/*
  *  Copyright 2011 The LibYuv 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.
  */
 
 #ifndef INCLUDE_LIBYUV_CPU_ID_H_  // NOLINT
 #define INCLUDE_LIBYUV_CPU_ID_H_
 
 #ifdef __cplusplus
 namespace libyuv {
 extern "C" {
 #endif
 
 // Internal flag to indicate cpuid is initialized.
 static const int kCpuInitialized = 0x1;
 
 // These flags are only valid on ARM processors.
 static const int kCpuHasARM = 0x2;
 static const int kCpuHasNEON = 0x4;
 // 0x8 reserved for future ARM flag.
 
 // These flags are only valid on x86 processors.
 static const int kCpuHasX86 = 0x10;
 static const int kCpuHasSSE2 = 0x20;
 static const int kCpuHasSSSE3 = 0x40;
 static const int kCpuHasSSE41 = 0x80;
 static const int kCpuHasSSE42 = 0x100;
 static const int kCpuHasAVX = 0x200;
 // 0x400 reserved for AVX2.
 
 // Detect CPU has SSE2 etc.
 // Test_flag parameter should be one of kCpuHas constants above.
 // returns non-zero if instruction set is detected
 static __inline int TestCpuFlag(int test_flag) {
   extern int cpu_info_;
   extern int InitCpuFlags();
   return (cpu_info_ ? cpu_info_ : InitCpuFlags()) & test_flag;
 }
 
 // For testing, allow CPU flags to be disabled.
 // ie MaskCpuFlags(~kCpuHasSSSE3) to disable SSSE3.
 // MaskCpuFlags(-1) to enable all cpu specific optimizations.
 // MaskCpuFlags(0) to disable all cpu specific optimizations.
 void MaskCpuFlags(int enable_flags);
 
 // Low level cpuid for X86.  Returns zeros on other CPUs.
 void CpuId(int cpu_info[4], int info_type);
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif
 
 #endif  // INCLUDE_LIBYUV_CPU_ID_H_  NOLINT