4 * Copyright 1993 Alexandre Julliard
25 /* Object types for EnumObjects() */
29 /***********************************************************************
33 static BRUSHOBJ WhiteBrush
=
35 { 0, BRUSH_MAGIC
, 1, 0 }, /* header */
36 { BS_SOLID
, RGB(255,255,255), 0 } /* logbrush */
39 static BRUSHOBJ LtGrayBrush
=
41 { 0, BRUSH_MAGIC
, 1, 0 }, /* header */
42 { BS_SOLID
, RGB(192,192,192), 0 } /* logbrush */
45 static BRUSHOBJ GrayBrush
=
47 { 0, BRUSH_MAGIC
, 1, 0 }, /* header */
48 { BS_SOLID
, RGB(128,128,128), 0 } /* logbrush */
51 static BRUSHOBJ DkGrayBrush
=
53 { 0, BRUSH_MAGIC
, 1, 0 }, /* header */
54 { BS_SOLID
, RGB(64,64,64), 0 } /* logbrush */
57 static BRUSHOBJ BlackBrush
=
59 { 0, BRUSH_MAGIC
, 1, 0 }, /* header */
60 { BS_SOLID
, RGB(0,0,0), 0 } /* logbrush */
63 static BRUSHOBJ NullBrush
=
65 { 0, BRUSH_MAGIC
, 1, 0 }, /* header */
66 { BS_NULL
, 0, 0 } /* logbrush */
69 static PENOBJ WhitePen
=
71 { 0, PEN_MAGIC
, 1, 0 }, /* header */
72 { PS_SOLID
, { 1, 0 }, RGB(255,255,255) } /* logpen */
75 static PENOBJ BlackPen
=
77 { 0, PEN_MAGIC
, 1, 0 }, /* header */
78 { PS_SOLID
, { 1, 0 }, RGB(0,0,0) } /* logpen */
81 static PENOBJ NullPen
=
83 { 0, PEN_MAGIC
, 1, 0 }, /* header */
84 { PS_NULL
, { 1, 0 }, 0 } /* logpen */
87 static FONTOBJ OEMFixedFont
=
89 { 0, FONT_MAGIC
, 1, 0 }, /* header */
90 { 12, 0, 0, 0, FW_NORMAL
, FALSE
, FALSE
, FALSE
, OEM_CHARSET
,
91 0, 0, DEFAULT_QUALITY
, FIXED_PITCH
| FF_MODERN
, "" }
94 static FONTOBJ AnsiFixedFont
=
96 { 0, FONT_MAGIC
, 1, 0 }, /* header */
97 { 12, 0, 0, 0, FW_NORMAL
, FALSE
, FALSE
, FALSE
, ANSI_CHARSET
,
98 0, 0, DEFAULT_QUALITY
, FIXED_PITCH
| FF_MODERN
, "" }
101 static FONTOBJ AnsiVarFont
=
103 { 0, FONT_MAGIC
, 1, 0 }, /* header */
104 { 12, 0, 0, 0, FW_NORMAL
, FALSE
, FALSE
, FALSE
, ANSI_CHARSET
,
105 0, 0, DEFAULT_QUALITY
, VARIABLE_PITCH
| FF_SWISS
, "" }
108 static FONTOBJ SystemFont
=
110 { 0, FONT_MAGIC
, 1, 0 }, /* header */
111 { 12, 0, 0, 0, FW_NORMAL
, FALSE
, FALSE
, FALSE
, ANSI_CHARSET
,
112 0, 0, DEFAULT_QUALITY
, VARIABLE_PITCH
| FF_SWISS
, "" }
115 static FONTOBJ DeviceDefaultFont
=
117 { 0, FONT_MAGIC
, 1, 0 }, /* header */
118 { 12, 0, 0, 0, FW_NORMAL
, FALSE
, FALSE
, FALSE
, ANSI_CHARSET
,
119 0, 0, DEFAULT_QUALITY
, VARIABLE_PITCH
| FF_SWISS
, "" }
122 static FONTOBJ SystemFixedFont
=
124 { 0, FONT_MAGIC
, 1, 0 }, /* header */
125 { 12, 0, 0, 0, FW_NORMAL
, FALSE
, FALSE
, FALSE
, ANSI_CHARSET
,
126 0, 0, DEFAULT_QUALITY
, FIXED_PITCH
| FF_MODERN
, "" }
130 static GDIOBJHDR
* StockObjects
[NB_STOCK_OBJECTS
] =
132 (GDIOBJHDR
*) &WhiteBrush
,
133 (GDIOBJHDR
*) &LtGrayBrush
,
134 (GDIOBJHDR
*) &GrayBrush
,
135 (GDIOBJHDR
*) &DkGrayBrush
,
136 (GDIOBJHDR
*) &BlackBrush
,
137 (GDIOBJHDR
*) &NullBrush
,
138 (GDIOBJHDR
*) &WhitePen
,
139 (GDIOBJHDR
*) &BlackPen
,
140 (GDIOBJHDR
*) &NullPen
,
142 (GDIOBJHDR
*) &OEMFixedFont
,
143 (GDIOBJHDR
*) &AnsiFixedFont
,
144 (GDIOBJHDR
*) &AnsiVarFont
,
145 (GDIOBJHDR
*) &SystemFont
,
146 (GDIOBJHDR
*) &DeviceDefaultFont
,
147 NULL
, /* DEFAULT_PALETTE created by COLOR_Init */
148 (GDIOBJHDR
*) &SystemFixedFont
151 static FARPROC16 defDCHookCallback
;
154 /***********************************************************************
157 * GDI initialization.
