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windowscodecs: Implement JpegEncoder_Frame_SetResolution.
[wine/multimedia.git] / dlls / gdi32 / gdi_private.h
blob20b522da8cdbd1cb21c9c4801553c3bbe6f43232
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 <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"
32
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
41
42 typedef struct {
43 EMR emr;
44 INT nBreakExtra;
45 INT nBreakCount;
46 } EMRSETTEXTJUSTIFICATION, *PEMRSETTEXTJUSTIFICATION;
47
48 /* extra stock object: default 1x1 bitmap for memory DCs */
49 #define DEFAULT_BITMAP (STOCK_LAST+1)
50
51 struct gdi_obj_funcs
52 {
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 );
58 };
59
60 struct hdc_list
61 {
62 HDC hdc;
63 struct hdc_list *next;
64 };
65
66 typedef struct tagGDIOBJHDR
67 {
68 WORD type; /* object type (one of the OBJ_* constants) */
69 WORD system : 1; /* system object flag */
70 WORD deleted : 1; /* whether DeleteObject has been called on this object */
71 DWORD selcount; /* number of times the object is selected in a DC */
72 const struct gdi_obj_funcs *funcs;
73 struct hdc_list *hdcs;
74 } GDIOBJHDR;
75
76 typedef struct tagGdiFont GdiFont;
77
78 typedef struct tagDC
79 {
80 GDIOBJHDR header;
81 HDC hSelf; /* Handle to this DC */
82 struct gdi_physdev nulldrv; /* physdev for the null driver */
83 PHYSDEV dibdrv; /* physdev for the dib driver */
84 PHYSDEV physDev; /* current top of the physdev stack */
85 DWORD thread; /* thread owning the DC */
86 LONG refcount; /* thread refcount */
87 LONG dirty; /* dirty flag */
88 INT saveLevel;
89 struct tagDC *saved_dc;
90 DWORD_PTR dwHookData;
91 DCHOOKPROC hookProc; /* DC hook */
92
93 BOOL bounds_enabled:1; /* bounds tracking is enabled */
94 BOOL path_open:1; /* path is currently open (only for saved DCs) */
95
96 INT wndOrgX; /* Window origin */
97 INT wndOrgY;
98 INT wndExtX; /* Window extent */
99 INT wndExtY;
100 INT vportOrgX; /* Viewport origin */
101 INT vportOrgY;
102 INT vportExtX; /* Viewport extent */
103 INT vportExtY;
104 SIZE virtual_res; /* Initially HORZRES,VERTRES. Changed by SetVirtualResolution */
105 SIZE virtual_size; /* Initially HORZSIZE,VERTSIZE. Changed by SetVirtualResolution */
106 RECT vis_rect; /* visible rectangle in screen coords */
107 FLOAT miterLimit;
108
109 int flags;
110 DWORD layout;
111 HRGN hClipRgn; /* Clip region */
112 HRGN hMetaRgn; /* Meta region */
113 HRGN hVisRgn; /* Visible region */
114 HRGN region; /* Total DC region (intersection of clip and visible) */
115 HPEN hPen;
116 HBRUSH hBrush;
117 HFONT hFont;
118 HBITMAP hBitmap;
119 HANDLE hDevice;
120 HPALETTE hPalette;
121
122 GdiFont *gdiFont;
123 struct gdi_path *path;
124
125 UINT font_code_page;
126 WORD ROPmode;
127 WORD polyFillMode;
128 WORD stretchBltMode;
129 WORD relAbsMode;
130 WORD backgroundMode;
131 COLORREF backgroundColor;
132 COLORREF textColor;
133 COLORREF dcBrushColor;
134 COLORREF dcPenColor;
135 short brushOrgX;
136 short brushOrgY;
137
138 DWORD mapperFlags; /* Font mapper flags */
139 WORD textAlign; /* Text alignment from SetTextAlign() */
140 INT charExtra; /* Spacing from SetTextCharacterExtra() */
141 INT breakExtra; /* breakTotalExtra / breakCount */
142 INT breakRem; /* breakTotalExtra % breakCount */
143 INT MapMode;
144 INT GraphicsMode; /* Graphics mode */
145 ABORTPROC pAbortProc; /* AbortProc for Printing */
146 INT CursPosX; /* Current position */
147 INT CursPosY;
148 INT ArcDirection;
149 XFORM xformWorld2Wnd; /* World-to-window transformation */
150 XFORM xformWorld2Vport; /* World-to-viewport transformation */
151 XFORM xformVport2World; /* Inverse of the above transformation */
152 BOOL vport2WorldValid; /* Is xformVport2World valid? */
153 RECT bounds; /* Current bounding rect */
154 } DC;
155
156 /* Certain functions will do no further processing if the driver returns this.
