4 * Copyright 1993 Alexandre Julliard
14 #include "wine/wingdi16.h"
18 /* GDI objects magic numbers */
19 #define FIRST_MAGIC 0x4f47
20 #define PEN_MAGIC 0x4f47
21 #define BRUSH_MAGIC 0x4f48
22 #define FONT_MAGIC 0x4f49
23 #define PALETTE_MAGIC 0x4f4a
24 #define BITMAP_MAGIC 0x4f4b
25 #define REGION_MAGIC 0x4f4c
26 #define DC_MAGIC 0x4f4d
27 #define DISABLED_DC_MAGIC 0x4f4e
28 #define META_DC_MAGIC 0x4f4f
29 #define METAFILE_MAGIC 0x4f50
30 #define METAFILE_DC_MAGIC 0x4f51
31 #define ENHMETAFILE_MAGIC 0x4f52
32 #define ENHMETAFILE_DC_MAGIC 0x4f53
33 #define LAST_MAGIC 0x4f53
35 #define MAGIC_DONTCARE 0xffff
37 /* GDI constants for making objects private/system (naming undoc. !) */
38 #define OBJECT_PRIVATE 0x2000
39 #define OBJECT_NOSYSTEM 0x8000
41 #define GDIMAGIC(magic) ((magic) & ~(OBJECT_PRIVATE|OBJECT_NOSYSTEM))
43 typedef struct tagGDIOBJHDR
51 typedef struct tagDeviceCaps
53 WORD version; /* 0: driver version */
54 WORD technology; /* 2: device technology */
55 WORD horzSize; /* 4: width of display in mm */
56 WORD vertSize; /* 6: height of display in mm */
57 WORD horzRes; /* 8: width of display in pixels */
58 WORD vertRes; /* 10: width of display in pixels */
59 WORD bitsPixel; /* 12: bits per pixel */
60 WORD planes; /* 14: color planes */
61 WORD numBrushes; /* 16: device-specific brushes */
62 WORD numPens; /* 18: device-specific pens */
63 WORD numMarkers; /* 20: device-specific markers */
64 WORD numFonts; /* 22: device-specific fonts */
65 WORD numColors; /* 24: size of color table */
66 WORD pdeviceSize; /* 26: size of PDEVICE structure */
67 WORD curveCaps; /* 28: curve capabilities */
68 WORD lineCaps; /* 30: line capabilities */
69 WORD polygonalCaps; /* 32: polygon capabilities */
70 WORD textCaps; /* 34: text capabilities */
71 WORD clipCaps; /* 36: clipping capabilities */
72 WORD rasterCaps; /* 38: raster capabilities */
73 WORD aspectX; /* 40: relative width of device pixel */
74 WORD aspectY; /* 42: relative height of device pixel */
75 WORD aspectXY; /* 44: relative diagonal width of device pixel */
76 WORD pad1[21]; /* 46-86: reserved */
77 WORD logPixelsX; /* 88: pixels / logical X inch */
78 WORD logPixelsY; /* 90: pixels / logical Y inch */
79 WORD pad2[6]; /* 92-102: reserved */
80 WORD sizePalette; /* 104: entries in system palette */
81 WORD numReserved; /* 106: reserved entries */
82 WORD colorRes; /* 108: color resolution */
85 typedef BOOL16 CALLBACK (*DCHOOKPROC)(HDC16,WORD,DWORD,LPARAM);
90 HDC hSelf; /* Handle to this DC */
91 const struct tagDC_FUNCS *funcs; /* DC function table */
92 void *physDev; /* Physical device (driver-specific) */
95 FARPROC16 hookProc; /* the original SEGPTR ... */
96 DCHOOKPROC hookThunk; /* ... and the thunk to call it */
98 INT wndOrgX; /* Window origin */
100 INT wndExtX; /* Window extent */
102 INT vportOrgX; /* Viewport origin */
104 INT vportExtX; /* Viewport extent */
108 const DeviceCaps *devCaps;
110 HRGN16 hClipRgn; /* Clip region (may be 0) */
111 HRGN16 hVisRgn; /* Visible region (must never be 0) */
