dlls/gdi32/gdi_private.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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_GDI_PRIVATE_H
  22 #define __WINE_GDI_PRIVATE_H
  23
  24 #include <math.h>
  25 #include <stdlib.h>
  26 #include <stdarg.h>
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "wine/gdi_driver.h"
  31
  32 /* Metafile defines */
  33 #define META_EOF 0x0000
  34 /* values of mtType in METAHEADER.  Note however that the disk image of a disk
  35    based metafile has mtType == 1 */
  36 #define METAFILE_MEMORY 1
  37 #define METAFILE_DISK   2
  38 #define MFHEADERSIZE (sizeof(METAHEADER))
  39 #define MFVERSION 0x300
  40
  41 typedef struct {
  42     EMR   emr;
  43     INT   nBreakExtra;
  44     INT   nBreakCount;
  45 } EMRSETTEXTJUSTIFICATION, *PEMRSETTEXTJUSTIFICATION;
  46
  47 /* extra stock object: default 1x1 bitmap for memory DCs */
  48 #define DEFAULT_BITMAP (STOCK_LAST+1)
  49
  50 struct gdi_obj_funcs
  51 {
  52     HGDIOBJ (*pSelectObject)( HGDIOBJ handle, HDC hdc );
  53     INT     (*pGetObjectA)( HGDIOBJ handle, INT count, LPVOID buffer );
  54     INT     (*pGetObjectW)( HGDIOBJ handle, INT count, LPVOID buffer );
  55     BOOL    (*pUnrealizeObject)( HGDIOBJ handle );
  56     BOOL    (*pDeleteObject)( HGDIOBJ handle );
  57 };
  58
  59 struct hdc_list
  60 {
  61     HDC hdc;
  62     struct hdc_list *next;
  63 };
  64
  65 typedef struct tagGDIOBJHDR
  66 {
  67     WORD        type;         /* object type (one of the OBJ_* constants) */
  68     WORD        system : 1;   /* system object flag */
  69     WORD        deleted : 1;  /* whether DeleteObject has been called on this object */
  70     DWORD       selcount;     /* number of times the object is selected in a DC */
  71     const struct gdi_obj_funcs *funcs;
  72     struct hdc_list *hdcs;
  73 } GDIOBJHDR;
  74
  75 /* Device functions for the Wine driver interface */
  76
  77 enum dib_info_flags
  78 {
  79     private_color_table = 1
  80 };
  81
  82 typedef struct
  83 {
  84     int bit_count, width, height;
  85     int stride; /* stride in bytes.  Will be -ve for bottom-up dibs (see bits). */
  86     void *bits; /* points to the top-left corner of the dib. */
  87     void *ptr_to_free;
  88
  89     DWORD red_mask, green_mask, blue_mask;
  90     int red_shift, green_shift, blue_shift;
  91     int red_len, green_len, blue_len;
  92
  93     RGBQUAD *color_table;
  94     DWORD color_table_size;
  95
  96     enum dib_info_flags flags;
  97
  98     const struct primitive_funcs *funcs;
  99 } dib_info;
 100
 101 typedef struct
 102 {
 103     DWORD count;
 104     DWORD dashes[16]; /* 16 is the maximum number for a PS_USERSTYLE pen */
 105     DWORD total_len;  /* total length of the dashes, should be multiplied by 2 if there are an odd number of dash lengths */
 106 } dash_pattern;
 107
 108 typedef struct
 109 {
 110     int left_in_dash;
 111     int cur_dash;
 112     BOOL mark;
 113 } dash_pos;
 114
 115 typedef struct
 116 {
 117     DWORD and;
 118     DWORD xor;
 119 } rop_mask;
 120
 121 typedef struct
 122 {
 123     void *and;
 124     void *xor;
 125 } rop_mask_bits;
 126
 127 typedef struct dibdrv_physdev
 128 {
 129     struct gdi_physdev dev;
 130     dib_info dib;
 131
 132     HRGN clip;
 133     DWORD defer;
 134
