dynamically unload layer and remove excess logging

VkLayer_LS_frame_generation.json

@@ -11,9 +11,6 @@
       "vkGetInstanceProcAddr": "layer_vkGetInstanceProcAddr",
       "vkGetDeviceProcAddr": "layer_vkGetDeviceProcAddr"
     },
-    "enable_environment": {
-      "ENABLE_LSFG": "1"
-    },
     "disable_environment": {
       "DISABLE_LSFG": "1"
     }

include/config/config.hpp

@@ -28,6 +28,9 @@ namespace Config {
         std::shared_ptr<std::atomic_bool> valid;
     };
 
+    /// Active configuration. Must be set in main.cpp.
+    extern Configuration activeConf;
+
     ///
     /// Load the config file and create a file watcher.
     ///

src/config/config.cpp

@@ -33,6 +33,8 @@ namespace {
     std::optional<std::unordered_map<std::string, Configuration>> gameConfs;
 }
 
+Configuration Config::activeConf{};
+
 bool Config::loadAndWatchConfig(const std::string& file) {
     if (!std::filesystem::exists(file))
         return false;

src/main.cpp

@@ -73,9 +73,8 @@ namespace {
         }
 
         const std::string name = getProcessName();
-        Config::Configuration conf{};
         try {
-            conf = Config::getConfig(name);
+            Config::activeConf = Config::getConfig(name);
         } catch (const std::exception& e) {
             std::cerr << "lsfg-vk: The configuration for " << name << " is invalid, exiting.\n";
             std::cerr << e.what() << '\n';
@@ -83,6 +82,7 @@ namespace {
         }
 
         // exit silently if not enabled
+        auto& conf = Config::activeConf;
         if (!conf.enable)
             return;