gdi32: Add a small rectangle buffer to reduce memory allocation.
[wine.git] / dlls / gdi32 / gdi_private.h
blobcbe66a8e77099080f4a5161d1200d80cb56c8aba
1 /*
2 * GDI definitions
4 * Copyright 1993 Alexandre Julliard
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.
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.
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
21 #ifndef __WINE_GDI_PRIVATE_H
22 #define __WINE_GDI_PRIVATE_H
24 #include <limits.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <stdarg.h>
28 #include "windef.h"
29 #include "winbase.h"
30 #include "wingdi.h"
31 #include "wine/gdi_driver.h"
33 /* Metafile defines */
34 #define META_EOF 0x0000
35 /* values of mtType in METAHEADER. Note however that the disk image of a disk
36 based metafile has mtType == 1 */
37 #define METAFILE_MEMORY 1
38 #define METAFILE_DISK 2
39 #define MFHEADERSIZE (sizeof(METAHEADER))
40 #define MFVERSION 0x300
42 typedef struct {
43 EMR emr;
44 INT nBreakExtra;
45 INT nBreakCount;
46 } EMRSETTEXTJUSTIFICATION, *PEMRSETTEXTJUSTIFICATION;
48 /* extra stock object: default 1x1 bitmap for memory DCs */
49 #define DEFAULT_BITMAP (STOCK_LAST+1)
51 struct gdi_obj_funcs
53 HGDIOBJ (*pSelectObject)( HGDIOBJ handle, HDC hdc );
54 INT (*pGetObjectA)( HGDIOBJ handle, INT count, LPVOID buffer );
55 INT (*pGetObjectW)( HGDIOBJ handle, INT count, LPVOID buffer );
56 BOOL (*pUnrealizeObject)( HGDIOBJ handle );
57 BOOL (*pDeleteObject)( HGDIOBJ handle );
60 typedef struct tagDC
62 HDC hSelf; /* Handle to this DC */
63 struct gdi_physdev nulldrv; /* physdev for the null driver */
64 PHYSDEV physDev; /* current top of the physdev stack */
65 DWORD thread; /* thread owning the DC */
66 LONG refcount; /* thread refcount */
67 LONG dirty; /* dirty flag */
68 INT saveLevel;
69 struct tagDC *saved_dc;
70 DWORD_PTR dwHookData;
71 DCHOOKPROC hookProc; /* DC hook */
72 BOOL bounds_enabled:1; /* bounds tracking is enabled */
73 BOOL path_open:1; /* path is currently open (only for saved DCs) */
75 INT wndOrgX; /* Window origin */
76 INT wndOrgY;
77 INT wndExtX; /* Window extent */
78 INT wndExtY;
79 INT vportOrgX; /* Viewport origin */
80 INT vportOrgY;
81 INT vportExtX; /* Viewport extent */
82 INT vportExtY;
83 SIZE virtual_res; /* Initially HORZRES,VERTRES. Changed by SetVirtualResolution */
84 SIZE virtual_size; /* Initially HORZSIZE,VERTSIZE. Changed by SetVirtualResolution */
85 RECT vis_rect; /* visible rectangle in screen coords */
86 RECT device_rect; /* rectangle for the whole device */
87 int pixel_format; /* pixel format (for memory DCs) */
88 UINT aa_flags; /* anti-aliasing flags to pass to GetGlyphOutline for current font */
89 FLOAT miterLimit;
91 int flags;
92 DWORD layout;
93 HRGN hClipRgn; /* Clip region */
94 HRGN hMetaRgn; /* Meta region */
95 HRGN hVisRgn; /* Visible region */
96 HRGN region; /* Total DC region (intersection of clip and visible) */
97 HPEN hPen;
98 HBRUSH hBrush;
99 HFONT hFont;
100 HBITMAP hBitmap;
101 HPALETTE hPalette;
103 struct gdi_path *path;
105 UINT font_code_page;
106 WORD ROPmode;
107 WORD polyFillMode;
108 WORD stretchBltMode;
109 WORD relAbsMode;
110 WORD backgroundMode;
111 COLORREF backgroundColor;
112 COLORREF textColor;
113 COLORREF dcBrushColor;
114 COLORREF dcPenColor;
115 short brushOrgX;
116 short brushOrgY;
118 DWORD mapperFlags; /* Font mapper flags */
119 WORD textAlign; /* Text alignment from SetTextAlign() */
120 INT charExtra; /* Spacing from SetTextCharacterExtra() */
121 INT breakExtra; /* breakTotalExtra / breakCount */
122 INT breakRem; /* breakTotalExtra % breakCount */
123 INT MapMode;
124 INT GraphicsMode; /* Graphics mode */
125 ABORTPROC pAbortProc; /* AbortProc for Printing */
126 INT CursPosX; /* Current position */
127 INT CursPosY;
128 INT ArcDirection;
129 XFORM xformWorld2Wnd; /* World-to-window transformation */
130 XFORM xformWorld2Vport; /* World-to-viewport transformation */
131 XFORM xformVport2World; /* Inverse of the above transformation */
132 BOOL vport2WorldValid; /* Is xformVport2World valid? */
133 RECT bounds; /* Current bounding rect */
134 } DC;
136 /* Certain functions will do no further processing if the driver returns this.