157 Used by mfdrv for example. */
158 #define GDI_NO_MORE_WORK 2
159
160 /* Rounds a floating point number to integer. The world-to-viewport
161 * transformation process is done in floating point internally. This function
162 * is then used to round these coordinates to integer values.
163 */
164 static inline INT GDI_ROUND(double val)
165 {
166 return (int)floor(val + 0.5);
167 }
168
169 #define GET_DC_PHYSDEV(dc,func) \
170 get_physdev_entry_point( (dc)->physDev, FIELD_OFFSET(struct gdi_dc_funcs,func))
171
172 /* bitmap object */
173
174 typedef struct tagBITMAPOBJ
175 {
176 GDIOBJHDR header;
177 DIBSECTION dib;
178 SIZE size; /* For SetBitmapDimension() */
179 RGBQUAD *color_table; /* DIB color table if <= 8bpp (always 1 << bpp in size) */
180 const struct gdi_dc_funcs *funcs; /* DC function table */
181 } BITMAPOBJ;
182
183 static inline BOOL is_bitmapobj_dib( const BITMAPOBJ *bmp )
184 {
185 return bmp->dib.dsBmih.biSize != 0;
186 }
187
188 /* bidi.c */
189
190 /* Wine_GCPW Flags */
191 /* Directionality -
192 * LOOSE means taking the directionality of the first strong character, if there is found one.
193 * FORCE means the paragraph direction is forced. (RLE/LRE)
194 */
195 #define WINE_GCPW_FORCE_LTR 0
196 #define WINE_GCPW_FORCE_RTL 1
197 #define WINE_GCPW_LOOSE_LTR 2
198 #define WINE_GCPW_LOOSE_RTL 3
199 #define WINE_GCPW_DIR_MASK 3
200 #define WINE_GCPW_LOOSE_MASK 2
201
202 extern BOOL BIDI_Reorder( HDC hDC, LPCWSTR lpString, INT uCount, DWORD dwFlags, DWORD dwWineGCP_Flags,
203 LPWSTR lpOutString, INT uCountOut, UINT *lpOrder, WORD **lpGlyphs, INT* cGlyphs ) DECLSPEC_HIDDEN;
204
205 /* bitblt.c */
206 extern DWORD convert_bits( const BITMAPINFO *src_info, struct bitblt_coords *src,
207 BITMAPINFO *dst_info, struct gdi_image_bits *bits, BOOL add_alpha ) DECLSPEC_HIDDEN;
208 extern BOOL intersect_vis_rectangles( struct bitblt_coords *dst, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
209 extern DWORD stretch_bits( const BITMAPINFO *src_info, struct bitblt_coords *src,
210 BITMAPINFO *dst_info, struct bitblt_coords *dst,
211 struct gdi_image_bits *bits, int mode ) DECLSPEC_HIDDEN;
212
213 /* brush.c */
214 extern void cache_pattern_bits( PHYSDEV physdev, struct brush_pattern *pattern ) DECLSPEC_HIDDEN;
215 extern BOOL store_brush_pattern( LOGBRUSH *brush, struct brush_pattern *pattern ) DECLSPEC_HIDDEN;
216 extern void free_brush_pattern( struct brush_pattern *pattern ) DECLSPEC_HIDDEN;
217 extern BOOL get_brush_bitmap_info( HBRUSH handle, BITMAPINFO *info, void **bits, UINT *usage ) DECLSPEC_HIDDEN;
218
219 /* clipping.c */
220 extern BOOL clip_visrect( DC *dc, RECT *dst, const RECT *src ) DECLSPEC_HIDDEN;
221 extern void update_dc_clipping( DC * dc ) DECLSPEC_HIDDEN;
222
223 /* Return the total DC region (if any) */
224 static inline HRGN get_dc_region( DC *dc )
225 {
226 if (dc->region) return dc->region;
227 if (dc->hVisRgn) return dc->hVisRgn;
228 if (dc->hClipRgn) return dc->hClipRgn;
229 return dc->hMetaRgn;
230 }
231
232 /* dc.c */
233 extern DC *alloc_dc_ptr( WORD magic ) DECLSPEC_HIDDEN;
234 extern void free_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
235 extern DC *get_dc_ptr( HDC hdc ) DECLSPEC_HIDDEN;
236 extern void release_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
237 extern void update_dc( DC *dc ) DECLSPEC_HIDDEN;
238 extern void DC_InitDC( DC * dc ) DECLSPEC_HIDDEN;
239 extern void DC_UpdateXforms( DC * dc ) DECLSPEC_HIDDEN;
240
241 /* dib.c */
242 extern int bitmap_info_size( const BITMAPINFO * info, WORD coloruse ) DECLSPEC_HIDDEN;
