Parse label_noteNN and add getters for the labels in the internal API

src/sfizz/SfzHelpers.h

@@ -20,7 +20,9 @@
 namespace sfz
 {
 
-using CCNamePair = std::pair<uint16_t, std::string>;
+using CCNamePair = std::pair<decltype(config::numCCs), std::string>;
+using NoteNamePair = std::pair<uint8_t, std::string>;
+
 template <class T>
 using MidiNoteArray = std::array<T, 128>;
 template<class ValueType>

src/sfizz/Synth.cpp

@@ -142,7 +142,9 @@ void sfz::Synth::clear()
     numMasters = 0;
     defaultSwitch = absl::nullopt;
     defaultPath = "";
-    ccNames.clear();
+    resources.midiState.reset();
+    ccLabels.clear();
+    noteLabels.clear();
     globalOpcodes.clear();
     masterOpcodes.clear();
     groupOpcodes.clear();
@@ -208,7 +210,11 @@ void sfz::Synth::handleControlOpcodes(const std::vector<Opcode>& members)
         case hash("Label_cc&"): // fallthrough
         case hash("label_cc&"):
             if (Default::ccNumberRange.containsWithEnd(member.parameters.back()))
-                ccNames.emplace_back(member.parameters.back(), std::string(member.value));
+                ccLabels.emplace_back(member.parameters.back(), std::string(member.value));
+            break;
+        case hash("label_note&"):
+            if (Default::keyRange.containsWithEnd(member.parameters.back()))
+                noteLabels.emplace_back(member.parameters.back(), std::string(member.value));
             break;
         case hash("Default_path"):
             // fallthrough
@@ -871,7 +877,7 @@ std::string sfz::Synth::exportMidnam(absl::string_view model) const
     {
         pugi::xml_node cns = device.append_child("ControlNameList");
         cns.append_attribute("Name").set_value("Controls");
-        for (const CCNamePair& pair : ccNames) {
+        for (const CCNamePair& pair : ccLabels) {
             pugi::xml_node cn = cns.append_child("Control");
             cn.append_attribute("Type").set_value("7bit");
             cn.append_attribute("Number").set_value(std::to_string(pair.first).c_str());

src/sfizz/Synth.h

@@ -388,6 +388,19 @@ public:
      */
     const Parser& getParser() const noexcept { return parser; }
 
+    /**
+     * @brief Get the note labels, if any
+     *
+     * @return const std::vector<NoteNamePair>&
+     */
+    const std::vector<NoteNamePair>& getNoteLabels() const noexcept { return noteLabels; }
+    /**
+     * @brief Get the CC labels, if any
+     *
+     * @return const std::vector<NoteNamePair>&
+     */
+    const std::vector<CCNamePair>& getCCLabels() const noexcept { return ccLabels; }
+
 protected:
     /**
      * @brief The parser callback; this is called by the parent object each time
@@ -494,8 +507,11 @@ private:
      * @return Voice*
      */
     Voice* findFreeVoice() noexcept;
-    // Names for the cc as set by the label_cc opcode
-    std::vector<CCNamePair> ccNames;
+
+    // Names for the CC and notes as set by label_cc and label_note
+    std::vector<CCNamePair> ccLabels;
+    std::vector<NoteNamePair> noteLabels;
+
     // Default active switch if multiple keyswitchable regions are present
     absl::optional<uint8_t> defaultSwitch;
     std::vector<std::string> unknownOpcodes;

tests/FilesT.cpp

@@ -563,3 +563,21 @@ TEST_CASE("[Files] Empty file")
     REQUIRE(!synth.loadSfzFile({}));
     REQUIRE(parser.getIncludedFiles().empty());
 }
+
+TEST_CASE("[Files] Labels")
+{
+    sfz::Synth synth;
+    synth.loadSfzFile(fs::current_path() / "tests/TestFiles/labels.sfz");
+    auto noteLabels = synth.getNoteLabels();
+    auto ccLabels = synth.getCCLabels();
+    REQUIRE( noteLabels.size() == 2);
+    REQUIRE( noteLabels[0].first == 12 );
+    REQUIRE( noteLabels[0].second == "Cymbals" );
+    REQUIRE( noteLabels[1].first == 65 );
+    REQUIRE( noteLabels[1].second == "Crash" );
+    REQUIRE( ccLabels.size() == 2);
+    REQUIRE( ccLabels[0].first == 54 );
+    REQUIRE( ccLabels[0].second == "Gain" );
+    REQUIRE( ccLabels[1].first == 2 );
+    REQUIRE( ccLabels[1].second == "Other" );
+}

tests/TestFiles/labels.sfz

@@ -0,0 +1,7 @@
+<control>
+label_cc54=Gain
+label_cc2=Other
+label_note12=Cymbals
+label_note65=Crash
+label_note128=Ignored
+<region> sample=*sine