WIP get some sidechain in there

tote-bag-labs · Aug 18, 2024 · a86dca7 · a86dca7
1 parent 0d1b5f8
commit a86dca7
Showing 1 changed file with 20 additions and 10 deletions.
diff --git a/src/PluginProcessor.cpp b/src/PluginProcessor.cpp
@@ -75,6 +75,7 @@ ValentineAudioProcessor::ValentineAudioProcessor()
     #if !JucePlugin_IsMidiEffect
         #if !JucePlugin_IsSynth
                           .withInput ("Input", juce::AudioChannelSet::stereo(), true)
+                          .withInput ("Sidechain", juce::AudioChannelSet::stereo(), true)
         #endif
                           .withOutput ("Output", juce::AudioChannelSet::stereo(), true)
     #endif
@@ -308,7 +309,13 @@ void ValentineAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer,
     juce::ScopedNoDenormals noDenormals;
     auto totalNumInputChannels = getTotalNumInputChannels();
     auto totalNumOutputChannels = getTotalNumOutputChannels();
-    auto bufferSize = buffer.getNumSamples();
+
+    auto inputOutputBuffer = getBusBuffer (buffer, true, 0);
+    const auto sideChainBuffer = getBusBuffer (buffer, true, 1);
+
+    const auto numMainInputChannels = inputOutputBuffer.getNumChannels();
+
+    auto bufferSize = inputOutputBuffer.getNumSamples();
     auto currentSamplesPerBlock = bufferSize;
 
     if (latencyChanged.get())
@@ -321,19 +328,19 @@ void ValentineAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer,
     // oversampling latency. Copying into the process buffer after this, then, would undo the
     // purpose of the delay: maintaining phase coherence between processed and unprocessed
     // signals.
-    processBuffer.setSize (totalNumOutputChannels,
+    processBuffer.setSize (numMainInputChannels,
                            currentSamplesPerBlock,
                            true,
                            true,
                            true);
-    for (auto channel = 0; channel < totalNumInputChannels; ++channel)
+    for (auto channel = 0; channel < numMainInputChannels; ++channel)
         processBuffer.copyFrom (channel,
                                 0,
-                                buffer.getReadPointer (channel),
-                                buffer.getNumSamples());
+                                inputOutputBuffer.getReadPointer (channel),
+                                inputOutputBuffer.getNumSamples());
 
-    prepareInputBuffer (buffer,
-                        totalNumInputChannels,
+    prepareInputBuffer (inputOutputBuffer,
+                        numMainInputChannels,
                         totalNumOutputChannels,
                         currentSamplesPerBlock);
 
@@ -342,7 +349,7 @@ void ValentineAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer,
         return;
     }
 
-    inputMeterSource.measureBlock (buffer);
+    inputMeterSource.measureBlock (sideChainBuffer);
 
     // "Downsample" and Bitcrush processing
     if (crushOn.get())
@@ -428,11 +435,14 @@ void ValentineAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer,
             auto processed = processBuffer.getSample (i, j);
             auto unprocessed = buffer.getSample (i, j);
 
-            buffer.setSample (i, j, mix * processed + (1.0f - currentMix) * unprocessed);
+            inputOutputBuffer.setSample (i,
+                                         j,
+                                         mix * processed
+                                             + (1.0f - currentMix) * unprocessed);
         }
     }
 
-    outputMeterSource.measureBlock (buffer);
+    outputMeterSource.measureBlock (inputOutputBuffer);
 }
 
 void ValentineAudioProcessor::processBlockBypassed (juce::AudioBuffer<float>& buffer,