shadow.h revision 4642e01f 
1/*
2 *
3 * Copyright © 2000 Keith Packard
4 *
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of Keith Packard not be used in
10 * advertising or publicity pertaining to distribution of the software without
11 * specific, written prior permission.  Keith Packard makes no
12 * representations about the suitability of this software for any purpose.  It
13 * is provided "as is" without express or implied warranty.
14 *
15 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
16 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
17 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
18 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
19 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
20 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
21 * PERFORMANCE OF THIS SOFTWARE.
22 */
23
24#ifndef _SHADOW_H_
25#define _SHADOW_H_
26
27#include "scrnintstr.h"
28
29#ifdef RENDER
30#include "picturestr.h"
31#endif
32
33#include "damage.h"
34#include "damagestr.h"
35typedef struct _shadowBuf   *shadowBufPtr;
36
37typedef void (*ShadowUpdateProc) (ScreenPtr pScreen,
38				  shadowBufPtr pBuf);
39
40#define SHADOW_WINDOW_RELOCATE 1
41#define SHADOW_WINDOW_READ 2
42#define SHADOW_WINDOW_WRITE 4
43
44typedef void *(*ShadowWindowProc) (ScreenPtr	pScreen,
45				   CARD32	row,
46				   CARD32	offset,
47				   int		mode,
48				   CARD32	*size,
49				   void		*closure);
50
51/* BC hack: do not move the damage member.  see shadow.c for explanation. */
52typedef struct _shadowBuf {
53    DamagePtr           pDamage;
54    ShadowUpdateProc	update;
55    ShadowWindowProc	window;
56    RegionRec		damage;
57    PixmapPtr		pPixmap;
58    void		*closure;
59    int			randr;
60
61    /* screen wrappers */
62    GetImageProcPtr     GetImage;
63    CloseScreenProcPtr  CloseScreen;
64} shadowBufRec;
65
66/* Match defines from randr extension */
67#define SHADOW_ROTATE_0	    1
68#define SHADOW_ROTATE_90    2
69#define SHADOW_ROTATE_180   4
70#define SHADOW_ROTATE_270   8
71#define SHADOW_ROTATE_ALL   (SHADOW_ROTATE_0|SHADOW_ROTATE_90|\
72			     SHADOW_ROTATE_180|SHADOW_ROTATE_270)
73#define SHADOW_REFLECT_X    16
74#define SHADOW_REFLECT_Y    32
75#define SHADOW_REFLECT_ALL  (SHADOW_REFLECT_X|SHADOW_REFLECT_Y)
76
77extern DevPrivateKey shadowScrPrivateKey;
78
79#define shadowGetBuf(pScr) ((shadowBufPtr) \
80    dixLookupPrivate(&(pScr)->devPrivates, shadowScrPrivateKey))
81#define shadowBuf(pScr)            shadowBufPtr pBuf = shadowGetBuf(pScr)
82#define shadowDamage(pBuf)  DamageRegion(pBuf->pDamage)
83
84Bool
85shadowSetup (ScreenPtr pScreen);
86
87Bool
88shadowAdd (ScreenPtr	    pScreen,
89	   PixmapPtr	    pPixmap,
90	   ShadowUpdateProc update,
91	   ShadowWindowProc window,
92	   int		    randr,
93	   void		    *closure);
94
95void
96shadowRemove (ScreenPtr pScreen, PixmapPtr pPixmap);
97
98shadowBufPtr
99shadowFindBuf (WindowPtr pWindow);
100
101Bool
102shadowInit (ScreenPtr pScreen, ShadowUpdateProc update, ShadowWindowProc window);
103
104void *
105shadowAlloc (int width, int height, int bpp);
106
107void
108shadowUpdatePacked (ScreenPtr	    pScreen,
109		    shadowBufPtr    pBuf);
110
111void
112shadowUpdatePlanar4 (ScreenPtr	    pScreen,
113		     shadowBufPtr   pBuf);
114
115void
116shadowUpdatePlanar4x8 (ScreenPtr    pScreen,
117		       shadowBufPtr pBuf);
118
119void
120shadowUpdateRotatePacked (ScreenPtr    pScreen,
121			  shadowBufPtr pBuf);
122
123void
124shadowUpdateRotate8_90 (ScreenPtr    pScreen,
125			shadowBufPtr pBuf);
126
127void
128shadowUpdateRotate16_90 (ScreenPtr    pScreen,
129			 shadowBufPtr pBuf);
130
131void
132shadowUpdateRotate16_90YX (ScreenPtr    pScreen,
133			   shadowBufPtr pBuf);
134
135void
136shadowUpdateRotate32_90 (ScreenPtr    pScreen,
137			 shadowBufPtr pBuf);
138
139void
140shadowUpdateRotate8_180 (ScreenPtr    pScreen,
141			 shadowBufPtr pBuf);
142
143void
144shadowUpdateRotate16_180 (ScreenPtr    pScreen,
145			  shadowBufPtr pBuf);
146
147void
148shadowUpdateRotate32_180 (ScreenPtr    pScreen,
149			  shadowBufPtr pBuf);
150
151void
152shadowUpdateRotate8_270 (ScreenPtr    pScreen,
153			 shadowBufPtr pBuf);
154
155void
156shadowUpdateRotate16_270 (ScreenPtr    pScreen,
157			  shadowBufPtr pBuf);
158
159void
160shadowUpdateRotate16_270YX (ScreenPtr    pScreen,
161			    shadowBufPtr pBuf);
162
163void
164shadowUpdateRotate32_270 (ScreenPtr    pScreen,
165			  shadowBufPtr pBuf);
166
167void
168shadowUpdateRotate8 (ScreenPtr    pScreen,
169		     shadowBufPtr pBuf);
170
171void
172shadowUpdateRotate16 (ScreenPtr    pScreen,
173		      shadowBufPtr pBuf);
174
175void
176shadowUpdateRotate32 (ScreenPtr    pScreen,
177		      shadowBufPtr pBuf);
178
179typedef void (* shadowUpdateProc)(ScreenPtr, shadowBufPtr);
180
181shadowUpdateProc shadowUpdatePackedWeak(void);
182shadowUpdateProc shadowUpdatePlanar4Weak(void);
183shadowUpdateProc shadowUpdatePlanar4x8Weak(void);
184shadowUpdateProc shadowUpdateRotatePackedWeak(void);
185
186#endif /* _SHADOW_H_ */
187