1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright © 2004 Philip Blundell
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Permission to use, copy, modify, distribute, and sell this software and its
5*4882a593Smuzhiyun * documentation for any purpose is hereby granted without fee, provided that
6*4882a593Smuzhiyun * the above copyright notice appear in all copies and that both that
7*4882a593Smuzhiyun * copyright notice and this permission notice appear in supporting
8*4882a593Smuzhiyun * documentation, and that the name of Philip Blundell not be used in
9*4882a593Smuzhiyun * advertising or publicity pertaining to distribution of the software without
10*4882a593Smuzhiyun * specific, written prior permission. Philip Blundell makes no
11*4882a593Smuzhiyun * representations about the suitability of this software for any purpose. It
12*4882a593Smuzhiyun * is provided "as is" without express or implied warranty.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * PHILIP BLUNDELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15*4882a593Smuzhiyun * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16*4882a593Smuzhiyun * EVENT SHALL PHILIP BLUNDELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17*4882a593Smuzhiyun * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18*4882a593Smuzhiyun * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19*4882a593Smuzhiyun * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
20*4882a593Smuzhiyun * PERFORMANCE OF THIS SOFTWARE.
21*4882a593Smuzhiyun */
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun #include <X11/X.h>
24*4882a593Smuzhiyun #include "scrnintstr.h"
25*4882a593Smuzhiyun #include "windowstr.h"
26*4882a593Smuzhiyun #include "dixfontstr.h"
27*4882a593Smuzhiyun #include "mi.h"
28*4882a593Smuzhiyun #include "regionstr.h"
29*4882a593Smuzhiyun #include "globals.h"
30*4882a593Smuzhiyun #include "gcstruct.h"
31*4882a593Smuzhiyun #include "shadow.h"
32*4882a593Smuzhiyun #include "fb.h"
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun #if ROTATE == 270
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun #define WINSTEPX(stride) (stride)
37*4882a593Smuzhiyun #define WINSTART(x,y) (((pScreen->height - 1) - y) + (x * winStride))
38*4882a593Smuzhiyun #define WINSTEPY() -1
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun #elif ROTATE == 90
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun #define WINSTEPX(stride) (-stride)
43*4882a593Smuzhiyun #define WINSTEPY() 1
44*4882a593Smuzhiyun #define WINSTART(x,y) (((pScreen->width - 1 - x) * winStride) + y)
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun #else
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun #error This rotation is not supported here
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun #endif
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun #ifdef __arm__
53*4882a593Smuzhiyun #define PREFETCH
54*4882a593Smuzhiyun #endif
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun void
FUNC(ScreenPtr pScreen,shadowBufPtr pBuf)57*4882a593Smuzhiyun FUNC(ScreenPtr pScreen, shadowBufPtr pBuf)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun RegionPtr damage = DamageRegion(pBuf->pDamage);
60*4882a593Smuzhiyun PixmapPtr pShadow = pBuf->pPixmap;
61*4882a593Smuzhiyun int nbox = RegionNumRects(damage);
62*4882a593Smuzhiyun BoxPtr pbox = RegionRects(damage);
63*4882a593Smuzhiyun FbBits *shaBits;
64*4882a593Smuzhiyun Data *shaBase, *shaLine, *sha;
65*4882a593Smuzhiyun FbStride shaStride, winStride;
66*4882a593Smuzhiyun int shaBpp;