 135     /* pen */
 136     COLORREF pen_colorref;
 137     DWORD pen_color, pen_and, pen_xor;
 138     dash_pattern pen_pattern;
 139     dash_pos dash_pos;
 140     BOOL   (* pen_line)(struct dibdrv_physdev *pdev, POINT *start, POINT *end);
 141
 142     /* brush */
 143     UINT brush_style;
 144     UINT brush_hatch;
 145     INT brush_rop;   /* PatBlt, for example, can override the DC's rop2 */
 146     COLORREF brush_colorref;
 147     DWORD brush_color, brush_and, brush_xor;
 148     dib_info brush_dib;
 149     void *brush_and_bits, *brush_xor_bits;
 150     BOOL   (* brush_rects)(struct dibdrv_physdev *pdev, int num, RECT *rects);
 151
 152     /* background */
 153     DWORD bkgnd_color, bkgnd_and, bkgnd_xor;
 154 } dibdrv_physdev;
 155
 156 #define DEFER_FORMAT     1
 157 #define DEFER_PEN        2
 158 #define DEFER_BRUSH      4
 159
 160 typedef struct gdi_dc_funcs DC_FUNCTIONS;
 161
 162 /* It should not be necessary to access the contents of the GdiPath
 163  * structure directly; if you find that the exported functions don't
 164  * allow you to do what you want, then please place a new exported
 165  * function that does this job in path.c.
 166  */
 167 typedef enum tagGdiPathState
 168 {
 169    PATH_Null,
 170    PATH_Open,
 171    PATH_Closed
 172 } GdiPathState;
 173
 174 typedef struct tagGdiPath
 175 {
 176    GdiPathState state;
 177    POINT      *pPoints;
 178    BYTE         *pFlags;
 179    int          numEntriesUsed, numEntriesAllocated;
 180    BOOL       newStroke;
 181 } GdiPath;
 182
 183 typedef struct tagGdiFont GdiFont;
 184
 185 typedef struct tagDC
 186 {
 187     GDIOBJHDR    header;
 188     HDC          hSelf;            /* Handle to this DC */
 189     struct gdi_physdev nulldrv;    /* physdev for the null driver */
 190     struct dibdrv_physdev dibdrv;  /* physdev for the dib driver */
 191     PHYSDEV      physDev;         /* Physical device (driver-specific) */
 192     DWORD        thread;          /* thread owning the DC */
 193     LONG         refcount;        /* thread refcount */
 194     LONG         dirty;           /* dirty flag */
 195     INT          saveLevel;
 196     struct tagDC *saved_dc;
 197     DWORD_PTR    dwHookData;
 198     DCHOOKPROC   hookProc;         /* DC hook */
 199
 200     INT          wndOrgX;          /* Window origin */
 201     INT          wndOrgY;
 202     INT          wndExtX;          /* Window extent */
 203     INT          wndExtY;
 204     INT          vportOrgX;        /* Viewport origin */
 205     INT          vportOrgY;
 206     INT          vportExtX;        /* Viewport extent */
 207     INT          vportExtY;
 208     SIZE         virtual_res;      /* Initially HORZRES,VERTRES. Changed by SetVirtualResolution */
 209     SIZE         virtual_size;     /* Initially HORZSIZE,VERTSIZE. Changed by SetVirtualResolution */
 210     RECT         vis_rect;         /* visible rectangle in screen coords */
 211     FLOAT        miterLimit;
 212
 213     int           flags;
 214     DWORD         layout;
 215     HRGN          hClipRgn;      /* Clip region (may be 0) */
 216     HRGN          hMetaRgn;      /* Meta region (may be 0) */
 217     HRGN          hMetaClipRgn;  /* Intersection of meta and clip regions (may be 0) */
 218     HRGN          hVisRgn;       /* Visible region (must never be 0) */
