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diff --git a/src/frontend/qt_sdl/Screen.cpp b/src/frontend/qt_sdl/Screen.cpp
index d8af6624..019ce246 100644
--- a/src/frontend/qt_sdl/Screen.cpp
+++ b/src/frontend/qt_sdl/Screen.cpp
@@ -30,6 +30,7 @@
#include <QPaintEvent>
#include <QPainter>
#include <QDebug>
+#include <QApplication>
#ifndef _WIN32
#ifndef APPLE
#include <qpa/qplatformnativeinterface.h>
@@ -596,23 +597,20 @@ void ScreenPanelGL::drawScreenGL()
glContext->SwapBuffers();
}
-qreal ScreenPanelGL::devicePixelRatioFromScreen() const
+qreal ScreenPanelGL::devicePixelRatioFromWindow() const
{
- const QScreen* screen_for_ratio = window()->windowHandle()->screen();
- if (!screen_for_ratio)
- screen_for_ratio = QGuiApplication::primaryScreen();
-
- return screen_for_ratio ? screen_for_ratio->devicePixelRatio() : static_cast<qreal>(1);
+ QWindow* window = windowHandle();
+ return window->devicePixelRatio();
}
int ScreenPanelGL::scaledWindowWidth() const
{
- return std::max(static_cast<int>(std::ceil(static_cast<qreal>(width()) * devicePixelRatioFromScreen())), 1);
+ return std::max(static_cast<int>(std::ceil(static_cast<qreal>(width()) * devicePixelRatioFromWindow())), 1);
}
int ScreenPanelGL::scaledWindowHeight() const
{
- return std::max(static_cast<int>(std::ceil(static_cast<qreal>(height()) * devicePixelRatioFromScreen())), 1);
+ return std::max(static_cast<int>(std::ceil(static_cast<qreal>(height()) * devicePixelRatioFromWindow())), 1);
}
std::optional<WindowInfo> ScreenPanelGL::getWindowInfo()
@@ -644,6 +642,7 @@ std::optional<WindowInfo> ScreenPanelGL::getWindowInfo()
wi.display_connection = pni->nativeResourceForWindow("display", handle);
wi.window_handle = pni->nativeResourceForWindow("surface", handle);
+ qApp->processEvents();
}
else
{
@@ -654,7 +653,7 @@ std::optional<WindowInfo> ScreenPanelGL::getWindowInfo()
wi.surface_width = static_cast<u32>(scaledWindowWidth());
wi.surface_height = static_cast<u32>(scaledWindowHeight());
- wi.surface_scale = static_cast<float>(devicePixelRatioFromScreen());
+ wi.surface_scale = static_cast<float>(devicePixelRatioFromWindow());
return wi;
}
diff --git a/src/frontend/qt_sdl/Screen.h b/src/frontend/qt_sdl/Screen.h
index b11df29b..79889a3f 100644
--- a/src/frontend/qt_sdl/Screen.h
+++ b/src/frontend/qt_sdl/Screen.h
@@ -23,6 +23,8 @@
#include "FrontendUtil.h"
#include "duckstation/gl/context.h"
+#include <optional>
+
#include <QWidget>
#include <QWindow>
#include <QMainWindow>
@@ -133,7 +135,7 @@ public:
void transferLayout();
protected:
- qreal devicePixelRatioFromScreen() const;
+ qreal devicePixelRatioFromWindow() const;
int scaledWindowWidth() const;
int scaledWindowHeight() const;
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