243 extern BOOL fill_color_table_from_pal_colors( BITMAPINFO *info, HDC hdc ) DECLSPEC_HIDDEN;
244 extern const RGBQUAD *get_default_color_table( int bpp ) DECLSPEC_HIDDEN;
245 extern void fill_default_color_table( BITMAPINFO *info ) DECLSPEC_HIDDEN;
246 extern void get_ddb_bitmapinfo( BITMAPOBJ *bmp, BITMAPINFO *info ) DECLSPEC_HIDDEN;
247 extern BITMAPINFO *copy_packed_dib( const BITMAPINFO *src_info, UINT usage ) DECLSPEC_HIDDEN;
248 extern DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
249 const BITMAPINFO *dst_info, void *dst_bits, BOOL add_alpha ) DECLSPEC_HIDDEN;
250
251 extern DWORD stretch_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 INT mode ) DECLSPEC_HIDDEN;
254 extern DWORD blend_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
255 const BITMAPINFO *dst_info, void *dst_bits, struct bitblt_coords *dst,
256 BLENDFUNCTION blend ) DECLSPEC_HIDDEN;
257 extern DWORD gradient_bitmapinfo( const BITMAPINFO *info, void *bits, TRIVERTEX *vert_array, ULONG nvert,
258 void *grad_array, ULONG ngrad, ULONG mode, const POINT *dev_pts, HRGN rgn ) DECLSPEC_HIDDEN;
259 extern COLORREF get_pixel_bitmapinfo( const BITMAPINFO *info, void *bits, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
260 extern BOOL render_aa_text_bitmapinfo( HDC hdc, BITMAPINFO *info, struct gdi_image_bits *bits,
261 struct bitblt_coords *src, INT x, INT y, UINT flags,
262 UINT aa_flags, LPCWSTR str, UINT count, const INT *dx ) DECLSPEC_HIDDEN;
263
264 /* driver.c */
265 extern const struct gdi_dc_funcs null_driver DECLSPEC_HIDDEN;
266 extern const struct gdi_dc_funcs dib_driver DECLSPEC_HIDDEN;
267 extern const struct gdi_dc_funcs path_driver DECLSPEC_HIDDEN;
268 extern const struct gdi_dc_funcs *font_driver DECLSPEC_HIDDEN;
269 extern const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name ) DECLSPEC_HIDDEN;
270 extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size ) DECLSPEC_HIDDEN;
271
272 /* enhmetafile.c */
273 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk ) DECLSPEC_HIDDEN;
274
275 /* font.c */
276 extern UINT get_font_aa_flags( HDC hdc ) DECLSPEC_HIDDEN;
277
278 /* freetype.c */
279
280 /* Undocumented structure filled in by GdiRealizationInfo */
281 typedef struct
282 {
283 DWORD flags; /* 1 for bitmap fonts, 3 for scalable fonts */
284 DWORD cache_num; /* keeps incrementing - num of fonts that have been created allowing for caching?? */
285 DWORD unknown2; /* fixed for a given font - looks like it could be the order of the face in the font list or the order
286 in which the face was first rendered. */
287 } realization_info_t;
288
289
290 extern INT WineEngAddFontResourceEx(LPCWSTR, DWORD, PVOID) DECLSPEC_HIDDEN;
291 extern HANDLE WineEngAddFontMemResourceEx(PVOID, DWORD, PVOID, LPDWORD) DECLSPEC_HIDDEN;
292 extern BOOL WineEngCreateScalableFontResource(DWORD, LPCWSTR, LPCWSTR, LPCWSTR) DECLSPEC_HIDDEN;
293 extern BOOL WineEngDestroyFontInstance(HFONT handle) DECLSPEC_HIDDEN;
294 extern BOOL WineEngGetLinkedHFont(DC *dc, WCHAR c, HFONT *new_hfont, UINT *glyph) DECLSPEC_HIDDEN;
295 extern BOOL WineEngInit(void) DECLSPEC_HIDDEN;
296 extern BOOL WineEngRemoveFontResourceEx(LPCWSTR, DWORD, PVOID) DECLSPEC_HIDDEN;
297
298 /* gdiobj.c */
299 extern HGDIOBJ alloc_gdi_handle( GDIOBJHDR *obj, WORD type, const struct gdi_obj_funcs *funcs ) DECLSPEC_HIDDEN;
300 extern void *free_gdi_handle( HGDIOBJ handle ) DECLSPEC_HIDDEN;
301 extern void *GDI_GetObjPtr( HGDIOBJ, WORD ) DECLSPEC_HIDDEN;
