Pass main function name in MSLConfiguration

spirv_msl.cpp

@@ -54,6 +54,10 @@ string CompilerMSL::compile(MSLConfiguration &msl_cfg, vector<MSLVertexAttr> *p_
 	// Remember the input parameters
 	msl_config = msl_cfg;
 
+	// Set main function name if it was explicitly set
+	if (!msl_config.entry_point_name.empty())
+		set_name(entry_point, msl_config.entry_point_name);
+
 	vtx_attrs_by_location.clear();
 	if (p_vtx_attrs)
 		for (auto &va : *p_vtx_attrs)
@@ -1270,13 +1274,6 @@ string CompilerMSL::clean_func_name(string func_name)
 	return (iter != func_name_overrides.end()) ? iter->second : func_name;
 }
 
-void CompilerMSL::set_entry_point_name(string func_name)
-{
-	if (func_name.find("main") == std::string::npos)
-		func_name += "_main";
-	meta.at(entry_point).decoration.alias = func_name;
-}
-
 // Returns a string containing a comma-delimited list of args for the entry point function
 string CompilerMSL::entry_point_args(bool append_comma)
 {

spirv_msl.hpp

@@ -29,10 +29,10 @@ namespace spirv_cross
 // Options for compiling to Metal Shading Language
 struct MSLConfiguration
 {
-	uint32_t vtx_attr_stage_in_binding = 0;
 	bool flip_vert_y = false;
 	bool flip_frag_y = false;
 	bool is_rendering_points = false;
+	std::string entry_point_name;
 };
 
 // Defines MSL characteristics of a vertex attribute at a particular location.
@@ -93,8 +93,6 @@ public:
 	// Compiles the SPIR-V code into Metal Shading Language using default configuration parameters.
 	std::string compile() override;
 
-	void set_entry_point_name(std::string func_name);
-
 protected:
 	void emit_instruction(const Instruction &instr) override;
 	void emit_glsl_op(uint32_t result_type, uint32_t result_id, uint32_t op, const uint32_t *args,