79 lines
2.5 KiB
Haxe
79 lines
2.5 KiB
Haxe
package funkin.backend.utils;
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import lime.app.Application;
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/**
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* Small util that allows you to load any function from ndlls via `getFunction`.
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*
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* NDLLs must be in your mod's "ndlls" folder, and must follow this name scheme:
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* - `name-windows.ndll` for Windows targeted ndlls
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* - `name-linux.ndll` for Linux targeted ndlls
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* - `name-mac.ndll` for Mac targeted ndlls
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*
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* If:
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* - The platform does not support NDLLs
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* - The NDLL is not found
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* - The Function cannot be found in the NDLL
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* then an empty function will be returned instead, and a message will be shown in logs.
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*/
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class NdllUtil {
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#if NDLLS_SUPPORTED
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#if windows public static final os:String = "windows"; #end
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#if linux public static final os:String = "linux"; #end
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#if macos public static final os:String = "mac"; #end
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#if android public static final os:String = "android"; #end
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#if ios public static final os:String = "ios"; #end
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#end
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/**
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* Returns an function from a Haxe NDLL.
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* Limited to 25 argument due to a limitation
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*
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* @param ndll Name of the NDLL.
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* @param name Name of the function.
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* @param args Number of arguments of that function.
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*/
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public static function getFunction(ndll:String, name:String, args:Int):Dynamic {
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#if NDLLS_SUPPORTED
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var func:Dynamic = getFunctionFromPath(Paths.ndll('$ndll-$os'), name, args);
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return Reflect.makeVarArgs(function(a:Array<Dynamic>) {
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// This generates horrific code
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return funkin.backend.system.macros.Utils.generateReflectionLike(25, "func", "a");
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//return Reflect.callMethod(null, func, a); // wouldnt work for some reason, maybe cause like c++ functions doesnt have reflection enabled
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});
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#else
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Logs.trace('NDLLs are not supported on this platform.', WARNING);
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return noop;
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#end
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}
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/**
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* Returns an function from a Haxe NDLL at specified path.
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*
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* @param ndll Asset path to the NDLL.
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* @param name Name of the function.
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* @param args Number of arguments of that function.
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*/
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public static function getFunctionFromPath(ndll:String, name:String, args:Int):Dynamic {
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#if NDLLS_SUPPORTED
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if (!Assets.exists(ndll)) {
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Logs.trace('Couldn\'t find ndll at ${ndll}.', WARNING);
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return noop;
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}
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var func = lime.system.CFFI.load(Assets.getPath(ndll), name, args);
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if (func == null) {
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Logs.trace('Method ${name} in ndll ${ndll} with ${args} args was not found.', ERROR);
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return noop;
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}
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return func;
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#else
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Logs.trace('NDLLs are not supported on this platform.', WARNING);
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#end
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return noop;
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}
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@:dox(hide) @:noCompletion static function noop() {}
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}
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