112 HRGN16 hGCClipRgn; /* GC clip region (ClipRgn AND VisRgn) */
127 COLORREF backgroundColor;
132 WORD textAlign; /* Text alignment from SetTextAlign() */
133 short charExtra; /* Spacing from SetTextCharacterExtra() */
134 short breakTotalExtra; /* Total extra space for justification */
135 short breakCount; /* Break char. count */
136 short breakExtra; /* breakTotalExtra / breakCount */
137 short breakRem; /* breakTotalExtra % breakCount */
143 INT GraphicsMode; /* Graphics mode */
144 INT DCOrgX; /* DC origin */
146 ABORTPROC pAbortProc; /* AbortProc for Printing */
147 INT CursPosX; /* Current position */
150 XFORM xformWorld2Wnd; /* World-to-window transformation */
151 XFORM xformWorld2Vport; /* World-to-viewport transformation */
152 XFORM xformVport2World; /* Inverse of the above transformation */
153 BOOL vport2WorldValid; /* Is xformVport2World valid? */
156 /* Device functions for the Wine driver interface */
158 typedef INT (*DEVICEFONTENUMPROC)(LPENUMLOGFONTEX16,LPNEWTEXTMETRIC16,UINT16,LPARAM);
160 typedef struct tagDC_FUNCS
162 INT (*pAbortDoc)(DC*);
163 BOOL (*pAbortPath)(DC*);
164 BOOL (*pAngleArc)(DC*,INT,INT,DWORD,FLOAT,FLOAT);
165 BOOL (*pArc)(DC*,INT,INT,INT,INT,INT,INT,INT,INT);
166 BOOL (*pArcTo)(DC*,INT,INT,INT,INT,INT,INT,INT,INT);
167 BOOL (*pBeginPath)(DC*);
168 BOOL (*pBitBlt)(DC*,INT,INT,INT,INT,DC*,INT,INT,DWORD);
169 LONG (*pBitmapBits)(HBITMAP,void*,LONG,WORD);
170 INT (*pChoosePixelFormat)(DC*,const PIXELFORMATDESCRIPTOR *);
171 BOOL (*pChord)(DC*,INT,INT,INT,INT,INT,INT,INT,INT);
172 BOOL (*pCloseFigure)(DC*);
173 BOOL (*pCreateBitmap)(HBITMAP);
174 BOOL (*pCreateDC)(DC*,LPCSTR,LPCSTR,LPCSTR,const DEVMODEA*);
175 HBITMAP (*pCreateDIBSection)(DC *,BITMAPINFO *,UINT,LPVOID *,HANDLE,
177 HBITMAP16 (*pCreateDIBSection16)(DC *,BITMAPINFO *,UINT16,SEGPTR *,HANDLE,
179 BOOL (*pDeleteDC)(DC*);
180 BOOL (*pDeleteObject)(HGDIOBJ);
181 INT (*pDescribePixelFormat)(DC *,INT,UINT,PIXELFORMATDESCRIPTOR *);
182 DWORD (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
183 BOOL (*pEllipse)(DC*,INT,INT,INT,INT);
185 INT (*pEndPage)(DC*);
186 BOOL (*pEndPath)(DC*);
187 BOOL (*pEnumDeviceFonts)(HDC,LPLOGFONT16,DEVICEFONTENUMPROC,LPARAM);
188 INT (*pEscape)(DC*,INT,INT,SEGPTR,SEGPTR);
189 INT (*pExcludeClipRect)(DC*,INT,INT,INT,INT);
190 INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,
192 BOOL (*pExtFloodFill)(DC*,INT,INT,COLORREF,UINT);
193 BOOL (*pExtTextOut)(DC*,INT,INT,UINT,const RECT*,LPCWSTR,UINT,
195 BOOL (*pFillPath)(DC*);
196 BOOL (*pFillRgn)(DC*,HRGN,HBRUSH);
197 BOOL (*pFlattenPath)(DC*);
198 BOOL (*pFrameRgn)(DC*,HRGN,HBRUSH,INT,INT);
199 BOOL (*pGetCharWidth)(DC*,UINT,UINT,LPINT);
200 BOOL (*pGetDCOrgEx)(DC*,LPPOINT);
201 COLORREF (*pGetPixel)(DC*,INT,INT);
202 INT (*pGetPixelFormat)(DC*);
203 BOOL (*pGetTextExtentPoint)(DC*,LPCWSTR,INT,LPSIZE);
204 BOOL (*pGetTextMetrics)(DC*,TEXTMETRICA*);
205 INT (*pIntersectClipRect)(DC*,INT,INT,INT,INT);
206 BOOL (*pInvertRgn)(DC*,HRGN);
207 BOOL (*pLineTo)(DC*,INT,INT);