302 extern void GDI_ReleaseObj( HGDIOBJ ) DECLSPEC_HIDDEN;
303 extern void GDI_CheckNotLock(void) DECLSPEC_HIDDEN;
304 extern HGDIOBJ GDI_inc_ref_count( HGDIOBJ handle ) DECLSPEC_HIDDEN;
305 extern BOOL GDI_dec_ref_count( HGDIOBJ handle ) DECLSPEC_HIDDEN;
306 extern BOOL GDI_hdc_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
307 extern BOOL GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
308
309 /* metafile.c */
310 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh) DECLSPEC_HIDDEN;
311 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCVOID filename, BOOL unicode ) DECLSPEC_HIDDEN;
312
313 /* path.c */
314
315 extern void free_gdi_path( struct gdi_path *path ) DECLSPEC_HIDDEN;
316 extern BOOL PATH_SavePath( DC *dst, DC *src ) DECLSPEC_HIDDEN;
317 extern BOOL PATH_RestorePath( DC *dst, DC *src ) DECLSPEC_HIDDEN;
318
319 /* painting.c */
320 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut ) DECLSPEC_HIDDEN;
321
322 /* palette.c */
323 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg) DECLSPEC_HIDDEN;
324 extern UINT WINAPI GDIRealizePalette( HDC hdc ) DECLSPEC_HIDDEN;
325 extern HPALETTE PALETTE_Init(void) DECLSPEC_HIDDEN;
326
327 /* region.c */
328 extern BOOL add_rect_to_region( HRGN rgn, const RECT *rect ) DECLSPEC_HIDDEN;
329 extern INT mirror_region( HRGN dst, HRGN src, INT width ) DECLSPEC_HIDDEN;
330 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y ) DECLSPEC_HIDDEN;
331
332 typedef struct
333 {
334 INT size;
335 INT numRects;
336 RECT *rects;
337 RECT extents;
338 } WINEREGION;
339 extern const WINEREGION *get_wine_region(HRGN rgn) DECLSPEC_HIDDEN;
340 static inline void release_wine_region(HRGN rgn)
341 {
342 GDI_ReleaseObj(rgn);
343 }
344
345 /* null driver entry points */
346 extern BOOL nulldrv_AbortPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
347 extern BOOL nulldrv_AlphaBlend( PHYSDEV dst_dev, struct bitblt_coords *dst,
348 PHYSDEV src_dev, struct bitblt_coords *src, BLENDFUNCTION func) DECLSPEC_HIDDEN;
349 extern BOOL nulldrv_AngleArc( PHYSDEV dev, INT x, INT y, DWORD radius, FLOAT start, FLOAT sweep ) DECLSPEC_HIDDEN;
350 extern BOOL nulldrv_ArcTo( PHYSDEV dev, INT left, INT top, INT right, INT bottom, INT xstart, INT ystart, INT xend, INT yend ) DECLSPEC_HIDDEN;
351 extern BOOL nulldrv_BeginPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
352 extern DWORD nulldrv_BlendImage( PHYSDEV dev, BITMAPINFO *info, const struct gdi_image_bits *bits,
353 struct bitblt_coords *src, struct bitblt_coords *dst, BLENDFUNCTION func ) DECLSPEC_HIDDEN;
354 extern BOOL nulldrv_CloseFigure( PHYSDEV dev ) DECLSPEC_HIDDEN;
355 extern BOOL nulldrv_CopyBitmap( HBITMAP src, HBITMAP dst ) DECLSPEC_HIDDEN;
356 extern BOOL nulldrv_EndPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
357 extern INT nulldrv_ExcludeClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom ) DECLSPEC_HIDDEN;
358 extern INT nulldrv_ExtSelectClipRgn( PHYSDEV dev, HRGN rgn, INT mode ) DECLSPEC_HIDDEN;
359 extern BOOL nulldrv_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags, const RECT *rect,
360 LPCWSTR str, UINT count, const INT *dx ) DECLSPEC_HIDDEN;
361 extern BOOL nulldrv_FillPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
362 extern BOOL nulldrv_FillRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush ) DECLSPEC_HIDDEN;
363 extern BOOL nulldrv_FlattenPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
364 extern BOOL nulldrv_FrameRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush, INT width, INT height ) DECLSPEC_HIDDEN;