67*4882a593Smuzhiyun _X_UNUSED int shaXoff, shaYoff;
68*4882a593Smuzhiyun int x, y, w, h;
69*4882a593Smuzhiyun Data *winBase, *win, *winLine;
70*4882a593Smuzhiyun CARD32 winSize;
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun fbGetDrawable(&pShadow->drawable, shaBits, shaStride, shaBpp, shaXoff,
73*4882a593Smuzhiyun shaYoff);
74*4882a593Smuzhiyun shaBase = (Data *) shaBits;
75*4882a593Smuzhiyun shaStride = shaStride * sizeof(FbBits) / sizeof(Data);
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun winBase = (Data *) (*pBuf->window) (pScreen, 0, 0,
78*4882a593Smuzhiyun SHADOW_WINDOW_WRITE,
79*4882a593Smuzhiyun &winSize, pBuf->closure);
80*4882a593Smuzhiyun winStride = (Data *) (*pBuf->window) (pScreen, 1, 0,
81*4882a593Smuzhiyun SHADOW_WINDOW_WRITE,
82*4882a593Smuzhiyun &winSize, pBuf->closure) - winBase;
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun while (nbox--) {
85*4882a593Smuzhiyun x = pbox->x1;
86*4882a593Smuzhiyun y = pbox->y1;
87*4882a593Smuzhiyun w = (pbox->x2 - pbox->x1);
88*4882a593Smuzhiyun h = pbox->y2 - pbox->y1;
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun shaLine = shaBase + (y * shaStride) + x;
91*4882a593Smuzhiyun #ifdef PREFETCH
92*4882a593Smuzhiyun __builtin_prefetch(shaLine);
93*4882a593Smuzhiyun #endif
94*4882a593Smuzhiyun winLine = winBase + WINSTART(x, y);
95*4882a593Smuzhiyun
96*4882a593Smuzhiyun while (h--) {
97*4882a593Smuzhiyun sha = shaLine;
98*4882a593Smuzhiyun win = winLine;
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun while (sha < (shaLine + w - 16)) {
101*4882a593Smuzhiyun #ifdef PREFETCH
102*4882a593Smuzhiyun __builtin_prefetch(sha + shaStride);
103*4882a593Smuzhiyun #endif
104*4882a593Smuzhiyun *win = *sha++;
105*4882a593Smuzhiyun win += WINSTEPX(winStride);
106*4882a593Smuzhiyun *win = *sha++;
107*4882a593Smuzhiyun win += WINSTEPX(winStride);
108*4882a593Smuzhiyun *win = *sha++;
109*4882a593Smuzhiyun win += WINSTEPX(winStride);
110*4882a593Smuzhiyun *win = *sha++;
111*4882a593Smuzhiyun win += WINSTEPX(winStride);
112*4882a593Smuzhiyun
113*4882a593Smuzhiyun *win = *sha++;
114*4882a593Smuzhiyun win += WINSTEPX(winStride);
115*4882a593Smuzhiyun *win = *sha++;
116*4882a593Smuzhiyun win += WINSTEPX(winStride);
117*4882a593Smuzhiyun *win = *sha++;
118*4882a593Smuzhiyun win += WINSTEPX(winStride);
119*4882a593Smuzhiyun *win = *sha++;
120*4882a593Smuzhiyun win += WINSTEPX(winStride);
121*4882a593Smuzhiyun
122*4882a593Smuzhiyun *win = *sha++;
123*4882a593Smuzhiyun win += WINSTEPX(winStride);
124*4882a593Smuzhiyun *win = *sha++;
125*4882a593Smuzhiyun win += WINSTEPX(winStride);
126*4882a593Smuzhiyun *win = *sha++;
127*4882a593Smuzhiyun win += WINSTEPX(winStride);
128*4882a593Smuzhiyun *win = *sha++;
129*4882a593Smuzhiyun win += WINSTEPX(winStride);
130*4882a593Smuzhiyun
131*4882a593Smuzhiyun *win = *sha++;
132*4882a593Smuzhiyun win += WINSTEPX(winStride);
133*4882a593Smuzhiyun *win = *sha++;
134*4882a593Smuzhiyun win += WINSTEPX(winStride);
135*4882a593Smuzhiyun *win = *sha++;
136*4882a593Smuzhiyun win += WINSTEPX(winStride);
137*4882a593Smuzhiyun *win = *sha++;
138*4882a593Smuzhiyun win += WINSTEPX(winStride);
139*4882a593Smuzhiyun }
140*4882a593Smuzhiyun
141*4882a593Smuzhiyun while (sha < (shaLine + w)) {
142*4882a593Smuzhiyun *win = *sha++;
143*4882a593Smuzhiyun win += WINSTEPX(winStride);
144*4882a593Smuzhiyun }
145*4882a593Smuzhiyun
146*4882a593Smuzhiyun y++;
147*4882a593Smuzhiyun shaLine += shaStride;
148*4882a593Smuzhiyun winLine += WINSTEPY();
149*4882a593Smuzhiyun }
150*4882a593Smuzhiyun pbox++;
151*4882a593Smuzhiyun } /* nbox */
152*4882a593Smuzhiyun }
153