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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
#ifndef lint
static char SccsId[] = "%W% %G%";
#endif
/* Module: mgfymark.c (Magnify Mark)
* Purpose: Quickly put the sighting mark in the magnified image
* Subroutine: init_magnifier_Zmark() returns: void
* Subroutine: mark_magnifierZ() returns: void
* Subroutine: init_magnifier_XYmark() returns: void
* Subroutine: mark_magnifierXY() returns: void
* Copyright: 1989 Smithsonian Astrophysical Observatory
* You may do anything you like with this file except remove
* this copyright. The Smithsonian Astrophysical Observatory
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
* Modified: {0} Michael VanHilst initial version 6 June 1989
* {n} <who> -- <does what> -- <when>
*/
#include <X11/Xlib.h> /* X window stuff */
#include <X11/Xutil.h> /* X window manager stuff */
#include "hfiles/color.h" /* define GCspec */
#include "hfiles/magnify.h" /* magnifier quick access structure */
#include "defs/magnify.def" /* masks for sighting mark */
extern struct magRec magset;
struct {
char *top_left;
char *top_right;
char *bot_left;
char *bot_right;
int tl_br_next;
int tr_bl_next;
} Zmark;
/*
* Subroutine: init_magnifier_Zmark
*/
void init_magnifier_Zmark ( )
{
char *line_center;
line_center = magset.data + magset.data_x_hot +
((magset.data_y_hot - Zmark_y_hot) * magset.win.width);
Zmark.top_left = line_center - Zmark_x_hot;
Zmark.top_right = line_center + Zmark_x_hot;
line_center = magset.data + magset.data_x_hot +
((magset.data_y_hot + Zmark_y_hot) * magset.win.width);
Zmark.bot_left = line_center - Zmark_x_hot;
Zmark.bot_right = line_center + Zmark_x_hot;
Zmark.tl_br_next = magset.win.width - Zmark_x_hot;
Zmark.tr_bl_next = magset.win.width + Zmark_x_hot;
}
/*
* Subroutine: mark_Zmagnifier
*/
void mark_Zmagnifier ( )
{
register char *top_left, *top_right;
register char *bot_left, *bot_right;
register int *mark;
register int foreground, background;
top_left = Zmark.top_left;
bot_left = Zmark.bot_left;
top_right = Zmark.top_right;
bot_right = Zmark.bot_right;
foreground = magset.gcset_aim->foreground;
background = magset.gcset_aim->background;
mark = (int *)Zmark_mask;
while( top_left < bot_left ) {
while( top_left < top_right ) {
if( *mark ) {
if( *mark > 1 ) {
*top_left = foreground;
*top_right = foreground;
*bot_left = foreground;
*bot_right = foreground;
} else {
*top_left = background;
*top_right = background;
*bot_left = background;
*bot_right = background;
}
}
mark++;
top_left++;
top_right--;
bot_left++;
bot_right--;
}
/* pointers converge at center, just do left */
if( *mark ) {
if( *mark > 1 ) {
*top_left = foreground;
*bot_left = foreground;
} else {
*top_left = background;
*bot_left = background;
}
}
mark++;
top_left += Zmark.tl_br_next;
bot_right -= Zmark.tl_br_next;
top_right += Zmark.tr_bl_next;
bot_left -= Zmark.tr_bl_next;
}
/* pointers converge on middle line, just do top */
while( top_left < top_right ) {
if( *mark ) {
if( *mark > 1 ) {
*top_left = foreground;
*top_right = foreground;
} else {
*top_left = background;
*top_right = background;
}
}
mark++;
top_left++;
top_right--;
}
/* pointers converge at center, just do left */
if( *mark ) {
if( *mark > 1 ) {
*top_left = foreground;
} else {
*top_left = background;
}
}
}
struct {
char *top_left;
unsigned char *mark;
unsigned char *mask;
unsigned char *last_mark;
int bytes;
int next_line;
} XYmark;
/*
* Subroutine: init_magnifier_XYmark
*/
void init_magnifier_XYmark ( )
{
int xoff;
xoff = magset.data_x_hot - XYmark_x_hot;
XYmark.top_left = magset.data + (xoff / 8) +
((magset.data_y_hot - XYmark_y_hot) * magset.bytes_per_line);
xoff = xoff & 7;
XYmark.mark = XYmark_mark[xoff] - 1;
XYmark.mask = XYmark_mask[xoff] - 1;
if( xoff < 4 ) {
XYmark.bytes = 2;
XYmark.next_line = magset.bytes_per_line - 1;
XYmark.last_mark = XYmark.mark + 26;
} else {
XYmark.bytes = 3;
XYmark.next_line = magset.bytes_per_line - 2;
XYmark.last_mark = XYmark.mark + 39;
}
}
/*
* Subroutine: mark_XYmagnifier
*/
void mark_XYmagnifier ( )
{
register unsigned char *data, *mark, *mask, *last_mark;
register int next_line;
data = (unsigned char *)XYmark.top_left;
mark = (unsigned char *)XYmark.mark;
mask = (unsigned char *)XYmark.mask;
last_mark = (unsigned char *)XYmark.last_mark;
next_line = XYmark.next_line;
if( XYmark.bytes == 2 ) {
while( mark < last_mark ) {
*data = (*data & *(++mask)) | *(++mark);
data++;
*data = (*data & *(++mask)) | *(++mark);
data += next_line;
}
} else {
while( mark < last_mark ) {
*data = (*data & *(++mask)) | *(++mark);
data++;
*data = ((*data & *(++mask)) | *(++mark));
data++;
*data = (*data & *(++mask)) | *(++mark);
data += next_line;
}
}
}
|
