mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.3 KiB
82 lines
2.3 KiB
3 years ago
|
#ifndef OPENCV_GAPI_PIPELINE_MODELING_TOOL_UTILS_HPP
|
||
|
#define OPENCV_GAPI_PIPELINE_MODELING_TOOL_UTILS_HPP
|
||
|
|
||
|
#include <opencv2/core.hpp>
|
||
|
|
||
|
#if defined(_WIN32)
|
||
|
#include <windows.h>
|
||
|
#endif
|
||
|
|
||
|
// FIXME: It's better to place it somewhere in common.hpp
|
||
|
struct OutputDescr {
|
||
|
std::vector<int> dims;
|
||
|
int precision;
|
||
|
};
|
||
|
|
||
|
namespace utils {
|
||
|
inline void generateRandom(cv::Mat& out) {
|
||
|
switch (out.depth()) {
|
||
|
case CV_8U:
|
||
|
cv::randu(out, 0, 255);
|
||
|
break;
|
||
|
case CV_32F:
|
||
|
cv::randu(out, 0.f, 1.f);
|
||
|
break;
|
||
|
case CV_16F: {
|
||
|
cv::Mat fp32_mat(out.size(), CV_MAKETYPE(CV_32F, out.channels()));
|
||
|
cv::randu(fp32_mat, 0.f, 1.f);
|
||
|
fp32_mat.convertTo(out, out.type());
|
||
|
break;
|
||
|
}
|
||
|
default:
|
||
|
throw std::logic_error("Unsupported preprocessing depth");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
inline void sleep(double ms) {
|
||
|
#if defined(_WIN32)
|
||
|
// NB: It takes portions of 100 nanoseconds.
|
||
|
int64_t ns_units = static_cast<int64_t>(ms * 1e4);
|
||
|
// FIXME: Wrap it to RAII and instance only once.
|
||
|
HANDLE timer = CreateWaitableTimer(NULL, true, NULL);
|
||
|
if (!timer) {
|
||
|
throw std::logic_error("Failed to create timer");
|
||
|
}
|
||
|
|
||
|
LARGE_INTEGER li;
|
||
|
li.QuadPart = -ns_units;
|
||
|
if(!SetWaitableTimer(timer, &li, 0, NULL, NULL, false)){
|
||
|
CloseHandle(timer);
|
||
|
throw std::logic_error("Failed to set timer");
|
||
|
}
|
||
|
if (WaitForSingleObject(timer, INFINITE) != WAIT_OBJECT_0) {
|
||
|
CloseHandle(timer);
|
||
|
throw std::logic_error("Failed to wait timer");
|
||
|
}
|
||
|
CloseHandle(timer);
|
||
|
#else
|
||
|
using namespace std::chrono;
|
||
|
std::this_thread::sleep_for(duration<double, std::milli>(ms));
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
template <typename duration_t>
|
||
|
typename duration_t::rep measure(std::function<void()> f) {
|
||
|
using namespace std::chrono;
|
||
|
auto start = high_resolution_clock::now();
|
||
|
f();
|
||
|
return duration_cast<duration_t>(
|
||
|
high_resolution_clock::now() - start).count();
|
||
|
}
|
||
|
|
||
|
template <typename duration_t>
|
||
|
typename duration_t::rep timestamp() {
|
||
|
using namespace std::chrono;
|
||
|
auto now = high_resolution_clock::now();
|
||
|
return duration_cast<duration_t>(now.time_since_epoch()).count();
|
||
|
}
|
||
|
|
||
|
} // namespace utils
|
||
|
|
||
|
#endif // OPENCV_GAPI_PIPELINE_MODELING_TOOL_UTILS_HPP
|