137 Used by mfdrv for example. */
138 #define GDI_NO_MORE_WORK 2
140 /* Rounds a floating point number to integer. The world-to-viewport
141 * transformation process is done in floating point internally. This function
142 * is then used to round these coordinates to integer values.
144 static inline INT GDI_ROUND(double val)
146 return (int)floor(val + 0.5);
149 #define GET_DC_PHYSDEV(dc,func) \
150 get_physdev_entry_point( (dc)->physDev, FIELD_OFFSET(struct gdi_dc_funcs,func))
152 static inline PHYSDEV pop_dc_driver( DC *dc, const struct gdi_dc_funcs *funcs )
154 PHYSDEV dev, *pdev = &dc->physDev;
155 while (*pdev && (*pdev)->funcs != funcs) pdev = &(*pdev)->next;
156 if (!*pdev) return NULL;
157 dev = *pdev;
158 *pdev = dev->next;
159 return dev;
162 static inline PHYSDEV find_dc_driver( DC *dc, const struct gdi_dc_funcs *funcs )
164 PHYSDEV dev;
166 for (dev = dc->physDev; dev; dev = dev->next) if (dev->funcs == funcs) return dev;
167 return NULL;
170 /* bitmap object */
172 typedef struct tagBITMAPOBJ
174 DIBSECTION dib;
175 SIZE size; /* For SetBitmapDimension() */
176 RGBQUAD *color_table; /* DIB color table if <= 8bpp (always 1 << bpp in size) */
177 } BITMAPOBJ;
179 static inline BOOL is_bitmapobj_dib( const BITMAPOBJ *bmp )
181 return bmp->dib.dsBmih.biSize != 0;
184 /* bidi.c */
186 /* Wine_GCPW Flags */
187 /* Directionality -
188 * LOOSE means taking the directionality of the first strong character, if there is found one.
189 * FORCE means the paragraph direction is forced. (RLE/LRE)
191 #define WINE_GCPW_FORCE_LTR 0
192 #define WINE_GCPW_FORCE_RTL 1
193 #define WINE_GCPW_LOOSE_LTR 2
194 #define WINE_GCPW_LOOSE_RTL 3
195 #define WINE_GCPW_DIR_MASK 3
196 #define WINE_GCPW_LOOSE_MASK 2
198 extern BOOL BIDI_Reorder( HDC hDC, LPCWSTR lpString, INT uCount, DWORD dwFlags, DWORD dwWineGCP_Flags,
199 LPWSTR lpOutString, INT uCountOut, UINT *lpOrder, WORD **lpGlyphs, INT* cGlyphs ) DECLSPEC_HIDDEN;
201 /* bitblt.c */
202 extern DWORD convert_bits( const BITMAPINFO *src_info, struct bitblt_coords *src,
203 BITMAPINFO *dst_info, struct gdi_image_bits *bits ) DECLSPEC_HIDDEN;
204 extern BOOL intersect_vis_rectangles( struct bitblt_coords *dst, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
205 extern DWORD stretch_bits( const BITMAPINFO *src_info, struct bitblt_coords *src,
206 BITMAPINFO *dst_info, struct bitblt_coords *dst,
207 struct gdi_image_bits *bits, int mode ) DECLSPEC_HIDDEN;
208 extern void get_mono_dc_colors( HDC hdc, BITMAPINFO *info, int count ) DECLSPEC_HIDDEN;
210 /* brush.c */
211 extern BOOL store_brush_pattern( LOGBRUSH *brush, struct brush_pattern *pattern ) DECLSPEC_HIDDEN;
212 extern void free_brush_pattern( struct brush_pattern *pattern ) DECLSPEC_HIDDEN;
213 extern BOOL get_brush_bitmap_info( HBRUSH handle, BITMAPINFO *info, void **bits, UINT *usage ) DECLSPEC_HIDDEN;
215 /* clipping.c */
216 extern BOOL clip_device_rect( DC *dc, RECT *dst, const RECT *src ) DECLSPEC_HIDDEN;
217 extern BOOL clip_visrect( DC *dc, RECT *dst, const RECT *src ) DECLSPEC_HIDDEN;
218 extern void update_dc_clipping( DC * dc ) DECLSPEC_HIDDEN;
220 /* Return the total DC region (if any) */
221 static inline HRGN get_dc_region( DC *dc )
223 if (dc->region) return dc->region;
224 if (dc->hVisRgn) return dc->hVisRgn;
225 if (dc->hClipRgn) return dc->hClipRgn;
