Intial somewhat working version

src/main.cpp

@@ -0,0 +1,84 @@
+#include "AppState.h"
+#include "AppConfig.h"
+#include "D3DProcessor.h"
+#include "DeckLinkPipeline.h"
+#include "ShaderLibrary.h"
+#include "WebServer.h"
+
+#include <combaseapi.h>
+
+#include <atomic>
+#include <chrono>
+#include <csignal>
+#include <iostream>
+#include <thread>
+
+namespace
+{
+std::atomic<bool> g_running = true;
+
+void signalHandler(int)
+{
+    g_running = false;
+}
+}
+
+int main()
+{
+    std::signal(SIGINT, signalHandler);
+    std::signal(SIGTERM, signalHandler);
+
+    HRESULT hr = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
+    if (FAILED(hr))
+    {
+        std::cerr << "CoInitializeEx failed: 0x" << std::hex << static_cast<unsigned long>(hr) << "\n";
+        return 1;
+    }
+
+    AppState appState;
+    D3DProcessor processor;
+
+    try
+    {
+        auto shaders = loadShaders(APP_SHADER_DIR);
+        appState.setShaders(shaders);
+        std::string error;
+        if (!processor.initialize(shaders.front(), error))
+        {
+            std::cerr << "Shader/D3D initialization failed:\n" << error << "\n";
+            CoUninitialize();
+            return 1;
+        }
+    }
+    catch (const std::exception& ex)
+    {
+        std::cerr << ex.what() << "\n";
+        CoUninitialize();
+        return 1;
+    }
+
+    DeckLinkPipeline pipeline(appState, processor);
+    std::string error;
+    if (!pipeline.initialize(error))
+    {
+        appState.setError(error);
+        std::cerr << error << "\n";
+    }
+
+    WebServer webServer(appState, pipeline, APP_CONTENT_DIR);
+    if (!webServer.start(8080, error))
+    {
+        std::cerr << error << "\n";
+        CoUninitialize();
+        return 1;
+    }
+
+    std::cout << "video-shader is running at http://127.0.0.1:8080\n";
+    while (g_running)
+        std::this_thread::sleep_for(std::chrono::milliseconds(200));
+
+    webServer.stop();
+    pipeline.stop();
+    CoUninitialize();
+    return 0;
+}