402 lines
14 KiB
C++
402 lines
14 KiB
C++
/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#define ATRACE_TAG ATRACE_TAG_CAMERA
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#define LOG_TAG "QCamera3CropRegionMapper"
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#include <cmath>
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// Camera dependencies
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#include "QCamera3CropRegionMapper.h"
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#include "QCamera3HWI.h"
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extern "C" {
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#include "mm_camera_dbg.h"
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}
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using namespace android;
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namespace qcamera {
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/*===========================================================================
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* FUNCTION : QCamera3CropRegionMapper
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*
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* DESCRIPTION: Constructor
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*
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* PARAMETERS : None
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*
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* RETURN : None
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*==========================================================================*/
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QCamera3CropRegionMapper::QCamera3CropRegionMapper()
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: mSensorW(0),
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mSensorH(0),
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mActiveArrayW(0),
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mActiveArrayH(0)
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{
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}
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/*===========================================================================
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* FUNCTION : ~QCamera3CropRegionMapper
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*
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* DESCRIPTION: destructor
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*
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* PARAMETERS : none
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*
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* RETURN : none
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*==========================================================================*/
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QCamera3CropRegionMapper::~QCamera3CropRegionMapper()
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{
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}
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/*===========================================================================
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* FUNCTION : update
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*
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* DESCRIPTION: update sensor active array size and sensor output size
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*
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* PARAMETERS :
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* @active_array_w : active array width
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* @active_array_h : active array height
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* @sensor_w : sensor output width
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* @sensor_h : sensor output height
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::update(uint32_t active_array_w,
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uint32_t active_array_h, uint32_t sensor_w,
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uint32_t sensor_h)
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{
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// Sanity check
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if (active_array_w == 0 || active_array_h == 0 ||
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sensor_w == 0 || sensor_h == 0) {
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LOGE("active_array size and sensor output size must be non zero");
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return;
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}
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if (active_array_w < sensor_w || active_array_h < sensor_h) {
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LOGE("invalid input: active_array [%d, %d], sensor size [%d, %d]",
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active_array_w, active_array_h, sensor_w, sensor_h);
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return;
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}
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mSensorW = sensor_w;
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mSensorH = sensor_h;
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mActiveArrayW = active_array_w;
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mActiveArrayH = active_array_h;
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LOGH("active_array: %d x %d, sensor size %d x %d",
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mActiveArrayW, mActiveArrayH, mSensorW, mSensorH);
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}
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/*===========================================================================
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* FUNCTION : toActiveArray
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*
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* DESCRIPTION: Map crop rectangle from sensor output space to active array space
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*
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* PARAMETERS :
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* @crop_left : x coordinate of top left corner of rectangle
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* @crop_top : y coordinate of top left corner of rectangle
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* @crop_width : width of rectangle
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* @crop_height : height of rectangle
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* @zoom_ratio : zoom ratio to be reverted for the input rectangles
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::toActiveArray(int32_t& crop_left, int32_t& crop_top,
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int32_t& crop_width, int32_t& crop_height, float zoom_ratio)
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{
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if (mSensorW == 0 || mSensorH == 0 ||
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mActiveArrayW == 0 || mActiveArrayH == 0) {
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LOGE("sensor/active array sizes are not initialized!");
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return;
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}
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if (zoom_ratio < MIN_ZOOM_RATIO) {
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LOGE("Invalid zoom ratio %f", zoom_ratio);
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return;
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}
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// Map back to activeArray space
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float left = crop_left * mActiveArrayW / mSensorW;
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float top = crop_top * mActiveArrayH / mSensorH;
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float width = crop_width * mActiveArrayW / mSensorW;
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float height = crop_height * mActiveArrayH / mSensorH;
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// Revert zoom_ratio, so that now the crop rectangle is separate from
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// zoom_ratio. The coordinate is within the active array space which covers
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// the post-zoom FOV.
