Fix modulation matrix when CC modulations are per voice

src/Config.h.in

@@ -18,21 +18,6 @@
 
 namespace sfz {
 
-enum ExtendedCCs {
-    pitchBend = 128,
-    channelAftertouch = 129,
-    polyphonicAftertouch = 130,
-    noteOnVelocity = 131,
-    noteOffVelocity = 132,
-    keyboardNoteNumber = 133,
-    keyboardNoteGate = 134,
-    unipolarRandom = 135,
-    bipolarRandom = 136,
-    alternate = 137,
-    keydelta = 140,
-    absoluteKeydelta = 141,
-};
-
 namespace config {
     constexpr float defaultSampleRate { 48000 };
     constexpr float maxSampleRate { 192000 };

src/sfizz/Config.h

@@ -18,21 +18,6 @@
 
 namespace sfz {
 
-enum ExtendedCCs {
-    pitchBend = 128,
-    channelAftertouch = 129,
-    polyphonicAftertouch = 130,
-    noteOnVelocity = 131,
-    noteOffVelocity = 132,
-    keyboardNoteNumber = 133,
-    keyboardNoteGate = 134,
-    unipolarRandom = 135,
-    bipolarRandom = 136,
-    alternate = 137,
-    keydelta = 140,
-    absoluteKeydelta = 141,
-};
-
 namespace config {
     constexpr float defaultSampleRate { 48000 };
     constexpr float maxSampleRate { 192000 };

src/sfizz/MidiState.cpp

@@ -36,8 +36,8 @@ void sfz::MidiState::noteOnEvent(int delay, int noteNumber, float velocity) noex
         ccEvent(delay, ExtendedCCs::unipolarRandom, unipolarDist(Random::randomGenerator));
         ccEvent(delay, ExtendedCCs::bipolarRandom, bipolarDist(Random::randomGenerator));
         ccEvent(delay, ExtendedCCs::keyboardNoteGate, activeNotes > 0 ? 1.0f : 0.0f);
-        ccEvent(delay, ExtendedCCs::keydelta, keydelta);
-        ccEvent(delay, ExtendedCCs::absoluteKeydelta, std::abs(keydelta));
+        ccEvent(delay, AriaExtendedCCs::keydelta, keydelta);
+        ccEvent(delay, AriaExtendedCCs::absoluteKeydelta, std::abs(keydelta));
         activeNotes++;
 
         ccEvent(delay, ExtendedCCs::alternate, alternate);

src/sfizz/Region.cpp

@@ -1690,8 +1690,13 @@ bool sfz::Region::processGenericCc(const Opcode& opcode, OpcodeSpec<float> spec,
         // search an existing connection of same CC number and target
         // if it exists, modify, otherwise create
         auto it = std::find_if(connections.begin(), connections.end(),
-            [ccNumber, &target](const Connection& x) -> bool
+            [ccNumber, &target, this](const Connection& x) -> bool
             {
+                if (ccModulationIsPerVoice(ccNumber))
+                    return x.source.id() == ModId::PerVoiceController &&
+                        x.source.region() == id &&
+                        x.source.parameters().cc == ccNumber &&
+                        x.target == target;
                 return x.source.id() == ModId::Controller &&
                     x.source.parameters().cc == ccNumber &&
                     x.target == target;
@@ -1730,22 +1735,11 @@ bool sfz::Region::processGenericCc(const Opcode& opcode, OpcodeSpec<float> spec,
             break;
         }
 