 219     HPEN          hPen;
 220     HBRUSH        hBrush;
 221     HFONT         hFont;
 222     HBITMAP       hBitmap;
 223     HANDLE        hDevice;
 224     HPALETTE      hPalette;
 225
 226     GdiFont      *gdiFont;
 227     GdiPath       path;
 228
 229     UINT          font_code_page;
 230     WORD          ROPmode;
 231     WORD          polyFillMode;
 232     WORD          stretchBltMode;
 233     WORD          relAbsMode;
 234     WORD          backgroundMode;
 235     COLORREF      backgroundColor;
 236     COLORREF      textColor;
 237     COLORREF      dcBrushColor;
 238     COLORREF      dcPenColor;
 239     short         brushOrgX;
 240     short         brushOrgY;
 241
 242     DWORD         mapperFlags;       /* Font mapper flags */
 243     WORD          textAlign;         /* Text alignment from SetTextAlign() */
 244     INT           charExtra;         /* Spacing from SetTextCharacterExtra() */
 245     INT           breakExtra;        /* breakTotalExtra / breakCount */
 246     INT           breakRem;          /* breakTotalExtra % breakCount */
 247     INT           MapMode;
 248     INT           GraphicsMode;      /* Graphics mode */
 249     ABORTPROC     pAbortProc;        /* AbortProc for Printing */
 250     INT           CursPosX;          /* Current position */
 251     INT           CursPosY;
 252     INT           ArcDirection;
 253     XFORM         xformWorld2Wnd;    /* World-to-window transformation */
 254     XFORM         xformWorld2Vport;  /* World-to-viewport transformation */
 255     XFORM         xformVport2World;  /* Inverse of the above transformation */
 256     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
 257     RECT          BoundsRect;        /* Current bounding rect */
 258 } DC;
 259
 260   /* DC flags */
 261 #define DC_BOUNDS_ENABLE 0x0008   /* Bounding rectangle tracking is enabled */
 262 #define DC_BOUNDS_SET    0x0010   /* Bounding rectangle has been set */
 263
 264 /* Certain functions will do no further processing if the driver returns this.
 265    Used by mfdrv for example. */
 266 #define GDI_NO_MORE_WORK 2
 267
 268 /* Rounds a floating point number to integer. The world-to-viewport
 269  * transformation process is done in floating point internally. This function
 270  * is then used to round these coordinates to integer values.
 271  */
 272 static inline INT GDI_ROUND(double val)
 273 {
 274    return (int)floor(val + 0.5);
 275 }
 276
 277 #define GET_DC_PHYSDEV(dc,func) \
 278     get_physdev_entry_point( (dc)->physDev, FIELD_OFFSET(struct gdi_dc_funcs,func))
 279
 280 /* bitmap object */
 281
 282 typedef struct tagBITMAPOBJ
 283 {
 284     GDIOBJHDR           header;
 285     BITMAP              bitmap;
 286     SIZE                size;   /* For SetBitmapDimension() */
 287     const DC_FUNCTIONS *funcs; /* DC function table */
 288     /* For device-independent bitmaps: */
 289     DIBSECTION         *dib;
 290     RGBQUAD            *color_table;  /* DIB color table if <= 8bpp */
 291     UINT                nb_colors;    /* number of colors in table */
 292 } BITMAPOBJ;
 293
 294 /* bidi.c */
 295
 296 /* Wine_GCPW Flags */
 297 /* Directionality -
 298  * LOOSE means taking the directionality of the first strong character, if there is found one.
