void TileWorker::run() {
setCurrentThreadPriority(WORKER_NICENESS);
StyleContext context;
while (true) {
std::shared_ptr<TileTask> task;
{
std::unique_lock<std::mutex> lock(m_mutex);
m_condition.wait(lock, [&, this]{
return !m_running || !m_queue.empty();
});
// Check if thread should stop
if (!m_running) {
break;
}
// Remove all canceled tasks
auto removes = std::remove_if(m_queue.begin(), m_queue.end(),
[](const auto& a) { return a->isCanceled(); });
m_queue.erase(removes, m_queue.end());
if (m_queue.empty()) {
continue;
}
// Pop highest priority tile from queue
auto it = std::min_element(m_queue.begin(), m_queue.end(),
[](const auto& a, const auto& b) {
if (a->isProxy() != b->isProxy()) {
return !a->isProxy();
}
if (a->source().id() == b->source().id() &&
a->sourceGeneration() != b->sourceGeneration()) {
return a->sourceGeneration() < b->sourceGeneration();
}
return a->getPriority() < b->getPriority();
});
task = std::move(*it);
m_queue.erase(it);
}
if (task->isCanceled()) { continue; }
// Save shared reference to Scene while building tile
// FIXME: Scene could be released on Worker-Thread and
// therefore call unsafe glDelete* functions...
auto scene = m_scene;
if (!scene) { continue; }
auto tileData = task->source().parse(*task, *scene->mapProjection());
// const clock_t begin = clock();
context.initFunctions(*scene);
if (tileData) {
auto tile = std::make_shared<Tile>(task->tileId(),
*scene->mapProjection(),
&task->source());
tile->build(context, *scene, *tileData, task->source());
// Mark task as ready
task->setTile(std::move(tile));
// float loadTime = (float(clock() - begin) / CLOCKS_PER_SEC) * 1000;
// LOG("loadTime %s - %f", task->tile()->getID().toString().c_str(), loadTime);
} else {
task->cancel();
}
m_pendingTiles = true;
requestRender();
}
}
void TileWorker::run() {
setCurrentThreadPriority(WORKER_NICENESS);
StyleContext context;
while (true) {
std::shared_ptr<TileTask> task;
{
std::unique_lock<std::mutex> lock(m_mutex);
m_condition.wait(lock, [&, this]{
return !m_running || !m_queue.empty();
});
// Check if thread should stop
if (!m_running) {
break;
}
// Remove all canceled tasks
auto removes = std::remove_if(m_queue.begin(), m_queue.end(),
[](const auto& a) { return a->tile->isCanceled(); });
m_queue.erase(removes, m_queue.end());
if (m_queue.empty()) {
continue;
}
// Pop highest priority tile from queue
auto it = std::min_element(m_queue.begin(), m_queue.end(),
[](const auto& a, const auto& b) {
if (a->tile->isVisible() != b->tile->isVisible()) {
return a->tile->isVisible();
}
return a->tile->getPriority() < b->tile->getPriority();
});
task = std::move(*it);
m_queue.erase(it);
}
if (task->tile->isCanceled()) {
continue;
}
auto tileData = task->process();
// NB: Save shared reference to Scene while building tile
auto scene = m_tileManager.getScene();
const clock_t begin = clock();
context.initFunctions(*scene);
if (tileData) {
task->tile->build(context, *scene, *tileData, *task->source);
float loadTime = (float(clock() - begin) / CLOCKS_PER_SEC) * 1000;
LOG("loadTime %s - %f", task->tile->getID().toString().c_str(), loadTime);
m_tileManager.tileProcessed(std::move(task));
}
requestRender();
}
}