source: trunk/include/win/gdi.h@ 4

Last change on this file since 4 was 4, checked in by ktk, 26 years ago

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1/* $Id: gdi.h,v 1.1 1999-05-24 20:19:12 ktk Exp $ */
2
3/*
4 * GDI definitions
5 *
6 * Copyright 1993 Alexandre Julliard
7 */
8
9#ifndef __WINE_GDI_H
10#define __WINE_GDI_H
11
12#include "windef.h"
13#include "wingdi.h"
14#include "ldt.h"
15#include "local.h"
16#include "path.h"
17#include <math.h>
18
19 /* GDI objects magic numbers */
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
34#define MAGIC_DONTCARE 0xffff
35
36typedef struct tagGDIOBJHDR
37{
38 HANDLE16 hNext;
39 WORD wMagic;
40 DWORD dwCount;
41} GDIOBJHDR;
42
43
44typedef struct tagDeviceCaps
45{
46 WORD version; /* 0: driver version */
47 WORD technology; /* 2: device technology */
48 WORD horzSize; /* 4: width of display in mm */
49 WORD vertSize; /* 6: height of display in mm */
50 WORD horzRes; /* 8: width of display in pixels */
51 WORD vertRes; /* 10: width of display in pixels */
52 WORD bitsPixel; /* 12: bits per pixel */
53 WORD planes; /* 14: color planes */
54 WORD numBrushes; /* 16: device-specific brushes */
55 WORD numPens; /* 18: device-specific pens */
56 WORD numMarkers; /* 20: device-specific markers */
57 WORD numFonts; /* 22: device-specific fonts */
58 WORD numColors; /* 24: size of color table */
59 WORD pdeviceSize; /* 26: size of PDEVICE structure */
60 WORD curveCaps; /* 28: curve capabilities */
61 WORD lineCaps; /* 30: line capabilities */
62 WORD polygonalCaps; /* 32: polygon capabilities */
63 WORD textCaps; /* 34: text capabilities */
64 WORD clipCaps; /* 36: clipping capabilities */
65 WORD rasterCaps; /* 38: raster capabilities */
66 WORD aspectX; /* 40: relative width of device pixel */
67 WORD aspectY; /* 42: relative height of device pixel */
68 WORD aspectXY; /* 44: relative diagonal width of device pixel */
69 WORD pad1[21]; /* 46-86: reserved */
70 WORD logPixelsX; /* 88: pixels / logical X inch */
71 WORD logPixelsY; /* 90: pixels / logical Y inch */
72 WORD pad2[6]; /* 92-102: reserved */
73 WORD sizePalette; /* 104: entries in system palette */
74 WORD numReserved; /* 106: reserved entries */
75 WORD colorRes; /* 108: color resolution */
76} DeviceCaps;
77
78typedef struct tagGDI_DRIVER
79{
80 BOOL (*pInitialize)(void);
81 void (*pFinalize)(void);
82} GDI_DRIVER;
83
84extern GDI_DRIVER *GDI_Driver;
85
86 /* Device independent DC information */
87typedef struct
88{
89 int flags;
90 const DeviceCaps *devCaps;
91
92 HRGN16 hClipRgn; /* Clip region (may be 0) */
93 HRGN16 hVisRgn; /* Visible region (must never be 0) */
94 HRGN16 hGCClipRgn; /* GC clip region (ClipRgn AND VisRgn) */
95 HPEN16 hPen;
96 HBRUSH16 hBrush;
97 HFONT16 hFont;
98 HBITMAP16 hBitmap;
99 HBITMAP16 hFirstBitmap; /* Bitmap selected at creation of the DC */
100 HANDLE16 hDevice;
101 HPALETTE16 hPalette;
102
103 GdiPath path;
104
105 WORD ROPmode;
106 WORD polyFillMode;
107 WORD stretchBltMode;
108 WORD relAbsMode;
109 WORD backgroundMode;
110 COLORREF backgroundColor;
111 COLORREF textColor;
112 short brushOrgX;
113 short brushOrgY;
114
115 WORD textAlign; /* Text alignment from SetTextAlign() */
