First Commit

common/ByteSwap.h

@@ -0,0 +1,44 @@
+// SPDX-FileCopyrightText: 2002-2025 PCSX2 Dev Team
+// SPDX-License-Identifier: GPL-3.0+
+
+#pragma once
+
+#include <cstdint>
+#include <type_traits>
+
+#ifdef _MSC_VER
+#include <stdlib.h>
+#endif
+
+template <typename T>
+T ByteSwap(T value)
+{
+	if constexpr (std::is_signed_v<T>)
+	{
+		return static_cast<T>(ByteSwap(std::make_unsigned_t<T>(value)));
+	}
+	else if constexpr (std::is_same_v<T, std::uint16_t>)
+	{
+#ifdef _MSC_VER
+		return _byteswap_ushort(value);
+#else
+		return __builtin_bswap16(value);
+#endif
+	}
+	else if constexpr (std::is_same_v<T, std::uint32_t>)
+	{
+#ifdef _MSC_VER
+		return _byteswap_ulong(value);
+#else
+		return __builtin_bswap32(value);
+#endif
+	}
+	else if constexpr (std::is_same_v<T, std::uint64_t>)
+	{
+#ifdef _MSC_VER
+		return _byteswap_uint64(value);
+#else
+		return __builtin_bswap64(value);
+#endif
+	}
+}