--- /dev/null
+/*
+ * 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, 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;
+}