159 BOOL32
GDI_Init(void)
163 defDCHookCallback
= (FARPROC16
)MODULE_GetEntryPoint(GetModuleHandle("USER"),
165 dprintf_gdi( stddeb
, "DCHook: 16-bit callback is %08x\n",
166 (unsigned)defDCHookCallback
);
168 /* Create default palette */
170 if (!(hpalette
= COLOR_Init())) return FALSE
;
171 StockObjects
[DEFAULT_PALETTE
] = (GDIOBJHDR
*)GDI_HEAP_LIN_ADDR( hpalette
);
173 /* Create default bitmap */
175 if (!BITMAP_Init()) return FALSE
;
177 /* Initialize brush dithering */
179 if (!BRUSH_Init()) return FALSE
;
181 /* Initialize fonts */
183 if (!FONT_Init()) return FALSE
;
189 /***********************************************************************
192 FARPROC16
GDI_GetDefDCHook(void)
194 return defDCHookCallback
;
198 /***********************************************************************
201 HANDLE16
GDI_AllocObject( WORD size
, WORD magic
)
203 static DWORD count
= 0;
205 HANDLE handle
= GDI_HEAP_ALLOC( size
);
206 if (!handle
) return 0;
207 obj
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( handle
);
210 obj
->dwCount
= ++count
;
215 /***********************************************************************
218 BOOL32
GDI_FreeObject( HANDLE16 handle
)
222 /* Can't free stock objects */
223 if ((handle
>= FIRST_STOCK_HANDLE
) && (handle
<= LAST_STOCK_HANDLE
))
226 object
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( handle
);
227 if (!object
) return FALSE
;
228 object
->wMagic
= 0; /* Mark it as invalid */
232 GDI_HEAP_FREE( handle
);
236 /***********************************************************************
239 * Return a pointer to the GDI object associated to the handle.
240 * Return NULL if the object has the wrong magic number.
242 GDIOBJHDR
* GDI_GetObjPtr( HANDLE16 handle
, WORD magic
)
244 GDIOBJHDR
* ptr
= NULL
;
246 if ((handle
>= FIRST_STOCK_HANDLE
) && (handle
<= LAST_STOCK_HANDLE
))
247 ptr
= StockObjects
[handle
- FIRST_STOCK_HANDLE
];
249 ptr
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( handle
);
250 if (!ptr
) return NULL
;
251 if ((magic
!= MAGIC_DONTCARE
) && (ptr
->wMagic
!= magic
)) return NULL
;
256 /***********************************************************************
257 * DeleteObject (GDI.69)
259 BOOL
DeleteObject( HGDIOBJ16 obj
)
261 /* Check if object is valid */
263 GDIOBJHDR
* header
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( obj
);
264 if (!header
) return FALSE
;
266 dprintf_gdi(stddeb
, "DeleteObject: %04x\n", obj
);
270 switch(header
->wMagic
)
272 case PEN_MAGIC
: return GDI_FreeObject( obj
);
273 case BRUSH_MAGIC
: return BRUSH_DeleteObject( obj
, (BRUSHOBJ
*)header
);
274 case FONT_MAGIC
: return GDI_FreeObject( obj
);
275 case PALETTE_MAGIC
: return PALETTE_DeleteObject(obj
,(PALETTEOBJ
*)header
);
276 case BITMAP_MAGIC
: return BITMAP_DeleteObject( obj
, (BITMAPOBJ
*)header
);
277 case REGION_MAGIC
: return REGION_DeleteObject( obj
, (RGNOBJ
*)header
);
283 /***********************************************************************
284 * GetStockObject (GDI.87)
286 HANDLE
GetStockObject( int obj
)
288 if ((obj
< 0) || (obj
