// 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_cpp

/// @{

///

/// @file decode_cxx.h

/// @brief C++ header-only helper for @ref decode.h.

///

/// There's no binary library associated with the header since this is a header

/// only library.

#ifndef JXL_DECODE_CXX_H_

#define JXL_DECODE_CXX_H_

#include <jxl/decode.h>

#include <jxl/memory_manager.h>

#include <memory>

#ifndef __cplusplus

#error "This a C++ only header. Use jxl/decode.h from C sources."

#endif

/// Struct to call JxlDecoderDestroy from the JxlDecoderPtr unique_ptr.

struct JxlDecoderDestroyStruct {

  /// Calls @ref JxlDecoderDestroy() on the passed decoder.

  void operator()(JxlDecoder* decoder) { JxlDecoderDestroy(decoder); }

};

/// std::unique_ptr<> type that calls JxlDecoderDestroy() when releasing the

/// decoder.

///

/// Use this helper type from C++ sources to ensure the decoder is destroyed and

/// their internal resources released.

typedef std::unique_ptr<JxlDecoder, JxlDecoderDestroyStruct> JxlDecoderPtr;

/// Creates an instance of JxlDecoder into a JxlDecoderPtr and initializes it.

///

/// This function returns a unique_ptr that will call JxlDecoderDestroy() when

/// releasing the pointer. See @ref JxlDecoderCreate 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 JxlDecoderPtr if the instance can not be allocated or

///         initialized

/// @return initialized JxlDecoderPtr instance otherwise.

static inline JxlDecoderPtr JxlDecoderMake(

    const JxlMemoryManager* memory_manager) {

  return JxlDecoderPtr(JxlDecoderCreate(memory_manager));

}

djxl_fuzzer.cc:JxlDecoderMake(JxlMemoryManagerStruct const*)

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    const JxlMemoryManager* memory_manager) {

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  return JxlDecoderPtr(JxlDecoderCreate(memory_manager));

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}

Unexecuted instantiation: streaming_fuzzer.cc:JxlDecoderMake(JxlMemoryManagerStruct const*)

#endif  // JXL_DECODE_CXX_H_

/// @}