RenderCommandQueue.h

#pragma once
#include <vector>
#include <mutex>
#include <functional>
 
struct RenderCommandQueue {
    std::vector<std::function<void()>> commands;
    std::mutex mutex;
    std::condition_variable cv;
    bool isReady = false;
 
    void Submit(std::function<void()> cmd) {
        std::lock_guard<std::mutex> lock(mutex);
        commands.push_back(std::move(cmd));
        isReady = true;
    }
 
    void Execute() {
        std::lock_guard<std::mutex> lock(mutex);
        for (auto& cmd : commands) cmd();
        commands.clear();
        cv.notify_all();
        isReady = false;
    }
 
    void Wait() {
        std::unique_lock<std::mutex> lock(mutex);
        cv.wait(lock, [this]() {
            return commands.empty();
            });
    }
};