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#ifndef __QCAMERA3_STREAMMEM_H__
#define __QCAMERA3_STREAMMEM_H__

// System dependencies
#include <utils/Mutex.h>

// Camera dependencies
#include "QCamera3Mem.h"

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

using namespace android;

namespace qcamera {

class QCamera3StreamMem {
public:
    QCamera3StreamMem(uint32_t maxHeapBuffer, bool queueAll = true);
    virtual ~QCamera3StreamMem();

    uint32_t getCnt();
    int getRegFlags(uint8_t *regFlags);

    // Helper function to access individual QCamera3Buffer object
    int getFd(uint32_t index);
    ssize_t getSize(uint32_t index);
    int invalidateCache(uint32_t index);
    int cleanInvalidateCache(uint32_t index);
    int32_t getBufDef(const cam_frame_len_offset_t &offset,
            mm_camera_buf_def_t &bufDef, uint32_t index);
    void *getPtr(uint32_t index);

    bool valid(uint32_t index);

    // Gralloc buffer related functions
    int registerBuffer(buffer_handle_t *buffer, cam_stream_type_t type);
    int unregisterBuffer(uint32_t index);
    int getMatchBufIndex(void *object);
    void *getBufferHandle(uint32_t index);
    void unregisterBuffers(); //TODO: relace with unififed clear() function?

    // Heap buffer related functions
    int allocateAll(size_t size);
    int allocateOne(size_t size);
    void deallocate(); //TODO: replace with unified clear() function?

    // Clear function: unregister for gralloc buffer, and deallocate for heap buffer
    void clear() {unregisterBuffers(); deallocate(); }

    // Frame number getter and setter
    int32_t markFrameNumber(uint32_t index, uint32_t frameNumber);
    int32_t getFrameNumber(uint32_t index);
    int32_t getOldestFrameNumber(uint32_t &index);
    int32_t getGrallocBufferIndex(uint32_t frameNumber);
    int32_t getHeapBufferIndex(uint32_t frameNumber);
    int32_t getBufferIndex(uint32_t frameNumber);

private:
    //variables
    QCamera3HeapMemory mHeapMem;
    QCamera3GrallocMemory mGrallocMem;
    uint32_t mMaxHeapBuffers;
    Mutex mLock;
    bool mQueueHeapBuffers;
};

};
#endif // __QCAMERA3_STREAMMEM_H__