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/*
* Copyright (C) 2019 DENSO TEN Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "camera.h"
#include "capturing.h"
#include <QDebug>
CameraItem::CameraItem(QQuickItem *parent)
: QQuickPaintedItem(parent), _device(-1), _offset(0)
{
}
CameraItem::~CameraItem()
{
if(_device != -1) {
p_cap_item->close_device();
}
if(p_cap_item)
delete p_cap_item;
}
int CameraItem::init(int device, int offset)
{
p_cap_item = new CapturingItem();
int ret = p_cap_item->open_device(device);
if(ret != 0) {
qDebug() << "device " << device << " failed to open";
return -1;
}
ret = p_cap_item->init_device();
if(ret != 0) {
qDebug() << "device " << device << " failed to initialize";
return -1;
}
p_cap_item->start_capturing();
_device = device;
_offset = offset;
return ret;
}
void CameraItem::paint(QPainter *painter)
{
if(_device != -1){
unsigned char* data = NULL;
cv::Mat src(p_cap_item->height(), p_cap_item->width(), CV_8UC4);
cv::Mat dst;
data = p_cap_item->snap_frame();
if(data) {
memcpy(src.data, data, src.step * src.rows);
cv::cvtColor(src, dst, CV_BGRA2RGB);
QImage output_img(dst.data, dst.cols, dst.rows, QImage::Format_RGB888);
output_img = output_img.scaled(1080, 911);
painter->drawImage(0,0,
output_img,
0,((output_img.size().height() / 2) - (height() / 2) + _offset));
}
else {
qDebug() << "null image";
}
}
}
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