1 files changed, 47 insertions, 0 deletions
diff --git a/opencl/source/OpenCLZone.cxx b/opencl/source/OpenCLZone.cxx
new file mode 100644
index 0000000000..1eaf3f43fc
--- /dev/null
+++ b/opencl/source/OpenCLZone.cxx
@@ -0,0 +1,47 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <opencl/openclwrapper.hxx>
+#include <opencl/OpenCLZone.hxx>
+#include <opencl_device.hxx>
+
+#include <memory>
+
+#include <officecfg/Office/Common.hxx>
+#include <com/sun/star/util/XFlushable.hpp>
+#include <com/sun/star/configuration/theDefaultProvider.hpp>
+
+/**
+ * Called from a signal handler if we get
+ * a crash or hang in some CL code.
+ */
+void OpenCLZone::hardDisable()
+{
+    // protect ourselves from double calling etc.
+    static bool bDisabled = false;
+    if (bDisabled)
+        return;
+
+    bDisabled = true;
+
+    std::shared_ptr<comphelper::ConfigurationChanges> xChanges(
+        comphelper::ConfigurationChanges::create());
+    officecfg::Office::Common::Misc::UseOpenCL::set(false, xChanges);
+    xChanges->commit();
+
+    // Force synchronous config write
+    auto xConfProvider
+        = css::configuration::theDefaultProvider::get(comphelper::getProcessComponentContext());
+    css::uno::Reference<css::util::XFlushable> xFlushable(xConfProvider, css::uno::UNO_QUERY_THROW);
+    xFlushable->flush();
+
+    releaseOpenCLEnv(&openclwrapper::gpuEnv);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */