blob: 5bef56c0fe9c359546e477c4f040fe77532e1baf (
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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
*/
#include <tools/cpuid.hxx>
#include <cstdint>
namespace tools
{
namespace cpuid
{
#if defined(LO_SSE2_AVAILABLE)
namespace
{
#if defined(_MSC_VER)
#include <intrin.h>
void getCpuId(uint32_t array[4])
{
__cpuid((int*)array, 1);
}
#else
#include <cpuid.h>
void getCpuId(uint32_t array[4])
{
__get_cpuid(1, array + 0, array + 1, array + 2, array + 3);
}
#endif
}
bool hasSSE2()
{
uint32_t cpuInfoArray[] = {0, 0, 0, 0};
getCpuId(cpuInfoArray);
return (cpuInfoArray[3] & (1 << 26)) != 0;
}
#else
bool hasSSE2() { return false; }
#endif
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|