226 return dc->hMetaRgn;
229 /* dc.c */
230 extern DC *alloc_dc_ptr( WORD magic ) DECLSPEC_HIDDEN;
231 extern void free_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
232 extern DC *get_dc_ptr( HDC hdc ) DECLSPEC_HIDDEN;
233 extern void release_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
234 extern void update_dc( DC *dc ) DECLSPEC_HIDDEN;
235 extern void DC_InitDC( DC * dc ) DECLSPEC_HIDDEN;
236 extern void DC_UpdateXforms( DC * dc ) DECLSPEC_HIDDEN;
238 /* dib.c */
239 extern int bitmap_info_size( const BITMAPINFO * info, WORD coloruse ) DECLSPEC_HIDDEN;
240 extern BOOL fill_color_table_from_pal_colors( BITMAPINFO *info, HDC hdc ) DECLSPEC_HIDDEN;
241 extern const RGBQUAD *get_default_color_table( int bpp ) DECLSPEC_HIDDEN;
242 extern void fill_default_color_table( BITMAPINFO *info ) DECLSPEC_HIDDEN;
243 extern void get_ddb_bitmapinfo( BITMAPOBJ *bmp, BITMAPINFO *info ) DECLSPEC_HIDDEN;
244 extern BITMAPINFO *copy_packed_dib( const BITMAPINFO *src_info, UINT usage ) DECLSPEC_HIDDEN;
245 extern DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
246 const BITMAPINFO *dst_info, void *dst_bits ) DECLSPEC_HIDDEN;
248 extern DWORD stretch_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
249 const BITMAPINFO *dst_info, void *dst_bits, struct bitblt_coords *dst,
250 INT mode ) DECLSPEC_HIDDEN;
251 extern DWORD blend_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
252 const BITMAPINFO *dst_info, void *dst_bits, struct bitblt_coords *dst,
253 BLENDFUNCTION blend ) DECLSPEC_HIDDEN;
254 extern DWORD gradient_bitmapinfo( const BITMAPINFO *info, void *bits, TRIVERTEX *vert_array, ULONG nvert,
255 void *grad_array, ULONG ngrad, ULONG mode, const POINT *dev_pts, HRGN rgn ) DECLSPEC_HIDDEN;
256 extern COLORREF get_pixel_bitmapinfo( const BITMAPINFO *info, void *bits, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
257 extern BOOL render_aa_text_bitmapinfo( HDC hdc, BITMAPINFO *info, struct gdi_image_bits *bits,
258 struct bitblt_coords *src, INT x, INT y, UINT flags,
259 UINT aa_flags, LPCWSTR str, UINT count, const INT *dx ) DECLSPEC_HIDDEN;
260 extern DWORD get_image_from_bitmap( BITMAPOBJ *bmp, BITMAPINFO *info,
261 struct gdi_image_bits *bits, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
262 extern DWORD put_image_into_bitmap( BITMAPOBJ *bmp, HRGN clip, BITMAPINFO *info,
263 const struct gdi_image_bits *bits, struct bitblt_coords *src,
264 struct bitblt_coords *dst ) DECLSPEC_HIDDEN;
265 extern void dibdrv_set_window_surface( DC *dc, struct window_surface *surface ) DECLSPEC_HIDDEN;
267 /* driver.c */
268 extern const struct gdi_dc_funcs null_driver DECLSPEC_HIDDEN;
269 extern const struct gdi_dc_funcs dib_driver DECLSPEC_HIDDEN;
270 extern const struct gdi_dc_funcs path_driver DECLSPEC_HIDDEN;
271 extern const struct gdi_dc_funcs *font_driver DECLSPEC_HIDDEN;
272 extern const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name ) DECLSPEC_HIDDEN;
273 extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size ) DECLSPEC_HIDDEN;
275 /* enhmetafile.c */
276 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk ) DECLSPEC_HIDDEN;
278 /* freetype.c */
280 /* Undocumented structure filled in by GetFontRealizationInfo */
281 struct font_realization_info
283 DWORD size; /* could be 16 or 24 */
