summaryrefslogtreecommitdiff
path: root/pixman/pixman-cpu.c
blob: 5cef480e2e006c0b79c35d978c430357c0bd59f2 (plain)
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
/*
 * Copyright © 2000 SuSE, Inc.
 * Copyright © 2007 Red Hat, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of SuSE not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  SuSE makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>

#include "pixman-private.h"

pixman_bool_t
_pixman_disabled (const char *name)
{
    const char *env;

    if ((env = getenv ("PIXMAN_DISABLE")))
    {
	do
	{
	    const char *end;
	    int len;

	    if ((end = strchr (env, ' ')))
		len = end - env;
	    else
		len = strlen (env);

	    if (strlen (name) == len && strncmp (name, env, len) == 0)
	    {
		printf ("pixman: Disabled %s implementation\n", name);
		return TRUE;
	    }

	    env += len;
	}
	while (*env++);
    }

    return FALSE;
}

pixman_implementation_t *
_pixman_choose_implementation (void)
{
    pixman_implementation_t *imp;

    imp = _pixman_implementation_create_general();

    if (!_pixman_disabled ("fast"))
	imp = _pixman_implementation_create_fast_path (imp);

    imp = _pixman_x86_get_implementations (imp);
    imp = _pixman_arm_get_implementations (imp);
    imp = _pixman_ppc_get_implementations (imp);
    imp = _pixman_mips_get_implementations (imp);

    imp = _pixman_implementation_create_noop (imp);

    return imp;
}