Add vel2depth

src/sfizz/Region.cpp

@@ -1251,8 +1251,22 @@ bool sfz::Region::parseOpcode(const Opcode& rawOpcode)
                 ModKey::createNXYZ(ModId::FilCutoff, id)).sourceDepth = *value;
         break;
 
-        // TODO(jpc): pitcheg_vel2depth
+    case hash("pitcheg_vel&depth"):
-        // TODO(jpc): fileg_vel2depth
+        if (opcode.parameters.front() != 2)
+            return false; // Was not vel2...
+        if (auto value = readOpcode(opcode.value, Default::pitchEgDepthRange))
+            getOrCreateConnection(
+                ModKey::createNXYZ(ModId::PitchEG, id),
+                ModKey::createNXYZ(ModId::Pitch, id)).velToDepth = *value;
+        break;
+    case hash("fileg_vel&depth"):
+        if (opcode.parameters.front() != 2)
+            return false; // Was not vel2...
+        if (auto value = readOpcode(opcode.value, Default::filterEgDepthRange))
+            getOrCreateConnection(
+                ModKey::createNXYZ(ModId::FilEG, id),
+                ModKey::createNXYZ(ModId::FilCutoff, id)).velToDepth = *value;
+        break;
 
     // Flex envelopes
     case hash("eg&_dynamic"):

src/sfizz/Region.h

@@ -442,6 +442,7 @@ struct Region {
         ModKey source;
         ModKey target;
         float sourceDepth = 0.0f;
+        float velToDepth = 0.0f;
     };
     std::vector<Connection> connections;
     Connection& getOrCreateConnection(const ModKey& source, const ModKey& target);

src/sfizz/Synth.cpp

@@ -820,7 +820,7 @@ void sfz::Synth::renderBlock(AudioSpan<float> buffer) noexcept
             if (voice->isFree())
                 continue;
 
-            mm.beginVoice(voice->getId(), voice->getRegion()->getId());
+            mm.beginVoice(voice->getId(), voice->getRegion()->getId(), voice->getTriggerEvent().value);
 
             activeVoices++;
             renderVoiceToOutputs(*voice, *tempSpan);
@@ -1558,7 +1558,7 @@ void sfz::Synth::setupModMatrix()
                 continue;
             }
 
-            if (!mm.connect(source, target, conn.sourceDepth)) {
+            if (!mm.connect(source, target, conn.sourceDepth, conn.velToDepth)) {
                 DBG("[sfizz] Failed to connect modulation source and target");
                 ASSERTFALSE;
             }

src/sfizz/modulations/ModMatrix.cpp

@@ -27,6 +27,8 @@ struct ModMatrix::Impl {
     NumericId<Voice> currentVoiceId_ {};
     NumericId<Region> currentRegionId_ {};
 
+    float currentVoiceTriggerValue_ {};
+
     struct Source {
         ModKey key;
         ModGenerator* gen {};
@@ -36,6 +38,7 @@ struct ModMatrix::Impl {
 
     struct ConnectionData {
         float sourceDepth_ {};
+        float velToDepth_ {};
     };
 
     struct Target {
@@ -190,7 +193,7 @@ ModMatrix::TargetId ModMatrix::findTarget(const ModKey& key) const
     return TargetId(it->second);
 }
 
-bool ModMatrix::connect(SourceId sourceId, TargetId targetId, float sourceDepth)
+bool ModMatrix::connect(SourceId sourceId, TargetId targetId, float sourceDepth, float velToDepth)
 {
     Impl& impl = *impl_;
     unsigned sourceIndex = sourceId.number();
@@ -202,6 +205,7 @@ bool ModMatrix::connect(SourceId sourceId, TargetId targetId, float sourceDepth)
     Impl::Target& target = impl.targets_[targetIndex];
     Impl::ConnectionData& conn = target.connectedSources[sourceIndex];
     conn.sourceDepth_ = sourceDepth;
+    conn.velToDepth_ = velToDepth;
 
     return true;
 }
@@ -302,13 +306,15 @@ void ModMatrix::endCycle()
     impl.numFrames_ = 0;
 }
 
-void ModMatrix::beginVoice(NumericId<Voice> voiceId, NumericId<Region> regionId)
+void ModMatrix::beginVoice(NumericId<Voice> voiceId, NumericId<Region> regionId, float triggerValue)
 {
     Impl& impl = *impl_;
 
     impl.currentVoiceId_ = voiceId;
     impl.currentRegionId_ = regionId;
 
+    impl.currentVoiceTriggerValue_ = triggerValue;
+
     ASSERT(regionId);
 
     const auto idNumber = static_cast<size_t>(regionId.number());
@@ -345,6 +351,8 @@ void ModMatrix::endVoice()
 
     impl.currentVoiceId_ = {};
     impl.currentRegionId_ = {};
+
+    impl.currentVoiceTriggerValue_ = 0.0f;
 }
 
 float* ModMatrix::getModulation(TargetId targetId)
@@ -354,6 +362,7 @@ float* ModMatrix::getModulation(TargetId targetId)
 
     Impl& impl = *impl_;
     const NumericId<Region> regionId = impl.currentRegionId_;
+    const float triggerValue = impl.currentVoiceTriggerValue_;
     const uint32_t targetIndex = targetId.number();
     Impl::Target &target = impl.targets_[targetIndex];
     const int targetFlags = target.key.flags();
@@ -381,7 +390,6 @@ float* ModMatrix::getModulation(TargetId targetId)
     // then add or multiply, depending on target flags
     while (sourcesPos != sourcesEnd) {
         Impl::Source &source = impl.sources_[sourcesPos->first];
-        const float sourceDepth = sourcesPos->second.sourceDepth_;
         const int sourceFlags = source.key.flags();
 
         // only accept per-voice sources of the same region
@@ -398,6 +406,12 @@ float* ModMatrix::getModulation(TargetId targetId)
                 source.bufferReady = true;
             }
 
+            float sourceDepth = sourcesPos->second.sourceDepth_;
+            if (sourceFlags & kModIsPerVoice) {
+                const float velToDepth = sourcesPos->second.velToDepth_;
+                sourceDepth += triggerValue * velToDepth;
+            }
+
             if (isFirstSource) {
                 if (sourceDepth != 1) {
                     for (uint32_t i = 0; i < numFrames; ++i)

src/sfizz/modulations/ModMatrix.h

@@ -92,9 +92,10 @@ public:
      * @param sourceId source of the connection
      * @param targetId target of the connection
      * @param sourceDepth amount which multiplies the source output
+     * @param velToDepth amount which full velocity adds to the source depth
      * @return true if the connection was successfully made, otherwise false
      */
-    bool connect(SourceId sourceId, TargetId targetId, float sourceDepth);
+    bool connect(SourceId sourceId, TargetId targetId, float sourceDepth, float velToDepth = 0.0f);
 
     /**
      * @brief Reinitialize modulation sources overall.
@@ -134,8 +135,9 @@ public:
      *
      * @param voiceId the identifier of the current voice
      * @param regionId the identifier of the region of the current voice
+     * @param triggerValue the velocity of the current voice
      */
-    void beginVoice(NumericId<Voice> voiceId, NumericId<Region> regionId);
+    void beginVoice(NumericId<Voice> voiceId, NumericId<Region> regionId, float triggerValue);
 
     /**
      * @brief End modulation processing for a given voice.