284 DWORD flags; /* 1 for bitmap fonts, 3 for scalable fonts */
285 DWORD cache_num; /* keeps incrementing - num of fonts that have been created allowing for caching?? */
286 DWORD instance_id; /* identifies a realized font instance */
287 DWORD unk; /* unknown */
288 WORD face_index; /* face index in case of font collections */
289 WORD simulations; /* 0 bit - bold simulation, 1 bit - oblique simulation */
292 extern INT WineEngAddFontResourceEx(LPCWSTR, DWORD, PVOID) DECLSPEC_HIDDEN;
293 extern HANDLE WineEngAddFontMemResourceEx(PVOID, DWORD, PVOID, LPDWORD) DECLSPEC_HIDDEN;
294 extern BOOL WineEngCreateScalableFontResource(DWORD, LPCWSTR, LPCWSTR, LPCWSTR) DECLSPEC_HIDDEN;
295 extern BOOL WineEngInit(void) DECLSPEC_HIDDEN;
296 extern BOOL WineEngRemoveFontResourceEx(LPCWSTR, DWORD, PVOID) DECLSPEC_HIDDEN;
298 /* gdiobj.c */
299 extern HGDIOBJ alloc_gdi_handle( void *obj, WORD type, const struct gdi_obj_funcs *funcs ) DECLSPEC_HIDDEN;
300 extern void *free_gdi_handle( HGDIOBJ handle ) DECLSPEC_HIDDEN;
301 extern HGDIOBJ get_full_gdi_handle( HGDIOBJ handle ) DECLSPEC_HIDDEN;
302 extern void *GDI_GetObjPtr( HGDIOBJ, WORD ) DECLSPEC_HIDDEN;
303 extern void *get_any_obj_ptr( HGDIOBJ, WORD * ) DECLSPEC_HIDDEN;
304 extern void GDI_ReleaseObj( HGDIOBJ ) DECLSPEC_HIDDEN;
305 extern void GDI_CheckNotLock(void) DECLSPEC_HIDDEN;
306 extern UINT GDI_get_ref_count( HGDIOBJ handle ) DECLSPEC_HIDDEN;
307 extern HGDIOBJ GDI_inc_ref_count( HGDIOBJ handle ) DECLSPEC_HIDDEN;
308 extern BOOL GDI_dec_ref_count( HGDIOBJ handle ) DECLSPEC_HIDDEN;
309 extern void GDI_hdc_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
310 extern void GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
312 /* metafile.c */
313 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh) DECLSPEC_HIDDEN;
314 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCVOID filename, BOOL unicode ) DECLSPEC_HIDDEN;
316 /* Format of comment record added by GetWinMetaFileBits */
317 #include <pshpack2.h>
318 typedef struct
320 DWORD magic; /* WMFC */
321 WORD unk04; /* 1 */
322 WORD unk06; /* 0 */
323 WORD unk08; /* 0 */
324 WORD unk0a; /* 1 */
325 WORD checksum;
326 DWORD unk0e; /* 0 */
327 DWORD num_chunks;
328 DWORD chunk_size;
329 DWORD remaining_size;
330 DWORD emf_size;
331 BYTE emf_data[1];
332 } emf_in_wmf_comment;
333 #include <poppack.h>
335 #define WMFC_MAGIC 0x43464d57
337 /* path.c */
339 extern void free_gdi_path( struct gdi_path *path ) DECLSPEC_HIDDEN;
340 extern struct gdi_path *get_gdi_flat_path( HDC hdc, HRGN *rgn ) DECLSPEC_HIDDEN;
341 extern int get_gdi_path_data( struct gdi_path *path, POINT **points, BYTE **flags ) DECLSPEC_HIDDEN;
342 extern BOOL PATH_SavePath( DC *dst, DC *src ) DECLSPEC_HIDDEN;
343 extern BOOL PATH_RestorePath( DC *dst, DC *src ) DECLSPEC_HIDDEN;
345 /* painting.c */
346 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut ) DECLSPEC_HIDDEN;
348 /* palette.c */
349 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg) DECLSPEC_HIDDEN;
350 extern UINT WINAPI GDIRealizePalette( HDC hdc ) DECLSPEC_HIDDEN;
351 extern HPALETTE PALETTE_Init(void) DECLSPEC_HIDDEN;
353 /* region.c */
354 extern BOOL add_rect_to_region( HRGN rgn, const RECT *rect ) DECLSPEC_HIDDEN;
355 extern INT mirror_region( HRGN dst, HRGN src, INT width ) DECLSPEC_HIDDEN;
