CPU features check

Engine/Utils/Perfs.hpp

@@ -1,6 +1,84 @@
 #pragma once
 
 #include <cstddef>
+#include <cpuid.h>
 
+
+#ifndef __cplusplus
+#error This header requires C++
+#endif
+
+//
+//  CPU related functions
+//
+inline bool PerfsCPUSIMDReady(void) noexcept {
+#if !defined(DISABLE_INTRINSICS)
+    int CPUInfo[4] = {-1};
+
+#if defined(__GNUC__)
+    __cpuid(0, CPUInfo[0], CPUInfo[1], CPUInfo[2], CPUInfo[3]);
+#else
+    __cpuid(CPUInfo, 0);
+#endif
+
+#ifdef __AVX2__
+    if (CPUInfo[0] < 7)
+        return false;
+#else
+    if (CPUInfo[0] < 1)
+        return false;
+#endif
+
+#if defined(__GNUC__)
+    __cpuid(1, CPUInfo[0], CPUInfo[1], CPUInfo[2], CPUInfo[3]);
+#else
+    __cpuid(CPUInfo, 1);
+#endif
+
+#if defined(__AVX2__) || defined(AVX2_INTRINSICS)
+    // The compiler can emit FMA3 instructions even without explicit intrinsics use
+    if ((CPUInfo[2] & 0x38081001) != 0x38081001)
+        return false; // No F16C/AVX/OSXSAVE/SSE4.1/FMA3/SSE3 support
+#elif defined(FMA3_INTRINSICS) && defined(F16C_INTRINSICS)
+    if ((CPUInfo[2] & 0x38081001) != 0x38081001)
+        return false; // No F16C/AVX/OSXSAVE/SSE4.1/FMA3/SSE3 support
+#elif defined(FMA3_INTRINSICS)
+    if ((CPUInfo[2] & 0x18081001) != 0x18081001)
+        return false; // No AVX/OSXSAVE/SSE4.1/FMA3/SSE3 support
+#elif defined(F16C_INTRINSICS)
+    if ((CPUInfo[2] & 0x38080001) != 0x38080001)
+        return false; // No F16C/AVX/OSXSAVE/SSE4.1/SSE3 support
+#elif defined(__AVX__) || defined(AVX_INTRINSICS)
+    if ((CPUInfo[2] & 0x18080001) != 0x18080001)
+        return false; // No AVX/OSXSAVE/SSE4.1/SSE3 support
+#elif defined(SSE4_INTRINSICS)
+    if ((CPUInfo[2] & 0x80001) != 0x80001)
+        return false; // No SSE3/SSE4.1 support
+#elif defined(SSE3_INTRINSICS)
+    if (!(CPUInfo[2] & 0x1))
+        return false; // No SSE3 support
+#endif
+
+    // The x64 processor model requires SSE2 support, but no harm in checking
+    if ((CPUInfo[3] & 0x6000000) != 0x6000000)
+        return false; // No SSE2/SSE support
+
+#if defined(__AVX2__) || defined(AVX2_INTRINSICS)
+#if defined(__GNUC__)
+    __cpuid_count(7, 0, CPUInfo[0], CPUInfo[1], CPUInfo[2], CPUInfo[3]);
+#else
+    __cpuidex(CPUInfo, 7, 0);
+#endif
+    if (!(CPUInfo[1] & 0x20))
+        return false; // No AVX2 support
+#endif
+    return true;
+#endif
+    return true;
+}
+
+//
+//  RAM related functions
+//
 const size_t PerfsGetVirtMem(void);
 const size_t PerfsGetPhysMem(void);

conanfile.py

@@ -34,7 +34,7 @@ class ProtoTank(ConanFile):
             self.options["sfml"].shared = True
     
     def requirements(self):
-        self.requires("sfml/2.6.1")
+        self.requires("sfml/[~2.6]")
         
 #    def layout(self):
 #        cmake_layout(self)