 299  * FORCE means the paragraph direction is forced. (RLE/LRE)
 300  */
 301 #define WINE_GCPW_FORCE_LTR 0
 302 #define WINE_GCPW_FORCE_RTL 1
 303 #define WINE_GCPW_LOOSE_LTR 2
 304 #define WINE_GCPW_LOOSE_RTL 3
 305 #define WINE_GCPW_DIR_MASK 3
 306 #define WINE_GCPW_LOOSE_MASK 2
 307
 308 extern BOOL BIDI_Reorder( HDC hDC, LPCWSTR lpString, INT uCount, DWORD dwFlags, DWORD dwWineGCP_Flags,
 309                           LPWSTR lpOutString, INT uCountOut, UINT *lpOrder, WORD **lpGlyphs, INT* cGlyphs ) DECLSPEC_HIDDEN;
 310
 311 /* bitmap.c */
 312 extern BOOL get_bitmap_image( HBITMAP hbitmap, BITMAPINFO *info, struct gdi_image_bits *bits ) DECLSPEC_HIDDEN;
 313 extern HBITMAP BITMAP_CopyBitmap( HBITMAP hbitmap ) DECLSPEC_HIDDEN;
 314 extern BOOL BITMAP_SetOwnerDC( HBITMAP hbitmap, PHYSDEV physdev ) DECLSPEC_HIDDEN;
 315
 316 /* clipping.c */
 317 extern int get_clip_box( DC *dc, RECT *rect ) DECLSPEC_HIDDEN;
 318 extern void CLIPPING_UpdateGCRegion( DC * dc ) DECLSPEC_HIDDEN;
 319
 320 /* Return the total clip region (if any) */
 321 static inline HRGN get_clip_region( DC * dc )
 322 {
 323     if (dc->hMetaClipRgn) return dc->hMetaClipRgn;
 324     if (dc->hMetaRgn) return dc->hMetaRgn;
 325     return dc->hClipRgn;
 326 }
 327
 328 /* dc.c */
 329 extern DC *alloc_dc_ptr( WORD magic ) DECLSPEC_HIDDEN;
 330 extern void free_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
 331 extern DC *get_dc_ptr( HDC hdc ) DECLSPEC_HIDDEN;
 332 extern void release_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
 333 extern void update_dc( DC *dc ) DECLSPEC_HIDDEN;
 334 extern void push_dc_driver( DC * dc, PHYSDEV physdev, const DC_FUNCTIONS *funcs ) DECLSPEC_HIDDEN;
 335 extern void pop_dc_driver( DC * dc, PHYSDEV physdev ) DECLSPEC_HIDDEN;
 336 extern void DC_InitDC( DC * dc ) DECLSPEC_HIDDEN;
 337 extern void DC_UpdateXforms( DC * dc ) DECLSPEC_HIDDEN;
 338
 339 /* dib.c */
 340 extern int bitmap_info_size( const BITMAPINFO * info, WORD coloruse ) DECLSPEC_HIDDEN;
 341 extern DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
 342                                  const BITMAPINFO *dst_info, void *dst_bits ) DECLSPEC_HIDDEN;
 343
 344
 345 /* driver.c */
 346 extern const DC_FUNCTIONS null_driver DECLSPEC_HIDDEN;
 347 extern const DC_FUNCTIONS dib_driver DECLSPEC_HIDDEN;
 348 extern const DC_FUNCTIONS *DRIVER_get_display_driver(void) DECLSPEC_HIDDEN;
 349 extern const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name ) DECLSPEC_HIDDEN;
 350 extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size ) DECLSPEC_HIDDEN;
 351
 352 /* enhmetafile.c */
 353 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk ) DECLSPEC_HIDDEN;
 354
 355 /* freetype.c */
 356
 357 /* Undocumented structure filled in by GdiRealizationInfo */
 358 typedef struct
 359 {
 360     DWORD flags;       /* 1 for bitmap fonts, 3 for scalable fonts */
 361     DWORD cache_num;   /* keeps incrementing - num of fonts that have been created allowing for caching?? */
 362     DWORD unknown2;    /* fixed for a given font - looks like it could be the order of the face in the font list or the order
 363                           in which the face was first rendered. */
 364 } realization_info_t;
 365
 366
 367 extern INT WineEngAddFontResourceEx(LPCWSTR, DWORD, PVOID) DECLSPEC_HIDDEN;
 368 extern HANDLE WineEngAddFontMemResourceEx(PVOID, DWORD, PVOID, LPDWORD) DECLSPEC_HIDDEN;
 369 extern GdiFont* WineEngCreateFontInstance(DC*, HFONT) DECLSPEC_HIDDEN;
 370 extern BOOL WineEngDestroyFontInstance(HFONT handle) DECLSPEC_HIDDEN;
