Switch timestamp format to combined UTC + local so fewer stupid hacks are required.

PortabilityLayer/CombinedTimestamp.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <stdint.h>
+
+namespace PortabilityLayer
+{
+	struct CombinedTimestamp
+	{
+		uint8_t m_utcTimestamp[8];
+
+		uint8_t m_localYear[4];
+		uint8_t m_localMonth;
+		uint8_t m_localDay;
+
+		uint8_t m_localHour;
+		uint8_t m_localMinute;
+		uint8_t m_localSecond;
+
+		uint8_t m_padding[3];
+
+		int64_t GetUTCTime() const;
+		void SetUTCTime(int64_t timestamp);
+
+		int32_t GetLocalYear() const;
+		void SetLocalYear(int32_t year);
+	};
+
+	inline int64_t CombinedTimestamp::GetUTCTime() const
+	{
+		int64_t result = 0;
+		for (int i = 0; i < 8; i++)
+			result |= static_cast<int64_t>(m_utcTimestamp[i]) << (i * 8);
+
+		return result;
+	}
+
+	void CombinedTimestamp::SetUTCTime(int64_t timestamp)
+	{
+		for (int i = 0; i < 8; i++)
+			m_utcTimestamp[i] = static_cast<uint8_t>((timestamp >> (i * 8)) & 0xff);
+	}
+
+	inline int32_t CombinedTimestamp::GetLocalYear() const
+	{
+		int32_t result = 0;
+		for (int i = 0; i < 4; i++)
+			result |= static_cast<int32_t>(m_localYear[i]) << (i * 8);
+
+		return result;
+	}
+
+	void CombinedTimestamp::SetLocalYear(int32_t timestamp)
+	{
+		for (int i = 0; i < 4; i++)
+			m_localYear[i] = static_cast<uint8_t>((timestamp >> (i * 8)) & 0xff);
+	}
+}