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Added CPU detection.
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.
This commit is contained in:
Wim Taymans
parent
2fa9336ace
commit
8d2a4dfbec
7 changed files with 140 additions and 4 deletions
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@ -15,6 +15,8 @@ libgst_la_SOURCES = \
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gstbuffer.c \
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gstbufferpool.c \
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gstclock.c \
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gstcpu.c \
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gstcpuid_i386.s \
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gstelement.c \
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gstelementfactory.c \
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gstbin.c \
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@ -42,6 +44,7 @@ libgstinclude_HEADERS = \
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gstbuffer.h \
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gstbufferpool.h \
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gstclock.h \
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gstcpu.h \
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gstelement.h \
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gstbin.h \
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gstpipeline.h \
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@ -36,6 +36,7 @@ void gst_init(int *argc,char **argv[]) {
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gtk_init(argc,argv);
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_gst_cpu_initialize();
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_gst_type_initialize();
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_gst_plugin_initialize();
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_gst_buffer_initialize();
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@ -30,8 +30,8 @@
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#include <gst/gstobject.h>
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#include <gst/gstpad.h>
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#include <gst/gstbuffer.h>
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#include <gst/gstcpu.h>
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#include <gst/gstelement.h>
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#include <gst/gstbin.h>
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#include <gst/gstpipeline.h>
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#include <gst/gstthread.h>
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49
gst/gstcpu.c
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49
gst/gstcpu.c
Normal file
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@ -0,0 +1,49 @@
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/* 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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33
gst/gstcpu.h
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33
gst/gstcpu.h
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@ -0,0 +1,33 @@
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/* 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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#ifndef __GST_CPU_H__
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#define __GST_CPU_H__
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#include <glib.h>
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#define GST_CPU_FLAG_MMX (1 << 0)
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#define GST_CPU_FLAG_SSE (1 << 1)
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void _gst_cpu_initialize();
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guint32 gst_cpu_get_flags();
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#endif /* __GST_CPU_H__ */
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45
gst/gstcpuid_i386.s
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45
gst/gstcpuid_i386.s
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@ -0,0 +1,45 @@
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.text
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.globl gst_cpuid_i386
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.type gst_cpuid_i386,@function
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gst_cpuid_i386:
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pushl %ebp
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movl %esp,%ebp
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pushl %edi
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pushl %ebx
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pushl %ecx
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pushl %edx
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movl 8(%ebp),%eax
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cpuid
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movl 12(%ebp),%edi
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test %edi,%edi
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jz L1
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movl %eax,(%edi)
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L1: movl 16(%ebp),%edi
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test %edi,%edi
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jz L2
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movl %ebx,(%edi)
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L2: movl 20(%ebp),%edi
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test %edi,%edi
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jz L3
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movl %ecx,(%edi)
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L3: movl 24(%ebp),%edi
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test %edi,%edi
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jz L4
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movl %edx,(%edi)
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L4: popl %edx
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popl %ecx
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popl %ebx
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popl %edi
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movl %ebp,%esp
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popl %ebp
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ret
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/ doesn't work in user mode (MSRs are privileged)
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.globl siddisable
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siddisable:
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movl 0x119,%ecx
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rdmsr
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orl 0x200000,%eax
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wrmsr
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ret
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@ -20,6 +20,7 @@
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#include <config.h>
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#include <gst/gstcpu.h>
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#include "gstidct.h"
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#include "dct.h"
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@ -33,10 +34,14 @@ GstIDCT *gst_idct_new(GstIDCTMethod method)
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if (method == GST_IDCT_DEFAULT) {
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#ifdef HAVE_LIBMMX
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method = GST_IDCT_MMX32;
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#else
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method = GST_IDCT_FAST_INT;
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if (gst_cpu_get_flags() & GST_CPU_FLAG_MMX) {
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method = GST_IDCT_MMX;
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}
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else
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#endif
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{
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method = GST_IDCT_FAST_INT;
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}
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}
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new->convert_sparse = gst_idct_int_sparse_idct;
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