1 files changed, 55 insertions, 0 deletions
diff --git a/src/yuzu/qt_common.cpp b/src/yuzu/qt_common.cpp
new file mode 100644
index 0000000000..5ac9fe310c
--- /dev/null
+++ b/src/yuzu/qt_common.cpp
@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <QGuiApplication>
+#include <QStringLiteral>
+#include <QWindow>
+#include "common/logging/log.h"
+#include "core/frontend/emu_window.h"
+#include "yuzu/qt_common.h"
+
+#ifdef __linux__
+#include <qpa/qplatformnativeinterface.h>
+#endif
+
+namespace QtCommon {
+Core::Frontend::WindowSystemType GetWindowSystemType() {
+    // Determine WSI type based on Qt platform.
+    QString platform_name = QGuiApplication::platformName();
+    if (platform_name == QStringLiteral("windows"))
+        return Core::Frontend::WindowSystemType::Windows;
+    else if (platform_name == QStringLiteral("xcb"))
+        return Core::Frontend::WindowSystemType::X11;
+    else if (platform_name == QStringLiteral("wayland"))
+        return Core::Frontend::WindowSystemType::Wayland;
+    else if (platform_name == QStringLiteral("wayland-egl"))
+        return Core::Frontend::WindowSystemType::Wayland;
+    else if (platform_name == QStringLiteral("cocoa"))
+        return Core::Frontend::WindowSystemType::Cocoa;
+    else if (platform_name == QStringLiteral("android"))
+        return Core::Frontend::WindowSystemType::Android;
+
+    LOG_CRITICAL(Frontend, "Unknown Qt platform {}!", platform_name.toStdString());
+    return Core::Frontend::WindowSystemType::Windows;
+} // namespace Core::Frontend::WindowSystemType
+
+Core::Frontend::EmuWindow::WindowSystemInfo GetWindowSystemInfo(QWindow* window) {
+    Core::Frontend::EmuWindow::WindowSystemInfo wsi;
+    wsi.type = GetWindowSystemType();
+
+    // Our Win32 Qt external doesn't have the private API.
+#if defined(WIN32) || defined(__APPLE__)
+    wsi.render_surface = window ? reinterpret_cast<void*>(window->winId()) : nullptr;
+#else
+    QPlatformNativeInterface* pni = QGuiApplication::platformNativeInterface();
+    wsi.display_connection = pni->nativeResourceForWindow("display", window);
+    if (wsi.type == Core::Frontend::WindowSystemType::Wayland)
+        wsi.render_surface = window ? pni->nativeResourceForWindow("surface", window) : nullptr;
+    else
+        wsi.render_surface = window ? reinterpret_cast<void*>(window->winId()) : nullptr;
+#endif
+    wsi.render_surface_scale = window ? static_cast<float>(window->devicePixelRatio()) : 1.0f;
+
+    return wsi;
+}
+} // namespace QtCommon