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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8d2a4dfbec
Original commit message from CVS: Added CPU detection. Added SSE optimisation to mpeg_play Modified the mpeg2 decoder and gstidct to use cpu detection. Cleanups in the mpeg1 and mpeg2 decoders.
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gstcpu.h"
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static guint32 _gst_cpu_flags;
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#ifdef __i386__
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void gst_cpuid_i386(int,long *,long *,long *,long *);
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#define gst_cpuid gst_cpuid_i386
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#else
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#define gst_cpuid(o,a,b,c,d)
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#endif
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void _gst_cpu_initialize(void)
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{
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long eax=0, ebx=0, ecx=0, edx=0;
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gst_cpuid(1, &eax, &ebx, &ecx, &edx);
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if (edx & (1<<23)) _gst_cpu_flags |= GST_CPU_FLAG_MMX;
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if (edx & (1<<25)) _gst_cpu_flags |= GST_CPU_FLAG_SSE;
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g_print("CPU features (%08x)\n", _gst_cpu_flags);
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}
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guint32 gst_cpu_get_flags(void)
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{
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return _gst_cpu_flags;
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}
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