-        switch (p.cc) {
-        case ExtendedCCs::noteOnVelocity: // fallthrough
-        case ExtendedCCs::noteOffVelocity: // fallthrough
-        case ExtendedCCs::keyboardNoteNumber: // fallthrough
-        case ExtendedCCs::keyboardNoteGate: // fallthrough
-        case ExtendedCCs::unipolarRandom: // fallthrough
-        case ExtendedCCs::bipolarRandom: // fallthrough
-        case ExtendedCCs::alternate:
-        case ExtendedCCs::keydelta:
-        case ExtendedCCs::absoluteKeydelta:
+       if (ccModulationIsPerVoice(p.cc)) {
             conn->source = ModKey(ModId::PerVoiceController, id, p);
-            break;
-        default:
+       } else {
             conn->source = ModKey(ModId::Controller, {}, p);
-            break;
-        }
+       }
     }
 
     return true;
@@ -1850,11 +1844,21 @@ sfz::Region::Connection& sfz::Region::getOrCreateConnection(const ModKey& source
 
 sfz::Region::Connection* sfz::Region::getConnectionFromCC(int sourceCC, const ModKey& target)
 {
-    for (sfz::Region::Connection& conn : connections) {
-        if (conn.source.id() == sfz::ModId::Controller && conn.target == target) {
-            auto p = conn.source.parameters();
-            if (p.cc == sourceCC)
-                return &conn;
+    if (ccModulationIsPerVoice(sourceCC)) {
+        for (sfz::Region::Connection& conn : connections) {
+            if (conn.source.id() == sfz::ModId::PerVoiceController && conn.target == target && conn.source.region() == id) {
+                const auto& p = conn.source.parameters();
+                if (p.cc == sourceCC)
+                    return &conn;
+            }
+        }
+    } else {
+        for (sfz::Region::Connection& conn : connections) {
+            if (conn.source.id() == sfz::ModId::Controller && conn.target == target) {
+                const auto& p = conn.source.parameters();
+                if (p.cc == sourceCC)
+                    return &conn;
+            }
         }
     }
     return nullptr;

src/sfizz/SfzHelpers.h

@@ -210,6 +210,78 @@ inline CXX14_CONSTEXPR uint8_t offsetAndClampKey(uint8_t key, int offset)
     return clamp<uint8_t>(static_cast<uint8_t>(offsetKey), 0, 127);
 }
 
+enum ExtendedCCs {
+    pitchBend = 128,
+    channelAftertouch,
+    polyphonicAftertouch,
+    noteOnVelocity,
+    noteOffVelocity,
+    keyboardNoteNumber,
+    keyboardNoteGate,
+    unipolarRandom,
+    bipolarRandom,
+    alternate,
+    extendedCCupperBound
+};
+
+enum AriaExtendedCCs {
+    keydelta = 140,
+    absoluteKeydelta,
+    ariaCCupperBound
+};
+
+/**
+ * @brief Check if a CC is an ARIA-defined extended CC
+ *
+ * @param cc
+ * @return bool
+ */
+inline CXX14_CONSTEXPR bool isAriaExtendedCC(int cc) {
+    if (cc >= AriaExtendedCCs::keydelta && cc < AriaExtendedCCs::ariaCCupperBound)
+        return true;
+
+    return false;
+}
+
+/**
+ * @brief Check if a CC is an extended CC (ARIA or not)
+ *
+ * @param cc
+ * @return bool
+ */
+inline CXX14_CONSTEXPR bool isExtendedCC(int cc) {
+    if (isAriaExtendedCC(cc))
+        return true;
+
+    if (cc >= ExtendedCCs::pitchBend && cc < ExtendedCCs::extendedCCupperBound)
+        return true;
+
+    return false;
+}
+
+/**
+ * @brief Check if a CC applies per voice modulation
+ *
+ * @param cc
+ * @return bool
+ */
+inline CXX14_CONSTEXPR bool ccModulationIsPerVoice(int cc) {
+    switch (cc) {
+    case ExtendedCCs::noteOnVelocity: // fallthrough
+    case ExtendedCCs::noteOffVelocity: // fallthrough
+    case ExtendedCCs::keyboardNoteNumber: // fallthrough
+    case ExtendedCCs::keyboardNoteGate: // fallthrough
+    case ExtendedCCs::unipolarRandom: // fallthrough
+    case ExtendedCCs::bipolarRandom: // fallthrough
+    case ExtendedCCs::alternate:
+    case AriaExtendedCCs::keydelta:
+    case AriaExtendedCCs::absoluteKeydelta:
+        return true;
+    }
+
+    return false;
+}
+
 namespace literals {
     inline float operator""_norm(unsigned long long int value)
     {

