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 */
34 void
_mesa_get_cpu_features(void)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 */
48 char *
_mesa_get_cpu_string(void)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