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
| /*
| * Copyright © 1998 Keith Packard
| *
| * 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 Keith Packard not be used in
| * advertising or publicity pertaining to distribution of the software without
| * specific, written prior permission. Keith Packard makes no
| * representations about the suitability of this software for any purpose. It
| * is provided "as is" without express or implied warranty.
| *
| * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
| * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
| * EVENT SHALL KEITH PACKARD 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.
| */
|
| #ifdef HAVE_DIX_CONFIG_H
| #include <dix-config.h>
| #endif
|
| #include "fb.h"
|
| typedef void (*FbDots) (FbBits * dst,
| FbStride dstStride,
| int dstBpp,
| BoxPtr pBox,
| xPoint * pts,
| int npt,
| int xorg,
| int yorg, int xoff, int yoff, FbBits and, FbBits xor);
|
| static void
| fbDots(FbBits * dstOrig,
| FbStride dstStride,
| int dstBpp,
| BoxPtr pBox,
| xPoint * pts,
| int npt,
| int xorg, int yorg, int xoff, int yoff, FbBits andOrig, FbBits xorOrig)
| {
| FbStip *dst = (FbStip *) dstOrig;
| int x1, y1, x2, y2;
| int x, y;
| FbStip *d;
| FbStip and = andOrig;
| FbStip xor = xorOrig;
|
| dstStride = FbBitsStrideToStipStride(dstStride);
| x1 = pBox->x1;
| y1 = pBox->y1;
| x2 = pBox->x2;
| y2 = pBox->y2;
| while (npt--) {
| x = pts->x + xorg;
| y = pts->y + yorg;
| pts++;
| if (x1 <= x && x < x2 && y1 <= y && y < y2) {
| FbStip mask;
| x = (x + xoff) * dstBpp;
| d = dst + ((y + yoff) * dstStride) + (x >> FB_STIP_SHIFT);
| x &= FB_STIP_MASK;
|
| mask = FbStipMask(x, dstBpp);
| WRITE(d, FbDoMaskRRop(READ(d), and, xor, mask));
| }
| }
| }
|
| void
| fbPolyPoint(DrawablePtr pDrawable,
| GCPtr pGC, int mode, int nptInit, xPoint * pptInit)
| {
| FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
| RegionPtr pClip = fbGetCompositeClip(pGC);
| FbBits *dst;
| FbStride dstStride;
| int dstBpp;
| int dstXoff, dstYoff;
| FbDots dots;
| FbBits and, xor;
| xPoint *ppt;
| int npt;
| BoxPtr pBox;
| int nBox;
|
| /* make pointlist origin relative */
| ppt = pptInit;
| npt = nptInit;
| if (mode == CoordModePrevious) {
| npt--;
| while (npt--) {
| ppt++;
| ppt->x += (ppt - 1)->x;
| ppt->y += (ppt - 1)->y;
| }
| }
| fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
| and = pPriv->and;
| xor = pPriv->xor;
| dots = fbDots;
| switch (dstBpp) {
| case 8:
| dots = fbDots8;
| break;
| case 16:
| dots = fbDots16;
| break;
| case 32:
| dots = fbDots32;
| break;
| }
| for (nBox = RegionNumRects(pClip), pBox = RegionRects(pClip);
| nBox--; pBox++)
| (*dots) (dst, dstStride, dstBpp, pBox, pptInit, nptInit,
| pDrawable->x, pDrawable->y, dstXoff, dstYoff, and, xor);
| fbFinishAccess(pDrawable);
| }
|
|
