mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-25 19:21:06 +00:00
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
|
|
@ -15,6 +15,8 @@ libgst_la_SOURCES = \
|
|||
gstbuffer.c \
|
||||
gstbufferpool.c \
|
||||
gstclock.c \
|
||||
gstcpu.c \
|
||||
gstcpuid_i386.s \
|
||||
gstelement.c \
|
||||
gstelementfactory.c \
|
||||
gstbin.c \
|
||||
|
|
@ -42,6 +44,7 @@ libgstinclude_HEADERS = \
|
|||
gstbuffer.h \
|
||||
gstbufferpool.h \
|
||||
gstclock.h \
|
||||
gstcpu.h \
|
||||
gstelement.h \
|
||||
gstbin.h \
|
||||
gstpipeline.h \
|
||||
|
|
|
|||
|
|
@ -36,6 +36,7 @@ void gst_init(int *argc,char **argv[]) {
|
|||
|
||||
gtk_init(argc,argv);
|
||||
|
||||
_gst_cpu_initialize();
|
||||
_gst_type_initialize();
|
||||
_gst_plugin_initialize();
|
||||
_gst_buffer_initialize();
|
||||
|
|
|
|||
|
|
@ -30,8 +30,8 @@
|
|||
#include <gst/gstobject.h>
|
||||
#include <gst/gstpad.h>
|
||||
#include <gst/gstbuffer.h>
|
||||
#include <gst/gstcpu.h>
|
||||
#include <gst/gstelement.h>
|
||||
|
||||
#include <gst/gstbin.h>
|
||||
#include <gst/gstpipeline.h>
|
||||
#include <gst/gstthread.h>
|
||||
|
|
|
|||
49
gst/gstcpu.c
Normal file
49
gst/gstcpu.c
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
/* Gnome-Streamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
|
||||
#include "config.h"
|
||||
#include "gstcpu.h"
|
||||
|
||||
static guint32 _gst_cpu_flags;
|
||||
|
||||
#ifdef __i386__
|
||||
void gst_cpuid_i386(int,long *,long *,long *,long *);
|
||||
#define gst_cpuid gst_cpuid_i386
|
||||
|
||||
#else
|
||||
#define gst_cpuid(o,a,b,c,d)
|
||||
#endif
|
||||
|
||||
void _gst_cpu_initialize(void)
|
||||
{
|
||||
long eax=0, ebx=0, ecx=0, edx=0;
|
||||
|
||||
gst_cpuid(1, &eax, &ebx, &ecx, &edx);
|
||||
|
||||
if (edx & (1<<23)) _gst_cpu_flags |= GST_CPU_FLAG_MMX;
|
||||
if (edx & (1<<25)) _gst_cpu_flags |= GST_CPU_FLAG_SSE;
|
||||
|
||||
g_print("CPU features (%08x)\n", _gst_cpu_flags);
|
||||
}
|
||||
|
||||
guint32 gst_cpu_get_flags(void)
|
||||
{
|
||||
return _gst_cpu_flags;
|
||||
}
|
||||
33
gst/gstcpu.h
Normal file
33
gst/gstcpu.h
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
/* Gnome-Streamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef __GST_CPU_H__
|
||||
#define __GST_CPU_H__
|
||||
|
||||
#include <glib.h>
|
||||
|
||||
#define GST_CPU_FLAG_MMX (1 << 0)
|
||||
#define GST_CPU_FLAG_SSE (1 << 1)
|
||||
|
||||
void _gst_cpu_initialize();
|
||||
|
||||
guint32 gst_cpu_get_flags();
|
||||
|
||||
#endif /* __GST_CPU_H__ */
|
||||
45
gst/gstcpuid_i386.s
Normal file
45
gst/gstcpuid_i386.s
Normal file
|
|
@ -0,0 +1,45 @@
|
|||
.text
|
||||
.globl gst_cpuid_i386
|
||||
.type gst_cpuid_i386,@function
|
||||
gst_cpuid_i386:
|
||||
pushl %ebp
|
||||
movl %esp,%ebp
|
||||
pushl %edi
|
||||
pushl %ebx
|
||||
pushl %ecx
|
||||
pushl %edx
|
||||
movl 8(%ebp),%eax
|
||||
cpuid
|
||||
movl 12(%ebp),%edi
|
||||
test %edi,%edi
|
||||
jz L1
|
||||
movl %eax,(%edi)
|
||||
L1: movl 16(%ebp),%edi
|
||||
test %edi,%edi
|
||||
jz L2
|
||||
movl %ebx,(%edi)
|
||||
L2: movl 20(%ebp),%edi
|
||||
test %edi,%edi
|
||||
jz L3
|
||||
movl %ecx,(%edi)
|
||||
L3: movl 24(%ebp),%edi
|
||||
test %edi,%edi
|
||||
jz L4
|
||||
movl %edx,(%edi)
|
||||
L4: popl %edx
|
||||
popl %ecx
|
||||
popl %ebx
|
||||
popl %edi
|
||||
movl %ebp,%esp
|
||||
popl %ebp
|
||||
ret
|
||||
|
||||
/ doesn't work in user mode (MSRs are privileged)
|
||||
.globl siddisable
|
||||
siddisable:
|
||||
movl 0x119,%ecx
|
||||
rdmsr
|
||||
orl 0x200000,%eax
|
||||
wrmsr
|
||||
ret
|
||||
|
||||
|
|
@ -20,6 +20,7 @@
|
|||
|
||||
#include <config.h>
|
||||
|
||||
#include <gst/gstcpu.h>
|
||||
#include "gstidct.h"
|
||||
#include "dct.h"
|
||||
|
||||
|
|
@ -33,10 +34,14 @@ GstIDCT *gst_idct_new(GstIDCTMethod method)
|
|||
|
||||
if (method == GST_IDCT_DEFAULT) {
|
||||
#ifdef HAVE_LIBMMX
|
||||
method = GST_IDCT_MMX32;
|
||||
#else
|
||||
method = GST_IDCT_FAST_INT;
|
||||
if (gst_cpu_get_flags() & GST_CPU_FLAG_MMX) {
|
||||
method = GST_IDCT_MMX;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
method = GST_IDCT_FAST_INT;
|
||||
}
|
||||
}
|
||||
|
||||
new->convert_sparse = gst_idct_int_sparse_idct;
|
||||
|
|
|
|||
Loading…
Reference in a new issue