xref: /device/lge/hammerhead/camera/QCamera2/HAL3/QCamera3Channel.h

/* Copyright (c) 2012-2013, The Linux Foundataion. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *       with the distribution.
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 *       from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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#ifndef __QCAMERA3_CHANNEL_H__
#define __QCAMERA3_CHANNEL_H__

#include <hardware/camera3.h>
#include "QCamera3Stream.h"
#include "QCamera3Mem.h"

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

using namespace android;

namespace qcamera {

typedef void (*channel_cb_routine)(mm_camera_buf_def_t *frame,
                                camera3_stream_buffer_t *buffer, void *userdata);

class QCamera3Channel
{
public:
    QCamera3Channel(uint32_t cam_handle,
                   mm_camera_ops_t *cam_ops,
                   channel_cb_routine cb_routine);
    QCamera3Channel();
    virtual ~QCamera3Channel();

    int32_t addStream(cam_stream_type_t streamType,
                              cam_format_t streamFormat,
                              cam_dimension_t streamDim,
                              uint8_t minStreamBufnum,
                              cam_padding_info_t *paddingInfo);
    int32_t start();
    int32_t stop();
    int32_t bufDone(mm_camera_super_buf_t *recvd_frame);

    virtual int32_t registerBuffers(uint32_t num_buffers,
                        buffer_handle_t **buffers) = 0;
    virtual int32_t request(const camera3_stream_buffer_t *buffer) = 0;
    virtual void streamCbRoutine(mm_camera_super_buf_t *super_frame,
                            QCamera3Stream *stream) = 0;

    virtual QCamera3Memory *getStreamBufs(uint32_t len) = 0;
    virtual void putStreamBufs() = 0;

    QCamera3Stream *getStreamByHandle(uint32_t streamHandle);
    uint32_t getMyHandle() const {return m_handle;};
    uint8_t getNumOfStreams() const {return m_numStreams;};
    QCamera3Stream *getStreamByIndex(uint8_t index);

    static void streamCbRoutine(mm_camera_super_buf_t *super_frame,
                QCamera3Stream *stream, void *userdata);
protected:

    virtual int32_t init(mm_camera_channel_attr_t *attr,
                         mm_camera_buf_notify_t dataCB, // data CB for channel data
                         cam_padding_info_t *paddingInfo,
                         void *userData);
    int32_t allocateStreamInfoBuf(camera3_stream_t *stream);

    uint32_t m_camHandle;
    mm_camera_ops_t *m_camOps;
    bool m_bIsActive;

    uint32_t m_handle;
    uint8_t m_numStreams;
    QCamera3Stream *mStreams[MAX_STREAM_NUM_IN_BUNDLE];
    mm_camera_buf_notify_t mDataCB;
    void *mUserData;

    QCamera3HeapMemory *mStreamInfoBuf;
    channel_cb_routine mChannelCB;
    cam_padding_info_t *mPaddingInfo;
};

/* QCamera3RegularChannel is used to handle all streams that are directly
 * generated by hardware and given to frameworks without any postprocessing at HAL.
 * Examples are: all IMPLEMENTATION_DEFINED streams, CPU_READ streams. */
class QCamera3RegularChannel : public QCamera3Channel
{
public:
    QCamera3RegularChannel(uint32_t cam_handle,
                    mm_camera_ops_t *cam_ops,
                    channel_cb_routine cb_routine,
                    camera3_stream_t *stream);
    virtual ~QCamera3RegularChannel();

    virtual int32_t request(const camera3_stream_buffer_t *buffer);
    virtual int32_t registerBuffers(uint32_t num_buffers,
                                buffer_handle_t **buffers);
    virtual void streamCbRoutine(mm_camera_super_buf_t *super_frame,
                                            QCamera3Stream *stream);

    virtual QCamera3Memory *getStreamBufs(uint32_t le);
    virtual void putStreamBufs();

public:
    static int kMaxBuffers;
private:
    camera3_stream_t *mCamera3Stream;
    uint32_t mNumBufs;
    buffer_handle_t **mCamera3Buffers;

    QCamera3GrallocMemory *mMemory;
};

/* QCamera3MetadataChannel is for metadata stream generated by camera daemon. */
class QCamera3MetadataChannel : public QCamera3Channel
{
public:
    QCamera3MetadataChannel(uint32_t cam_handle,
                    mm_camera_ops_t *cam_ops,
                    channel_cb_routine cb_routine);
    virtual ~QCamera3MetadataChannel();

    int32_t initialize();

    virtual int32_t request(const camera3_stream_buffer_t *buffer);
    virtual int32_t registerBuffers(uint32_t num_buffers,
                buffer_handle_t **buffers);
    virtual void streamCbRoutine(mm_camera_super_buf_t *super_frame,
                            QCamera3Stream *stream);

    virtual QCamera3Memory *getStreamBufs(uint32_t le);
    virtual void putStreamBufs();

private:
    QCamera3HeapMemory *mMemory;
    bool mStarted;
};

/* QCamera3PicChannel is for JPEG stream, which contains a YUV stream generated
 * by the hardware, and encoded to a JPEG stream */
class QCamera3PicChannel : public QCamera3Channel
{
public:
    QCamera3PicChannel(uint32_t cam_handle,
                    mm_camera_ops_t *cam_ops,
                    channel_cb_routine cb_routine,
                    camera3_stream_t *stream);
    ~QCamera3PicChannel();

    virtual int32_t request(const camera3_stream_buffer_t *buffer);
    virtual int32_t registerBuffers(uint32_t num_buffers,
                        buffer_handle_t **buffers);
    virtual void streamCbRoutine(mm_camera_super_buf_t *super_frame,
                            QCamera3Stream *stream);

    virtual QCamera3Memory *getStreamBufs(uint32_t le);
    virtual void putStreamBufs();

public:
    static int kMaxBuffers;
private:
    camera3_stream_t *mCamera3Stream;
    uint32_t mNumBufs;
    camera3_stream_buffer_set_t *mCamera3Buffers;

    QCamera3GrallocMemory *mJpegMemory;
    QCamera3HeapMemory *mYuvMemory;
};

}; // namespace qcamera

#endif /* __QCAMERA_CHANNEL_H__ */