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/*
* Copyright (c) 2017-2018 Wei Shuai <cpuwolf@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*/
#include "wii_frame.hpp"
#include "compat/math.hpp"
#include <cstring>
#include <tuple>
#include <opencv2/imgproc.hpp>
using namespace pt_module;
WIIPreview& WIIPreview::operator=(const pt_frame& frame_)
{
const struct wii_info& wii = frame_.as_const<WIIFrame>()->wii;
const cv::Mat& frame = frame_.as_const<const WIIFrame>()->mat;
ensure_size(frame_copy, frame_out.cols, frame_out.rows, CV_8UC3);
status = wii.status;
if (frame.channels() != 3)
{
once_only(qDebug() << "tracker/pt: camera frame depth: 3 !=" << frame.channels());
return *this;
}
const bool need_resize = frame.cols != frame_out.cols || frame.rows != frame_out.rows;
if (need_resize)
cv::resize(frame, frame_copy, cv::Size(frame_out.cols, frame_out.rows), 0, 0, cv::INTER_NEAREST);
else
frame.copyTo(frame_copy);
return *this;
}
WIIPreview::WIIPreview(int w, int h)
{
ensure_size(frame_out, w, h, CV_8UC4);
frame_out.setTo(cv::Scalar(0, 0, 0, 0));
}
QImage WIIPreview::get_bitmap()
{
switch (status) {
case wii_cam_wait_for_dongle:
return QImage(":/Resources/usb.png");
case wii_cam_wait_for_sync:
return QImage(":/Resources/sync.png");
case wii_cam_wait_for_connect:
return QImage(":/Resources/on.png");
}
int stride = frame_out.step.p[0];
if (stride < 64 || stride < frame_out.cols * 4)
{
once_only(qDebug() << "bad stride" << stride
<< "for bitmap size" << frame_copy.cols << frame_copy.rows);
return QImage();
}
cv::cvtColor(frame_copy, frame_out, cv::COLOR_BGR2BGRA);
return QImage((const unsigned char*) frame_out.data,
frame_out.cols, frame_out.rows,
stride,
QImage::Format_ARGB32);
}
void WIIPreview::draw_head_center(double x, double y)
{
double px_, py_;
std::tie(px_, py_) = to_pixel_pos(x, y, frame_copy.cols, frame_copy.rows);
int px = iround(px_), py = iround(py_);
constexpr int len = 9;
static const cv::Scalar color(0, 255, 255);
cv::line(frame_copy,
cv::Point(px - len, py),
cv::Point(px + len, py),
color, 1);
cv::line(frame_copy,
cv::Point(px, py - len),
cv::Point(px, py + len),
color, 1);
}
void WIIPreview::ensure_size(cv::Mat& frame, int w, int h, int type)
{
if (frame.cols != w || frame.rows != h)
frame = cv::Mat(h, w, type);
}
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