50 строки
1.5 KiB
C
50 строки
1.5 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <string.h>
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#include "x86.h"
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struct cpuid_vendors {
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char vendor_string[12];
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vpx_cpu_t vendor_id;
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};
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static struct cpuid_vendors cpuid_vendor_list[VPX_CPU_LAST] = {
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{ "AuthenticAMD", VPX_CPU_AMD },
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{ "AMDisbetter!", VPX_CPU_AMD_OLD },
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{ "CentaurHauls", VPX_CPU_CENTAUR },
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{ "CyrixInstead", VPX_CPU_CYRIX },
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{ "GenuineIntel", VPX_CPU_INTEL },
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{ "NexGenDriven", VPX_CPU_NEXGEN },
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{ "Geode by NSC", VPX_CPU_NSC },
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{ "RiseRiseRise", VPX_CPU_RISE },
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{ "SiS SiS SiS ", VPX_CPU_SIS },
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{ "GenuineTMx86", VPX_CPU_TRANSMETA },
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{ "TransmetaCPU", VPX_CPU_TRANSMETA_OLD },
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{ "UMC UMC UMC ", VPX_CPU_UMC },
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{ "VIA VIA VIA ", VPX_CPU_VIA },
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};
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vpx_cpu_t vpx_x86_vendor(void) {
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unsigned int reg_eax;
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unsigned int vs[3];
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int i;
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/* Get the Vendor String from the CPU */
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cpuid(0, 0, reg_eax, vs[0], vs[2], vs[1]);
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for (i = 0; i < VPX_CPU_LAST; i++) {
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if (strncmp((const char *)vs, cpuid_vendor_list[i].vendor_string, 12) == 0)
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return (cpuid_vendor_list[i].vendor_id);
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}
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return VPX_CPU_UNKNOWN;
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}
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