Documented the midi state

src/sfizz/MidiState.h

@@ -5,8 +5,20 @@
 
 namespace sfz
 {
+/**
+ * @brief Holds the current "MIDI state", meaning the known state of all CCs
+ * currently, as well as the note velocities that triggered the currently
+ * pressed notes.
+ *
+ */
 struct MidiState
 {
+    /**
+     * @brief Update the state after a note on event
+     *
+     * @param noteNumber
+     * @param velocity
+     */
 	inline void noteOn(int noteNumber, uint8_t velocity)
 	{
 		if (noteNumber >= 0 && noteNumber < 128) {
@@ -15,6 +27,12 @@ struct MidiState
 		}
 	}
 
+    /**
+     * @brief Register a note off and get the note duration
+     *
+     * @param noteNumber
+     * @return float
+     */
 	inline float getNoteDuration(int noteNumber) const
 	{
 		if (noteNumber >= 0 && noteNumber < 128) {
@@ -26,6 +44,12 @@ struct MidiState
 		return 0.0f;
 	}
 
+    /**
+     * @brief Get the note on velocity for a given note
+     *
+     * @param noteNumber
+     * @return uint8_t
+     */
 	inline uint8_t getNoteVelocity(int noteNumber) const
 	{
 		if (noteNumber >= 0 && noteNumber < 128)
@@ -33,8 +57,22 @@ struct MidiState
 
 		return 0;
 	}
+
+    /**
+     * @brief Stores the note on times.
+     *
+     */
 	std::array<std::chrono::steady_clock::time_point, 128> noteOnTimes { };
+    /**
+     * @brief Stores the velocity of the note ons for currently
+     * depressed notes.
+     *
+     */
 	std::array<uint8_t, 128> lastNoteVelocities { };
+    /**
+     * @brief Current known values for the CCs.
+     *
+     */
 	CCValueArray cc;
 };
 }