110 lines
3.7 KiB
Diff
110 lines
3.7 KiB
Diff
From b965ae977891221ad6b02d8994352b263e14d2ee Mon Sep 17 00:00:00 2001
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From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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Date: Tue, 8 Nov 2022 16:10:18 +0200
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Subject: [PATCH 48/57] Client: Ensure that wl_surface lives as long as qtquick
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render thread needs it
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wl_surface can be destroyed while qtquick render thread still uses it.
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That can end up in eglSwapBuffers() using defunct wl_surface, which will
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eventually lead to a crash due to the compositor posting an error.
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This is partially cherry-pick of dff579147b07cd15888a47c303e36684e9930f9f
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Change-Id: I044f40dd64e6672027a833379b57ccd9973d8305
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---
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src/client/qwaylandwindow.cpp | 13 ++++++++++++-
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src/client/qwaylandwindow_p.h | 3 +++
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.../client/wayland-egl/qwaylandglcontext.cpp | 6 +++++-
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3 files changed, 20 insertions(+), 2 deletions(-)
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diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
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index 771c96cc..5b97cd55 100644
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--- a/src/client/qwaylandwindow.cpp
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+++ b/src/client/qwaylandwindow.cpp
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@@ -76,6 +76,7 @@ QWaylandWindow *QWaylandWindow::mMouseGrab = nullptr;
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QWaylandWindow::QWaylandWindow(QWindow *window, QWaylandDisplay *display)
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: QPlatformWindow(window)
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, mDisplay(display)
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+ , mSurfaceLock(QReadWriteLock::Recursive)
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, mResizeAfterSwap(qEnvironmentVariableIsSet("QT_WAYLAND_RESIZE_AFTER_SWAP"))
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{
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{
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@@ -237,6 +238,16 @@ bool QWaylandWindow::shouldCreateSubSurface() const
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return QPlatformWindow::parent() != nullptr;
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}
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+void QWaylandWindow::beginFrame()
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+{
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+ mSurfaceLock.lockForRead();
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+}
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+
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+void QWaylandWindow::endFrame()
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+{
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+ mSurfaceLock.unlock();
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+}
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+
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void QWaylandWindow::reset()
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{
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closeChildPopups();
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@@ -245,10 +256,10 @@ void QWaylandWindow::reset()
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delete mSubSurfaceWindow;
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mSubSurfaceWindow = nullptr;
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- invalidateSurface();
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if (mSurface) {
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emit wlSurfaceDestroyed();
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QWriteLocker lock(&mSurfaceLock);
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+ invalidateSurface();
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mSurface.reset();
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}
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diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
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index ea3d1995..e18609d9 100644
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--- a/src/client/qwaylandwindow_p.h
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+++ b/src/client/qwaylandwindow_p.h
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@@ -207,6 +207,9 @@ public:
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void handleUpdate();
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void deliverUpdateRequest() override;
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+ void beginFrame();
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+ void endFrame();
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+
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void addChildPopup(QWaylandWindow* child);
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void removeChildPopup(QWaylandWindow* child);
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void closeChildPopups();
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diff --git a/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp b/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
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index c1f45fa6..5d6fb2bf 100644
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--- a/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
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+++ b/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
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@@ -432,8 +432,10 @@ bool QWaylandGLContext::makeCurrent(QPlatformSurface *surface)
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return true;
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}
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- if (window->isExposed())
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+ if (window->isExposed()) {
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+ window->beginFrame();
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window->setCanResize(false);
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+ }
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if (m_decorationsContext != EGL_NO_CONTEXT && !window->decoration())
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window->createDecoration();
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@@ -449,6 +451,7 @@ bool QWaylandGLContext::makeCurrent(QPlatformSurface *surface)
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if (!eglMakeCurrent(m_eglDisplay, eglSurface, eglSurface, m_context)) {
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qWarning("QWaylandGLContext::makeCurrent: eglError: %x, this: %p \n", eglGetError(), this);
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window->setCanResize(true);
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+ window->endFrame();
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return false;
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}
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@@ -502,6 +505,7 @@ void QWaylandGLContext::swapBuffers(QPlatformSurface *surface)
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eglSwapBuffers(m_eglDisplay, eglSurface);
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window->setCanResize(true);
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+ window->endFrame();
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}
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GLuint QWaylandGLContext::defaultFramebufferObject(QPlatformSurface *surface) const
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--
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2.39.0
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