>= NB_STOCK_OBJECTS
)) return 0;
289 if (!StockObjects
[obj
]) return 0;
290 dprintf_gdi(stddeb
, "GetStockObject: returning %d\n",
291 FIRST_STOCK_HANDLE
+ obj
);
292 return (HANDLE
)(FIRST_STOCK_HANDLE
+ obj
);
296 /***********************************************************************
297 * GetObject16 (GDI.82)
299 INT16
GetObject16( HANDLE16 handle
, INT16 count
, LPVOID buffer
)
301 GDIOBJHDR
* ptr
= NULL
;
302 dprintf_gdi(stddeb
, "GetObject16: %04x %d %p\n", handle
, count
, buffer
);
303 if (!count
) return 0;
305 if ((handle
>= FIRST_STOCK_HANDLE
) && (handle
<= LAST_STOCK_HANDLE
))
306 ptr
= StockObjects
[handle
- FIRST_STOCK_HANDLE
];
308 ptr
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( handle
);
314 return PEN_GetObject( (PENOBJ
*)ptr
, count
, buffer
);
316 return BRUSH_GetObject( (BRUSHOBJ
*)ptr
, count
, buffer
);
318 return BITMAP_GetObject16( (BITMAPOBJ
*)ptr
, count
, buffer
);
320 return FONT_GetObject( (FONTOBJ
*)ptr
, count
, buffer
);
322 return PALETTE_GetObject( (PALETTEOBJ
*)ptr
, count
, buffer
);
328 /***********************************************************************
329 * GetObject32A (GDI32.204)
331 INT32
GetObject32A( HANDLE32 handle
, INT32 count
, LPVOID buffer
)
333 GDIOBJHDR
* ptr
= NULL
;
334 dprintf_gdi(stddeb
, "GetObject32A: %08x %d %p\n", handle
, count
, buffer
);
335 if (!count
) return 0;
337 if ((handle
>= FIRST_STOCK_HANDLE
) && (handle
<= LAST_STOCK_HANDLE
))
338 ptr
= StockObjects
[handle
- FIRST_STOCK_HANDLE
];
340 ptr
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( handle
);
346 return BITMAP_GetObject32( (BITMAPOBJ
*)ptr
, count
, buffer
);
351 fprintf( stderr
, "GetObject32: magic %04x not implemented\n",
359 /***********************************************************************
360 * GetObject32W (GDI32.206)
362 INT32
GetObject32W( HANDLE32 handle
, INT32 count
, LPVOID buffer
)
364 return GetObject32A( handle
, count
, buffer
);
368 /***********************************************************************
369 * SelectObject (GDI.45)
371 HANDLE
SelectObject( HDC hdc
, HANDLE handle
)
373 GDIOBJHDR
* ptr
= NULL
;
376 dprintf_gdi(stddeb
, "SelectObject: hdc=%04x %04x\n", hdc
, handle
);
377 if ((handle
>= FIRST_STOCK_HANDLE
) && (handle
<= LAST_STOCK_HANDLE
))
378 ptr
= StockObjects
[handle
- FIRST_STOCK_HANDLE
];
380 ptr
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( handle
);
383 dc
= (DC
*) GDI_GetObjPtr( hdc
, DC_MAGIC
);
386 dc
= (DC
*)GDI_GetObjPtr(hdc
, METAFILE_DC_MAGIC
);
393 return PEN_SelectObject( dc
, handle
, (PENOBJ
*)ptr
);
395 return BRUSH_SelectObject( dc
, handle
, (BRUSHOBJ
*)ptr
);
397 return BITMAP_SelectObject( dc
, handle
, (BITMAPOBJ
*)ptr
);
399 return FONT_SelectObject( dc
, handle
, (FONTOBJ
*)ptr
);
401 return (HANDLE
)SelectClipRgn( hdc
, handle
);
407 /***********************************************************************
408 * UnrealizeObject (GDI.150)
410 BOOL
UnrealizeObject( HANDLE obj
)
412 /* Check if object is valid */
414 GDIOBJHDR
* header
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( obj
