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/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */

#ifndef _OPENSLESPROVIDER_H_
#define _OPENSLESPROVIDER_H_

#include <SLES/OpenSLES.h>
#include <mozilla/Types.h>

#ifdef __cplusplus
extern "C" {
#endif
extern MOZ_EXPORT
SLresult mozilla_get_sles_engine(SLObjectItf * aObjectm,
                                 SLuint32 aOptionCount,
                                 const SLEngineOption *aOptions);
extern MOZ_EXPORT
void mozilla_destroy_sles_engine(SLObjectItf * aObjectm);
/* Realize is always in synchronous mode. */
extern MOZ_EXPORT
SLresult mozilla_realize_sles_engine(SLObjectItf aObjectm);
#ifdef __cplusplus
}
#endif

#ifdef __cplusplus
#include "mozilla/Mutex.h"

extern mozilla::LazyLogModule gOpenSLESProviderLog;

namespace mozilla {

class OpenSLESProvider {
public:
    static SLresult Get(SLObjectItf * aObjectm,
                   SLuint32 aOptionCount,
                   const SLEngineOption *aOptions);
    static void Destroy(SLObjectItf * aObjectm);
    static SLresult Realize(SLObjectItf aObjectm);
private:
    OpenSLESProvider();
    ~OpenSLESProvider();
    OpenSLESProvider(OpenSLESProvider const&); // NO IMPLEMENTATION
    void operator=(OpenSLESProvider const&);   // NO IMPLEMENTATION
    static OpenSLESProvider& getInstance();
    SLresult GetEngine(SLObjectItf * aObjectm,
                       SLuint32 aOptionCount,
                       const SLEngineOption *aOptions);
    SLresult ConstructEngine(SLObjectItf * aObjectm,
                             SLuint32 aOptionCount,
                             const SLEngineOption *aOptions);
    SLresult RealizeEngine(SLObjectItf aObjectm);
    void DestroyEngine(SLObjectItf * aObjectm);

    // Protect all our internal variables
    mozilla::Mutex mLock;
    SLObjectItf mSLEngine;
    int mSLEngineUsers;
    bool mIsRealized;
    void *mOpenSLESLib;
};

} //namespace
#endif // cplusplus

#endif /* _OPENSLESPROVIDER_H_ */