From 797140d1ca54b176cc01b4a28d07f6b98edba031 Mon Sep 17 00:00:00 2001
From: Damien Zammit <damien@zamaudio.com>
Date: Sun, 27 Jan 2019 18:32:27 +1000
Subject: AU fixes 2 (#118)

* AU fixes 2

* Try to fix params
---
 Makefile.plugins.mk             |  6 +++---
 distrho/src/DistrhoPluginAU.cpp | 29 +++++++++++++++++++++++++++--
 2 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/Makefile.plugins.mk b/Makefile.plugins.mk
index 4fb5c3e2..e3fad401 100644
--- a/Makefile.plugins.mk
+++ b/Makefile.plugins.mk
@@ -79,8 +79,6 @@ AU_LINK_FLAGS = \
      -bundle \
 	 -framework AudioToolbox \
 	 -framework AudioUnit \
-	 -framework CoreAudio \
-	 -framework CoreServices \
      -exported_symbols_list $(DPF_PATH)/distrho/src/DistrhoPluginAU.exp
 
 # not needed yet
@@ -88,7 +86,8 @@ AU_LINK_FLAGS = \
 #  	 -I$(DPF_PATH)/distrho/src/CoreAudio106/AudioUnits/AUPublic/AUInstrumentBase
 #	 -I$(DPF_PATH)/distrho/src/CoreAudio106/AudioUnits/AUPublic/AUViewBase
 #	 -I$(DPF_PATH)/distrho/src/CoreAudio106/AudioUnits/AUPublic/OtherBases
-
+#	 -framework CoreAudio \
+#	 -framework CoreServices \
 
 # ---------------------------------------------------------------------------------------------------------------------
 # Handle UI stuff, disable UI support automatically
@@ -319,6 +318,7 @@ $(BUILD_DIR)/step1.rsrc: $(DPF_PATH)/distrho/src/DistrhoPluginAU.r $(BUILD_DIR)/
         -i $(DPF_PATH)/distrho/src/CoreAudio106/AudioUnits/AUPublic/OtherBases \
         -i $(DPF_PATH)/distrho/src/CoreAudio106/AudioUnits/AUPublic/Utility \
         -i $(DPF_PATH)/distrho/src/CoreAudio106/PublicUtility \
+        ${REZFLAGS} \
         -I /System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Versions/A/Headers \
 		-o $@
 
diff --git a/distrho/src/DistrhoPluginAU.cpp b/distrho/src/DistrhoPluginAU.cpp
index 015d01ac..c31e9c08 100644
--- a/distrho/src/DistrhoPluginAU.cpp
+++ b/distrho/src/DistrhoPluginAU.cpp
@@ -164,10 +164,31 @@ public:
         return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
     }
 
-    void SetParameter(AudioUnitParameterID paramID,
+    void SetParameter(AudioUnitParameterID index,
                       AudioUnitParameterValue value) override
     {
-        fPlugin.setParameterValue(paramID, (float)value);
+        const uint32_t hints(fPlugin.getParameterHints(index));
+        const ParameterRanges& ranges(fPlugin.getParameterRanges(index));
+
+        if (hints & kParameterIsBoolean)
+        {
+            const float midRange = ranges.min + (ranges.max - ranges.min) / 2.0f;
+            value = value > midRange ? ranges.max : ranges.min;
+        }
+        else if (hints & kParameterIsInteger)
+        {
+            value = std::round(value);
+        }
+
+        fPlugin.setParameterValue(index, value);
+        //printf("SET: id=%d val=%f\n", index, value);
+    }
+
+    AudioUnitParameterValue GetParameter(AudioUnitParameterID index) override
+    {
+        AudioUnitParameterValue value = AUEffectBase::GetParameter(index);
+        //printf("GET: id=%d val=%f\n", index, value);
+        return value;
     }
 
     bool SupportsTail() override
@@ -194,6 +215,10 @@ public:
             destBuffer[i] = (Float32 *)outBuffer.mBuffers[i].mData;
         }
 
+        for (i = 0; i < fPlugin.getParameterCount(); i++) {
+            SetParameter(i, GetParameter(i));
+        }
+
         fPlugin.run((const float **)srcBuffer, (float **)destBuffer, inFramesToProcess);
 
         ioActionFlags &= ~kAudioUnitRenderAction_OutputIsSilence;
-- 
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