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left = left * zoom_ratio - (zoom_ratio - 1) * 0.5f * mActiveArrayW;
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top = top * zoom_ratio - (zoom_ratio - 1) * 0.5f * mActiveArrayH;
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width = width * zoom_ratio;
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height = height * zoom_ratio;
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crop_left = std::round(left);
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crop_top = std::round(top);
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crop_width = std::round(width);
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crop_height = std::round(height);
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boundToSize(crop_left, crop_top, crop_width, crop_height,
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mActiveArrayW, mActiveArrayH);
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}
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/*===========================================================================
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* FUNCTION : toSensor
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*
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* DESCRIPTION: Map crop rectangle from active array space to sensor output space
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*
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* PARAMETERS :
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* @crop_left : x coordinate of top left corner of rectangle
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* @crop_top : y coordinate of top left corner of rectangle
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* @crop_width : width of rectangle
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* @crop_height : height of rectangle
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* @zoom_ratio : zoom ratio to be applied to the input rectangles
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::toSensor(int32_t& crop_left, int32_t& crop_top,
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int32_t& crop_width, int32_t& crop_height, float zoom_ratio)
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{
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if (mSensorW == 0 || mSensorH == 0 ||
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mActiveArrayW == 0 || mActiveArrayH == 0) {
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LOGE("sensor/active array sizes are not initialized!");
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return;
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}
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applyZoomRatioHelper(crop_left, crop_top, crop_width, crop_height, zoom_ratio,
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true /*to_sensor*/);
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}
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/*===========================================================================
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* FUNCTION : applyZoomRatioHelper
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*
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* DESCRIPTION: Apply zoom ratio to the crop region, and optionally map
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* to sensor coordinate system
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*
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* PARAMETERS :
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* @crop_left : x coordinate of top left corner of rectangle
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* @crop_top : y coordinate of top left corner of rectangle
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* @crop_width : width of rectangle
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* @crop_height : height of rectangle
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* @zoom_ratio : zoom ratio to be applied to the input rectangles
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* @to_sensor : whether the crop region is to be mapped to sensor coordinate
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* system
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::applyZoomRatioHelper(int32_t& crop_left, int32_t& crop_top,
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int32_t& crop_width, int32_t& crop_height, float zoom_ratio, bool to_sensor)
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{
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if (zoom_ratio < MIN_ZOOM_RATIO) {
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LOGE("Invalid zoom ratio %f", zoom_ratio);
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return;
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}
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// Apply zoom_ratio to the input rectangle in activeArray space, so that
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// crop rectangle already takes zoom_ratio into account (in other words,
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// coordinate within the sensor native active array space).
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float left = crop_left / zoom_ratio +
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0.5f * mActiveArrayW * (1.0f - 1.0f / zoom_ratio);
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float top = crop_top / zoom_ratio +
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0.5f * mActiveArrayH * (1.0f - 1.0f / zoom_ratio);
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float width = crop_width / zoom_ratio;
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float height = crop_height / zoom_ratio;
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if (to_sensor) {
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// Map to sensor space.
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left = left * mSensorW / mActiveArrayW;
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top = top * mSensorH / mActiveArrayH;
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width = width * mSensorW / mActiveArrayW;
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height = height * mSensorH / mActiveArrayH;
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}
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crop_left = std::round(left);
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crop_top = std::round(top);
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crop_width = std::round(width);
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crop_height = std::round(height);
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LOGD("before bounding left %d, top %d, width %d, height %d",
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crop_left, crop_top, crop_width, crop_height);
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boundToSize(crop_left, crop_top, crop_width, crop_height,
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to_sensor ? mSensorW : mActiveArrayW,
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to_sensor ? mSensorH : mActiveArrayH);
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LOGD("after bounding left %d, top %d, width %d, height %d",
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crop_left, crop_top, crop_width, crop_height);
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}
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/*===========================================================================
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* FUNCTION : applyZoomRatio
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*
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* DESCRIPTION: Apply zoom ratio to the crop region
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*
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* PARAMETERS :
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* @crop_left : x coordinate of top left corner of rectangle
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* @crop_top : y coordinate of top left corner of rectangle
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* @crop_width : width of rectangle
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* @crop_height : height of rectangle
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* @zoom_ratio : zoom ratio to be applied to the input rectangles
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::applyZoomRatio(int32_t& crop_left, int32_t& crop_top,
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int32_t& crop_width, int32_t& crop_height, float zoom_ratio)
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{
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if (mActiveArrayW == 0 || mActiveArrayH == 0) {
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LOGE("active array sizes are not initialized!");
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return;
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}
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applyZoomRatioHelper(crop_left, crop_top, crop_width, crop_height, zoom_ratio,
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false /*to_sensor*/);