 371 extern DWORD WineEngEnumFonts(LPLOGFONTW, FONTENUMPROCW, LPARAM) DECLSPEC_HIDDEN;
 372 extern BOOL WineEngGetCharABCWidths(GdiFont *font, UINT firstChar,
 373                                     UINT lastChar, LPABC buffer) DECLSPEC_HIDDEN;
 374 extern BOOL WineEngGetCharABCWidthsFloat(GdiFont *font, UINT firstChar,
 375                                          UINT lastChar, LPABCFLOAT buffer) DECLSPEC_HIDDEN;
 376 extern BOOL WineEngGetCharABCWidthsI(GdiFont *font, UINT firstChar,
 377                                     UINT count, LPWORD pgi, LPABC buffer) DECLSPEC_HIDDEN;
 378 extern BOOL WineEngGetCharWidth(GdiFont*, UINT, UINT, LPINT) DECLSPEC_HIDDEN;
 379 extern DWORD WineEngGetFontData(GdiFont*, DWORD, DWORD, LPVOID, DWORD) DECLSPEC_HIDDEN;
 380 extern DWORD WineEngGetFontUnicodeRanges(GdiFont *, LPGLYPHSET) DECLSPEC_HIDDEN;
 381 extern DWORD WineEngGetGlyphIndices(GdiFont *font, LPCWSTR lpstr, INT count,
 382                                     LPWORD pgi, DWORD flags) DECLSPEC_HIDDEN;
 383 extern DWORD WineEngGetGlyphOutline(GdiFont*, UINT glyph, UINT format,
 384                                     LPGLYPHMETRICS, DWORD buflen, LPVOID buf,
 385                                     const MAT2*) DECLSPEC_HIDDEN;
 386 extern DWORD WineEngGetKerningPairs(GdiFont*, DWORD, KERNINGPAIR *) DECLSPEC_HIDDEN;
 387 extern BOOL WineEngGetLinkedHFont(DC *dc, WCHAR c, HFONT *new_hfont, UINT *glyph) DECLSPEC_HIDDEN;
 388 extern UINT WineEngGetOutlineTextMetrics(GdiFont*, UINT, LPOUTLINETEXTMETRICW) DECLSPEC_HIDDEN;
 389 extern UINT WineEngGetTextCharsetInfo(GdiFont *font, LPFONTSIGNATURE fs, DWORD flags) DECLSPEC_HIDDEN;
 390 extern BOOL WineEngGetTextExtentExPoint(GdiFont*, LPCWSTR, INT, INT, LPINT, LPINT, LPSIZE) DECLSPEC_HIDDEN;
 391 extern BOOL WineEngGetTextExtentExPointI(GdiFont*, const WORD *, INT, INT, LPINT, LPINT, LPSIZE) DECLSPEC_HIDDEN;
 392 extern INT  WineEngGetTextFace(GdiFont*, INT, LPWSTR) DECLSPEC_HIDDEN;
 393 extern BOOL WineEngGetTextMetrics(GdiFont*, LPTEXTMETRICW) DECLSPEC_HIDDEN;
 394 extern BOOL WineEngFontIsLinked(GdiFont*) DECLSPEC_HIDDEN;
 395 extern BOOL WineEngInit(void) DECLSPEC_HIDDEN;
 396 extern BOOL WineEngRealizationInfo(GdiFont*, realization_info_t*) DECLSPEC_HIDDEN;
 397 extern BOOL WineEngRemoveFontResourceEx(LPCWSTR, DWORD, PVOID) DECLSPEC_HIDDEN;
 398
 399 /* gdiobj.c */
 400 extern HGDIOBJ alloc_gdi_handle( GDIOBJHDR *obj, WORD type, const struct gdi_obj_funcs *funcs ) DECLSPEC_HIDDEN;
 401 extern void *free_gdi_handle( HGDIOBJ handle ) DECLSPEC_HIDDEN;
 402 extern void *GDI_GetObjPtr( HGDIOBJ, WORD ) DECLSPEC_HIDDEN;
 403 extern void GDI_ReleaseObj( HGDIOBJ ) DECLSPEC_HIDDEN;
 404 extern void GDI_CheckNotLock(void) DECLSPEC_HIDDEN;
 405 extern HGDIOBJ GDI_inc_ref_count( HGDIOBJ handle ) DECLSPEC_HIDDEN;
 406 extern BOOL GDI_dec_ref_count( HGDIOBJ handle ) DECLSPEC_HIDDEN;
 407 extern BOOL GDI_hdc_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
 408 extern BOOL GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
 409
 410 /* metafile.c */
 411 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh) DECLSPEC_HIDDEN;
 412 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCVOID filename, BOOL unicode ) DECLSPEC_HIDDEN;
 413
 414 /* path.c */
 415
 416 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
 417 /* Returns TRUE if the specified path is in the open state, i.e. in the
 418  * state where points will be added to the path, or FALSE otherwise. This
 419  * function is implemented as a macro for performance reasons.
