1/*
2 * Mesa 3-D graphics library
3 * Version:  7.5
4 *
5 * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26#include "main/compiler.h"
27#include "main/cpuinfo.h"
28
29
30/**
31 * This function should be called before the various "cpu_has_foo" macros
32 * are used.
33 */
34void
35_mesa_get_cpu_features(void)
36{
37#ifdef USE_X86_ASM
38   _mesa_get_x86_features();
39#endif
40}
41
42
43/**
44 * Return a string describing the CPU architexture and extensions that
45 * Mesa is using (such as SSE or Altivec).
46 * \return information string, free it with free()
47 */
48char *
49_mesa_get_cpu_string(void)
50{
51#define MAX_STRING 50
52   char *buffer;
53
54   buffer = (char *) malloc(MAX_STRING);
55   if (!buffer)
56      return NULL;
57
58   buffer[0] = 0;
59
60#ifdef USE_X86_ASM
61
62   if (_mesa_x86_cpu_features) {
63      strcat(buffer, "x86");
64   }
65
66# ifdef USE_MMX_ASM
67   if (cpu_has_mmx) {
68      strcat(buffer, (cpu_has_mmxext) ? "/MMX+" : "/MMX");
69   }
70# endif
71# ifdef USE_3DNOW_ASM
72   if (cpu_has_3dnow) {
73      strcat(buffer, (cpu_has_3dnowext) ? "/3DNow!+" : "/3DNow!");
74   }
75# endif
76# ifdef USE_SSE_ASM
77   if (cpu_has_xmm) {
78      strcat(buffer, (cpu_has_xmm2) ? "/SSE2" : "/SSE");
79   }
80# endif
81
82#elif defined(USE_SPARC_ASM)
83
84   strcat(buffer, "SPARC");
85
86#endif
87
88   assert(strlen(buffer) < MAX_STRING);
89
90   return buffer;
91}
92