116 short charExtra; /* Spacing from SetTextCharacterExtra() */
117 short breakTotalExtra; /* Total extra space for justification */
118 short breakCount; /* Break char. count */
119 short breakExtra; /* breakTotalExtra / breakCount */
120 short breakRem; /* breakTotalExtra % breakCount */
121
122 RECT totalExtent;
123 BYTE bitsPerPixel;
124
125 INT MapMode;
126 INT GraphicsMode; /* Graphics mode */
127 INT DCOrgX; /* DC origin */
128 INT DCOrgY;
129 FARPROC16 lpfnPrint; /* AbortProc for Printing */
130 INT CursPosX; /* Current position */
131 INT CursPosY;
132 INT ArcDirection;
133 XFORM xformWorld2Wnd; /* World-to-window transformation */
134 XFORM xformWorld2Vport; /* World-to-viewport transformation */
135 XFORM xformVport2World; /* Inverse of the above transformation */
136 BOOL vport2WorldValid; /* Is xformVport2World valid? */
137} WIN_DC_INFO;
138
139typedef struct tagDC
140{
141 GDIOBJHDR header;
142 HDC hSelf; /* Handle to this DC */
143 const struct tagDC_FUNCS *funcs; /* DC function table */
144 void *physDev; /* Physical device (driver-specific) */
145 INT saveLevel;
146 DWORD dwHookData;
147 FARPROC16 hookProc;
148
149 INT wndOrgX; /* Window origin */
150 INT wndOrgY;
151 INT wndExtX; /* Window extent */
152 INT wndExtY;
153 INT vportOrgX; /* Viewport origin */
154 INT vportOrgY;
155 INT vportExtX; /* Viewport extent */
156 INT vportExtY;
157
158 WIN_DC_INFO w;
159} DC;
160
161/* Device functions for the Wine driver interface */
162
163typedef INT (*DEVICEFONTENUMPROC)(LPENUMLOGFONT16,LPNEWTEXTMETRIC16,UINT16,LPARAM);
164
165typedef struct tagDC_FUNCS
166{
167 BOOL (*pArc)(DC*,INT,INT,INT,INT,INT,INT,INT,INT);
168 BOOL (*pBitBlt)(DC*,INT,INT,INT,INT,DC*,INT,INT,DWORD);
169 LONG (*pBitmapBits)(HBITMAP,void*,LONG,WORD);
170 BOOL (*pChord)(DC*,INT,INT,INT,INT,INT,INT,INT,INT);
171 BOOL (*pCreateBitmap)(HBITMAP);
172 BOOL (*pCreateDC)(DC*,LPCSTR,LPCSTR,LPCSTR,const DEVMODE16*);
173 BOOL (*pDeleteDC)(DC*);
174 HBITMAP (*pCreateDIBSection)(DC *,BITMAPINFO *,UINT,LPVOID *,HANDLE,
175 DWORD);
176 HBITMAP16 (*pCreateDIBSection16)(DC *,BITMAPINFO *,UINT16,SEGPTR *,HANDLE,
177 DWORD);
178 BOOL (*pDeleteObject)(HGDIOBJ);
179 BOOL (*pEllipse)(DC*,INT,INT,INT,INT);
180 BOOL (*pEnumDeviceFonts)(DC*,LPLOGFONT16,DEVICEFONTENUMPROC,LPARAM);
181 INT (*pEscape)(DC*,INT,INT,SEGPTR,SEGPTR);
182 INT (*pExcludeClipRect)(DC*,INT,INT,INT,INT);
183 BOOL (*pExtFloodFill)(DC*,INT,INT,COLORREF,UINT);
184 BOOL (*pExtTextOut)(DC*,INT,INT,UINT,const RECT*,LPCSTR,UINT,
185 const INT*);
186 BOOL (*pFillRgn)(DC*,HRGN,HBRUSH);
187 BOOL (*pFrameRgn)(DC*,HRGN,HBRUSH,INT,INT);
188 BOOL (*pGetCharWidth)(DC*,UINT,UINT,LPINT);
189 COLORREF (*pGetPixel)(DC*,INT,INT);
190 BOOL (*pGetTextExtentPoint)(DC*,LPCSTR,INT,LPSIZE);
191 BOOL (*pGetTextMetrics)(DC*,TEXTMETRICA*);
192 INT (*pIntersectClipRect)(DC*,INT,INT,INT,INT);
193 BOOL (*pInvertRgn)(DC*,HRGN);
194 BOOL (*pLineTo)(DC*,INT,INT);
195 HANDLE (*pLoadOEMResource)(WORD,WORD);
196 BOOL (*pMoveToEx)(DC*,INT,INT,LPPOINT);
197 INT (*pOffsetClipRgn)(DC*,INT,INT);
198 BOOL (*pOffsetViewportOrg)(DC*,INT,INT);
199 BOOL (*pOffsetWindowOrg)(DC*,INT,INT);
