shadow.h revision 35c4bbdf 
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#include "picturestr.h"
30
31#include "damage.h"
32#include "damagestr.h"
33typedef struct _shadowBuf *shadowBufPtr;
34
35typedef void (*ShadowUpdateProc) (ScreenPtr pScreen, shadowBufPtr pBuf);
36
37#define SHADOW_WINDOW_RELOCATE 1
38#define SHADOW_WINDOW_READ 2
39#define SHADOW_WINDOW_WRITE 4
40
41typedef void *(*ShadowWindowProc) (ScreenPtr pScreen,
42                                   CARD32 row,
43                                   CARD32 offset,
44                                   int mode, CARD32 *size, void *closure);
45
46typedef struct _shadowBuf {
47    DamagePtr pDamage;
48    ShadowUpdateProc update;
49    ShadowWindowProc window;
50    PixmapPtr pPixmap;
51    void *closure;
52    int randr;
53
54    /* screen wrappers */
55    GetImageProcPtr GetImage;
56    CloseScreenProcPtr CloseScreen;
57} shadowBufRec;
58
59/* Match defines from randr extension */
60#define SHADOW_ROTATE_0	    1
61#define SHADOW_ROTATE_90    2
62#define SHADOW_ROTATE_180   4
63#define SHADOW_ROTATE_270   8
64#define SHADOW_ROTATE_ALL   (SHADOW_ROTATE_0|SHADOW_ROTATE_90|\
65			     SHADOW_ROTATE_180|SHADOW_ROTATE_270)
66#define SHADOW_REFLECT_X    16
67#define SHADOW_REFLECT_Y    32
68#define SHADOW_REFLECT_ALL  (SHADOW_REFLECT_X|SHADOW_REFLECT_Y)
69
70extern _X_EXPORT DevPrivateKey shadowScrPrivateKey;
71
72#define shadowGetBuf(pScr) ((shadowBufPtr) \
73    dixLookupPrivate(&(pScr)->devPrivates, shadowScrPrivateKey))
74#define shadowBuf(pScr)            shadowBufPtr pBuf = shadowGetBuf(pScr)
75#define shadowDamage(pBuf)  DamageRegion(pBuf->pDamage)
76
77extern _X_EXPORT Bool
78 shadowSetup(ScreenPtr pScreen);
79
80extern _X_EXPORT Bool
81
82shadowAdd(ScreenPtr pScreen,
83          PixmapPtr pPixmap,
84          ShadowUpdateProc update,
85          ShadowWindowProc window, int randr, void *closure);
86
87extern _X_EXPORT void
88 shadowRemove(ScreenPtr pScreen, PixmapPtr pPixmap);
89
90extern _X_EXPORT void *shadowAlloc(int width, int height, int bpp);
91
92extern _X_EXPORT void
93 shadowUpdateAfb4(ScreenPtr pScreen, shadowBufPtr pBuf);
94
95extern _X_EXPORT void
96 shadowUpdateAfb8(ScreenPtr pScreen, shadowBufPtr pBuf);
97
98extern _X_EXPORT void
99 shadowUpdateIplan2p4(ScreenPtr pScreen, shadowBufPtr pBuf);
100
101extern _X_EXPORT void
102 shadowUpdateIplan2p8(ScreenPtr pScreen, shadowBufPtr pBuf);
103
104extern _X_EXPORT void
105 shadowUpdatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
106
107extern _X_EXPORT void
108 shadowUpdatePlanar4(ScreenPtr pScreen, shadowBufPtr pBuf);
109
110extern _X_EXPORT void
111 shadowUpdatePlanar4x8(ScreenPtr pScreen, shadowBufPtr pBuf);
112
113extern _X_EXPORT void
114 shadowUpdateRotatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
115
116extern _X_EXPORT void
117 shadowUpdateRotate8_90(ScreenPtr pScreen, shadowBufPtr pBuf);
118
119extern _X_EXPORT void
120 shadowUpdateRotate16_90(ScreenPtr pScreen, shadowBufPtr pBuf);
121
122extern _X_EXPORT void
123 shadowUpdateRotate16_90YX(ScreenPtr pScreen, shadowBufPtr pBuf);
124
125extern _X_EXPORT void
126 shadowUpdateRotate32_90(ScreenPtr pScreen, shadowBufPtr pBuf);
127
128extern _X_EXPORT void
129 shadowUpdateRotate8_180(ScreenPtr pScreen, shadowBufPtr pBuf);
130
131extern _X_EXPORT void
132 shadowUpdateRotate16_180(ScreenPtr pScreen, shadowBufPtr pBuf);
133
134extern _X_EXPORT void
135 shadowUpdateRotate32_180(ScreenPtr pScreen, shadowBufPtr pBuf);
136
137extern _X_EXPORT void
138 shadowUpdateRotate8_270(ScreenPtr pScreen, shadowBufPtr pBuf);
139
140extern _X_EXPORT void
141 shadowUpdateRotate16_270(ScreenPtr pScreen, shadowBufPtr pBuf);
142
143extern _X_EXPORT void
144 shadowUpdateRotate16_270YX(ScreenPtr pScreen, shadowBufPtr pBuf);
145
146extern _X_EXPORT void
147 shadowUpdateRotate32_270(ScreenPtr pScreen, shadowBufPtr pBuf);
148
149extern _X_EXPORT void
150 shadowUpdateRotate8(ScreenPtr pScreen, shadowBufPtr pBuf);
151
152extern _X_EXPORT void
153 shadowUpdateRotate16(ScreenPtr pScreen, shadowBufPtr pBuf);
154
155extern _X_EXPORT void
156 shadowUpdateRotate32(ScreenPtr pScreen, shadowBufPtr pBuf);
157
158typedef void (*shadowUpdateProc) (ScreenPtr, shadowBufPtr);
159
160extern _X_EXPORT shadowUpdateProc shadowUpdatePackedWeak(void);
161extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4Weak(void);
162extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4x8Weak(void);
163extern _X_EXPORT shadowUpdateProc shadowUpdateRotatePackedWeak(void);
164
165#endif                          /* _SHADOW_H_ */
166