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64 lines
2.6 KiB
C
64 lines
2.6 KiB
C
/* libFLAC - Free Lossless Audio Codec library
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* Copyright (C) 2001 Josh Coalson
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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 "private/cpu.h"
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#include<stdlib.h>
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#include<stdio.h>
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const unsigned FLAC__CPUINFO_IA32_CPUID_CMOV = 0x00008000;
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const unsigned FLAC__CPUINFO_IA32_CPUID_MMX = 0x00800000;
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const unsigned FLAC__CPUINFO_IA32_CPUID_FXSR = 0x01000000;
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const unsigned FLAC__CPUINFO_IA32_CPUID_SSE = 0x02000000;
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const unsigned FLAC__CPUINFO_IA32_CPUID_SSE2 = 0x04000000;
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void FLAC__cpu_info(FLAC__CPUInfo *info)
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{
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#ifdef FLAC__CPU_IA32
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fprintf(stderr,"@@@ FLAC__CPU_IA32 defined\n");
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info->type = FLAC__CPUINFO_TYPE_IA32;
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#if !defined FLAC__NO_ASM && defined FLAC__HAS_NASM
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fprintf(stderr,"@@@ !defined FLAC__NO_ASM && defined FLAC__HAS_NASM\n");
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info->use_asm = true;
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{
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unsigned cpuid = FLAC__cpu_info_asm_i386();
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info->data.ia32.cmov = (cpuid & FLAC__CPUINFO_IA32_CPUID_CMOV)? true : false;
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info->data.ia32.mmx = (cpuid & FLAC__CPUINFO_IA32_CPUID_MMX)? true : false;
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info->data.ia32.fxsr = (cpuid & FLAC__CPUINFO_IA32_CPUID_FXSR)? true : false;
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info->data.ia32.sse = (cpuid & FLAC__CPUINFO_IA32_CPUID_SSE)? true : false; /* @@@ also need to check for operating system support */
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info->data.ia32.sse2 = (cpuid & FLAC__CPUINFO_IA32_CPUID_SSE2)? true : false; /* @@@ also need to check for operating system support */
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fprintf(stderr,"@@@ \tcpuid=%08X\n",cpuid);
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fprintf(stderr,"@@@ \tcmov=%u\n",info->data.ia32.cmov);
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fprintf(stderr,"@@@ \tmmx=%u\n",info->data.ia32.mmx);
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fprintf(stderr,"@@@ \tfxsr=%u\n",info->data.ia32.fxsr);
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fprintf(stderr,"@@@ \tsse=%u\n",info->data.ia32.sse);
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fprintf(stderr,"@@@ \tsse2=%u\n",info->data.ia32.sse2);
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}
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#else
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fprintf(stderr,"@@@ not: !defined FLAC__NO_ASM && defined FLAC__HAS_NASM\n");
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info->use_asm = true;
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info->use_asm = false;
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#endif
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#else
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fprintf(stderr,"@@@ FLAC__CPU_UNKNOWN\n");
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info->type = FLAC__CPUINFO_TYPE_UNKNOWN;
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info->use_asm = false;
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#endif
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}
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