200 BOOL (*pPaintRgn)(DC*,HRGN);
201 BOOL (*pPatBlt)(DC*,INT,INT,INT,INT,DWORD);
202 BOOL (*pPie)(DC*,INT,INT,INT,INT,INT,INT,INT,INT);
203 BOOL (*pPolyPolygon)(DC*,const POINT*,const INT*,UINT);
204 BOOL (*pPolyPolyline)(DC*,const POINT*,const DWORD*,DWORD);
205 BOOL (*pPolygon)(DC*,const POINT*,INT);
206 BOOL (*pPolyline)(DC*,const POINT*,INT);
207 BOOL (*pPolyBezier)(DC*,POINT, const POINT*,DWORD);
208 UINT (*pRealizePalette)(DC*);
209 BOOL (*pRectangle)(DC*,INT,INT,INT,INT);
210 BOOL (*pRestoreDC)(DC*,INT);
211 BOOL (*pRoundRect)(DC*,INT,INT,INT,INT,INT,INT);
212 INT (*pSaveDC)(DC*);
213 BOOL (*pScaleViewportExt)(DC*,INT,INT,INT,INT);
214 BOOL (*pScaleWindowExt)(DC*,INT,INT,INT,INT);
215 INT (*pSelectClipRgn)(DC*,HRGN);
216 HANDLE (*pSelectObject)(DC*,HANDLE);
217 HPALETTE (*pSelectPalette)(DC*,HPALETTE,BOOL);
218 COLORREF (*pSetBkColor)(DC*,COLORREF);
219 INT (*pSetBkMode)(DC*,INT);
220 VOID (*pSetDeviceClipping)(DC*);
221 INT (*pSetDIBitsToDevice)(DC*,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,
222 LPCVOID,const BITMAPINFO*,UINT);
223 INT (*pSetMapMode)(DC*,INT);
224 DWORD (*pSetMapperFlags)(DC*,DWORD);
225 COLORREF (*pSetPixel)(DC*,INT,INT,COLORREF);
226 INT (*pSetPolyFillMode)(DC*,INT);
227 INT (*pSetROP2)(DC*,INT);
228 INT (*pSetRelAbs)(DC*,INT);
229 INT (*pSetStretchBltMode)(DC*,INT);
230 UINT (*pSetTextAlign)(DC*,UINT);
231 INT (*pSetTextCharacterExtra)(DC*,INT);
232 DWORD (*pSetTextColor)(DC*,DWORD);
233 INT (*pSetTextJustification)(DC*,INT,INT);
234 BOOL (*pSetViewportExt)(DC*,INT,INT);
235 BOOL (*pSetViewportOrg)(DC*,INT,INT);
236 BOOL (*pSetWindowExt)(DC*,INT,INT);
237 BOOL (*pSetWindowOrg)(DC*,INT,INT);
238 BOOL (*pStretchBlt)(DC*,INT,INT,INT,INT,DC*,INT,INT,INT,INT,DWORD);
239 INT (*pStretchDIBits)(DC*,INT,INT,INT,INT,INT,INT,INT,INT,
240 const void *,const BITMAPINFO *,UINT,DWORD);
241} DC_FUNCTIONS;
242
243 /* LoadOEMResource types */
244#define OEM_BITMAP 1
245#define OEM_CURSOR 2
246#define OEM_ICON 3
247
248 /* DC hook codes */
249#define DCHC_INVALIDVISRGN 0x0001
250#define DCHC_DELETEDC 0x0002
251
252#define DCHF_INVALIDATEVISRGN 0x0001
253#define DCHF_VALIDATEVISRGN 0x0002
254
255 /* DC flags */
256#define DC_MEMORY 0x0001 /* It is a memory DC */
257#define DC_SAVED 0x0002 /* It is a saved DC */
258#define DC_DIRTY 0x0004 /* hVisRgn has to be updated */
259#define DC_THUNKHOOK 0x0008 /* DC hook is in the 16-bit code */
260
261 /* Last 32 bytes are reserved for stock object handles */
262#define GDI_HEAP_SIZE 0xffe0
263
264 /* First handle possible for stock objects (must be >= GDI_HEAP_SIZE) */
265#define FIRST_STOCK_HANDLE GDI_HEAP_SIZE
266
267 /* Stock objects handles */
268
269#define NB_STOCK_OBJECTS (DEFAULT_GUI_FONT + 1)
270
271#define STOCK_WHITE_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+WHITE_BRUSH))
272#define STOCK_LTGRAY_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+LTGRAY_BRUSH))
273#define STOCK_GRAY_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+GRAY_BRUSH))
274#define STOCK_DKGRAY_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+DKGRAY_BRUSH))
275#define STOCK_BLACK_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+BLACK_BRUSH))