356 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y ) DECLSPEC_HIDDEN;
358 #define RGN_DEFAULT_RECTS 4
359 typedef struct
361 INT size;
362 INT numRects;
363 RECT *rects;
364 RECT extents;
365 RECT rects_buf[RGN_DEFAULT_RECTS];
366 } WINEREGION;
368 /* return the region data without making a copy */
369 static inline const WINEREGION *get_wine_region(HRGN rgn)
371 return GDI_GetObjPtr( rgn, OBJ_REGION );
373 static inline void release_wine_region(HRGN rgn)
375 GDI_ReleaseObj(rgn);
378 /**********************************************************
379 * region_find_pt
381 * Return either the index of the rectangle that contains (x,y) or the first
382 * rectangle after it. Sets *hit to TRUE if the region contains (x,y).
383 * Note if (x,y) follows all rectangles, then the return value will be rgn->numRects.
385 static inline int region_find_pt( const WINEREGION *rgn, int x, int y, BOOL *hit )
387 int i, start = 0, end = rgn->numRects - 1;
388 BOOL h = FALSE;
390 while (start <= end)
392 i = (start + end) / 2;
394 if (rgn->rects[i].bottom <= y ||
395 (rgn->rects[i].top <= y && rgn->rects[i].right <= x))
396 start = i + 1;
397 else if (rgn->rects[i].top > y ||
398 (rgn->rects[i].bottom > y && rgn->rects[i].left > x))
399 end = i - 1;
400 else
402 h = TRUE;
403 break;
407 if (hit) *hit = h;
408 return h ? i : start;
411 /* null driver entry points */
412 extern BOOL nulldrv_AbortPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
413 extern BOOL nulldrv_AlphaBlend( PHYSDEV dst_dev, struct bitblt_coords *dst,
414 PHYSDEV src_dev, struct bitblt_coords *src, BLENDFUNCTION func) DECLSPEC_HIDDEN;
415 extern BOOL nulldrv_AngleArc( PHYSDEV dev, INT x, INT y, DWORD radius, FLOAT start, FLOAT sweep ) DECLSPEC_HIDDEN;
416 extern BOOL nulldrv_ArcTo( PHYSDEV dev, INT left, INT top, INT right, INT bottom, INT xstart, INT ystart, INT xend, INT yend ) DECLSPEC_HIDDEN;
417 extern BOOL nulldrv_BeginPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
418 extern DWORD nulldrv_BlendImage( PHYSDEV dev, BITMAPINFO *info, const struct gdi_image_bits *bits,
419 struct bitblt_coords *src, struct bitblt_coords *dst, BLENDFUNCTION func ) DECLSPEC_HIDDEN;
420 extern BOOL nulldrv_CloseFigure( PHYSDEV dev ) DECLSPEC_HIDDEN;
421 extern BOOL nulldrv_EndPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
422 extern INT nulldrv_ExcludeClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom ) DECLSPEC_HIDDEN;
423 extern INT nulldrv_ExtSelectClipRgn( PHYSDEV dev, HRGN rgn, INT mode ) DECLSPEC_HIDDEN;
424 extern BOOL nulldrv_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags, const RECT *rect,
425 LPCWSTR str, UINT count, const INT *dx ) DECLSPEC_HIDDEN;
426 extern BOOL nulldrv_FillPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
427 extern BOOL nulldrv_FillRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush ) DECLSPEC_HIDDEN;
428 extern BOOL nulldrv_FlattenPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
429 extern BOOL nulldrv_FrameRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush, INT width, INT height ) DECLSPEC_HIDDEN;
430 extern LONG nulldrv_GetBitmapBits( HBITMAP bitmap, void *bits, LONG size ) DECLSPEC_HIDDEN;
431 extern COLORREF nulldrv_GetNearestColor( PHYSDEV dev, COLORREF color ) DECLSPEC_HIDDEN;
432 extern COLORREF nulldrv_GetPixel( PHYSDEV dev, INT x, INT y ) DECLSPEC_HIDDEN;
