From 56aedd6817ff58992272bca9a6bee86a6355a376 Mon Sep 17 00:00:00 2001
From: Daiyuu Nobori <dnobori.gitcommit@coe.ad.jp>
Date: Tue, 22 Feb 2022 19:37:29 +0100
Subject: [PATCH] Memory: Add LittleEndian16(), LittleEndian32() and
 LittleEndian64()

---
 src/Mayaqua/Memory.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 src/Mayaqua/Memory.h |  3 +++
 2 files changed, 45 insertions(+)

diff --git a/src/Mayaqua/Memory.c b/src/Mayaqua/Memory.c
index 8e97f8c1..315f89c0 100644
--- a/src/Mayaqua/Memory.c
+++ b/src/Mayaqua/Memory.c
@@ -3373,6 +3373,48 @@ UINT64 Endian64(UINT64 src)
 	}
 }
 
+// Endian conversion 16bit
+USHORT LittleEndian16(USHORT src)
+{
+	int x = 0x01000000;
+	if (*((char *)&x))
+	{
+		return Swap16(src);
+	}
+	else
+	{
+		return src;
+	}
+}
+
+// Endian conversion 32bit
+UINT LittleEndian32(UINT src)
+{
+	int x = 0x01000000;
+	if (*((char *)&x))
+	{
+		return Swap32(src);
+	}
+	else
+	{
+		return src;
+	}
+}
+
+// Endian conversion 64bit
+UINT64 LittleEndian64(UINT64 src)
+{
+	int x = 0x01000000;
+	if (*((char *)&x))
+	{
+		return Swap64(src);
+	}
+	else
+	{
+		return src;
+	}
+}
+
 // 16bit swap
 USHORT Swap16(USHORT value)
 {
diff --git a/src/Mayaqua/Memory.h b/src/Mayaqua/Memory.h
index c2b7029b..8b39cd9d 100644
--- a/src/Mayaqua/Memory.h
+++ b/src/Mayaqua/Memory.h
@@ -199,6 +199,9 @@ UINT64 Swap64(UINT64 value);
 USHORT Endian16(USHORT src);
 UINT Endian32(UINT src);
 UINT64 Endian64(UINT64 src);
+USHORT LittleEndian16(USHORT src);
+UINT LittleEndian32(UINT src);
+UINT64 LittleEndian64(UINT64 src);
 void EndianUnicode(wchar_t *str);
 
 BUF *NewBuf();