SystemInformation.h

#pragma once
 
struct plCpuFeatures
{
#if PL_ENABLED(PL_PLATFORM_ARCH_X86)
  //  Vendor
  bool Vendor_AMD = false;
  bool Vendor_Intel = false;
 
  //  OS Features
  bool OS_x64 = false;
  bool OS_AVX = false;
  bool OS_AVX512 = false;
 
  //  Misc.
  bool HW_MMX = false;
  bool HW_x64 = false;
  bool HW_ABM = false;
  bool HW_RDRAND = false;
  bool HW_RDSEED = false;
  bool HW_BMI1 = false;
  bool HW_BMI2 = false;
  bool HW_ADX = false;
  bool HW_MPX = false;
  bool HW_PREFETCHW = false;
  bool HW_PREFETCHWT1 = false;
  bool HW_RDPID = false;
 
  //  SIMD: 128-bit
  bool HW_SSE = false;
  bool HW_SSE2 = false;
  bool HW_SSE3 = false;
  bool HW_SSSE3 = false;
  bool HW_SSE41 = false;
  bool HW_SSE42 = false;
  bool HW_SSE4a = false;
  bool HW_AES = false;
  bool HW_SHA = false;
 
  //  SIMD: 256-bit
  bool HW_AVX = false;
  bool HW_XOP = false;
  bool HW_FMA3 = false;
  bool HW_FMA4 = false;
  bool HW_AVX2 = false;
 
  //  SIMD: 512-bit
  bool HW_AVX512_F = false;
  bool HW_AVX512_CD = false;
 
  //  Knights Landing
  bool HW_AVX512_PF = false;
  bool HW_AVX512_ER = false;
 
  //  Skylake Purley
  bool HW_AVX512_VL = false;
  bool HW_AVX512_BW = false;
  bool HW_AVX512_DQ = false;
 
  //  Cannon Lake
  bool HW_AVX512_IFMA = false;
  bool HW_AVX512_VBMI = false;
 
  //  Knights Mill
  bool HW_AVX512_VPOPCNTDQ = false;
  bool HW_AVX512_4FMAPS = false;
  bool HW_AVX512_4VNNIW = false;
 
  //  Cascade Lake
  bool HW_AVX512_VNNI = false;
 
  //  Cooper Lake
  bool HW_AVX512_BF16 = false;
 
  //  Ice Lake
  bool HW_AVX512_VBMI2 = false;
  bool HW_GFNI = false;
  bool HW_VAES = false;
  bool HW_AVX512_VPCLMUL = false;
  bool HW_AVX512_BITALG = false;
 
  bool IsAvx1Available() const { return OS_AVX && HW_AVX; }
  bool IsAvx2Available() const { return OS_AVX && HW_AVX2; }
#endif
 
  void Detect();
};
 
class PL_FOUNDATION_DLL plSystemInformation
{
public:
  plUInt64 GetInstalledMainMemory() const { return m_uiInstalledMainMemory; }
 
  plUInt64 GetAvailableMainMemory() const;
 
  plUInt32 GetMemoryPageSize() const { return m_uiMemoryPageSize; }
 
  plUInt32 GetCPUCoreCount() const { return m_uiCPUCoreCount; }
 
  float GetCPUUtilization() const;
 
  bool Is64BitOS() const { return m_bB64BitOS; }
 
  const char* GetPlatformName() const { return m_szPlatformName; }
 
  const char* GetHostName() const { return m_sHostName; }
 
  const char* GetBuildConfiguration() const { return m_szBuildConfiguration; }
 
  const plCpuFeatures& GetCpuFeatures() const { return m_CpuFeatures; }
 
public:
  static bool IsDebuggerAttached();
 
  static const plSystemInformation& Get()
  {
    if (!s_SystemInformation.m_bIsInitialized)
      Initialize();
 
    return s_SystemInformation;
  }
 
private:
  plUInt64 m_uiInstalledMainMemory;
  plUInt32 m_uiMemoryPageSize;
  plUInt32 m_uiCPUCoreCount;
  const char* m_szPlatformName = nullptr;
  const char* m_szBuildConfiguration = nullptr;
  char m_sHostName[256];
  bool m_bB64BitOS;
  bool m_bIsInitialized;
  plCpuFeatures m_CpuFeatures;
 
  static void Initialize();
 
  static plSystemInformation s_SystemInformation;
};