433 extern UINT nulldrv_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, PALETTEENTRY *entries ) DECLSPEC_HIDDEN;
434 extern BOOL nulldrv_GradientFill( PHYSDEV dev, TRIVERTEX *vert_array, ULONG nvert,
435 void * grad_array, ULONG ngrad, ULONG mode ) DECLSPEC_HIDDEN;
436 extern INT nulldrv_IntersectClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom ) DECLSPEC_HIDDEN;
437 extern BOOL nulldrv_InvertRgn( PHYSDEV dev, HRGN rgn ) DECLSPEC_HIDDEN;
438 extern BOOL nulldrv_ModifyWorldTransform( PHYSDEV dev, const XFORM *xform, DWORD mode ) DECLSPEC_HIDDEN;
439 extern INT nulldrv_OffsetClipRgn( PHYSDEV dev, INT x, INT y ) DECLSPEC_HIDDEN;
440 extern BOOL nulldrv_OffsetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
441 extern BOOL nulldrv_OffsetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
442 extern BOOL nulldrv_PolyBezier( PHYSDEV dev, const POINT *points, DWORD count ) DECLSPEC_HIDDEN;
443 extern BOOL nulldrv_PolyBezierTo( PHYSDEV dev, const POINT *points, DWORD count ) DECLSPEC_HIDDEN;
444 extern BOOL nulldrv_PolyDraw( PHYSDEV dev, const POINT *points, const BYTE *types, DWORD count ) DECLSPEC_HIDDEN;
445 extern BOOL nulldrv_PolylineTo( PHYSDEV dev, const POINT *points, INT count ) DECLSPEC_HIDDEN;
446 extern BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level ) DECLSPEC_HIDDEN;
447 extern INT nulldrv_SaveDC( PHYSDEV dev ) DECLSPEC_HIDDEN;
448 extern BOOL nulldrv_ScaleViewportExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size ) DECLSPEC_HIDDEN;
449 extern BOOL nulldrv_ScaleWindowExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size ) DECLSPEC_HIDDEN;
450 extern BOOL nulldrv_SelectClipPath( PHYSDEV dev, INT mode ) DECLSPEC_HIDDEN;
451 extern HFONT nulldrv_SelectFont( PHYSDEV dev, HFONT font, UINT *ggo_flags ) DECLSPEC_HIDDEN;
452 extern INT nulldrv_SetDIBitsToDevice( PHYSDEV dev, INT x_dst, INT y_dst, DWORD width, DWORD height,
453 INT x_src, INT y_src, UINT start, UINT lines,
454 const void *bits, BITMAPINFO *info, UINT coloruse ) DECLSPEC_HIDDEN;
455 extern INT nulldrv_SetMapMode( PHYSDEV dev, INT mode ) DECLSPEC_HIDDEN;
456 extern BOOL nulldrv_SetViewportExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size ) DECLSPEC_HIDDEN;
457 extern BOOL nulldrv_SetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
458 extern BOOL nulldrv_SetWindowExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size ) DECLSPEC_HIDDEN;
459 extern BOOL nulldrv_SetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
460 extern BOOL nulldrv_SetWorldTransform( PHYSDEV dev, const XFORM *xform ) DECLSPEC_HIDDEN;
461 extern BOOL nulldrv_StretchBlt( PHYSDEV dst_dev, struct bitblt_coords *dst,
462 PHYSDEV src_dev, struct bitblt_coords *src, DWORD rop ) DECLSPEC_HIDDEN;
463 extern INT nulldrv_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT heightDst,
464 INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, const void *bits,
465 BITMAPINFO *info, UINT coloruse, DWORD rop ) DECLSPEC_HIDDEN;
466 extern BOOL nulldrv_StrokeAndFillPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
467 extern BOOL nulldrv_StrokePath( PHYSDEV dev ) DECLSPEC_HIDDEN;
468 extern BOOL nulldrv_WidenPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
470 static inline DC *get_nulldrv_dc( PHYSDEV dev )
