From 33e2d239d0e473a585243de9d9db36e49edf184b Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 29 Nov 2021 01:02:54 +0200
Subject: [PATCH] Apply implicit conversions to function arguments

---
 source/glsl/resolve.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/source/glsl/resolve.cpp b/source/glsl/resolve.cpp
index 3aeab30b..fbe60d79 100644
--- a/source/glsl/resolve.cpp
+++ b/source/glsl/resolve.cpp
@@ -1084,7 +1084,24 @@ void ExpressionResolver::visit(FunctionCall &call)
 	TraversingVisitor::visit(call);
 
 	if(call.declaration)
+	{
+		for(unsigned i=0; i<call.arguments.size(); ++i)
+		{
+			TypeDeclaration *arg_type = call.arguments[i]->type;
+			TypeDeclaration *param_type = call.declaration->parameters[i]->type_declaration;
+			BasicTypeDeclaration *arg_basic = dynamic_cast<BasicTypeDeclaration *>(arg_type);
+			BasicTypeDeclaration *param_basic = dynamic_cast<BasicTypeDeclaration *>(param_type);
+			if(arg_basic && param_basic)
+			{
+				Compatibility compat = get_compatibility(*param_basic, *arg_basic);
+				if(compat==RIGHT_CONVERTIBLE)
+					convert_to(call.arguments[i], *param_basic);
+			}
+			else if(!arg_type || !param_type || arg_type!=param_type)
+				return;
+		}
 		resolve(call, call.declaration->return_type_declaration, false);
+	}
 	else if(call.constructor)
 		visit_constructor(call);
 }
-- 
2.43.0