2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
5 * gstcpu.c: CPU detection and architecture-specific routines
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
25 #include "gst_private.h"
30 static guint32 _gst_cpu_flags;
33 void gst_cpuid_i386(int,long *,long *,long *,long *);
34 #define gst_cpuid gst_cpuid_i386
37 #define gst_cpuid(o,a,b,c,d) (void)(a);(void)(b);(void)(c);
40 static gchar *stringcat (gchar *a,gchar *b) {
43 c = g_strconcat(a,b,NULL);
52 _gst_cpu_initialize (void)
54 gchar *featurelist = NULL;
56 long eax=0, ebx=0, ecx=0, edx=0;
58 gst_cpuid(1, &eax, &ebx, &ecx, &edx);
61 _gst_cpu_flags |= GST_CPU_FLAG_MMX;
62 featurelist = stringcat(featurelist,"MMX ");
65 _gst_cpu_flags |= GST_CPU_FLAG_SSE;
66 featurelist = stringcat(featurelist,"SSE ");
69 if (!_gst_cpu_flags) {
70 featurelist = stringcat(featurelist,"NONE");
73 GST_INFO (GST_CAT_GST_INIT, "CPU features: %s",featurelist);
78 gst_cpu_get_flags (void)
80 return _gst_cpu_flags;