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
|
#ifndef lint
#ifdef sccs
static char sccsid[] = "@(#)scrn_vis.c 20.23 93/06/28";
#endif
#endif
/*
* (c) Copyright 1989 Sun Microsystems, Inc. Sun design patents
* pending in the U.S. and foreign countries. See LEGAL_NOTICE
* file for terms of the license.
*/
#include <xview_private/scrn_impl.h>
#include <xview/server.h>
Pkg_private Screen_visual *
screen_get_visual(display, screen, visual_info)
Display *display;
Screen_info *screen;
XVisualInfo *visual_info;
{
Screen_visual *visual = screen->screen_visuals;
/* Sanity check */
if (!visual_info) {
visual = NULL;
} else {
/* See if visual has already been created */
while (visual && (visual->vinfo != visual_info))
visual = visual->next;
/* If we didn't find one, create it and add it to the screen's list */
if (!visual) {
visual = screen_new_visual(display, screen,
RootWindow(display, screen->number),
visual_info->depth, visual_info);
if (visual) {
/* The first screen visual is the default, which is always there */
visual->next = screen->screen_visuals->next;
screen->screen_visuals->next = visual;
}
}
}
return(visual);
}
Pkg_private Screen_visual *
screen_get_image_visual(display, screen, xid, depth)
Display *display;
Screen_info *screen;
XID xid;
unsigned int depth;
{
Screen_visual *visual = screen->screen_visuals;
/* See if visual has already been created */
while (visual && (visual->vinfo || (visual->depth != depth)))
visual = visual->next;
/* If we didn't find one, create it and add it to the screen's list */
if (!visual) {
visual = screen_new_visual(display, screen, xid, depth, NULL);
if (visual) {
/* The first screen visual is the default, which is always there */
visual->next = screen->screen_visuals->next;
screen->screen_visuals->next = visual;
}
}
return(visual);
}
Pkg_private Screen_visual *
screen_new_visual(display, screen, xid, depth, visual_info)
Display *display;
Screen_info *screen;
XID xid;
unsigned int depth;
XVisualInfo *visual_info;
{
Xv_private Xv_opaque cms_default_colormap();
Screen_visual *visual;
GC gc;
XGCValues gc_values;
/* Make sure colors are correct in gc. */
/* BUG ALERT! This is not handling color properly!!! */
gc_values.foreground = BlackPixel(display, screen->number);
gc_values.background = WhitePixel(display, screen->number);
gc = XCreateGC(display, xid,
GCForeground | GCBackground, &gc_values);
if (!gc)
return (Screen_visual *)NULL;
visual = xv_alloc(Screen_visual);
visual->screen = SCREEN_PUBLIC(screen);
visual->server = screen->server;
visual->display = display;
visual->root_window = screen->root_window;
visual->vinfo = visual_info;
visual->depth = depth;
if (visual_info == (XVisualInfo *)NULL)
visual->colormaps = (Xv_opaque)NULL;
else
visual->colormaps =
cms_default_colormap(screen->server, display, screen->number, visual_info);
visual->gc = gc;
visual->image_bitmap = (XImage *)NULL;
visual->image_pixmap = (XImage *)NULL;
visual->next = (Screen_visual *)NULL;
return (visual);
}
|
