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-rw-r--r--src/platformsupport/platformcompositor/qopenglcompositor.cpp2
-rw-r--r--src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp8
-rw-r--r--src/plugins/platforms/eglfs/qeglfsintegration.cpp5
-rw-r--r--src/plugins/platforms/eglfs/qeglfswindow.cpp8
4 files changed, 18 insertions, 5 deletions
diff --git a/src/platformsupport/platformcompositor/qopenglcompositor.cpp b/src/platformsupport/platformcompositor/qopenglcompositor.cpp
index 2e386532e2..7e0973040a 100644
--- a/src/platformsupport/platformcompositor/qopenglcompositor.cpp
+++ b/src/platformsupport/platformcompositor/qopenglcompositor.cpp
@@ -57,7 +57,7 @@ QT_BEGIN_NAMESPACE
It is up to the platform plugin to manage the lifetime of the
compositor (instance(), destroy()), set the correct destination
- context and window as early as possible (setTargetWindow()),
+ context and window as early as possible (setTarget()),
register the composited windows as they are shown, activated,
raised and lowered (addWindow(), moveToTop(), etc.), and to
schedule repaints (update()).
diff --git a/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp b/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp
index 07a1e77c3a..83b551557f 100644
--- a/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp
+++ b/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp
@@ -184,6 +184,8 @@ void QOpenGLCompositorBackingStore::flush(QWindow *window, const QRegion &region
QOpenGLCompositor *compositor = QOpenGLCompositor::instance();
QOpenGLContext *dstCtx = compositor->context();
+ Q_ASSERT(dstCtx);
+
QWindow *dstWin = compositor->targetWindow();
if (!dstWin)
return;
@@ -209,6 +211,12 @@ void QOpenGLCompositorBackingStore::composeAndFlush(QWindow *window, const QRegi
QOpenGLCompositor *compositor = QOpenGLCompositor::instance();
QOpenGLContext *dstCtx = compositor->context();
+ Q_ASSERT(dstCtx); // setTarget() must have been called before, e.g. from QEGLFSWindow
+
+ // The compositor's context and the context to which QOpenGLWidget/QQuickWidget
+ // textures belong are not the same. They share resources, though.
+ Q_ASSERT(context->shareGroup() == dstCtx->shareGroup());
+
QWindow *dstWin = compositor->targetWindow();
if (!dstWin)
return;
diff --git a/src/plugins/platforms/eglfs/qeglfsintegration.cpp b/src/plugins/platforms/eglfs/qeglfsintegration.cpp
index 2086ce56e2..35b27cba0b 100644
--- a/src/plugins/platforms/eglfs/qeglfsintegration.cpp
+++ b/src/plugins/platforms/eglfs/qeglfsintegration.cpp
@@ -188,11 +188,8 @@ QPlatformWindow *QEglFSIntegration::createPlatformWindow(QWindow *window) const
QPlatformOpenGLContext *QEglFSIntegration::createPlatformOpenGLContext(QOpenGLContext *context) const
{
- // If there is a "root" window into which raster and QOpenGLWidget content is
- // composited, all other contexts must share with its context.
- QOpenGLContext *compositingContext = QOpenGLCompositor::instance()->context();
EGLDisplay dpy = context->screen() ? static_cast<QEglFSScreen *>(context->screen()->handle())->display() : display();
- QPlatformOpenGLContext *share = compositingContext ? compositingContext->handle() : context->shareHandle();
+ QPlatformOpenGLContext *share = context->shareHandle();
QVariant nativeHandle = context->nativeHandle();
QEglFSContext *ctx;
diff --git a/src/plugins/platforms/eglfs/qeglfswindow.cpp b/src/plugins/platforms/eglfs/qeglfswindow.cpp
index 8301be8c17..84856831c3 100644
--- a/src/plugins/platforms/eglfs/qeglfswindow.cpp
+++ b/src/plugins/platforms/eglfs/qeglfswindow.cpp
@@ -138,6 +138,14 @@ void QEglFSWindow::create()
if (!context->create())
qFatal("EGLFS: Failed to create compositing context");
compositor->setTarget(context, window());
+ // If there is a "root" window into which raster and QOpenGLWidget content is
+ // composited, all other contexts must share with its context.
+ if (!qt_gl_global_share_context()) {
+ qt_gl_set_global_share_context(context);
+ // What we set up here is in effect equivalent to the application setting
+ // AA_ShareOpenGLContexts. Set the attribute to be fully consistent.
+ QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
+ }
}
}