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#ifndef CPUINFO_H
#define CPUINFO_H
#define CPUID_FEATURES_SSE (1 << 25)
#define CPUID_FEATURES_SSE2 (1 << 26)
#if defined(_MSC_VER) && !UNITY_XENON
// define __cpuid intrinsic
#include <intrin.h>
#elif defined(__GNUC__) && UNITY_OSX && UNITY_SUPPORTS_SSE
// This has to be implemented in a PIC friendly way or osx web players will not compile
// http://sam.zoy.org/blog/2007-04-13-shlib-with-non-pic-code-have-inlin
#define __cpuid(array, func) \
{ \
__asm__ __volatile__("pushl %%ebx \n\t" /* save %ebx */ \
"cpuid \n\t" \
"movl %%ebx, %1 \n\t" /* save what cpuid just put in %ebx */ \
"popl %%ebx \n\t" /* restore the old %ebx */ \
: "=a"(array[0]), "=r"(array[1]), "=c"(array[2]), "=d"(array[3]) \
: "a"(func) \
: "cc");\
}
#else
#define __cpuid(a, b)
#endif
class CPUInfo
{
public:
CPUInfo();
inline unsigned int GetCPUIDFeatures() {return m_CPUIDFeatures;}
#ifdef UNITY_SUPPORTS_SSE
# if UNITY_AUTO_DETECT_VECTOR_UNIT
static __forceinline bool HasSSESupport()
{
AssertMsg(m_Initialized, "CPUInfo has not been initialized");
return m_IsSSESupported;
}
static __forceinline bool HasSSE2Support()
{
AssertMsg(m_Initialized, "CPUInfo has not been initialized");
return m_IsSSE2Supported;
}
# else
static inline bool HasSSESupport()
{
return true;
}
static inline bool HasSSE2Support()
{
return true;
}
# endif
#endif
static inline bool HasSSE3Support() { return m_IsSSE3Supported; }
static inline bool HasSupplementalSSE3Support() { return m_IsSupplementalSSE3Supported; }
static inline bool HasSSE41Support() { return m_IsSSE41Supported; }
static inline bool HasSSE42Support() { return m_IsSSE42Supported; }
static inline bool HasAVXSupport() { return m_IsAVXSupported; }
static inline bool HasAVX2Support() { return m_IsAVX2Supported; }
static inline bool HasAVX512Support() { return m_IsAVX512Supported; }
static inline bool HasFP16CSupport() { return m_IsFP16CSupported; }
static inline bool HasFMASupport() { return m_IsFMASupported; }
#if UNITY_SUPPORTS_NEON
#if UNITY_ANDROID
static inline bool HasNEONSupport()
{
AssertMsg(m_Initialized, "CPUInfo has not been initialized");
return m_IsNEONSupported;
}
#else
static inline bool HasNEONSupport()
{
return true;
}
#endif
#else
static inline bool HasNEONSupport()
{
return false;
}
#endif
private:
static bool m_Initialized;
static bool m_IsSSESupported;
static bool m_IsSSE2Supported;
static bool m_IsSSE3Supported;
static bool m_IsSupplementalSSE3Supported;
static bool m_IsSSE41Supported; // SSE 4.1
static bool m_IsSSE42Supported; // SSE 4.2
static bool m_IsAVXSupported;
static bool m_IsAVX2Supported;
static bool m_IsAVX512Supported;
static bool m_IsFP16CSupported; // FP16 conversions supported
static bool m_IsFMASupported; // fused multiply-add instructions
static bool m_IsNEONSupported;
static unsigned int m_CPUIDFeatures;
};
#endif // CPUINFO_H
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