472 return CONTAINING_RECORD( dev, DC, nulldrv );
475 /* Undocumented value for DIB's iUsage: Indicates a mono DIB w/o pal entries */
476 #define DIB_PAL_MONO 2
478 BOOL WINAPI FontIsLinked(HDC);
480 BOOL WINAPI SetVirtualResolution(HDC hdc, DWORD horz_res, DWORD vert_res, DWORD horz_size, DWORD vert_size);
482 static inline BOOL is_rect_empty( const RECT *rect )
484 return (rect->left >= rect->right || rect->top >= rect->bottom);
487 static inline BOOL intersect_rect( RECT *dst, const RECT *src1, const RECT *src2 )
489 dst->left = max( src1->left, src2->left );
490 dst->top = max( src1->top, src2->top );
491 dst->right = min( src1->right, src2->right );
492 dst->bottom = min( src1->bottom, src2->bottom );
493 return !is_rect_empty( dst );
496 static inline void offset_rect( RECT *rect, int offset_x, int offset_y )
498 rect->left += offset_x;
499 rect->top += offset_y;
500 rect->right += offset_x;
501 rect->bottom += offset_y;
504 static inline void order_rect( RECT *rect )
506 if (rect->left > rect->right)
508 int tmp = rect->left;
509 rect->left = rect->right;
510 rect->right = tmp;
512 if (rect->top > rect->bottom)
514 int tmp = rect->top;
515 rect->top = rect->bottom;
516 rect->bottom = tmp;
520 static inline void get_bounding_rect( RECT *rect, int x, int y, int width, int height )
522 rect->left = x;
523 rect->right = x + width;
524 rect->top = y;
525 rect->bottom = y + height;
526 if (rect->left > rect->right)
528 int tmp = rect->left;
529 rect->left = rect->right + 1;
530 rect->right = tmp + 1;
532 if (rect->top > rect->bottom)
534 int tmp = rect->top;
535 rect->top = rect->bottom + 1;
536 rect->bottom = tmp + 1;
540 static inline void reset_bounds( RECT *bounds )
542 bounds->left = bounds->top = INT_MAX;
543 bounds->right = bounds->bottom = INT_MIN;
546 static inline void add_bounds_rect( RECT *bounds, const RECT *rect )
548 if (is_rect_empty( rect )) return;
549 bounds->left = min( bounds->left, rect->left );
550 bounds->top = min( bounds->top, rect->top );
551 bounds->right = max( bounds->right, rect->right );
552 bounds->bottom = max( bounds->bottom, rect->bottom );
555 static inline int get_bitmap_stride( int width, int bpp )
557 return ((width * bpp + 15) >> 3) & ~1;
560 static inline int get_dib_stride( int width, int bpp )
562 return ((width * bpp + 31) >> 3) & ~3;
565 static inline int get_dib_image_size( const BITMAPINFO *info )
567 return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
568 * abs( info->bmiHeader.biHeight );
571 /* only for use on sanitized BITMAPINFO structures */
572 static inline int get_dib_info_size( const BITMAPINFO *info, UINT coloruse )
574 if (info->bmiHeader.biCompression == BI_BITFIELDS)
575 return sizeof(BITMAPINFOHEADER) + 3 * sizeof(DWORD);
576 if (coloruse == DIB_PAL_COLORS)
577 return sizeof(BITMAPINFOHEADER) + info->bmiHeader.biClrUsed * sizeof(WORD);
578 return FIELD_OFFSET( BITMAPINFO, bmiColors[info->bmiHeader.biClrUsed] );
581 /* only for use on sanitized BITMAPINFO structures */
582 static inline void copy_bitmapinfo( BITMAPINFO *dst, const BITMAPINFO *src )
584 memcpy( dst, src, get_dib_info_size( src, DIB_RGB_COLORS ));
587 extern void free_heap_bits( struct gdi_image_bits *bits ) DECLSPEC_HIDDEN;
589 extern HMODULE gdi32_module DECLSPEC_HIDDEN;
591 #endif /* __WINE_GDI_PRIVATE_H */