Dynamic AU res id based on plugin unique id

Signed-off-by: falkTX <falktx@gmail.com>

2 files changed, 22 insertions, 4 deletions

diff --git a/distrho/DistrhoPlugin.hpp b/distrho/DistrhoPlugin.hpp
index 1da2bdb6..9eecce6c 100644
--- a/distrho/DistrhoPlugin.hpp
+++ b/distrho/DistrhoPlugin.hpp
@@ -771,7 +771,7 @@ protected:
 
    /**
       Get the plugin unique Id.@n
-      This value is used by LADSPA, DSSI and VST plugin formats.
+      This value is used by LADSPA, DSSI, VST and AU plugin formats.
       @see d_cconst()
     */
     virtual int64_t getUniqueId() const = 0;
diff --git a/distrho/src/DistrhoPluginAUexport.cpp b/distrho/src/DistrhoPluginAUexport.cpp
index 2c1f749f..e60f1ba1 100644
--- a/distrho/src/DistrhoPluginAUexport.cpp
+++ b/distrho/src/DistrhoPluginAUexport.cpp
@@ -21,7 +21,7 @@
 
 // -----------------------------------------------------------------------
 
-void au_generate_r(const char* const basename)
+int au_generate_r(const char* const basename)
 {
     USE_NAMESPACE_DISTRHO
 
@@ -72,6 +72,23 @@ void au_generate_r(const char* const basename)
         rFile << "#define DISTRHO_PLUGIN_DESCRIPTION \"" + description + "\"\n";
     }
 
+    // res id
+    if (const int64_t uniqueId = plugin.getUniqueId())
+    {
+        if (uniqueId < 0)
+        {
+            d_stderr2("AU plugin Id cannot be negative");
+            return 1;
+        }
+        if (uniqueId >= UINT32_MAX)
+        {
+            d_stderr2("AU plugin Id cannot be higher than uint32");
+            return 1;
+        }
+
+        rFile << "#define DISTRHO_PLUGIN_AU_RES_ID \"" + String(uniqueId) + "\"\n";
+    }
+
 #ifndef DEBUG
     // version
     {
@@ -88,6 +105,8 @@ void au_generate_r(const char* const basename)
 
     rFile.close();
     std::cout << " done!" << std::endl;
+
+    return 0;
 }
 
 // -----------------------------------------------------------------------
@@ -100,8 +119,7 @@ int main(int argc, char* argv[])
         return 1;
     }
 
-    au_generate_r(argv[1]);
-    return 0;
+    return au_generate_r(argv[1]);
 }
 
 // -----------------------------------------------------------------------