/*

 * Copyright (c) 2022 Huawei Device Co., Ltd.

 * 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 ALSA_SND_RENDER_H

#define ALSA_SND_RENDER_H



#include "alsa_soundcard.h"



#ifdef __cplusplus

extern "C" {

#endif



typedef void* RenderPriData;



struct AlsaRender {

    struct AlsaSoundCard soundCard;

    enum AudioPortPin descPins;

    bool muteState;

    bool periodEvent; /* produce poll event after each period */

    snd_pcm_sframes_t bufferSize;

    snd_pcm_sframes_t periodSize;

    unsigned int bufferTime;    /* (0.5s): ring buffer length in us */

    unsigned int periodTime;    /* (0.1s): period time in us */

    int resample;

    RenderPriData priData;



    /* render scene */

    int32_t (*Init)(struct AlsaRender*);

    int32_t (*SelectScene)(struct AlsaRender *, enum AudioPortPin, const struct PathDeviceInfo *);

    int32_t (*Open)(struct AlsaRender *);

    int32_t (*Start)(struct AlsaRender *);

    int32_t (*Stop)(struct AlsaRender *);

    int32_t (*Close)(struct AlsaRender *);

    int32_t (*Write)(struct AlsaRender *, const struct AudioHwRenderParam *);

    int32_t (*GetMmapPosition)(struct AlsaRender *);

    int32_t (*MmapWrite)(struct AlsaRender *, const struct AudioHwRenderParam *);



    /* volume operation */

    int32_t (*GetVolThreshold)(struct AlsaRender *, long *, long *);

    int32_t (*GetVolume)(struct AlsaRender *, long *);

    int32_t (*SetVolume)(struct AlsaRender *, long);



    /* gain operation */

    int32_t (*GetGainThreshold)(struct AlsaRender *, float *, float *);

    int32_t (*GetGain)(struct AlsaRender *, float *);

    int32_t (*SetGain)(struct AlsaRender *, float);



    /* mute operation */

    bool  (*GetMute)(struct AlsaRender *);

    int32_t (*SetMute)(struct AlsaRender *, bool);



    /* channel mode operation */

    int32_t (*GetChannelMode)(struct AlsaRender *, enum AudioChannelMode *);

    int32_t (*SetChannelMode)(struct AlsaRender *, enum AudioChannelMode);



    /* set pause or resume state */

    int32_t (*SetPauseState)(struct AlsaRender *, bool);

};



struct AlsaRender *RenderCreateInstance(const char* adapterName);

struct AlsaRender *RenderGetInstance(const char *adapterName);

int32_t RenderSetParams(struct AlsaRender *renderIns, const struct AudioHwRenderParam *handleData);

void  RenderSetPriData(struct AlsaRender *renderIns, RenderPriData data);

RenderPriData RenderGetPriData(struct AlsaRender *renderIns);



/*

    Different platforms implement this function rewriting render implementation

 */

int32_t RenderOverrideFunc(struct AlsaRender *renderIns);



#ifdef __cplusplus

}

#endif



#endif /* ALSA_SND_RENDER_H */