1 /* Copyright (c) 2017, The Linux Foundation. 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 #define LOG_TAG "QCameraExtZoomTranslator" 31 32 #include <stdlib.h> 33 #include <utils/Errors.h> 34 #include "QCameraExtZoomTranslator.h" 35 #include <dlfcn.h> 36 37 extern "C" { 38 #include "mm_camera_dbg.h" 39 } 40 41 namespace qcamera { 42 43 /*=========================================================================== 44 * FUNCTION : QCameraExtZoomTranslator constructor 45 * 46 * DESCRIPTION: class constructor 47 * 48 * PARAMETERS : none 49 * 50 * RETURN : void 51 * 52 *==========================================================================*/ 53 QCameraExtZoomTranslator::QCameraExtZoomTranslator() 54 { 55 mLibHandle = NULL; 56 mInitSuccess = false; 57 memset(&mInitData, 0, sizeof(zoom_trans_init_data)); 58 } 59 60 /*=========================================================================== 61 * FUNCTION : QCameraExtZoomTranslator destructor 62 * 63 * DESCRIPTION: class destructor 64 * 65 * PARAMETERS : none 66 * 67 * RETURN : void 68 * 69 *==========================================================================*/ 70 QCameraExtZoomTranslator::~QCameraExtZoomTranslator() 71 { 72 // dlclose the lib here and not in deinit 73 } 74 75 76 /*=========================================================================== 77 * FUNCTION : create 78 * 79 * DESCRIPTION: This is a static method to create QCameraExtZoomTranslator object. 80 * It calls the private constructor of the class and only returns a 81 * valid object if the library loading succeeds. 82 * 83 * PARAMETERS : None 84 * 85 * RETURN : Valid object pointer if succeeds 86 * NULL if fails 87 * 88 *==========================================================================*/ 89 QCameraExtZoomTranslator* QCameraExtZoomTranslator::create() 90 { 91 QCameraExtZoomTranslator *pZoomTranslator = NULL; 92 93 // dlopen and dlsym here and if successful, create zoom translator object 94 // if (success) { 95 // pZoomTranslator = new QCameraExtZoomTranslator(); 96 // } 97 98 return pZoomTranslator; 99 } 100 101 102 /*=========================================================================== 103 * FUNCTION : init 104 * 105 * DESCRIPTION: This function passes the initialization data to the zoom 106 * translation library. 107 * 108 * 109 * PARAMETERS : 110 *@initData : Initialization data 111 * 112 * RETURN : 113 * NO_ERROR : Success 114 * INVALID_OPERATION : Failure 115 * 116 *==========================================================================*/ 117 int32_t QCameraExtZoomTranslator::init( 118 __unused zoom_trans_init_data initData) 119 { 120 int32_t rc = INVALID_OPERATION; 121 122 // Pass the initData to the zoom translation lib and if the operation succeeds, 123 // set rc to NO_ERROR. Set member variable mInitSuccess to true. 124 125 return rc; 126 } 127 128 129 /*=========================================================================== 130 * FUNCTION : getZoomValues 131 * 132 * DESCRIPTION: This function passes the user zoom to the zoom translation lib and 133 * gets back wide and tele zoom values corresponding to that user zoom. 134 * 135 * 136 * PARAMETERS : 137 *@userZoom : User zoom (zoom index into the zoom table) 138 *@wideZoom : Zoom for wide camera (zoom index into the zoom table) 139 *@teleZoom : Zoom for tele camera (zoom index into the zoom table) 140 * 141 * RETURN : 142 * NO_ERROR : Success 143 * INVALID_OPERATION : Failure 144 * 145 *==========================================================================*/ 146 int32_t QCameraExtZoomTranslator::getZoomValues( 147 __unused uint32_t userZoom, 148 __unused uint32_t *wideZoom, 149 __unused uint32_t *teleZoom) 150 { 151 int32_t rc = INVALID_OPERATION; 152 153 // Pass the userzoom to the zoom translation lib to return wideZoom and teleZoom values. 154 // If the operation succeeds, set rc to NO_ERROR. 155 156 return rc; 157 } 158 159 160 /*=========================================================================== 161 * FUNCTION : deInit 162 * 163 * DESCRIPTION: This function de-initializes zoom translation lib. 164 * 165 * 166 * PARAMETERS : None 167 * 168 * RETURN : 169 * NO_ERROR : Success 170 * INVALID_OPERATION : Failure 171 * 172 *==========================================================================*/ 173 int32_t QCameraExtZoomTranslator::deInit() 174 { 175 int32_t rc = INVALID_OPERATION; 176 177 if (mInitSuccess) { 178 // Deinit the zoom translation lib and if successful, set rc to NO_ERROR. 179 // Do not dlclose here. dlclose in the destructor 180 } 181 182 return rc; 183 } 184 185 186 /*=========================================================================== 187 * FUNCTION : isInitialized 188 * 189 * DESCRIPTION: Check if the zoom translator is initialized successfully 190 * 191 * 192 * PARAMETERS : None 193 * 194 * RETURN : 195 * true : Initialized successfully 196 * false : Not initialized 197 * 198 *==========================================================================*/ 199 bool QCameraExtZoomTranslator::isInitialized() 200 { 201 return mInitSuccess; 202 } 203 204 }; // namespace qcamera 205
