Fixes problem with the puredata templates for objects with no mem var…

…iables

src/generators/templates/pd.ml

@@ -146,6 +146,54 @@ let tildePerformFunctionVector (config:configuration) : int * Pla.t =
    (* we return the number of buffers used *)
    count + 1, decl
 
+
+let getInitDefaultCalls module_name params =
+   if params.config.pass_data then
+      [%pla{|<#module_name#s>_process_type|}],
+      [%pla{|<#module_name#s>_default(x->data);|}],
+      [%pla{|<#module_name#s>_process_init(x->data);|}]
+   else
+      Pla.string "float", Pla.unit, Pla.unit
+
+let noteFunctions (params:params) =
+   let output = params.output in
+   let module_name = params.module_name in
+   let on_args =
+      ["(int)note"; "(int)velocity"; "(int)channel"]
+      |> (fun a -> if params.config.pass_data then "x->data"::a else a)
+      |> Pla.map_sep Pla.comma Pla.string
+   in
+   let off_args =
+      ["(int)note"; "(int)channel"]
+      |> (fun a -> if params.config.pass_data then "x->data"::a else a)
+      |> Pla.map_sep Pla.comma Pla.string
+   in
+   [%pla{|
+void <#output#s>_noteOn(t_<#output#s>_tilde *x, t_floatarg note, t_floatarg velocity, t_floatarg channel){
+   if((int)velocity) <#module_name#s>_noteOn(<#on_args#>);
+   else <#module_name#s>_noteOff(<#off_args#>);
+}
+|}],
+   [%pla{|
+void <#output#s>_noteOff(t_<#output#s>_tilde *x, t_floatarg note, t_floatarg channel) {
+   <#module_name#s>_noteOff(<#off_args#>);
+}
+|}]
+
+let controlChangeFunction (params:params) =
+   let output = params.output in
+   let module_name = params.module_name in
+   let ctrl_args =
+      ["(int)control"; "(int)value"; "(int)channel"]
+      |> (fun a -> if params.config.pass_data then "x->data"::a else a)
+      |> Pla.map_sep Pla.comma Pla.string
+   in
+   [%pla{|
+void <#output#s>_controlChange(t_<#output#s>_tilde *x, t_floatarg control, t_floatarg value, t_floatarg channel) {
+   <#module_name#s>_controlChange(<#ctrl_args#>);
+}
+|}]
+
 (** Implementation function *)
 let implementation (params:params) (code:Pla.t) : Pla.t =
    let output = params.output in
@@ -158,6 +206,9 @@ let implementation (params:params) (code:Pla.t) : Pla.t =
    let dsp_nargs,vec_decl = tildeNewFunction params.config in
    let last_w, io_decl = tildePerformFunctionVector params.config in
    let process_call = tildePerformFunctionCall module_name params params.config in
+   let main_type, init_call, default_call = getInitDefaultCalls module_name params in
+   let note_on, note_off = noteFunctions params in
+   let ctr_change = controlChangeFunction params in
    {pla|
 /* Code automatically generated by Vult https://github.com/modlfo/vult */
 #include "<#output#s>.h"
@@ -171,7 +222,7 @@ static t_class *<#output#s>_tilde_class;
 typedef struct _<#output#s>_tilde {
    t_object  x_obj;
    float dummy;
-   <#module_name#s>_process_type data;
+   <#main_type#> data;
 } t_<#output#s>_tilde;
 
 t_int *<#output#s>_tilde_perform(t_int *w)
@@ -196,8 +247,8 @@ void *<#output#s>_tilde_new()
 {
    t_<#output#s>_tilde *x = (t_<#output#s>_tilde *)pd_new(<#output#s>_tilde_class);
 
-   <#module_name#s>_process_init(x->data);
-   <#module_name#s>_default(x->data);
+   <#init_call#>
+   <#default_call#>
 <#inlets#>
 <#outlets#>
 
@@ -207,19 +258,9 @@ void *<#output#s>_tilde_new()
 void <#output#s>_tilde_delete(t_<#output#s>_tilde *x){
 
 }
-
-void <#output#s>_noteOn(t_<#output#s>_tilde *x, t_floatarg note, t_floatarg velocity, t_floatarg channel){
-   if((int)velocity) <#module_name#s>_noteOn(x->data, (int)note, (int)velocity, (int)channel);
-   else <#module_name#s>_noteOff(x->data, (int)note, (int)channel);
-}
-
-void <#output#s>_noteOff(t_<#output#s>_tilde *x, t_floatarg note, t_floatarg channel) {
-   <#module_name#s>_noteOff(x->data, (int)note, (int)channel);
-}
-
-void <#output#s>_controlChange(t_<#output#s>_tilde *x, t_floatarg control, t_floatarg value, t_floatarg channel) {
-   <#module_name#s>_controlChange(x->data, (int)control, (int)value, (int)channel);
-}
+<#note_on#>
+<#note_off#>
+<#ctr_change#>
 
 void <#output#s>_tilde_setup(void) {
    <#output#s>_tilde_class = class_new(gensym("<#output#s>~"),