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
|
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include <X11/X.h>
#include "scrnintstr.h"
#include "miline.h"
#include "xf86str.h"
#include "xaa.h"
#include "xaalocal.h"
void
XAASolidHorVertLineAsRects(
ScrnInfoPtr pScrn,
int x, int y, int len, int dir
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
if(dir == DEGREES_0)
(*infoRec->SubsequentSolidFillRect)(pScrn, x, y, len, 1);
else
(*infoRec->SubsequentSolidFillRect)(pScrn, x, y, 1, len);
}
void
XAASolidHorVertLineAsTwoPoint(
ScrnInfoPtr pScrn,
int x, int y, int len, int dir
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
len--;
if(dir == DEGREES_0)
(*infoRec->SubsequentSolidTwoPointLine)(pScrn, x, y, x + len, y, 0);
else
(*infoRec->SubsequentSolidTwoPointLine)(pScrn, x, y, x, y + len, 0);
}
void
XAASolidHorVertLineAsBresenham(
ScrnInfoPtr pScrn,
int x, int y, int len, int dir
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
if(dir == DEGREES_0)
(*infoRec->SubsequentSolidBresenhamLine)(
pScrn, x, y, len << 1, 0, -len, len, 0);
else
(*infoRec->SubsequentSolidBresenhamLine)(
pScrn, x, y, len << 1, 0, -len, len, YMAJOR);
}
void
XAAComputeDash(GCPtr pGC)
{
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
XAAGCPtr pGCPriv = (XAAGCPtr)dixLookupPrivate(&pGC->devPrivates,
XAAGetGCKey());
Bool EvenDash = (pGC->numInDashList & 0x01) ? FALSE : TRUE;
int PatternLength = 0;
unsigned char* DashPtr = (unsigned char*)pGC->dash;
CARD32 *ptr;
int count = pGC->numInDashList;
int shift, value, direction;
Bool set;
free(pGCPriv->DashPattern);
pGCPriv->DashPattern = NULL;
pGCPriv->DashLength = 0;
while(count--)
PatternLength += *(DashPtr++);
if(!EvenDash)
PatternLength <<= 1;
if(PatternLength > infoRec->DashPatternMaxLength)
return;
if((infoRec->DashedLineFlags & LINE_PATTERN_POWER_OF_2_ONLY) &&
(PatternLength & (PatternLength - 1)))
return;
pGCPriv->DashPattern = calloc((PatternLength + 31) >> 5, 4);
if(!pGCPriv->DashPattern) return;
pGCPriv->DashLength = PatternLength;
if(infoRec->DashedLineFlags & (LINE_PATTERN_LSBFIRST_MSBJUSTIFIED |
LINE_PATTERN_LSBFIRST_LSBJUSTIFIED)) {
direction = 1;
set = TRUE;
DashPtr = (unsigned char*)pGC->dash;
} else {
direction = -1;
set = FALSE;
DashPtr = (unsigned char*)pGC->dash + pGC->numInDashList - 1;
}
if(infoRec->DashedLineFlags & (LINE_PATTERN_LSBFIRST_MSBJUSTIFIED |
LINE_PATTERN_MSBFIRST_MSBJUSTIFIED))
shift = 32 - (PatternLength & 31);
else
shift = 0;
ptr = (CARD32*)(pGCPriv->DashPattern);
CONCATENATE:
count = pGC->numInDashList;
while(count--) {
value = *DashPtr;
DashPtr += direction;
while(value) {
if(value < (32 - shift)) {
if(set) *ptr |= XAAShiftMasks[value] << shift;
shift += value;
break;
} else {
if(set) *ptr |= ~0L << shift;
value -= (32 - shift);
shift = 0;
ptr++;
}
}
if(set) set = FALSE;
else set = TRUE;
}
if(!EvenDash) {
EvenDash = TRUE;
if(infoRec->DashedLineFlags & (LINE_PATTERN_LSBFIRST_MSBJUSTIFIED |
LINE_PATTERN_LSBFIRST_LSBJUSTIFIED))
DashPtr = (unsigned char*)pGC->dash;
else
DashPtr = (unsigned char*)pGC->dash + pGC->numInDashList;
goto CONCATENATE;
}
}
|
