Update srutils

dicom/srutils.cpp

@@ -24,13 +24,12 @@
 #include <QPainterPath>
 #include <QPen>
 #include <QBrush>
+#include <QElapsedTimer>
 #include <QApplication>
 #include "processimagethreadLUT.hxx"
 #include "settingswidget.h"
 #include "findrefdialog.h"
 #include <itkExtractImageFilter.h>
-#include <chrono>
-#include <thread>
 #include "mmath.h"
 
 namespace
@@ -110,7 +109,11 @@ template<typename T> SRImage li3(
  }
  //
  std::vector<QThread*> threadsLUT_;
- const int num_threads = QThread::idealThreadCount();
+ int num_threads = QThread::idealThreadCount();
+ if (num_threads > 1)
+ {
+ --num_threads;
+ }
  const int tmp99 = size[1] % num_threads;
  const double center = ivariant->di->us_window_center;
  const double width = ivariant->di->us_window_width;
@@ -189,15 +192,28 @@ template<typename T> SRImage li3(
  }
  //
  const size_t threadsLUT_size = threadsLUT_.size();
- while (true)
  {
- std::this_thread::sleep_for(std::chrono::milliseconds(2));
- size_t b__{};
- for (size_t i = 0; i < threadsLUT_size; ++i)
+ QElapsedTimer etimer;
+ etimer.start();
+ while (true)
  {
- if (threadsLUT_.at(i)->isFinished()) ++b__;
+ if (etimer.elapsed() > 1)
+ {
+ size_t b__{};
+ for (size_t i = 0; i < threadsLUT_size; ++i)
+ {
+ if (threadsLUT_.at(i)->isFinished()) ++b__;
+ }
+ if (b__ == threadsLUT_size)
+ {
+ break;
+ }
+ else
+ {
+ etimer.start();
+ }
+ }
  }
- if (b__ == threadsLUT_size) break;
  }
  for (size_t i = 0; i < threadsLUT_size; ++i)
  {