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}
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/*===========================================================================
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* FUNCTION : boundToSize
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*
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* DESCRIPTION: Bound a particular rectangle inside a bounding box
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*
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* PARAMETERS :
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* @left : x coordinate of top left corner of rectangle
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* @top : y coordinate of top left corner of rectangle
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* @width : width of rectangle
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* @height : height of rectangle
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* @bound_w : width of bounding box
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* @bound_y : height of bounding box
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::boundToSize(int32_t& left, int32_t& top,
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int32_t& width, int32_t& height, int32_t bound_w, int32_t bound_h)
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{
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if (left < 0) {
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left = 0;
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}
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if (left >= bound_w) {
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left = bound_w - 1;
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}
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if (top < 0) {
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top = 0;
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}
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if (top >= bound_h) {
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top = bound_h - 1;
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}
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if ((left + width) > bound_w) {
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width = bound_w - left;
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}
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if ((top + height) > bound_h) {
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height = bound_h - top;
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}
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}
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/*===========================================================================
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* FUNCTION : toActiveArray
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*
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* DESCRIPTION: Map co-ordinate from sensor output space to active array space
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*
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* PARAMETERS :
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* @x : x coordinate
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* @y : y coordinate
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* @zoom_ratio : zoom ratio to be applied to the input coordinates
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::toActiveArray(uint32_t& x, uint32_t& y, float zoom_ratio)
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{
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if (mSensorW == 0 || mSensorH == 0 ||
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mActiveArrayW == 0 || mActiveArrayH == 0) {
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LOGE("sensor/active array sizes are not initialized!");
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return;
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}
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if ((x > static_cast<uint32_t>(mSensorW)) ||
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(y > static_cast<uint32_t>(mSensorH))) {
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LOGE("invalid co-ordinate (%d, %d) in (0, 0, %d, %d) space",
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x, y, mSensorW, mSensorH);
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return;
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}
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if (zoom_ratio < MIN_ZOOM_RATIO) {
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LOGE("Invalid zoom ratio %f", zoom_ratio);
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return;
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}
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// Map back to activeArray space
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x = x * mActiveArrayW / mSensorW;
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y = y * mActiveArrayH / mSensorH;
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// Revert zoom_ratio, so that now the crop rectangle is separate from
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// zoom_ratio. The coordinate is within the active array space which covers
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// the post-zoom FOV.
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x = x * zoom_ratio - (zoom_ratio - 1) * 0.5f * mActiveArrayW;
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y = y * zoom_ratio - (zoom_ratio - 1) * 0.5f * mActiveArrayH;
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}
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/*===========================================================================
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* FUNCTION : toSensor
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*
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* DESCRIPTION: Map co-ordinate from active array space to sensor output space
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*
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* PARAMETERS :
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* @x : x coordinate
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* @y : y coordinate
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* @zoom_ratio : zoom ratio to be applied to the input coordinates
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*
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* RETURN : none
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*==========================================================================*/
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void QCamera3CropRegionMapper::toSensor(uint32_t& x, uint32_t& y, float zoom_ratio)
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{
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if (mSensorW == 0 || mSensorH == 0 ||
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mActiveArrayW == 0 || mActiveArrayH == 0) {
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LOGE("sensor/active array sizes are not initialized!");
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return;
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}
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if ((x > static_cast<uint32_t>(mActiveArrayW)) ||
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(y > static_cast<uint32_t>(mActiveArrayH))) {
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LOGE("invalid co-ordinate (%d, %d) in (0, 0, %d, %d) space",
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x, y, mSensorW, mSensorH);
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return;
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}
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if (zoom_ratio < MIN_ZOOM_RATIO) {
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LOGE("Invalid zoom ratio %f", zoom_ratio);
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return;
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}
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// Apply zoom_ratio to the input coordinate in activeArray space, so that
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// coordinate already takes zoom_ratio into account (in other words,
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// coordinate within the sensor native active array space).
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x = x / zoom_ratio +
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0.5f * mActiveArrayW * (1.0f - 1.0f / zoom_ratio);
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y = y / zoom_ratio +
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0.5f * mActiveArrayH * (1.0f - 1.0f / zoom_ratio);
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// Map to sensor space.
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x = x * mSensorW / mActiveArrayW;
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y = y * mSensorH / mActiveArrayH;
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}
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}; //end namespace android
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