media/libvpx/vpx_ports/x86_cpuid.c@ac0c01689b40 (annotated)
media/libvpx/vpx_ports/x86_cpuid.c
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license |
| michael@0 | 5 | * that can be found in the LICENSE file in the root of the source |
| michael@0 | 6 | * tree. An additional intellectual property rights grant can be found |
| michael@0 | 7 | * in the file PATENTS. All contributing project authors may |
| michael@0 | 8 | * be found in the AUTHORS file in the root of the source tree. |
| michael@0 | 9 | */ |
| michael@0 | 10 | |
| michael@0 | 11 | #include <string.h> |
| michael@0 | 12 | #include "x86.h" |
| michael@0 | 13 | |
| michael@0 | 14 | struct cpuid_vendors { |
| michael@0 | 15 | char vendor_string[12]; |
| michael@0 | 16 | vpx_cpu_t vendor_id; |
| michael@0 | 17 | }; |
| michael@0 | 18 | |
| michael@0 | 19 | static struct cpuid_vendors cpuid_vendor_list[VPX_CPU_LAST] = { |
| michael@0 | 20 | { "AuthenticAMD", VPX_CPU_AMD }, |
| michael@0 | 21 | { "AMDisbetter!", VPX_CPU_AMD_OLD }, |
| michael@0 | 22 | { "CentaurHauls", VPX_CPU_CENTAUR }, |
| michael@0 | 23 | { "CyrixInstead", VPX_CPU_CYRIX }, |
| michael@0 | 24 | { "GenuineIntel", VPX_CPU_INTEL }, |
| michael@0 | 25 | { "NexGenDriven", VPX_CPU_NEXGEN }, |
| michael@0 | 26 | { "Geode by NSC", VPX_CPU_NSC }, |
| michael@0 | 27 | { "RiseRiseRise", VPX_CPU_RISE }, |
| michael@0 | 28 | { "SiS SiS SiS ", VPX_CPU_SIS }, |
| michael@0 | 29 | { "GenuineTMx86", VPX_CPU_TRANSMETA }, |
| michael@0 | 30 | { "TransmetaCPU", VPX_CPU_TRANSMETA_OLD }, |
| michael@0 | 31 | { "UMC UMC UMC ", VPX_CPU_UMC }, |
| michael@0 | 32 | { "VIA VIA VIA ", VPX_CPU_VIA }, |
| michael@0 | 33 | }; |
| michael@0 | 34 | |
| michael@0 | 35 | vpx_cpu_t vpx_x86_vendor(void) { |
| michael@0 | 36 | unsigned int reg_eax; |
| michael@0 | 37 | unsigned int vs[3]; |
| michael@0 | 38 | int i; |
| michael@0 | 39 | |
| michael@0 | 40 | /* Get the Vendor String from the CPU */ |
| michael@0 | 41 | cpuid(0, reg_eax, vs[0], vs[2], vs[1]); |
| michael@0 | 42 | |
| michael@0 | 43 | for (i = 0; i < VPX_CPU_LAST; i++) { |
| michael@0 | 44 | if (strncmp((const char *)vs, cpuid_vendor_list[i].vendor_string, 12) == 0) |
| michael@0 | 45 | return (cpuid_vendor_list[i].vendor_id); |
| michael@0 | 46 | } |
| michael@0 | 47 | |
| michael@0 | 48 | return VPX_CPU_UNKNOWN; |
| michael@0 | 49 | } |
