From 017a18f42e0a75ba4c2d0f5bf1deabcb2efc5bde Mon Sep 17 00:00:00 2001
From: Kyle K <190571+Docteh@users.noreply.github.com>
Date: Fri, 20 May 2022 19:39:12 -0700
Subject: [PATCH] Logging: Report Post Windows 10 2004 versions, like Windows
 11

Qt5 and Qt6 don't really do a good job of reporting Windows versions past the 2004 version.

Current: Windows 10 Version 2009
This Patch: Windows 10 Version 21H1 (Build 19043.1706)
Also: Windows 11 Version 21H2 (Build 22000.675)

Fixes: #8362
---
 src/yuzu/main.cpp | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp
index f4a9a7171a..c7fbc7894c 100644
--- a/src/yuzu/main.cpp
+++ b/src/yuzu/main.cpp
@@ -198,6 +198,31 @@ static void RemoveCachedContents() {
     Common::FS::RemoveDirRecursively(offline_system_data);
 }
 
+static QString PrettyProductName() {
+#ifdef _WIN32
+    // After Windows 10 Version 2004, Microsoft decided to switch to a different notation: 20H2
+    // With that notation change they changed the registry key used to denote the current version
+    QSettings windows_registry(
+        QStringLiteral("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"),
+        QSettings::NativeFormat);
+    const QString release_id = windows_registry.value(QStringLiteral("ReleaseId")).toString();
+    if (release_id == QStringLiteral("2009")) {
+        const u32 current_build = windows_registry.value(QStringLiteral("CurrentBuild")).toUInt();
+        const QString display_version =
+            windows_registry.value(QStringLiteral("DisplayVersion")).toString();
+        const u32 ubr = windows_registry.value(QStringLiteral("UBR")).toUInt();
+        u32 version = 10;
+        if (current_build >= 22000) {
+            version = 11;
+        }
+        return QStringLiteral("Windows %1 Version %2 (Build %3.%4)")
+            .arg(QString::number(version), display_version, QString::number(current_build),
+                 QString::number(ubr));
+    }
+#endif
+    return QSysInfo::prettyProductName();
+}
+
 GMainWindow::GMainWindow()
     : ui{std::make_unique<Ui::MainWindow>()}, system{std::make_unique<Core::System>()},
       input_subsystem{std::make_shared<InputCommon::InputSubsystem>()},
@@ -259,7 +284,7 @@ GMainWindow::GMainWindow()
     }
     LOG_INFO(Frontend, "Host CPU: {}", cpu_string);
 #endif
-    LOG_INFO(Frontend, "Host OS: {}", QSysInfo::prettyProductName().toStdString());
+    LOG_INFO(Frontend, "Host OS: {}", PrettyProductName().toStdString());
     LOG_INFO(Frontend, "Host RAM: {:.2f} GiB",
              Common::GetMemInfo().TotalPhysicalMemory / f64{1_GiB});
     LOG_INFO(Frontend, "Host Swap: {:.2f} GiB", Common::GetMemInfo().TotalSwapMemory / f64{1_GiB});