From 4c719e0eaba0e244cc5575a89b7d22d8726a860c Mon Sep 17 00:00:00 2001
From: Harald Eilertsen <haraldei@anduin.net>
Date: Sat, 13 Mar 2021 21:15:16 +0100
Subject: Improve makeplugin script

Fetch number of control ports and their labels from the WinVST source
files.
---
 plugins/LV2/makeplugin | 47 ++++++++++++++++++++++++++++++++++-------------
 1 file changed, 34 insertions(+), 13 deletions(-)

diff --git a/plugins/LV2/makeplugin b/plugins/LV2/makeplugin
index bc28335..be152b1 100755
--- a/plugins/LV2/makeplugin
+++ b/plugins/LV2/makeplugin
@@ -10,19 +10,20 @@ def make_param_assigns(num)
     .join("\n    ")
 end
 
-def make_ctrl_port(n)
+def make_ctrl_port(n, name)
   %Q{      a lv2:InputPort , lv2:ControlPort ;
       lv2:index #{n} ;
       lv2:symbol "#{param_sym(n)}" ;
-      lv2:name "Parameter #{param_sym(n)}" ;
+      lv2:name "#{name}" ;
       lv2:default 0.5 ;
       lv2:minimum 0.0 ;
       lv2:maximum 1.0 ;}
 end
 
-def make_lv2_port_defs(num)
+def make_lv2_port_defs(pi)
+  num = pi[:n_ctrl_ports]
   ctrlports = (0 ... num)
-    .map { |n| make_ctrl_port(n) }
+    .map { |n| make_ctrl_port(n, pi["ctrl_port_#{param_sym(n)}".to_sym]) }
     .join("\n    ] , [\n")
 
   ctrlports + %Q{
@@ -49,7 +50,7 @@ def make_lv2_port_defs(num)
 end
 
 if ARGV.length < 1
-  puts "Usage: #{__FILE__} <PluginName> [<NCtrlPorts>]"
+  puts "Usage: #{__FILE__} <PluginName>"
   exit
 end
 
@@ -58,8 +59,6 @@ root = File.dirname(__FILE__)
 plugin_name = ARGV[0]
 plugin_slug = plugin_name.downcase
 
-n_ctrl_ports = ARGV[1] || '1'
-
 target_dir = File.join(root, 'src', plugin_name)
 template_dir = File.join(root, 'Template')
 
@@ -72,9 +71,7 @@ def find_plugin_info(db, plugin_name)
   File.open(db) do |f|
     pat = /^\s*(\w+): \"([^"]+)\",/
     f.each_line do |line|
-      if found && line =~ /^\s*\},$/
-        return pi
-      end
+      break if found && line =~ /^\s*\},$/
 
       pat.match(line) do |m|
         if m[1] == 'Name' && m[2] == plugin_name
@@ -86,6 +83,29 @@ def find_plugin_info(db, plugin_name)
     end
   end
 
+  header_file = File.join('../WinVST', plugin_name, "#{plugin_name}.h")
+
+  File.open(header_file) do |f|
+    f.each_line do |line|
+      if line =~ /kNumParameters\s*=\s*(\d+)/
+          pi[:n_ctrl_ports] = $1.to_i
+      end
+    end
+  end
+
+  class_file = File.join('../WinVST', plugin_name, "#{plugin_name}.cpp")
+  fun = ""
+
+  File.open(class_file) do |f|
+    f.each_line do |line|
+      if line =~ /void #{plugin_name}::(\w+)/
+        fun = $1
+      elsif fun == 'getParameterName' and line =~ /case\s+kParam([A-Z])\:\s+vst_strncpy\s*\([^,]*,\s*\"(\w+)\",/
+        pi["ctrl_port_#{$1}".to_sym] = $2
+      end
+    end
+  end
+
   return pi
 end
 
@@ -106,6 +126,7 @@ plugin_info = find_plugin_info(File.join(root, '../../cheatsheet/src/database.js
 
 puts "Creating plugin #{plugin_name}..."
 puts "Type: #{plugin_info[:type]}"
+puts "CTRL ports: #{plugin_info[:n_ctrl_ports]}"
 
 Templates = %w{
     manifest.ttl.in
@@ -121,9 +142,9 @@ begin
     tpl = IO.read(File.join(template_dir, t))
       .gsub('@Plugin@', plugin_name)
       .gsub('@plugin@', plugin_slug)
-      .gsub('@NCtrlPorts@', n_ctrl_ports)
-      .gsub('@AssignParams@', make_param_assigns(n_ctrl_ports.to_i))
-      .gsub('@TTLPortDefs@', make_lv2_port_defs(n_ctrl_ports.to_i))
+      .gsub('@NCtrlPorts@', plugin_info[:n_ctrl_ports].to_s)
+      .gsub('@AssignParams@', make_param_assigns(plugin_info[:n_ctrl_ports]))
+      .gsub('@TTLPortDefs@', make_lv2_port_defs(plugin_info))
       .gsub('@TTLPluginType@', get_lv2_plugin_type(plugin_info))
 
     fname = t.sub('Plugin', plugin_name)
-- 
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