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      1 /* Copyright (c) 2012-2013, The Linux Foundataion. All rights reserved.
      2  *
      3  * Redistribution and use in source and binary forms, with or without
      4  * modification, are permitted provided that the following conditions are
      5  * met:
      6  *     * Redistributions of source code must retain the above copyright
      7  *       notice, this list of conditions and the following disclaimer.
      8  *     * Redistributions in binary form must reproduce the above
      9  *       copyright notice, this list of conditions and the following
     10  *       disclaimer in the documentation and/or other materials provided
     11  *       with the distribution.
     12  *     * Neither the name of The Linux Foundation nor the names of its
     13  *       contributors may be used to endorse or promote products derived
     14  *       from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     23  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     25  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     26  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  *
     28  */
     29 
     30 #ifndef __QCAMERA_CHANNEL_H__
     31 #define __QCAMERA_CHANNEL_H__
     32 
     33 #include <hardware/camera.h>
     34 #include "QCameraStream.h"
     35 
     36 extern "C" {
     37 #include <mm_camera_interface.h>
     38 }
     39 
     40 namespace qcamera {
     41 
     42 class QCameraChannel
     43 {
     44 public:
     45     QCameraChannel(uint32_t cam_handle,
     46                    mm_camera_ops_t *cam_ops);
     47     QCameraChannel();
     48     virtual ~QCameraChannel();
     49     virtual int32_t init(mm_camera_channel_attr_t *attr,
     50                          mm_camera_buf_notify_t dataCB, // data CB for channel data
     51                          void *userData);
     52     // Owner of memory is transferred from the caller to the caller with this call.
     53     virtual int32_t addStream(QCameraAllocator& allocator,
     54                               QCameraHeapMemory *streamInfoBuf,
     55                               uint8_t minStreamBufnum,
     56                               cam_padding_info_t *paddingInfo,
     57                               stream_cb_routine stream_cb,
     58                               void *userdata);
     59     virtual int32_t start();
     60     virtual int32_t stop();
     61     virtual int32_t bufDone(mm_camera_super_buf_t *recvd_frame);
     62     virtual int32_t processZoomDone(preview_stream_ops_t *previewWindow,
     63                                     cam_crop_data_t &crop_info);
     64     QCameraStream *getStreamByHandle(uint32_t streamHandle);
     65     uint32_t getMyHandle() const {return m_handle;};
     66     uint8_t getNumOfStreams() const {return m_numStreams;};
     67     QCameraStream *getStreamByIndex(uint8_t index);
     68     QCameraStream *getStreamByServerID(uint32_t serverID);
     69 
     70 protected:
     71     uint32_t m_camHandle;
     72     mm_camera_ops_t *m_camOps;
     73     bool m_bIsActive;
     74 
     75     uint32_t m_handle;
     76     uint8_t m_numStreams;
     77     QCameraStream *mStreams[MAX_STREAM_NUM_IN_BUNDLE];
     78     mm_camera_buf_notify_t mDataCB;
     79     void *mUserData;
     80 };
     81 
     82 // burst pic channel: i.e. zsl burst mode
     83 class QCameraPicChannel : public QCameraChannel
     84 {
     85 public:
     86     QCameraPicChannel(uint32_t cam_handle,
     87                       mm_camera_ops_t *cam_ops);
     88     QCameraPicChannel();
     89     virtual ~QCameraPicChannel();
     90     int32_t takePicture(uint8_t num_of_snapshot);
     91     int32_t cancelPicture();
     92 };
     93 
     94 // video channel class
     95 class QCameraVideoChannel : public QCameraChannel
     96 {
     97 public:
     98     QCameraVideoChannel(uint32_t cam_handle,
     99                         mm_camera_ops_t *cam_ops);
    100     QCameraVideoChannel();
    101     virtual ~QCameraVideoChannel();
    102     int32_t releaseFrame(const void *opaque, bool isMetaData);
    103 };
    104 
    105 // reprocess channel class
    106 class QCameraReprocessChannel : public QCameraChannel
    107 {
    108 public:
    109     QCameraReprocessChannel(uint32_t cam_handle,
    110                             mm_camera_ops_t *cam_ops);
    111     QCameraReprocessChannel();
    112     virtual ~QCameraReprocessChannel();
    113     int32_t addReprocStreamsFromSource(QCameraAllocator& allocator,
    114                                        cam_pp_feature_config_t &config,
    115                                        QCameraChannel *pSrcChannel,
    116                                        uint8_t minStreamBufNum,
    117                                        cam_padding_info_t *paddingInfo);
    118     // online reprocess
    119     int32_t doReprocess(mm_camera_super_buf_t *frame);
    120     // offline reprocess
    121     int32_t doReprocess(int buf_fd, uint32_t buf_length, int32_t &ret_val);
    122 
    123 private:
    124     QCameraStream *getStreamBySrouceHandle(uint32_t srcHandle);
    125 
    126     uint32_t mSrcStreamHandles[MAX_STREAM_NUM_IN_BUNDLE];
    127     QCameraChannel *m_pSrcChannel; // ptr to source channel for reprocess
    128 };
    129 
    130 }; // namespace qcamera
    131 
    132 #endif /* __QCAMERA_CHANNEL_H__ */
    133