365 extern LONG nulldrv_GetBitmapBits( HBITMAP bitmap, void *bits, LONG size ) DECLSPEC_HIDDEN;
366 extern DWORD nulldrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info, struct gdi_image_bits *bits, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
367 extern COLORREF nulldrv_GetNearestColor( PHYSDEV dev, COLORREF color ) DECLSPEC_HIDDEN;
368 extern COLORREF nulldrv_GetPixel( PHYSDEV dev, INT x, INT y ) DECLSPEC_HIDDEN;
369 extern BOOL nulldrv_GradientFill( PHYSDEV dev, TRIVERTEX *vert_array, ULONG nvert,
370 void * grad_array, ULONG ngrad, ULONG mode ) DECLSPEC_HIDDEN;
371 extern INT nulldrv_IntersectClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom ) DECLSPEC_HIDDEN;
372 extern BOOL nulldrv_InvertRgn( PHYSDEV dev, HRGN rgn ) DECLSPEC_HIDDEN;
373 extern BOOL nulldrv_ModifyWorldTransform( PHYSDEV dev, const XFORM *xform, DWORD mode ) DECLSPEC_HIDDEN;
374 extern INT nulldrv_OffsetClipRgn( PHYSDEV dev, INT x, INT y ) DECLSPEC_HIDDEN;
375 extern BOOL nulldrv_OffsetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
376 extern BOOL nulldrv_OffsetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
377 extern BOOL nulldrv_PolyBezier( PHYSDEV dev, const POINT *points, DWORD count ) DECLSPEC_HIDDEN;
378 extern BOOL nulldrv_PolyBezierTo( PHYSDEV dev, const POINT *points, DWORD count ) DECLSPEC_HIDDEN;
379 extern BOOL nulldrv_PolyDraw( PHYSDEV dev, const POINT *points, const BYTE *types, DWORD count ) DECLSPEC_HIDDEN;
380 extern BOOL nulldrv_PolylineTo( PHYSDEV dev, const POINT *points, INT count ) DECLSPEC_HIDDEN;
381 extern DWORD nulldrv_PutImage( PHYSDEV dev, HBITMAP hbitmap, HRGN clip, BITMAPINFO *info,
382 const struct gdi_image_bits *bits, struct bitblt_coords *src,
383 struct bitblt_coords *dst, DWORD rop ) DECLSPEC_HIDDEN;
384 extern BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level ) DECLSPEC_HIDDEN;
385 extern INT nulldrv_SaveDC( PHYSDEV dev ) DECLSPEC_HIDDEN;
386 extern BOOL nulldrv_ScaleViewportExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size ) DECLSPEC_HIDDEN;
387 extern BOOL nulldrv_ScaleWindowExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size ) DECLSPEC_HIDDEN;
388 extern BOOL nulldrv_SelectClipPath( PHYSDEV dev, INT mode ) DECLSPEC_HIDDEN;
389 extern INT nulldrv_SetDIBitsToDevice( PHYSDEV dev, INT x_dst, INT y_dst, DWORD width, DWORD height,
390 INT x_src, INT y_src, UINT start, UINT lines,
391 const void *bits, BITMAPINFO *info, UINT coloruse ) DECLSPEC_HIDDEN;
392 extern INT nulldrv_SetMapMode( PHYSDEV dev, INT mode ) DECLSPEC_HIDDEN;
393 extern BOOL nulldrv_SetViewportExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size ) DECLSPEC_HIDDEN;
394 extern BOOL nulldrv_SetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
395 extern BOOL nulldrv_SetWindowExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size ) DECLSPEC_HIDDEN;
396 extern BOOL nulldrv_SetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt ) DECLSPEC_HIDDEN;
397 extern BOOL nulldrv_SetWorldTransform( PHYSDEV dev, const XFORM *xform ) DECLSPEC_HIDDEN;
398 extern BOOL nulldrv_StretchBlt( PHYSDEV dst_dev, struct bitblt_coords *dst,
399 PHYSDEV src_dev, struct bitblt_coords *src, DWORD rop ) DECLSPEC_HIDDEN;
400 extern INT nulldrv_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT heightDst,
401 INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, const void *bits,
402 BITMAPINFO *info, UINT coloruse, DWORD rop ) DECLSPEC_HIDDEN;
403 extern BOOL nulldrv_StrokeAndFillPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
