1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
* $Id$
*
* Copyright © 2004 Philip Blundell
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Philip Blundell not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Philip Blundell makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* PHILIP BLUNDELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL PHILIP BLUNDELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <X11/X.h>
#include "scrnintstr.h"
#include "windowstr.h"
#include "dixfontstr.h"
#include "mi.h"
#include "regionstr.h"
#include "globals.h"
#include "gcstruct.h"
#include "shadow.h"
#include "fb.h"
#if ROTATE == 270
#define WINSTEPX(stride) (stride)
#define WINSTART(x,y) (((pScreen->height - 1) - y) + (x * winStride))
#define WINSTEPY() -1
#elif ROTATE == 90
#define WINSTEPX(stride) (-stride)
#define WINSTEPY() 1
#define WINSTART(x,y) (((pScreen->width - 1 - x) * winStride) + y)
#else
#error This rotation is not supported here
#endif
#ifdef __arm__
#define PREFETCH
#endif
void
FUNC (ScreenPtr pScreen,
shadowBufPtr pBuf);
void
FUNC (ScreenPtr pScreen,
shadowBufPtr pBuf)
{
RegionPtr damage = shadowDamage(pBuf);
PixmapPtr pShadow = pBuf->pPixmap;
int nbox = REGION_NUM_RECTS (damage);
BoxPtr pbox = REGION_RECTS (damage);
FbBits *shaBits;
Data *shaBase, *shaLine, *sha;
FbStride shaStride, winStride;
int shaBpp;
int shaXoff, shaYoff; /* XXX assumed to be zero */
int x, y, w, h;
Data *winBase, *win, *winLine;
CARD32 winSize;
fbGetDrawable (&pShadow->drawable, shaBits, shaStride, shaBpp, shaXoff, shaYoff);
shaBase = (Data *) shaBits;
shaStride = shaStride * sizeof (FbBits) / sizeof (Data);
winBase = (Data *) (*pBuf->window) (pScreen, 0, 0,
SHADOW_WINDOW_WRITE,
&winSize, pBuf->closure);
winStride = (Data *) (*pBuf->window) (pScreen, 1, 0,
SHADOW_WINDOW_WRITE,
&winSize, pBuf->closure) - winBase;
while (nbox--)
{
x = pbox->x1;
y = pbox->y1;
w = (pbox->x2 - pbox->x1);
h = pbox->y2 - pbox->y1;
shaLine = shaBase + (y * shaStride) + x;
#ifdef PREFETCH
__builtin_prefetch (shaLine);
#endif
winLine = winBase + WINSTART(x, y);
while (h--)
{
sha = shaLine;
win = winLine;
while (sha < (shaLine + w - 16))
{
#ifdef PREFETCH
__builtin_prefetch (sha + shaStride);
#endif
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
*win = *sha++;
win += WINSTEPX(winStride);
}
while (sha < (shaLine + w))
{
*win = *sha++;
win += WINSTEPX(winStride);
}
y++;
shaLine += shaStride;
winLine += WINSTEPY();
}
pbox++;
} /* nbox */
}
|
