void SurfaceExtraction::process() {
if (!meshes_) {
meshes_ = std::make_shared<std::vector<std::shared_ptr<Mesh>>>();
outport_.setData(meshes_);
}
auto data = volume_.getSourceVectorData();
auto changed = volume_.getChangedOutports();
result_.resize(data.size());
meshes_->resize(data.size());
for (size_t i = 0; i < data.size(); ++i) {
auto vol = data[i].second;
switch (method_.get()) {
case TETRA: {
if (util::is_future_ready(result_[i].result)) {
(*meshes_)[i] = std::move(result_[i].result.get());
result_[i].status = 1.0f;
dirty_ = false;
}
float iso = isoValue_.get();
vec4 color = static_cast<FloatVec4Property*>(colors_[i])->get();
if (!result_[i].result.valid() &&
(util::contains(changed, data[i].first) || !result_[i].isSame(iso, color))) {
result_[i].set(
iso, color, 0.0f,
dispatchPool([this, vol, iso, color, i]() -> std::shared_ptr<Mesh> {
auto m =
MarchingTetrahedron::apply(vol, iso, color, [this, i](float s) {
this->result_[i].status = s;
float status = 0;
for (const auto& e : this->result_) status += e.status;
status /= result_.size();
dispatchFront([status](ProgressBar& pb) {
pb.updateProgress(status);
if (status < 1.0f)
pb.show();
else
pb.hide();
}, std::ref(this->getProgressBar()));
});
dispatchFront([this]() {
dirty_ = true;
invalidate(InvalidationLevel::InvalidOutput);
});
return m;
}));
}
break;
}
default:
break;
}
}
}
std::unique_ptr<Canvas> CanvasGLFW::createHiddenCanvas() {
auto res = dispatchFront([&]() {
auto canvas = util::make_unique<CanvasGLFW>(windowTitle_, screenDimensions_);
return std::move(canvas);
});
return res.get();
}
std::unique_ptr<Canvas> CanvasQt::create() {
auto thread = QThread::currentThread();
auto res = dispatchFront([&thread]() {
auto canvas = util::make_unique<HiddenCanvasQt>();
#if (QT_VERSION >= QT_VERSION_CHECK(5, 2, 0))
canvas->context()->moveToThread(thread);
#endif
return canvas;
});
return res.get();
}
void Delay::delay() {
auto deadline = std::chrono::steady_clock::now() + interval_;
std::unique_lock<std::mutex> lock{mutex_};
while (enabled_) {
if (cvar_.wait_until(lock, deadline) == std::cv_status::timeout) {
lock.unlock();
auto tmp = callback_;
dispatchFront([tmp]() { (*tmp)(); });
lock.lock();
enabled_ = false;
}
}
}
void Timer::timer() {
auto deadline = std::chrono::steady_clock::now() + interval_;
std::unique_lock<std::mutex> lock{callback_->mutex};
while (callback_->enabled) {
if (callback_->cvar.wait_until(lock, deadline) == std::cv_status::timeout) {
lock.unlock();
// skip if previous not done.
if (!result_.valid() ||
result_.wait_for(std::chrono::duration<int, std::milli>(0)) ==
std::future_status::ready) {
auto tmp = callback_;
result_ = dispatchFront([tmp]() {
std::unique_lock<std::mutex> l(tmp->mutex, std::try_to_lock);
if (l && tmp->enabled) (tmp->callback)();
}
);
}
deadline += interval_;
lock.lock();
}
}
}