
 453     (MulDiv(((y)-(dc)->wndOrgY), (dc)->vportExtY, (dc)->wndExtY) + (dc)->vportOrgY)
 454
 455
 456
 457   /* World -> Device size conversion */
 458
 459 /* Performs a world-to-viewport transformation on the specified width (which
 460  * is in floating point format).
 461  */
 462 static inline void WINE_UNUSED INTERNAL_XWSTODS_FLOAT(DC *dc, FLOAT *width)
 463 {
 464     /* Perform the transformation */
 465     *width = *width * dc->xformWorld2Vport.eM11;
 466 }
 467
 468 /* Performs a world-to-viewport transformation on the specified width (which
 469  * is in integer format).
 470  */
 471 static inline INT WINE_UNUSED INTERNAL_XWSTODS(DC *dc, INT width)
 472 {
 473     FLOAT floatWidth;
 474
 475     /* Perform operation with floating point */
 476     floatWidth = (FLOAT)width;
 477     INTERNAL_XWSTODS_FLOAT(dc, &floatWidth);
 478
 479     /* Round to integers */
 480     return GDI_ROUND(floatWidth);
 481 }
 482
 483
 484 /* Performs a world-to-viewport transformation on the specified size (which
 485  * is in floating point format).
 486  */
 487 static inline void WINE_UNUSED INTERNAL_YWSTODS_FLOAT(DC *dc, FLOAT *height)
 488 {
 489     /* Perform the transformation */
 490     *height = *height * dc->xformWorld2Vport.eM22;
 491 }
 492
 493 /* Performs a world-to-viewport transformation on the specified size (which
 494  * is in integer format).
 495  */
 496 static inline INT WINE_UNUSED INTERNAL_YWSTODS(DC *dc, INT height)
 497 {
 498     FLOAT floatHeight;
 499
 500     /* Perform operation with floating point */
 501     floatHeight = (FLOAT)height;
 502     INTERNAL_YWSTODS_FLOAT(dc, &floatHeight);
 503
 504     /* Round to integers */
 505     return GDI_ROUND(floatHeight);
 506 }
 507
 508
 509   /* Device -> World size conversion */
 510
 511 /* Performs a device to world transformation on the specified width (which
 512  * is in floating point format).
 513  */
 514 static inline void INTERNAL_XDSTOWS_FLOAT(DC *dc, FLOAT *width)
 515 {
 516     /* Perform the transformation */
 517     *width = *width * dc->xformVport2World.eM11;
 518 }
 519
 520 /* Performs a device to world transformation on the specified width (which
 521  * is in integer format).
 522  */
 523 static inline INT INTERNAL_XDSTOWS(DC *dc, INT width)
 524 {
 525     FLOAT floatWidth;
 526
 527     /* Perform operation with floating point */
 528     floatWidth = (FLOAT)width;
 529     INTERNAL_XDSTOWS_FLOAT(dc, &floatWidth);
 530
 531     /* Round to integers */
 532     return GDI_ROUND(floatWidth);
 533 }
 534
 535
 536 /* Performs a device to world transformation on the specified size (which
 537  * is in floating point format).
 538  */
 539 static inline void INTERNAL_YDSTOWS_FLOAT(DC *dc, FLOAT *height)
 540 {
 541     /* Perform the transformation */
 542     *height = *height * dc->xformVport2World.eM22;
 543 }
 544
 545 /* Performs a device to world transformation on the specified size (which
 546  * is in integer format).
 547  */
 548 static inline INT INTERNAL_YDSTOWS(DC *dc, INT height)
 549 {
 550     FLOAT floatHeight;
 551
 552     /* Perform operation with floating point */
 553     floatHeight = (FLOAT)height;
 554     INTERNAL_YDSTOWS_FLOAT(dc, &floatHeight);
 555
 556     /* Round to integers */
 557     return GDI_ROUND(floatHeight);
 558 }
 559
 560
 561   /* Device <-> logical size conversion */
 562
 563 #define XDSTOLS(dc,x) \
 564     MulDiv((x), (dc)->wndExtX, (dc)->vportExtX)
 565 #define YDSTOLS(dc,y) \
 566     MulDiv((y), (dc)->wndExtY, (dc)->vportExtY)
 567 #define XLSTODS(dc,x) \
 568     MulDiv((x), (dc)->vportExtX, (dc)->wndExtX)
 569 #define YLSTODS(dc,y) \
 570     MulDiv((y), (dc)->vportExtY, (dc)->wndExtY)
 571
 572   /* GDI local heap */
 573
 574 extern BOOL GDI_Init(void);
 575 extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ *, const struct gdi_obj_funcs *funcs );
 576 extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
 577 extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
 578 extern void *GDI_GetObjPtr( HGDIOBJ, WORD );
 579 extern void GDI_ReleaseObj( HGDIOBJ );
 580 extern void GDI_CheckNotLock(void);
 581
 582 extern const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name );
 583 extern const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs );
 584 extern void DRIVER_release_driver( const DC_FUNCTIONS *funcs );
 585 extern BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size );
 586
 587 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
 588
 589 extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs );
 590 extern DC * DC_GetDCPtr( HDC hdc );
 591 extern DC * DC_GetDCUpdate( HDC hdc );
 592 extern void DC_InitDC( DC * dc );
 593 extern void DC_UpdateXforms( DC * dc );
 594
 595 /* objects/clipping.c */
 596 extern void CLIPPING_UpdateGCRegion( DC * dc );
 597
 598 /* objects/enhmetafile.c */
 599 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk );
 600
 601 /* region.c */
 602 extern HRGN REGION_CropRgn( HRGN hDst, HRGN hSrc, const RECT *lpRect, const POINT *lpPt );
 603 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y );
 604
 605 #define WINE_GGO_GRAY16_BITMAP 0x7f
 606
 607 #endif  /* __WINE_GDI_H */