1 files changed, 55 insertions, 0 deletions
diff --git a/intern/cycles/util/tbb.h b/intern/cycles/util/tbb.h
new file mode 100644
index 00000000000..6fc3b8daad3
--- /dev/null
+++ b/intern/cycles/util/tbb.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2011-2020 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __UTIL_TBB_H__
+#define __UTIL_TBB_H__
+
+/* TBB includes <windows.h>, do it ourselves first so we are sure
+ * WIN32_LEAN_AND_MEAN and similar are defined beforehand. */
+#include "util/windows.h"
+
+#include <tbb/enumerable_thread_specific.h>
+#include <tbb/parallel_for.h>
+#include <tbb/parallel_for_each.h>
+#include <tbb/task_arena.h>
+#include <tbb/task_group.h>
+
+#if TBB_INTERFACE_VERSION_MAJOR >= 10
+#  define WITH_TBB_GLOBAL_CONTROL
+#  include <tbb/global_control.h>
+#endif
+
+CCL_NAMESPACE_BEGIN
+
+using tbb::blocked_range;
+using tbb::enumerable_thread_specific;
+using tbb::parallel_for;
+
+static inline void parallel_for_cancel()
+{
+#if TBB_INTERFACE_VERSION_MAJOR >= 12
+  tbb::task_group_context *ctx = tbb::task::current_context();
+  if (ctx) {
+    ctx->cancel_group_execution();
+  }
+#else
+  tbb::task::self().cancel_group_execution();
+#endif
+}
+
+CCL_NAMESPACE_END
+
+#endif /* __UTIL_TBB_H__ */