276#define STOCK_NULL_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+NULL_BRUSH))
277#define STOCK_HOLLOW_BRUSH ((HBRUSH16)(FIRST_STOCK_HANDLE+HOLLOW_BRUSH))
278#define STOCK_WHITE_PEN ((HPEN16)(FIRST_STOCK_HANDLE+WHITE_PEN))
279#define STOCK_BLACK_PEN ((HPEN16)(FIRST_STOCK_HANDLE+BLACK_PEN))
280#define STOCK_NULL_PEN ((HPEN16)(FIRST_STOCK_HANDLE+NULL_PEN))
281#define STOCK_OEM_FIXED_FONT ((HFONT16)(FIRST_STOCK_HANDLE+OEM_FIXED_FONT))
282#define STOCK_ANSI_FIXED_FONT ((HFONT16)(FIRST_STOCK_HANDLE+ANSI_FIXED_FONT))
283#define STOCK_ANSI_VAR_FONT ((HFONT16)(FIRST_STOCK_HANDLE+ANSI_VAR_FONT))
284#define STOCK_SYSTEM_FONT ((HFONT16)(FIRST_STOCK_HANDLE+SYSTEM_FONT))
285#define STOCK_DEVICE_DEFAULT_FONT ((HFONT16)(FIRST_STOCK_HANDLE+DEVICE_DEFAULT_FONT))
286#define STOCK_DEFAULT_PALETTE ((HPALETTE16)(FIRST_STOCK_HANDLE+DEFAULT_PALETTE))
287#define STOCK_SYSTEM_FIXED_FONT ((HFONT16)(FIRST_STOCK_HANDLE+SYSTEM_FIXED_FONT))
288#define STOCK_DEFAULT_GUI_FONT ((HFONT16)(FIRST_STOCK_HANDLE+DEFAULT_GUI_FONT))
289
290#define FIRST_STOCK_FONT STOCK_OEM_FIXED_FONT
291#define LAST_STOCK_FONT STOCK_DEFAULT_GUI_FONT
292
293#define LAST_STOCK_HANDLE ((DWORD)STOCK_DEFAULT_GUI_FONT)
294
295 /* Device <-> logical coords conversion */
296
297/* A floating point version of the POINT structure */
298typedef struct tagFLOAT_POINT
299{
300 FLOAT x, y;
301} FLOAT_POINT;
302
303/* Rounds a floating point number to integer. The world-to-viewport
304 * transformation process is done in floating point internally. This function
305 * is then used to round these coordinates to integer values.
306 */
307static __inline__ INT WINE_UNUSED GDI_ROUND(FLOAT val)
308{
309 return (int)floor(val + 0.5);
310}
311
312/* Performs a viewport-to-world transformation on the specified point (which
313 * is in floating point format). Returns TRUE if successful, else FALSE.
314 */
315static __inline__ BOOL WINE_UNUSED INTERNAL_DPTOLP_FLOAT(DC *dc, FLOAT_POINT *point)
316{
317 FLOAT x, y;
318
319 /* Check that the viewport-to-world transformation is valid */
320 if (!dc->w.vport2WorldValid)
321 return FALSE;
322
323 /* Perform the transformation */
324 x = point->x;
325 y = point->y;
326 point->x = x * dc->w.xformVport2World.eM11 +
327 y * dc->w.xformVport2World.eM21 +
328 dc->w.xformVport2World.eDx;
329 point->y = x * dc->w.xformVport2World.eM12 +
330 y * dc->w.xformVport2World.eM22 +
331 dc->w.xformVport2World.eDy;
332
333 return TRUE;
334}
335
336/* Performs a viewport-to-world transformation on the specified point (which
337 * is in integer format). Returns TRUE if successful, else FALSE.
338 */
339static __inline__ BOOL WINE_UNUSED INTERNAL_DPTOLP(DC *dc, LPPOINT point)
340{
341 FLOAT_POINT floatPoint;
342
343 /* Perform operation with floating point */
344 floatPoint.x=(FLOAT)point->x;
345 floatPoint.y=(FLOAT)point->y;
346 if (!INTERNAL_DPTOLP_FLOAT(dc, &floatPoint))
347 return FALSE;
348
349 /* Round to integers */
350 point->x = GDI_ROUND(floatPoint.x);
351 point->y = GDI_ROUND(floatPoint.y);
352
353 return TRUE;
354}
355
356/* Performs a world-to-viewport transformation on the specified point (which
357 * is in floating point format).
