Misc (#19)

* get image returns optional<Mat> instead of unique_ptr<Mat> * introduce complexity * rename image load function * add example for a basic reader for binary image files * fix windows build? * add a status bar underneath the menu bar * use status bar in custom_0 example app * clang formats * packing w/ pragma push * add "Save As" functions to image views * resize over reserve * rm local override uri * add simple thread pool * rename to simple_thread_pool * get rid of useless renderlib * document version inc * extract hardcoded values to in-header * clang format patch * clone registered image in custom_0 * document binary-file header * minor fixes * clang format * rm unused render cmake
2026-01-23 23:00:35 +00:00
parent e3e161ce52
commit b37814204f
52 changed files with 712 additions and 207 deletions
@@ -0,0 +1,47 @@
+#include "simple_thread_pool.hpp"
+
+#include <functional>
+#include <mutex>
+
+using namespace pixelarium::utils;
+
+simple_thread_pool::simple_thread_pool(size_t num_threads)
+{
+    for (size_t i{0}; i < num_threads; ++i)
+    {
+        workers_.emplace_back(
+            [this]()
+            {
+                while (true)
+                {
+                    std::function<void()> job;
+                    {
+                        std::unique_lock<std::mutex> lck(thread_mutex_);
+
+                        cv_.wait(lck, [this]() -> bool { return shutdown_ || !task_queue_.empty(); });
+
+                        if (shutdown_ && task_queue_.empty()) return;
+
+                        job = std::move(task_queue_.front());
+                        task_queue_.pop();
+                    }
+
+                    job();
+                }
+            });
+    }
+}
+
+simple_thread_pool::~simple_thread_pool()
+{
+    {
+        std::unique_lock<std::mutex> lck(thread_mutex_);
+        shutdown_ = true;
+    }
+
+    cv_.notify_all();
+    for (auto& th : workers_)
+    {
+        th.join();
+    }
+}