 420  */
 421
 422 extern void PATH_InitGdiPath(GdiPath *pPath) DECLSPEC_HIDDEN;
 423 extern void PATH_DestroyGdiPath(GdiPath *pPath) DECLSPEC_HIDDEN;
 424 extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest, const GdiPath *pPathSrc) DECLSPEC_HIDDEN;
 425
 426 extern BOOL PATH_MoveTo(DC *dc) DECLSPEC_HIDDEN;
 427 extern BOOL PATH_LineTo(DC *dc, INT x, INT y) DECLSPEC_HIDDEN;
 428 extern BOOL PATH_Rectangle(DC *dc, INT x1, INT y1, INT x2, INT y2) DECLSPEC_HIDDEN;
 429 extern BOOL PATH_ExtTextOut(DC *dc, INT x, INT y, UINT flags, const RECT *lprc,
 430                             LPCWSTR str, UINT count, const INT *dx) DECLSPEC_HIDDEN;
 431 extern BOOL PATH_Ellipse(DC *dc, INT x1, INT y1, INT x2, INT y2) DECLSPEC_HIDDEN;
 432 extern BOOL PATH_Arc(DC *dc, INT x1, INT y1, INT x2, INT y2,
 433                      INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines) DECLSPEC_HIDDEN;
 434 extern BOOL PATH_PolyBezierTo(DC *dc, const POINT *pt, DWORD cbCount) DECLSPEC_HIDDEN;
 435 extern BOOL PATH_PolyBezier(DC *dc, const POINT *pt, DWORD cbCount) DECLSPEC_HIDDEN;
 436 extern BOOL PATH_PolyDraw(DC *dc, const POINT *pts, const BYTE *types, DWORD cbCount) DECLSPEC_HIDDEN;
 437 extern BOOL PATH_PolylineTo(DC *dc, const POINT *pt, DWORD cbCount) DECLSPEC_HIDDEN;
 438 extern BOOL PATH_Polyline(DC *dc, const POINT *pt, DWORD cbCount) DECLSPEC_HIDDEN;
 439 extern BOOL PATH_Polygon(DC *dc, const POINT *pt, DWORD cbCount) DECLSPEC_HIDDEN;
 440 extern BOOL PATH_PolyPolyline(DC *dc, const POINT *pt, const DWORD *counts, DWORD polylines) DECLSPEC_HIDDEN;
 441 extern BOOL PATH_PolyPolygon(DC *dc, const POINT *pt, const INT *counts, UINT polygons) DECLSPEC_HIDDEN;
 442 extern BOOL PATH_RoundRect(DC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width, INT ell_height) DECLSPEC_HIDDEN;
 443
 444 /* painting.c */
 445 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut ) DECLSPEC_HIDDEN;
 446
 447 /* palette.c */
 448 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg) DECLSPEC_HIDDEN;
 449 extern UINT WINAPI GDIRealizePalette( HDC hdc ) DECLSPEC_HIDDEN;
 450 extern HPALETTE PALETTE_Init(void) DECLSPEC_HIDDEN;
 451
 452 /* region.c */
 453 extern INT mirror_region( HRGN dst, HRGN src, INT width ) DECLSPEC_HIDDEN;
 454 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y ) DECLSPEC_HIDDEN;
 455
 456 typedef struct
 457 {
 458     INT size;
 459     INT numRects;
 460     RECT *rects;
 461     RECT extents;
 462 } WINEREGION;
 463 extern const WINEREGION *get_wine_region(HRGN rgn) DECLSPEC_HIDDEN;
 464 static inline void release_wine_region(HRGN rgn)
 465 {
 466     GDI_ReleaseObj(rgn);
 467 }
 468
 469 /* null driver entry points */
 470 extern BOOL nulldrv_AbortPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 471 extern BOOL nulldrv_AngleArc( PHYSDEV dev, INT x, INT y, DWORD radius, FLOAT start, FLOAT sweep ) DECLSPEC_HIDDEN;
 472 extern BOOL nulldrv_ArcTo( PHYSDEV dev, INT left, INT top, INT right, INT bottom, INT xstart, INT ystart, INT xend, INT yend ) DECLSPEC_HIDDEN;
