Rename to DISTRHO_PLUGIN_WANT_MIDI_AS_MPE, implement in AU too

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

distrho/DistrhoInfo.hpp

@@ -553,6 +553,12 @@ START_NAMESPACE_DISTRHO
  */
 #define DISTRHO_PLUGIN_WANT_LATENCY 1
 
+/**
+   Whether the plugin wants MPE for MIDI input and/or output.
+   @note Only AU and CLAP formats implement this at the moment
+*/
+#define DISTRHO_PLUGIN_WANT_MIDI_AS_MPE 0
+
 /**
    Whether the plugin wants MIDI input.@n
    This is automatically enabled if @ref DISTRHO_PLUGIN_IS_SYNTH is true.
@@ -565,12 +571,6 @@ START_NAMESPACE_DISTRHO
  */
 #define DISTRHO_PLUGIN_WANT_MIDI_OUTPUT 1
 
-/**
-   Whether the plugin uses MIDI MPE for MIDI input and MIDI output.
-   @note Only CLAP implements this macro at the moment
-*/
-#define DISTRHO_PLUGIN_MIDI_MPE 0
-
 /**
    Whether the plugin wants to change its own parameter inputs.@n
    Not all hosts or plugin formats support this,

distrho/src/DistrhoPluginAU.cpp

@@ -686,6 +686,17 @@ public:
             outWritable = true;
             return noErr;
 
+        case kAudioUnitProperty_SupportsMPE:
+            DISTRHO_SAFE_ASSERT_UINT_RETURN(inScope == kAudioUnitScope_Global, inScope, kAudioUnitErr_InvalidScope);
+            DISTRHO_SAFE_ASSERT_UINT_RETURN(inElement == 0, inElement, kAudioUnitErr_InvalidElement);
+           #if DISTRHO_PLUGIN_WANT_MIDI_AS_MPE
+            outDataSize = sizeof(UInt32);
+            outWritable = false;
+            return noErr;
+           #else
+            return kAudioUnitErr_InvalidProperty;
+           #endif
+
         case kAudioUnitProperty_CocoaUI:
             DISTRHO_SAFE_ASSERT_UINT_RETURN(inScope == kAudioUnitScope_Global, inScope, kAudioUnitErr_InvalidScope);
             DISTRHO_SAFE_ASSERT_UINT_RETURN(inElement == 0, inElement, kAudioUnitErr_InvalidElement);
@@ -1055,6 +1066,12 @@ public:
             }
             return noErr;
 
+       #if DISTRHO_PLUGIN_WANT_MIDI_AS_MPE
+        case kAudioUnitProperty_SupportsMPE:
+            *static_cast<UInt32*>(outData) = 1;
+            return noErr;
+       #endif
+
        #if DISTRHO_PLUGIN_HAS_UI
         case kAudioUnitProperty_CocoaUI:
             {

distrho/src/DistrhoPluginCLAP.cpp

@@ -67,12 +67,6 @@
 # define DPF_CLAP_TIMER_INTERVAL 16 /* ~60 fps */
 #endif
 
-#if defined(DISTRHO_PLUGIN_MIDI_MPE) && DISTRHO_PLUGIN_MIDI_MPE
-# define DPF_CLAP_NOTE_DIALECT CLAP_NOTE_DIALECT_MIDI_MPE
-#else
-# define DPF_CLAP_NOTE_DIALECT CLAP_NOTE_DIALECT_MIDI
-#endif
-
 START_NAMESPACE_DISTRHO
 
 // --------------------------------------------------------------------------------------------------------------------
@@ -2290,23 +2284,33 @@ static bool CLAP_ABI clap_plugin_note_ports_get(const clap_plugin_t*, uint32_t,
 {
     if (is_input)
     {
-       #if DISTRHO_PLUGIN_WANT_MIDI_INPUT
+      #if DISTRHO_PLUGIN_WANT_MIDI_INPUT
         info->id = 0;
-        info->supported_dialects = DPF_CLAP_NOTE_DIALECT;
-        info->preferred_dialect = DPF_CLAP_NOTE_DIALECT;
+       #if DISTRHO_PLUGIN_WANT_MIDI_AS_MPE
+        info->supported_dialects = CLAP_NOTE_DIALECT_MIDI | CLAP_NOTE_DIALECT_MIDI_MPE;
+        info->preferred_dialect = CLAP_NOTE_DIALECT_MIDI_MPE;
+       #else
+        info->supported_dialects = CLAP_NOTE_DIALECT_MIDI;
+        info->preferred_dialect = CLAP_NOTE_DIALECT_MIDI;
+       #endif
         std::strcpy(info->name, "Event/MIDI Input");
         return true;
-       #endif
+      #endif
     }
     else
     {
-       #if DISTRHO_PLUGIN_WANT_MIDI_OUTPUT
+      #if DISTRHO_PLUGIN_WANT_MIDI_OUTPUT
         info->id = 0;
-        info->supported_dialects = DPF_CLAP_NOTE_DIALECT;
-        info->preferred_dialect = DPF_CLAP_NOTE_DIALECT;
+       #if DISTRHO_PLUGIN_WANT_MIDI_AS_MPE
+        info->supported_dialects = CLAP_NOTE_DIALECT_MIDI | CLAP_NOTE_DIALECT_MIDI_MPE;
+        info->preferred_dialect = CLAP_NOTE_DIALECT_MIDI_MPE;
+       #else
+        info->supported_dialects = CLAP_NOTE_DIALECT_MIDI;
+        info->preferred_dialect = CLAP_NOTE_DIALECT_MIDI;
+       #endif
         std::strcpy(info->name, "Event/MIDI Output");
         return true;
-       #endif
+      #endif
     }
 
     return false;

distrho/src/DistrhoPluginChecks.h

@@ -65,6 +65,10 @@
 # define DISTRHO_PLUGIN_WANT_LATENCY 0
 #endif
 
+#ifndef DISTRHO_PLUGIN_WANT_MIDI_AS_MPE
+# define DISTRHO_PLUGIN_WANT_MIDI_AS_MPE 0
+#endif
+
 #ifndef DISTRHO_PLUGIN_WANT_MIDI_OUTPUT
 # define DISTRHO_PLUGIN_WANT_MIDI_OUTPUT 0
 #endif
@@ -178,6 +182,13 @@
 # error Synths need audio output to work!
 #endif
 
+// --------------------------------------------------------------------------------------------------------------------
+// Test if MIDI as MPE enabled where it doesn't make sense
+
+#if DISTRHO_PLUGIN_WANT_MIDI_AS_MPE && ! (DISTRHO_PLUGIN_WANT_MIDI_INPUT || DISTRHO_PLUGIN_WANT_MIDI_OUTPUT)
+# error MIDI as MPE needs MIDI input or output to work!
+#endif
+
 // --------------------------------------------------------------------------------------------------------------------
 // Enable MIDI input if synth, test if midi-input disabled when synth