src/sfizz/Voice.cpp

@@ -401,7 +401,7 @@ void Voice::Impl::updateExtendedCCValues() noexcept
     extendedCCValues_.bipolar = midiState.getCCValue(ExtendedCCs::bipolarRandom);
     extendedCCValues_.alternate = midiState.getCCValue(ExtendedCCs::alternate);
     extendedCCValues_.noteGate = midiState.getCCValue(ExtendedCCs::keyboardNoteGate);
-    extendedCCValues_.keydelta = midiState.getCCValue(ExtendedCCs::keydelta);
+    extendedCCValues_.keydelta = midiState.getCCValue(AriaExtendedCCs::keydelta);
 }
 
 bool Voice::startVoice(Layer* layer, int delay, const TriggerEvent& event) noexcept

src/sfizz/modulations/sources/Controller.cpp

@@ -170,14 +170,14 @@ void ControllerSource::generate(const ModKey& sourceKey, NumericId<Voice> voiceI
             canShortcut = true;
             break;
         }
-    case ExtendedCCs::keydelta: {
+    case AriaExtendedCCs::keydelta: {
             const auto voice = impl_->voiceManager_->getVoiceById(voiceId);
             const float fillValue = voice ? voice->getExtendedCCValues().keydelta : 0.0f;
             sfz::fill(buffer, quantize(fillValue));
             canShortcut = true;
             break;
         }
-    case ExtendedCCs::absoluteKeydelta: {
+    case AriaExtendedCCs::absoluteKeydelta: {
             const auto voice = impl_->voiceManager_->getVoiceById(voiceId);
             const float fillValue = voice ? std::abs(voice->getExtendedCCValues().keydelta) : 0.0f;
             sfz::fill(buffer, quantize(fillValue));

tests/CMakeLists.txt

@@ -36,6 +36,7 @@ set(SFIZZ_TEST_SOURCES
     PolyphonyT.cpp
     RegionActivationT.cpp
     RegionValueComputationsT.cpp
+    SfzHelpersT.cpp
     # If we're tweaking the curves this kind of tests does not make sense
     # Use integration tests with comparison curves
     # ADSREnvelopeT.cpp

tests/SfzHelpersT.cpp

@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: BSD-2-Clause
+
+// This code is part of the sfizz library and is licensed under a BSD 2-clause
+// license. You should have receive a LICENSE.md file along with the code.
+// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
+
+#include "catch2/catch.hpp"
+#include "sfizz/SfzHelpers.h"
+#include <set>
+
+template<class F>
+void checkAllCCs(const std::set<int>& validCCs, F&& check)
+{
+    for (int cc = 0; cc < sfz::config::numCCs; ++cc) {
+        INFO("The number is " << cc);
+        if (validCCs.find(cc) != validCCs.end())
+            REQUIRE(check(cc));
+        else
+            REQUIRE_FALSE(check(cc));
+    }
+}
+
+TEST_CASE("[CC] Extended CCs")
+{
+    std::set<int> supportedExtendedCCs { 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 140, 141};
+    checkAllCCs(supportedExtendedCCs, sfz::isExtendedCC);
+}
+
+TEST_CASE("[CC] ARIA Extended CCs")
+{
+    std::set<int> supportedAriaExtendedCCs { 140, 141 };
+    checkAllCCs(supportedAriaExtendedCCs, sfz::isAriaExtendedCC);
+}
+
+TEST_CASE("[CC] Per-Voice Extended CCs")
+{
+    std::set<int> perVoiceSupportedCCs { 131, 132, 133, 134, 135, 136, 137, 140, 141 };
+    checkAllCCs(perVoiceSupportedCCs, sfz::ccModulationIsPerVoice);
+}
+