1 files changed, 64 insertions, 0 deletions
diff --git a/src/compositor/hardware_integration/qwltextureorphanage_p.h b/src/compositor/hardware_integration/qwltextureorphanage_p.h
new file mode 100644
index 000000000..f040ec750
--- /dev/null
+++ b/src/compositor/hardware_integration/qwltextureorphanage_p.h
@@ -0,0 +1,64 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#ifndef QWLTEXTUREORPHANAGE_P_H
+#define QWLTEXTUREORPHANAGE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QObject>
+#include <QMutex>
+#include <QLoggingCategory>
+#include <QtWaylandCompositor/qtwaylandcompositorglobal.h>
+
+QT_BEGIN_NAMESPACE
+
+class QOpenGLContext;
+class QOpenGLTexture;
+
+Q_DECLARE_LOGGING_CATEGORY(qLcWTO)
+
+namespace QtWayland {
+
+class Q_WAYLANDCOMPOSITOR_EXPORT QWaylandTextureOrphanage : public QObject
+{
+    Q_OBJECT
+
+public:
+    QWaylandTextureOrphanage(){};
+    ~QWaylandTextureOrphanage();
+
+    static QWaylandTextureOrphanage *instance();
+
+    // texture that isn't needed anymore will be "take care of" (killed) appropriately
+    void admitTexture(QOpenGLTexture *tex, QOpenGLContext *ctx);
+
+    // uses QOpenGLContext::currentContext to call deleteTexturesByContext on all shared ctx
+    void deleteTextures();
+
+public Q_SLOTS:
+    // uses sender() to call deleteTexturesByContext
+    void onContextAboutToBeDestroyed(QOpenGLContext *ctx);
+
+private:
+    void deleteTexturesByContext(QOpenGLContext *ctx);
+
+    // tracks all the orphanes that need to be deleted
+    QMultiHash<QOpenGLContext *, QOpenGLTexture *> m_orphanedTextures;
+
+    QMutex m_containerLock;
+};
+
+} // namespace QtWayland
+
+QT_END_NAMESPACE
+#endif