404 extern BOOL nulldrv_StrokePath( PHYSDEV dev ) DECLSPEC_HIDDEN;
405 extern BOOL nulldrv_WidenPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
406
407 static inline DC *get_nulldrv_dc( PHYSDEV dev )
408 {
409 return CONTAINING_RECORD( dev, DC, nulldrv );
410 }
411
412 /* Undocumented value for DIB's iUsage: Indicates a mono DIB w/o pal entries */
413 #define DIB_PAL_MONO 2
414
415 BOOL WINAPI FontIsLinked(HDC);
416
417 BOOL WINAPI SetVirtualResolution(HDC hdc, DWORD horz_res, DWORD vert_res, DWORD horz_size, DWORD vert_size);
418
419 static inline BOOL is_rect_empty( const RECT *rect )
420 {
421 return (rect->left >= rect->right || rect->top >= rect->bottom);
422 }
423
424 static inline BOOL intersect_rect( RECT *dst, const RECT *src1, const RECT *src2 )
425 {
426 dst->left = max( src1->left, src2->left );
427 dst->top = max( src1->top, src2->top );
428 dst->right = min( src1->right, src2->right );
429 dst->bottom = min( src1->bottom, src2->bottom );
430 return !is_rect_empty( dst );
431 }
432
433 static inline void offset_rect( RECT *rect, int offset_x, int offset_y )
434 {
435 rect->left += offset_x;
436 rect->top += offset_y;
437 rect->right += offset_x;
438 rect->bottom += offset_y;
439 }
440
441 static inline void get_bounding_rect( RECT *rect, int x, int y, int width, int height )
442 {
443 rect->left = x;
444 rect->right = x + width;
445 rect->top = y;
446 rect->bottom = y + height;
447 if (rect->left > rect->right)
448 {
449 int tmp = rect->left;
450 rect->left = rect->right + 1;
451 rect->right = tmp + 1;
452 }
453 if (rect->top > rect->bottom)
454 {
455 int tmp = rect->top;
456 rect->top = rect->bottom + 1;
457 rect->bottom = tmp + 1;
458 }
459 }
460
461 static inline void reset_bounds( RECT *bounds )
462 {
463 bounds->left = bounds->top = INT_MAX;
464 bounds->right = bounds->bottom = INT_MIN;
465 }
466
467 static inline void add_bounds_rect( RECT *bounds, const RECT *rect )
468 {
469 if (is_rect_empty( rect )) return;
470 bounds->left = min( bounds->left, rect->left );
471 bounds->top = min( bounds->top, rect->top );
472 bounds->right = max( bounds->right, rect->right );
473 bounds->bottom = max( bounds->bottom, rect->bottom );
474 }
475
476 static inline int get_bitmap_stride( int width, int bpp )
477 {
478 return ((width * bpp + 15) >> 3) & ~1;
479 }
480
481 static inline int get_dib_stride( int width, int bpp )
482 {
483 return ((width * bpp + 31) >> 3) & ~3;
484 }
485
486 static inline int get_dib_image_size( const BITMAPINFO *info )
487 {
488 return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
489 * abs( info->bmiHeader.biHeight );
490 }
491
492 /* only for use on sanitized BITMAPINFO structures */
493 static inline int get_dib_info_size( const BITMAPINFO *info, UINT coloruse )
494 {
495 if (info->bmiHeader.biCompression == BI_BITFIELDS)
496 return sizeof(BITMAPINFOHEADER) + 3 * sizeof(DWORD);
497 if (coloruse == DIB_PAL_COLORS)
498 return sizeof(BITMAPINFOHEADER) + info->bmiHeader.biClrUsed * sizeof(WORD);
499 return FIELD_OFFSET( BITMAPINFO, bmiColors[info->bmiHeader.biClrUsed] );
500 }
501
502 /* only for use on sanitized BITMAPINFO structures */
503 static inline void copy_bitmapinfo( BITMAPINFO *dst, const BITMAPINFO *src )
504 {
505 memcpy( dst, src, get_dib_info_size( src, DIB_RGB_COLORS ));
506 }
507
508 extern void free_heap_bits( struct gdi_image_bits *bits ) DECLSPEC_HIDDEN;
509
510 extern HMODULE gdi32_module DECLSPEC_HIDDEN;
511
512 #endif /* __WINE_GDI_PRIVATE_H */
Maarten's multimedia branch