208 BOOL (*pMoveTo)(DC*,INT,INT);
209 INT (*pOffsetClipRgn)(DC*,INT,INT);
210 BOOL (*pOffsetViewportOrg)(DC*,INT,INT);
211 BOOL (*pOffsetWindowOrg)(DC*,INT,INT);
212 BOOL (*pPaintRgn)(DC*,HRGN);
213 BOOL (*pPatBlt)(DC*,INT,INT,INT,INT,DWORD);
214 BOOL (*pPie)(DC*,INT,INT,INT,INT,INT,INT,INT,INT);
215 BOOL (*pPolyBezier)(DC*,const POINT*,DWORD);
216 BOOL (*pPolyBezierTo)(DC*,const POINT*,DWORD);
217 BOOL (*pPolyDraw)(DC*,const POINT*,const BYTE *,DWORD);
218 BOOL (*pPolyPolygon)(DC*,const POINT*,const INT*,UINT);
219 BOOL (*pPolyPolyline)(DC*,const POINT*,const DWORD*,DWORD);
220 BOOL (*pPolygon)(DC*,const POINT*,INT);
221 BOOL (*pPolyline)(DC*,const POINT*,INT);
222 BOOL (*pPolylineTo)(DC*,const POINT*,INT);
223 UINT (*pRealizePalette)(DC*);
224 BOOL (*pRectangle)(DC*,INT,INT,INT,INT);
225 BOOL (*pRestoreDC)(DC*,INT);
226 BOOL (*pRoundRect)(DC*,INT,INT,INT,INT,INT,INT);
228 BOOL (*pScaleViewportExt)(DC*,INT,INT,INT,INT);
229 BOOL (*pScaleWindowExt)(DC*,INT,INT,INT,INT);
230 BOOL (*pSelectClipPath)(DC*,INT);
231 INT (*pSelectClipRgn)(DC*,HRGN);
232 HANDLE (*pSelectObject)(DC*,HANDLE);
233 HPALETTE (*pSelectPalette)(DC*,HPALETTE,BOOL);
234 COLORREF (*pSetBkColor)(DC*,COLORREF);
235 INT (*pSetBkMode)(DC*,INT);
236 VOID (*pSetDeviceClipping)(DC*);
237 INT (*pSetDIBitsToDevice)(DC*,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,
238 LPCVOID,const BITMAPINFO*,UINT);
239 INT (*pSetMapMode)(DC*,INT);
240 DWORD (*pSetMapperFlags)(DC*,DWORD);
241 COLORREF (*pSetPixel)(DC*,INT,INT,COLORREF);
242 BOOL (*pSetPixelFormat)(DC*,INT,const PIXELFORMATDESCRIPTOR *);
243 INT (*pSetPolyFillMode)(DC*,INT);
244 INT (*pSetROP2)(DC*,INT);
245 INT (*pSetRelAbs)(DC*,INT);
246 INT (*pSetStretchBltMode)(DC*,INT);
247 UINT (*pSetTextAlign)(DC*,UINT);
248 INT (*pSetTextCharacterExtra)(DC*,INT);
249 DWORD (*pSetTextColor)(DC*,DWORD);
250 INT (*pSetTextJustification)(DC*,INT,INT);
251 BOOL (*pSetViewportExt)(DC*,INT,INT);
252 BOOL (*pSetViewportOrg)(DC*,INT,INT);
253 BOOL (*pSetWindowExt)(DC*,INT,INT);
254 BOOL (*pSetWindowOrg)(DC*,INT,INT);
255 INT (*pStartDoc)(DC*,const DOCINFOA*);
256 INT (*pStartPage)(DC*);
257 BOOL (*pStretchBlt)(DC*,INT,INT,INT,INT,DC*,INT,INT,INT,INT,DWORD);
258 INT (*pStretchDIBits)(DC*,INT,INT,INT,INT,INT,INT,INT,INT,
259 const void *,const BITMAPINFO *,UINT,DWORD);
260 BOOL (*pStrokeAndFillPath)(DC*);
261 BOOL (*pStrokePath)(DC*);
262 BOOL (*pSwapBuffers)(DC*);
263 BOOL (*pWidenPath)(DC*);
266 /* LoadOEMResource types */
272 #define DCHC_INVALIDVISRGN 0x0001
273 #define DCHC_DELETEDC 0x0002
275 #define DCHF_INVALIDATEVISRGN 0x0001
276 #define DCHF_VALIDATEVISRGN 0x0002
279 #define DC_MEMORY 0x0001 /* It is a memory DC */
280 #define DC_SAVED 0x0002 /* It is a saved DC */
281 #define DC_DIRTY 0x0004 /* hVisRgn has to be updated */
282 #define DC_THUNKHOOK 0x0008 /* DC hook is in the 16-bit code */
284 /* Last 32 bytes are reserved for stock object handles */
285 #define GDI_HEAP_SIZE 0xffe0
287 /* First handle possible for stock objects (must be >= GDI_HEAP_SIZE) */