 473 extern BOOL nulldrv_BeginPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 474 extern BOOL nulldrv_CloseFigure( PHYSDEV dev ) DECLSPEC_HIDDEN;
 475 extern BOOL nulldrv_EndPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 476 extern INT  nulldrv_ExcludeClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom ) DECLSPEC_HIDDEN;
 477 extern INT  nulldrv_ExtSelectClipRgn( PHYSDEV dev, HRGN rgn, INT mode ) DECLSPEC_HIDDEN;
 478 extern BOOL nulldrv_FillPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 479 extern BOOL nulldrv_FillRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush ) DECLSPEC_HIDDEN;
 480 extern BOOL nulldrv_FlattenPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 481 extern BOOL nulldrv_FrameRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush, INT width, INT height ) DECLSPEC_HIDDEN;
 482 extern LONG nulldrv_GetBitmapBits( HBITMAP bitmap, void *bits, LONG size ) DECLSPEC_HIDDEN;
 483 extern DWORD nulldrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info, struct gdi_image_bits *bits, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
 484 extern COLORREF nulldrv_GetNearestColor( PHYSDEV dev, COLORREF color ) DECLSPEC_HIDDEN;
 485 extern INT  nulldrv_IntersectClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom ) DECLSPEC_HIDDEN;
 486 extern BOOL nulldrv_InvertRgn( PHYSDEV dev, HRGN rgn ) DECLSPEC_HIDDEN;
 487 extern BOOL nulldrv_ModifyWorldTransform( PHYSDEV dev, const XFORM *xform, DWORD mode ) DECLSPEC_HIDDEN;
 488 extern INT  nulldrv_OffsetClipRgn( PHYSDEV dev, INT x, INT y ) DECLSPEC_HIDDEN;
 489 extern BOOL nulldrv_OffsetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
 490 extern BOOL nulldrv_OffsetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
 491 extern BOOL nulldrv_PolyBezier( PHYSDEV dev, const POINT *points, DWORD count ) DECLSPEC_HIDDEN;
 492 extern BOOL nulldrv_PolyBezierTo( PHYSDEV dev, const POINT *points, DWORD count ) DECLSPEC_HIDDEN;
 493 extern BOOL nulldrv_PolyDraw( PHYSDEV dev, const POINT *points, const BYTE *types, DWORD count ) DECLSPEC_HIDDEN;
 494 extern BOOL nulldrv_PolylineTo( PHYSDEV dev, const POINT *points, INT count ) DECLSPEC_HIDDEN;
 495 extern DWORD nulldrv_PutImage( PHYSDEV dev, HBITMAP hbitmap, HRGN clip, BITMAPINFO *info,
 496                                const struct gdi_image_bits *bits, struct bitblt_coords *src,
 497                                struct bitblt_coords *dst, DWORD rop ) DECLSPEC_HIDDEN;
 498 extern BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level ) DECLSPEC_HIDDEN;
 499 extern INT  nulldrv_SaveDC( PHYSDEV dev ) DECLSPEC_HIDDEN;
 500 extern BOOL nulldrv_ScaleViewportExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size ) DECLSPEC_HIDDEN;
 501 extern BOOL nulldrv_ScaleWindowExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size ) DECLSPEC_HIDDEN;
 502 extern BOOL nulldrv_SelectClipPath( PHYSDEV dev, INT mode ) DECLSPEC_HIDDEN;
 503 extern INT  nulldrv_SetMapMode( PHYSDEV dev, INT mode ) DECLSPEC_HIDDEN;
 504 extern BOOL nulldrv_SetViewportExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size ) DECLSPEC_HIDDEN;
 505 extern BOOL nulldrv_SetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
