Add and use PLUGIN_EXTRA_HINT_USES_MULTI_PROGS flag

source/backend/plugin/CarlaPlugin.cpp

@@ -547,7 +547,7 @@ const SaveState& CarlaPlugin::getSaveState()
 void CarlaPlugin::loadSaveState(const SaveState& saveState)
 {
     char strBuf[STR_MAX+1];
-    const bool usesMultiProgs(getType() == PLUGIN_FILE_GIG || getType() == PLUGIN_FILE_SF2 || (getType() == PLUGIN_INTERNAL && getCategory() == PLUGIN_CATEGORY_SYNTH));
+    const bool usesMultiProgs(pData->extraHints & PLUGIN_EXTRA_HINT_USES_MULTI_PROGS);
 
     gIsLoadingProject = true;
     ScopedValueSetter<bool>(gIsLoadingProject, false);

source/backend/plugin/CarlaPluginInternal.hpp

@@ -57,9 +57,10 @@ const unsigned short kPluginMaxMidiEvents = 512;
 // -----------------------------------------------------------------------
 // Extra plugin hints, hidden from backend
 
-const unsigned int PLUGIN_EXTRA_HINT_HAS_MIDI_IN   = 0x01;
-const unsigned int PLUGIN_EXTRA_HINT_HAS_MIDI_OUT  = 0x02;
-const unsigned int PLUGIN_EXTRA_HINT_CAN_RUN_RACK  = 0x04;
+const unsigned int PLUGIN_EXTRA_HINT_HAS_MIDI_IN      = 0x01;
+const unsigned int PLUGIN_EXTRA_HINT_HAS_MIDI_OUT     = 0x02;
+const unsigned int PLUGIN_EXTRA_HINT_CAN_RUN_RACK     = 0x04;
+const unsigned int PLUGIN_EXTRA_HINT_USES_MULTI_PROGS = 0x08;
 
 // -----------------------------------------------------------------------
 

source/backend/plugin/FluidSynthPlugin.cpp

@@ -926,7 +926,9 @@ public:
         pData->extraHints  = 0x0;
         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;
 
-        if (! fUses16Outs)
+        if (fUses16Outs)
+            pData->extraHints |= PLUGIN_EXTRA_HINT_USES_MULTI_PROGS;
+        else
             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;
 
         bufferSizeChanged(pData->engine->getBufferSize());

source/backend/plugin/LinuxSamplerPlugin.cpp

@@ -611,7 +611,9 @@ public:
         pData->extraHints  = 0x0;
         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;
 
-        if (! fUses16Outs)
+        if (fUses16Outs)
+            pData->extraHints |= PLUGIN_EXTRA_HINT_USES_MULTI_PROGS;
+        else
             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;
 
         bufferSizeChanged(pData->engine->getBufferSize());

source/backend/plugin/NativePlugin.cpp

@@ -1077,6 +1077,9 @@ public:
         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)
             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;
 
+        if (fDescriptor->hints & ::PLUGIN_USES_MULTI_PROGS)
+            pData->extraHints |= PLUGIN_EXTRA_HINT_USES_MULTI_PROGS;
+
         bufferSizeChanged(pData->engine->getBufferSize());
         reloadPrograms(true);
 

source/modules/native-plugins/zynaddsubfx-synth.cpp

@@ -789,9 +789,9 @@ public:
 static const NativePluginDescriptor zynaddsubfxDesc = {
     /* category  */ PLUGIN_CATEGORY_SYNTH,
 #ifdef WANT_ZYNADDSUBFX_UI
-    /* hints     */ static_cast<NativePluginHints>(PLUGIN_IS_SYNTH|PLUGIN_HAS_UI|PLUGIN_USES_STATE),
+    /* hints     */ static_cast<NativePluginHints>(PLUGIN_IS_SYNTH|PLUGIN_HAS_UI|PLUGIN_USES_MULTI_PROGS|PLUGIN_USES_STATE),
 #else
-    /* hints     */ static_cast<NativePluginHints>(PLUGIN_IS_SYNTH|PLUGIN_USES_STATE),
+    /* hints     */ static_cast<NativePluginHints>(PLUGIN_IS_SYNTH|PLUGIN_USES_MULTI_PROGS|PLUGIN_USES_STATE),
 #endif
     /* supports  */ static_cast<NativePluginSupports>(PLUGIN_SUPPORTS_CONTROL_CHANGES|PLUGIN_SUPPORTS_NOTE_AFTERTOUCH|PLUGIN_SUPPORTS_PITCHBEND|PLUGIN_SUPPORTS_ALL_SOUND_OFF),
     /* audioIns  */ 0,

source/plugin/carla-native-base.cpp

@@ -1,6 +1,6 @@
 /*
  * Carla Native Plugins
- * Copyright (C) 2013 Filipe Coelho <falktx@falktx.com>
+ * Copyright (C) 2013-2014 Filipe Coelho <falktx@falktx.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as