1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include <string.h> 12 #include "x86.h" 13 14 struct cpuid_vendors 15 { 16 char vendor_string[12]; 17 vpx_cpu_t vendor_id; 18 }; 19 20 static struct cpuid_vendors cpuid_vendor_list[VPX_CPU_LAST] = 21 { 22 { "AuthenticAMD", VPX_CPU_AMD }, 23 { "AMDisbetter!", VPX_CPU_AMD_OLD }, 24 { "CentaurHauls", VPX_CPU_CENTAUR }, 25 { "CyrixInstead", VPX_CPU_CYRIX }, 26 { "GenuineIntel", VPX_CPU_INTEL }, 27 { "NexGenDriven", VPX_CPU_NEXGEN }, 28 { "Geode by NSC", VPX_CPU_NSC }, 29 { "RiseRiseRise", VPX_CPU_RISE }, 30 { "SiS SiS SiS ", VPX_CPU_SIS }, 31 { "GenuineTMx86", VPX_CPU_TRANSMETA }, 32 { "TransmetaCPU", VPX_CPU_TRANSMETA_OLD }, 33 { "UMC UMC UMC ", VPX_CPU_UMC }, 34 { "VIA VIA VIA ", VPX_CPU_VIA }, 35 }; 36 37 vpx_cpu_t vpx_x86_vendor(void) 38 { 39 unsigned int reg_eax; 40 unsigned int vs[3]; 41 int i; 42 43 /* Get the Vendor String from the CPU */ 44 cpuid(0, reg_eax, vs[0], vs[2], vs[1]); 45 46 for (i = 0; i < VPX_CPU_LAST; i++) 47 { 48 if (strncmp ((const char *)vs, cpuid_vendor_list[i].vendor_string, 12) == 0) 49 return (cpuid_vendor_list[i].vendor_id); 50 } 51 52 return VPX_CPU_UNKNOWN; 53 } 54
