BaseINI: allow loading a specified base INI, eg for global configuration

Author: emoose

dlsstweaks.ini

@@ -164,3 +164,13 @@ DisableIniMonitoring = false
 ;  So in case game doesn't seem to apply DLSSPresets section for you at all, you can try seeing if OverrideAppId can still help
 ;  (in majority of cases this likely won't be needed however)
 OverrideAppId = false
+
+[DLSSTweaks]
+; BaseINI: if set, DLSSTweaks will try reading INI settings from the specified file path before processing any settings from this INI
+;  In effect this allows the use of a "global configuration" file, you can populate this central INI file with your desired settings, update all your game INI files to reference it, and any changes made to the central INI will then get applied to all your games
+;  (for best results it's recommended to comment/remove all settings from the game INI file except for BaseINI setting, then selectively add back settings you wish to override)
+;
+;  Notes:
+;  - ConfigTool likely won't work that well with game INIs which make use of BaseINI, but the tool should work fine on the actual BaseINI itself
+;  - INI monitoring during gameplay only monitors the main game INI, changes to BaseINI won't be detected, as a workaround you can make a small edit to the game INI for monitoring to notice & reload settings, which will then reload BaseINI too
+;BaseINI = C:\DLSS\DLSSTweaks.ini

src/DLSSTweaks.hpp

@@ -73,7 +73,7 @@ struct UserSettings
 	int dynamicResolutionMinOffset = -1;
 	bool disableIniMonitoring = false;
 
-	bool read(const std::filesystem::path& iniPath);
+	bool read(const std::filesystem::path& iniPath, int numInisRead = 0);
 	void print_to_log();
 };
 

src/DllMain.cpp

@@ -271,7 +271,7 @@ void UserSettings::print_to_log()
 	}
 }
 
-bool UserSettings::read(const std::filesystem::path& iniPath)
+bool UserSettings::read(const std::filesystem::path& iniPath, int numInisRead)
 {
 	using namespace utility;
 
@@ -285,6 +285,26 @@ bool UserSettings::read(const std::filesystem::path& iniPath)
 	inih::INIReader ini(iniFile);
 	fclose(iniFile);
 
+	// [DLSSTweaks]
+
+	// BaseINI: specifies an INI file which will be read in before the rest of the INI
+	// acting as a sort of global config file if the path has been set up
+	auto baseIni = utility::ini_get_string_safe(ini, "DLSSTweaks", "BaseINI", "");
+	if (!baseIni.empty())
+	{
+		// make sure we aren't trying to read in the current INI that we're reading...
+		if (std::filesystem::absolute(iniPath) != std::filesystem::absolute(baseIni))
+		{
+			if (numInisRead > 10)
+				spdlog::error("BaseINI: followed too many base INIs, might be caught in a loop, skipping further base INIs..");
+			else
+			{
+				if (read(baseIni, numInisRead + 1))
+					spdlog::info("Config read from {}", baseIni);
+			}
+		}
+	}
+
 	// [DLSS]
 	forceDLAA = ini.Get<bool>("DLSS", "ForceDLAA", std::move(forceDLAA));
 	overrideAutoExposure = ini.Get<int>("DLSS", "OverrideAutoExposure", std::move(overrideAutoExposure));

src/resource.h

@@ -16,7 +16,7 @@
 #define TWEAKS_VER_MAJOR 0
 #define TWEAKS_VER_MINOR 200
 #define TWEAKS_VER_BUILD 8
-#define TWEAKS_VER_REVISION 1
+#define TWEAKS_VER_REVISION 2
 
 #define STR(value) #value
 #define STRINGIZE(value) STR(value)