288 #define FIRST_STOCK_HANDLE GDI_HEAP_SIZE
290 /* Stock objects handles */
292 #define NB_STOCK_OBJECTS (DEFAULT_GUI_FONT + 1)
294 #define STOCK_WHITE_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+WHITE_BRUSH))
295 #define STOCK_LTGRAY_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+LTGRAY_BRUSH))
296 #define STOCK_GRAY_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+GRAY_BRUSH))
297 #define STOCK_DKGRAY_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+DKGRAY_BRUSH))
298 #define STOCK_BLACK_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+BLACK_BRUSH))
299 #define STOCK_NULL_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+NULL_BRUSH))
300 #define STOCK_HOLLOW_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+HOLLOW_BRUSH))
301 #define STOCK_WHITE_PEN ((HPEN16)(FIRST_STOCK_HANDLE+WHITE_PEN))
302 #define STOCK_BLACK_PEN ((HPEN16)(FIRST_STOCK_HANDLE+BLACK_PEN))
303 #define STOCK_NULL_PEN ((HPEN16)(FIRST_STOCK_HANDLE+NULL_PEN))
304 #define STOCK_OEM_FIXED_FONT ((HFONT16)(FIRST_STOCK_HANDLE+OEM_FIXED_FONT))
305 #define STOCK_ANSI_FIXED_FONT ((HFONT16)(FIRST_STOCK_HANDLE+ANSI_FIXED_FONT))
306 #define STOCK_ANSI_VAR_FONT ((HFONT16)(FIRST_STOCK_HANDLE+ANSI_VAR_FONT))
307 #define STOCK_SYSTEM_FONT ((HFONT16)(FIRST_STOCK_HANDLE+SYSTEM_FONT))
308 #define STOCK_DEVICE_DEFAULT_FONT ((HFONT16)(FIRST_STOCK_HANDLE+DEVICE_DEFAULT_FONT))
309 #define STOCK_DEFAULT_PALETTE ((HPALETTE16)(FIRST_STOCK_HANDLE+DEFAULT_PALETTE))
310 #define STOCK_SYSTEM_FIXED_FONT ((HFONT16)(FIRST_STOCK_HANDLE+SYSTEM_FIXED_FONT))
311 #define STOCK_DEFAULT_GUI_FONT ((HFONT16)(FIRST_STOCK_HANDLE+DEFAULT_GUI_FONT))
313 #define FIRST_STOCK_FONT STOCK_OEM_FIXED_FONT
314 #define LAST_STOCK_FONT STOCK_DEFAULT_GUI_FONT
316 #define LAST_STOCK_HANDLE ((DWORD)STOCK_DEFAULT_GUI_FONT)
318 extern HBITMAP hPseudoStockBitmap;
320 /* Device <-> logical coords conversion */
322 /* A floating point version of the POINT structure */
323 typedef struct tagFLOAT_POINT
328 /* Rounds a floating point number to integer. The world-to-viewport
329 * transformation process is done in floating point internally. This function
330 * is then used to round these coordinates to integer values.
332 static inline INT WINE_UNUSED GDI_ROUND(FLOAT val)
334 return (int)floor(val + 0.5);
337 /* Performs a viewport-to-world transformation on the specified point (which
338 * is in floating point format). Returns TRUE if successful, else FALSE.
340 static inline BOOL WINE_UNUSED INTERNAL_DPTOLP_FLOAT(DC *dc, FLOAT_POINT *point)
344 /* Check that the viewport-to-world transformation is valid */
345 if (!dc->vport2WorldValid)
348 /* Perform the transformation */
351 point->x = x * dc->xformVport2World.eM11 +
352 y * dc->xformVport2World.eM21 +
353 dc->xformVport2World.eDx;
354 point->y = x * dc->xformVport2World.eM12 +
355 y * dc->xformVport2World.eM22 +
356 dc->xformVport2World.eDy;
361 /* Performs a viewport-to-world transformation on the specified point (which
362 * is in integer format). Returns TRUE if successful, else FALSE.
