latest SDK

2021-12-14 00:28:25 -07:00
commit 68b10d413b
492 changed files with 80542 additions and 0 deletions
--- a/pfc/cpuid.cpp
+++ b/pfc/cpuid.cpp
@@ -0,0 +1,64 @@
+#include "pfc.h"
+
+
+#if PFC_HAVE_CPUID
+
+namespace pfc {
+
+	bool query_cpu_feature_set(unsigned p_value) {
+#if _M_IX86_FP >= 2
+		// don't bother checking for SSE/SSE2 if compiled to use them
+		p_value &= ~(CPU_HAVE_SSE | CPU_HAVE_SSE2);
+		if (p_value == 0) return true;
+#endif
+
+#ifdef _MSC_VER
+		__try {
+#endif
+			if (p_value & (CPU_HAVE_SSE | CPU_HAVE_SSE2 | CPU_HAVE_SSE3 | CPU_HAVE_SSSE3 | CPU_HAVE_SSE41 | CPU_HAVE_SSE42)) {
+				int buffer[4];
+				__cpuid(buffer,1);
+				if (p_value & CPU_HAVE_SSE) {
+					if ((buffer[3]&(1<<25)) == 0) return false;
+				}
+				if (p_value & CPU_HAVE_SSE2) {
+					if ((buffer[3]&(1<<26)) == 0) return false;
+				}
+				if (p_value & CPU_HAVE_SSE3) {
+					if ((buffer[2]&(1<<0)) == 0) return false;
+				}
+				if (p_value & CPU_HAVE_SSSE3) {
+					if ((buffer[2]&(1<<9)) == 0) return false;
+				}
+				if (p_value & CPU_HAVE_SSE41) {
+					if ((buffer[2]&(1<<19)) == 0) return false;
+				}
+				if (p_value & CPU_HAVE_SSE42) {
+					if ((buffer[2]&(1<<20)) == 0) return false;
+				}
+			}
+	#ifdef _M_IX86
+			if (p_value & (CPU_HAVE_3DNOW_EX | CPU_HAVE_3DNOW)) {
+				int buffer_amd[4];
+				__cpuid(buffer_amd,0x80000000);
+				if ((unsigned)buffer_amd[0] < 0x80000001) return false;
+				__cpuid(buffer_amd,0x80000001);
+			
+				if (p_value & CPU_HAVE_3DNOW) {
+					if ((buffer_amd[3]&(1<<31)) == 0) return false;
+				}
+				if (p_value & CPU_HAVE_3DNOW_EX) {
+					if ((buffer_amd[3]&(1<<30)) == 0) return false;
+				}
+			}
+	#endif
+			return true;
+#ifdef _MSC_VER
+		} __except(1) {
+			return false;
+		}
+#endif
+	}
+}
+
+#endif