 506 extern BOOL nulldrv_SetWindowExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size ) DECLSPEC_HIDDEN;
 507 extern BOOL nulldrv_SetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
 508 extern BOOL nulldrv_SetWorldTransform( PHYSDEV dev, const XFORM *xform ) DECLSPEC_HIDDEN;
 509 extern BOOL nulldrv_StretchBlt( PHYSDEV dst_dev, struct bitblt_coords *dst,
 510                                 PHYSDEV src_dev, struct bitblt_coords *src, DWORD rop ) DECLSPEC_HIDDEN;
 511 extern INT  nulldrv_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT heightDst,
 512                                    INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, const void *bits,
 513                                    const BITMAPINFO *info, UINT coloruse, DWORD rop ) DECLSPEC_HIDDEN;
 514 extern BOOL nulldrv_StrokeAndFillPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 515 extern BOOL nulldrv_StrokePath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 516 extern BOOL nulldrv_WidenPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
 517
 518 static inline DC *get_nulldrv_dc( PHYSDEV dev )
 519 {
 520     return CONTAINING_RECORD( dev, DC, nulldrv );
 521 }
 522
 523 /* Undocumented value for DIB's iUsage: Indicates a mono DIB w/o pal entries */
 524 #define DIB_PAL_MONO 2
 525
 526 BOOL WINAPI FontIsLinked(HDC);
 527
 528 BOOL WINAPI SetVirtualResolution(HDC hdc, DWORD horz_res, DWORD vert_res, DWORD horz_size, DWORD vert_size);
 529
 530 static inline BOOL is_rect_empty( const RECT *rect )
 531 {
 532     return (rect->left >= rect->right || rect->top >= rect->bottom);
 533 }
 534
 535 static inline BOOL intersect_rect( RECT *dst, const RECT *src1, const RECT *src2 )
 536 {
 537     dst->left   = max( src1->left, src2->left );
 538     dst->top    = max( src1->top, src2->top );
 539     dst->right  = min( src1->right, src2->right );
 540     dst->bottom = min( src1->bottom, src2->bottom );
 541     return !is_rect_empty( dst );
 542 }
 543
 544 static inline void offset_rect( RECT *rect, int offset_x, int offset_y )
 545 {
 546     rect->left   += offset_x;
 547     rect->top    += offset_y;
 548     rect->right  += offset_x;
 549     rect->bottom += offset_y;
 550 }
 551
 552 static inline int get_bitmap_stride( int width, int bpp )
 553 {
 554     return ((width * bpp + 15) >> 3) & ~1;
 555 }
 556
 557 static inline int get_dib_stride( int width, int bpp )
 558 {
 559     return ((width * bpp + 31) >> 3) & ~3;
 560 }
 561
 562 static inline int get_dib_image_size( const BITMAPINFO *info )
 563 {
 564     return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
 565         * abs( info->bmiHeader.biHeight );
 566 }
 567
 568 static inline int get_dib_num_of_colors( const BITMAPINFO *info )
 569 {
 570     if (info->bmiHeader.biClrUsed) return min( info->bmiHeader.biClrUsed, 256 );
 571     return info->bmiHeader.biBitCount > 8 ? 0 : 1 << info->bmiHeader.biBitCount;
 572 }
 573
 574 extern void free_heap_bits( struct gdi_image_bits *bits ) DECLSPEC_HIDDEN;
 575
 576 #endif /* __WINE_GDI_PRIVATE_H */