364 static inline BOOL WINE_UNUSED INTERNAL_DPTOLP(DC *dc, LPPOINT point)
366 FLOAT_POINT floatPoint;
368 /* Perform operation with floating point */
369 floatPoint.x=(FLOAT)point->x;
370 floatPoint.y=(FLOAT)point->y;
371 if (!INTERNAL_DPTOLP_FLOAT(dc, &floatPoint))
374 /* Round to integers */
375 point->x = GDI_ROUND(floatPoint.x);
376 point->y = GDI_ROUND(floatPoint.y);
381 /* Performs a world-to-viewport transformation on the specified point (which
382 * is in floating point format).
384 static inline void WINE_UNUSED INTERNAL_LPTODP_FLOAT(DC *dc, FLOAT_POINT *point)
388 /* Perform the transformation */
391 point->x = x * dc->xformWorld2Vport.eM11 +
392 y * dc->xformWorld2Vport.eM21 +
393 dc->xformWorld2Vport.eDx;
394 point->y = x * dc->xformWorld2Vport.eM12 +
395 y * dc->xformWorld2Vport.eM22 +
396 dc->xformWorld2Vport.eDy;
399 /* Performs a world-to-viewport transformation on the specified point (which
400 * is in integer format).
402 static inline void WINE_UNUSED INTERNAL_LPTODP(DC *dc, LPPOINT point)
404 FLOAT_POINT floatPoint;
406 /* Perform operation with floating point */
407 floatPoint.x=(FLOAT)point->x;
408 floatPoint.y=(FLOAT)point->y;
409 INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
411 /* Round to integers */
412 point->x = GDI_ROUND(floatPoint.x);
413 point->y = GDI_ROUND(floatPoint.y);
416 #define XDPTOLP(dc,x) \
417 (MulDiv(((x)-(dc)->vportOrgX), (dc)->wndExtX, (dc)->vportExtX) + (dc)->wndOrgX)
418 #define YDPTOLP(dc,y) \
419 (MulDiv(((y)-(dc)->vportOrgY), (dc)->wndExtY, (dc)->vportExtY) + (dc)->wndOrgY)
420 #define XLPTODP(dc,x) \
421 (MulDiv(((x)-(dc)->wndOrgX), (dc)->vportExtX, (dc)->wndExtX) + (dc)->vportOrgX)
422 #define YLPTODP(dc,y) \
423 (MulDiv(((y)-(dc)->wndOrgY), (dc)->vportExtY, (dc)->wndExtY) + (dc)->vportOrgY)
425 /* Device <-> logical size conversion */
427 #define XDSTOLS(dc,x) \
428 MulDiv((x), (dc)->wndExtX, (dc)->vportExtX)
429 #define YDSTOLS(dc,y) \
430 MulDiv((y), (dc)->wndExtY, (dc)->vportExtY)
431 #define XLSTODS(dc,x) \
432 MulDiv((x), (dc)->vportExtX, (dc)->wndExtX)
433 #define YLSTODS(dc,y) \
434 MulDiv((y), (dc)->vportExtY, (dc)->wndExtY)
438 extern BOOL GDI_Init(void);
439 extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ * );
440 extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
441 extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
442 extern void *GDI_GetObjPtr( HGDIOBJ, WORD );
443 extern void GDI_ReleaseObj( HGDIOBJ );
445 extern BOOL DRIVER_RegisterDriver( LPCSTR name, const DC_FUNCTIONS *funcs );
446 extern const DC_FUNCTIONS *DRIVER_FindDriver( LPCSTR name );
447 extern BOOL DRIVER_UnregisterDriver( LPCSTR name );
448 extern BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size );
450 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
452 extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs );
453 extern DC * DC_GetDCPtr( HDC hdc );
454 extern DC * DC_GetDCUpdate( HDC hdc );
455 extern void DC_InitDC( DC * dc );
456 extern void DC_UpdateXforms( DC * dc );
459 #define CLIP_INTERSECT 0x0001
460 #define CLIP_EXCLUDE 0x0002
461 #define CLIP_KEEPRGN 0x0004
463 /* objects/clipping.c */
464 INT CLIPPING_IntersectClipRect( DC * dc, INT left, INT top,
465 INT right, INT bottom, UINT flags );
466 INT CLIPPING_IntersectVisRect( DC * dc, INT left, INT top,
467 INT right, INT bottom, BOOL exclude );
468 extern void CLIPPING_UpdateGCRegion( DC * dc );
470 #endif /* __WINE_GDI_H */