Improved the multi-song XMI support

- Allow selecting every individual song of the XMI file
- Allow dynamic song switch without re-opening of a file
- Fixed XMI2MID converter with adding an ability to export every individual song
- Added hooks for loop start and end events
- Added an option to immediately stop the song processing on loop end reaching (needed to perform dynamic song switch at the loop end point)

1 files changed, 12 insertions, 0 deletions

diff --git a/src/midi_sequencer.hpp b/src/midi_sequencer.hpp
index 8872fde..2cba080 100644
--- a/src/midi_sequencer.hpp
+++ b/src/midi_sequencer.hpp
@@ -387,6 +387,12 @@ private:
     //! Set the number of loops limit. Lesser than 0 - loop infinite
     int     m_loopCount;
 
+    //! The number of track of multi-track file (for exmaple, XMI) to load
+    int     m_loadTrackNumber;
+
+    //! The XMI-specific list of raw songs, converted into SMF format
+    std::vector<std::vector<uint8_t > > m_rawSongsData;
+
     /**
      * @brief Loop stack entry
      */
@@ -612,6 +618,12 @@ public:
     void setSoloTrack(size_t track);
 
     /**
+     * @brief Set the track number of a multi-track file (such as XMI)
+     * @param trackNumber Identifier of the track to load (or -1 to mix all tracks as one song)
+     */
+    void setLoadTrack(int track);
+
+    /**
      * @brief Defines a handler for callback trigger events
      * @param handler Handler to invoke from the sequencer when triggered, or NULL.
      * @param userData Instance of the library