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      1 /*
      2  * Copyright (C) Texas Instruments - http://www.ti.com/
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 
     18 
     19 
     20 #ifndef CAMERA_PROPERTIES_H
     21 #define CAMERA_PROPERTIES_H
     22 
     23 #include <utils/KeyedVector.h>
     24 #include <utils/String8.h>
     25 #include <stdio.h>
     26 #include <dirent.h>
     27 #include <errno.h>
     28 #include <stdio.h>
     29 #include <string.h>
     30 #include <ctype.h>
     31 #include "cutils/properties.h"
     32 
     33 namespace android {
     34 
     35 #define MAX_CAMERAS_SUPPORTED 2
     36 #define MAX_SIMUL_CAMERAS_SUPPORTED 1
     37 #define MAX_PROP_NAME_LENGTH 50
     38 #define MAX_PROP_VALUE_LENGTH 2048
     39 
     40 #define EXIF_MAKE_DEFAULT "default_make"
     41 #define EXIF_MODEL_DEFAULT "default_model"
     42 
     43 // Class that handles the Camera Properties
     44 class CameraProperties
     45 {
     46 public:
     47     static const char INVALID[];
     48     static const char CAMERA_NAME[];
     49     static const char CAMERA_SENSOR_INDEX[];
     50     static const char ORIENTATION_INDEX[];
     51     static const char FACING_INDEX[];
     52     static const char S3D_SUPPORTED[];
     53     static const char SUPPORTED_PREVIEW_SIZES[];
     54     static const char SUPPORTED_PREVIEW_FORMATS[];
     55     static const char SUPPORTED_PREVIEW_FRAME_RATES[];
     56     static const char SUPPORTED_PICTURE_SIZES[];
     57     static const char SUPPORTED_PICTURE_FORMATS[];
     58     static const char SUPPORTED_THUMBNAIL_SIZES[];
     59     static const char SUPPORTED_WHITE_BALANCE[];
     60     static const char SUPPORTED_EFFECTS[];
     61     static const char SUPPORTED_ANTIBANDING[];
     62     static const char SUPPORTED_EXPOSURE_MODES[];
     63     static const char SUPPORTED_EV_MIN[];
     64     static const char SUPPORTED_EV_MAX[];
     65     static const char SUPPORTED_EV_STEP[];
     66     static const char SUPPORTED_ISO_VALUES[];
     67     static const char SUPPORTED_SCENE_MODES[];
     68     static const char SUPPORTED_FLASH_MODES[];
     69     static const char SUPPORTED_FOCUS_MODES[];
     70     static const char REQUIRED_PREVIEW_BUFS[];
     71     static const char REQUIRED_IMAGE_BUFS[];
     72     static const char SUPPORTED_ZOOM_RATIOS[];
     73     static const char SUPPORTED_ZOOM_STAGES[];
     74     static const char SUPPORTED_IPP_MODES[];
     75     static const char SMOOTH_ZOOM_SUPPORTED[];
     76     static const char ZOOM_SUPPORTED[];
     77     static const char PREVIEW_SIZE[];
     78     static const char PREVIEW_FORMAT[];
     79     static const char PREVIEW_FRAME_RATE[];
     80     static const char ZOOM[];
     81     static const char PICTURE_SIZE[];
     82     static const char PICTURE_FORMAT[];
     83     static const char JPEG_THUMBNAIL_SIZE[];
     84     static const char WHITEBALANCE[];
     85     static const char EFFECT[];
     86     static const char ANTIBANDING[];
     87     static const char EXPOSURE_MODE[];
     88     static const char EV_COMPENSATION[];
     89     static const char ISO_MODE[];
     90     static const char FOCUS_MODE[];
     91     static const char SCENE_MODE[];
     92     static const char FLASH_MODE[];
     93     static const char JPEG_QUALITY[];
     94     static const char BRIGHTNESS[];
     95     static const char SATURATION[];
     96     static const char SHARPNESS[];
     97     static const char CONTRAST[];
     98     static const char IPP[];
     99     static const char GBCE[];
    100     static const char AUTOCONVERGENCE[];
    101     static const char AUTOCONVERGENCE_MODE[];
    102     static const char MANUALCONVERGENCE_VALUES[];
