1 /* Copyright (c) 2015-2016, 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 #ifndef __QCAMERA3CROPREGIONMAPPER_H__ 31 #define __QCAMERA3CROPREGIONMAPPER_H__ 32 33 // System dependencies 34 #include <utils/Errors.h> 35 36 using namespace android; 37 38 namespace qcamera { 39 40 class QCamera3CropRegionMapper { 41 public: 42 QCamera3CropRegionMapper(); 43 virtual ~QCamera3CropRegionMapper(); 44 45 void update(uint32_t active_array_w, uint32_t active_array_h, 46 uint32_t sensor_w, uint32_t sensor_h); 47 void toActiveArray(int32_t& crop_left, int32_t& crop_top, 48 int32_t& crop_width, int32_t& crop_height, float zoom_ratio); 49 void toSensor(int32_t& crop_left, int32_t& crop_top, 50 int32_t& crop_width, int32_t& crop_height, float zoom_ratio); 51 void toActiveArray(uint32_t& x, uint32_t& y, float zoom_ratio); 52 void toSensor(uint32_t& x, uint32_t& y, float zoom_ratio); 53 54 // Adjust the crop rectangle to reflect zoom_ratio. For example, if 55 // zoom_ratio is 2.0, and crop region is active array size, this function 56 // will scale the crop region to be 2x zoomed. 57 void applyZoomRatio(int32_t& crop_left, int32_t& crop_top, 58 int32_t& crop_width, int32_t& crop_height, float zoom_ratio); 59 60 private: 61 /* sensor output size */ 62 int32_t mSensorW, mSensorH; 63 int32_t mActiveArrayW, mActiveArrayH; 64 65 void boundToSize(int32_t& left, int32_t& top, int32_t& width, 66 int32_t& height, int32_t bound_w, int32_t bound_h); 67 68 static constexpr float MIN_ZOOM_RATIO = 0.0001f; 69 void applyZoomRatioHelper(int32_t& crop_left, int32_t& crop_top, 70 int32_t& crop_width, int32_t& crop_height, float zoom_ratio, 71 bool to_sensor); 72 }; 73 74 }; // namespace qcamera 75 76 #endif /* __QCAMERA3CROPREGIONMAPPER_H__ */ 77