);
415 if (!header
) return FALSE
;
417 dprintf_gdi( stddeb
, "UnrealizeObject: %04x\n", obj
);
419 /* Unrealize object */
421 switch(header
->wMagic
)
424 return PALETTE_UnrealizeObject( obj
, (PALETTEOBJ
*)header
);
427 /* Windows resets the brush origin. We don't need to. */
434 /***********************************************************************
435 * EnumObjects (GDI.71)
437 INT
EnumObjects( HDC hdc
, INT nObjType
, GOBJENUMPROC16 lpEnumFunc
,
440 /* Solid colors to enumerate */
441 static const COLORREF solid_colors
[] =
442 { RGB(0x00,0x00,0x00), RGB(0xff,0xff,0xff),
443 RGB(0xff,0x00,0x00), RGB(0x00,0xff,0x00),
444 RGB(0x00,0x00,0xff), RGB(0xff,0xff,0x00),
445 RGB(0xff,0x00,0xff), RGB(0x00,0xff,0xff),
446 RGB(0x80,0x00,0x00), RGB(0x00,0x80,0x00),
447 RGB(0x80,0x80,0x00), RGB(0x00,0x00,0x80),
448 RGB(0x80,0x00,0x80), RGB(0x00,0x80,0x80),
449 RGB(0x80,0x80,0x80), RGB(0xc0,0xc0,0xc0)
454 LOGBRUSH16
*brush
= NULL
;
456 dprintf_gdi( stddeb
, "EnumObjects: %04x %d %08lx %08lx\n",
457 hdc
, nObjType
, (DWORD
)lpEnumFunc
, lParam
);
461 /* Enumerate solid pens */
462 if (!(pen
= SEGPTR_NEW(LOGPEN16
))) break;
463 for (i
= 0; i
< sizeof(solid_colors
)/sizeof(solid_colors
[0]); i
++)
465 pen
->lopnStyle
= PS_SOLID
;
466 pen
->lopnWidth
.x
= 1;
467 pen
->lopnWidth
.y
= 0;
468 pen
->lopnColor
= solid_colors
[i
];
469 retval
= lpEnumFunc( SEGPTR_GET(pen
), lParam
);
470 dprintf_gdi( stddeb
, "EnumObject: solid pen %08lx, ret=%d\n",
471 solid_colors
[i
], retval
);
478 /* Enumerate solid brushes */
479 if (!(brush
= SEGPTR_NEW(LOGBRUSH16
))) break;
480 for (i
= 0; i
< sizeof(solid_colors
)/sizeof(solid_colors
[0]); i
++)
482 brush
->lbStyle
= BS_SOLID
;
483 brush
->lbColor
= solid_colors
[i
];
485 retval
= lpEnumFunc( SEGPTR_GET(brush
), lParam
);
486 dprintf_gdi( stddeb
, "EnumObject: solid brush %08lx, ret=%d\n",
487 solid_colors
[i
], retval
);
491 /* Now enumerate hatched brushes */
492 if (retval
) for (i
= HS_HORIZONTAL
; i
<= HS_DIAGCROSS
; i
++)
494 brush
->lbStyle
= BS_HATCHED
;
495 brush
->lbColor
= RGB(0,0,0);
497 retval
= lpEnumFunc( SEGPTR_GET(brush
), lParam
);
498 dprintf_gdi( stddeb
, "EnumObject: hatched brush %d, ret=%d\n",
506 fprintf( stderr
, "EnumObjects: invalid type %d\n", nObjType
);
513 /***********************************************************************
514 * IsGDIObject (GDI.462)
516 BOOL
IsGDIObject(HANDLE handle
)
520 object
= (GDIOBJHDR
*) GDI_HEAP_LIN_ADDR( handle
);
521 /* FIXME: should check magic here */
522 return (object
!= NULL
);
526 /***********************************************************************
529 INT16
MulDiv16( INT16 foo
, INT16 bar
, INT16 baz
)
532 if (!baz
) return -32768;
533 ret
= (foo
* bar
) / baz
;
534 if ((ret
> 32767) || (ret
< -32767)) return -32768;
539 /***********************************************************************
540 * MulDiv32 (KERNEL32.391)
542 INT32
MulDiv32( INT32 foo
, INT32 bar
, INT32 baz
)
547 ret
= ((long long)foo
* bar
) / baz
;
548 if ((ret
> 2147483647) || (ret
< -2147483647)) return -1;
552 return (foo
* bar
) / baz
;