[XAM] Added specific ctor for X_ACHIEVEMENT_UNLOCK_TIME

Added method X_ACHIEVEMENT_UNLOCK_TIME::to_time_point

src/xenia/kernel/xam/achievement_backends/gpd_achievement_backend.cc

@@ -43,8 +43,7 @@ void GpdAchievementBackend::EarnAchievement(const uint64_t xuid,
   achievement->flags = achievement->flags |
                        static_cast<uint32_t>(AchievementFlags::kAchieved) |
                        static_cast<uint32_t>(AchievementFlags::kAchievedOnline);
-  achievement->unlock_time.high_part = static_cast<uint32_t>(unlock_time >> 32);
+  achievement->unlock_time = unlock_time;
-  achievement->unlock_time.low_part = static_cast<uint32_t>(unlock_time);
 
   SaveAchievementData(xuid, title_id, achievement_id);
 }

src/xenia/kernel/xam/achievement_manager.h

@@ -15,6 +15,7 @@
 #include <string>
 #include <vector>
 
+#include "xenia/base/chrono.h"
 #include "xenia/kernel/util/xdbf_utils.h"
 #include "xenia/xbox.h"
 
@@ -53,6 +54,23 @@ enum class AchievementFlags : uint32_t {
 struct X_ACHIEVEMENT_UNLOCK_TIME {
   xe::be<uint32_t> high_part;
   xe::be<uint32_t> low_part;
+
+  X_ACHIEVEMENT_UNLOCK_TIME() {
+    high_part = 0;
+    low_part = 0;
+  }
+
+  X_ACHIEVEMENT_UNLOCK_TIME(uint64_t filetime) {
+    high_part = static_cast<uint32_t>(filetime >> 32);
+    low_part = static_cast<uint32_t>(filetime);
+  }
+
+  chrono::WinSystemClock::time_point to_time_point() const {
+    const uint64_t filetime =
+        (static_cast<uint64_t>(high_part) << 32) | low_part;
+
+    return chrono::WinSystemClock::from_file_time(filetime);
+  }
 };
 
 struct X_ACHIEVEMENT_DETAILS {

src/xenia/kernel/xam/xam_ui.cc

@@ -461,12 +461,8 @@ class GameAchievementsDialog final : public XamDialog {
       info.unlock_time = {};
 
       if (entry.IsUnlocked()) {
-        const uint64_t filetime_time =
+        info.unlock_time =
-            (static_cast<uint64_t>(entry.unlock_time.high_part) << 32) |
+            chrono::WinSystemClock::to_sys(entry.unlock_time.to_time_point());
-            entry.unlock_time.low_part;
-
-        info.unlock_time = chrono::WinSystemClock::to_sys(
-            chrono::WinSystemClock::from_file_time(filetime_time));
       }
 
       achievements_info_.insert({info.id, info});