libvpx: Pull from upstream

source/libvpx/vpx_ports/x86_cpuid.c

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