/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
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 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
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 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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 */

#ifndef __QCAMERA_ALLOCATOR__
#define __QCAMERA_ALLOCATOR__

extern "C" {
#include "mm_camera_interface.h"
}

namespace qcamera {

class QCameraMemory;
class QCameraHeapMemory;

typedef struct {
    int32_t (*bgFunction) (void *);
    void* bgArgs;
} BackgroundTask;

class QCameraAllocator {
public:
    virtual QCameraMemory *allocateStreamBuf(cam_stream_type_t stream_type,
            size_t size, int stride, int scanline, uint8_t &bufferCnt) = 0;
    virtual int32_t allocateMoreStreamBuf(QCameraMemory *mem_obj,
            size_t size, uint8_t &bufferCnt) = 0;
    virtual QCameraHeapMemory *allocateStreamInfoBuf(
            cam_stream_type_t stream_type, uint8_t bufCount = 1,
            uint32_t cam_type = MM_CAMERA_TYPE_MAIN) = 0;
    virtual QCameraHeapMemory *allocateMiscBuf(cam_stream_info_t *streamInfo) = 0;
    virtual QCameraMemory *allocateStreamUserBuf(cam_stream_info_t *streamInfo) = 0;
    virtual void waitForDeferredAlloc(cam_stream_type_t stream_type) = 0;
    virtual uint32_t scheduleBackgroundTask(BackgroundTask* bgTask) = 0;
    virtual int32_t waitForBackgroundTask(uint32_t &taskId) = 0;
    virtual ~QCameraAllocator() {}
};

}; /* namespace qcamera */
#endif /* __QCAMERA_ALLOCATOR__ */