93 lines
2.3 KiB
Diff
93 lines
2.3 KiB
Diff
From db7ed40e1e0c566d4c6bed53c283327c9d55ce4c Mon Sep 17 00:00:00 2001
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From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
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Date: Thu, 20 Aug 2020 11:58:45 -0300
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Subject: [PATCH 20/20] UI: Check for Expose and PlatformSurface events to
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create display
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This is a workaround for QWaylandWindow never becoming exposed, or
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receiving the QEvent::Expose [1].
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[1] https://bugreports.qt.io/browse/QTBUG-86176
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---
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UI/qt-display.cpp | 58 +++++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 58 insertions(+)
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diff --git a/UI/qt-display.cpp b/UI/qt-display.cpp
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index b230ab4e..4487d460 100644
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--- a/UI/qt-display.cpp
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+++ b/UI/qt-display.cpp
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@@ -10,6 +10,58 @@
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#ifdef ENABLE_WAYLAND
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#include <obs-nix-platform.h>
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+
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+class SurfaceEventFilter : public QObject {
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+ OBSQTDisplay *display;
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+ int mTimerId;
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+
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+public:
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+ SurfaceEventFilter(OBSQTDisplay *src) : display(src), mTimerId(0) {}
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+
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+protected:
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+ bool eventFilter(QObject *obj, QEvent *event) override
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+ {
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+ bool result = QObject::eventFilter(obj, event);
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+ QPlatformSurfaceEvent *surfaceEvent;
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+
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+ switch (event->type()) {
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+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 1)
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+ case QEvent::PlatformSurface:
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+ surfaceEvent =
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+ static_cast<QPlatformSurfaceEvent *>(event);
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+ if (surfaceEvent->surfaceEventType() !=
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+ QPlatformSurfaceEvent::SurfaceCreated)
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+ return result;
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+
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+ if (display->windowHandle()->isExposed())
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+ createOBSDisplay();
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+ else
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+ mTimerId = startTimer(67); // Arbitrary
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+ break;
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+#endif
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+ case QEvent::Expose:
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+ createOBSDisplay();
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+ break;
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+ default:
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+ break;
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+ }
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+
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+ return result;
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+ }
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+
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+ void timerEvent(QTimerEvent *) { createOBSDisplay(true); }
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+
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+private:
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+ void createOBSDisplay(bool force = false)
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+ {
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+ display->CreateDisplay(force);
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+ if (mTimerId > 0) {
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+ killTimer(mTimerId);
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+ mTimerId = 0;
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+ }
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+ }
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+};
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+
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#endif
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static inline long long color_to_int(const QColor &color)
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@@ -65,6 +117,12 @@ OBSQTDisplay::OBSQTDisplay(QWidget *parent, Qt::WindowFlags flags)
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connect(windowHandle(), &QWindow::visibleChanged, windowVisible);
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connect(windowHandle(), &QWindow::screenChanged, screenChanged);
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+
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+#ifdef ENABLE_WAYLAND
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+ if (obs_get_nix_platform() == OBS_NIX_PLATFORM_WAYLAND)
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+ windowHandle()->installEventFilter(
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+ new SurfaceEventFilter(this));
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+#endif
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}
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QColor OBSQTDisplay::GetDisplayBackgroundColor() const
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--
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2.28.0
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