Renderer: properly destroy pending renderqueue

On shutdown it may happen that we have a renderqueue that we haven't rendered
because the surface was destroyed prior to it being completed. If that's the
case we properly destroy it.

Change-Id: I945213abdae7809a9973a03dddae57e3377dfee0
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/render/backend/renderer.cpp b/src/render/backend/renderer.cpp
index eb65984c9..66efb6dcb 100644
--- a/src/render/backend/renderer.cpp
+++ b/src/render/backend/renderer.cpp
@@ -290,6 +290,12 @@ void Renderer::shutdown()
 {
     qCDebug(Backend) << Q_FUNC_INFO << "Requesting renderer shutdown";
     m_running.store(0);
+
+    // We delete any renderqueue that we may not have had time to render
+    // before the surface was destroyed
+    qDeleteAll(m_renderQueue->nextFrameQueue());
+    m_renderQueue->reset();
+
     if (!m_renderThread) {
         releaseGraphicsResources();
     } else {