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      1 /*
      2  * libjingle
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "talk/media/base/cpuid.h"
     29 
     30 #include <iostream>
     31 
     32 #include "webrtc/base/basictypes.h"
     33 #include "webrtc/base/gunit.h"
     34 #include "webrtc/base/systeminfo.h"
     35 
     36 TEST(CpuInfoTest, CpuId) {
     37   LOG(LS_INFO) << "ARM: "
     38       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasARM);
     39   LOG(LS_INFO) << "NEON: "
     40       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasNEON);
     41   LOG(LS_INFO) << "X86: "
     42       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasX86);
     43   LOG(LS_INFO) << "SSE2: "
     44       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasSSE2);
     45   LOG(LS_INFO) << "SSSE3: "
     46       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasSSSE3);
     47   LOG(LS_INFO) << "SSE41: "
     48       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasSSE41);
     49   LOG(LS_INFO) << "SSE42: "
     50       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasSSE42);
     51   LOG(LS_INFO) << "AVX: "
     52       << cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasAVX);
     53   bool has_arm = cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasARM);
     54   bool has_x86 = cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasX86);
     55   EXPECT_FALSE(has_arm && has_x86);
     56 }
     57 
     58 TEST(CpuInfoTest, IsCoreIOrBetter) {
     59   bool core_i_or_better = cricket::IsCoreIOrBetter();
     60   // Tests the function is callable.  Run on known hardware to confirm.
     61   LOG(LS_INFO) << "IsCoreIOrBetter: " << core_i_or_better;
     62 
     63   // All Core I CPUs have SSE 4.1.
     64   if (core_i_or_better) {
     65     EXPECT_TRUE(cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasSSE41));
     66     EXPECT_TRUE(cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasSSSE3));
     67   }
     68 
     69   // All CPUs that lack SSE 4.1 are not Core I CPUs.
     70   if (!cricket::CpuInfo::TestCpuFlag(cricket::CpuInfo::kCpuHasSSE41)) {
     71     EXPECT_FALSE(core_i_or_better);
     72   }
     73 }
     74 
     75