358 */
359static __inline__ void WINE_UNUSED INTERNAL_LPTODP_FLOAT(DC *dc, FLOAT_POINT *point)
360{
361 FLOAT x, y;
362
363 /* Perform the transformation */
364 x = point->x;
365 y = point->y;
366 point->x = x * dc->w.xformWorld2Vport.eM11 +
367 y * dc->w.xformWorld2Vport.eM21 +
368 dc->w.xformWorld2Vport.eDx;
369 point->y = x * dc->w.xformWorld2Vport.eM12 +
370 y * dc->w.xformWorld2Vport.eM22 +
371 dc->w.xformWorld2Vport.eDy;
372}
373
374/* Performs a world-to-viewport transformation on the specified point (which
375 * is in integer format).
376 */
377static __inline__ void WINE_UNUSED INTERNAL_LPTODP(DC *dc, LPPOINT point)
378{
379 FLOAT_POINT floatPoint;
380
381 /* Perform operation with floating point */
382 floatPoint.x=(FLOAT)point->x;
383 floatPoint.y=(FLOAT)point->y;
384 INTERNAL_LPTODP_FLOAT(dc, &floatPoint);
385
386 /* Round to integers */
387 point->x = GDI_ROUND(floatPoint.x);
388 point->y = GDI_ROUND(floatPoint.y);
389}
390
391#define XDPTOLP(dc,x) \
392 (((x)-(dc)->vportOrgX) * (dc)->wndExtX / (dc)->vportExtX+(dc)->wndOrgX)
393#define YDPTOLP(dc,y) \
394 (((y)-(dc)->vportOrgY) * (dc)->wndExtY / (dc)->vportExtY+(dc)->wndOrgY)
395#define XLPTODP(dc,x) \
396 (((x)-(dc)->wndOrgX) * (dc)->vportExtX / (dc)->wndExtX+(dc)->vportOrgX)
397#define YLPTODP(dc,y) \
398 (((y)-(dc)->wndOrgY) * (dc)->vportExtY / (dc)->wndExtY+(dc)->vportOrgY)
399
400 /* Device <-> logical size conversion */
401
402#define XDSTOLS(dc,x) \
403 ((x) * (dc)->wndExtX / (dc)->vportExtX)
404#define YDSTOLS(dc,y) \
405 ((y) * (dc)->wndExtY / (dc)->vportExtY)
406#define XLSTODS(dc,x) \
407 ((x) * (dc)->vportExtX / (dc)->wndExtX)
408#define YLSTODS(dc,y) \
409 ((y) * (dc)->vportExtY / (dc)->wndExtY)
410
411 /* GDI local heap */
412
413extern WORD GDI_HeapSel;
414
415#define GDI_HEAP_ALLOC(size) \
416 LOCAL_Alloc( GDI_HeapSel, LMEM_FIXED, (size) )
417#define GDI_HEAP_ALLOC_MOVEABLE(size) \
418 LOCAL_Alloc( GDI_HeapSel, LMEM_MOVEABLE, (size) )
419#define GDI_HEAP_REALLOC(handle,size) \
420 LOCAL_ReAlloc( GDI_HeapSel, (handle), (size), LMEM_FIXED )
421#define GDI_HEAP_FREE(handle) \
422 LOCAL_Free( GDI_HeapSel, (handle) )
423
424#define GDI_HEAP_LOCK(handle) \
425 LOCAL_Lock( GDI_HeapSel, (handle) )
426#define GDI_HEAP_LOCK_SEGPTR(handle) \
427 LOCAL_LockSegptr( GDI_HeapSel, (handle) )
428#define GDI_HEAP_UNLOCK(handle) \
429 ((((HGDIOBJ16)(handle) >= FIRST_STOCK_HANDLE) && \
430 ((HGDIOBJ16)(handle)<=LAST_STOCK_HANDLE)) ? \
431 0 : LOCAL_Unlock( GDI_HeapSel, (handle) ))
432
433extern BOOL GDI_Init(void);
434extern HGDIOBJ16 GDI_AllocObject( WORD, WORD );
435extern BOOL GDI_FreeObject( HGDIOBJ16 );
436extern GDIOBJHDR * GDI_GetObjPtr( HGDIOBJ16, WORD );
437
438extern BOOL DRIVER_RegisterDriver( LPCSTR name, const DC_FUNCTIONS *funcs );
439extern const DC_FUNCTIONS *DRIVER_FindDriver( LPCSTR name );
440extern BOOL DRIVER_UnregisterDriver( LPCSTR name );
441
442#endif /* __WINE_GDI_H */
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