xi2.c revision 35c4bbdf 
1/**
2 * Copyright © 2011 Red Hat, Inc.
3 *
4 *  Permission is hereby granted, free of charge, to any person obtaining a
5 *  copy of this software and associated documentation files (the "Software"),
6 *  to deal in the Software without restriction, including without limitation
7 *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 *  and/or sell copies of the Software, and to permit persons to whom the
9 *  Software is furnished to do so, subject to the following conditions:
10 *
11 *  The above copyright notice and this permission notice (including the next
12 *  paragraph) shall be included in all copies or substantial portions of the
13 *  Software.
14 *
15 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 *  DEALINGS IN THE SOFTWARE.
22 */
23
24#ifdef HAVE_DIX_CONFIG_H
25#include <dix-config.h>
26#endif
27
28#include <stdint.h>
29#include "inpututils.h"
30#include "inputstr.h"
31#include "assert.h"
32
33static void
34xi2mask_test(void)
35{
36    XI2Mask *xi2mask = NULL, *mergemask = NULL;
37    unsigned char *mask;
38    DeviceIntRec dev;
39    DeviceIntRec all_devices, all_master_devices;
40    int i;
41
42    all_devices.id = XIAllDevices;
43    inputInfo.all_devices = &all_devices;
44    all_master_devices.id = XIAllMasterDevices;
45    inputInfo.all_master_devices = &all_master_devices;
46
47    /* size >= nmasks * 2 for the test cases below */
48    xi2mask = xi2mask_new_with_size(MAXDEVICES + 2, (MAXDEVICES + 2) * 2);
49    assert(xi2mask);
50    assert(xi2mask->nmasks > 0);
51    assert(xi2mask->mask_size > 0);
52
53    assert(xi2mask_mask_size(xi2mask) == xi2mask->mask_size);
54    assert(xi2mask_num_masks(xi2mask) == xi2mask->nmasks);
55
56    mask = calloc(1, xi2mask_mask_size(xi2mask));
57    /* ensure zeros */
58    for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
59        const unsigned char *m = xi2mask_get_one_mask(xi2mask, i);
60
61        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
62    }
63
64    /* set various bits */
65    for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
66        const unsigned char *m;
67
68        xi2mask_set(xi2mask, i, i);
69
70        dev.id = i;
71        assert(xi2mask_isset(xi2mask, &dev, i));
72
73        m = xi2mask_get_one_mask(xi2mask, i);
74        SetBit(mask, i);
75        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
76        ClearBit(mask, i);
77    }
78
79    /* ensure zeros one-by-one */
80    for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
81        const unsigned char *m = xi2mask_get_one_mask(xi2mask, i);
82
83        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) != 0);
84        xi2mask_zero(xi2mask, i);
85        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
86    }
87
88    /* re-set, zero all */
89    for (i = 0; i < xi2mask_num_masks(xi2mask); i++)
90        xi2mask_set(xi2mask, i, i);
91    xi2mask_zero(xi2mask, -1);
92
93    for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
94        const unsigned char *m = xi2mask_get_one_mask(xi2mask, i);
95
96        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
97    }
98
99    for (i = 0; i < xi2mask_num_masks(xi2mask); i++) {
100        const unsigned char *m;
101
102        SetBit(mask, i);
103        xi2mask_set_one_mask(xi2mask, i, mask, xi2mask_mask_size(xi2mask));
104        m = xi2mask_get_one_mask(xi2mask, i);
105        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
106        ClearBit(mask, i);
107    }
108
109    mergemask = xi2mask_new_with_size(MAXDEVICES + 2, (MAXDEVICES + 2) * 2);
110    for (i = 0; i < xi2mask_num_masks(mergemask); i++) {
111        dev.id = i;
112        xi2mask_set(mergemask, i, i * 2);
113    }
114
115    /* xi2mask still has all i bits set, should now also have all i * 2 bits */
116    xi2mask_merge(xi2mask, mergemask);
117    for (i = 0; i < xi2mask_num_masks(mergemask); i++) {
118        const unsigned char *m = xi2mask_get_one_mask(xi2mask, i);
119
120        SetBit(mask, i);
121        SetBit(mask, i * 2);
122        assert(memcmp(mask, m, xi2mask_mask_size(xi2mask)) == 0);
123        ClearBit(mask, i);
124        ClearBit(mask, i * 2);
125    }
126
127    xi2mask_free(&xi2mask);
128    assert(xi2mask == NULL);
129
130    xi2mask_free(&mergemask);
131    assert(mergemask == NULL);
132    free(mask);
133}
134
135int
136main(int argc, char **argv)
137{
138    xi2mask_test();
139
140    return 0;
141}
142