1 files changed, 64 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/include/jxl/resizable_parallel_runner_cxx.h b/third_party/jpeg-xl/lib/include/jxl/resizable_parallel_runner_cxx.h
new file mode 100644
index 0000000000..39bbbd283a
--- /dev/null
+++ b/third_party/jpeg-xl/lib/include/jxl/resizable_parallel_runner_cxx.h
@@ -0,0 +1,64 @@
+// Copyright (c) the JPEG XL Project Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/// @addtogroup libjxl_threads
+/// @{
+///
+/// @file resizable_parallel_runner_cxx.h
+/// @ingroup libjxl_threads
+/// @brief C++ header-only helper for @ref resizable_parallel_runner.h.
+///
+/// There's no binary library associated with the header since this is a header
+/// only library.
+
+#ifndef JXL_RESIZABLE_PARALLEL_RUNNER_CXX_H_
+#define JXL_RESIZABLE_PARALLEL_RUNNER_CXX_H_
+
+#include <jxl/resizable_parallel_runner.h>
+
+#include <memory>
+
+#if !(defined(__cplusplus) || defined(c_plusplus))
+#error \
+    "This a C++ only header. Use jxl/jxl_resizable_parallel_runner.h from C" \
+    "sources."
+#endif
+
+/// Struct to call JxlResizableParallelRunnerDestroy from the
+/// JxlResizableParallelRunnerPtr unique_ptr.
+struct JxlResizableParallelRunnerDestroyStruct {
+  /// Calls @ref JxlResizableParallelRunnerDestroy() on the passed runner.
+  void operator()(void* runner) { JxlResizableParallelRunnerDestroy(runner); }
+};
+
+/// std::unique_ptr<> type that calls JxlResizableParallelRunnerDestroy() when
+/// releasing the runner.
+///
+/// Use this helper type from C++ sources to ensure the runner is destroyed and
+/// their internal resources released.
+typedef std::unique_ptr<void, JxlResizableParallelRunnerDestroyStruct>
+    JxlResizableParallelRunnerPtr;
+
+/// Creates an instance of JxlResizableParallelRunner into a
+/// JxlResizableParallelRunnerPtr and initializes it.
+///
+/// This function returns a unique_ptr that will call
+/// JxlResizableParallelRunnerDestroy() when releasing the pointer. See @ref
+/// JxlResizableParallelRunnerCreate for details on the instance creation.
+///
+/// @param memory_manager custom allocator function. It may be NULL. The memory
+///        manager will be copied internally.
+/// @return a @c NULL JxlResizableParallelRunnerPtr if the instance can not be
+/// allocated or initialized
+/// @return initialized JxlResizableParallelRunnerPtr instance otherwise.
+static inline JxlResizableParallelRunnerPtr JxlResizableParallelRunnerMake(
+    const JxlMemoryManager* memory_manager) {
+  return JxlResizableParallelRunnerPtr(
+      JxlResizableParallelRunnerCreate(memory_manager));
+}
+
+#endif  // JXL_RESIZABLE_PARALLEL_RUNNER_CXX_H_
+
+/// @}