    103     static const char SENSOR_ORIENTATION[];
    104     static const char SENSOR_ORIENTATION_VALUES[];
    105     static const char REVISION[];
    106     static const char FOCAL_LENGTH[];
    107     static const char HOR_ANGLE[];
    108     static const char VER_ANGLE[];
    109     static const char EXIF_MAKE[];
    110     static const char EXIF_MODEL[];
    111     static const char JPEG_THUMBNAIL_QUALITY[];
    112     static const char MAX_FOCUS_AREAS[];
    113     static const char MAX_FD_HW_FACES[];
    114     static const char MAX_FD_SW_FACES[];
    115 
    116     static const char PARAMS_DELIMITER [];
    117 
    118     static const char S3D2D_PREVIEW[];
    119     static const char S3D2D_PREVIEW_MODES[];
    120     static const char VSTAB[];
    121     static const char VSTAB_SUPPORTED[];
    122     static const char FRAMERATE_RANGE[];
    123     static const char FRAMERATE_RANGE_IMAGE[];
    124     static const char FRAMERATE_RANGE_VIDEO[];
    125     static const char FRAMERATE_RANGE_SUPPORTED[];
    126 
    127     static const char DEFAULT_VALUE[];
    128 
    129     static const char AUTO_EXPOSURE_LOCK[];
    130     static const char AUTO_EXPOSURE_LOCK_SUPPORTED[];
    131     static const char AUTO_WHITEBALANCE_LOCK[];
    132     static const char AUTO_WHITEBALANCE_LOCK_SUPPORTED[];
    133     static const char MAX_NUM_METERING_AREAS[];
    134     static const char METERING_AREAS[];
    135     static const char MAX_NUM_FOCUS_AREAS[];
    136 
    137     static const char VIDEO_SNAPSHOT_SUPPORTED[];
    138 
    139     static const char VIDEO_SIZE[];
    140     static const char SUPPORTED_VIDEO_SIZES[];
    141     static const char PREFERRED_PREVIEW_SIZE_FOR_VIDEO[];
    142 
    143     CameraProperties();
    144     ~CameraProperties();
    145 
    146     // container class passed around for accessing properties
    147     class Properties
    148     {
    149         public:
    150             Properties()
    151             {
    152                 mProperties = new DefaultKeyedVector<String8, String8>(String8(DEFAULT_VALUE));
    153                 char property[PROPERTY_VALUE_MAX];
    154                 property_get("ro.product.manufacturer", property, EXIF_MAKE_DEFAULT);
    155                 property[0] = toupper(property[0]);
    156                 set(EXIF_MAKE, property);
    157                 property_get("ro.product.model", property, EXIF_MODEL_DEFAULT);
    158                 property[0] = toupper(property[0]);
    159                 set(EXIF_MODEL, property);
    160             }
    161             ~Properties()
    162             {
    163                 delete mProperties;
    164             }
    165             ssize_t set(const char *prop, const char *value);
    166             ssize_t set(const char *prop, int value);
    167             const char* get(const char * prop);
    168             void dump();
    169 
    170         protected:
    171             const char* keyAt(unsigned int);
    172             const char* valueAt(unsigned int);
    173 
    174         private:
    175             DefaultKeyedVector<String8, String8>* mProperties;
    176 
    177     };
    178 
    179     ///Initializes the CameraProperties class
    180     status_t initialize();
    181     status_t loadProperties();
    182     int camerasSupported();
    183     int getProperties(int cameraIndex, Properties** properties);
    184 
    185 private:
    186 
    187     uint32_t mCamerasSupported;
    188     int mInitialized;
    189     mutable Mutex mLock;
    190 
    191     Properties mCameraProps[MAX_CAMERAS_SUPPORTED];
    192 
    193 };
    194 
    195 };
    196 
    197 #endif //CAMERA_PROPERTIES_H
    198 
    199