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
|
/*
* Client application for querying drivers' configuration information
* Copyright (C) 2003 Felix Kuehling
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* FELIX KUEHLING, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#define GLX_GLXEXT_PROTOTYPES
#include <GL/glx.h>
#include <GL/glxext.h>
#include <X11/Xlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
typedef const char * glXGetScreenDriver_t (Display *dpy, int scrNum);
typedef const char * glXGetDriverConfig_t (const char *driverName);
glXGetScreenDriver_t *GetScreenDriver;
glXGetDriverConfig_t *GetDriverConfig;
enum INFO_FUNC {
LIST, NSCREENS, DRIVER, OPTIONS
};
void printUsage (void);
void printUsage (void) {
fprintf (stderr,
"Usage: xdriinfo [-display <dpy>] [command]\n"
"Commands:\n"
" nscreens print the number of screens on display\n"
" driver screen print the DRI driver name of screen\n"
" options screen|driver print configuration information about screen or driver\n"
"If no command is given then the DRI drivers for all screens are listed.\n");
}
int main (int argc, char *argv[]) {
Display *dpy;
int nScreens, screenNum, i;
enum INFO_FUNC func = LIST;
char *funcArg = NULL;
char *dpyName = NULL;
GetScreenDriver = (glXGetScreenDriver_t *)glXGetProcAddressARB ((const GLubyte *)"glXGetScreenDriver");
GetDriverConfig = (glXGetDriverConfig_t *)glXGetProcAddressARB ((const GLubyte *)"glXGetDriverConfig");
if (!GetScreenDriver || !GetDriverConfig) {
fprintf (stderr, "libGL is too old.\n");
return 1;
}
/* parse the command line */
for (i = 1; i < argc; ++i) {
char **argPtr = NULL;
if (!strcmp (argv[i], "-display"))
argPtr = &dpyName;
else if (!strcmp (argv[i], "nscreens"))
func = NSCREENS;
else if (!strcmp (argv[i], "driver")) {
func = DRIVER;
argPtr = &funcArg;
} else if (!strcmp (argv[i], "options")) {
func = OPTIONS;
argPtr = &funcArg;
} else {
printUsage ();
return 1;
}
if (argPtr) {
if (++i == argc) {
printUsage ();
return 1;
}
*argPtr = argv[i];
}
}
/* parse screen number argument */
if (func == DRIVER || func == OPTIONS) {
if (sscanf (funcArg, "%i", &screenNum) != 1)
screenNum = -1;
else if (screenNum < 0) {
fprintf (stderr, "Negative screen number \"%s\".\n", funcArg);
return 1;
}
}
/* if the argument to the options command is a driver name, we can handle
* it without opening an X connection */
if (func == OPTIONS && screenNum == -1) {
const char *options = (*GetDriverConfig) (funcArg);
if (!options) {
fprintf (stderr,
"Driver \"%s\" is not installed or does not support configuration.\n",
funcArg);
return 1;
}
printf ("%s", options);
if (isatty (STDOUT_FILENO))
printf ("\n");
return 0;
}
/* driver command needs a valid screen number */
else if (func == DRIVER && screenNum == -1) {
fprintf (stderr, "Invalid screen number \"%s\".\n", funcArg);
return 1;
}
/* open display and count the number of screens */
if (!(dpy = XOpenDisplay (dpyName))) {
fprintf (stderr, "Error: Couldn't open display\n");
return 1;
}
nScreens = ScreenCount (dpy);
/* final check on the screen number argument (if any)*/
if ((func == DRIVER || func == OPTIONS) && screenNum >= nScreens) {
fprintf (stderr, "Screen number \"%d\" out of range.\n", screenNum);
return 1;
}
switch (func) {
case NSCREENS:
printf ("%d", nScreens);
if (isatty (STDOUT_FILENO))
printf ("\n");
break;
case DRIVER: {
const char *name = (*GetScreenDriver) (dpy, screenNum);
if (!name) {
fprintf (stderr, "Screen \"%d\" is not direct rendering capable.\n",
screenNum);
return 1;
}
printf ("%s", name);
if (isatty (STDOUT_FILENO))
printf ("\n");
break;
}
case OPTIONS: {
const char *name = (*GetScreenDriver) (dpy, screenNum), *options;
if (!name) {
fprintf (stderr, "Screen \"%d\" is not direct rendering capable.\n",
screenNum);
return 1;
}
options = (*GetDriverConfig) (name);
if (!options) {
fprintf (stderr,
"Driver \"%s\" is not installed or does not support configuration.\n",
name);
return 1;
}
printf ("%s", options);
if (isatty (STDOUT_FILENO))
printf ("\n");
break;
}
case LIST:
for (i = 0; i < nScreens; ++i) {
const char *name = (*GetScreenDriver) (dpy, i);
if (name)
printf ("Screen %d: %s\n", i, name);
else
printf ("Screen %d: not direct rendering capable.\n", i);
}
}
return 0;
}
|
